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ABCD. Arquivos Brasileiros de Cirurgia Digestiva     Open Access   (Followers: 4)
ACIMED     Open Access   (SJR: 0.11, h-index: 4)
Acta Amazonica     Open Access   (Followers: 2, SJR: 0.319, h-index: 13)
Acta Bioethica     Open Access   (Followers: 2, SJR: 0.119, h-index: 3)
Acta Bioquimica Clinica Latinoamericana     Open Access   (Followers: 1, SJR: 0.134, h-index: 7)
Acta Botanica Brasilica     Open Access   (Followers: 2, SJR: 0.403, h-index: 17)
Acta botánica mexicana     Open Access   (SJR: 0.212, h-index: 4)
Acta Cirurgica Brasileira     Open Access   (SJR: 0.271, h-index: 14)
Acta Limnologica Brasiliensia     Open Access   (Followers: 1, SJR: 0.204, h-index: 2)
Acta Literaria     Open Access   (Followers: 2, SJR: 0.1, h-index: 2)
Acta Médica Costarricense     Open Access  
Acta Medica Peruana     Open Access   (Followers: 2)
Acta Neurológica Colombiana     Open Access   (Followers: 1)
Acta Ortopédica Brasileira     Open Access   (Followers: 2, SJR: 0.159, h-index: 9)
Acta Paulista de Enfermagem     Open Access   (Followers: 1, SJR: 0.34, h-index: 12)
Acta Pediátrica Costarricense     Open Access   (Followers: 1)
Acta Scientiarum. Agronomy     Open Access   (Followers: 3, SJR: 0.65, h-index: 11)
Acta Toxicológica Argentina     Open Access  
Acta zoológica mexicana     Open Access  
Actualidades Biológicas     Open Access  
African Human Rights Law J.     Open Access   (Followers: 17)
African Natural History     Open Access   (Followers: 1)
Afro-Asia     Open Access  
Ágora - studies in psychoanalytic theory     Open Access   (Followers: 2, SJR: 0.1, h-index: 1)
Agricultura Tecnica     Open Access   (Followers: 6)
Agrociencia     Open Access   (Followers: 2, SJR: 0.192, h-index: 13)
Agronomía Mesoamericana     Open Access   (Followers: 1)
Aisthesis     Open Access  
Alea : Estudos Neolatinos     Open Access   (Followers: 1, SJR: 0.126, h-index: 2)
Alpha (Osorno)     Open Access  
Ambiente & sociedade     Open Access   (Followers: 2, SJR: 0.189, h-index: 5)
Ambiente Construído     Open Access   (Followers: 2)
América Latina en la historia económica     Open Access   (Followers: 1, SJR: 0.101, h-index: 1)
Anais Brasileiros de Dermatologia     Open Access   (Followers: 1, SJR: 0.456, h-index: 16)
Anais da Academia Brasileira de Ciências     Open Access   (Followers: 2, SJR: 0.344, h-index: 34)
Anais do Museu Paulista : História e Cultura Material     Open Access   (Followers: 1)
Anales de Medicina Interna     Open Access   (Followers: 1)
Anales del Instituto de la Patagonia     Open Access   (Followers: 2)
Anales del Sistema Sanitario de Navarra     Open Access   (Followers: 1, SJR: 0.179, h-index: 15)
Analisis Politico     Open Access   (Followers: 3, SJR: 0.1, h-index: 2)
Andean geology     Open Access   (Followers: 5, SJR: 0.825, h-index: 22)
Angiologia e Cirurgia Vascular     Open Access  
Annali dell'Istituto Superiore di Sanità     Open Access   (SJR: 0.272, h-index: 25)
Anuario Colombiano de Historia Social y de la Cultura     Open Access   (Followers: 1)
Apuntes : Revista de Estudios sobre Patrimonio Cultural - J. of Cultural Heritage Studies     Open Access   (Followers: 3)
Archivos de cardiología de México     Open Access   (Followers: 1, SJR: 0.136, h-index: 11)
Archivos de Medicina Veterinaria     Open Access   (Followers: 1, SJR: 0.249, h-index: 13)
Archivos de Neurociencias     Open Access   (Followers: 2, SJR: 0.104, h-index: 4)
Archivos de Pediatria del Uruguay     Open Access   (Followers: 1)
Archivos de Zootecnia     Open Access   (Followers: 4, SJR: 0.231, h-index: 6)
Archivos Españoles de Urología     Open Access   (SJR: 0.228, h-index: 16)
Archivos Venezolanos de Farmacología y Terapéutica     Open Access   (Followers: 1, SJR: 0.102, h-index: 2)
Argos     Open Access   (Followers: 2, SJR: 0.1, h-index: 1)
ARQ     Open Access   (Followers: 5, SJR: 0.1, h-index: 1)
Arquivo Brasileiro de Medicina Veterinária e Zootecnia     Open Access   (Followers: 1, SJR: 0.292, h-index: 18)
Arquivos Brasileiros de Cardiologia     Open Access   (Followers: 1, SJR: 0.33, h-index: 29)
Arquivos Brasileiros de Endocrinologia e Metabologia     Open Access   (SJR: 0.329, h-index: 26)
Arquivos Brasileiros de Oftalmologia     Open Access   (SJR: 0.298, h-index: 15)
Arquivos de Gastroenterologia     Open Access   (Followers: 1, SJR: 0.43, h-index: 18)
Arquivos de Neuro-Psiquiatria     Open Access   (SJR: 0.357, h-index: 33)
Arquivos do Instituto Biológico     Open Access  
Arquivos Internacionais de Otorrinolaringologia     Open Access  
ARS     Open Access   (Followers: 1)
Atenea (Concepción)     Open Access   (Followers: 1, SJR: 0.1, h-index: 2)
Atmósfera     Open Access   (SJR: 0.346, h-index: 13)
Audiology - Communication Research     Open Access   (Followers: 4)
Avaliação : Revista da Avaliação da Educação Superior (Campinas)     Open Access  
Avances en Odontoestomatologia     Open Access   (SJR: 0.112, h-index: 4)
Avances en Periodoncia e Implantología Oral     Open Access   (Followers: 4)
Bakhtiniana : Revista de Estudos do Discurso     Open Access  
BAR. Brazilian Administration Review     Open Access   (SJR: 0.165, h-index: 4)
Biocell     Open Access   (Followers: 1, SJR: 0.228, h-index: 19)
Biota Neotropica     Open Access   (SJR: 0.437, h-index: 12)
Boletim de Ciências Geodésicas     Open Access   (SJR: 0.202, h-index: 4)
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas     Open Access   (Followers: 1, SJR: 0.201, h-index: 2)
Boletin Chileno de Parasitologia     Open Access  
Boletín de Filología     Open Access  
Boletín de Historia Argentina y Americana Dr. Emilio Ravignani     Open Access   (Followers: 1)
Boletin de la Sociedad Argentina de Botanica     Open Access   (Followers: 1, SJR: 0.191, h-index: 3)
Boletín de la Sociedad Botánica de México     Open Access  
Boletin de la Sociedad Chilena de Quimica     Open Access  
Boletín de la Sociedad Geológica Mexicana     Open Access   (SJR: 0.206, h-index: 7)
Boletín del Museo Chileno de Arte Precolombino     Open Access   (Followers: 1)
Bosque     Open Access   (Followers: 1, SJR: 0.245, h-index: 7)
Bragantia     Open Access   (Followers: 2, SJR: 0.685, h-index: 18)
Brazilian Archives of Biology and Technology     Open Access   (Followers: 1, SJR: 0.237, h-index: 24)
Brazilian Dental J.     Open Access   (Followers: 2, SJR: 0.433, h-index: 28)
Brazilian J. of Biology     Open Access   (Followers: 3, SJR: 0.436, h-index: 30)
Brazilian J. of Chemical Engineering     Open Access   (Followers: 3, SJR: 0.437, h-index: 25)
Brazilian J. of Food Technology     Open Access   (Followers: 3)
Brazilian J. of Medical and Biological Research     Open Access   (SJR: 0.431, h-index: 62)
Brazilian J. of Microbiology     Open Access   (Followers: 2, SJR: 0.321, h-index: 31)
Brazilian J. of Oceanography     Open Access   (Followers: 3, SJR: 0.339, h-index: 8)
Brazilian J. of Oral Sciences     Open Access   (Followers: 1, SJR: 0.136, h-index: 5)
Brazilian J. of Physical Therapy     Open Access   (SJR: 0.53, h-index: 12)
Brazilian J. of Plant Physiology     Open Access   (Followers: 4, SJR: 0.243, h-index: 30)
Brazilian J. of Veterinary Research and Animal Science     Open Access   (Followers: 7, SJR: 0.145, h-index: 8)
Brazilian Oral Research     Open Access  
Brazilian Political Science Review     Open Access  
Bulletin of the World Health Organization     Open Access   (Followers: 10, SJR: 2.395, h-index: 105)

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Journal Cover   Brazilian Journal of Medical and Biological Research
  [SJR: 0.431]   [H-I: 62]   Follow
  This is an Open Access Journal Open Access journal
   ISSN (Print) 0100-879X - ISSN (Online) 1414-431X
   Published by SciELO Homepage  [709 journals]
  • Predictive significance of standardized uptake value parameters of FDG-PET
           in patients with non-small cell lung carcinoma

    • Abstract: 18F-fluoro-2-deoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) is widely used to diagnose and stage non-small cell lung cancer (NSCLC). The aim of this retrospective study was to evaluate the predictive ability of different FDG standardized uptake values (SUVs) in 74 patients with newly diagnosed NSCLC. 18F-FDG PET/CT scans were performed and different SUV parameters (SUVmax, SUVavg, SUVT/L, and SUVT/A) obtained, and their relationship with clinical characteristics were investigated. Meanwhile, correlation and multiple stepwise regression analyses were performed to determine the primary predictor of SUVs for NSCLC. Age, gender, and tumor size significantly affected SUV parameters. The mean SUVs of squamous cell carcinoma were higher than those of adenocarcinoma. Poorly differentiated tumors exhibited higher SUVs than well-differentiated ones. Further analyses based on the pathologic type revealed that the SUVmax, SUVavg, and SUVT/L of poorly differentiated adenocarcinoma tumors were higher than those of moderately or well-differentiated tumors. Among these four SUV parameters, SUVT/L was the primary predictor for tumor differentiation. However, in adenocarcinoma, SUVmax was the determining factor for tumor differentiation. Our results showed that these four SUV parameters had predictive significance related to NSCLC tumor differentiation; SUVT/L appeared to be most useful overall, but SUVmax was the best index for adenocarcinoma tumor differentiation.
  • Effects of 5-aza-2′deoxycytidine on RECK gene expression
           and tumor invasion in salivary adenoid cystic carcinoma

    • Abstract: Reversion-inducing cysteine-rich protein with kazal motifs (RECK), a novel tumor suppressor gene that negatively regulates matrix metalloproteinases (MMPs), is expressed in various normal human tissues but downregulated in several types of human tumors. The molecular mechanism for this downregulation and its biological significance in salivary adenoid cystic carcinoma (SACC) are unclear. In the present study, we investigated the effects of a DNA methyltransferase (DNMT) inhibitor, 5-aza-2′deoxycytidine (5-aza-dC), on the methylation status of the RECK gene and tumor invasion in SACC cell lines. Methylation-specific PCR (MSP), Western blot analysis, and quantitative real-time PCR were used to investigate the methylation status of the RECK gene and expression of RECK mRNA and protein in SACC cell lines. The invasive ability of SACC cells was examined by the Transwell migration assay. Promoter methylation was only found in the ACC-M cell line. Treatment of ACC-M cells with 5-aza-dC partially reversed the hypermethylation status of the RECK gene and significantly enhanced the expression of mRNA and protein, and 5-aza-dC significantly suppressed ACC-M cell invasive ability. Our findings showed that 5-aza-dC inhibited cancer cell invasion through the reversal of RECK gene hypermethylation, which might be a promising chemotherapy approach in SACC treatment.
  • Association between anaerobic components of the maximal accumulated oxygen
           deficit and 30-second Wingate test

    • Abstract: The purpose of this study was to analyze the relationship between the anaerobic components of the maximal accumulated oxygen deficit (MAOD) and of the 30-second Wingate anaerobic test (30-WAnT). Nine male physical education students performed: a) a maximal incremental exercise test; b) a supramaximal constant workload test to determine the anaerobic components of the MAOD; and c) a 30-WAnT to measure the peak power (PP) and mean power (MP). The fast component of the excess post-exercise oxygen consumption and blood lactate accumulation were measured after the supramaximal constant workload test in order to determine the contributions made by alactic (ALMET) and lactic (LAMET) metabolism. Significant correlations were found between PP and ALMET (r=0.71; P=0.033) and between MP and LAMET (r=0.72; P=0.030). The study results suggested that the anaerobic components of the MAOD and of the 30-WAnT are similarly applicable in the assessment of ALMET and LAMET during high-intensity exercise.
  • Esculetin, a coumarin derivative, exerts in vitro and in
    antiproliferative activity against hepatocellular carcinoma by
           initiating a mitochondrial-dependent apoptosis pathway

    • Abstract: This study investigated the in vitro and in vivo antiproliferative activity of esculetin against hepatocellular carcinoma, and clarified its potential molecular mechanisms. Cell viability was determined by the MTT (tetrazolium) colorimetric assay. In vivo antitumor activity of esculetin was evaluated in a hepatocellular carcinoma mouse model. Seventy-five C57BL/6J mice were implanted with Hepa1-6 cells and randomized into five groups (n=15 each) given daily intraperitoneal injections of vehicle (physiological saline), esculetin (200, 400, or 700 mg·kg-1·day-1), or 5-Fu (200 mg·kg-1·day-1) for 15 days. Esculetin significantly decreased tumor growth in mice bearing Hepa1-6 cells. Tumor weight was decreased by 20.33, 40.37, and 55.42% with increasing doses of esculetin. Esculetin significantly inhibited proliferation of HCC cells in a concentration- and time-dependent manner and with an IC50 value of 2.24 mM. It blocked the cell cycle at S phase and induced apoptosis in SMMC-7721 cells with significant elevation of caspase-3 and caspase-9 activity, but did not affect caspase-8 activity. Moreover, esculetin treatment resulted in the collapse of mitochondrial membrane potential in vitro and in vivo accompanied by increased Bax expression and decreased Bcl-2 expression at both transcriptional and translational levels. Thus, esculetin exerted in vitro and in vivo antiproliferative activity in hepatocellular carcinoma, and its mechanisms involved initiation of a mitochondrial-mediated, caspase-dependent apoptosis pathway.
  • Expression of NR1I3 in mouse lung tumors induced by the tobacco-specific
           nitrosamine 4-(methylnitrosamino)-4-(3-pyridyl)-1-butanone

    • Abstract: Nuclear receptor subfamily 1, group I, member 3 (NR1I3) is reported to be a possible novel therapeutic target for some cancers, including lung, brain and hematopoietic tumors. Here, we characterized expression of NR1I3 in a mouse model of lung carcinogenesis induced by 4-(methylnitrosamino)-4-(3-pyridyl)-1-butanone (NNK), the most potent tobacco carcinogen. Lung tumors were collected from mice treated with NNK (400 mg/kg) and euthanized after 52 weeks. Benign and malignant lesions were formalin-fixed and paraffin-embedded for histology and immunohistochemistry, with samples snap-frozen for mRNA analysis. Immunohistochemically, we found that most macrophages and type I and II pneumocytes expressed NR1I3, whereas fibroblasts and endothelial cells were NR1I3−. Compared with benign lesions, malignant lesions had less NR1I3+ tumor cells. Gene expression analysis also showed an inverse correlation between NR1I3 mRNA expression and tumor size (P=0.0061), suggesting that bigger tumors expressed less NR1I3 transcripts, in accordance with our immunohistochemical NR1I3 tests. Our results indicate that NR1I3 expression decreased during progression of malignant lung tumors induced by NNK in mice.
  • Early neonatal echocardiographic findings in an experimental rabbit model
           of congenital diaphragmatic hernia

    • Abstract: This study aimed to demonstrate that congenital diaphragmatic hernia (CDH) results in vascular abnormalities that are directly associated with the severity of pulmonary hypoplasia and hypertension. These events increase right ventricle (RV) afterload and may adversely affect disease management and patient survival. Our objective was to investigate cardiac function, specifically right ventricular changes, immediately after birth and relate them to myocardial histological findings in a CDH model. Pregnant New Zealand rabbits underwent the surgical procedure at 25 days of gestation (n=14). CDH was created in one fetus per horn (n=16), and the other fetuses were used as controls (n=20). At term (30 days), fetuses were removed, immediately dried and weighed before undergoing four-parameter echocardiography. The lungs and the heart were removed, weighed, and histologically analyzed. CDH animals had smaller total lung weight (P<0.005), left lung weight (P<0.005), and lung-to-body ratio (P<0.005). Echocardiography revealed a smaller left-to-right ventricle ratio (LV/RV, P<0.005) and larger diastolic right ventricle size (DRVS, P<0.007). Histologic analysis revealed a larger number of myocytes undergoing mitotic division (186 vs 132, P<0.05) in CDH hearts. Immediate RV dilation of CDH hearts is related to myocyte mitosis increase. This information may aid the design of future strategies to address pulmonary hypertension in CDH.
  • PPARγ induces growth inhibition and apoptosis through upregulation of
           insulin-like growth factor-binding protein-3 in gastric cancer cells

    • Abstract: Peroxisome proliferator activator receptor-gamma (PPARγ) is a ligand-activated transcriptional factor involved in the carcinogenesis of various cancers. Insulin-like growth factor-binding protein-3 (IGFBP-3) is a tumor suppressor gene that has anti-apoptotic activity. The purpose of this study was to investigate the anticancer mechanism of PPARγ with respect to IGFBP-3. PPARγ was overexpressed in SNU-668 gastric cancer cells using an adenovirus gene transfer system. The cells in which PPARγ was overexpressed exhibited growth inhibition, induction of apoptosis, and a significant increase in IGFBP-3 expression. We investigated the underlying molecular mechanisms of PPARγ in SNU-668 cells using an IGFBP-3 promoter/luciferase reporter system. Luciferase activity was increased up to 15-fold in PPARγ transfected cells, suggesting that PPARγ may directly interact with IGFBP-3 promoter to induce its expression. Deletion analysis of the IGFBP-3 promoter showed that luciferase activity was markedly reduced in cells without putative p53-binding sites (-Δ1755, -Δ1795). This suggests that the critical PPARγ-response region is located within the p53-binding region of the IGFBP-3 promoter. We further demonstrated an increase in PPARγ-induced luciferase activity even in cells treated with siRNA to silence p53 expression. Taken together, these data suggest that PPARγ exhibits its anticancer effect by increasing IGFBP-3 expression, and that IGFBP-3 is a significant tumor suppressor.
  • Cytokine expression patterns and mesenchymal stem cell karyotypes from the
           bone marrow microenvironment of patients with myelodysplastic syndromes

    • Abstract: The purpose of this study was to explore cytokine expression patterns and cytogenetic abnormalities of mesenchymal stem cells (MSCs) from the bone marrow microenvironment of Chinese patients with myelodysplastic syndromes (MDS). Bone marrow samples were obtained from 30 cases of MDS (MDS group) and 30 healthy donors (control group). The expression pattern of cytokines was detected by customized protein array. The karyotypes of MSCs were analyzed using fluorescence in situ hybridization. Compared with the control group, leukemia inhibitory factor, stem cell factor (SCF), stromal cell-derived factor (SDF-1), bone morphogenetic protein 4, hematopoietic stem cell (HSC) stimulating factor, and transforming growth factor-β in the MDS group were significantly downregulated (P<0.05), while interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), and programmed death ligand (B7-H1) were significantly upregulated (P<0.05). For chromosome abnormality analysis, the detection rate of abnormal karyotypes (+8, -8, -20, 20q-, -Y, -7, 5q-) was 30% in the MDS group and 0% in the control group. In conclusion, the up- and downregulated expression of these cytokines might play a key role in the pathogenesis of MDS. Among them, SCF and SDF-1 may play roles in the apoptosis of HSCs in MDS; and IFN-γ, TNF-α, and B7-H1 may be associated with apoptosis of bone marrow cells in MDS. In addition, the abnormal karyotypes might be actively involved in the pathogenesis of MDS. Further studies are required to determine the role of abnormal karyotypes in the occurrence and development of MDS.
  • Improved biological performance of magnesium by micro-arc oxidation

    • Abstract: Magnesium and its alloys have recently been used in the development of lightweight, biodegradable implant materials. However, the corrosion properties of magnesium limit its clinical application. The purpose of this study was to comprehensively evaluate the degradation behavior and biomechanical properties of magnesium materials treated with micro-arc oxidation (MAO), which is a new promising surface treatment for developing corrosion resistance in magnesium, and to provide a theoretical basis for its further optimization and clinical application. The degradation behavior of MAO-treated magnesium was studied systematically by immersion and electrochemical tests, and its biomechanical performance when exposed to simulated body fluids was evaluated by tensile tests. In addition, the cell toxicity of MAO-treated magnesium samples during the corrosion process was evaluated, and its biocompatibility was investigated under in vivo conditions. The results of this study showed that the oxide coating layers could elevate the corrosion potential of magnesium and reduce its degradation rate. In addition, the MAO-coated sample showed no cytotoxicity and more new bone was formed around it during in vivo degradation. MAO treatment could effectively enhance the corrosion resistance of the magnesium specimen and help to keep its original mechanical properties. The MAO-coated magnesium material had good cytocompatibility and biocompatibility. This technique has an advantage for developing novel implant materials and may potentially be used for future clinical applications.
  • Galactose oxidation using 13C in healthy and galactosemic

    • Abstract: Galactosemia is an inborn error of galactose metabolism that occurs mainly as the outcome of galactose-1-phosphate uridyltransferase (GALT) deficiency. The ability to assess galactose oxidation following administration of a galactose-labeled isotope (1-13C-galactose) allows the determination of galactose metabolism in a practical manner. We aimed to assess the level of galactose oxidation in both healthy and galactosemic Brazilian children. Twenty-one healthy children and seven children with galactosemia ranging from 1 to 7 years of age were studied. A breath test was used to quantitate 13CO2 enrichment in exhaled air before and at 30, 60, and 120 min after the oral administration of 7 mg/kg of an aqueous solution of 1-13C-galactose to all children. The molar ratios of 13CO2 and 12CO2 were quantified by the mass/charge ratio (m/z) of stable isotopes in each air sample by gas-isotope-ratio mass spectrometry. In sick children, the cumulative percentage of 13C from labeled galactose (CUMPCD) in the exhaled air ranged from 0.03% at 30 min to 1.67% at 120 min. In contrast, healthy subjects showed a much broader range in CUMPCD, with values from 0.4% at 30 min to 5.58% at 120 min. The study found a significant difference in galactose oxidation between children with and without galactosemia, demonstrating that the breath test is useful in discriminating children with GALT deficiencies.
  • Plasma levels and placental expression of vaspin in pregnant women with
           diabetes mellitus

    • Abstract: The present study aimed to investigate visceral adipose tissue-specific serpin (vaspin) concentrations in serum and term placentas and relate these values to insulin resistance and lipid parameters in women with gestational diabetes mellitus (GDM). A total of 30 GDM subjects and 27 age-matched pregnant women with normal glucose tolerance (NGT, control) were included. Serum glucose, glycated hemoglobin (HbA1c), lipid profile, insulin, and vaspin were measured at the end of pregnancy, and homeostasis model of assessment-insulin resistance (HOMA-IR) values were calculated. Vaspin mRNA and protein levels in placentas were measured by real-time fluorescence quantitative reverse transcription polymerase chain reaction (RT-qPCR) and Western blotting, respectively. Serum vaspin levels were significantly lower in the GDM group than in controls (0.49±0.24 vs 0.83±0.27 ng/mL, respectively; P<0.01). Three days after delivery, serum vaspin levels were significantly decreased in subjects with GDM (0.36±0.13 vs 0.49±0.24 ng/mL, P<0.01). However, in the GDM group, serum vaspin levels were not correlated with the parameters evaluated. In contrast, in the control group, serum vaspin levels were positively correlated with triglycerides (TG; r=0.45, P=0.02) and very low-density lipoprotein cholesterol (VLDL-C; r=0.42, P=0.03). Placental mRNA vaspin (0.60±0.32 vs 0.68±0.32, P=0.46) and protein (0.30±0.08 vs 0.39±0.26; P=0.33) levels in the GDM group did not differ significantly from those in the control group, but were negatively correlated with neonatal birth weight in the GDM group (r=-0.48, P=0.03; r=-0.88; P<0.01). Our findings indicated that vaspin may be an important adipokine involved in carbohydrate and lipid metabolism and may also play a role in fetal development.
  • Bilateral repetitive transcranial magnetic stimulation for
           treatment-resistant depression: a systematic review and meta-analysis of
           randomized controlled trials

    • Abstract: There has been concern regarding the use of controversial paradigms for repetitive transcranial magnetic stimulation (rTMS) to manage treatment-resistant depression (TRD). This meta-analysis assessed the efficacy of bilateral rTMS compared with unilateral and sham rTMS in patients with TRD. PubMed, Embase, CENTRAL, PsycINFO, Web of Science, EAGLE and NTIS databases were searched to identify relevant studies, and randomized controlled trials (RCTs) on bilateral rTMS for TRD patients were included. The response was defined as the primary outcome, and remission was the secondary outcome. Ten RCTs that included 634 patients met the eligibility criteria. The risk ratio (RRs) of both the primary and secondary outcomes of bilateral rTMS showed non-significant increases compared to unilateral rTMS (RR=1.01, P=0.93; odds ratio [OR]=0.77, P=0.22). Notably, the RR of the primary bilateral rTMS outcome was significantly increased compared to that for sham rTMS (RR=3.43, P=0.0004). The results of our analysis demonstrated that bilateral rTMS was significantly more effective than sham rTMS but not unilateral rTMS in patients with TRD. Thus, bilateral rTMS may not be a useful paradigm for patients with TRD.
  • Aspects of energetic substrate metabolism of in vitro and in
    bovine embryos

    • Abstract: Although the metabolism of early bovine embryos has not been fully elucidated, several publications have addressed this important issue to improve culture conditions for cattle reproductive biotechnologies, with the ultimate goal of producing in vitro embryos similar in quality to those developing in vivo. Here, we review general aspects of bovine embryo metabolism in vitro and in vivo, and discuss the use of metabolic analysis of embryos produced in vitro to assess viability and predict a viable pregnancy after transference to the female tract.
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