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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/12691
Title: Clinically unapparent infantile thiamin deficiency in Vientiane, Laos
Authors: Sengmanivong Khounnorath
Karen Chamberlain
Ann M. Taylor
Douangdao Soukaloun
Mayfong Mayxay
Sue J. Lee
Bounthom Phengdy
Khonsavanh Luangxay
Kongkham Sisouk
Bandit Soumphonphakdy
Khaysy Latsavong
Kongsin Akkhavong
Nicholas J. White
Paul N. Newton
Mahosot Hospital
MRC Human Nutrition Research
University of Oxford
University of Health Sciences
Mahidol University
Keywords: Medicine
Issue Date: 1-Feb-2011
Citation: PLoS Neglected Tropical Diseases. Vol.5, No.2 (2011)
Abstract: Background: Beriberi occurs in Vientiane, Lao PDR, among breastfed infants. Clinical disease may be the tip of an iceberg with subclinical thiamin deficiency contributing to other illnesses. Thiamin treatment could improve outcome. Methodology/Principal Findings: A cohort of 778 sick infants admitted during one year without clinical evidence of beriberi were studied prospectively and erythrocyte transketolase assays (ETK) performed. Biochemical thiamin deficiency was defined both in terms of the activation coefficient (α > 31%) and basal ETK activity < 0.59 micromoles/min/gHb. Of the 778 infants, median (range) age was 5 (0-12) months, 79.2% were breastfed, 5.1% had α > 31% and 13.4 % basal ETK < 0.59 micromoles/min/gHb. Infants ≥2 months old had a higher frequency of biochemical markers of thiamin deficiency. Mortality was 5.5% but, among infants ≥2 months old, mortality was higher in those with basal ETK < 0.59 micromoles/min/gHb (3/47, 6.4%) than in those with basal ETK≥0.59 micromoles/min/gHb (1/146, 0.7%) (P = 0.045, relative risk = 9.32 (95%CI 0.99 to 87.5)). Multivariate regression analysis indicated that infant age ≥2 months and fewer maternal years of schooling were independently associated with infant basal ETK < 0.59 micromoles/min/gHb. Conclusions/Significance: Clinically unapparent thiamin deficiency is common among sick infants (≥2 months old) admitted to hospital in Vientiane. This may contribute to mortality and a low clinical threshold for providing thiamin to sick infants may be needed. © 2011 Khounnorath et al.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79952475816&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/12691
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