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Background <p>Controlling intestinal risk factors by consuming probiotics and modifying lifestyle with exercise modulates dietary damage. The aim of the present study was to investigate the effect of 6&#xa0;weeks of aerobic exercise training and probiotic consumption on the expression of inflammatory genes and histopathological changes in the liver of rats with a high-fat diet model.</p> Methods and Results <p>In this study, 40 male Wistar rats were divided into 5 groups: healthy control, high-fat diet (HFD), HFD with exercise (HFD + Exe), HFD with probiotic consumption (HFD + Prob), and HFD + Exe + Prob. Animals in the HFD group were first exposed to a special diet and after confirming liver tissue damage, they entered the main protocol. Animals in the exercise group performed aerobic exercise on a rodent treadmill for 6&#xa0;weeks, 5&#xa0;days a week. Animals in the probiotic group also received Lactobacillus bifidus by oral gavage after exercise. Finally, intestinal and liver tissue were removed and examined for histological and cellular examination. Based on the results, HFD caused tissue damage and fat infiltration in both intestinal and liver tissue. Also, inflammatory factors (IL-6 and IL-1β genes) in the liver tissue of this group increased significantly compared to the control group (p &lt; 0.05). In contrast, probiotic intervention and aerobic exercise caused a significant decrease in IL-6 and IL-1β genes compared to the HFD group (p &lt; 0.05).</p> Conclusion <p>The use of probiotic Lactobacillus bifidus along with exercise can neutralize inflammatory damage caused by a high-fat diet in liver tissue. However, further studies are needed in this field.</p>

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Probiotic intervention and exercise mitigate inflammation and histopathological alterations in the liver of wistar rats on a high-fat diet

  • 期刊论文

  • 发表日期：

    2025年2月9日

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  • Mahsa Pekand,
  • Mandana Gholami,
  • Hossein Abednatanzi,
  • Farshad Ghazalian

摘要

Background

Controlling intestinal risk factors by consuming probiotics and modifying lifestyle with exercise modulates dietary damage. The aim of the present study was to investigate the effect of 6 weeks of aerobic exercise training and probiotic consumption on the expression of inflammatory genes and histopathological changes in the liver of rats with a high-fat diet model.

Methods and Results

In this study, 40 male Wistar rats were divided into 5 groups: healthy control, high-fat diet (HFD), HFD with exercise (HFD + Exe), HFD with probiotic consumption (HFD + Prob), and HFD + Exe + Prob. Animals in the HFD group were first exposed to a special diet and after confirming liver tissue damage, they entered the main protocol. Animals in the exercise group performed aerobic exercise on a rodent treadmill for 6 weeks, 5 days a week. Animals in the probiotic group also received Lactobacillus bifidus by oral gavage after exercise. Finally, intestinal and liver tissue were removed and examined for histological and cellular examination. Based on the results, HFD caused tissue damage and fat infiltration in both intestinal and liver tissue. Also, inflammatory factors (IL-6 and IL-1β genes) in the liver tissue of this group increased significantly compared to the control group (p < 0.05). In contrast, probiotic intervention and aerobic exercise caused a significant decrease in IL-6 and IL-1β genes compared to the HFD group (p < 0.05).

Conclusion

The use of probiotic Lactobacillus bifidus along with exercise can neutralize inflammatory damage caused by a high-fat diet in liver tissue. However, further studies are needed in this field.