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Nutrients. 2017 Aug 2;9(8). pii: E828. doi: 10.3390/nu9080828.

Psoralea corylifolia L. Seed Extract Attenuates Diabetic Nephropathy by Inhibiting Renal Fibrosis and Apoptosis in Streptozotocin-Induced Diabetic Mice.

Seo E1,2, Kang H3,4, Oh YS5, Jun HS6,7,8.

Author information

1
College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Korea. eunhuiseo@gachon.ac.kr.
2
Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea. eunhuiseo@gachon.ac.kr.
3
College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Korea. hwansu83@naver.com.
4
Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea. hwansu83@naver.com.
5
Department of Food and Nutrition, Eulji University, Seongnam 13135, Korea. ysoh@eulji.ac.kr.
6
College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Korea. hsjun@gachon.ac.kr.
7
Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea. hsjun@gachon.ac.kr.
8
Gachon Medical Research Institute, Gil Hospital, Incheon 21565, Korea. hsjun@gachon.ac.kr.

Abstract

The Psoralea corylifolia L. seed (PCS) is a widely used herbal medicine, but its possible effect against diabetic nephropathy has not been studied. To investigate the anti-nephropathic effect of PCS extracts, we performed experiments using a diabetic mouse model and high glucose-treated mesangial cells. Streptozotocin (STZ)-induced diabetic mice were orally administered PCS extract for 8 weeks (500 mg/kg/day). Increased creatinine clearance, urine volume, urine microalbumin, and mesangial expansion were observed in STZ-induced diabetic mice; these were significantly reduced by PCS extract administration. PCS extract significantly reduced fibrosis in the kidney tissue of diabetic mice as evidenced by decreased mRNA expression of collagen type IV-α2, fibronectin, PAI-1, and TGF-β1. In addition, cleaved PARP, an apoptotic gene, was upregulated in the diabetic nephropathy mice, and this was ameliorated after PCS extract treatment. Treatment of high glucose-treated MES-13 cells with isopsoralen and psoralen, major components of PCS extract, also decreased the expression of fibrosis and apoptosis marker genes and increased cell viability. PCS extract exerts protective effects against STZ-induced diabetic nephropathy via anti-fibrotic and anti-apoptotic effects. PCS extract might be a potential pharmacological agent to protect against high glucose-induced renal damage under diabetic conditions.

KEYWORDS:

Psoralea corylifolia L. seed; diabetic nephropathy; renal apoptosis; renal fibrosis

PMID:
28767064
PMCID:
PMC5579621
DOI:
10.3390/nu9080828
[Indexed for MEDLINE]
Free PMC Article

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