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In the Media

article imageCommon food fungus can accelerate onset of AIDS

By Tim Sandle
Sep 1, 2013 in Health
A type of fungus coating much of the stored corn, wheat, rice and nuts in developing countries may worsen and speed up the onset of AIDS.
Many food stores in countries near the equator are contaminated by Aspergillus flavus and A. parasiticus, fungi that produce a toxic substance called aflatoxin. Aflatoxins are toxic and among the most carcinogenic substances known, although in most cases the liver can render the toxins relatively harmless.
In many parts of the world grain is tested and protective measures are in place. For example, the United States Food and Drug Administration (FDA) has established action levels for aflatoxin present in food or feed to protect human and animal health. However, such measures are not in place in most parts of Africa.
In a study led by Pauline, Jolly, Ph.D., professor in the Department of Epidemiology within the School of Public Health at the University of Alabama at Birmingham (UAB), people infected with HIV who consume foods containing aflatoxins are at risk from an accelerated onset of AIDS.
For the experiment, 314 HIV-positive people who were not yet on antiretroviral therapy and who lived in Kumasi, Ghana, were recruited. The researchers divided patients into four groups based on their level of aflatoxin exposure and found that those in the highest exposure group were around three times more likely to have a high HIV viral load than those in the lowest exposure group. Higher viral load translates into higher rates of HIV transmission and the potential for earlier progression to the opportunistic infections of AIDS.
The theory runs that fungal toxin may suppress the immune system by reducing the production of certain immune cells or the proteins that activate them.
The findings have been published in the World Mycotoxin Journal. The study is called "Association between high aflatoxin B1 levels and high viral load in HIV-positive people."
article:357485:14::0
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