Effects of diabetes family history and exercise training on the expression of adiponectin and leptin and their receptors

Moran, C.N., Barwell, N.D., Malkova, D. , Cleland, S., McPhee, I., Packard, C.J. , Zammit, V.A. and Gill, J.M.R. (2011) Effects of diabetes family history and exercise training on the expression of adiponectin and leptin and their receptors. Metabolism, 60(2), pp. 206-214. (doi:10.1016/j.metabol.2009.12.026)

Moran, C.N., Barwell, N.D., Malkova, D. , Cleland, S., McPhee, I., Packard, C.J. , Zammit, V.A. and Gill, J.M.R. (2011) Effects of diabetes family history and exercise training on the expression of adiponectin and leptin and their receptors. Metabolism, 60(2), pp. 206-214. (doi:10.1016/j.metabol.2009.12.026)

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Publisher's URL: http://dx.doi.org/10.1016/j.metabol.2009.12.026

Abstract

Daughters of diabetes patients have lower insulin sensitivity than women with no diabetes family history, but increase insulin sensitivity to a greater extent with exercise training. This study aimed to determine whether differences in circulating concentrations of adiponectin and leptin, and adipose tissue expression of their genes and receptors played a role. Women offspring of patients with type 2 diabetes mellitus (n = 34; age, 35.6 ± 7.0 years; body mass index, 28.1 ± 5.1 kg/m2) and matched controls with no diabetes family history (n = 36; age, 33.6 ± 6.1 years; body mass index, 27.3 ± 4.7 kg/m2) participated. Blood and abdominal subcutaneous adipose tissue samples were obtained at baseline and after a controlled 7-week endurance-type exercise intervention (sessions were performed at 65%-80% of maximum heart rate). At baseline, no significant differences were observed between groups in circulating leptin or adiponectin concentrations, or expression of their genes or receptors. In response to exercise, plasma leptin decreased more in offspring than controls (−32.2% vs −7.3%, P = .005 for interaction); and the long isoform of the leptin receptor messenger RNA (mRNA) increased significantly only in the offspring (+39.4%, P = .026 vs +7.7%, P = .892). Leptin mRNA decreased similarly in both groups (−24.7% vs −25.0%, P < .05 for both). Furthermore, changes in plasma leptin (r = −0.432, P < .001) and leptin mRNA (r = −0.298, P = .019) correlated significantly with changes in insulin sensitivity. Plasma adiponectin decreased similarly in both groups (−12.1% vs −15.2%, P < .01 for both), but no significant changes were observed in adiponectin-related gene expression. This work shows that exercise training has differing effects on leptin-related variables between women with and without a diabetes family history and suggests that these molecular differences may contribute to the differential effects of exercise training on insulin sensitivity between these 2 groups.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Malkova, Dr Dale and Gill, Professor Jason and Barwell, Dr Nicholas and Moran, Dr Colin and Cleland, Dr Stephen and Packard, Professor Chris
Authors: Moran, C.N., Barwell, N.D., Malkova, D., Cleland, S., McPhee, I., Packard, C.J., Zammit, V.A., and Gill, J.M.R.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences
College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Clinical Specialities
Journal Name:Metabolism
ISSN:0026-0495

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
367041Physical activity, insulin resistance and adipose tissue gene expression in the offspring of patients with type 2 diabetesJason GillBritish Heart Foundation (BHF)PG/03/145/16263Institute of Cardiovascular and Medical Sciences