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Gut bacteria may contribute to susceptibility to HIV infection: Research - Video

Published On 2022-10-03T11:00:00+05:30  |  Updated On 3 Oct 2022 3:16 PM IST
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Overview

New UCLA-led research suggests certain gut bacteria-including one that is essential for a healthy gut microbiome-differ between people who go on to acquire HIV infection compared to those who have not become infected.
The researchers wanted to get a better understanding of when following HIV infection these changes begin to take place. To this end, they examined gut microbiome samples from 27 men who have sex with men that were collected both before and after they became infected. They then compared those samples with 28 men who were at similar behavioral risk for infection but did not have HIV.
The samples came from the UCLA-led Collaborating Consortium of Cohorts Producing NIDA Opportunities (C3PNO), a resource and data center for millions of pieces of research, lab samples, statistics and other data aimed at boosting investigations into the effects of substance abuse on HIV/AIDS.
The researchers found that during the first year there was very little change in the infected men's gut bacteria. They found, however, that the men who acquired HIV had pre-existing differences in gut bacteria, even before they became infected, compared with their uninfected counterparts.
Specifically, these men had decreased levels of Bacteroides species, a type of bacteria prevalent in the lower intestinal tract that have important metabolic functions in maintaining a healthy gut environment, and increased levels Megasphaera elsdenii, whose role in the human gut is not yet known, compared with the uninfected at-risk controls. The researchers also found that prior to infection the men who acquired HIV had elevated inflammatory cytokines and bioactive lipids, both of which are associated with systemic inflammation, indicating that their bodies were constantly on the defense against infection or injury, compared to the matched controls.
Reference:
Dr. Jennifer Fulcher et al, EBioMedicine, DOI:10.1016/j.ebiom.2022.104286

Speakers

Isra Zaman

B.Sc Life Sciences, M.Sc Biotechnology, B.Ed

Isra Zaman is a Life Science graduate from Daulat Ram College, Delhi University, and a postgraduate in Biotechnology from Amity University. She has a flair for writing, and her roles at Medicaldialogues include that of a Sr. content writer and a medical correspondent. Her news pieces cover recent discoveries and updates from the health and medicine sector. She can be reached at editorial@medicaldialogues.in.

Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751
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