Analysis of the positive conversion rate of negative spouse and survival analysis on HIV sero－discordant couples / 中华疾病控制杂志

@#Objective To analyze the positive conversion rate of negative spouse and the survival analysis on HIV sero－discordant couples． Methods Data were collected from the case report database of the integrated AIDS prevention and control data and information system． HIV sero－discordant couples diagnosed between September 1，1997 and September 1，2018 were recruited into the cohort． The participants were divided into three groups as untreated subgroup，routine treatment subgroup and early treatment subgroup according to the situation when they started HIV treatment． The positive conversion rate of negative spouse and the survival were compared among the three subgroups． Ｒesults 598 HIV sero－discordant couples were recruited and the overall survival time of the three subgroups were 258. 92，4 987．17 and 862．25 person－year． The rate of positive conversion were 6. 18/100，0. 48/100 and 0. 23/100 person－year． Multivariate Cox regression model showed that the hazard ratio of routine treatment subgroup ( HＲ = 0. 052，95% CI: 0. 037－0. 074) and early treatment subgroup ( HＲ=0. 011，95% CI: 0. 003－0. 035) were lower than untreated subgroup． The risk of death of women was lower than that of men( HＲ=0. 667，95% CI: 0. 472－0. 944) ; the older the age，the higher the risk of death ( HＲ=1. 041，95% CI: 1. 026－1. 056) ; and the risk of death of the unemployed is higher than that of farmers ( HＲ=1. 571，95% CI: 1. 037－2. 381) ． Conclusion Targeted interventions methods and early antiviral therapy should be taken urgently for sero－discordant couples．

Parejas heterosexuales serodiscordantes en Chiapas, México. La influencia del género en la expresión de la agencia / Heterosexual HIV-Discordant Couples in Chiapas, Mexico. The Influence of Gender in Agency Expression

Resumen Hombres y mujeres heterosexuales con Virus de Inmunodeficiencia Humana (VIH) enfrentan desafíos personales (e.g. miedo a contagiar a otros y al rechazo) y sociales (el rechazo real). Para una persona con VIH (PV), estos son obstáculos en el desarrollo de su vida, especialmente si al formar una pareja, la otra persona no tiene el virus. A partir del supuesto de que las personas no carecen de poder para enfrentar y, ocasionalmente, transformar estructuras sociales, se elaboró este trabajo con el objetivo de explorar y comparar las estrategias seguidas por dos hombres y dos mujeres con VIH, en la formación de pareja, con personas que no tenían reporte (pareja serodiscordante). Los resultados destacan diferencias en las estrategias. Las dos mujeres experimentaron su sexualidad con hombres sin VIH. Sin embargo, ocultaron su diagnóstico a los hombres correspondientes. Tuvieron más dificultades, que los dos hombres, en su afán por mantener una relación de pareja estable. Además, han estado expuestas a riesgos de embarazo no deseado y violencia por ocultar el diagnóstico. Los hombres recurrieron al enamoramiento, para sostener una relación, donde la pareja correspondiente conoció, por información que ellos mismos les proporcionaron, su diagnóstico. Los resultados destacan que hay una inequidad en la disponibilidad de esquemas y recursos, entre hombres y mujeres. Frente al desafío de formar pareja y vivir la sexualidad, después del diagnóstico, las inequidades se reflejan en más dificultades y riesgos en las mujeres.

Abstract: Heterosexual men and women with Human Immunodeficiency Virus (HIV) face personal challenges (e.g. fear of infecting others and rejection) and social ones (real rejection). For a person with HIV (VP), these are obstacles in the development of their life, especially if forming a couple, where the other person does not have the virus. Based on the assumption that people do not lack the power to confront and occasionally transform social structures, this study was carried out in order to explore and compare the strategies followed by two men and two women with HIV, in forming couples, with people who did not have it (HIV-discordant couple). The results highlight differences in strategies.Although the two women experienced their sexuality with men without HIV, to do so, they hid their diagnosis from their prospective partners. They had more difficulties than the two men, in their eagerness to maintain a stable couple relationship. In addition, they were exposed to risks of unwanted pregnancy and violence, for hiding the diagnosis.The men resorted to falling in love, to sustain a relationship, where the corresponding partner knew their diagnosis, from information that the men themselves gave them. The results highlight that there is inequity in the availability of schemes and resources, between men and women. Faced with the challenge of forming a couple and living their sexuality after the diagnosis, inequities are reflected in more difficulties and risks for women.

Meta analysis on HIV-negative partners' or lovers' sero-conversion among HIV sero-discordant couples in China / 中国感染控制杂志

Objective To investigate HIV sero-conversion in HIV-negative partners or lovers among HIV serodiscordant couples.Methods China National Knowledge Infrastructure(CNKI),Wangfang data,and PubMed were retrieved,literatures about HIV sero-conversion in HIV-negative partners or lovers among HIV sero-discordant couples were included in the study,Meta analysis was performed by R software.Results There were 11 literatures were included in the study,Meta analysis showed that HIV-negative partners' or lovers' overall sero-conversion rates among HIV sero-discordant couples in China was 1.0/100 person-year;in different economic levels and epidemic areas,HIV-negative partners' or lovers' sero-conversion rates were both 1.0/100 person-year.Conclusion The HIV-negative partners' or lovers' sero-conversion rates among HIV sero-discordant couples in China are not high.

Acceptability and associated factors of pre-exposure prophylaxis based on different sexual purpose among human immunodeficiency virus male sero-discordant couples / 中华传染病杂志

Objective To study the acceptability and associated factors of pre-exposure prophylaxis (PrEP) based on different sexual purpose among human immunodeficiency virus (HIV) male serodiscordant couples.Methods HIV-negative female spouses of HIV-positive male in Guigang,Guiping and Pingnan county in Guangxi Zhuang Autonomous Region were recruited by the existing epidemic database and the method of cluster random sampling.A face-to-face questionnaire survey was conducted during June 2013 to November 2016.Information including the general condition and acceptability of PrEP was surveyed.x2 test and Logistic regression were used to analyze the data.Results A total of 526 qualified questionnaires were collected.The intention rate of PrEP based on physiological sexual purpose was 66.9％ (352/526),the intention rate of PrEP based on fertility purpose was 93.3％ (491/526).The difference was statistically significant (x =139.48,P＜0.01).The reasons of refusal included worrying about its safety,effectiveness poor confidentiality and low self-assessment risk of infection.Logistic analysis showed that the associated factors of the intention rate of PrEP based on physiological sexual purpose included cognition of PrEP (OR=0.70,P=0.014),the number of lifetime partners (OR=0.55,P＜0.01),frequency of sexual behavior (OR=1.33,P=0.016),willingness of condom use (OR=0.16,P＜0.01),infection risk self-assessment (OR =0.22,P＜0.01),male viral load (OR=1.25,P=0.035),male CD4+ T lymphocyte count (OR=0.37,P＜0.01) and male usefulness of medication or not (OR=1.59,P＜0.01).The influencing factors of the intention rate of PrEP based on physiological sexual purpose included with or without children (OR =1.70,P＜0.01),cognition of PrEP (OR=0.72,P=0.026),willingness of using condom (OR=0.18,P＜0.01),infection risk self-assessment (OR=0.14,P＜0.01) and male CD4+ T lymphocyte count (OR=0.45,P＜0.01).Conclusions The acceptability of PrEP based on fertility purpose is significantly higher than that on the physiological purpose.It is more feasible to conducting clinical trials of PrEP in peri-conceptional period HIV serodiscordant couples.The main influencing factors include the uninfected individual behavior characteristics and infection features of HIV infected men,and have nothing to do with the general social demographic characteristics.

Incidence rate of HIV transmission in HIV discordant couples in Zhejiang province, 2009-2013 / 中华流行病学杂志

Objective To identify the HIV transmission in discordant couples and the epidemic characteristics of concordant couples related to HIV infection.Methods HIV/AIDS database was down-loaded from AIDS information reported system for analysis.Patients with HIV-negative couples between 2009 and 2013 in Zhejiang province were enrolled in this study.Information included demography characteristics,highly active antiretroviral therapy (HAART),HIV incidence rate and risk factors,characteristics on HIV concordant couples.Results The HIV incidence rate on HIV-negative couples of 2 575 HIV/AIDS was 3.56 per 1 000 person-year,reducing from 5.49 per 1 000 person-year in 2009 to 3.20 per 1 000 person-year in 2013.There was a slight increase on HIV incidence rate among couples in those HIV-positive men who were heterosexual,while it decreased among couples of HIV-positive women.Initiation of HAART over 1 years (OR=0.063,95％ CI:0.019-0.204) seemed to be a preventive factor for HIV transmission between the couples under study.Factors as history of infection longer than 3 years (OR=3.564,95％ CI:1.296-9.804) and beingnon-local resident (OR=2.626,95％ CI:1.098-6.230) were risky factors.Conclusion The incidence rate of HIV transmission between HIV discordant couples was low but imbalance in different areas.People who were non-local residents under HIV discordant status,would need more attention.HAART,time of infection,status of residency appeared risk factors for HIV transmission within the couples.

Social and immunological differences among uninfected Brazilians exposed or unexposed to human immunodeficiency virus-infected partners

Understanding the social conditions and immunological characteristics that allow some human immunodeficiency virus (HIV)-exposed patients to remain uninfected represents an on-going challenge. In this study, the socio-demographic and sexual behaviour characteristics and immune activation profiles of uninfected individuals exposed to HIV-infected partners were investigated. A confidential and detailed questionnaire was administered and venous blood was tested using HIV-1/enzyme immunoassays, plasma HIV-1 RNA levels/bDNA and immunophenotyping/flow cytometry to determine the frequencies of CD4 and CD8 T cells expressing activation markers. The data analysis showed significant differences (p < 0.05) for immune parameters in individuals who were uninfected, albeit exposed to HIV-infected partners, compared with unexposed individuals. In particular, the exposed, uninfected individuals had a higher frequency (median, minimum-maximum) of CD4+HLA-DR+ (4.2, 1.8-6.1), CD8+HLA-DR+ (4.6, 0.9-13.7), CD4+CD45RO+ (27.5, 14.2-46.6), CD4+CD45RO+CD62L+ (46.7, 33.9-67.1), CD8+CD45RA+HLA-DR+ (12.1, 3.4-35.8) and CD8+CD45RO+HLA-DR+ (9.0, 3.2-14.8) cells, a decreased percentage of CD8+CD28+ cells (11.7, 4.5-24.0) and a lower cell-surface expression of Fcγ-R/CD16 on monocytes (56.5, 22.0-130.0). The plasma HIV-1 RNA levels demonstrated detectable RNA virus loads in 57% of the HIV-1+ female partners. These findings demonstrate an activation profile in both CD4 and CD8 peripheral T cells from HIV-1 exposed seronegative individuals of serodiscordant couples from a referral centre in Belo Horizonte, state of Minas Gerais.

Polymorphisms in major cytokine genes: A study among human immunodeficiency Virus-1 serodiscordant couples in Mumbai, India.

Purpose: Polymorphism in cytokine genes may affect its production, which play an important role in modulation of human immunodeficiency virus (HIV) infection. Evaluation of these polymorphisms might help to understand why some individuals remain uninfected in spite of several exposures to HIV infection, such as the negative spouses of discordant couples. The aim of this study was to evaluate the association of 22 single nucleotide polymorphisms (SNPs) in 13 cytokine genes and their receptors with HIV infection in serodiscordant couples, attending the Integrated Counselling and Testing Centre of a Municipality Hospital. Materials and Methods: At the end of at least 2 years of follow up, 42 couples were confirmed as being serodiscordant. Genotyping was carried out in blood samples of these couples using the polymerase chain reaction-sequence-specific amplification method. Results: Significantly high frequency of interleukin-1 receptor antagonist IL-1RA mspa 11100 CC ( P = 0.04), tumor necrosis factor-alpha TNF-α −238 AG ( P = 0.01) and IL-4 −33 TT ( P = 0.01) was observed in HIV seropositives (HSP) while frequency of TNF-α −238 GG ( P = 0.02) was significantly high among the exposed uninfected (EU). However, application of Bonferroni correction identified only two SNPs i.e., TNF-α −238 AG and IL-4 −33 TT to be significantly associated with the acquisition of HIV. In remaining cytokine genes, no significant association was observed. Conclusion: Our study highlighted possible association of certain specific polymorphisms with HIV transmission, whereas presence or absence of certain other polymorphism in EU individuals might be offering protection from HIV infection. These variations at the genetic level might help to explore new insights into treatment and HIV prevention strategies.