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Vitamin D, parathormone, and insulin resistance in children born large for gestational age.
J Pediatr Endocrinol Metab. 2014 Nov; 27(11-12):1145-50.JP

Abstract

BACKGROUND

Low vitamin D [25(OH)D] levels have been associated with type-2 diabetes mellitus. Children born large for gestational age (LGA) may exhibit increased indices of insulin resistance early in life.

OBJECTIVE

This study aims to prospectively examine serum 25(OH)D and parathormone (iPTH) levels in LGA and appropriate for gestational age (AGA) prepubertal children, in relation to the severity of macrosomia and insulin resistance.

METHODS

Children were examined at age 5-7.5 years, 38 born LGA and 39 AGA, matched for age, gender, body weight, height and body mass index (BMI). Twenty-one LGA had birth weights in the 90th-97th percentile and 17 >97th percentile. Fasting serum levels of glucose, insulin, 25(OH)D, and iPTH were measured. The homeostasis model assessment for insulin resistance (HOMA-IR) was estimated.

RESULTS

The insulin resistance indices were higher in the LGA >97th percentile subgroup than in the AGA group: HOMA-IR 1.53±0.66 vs. 1.04±0.53 and fasting insulin 6.92±3.1 vs. 4.78±2.2 μIU/mL (but similar to the AGA group), and in the LGA 90th-97th percentile subgroup: HOMA-IR 1.17±0.61 and insulin 5.53±2.2. There was no difference in 25(OH)D among the three subgroups. The iPTH was higher in the LGA >97th percentile subgroup than in the AGA group (26.8±7.6 and 22.6±7.2 pg/mL, respectively, p<0.05), although it was not correlated with insulin resistance indices. Birth weight was correlated negatively with fasting insulin and HOMA-IR in the entire cohort, independent of age, sex, waist circumference, and BMI (β=0.37, p<0.01 and β=0.30, p<0.05, respectively), while waist circumference was positively correlated with HOMA-IR (R=0.40, p<0.001).

CONCLUSION

Birth weight and current body composition appear to affect glucose homeostasis in LGA prepubertal children, while the serum levels of 25(OH)D and iPTH appear to be uninvolved.

Authors

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Pub Type(s)

Journal Article

Language

eng

PubMed ID

24995403

Citation

Giapros, Vasileios I., et al. "Vitamin D, Parathormone, and Insulin Resistance in Children Born Large for Gestational Age." Journal of Pediatric Endocrinology & Metabolism : JPEM, vol. 27, no. 11-12, 2014, pp. 1145-50.
Giapros VI, Challa AS, Cholevas VI, et al. Vitamin D, parathormone, and insulin resistance in children born large for gestational age. J Pediatr Endocrinol Metab. 2014;27(11-12):1145-50.
Giapros, V. I., Challa, A. S., Cholevas, V. I., Evagelidou, E. N., Bairaktari, E. T., & Andronikou, S. K. (2014). Vitamin D, parathormone, and insulin resistance in children born large for gestational age. Journal of Pediatric Endocrinology & Metabolism : JPEM, 27(11-12), 1145-50. https://doi.org/10.1515/jpem-2013-0327
Giapros VI, et al. Vitamin D, Parathormone, and Insulin Resistance in Children Born Large for Gestational Age. J Pediatr Endocrinol Metab. 2014;27(11-12):1145-50. PubMed PMID: 24995403.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Vitamin D, parathormone, and insulin resistance in children born large for gestational age. AU - Giapros,Vasileios I, AU - Challa,Anna S, AU - Cholevas,Vasileios I, AU - Evagelidou,Eleni N, AU - Bairaktari,Eleni T, AU - Andronikou,Styliani K, PY - 2013/08/08/received PY - 2014/05/16/accepted PY - 2014/7/5/entrez PY - 2014/7/6/pubmed PY - 2015/1/30/medline SP - 1145 EP - 50 JF - Journal of pediatric endocrinology & metabolism : JPEM JO - J Pediatr Endocrinol Metab VL - 27 IS - 11-12 N2 - BACKGROUND: Low vitamin D [25(OH)D] levels have been associated with type-2 diabetes mellitus. Children born large for gestational age (LGA) may exhibit increased indices of insulin resistance early in life. OBJECTIVE: This study aims to prospectively examine serum 25(OH)D and parathormone (iPTH) levels in LGA and appropriate for gestational age (AGA) prepubertal children, in relation to the severity of macrosomia and insulin resistance. METHODS: Children were examined at age 5-7.5 years, 38 born LGA and 39 AGA, matched for age, gender, body weight, height and body mass index (BMI). Twenty-one LGA had birth weights in the 90th-97th percentile and 17 >97th percentile. Fasting serum levels of glucose, insulin, 25(OH)D, and iPTH were measured. The homeostasis model assessment for insulin resistance (HOMA-IR) was estimated. RESULTS: The insulin resistance indices were higher in the LGA >97th percentile subgroup than in the AGA group: HOMA-IR 1.53±0.66 vs. 1.04±0.53 and fasting insulin 6.92±3.1 vs. 4.78±2.2 μIU/mL (but similar to the AGA group), and in the LGA 90th-97th percentile subgroup: HOMA-IR 1.17±0.61 and insulin 5.53±2.2. There was no difference in 25(OH)D among the three subgroups. The iPTH was higher in the LGA >97th percentile subgroup than in the AGA group (26.8±7.6 and 22.6±7.2 pg/mL, respectively, p<0.05), although it was not correlated with insulin resistance indices. Birth weight was correlated negatively with fasting insulin and HOMA-IR in the entire cohort, independent of age, sex, waist circumference, and BMI (β=0.37, p<0.01 and β=0.30, p<0.05, respectively), while waist circumference was positively correlated with HOMA-IR (R=0.40, p<0.001). CONCLUSION: Birth weight and current body composition appear to affect glucose homeostasis in LGA prepubertal children, while the serum levels of 25(OH)D and iPTH appear to be uninvolved. SN - 2191-0251 UR - https://www.unboundmedicine.com/medline/citation/24995403/Vitamin_D_parathormone_and_insulin_resistance_in_children_born_large_for_gestational_age_ L2 - https://www.degruyter.com/document/doi/10.1515/jpem-2013-0327 DB - PRIME DP - Unbound Medicine ER -