Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study
The aim was to investigate the potential effect of adropin (ADR) on pancreatic–biliary juice (PBJ) secretion (volume, protein content, trypsin activity) in a rat model. The animals were divided into control and five experimental groups: adropin, CCK-8 (CCK-8 stimulation), capsaicin (capsaicin deacti...
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MDPI AG
2022-09-01
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| author | Małgorzata Kapica Iwona Puzio Beata Abramowicz Barbara Badzian Siemowit Muszyński Ewa Tomaszewska |
| author_facet | Małgorzata Kapica Iwona Puzio Beata Abramowicz Barbara Badzian Siemowit Muszyński Ewa Tomaszewska |
| author_sort | Małgorzata Kapica |
| collection | DOAJ |
| description | The aim was to investigate the potential effect of adropin (ADR) on pancreatic–biliary juice (PBJ) secretion (volume, protein content, trypsin activity) in a rat model. The animals were divided into control and five experimental groups: adropin, CCK-8 (CCK-8 stimulation), capsaicin (capsaicin deactivation of afferents), vagotomy (vagotomy procedure), and vagal stimulation (vagal nerve stimulation). The experiment consisted of four phases, during which vehicle (0.9% NaCl) and three ADR boluses (5, 10, and 20 µg/kg BW) were administered i.v. every 30 min. PBJ samples were collected from each rat at 15 min intervals after boluses. Exogenous ADR failed to affect the pancreatic responses after vagotomy and the capsaicin pretreatment and reduced the PBJ volume, protein outputs, and trypsin activity in the adropin, CCK-8, and vagal stimulation groups in a dose-dependent manner. In all these groups, volume of PBJ was reduced only by the highest dose of ADR (<i>p</i> < 0.001 for adropin group and <i>p</i> < 0.01 for CCK-8 and vagal stimulation groups), and the protein outputs were reduced by the administration of ADR 10 µg/kg BW (adropin and CCK-8 groups, <i>p</i> < 0.01 in both cases) and 20 µg/kg BW (<i>p</i> < 0.001 for adropin and CCK-8 groups, <i>p</i> < 0.01 for vagal stimulation group). The 10 µg/kg BW dose of ADR reduced the trypsin output in the CCK-8 group (<i>p</i> < 0.01), and the highest ADR dose reduced the trypsin output in the CCK-8 (<i>p</i> < 0.001) and vagal stimulation (<i>p</i> < 0.01) groups. In conclusion, adropin in the analyzed doses exhibits the negative feedback pathway. This mechanism seems to participate in the regulation of pancreatic juice secretion via an indirect vagal mechanism. |
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| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-09T22:09:55Z |
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| spelling | doaj.art-ee633f1f56254f4fb5713de0a3d2b2cb2023-11-23T19:35:30ZengMDPI AGAnimals2076-26152022-09-011219254710.3390/ani12192547Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary StudyMałgorzata Kapica0Iwona Puzio1Beata Abramowicz2Barbara Badzian3Siemowit Muszyński4Ewa Tomaszewska5Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, PolandDepartment of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, PolandDepartment and Clinic of Animal Internal Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-612 Lublin, PolandDepartment of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, PolandDepartment of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, 20-950 Lublin, PolandDepartment of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, PolandThe aim was to investigate the potential effect of adropin (ADR) on pancreatic–biliary juice (PBJ) secretion (volume, protein content, trypsin activity) in a rat model. The animals were divided into control and five experimental groups: adropin, CCK-8 (CCK-8 stimulation), capsaicin (capsaicin deactivation of afferents), vagotomy (vagotomy procedure), and vagal stimulation (vagal nerve stimulation). The experiment consisted of four phases, during which vehicle (0.9% NaCl) and three ADR boluses (5, 10, and 20 µg/kg BW) were administered i.v. every 30 min. PBJ samples were collected from each rat at 15 min intervals after boluses. Exogenous ADR failed to affect the pancreatic responses after vagotomy and the capsaicin pretreatment and reduced the PBJ volume, protein outputs, and trypsin activity in the adropin, CCK-8, and vagal stimulation groups in a dose-dependent manner. In all these groups, volume of PBJ was reduced only by the highest dose of ADR (<i>p</i> < 0.001 for adropin group and <i>p</i> < 0.01 for CCK-8 and vagal stimulation groups), and the protein outputs were reduced by the administration of ADR 10 µg/kg BW (adropin and CCK-8 groups, <i>p</i> < 0.01 in both cases) and 20 µg/kg BW (<i>p</i> < 0.001 for adropin and CCK-8 groups, <i>p</i> < 0.01 for vagal stimulation group). The 10 µg/kg BW dose of ADR reduced the trypsin output in the CCK-8 group (<i>p</i> < 0.01), and the highest ADR dose reduced the trypsin output in the CCK-8 (<i>p</i> < 0.001) and vagal stimulation (<i>p</i> < 0.01) groups. In conclusion, adropin in the analyzed doses exhibits the negative feedback pathway. This mechanism seems to participate in the regulation of pancreatic juice secretion via an indirect vagal mechanism.https://www.mdpi.com/2076-2615/12/19/2547adropintrypsinpancreatic secretionvagal stimulationrat |
| spellingShingle | Małgorzata Kapica Iwona Puzio Beata Abramowicz Barbara Badzian Siemowit Muszyński Ewa Tomaszewska Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study Animals adropin trypsin pancreatic secretion vagal stimulation rat |
| title | Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study |
| title_full | Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study |
| title_fullStr | Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study |
| title_full_unstemmed | Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study |
| title_short | Effect of Adropin on Pancreas Exocrine Function in a Rat Model: A Preliminary Study |
| title_sort | effect of adropin on pancreas exocrine function in a rat model a preliminary study |
| topic | adropin trypsin pancreatic secretion vagal stimulation rat |
| url | https://www.mdpi.com/2076-2615/12/19/2547 |
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