A genetic contribution to circulating cytokines and obesity in children

被引：16

作者：

Cai, Guowen ^{[1
]}

Cole, Shelley A. ^{[2
]}

Butte, Nancy F. ^{[1
]}

Smith, C. Wayne ^{[1
]}

Mehta, Nitesh R. ^{[1
]}

Voruganti, V. Saroja ^{[2
]}

Proffitt, J. Michael ^{[2
]}

Comuzzie, Anthony G. ^{[2
]}

机构：

[1] Baylor Coll Med, USDA ARS, Childrens Nutr Res Ctr, Houston, TX 77030 USA

[2] SW Fdn Biomed Res, Dept Genet, San Antonio, TX USA

来源：

CYTOKINE | 2008年 / 44卷 / 02期

关键词：

Cytokines; Childhood obesity; Genome-wide scan; Inflammation;

D O I：

10.1016/j.cyto.2008.08.006

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Cytokines are considered to be involved in obesity-related metabolic diseases. Study objectives are to determine the heritability of circulating cytokine levels, to investigate pleiotropy between cytokines and obesity traits, and to present genome scan results for cytokines in 1030 Hispanic children enrolled in VIVA LA FAMILIA Study. Cytokine phenotypes included monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-alpha (TNF-alpha), leptin, adiponectin, soluble intercellular adhesion molecule-1 (sICAM-1), transforming growth factor beta 1 (TGF-beta 1), C-reactive protein (CRP), regulated upon activation, normal T-cell expressed and secreted (RANTES) and eotaxin. Obesity-related phenotypes included body mass index (BMI), fat mass (FM), truncal FM and fasting serum insulin. Heritabilities ranged from 0.33 to 0.97. Pleiotropy was observed between cytokines and obesity traits. Positive genetic correlations were seen between CRP, leptin, MCP-1 and obesity traits, and negative genetic correlations with adiponectin, ICAM-1 and TGF-beta 1. Genome-wide scan of sICAM-1 mapped to chromosome 3 (LOD = 3.74) between markers D3S1580 and D3S1601, which flanks the adiponectin gene (ADIPOQ). Suggestive linkage signals were found in other chromosomal regions for other cytokines. In summary, significant heritabilities for circulating cytokines, pleiotropy between cytokines and obesity traits, and linkage for sICAM-1 on chromosome 3q substantiate a genetic contribution to circulating cytokine levels in Hispanic children. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：242 / 247

页数：6

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