• Marie Amitani, Akihiro Asakawa, Haruka Amitani, Kaori Kaimoto, Nanami Sameshima, Ken Ichiro Koyama, Izumi Haruta, Minglun Tsai, Toshihiro Nakahara, Miharu Ushikai, Kai-Chun Cheng, Satoshi Hamada, and Akio Inui.
• Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
• Nutrition. 2013 Sep 1;29(9):1106-9.

ObjectiveThe aim of this study was to examine the associations of klotho with body mass index (BMI) in patients with restricting-type anorexia nervosa (r-AN) and obesity.MethodWe examined plasma klotho as well as adiponectin and its isoform levels in comparison in 11 obese patients, 12 r-AN patients, and 11 control participants.ResultsPlasma klotho levels were markedly lower in the obesity and r-AN groups than in the control group. Moreover, plasma klotho levels increased significantly after the recovery of BMI in r-AN patients. Total and high-molecular-weight adiponectin levels were significantly decreased only in obesity. There was no relationship between klotho and total adiponectin levels or klotho and respective adiponectin isoform levels in the entire study population.ConclusionsThese results suggest that klotho may reflect normal nutritional state, and that the decrease of klotho in r-AN and obesity may underlie the deteriorating processes of these disorders.Copyright © 2013 Elsevier Inc. All rights reserved.

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