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1.
Sex Transm Dis ; 51(2): 118-124, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-37934141

ABSTRACT

BACKGROUND: Chinese gay, bisexual, and other men who have sex with men (GBMSM) face discrimination in many facility-based health services, thus increasing the importance of online engagement. The purpose of this study was to examine online GBMSM community spaces and implications for HIV/sexually transmitted disease prevention services. METHODS: We conducted a total of 6 online focus group discussions with Chinese GBMSM from Guangdong province on the chat-based platform WeChat in 2021. Focus group discussions were asynchronous, and participants were able to provide and map out online spaces that they had participated in and share their perspectives on online engagement. Data were analyzed through framework analysis. RESULTS: Overall, 48 participants participated. Most were mainly sexually attracted to men (n = 43; 90.0%) and never participated in in-person LGBTQ-related events (n = 29; 60.4%). Participants articulated a typology of online spaces along the axes of whether such spaces were Chinese platforms (vs. non-Chinese) or whether they were GBMSM-specific (vs. non-GBMSM-specific). Participants articulated several advantages of online spaces, including greater anonymity, opportunities for community building, sharing of sexual health information, and being able to meet other GBMSM more efficiently. Drawbacks included the lack of personal connection, lack of safety measures for youth, encountering deception and the use of fake profile pictures, and needing a virtual proxy network to access some websites. Participants provided suggestions to further improve their experiences of online spaces. CONCLUSIONS: Although broad-based, GBMSM-specific messaging can be implemented in Chinese, GBMSM-specific spaces, sexual health messaging may also reach niche GBMSM communities in a variety of non-GBMSM spaces.


Subject(s)
HIV Infections , Sexual and Gender Minorities , Sexually Transmitted Diseases , Male , Adolescent , Humans , Homosexuality, Male , HIV , Focus Groups , Sexually Transmitted Diseases/epidemiology , Sexually Transmitted Diseases/prevention & control , HIV Infections/epidemiology , HIV Infections/prevention & control , China/epidemiology
2.
Pharmaceutics ; 14(6)2022 Jun 12.
Article in English | MEDLINE | ID: mdl-35745823

ABSTRACT

Hybrid-based drugs linked through a transition metal constitute an emerging concept for Plasmodium intervention. To advance the drug design concept and enhance the therapeutic potential of this class of drugs, we developed a novel hybrid composed of quinolinic ligands amodiaquine (AQ) and primaquine (PQ) linked by gold(I), named [AuAQPQ]PF6. This compound demonstrated potent and efficacious antiplasmodial activity against multiple stages of the Plasmodium life cycle. The source of this activity was thoroughly investigated by comparing parasite susceptibility to the hybrid's components, the annotation of structure-activity relationships and studies of the mechanism of action. The activity of [AuAQPQ]PF6 for the parasite's asexual blood stages was influenced by the presence of AQ, while its activity against gametocytes and pre-erythrocytic parasites was influenced by both quinolinic components. Moreover, the coordination of ligands to gold(I) was found to be essential for the enhancement of potency, as suggested by the observation that a combination of quinolinic ligands does not reproduce the antimalarial potency and efficacy as observed for the metallic hybrid. Our results indicate that this gold(I) hybrid compound presents a dual mechanism of action by inhibiting the beta-hematin formation and enzymatic activity of thioredoxin reductases. Overall, our findings support the potential of transition metals as a dual chemical linker and an antiplasmodial payload for the development of hybrid-based drugs.

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