Effect of Liuwei Dihuangtang and ‘Reinforcing and Reducing’ Herb Pairs on OPG and RANKL in Femur and Kidney of Ovariectomized Rats Model with Osteoporosis
DAI Bing, LI Yu-xing, ZHANG Jia-ni, et al. Effect of Liuwei Dihuangtang and ‘Reinforcing and Reducing’ Herb Pairs on OPG and RANKL in Femur and Kidney of Ovariectomized Rats Model with Osteoporosis[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(2): 116-122.
DAI Bing, LI Yu-xing, ZHANG Jia-ni, et al. Effect of Liuwei Dihuangtang and ‘Reinforcing and Reducing’ Herb Pairs on OPG and RANKL in Femur and Kidney of Ovariectomized Rats Model with Osteoporosis[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(2): 116-122. DOI: 10.13422/j.cnki.syfjx.2018020116.
Objective:To investigate the effects of Liuwei Dihuangtang and its three ‘reinforcing and reducing’ herb pairs on the osteoprotegerin (OPG) and the nucleus factor-κB receptor activation factor ligands (RANKL) in kidney and femur of ovariectomized rat models with osteoporosis. Method:The 3-4 month SD rats were randomly divided into blank group (sham operation group
distilled water
10 mL·kg-1)
model group (distilled water
10 mL·kg-1)
Liuwei Dihuangtang group (6.75 g·kg-1)
Corni Fructus-Moutan Cortex group (1.89 g·kg-1)
Rehmanniae Radix Praeparata-Alismatis Rhizoma group (2.97 g·kg-1)
Dioscoreae Rhizoma-Poria group (1.89 g·kg-1)
and alendronate group (positive drug group
6.3 g·kg-1). Except for the blank group
all the other rats were ovariectomized to induce the model of postmenopausal osteoporosis. After 16 days
the rats from different groups received intragastric administration for continuous 90 days. The weight changes of the rats were observed every week
and the protein expression levels of OPG and RANKL were detected by using immunohistochemical method. Result:As compared with model group
the OPG protein expression in osteoblast and renal tubular epithelial cells was increased
and the protein expression of RANKL in osteoblast and renal tubular epithelial cells was decreased by Liuwei Dihuangtang. But the gray value of OPG was reduced (P<0.05) and the RANKL in osteoblast was increased (P<0.01) by Corni Fructus-Moutan Cortex pair
indicating that the OPG protein expression was increased and the protein expression of RANKL in osteoblast was decreased (the lower of gray value
the higher expression of OPG and RANKL). Conclusion:One of the mechanism of Liuwei Dihuangtang for postmenopausal osteoporosis maybe related to regulating OPG and RANKL protein expression in femur by Corni Fructus-Moutan Cortex herb pair.