Navegação Ciências Biológicas por Título
Resultados 2003-2022 de 3044
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A novel protocol for the isolation of fungal extracellular vesicles reveals the participation of a putative scramblase in polysaccharide export and capsule construction in Cryptococcus gattii
(2019) [Artigo de periódico]Regular protocols for the isolation of fungal extracellular vesicles (EVs) are time-consuming, hard to reproduce, and produce low yields. In an attempt to improve the protocols used for EV isolation, we explored a model ... -
Novo estudo sugere que altos níveis de vitamina D não protegem contra a infecção por SARS-CoV-2
(2021) [Artigo de periódico] -
Um novo gênero de Ochlerini do sul do Brasil (Heteroptera, Pentatomidae, Discocephalinae)
(2001) [Artigo de periódico]The new monotypic genus Ocellatocoris and its type species Ocellatocoris dasys, sp. nov. are described from Santa Catarina, Brazil. -
Novos desafios impostos pela pandemia de SARS-CoV-2 na China
(2023) [Artigo de periódico] -
NTPDase, 5′-nucleotidase and adenosine deaminase activities and purine levels in serum of sickle cell anemia patients
(2018) [Artigo de periódico]Sickle cell anemia (SCA) is a hereditary disorder that is characterized by tendency of hemoglobin molecules within the erythrocytes to polymerize under hypoxia conditions, deform the red cells, and promote vaso-occlusion ... -
Nuanced qualitative trait approaches reveal environmental filtering and phylogenetic constraints on lichen communities
(2022) [Artigo de periódico]We propose that a qualitative trait approach based on more detailed nuanced traits may reveal previously overlooked patterns, especially when combined with phylogenetic perspectives. By sampling epiphytic lichens and using ... -
Nuclear factor erythroid-2-related factor 2 signaling in the neuropathophysiology of inherited metabolic disorders
(2021) [Artigo de periódico]Inherited metabolic disorders (IMDs) are rare genetic conditions that affect multiple organs, predominantly the central nervous system. Since treatment for a large number of IMDs is limited, there is an urgent need to find ... -
Nuclear Morphometric Analysis (NMA) : screening of senescence, apoptosis and nuclear irregularities
(2012) [Artigo de periódico]Several cellular mechanisms affect nuclear morphology which can therefore be used to assess certain processes. Here, we present an analytic tool to quantify the number of cells in a population that present characteristics ... -
Nutritional composition of Eragrostis teff and its association with the observed antimutagenic effects
(2019) [Artigo de periódico]Eragrostis teff is an Ethiopian native grass plant ( Poaceae or Gramineae family) whose importance as a crop grain has increased in recent years. The aim of this study is to analyze the nutritional composition of its seeds ... -
Nutrition in menopausal women : a narrative review
(2021) [Artigo de periódico]Among the various aspects of health promotion and lifestyle adaptation to the postmenopausal period, nutritional habits are essential because they concern all women, can be modified, and impact both longevity and quality ... -
Nymphalidae, Papilionidae and Pieridae (Lepidoptera: Papilionoidea) of the Serra do Sudeste, Rio Grande do Sul, Brazil
(2008) [Artigo de periódico] -
Nymphalidae, Papilionidae e Pieridae (Lepidoptera, Papilionoidea) da serra do sudeste do Rio Grande do Sul, Brasil
(2008) [Artigo de periódico]Visando contribuir para conhecimento sistematizado da composição e distribuição da fauna de borboletas da região Sudeste do Rio Grande do Sul, entre abril de 2003 e janeiro de 2004, foram realizadas expedições para cinco ... -
Obesity drives adipose-derived stem cells into a senescent and dysfunctional phenotype associated with P38MAPK/NF-KB axis
(2023) [Artigo de periódico]Background: Adipose-derived stem cells (ADSC) are multipotent cells implicated in tissue homeostasis. Obesity represents a chronic inflammatory disease associated with metabolic dysfunction and age-related mechanisms, with ... -
Obituary: Albano Schwarzbold (1941-2019)
(2020) [Artigo de periódico] -
Observações sobre a nidificação e desenvolvimento de Chrysemys dorbigni (Dumeril & Bibron, 1835) (Testudines. Emydinae) na Estação Ecológica do Taim, Rio Grande do Sul
(1982) [Artigo de periódico]Chrysemys dorbigni is a common diurna/ turt/e in the Taim Ec%gical Station. Though females may choose nesting sites in the sam e area they do it isolately, not in groups. Data on female nesting si te se/ection, building ... -
Obstrução intestinal por tricobezoar em um cão : relato de caso
(2019) [Artigo de periódico]Tricobenzoares são concreções de pelos formados no trato digestório, estando relacionada a alotriofagia. O corpo estranho causa principalmente vômito, regurgitação, tenesmo e pode levar a um quadro de obstrução intestinal. ... -
Obstructive sleep apnea, detected by the Berlin Questionnaire: an associated risk factor for coronary artery disease =Risco de apneia obstrutiva do sono detectado pelo Questionário de Berlim está associado com doença arterial coronariana
(2012) [Artigo de periódico]Obstructive sleep apnea (OSA), a risk factor for coronary artery disease, remains under diagnosed. We investigated if OSA identified by the Berlin Questionnaire (BQ) is associated with the risk of coronary artery disease. ... -
Obtenção do gangliosídio GM3 de baço de cachorro
(1993) [Artigo de periódico]Gangliosídios são glicolipídios que possuem em sua estrutura obrigatoriamente um derivado de ácido siálico. Estes compostos existem em grande quantidade nas membranas plasmáticas das células, exercem papel importante nos ... -
Occupational exposure of workers to pesticides : toxicogenetics and susceptibility gene polymorphisms
(2015) [Artigo de periódico]Farm workers are often exposed to pesticides, which are products belonging to a specific chemical group that affects the health of agricultural workers and is mostly recognized as genotoxic and carcinogenic. The exposure ... -
Occupational pesticide exposure and the risk of death in patients with Parkinson’s disease : an observational study in southern Brazil
(2020) [Artigo de periódico]Background: Multiple studies have suggested that various pesticides are associated with a higher risk of developing Parkinson’s disease (PD) and may influence the progression of the disease. However, the evidence regarding ...