Preventive effects of Polygonum multiflorum on glucocorticoid-induced osteoporosis in rats

被引：22

作者：

Zhou, Manru ^{[1
,2
]}

Li, Jin ^{[1
]}

Wu, Jingkai ^{[1
]}

Yang, Yajun ^{[1
]}

Zeng, Xiaobing ^{[3
]}

Lv, Xiaohua ^{[1
]}

Cui, Liao ^{[1
,3
]}

Yao, Weimin ^{[4
]}

Liu, Yuyu ^{[1
]}

机构：

[1] Guangdong Med Univ, Dept Pharmacol, 2 Wenmingdong Rd, Zhanjiang 524023, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Xinhua Coll, Dept Pharm, Guangzhou 510520, Guangdong, Peoples R China

[3] Guangdong Med Univ, Affiliated Hosp, Guangdong Key Lab Res & Dev Nat Drugs, Zhanjiang 524023, Guangdong, Peoples R China

[4] Guangdong Med Univ, Affiliated Hosp, Dept Resp Med, 57 Renmindadaonan Rd, Zhanjiang 524023, Guangdong, Peoples R China

来源：

EXPERIMENTAL AND THERAPEUTIC MEDICINE | 2017年 / 14卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Polygonum multiflorum; prednisone; osteoporosis; rats; prevention; BIOMECHANICAL PROPERTIES; BONE LOSS; OSTEOBLAST; APOPTOSIS; DENSITY; CULTURE; PLANTS;

D O I：

10.3892/etm.2017.4802

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

In Traditional Chinese Medicine, Polygonum multiflorum (PM) is known for its anti-aging properties. A previous study by our group showed that extracts of PM were able to prevent and treat bone loss in vivo, and the active components emodin and2,3,5,4,-tetrahydroxystilbene-2-0-beta -glucoside (TSG) promoted the osteogenic differentiation of mesenchymal stem cells in vitro. The aim of the present study was to investigate the preventive effects of PM on glucocorticoid-induced osteoporosis (GIO) in rats. A crude extract of PM was prepared with 75% ethanol, purified and enriched using a D-101 macroresin column and elution with 30% ethanol, and the material obtained was assessed by high-performance liquid chromatography. Male or female Sprague Dawley rats (n=180) were randomly divided into nine groups: Control, prednisone, prednisone plus calcitriol (CAL), prednisone plus 30% ethanolic eluate of PM [high (H), medium (M) and low (L) dose] and prednisone plus crude extract of PM (H, M and L dose). Prednisone was orally administered to the osteoporosis model rats for 21 weeks, alongside which they received PM extracts. The weight of the viscera, anterior tibial muscle and other tissues was recorded at the end of the experiment. The femur and lumbar vertebra were collected for the measurement of three-dimensional microarchitecture by micro -computed tomography scanning, assessment of biomechanical properties and determination of bone mineral density (BMD). In the 30% ethanolic eluate of the PM extract, the content of TSG and combined anthraqui none was 9.20 and 0.15%, respectively, and that in the crude extract of PM was 2.23 and 0.03%, respectively. Over 6 weeks, the weight of the rats th6 in prednisone group decreased (P<0.05), while the weight of rats treated with M and H doses of 30% ethanolic eluate was increased compared with that in the prednisone group (P<0.05). Rats exposed to prednisone exhibited a deteriorated bone micro architecture, low BMD, decreased bone volume/total volume and poor biomechanical properties. Furthermore, the weight of the adrenal gland and the anterior tibial muscle was decreased. 30% ethanolic eluate of PM at M and L doses and crude extract of PM at the H dose counteracted the alterations of skeletal and other characteristics induced by prednisone in rats, as did CAL. In conclusion, extracts of PM exerted a protective effect on bone tissue in GIO rats.

引用

页码：2445 / 2460

页数：16

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