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BioMed Research International
Volume 2013 (2013), Article ID 202757, 5 pages
http://dx.doi.org/10.1155/2013/202757
Research Article

Serum Ghrelin Is Associated with Verbal Learning and Adiposity in a Sample of Healthy, Fit Older Adults

1Department of Kinesiology, University of Louisiana Lafayette, 225 Cajundome Boulevard, Lafayette, LA 70504, USA
2School of Health Sciences, Exercise Science Laboratory, Kent State University, Kent, OH 44243, USA
3School of Physical Education, Sport and Exercise Science, Ball State University, Munice, IN 47306, USA
4Department of Psychology, Kent State University, Kent, OH 44243, USA
5Department of Psychiatry, Summa Health System, Akron, OH 44304, USA

Received 10 April 2013; Revised 7 June 2013; Accepted 24 June 2013

Academic Editor: Mamoru Tanida

Copyright © 2013 David Bellar 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

The purpose of the present investigation was to determine the relationship between serum ghrelin concentrations, adiposity, and verbal learning in a group of healthy, fit older adults. Participants were 28 healthy older adults (age: yrs, BMI: ). Participants reported to the laboratory and basic anthropometric data were collected, followed by a blood draw to quantify serum ghrelin. Participants then underwent cognitive testing that included the revised Hopkins Verbal Learning Test (HVLT), as well as the Mini-Mental Status Exam (MMSE). The results of the MMSE test revealed that the volunteers were cognitively intact (MMSE ). A significant correlation emerged between serum ghrelin concentrations, 2 trials of the HVLT (Trial 1: , ; Trial 2: , ), and the sum of three-site skinfold analysis ( ). Based upon the aforementioned relationships, it appears that fasting levels of serum ghrelin are related to both verbal learning and adiposity in healthy, fit older adults.