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J Endocr Soc. 2018 Feb 02;2(3):232-239. doi: 10.1210/js.2017-00437. eCollection 2018 Mar 01.

Plasma IL-1 Receptor Antagonist Concentration Has an Inverse Association With Birth Weight in Prepubertal Children.

Journal of the Endocrine Society

Henrikki Nordman, Raimo Voutilainen, Leena Antikainen, Jarmo Jääskeläinen

Affiliations

  1. Department of Pediatrics, University of Eastern Finland and Kuopio University Hospital, FI-70211 Kuopio, Finland.

PMID: 29594257 PMCID: PMC5841182 DOI: 10.1210/js.2017-00437

Abstract

CONTEXT: Birth size has an impact on later cardiometabolic risk that is strongly related to low-grade inflammation.

OBJECTIVE: To evaluate plasma interleukin-1 receptor antagonist (IL-1ra) concentrations in relation to birth size and cardiometabolic and inflammatory markers in prepubertal children.

DESIGN: A cohort study. Anthropometric data were recorded. Fasting blood samples were collected for plasma analyses of IL-1ra, alanine transaminase, total cholesterol, high- and low-density lipoprotein cholesterols, triglyceride, glucose, and serum analyses of 25-hydroxyvitamin D [25(OH)D] and high-sensitivity C-reactive protein (hs-CRP) concentrations.

PARTICIPANTS: Forty-nine large for gestational age (LGA), 56 appropriate for gestational age, and 23 small for gestational age (SGA) children at 5 to 8 years of age were examined.

MAIN OUTCOME MEASURES: Differences in IL-1ra concentrations among the birth-size groups and associations between IL-1ra and other metabolic markers were assessed.

RESULTS: Body mass index (BMI) standard deviation score (SDS)-adjusted plasma IL-1ra concentrations were highest in the SGA- and lowest in the LGA-born children (

CONCLUSIONS: Prepubertal children born SGA had the highest and those born LGA the lowest IL-1ra concentrations in this study cohort. Most associations found between IL-1ra and the studied metabolic parameters were weight related, but the association with hs-CRP remained strong after adjustment for BMI. It seems that at prepuberty, SGA children have a stronger inflammatory state than LGA children and may thus be at a greater risk for later metabolic disturbances.

Keywords: birth size; cardiometabolic risk; catch-up growth; large for gestational age; low-grade inflammation; small for gestational age

Conflict of interest statement

The funders had no role in the following: (1) study design; (2) the collection, analysis, and interpretation of data; (3) the writing of the report; and (4) the decision to submit the paper for public

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