ESPE Abstracts (2015) 84 P-3-1009

Growth

Nutritional Supplementation, Sleep Patterns and Growth in Short and Lean Prepubertal Children

Ayelet Machteia, Yael Lebenthala,b, Liora Lazara,b, Raanan Shamirb,c, Moshe Phillipa,b & Michal Yackobovitch-Gavana

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aInstitute for Endocrinology and Diabetes, Schneider Children’s Medical of Israel, Petah Tikva, Israel; bSackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; cInstitute for Gastroenterology, Nutrition, and Liver Diseases, Schneider Children’s Medical Center of Israel, Petah Tikva, Israel


Background: GH secretion is affected by duration and quality of sleep. Studies examining the connection between sleep and linear growth have reported conflicting results. Recently, we reported that nutritional supplementation was effective in promoting growth in children. In the present study, we extended our evaluation of the nutritional supplement to assess the association between nutrition, sleep and growth.

Objective and hypotheses: To examine whether nutritional supplementation affects sleep patterns and growth.

Method: Study design: Prospective randomised, double-blinded, placebo-controlled study of nutritional supplementation at the Endocrinology Department of a tertiary Pediatric Medical Center of healthy, lean, short, pre-pubertal children. Outcome measures: Anthropometric measurements (Height-SDS, Weight-SDS and BMI-SDS), sleep pattern (sleep-schedule time questionnaire (SSTQ)) and nutritional intake (3-day food diaries), were assessed at entry and after 6 months intervention.

Results: 164 healthy short and lean pre-pubertal children (127 boys, mean age 5.6±1.5 years) – 83 from the formula group and 81 from the placebo group – were recruited to the sleep assessment study. Baseline characteristics were similar in the formula and placebo groups. In the formula group ’good’ consumers (intake of ≧50% of the recommended dose) had a shorter sleep latency (P=0.046) compared with ’poor’ consumers (intake of <50%). Children with ’fast’ time to sleep (<15 min) improved significantly weight-SDS (0.25±0.34 vs 0.07±0.36, P=0.044), and tended to improve height-SDS (0.09±0.13 vs 0.03±0.13, P=0.057) as compared to ’slow’ time to sleep. In the placebo group, differences in sleep latency and growth measurements were not found. Positive correlations were found between mean sleep duration and caloric intake/kg, protein/kg, carbohydrate/kg and fat/kg both, at baseline and after 6 months of intervention.

Conclusion: Our data suggests that in short and lean pre-pubertal children nutritional supplementation is associated with improved sleep patterns. Yet to be elucidated are the mechanisms linking between nutritional intake, sleep patterns, and linear growth.

Conflict of interest: M.YG., L.L., R.S., and M.P. together with Schneider Children’s Medical Center of Israel, created NG Solutions a company aimed at distributing the study formula.

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