HIV-associated lipodystrophy

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HIV-associated lipodystrophy
Other namesLipodystrophy in HIV-infected patients (LD-HIV)
SpecialtyImmunology, dermatology, infectious diseases, endocrinology Edit this on Wikidata

HIV-associated lipodystrophy is a condition characterized by loss of

subcutaneous fat associated with infection with HIV.[1]
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Presentation

HIV-associated lipodystrophy commonly presents with fat loss in face, buttocks, arms and legs.[citation needed]

There is also fat accumulation in various body parts. Patients often present with "buffalo hump"-like fat deposits in their upper backs. Breast size of patients (both male and female) tends to increase. In addition, patients develop abdominal obesity.[citation needed]

Cause

The exact mechanism of HIV-associated lipodystrophy is not fully elucidated. There is evidence indicating both that it can be caused by anti-retroviral medications and that it can be caused by HIV infection in the absence of anti-retroviral medication.[citation needed]

Evidence implicating anti-retroviral medications

On the one hand, lipodystrophy seems to be mainly due to HIV-1

nucleoside reverse transcriptase inhibitors (NRTI). Mitochondrial toxicity is postulated to be involved in the pathogenesis associated with NRTI.[2]

Evidence implicating HIV infection alone

On the other hand, there is evidence that

HIV-1 infection on its own contributes to the development of the lipodystrophic phenotype by interfering with some key genes of adipocyte differentiation and mitochondrial function on patients which have not received antiretroviral treatment.[3]

Management

GHRH analogs such as tesamorelin can be used to treat HIV-associated lipodystrophy.[citation needed]

Prognosis

Reversion of lipodystrophy does not occur after withdrawal of protease inhibitors.[2]

See also

References

External links