Review
Current concepts
Dietary linoleic acid, immune inhibition and
disease
Alastair M Sammon
Department of
Surgery, Level 7, University of Bristol, Bristol Royal Infirmary,
Bristol BS2 8HW, UK
Accepted 2 November
1998
Review of the evidence available in published literature
supports a radical change in viewpoint with respect to disease in countries where maize is the predominant dietary component. In these
countries, the pattern of disease is largely determined by a change in
immune profile caused by metabolites of dietary linoleic acid. High
intake of linoleic acid in a diet deficient in other polyunsaturated
fatty acids and in riboflavin results in high tissue production of
prostaglandin E2, which in turn causes inhibition of the proliferation
and cytokine production of Th1 cells, mediators of cellular immunity.
Tuberculosis, measles, hepatoma, secondary infection in HIV and
kwashiorkor are all favoured by this reduction in cellular immunity.
Diet-associated inhibition of the Th1 subset is a major contributor to
the high prevalence of these diseases found in areas of sub-Saharan
Africa where maize is the staple.
Keywords: maize; linoleic acid; prostaglandin E2; cellular immunity; kwashiorkor; diet
© 1999 by The Fellowship of Postgraduate Medicine
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[Abstract] [Full Text]
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