BACKGROUND: Vitamin D increases cathelicidin production, and might alter mortality due to tuberculosis (TB) in human immunodeficiency virus (HIV) coinfection. However, due to abundant sun exposure, vita min D levels might be excellent among Ugandans with HIV and TB. METHODS: We measured
25(OH)D and calcium levels in 50 HIV-negative, 50 HIV-infected and 50 TB-HIV coinfected Ugandan adults. RESULTS: Mean ± standard deviation 25(OH)D levels were 26 ± 7 ng/ml in HIV-negative, 28 ± 11 ng/ml in HIV-infected and 24 ± 11 ng/ml in TB-HIV co-infected adults
(P > 0.05 all comparisons). Vitamin D deficiency (< 12 ng/ml) was present in 10% of the HIV-infected subjects, 12% of the TB-HIV co-infected and none of the healthy controls (P = 0.03 for healthy vs. TB, P > 0.05 for other comparisons); 20% of the healthy con-
trols, 22% of the HIV-positive and 38% of the TB-HIV co-infected subjects (P = 0.047 for healthy vs. TB, P > 0.05 for other comparisons) had suboptimal vitamin D levels (< 20 ng/ml). No participant had hypercalcemia. Serum 25(OH)D levels correlated positively with body
mass index (r = 0.22, P = 0.03) and serum calcium levels (r = 0.18, P = 0.03). CONCLUSIONS: Ugandan HIV-infected adults with and without TB commonly had suboptimal vitamin D levels. Clinical trials are needed to evaluate the effect of vitamin D on health outcomes
in HIV-infected patients with low vitamin D levels.
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Document Type: Research Article
Mbarara University of Science and Technology/Teaching Hospital, Mbarara, Uganda
Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
Department of Pediatrics, University of Minnesota Medical School, Rochester, Minnesota, USA
Publication date: November 1, 2011
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