Viral Genes
Mostrando 1-12 de 3457 artigos, teses e dissertações.
-
1. Association between MBL2 haplotypes and dengue severity in children from Rio de Janeiro, Brazil
BACKGROUND Dengue is an arthropod-borne viral disease with a majority of asymptomatic individuals and clinical manifestations varying from mild fever to severe and potentially lethal forms. An increasing number of genetic studies have outlined the association between host genetic variations and dengue severity. Genes associated to viral recognition and ent
Mem. Inst. Oswaldo Cruz. Publicado em: 23/05/2019
-
2. Methylation of p16 ink4a promoter is independent of human papillomavirus DNA physical state: a comparison between cervical pre-neoplastic and neoplastic samples
BACKGROUND Epigenetic modifications in host cells, like p16 ink4a methylation, have been considered as putative complementary mechanisms for cancer development. Because only a small proportion of infected women develop cervical cancer, other factors might be involved in carcinogenesis, either independently or in association with high-risk human papillomavir
Mem. Inst. Oswaldo Cruz. Publicado em: 17/12/2018
-
3. Análise transcriptômica da expressão gênica diferencial revela um aumento nos níveis de COX2 durante a infecção in vitro por herpesvirus canino
RESUMO: O herpesvírus canino (CaHV-1) afeta os canídeos em todo o mundo, causando morte em neonatos e hospedeiros imunossuprimidos. A infecção aguda por CaHV-1 pode causar problemas reprodutivos, respiratórios e neurológicos em animais adultos. A patogênese viral e expressão de genes hospedeiros durante a infecção por CaHV-1 ainda não são bem com
Cienc. Rural. Publicado em: 25/10/2018
-
4. Could human coronavirus OC43 have co-evolved with early humans?
Abstract This paper reports on an investigation of the role of codon usage evolution on the suggested bovine-to-human spillover of Bovine coronavirus (BCoV), an enteric/respiratory virus of cattle, resulting in the emergence of the exclusively respiratory Human coronavirus OC43 (HCoV-OC43). Analyses based on full genomes of BCoV and HCoV-OC43 and on both hum
Genet. Mol. Biol.. Publicado em: 28/06/2018
-
5. Development and characterization of a packaging cell line for pseudo-infectious yellow fever virus particle generation
Abstract INTRODUCTION: Pseudo-infectious yellow fever viral particles (YFV-PIVs) have been used to study vaccines and viral packaging. Here, we report the development of a packaging cell line, which expresses the YFV prM/E proteins. METHODS: HEK293 cells were transfected with YFV prM/E and C (84 nt) genes to generate HEK293-YFV-PrM/E-opt. The cells were
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-02
-
6. Simple protocol for population (Sanger) sequencing for Zika virus genomic regions
BACKGROUND A number of Zika virus (ZIKV) sequences were obtained using Next-generation sequencing (NGS), a methodology widely applied in genetic diversity studies and virome discovery. However Sanger method is still a robust, affordable, rapid and specific tool to obtain valuable sequences. OBJECTIVE The aim of this study was to develop a simple and robu
Mem. Inst. Oswaldo Cruz. Publicado em: 27/11/2017
-
7. Construction and characterization of a recombinant yellow fever virus stably expressing Gaussia luciferase
ABSTRACT Yellow fever is an arthropod-borne viral disease that still poses high public health concerns, despite the availability of an effective vaccine. The development of recombinant viruses is of utmost importance for several types of studies, such as those aimed to dissect virus-host interactions and to search for novel antiviral strategies. Moreover, re
An. Acad. Bras. Ciênc.. Publicado em: 20/07/2017
-
8. Association of NR1I2 gene polymorphisms and time of progression to AIDS
BACKGROUND The time of progression towards AIDS can vary greatly among seropositive patients, and may be associated with host genetic variation. The NR1I2 (PXR) gene, a ligand-activated transcription factor, regulates the transcription immune pathway genes and can therefore be targets of viral replication mechanisms influencing time of progression to AIDS.
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-04
-
9. Translational control in plant antiviral immunity
Abstract Due to the limited coding capacity of viral genomes, plant viruses depend extensively on the host cell machinery to support the viral life cycle and, thereby, interact with a large number of host proteins during infection. Within this context, as plant viruses do not harbor translation-required components, they have developed several strategies to s
Genet. Mol. Biol.. Publicado em: 13/02/2017
-
10. Diferentes métodos de PCR em tempo real para detecção do vírus da pseudorraiva
RESUMO: Pseudorraiva (PR) é uma doença viral altamente contagiosa de grande importância sanitária e econômica na indústria suína. O objetivo deste estudo foi avaliar diferentes regiões genômicas, químicas de PCR em tempo real e equipamentos para o diagnóstico molecular de PR. Foram avaliados quatro genes (GB, GC, GE, gD), três diferentes produtos
Cienc. Rural. Publicado em: 12/01/2017
-
11. Influence of IL-6, IL-8, and TGF-β1 gene polymorphisms on the risk of human papillomavirus-infection in women from Pernambuco, Brazil
Human papillomavirus (HPV) infections are strongly associated with the development of cervical intraepithelial neoplasias and invasive cervical cancer. Polymorphisms in cytokine-encoding genes and behavioural cofactors could play an important role in protecting an individual against viral infections and cancer. Here, we investigated whether IL-6 -174 G>C, IL
Mem. Inst. Oswaldo Cruz. Publicado em: 24/10/2016
-
12. Falta de associação entre o polimorfismo genético do FTO, AKT1 e AKTIP e o sobrepeso e a obesidade infantis
Resumo Objetivo A obesidade é uma doença crônica sustentada por fatores ambientais e genéticos. Estudos epidemiológicos documentaram que maior ingestão de energia e um estilo de vida sedentário, bem como a contribuição genética, são forças por trás da epidemia de obesidade. O conhecimento sobre a interação entre os componentes genéticos e am
J. Pediatr. (Rio J.). Publicado em: 2016-10