Article ; Online: Metformin and Gegen Qinlian Decoction boost islet α-cell proliferation of the STZ induced diabetic rats.
BMC complementary medicine and therapies
2022 Volume 22, Issue 1, Page(s) 193
Abstract: Background: The traditional Chinese medicine Gegen Qinlian Decoction (GQD), as well as metformin, had been reported with anti-diabetic effects in clinical practice.: Objective: To verify whether these two medicines effectively ameliorate ... ...
Abstract | Background: The traditional Chinese medicine Gegen Qinlian Decoction (GQD), as well as metformin, had been reported with anti-diabetic effects in clinical practice. Objective: To verify whether these two medicines effectively ameliorate hyperglycemia caused by deficiency of islet β-cell mass which occurs in both type 1 and type 2 diabetes. Methods: SD rats were injected with a single dose of STZ (55 mg/kg) to induce β-cell destruction. The rats were then divided into control, diabetes, GQD and metformin group. GQD and metformin groups were administered with GQD extract or metformin for 6 weeks. The islet α-cell or β-cell mass changes were tested by immunohistochemical and immunofluorescent staining. The potential targets and mechanisms of GQD and metformin on cell proliferation were tested using in silico network pharmacology. Real-time PCR was performed to test the expression of islet cells related genes and targets related genes. Results: Both GQD and metformin did not significantly reduce the FBG level caused by β-cell mass reduction, but alleviated liver and pancreas histopathology. Both GQD and metformin did not change the insulin positive cell mass but increased α-cell proliferation of the diabetic rats. Gene expression analysis showed that GQD and metformin significantly increased the targets gene cyclin-dependent kinase 4 (Cdk4) and insulin receptor substrate (Irs1) level. Conclusion: This research indicates that GQD and metformin significantly increased the α-cell proliferation of β-cell deficiency induced diabetic rats by restoring Cdk4 and Irs1 gene expression. |
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MeSH term(s) | Animals ; Cell Proliferation ; Diabetes Mellitus, Experimental/drug therapy ; Diabetes Mellitus, Type 2 ; Drugs, Chinese Herbal ; Islets of Langerhans ; Metformin/pharmacology ; Rats ; Rats, Sprague-Dawley |
Chemical Substances | Drugs, Chinese Herbal ; gegenqinlian ; Metformin (9100L32L2N) |
Language | English |
Publishing date | 2022-07-20 |
Publishing country | England |
Document type | Journal Article |
ISSN | 2662-7671 |
ISSN (online) | 2662-7671 |
DOI | 10.1186/s12906-022-03674-2 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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