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Longitudinal changes in adipokines and free leptin index during and after pregnancy in women with obesity.

Journal article
Authors Ulrika Andersson Hall
Pernilla Svedin
Henrik Svensson
Malin Lönn
Carina Mallard
Agneta Holmäng
Published in International journal of obesity
Volume 44
Pages 675-683
ISSN 1476-5497
Publication year 2020
Published at Institute of Neuroscience and Physiology, Department of Physiology
Department of Laboratory Medicine
Pages 675-683
Language en
Links dx.doi.org/10.1038/s41366-019-0452-...
www.ncbi.nlm.nih.gov/entrez/query.f...
Subject categories Endocrinology and Diabetes, Clinical physiology

Abstract

Detailed data on adipokines and body composition during and after pregnancy in women of different BMI categories are lacking. Furthermore, adipokine regulation during pregnancy and the factors contributing to gestational insulin resistance are not completely understood. The objective was to longitudinally determine adipokine levels, body composition, and insulin sensitivity during and after pregnancy in women of healthy weight (HW) and with obesity (OB), and identify factors associated with insulin resistance.Women (30 HW, 19 OB) underwent blood sampling and body composition examination, by air-displacement plethysmography, longitudinally during pregnancy (trimesters 1, 2, 3) and after pregnancy (6, 12, 18 months postpartum). Serum leptin, soluble leptin receptor (sOB-R), and adiponectin levels were measured and free leptin index (FLI) and homeostatic model assessment of insulin resistance (HOMA-IR) determined.Fat mass and leptin increased during pregnancy in the HW (p < 0.01) but not in the OB group. sOB-R increased during pregnancy in both groups (p < 0.001). Thus, FLI was unchanged in HW throughout pregnancy but reduced in OB (p = 0.001), although consistently higher in OB. Adiponectin decreased in both groups during pregnancy (p < 0.001 for HW, p = 0.01 for OB). After pregnancy, adiponectin increased in both groups, but more markedly in OB where it reached trimester 1 levels. Multivariable regression identified FLI as the variable most strongly associated with HOMA-IR in all trimesters, but not after pregnancy.Leptin, sOB-R, adiponectin, and FLI undergo marked changes during and after pregnancy with differences in women of different BMI. We suggest that leptin activity is regulated by its soluble receptor and that this is an important factor for optimizing fat mass and insulin sensitivity during pregnancy.

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Utskriftsdatum: 2020-07-10