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Insulin Resistance and the IGF-I-Cortical Bone Relationship in Children Ages 9 to 13 Years.


ABSTRACT: IGF-I is a pivotal hormone in pediatric musculoskeletal development. Although recent data suggest that the role of IGF-I in total body lean mass and total body bone mass accrual may be compromised in children with insulin resistance, cortical bone geometric outcomes have not been studied in this context. Therefore, we explored the influence of insulin resistance on the relationship between IGF-I and cortical bone in children. A secondary aim was to examine the influence of insulin resistance on the lean mass-dependent relationship between IGF-I and cortical bone. Children were otherwise healthy, early adolescent black and white boys and girls (ages 9 to 13 years) and were classified as having high (n?=?147) or normal (n?=?168) insulin resistance based on the homeostasis model assessment of insulin resistance (HOMA-IR). Cortical bone at the tibia diaphysis (66% site) and total body fat-free soft tissue mass (FFST) were measured by peripheral quantitative computed tomography (pQCT) and dual-energy X-ray absorptiometry (DXA), respectively. IGF-I, insulin, and glucose were measured in fasting sera and HOMA-IR was calculated. Children with high HOMA-IR had greater unadjusted IGF-I (p?

SUBMITTER: Kindler JM 

PROVIDER: S-EPMC5489353 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Insulin Resistance and the IGF-I-Cortical Bone Relationship in Children Ages 9 to 13 Years.

Kindler Joseph M JM   Pollock Norman K NK   Laing Emma M EM   Oshri Assaf A   Jenkins Nathan T NT   Isales Carlos M CM   Hamrick Mark W MW   Ding Ke-Hong KH   Hausman Dorothy B DB   McCabe George P GP   Martin Berdine R BR   Hill Gallant Kathleen M KM   Warden Stuart J SJ   Weaver Connie M CM   Peacock Munro M   Lewis Richard D RD  

Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research 20170701 7


IGF-I is a pivotal hormone in pediatric musculoskeletal development. Although recent data suggest that the role of IGF-I in total body lean mass and total body bone mass accrual may be compromised in children with insulin resistance, cortical bone geometric outcomes have not been studied in this context. Therefore, we explored the influence of insulin resistance on the relationship between IGF-I and cortical bone in children. A secondary aim was to examine the influence of insulin resistance on  ...[more]

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