Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 10
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A prospective study of hepatitis B virus markers in patients with chronic HBV infection from Brazilian families of Western and Asian origin BJMBR
Carrilho,F.J.; Ono-Nita,S.K.; Cardoso,R.A.; Cancado,E.L.R.; Pinho,J.R.R.; Alves,V.A.F.; Da Silva,L.C..
The purpose of the present study was to determine the frequency of hepatitis B virus (HBV) markers in families of HBsAg-positive patients with chronic liver disease. Serum anti-HBc, HBsAg and anti-HBs were determined by enzyme immunoassay and four subpopulations were considered: genetically related (consanguineous) and non-genetically related (non-consanguineous) Asian subjects and genetically related and non-genetically related Western subjects. A total of 165 and 186 relatives of Asian and Western origin were enrolled, respectively. The occurrence of HBsAg and anti-HBs antibodies was significantly higher (P < 0.0001) in family members of Asian origin (81.8%) than in family members of Western origin (36.5%). HBsAg was also more frequent among brothers...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hepatitis B; Familial clustering; HBsAg; Vertical transmission; Anti-HBc; Anti-HBs.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000900015
Imagem não selecionada

Imprime registro no formato completo
Coexistence of low levels of HBsAg and high levels of anti-HBs may increase risk of hepatocellular carcinoma in chronic hepatitis B patients with high HBV load BJID
Jin,Zi-zheng; Jin,Fang-fang; Liu,Xin; Liu,Ning; Wen,Feng; Lou,Jin-li.
ABSTRACT Objective: The clinical significance of coexistence of HBsAg/anti-HBs in chronic hepatitis B (CHB) patients remains controversial. This study was aimed to assess the association of this serological pattern with hepatocellular carcinoma (HCC) in patients with CHB. Methods: In this cross-section study, 206 CHB patients with coexistence of HBsAg/anti-HBs and 206 CHB patients with HBsAg alone were included to evaluate the risk of HCC development by logistic regression analysis. In addition, a retrospective cohort of 260 patients with CHB was recruited to estimate the cumulative incidence of HCC by Kaplan-Meier analysis. Results: The serological pattern of coexistence of HBsAg/anti-HBs, with high levels of ("High") HBsAg/low levels of ("Low")...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hepatitis B virus; HBsAg; Hepatocellular carcinoma.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000500343
Imagem não selecionada

Imprime registro no formato completo
Compositional changes of PBL population in patients with chronic hepatitis B virus infection BJID
Alireza,Khabiri; Mohsen,Abolhassani; Sudabeh,Aslani; Hiedeh,Darabi; Farideh,Bagheri; Mohammad-Hossein,Alimohammadian.
In this report we have analysed the peripheral blood lymphocyte of several patients with chronic hepatitis B virus infection with flow cytometry. Based on the presence and absence of the HBeAb, patients were divided into two groups. In both, all the patients were HBsAg positive with normal range of serum alanine aminotranferase (23.9 ± 17.8). We have found that the immunophenotypic profiles of patients were different from healthy donors with significant decrease in CD3+ T cells, specially CD8+ T cells and a siginificant increase in the CD19+ B cells. The differences were seen in other subset of T cells (CD4+) or NK cells (CD56+/CD16+ ) and HLA-DR markers were not significant. When the phenotypic profiles of both groups were compared with each other, such...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hepatitis B virus; Chronic HBV infection; HBsAg; HBeAg; HBeAb; Lymphocyte subset; Flow cytometry.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000600009
Imagem não selecionada

Imprime registro no formato completo
Hepatitis B virus surface antigen seroconversion in HIV-infected individual after pegylated interferon-alpha treatment: a case report J. Venom. Anim. Toxins incl. Trop. Dis.
Delicio,Adriane Maira; Abati,Paulo Afonso Martins; Vigani,Aline Gonzalez.
Hepatitis B virus (HBV) infects from 6 to 14% of HIV-infected individuals. Concurrent HIV/HBV infection occurs due to the overlapping routes of transmission, particularly sexual and parenteral. HIV-infected patients that have acute hepatitis B have six times greater risk of developing chronic hepatitis B, with higher viral replication, rapid progression to end-stage liver disease and shorter survival. The coinfection is also associated with poor response to hepatitis B treatment with interferon-alpha and increased liver toxicity to the antiretroviral therapy. Herein, we describe the case of a 35-year-old man who engages in sex with men and presented with newly diagnosed HIV-1, serological markers for acute hepatitis B and progression to chronic hepatitis B...
Tipo: Info:eu-repo/semantics/report Palavras-chave: HIV; Hepatitis B; HBsAg; Peginterferon.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992013000100503
Imagem não selecionada

Imprime registro no formato completo
Histocytological examination on organogenesis and somatic embryogenesis of HBsAg-transgenic cherry tomato mutant Phyton
Guan,Z-J; Guo,B; Huo,Y-L; Dai,J-K; Wei,Y-H.
The initiation and development of organogenic buds and somatic embryos in HBsAg-transgenic cherry tomato (Lycopersicum esculentum var. cerasiforme) mutant were studied histologically. The leaf explants of the mutant were cultured on Murashige &amp; Skoog (MS) basal medium supplemented with 6-BA 1.0 mg/L and IAA 0.05 mg/L for callus induction. Histological studies on the leaf explants of the mutant at various developmental stages revealed that organogenic buds first appeared in the axillary position of explants on the 14th cultured day, and then somatic embryos formed in the same mutant explants after 35 days of culture. Transmission electron microscopy and scanning electron microscopy indicated that there were significant changes in morphology and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histocytological; Organogenesis; Somatic embryogenesis; HBsAg; Transgenic; Cherry tomato; Mutant.
Ano: 2012 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000100008
Imagem não selecionada

Imprime registro no formato completo
Levels of interleukins 12 (IL-12) and 13 (IL-13), hepatitis B and C serology, and blood cultures among acute myeloid leukemia (AML) patients in Egypt J. Venom. Anim. Toxins incl. Trop. Dis.
RAA,Nour el deen; RA,Harfoush; MM,Elgharabawy; NA,Hamed; MG,Morsi.
There is an interest in the use of IL-12 as a possible anti-cancer drug to induce immune responses and anti-IL-13 formulations to treat the undesirable effects of IL-13. Thus, the present study aimed at analyzing IL-12 and IL-13 profiles, viral hepatitis serology and blood cultures in acute myeloid leukemia (AML) patients. Forty individuals (20 without septicemia - Group A, and 20 with septicemia - Group B) and 20 healthy controls were evaluated. Hepatitis B virus antigens (HBsAg) and hepatitis C virus antibodies (HCV Ab) were quantified using commercial ELISA kits. IL-12 and IL-13 levels were estimated in culture supernatant of mitogen-stimulated peripheral blood mononuclear cells by ELISA. Significantly low IL-12 values were observed among AML patients...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acute myeloid leukemia; IL-12; IL-13; HBsAg; HCV; ELISA.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000300009
Imagem não selecionada

Imprime registro no formato completo
Prevalence of HBV genotypes in South American immigrants affected by HBV-related chronic active hepatitis BJID
Palumbo,Emilio; Scotto,Gaetano; Faleo,Giuseppina; Cibelli,Donatella Concetta; Angarano,Gioacchino.
This study evaluated the prevalence of HBV infection in a population of South American immigrants in Italy and to determine in patients with detectable serum HBV-DNA the HBVgenotypes. Between April 2005 and April 2006 a total of 130 South American immigrants were tested for HBsAg. In HBsAg positive patients the biochemical and virological activity of infection and the possible presence of co-infections (HCV, HDV, HIV) were evaluated. In patients with detectable serum HBV DNA, the HBV genotype was determined by INNOLiPA. Among the 130 subjects tested, 14 (10.7%) resulted HBsAg positive. All were men, with a mean age of 22 years (range 19-37) and 12 (85.7 %) came from Brazil, while 2 (14.3%) came from Ecuador. All patients infected by HBV had elevated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HBV genotypes; Chronic hepatitis B; Immigrants; HBsAg; Viral genome.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000300002
Imagem não selecionada

Imprime registro no formato completo
Response predictors to treatment with pegylated interferon in chronic hepatitis B BJID
Ferreira,Paulo Roberto Abrão; Tenore,Simone de Barros.
The clinical and epidemiological importance of chronic B hepatitis is currently unquestionable as a cause of end-stage liver disease and hepatocellular carcinoma. Recently, predictors of treatment response of this disease have been studied, both before and during the course of medication. Therapy stopping rules have been proposed, which may be useful in patients presenting poor treatment tolerance. This review discusses the treatment response predictors usefulness, with emphasis on ALT, quantitative HBsAg and HBeAg, quantitative HBV-DNA and HBV genotype
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hepatitis B; HBsAg; HBeAg; HBV-DNA; Pegylated interferon.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000500017
Imagem não selecionada

Imprime registro no formato completo
Seroprevalence of hepatitis B and hepatitis C markers among children and adolescents in the south brazilian region: metropolitan area of Florianópolis, Santa Catarina BJID
Voigt,Andréia Royer; Strazer Neto,Miguel; Spada,Celso; Treitinger,Arício.
Hepatitis B and C are important causes of morbidity and mortality worldwide. In Brazil, according to the Ministry of Health, about 15% of population is infected by hepatitis B virus (HBV) and less than 1% by hepatitis C virus (HCV). Nevertheless, the age-specific prevalence of HBV and HCV markers remains unknown. This study aimed to determine the seroprevalence of HBV and HCV markers of infection and immunity in children and adolescents between 10 to 16 years old who live in the metropolitan area of Florianópolis, state of Santa Catarina, South of Brazil. Three hundred and eighty four individuals were enrolled in this study. Serological markers for HBV and HCV (HBsAg, total anti-HBc, anti-HBc IgM, anti-HBs and anti-HCV) were determined through...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HBV; HCV; HBsAg; Anti-HBs; Anti-HBc; Anti-HCV; Seroprevalence.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702010000100012
Imagem não selecionada

Imprime registro no formato completo
Seroprevalence of hepatitis B surface antigen and its correlation with risk factors among new recruits in Turkey BJID
Altay,Tulin; Uskun,Ersin; Akcam,Fusun Zeynep.
OBJECTIVES: The objective of this cross-sectional study was to determine seroprevalence of hepatitis B surface antigen and related risk factors among new recruits in a military unit in Turkey. METHODS: Eight thousand five hundred eighty-nine newly-recruited soldiers were enrolled in the study. Blood samples were drawn from them between January 2006 and December 2006 and ELISA technique was applied to the samples. In addition, questions on the risk factors of hepatitis B exposure were asked to the participants in the survey. RESULTS: The results demonstrated that HBsAg seroprevalence was 2.8%. Further survey results indicated that seropositivity increased depending on certain risk factors. In multiple regression analysis, significant correlations were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seroprevalence; Hepatitis B surface antigen; HBsAg.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000400005
Registros recuperados: 10
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional