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VOLUME 12 - NUMBER 1 / January - March 2010
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Epidemiology, Assessment, and Management of Excess Abdominal Fat in Persons with HIV Infection Graeme Moyle, Michel Moutschen, Esteban Martínez, Pere Domingo, Giovanni Guaraldi, François Raffi, Georg Behrens and Peter Reiss
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Chelsea and Westminster Hospital. London, UK |
Abstract
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Metabolic and morphologic abnormalities in persons with HIV remain common contributors to stigma
and morbidity. Increased abdominal circumference and visceral adiposity were first recognized in the
late 1990s, soon after the advent of effective combination antiretroviral therapy. Visceral adiposity is
commonly associated with metabolic abnormalities including low HDL-cholesterol, raised triglycerides,
insulin resistance, and hypertension, a constellation of risk factors for cardiovascular disease and
diabetes mellitus known as “the metabolic syndrome”. Medline and conference abstracts were searched
to identify clinical research on factors associated with visceral adiposity and randomized studies of
management approaches. Data were critically reviewed by physicians familiar with the field. A range
of host and lifestyle factors as well as antiretroviral drug choice were associated with increased
visceral adiposity. Management approaches included treatment switching and metformin, both of which
have shown benefit for insulin-resistant individuals with isolated fat accumulation. Testosterone supplements
may also have benefits in a subset of individuals. Supra-physiological doses of recombinant human
growth hormone and the growth hormone releasing hormone analog tesamorelin both significantly
and selectively reduce visceral fat over 12-24 weeks; however, the benefits are only maintained if dosing
is continued. In summary, the prevention and management of visceral adiposity remains a substantial
challenge in clinical practice.
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Key words:
Visceral adiposity. Lipodystrophy. HIV. Metabolic syndrome. Metformin. Tesamorelin. |
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