Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 401121
Title Serum 25-hydroxy-vitamin D3 concentrations increase during tuberculosis treatment in Tanzania
Author(s) Tostmann, A.; Wielders, J.P.M.; Kibiki, G.S.; Verhoef, H.; Boeree, M.J.; Ven, A.J.A.M. van der
Source The International Journal of Tubercolosis and Lung Disease 14 (2010)9. - ISSN 1027-3719 - p. 1147 - 1152.
Department(s) Cell Biology and Immunology
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) vitamin-d metabolism - pulmonary tuberculosis - immune regulation - human-monocytes - d deficiency - inhibition - rifampicin - interferon - infection - cyp3a4
Abstract SETTING: Vitamin D deficiency is associated with susceptibility to active tuberculosis (TB) in many settings. In vitro studies and studies on human volunteers showed that two of the first-line anti-tuberculosis drugs, isoniazid and rifampicin, reduce 25-hydroxy vitamin D (25[OH]D) concentrations. OBJECTIVE: To study changes in vitamin D status during treatment of Tanzanian hospitalised patients with pulmonary TB (PTB). DESIGN: We compared serum 25[OH]D concentrations in 81 Tanzanian PTB patients before and after 2 months of treatment. RESULTS: Median serum 25[OH]D concentrations increased from 91 nmol/l at baseline to 101 nmol/l after 2 months of TB treatment (median increase 6.0 nmol/l, IQR -0.7-25.0, P = 0.001). Median serum parathyroid hormone concentrations increased from 1.6 to 2.0 pmol/l (median increase 0.46, IQR -0.2-1.1, P <0.001). CONCLUSION: 25[OH]D serum concentrations increased during the first 2 months of TB treatment in 81 PTB patients in northern Tanzania. Improved dietary intake and increased sunlight exposure may have contributed to the increased 25[OH]D concentrations
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