Browsing Biological Sciences by Title
Now showing items 2514-2533 of 3025
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SARS-CoV-2 infection with bilateral intralabyrinthine hemorrhage
(2022) [Journal article]A 47-year-old woman presented with the complaint of sudden hearing loss associated with vertigo. Serological testing was positive for IgM and negative for IgG COVID-19 antibodies, with no other associated factors. Magnetic ... -
Saúde pública no primeiro e terceiro mundos : desafios e perspectivas
(2002) [Journal article]O direito universal à saúde está bem estabelecido, mas entre declarações de propósitos e a realidade existem abismos difíceis de transpor. O desenvolvimento científico-tecnológico desigual tem acentuado as distâncias entre ... -
Scanning electron microscopy and machine learning reveal heterogeneity in capsular morphotypes of the human pathogen Cryptococcus spp.
(2020) [Journal article]Phenotypic heterogeneity is an important trait for the development and survival of many microorganisms including the yeast Cryptococcus spp., a deadly pathogen spread worldwide. Here, we have applied scanning electron ... -
Scrapie diagnosis in a goat and four Santa Inês sheep from the same herd in Brazil
(2015) [Journal article]Scrapie is a fatal and progressive transmissible spongiform encephalopathy (TSE) of natural occurrence in sheep and goats. The suspicion of scrapie may be based on clinical signs; however, the detection of pathological ... -
Screening antimycobacterial activity of Baccharis dracunculifolia, Centella asiatica, Lantana camara and Pterodonemarginatus
(2015) [Journal article]A investigação permanente de novas drogas antimicobacterianas é necessária no programa de erradicação da tuberculose e de outras doenças relacionadas com micobactérias. O objetivo deste estudo foi buscar novas fontes de ... -
Screening for germline BRCA1, BRCA2, TP53 and CHEK2 mutations in families at-risk for hereditary breast cancer identified in a population-based study from Southern Brazil
(2016) [Journal article]In Brazil, breast cancer is a public health care problem due to its high incidence and mortality rates. In this study, we investigated the prevalence of hereditary breast cancer syndromes (HBCS) in a population-based cohort ... -
Screening for organic acidurias and aminoacidopathies in high-risk Brazilian patients : eleven-year experience of a reference center
(2019) [Journal article]Organic acidurias and aminoacidopathies are groups of frequent inborn errors of metabolism (IEMs), which are caused by mutations in specific genes that lead to loss of protein/enzyme or transport function with important ... -
Searching for ancient balanced polymorphisms shared between Neanderthals and Modern Humans
(2018) [Journal article]Hominin evolution is characterized by adaptive solutions often rooted in behavioral and cognitive changes. If balancing selection had an important and long-lasting impact on the evolution of these traits, it can be ... -
Seasonal abundance and mortality of Oebalus poecilus (Dallas) (Hemiptera : Pentatomidae) in a hibernation refuge
(2006) [Journal article]Oebalus poecilus (Dallas) é praga importante do arroz irrigado no Rio Grande do Sul, Brasil. Este inseto hiberna durante os meses mais frios em refúgios como o folhedo de bambu. Este estudo objetivou elucidar a hibernação ... -
Seazonal and diel variation in the fish assemblage of a neotropical delta in southern Brazil
(2010) [Journal article]O objetivo deste estudo foi identificar o padrão de variação sazonal e circadiana e os principais fatores abióticos que influenciam a estrutura da assembleia de peixes do delta do rio Jacuí, região sul do Brasil. Foram ... -
Secoisolariciresinol diglucoside abrogates oxidative stress-induced damage in cardiac iron overload condition
(2015) [Journal article]Cardiac iron overload is directly associated with cardiac dysfunction and can ultimately lead to heart failure. This study examined the effect of secoisolariciresinol diglucoside (SDG), a component of flaxseed, on iron ... -
Secondary metabolite gene clusters in the entomopathogen fungus Metarhizium anisopliae : genome identification and patterns of expression in a cuticle infection model
(2016) [Journal article]Background: The described species from the Metarhizium genus are cosmopolitan fungi that infect arthropod hosts. Interestingly, while some species infect a wide range of hosts (host-generalists), other species infect only ... -
Secondary structure of nrDNA Internal Transcribed Spacers as a useful tool to align highly divergent species in phylogenetic studies
(2017) [Journal article]Recently, it has been suggested that internal transcribed spacer (ITS) sequences are under selective constraints to preserve their secondary structure. Here, we investigate the patterns of the ITS nucleotide and secondary ... -
Secretion of five extracellular enzymes by strains of chromoblastomycosis agents
(2008) [Journal article]As atividades gelatinase, urease, lipase, fosfolipase e DNase de 11 agentes da cromoblastomicose constituídos por amostras de Fonsecaea pedrosoi, F. compacta, Phialophora verrucosa, Cladosporium carrionii, Cladophialophora ... -
Sedation effect of midazolam, ketamine, and butorphanol on spectral Doppler ultrasound values in femoral and large abdominal arteries in cats
(2019) [Journal article]Real time information about direction and type of blood flow can be obtained with Doppler ultrasound. In the literature it was not found data obtained with this method from celiac and cranial mesenteric artery in cats. ... -
Seeing the forest through many trees: multi-taxon patterns of phylogenetic diversity in the Atlantic Forest hotspot
(2020) [Journal article]We combine phylogenetic and point locality data from selected lineages of the Atlantic Forest flora and fauna to compare spatial patterns of biodiversity sustained by the current configuration of forest remnants to a ... -
Seizures induced by pentylenetetrazole in the adult zebrafish : a detailed behavioral characterization
(2013) [Journal article]Pentylenetetrazole (PTZ) is a common convulsant agent used in animal models to investigate the mechanisms of seizures. Although adult zebrafish have been recently used to study epileptic seizures, a thorough characterization ... -
Selective screening of 18,000 high-risk brazilian patients for the detection of inborn errors of metabolism
(2001) [Journal article]OBJECTIVE: The number of diagnosed inborn errors of metabolism (IEM) is growing constantly due to the improvement and widespread availability of analytical techniques. In 1982, a laboratory for the detection of IEM was set ...