Sexual behavior Sexual preference, sexual behavior, gender preference, and the microbiome | Collection of studies

Sexual behavior, preference, gender

Michael Harrop

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I'll update this periodically with more.

Microbial Effects on Immunity in HIV: Virus, Gender or Sexual Preference Induced? (2018): https://www.sciencedirect.com/science/article/pii/S2352396418301361 - Men who have sex with men (MSM) were shown to exhibit microbiomes rich in Prevotella, independent of HIV infection.

Effects of Substance Use and Sex Practices on the Intestinal Microbiome During HIV-1 Infection (2018): https://academic.oup.com/jid/article/218/10/1560/5047923 | Article coverage: https://www.contagionlive.com/news/sexual-behavior-and-substance-use-can-affect-gut-microbiome "Participants who reported performing oral sex (with ejaculation) showed higher levels of Granulicatella and Clostridium cluster XIVa organisms but lower levels of Campylobacter, Actinomyces, Anaerococcus, Finegoldia, and Ruminococcus. Being the receptive partner in anal intercourse was shown to increase Anaerococcus and Peptostreptococcus but lower Clostridium complex IV, Dorea, and Anaerotruncus, as well as others. How recently and how frequently a subject engaged in these behaviors also seemed to have an effect on the makeup of the microbiome."

Gut microbiota from high-risk men who have sex with men drive immune activation in gnotobiotic mice and in vitro HIV infection (April 2019) https://archive.fo/l47n0#selection-809.0-809.1 "Your sexual partners can change your microbiome. Men who have sex with men (MSM) have differences in immune activation and gut microbiome composition compared with men who have sex with women (MSW), even in the absence of HIV infection.. Findings support a role for the gut microbiome in HIV transmission in MSM, and rationale for investigating the gut MB as a risk factor for HIV transmission"

Biodiversity of gut bacteria is associated with sexual behavior (Feb 2024, n=124) Establishment of a non-Westernized gut microbiota in men who have sex with men is associated with sexual practices.
 
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