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  • Title: [Application of Reyanning Mixture in evaluating combining disease with syndrome of human coronavirus pneumonia with pestilence attacking lung syndrome].
    Author: Bao L, Shi YJ, Geng ZH, Sun J, Zhao RH, DU CQ, Chu YJ, Cui XL.
    Journal: Zhongguo Zhong Yao Za Zhi; 2020 Apr; 45(7):1465-1472. PubMed ID: 32489022.
    Abstract:
    In the previous research, our laboratory established a mouse model combining disease with syndrome of human coronavi-rus pneumonia with pestilence attacking the lung syndrome, based on the national traditional Chinese medicine clinical classification of Novel Coronavirus Infected Pneumonia Diagnosis and Treatment Plan. In this study, a mouse model combining disease with syndrome of human coronavirus pneumonia with pestilence attacking the lung syndrome was used to evaluate the effectiveness of Reyanning Mixture to provide animal experimental support for clinical application. Mice were divided into normal group, 229 E infection group, cold-dampness group, cold-dampness+229 E infection group(the model group), Reyanning high and low dose groups. The cold-dampness group, cold-dampness+229 E infection group, two Reyanning groups were given cold and damp stimulation for 7 days. On the 5 th day, the 229 E infection group, cold-dampness+229 E infection group, and two Reyanning groups were infected with HCoV-229 E virus. Reyanning was administered for 3 days, starting from the day of infection. Blood was collected on the 4 th day and the lung tissue was dissected to calculate the lung index and inhibition rate; flow cytometry was used to detect the percentage of T and B lymphocytes in peripheral blood; RT-PCR was used to detect the nucleic acid virus load in lung tissue; ELISA was used to detect motilin and gastrin in serum, and inflammatory factors TNF-α, IFN-γ, IL-6, IL-10 in lung tissue proteins. Reyanning Mixture could reduce the lung index(P<0.01) of coronavirus pneumonia mice with pestilence attacking the lung; it could significantly increase the percentage of CD8~+ T lymphocytes and CD4~+ T lymphocytes in peripheral blood of model mice(P<0.05, P<0.01). The low dose of Reyanning could effectively increase the percentage of total B lymphocytes(P<0.05), reduce virus load in lung tissue of model mice(P<0.01), reduce the levels of TNF-α, IFN-γ, IL-6, IL-10 in the lung tissue of model mice(P<0.01), reduce the content of motilin in the serum of model mice(P<0.01). Reyanning Mixture convey a better effect in treating coronavirus pneumonia mice with pestilence attacking the lung. It manifested obvious effects in improving lung lesions, enhancing the gastrointestinal function of mice, improving the autoimmune function of mice, and reducing the expression of inflammatory factors in vivo, which could provide evidences for clinical research.
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