Navegação Ciências Biológicas por Título
Resultados 2471-2490 de 3044
-
Restriction-modification systems in Mycoplasma ssp
(2007) [Artigo de periódico]Restriction and Modification (R-M) systems are present in all Mycoplasma species sequenced so far. The presence of these genes poses barriers to gene transfer and could protect the cell against phage infections. The number ... -
Resveratrol abrogates the Temozolomide-induced G2 arrest leading to mitotic catastrophe and reinforces the Temozolomide-induced senescence in glioma cells
(2013) [Artigo de periódico]Background: Temozolomide (TMZ) is the most widely used drug to treat glioblastoma (GBM), which is the most common and aggressive primary tumor of the Central Nervous System and one of the hardest challenges in oncotherapy. ... -
Resveratrol and resveratrol-hydroxypropyl-β-cyclodextrin complex recovered the changes of creatine kinase and Na+, K+-ATPase activities found in the spleen from streptozotocin-induced diabetic rats
(2019) [Artigo de periódico]Type 1 diabetes (T1D) is the result of the selective destruction of the pancreatic β-cells by T cells of the immune system. Although spleen is a secondary lymphoid organ, it is also involved in the T1D pathogenesis. However, ... -
Resveratrol derivatives as potential treatments for Alzheimer's and Parkinson's disease
(2020) [Artigo de periódico]Neurodegenerative diseases are characterized by the progressive loss of neurons in different regions of the nervous system. Alzheimer’s disease (AD) and Parkinson’s disease (PD) are the two most prevalent neurodegenerative ... -
Resveratrol prevents ammonia toxicity in astroglial cells
(2012) [Artigo de periódico]Ammonia is implicated as a neurotoxin in brain metabolic disorders associated with hyperammonemia. Acute ammonia toxicity can be mediated by an excitotoxic mechanism, oxidative stress and nitric oxide (NO) production. ... -
Resveratrol prevents cellular and behavioral sensory alterations in the animal model of autism induced by valproic Acid
(2018) [Artigo de periódico]Autism spectrum disorder (ASD) is characterized by impairments in both social communication and interaction and repetitive or stereotyped behaviors. Although its etiology remains unknown, genetic and environmental risk ... -
Resveratrol prevents cytoarchitectural and interneuronal alterations in the valproic acid rat model of autism
(2022) [Artigo de periódico]Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder characterized by several alterations, including disorganized brain cytoarchitecture and excitatory/inhibitory (E/I) imbalance. We aimed to analyze ... -
Resveratrol protects C6 astrocyte cell line against hydrogen peroxide-induced oxidative stress through heme oxygenase 1
(2013) [Artigo de periódico]Resveratrol, a polyphenol presents in grapes and wine, displays antioxidant and anti-inflammatory properties and cytoprotective effect in brain pathologies associated to oxidative stress and neurodegeneration. In previous ... -
Retenção e disponibilidade de água às plantas, em solo sob plantio direto e preparo convencional
(2009) [Artigo de periódico]Teve-se, neste trabalho, como função principal, avaliar a retenção de água no solo e sua disponibilidade às plantas, em plantio direto (PD) e preparo convencional (PC). O estudo foi conduzido em Eldorado do Sul, Brasil, ... -
Retinoblastoma in a pediatric oncology reference center in southern brazil
(2016) [Artigo de periódico]Background: Retinoblastoma (Rb) is the most common intraocular tumor diagnosed in children in Brazil. However, detailed information is lacking regarding patient clinical demographics. This study aimed to determine the ... -
Retinol-induced changes in the phosphorylation levels of histones and high mobility group proteins from sertoli cells
(2000) [Artigo de periódico]Chromatin proteins play a role in the organization and functions of DNA. Covalent modifications of nuclear proteins modulate their interactions with DNA sequences and are probably one of the multiple factors involved in ... -
A retrospective study of small animal poisoning at the Veterinary Medical Teaching Hospital from South Region of Brazil
(2018) [Artigo de periódico]Background: Poisoning cases are a challenge for the veterinary practitioner, since many agents can be involved. The incomplete patient history associated with advanced poisoning stage often leads to death. Since lacking ... -
Reverse engineering of Ewing Sarcoma regulatory network uncovers PAX7 and RUNX3 as master regulators associated with good prognosis
(2021) [Artigo de periódico]Ewing Sarcoma (ES) is a rare malignant tumor occurring most frequently in adolescents and young adults. The ES hallmark is a chromosomal translocation between the chromosomes 11 and 22 that results in an aberrant transcription ... -
Reverse engineering the neuroblastoma regulatory network uncovers MAX as one of the master regulators of tumor progression
(2013) [Artigo de periódico]Neuroblastoma is the most common extracranial tumor and a major cause of infant cancer mortality worldwide. Despite its importance, little is known about its molecular mechanisms. A striking feature of this tumor is its ... -
Reviewing the history of HIV-1 : spread of subtype B in the americas
(2011) [Artigo de periódico]The dispersal of HIV-1 subtype B (HIV-1B) is a reflection of the movement of human populations in response to social, political, and geographical issues. The initial dissemination of HIV-1B outside Africa seems to have ... -
A review of the Cis-Andean species of Hemibrycon Günther(Teleostei: Characiformes: Characidae: Stevardiinae), with description of two new species
(2010) [Artigo de periódico]As espécies de Hemibrycon que ocorrem a leste das Cordilheiras dos Andes são revisadas com base na análise do material tipo e exemplares adicionais. Nove espécies são redescritas: H. beni da bacia do río Beni, Bolívia; H. ... -
Review of Thoreyella Spinola with the description of two new species from Brazil (Heteroptera, Pentatomidae)
(2011) [Artigo de periódico]Neste trabalho, o gênero Thoreyella Spinola é revisado com descrições detalhadas das quatro espécies conhecidas (T. brasiliensis Spinola, 1850, T. trinotata Berg, 1878, T. cornuta Berg, 1883 e T. taurus Jensen-Haarup, 1931) ... -
Revisão do gênero Antiteuchus Dallas (Heteroptera, Pentatomidae, Discocephalinae)
(2006) [Artigo de periódico]Revisão do gênero Antiteuchus Dallas (Heteroptera, Pentatomidae, Discocephalinae). O gênero Antiteuchus Dallas, 1851 com 46 espécies descritas é revisado; as espécies são redescritas com base na morfologia externa da ... -
Revisão do gênero Runibia (Heteropter, Pentatomidae, Pentatomini)
(2001) [Artigo de periódico]Runibia Stål, 1861 is redescribed, as well as the species R. dallasi Rider, 1998, R. decorata (Dallas, 1851), R. discoidea (Fabricius, 1787), R. euopta (Walker, 1867) and R. perspicua (Fabricius, 1798). A new species, R. ... -
Revisão e análise cladística de Serdia Stal (Heteroptera, Pentatomidae, Pentatomini)
(2005) [Artigo de periódico]Treze espécies são hoje incluídas no gênero: S. apicicornis, Stål, 1860; S. beckerae Thomas & Rolston, 1985; S. calligera Stål, 1860; S. concolor Ruckes, 1958; S. costalis Ruckes, 1958; S. delphis Thomas & Rolston, 1985; ...