Impaired Gastric Myoelectrical Reactivity in Children and Adolescents with Obesity Compared to Normal-Weight Controls
by
Katja Weimer 1,2
, Helene Sauer 2, Bjoern Horing 3, Francesco Valitutti 4, Nazar Mazurak 2, Stephan Zipfel 2, Andreas Stengel 2,5, Paul Enck 2 and Isabelle Mack 2,*
Katja Weimer 1,2, Helene Sauer 2, Bjoern Horing 3, Francesco Valitutti 4, Nazar Mazurak 2, Stephan Zipfel 2, Andreas Stengel 2,5, Paul Enck 2 and Isabelle Mack 2,*
1
Clinic for Psychosomatic Medicine and Psychotherapy, University Hospital Ulm, 89081 Ulm, Germany
2
Department of Psychosomatic Medicine and Psychotherapy, University Medical Hospital Tübingen, 72076 Tübingen, Germany
3
Institute of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
4
Pediatric Gastroenterology and Liver Unit, Department of Pediatrics, Sapienza University of Rome, 00161 Rome, Italy
5
Department for Psychosomatic Medicine, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, 12200 Berlin, Germany
*
Author to whom correspondence should be addressed.
Nutrients 2018, 10(6), 699; https://doi.org/10.3390/nu10060699
Received: 31 March 2018 / Revised: 27 May 2018 / Accepted: 29 May 2018 / Published: 31 May 2018
(This article belongs to the Special Issue Nutrition in Pediatric Gastroenterology: Selected Papers from SIGENP)
Obesity often has its onset in childhood and can be accompanied by various comorbidities such as functional gastrointestinal disorders and altered gastric myoelectrical activity (GMA). This study investigates whether obesity in childhood and adolescence is already associated with altered GMA, and whether an inpatient weight loss program affects GMA. Sixty children with obesity (OBE) and 27 normal-weight children (NW) (12.9 ± 1.7 years; 51% female) were compared for their GMA at rest, after a stress test, and after a drink-to-full water load test. A continuous electrogastrogram (EGG) was recorded and analyzed with respect to gastric slow waves and tachygastric activity. OBE were examined upon admission (T1) and before discharge (T2) following an inpatient weight loss program; NW served as control group. Compared to NW, children with obesity showed flattened GMA as indicated by lower tachygastric reactivity after stress and water load test at T1. Data of OBE did not differ between T1 and T2. EGG parameters were associated neither with sex, age, and BMI nor with subjective stress and food intake. Children with obesity show impaired gastric myoelectrical reactivity in response to a stress and water load test compared to normal-weight controls, which does not change during an inpatient weight loss program.
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Keywords:
obesity; stress; gastric myoelectrical reactivity; brain-gut axis; autonomic nervous system; psychosomatic
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MDPI and ACS Style
Weimer, K.; Sauer, H.; Horing, B.; Valitutti, F.; Mazurak, N.; Zipfel, S.; Stengel, A.; Enck, P.; Mack, I. Impaired Gastric Myoelectrical Reactivity in Children and Adolescents with Obesity Compared to Normal-Weight Controls. Nutrients 2018, 10, 699.
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