Effects of Morinda on receptor activator of nuclear factor-kappaB expression in osteoclasts in osteoporosis

doi:10.3969/j.issn.2095-4344.2016.24.003

Abstract

Abstract:

BACKGROUND: Morinda has been reported to promote the proliferation, the secretion of alkaline phosphatase and osteocalcin, and mRNA expression of transforming growth factor of osteoblasts. However, little information is available addressing the effects of Morinda on receptor activator of nuclear factor-κB expression in osteoclasts in rats with osteoporosis.
OBJECTIVE: To study the effects of Morinda on receptor activator of nuclear factor-κB expression in osteoclasts of osteoporosis rats.
METHODS: Thirty Sprague-Dawley rats were equally and randomly divided into Morinda and 17β-estradiol groups. Rat models of osteoporosis were established by bilateral ovariectomy, and then 5 mL of Morinda decocta (1.0 mmol/L) and 17β-estradiol (1×10-6 mmol/L) were administered intragastrically to rats in Morinda and 17β-estradiol groups for 3 consecutive months, respectively. Primary osteoclasts were isolated from rats in both groups, and then cultured for 3, 6 and 9 days followed by TRAP staining and cell counting. Bone mineral density of the proximal and distal femur, urine and serum levels of Ca2+ and progesterone, and receptor activator of nuclear factor-κB expression in osteoclasts of rats in both groups were determined.
RESULTS AND CONCLUSION: Osteoclast fusion was reduced in Morinda group. In contrast, number of osteoclasts was increased and cells became more mature in the 17β-estradiol group. Bone mineral density of the proximal and distal femur bilaterally, urine and serum levels of Ca2+ and progesterone were significantly increased, while receptor activator of nuclear factor-κB expression was significantly decreased in osteoclasts in Morinda group compared with 17β-estradiol group (P < 0.05). These results indicate that Morinda reduces receptor activator of nuclear factor-κB expression in osteoclasts in osteoporosis rats, thereby inhibiting the development and progression of osteoporosis.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Osteoporosis, Drugs, Chinese Herbal, Estrogens, Tissue Engineering
Funding:

CLC Number:

R318

Wang Jun1, Miao De-sheng1, Lv Gang1, Mo Xin-yuan2. Effects of Morinda on receptor activator of nuclear factor-kappaB expression in osteoclasts in osteoporosis[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(24): 3516-3522.

Figures/Tables 3

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