雷公藤甲素通过抑制破骨细胞生成预防骨丢失的研究

doi:10.13418/j.issn.1001-165x.2023.1.14

Abstract

Abstract: Objective To investigate the antiosteoporotic effect and mechanism of triptolide. Methods A rat model of senile osteoporosis was established. Forty 22-month-old male SD rats were randomly divided into a treatment group of triptolide (15 μg/kg per day intraperitoneally) and a control group of saline (15 μg/kg per day intraperitoneally) for 8 weeks treatment. Bone mineral density (BMD) and bone microstructure of the proximal tibial cancellous were analyzed by micro-CT. Western blot was used to detect the expression level of osteogenic-related proteins. The number of osteoclasts was measured by TRACP-5b staining, and the expression levels of bone resorption markers were also detected. Results Micro-CT results showed that BMD, bone volume/total volume ratio (Bv/Tv), bone trabecular thickness (Tb.Th), bone trabecular number (Tb.N), and bone trabecular spacing (Tb.Sp) in the rats treated with ryanodine were significantly higher than those in the control group (P<0.05). There was no significant difference in osteogenesis-related protein expression between the two groups, and TRACP staining result showed that triptolide reduced the number of osteoclasts in vivo (P<0.05), while blood bone resorption marker levels were also significantly lower (P<0.05). Conclusions Triptolide has a protective effect on age-related osteoporosis by inhibiting osteoclastogenesis. Which may be a feasible option for the treatment of senile osteoporosis.

Key words: Triptolide; , , Osteoporosis; , , Osteoblast; , , Osteoclast

CLC Number:

R285

Chen Junze, Yu Hui, Xiao Jin. Triptolide prevents bone loss by inhibiting osteoclastogenesis [J]. Chinese Journal of Clinical Anatomy, 2023, 41(1): 77-80.

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Triptolide prevents bone loss by inhibiting osteoclastogenesis

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