Randomized trial of the effect of zinc supplementation on the mental health of school-age children in Guatemala  

Oleh:

DiGirolamo, Ann M. ; Ramirez-Zea, Manuel ; Meng Wang ; Flores-Ayala, Rafael ; Martorell, Reynaldo ; Neufeld, Lynnette M. ; Ramakrishnan, Usha ; Sellen, Daniel ; Black, Maureen M. ; Stein, Aryeh D.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The American Journal of Clinical Nutrition vol. 92 no. 05 (Nov. 2010), page 1241-1250.
Topik: NUTRITION; Attention-Deficit Hyperactivity Disorder; Zinc Supplementation
Fulltext: Am J Clin Nutr-2010-DiGirolamo-1241-50.pdf (126.1KB)

Ketersediaan

Perpustakaan FK Nomor Panggil: A07.K.2010.02 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Background: Rates of mental illness in children are increasing throughout the world. Observational studies of depression, anxiety, and attention-deficit hyperactivity disorder suggest that zinc is an alternative treatment. Objective: We examined the effect of zinc supplementation on the mental health of school-age children in Guatemala. Design: From January to October 2006, we conducted a 6-mo randomized, double-blind, controlled trial comparing zinc supplementation (10 mg ZnO/d for 5 d/wk) with a placebo (10 mg glucose) in 674 Guatemalan children in grades 1–4. Outcome measures included internalizing (ie, depression and anxiety) and externalizing (ie, hyperactivity and conduct disorder) problem behaviors, positive behaviors (ie, socialization and leadership), and serum zinc concentrations. Results: Zinc and placebo groups did not differ significantly in any behavioral measures at baseline or at follow-up. At baseline, 21.4% of children had serum zinc concentrations <65 µg/dL. At follow-up, both groups improved significantly, and zinc concentrations were higher in the zinc group. Increases in serum zinc concentrations were inversely associated with decreases in depressive symptoms (estimate: -0.01 points per µg Zn/dL; P = 0.01), anxiety (estimate: -0.012 points per µg Zn/dL; P = 0.02), internalizing symptoms (estimate: -0.021 points per µg Zn/dL; P = 0.02), and social skills (estimate: -0.019 points per µg Zn/dL; P = 0.01) in adjusted models that were controlled for child age, sex, socioeconomic status, household, and treatment group. Conclusions: Six months of zinc supplementation did not induce differences in mental health outcomes between zinc and placebo groups. However, increases in serum zinc concentrations were associated with decreases in internalizing symptoms (ie, depression and anxiety) in a community-based sample of children at risk of zinc deficiency.

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