Results 81 to 90 of about 1,910,456 (249)

Recent sylvatic yellow fever virus transmission in Brazil: the news from an old disease

open access: yesVirology Journal, 2020
Yellow fever (YF) is an acute viral disease, affecting humans and non-human primates (NHP), caused by the yellow fever virus (YFV). Despite the existence of a safe vaccine, YF continues to cause morbidity and mortality in thousands of people in Africa ...
Natalia Ingrid Oliveira Silva   +6 more
doaj   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

O VÍRUS INFLUENZA: REVISÃO NARRATIVA DA LITERATURA

open access: yes, 2020
Introdução: o vírus Influenza é um patógeno respiratório humano que causa infecções sazonais e endêmicas e pandemias periódicas. No século XX, a pior pandemia registrada foi em 1918 que matou aproximadamente milhões de pessoas em todo o mundo. É um vírus
Fernanda, Gatzke; Universidade Regional Integrada do Alto Uruguai e das Missões, Campus de Santo Ângelo   +1 more
core   +1 more source

Species composition and fauna distribution of mosquitoes (Diptera: Culicidae) and its importance for vector-borne diseases in a rural area of Central Western - Mato Grosso, Brazil

open access: yesEntomoBrasilis, 2017
. This study describes ecological data obtained in a rural area in the State of Mato Grosso, including the insects belonging to the family Culicidae, especially those framed as potential vectors of tropical diseases.
Fábio Alexandre Leal-Santos   +10 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Análise dos conteúdos de vírus e bactérias em livros didáticos de ciências utilizados por escolas da rede municipal de ensino de Florianópolis/SC/ [PDF]

open access: yes, 2013
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.O presente trabalho estabelece critérios e analisa os conteúdos relativos a vírus e bactérias em três coleções de livros didáticos integrantes do Programa ...
Lemos, Gilmara David
core  

Seleção assistida com uso de marcador molecular para resistência a potyvírus em pimentão

open access: yesPesquisa Agropecuária Brasileira, 2012
O objetivo deste trabalho foi determinar a presença do alelo Pvr4, que confere resistência contra o PepYMV (Pepper yellow mosaic virus), em genótipos de pimentão comunmente encontrados no mercado brasileiro, com uso de um marcador molecular codominante ...
Douglas Willian Nogueira   +5 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Presença do vírus da síndrome da mancha branca em crustáceos decápodes silvestres em lagoas costeiras no Sul do Brasil

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2012
A presença do vírus da síndrome da mancha branca (em inglês WSSV) nas principais espécies de camarões, siris e caranguejos de cinco lagoas que recebem o efluente de fazendas afetadas pela enfermidade foi detectada por nested PCR, e inclusões virais nos ...
S.W. Costa   +4 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

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