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  Subjects -> MEDICAL SCIENCES (Total: 7268 journals)
    - ALLERGOLOGY AND IMMUNOLOGY (198 journals)
    - ANAESTHESIOLOGY (104 journals)
    - CARDIOVASCULAR DISEASES (306 journals)
    - CHIROPRACTIC, HOMEOPATHY, OSTEOPATHY (21 journals)
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    - EMERGENCY AND INTENSIVE CRITICAL CARE (107 journals)
    - ENDOCRINOLOGY (137 journals)
    - FORENSIC SCIENCES (33 journals)
    - GASTROENTEROLOGY AND HEPATOLOGY (162 journals)
    - GERONTOLOGY AND GERIATRICS (115 journals)
    - HEMATOLOGY (141 journals)
    - HYPNOSIS (4 journals)
    - INTERNAL MEDICINE (134 journals)
    - LABORATORY AND EXPERIMENTAL MEDICINE (87 journals)
    - MEDICAL GENETICS (59 journals)
    - MEDICAL SCIENCES (1810 journals)
    - NURSES AND NURSING (294 journals)
    - OBSTETRICS AND GYNECOLOGY (173 journals)
    - ONCOLOGY (351 journals)
    - OPHTHALMOLOGY AND OPTOMETRY (122 journals)
    - ORTHOPEDICS AND TRAUMATOLOGY (146 journals)
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    - RESPIRATORY DISEASES (90 journals)
    - RHEUMATOLOGY (63 journals)
    - SPORTS MEDICINE (68 journals)
    - SURGERY (353 journals)
    - UROLOGY, NEPHROLOGY AND ANDROLOGY (135 journals)

MEDICAL SCIENCES (1810 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 3562 Journals sorted alphabetically
16 de Abril     Open Access  
AADE in Practice     Hybrid Journal   (Followers: 4)
ABCS Health Sciences     Open Access   (Followers: 1)
Abia State University Medical Students' Association Journal     Full-text available via subscription  
ACIMED     Open Access   (Followers: 1)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 39)
Acta Bio Medica     Full-text available via subscription   (Followers: 2)
Acta Bioethica     Open Access   (Followers: 1)
Acta Bioquimica Clinica Latinoamericana     Open Access   (Followers: 1)
Acta Facultatis Medicae Naissensis     Open Access  
Acta Informatica Medica     Open Access   (Followers: 1)
Acta Medica Bulgarica     Open Access  
Acta Medica Colombiana     Open Access   (Followers: 1)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Medica Indonesiana     Open Access  
Acta medica Lituanica     Open Access  
Acta Medica Marisiensis     Open Access  
Acta Medica Martiniana     Open Access  
Acta Medica Nagasakiensia     Open Access  
Acta Medica Peruana     Open Access   (Followers: 2)
Acta Médica Portuguesa     Open Access  
Acta Medica Saliniana     Open Access  
Acta Scientiarum. Health Sciences     Open Access  
Acupuncture & Electro-Therapeutics Research     Full-text available via subscription   (Followers: 2)
Addiction Science & Clinical Practice     Open Access   (Followers: 7)
Addictive Behaviors Reports     Open Access   (Followers: 5)
Advanced Health Care Technologies     Open Access   (Followers: 4)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advances in Bioscience and Clinical Medicine     Open Access   (Followers: 5)
Advances in Clinical Chemistry     Full-text available via subscription   (Followers: 29)
Advances in Life Course Research     Hybrid Journal   (Followers: 8)
Advances in Lipobiology     Full-text available via subscription   (Followers: 2)
Advances in Medical Education and Practice     Open Access   (Followers: 26)
Advances in Medical Sciences     Hybrid Journal   (Followers: 6)
Advances in Medicinal Chemistry     Full-text available via subscription   (Followers: 5)
Advances in Medicine     Open Access   (Followers: 2)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 4)
Advances in Molecular Oncology     Open Access   (Followers: 1)
Advances in Molecular Toxicology     Full-text available via subscription   (Followers: 7)
Advances in Phytomedicine     Full-text available via subscription  
Advances in Preventive Medicine     Open Access   (Followers: 6)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 20)
Advances in Therapy     Hybrid Journal   (Followers: 5)
Advances in Veterinary Science and Comparative Medicine     Full-text available via subscription   (Followers: 13)
Advances in Virus Research     Full-text available via subscription   (Followers: 5)
Advances in Wound Care     Hybrid Journal   (Followers: 10)
African Health Sciences     Open Access   (Followers: 2)
African Journal of Biomedical Research     Open Access  
African Journal of Clinical and Experimental Microbiology     Open Access   (Followers: 1)
African Journal of Laboratory Medicine     Open Access   (Followers: 2)
African Journal of Medical and Health Sciences     Open Access   (Followers: 1)
African Journal of Trauma     Open Access  
Afrimedic Journal     Open Access   (Followers: 2)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
AIDS Research and Human Retroviruses     Hybrid Journal   (Followers: 8)
AJOB Primary Research     Partially Free   (Followers: 3)
Aktuelle Ernährungsmedizin     Hybrid Journal   (Followers: 4)
Al-Azhar Assiut Medical Journal     Open Access  
Alexandria Journal of Medicine     Open Access  
Allgemeine Homöopathische Zeitung     Hybrid Journal   (Followers: 2)
Alpha Omegan     Full-text available via subscription  
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3)
American Journal of Biomedical Engineering     Open Access   (Followers: 11)
American Journal of Biomedical Research     Open Access   (Followers: 2)
American Journal of Biomedicine     Full-text available via subscription   (Followers: 6)
American Journal of Chinese Medicine, The     Hybrid Journal   (Followers: 5)
American Journal of Clinical Medicine Research     Open Access   (Followers: 6)
American Journal of Family Therapy     Hybrid Journal   (Followers: 11)
American Journal of Law & Medicine     Full-text available via subscription   (Followers: 13)
American Journal of Lifestyle Medicine     Hybrid Journal   (Followers: 5)
American Journal of Managed Care     Full-text available via subscription   (Followers: 11)
American Journal of Medical Case Reports     Open Access   (Followers: 1)
American Journal of Medical Sciences and Medicine     Open Access   (Followers: 1)
American Journal of Medicine     Hybrid Journal   (Followers: 45)
American Journal of Medicine and Medical Sciences     Open Access   (Followers: 1)
American Journal of Medicine Studies     Open Access  
American Journal of Medicine Supplements     Full-text available via subscription   (Followers: 3)
American Journal of the Medical Sciences     Hybrid Journal   (Followers: 12)
American Journal on Addictions     Hybrid Journal   (Followers: 9)
American Medical Journal     Open Access   (Followers: 4)
American medical news     Free   (Followers: 3)
American Medical Writers Association Journal     Full-text available via subscription   (Followers: 2)
Amyloid: The Journal of Protein Folding Disorders     Hybrid Journal   (Followers: 4)
Anales de la Facultad de Medicina     Open Access  
Anales de la Facultad de Medicina, Universidad de la República, Uruguay     Open Access  
Anales del Sistema Sanitario de Navarra     Open Access   (Followers: 1)
Analgesia & Resuscitation : Current Research     Hybrid Journal   (Followers: 2)
Anatomical Science International     Hybrid Journal   (Followers: 2)
Anatomical Sciences Education     Hybrid Journal   (Followers: 1)
Anatomy Research International     Open Access   (Followers: 2)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3)
Annales de Pathologie     Full-text available via subscription  
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 3)
Annals of African Medicine     Open Access   (Followers: 1)
Annals of Anatomy - Anatomischer Anzeiger     Hybrid Journal   (Followers: 2)
Annals of Bioanthropology     Open Access   (Followers: 3)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Biomedical Sciences     Full-text available via subscription   (Followers: 3)
Annals of Clinical Microbiology and Antimicrobials     Open Access   (Followers: 8)
Annals of Family Medicine     Open Access   (Followers: 13)
Annals of Fundeni Hospital     Open Access   (Followers: 1)
Annals of Ibadan Postgraduate Medicine     Open Access  
Annals of Medical and Health Sciences Research     Open Access   (Followers: 7)
Annals of Medicine     Hybrid Journal   (Followers: 11)
Annals of Medicine and Surgery     Open Access   (Followers: 5)
Annals of Microbiology     Hybrid Journal   (Followers: 10)
Annals of Nigerian Medicine     Open Access   (Followers: 1)
Annals of Saudi Medicine     Open Access  
Annals of the New York Academy of Sciences     Hybrid Journal   (Followers: 5)
Annals of The Royal College of Surgeons of England     Full-text available via subscription   (Followers: 3)
Annual Reports in Medicinal Chemistry     Full-text available via subscription   (Followers: 7)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 4)
Annual Review of Medicine     Full-text available via subscription   (Followers: 18)
Anthropological Review     Open Access   (Followers: 24)
Anthropologie et santé     Open Access   (Followers: 5)
Antibiotics     Open Access   (Followers: 9)
Antibodies     Open Access   (Followers: 2)
Antibody Technology Journal     Open Access   (Followers: 1)
Anuradhapura Medical Journal     Open Access  
Anwer Khan Modern Medical College Journal     Open Access   (Followers: 2)
Apmis     Hybrid Journal   (Followers: 1)
Apparence(s)     Open Access   (Followers: 1)
Applied Clinical Informatics     Hybrid Journal   (Followers: 2)
Applied Medical Informatics     Open Access   (Followers: 11)
Arab Journal of Nephrology and Transplantation     Open Access   (Followers: 1)
Arak Medical University Journal     Open Access  
Archive of Clinical Medicine     Open Access   (Followers: 1)
Archive of Community Health     Open Access  
Archives of Biomedical Sciences     Open Access   (Followers: 7)
Archives of Medical and Biomedical Research     Open Access   (Followers: 3)
Archives of Medical Laboratory Sciences     Open Access   (Followers: 1)
Archives of Medicine and Health Sciences     Open Access   (Followers: 3)
Archives of Trauma Research     Open Access   (Followers: 2)
Archivos de Medicina (Manizales)     Open Access  
ArgoSpine News & Journal     Hybrid Journal  
Arquivos Brasileiros de Oftalmologia     Open Access  
Arquivos de Ciências da Saúde     Open Access  
Arquivos de Medicina     Open Access  
ARS Medica Tomitana     Open Access   (Followers: 1)
Art Therapy: Journal of the American Art Therapy Association     Full-text available via subscription   (Followers: 10)
Arterial Hypertension     Open Access  
Artificial Intelligence in Medicine     Hybrid Journal   (Followers: 12)
Artificial Organs     Hybrid Journal   (Followers: 1)
Asia Pacific Family Medicine     Open Access  
Asia Pacific Journal of Clinical Nutrition     Full-text available via subscription   (Followers: 10)
Asia Pacific Journal of Clinical Trials : Nervous System Diseases     Open Access  
Asian Bioethics Review     Full-text available via subscription   (Followers: 1)
Asian Journal of Cell Biology     Open Access   (Followers: 6)
Asian Journal of Health     Open Access   (Followers: 3)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 2)
Asian Journal of Medical and Pharmaceutical Researches     Open Access   (Followers: 1)
Asian Journal of Medical Sciences     Open Access   (Followers: 1)
Asian Journal of Scientific Research     Open Access   (Followers: 1)
Asian Journal of Transfusion Science     Open Access   (Followers: 2)
Asian Medicine     Hybrid Journal   (Followers: 4)
ASPIRATOR : Journal of Vector-borne Disease Studies     Open Access  
Astrocyte     Open Access  
Atención Familiar     Open Access  
Atención Primaria     Open Access   (Followers: 1)
Audiology - Communication Research     Open Access   (Followers: 8)
Auris Nasus Larynx     Full-text available via subscription  
Australasian Medical Journal     Open Access   (Followers: 3)
Australian Coeliac     Full-text available via subscription   (Followers: 2)
Australian Family Physician     Full-text available via subscription   (Followers: 3)
Australian Journal of Medical Science     Full-text available via subscription   (Followers: 1)
Autopsy and Case Reports     Open Access  
Aviation, Space, and Environmental Medicine     Full-text available via subscription   (Followers: 9)
Avicenna     Open Access   (Followers: 2)
Avicenna Journal of Medicine     Open Access   (Followers: 1)
Bangabandhu Sheikh Mujib Medical University Journal     Open Access   (Followers: 1)
Bangladesh Journal of Anatomy     Open Access   (Followers: 1)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Medical Biochemistry     Open Access   (Followers: 3)
Bangladesh Journal of Medical Education     Open Access   (Followers: 2)
Bangladesh Journal of Medical Microbiology     Open Access   (Followers: 2)
Bangladesh Journal of Medical Physics     Open Access  
Bangladesh Journal of Medical Science     Open Access  
Bangladesh Journal of Medicine     Open Access   (Followers: 1)
Bangladesh Journal of Physiology and Pharmacology     Open Access  
Bangladesh Journal of Scientific Research     Open Access   (Followers: 1)
Bangladesh Medical Journal     Open Access  
Bangladesh Medical Journal Khulna     Open Access  
Bangladesh Medical Research Council Bulletin     Open Access  
Basal Ganglia     Hybrid Journal  
Basic Sciences of Medicine     Open Access   (Followers: 2)
BBA Clinical     Open Access  
BC Medical Journal     Free  
Benha Medical Journal     Open Access  
Bijblijven     Hybrid Journal  
Bijzijn     Hybrid Journal   (Followers: 2)
Bijzijn XL     Hybrid Journal   (Followers: 1)
Bio-Algorithms and Med-Systems     Hybrid Journal   (Followers: 1)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioengineering & Translational Medicine     Open Access  
Bioethics     Hybrid Journal   (Followers: 14)
Bioethics Research Notes     Full-text available via subscription   (Followers: 14)
Biologics in Therapy     Open Access  
Biology of Sex Differences     Open Access   (Followers: 4)
Biomarker Research     Open Access   (Followers: 2)

        1 2 3 4 5 6 7 8 | Last

Journal Cover Apmis
  [SJR: 0.855]   [H-I: 73]   [1 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0903-4641 - ISSN (Online) 1600-0463
   Published by John Wiley and Sons Homepage  [1579 journals]
  • Type of vascular invasion in association with progress of endometrial
           cancer
    • Authors: Nicole C.M. Visser; Henrica M.J. Werner, Camilla Krakstad, Karen K. Mauland, Jone Trovik, Leon F.A.G. Massuger, Iris D. Nagtegaal, Johanna M.A. Pijnenborg, Helga B. Salvesen, Johan Bulten, Ingunn M. Stefansson
      Abstract: Vascular invasion (VI) is a well-established marker for lymph node metastasis and outcome in endometrial cancer. Our study explored whether specific types of VI, defined as lymphatic (LVI) or blood vessel invasion (BVI), predict pattern of metastasis. From a prospectively collected cohort, we conducted a case–control study by selecting three groups of endometrial cancer patients (n = 183): 52 with positive lymph nodes at primary surgery, 33 with negative nodes at primary surgery and later recurrence and death from disease, and 98 with negative nodes and no recurrence. All patients underwent hysterectomy with lymphadenectomy. Immunohistochemical staining with D2-40 and CD31 antibodies was used to differentiate between BVI and LVI. By immunohistochemical staining, detection of VI increased from 24.6 to 36.1% of the cases. LVSI was significantly more often seen in patients with positive lymph nodes compared with patients with negative nodes (p = 0.001). BVI was significantly more often seen in node-negative patients with recurrence compared with node-negative patients without recurrence (p = 0.011). In multivariable analysis, BVI, age, and tumor grade were predictors separating patients with and without recurrence. Lymph node–positive patients showed more often LVI compared with lymph node–negative patients, while BVI seems to be a predictor for recurrent disease.
      PubDate: 2017-10-04T01:40:44.497974-05:
      DOI: 10.1111/apm.12774
       
  • Architectural patterns of p16 immunohistochemical expression associated
           with cancer immunity and prognosis of head and neck squamous cell
           carcinoma
    • Authors: Hyang Joo Ryu; Eun Kyung Kim, Su Jin Heo, Byoung Chul Cho, Hye Ryun Kim, Sun Och Yoon
      Abstract: We evaluated the expression patterns of p16, which is used as a surrogate marker of HPV infection in head and neck squamous cell carcinoma (HNSCC), in regard to their biological and prognostic implications. p16 expression patterns and infiltrated immune cells were analyzed through immunohistochemistry of p16, CD3, CD8, PD-1, FOXP3, and CD163 on surgically resected HNSCCs (n = 393). Patterns of p16 immunoexpression were defined as STRONG (strong, diffuse expression in cytoplasm, and nucleus in>70% of tumor cells), MARGINAL (expression restricted to tumor margins), MOSAIC (ragged, discontinued expression), NUCLEAR (expression in nuclei only), and ABSENT (no expression). The STRONG pattern was more frequent in the oropharynx, and the MARGINAL pattern was noted only in the oral cavity. MOSAIC and NUCLEAR patterns were noted at variable sites. No two patterns of p16 expression showed the same immune cell composition of CD3+ T cells, CD8+ cytotoxic T cells, PD-1+ T cells, FOXP3+ regulatory T cells, and CD163+ macrophages. In overall and disease-free survival analyses, the STRONG pattern showed the most favorable prognosis, while the NUCLEAR pattern had the worst prognosis. HNSCC anatomical sites, tumor-related immune cell components, and patient outcomes were associated with p16 expression patterns. Each architectural pattern of p16 expression may be related to different biological and prognostic phenotypes.
      PubDate: 2017-10-04T01:30:52.797242-05:
      DOI: 10.1111/apm.12744
       
  • Cancer/testis antigen SPATA19 is frequently expressed in benign prostatic
           hyperplasia and prostate cancer
    • Authors: Kah Keng Wong; Faezahtul Arbaeyah Hussain, Suet Kee Loo, José I. López
      Abstract: Spermatogenesis-associated 19 (SPATA19) is a cancer/testis antigen overexpressed in various cancers. However, its protein expression profile in malignant or non-malignant tissues remains unknown. Thus, in this study, we investigated SPATA19 protein expression patterns in a panel of non-malignant human samples and primary prostate cancer (PCa) with or without benign prostatic hyperplasia (BPH) tissues. SPATA19 was absent in all non-malignant tissues investigated (n=14) except testis and prostate tissues. In terms of malignancies, all PCa cases were positive for SPATA19 exhibiting frequency between 20 and 100% (median 85%) with 63 (52.5%) and 57 (47.5%) cases demonstrating weak/moderate and strong intensities, respectively. Thirty-nine PCa cases (32.5%) contained BPH, and all BPH glands were SPATA19 positive (frequency between 20 and 100%; median 90%) with 13 (33.3%) demonstrating strong SPATA19 expression. Higher SPATA19 expression (higher frequency, intensity, or H-score) was not associated with overall survival or disease-specific survival (DFS) in all PCa cases. However, biochemical recurrence (BR) was associated with worse DFS (p = 0.005) in this cohort of 120 patients, and cases with strong SPATA19 intensity were associated with BR (p = 0.020). In conclusion, we showed that SPATA19 protein was frequently expressed in both BPH and PCa glands, and this warrants future investigations on its pathogenic roles in the disease.
      PubDate: 2017-10-03T04:21:00.975374-05:
      DOI: 10.1111/apm.12775
       
  • Dominant high expression of wild-type HSP110 defines a poor prognostic
           subgroup of colorectal carcinomas with microsatellite instability: a
           whole-section immunohistochemical analysis
    • Authors: Hyeon Jeong Oh; Jung Ho Kim, Tae Hun Lee, Hye Eun Park, Jeong Mo Bae, Hye Seung Lee, Gyeong Hoon Kang
      Abstract: The aim of this study is to establish heat shock protein 110 (HSP110) as a prognostic biomarker of colorectal carcinomas (CRCs) with microsatellite instability-high (MSI-H) by considering the intratumoral heterogeneity of HSP110 expression. We performed whole-section immunohistochemistry (IHC) for wild-type HSP110 (HSP110wt) in 164 MSI-H CRCs. The intensity of the HSP110wt expression in tumor cells was semiquantitatively scored (0/1/2/3), and the HSP110wt expression status of each tumor was classified as low or high using the following four scoring criteria: H-score, dominant intensity score, lowest intensity score, and highest intensity score. Among the four criteria, only the dominant intensity score-based dichotomous classification of HSP110wt expression was significantly associated with a difference in disease-free survival (log-rank p = 0.035) in 164 MSI-H CRCs. The HSP110wt-low MSI-H CRCs were significantly correlated with larger deletions in the HSP110 T17 mononucleotide repeat (≥4 bp; p 
      PubDate: 2017-10-03T03:25:34.0464-05:00
      DOI: 10.1111/apm.12770
       
  • M2 polarization of monocytes in ankylosing spondylitis and relationship
           with inflammation and structural damage
    • Authors: Jinzhu Zhao; Wei Yuan, Chunsheng Tao, Peifeng Sun, Zaixing Yang, Weidong Xu
      Abstract: The aim of this study was to evaluate the polarization of peripheral blood monocytes in the patients with ankylosing spondylitis (AS) and to determine the correlations between monocyte polarization and inflammation and structural damage. A total of 120 AS patients, 50 rheumatoid arthritis (RA) patients and 100 healthy controls were enrolled in the study. M1 (CD68+CD192+) and M2 (CX3CR1+CD163+) monocytes were characterized by flow cytometry. Demographic, clinical, radiographic and laboratory data were collected and analyzed. A large increase in M2 (CX3CR1+CD163+) monocytes was observed in AS, and M2/M1 ratio was 7.18 ± 6.12, 2.54 ± 3.14 and 35.61 ± 20.04 in control, RA and AS, respectively. The M2/M1 ratio correlated with modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) (r = 0.565; p 
      PubDate: 2017-10-03T03:25:22.446541-05:
      DOI: 10.1111/apm.12757
       
  • Epidemiological characterization of a nosocomial outbreak of extended
           spectrum β-lactamase Escherichia coli ST-131 confirms the clinical value
           of core genome multilocus sequence typing
    • Authors: Hanna Woksepp; Anna Ryberg, Linda Berglind, Thomas Schön, Jan Söderman
      Abstract: Enhanced precision of epidemiological typing in clinically suspected nosocomial outbreaks is crucial. Our aim was to investigate whether single nucleotide polymorphism (SNP) analysis and core genome (cg) multilocus sequence typing (MLST) of whole genome sequencing (WGS) data would more reliably identify a nosocomial outbreak, compared to earlier molecular typing methods. Sixteen isolates from a nosocomial outbreak of ESBL E. coli ST-131 in southeastern Sweden and three control strains were subjected to WGS. Sequences were explored by SNP analysis and cgMLST. cgMLST clearly differentiated between the outbreak isolates and the control isolates (>1400 differences). All clinically identified outbreak isolates showed close clustering (≥2 allele differences), except for two isolates (>50 allele differences). These data confirmed that the isolates with>50 differing genes did not belong to the nosocomial outbreak. The number of SNPs within the outbreak was ≤7, whereas the two discrepant isolates had>700 SNPs. Two of the ESBL E. coli ST-131 isolates did not belong to the clinically identified outbreak. Our results illustrate the power of WGS in terms of resolution, which may avoid overestimation of patients belonging to outbreaks as judged from epidemiological data and previously employed molecular methods with lower discriminatory ability.
      PubDate: 2017-09-28T08:20:23.025505-05:
      DOI: 10.1111/apm.12753
       
  • Strong antimicrobial activity of xanthohumol and other derivatives from
           hops (Humulus lupulus L.) on gut anaerobic bacteria
    • Authors: Pavel Cermak; Jana Olsovska, Alexandr Mikyska, Martin Dusek, Zuzana Kadleckova, Jiri Vanicek, Otakar Nyc, Karel Sigler, Vanda Bostikova, Pavel Bostik
      Abstract: Anaerobic bacteria, such as Bacteroides fragilis or Clostridium perfringens, are part of indigenous human flora. However, Clostridium difficile represents also an important causative agent of nosocomial infectious antibiotic-associated diarrhoea. Treatment of C. difficile infection is problematic, making it imperative to search for new compounds with antimicrobial properties. Hops (Humulus lupulus L.) contain substances with antibacterial properties. We tested antimicrobial activity of purified hop constituents humulone, lupulone and xanthohumol against anaerobic bacteria. The antimicrobial activity was established against B. fragilis, C. perfringens and C. difficile strains according to standard testing protocols (CLSI, EUCAST), and the minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBC) were calculated. All C. difficile strains were toxigenic and clinically relevant, as they were isolated from patients with diarrhoea. Strongest antimicrobial effects were observed with xanthohumol showing MIC and MBC values of 15–107 μg/mL, which are close to those of conventional antibiotics in the strains of bacteria with increased resistance. Slightly higher MIC and MBC values were obtained with lupulone followed by higher values of humulone. Our study, thus, shows a potential of purified hop compounds, especially xanthohumol, as alternatives for treatment of infections caused by select anaerobic bacteria, namely nosocomial diarrhoea caused by resistant strains.
      PubDate: 2017-09-28T07:30:22.184556-05:
      DOI: 10.1111/apm.12747
       
  • Angiogenesis in Schistosoma haematobium-associated urinary bladder cancer
    • Authors: Anderson Dematei; Rúben Fernandes, Raquel Soares, Helena Alves, Joachim Richter, Monica C. Botelho
      Abstract: Schistosoma haematobium, a parasitic flatworm that infects more than 100 million people, mostly in the developing world, is the causative agent of urogenital schistosomiasis, and is associated with a high incidence of squamous cell carcinoma (SCC) of the bladder. During infection, eggs are deposited in the bladder causing an intense inflammatory reaction. Angiogenesis is defined as the formation of new blood vessels from preexisting ones and is recognized as a key event in cell proliferation and carcinogenesis and spread of malignant lesions. A growing amount of evidence points to angiogenesis playing a key role in schistosomiasis-associated bladder cancer. Thus, identifying biomarkers of this process plays an important role in the study of cancer. Here, we review recent findings on the role of angiogenesis in bladder cancer and the growth factors that induce and assist in their development, particularly SCC of the bladder associated to urogenital schistosomiasis.
      PubDate: 2017-09-28T07:25:46.791891-05:
      DOI: 10.1111/apm.12756
       
  • Metastatic mature teratoma to the neck with respiratory-type epithelium: a
           case requiring evidence of chromosome 12p overrepresentation to
           differentiate malignant and benign diagnoses
    • Authors: Miroslav Sekulic; Michelle Dolan, Paari Murugan, Faqian Li
      PubDate: 2017-09-28T07:25:41.819482-05:
      DOI: 10.1111/apm.12771
       
  • Occurrence of five distinct red cell alloantibodies in a renal transplant
           recipient: Diagnostic and therapeutic implications of minor
           histocompatibility antigens (Kidd and Duffy) for renal allograft outcome
    • Authors: Rajeswari Subramaniyan
      PubDate: 2017-09-28T07:25:26.524543-05:
      DOI: 10.1111/apm.12773
       
  • Expression of CD markers' in immune thrombocytopenic purpura: prognostic
           approaches
    • Authors: Masumeh Maleki Behzad; Ali Amin Asnafi, Kaveh Jaseb, Mohammad Ali Jalali Far, Najmaldin Saki
      Abstract: Immune Thrombocytopenic Purpura (ITP) is a common autoimmune bleeding disorder characterized by a reduction in peripheral blood platelet counts. In this disease, autoantibodies (Auto-Abs) are produced against platelet GPIIb/GPIIIa by B cells, which require interaction with T cells. In this review, the importance of B and T lymphocytes in ITP prognosis has been studied. Relevant literature was identified by a PubMed search (1990–2016) of English-language papers using the terms B and T lymphocyte, platelet, CD markers and immune thrombocytopenic purpura. T and B lymphocytes are the main immune cells in the body. Defective function causes disrupted balance of different subgroups of lymphocytes, and abnormal expression of surface markers of these cells results in self-tolerance dysfunction, as well as induction of Auto-Abs against platelet glycoproteins (PG). Given the role of B and T cells in production of autoantibodies against PG, it can be stated that the detection of changes in CD markers' expression in these cells can be a good approach for assessing prognosis in ITP patients.
      PubDate: 2017-09-28T07:25:21.856521-05:
      DOI: 10.1111/apm.12755
       
  • Effects of FCGRIIIa-158V/F polymorphism on antibody-dependent cellular
           cytotoxicity activity of adalimumab
    • Authors: Koji Kimura; Daigo Kobayashi, Saori Hatoyama, Mizuki Yamamoto, Risa Takayanagi, Yasuhiko Yamada
      Abstract: The associations between the efficacy of IgG reagents and the FCGRIIIa-158V/F polymorphism (rs396991) have been investigated. Although the genotype frequencies in healthy Japanese have been reported, those have varied, as one study reported that the proportions of V/V, V/F, and F/F were 59.1%, 38.6%, and 2.3%, respectively, while another study found that they were 4%, 44%, and 52%, respectively. However, there are no known investigations of the association between the antibody-dependent cellular cytotoxicity (ADCC) activity of adalimumab (ADA), an IgG reagent, in combination with FcγRIIIa and the polymorphism. In this study, we analyzed healthy Japanese to clarify genotype frequency using a direct sequence method. In addition, we examined the association between the ADA-mediated ADCC activity and the polymorphism. Our results showed that the frequencies of the V/V, V/F, and F/F genotypes in healthy Japanese were 9.2%, 39.8%, and 51.0%, respectively. The average activity of ADA-mediated ADCC was 25.0%, 19.0%, and 13.3% in the V/V, V/F, and F/F genotypes, respectively. Then, the ADCC activity of V/V was significantly higher than that of F/F (p < 0.05) in therapeutic concentration. The differences in therapeutic effect of ADA among individuals can be explained, in part, by ADCC activity via the FCGRIIIa-158V/F polymorphism.
      PubDate: 2017-09-15T03:35:25.132805-05:
      DOI: 10.1111/apm.12754
       
  • Acinetobacter baumannii isolated from hospital-acquired infection: biofilm
           production and drug susceptibility
    • Authors: Paweł Krzyściak; Agnieszka Chmielarczyk, Monika Pobiega, Dorota Romaniszyn, Jadwiga Wójkowska-Mach
      Abstract: Acinetobacter baumannii cause opportunistic nosocomial infections and is often multidrug resistant. It has ability to form biofilm. The possession of drug resistance mechanism and ability of biofilm formation seems to be the different way to enhancement of viability in stressful environment. In this study, we evaluate relation between these two factors. The biofilm formation was investigated in M63 medium with casein in microtiter plates, and the drug susceptibility was performed by disk diffusion methods. We found that 80–98% strains formed a biofilm. Strains showing sensitivity to amikacin and tobramycin from ICU produced more biofilm than strains showing resistance to these antibiotics. Ceftazidime-sensitive strains formed a smaller biofilm than resistant. The logistic regression shows association between drug resistance and strains originating from ICU. In case of ceftazidime, strong biofilm formation and descending from ICU reduced the likelihood of drug sensitivity. For other drugs such as aminoglycosides, fluoroquinolones, trimethoprim/sulfamethoxazole, and tetracycline, we found opposite relation (but it was not statistically significance). However, generally it seems that strong biofilm producers from ICUs are often more susceptible to antibiotics. This situation can be explained by the fact that bacteria protected in biofilm do not need mechanisms responsible for resistance of planktonic cells.
      PubDate: 2017-09-15T03:20:44.123551-05:
      DOI: 10.1111/apm.12739
       
  • Significance of histone methyltransferase SETDB1 expression in colon
           adenocarcinoma
    • Authors: Yi-Jung Ho; Yueh-Min Lin, Yen-Chi Huang, Jungshan Chang, Kun-Tu Yeh, Liang-In Lin, Zhiyuan Gong, Tsai-Yu Tzeng, Jeng-Wei Lu
      Abstract: This study investigated the clinical implications of SETDB1 (also known as KMT1E) in human colon adenocarcinoma. Expression levels of SETDB1 proteins were analyzed by immunohistochemistry staining, and tissue microarrays were used to examine expression profiles in human patients. Our results revealed that SETDB1 protein expression was significantly higher in tumor tissue than in normal tissue for the breast, colon, liver, and lung (p < 0.05). Moreover, an analysis with SurvExpress software suggested that elevated expression of SETDB1 mRNA was significantly associated with the overall survival of colon adenocarcinoma patients (p < 0.05); and additional analysis involving 90 paired samples of colon adenocarcinoma tissue and normal tissue revealed that SETDB1 protein expression was 82% higher in cancerous cells (p < 0.001). High SETDB1 expression was also found to be significantly correlated with histological grade (p = 0.005), TNM stage (p = 0.003), T-class/primary tumor (p = 0.001), and N-class/regional lymph nodes (p = 0.017); and Kaplan–Meier survival curves indicated that SETDB1 protein expression was significantly associated with poor survival. Finally, univariate analysis demonstrated that SETDB1 protein expression was related to TNM stage (p = 0.004) and SETDB1 score (p = 0.001), whereas multivariate analysis showed that the influence of SETDB1 on overall colon adenocarcinoma survival was independent from other risk factors. Taken together, our results suggest that the SETDB1 protein could serve as a clinical prognostic indicator for colon adenocarcinoma.
      PubDate: 2017-09-15T03:01:23.721598-05:
      DOI: 10.1111/apm.12745
       
  • Clinicopathological study of lip cancer: a retrospective hospital-based
           study in Taiwan
    • Authors: Hui-Wen Tseng; Huei-Han Liou, Kuo-Wang Tsai, Luo-Ping Ger, Yow-Ling Shiue
      Abstract: To evaluate the clinicopathological characteristics, high-risk lifestyle factors (HRLF: chronic exposure to sun, betel quid, alcohol, and tobacco), and prognostic factors of lip cancer. The hospital records of patients with pathologically confirmed lip squamous cell carcinoma (LSCC, n = 112) and lip basal cell carcinoma (LBCC, n = 21) were reviewed. Differences in clinicopathological characteristics between LSCC and LBCC, upper and lower lip, and status of second primary tumors were compared by chi-square test and logistic regression. The prognostic factors for LSCC were analyzed by Cox regression. Compared with LBCC patients, LSCC patients were men-predominant (p 
      PubDate: 2017-09-15T02:40:31.361107-05:
      DOI: 10.1111/apm.12751
       
  • Loss of regulatory characteristics in CD4+CD25+/hi T cells induced by
           impaired transforming growth factor beta secretion in pneumoconiosis
    • Authors: Lu-Qin Bian; Ling Mao, Ying Bi, Shao-Wei Zhou, Zi-Dan Chen, Jun Wen, Jin Shi, Ling Wang
      Abstract: Pneumoconiosis is caused by the accumulation of airborne dust in the lung, which stimulates a progressive inflammatory response that ultimately results in lung fibrosis and respiratory failure. It is possible that regulatory cells in the immune system could function to suppress inflammation and possibly slow or reverse disease progression. However, results in this study suggest that in pneumoconiosis patients, the regulatory T cells (Tregs) and B cells are functionally impaired. First, we found that pneumoconiosis patients presented an upregulation of CD4+CD25+ T cells compared to controls, whereas the CD4+CD25+ and CD4+CD25hi T cells were enriched with Th1- and Th17-like cells but not Foxp3-expressing Treg cells and evidenced by significantly higher T-bet, interferon (IFN)-γ, and interleukin (IL)-17 expression but lower Foxp3 and transforming growth factor (TGF)-β expression. Regarding the CD4+CD25hi T-cell subset, the frequency of this cell type in pneumoconiosis patients was significantly reduced compared to controls, together with a reduction in Foxp3 and TGF-β and an enrichment in T-bet, RORγt, IFN-γ, and IL-17. This skewing toward Th1 and Th17 types of inflammation could be driven by monocytes and B cells, since after depleting CD14+ monocytes and CD19+ B cells, the levels of IFN-γ and IL-17 were significantly decreased. Whole peripheral blood mononuclear cells and isolated monocytes and B cells in pneumoconiosis patients also presented reduced capacity of TGF-β secretion. Furthermore, monocytes and B cells from pneumoconiosis patients presented reduced capacity in inducing Foxp3 upregulation, a function that could be rescued by exogenous TGF-β. Together, these data indicated a potential pathway for the progression of pneumoconiosis through a loss of Foxp3+ Treg cells associated with impaired TGF-β secretion.
      PubDate: 2017-09-15T02:06:47.034167-05:
      DOI: 10.1111/apm.12748
       
  • The updated grading system of prostate carcinoma: an inter-observer
           agreement study among general pathologists in an academic practice
    • Authors: Areej M. Al Nemer; Tarek Elsharkawy, Mohamed Elshawarby, Dalal Al-Tamimi, Haitham Kussaibi, Ayesha Ahmed
      Abstract: In 2016, the grading criteria for Gleason scoring (GS) have been updated in the WHO classification of tumors of the prostate, and a new set of grade groups (GG) was introduced. As the inter-observer discordance is a well-known concern in Gleason grading before the update and no reproducibility study testing the grade groups exists, we planned to evaluate the inter-observer agreement of the most updated grading system. Four pathologists assessed 126 cores of prostatic carcinoma, and Kappa (k) test was calculated. The agreements for both GS and GG were substantial (k = 0.753 and 0.752; respectively). Discerning GG 2 from 3 also attained reasonable outcome (k = 0.675). Based on our results, the updated grading system seems to be reproducible, with satisfactory inter-observer concordance rate.
      PubDate: 2017-09-15T02:01:37.295538-05:
      DOI: 10.1111/apm.12741
       
  • Biofilm formation of beta-hemolytic group G Streptococcus dysgalactiae
           
    • Authors: Jui-Shan Ma; Sin-Yu Chen, Hsueh-Hsia Lo
      Abstract: Biofilm formation has been well known as a determinant of bacterial virulence. Group G Streptococcus dysgalactiae subspecies equisimilis (SDSE), a relevant pathogen with increasing medical importance, was evaluated for the biofilm-forming potential. Microtiter plate assay was used to assess the most feasible medium for group G SDSE to form a biofilm. Among 246 SDSE isolates examined, 46.7%, 43.5%, 33.3%, and 26.4% of isolates showed moderate or strong biofilm-forming abilities using tryptic soy broth (TSB), brain heart infusion broth (BHI), Todd-Hewitt broth (THB), and C medium with 30 mM glucose (CMG), respectively. The addition of glucose significantly increased the biofilm-forming ability of group G SDSE. FCT (fibronectin–collagen–T-antigen) typing of SDSE was first undertaken and 11 FCT types were found. Positive associations of stG10.0 or negative associations of stG245.0, stG840.0, and stG6.1 with biofilm-forming ability of SDSE were, respectively, found. This was the first investigation demonstrating biofilm-forming potential in clinical group G SDSE isolates; also, some significant associations of biofilm-forming ability with certain emm types were presented.
      PubDate: 2017-09-08T09:15:21.158997-05:
      DOI: 10.1111/apm.12746
       
  • Low angiomotin-p130 with concomitant high Yes-associated protein 1
           expression is associated with adverse prognosis of advanced gastric cancer
           
    • Authors: Soon Auck Hong; Myoung Won Son, Junhun Cho, Si-hyong Jang, Hyun Ju Lee, Ji-Hye Lee, Hyun Deuk Cho, Mee-Hye Oh, Moon Soo Lee
      Abstract: Angiomotin (AMOT) promotes angiogenesis and plays a role in neovascularization during tumorigenesis. Recently, the AMOT isoform, AMOT-p130, was shown to exert a regulatory effect on Yes-associated protein 1 (YAP1), a major downstream effector of the Hippo pathway. The specific roles of AMOT-p130 and YAP1 in advanced gastric cancer (AGC) are yet to be established. In this study, a total of 166 patients with AGC were enrolled, and AMOT-p130 and YAP1 levels were analyzed by immunohistochemistry using tissue microarrays. Low AMOT-p130 together with high YAP1 expression (n = 30, 18.1%) was associated with high T stage (p = 0.042), high TNM stage (p = 0.025), and venous invasion (p = 0.048). A Kaplan–Meier survival analysis with log-rank test revealed a significant correlation with decreased AMOT-p130 coupled with high nuclear YAP1 expression with shorter overall survival (p = 0.0045) and disease-free survival (p = 0.0028). Furthermore, multivariate analyses showed that the low AMOT-p130/high YAP1 expression profile was an independent prognostic factor for disease-free survival (p = 0.008, HR = 1.874, CI, 1.177–2.986) and overall survival (p = 0.012, HR = 1.903, CI, 1.152–3.143). Our findings collectively demonstrate that low AMOT-p130 combined with high YAP1 expression is correlated with an unfavorable AGC prognosis.
      PubDate: 2017-09-08T08:57:15.051246-05:
      DOI: 10.1111/apm.12750
       
  • A role of human beta defensin-1 in predicting prostatic adenocarcinoma in
           cases of false-negative biopsy
    • Authors: Soon Auck Hong; Ki Hong Kim, Tae Jin Lee, Eon Sub Park, Mi Kyung Kim, Soon Chul Myung
      Abstract: The purpose of this study was to clarify the role of human beta defensin-1 (hBD-1) in predicting PAC in morphologically normal prostate glands. In total, 25 patients with a negative initial biopsy for PAC and diagnosed as PAC positive in subsequent biopsies performed within 1 year of the initial biopsy were included. As a control group, 22 patients negative for PAC in at least three consecutive histologic examinations were selected. Expression of hBD-1 was analyzed separately via immunohistochemistry in paired cores of non-neoplastic gland and PAC in the false-negative group and control group. Loss of hBD-1 expression was observed in 95.6% and 90.0% PAC cases with Gleason Patterns 3 and 4 in repeat biopsies, respectively. hBD-1 loss of basal cells in 40 (85.1%) previous non-neoplastic biopsy cores in the false-negative group was observed, in contrast to preserved basal cell expression of hBD-1 in 64 (72.7%) biopsy cores in the control group (p = 0.001). Multivariate logistic regression analysis showed that hBD-1 basal cell loss (≥20% of prostatic glands in total cores) is an independent factor for predicting PAC (odds ratio: 4.739, confidence interval: 1.093–20.554, p = 0.038). hBD-1 loss of basal cells is a useful indicator to identify extremely high-risk patients with initially negative biopsy.
      PubDate: 2017-09-08T08:55:32.688132-05:
      DOI: 10.1111/apm.12749
       
  • CCL2 recruits T cells into the brain in a CCR2-independent manner
    • Authors: Oriane Cédile; Agnieszka Wlodarczyk, Trevor Owens
      Abstract: CCL2 is a chemokine that can be induced during neuroinflammation to recruit immune cells, but its role in the central nervous system (CNS) is unclear. Our aim was to better understand its role. We induced CCL2 in CNS of naive CCL2-deficient mice using intrathecally administered replication-defective adenovirus and examined cell infiltration by flow cytometry. CCL2 expression induced pronounced and unexpected recruitment of regulatory and IFNγ-producing T cells to CNS from blood, possibly related to defective egress of monocytes from CCL2-deficient bone marrow. Infiltration also occurred in mice lacking CCR2, a receptor for CCL2. Expression of another receptor for CCL2, CCR4, and CXCR3, a receptor for CXCL10, which was also induced, were both increased in CCL2-treated CNS. CCR4 was expressed by neurons and astrocytes as well as CD4 T cells, and CXCR3 was expressed by CD4 and CD8 T cells. Chemokine-recruited T cells did not lead to CNS pathology. Our findings show a role for CCL2 in recruitment of CD4 T cells to the CNS and show that redundancy among chemokine receptors ensures optimal response.
      PubDate: 2017-08-24T06:20:46.341069-05:
      DOI: 10.1111/apm.12740
       
  • Comparisons of neutrophil-, monocyte-, eosinophil-, and basophil-
           lymphocyte ratios among various systemic autoimmune rheumatic diseases
    • Authors: Zaixing Yang; Zhiyu Zhang, Feng Lin, Yingpeng Ren, Donghong Liu, Renqian Zhong, Yan Liang
      Abstract: This study was aimed to evaluate levels of neutrophil- (NLR), monocyte- (MLR), eosinophil- (ELR), and basophil-lymphocyte ratio (BLR) and their association with inflammatory markers in systemic autoimmune rheumatic diseases (SARDs). A total of 1139 SARD patients and 170 healthy individuals were enrolled. Clinical and laboratory data were extracted. NLR and MLR were significantly increased, but BLR decreased in most SARD patients (p 
      PubDate: 2017-08-02T06:55:29.694884-05:
      DOI: 10.1111/apm.12722
       
  • Enhanced molecular typing of Treponema pallidum identified a new tp0548
           Gene type in Shandong, China
    • Authors: Zhen Li; Chuan Wang, Hailu Xiao, Wei Zhao, Zhongwei Li, Rongtao Zheng, Jianling Hou, Na Huang, Hongqing Tian
      PubDate: 2017-08-02T06:40:22.995063-05:
      DOI: 10.1111/apm.12724
       
  • The expression profile and prognostic value of APE/Ref-1 and NPM1 in
           high-grade serous ovarian adenocarcinoma
    • Authors: Xiaomei Fan; Lixuan Wen, Yuehong Li, Lei Lou, Weina Liu, Jun Zhang
      Abstract: To analyze the expression trends and clinical significance of Apurinic/Apyrimidinic Endodeoxyribonuclease 1 (APE1/Ref-1) and Nucleophosmin (NPM1) proteins in high-grade serous ovarian adenocarcinoma (HGSC). The expressions of APE1/Ref-1 and NPM1 proteins in 94 patients with HGSC were determined using the immunohistochemical (IHC) method, and their relationships with clinicopathological features were analyzed by the χ2 test or Fisher's exact test. The follow-up data, Cox proportional hazards univariate and multivariate survival analyses were integrated to evaluate the prognostic factors affecting patients with HGSC. In the normal fallopian tubes, APE1/Ref-1 and NPM1 protein were mainly distributed in the nuclear. The HGSC experienced changes in the cellular localization of APE1/Ref-1 and NPM1 protein expressions, which were abnormally expressed in the cytoplasm. The rates of abnormal cytoplasmic expression of APE1/Ref-1 and NPM1 proteins in 94 patients with HGSC were 69.1% and 73.4%, respectively, which were significantly higher than the normal fallopian tube tissues (p < 0.05). The abnormal cytoplasmic APE1/Ref-1 and NPM1 are significantly correlated with the lymph node metastasis, chemosensitivity, FIGO staging, and prognosis. The COX multivariate survival analysis showed that the abnormal expression of APE1/Ref-1 protein, FIGO staging, and lymph node metastasis are independent prognostic factors. Collectively, the abnormal cytoplasmic APE1/Ref-1 and NPM1 proteins are associated with the oncogenic progression and chemoresistance of HGSC, and predict a poor prognosis.
      PubDate: 2017-08-02T06:30:32.264472-05:
      DOI: 10.1111/apm.12733
       
  • Mycoplasma genitalium, an agent of reemerging sexually transmitted
           infections
    • Authors: Sophie Edouard; Hervé Tissot-Dupont, Grégory Dubourg, Annick Bernard, Pierre-Edouard Fournier, Isabelle Ravaux, Andreas Stein, Didier Raoult
      Abstract: M. genitalium is a reemerging microorganism, responsible for sexually transmissible infections (STIs), with prevalence which varies depending on the country and population group studied. We report here M. genitalium prevalence among the specimens received for STI diagnosis in our routine microbiological laboratory in the university hospital in Marseille, France. We tested 4 624 samples from 3 793 patients using qPCR for M. genitalium, C. trachomatis, N. gonorrheae, T. pallidum. Of these samples, 528 (13.6%) patients were tested positive for at least one pathogen and 126 (3.3%) were positive for M. genitalium. M. genitalium is the second most prevalent micro-organism detected in women after C. trachomatis (10.4%) and the third most prevalent in men after C. trachomatis (5.1%) and N. gonorrhoeae (4.4%). We observed no significant differences between the prevalence of M. genitalium in vaginal, urethral and urine specimens (p = 0.9). Prevalence of M. genitalium is significantly higher in patients aged between 10–30 years (4.1%) compared to those aged between 30 and 50 years (2.7%) (p = 0.02, RR = 1.54 [1.06–2.24]) and patients over 50 years of age (1.1%) (p = 0.003, RR= 3.98 [1.47–10.8]). M. genitalium is a common agent of STI, therefore we suggest that this micro-organism should be systematically tested during chronic, recurrent, or antibiotic resistant genital infections and in populations at high-risk of STIs.
      PubDate: 2017-08-01T03:26:56.103635-05:
      DOI: 10.1111/apm.12731
       
  • No associations established between single nucleotide polymorphisms in
           human Toll-like receptor 2 and Toll-interacting protein and Staphylococcus
           aureus bloodstream infections
    • Authors: Tom Eirik Smeland; Fredrik Müller, Anita Blomfeldt, Knut Stavem, Hege Vangstein Aamot
      Abstract: Staphylococcus aureus bloodstream infections (SABSI) are associated with high morbidity and mortality. The Toll-like receptor 2 (TLR2) and Toll-interacting protein (TOLLIP) are important in recognition and regulation of human innate immunity response to S. aureus. Single nucleotide polymorphisms (SNPs) in the TLR2 and TOLLIP encoding genes have been associated with disease, including BSI. The aim of this study was to examine potential associations between a selection of SNPs in the genes encoding TLR2 and TOLLIP, and predisposition, severity, and outcome of SABSI. All patients ≥18 years of age with at least one S. aureus positive blood culture collected from March 2011 through February 2014 at Akershus University Hospital, Lørenskog, Norway, were considered for inclusion. Patients attending elective orthopaedic surgery (total hip and knee replacements, lumbar surgery) served as a control group. The TLR2 Arg753Gln, TLR2 Pro631His, TOLLIP rs5743942, and rs5743867 polymorphisms were analysed using TaqMan SNP Genotyping Assays. A total of 209 SABSI patients and 295 controls were included. The TLR2 Arg753Gln and TLR2 Pro631His polymorphisms were infrequent with no homozygotes and
      PubDate: 2017-07-24T02:25:18.306074-05:
      DOI: 10.1111/apm.12734
       
  • Testing for high-risk HPV in cervical and tonsillar paraffin-embedded
           tissue using a cartridge-based assay
    • Authors: Elina Virtanen; Pekka Laurila, Jaana Hagström, Pekka Nieminen, Eeva Auvinen
      Abstract: This study evaluates the suitability of Xpert HPV (Cepheid, Sunnyvale, CA, USA) test for cervical and tonsillar formalin-fixed paraffin-embedded (FFPE) tissue samples as compared to the tests currently used in diagnostics. Cervical biopsies and liquid cytology (LC) samples were collected from 48 women attending colposcopy. Biopsies were processed for histology and tested for hrHPV using Xpert HPV. LC samples were tested using Xpert and Hybrid Capture 2 (HC2; Qiagen, Hilden, Germany) tests. Also 29 archived tonsillar carcinoma samples were tested using Xpert, and the results were compared with histology and immunohistochemical p16INK4a (p16) staining. Among valid cervical LC samples 46.8% were hrHPV positive using Xpert test and 55.3% with HC2. The sensitivity of Xpert was 84.6% as compared to HC2, and overall test concordance was 91.5%. Test concordance between valid Xpert results from biopsies and LC samples was 84.6%. Among valid tonsillar samples 70.4% were hrHPV positive, and concordance of 96.3% was found between Xpert and p16 staining. To conclude, Xpert HPV test cartridge provides a convenient platform to test individual samples, including FFPE samples. Further studies are needed to establish whether test sensitivity is sufficient to reliably differentiate between hrHPV positive and hrHPV negative head and neck carcinomas.
      PubDate: 2017-07-24T01:30:23.360573-05:
      DOI: 10.1111/apm.12727
       
  • BMP-7 ameliorates cobalt alloy particle-induced inflammation by
           suppressing Th17 responses
    • Authors: Fengrong Chen; Ruisong Chen, Haoyuan Liu, Rupeng Sun, Jianming Huang, Zheyuan Huang, Guojian Jian
      Abstract: Metal wear debris has been shown to activate an aseptic osteolytic process that causes failure in total joint arthroplasty (TJA). This osteolysis is characterized by a proinflammatory, self-propagating immune response involving primarily macrophages, dendritic cells, and activated osteoclasts, as well as T cells and B cells. The human bone morphogenic protein (BMP)-7, on the other hand, was shown to promote osteoblast survival, and reversed the downregulation of anabolic Smad proteins and Runx2 following cobalt injury. Therefore, we investigated the effect and mechanism of BMP-7 on the proinflammatory immune responses in osteoarthritis patients with previous TJA. Cobalt-treated monocytes/macrophages presented significantly elevated levels of interleukin 6 (IL-6) and tumor necrosis factor (TNF), both of which were suppressed by the addition of exogenous BMP-7. In patients with TJA, the serum BMP-7 level was inversely associated with the level of IL-6 and TNF secreted by monocytes/macrophages. Cobalt-treated monocytes/macrophages effectively supported Th17 inflammation, by an IL-6-dependent but not TNF-dependent mechanism. BMP-7, however, significantly suppressed cobalt-induced Th17 inflammation. In patients with TJA, the risk of osteolysis development was positively associated with the frequency of Th17 cells and negatively associated with the level of BMP-7. Together, these results demonstrated that BMP-7 could serve as a therapeutic agent in treating patients with metal wear debris-induced inflammation.
      PubDate: 2017-07-24T01:21:07.925308-05:
      DOI: 10.1111/apm.12730
       
  • Tim-1+ B cells suppress T cell interferon-gamma production and promote
           Foxp3 expression, but have impaired regulatory function in coronary artery
           disease
    • Authors: Xiao-Long Gu; Huan He, Lin Lin, Guo-Xin Luo, Yan-Fei Wen, Ding-Cheng Xiang, Jian Qiu
      Abstract: Atherosclerosis and its associated coronary artery disease (CAD) represent another chronic low-grade inflammatory disorder. Regulatory B cells (Bregs) possess essential functions in maintaining peripheral tolerance and inhibiting pathogenic inflammation through IL-10. Here, we investigated one subset of Bregs, Tim-1+ B cell, and its role in atherosclerosis and CAD patients. In healthy individuals, IL-10-producing B cells were predominantly found in the Tim-1+ B cells. Upon stimulation of the B cell receptor (BCR) and Toll-like receptor 9 (TLR-9) by anti-BCR antibodies and CpG, respectively, the Tim-1+ B cells could further upregulate IL-10 expression. In contrast, the Tim-1+ B cells were present at normal frequency in CAD patients, but showed impaired capacity to upregulate IL-10 with or without BCR + CpG stimulation. The stimulated Tim-1+ B cells from healthy individuals also suppressed expression of interferon gamma (IFN-γ), an atherogenic cytokine in T cells, in an IL-10-dependent fashion, and strongly promoted the expression of Foxp3 in naive CD4+CD45RO− T cells. In contrast, the Tim-1+ B cells from CAD patients were unable to suppress IFN-γ secretion, and only minimally increased the expression of Foxp3 in naive CD4+CD45RO− T cells. Despite this, the frequency of Tim-1+ B cells in the atherosclerotic lesions from CAD patients was inversely correlated with the frequency of IFN-γ-expressing T cells. Together, these results demonstrated that CAD patients presented an inflammatory disorder in regulatory B cells, which could be used as a therapeutic target.
      PubDate: 2017-07-24T01:00:25.166733-05:
      DOI: 10.1111/apm.12729
       
  • Molecular characterization of nasal methicillin resistant Staphylococcus
           aureus isolates from workers of an automaker company in southeast Iran
    • Authors: Mohammad Hossein Sobhanipoor; Roya Ahmadrajabi, Afsaneh Karmostaji, Fereshteh Saffari
      Abstract: Colonization of methicillin resistant Staphylococccus aureus (MRSA) can occur more commonly in healthy people who live in close together or are in close physical contact with each other. Having knowledge about the molecular characteristics of these strains provides considerable discernment into the epidemiology of this important microorganism. A total of 806 nasal swabs were collected from healthy workers of an automaker company in the southeast of Iran and were analyzed to detect MRSA isolates. Multilocus sequence typing (MLST), spa typing, and detection of staphylococcal cassette chromosome mec (SCCmec) were performed. The presence of genes encoding Panton-Valentine Leukocidin (PVL) and Arginine Catabolic Mobile Element (ACME) were also investigated. Carriage rate of S. aureus was 20%. Among 10 identified MRSA, no acme was found while high prevalence of pvl (60%) was of great concern. Seven different spa types including five new ones were identified. The most frequent sequence type was the novel one; ST 3373 (n = 3), followed by each of ST22, ST88, ST859 (n = 2) and ST1955 (n = 1). MRSA isolates were clustered into two main clonal complexes; CC22 (n = 6) and CC88 (n = 4). Low genetic diversity with the dominance of CC22, SCCmecIV was found. Distribution of previously found hospital-associated MRSA was demonstrated among our isolates.
      PubDate: 2017-07-24T00:50:19.245313-05:
      DOI: 10.1111/apm.12732
       
  • Regulatory T cell subsets in peripheral blood of celiac disease patients
           and TLR2 expression: correlation with oxidative stress
    • Authors: Sanjay Kumar; Sadhna Lal, Archana Bhatnagar
      Abstract: The study was carried out to study expression of Toll like receptors 2 (TLR2), natural/inducible Treg and Interferon-γ alongside oxidative stress and understand their significance in pediatric samples. Influence of oxidative stress on Celiac Disease was analysed by evaluating lipid peroxidation, reduced glutathione, Glutathione peroxidase, etc. A comparison was performed among CD patients, CD patients on gluten free diet (GFD), and healthy controls. Peripheral nTregs exhibited a similar pattern of reduced numbers in CD and GFD cases when compared to healthy controls. On the other hand, inducible Tregs were much lower in GFD patients as compared to CD patients. Expression of TLR2 on iTregs was elevated in CD and GFD, however, expression on nTregs was unaltered in all the three groups. The inflammatory cytokine IFN-γ positive Treg cells were found to be elevated in CD as compared to control group. Oxidative stress was elevated in CD as compared to healthy controls while that in GFD samples was lower in comparison to CD. The levels of LPO, activities of enzymes SOD and Catalase were higher in CD and GFD samples when compared to controls. However, enzyme Glutathione peroxidase and reduced glutathione levels declined in both CD and GFD groups as compared to controls. This report highlights the effect of elevated oxidative stress in CD on reduced traffic of iTregs toward periphery. A strong correlation was observed between the cytokine IFN-γ and TLR2 expression in movement of iTregs in CD patients.
      PubDate: 2017-07-24T00:20:33.765895-05:
      DOI: 10.1111/apm.12735
       
  • NUT carcinoma presenting in the palate – a case report
    • Authors: Libana Raffoul Bjornstrup; Jesper Reibel, Katalin Kiss, Morten Schioedt
      Abstract: NUT carcinomas (NC) are rare and aggressive tumours characterized by chromosomal rearrangements of the gene encoding for nuclear protein of the testis (NUT) located on chromosome 15q14. This article presents a case of a 60-year-old woman diagnosed with NC presenting as a fast growing primary tumour in the right palate. Further evaluation revealed a tumour mass in the lungs and widespread metastases. A review of the literature did not reveal earlier cases presenting in the palate. In order to improve early diagnosis it is suggested to perform immunohistochemical testing for NUT in all poorly differentiated carcinomas without glandular differentiation arising in the chest, and head and neck (Clin Cancer Res, 18, 2012, 5773).
      PubDate: 2017-05-25T05:00:32.194266-05:
      DOI: 10.1111/apm.12710
       
  • Issue Information
    • Pages: 855 - 856
      PubDate: 2017-09-20T02:21:48.112752-05:
      DOI: 10.1111/apm.12619
       
  • Hypogammaglobulinemia in children: a warning sign to look deeply'
    • Authors: Karina Mescouto Melo; Maria Isabel Moraes-Pinto, Luís E. C. Andrade, Reinaldo Salomão, Milena K. C. Brunialti, Vanessa S. Ferreira, Beatriz T. Costa-Carvalho
      Pages: 902 - 909
      Abstract: This study investigated phenotypic and functional characteristics of lymphocytes in children with common variable immunodeficiency (CVID) and unclassified hypogammaglobulinemia (UH), as well as B-cell subsets in non-consanguineous parents. Blood samples of 30 children, CVID (n = 9), UH (n = 9), healthy donors HD (n = 12), and 19 adults (parents and controls) were labeled by a combination of surface markers to identify CD4, CD8 T-cell and B-cell subpopulations. T-cell cytokine production in children was analyzed in vitro after stimulation with phytohemagglutinin (PHA) and tetanus toxoid. We observed low percentages of switched memory B cells in children with CVID, increase in total CD4+ T-cell counts, and high percentages of transitional B cells only in UH group. Analysis of T-cell immunity showed that CVID children had decreased percentages of CD8+ IFN-γ-producing cells after stimulation with PHA and tetanus toxoid. Parent of children with CVID had low percentages of naive B cell and increased percentages of memory B cells in comparison with controls. These results suggest that (i) early combined immune defect in children with CVID and (ii) a possible familial B-cell disturbance in pediatric CVID.
      PubDate: 2017-09-20T02:21:51.144316-05:
      DOI: 10.1111/apm.12738
       
  • The 16S rRNA gene-based PCR method used for the detection of segmented
           filamentous bacteria in the intestinal microbiota generates false-positive
           results
    • Authors: Forough L. Nowrouzian; Liselott Svensson Stadler, Ingegerd Adlerberth, Agnes E. Wold
      Pages: 940 - 942
      PubDate: 2017-09-20T02:21:49.183622-05:
      DOI: 10.1111/apm.12743
       
 
 
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