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1.
Chinese Journal of Epidemiology ; (12): 153-157, 2015.
Article in Chinese | WPRIM | ID: wpr-335181

ABSTRACT

<p><b>OBJECTIVE</b>To understand the change trend of the awareness rate of HIV/AIDS related knowledge, risk behaviors among men who have sex with men (MSM) in Yunnan and the factors influencing their condom use, and evaluate the effect of comprehensive intervention.</p><p><b>METHODS</b>The data about the MSM's demographic information, HIV/AIDS related knowledge awareness, and sex behavior, condom use, drug use and intervention receiving were obtained from AIDS sentinel surveillance among MSM in Yunnan province during 2010-2013 to conduct change trend and influencing factor analysis.</p><p><b>RESULTS</b>A total of 9 073 MSM were surveyed. The awareness rate of the HIV/AIDS related knowledge, homosexual behavior and condom use rate increased year by year (P < 0.01). The condom use rate was lower in heterosexual behavior, and the drug use rate and sexually transmitted disease prevalence declined with year (P < 0.01). Multivariate logistic regression analysis indicated that cohabiting, low awareness of HIV/AIDS related knowledge, being from other provinces, local residence for <1 year, low education level, receiving no intervention, frequent anal sex and receiving no HIV/AIDS detection were the risk factors influencing persistent condom use among MSM.</p><p><b>CONCLUSION</b>The effect of HIV/AIDS comprehensive intervention was observed after 4 years implantation, but most of the index were at low level. More attention should be paid to the intervention among MSM with cohabiting habit, low education level, frequent anal sex, and heterosexual sex. It is necessary to expand intervention coverage, strengthen HIV test and promote condom use among MSM.</p>


Subject(s)
Humans , Male , Acquired Immunodeficiency Syndrome , Epidemiology , China , Epidemiology , Communicable Diseases , Data Collection , HIV Infections , Habits , Heterosexuality , Homosexuality, Male , Mass Screening , Prevalence , Risk Factors , Risk-Taking , Safe Sex , Sentinel Surveillance , Sexual Behavior , Sexually Transmitted Diseases
2.
Article in Chinese | WPRIM | ID: wpr-387686

ABSTRACT

Objective To investigate the expression of CD127 (interleukin-7 receptor α, IL-7Rα)and its association with apoptosis of CD8 + T lymphocytes in patients with chronic HIV-1 infection. Methods The expression of CD127 on T lymphocytes and spontaneous apoptosis of CD8+ T lymphocytes were measured by flow cytometry in peripheral blood from 24 patients with chronic HIV-1 infections and 12 healthy subjects. The associations of CD127 expression with CD4 +T lymphocytes counts, HIV RNA loads and cell apoptosis were analyzed. Mann-Whitney U test was performed to compare between the groups, and Spearman test was used for correlation analysis. Results The expression of CD127 on CD8 + T lymphocytes was significantly down-regulated in HIV-1 infected subjects (Z = -4.796, P < 0. 01 ), which was positively correlated with CD4 + T lymphocytes (r = 0.817, P < 0.01 ) and negatively correlated with HIV RNA load and CD8+T lymphocytes apoptosis (r= -0.442 and -0.688,P<0.05 and <0.01). Conclusion CD127 down-regulation may play an important role in the descended ability of receiving survival signals and ascended apoptosis of CD8 + T lymphocytes during chronic HIV-1 infection, which indicates that IL-7 might be a novel strategy in treatment of HIV infection.

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