title: Effect of serum from postmenopausal women with osteoporosis exhibiting the Kidney-Yang deficiency pattern on bone formation in an hFOB 1.19 human osteoblastic cell line.
abstract: The aim of the present study was to investigate the underlying mechanism of the Kidney-Yang deficiency (KYD) pattern of osteoporosis in postmenopausal women of a certain age range by comparing the effect of serum from postmenopausal women with osteoporosis exhibiting the KYD pattern with that of serum from postmenopausal women without osteoporosis on bone formation in an hFOB 1.19 human osteoblastic cell line. A random selection of 30 female, postmenopausal volunteers aged 60-70 years, including 15 cases without osteoporosis and 15 cases with the KYD pattern of osteoporosis, were enrolled at the Physical Examination Center of the Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine. Venous blood was extracted and the serum was separated. The hFOB 1.19 cells were treated with 10% KYD pattern-serum or control serum from postmenopausal women of the same age range without osteoporosis. It was found that the KYD pattern-serum significantly decreased the cell viability, activity of alkaline phosphatase and number of calcified nodules, as well as downregulated the expression of osteocalcin and osteoprotegerin (OPG) and upregulated that of receptor activator of nuclear factor κB ligand (RANKL) in the hFOB 1.19 cells. In addition, the present results showed that the concentrations of estradiol (E2), OPG and insulin-like factor-1 (IGF-1) in the KYD pattern-serum were lower than those in the control serum. In combination, these findings suggest that the downregulation of E2, OPG and IGF-1 in the KYD pattern-serum inhibits the OPG/RANKL system, leading to a decrease in bone formation in the hFOB 1.19 cells. This indicates that the alterations in E2, OPG and IGF-1 may account for the susceptibility of certain postmenopausal women to the KYD pattern of osteoporosis.
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Yachan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Wenna
authors.initials: W
authors.lastname: Liang
authors.affiliation: Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Xihai
authors.initials: X
authors.lastname: Li
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Bizhen
authors.initials: B
authors.lastname: Gao
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Huijuan
authors.initials: H
authors.lastname: Gan
authors.affiliation: The Second Affiliated Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350004, P.R. China.
authors.forename: Lianhua
authors.initials: L
authors.lastname: Yin
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Jianying
authors.initials: J
authors.lastname: Shen
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Jie
authors.initials: J
authors.lastname: Kang
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Ding
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Xuejuan
authors.initials: X
authors.lastname: Lin
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Linghong
authors.initials: L
authors.lastname: Liao
authors.affiliation: Research Base of Traditional Chinese Medicine Syndromes, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China.
authors.forename: Candong
authors.initials: C
authors.lastname: Li
keywords: Kidney-Yang deficiency pattern; bone formation; osteoblast; postmenopausal osteoporosis