Navegação Ciências Biológicas por Título
Resultados 1348-1367 de 3042
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Gestão de dunas costeiras : o uso de sistema de informações geográficas (SIG) na implantação de planos de gestão no litoral do Rio Grande do Sul, Brasil
(2014) [Artigo de periódico]Constituídas por grandes acumulações de areia, as dunas frontais são feições naturais da maioria das praias arenosas. As áreas de dunas são consideradas Áreas de Proteção Permanente (APPs) no Brasil, e, para a conservação ... -
Gestão Integrada de Unidade de Conservação Costeira - Parque Estadual de Itapeva, Torres-RS, Brasil
(2018) [Artigo de periódico]O Sistema Nacional de Unidades de Conservação foi criado para conservar ambientes frágeis e que necessitam de proteção no território Brasileiro. O município de Torres, localizado no litoral norte do Rio Grande do Sul, ... -
Gill parasites from Caranx latus (Perciformes, Carangidae) from Northeastern Coast of Brazil and a new host record to the monogenoid Protomicrocotyle mirabilis (Monogenoidea, Protomicrocotylidae) and Caligus chorinemi (Copepoda, Caligidae)
(2020) [Artigo de periódico]On the Brazilian coast, five species of Caranx are known - C. crysos, C. hippos, C. latus, C. lugubris and C. ruber - all of them of high commercial value. In the Northeastern region, C. hipposand C. latus have been ... -
Glial fibrillary acidic protein levels are associated with global histone H4 acetylation after spinal cord injury in rats
(2018) [Artigo de periódico]Emerging evidence has suggested global histone H4 acetylation status plays an important role in neural plasticity. For instance, the imbalance of this epigenetic marker has been hypothesized as a key factor for the development ... -
Glioma revisited : from neurogenesis and cancer stem cells to the epigenetic regulation of the niche
(2012) [Artigo de periódico]Gliomas are the most incident brain tumor in adults. This malignancy has very low survival rates, even when combining radioand chemotherapy. Among the gliomas, glioblastoma multiforme (GBM) is the most common and aggressive ... -
Global analysis of sRNA target genes in Mycoplasma hyopneumoniae
(2018) [Artigo de periódico]Background: Small RNAs (sRNAs) are noncoding molecules that regulate different cellular activities in several bacteria. The role of sRNAs in gene expression regulation is poorly characterized in the etiological agent of ... -
GLP-1 receptor signalling promotes β-cell glucose metabolism via mTOR-dependent HIF-1α activation
(2016) [Artigo de periódico]Glucagon-like peptide-1 (GLP-1) promotes insulin secretion from pancreatic β-cells in a glucose dependent manner. Several pathways mediate this action by rapid, kinase phosphorylation-dependent, but gene expression-independent ... -
A glucocorticoid-sensitive hippocampal gene network moderates the impact of early-life adversity on mental health outcomes
(2024) [Artigo de periódico]BACKGROUND: Early stress increases the risk for psychiatric disorders. Glucocorticoids are stress mediators that regulate transcriptional activity and morphology in the hippocampus, which is implicated in the pathophysiology ... -
Glutamate and synaptic plasticity systems and smoking behavior : results from a genetic association study
(2012) [Artigo de periódico]Smoking behavior is a multifactorial phenotype with significant heritability. Identifying the specific loci that influence smoking behavior could provide important etiological insights and facilitate the development of ... -
Glutathione levels in and total antioxidant capacity of Candida sp. cells exposed to oxidative stress caused by hydrogen peroxidase major article
(2012) [Artigo de periódico]Introduction: The capacity to overcome the oxidative stress imposed by phagocytes seems to be critical for Candida species to cause invasive candidiasis. Methods: To better characterize the oxidative stress response (OSR) ... -
Glutathione peroxidase induction protects Saccharomyces cerevisiae sod1deltasod2delta double mutants against oxidative damage
(2004) [Artigo de periódico]Saccharomyces cerevisiae mutants deficient in superoxide dismutase genes (sod1∆, sod2∆and the double mutant) were subjected to H2O2 stress in the stationary phase. The highest sensitivity was observed in the sod2∆mutant, ... -
Glycolysis-derived compounds from astrocytes that modulate synaptic communication
(2019) [Artigo de periódico]Based on the concept of the tripartite synapse, we have reviewed the role of glucosederived compounds in glycolytic pathways in astroglial cells. Glucose provides energy and substrate replenishment for brain activity, such ... -
Glycolytic pathway candidate markers in the prognosis of oral squamous cell carcinoma : a systematic review with meta-analysis
(2021) [Artigo de periódico]Molecular changes that affect mitochondrial glycolysis have been associated with the maintenance of tumor cells. Some metabolic factors have already been described as predictors of disease severity and outcomes. This ... -
Glycyrrhizin and glycyrrhetic acid : scaffolds to promising new pharmacologically active compounds
(2010) [Artigo de periódico]Glycyrrhizinic acid (GL), also known as glycyrrhizin, is a triterpene saponin, a natural product found on the root of Glycyrrhyza glabra L. (“licquorice”), used worldwide as sweetener and in the traditional eastern medicines. ... -
GM1-gangliosidosis : the caregivers' assessments of symptom impact and most important symptoms to treat
(2023) [Artigo de periódico]GM1-gangliosidosis (GM1) is a rare neurodegenerative disorder leading to early mortality and causing progressive decline of physical skills and cerebral functioning. No approved treatment for GM1 exists. In this study-the ... -
Gm and Inv allotypes of brazilian Cayapo indians
(1973) [Artigo de periódico]Data from 440 individuals belonging to four populations of Brazilian Cayapo Indians are reported. About 99% of them are Gm (1, 21) or Gm (1, 2, 21), while the frequency of sera with Inv (1) varies from 59%7 to 75%. These ... -
Going forward and back : the complex evolutionary history of the GPx
(2021) [Artigo de periódico]There is large diversity among glutathione peroxidase (GPx) enzymes regarding their function, structure, presence of the highly reactive selenocysteine (SeCys) residue, substrate usage, and reducing agent preference. ... -
Go with the flow: dams could have a far-reaching impact on fisheries in tropical rivers
(2021) [Artigo de periódico]Dams can disrupt the life cycle of Amazonian fish, impacting the livelihood of local communities. By interviewing fishers from many communities located downstream of the proposed dam, we showed that it may negatively affect ... -
Grades of brain arteriovenous malformations and risk of hemorrhage and death
(2019) [Artigo de periódico]Objective: To assess the relationship of the grade of unruptured and untreated Brain Arteriovenous Malformations (AVMs), with the risk of subsequent stroke and death during follow-up. Methods: This prospective study was ... -
Grãos de pólen anômalos no clone CP76 de Anacardium occidentale L. (Anacardiaceae)
(2001) [Artigo de periódico]Durante a investigação do desenvolvimento das anteras e grãos de pólen no clone CP76 de Anacardium occidentale foram observadas anomalias relacionadas ao desenvolvimento do gametófito masculino. Foram observados andrósporos ...