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| Correlation between the Expression of TGF-β1, Rhoa, SOX9 and Renal Interstitial Fibrosis in Rats with Chronic Kidney Disease |
| GUO Chun-hua, LI Hua-qing, LIN Zheng, QIU Zhao-wen, DENG Jin-xiu, ZHANG Qiu-xia, LIN Yong |
| Longyan First Affiliated Hospital of Fujian Medical University, Fujian Longyan 364000, China |
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Abstract Objective: To study the correlation between the expression of transforming growth factor-β1 (TGF-β1), RhoA, SOX9 and renal interstitial fibrosis in rats with chronic kidney disease. Methods: Forty specific pathogen-free (SPF) male SD rats were randomly divided into study group and control group, with 20 cases in each group. The study group was given adenine suspension by gavage, while the control group was given the same amount of saline by gavage. Blood, urine and renal tissue specimens were collected from all rats at 3rd and 6th weeks after modeling. The kidney weight, kidney weight/body weight, renal function indexes, the expression of TGF-β1, RhoA and SOX9 mRNA in renal tissues, Masson staining and renal interstitial fibrosis score were compared between the two groups. Pearson correlation was used to analyze the relationship between the renal interstitial fibrosis score and the expression of TGF-β1, RhoA and SOX9 mRNA in renal tissues of rats with chronic kidney disease. Results: The kidney weight and kidney weight/body weight of rats in the study group were higher than those in the control group at 3rd and 6th weeks after modeling (P<0.05). The quantitative levels of creatinine, urea nitrogen and 24-hour urinary protein in the study group were higher than those in the control group at 3rd and 6th weeks after modeling (P<0.05). The expression levels of TGF-β1, RhoA and SOX9 mRNA in renal tissues of rats in the study group were higher than those in the control group at 3rd and 6th weeks after modeling(P<0.05). The renal interstitial fibrosis score in the study group was higher than that in the control group at 3rd and 6th weeks after modeling(P<0.05). Pearson correlation analysis confirmed that the renal interstitial fibrosis score in rats with chronic kidney disease was positively correlated with the expression of TGF-β1, RhoA and SOX9 mRNA in renal tissues(P<0.05). Conclusion: The expression of TGF-β1, RhoA and SOX9 was abnormally high in rats with chronic kidney disease and was closely related to renal interstitial fibrosis, which may play a promoting role in the process of renal interstitial fibrosis.
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Received: 15 January 2023
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Corresponding Authors:
LIN Yong. E-mail: guochunh0101@163.com
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