Simone Perna1, Daniele Spadaccini2, Clara Gasparri2, Gabriella Peroni2, Vittoria Infantino3, Giancarlo Iannello4, Antonella Riva5, Giovanna Petrangolini5, Tariq A Alalwan1, Salwa Al-Thawadi1, Mariangela Rondanelli3,6. 1. Department of Biology, College of Science, University of Bahrain, Sakhir, Kingdom of Bahrain. 2. Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona 'Istituto Santa Margherita', University of Pavia, Pavia, Italy. 3. Department of Public Health, Experimental and Forensic Medicine, Unit of Human and Clinical Nutrition, University of Pavia, Pavia, Italy. 4. General Management, Azienda di Servizi alla Persona 'Istituto Santa Margherita', Pavia, Italy. 5. Research and Development Department, Indena SpA, Milan, Italy. 6. IRCCS Mondino Foundation, Pavia, Italy.
Abstract
Background: This study aimed to analyse the impact of des-acyl and acyl ghrelin (AG) on a wide range of muscular and metabolic markers and in order to discover the possible relationships and interactions of des-acylated ghrelin (DAG) on eating disorders.Materials & Methods: A total of 88 subjects (64 women and 24 men, with a mean age of 43 years and a mean body mass index (BMI) of 30.20 ± 3.27 kg/m2) were enrolled in the cross-sectional study. Results: The findings showed that for each unit of increase of free fat mass index (FFMI), levels of DAG decreased by -41.11 pg/mL (p < 0.05). Moreover, similar associations with DAG were found for insulin (β = -30.67; p < 0.001), leptin (β = -0.64; p < 0.05), body weight (β = -14.36; p < 0.001), and free fat mass (FFM) (β = -30.67; p < 0.001). In addition, associations were found between DAG and resting energy expenditure (REE) (β = -0.84; p = 0.05) and the binge eating scale (BES) in which a unit increase of the BES score Q3 (depression) correlated with a decrease of DAG levels (β = -9.98; p = 0.08). Further, a unit increase of AG/DAG ratio correspond with an increase in body weight (β = 12.20; p < 0.05), BMI (β = 4.70; p < 0.05) and fat mass (β = 7.30; p < 0.05). However, the AG/DAG ratio was not associated with FFMI (β = 2.61; p = 0.165) and FFML/BMI (β = -0,064; p = 0.625). Conclusion: This study suggests that higher levels of DAG at fasting are indices of poor muscle mass, insulin resistance and depression.
Background: This study aimed to analyse the impact of des-acyl and acyl ghrelin (AG) on a wide range of muscular and metabolic markers and in order to discover the possible relationships and interactions of des-acylated ghrelin (DAG) on eating disorders.Materials & Methods: A total of 88 subjects (64 women and 24 men, with a mean age of 43 years and a mean body mass index (BMI) of 30.20 ± 3.27 kg/m2) were enrolled in the cross-sectional study. Results: The findings showed that for each unit of increase of free fat mass index (FFMI), levels of DAG decreased by -41.11 pg/mL (p < 0.05). Moreover, similar associations with DAG were found for insulin (β = -30.67; p < 0.001), leptin (β = -0.64; p < 0.05), body weight (β = -14.36; p < 0.001), and free fat mass (FFM) (β = -30.67; p < 0.001). In addition, associations were found between DAG and resting energy expenditure (REE) (β = -0.84; p = 0.05) and the binge eating scale (BES) in which a unit increase of the BES score Q3 (depression) correlated with a decrease of DAG levels (β = -9.98; p = 0.08). Further, a unit increase of AG/DAG ratio correspond with an increase in body weight (β = 12.20; p < 0.05), BMI (β = 4.70; p < 0.05) and fat mass (β = 7.30; p < 0.05). However, the AG/DAG ratio was not associated with FFMI (β = 2.61; p = 0.165) and FFML/BMI (β = -0,064; p = 0.625). Conclusion: This study suggests that higher levels of DAG at fasting are indices of poor muscle mass, insulin resistance and depression.
Entities:
Keywords:
Ghrelin; body composition; des-acyl ghrelin; energy expenditure; leptin; muscle; muscle atrophy; satiety