Background: Sex-based differences in appetite ratings have been observed previously. Ghrelin is the only known orexigenic peptide hormone. Sex differences in postprandial ghrelin responses may underlie different perceptions of hunger and satiety, but results are conflicting. We conducted a parallel study to evaluate sex differences in postprandial appetite ratings and ghrelin concentration after administration of a physiological meal among students of University of Milan. Methods: Twenty-four healthy, normal weight volunteers (12 men and 12 women) aged 18–35 years were recruited. A balanced mixed meal meeting 40% of the estimated daily energy expenditure and providing 60% of calories from carbohydrates, 25% from lipids and 15% from protein was administrated. Sex differences in appetite ratings (satiety, hunger, fullness and desire to eat) and magnitude of ghrelin suppression during postprandial period (up to 180 min) were determined. Results: In the fasting state, men and women did not differ in appetite ratings and ghrelin concentrations. After feeding, women tended to reach peak of satiety earlier than men, who in turn reached the nadir of hunger later than women (median: 30 min, interquartile range (IQR): 1; 120 vs. 1 min, IQR 1; 1, p = 0.007). Ghrelin suppression was greater in women (median decremental AUC − 95, IQR − 122; − 66) than in men (median decremental AUC − 47, IQR − 87; − 31, p = 0.041). Conclusions: These findings suggest sex differences in the postprandial appetite regulation that might be important for nutritional strategy to prevent and treat obesity and eating disorders.

Appetite ratings and ghrelin concentrations in young adults after administration of a balanced meal. Does sex matter? / A. Leone, R. De Amicis, M. Pellizzari, S. Bertoli, S. Ravella, A. Battezzati. - In: BIOLOGY OF SEX DIFFERENCES. - ISSN 2042-6410. - 13:(2022 Jun 04), pp. 25.1-25.10. [10.1186/s13293-022-00434-2]

Appetite ratings and ghrelin concentrations in young adults after administration of a balanced meal. Does sex matter?

A. Leone
Primo
;
R. De Amicis;M. Pellizzari;S. Bertoli;S. Ravella
Penultimo
;
A. Battezzati
Ultimo
2022-06-04

Abstract

Background: Sex-based differences in appetite ratings have been observed previously. Ghrelin is the only known orexigenic peptide hormone. Sex differences in postprandial ghrelin responses may underlie different perceptions of hunger and satiety, but results are conflicting. We conducted a parallel study to evaluate sex differences in postprandial appetite ratings and ghrelin concentration after administration of a physiological meal among students of University of Milan. Methods: Twenty-four healthy, normal weight volunteers (12 men and 12 women) aged 18–35 years were recruited. A balanced mixed meal meeting 40% of the estimated daily energy expenditure and providing 60% of calories from carbohydrates, 25% from lipids and 15% from protein was administrated. Sex differences in appetite ratings (satiety, hunger, fullness and desire to eat) and magnitude of ghrelin suppression during postprandial period (up to 180 min) were determined. Results: In the fasting state, men and women did not differ in appetite ratings and ghrelin concentrations. After feeding, women tended to reach peak of satiety earlier than men, who in turn reached the nadir of hunger later than women (median: 30 min, interquartile range (IQR): 1; 120 vs. 1 min, IQR 1; 1, p = 0.007). Ghrelin suppression was greater in women (median decremental AUC − 95, IQR − 122; − 66) than in men (median decremental AUC − 47, IQR − 87; − 31, p = 0.041). Conclusions: These findings suggest sex differences in the postprandial appetite regulation that might be important for nutritional strategy to prevent and treat obesity and eating disorders.
sex differences; mixed meal; ghrelin; satiety; hunger; energy expenditure
Settore MED/49 - Scienze Tecniche Dietetiche Applicate
Settore BIO/09 - Fisiologia
Centro Internazionale per lo Studio della Composizione Corporea ICANS
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/930347
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