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1.
BMC Public Health ; 19(Suppl 3): 466, 2019 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-32326938

RESUMO

BACKGROUND: The country of Georgia has a high burden of chronic hepatitis C virus (HCV) infection, and prisoners are disproportionately affected. During 2013, a novel program offering no cost screening and treatment of HCV infection for eligible prisoners was launched. METHODS: The HCV treatment program implemented a voluntary opt-in anti-HCV testing policy to all prisoners. Anti-HCV positive persons received HCV RNA and genotype testing. Transient elastography was also performed on prisoners with positive HCV RNA results. Prisoners with chronic HCV infection who had ≥F2 Metavir stage for liver fibrosis and a prison sentence ≥ 6 months were eligible for interferon-based treatment, which was the standard treatment prior to 2015. We conducted an evaluation of the HCV treatment program among prisoners from the program's inception in December 2013 through April 2015 by combining data from personal interviews with corrections staff, prisoner data in the corrections database, and HCV-specific laboratory information. RESULTS: Of an estimated 30,000 prisoners who were incarcerated at some time during the evaluation period, an estimated 13,500 (45%) received anti-HCV screening, of whom 5175 (38%) tested positive. Of these, 3840 (74%) received HCV RNA testing, 2730 (71%) tested positive, and 880 (32%) met treatment eligibility. Of these, 585 (66%) enrolled; 405 (69%) completed treatment, and 202 (50%) achieved a sustained virologic response at least 12 weeks after treatment completion. CONCLUSIONS: HCV infection prevalence among Georgian prisoners was high. Despite challenges, we determined HCV treatment within Georgian Ministry of Correction facilities was feasible. Efforts to address HCV infection among prison population is one important component of HCV elimination in Georgia.


Assuntos
Antivirais/uso terapêutico , Hepacivirus , Hepatite C Crônica/diagnóstico , Programas de Rastreamento/métodos , Prisioneiros/estatística & dados numéricos , Adulto , Feminino , Genótipo , República da Geórgia , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Humanos , Masculino , Prevalência , Prisões , Avaliação de Programas e Projetos de Saúde
2.
Biol Lett ; 8(6): 1063-6, 2012 Dec 23.
Artigo em Inglês | MEDLINE | ID: mdl-23054915

RESUMO

The enzyme telomerase lengthens telomeres-protective structures containing repetitive DNA sequences at chromosome ends. Telomere shortening is associated with diseases of ageing in mammals. Chronic stress has been related to shorter immune-cell telomeres, but telomerase activity under stress may be low, permitting telomere loss, or high, partially attenuating it. We developed an experimental model to examine the impacts of extended unpredictable stress on telomerase activity in male rats. Telomerase activity was 54 per cent higher in stressed rats than in controls, and associated with stress-related physiological and behavioural outcomes. This significant increase suggests a potential mechanism for resilience to stress-related replicative senescence.


Assuntos
Envelhecimento/metabolismo , Modelos Biológicos , Estresse Fisiológico/fisiologia , Telomerase/metabolismo , Animais , Corticosterona/sangue , Comportamento Exploratório/fisiologia , Masculino , Aprendizagem em Labirinto/fisiologia , Ratos , Ratos Long-Evans
3.
Am J Trop Med Hyg ; 100(1): 54-65, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30457091

RESUMO

The burden of Plasmodium falciparum (Pf) malaria in Kenya is decreasing; however, it is still one of the top 10 causes of morbidity, particularly in regions of western Kenya. Between April 2015 and June 2016, we enrolled 965 apparently healthy children aged 0-15 years in former Nyanza and Western Provinces in Kenya to characterize the demographic, geographic, and household risk factors of asymptomatic malaria as part of an epidemiologic study to investigate the risk factors for endemic Burkitt lymphoma. The children were sampled using a stratified, multistage cluster sampling survey design. Malaria was assessed by rapid diagnostic test (RDT) and thick-film microscopy (TFM). Primary analyses of Pf malaria prevalence (pfPR) are based on RDT. Associations between weighted pfPR and potential risk factors were evaluated using logistic regression, accounting for the survey design. Plasmodium falciparum malaria prevalence was 36.0% (27.5%, 44.5%) by RDT and 22.3% (16.0%, 28.6%) by TFM. Plasmodium falciparum malaria prevalence was positively associated with living in the lake-endemic area (adjusted odds ratio [aOR] 3.46; 95% confidence interval [95% CI] 1.63, 7.37), paternal occupation as peasant farmer (aOR 1.87; 1.08, 3.26) or manual laborer (aOR 1.83; 1.00, 3.37), and keeping dogs (aOR 1.62; 0.98-2.69) or cows (aOR 1.52; 0.96-2.40) inside or near the household. Plasmodium falciparum malaria prevalence was inversely associated with indoor residual insecticide spraying (IRS) (aOR 0.44; 0.19, 1.01), having a household connected to electricity (aOR 0.47; 0.22, 0.98), and a household with two (aOR 0.45; 0.22, 0.93) or ≥ three rooms (aOR 0.41; 0.18, 0.93). We report high but geographically heterogeneous pfPR in children in western Kenya and significant associations with IRS and household-level socioeconomic factors.


Assuntos
Infecções Assintomáticas/epidemiologia , Monitoramento Epidemiológico , Características da Família , Malária Falciparum/epidemiologia , Adolescente , Fatores Etários , Animais , Criança , Pré-Escolar , Estudos Transversais , Feminino , Geografia , Humanos , Lactente , Recém-Nascido , Quênia/epidemiologia , Modelos Logísticos , Malária Falciparum/diagnóstico , Masculino , Razão de Chances , Plasmodium falciparum/isolamento & purificação , Prevalência , Fatores de Risco , Fatores Socioeconômicos , Inquéritos e Questionários
4.
Infect Agent Cancer ; 9: 32, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25686906

RESUMO

A one-day workshop on Burkitt lymphoma (BL) was held at the 9(th) African Organization for Research and Training in Cancer (AORTIC) conference in 2013 in Durban, South Africa. The workshop featured 15 plenary talks by delegates representing 13 institutions that either fund or implement research on BL targeting AORTIC delegates primarily interested in pediatric oncology. The main outcomes of the meeting were improved sharing of knowledge and experience about ongoing epidemiologic BL research, BL treatment in different settings, the role of cancer registries in cancer research, and opportunities for African scientists to publish in scientific journals. The idea of forming a consortium of BL to improve coordination, information sharing, accelerate discovery, dissemination, and translation of knowledge and to build capacity, while reducing redundant efforts was discussed. Here, we summarize the presentations and discussions from the workshop.

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