首页 | 本学科首页   官方微博 | 高级检索  
     


Polyunsaturated fatty acids in plasma lipids of obese children with and without metabolic cardiovascular syndrome
Authors:Tamás Decsi  Györgyi Csabi  Katalin Török  Éva Erhardt  Hajnalka Minda  István Burus  Szilárd Molnár  Dénes Molnár
Affiliation:(1) Department of Paediatrics, University of Pécs, József A. u. 7, H-7623 Pécs, Hungary
Abstract:Previously we reported significantly higher values of γ-linolenic acid (GLA, 18∶3n−6), dihomo-γ-linolenic acid (DHGLA, 20∶3n−6), and arachidonic acid (20∶4n−6) in plasma lipid classes in obese children than in nonobese controls. In the present study, fatty acid composition of plasma phospholipids (PL) and sterol esters (STE) was determined by high-resolution capillary gas-liquid chromatography in obese children with an without metabolic cardiovascular syndrome [MCS: defined as simultaneous presence of (i) dyslipidemia, (ii) hyperinsulinemia, (iii) hypertension, and (iv) impaired glucose tolerance] and in nonobese controls. Fatty acid composition of PL and STE lipids did not differ between obese children without MCS and controls. Obese children with MCS exhibited significantly lower linoleic acid (LA, 18∶2n−6) values in PL (17.43 [2.36], %wt/wt, median [range from the first to the third quartile]) than obese children without MCS (19.14 [3.49]) and controls (20.28 [3.80]). In contrast, PL GLA values were significantly higher in obese children with (0.13 [0.08]) than in those without MCS (0.08 [0.04]), whereas STE GLA values were higher in obese children with MCS (1.04 [0.72]) than in controls (0.62 [0.48]). DHGLA values in PL were significantly higher in obese children with MCS (4.06 [0.74]) than in controls (2.69 [1.60]). The GLA/LA ratio was significantly higher, whereas the AA/DHGLA ratio was significantly lower in obese children with MCS than in obese children without MCS and in controls. In this study, LA metabolism was affected only in obese children with but not in those without MCS. In obese children with MCS, δ6-desaturase activity appeared to be stimulated, whereas δ5-desaturase activity appeared to be inhibited. Disturbances in LA metabolism may represent an additional health hazard within the multifaceted clinical picture of MCS.
Keywords:
本文献已被 PubMed SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号