Y Nakatani1, M Maeda2, M Matsumura3, R Shimizu4, N Banba5, Y Aso3, T Yasu4, H Harasawa6. 1. Department of Diabetes and Endocrinology, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan. Electronic address: yu-naka@dokkyomed.ac.jp. 2. Department of Gastroenterology, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan. 3. Department of Endocrinology and Metabolism, Dokkyo Medical University, 880, Kitakobayashi Shimotsugagun Mibumachi, 321-0293 Tochigi, Japan. 4. Department of Cardiovascular Medicine, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan. 5. Department of Diabetes and Endocrinology, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan. 6. Department of Pulmonary Medicine, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan.
Abstract
AIM: This study evaluated the effects of a glucagon-like peptide-1 receptor agonist on gastrointestinal (GI) tract motility and residue rates by examining GI transit time and lumen using capsule endoscopy. MATERIAL AND METHODS: GI motility and lumen were assessed by capsule endoscopy before and after liraglutide administration in 14 patients with type 2 diabetes mellitus (T2DM). RESULTS: Gastric transit time in the group with diabetic neuropathy (DN) was 1:12:36±1:04:30h before liraglutide administration and 0:48:40±0:32:52h after administration (nonsignificant difference, P=0.19). Gastric transit time in the non-DN group was 1:01:30±0:52:59h before administration and 2:33:29±1:37:24h after administration (significant increase, P=0.03). Duodenal and small intestine transit time in the DN group was 4:10:34±0:25:54h before and 6:38:42±3:52:42h after administration (not significant, P=0.09) and, in the non-DN group, 3:51:03±0:53:47h before and 6:45:31±2:41:36h after administration (significant increase, P=0.03). The GI residue rate in the DN group was 32.1±24% before administration and 90.0±9.1% after administration (significant increase, P<0.001), and increased in all patients; in the non-DN group, it was 32.1±35.3% before and 78.3±23.9% after administration (significant increase, P<0.001), and also increased in all patients. CONCLUSION: Liraglutide causes delayed gastric emptying and inhibits duodenal and small intestine motility. However, these GI movement-inhibiting effects may be decreased or absent in patients with DN-associated dysautonomia.
AIM: This study evaluated the effects of a glucagon-like peptide-1 receptor agonist on gastrointestinal (GI) tract motility and residue rates by examining GI transit time and lumen using capsule endoscopy. MATERIAL AND METHODS: GI motility and lumen were assessed by capsule endoscopy before and after liraglutide administration in 14 patients with type 2 diabetes mellitus (T2DM). RESULTS: Gastric transit time in the group with diabetic neuropathy (DN) was 1:12:36±1:04:30h before liraglutide administration and 0:48:40±0:32:52h after administration (nonsignificant difference, P=0.19). Gastric transit time in the non-DN group was 1:01:30±0:52:59h before administration and 2:33:29±1:37:24h after administration (significant increase, P=0.03). Duodenal and small intestine transit time in the DN group was 4:10:34±0:25:54h before and 6:38:42±3:52:42h after administration (not significant, P=0.09) and, in the non-DN group, 3:51:03±0:53:47h before and 6:45:31±2:41:36h after administration (significant increase, P=0.03). The GI residue rate in the DN group was 32.1±24% before administration and 90.0±9.1% after administration (significant increase, P<0.001), and increased in all patients; in the non-DN group, it was 32.1±35.3% before and 78.3±23.9% after administration (significant increase, P<0.001), and also increased in all patients. CONCLUSION: Liraglutide causes delayed gastric emptying and inhibits duodenal and small intestine motility. However, these GI movement-inhibiting effects may be decreased or absent in patients with DN-associated dysautonomia.
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