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Extended Fasting Durations Delayed Gastric Emptying and Colonic Motility in Normal Male Rats

Journal of Biosciences and Medicines 2022年第7期10卷 146-154页

作者： Olugbenga Adeola Odukanmi Onyekachi Emmanuel Anyagwa Omowunmi Sidikat Adewunmi keren ifunanya okechukwu Samuel Babafemi Olaleye Department of Physiology University of Ibadan Ibadan Nigeria

Background: Previous studies on fasting and gastrointestinal motility were reported with information lacking concerning prolonged continuous fasting and gastrointestinal motility. This study investigated the effect of prolonged fasting duration on gastrointestinal motility. Methods: Forty-five (45) male Wistar rats, with body weights between 180 - 200 g were used. They were randomly assigned into three (3) groups. Group1: control (rats fasted for 18 h—common duration of fasting for motility studies), groups 2 and 3 fasted for 48 and 72 h respectively. Five (5) rats per experiment and per group were considered. Blood glucose was determined by glucose oxidase method, gastric emptying was assessed by hydrated carbohydrate meal, intestinal motility by charcoal meal, and colonic motility was assessed using bead test. Data were reported in Mean ± SEM and analyzed with one-way ANOVA. Differences in results were considered significant at p ≤ 0.05. Results: There was no significant change in the blood glucose level (mmol/L) of rats in the 48 h group (2.94 ± 0.35) and 72 h group (3.20 ± 0.32) as compared with the control (3.62 ± 0.19). There was a significant decrease in the rate of gastric emptying (g) in the 72 h group (0.20 ± 0.08) compared with the control (0.64 ± 0.16). The intestinal transit (cm) in the 48 h group (67.54 ± 6.15) and 72 h group (72.10 ± 7.60) increased significantly when compared with the control (42.14 ± 3.14). There was a significant decrease in the colonic motility time (Sec.) in the 48 h group (2707 ± 864.1) and 72 h group (6363 ± 968.1) when compared with the control (263.8 ± 64.26). Conclusion: Extended fasting durations decrease the rate of gastric emptying and colonic motility. It suggests that extended fasting durations could be beneficial in intestinal spasms or where the gut is required to relax.

关键词： Fasting Gastrointestinal Motility Gastric Emptying Intestinal Transit Colonic Motility Rats

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