l-Glutamine and Physical Exercise Prevent Intestinal Inflammation and Oxidative Stress Without Improving Gastric Dysmotility in Rats with Ulcerative Colitis

Autor: Juliana Soares Severo, Roberto C. P. Lima-Júnior, Geovane da Silva Cardoso, Raisa de Oliveira Santos, Gabriella Pacheco, Even Herlany Pereira Alves, Mariana Sousa Silva, Moisés Tolentino, Francisca Beatriz M. Sousa, Lívia Maria Soares Nobre, Armênio Aguiar dos Santos, Ana Karolina Martins Cavalcante, Mickael Laudrup de Sousa Cavalcante, Lara da Costa Lima, Jand Venes R. Medeiros
Rok vydání: 2020
Předmět:
Zdroj: Inflammation. 44:617-632
ISSN: 1573-2576
0360-3997
DOI: 10.1007/s10753-020-01361-3
Popis: The aim of this study was to evaluate the effects of glutamine supplementation or exercise on gastric emptying and intestinal inflammation in rats with ulcerative colitis (UC). Strength exercise consisted of jump training 4 × 10 repetitions/5 days a week/8 weeks with progressive overload. Endurance exercise consisted of swimming without overload for a period of 1 h a day/5 days a week/8 weeks. Another group (sedentary) of animals was supplemented with L-glutamine (1 g/kg of body weight) orally for 8 weeks before induction of UC. Colitis was induced by intra-colonic administration of 1 mL of 4% acetic acid. We assessed gastric emptying, macroscopic and microscopic scoring, oxidative stress markers, and IL-1β, IL-6, and (TNF-α) levels. The UC significantly increased (p < 0.05) the gastric emptying compared with the saline control group. We observed a significantly decrease (p < 0.05) in body weight gain in UC rats compared with the control groups. Both exercise interventions and L-glutamine supplementation significantly prevented (p < 0.05) weight loss compared with the UC group. Strength and endurance exercises significantly prevented (p < 0.05) the increase of microscopic scores and oxidative stress (p < 0.05). L-glutamine supplementation in UC rats prevented hemorrhagic damage and improved oxidative stress markers (p < 0.05). Strength and endurance exercises and glutamine decreased the concentrations of inflammatory cytokines IL-1β, IL-6, and TNF-α compared with the UC group (p < 0.05). Strength and endurance exercises and L-glutamine supplementation prevented intestinal inflammation and improved cytokines and oxidative stress levels without altering gastric dysmotility in rats with UC.
Databáze: OpenAIRE
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