FATIMA MITIKO TENGAN
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina - Docente
LIM/47 - Laboratório de Hepatologia por Vírus, Hospital das Clínicas, Faculdade de Medicina - Líder
LIM/47 - Laboratório de Hepatologia por Vírus, Hospital das Clínicas, Faculdade de Medicina - Líder
4 resultados
Resultados de Busca
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- Hepatitis C Among People Who Inject Drugs (PWID) in Latin America and the Caribbean: A Meta-Analysis of Prevalence Over Three Decades(2023) MAGRI, Mariana Cavalheiro; MANCHIERO, Caroline; DANTAS, Bianca Peixoto; NUNES, Arielle Karen Da Silva; PRATA, Thamiris Vaz Gago; DOMINGOS, Dayse Evelly Alexandre; NASCIMENTO, Gabrielly Dos Santos; ALVAREZ, Maria Stella Montanha; BERNARDO, Wanderley Marques; TENGAN, Fatima MitikoObjective: People who inject drugs (PWID) are known to be more susceptible to infections such as hepatitis C virus (HCV). This systematic review and meta-analysis aimed to estimate the prevalence of hepatitis C among PWID in Latin America and the Caribbean (LAC). Method: The MEDLINE, Embase, and LILACS databases were searched without language restriction from inception to 2021. Articles were screened based on titles and abstracts. After reading the full texts, the articles were selected based on eligibility criteria. Results: Of the 486 identified publications, 123 full texts were assessed, and 23 studies with a mean quality score of 7.2 were included. A total of 11,419 PWID were included in the meta-analysis, and the estimated overall prevalence of hepatitis C among PWID in LAC was 57.0%, which was higher than the United Nations Office on Drugs and Crime global prevalence of 50.2%. In meta-analyses of subgroups divided according to the risk of exposure to HCV infection (in addition to the imminent risk of injected drugs), the estimated prevalence of hepatitis C in PWID in the lower-risk population (general) was 57.0%. The prevalence of hepatitis C in PWID who were infected with HIV was 61.0%. The estimated hepatitis C prevalence was also assessed for three periods: in 1991-2000, it was 59.0%; in 2001-2010, it was 63.0%; and in 2011-2020, it was 48.0%. Conclusions: The high estimated prevalence of hepatitis C in LAC reinforces the need for increased diagnostic efforts, strategies for treating drug addiction and hepatitis C, and harm reduction policies that target PWID.
- Seroprevalence of SARS-CoV-2 in Brazil: A systematic review and meta-analysis(2023) FIGUEIREDO, Gerusa Maria; TENGAN, Fatima Mitiko; CAMPOS, Sergio Roberto; LUNA, Expedito JoseObjectives: To summarize the data on SARS-CoV-2 seroprevalence surveys conducted in Brazil before the introduction of vaccines Methods: The authors conducted a systematic review and meta-analysis on the seroprevalence of SARS-CoV-2 infection in Brazil. The present review followed the PRISMA guidelines. The authors searched Medline, Embase, and LILACS databases for serologic surveys conducted in the Brazilian population, in the period from 01/10/ 2019 to 07/11/2021, without language restrictions. The authors included studies that presented data concerning SARS-CoV-2 antibodies seroprevalence in Brazil and had a sample size & GE;50 individuals. Considering the expected heterogeneity between studies, all analyses were performed using the random effects model, and heterogeneity was assessed using the I2 statisticResults: Of 586 publications identified in the initial searches, 54 were included in the review and meta-analysis, which contained the results of 135 surveys, with 336,620 participants. The estimated seroprevalence was 11.0%, ranging from 1.0% to 83.0%, with a substantial heterogeneity (I2 = 99.55%). In subgroup analyses, the authors observed that the prevalence of SARS-CoV-2 antibodies was 13.0% in blood donors, 9.0% in the population-based surveys, 13% in schoolchildren, and 11.0% in healthcare workers.Conclusions: Seroprevalence increases over time. Large differences were observed among the regions of the country. It was higher in the Northern region, decreasing towards the South. The present results may contribute to the analysis of the spread of SARS-CoV-2 infection in the Brazilian population before vaccination, one of the factors that may be influencing the clinical presentation of COVID-19 cases related to the new variants, as well as the effectiveness of the vaccination program.
conferenceObject Serial dilution of semen samples and better results in HCV-PCR in patients with hepatitis C infection(2012) CAVALHEIRO, N.; SANTOS, A.; MELO, C.; TENGAN, F.; LEVI, J.- Exploring the combined effects of MTTP gene polymorphisms in chronic hepatitis C patients with hepatic steatosis(2024) PRATA, Thamiris Vaz Gago; PAULA, Victoria Goncalves de; PASSOS, Lhays Ozorio; BROGIATO, Vitoria Luiza Batalhoti; FERREIRA, Gustavo Manoel; MANCHIERO, Caroline; DANTAS, Bianca Peixoto; BATTAGLIA, Debora Bignotto Rosane; FIGUEIREDO, Gerusa Maria; TENGAN, Fatima Mitiko; MAGRI, Mariana Cavalheiro