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Maternal Obesity Is Associated with the Formation of Small Dense LDL and Hypoadiponectinemia in the Third Trimester.

Meyer, BJ, Stewart, FM, Brown, EA, Cooney, J, Nilsson, S, Olivecrona, G, Ramsay, JE, Griffin, BA, Caslake, MJ and Freeman, DJ (2013) Maternal Obesity Is Associated with the Formation of Small Dense LDL and Hypoadiponectinemia in the Third Trimester. J Clin Endocrinol Metab.

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Abstract

Context:Maternal obesity is associated with high plasma triglyceride, poor vascular function, and an increased risk for pregnancy complications. In normal-weight pregnant women, higher triglyceride is associated with increased small, dense low-density lipoprotein (LDL).Hypothesis:In obese pregnancy, increased plasma triglyceride concentrations result in triglyceride enrichment of very low-density lipoprotein-1 particles and formation of small dense LDL via lipoprotein lipase.Design:Women (n = 55) of body mass index of 18-46 kg/m(2) were sampled longitudinally at 12, 26, and 35 weeks' gestation and 4 months postnatally.Setting:Women were recruited at hospital antenatal appointments, and study visits were in a clinical research suite.Outcome Measures:Plasma concentrations of lipids, triglyceride-rich lipoproteins, lipoprotein lipase mass, estradiol, steroid hormone binding globulin, insulin, glucose, leptin, and adiponectin were determined.Results:Obese women commenced pregnancy with higher plasma triglyceride, reached the same maximum, and then returned to higher postnatal levels than normal-weight women. Estradiol response to pregnancy (trimester 1-3 incremental area under the curve) was positively associated with plasma triglyceride response (r(2) adjusted 25%, P < .001). In the third trimester, the proportion of small, dense LDL was 2-fold higher in obese women than normal-weight women [mean (SD) 40.7 (18.8) vs 21.9 (10.9)%, P = .014], and 35% of obese, 14% of overweight, and none of the normal-weight women displayed an atherogenic LDL subfraction phenotype. The small, dense LDL mass response to pregnancy was inversely associated with adiponectin response (17%, P = .013).Conclusions:Maternal obesity is associated with an atherogenic LDL subfraction phenotype and may provide a mechanistic link to poor vascular function and adverse pregnancy outcome.

Item Type: Article
Authors :
NameEmailORCID
Meyer, BJUNSPECIFIEDUNSPECIFIED
Stewart, FMUNSPECIFIEDUNSPECIFIED
Brown, EAUNSPECIFIEDUNSPECIFIED
Cooney, JUNSPECIFIEDUNSPECIFIED
Nilsson, SUNSPECIFIEDUNSPECIFIED
Olivecrona, GUNSPECIFIEDUNSPECIFIED
Ramsay, JEUNSPECIFIEDUNSPECIFIED
Griffin, BAb.griffin@surrey.ac.ukUNSPECIFIED
Caslake, MJUNSPECIFIEDUNSPECIFIED
Freeman, DJUNSPECIFIEDUNSPECIFIED
Date : 21 January 2013
Identification Number : https://doi.org/10.1210/jc.2012-3481
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 09:49
Last Modified : 17 May 2017 14:45
URI: http://epubs.surrey.ac.uk/id/eprint/825287

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