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Open Access Research

Insulin resistance and adiponectin levels are associated with height catch-up growth in pre-pubertal Chinese individuals born small for gestational age

Hong-Zhu Deng12, Hong Deng3, Zhe Su2, Yan-Hong Li2, Hua-Mei Ma2, Hong-Shan Chen2 and Min-Lian Du2*

Author Affiliations

1 Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China

2 Department of Pediatrics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China

3 Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China

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Nutrition & Metabolism 2012, 9:107  doi:10.1186/1743-7075-9-107

Published: 28 November 2012

Abstract

Background and objective

The study was performed to determine whether catch-up growth is associated with the development of insulin resistance and to explore serum endocrine markers associated with the metabolism of adipose tissue in a Chinese population born small for gestational age(SGA)

Subjects and methods

We recruited 56 children born SGA with catch-up growth and 55 born without catch-up growth, who were further grouped into groups I (with BMI catch-up) and II (without BMI catch-up) respectively, as well as 52 children born appropriate for gestational age (AGA) with normal height. Their serum fasting insulin, fasting glucose, insulin-like growth factor-1, adiponectin, IGFBP-1, triglyceride concentrations, and the homeostasis assessment model for insulin resistance (HOMA-IR) were evaluated.

Results

(1) The HOMA-IR values in SGA-I with catch-up growth group were significantly higher than those in SGA-II with catch-up growth, SGA-I without catch-up growth and AGA children respectively. (2) The serum adiponectin levels of individuals in the SGA-I without catch-up growth and SGA-II with catch-up growth groups were significantly lower than those from the SGA-II without catch-up growth group. There was no difference in triglyceride or IGFBP-1 levels among the groups. (3) The degree of HOMA-IR was positively correlated with age, current BMI and â–³height SDS in SGA children.

Conclusion

The development of insulin resistance and lower levels of adiponectin were closely correlated with higher BMI and the postnatal height catch-up growth in SGA children.

Keywords:
Small for gestational age; Catch-up growth; Insulin resistance; Adiponectin