Browsing Biological Sciences by Title
Now showing items 1648-1667 of 3025
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Lean mass and associated factors in women with PCOS with different phenotypes
(2023) [Journal article]Although current evidence suggests increased risk of obesity, insulin resistance, and meta- bolic alterations in patients with polycystic ovary syndrome (PCOS), especially of a hyperan- drogenic phenotype, the impact of ... -
LEI0258 microsatellite variability and its relationship to B-F haplotypes in Brazilian (blue-egg Caipira) chickens
(2005) [Journal article]A total of 149 chickens from two different sources (one non-commercial, the other commercial) was tested for variability of the LEI0258 microsatellite. Fifty- three genotypes, explainable by 15 alleles, were found. There ... -
Leprosy in southern Brazil : a twenty-year epidemiological profile
(2017) [Journal article]Introduction: This study evaluated leprosy rates in Rio Grande do Sul, an area with a historically low prevalence. However, recent studies are lacking. Methods: Data extracted from a National Database were analyzed for ... -
Leptin and adiponectin in the female life course
(2011) [Journal article]Adipose tissue secretes a variety of adipokines, including leptin and adiponectin, which are involved in endocrine processes regulating glucose and fatty metabolism, energy expenditure, inflammatory response, immunity, ... -
Leptin receptor co-expression gene network moderates the effect of early life adversity on eating behavior in children
(2022) [Journal article]Leptin influences eating behavior. Exposure to early adversity is associated with eating behaviour disorders and metabolic syndrome, but the role of the leptin receptor on this relationship is poorly explored. We investigated ... -
Lesion of the subthalamic nucleus reverses motor deficits but not death of nigrostriatal dopaminergic neurons in a rat 6-hydroxydopamine-lesion model of Parkinson's disease
(2010) [Journal article]The objective of the present study was to determine whether lesion of the subthalamic nucleus (STN) promoted by N-methyl- D-aspartate (NMDA) would rescue nigrostriatal dopaminergic neurons after unilateral 6-hydroxydopamine ... -
Lesões de cárie proximais na dentição decídua : freqüência de lesões homólogas
(2006) [Journal article]O objetivo deste estudo transversal observacional foi avaliar a experiência de cárie na superfície proximal de molares decíduos quanto à ocorrência de comportamento bilateral e ao envolvimento de superfícies adjacentes. A ... -
Leukocyte imbalances in Mucopolysaccharidoses patients
(2023) [Journal article]Mucopolysaccharidoses (MPSs) are rare inherited lysosomal storage diseases (LSDs) caused by deficient activity in one of the enzymes responsible for glycosaminoglycans lysosomal degradation. MPS II is caused by pathogenic ... -
Levantamento do uso de medicamentos por estudantes do ensino médio em duas escolas de Porto Alegre, RS, Brasil
(2012) [Journal article]Estudo observacional foi realizado com estudantes de duas escolas de Ensino Médio, na cidade de Porto Alegre, RS (Brasil). Os dados foram obtidos por meio de questionário objetivo em sala de aula, após autorização da ... -
Life cycle assessment of beef cattle production in two typical grassland systems of southern Brazil
(2015) [Journal article]The importance of animal production in the overall context of human activity is undisputed and influences food supply, job security, income producing, as well as landscape and local ecosystems conservation. This relevance ... -
Life history of the Gall-Maker Eugeniamyia dispar Maia, Mendonça-Jr. & Romanowski, 1996 (Diptera, Cecidomyiidae)
(2002) [Journal article]The development of the galls of the midge Eugeniamyia dispar Maia, Mendonça-Jr. & Romanowski, 1996 (Diptera: Cecidomyiidae) was monitored weekly on its host plant, Eugenia uniflora (Myrtaceae). The work was carried out in ... -
Life-history of the South American darter, Characidium pterostictum (Crenuchidae) : evidence for small scale spatial variation in a piedmont stream
(2008) [Journal article]Este estudo compara a estrutura populacional e a reprodução do pequeno caraciforme, Characidium pterostictum, amostrado em locais sujeitos a diferentes efeitos de perturbações hidrológicas naturais (enxurradas). Os dados ... -
Lifelong exposure to a low-dose of the glyphosate-based herbicide RoundUp® causes intestinal damage, gut dysbiosis, and behavioral changes in mice
(2022) [Journal article]RoundUp® (RUp) is a comercial formulation containing glyphosate (N-(phosphono-methyl) glycine), and is the world’s leading wide-spectrum herbicide used in agriculture. Supporters of the broad use of glyphosate-based ... -
Liming as a means of reducing copper toxicity in black oats
(2018) [Journal article]Soils which are cultivated with grapevines have high available copper (Cu) content, which can be toxic to cover crops cohabiting vineyards, such as black oats. This study aimed to assess the effect of liming in reducing ... -
Linking dopamine neurotransmission and neurogenesis: the evolutionary history of the NTAD (NCAM1-TTC12-ANKK1-DRD2) gene cluster
(2012) [Journal article]Genetic studies have long suggested the important role of theDRD2 gene in psychiatric disorders and behavior. Further research has shown a conjoined effect of genes in the Chr11q22-23 region, which includes theNCAM1, TTC12, ... -
Lipases produced by yeasts : powerful biocatalysts for industrial purposes
(2007) [Journal article]The term “lipolytic enzymes” refers to the lipases and carboxylic ester hydrolases. Lipase production is widespread among yeasts, but few are capable of producing lipases with interesting characteristics and in sufficient ... -
Lipid peroxidation and total radical-trapping potential of the lungs of rats submitted to chronic and sub-chronic stress
(2004) [Journal article]Exposure to stress induces a cluster of physiological and behavioral changes in an effort to maintain the homeostasis of the organism. Long-term exposure to stress, however, has detrimental effects on several cell functions ... -
Lipid profile and antimicrobial activity of microbial oils from 16 oleaginous yeasts isolated from artisanal cheese
(2014) [Journal article]Microbial oil is becoming an alternative to the increasing cost of vegetable oils, and it can be used for many applications, as biodiesel production and food supplementation. In particular, oleaginous yeasts, being ... -
Lipopolysaccharide modulates astrocytic S100B secretion: a study in cerebrospinal fluid and astrocyte cultures from rats
(2011) [Journal article]Background: Inflammatory responses in brain are primarily mediated by microglia, but growing evidence suggests a crucial importance of astrocytes. S100B, a calcium-binding protein secreted by astrocytes, has properties of ...