RESUMO
Nucleic acid amplification test (NAT), which was introduced by the Japanese Red Cross Society in October 1999, began to be performed for screening of blood transfusion formulations in Japan in August 2014. In this study, the precision of immunological screenings of hepatitis B (HBsAg, HBcAb, and HBsAb), hepatitis C (HCVAb), and human immunodeficiency (HIVAb) virus antigens in donated blood were evaluated. In addition, the sensitivity of the alanine aminotransferase (ALT) test for detection of the hepatitis B and C viruses was re-evaluated. Immunological screenings showed high precision of detecting the viral antigens. In contrast, the ALT test showed much lower precision of detecting the presence of the hepatitis B and C viruses. Results of the NAT and immunological screenings revealed that ALT levels in donors were more strongly correlated with their levels of gammaglutamyltranspeptidase (γGTP) and body mass index (BMI), than with the results of NAT and immunological screening. Our study indicates that elevated level(s) of ALT, were more likely to be associated with lifestyles factors such as high intake of alcohol or obesity than with infection. Therefore, ALT may be excluded as surrogate markers of HBV, HCV, and HIV in donated blood.
Assuntos
Alanina Transaminase/sangue , Hepatite B/sangue , Hepatite C/sangue , Vírus de Hepatite/isolamento & purificação , Adulto , Biomarcadores/sangue , Feminino , Anticorpos Anti-Hepatite/sangue , Antígenos de Hepatite/sangue , Hepatite B/enzimologia , Hepatite B/imunologia , Hepatite B/virologia , Hepatite C/enzimologia , Hepatite C/imunologia , Hepatite C/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Técnicas de Amplificação de Ácido Nucleico , Curva ROC , Análise de RegressãoRESUMO
Life expectancy has increased considerably throughout the world. In Bangladesh, life expectancy has increased from about 53 years in 1975 to 69 years in 2010. However, it is unknown whether the increase in life expectancy is simultaneously accompanied by an increase in disability-free life expectancy (DFLE). The purpose of the study described in this article was to explore the relationship between life expectancy and DFLE in the Rajshahi District of Bangladesh by examining the relationships between the Active Aging Index (AAI) and DFLE. The study fi ndings suggest that urban, more-educated, elderly males are more active in all aspects of life and have longer DFLE. Females are found to outlive males but are more likely to live a greater part of their remaining life with disability. Positive correlations between the AAI and DFLE suggest that older adults could enjoy more DFLE by involving themselves in active aging activities.
