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  • Title: Efficacy of Liangxue Guyuan decoction on radiation-induced intestinal injury in rats via the toll-like receptor 4/myeloid differentiation primary response 88/ nuclear factor-kappa B pathway.
    Author: Wang Y, Dou Y, Feng J, Xu C, Wang Q.
    Journal: J Tradit Chin Med; 2021 Apr; 41(2):254-261. PubMed ID: 33825405.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of Liangxue Guyuan decoction ( LGD) on radiation-induced intestinal injury in rats, and the possible underlying mechanism of action. METHODS: A total of 255 male Sprague-Dawley rats were used. 15 rats were assigned to the control group and the remaining 240 rats were exposed to a 60Co source at a dose of 11 Gy. Irradiated rats were randomly divided into model, dexamethasone (DXM), low-dose LGD (LGDl), and high-dose LGD (LGDh) groups and treated for 11 d. The survival rate, weight of body, intestinal pathology and the expression of toll-like receptor 4 (TLR4), myeloid differentiation primary response 88 (MyD88), and nuclear factor-kappa B (NF-κB) were recorded. RESULTS: Radiation reduced the survival rate and weight of rats, destroyed the intestinal structure, induced an inflammatory reaction, and increased both protein and mRNA expression of TLR4, MyD88, and NF-κB in ileum. However, LGDh increased the survival rate, inhibited weight loss, alleviated inflammation and improve the expression of TLR4 pathway. CONCLUSION: LGD increased the survival rate and inhibit weight loss of irradiated rats, and reduced inflammation and intestinal injury. The underlying mechanism may involve regulation of the TLR4/MyD88/NF-κB pathway.
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