Association between vitamin D receptor gene polymorphisms and response to treatment of pulmonary tuberculosis

Daniel E. Roth, Giselle Soto, Fanny Arenas, Christian T. Bautista, Jaime Ortiz, Richard Rodriguez, Lilia Cabrera, Robert H. Gilman

Research output: Contribution to journalArticlepeer-review

128 Scopus citations


Background. Polymorphisms in the gene that encodes the vitamin D receptor (VDR) may influence the host response to Mycobacterium tuberculosis infection. Methods. In a Peruvian community with a high incidence of tuberculosis (TB), VDR TaqI and FokI polymorphisms were compared among 103 patients with pulmonary TB and 206 matched healthy control subjects. Associations of VDR polymorphisms with treatment outcome were analyzed among 78 patients undergoing treatment of pulmonary TB. Results. Sputum mycobacterial culture and auramine stain conversions were significantly faster among participants with the FokI FF genotype, compared with participants with the non-FF genotypes. Sputum culture conversion was faster among participants with the TaqI Tt genotype, compared with those with the TT genotype. Increased probability of culture conversion during TB treatment was independently associated with the TaqI Tt genotype (age- and sex-adjusted relative risk, 4.28; 95% confidence interval, 1.88-9.75; P = .001). VDR polymorphisms were not significantly associated with susceptibility to TB in the case-control study. Conclusions. VDR gene polymorphisms are associated with the time to sputum culture and auramine stain conversion during TB treatment. To our knowledge, the present study is the first report of a specific host gene influence on the outcome of TB treatment. These findings demonstrate the potential clinical relevance of immunomodulatory functions of vitamin D metabolites acting via the VDR in the host response against pulmonary TB.

Original languageEnglish (US)
Pages (from-to)920-927
Number of pages8
JournalJournal of Infectious Diseases
Issue number5
StatePublished - Sep 1 2004
Externally publishedYes

ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases


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