Browsing Biological Sciences by Title
Now showing items 1-20 of 2831
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1,25-dihydroxyvitamin D3 exerts neuroprotective effects in an ex vivo model of mild hyperhomocysteinemia
(2016) [Journal article]Elevated plasma homocysteine (Hcy) levels have been detected in patients with various neurodegenerative conditions. Studies of brain tissue have revealed that hyperhomocysteinemia may impair energy metabolism, resulting ... -
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37 years of scientific activity in a Biochemistry Department in Brazil – patterns of growth and factors leading to increased productivity
(2011) [Journal article]Scientific activity in Brazil has experienced an accelerated growth in the past decades, with an increase in productivity that greatly surpasses the international average. This growth has occurred mostly at the expense of ... -
ABCB1 C1236T, G2677T/A and C3435T polymorphisms in systemic lupus erythematosus patients
(2008) [Journal article]P-glycoprotein (Pgp), the ABCB1 gene product, acts as an efflux pump that transports a large variety of substrates and is a mechanism of cell protection against xenobiotics. An increasing number of studies have shown that ... -
Absence of A3Z3-related hypermutations in the env and vif proviral genes in FIV naturally infected cats
(2018) [Journal article]Apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 3 (APOBEC3; A3) proteins comprise an important family of restriction factors that produce hypermutations on proviral DNA and are able to limit virus replication. ... -
Absence of sibutramine effect on spontaneous anxiety in rats
(2010) [Journal article]A sibutramina tem sido descrita como um fármaco recomendado para o tratamento da obesidade, uma vez que tem a capacidade de inibir a recaptação de serotonina e noradrenalina no sistema nervoso central, aumentando assim o ... -
Abundance and richness of Arctiinae moths throughout the night in a Cerrado area
(2021) [Journal article]The main goal of this work was to investigate how the abundance and richness of Arctiinae moths varies over time, during the night. Specifically, we analyzed the following questions: (1) Is there a relationship between ... -
Abundance of Conepatus chinga (Carnivora, Mephitidae) and other medium-sized mammals in grasslands of southern Brazil
(2012) [Journal article]Entre janeiro de 2007 e dezembro de 2010 a abundância de mamíferos de médio porte foi estudada, com especial ênfase no zorrilho Conepatus chinga (Molina, 1782) em quatro locais no sul do Brasil. Neste estudo, foi utilizada ... -
Ação de antissépticos e desinfetantes de uso doméstico sobre Enterococcus sp. isolados do arroio Dilúvio, RS, Brasil
(2019) [Journal article]O arroio Dilúvio, localizado em uma área central de Porto Alegre, recebe diariamente lixo e esgoto doméstico de vários bairros da cidade, que sem o tratamento adequado poderão ser fonte de diferentes microrganismos, entre ... -
Access to treatment for phenylketonuria by judicial means in Rio Grande do Sul, Brazil
(2015) [Journal article]Treatment of phenylketonuria (PKU) includes the use of a metabolic formula which should be provided free of charge by the Unified Health System (SUS). This retrospective, observational study sought to characterize judicial ... -
Acciones para la salud general y bucal con pacientes psiquiátricos en talleres terapéuticos
(2011) [Journal article]De acuerdo con el Ministerio de Salud de Brasil, el 3% de la población general presenta trastornos psiquiátricos severos y persistentes y un 12% necesita de algún tipo de tratamiento psiquiátrico, sea continuo o eventual. ... -
Acidúrias orgânicas : diagnóstico em pacientes de alto risco no Brasil
(2001) [Journal article]Objetivo: o objetivo deste trabalho foi o de verificar a prevalência das acidúrias orgânicas em pacientes brasileiros de alto risco. Métodos: técnicas laboratoriais para a detecção e quantificação de ácidos orgânicos por ... -
Acoustic measures of Brazilian transgender women's voices : a case–control study
(2021) [Journal article]Objective: This study aims to compare the acoustic vocal analysis results of a group of transgender women relative to those of cisgender women. Methods: Thirty transgender women between the ages of 19 and 52 years old ... -
Activation of adenosine A1 receptors alters behavioral and biochemical parameters in hyperthyroid rats
(2006) [Journal article]Adenosine acting on A1 receptors has been related with neuroprotective and neuromodulatory actions, protection against oxidative stress and decrease of anxiety and nociceptive signaling. Previous studies demonstrated an ... -
Actividad antimicrobiana de aceite esencial de Origanum vulgare L. ante bacterias aisladas en leche de bovino
(2011) [Journal article]Introducción: la mastitis bovina es el mayor problema en la producción lechera, causada principalmente por bacterias grampositivas. La búsqueda de principios activos que actúen en esos microrganismos es creciente, sobre ... -
Activity and expression of ecto-5'-nucleotidase/CD73 are increased by thyroid hormones in vascular smooth muscle cells
(2006) [Journal article]Extracellular nucleotides ATP, ADP, AMP and adenosine are well known signaling molecules of the cardiovascular system that are involved in several physiological processes: cell proliferation, platelet aggregation, inflammatory ... -
Activity and expression of ecto-nucleotide pyrophosphate/phosphodiesterases in a hepatic stellate cell line
(2009) [Journal article]Nucleotides and nucleosides represent an important and ubiquitous class of molecules that interact with specific receptors, regulate a variety of activities within the liver, and play a role in the pathogenesis of hepatic ... -
Activity of the antimicrobial peptide P34 against bovine alphaherpesvirus type 1
(2017) [Journal article]Previous studies have demonstrated the antimicrobial activity of the peptide P34. In this study, the antiviral potential of P34 and the in vitro mechanism of action were investigated against bovine alphaherpesvirus type 1 ... -
Acute and chronic hypermethioninemia alter Na+,K+-ATPase activity in rat hippocampus : prevention by antioxidants
(2011) [Journal article]In the current study we initially investigated the influence of antioxidants (vitamins E plus C) on the effect mediated by acute and chronic administration of methionine (Met) on Na+,K+-ATPase activity in rat hippocampus. ...
