Leptin, Leptin Soluble Receptor, and the Free Leptin Index following a Diet and Physical Activity Lifestyle Intervention in Obese Males and FemalesReportar como inadecuado




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Journal of Obesity - Volume 2016 2016, Article ID 8375828, 5 pages -

Research ArticleDepartment of Rehabilitation Science, George Mason University, 4400 University Drive, MS 2G7, Fairfax, VA 22030, USA

Received 19 July 2016; Revised 17 October 2016; Accepted 20 October 2016

Academic Editor: R. Prager

Copyright © 2016 Jeffrey E.
Herrick et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Leptin LEP is associated with appetite regulation and metabolism.
Concentration is linear with adiposity, suggesting LEP resistance.
LEP circulates freely and bound with its soluble receptor sOB-r; the ratio is the free leptin index FLI, an index of leptin resistance; lower FLI suggests reduced biological action.
Purpose.
The aim was to determine the effect of changes in adipose tissue distribution on LEP, sOB-r, and FLI following 6 months 6 M of a diet-exercise weight loss program WLP.
In addition, we aim to identify predictors of the FLI.
Methods.
6 M WLP consisted of diet-lifestyle interventions following ADA guidelines.
Body composition was assessed by DXA.
LEP and sOB-r analysis were done via ELISA.
Results.
10 adults completed the WLP.
Significant reductions were seen in total fat percentage % fat, nontrunk fat, NTF, and trunk fat TF from base to 3 m and 6 M .
The FLI were reduced at 3 M and 6 M for males and 6 M for females.
Total body fat and body weight predicted the FLI in both sexes.
Conclusions.
LEP and FLI reductions following 6 M of WLP were achieved independent of sOB-r changes.
We also demonstrate that the FLI can be predicted noninvasively through total fat mass and body weight in kilograms.






Autor: Jeffrey E.
Herrick, Gino S.
Panza, and Jared M.
Gollie


Fuente: https://www.hindawi.com/



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