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Telles PVN, Severo JS, de Oliveira LCS, Reis E Sousa JF, Cavalcante AKM, da Silva ACA, Aguiar Dos Santos A, Tolentino Bento da Silva M. Effect of anaerobic resistance training on gastric emptying of solids, nutritional parameters and food behavior in the rats treated with dexamethasone. Physiol Behav 2022; 245:113674. [PMID: 34921837 DOI: 10.1016/j.physbeh.2021.113674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/03/2021] [Accepted: 12/12/2021] [Indexed: 11/19/2022]
Abstract
Dexamethasone (Dexa) is a potent glucocorticoid that can trigger side effects, such as neuromuscular, cardiovascular, and gastric motility disorders. Exercise can ameliorate gastrointestinal disorders. However, it is not clear whether exercise can modulate the side effects of using Dexa on gastric motility. To investigate the role of anaerobic resistance training (ART) on gastric motility and feeding behavior of rats treated with dexamethasone, rats were divided into three groups: control (Ctrl), dexamethasone (Dexa), and anaerobic resistance training + dexamethasone (ARTDexa). Anaerobic resistance training (ART) consisted of climbing a vertical ladder 5 days/week (with intensity of 50% to 100% of the maximum overload/8 weeks). At the end of the ART or control period, the rats received Dexa (1 mg/kg i.p) for 10 consecutive days. In the end, we evaluated anthropometric parameters and feeding behavior, heart rate, gastric emptying, and lipid profile in all groups. We observed significant decrease (p < 0.05) in body weight and food intake in the Dexa and ARTDexa groups compared to the control. Dexa promoted significant tachycardia (p < 0.05) and a decrease (p < 0.05) in the r-r' interval. The ART significantly prevented (p < 0.05) cardiovascular effects. Dexa induced a decrease (p < 0.05) in gastric emptying compared to the control group. On the other hand, ART significantly prevented (p < 0.05) the decrease in gastric emptying compared to Dexa. The chronic use of Dexa caused tachycardia, decreased food intake, and decreased gastric emptying. The ART modulated cardiovascular parameters, improving tachycardia. In addition, this exercise prevented gastric dysmotility induced by dexamethasone.
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Affiliation(s)
- Pedro Victor Nogueira Telles
- Postgraduate Program in Pharmacology, Federal University of Piauí, Teresina-PI, Brazil; Laboratory of Exercise and Gastrointestinal Tract - Department of Physical Education, Federal University of Piauí, Teresina-PI, Brazil
| | - Juliana Soares Severo
- Postgraduate Program in Food and Nutrition, Federal University of Piauí, Teresina-PI, Brazil
| | | | - Jessica Fernanda Reis E Sousa
- Laboratory of Exercise and Gastrointestinal Tract - Department of Physical Education, Federal University of Piauí, Teresina-PI, Brazil
| | | | | | - Armênio Aguiar Dos Santos
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza-CE, Brazil
| | - Moisés Tolentino Bento da Silva
- Postgraduate Program in Pharmacology, Federal University of Piauí, Teresina-PI, Brazil; Postgraduate Program in Food and Nutrition, Federal University of Piauí, Teresina-PI, Brazil; Laboratory of Exercise and Gastrointestinal Tract - Department of Physical Education, Federal University of Piauí, Teresina-PI, Brazil.
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de Oliveira LCS, Telles PVN, E Sousa JFR, Cavalcante AKM, Wong DVT, Lima-Junior RC, Torres-Leal FL, Dos Santos AA, da Silva MTB. Influence of the physical exercise on decrease in the gastric emptying and alter appetite and food behavior in rats dexamethasone-treatment. Physiol Behav 2019; 209:112610. [PMID: 31299373 DOI: 10.1016/j.physbeh.2019.112610] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 06/05/2019] [Accepted: 07/08/2019] [Indexed: 02/06/2023]
Abstract
The chronic use of Dexamethasone (Dex) induced hyperglycemia and insulin resistance. On the other hand, physical exercise attenuates the symptoms induced by Dex in many physiological systems. However, the effect of the exercise on the changes in gastric motility induced by dexamethasone remains unknown. We hypothesized that low-intensity aerobic exercise modulates the metabolic effects induced by Dex-treatment by modifying the gastrointestinal function and feeding behavior in rats. Male rats were distributed into the following groups: Control (Ctrl), Dex (1.0 mg/kg, i.p.), Exercise (Ctrl + Exercise 5%) and (Dex1.0 + Exercise 5%). The exercise protocol was swimming for 5 consecutive days. We assessed the murinometric and nutritional indices, food intake, blood glucose by (ipGTT) and the gastric emptying rate of a liquid test meal were assessed in all rats. We observed a significant decrease (p < .05) in the gastric emptying in Dex1.0 group in relation to Ctrl group. The exercise prevented decrease in the gastric emptying (p < .05) in Dex1.0 + EX5% group when compared with Dex1.0 groups. The Dex1.0 group induced a significantly increase (p < .05) in glycaemia vs Ctrl group. The hyperglycemia was improving (p < .05) in the Dex1.0 + Ex5% compared with Dex1.0 groups. We observed a positive correlation (p < .05, and r = 0.7065) between gastric retention vs glycaemia in the Dex1.0 groups. The Dex1.0 reduced (p < .05) the body weight and altered body composition, promoting hypophagia. IL-6 increased (p < .05) at gastric fundus in Ex5% compared with Ctrl groups. In conclusion, the use of Dex1.0 decreases gastric emptying, promotes hyperglycemia and modifies feeding behavior. The low-intensity exercise prevents hyperglycemia, thus improving gastric dysmotility without improving the anthropometric parameters.
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Affiliation(s)
| | | | | | | | - Deysi Viviana Tenazoa Wong
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Roberto Cesar Lima-Junior
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Francisco Leonardo Torres-Leal
- Graduate Program in Food and Nutrition, Federal University of Piauí, Teresina, PI, Brazil; Graduate Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - Armenio Aguiar Dos Santos
- Graduate Program in Medical Sciences, Federal University of Ceará, Fortaleza, CE, Brazil; Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Moisés Tolentino Bento da Silva
- Graduate Program in Food and Nutrition, Federal University of Piauí, Teresina, PI, Brazil; Department of Physical Education, Federal University of Piauí, Teresina, PI, Brazil; Graduate Program in Pharmacology, Federal University of Piauí, Teresina, PI, Brazil.
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