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Gastric Aspiration Improves Postprandial Glucose Tolerance Without Causing a Compensatory Increase in Appetite and Food Intake

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INTRODUCTION: AspireAssist® allows aspiration of ~30% of an ingested meal through a percutaneous gastrostomy tube, reducing caloric uptake. We evaluated the acute effects of gastric aspiration on postprandial glucose tolerance, responses of gluco-regulatory and appetite-regulating hormones, appetite sensations, and food intake.

METHODS: Seven AspireAssist®-treated individuals underwent two separate experimental days each involving a mixed meal test (MMT) with double-blinded aspiration and sham aspiration, respectively. Seven age and body mass index (BMI)-matched controls underwent one MMT. MMTs were followed by an ad libitum meal.

RESULTS: Postprandial glucose tolerance was improved during aspiration vs. sham visits (median [interquartile range] baseline-subtracted area under the curve (bsAUC) 170 [88.4;356] vs. 388 [239;456] mmol/L × min, p = 0.025). Reduced responses (bsAUCs) of C-peptide (113 [28.4;224] vs. 302 [215;433] nmol/L × min, p = 0.014), cholecystokinin (223 [59.4;402] vs. 467 [416;546] pmol/L × min, p = 0.005), glucose-dependent insulinotropic polypeptide (4.63 [1.49;9.04] vs. 15.4 [9.59;18.9] nmol/L × min, p = 0.025), and glucagon-like peptide 1 (532.8 [274.5;1,278] vs. 1,296 [746.2;1,618] pmol/L × min, p = 0.032) were observed during aspiration vs. sham visits. Responses of glucagon, gastrin, ghrelin and peptide YY, appetite sensations, and ad libitum food intake were unaffected by aspiration. Responses of plasma glucose, gut hormones, appetite sensations, and food intake were similar during sham and control visits.

CONCLUSION: Gastric aspiration improved postprandial glucose tolerance without causing compensatory increases in appetite or food intake, pointing to acute beneficial metabolic effects of aspiration therapy together with previously reported body weight-lowering effects.

Original languageEnglish
JournalObesity Surgery
Volume32
Issue number4
Pages (from-to)1385-1390
Number of pages6
ISSN0960-8923
DOIs
Publication statusPublished - Apr 2022

Bibliographical note

© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

    Research areas

  • Aspiration therapy, AspireAssist®, Gastric aspiration, Obesity treatment

ID: 74076807