2010, Number 3
Adjunctive micronutrient supplementation for pulmonary tuberculosis
Language: Spanish
References: 13
Page: 185-189
PDF size: 118.81 Kb.
ABSTRACT
Objective. To assess the effect of micronutrient supplementation on tuberculosis (TB) patient outcomes. Material and Methods. The randomized, double-blinded, placebocontrolled study was conducted in pulmonary TB patients undergoing directly observed treatment short course/ tratamiento acortado estrictamente supervisado (TAES/ DOTS) at IMSS in Ciudad Juarez, Chihuahua, Mexico, who were recruited during August 2005-July 2006. Consecutive patients received zinc and vitamin A supplements or matched placebo for four months. Dietary intake, blood zinc and vitamin A, immune response (IFN-γ, TNF-α, and IL-10 mRNA), and sputum smear conversion were measured. Results. The proportion of micronutrient compared to placebo group subjects with a negative sputum smear by month 3 was significantly increased (p= 0.03). This occurred subsequent to increased TNF-α and IFN-γ and decreased IL-10 observed at month 2. Micronutrient supplementation appeared to accelerate the beneficial therapeutic effect of chemotherapy. Conclusions. The earlier elimination of bacilli from sputum was associated with improved zinc status and Th1 immune response. The therapeutic effect of vitamin A was less evident.REFERENCES
van Lettow M, West CE, van der Meer JW, Wieringa FT, Semba RD. Low plasma selenium concentrations, high plasma human immunodeficiencyvirus load and high interleukin-6 concentrations are risk factors associated with anemia in adults presenting with pulmonary tuberculosis in Zomba district, Malawi. Eur J Clin Nutr 2005; 59(4):526-532.
Geffner L, Yokobori N, Basile J, Schierloh P, Balboa L, Romero M, et al. Patients with multidrug tuberculosis display impaired Th1 responses and enhanced regulatory T-cell levels in response to an outbreak of multidrugresistant Mycobacterium tuberculosis M and Ra strains. Infection and Immunity 2009;77:5025-5034.