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Horm Metab Res 2002; 34(2): 77-80
DOI: 10.1055/s-2002-20519
Original Clinical

© Georg Thieme Verlag Stuttgart · New York

GLP-1 as a Satiety Factor in Children with Eating Disorders

P.  J.  Tomasik1 , K.  Sztefko1 , A.  Malek1
  • 1Department of Clinical Biochemistry, Polish-American Children’s Hospital, Faculty of Medicine, Jagiellonian University, Krakow, Poland
Further Information

Publication History

23 April 2001

31 October 2001

Publication Date:
04 March 2002 (online)

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Abstract

GLP-1, with its insulinotropic properties and direct action on satiety center in the brain, may be the main hormone regulating the amount of ingested food. In this study, GLP-1 secretion was investigated in age-matched adolescent girls (14 ± 2 years): 13 with anorexia nervosa (BMI 14.8 ± 1.4 kg/m2), 13 with simple obesity (BMI 33.0 ± 3.3 kg/m2) and 10 healthy girls as a control group (BMI 21.6 ± 0.7 kg/m2). Each girl was subjected to OGTT and standard meal tests after a 12 h overnight fast. Blood samples were collected before and 15, 30, 60, and 120 min after the stimulation. The mean fasted GLP-1 levels in simple obesity group (1.6 ± 0.3 pmol/l) and in anorexia nervosa group (1.7 ± 0.3 pmol/l) were significantly lower than those in the control group (2.6 ± 0.4 pmol/l) (p < 0.05 in both cases). The highest peak concentration of GLP-1 was observed in the control group after both stimuli. In each group, the mean integrated GLP-1 outputs were almost twice as high after OGTT than after the test meal (p < 0.001 in each case). In our opinion, low secretion of GLP-1 in girls with simple obesity may seriously and negatively influence the course of this disease. On the other hand, low GLP-1 levels in girls with anorexia nervosa are beneficial and promote appetite.

Key words

Simple Obesity - Anorexia Nervosa - Appetite

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P. Tomasik

Department of Clinical Biochemistry · Polish-American Children’s Hospital ·

Wielicka St 265 · 30-663 Krakow · Poland

Email: mitomasi@cyf-kr.edu.pl