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  Subjects -> MEDICAL SCIENCES (Total: 7328 journals)
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MEDICAL SCIENCES (1833 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: 40)
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: 7)
Advanced Health Care Technologies     Open Access   (Followers: 4)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 7)
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: 6)
Advances in Medicine     Open Access   (Followers: 2)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 5)
Advances in Molecular Oncology     Open Access   (Followers: 2)
Advances in Molecular Toxicology     Full-text available via subscription   (Followers: 9)
Advances in Parkinson's Disease     Open Access  
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: 6)
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: 2)
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   (Followers: 1)
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: 12)
American Journal of Biomedical Research     Open Access   (Followers: 2)
American Journal of Biomedicine     Full-text available via subscription   (Followers: 7)
American Journal of Chinese Medicine, The     Hybrid Journal   (Followers: 5)
American Journal of Clinical Medicine Research     Open Access   (Followers: 5)
American Journal of Family Therapy     Hybrid Journal   (Followers: 11)
American Journal of Law & Medicine     Full-text available via subscription   (Followers: 12)
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: 2)
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: 10)
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: 3)
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: 4)
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: 9)
Annals of Family Medicine     Open Access   (Followers: 12)
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: 12)
Annals of Medicine and Surgery     Open Access   (Followers: 7)
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: 17)
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 Clinical Research, Clinical Trials and Regulatory Affairs     Hybrid Journal  
Applied Medical Informatics     Open Access   (Followers: 10)
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 : Revista de Ciencias Médicas     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: 9)
Asia Pacific Journal of Clinical Trials : Nervous System Diseases     Open Access  
Asian Bioethics Review     Full-text available via subscription   (Followers: 2)
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: 2)
Asian Journal of Transfusion Science     Open Access   (Followers: 2)
Asian Medicine     Hybrid Journal   (Followers: 4)
Asian Pacific Journal of Cancer Prevention     Open Access  
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  
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: 10)
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: 3)
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: 2)
Bangladesh Medical Journal     Open Access  
Bangladesh Medical Journal Khulna     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)
BioDiscovery     Open Access   (Followers: 2)
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  

        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  [1592 journals]
  • Paratesticular seminoma: echographic features and histological diagnosis
           with review of the literature
    • Authors: Andrea Palicelli; Pierluigi Neri, Giansilvio Marchioro, Paolo De Angelis, Gianmarco Bondonno, Antonio Ramponi
      Abstract: Primary extratesticular seminomas exceptionally occur in the epididymis or in the paratesticular region/spermatic cord. Some old papers included poor histological description or insufficient photographic documentation, reducing the number of faithful cases: an up-to-date systematic review is lacking. We report the 4th primary seminoma of the paratesticular region/spermatic cord in a 35-year-old man, including the first echographic description. We provide review of the literature and etiopathogenetic discussion. Ultrasound examination showed a right paratesticular, solid, heterogeneous mass (iso-hypoechoic with hyperechoic striae; peri- and intra-lesional vascular signals) with no testicular involvement: the paratesticular origin was confirmed by pathological examination. Despite careful gross examination and extensive sampling, the 6.5-cm extratesticular tumor revealed only one microscopic focus with minimal invasion (
      PubDate: 2018-02-07T07:16:35.608492-05:
      DOI: 10.1111/apm.12806
       
  • Extracellular proteases of Staphylococcus epidermidis: roles as virulence
           factors and their participation in biofilm
    • Authors: Sergio Martínez-García; Sandra Rodríguez-Martínez, Mario E. Cancino-Diaz, Juan C. Cancino-Diaz
      Abstract: Staphylococci produce a large number of extracellular proteases, some of which are considered as potential virulence factors. Staphylococcus epidermidis is a causative agent of nosocomial infections in medical devices by the formation of biofilms. It has been proposed that proteases contribute to the different stages of biofilm formation. S. epidermidis secretes a small number of extracellular proteases, such as serine protease Esp, cysteine protease EcpA, and metalloprotease SepA that have a relatively low substrate specificity. Recent findings indicate a significant contribution of extracellular proteases in biofilm formation through the proteolytic inactivation of adhesion molecules. The objective of this work is to provide an overview of the current knowledge of S. epidermidis’ extracellular proteases during pathogenicity, especially in the different stages of biofilm formation.
      PubDate: 2018-02-05T00:55:30.521368-05:
      DOI: 10.1111/apm.12805
       
  • Urothelial tumors with villous morphology: Histomorphology and role of
           immunohistochemistry in diagnosis
    • Authors: Suvradeep Mitra; Debajyoti Chatterjee, Ashim Das, Kirti Gupta, Bishan D. Radotra, Arup K. Mandal
      Abstract: Villous adenoma and urothelial carcinoma with villoglandular differentiation (UCVGD) are rare urothelial tumours showing villous morphology, the former being a preneoplastic entity and the latter being a malignant one. The detailed immunohistochemistry of these entities is previously not described in the literature. Moreover, a limited biopsy sample of UCVGD or a villous adenoma with or without adenocarcinoma may be difficult to distinguish on the basis of the histomorphology alone. An immunohistochemical panel comprising of GATA3, p63, β-catenin, CK7 and CK20 was performed on five cases of UCVGD and three cases of villous adenoma with the aim of studying the expression of the proteins thereby aiding in the diagnosis of these entities in a limited surgical pathology specimen. The mean age of UCVGD was 66.8 years and all the patients were male. All the cases of UCVGD were associated with high grade papillary urothelial carcinoma with lamina propria invasion. The immunohistochemical panel showed strong nuclear GATA3 expression in the urothelial component of UCVGD. Interestingly, the high grade and the low grade villoglandular components of UCVGD also expressed GATA3 (nuclear) with a progressive loss of expression from the high grade to the low grade component. The villous adenomas showed negativity or aberrant cytoplasmic positivity for GATA3. The β-catenin showed a gradual loss of membranous expression from villous adenoma to low grade and high grade villoglandular components of UCVGD with a patchy membranous expression in the urothelial component of the UCVGD. p63 showed strong nuclear positivity in the urothelial component and uniform negativity in the villous adenoma and villoglandular component of UCVGD irrespective of its grade, thereby distinguishing the villoglandular component from the urothelial component. The urothelial component of UCVGD showed strong membranous CK7 expression and was higher than the CK20 expression in the urothelial component. In contrast, CK20 expression was higher in villous adenoma as compared to CK7. There was no difference in the expression of CK7 and CK20 in the villoglandular components and low grade and high grade villoglandular areas. The above-mentioned immunohistochemical pattern may help to distinguish the UCVGD from the villous adenoma.
      PubDate: 2018-02-04T23:06:07.96664-05:0
      DOI: 10.1111/apm.12799
       
  • Serum intestinal fatty acid–binding protein in the noninvasive
           diagnosis of celiac disease
    • Authors: Irene B. Oldenburger; Victorien M. Wolters, Tineke Kardol-Hoefnagel, Roderick H. J. Houwen, Henny G. Otten
      Abstract: Current diagnostic guidelines for celiac disease (CD) in pediatric patients require a duodenal biopsy if the IgA anti-tissue transglutaminase (tTG) is below 10x the upper limit of normal (ULN). Additional markers may enable a noninvasive diagnosis in this group. Serum intestinal-fatty acid-binding protein (I-FABP), a marker for intestinal epithelial damage, could be useful in this respect. A total of 95 children with a clinical suspicion of CD and tTG 1-10x ULN were investigated. All had a duodenal biopsy and analysis of serum I-FABP. A control group of 161 children with familial short stature and normal tTG was included. I-FABP levels in the 71 patients with tTG 1-10x ULN and biopsy-proven CD (median 725 pg/mL) were not significantly different (p = 0.13) from the levels in the 24 patients with a tTG 1-10x ULN but a normal biopsy (median 497 pg/mL). However, when combining tTG and I-FABP levels, 11/24 patients could have been diagnosed noninvasively if tTG is ≥ 50 U/mL and I-FABP ≥880 pg/mL or in 12/19 patients if tTG is ≥ 60 U/mL and I-FABP ≥ 620 pg/mL. Therefore, addition of I-FABP to the diagnostic procedure of CD may provide a noninvasive diagnosis in patients with a tTG ≥ 50 U/mL.
      PubDate: 2018-01-31T00:21:52.379139-05:
      DOI: 10.1111/apm.12800
       
  • Deregulation of microRNA-155 and its transcription factor NF-kB by
           polychlorinated biphenyls during viral infections
    • Authors: Courtney A. Waugh; Augustine Arukwe, Veerle L. B. Jaspers
      Abstract: Polychlorinated biphenyls (PCBs), and similar environmental contaminants, have been linked to virus outbreaks and increased viral induced mortality since the 1970s. Yet the mechanisms behind this increased susceptibility remain elusive. It has recently been illustrated that the innate immune viral detection system is tightly regulated by small non-coding RNAs, including microRNAs (miRNAs). For virus infections miRNA-155 expression is an important host response against infection, and deregulation of this miRNA is closely associated with adverse outcomes. Thus, we designed a targeted in vitro study using primary chicken fibroblasts, first exposed to a mixture of PCBs (Arochlor-1250) before being stimulated with a synthetic RNA virus (poly I:C), to determine if PCBs have the potential to deregulate miRNA-155. In this paper, we provide the first data for the deregulation of miRNA-155 when a host is exposed to a mixture of PCBs before a virus infection. Thus, we provide important evidence that PCBs can be involved in the deregulation of important miRNA pathways involved in the immune system; thereby demonstrating novel insights into the mechanism of PCB toxicity on the immune system.
      PubDate: 2018-01-30T02:55:20.184436-05:
      DOI: 10.1111/apm.12811
       
  • Histopathological evaluation of duodenal biopsy in the PreventCD project.
           An observational interobserver agreement study
    • Authors: Vincenzo Villanacci; Luisa Lorenzi, Francesco Donato, Renata Auricchio, Piotr Dziechciarz, Judit Gyimesi, Sibylle Koletzko, Zrinjka Mišak, Vanesa Morente Laguna, Isabel Polanco, David Ramos, Raanan Shamir, Riccardo Troncone, Sabine L. Vriezinga, M. Luisa Mearin
      Abstract: Aim of the current study was to evaluate the inter-observer agreement between pathologists in the diagnosis of celiac disease (CD), in the qualified context of a multicenter study. Biopsies from the “PreventCD” study, a multinational- prospective- randomized study in children with at least one-first-degree relative with CD and positive for HLA-DQ2/HLA-DQ8. Ninety-eight biopsies were evaluated. Considering diagnostic samples with villous atrophy (VA), the agreement was satisfactory (κ = 0.84), but much less when assessing the severity of these lesions. The use of the recently proposed Corazza-Villanacci classification showed a moderately higher level of agreement (κ = 0.39) than using the Marsh-Oberhuber system (κ = 0.31). 57.1% of cases were considered correctly oriented. A number of>4 samples per patient was statistically associated to a better agreement; orientation did not impact on κ values. Agreement results in this study appear more satisfactory than in previous papers and this is justified by the involvement of centers with experience in CD diagnosis and by the well-controlled setting. Despite this, the reproducibility was far from optimal with a poor agreement in grading the severity of VA. Our results stress the need of a minimum of four samples to be assessed by the pathologist.
      PubDate: 2018-01-26T01:15:37.187082-05:
      DOI: 10.1111/apm.12812
       
  • The association of interferon-gamma, interleukin-4 and interleukin-17
           single-nucleotide polymorphisms with susceptibility to tuberculosis
    • Authors: Fatemeh Mansouri; Rasoul Heydarzadeh, Saber Yousefi
      Abstract: Susceptibility to tuberculosis and progression of the disease depend on interactions between the bacterial agent, host immune system, and environmental and genetic factors. In this case-controlled study, we aimed to determine the role of single-nucleotide polymorphisms of interferon-gamma, interleukin-4 and interleukin-17 in susceptibility to tuberculosis. Genomic DNA was extracted from peripheral blood samples of patients and controls. The association of single-nucleotide polymorphisms in interleukin-4 (−590C/T), interleukin-17 (−152A/G) and interferon-gamma (+874T/A) was investigated by polymerase chain reaction (PCR)-restriction fragment length polymorphism and amplification refractory mutation system-PCR. A total of 76 tuberculosis patients and 119 healthy individuals were included in this study. The interferon-gamma (+874T/A) TA genotype was significantly associated with susceptibility to tuberculosis in patients compared to controls (OR = 1.76; 95%CI = 0.84–3.71; p = 0.007), while the interferon-gamma (+874T/A) TT genotype (OR = 0.51; 95%CI = 0.19–1.36; p = 0.007) had protective effects against tuberculosis and was related to a low risk of tuberculosis development. The difference between allelic and genotypic frequencies of interleukin-4 (−590C/T) between patients and controls was not significant (p = 0.46). Multivariate logistic regression analysis revealed that the interleukin-17 (−152A/G) AG genotype (OR = 2.27; 95%CI = 1.19–4.34; p = 0.03) and AA genotype (OR = 1.03; 95%CI = 0.43–2.44; p = 0.03) were significantly different between patients and controls. In conclusion, single-nucleotide mutations in different cytokine genes may have protective effects or increase the risk of tuberculosis.
      PubDate: 2018-01-25T23:00:48.831065-05:
      DOI: 10.1111/apm.12810
       
  • Distribution of Ebp pili among clinical and fecal isolates of Enterococcus
           faecalis and evaluation for human platelet activation
    • Authors: Roya Ahmadrajabi; Mohammad Sadegh Dalfardi, Alireza Farsinejad, Fereshteh Saffari
      Abstract: Although Enterococcus faecalis is known as normal flora in colon, it is also amongst the most common causative agents of infective endocarditis (IE). Platelet activation resulting from adherence to platelets is an essential step in the pathogenesis of IE. One of the factors proposed in adhesion is endocarditis- and biofilm- associated pili encoded by ebp operon. The aim of this study was to investigate ebp in isolates from different origins and analyze the potential of isolates to activate human platelets of different donors. The ebp distribution was investigated in E. faecalis from different origin infections (n = 103) and fecal flora (n = 20). Then, selected isolates from blood (n = 5), urine (n = 2), and fecal flora (n = 3) were analyzed by flow cytometry assay for the ability to activate platelets of four different donors. No statistically significant difference was found for the ebp presence between infective and fecal isolates. Also, it was found that the ability for platelet activation is independent of the bacterial origin. However, significant difference was found in platelet activation between different donors. The results suggest that the presence or absence of ebp is not a critical factor for platelet activation by E. faecalis isolates. However, host factors seem to contribute in this activity.
      PubDate: 2018-01-25T22:31:04.897908-05:
      DOI: 10.1111/apm.12813
       
  • Membrane-active peptide PV3 efficiently eradicates multidrug-resistant
           Pseudomonas aeruginosa in a mouse model of burn infection
    • Authors: Hamed Memariani; Delavar Shahbazzadeh, Jean-Marc Sabatier, Kamran Pooshang Bagheri
      Abstract: The aim of this study was to evaluate the topical bactericidal activity of peptide PV3 against a MDR isolate of Pseudomonas aeruginosa in a mouse model of burn infection. The structural analysis of PV3 by circular dichroism spectroscopy indicated a low peptide helical content in water, whereas a high helical content was observed in the presence of the more hydrophobic 50% (v/v) trifluoroethanol/water buffer. A confocal microscopy analysis indicated that the main action of PV3 occurred at the membrane of bacteria. Peptide PV3 exhibited superior in vitro anti-Pseudomonas activity and killing kinetics as compared with doripenem. A single dose of the topically applied peptide PV3 (4 × MBC, 120 min) was found to be sufficient to eradicate MDRP. aeruginosa in a bacterially infected mouse burn wound model, whereas doripenem (4 × MBC) failed to eradicate the initial inoculum. This indicates a potent and fast PV3-associated bactericidal activity, contrary to doripenem. An in-depth analysis of mouse skin by histopathology revealed that peptide PV3 (4 × MBC) did not induce any topical skin toxicity. Overall, the data strongly suggest that peptide PV3 might be a potent candidate antimicrobial agent active on antibiotic-resistant isolates of pathogenic bacteria.
      PubDate: 2018-01-12T04:20:39.526644-05:
      DOI: 10.1111/apm.12791
       
  • Issue Information
    • Pages: 97 - 98
      PubDate: 2018-01-25T06:57:15.72407-05:0
      DOI: 10.1111/apm.12759
       
  • Coexistence of MACC1 and NM23-H1 dysregulation and tumor budding promise
           
    • Authors: Ersin Ozturk; Secil AK Aksoy, Nesrin Ugras, Berrin Tunca, Serkan Ceylan, Gulcin Tezcan, Tuncay Yilmazlar, Omer Yerci, Unal Egeli, Gulsah Cecener
      Pages: 99 - 108
      Abstract: The tumor-node-metastasis (TNM) classification, the presence of a mucinous component, and signet ring cells are well-known criteria for identifying patients at a high risk for recurrence and determining the therapeutic approach for early-stage colon cancer (eCC). Nevertheless, recurrence can unexpectedly occur in some eCC cases after surgical resection. The aims of the present study were to evaluate the relation of dysregulated MACC1, c-MET, and NM23-H1 expression with the histopathological features of tumors in recurrence formation in eCC cases. A total of 100 sporadic eCC patients without poor prognosis factors were evaluated in this study. The relationship between the altered expression of MACC1, c-MET, and NM23-H1 and pathological microenvironmental features, including the presence of tumor budding and desmoplasia, were assessed. The primary outcomes, including 5-year overall survival (OS) and disease-free survival (DFS), were also measured. Compared with nonrecurrent patients, the expression level of MACC1 was 8.27-fold higher, and NM23-H1 was 11.36-fold lower in patients with recurrence during the 5-year follow-up (p = 0.0345 and p = 0.0301, respectively). In addition, the coexistence of high MACC1 and low NM23-H1 expression and tumor budding was associated with short OS (p 
      PubDate: 2018-01-25T06:57:15.335125-05:
      DOI: 10.1111/apm.12801
       
  • Alarmins as biomarkers of gastrointestinal surgical injury – a pilot
           study
    • Authors: Jan Maca; Michal Holub, Filip Bursa, Peter Ihnat, Petr Reimer, Zdenek Svagera, Michal Burda, Pavel Sevcik
      Pages: 152 - 159
      Abstract: The dysregulation of inflammatory response to surgical injury affects outcomes. Alarmins, the earliest bioactive substances from damaged cells, play a crucial role in initiating the inflammation. We analyzed serum levels of alarmins (S100A8, S100A12, high mobility group box, and heat shock protein 70) after major abdominal surgery (MAS) in surgical (S) (n = 82) and nonsurgical (NS) groups (n = 35). The main objective was determining a role of selected alarmins in host response to MAS. The secondary objectives were (i) evaluation of the relationship among alarmins and selected biomarkers (C-reactive protein, interleukin-6), (ii) influence of the place of gastrointestinal resection, and (iii) role of alarmins in MAS for cancer. Except for HMGB1, the levels of all alarmins were higher in the S group compared with the NS group. In the S group, positive correlations were found between S100A8 and both IL-6 and CRP. Additionally, the S100A8 level was higher (p 
      PubDate: 2018-01-25T06:57:15.806204-05:
      DOI: 10.1111/apm.12798
       
  • Native aortic endocarditis due to an unusual pathogen: Actinotignum
           schaalii
    • Authors: Caroline Loïez; Rosario Pilato, Adeline Mambie, Sylvie Hendricx, Karine Faure, Frédéric Wallet
      Pages: 171 - 173
      Abstract: We report a case of aortic native valve endocarditis due to Actinotignum schaalii in an 89-year-old man with prostatism history but no signs of urinary infection. Actinotignum schaalii was isolated not only from positive blood culture but also from cardiac valve culture using mass spectrometry and 16S rDNA sequencing. Actinotignum schaalii is recognized as commensal of genitourinary tract, but it was underdiagnosed. The advances in bacterial identification such as MALDI-TOF MS probably explain the increasing described cases of infections due to A. schaalii these last years.
      PubDate: 2018-01-25T06:57:18.063375-05:
      DOI: 10.1111/apm.12803
       
  • Placental pathologic lesions with a significant recurrence risk –
           what not to miss!
    • Authors: Athena Chen; Drucilla J. Roberts
      Abstract: Here, we review three important placental pathologies with significant clinical implications and recurrence risks. They are, in order of most to least frequently seen, villitis of unknown etiology, chronic histiocytic intervillositis, and massive perivillous fibrin deposition (also known as maternal floor infarction). These entities occur in both preterm and term gestations and are observed more frequently with maternal and obstetric disorders including prior pregnancy loss, hypertension/preeclampsia, and autoimmune disease. They are associated with, and probably the cause of, significant perinatal morbidity and mortality including intrauterine growth restriction, fetal and neonatal demise, and fetal/neonatal neurocompromise (seizures and cerebral palsy). All three entities have high recurrence risks, with recurrence rates ranging from 34 to 100%. The histologic features of villitis of unknown etiology, chronic histiocytic intervillositis, and massive perivillous fibrin deposition are described herein. We discuss the clinical associations and suggest the subsequent clinical and pathological evaluation. Hypotheses as to the biology of these lesions are reviewed.
      PubDate: 2017-12-22T07:11:36.206553-05:
      DOI: 10.1111/apm.12796
       
  • Dynamics of HCV epidemiology in Aydin province of Turkey and the
           associated factors
    • Authors: Sevin Kirdar; Neriman Aydin, Yasin Tiryaki, Bulent Ertugrul, Adil Coskun, Mehmet Bilgen
      Abstract: This paper gives an update on the local distributions of HCV genotypes in Aydin province of Turkey, provides a comparison with the previous records, and discusses the potential causal reasons shaping the evolving genotype profiles. Patient files from 2011 to 2016 were retrospectively analyzed, and newly detected cases were documented. Out of 286 patients, male and female ratios were determined to remain nearly the same (~50%). Genotype 1 was still the most common (90.2%), followed by genotype 3 (5.9%), genotype 2 (2.1%), and genotype 4 (1.4%) in frequency. There were international patients (4.50%). One patient had genotyped 2+3 together. Genotypes 4 and 2+3 were detected for the first time, and the patients with genotype 4 were interestingly all male and also domestic individuals. However, these patients traveled or lived abroad in the past due to occupational reasons, thereby likely acquired the infection while abroad. HCV surveillance system is currently inadequate and some infected patients may go undetected in the province. Remapping the regional distribution of HCV genotypes from time-to-time is required for identifying the local dynamics and causes leading to it. This process enhances the clinical preparation and readiness for the better management of the disease.
      PubDate: 2017-12-21T21:16:01.832206-05:
      DOI: 10.1111/apm.12790
       
  • Increased proportions of B cells with spontaneous production of
           interleukin-10 in HIV-infected individuals are normalized during
           combination antiretroviral therapy: a longitudinal study
    • Authors: Camilla Sambleben; Andreas Dehlbæk Knudsen, Hans J. Hartling, Claus H. Nielsen, Susanne D. Nielsen
      Abstract: Interleukin-10 (IL-10)-producing B cells (B10 cells) may inhibit HIV-specific T cells and are elevated in untreated HIV infection. We aimed to determine the effect of combination antiretroviral treatment (cART) on the proportion of B10 cells. Furthermore, we compared B10-cell proportions in HIV-infected progressors and viremic controllers. This was a prospective study including HIV-infected progressors, viremic controllers and healthy controls. Progressors initiating cART were followed for 6 months. Purified B cells were stimulated with CpG, alone or in combination with HIV gp120, and the proportion of B10 cells was measured by flow cytometry. Without stimulation, the B10-cell proportion was higher in progressors than in healthy controls, while viremic controllers and healthy controls had comparable proportions. Moreover, the proportion of CD24hiCD38hi transitional B cells was higher in progressors than in healthy controls. After initiation of cART, the proportion of B10 cells and transitional B cells decreased. In conclusion, progressors had elevated B10-cell proportions, while viremic controllers displayed normal proportions. After initiation of cART, the B10-cell proportion decreased. This could limit B10-cell-mediated suppression of specific CD8+ T-cell responses.
      PubDate: 2017-12-21T21:15:59.574629-05:
      DOI: 10.1111/apm.12795
       
  • Oseltamivir and indomethacin reduce the oxidative stress in brain and
           stomach of infected rats
    • Authors: David Calderón Guzmán; Maribel Ortiz Herrera, Norma Osnaya Brizuela, Gerardo Barragán Mejía, Ernestina Hernández García, Hugo Juárez Olguín, Norma Labra Ruíz, Armando Valenzuela Peraza
      Abstract: The aim of this study was to determine the effect of oseltamivir and indomethacin on lipid peroxidation (LP), GABA levels, and ATPase activity in brain and stomach of normal and infected rats (IR), as novel inflammation model. Female Sprague Dawley rats grouped five each, either in the absence or presence of a live culture of Salmonella typhimurium (S. typh), were treated as follows: group 1 (control), PBS buffer; group 2, oseltamivir (100 mg/kg); group 3, indomethacin (67 μg/rat); group 4, oseltamivir (100 mg/kg) + indomethacin (67 μg/rat). All drugs were given intraperitoneally for 5 days. IR received the same treatments and the brain and stomach of the rats were removed in order to measure levels of GABA, LP, and total ATPase, using validated methods. Levels of GABA increased in stomach and cortex of IR with oseltamivir, but decreased in striatum and cerebellum/medulla oblongata of IR with indomethacin. LP decreased in the three brain regions of IR with oseltamivir. ATPase increased in stomach of IR and non-IR with oseltamivir and in striatum and cerebellum/medulla oblongata of IR with indomethacin. Results suggest that the effect of free radicals produced in an infection and inflammatory condition caused by S. typh could be less toxic by a combination of oseltamivir and indomethacin.
      PubDate: 2017-12-21T21:15:54.109944-05:
      DOI: 10.1111/apm.12794
       
  • IFN-γ against the 38-kDa antigen of Mycobacterium tuberculosis
           discriminates pulmonary tuberculosis from infection and infection from
           exposure: evidence from a study of human population in a high endemic
           setting
    • Authors: Fekadu Abebe; Mulugeta Belay, Mengistu Legesse
      Abstract: Mycobacterium tuberculosis (Mtb) 38-kDa antigen is an immunogenic lipoprotein that induces strong T-cell responses in experimental animals. However, there is limited information on the role of this antigen in human population. In this article, we present the dynamics of pro-inflammatory (IFN-γ and TNF-α) and anti-inflammatory cytokine (IL-10) against the 38 kDa in cohorts of pulmonary TB (PTB) patients, household contacts (HHCs), and community controls (CCs) in a high endemic setting. Whole blood assay was used to determine the levels of cytokines in 149 patients, 149 HHCs, and 68 CCs at baseline, 6 months, and 12 months. At baseline, the level of IFN-γ was significantly (p < 0.0001) higher in CCs and HHCs than in untreated patients. CCs had significantly (p < 0.05) higher level of IFN-γ than HHCs. There was no significant difference between treated and untreated patients, and there was no significant change in HHCs over 12 months. At baseline, the levels of IL-10 and TNF-α were significantly (p < 0.0001) higher in patients than in HHCs and CCs. No significant change was observed between treated patients and untreated patients and HHCs over time. The study shows that IFN-γ against the 38 kDa discriminates clinical TB from infection and infection from exposure, suggesting its potential for immune protection and diagnosis.
      PubDate: 2017-12-13T01:55:42.439843-05:
      DOI: 10.1111/apm.12793
       
  • Macrolide and fluoroquinolone resistance in Mycoplasma genitalium in two
           Swedish counties, 2011–2015
    • Authors: Ronza Hadad; Daniel Golparian, Amaya C. Lagos, Johan Ljungberg, Peter Nilsson, Jörgen S. Jensen, Hans Fredlund, Magnus Unemo
      Abstract: Mycoplasma genitalium, causing non-gonococcal non-chlamydial urethritis and associated with cervicitis, has developed antimicrobial resistance (AMR) to both the macrolide azithromycin (first-line treatment) and the fluoroquinolone moxifloxacin (second-line treatment). Our aim was to estimate the prevalence of resistance, based on genetic AMR determinants, to these antimicrobials in the M. genitalium population in two Swedish counties, Örebro and Halland, 2011–2015. In total, 672 M. genitalium positive urogenital samples were sequenced for 23S rRNA and parC gene mutations associated with macrolide and fluoroquinolone resistance, respectively. Of the samples, 18.6% and 3.2% in Örebro and 15.2% and 2.7% in Halland contained mutations associated with macrolide and fluoroquinolone resistance, respectively. The predominating resistance-associated mutations in the 23S rRNA gene was A2059G (n = 39) in Örebro and A2058G (n = 13) and A2059G (n = 13) in Halland. The most prevalent possible resistance-associated ParC amino acid alterations were S83I (n = 4) in Örebro and S83N (n = 2) in Halland. Resistance-associated mutations to both macrolides and fluoroquinolones were found in 0.7% of samples. Our findings emphasize the need for routine AMR testing, at a minimum for macrolide resistance, of all M. genitalium-positive samples and regular national and international surveillance of AMR in M. genitalium, to ensure effective patient management and rational antimicrobial use.
      PubDate: 2017-12-13T01:33:45.899339-05:
      DOI: 10.1111/apm.12792
       
  • Pseudomesotheliomatous carcinoma of the pleura: an autopsy case of
           metastasis from a G-CSF-producing anaplastic carcinoma of the pancreas
    • Authors: Yui Hattori; Kazuhiro Sentani, Takuya Hattori, Naohide Oue, Wataru Yasui
      Abstract: Pseudomesotheliomatous carcinoma is a malignant tumor that extends along the pleura mimicking malignant mesothelioma. An 81-year-old male patient presented to our hospital with epigastralgia, and abdominal computed tomography (CT) showed a 36-mm tumor in the pancreatic tail. The laboratory data revealed a high leukocyte count (>44 000/μL). Chest CT showed left pleural thickening with pleural effusion. The cancer showed a poor response to chemotherapy, and the patient died of respiratory failure at 5 months after the onset of disease. Autopsy showed solid tumor with hemorrhage, measuring 6 cm in diameter, in the pancreatic tail, with wide invasion to the stomach, left adrenal gland, spleen, and diaphragm. The left pleura, which was circumferentially thickened by the involved tumor, macroscopically resembled pleural mesothelioma. Histologically, the primary pancreatic tumor was diagnosed as anaplastic carcinoma, due to the absence of glandular structures or other features that would indicate a definite direction of differentiation. The primary lesion and carcinoma involving the left pleura were all positive for G-CSF. We recently experienced an autopsy case of G-CSF-producing anaplastic carcinoma with pseudomesotheliomatous spread.
      PubDate: 2017-12-13T00:56:10.312917-05:
      DOI: 10.1111/apm.12789
       
  • Erysipelothrix rhusiopathiae serotype 5-associated metritis in a Norwegian
           Red heifer
    • Authors: Øyvor Kolbjørnsen; Bjarne Bergsjø, Jeanette Sveen, Tanja Opriessnig
      Abstract: This report summarized the findings of a case of Erysipelothrix rhusiopathiae infection in a farmed Norwegian Red heifer located in the south-east of Norway. The 2.5-year-old pregnant heifer was found dead after a short episode of inappetence. On gross exam, the heifer was severely dehydrated with uterine torsion. Microscopically, necrosis of the endometrium was present throughout the uterus along with presence of intralesional Gram-positive bacteria, interstitial nephritis, and pyelonephritis. E. rhusiopathiae was isolated from the uterus and placenta and was also demonstrated by immunohistochemistry (IHC) in the uterus, placenta, and kidney. The E. rhusiopathiae isolate was further characterized as serotype 5. To the authors’ knowledge, this is the first report of bacterial metritis associated with E. rhusiopathiae serotype 5 infection. The etiology of the infection is unknown but the E. rhusiopathiae could have been a primary or opportunistic pathogen. Serotype 5 of E. rhusiopathiae has been identified in several mammalian species in recent years and could be emerging.
      PubDate: 2017-11-20T09:05:42.208316-05:
      DOI: 10.1111/apm.12788
       
 
 
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