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Zhu C, Jia Y, Tang Y, Guo C, Xi J, Sun C, Li H, Wang W, Zhai Y, Zhu Y, Liu Y. Functionalized chitosan hydrogel promotes osseointegration at the interface of3D printed titanium alloy scaffolds. Int J Biol Macromol 2024; 266:131169. [PMID: 38554899 DOI: 10.1016/j.ijbiomac.2024.131169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/15/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Autogenous bone transplantation is a prevalent clinical method for addressing bone defects. However, the limited availability of donor bone and the morbidity associated with bone harvesting have propelled the search for suitable bone substitutes. Bio-inspired scaffolds, particularly those fabricated using electron beam melting (EBM) deposition technology, have emerged as a significant advancement in this field. These 3D-printed titanium alloy scaffolds are celebrated for their outstanding biocompatibility and favorable elastic modulus. Thermosensitive chitosan hydrogel, which transitions from liquid to solid at body temperature, serves as a popular carrier in bone tissue engineering. Icariin (ICA), known for its efficacy in promoting osteoblast differentiation from bone marrow mesenchymal stem cells (BMSCs), plays a crucial role in this context. We developed a system combining a 3D-printed titanium alloy with a thermosensitive chitosan hydrogel, capable of local bone regeneration and integration through ICA delivery. Our in vitro findings reveal that this system can gradually release ICA, demonstrating excellent biocompatibility while fostering BMSC proliferation and osteogenic differentiation. Immunohistochemistry and Micro-CT analyses further confirm the effectiveness of the system in accelerating in vivo bone regeneration and enhancing osseointegration. This composite system lays a significant theoretical foundation for advancing local bone regeneration and integration.
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Affiliation(s)
- Chenyi Zhu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Yudong Jia
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Yanfeng Tang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Chaowei Guo
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Jianing Xi
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Chaojun Sun
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Hongjun Li
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Wenlong Wang
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China
| | - Yuankun Zhai
- School of stomatology HENU, Kaifeng 475000, PR China
| | - Yingjie Zhu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China.
| | - Youwen Liu
- Medical Center of Hip, Luoyang Orthopedic-Traumatological Hospital, Luoyang 471000, PR China.
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Chen M, Lu L, Cheng D, Zhang J, Liu X, Zhang J, Zhang T. Icariin Promotes Osteogenic Differentiation in a Cell Model with NF1 Gene Knockout by Activating the cAMP/PKA/CREB Pathway. Molecules 2023; 28:5128. [PMID: 37446790 DOI: 10.3390/molecules28135128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Neurofibromatosis type 1 is a rare autosomal dominant genetic disorder, with up to 50% of patients clinically displaying skeletal defects. Currently, the pathogenesis of bone disorders in NF1 patients is unclear, and there are no effective preventive and treatment measures. In this study, we found that knockout of the NF1 gene reduced cAMP levels and osteogenic differentiation in an osteoblast model, and icariin activated the cAMP/PKA/CREB pathway to promote osteoblast differentiation of the NF1 gene knockout cell model by increasing intracellular cAMP levels. The PKA selective inhibitor H89 significantly impaired the stimulatory effect of icariin on osteogenesis in the NF1 cell model. In this study, an osteoblast model of NF1 was successfully constructed, and icariin was applied to the cell model for the first time. The results will help to elucidate the molecular mechanism of NF1 bone disease and provide new ideas for the clinical prevention and treatment of NF1 bone disease and drug development in the future.
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Affiliation(s)
- Meng Chen
- Shandong Center for Disease Control and Prevention, Jinan 250014, China
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
- Shandong Qidu Pharmaceutical Co., Ltd., Shandong Provincial Key Laboratory of Neuroprotective Drugs, Zibo 255400, China
| | - Lianhua Lu
- Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - Dong Cheng
- Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - Jing Zhang
- Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - Xinyong Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Jianli Zhang
- Shandong Qidu Pharmaceutical Co., Ltd., Shandong Provincial Key Laboratory of Neuroprotective Drugs, Zibo 255400, China
| | - Tianliang Zhang
- Shandong Center for Disease Control and Prevention, Jinan 250014, China
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3
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Long L, Wang X, Lei Y, Guo S, Wang C, Dai W, Lin B, Xie M, Xu H, Li S. Icariin: A Potential Alternative Against Osteoporosis. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221134881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Osteoporosis is a metabolic skeletal disorder characterized by increased fragility and fracture risk as s result of reduced bone mineral density and microstructural destruction and caused a heavy burden on families and society. Current medicines, on the other hand, have some limitations, with side effects and doubts regarding long-term efficacy being highlighted. Studies seeking for natural constituents as potential treatment options therefore come into focus. Icariin is a phytochemical derived from a traditional Chinese medicine, Herba epimedium, that has been used to treat orthopedic disorders in ancient China for thousands of years, including osteoporosis, osteoarthritis, and fracture. Icariin belongs to a category of prenylated flavonoids and has been shown to help reduce osteoporosis bone loss while having relatively low side effects. Icariin's anti-osteoporosis properties manifest in a variety of ways, like promoting osteogenesis, suppressing osteoclastogenesis and bone resorption, regulating migration, proliferation, and differentiation of mesenchymal stem cells, enhancing angiogenesis, anti-inflammation, and antioxidation. These procedures entail a slew of critical signaling pathways, such as PPARγ, ERα/AKT/β-catenin, and MAPK. Therefore, icariin can be an applicable alternative to improve osteoporosis although the underlying mechanisms have yet to be fully understood. In this study, we searched using the terms “icariin” and “osteoporosis,” and included 64 articles meeting the inclusion criteria and reviewed the research of icariin in anti-osteoporosis over the last 10 years, and discussed new prospects for future study. Therefore, this review may provide some references for further studies.
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Affiliation(s)
- Longhai Long
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Xiaoqiang Wang
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Yang Lei
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Sheng Guo
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Chenglong Wang
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Wenbin Dai
- Geriatric Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Birong Lin
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Mingzhong Xie
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Houping Xu
- Department of Preventive Treatment Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Sen Li
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
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4
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Peng Z, Xu R, You Q. Role of Traditional Chinese Medicine in Bone Regeneration and Osteoporosis. Front Bioeng Biotechnol 2022; 10:911326. [PMID: 35711635 PMCID: PMC9194098 DOI: 10.3389/fbioe.2022.911326] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 05/12/2022] [Indexed: 12/21/2022] Open
Abstract
According to World Health Organization (WHO), osteoporosis is a systematic bone disability marked by reduced bone mass and microarchitectural degeneration of osseous cells, which leads to increased bones feebleness and fractures vulnerability. It is a polygenetic, physiological bone deformity that frequently leads to osteoporotic fractures and raises the risk of fractures in minimal trauma. Additionally, the molecular changes that cause osteoporosis are linked to decreased fracture repair and delayed bone regeneration. Bones have the ability to regenerate as part of the healing mechanism after an accident or trauma, including musculoskeletal growth and ongoing remodeling throughout adulthood. The principal treatment approaches for bone loss illnesses, such as osteoporosis, are hormone replacement therapy (HRT) and bisphosphonates. In this review, we searched literature regarding the Traditional Chinese medicines (TCM) in osteoporosis and bone regeneration. The literature results are summarized in this review for osteoporosis and bone regeneration. Traditional Chinese medicines (TCM) have grown in popularity as a result of its success in curing ailments while causing minimal adverse effects. Natural Chinese medicine has already been utilized to cure various types of orthopedic illnesses, notably osteoporosis, bone fractures and rheumatism with great success. TCM is a discipline of conventional remedy that encompasses herbal medication, massage (tui na), acupuncture, food, and exercise (qigong) therapy. It is based on more than 2,500 years of Chinese healthcare profession. This article serves as a comprehensive review summarizing the osteoporosis, bone regeneration and the traditional Chinese medicines used since ancient times for the management of osteoporosis and bone regeneration.
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Shi S, Wang F, Huang Y, Chen B, Pei C, Huang D, Wang X, Wang Y, Kou S, Li W, Ma T, Wu Y, Wang Z. Epimedium for Osteoporosis Based on Western and Eastern Medicine: An Updated Systematic Review and Meta-Analysis. Front Pharmacol 2022; 13:782096. [PMID: 35431937 PMCID: PMC9008843 DOI: 10.3389/fphar.2022.782096] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/25/2022] [Indexed: 12/03/2022] Open
Abstract
Background: The efficacy of conventional pharmacotherapy on osteoporosis was limited and accompanied with serious side effects. Epimedium might have the potential to be developed as agents to treat osteoporosis. The present systematic review and meta-analysis integrating Western medicine and Eastern medicine (“WE” medicine) was to evaluate the efficacy of Epimedium on osteoporosis. Methods: Eleven electronic databases were searched to identify the randomized controlled trials (RCTs) comparing Epimedium as an adjunctive or alternative versus conventional pharmacotherapy during osteoporosis. Bone mineral density (BMD), effective rate, and Visual Analog Scale (VAS) were measured as primary outcomes. The secondary outcomes were pain relief time, bone metabolic markers, and adverse events. Research quality evaluation was conducted according to the modified Jadad scale. Review Manager 5.4 was utilized to perform analyses, and the data were pooled using a random-effect or fixed-effect model to calculate the weighted mean difference (WMD), standardized mean difference (SMD), risk ratio (RR), and 95% confidence intervals (CI). Results: Twelve RCTs recruiting 1,017 patients were eligible. Overall, it was possible to verify that, in the Epimedium plus conventional pharmacotherapy group, BMD was significantly improved (p = 0.03), effective rate was significantly improved (p = 0.0001), and VAS was significantly decreased (p = 0.01) over those in control group. When compared to conventional pharmacotherapy, Epimedium used alone improved BMD (p = 0.009) and effective rate (p < 0.0001). VAS was lower (p < 0.00001), and the level of alkaline phosphatase (ALP) was significantly decreased (p = 0.01) in patients taking Epimedium alone compared with those given conventional pharmacotherapy. Results of subgroup analyses yielded that the recommended duration of Epimedium as an adjuvant was >3 months (p = 0.03), the recommended duration of Epimedium as an alternative was ≤3 months (p = 0.002), and Epimedium decoction brought more benefits (SMD = 2.33 [1.92, 2.75]) compared with other dosage forms. No significant publication bias was identified based on statistical tests (t = 0.81, p = 0.440). Conclusions: Epimedium may improve BMD and effective rate and relieve pain as an adjuvant or alternative; Epimedium as an alternative might regulate bone metabolism, especially ALP, with satisfying clinical efficacy during osteoporosis. More rigorous RCTs are warranted to confirm these results.
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Affiliation(s)
- Shihua Shi
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fei Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bonan Chen
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, Hong Kong,SAR, China
| | - Caixia Pei
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Demei Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaomin Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yilan Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shuo Kou
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weihao Li
- Cardiology Division, West China Hospital, Sichuan University, Chengdu, China
| | - Tianhong Ma
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yongcan Wu
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, China
| | - Zhenxing Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Zhenxing Wang,
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Li H, Li M, Ran X, Cui J, Wei F, Yi G, Chen W, Luo X, Chen Z. The Role of Zinc in Bone Mesenchymal Stem Cell Differentiation. Cell Reprogram 2022; 24:80-94. [PMID: 35172118 DOI: 10.1089/cell.2021.0137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Zinc is an essential trace element for bone growth and bone homeostasis in the human body. Bone mesenchymal stem cells (BMSCs) are multipotent progenitors existing in the bone marrow stroma with the capability of differentiating along multiple lineage pathways. Zinc plays a paramount role in BMSCs, which can be spurred differentiating into osteoblasts, chondrocytes, or adipocytes, and modulates the formation and activity of osteoclasts. The expression of related genes also changed during the differentiation of various cell phenotypes. Based on the important role of zinc in BMSC differentiation, using zinc as a therapeutic approach for bone remodeling will be a promising method. This review explores the role of zinc ion in the differentiation of BMSCs into various cell phenotypes and outlines the existing research on their molecular mechanism.
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Affiliation(s)
- Huiyun Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Muzhe Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xun Ran
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Juncheng Cui
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Fu Wei
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Guoliang Yi
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Wei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xuling Luo
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Zhiwei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of University of South China, Hengyang, China
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7
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Chen L, Ma R, Luo P, Shi D, Shi X, Nian H, Chang SX, Yuan W, Li GW. Effects of Total Flavonoids of Epimedium on Bone Marrow Adipose Tissue in Ovariectomized Rats. Front Endocrinol (Lausanne) 2022; 13:900816. [PMID: 35733771 PMCID: PMC9207204 DOI: 10.3389/fendo.2022.900816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/04/2022] [Indexed: 12/30/2022] Open
Abstract
Bone marrow adipose tissue has brown fat characteristics. Several studies have demonstrated that total flavonoids of Epimedium (TFE) could prevent bone loss and reduce the white adiposity in bone marrow induced by ovariectomy (OVX) in rats. However, the effects of TFE on marrow brown fat in OVX rats remain unclear. In this word, we addressed this question expected to provide a new target for preventing and treating osteoporosis. Thirty-six 3-month-old female Sprague-Dawley rats were equally divided into Sham controls, OVX controls, and OVX treated with TFE. Chemical shift coding magnetic resonance was performed to detect marrow fat fraction at the left femur at baseline, 6 and 12 weeks post-OVX. Bone mineral density at the lumbar spine and femur was measured by dual-energy x-ray absorptiometry. Serum bone biomarkers by ELISA, trabecular bone microarchitecture at the proximal tibia by micro-CT, quantitative parameters of marrow adipocyte by hematoxylin, and eosin staining were evaluated. The marrow adipocyte gene and protein expressions profile were determined by real-time quantitative PCR and immunostaining in whole tibiae. We found that TFE treatment could decrease bone turnover rate and improved bone mineral density and trabecular microarchitecture in OVX rats. OVX resulted in marrow adipogenesis as evidenced by increased marrow fat fraction, larger marrow adipocyte size, increased adipocyte number and percentage of adipocyte area, marrow white adipocyte gene, and protein expression, including PPARγ2 and FABP4. These pathological changes induced by estrogen deficiency were restored by TFE treatment. TFE also increased brown adipocyte expressions of the transcription factor Ucp1 and Prdm16 in whole tibiae. There was no detectible protein expression of brown adipocyte markers in the proximal tibia. Taken together, TFE regulation of bone marrow adiposity in OVX rats is mediated, at least in part, via maintaining the reciprocity of white and brown adipose tissue.
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Affiliation(s)
- Lei Chen
- Department of Radiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rui Ma
- Department of Geriatrics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Peng Luo
- Department of Radiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Shi
- Department of Geriatrics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao Shi
- Department of Geriatrics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hua Nian
- Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shi-Xin Chang
- Department of Radiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Shi-Xin Chang, ; Wei Yuan, ; Guan-Wu Li,
| | - Wei Yuan
- Department of Orthopaedics, Shanghai Fourth People’s Hospital Affiliated to Tongji University School of Medicine, Shanghai, China
- *Correspondence: Shi-Xin Chang, ; Wei Yuan, ; Guan-Wu Li,
| | - Guan-Wu Li
- Department of Radiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Shi-Xin Chang, ; Wei Yuan, ; Guan-Wu Li,
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Icariin Promotes the Osteogenic Action of BMP2 by Activating the cAMP Signaling Pathway. Molecules 2019; 24:molecules24213875. [PMID: 31661767 PMCID: PMC6864436 DOI: 10.3390/molecules24213875] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/19/2019] [Accepted: 10/23/2019] [Indexed: 12/26/2022] Open
Abstract
Icariin (ICA) is the main active flavonoid glucoside from herbs of the genus Epimedium; in traditional Chinese medicine, these herbs have long been prescribed for the treatment of bone fractures and osteoporosis. Several studies have shown that treatment with ICA can increase osteogenic differentiation and reduce bone loss in vivo and in vitro. However, the definite signaling pathway of this osteogenic effect remains unclear. In this study, we selected bone morphogenetic protein 2 (BMP2)-induced osteoblastic differentiation of multipotent mesenchymal progenitor C2C12 cells as a model of osteoblast differentiation. We investigated the effects of ICA on C2C12 cells osteogenic differentiation and the underlying molecular mechanisms. We found that ICA could enhance BMP2-mediated osteoblastic differentiation of C2C12 cells in a dose-dependent manner. Treatment with ICA activated the cAMP/PKA/CREB signaling axis in a time-dependent manner. Blocking cAMP signaling using the PKA selective inhibitor H89 significantly inhibited the stimulatory effect of ICA on osteogenesis. Therefore, the osteoinductive potential and the low cost of ICA indicate that it is a promising alternative treatment or promoter for enhancing the therapeutic effects of BMP2.
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Icariin Prevents Diabetes-Induced Bone Loss in Rats by Reducing Blood Glucose and Suppressing Bone Turnover. Molecules 2019; 24:molecules24101871. [PMID: 31096652 PMCID: PMC6571757 DOI: 10.3390/molecules24101871] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 12/20/2022] Open
Abstract
Diabetic Osteoporosis (DOP) is a common metabolic bone disease, characterized by decreased bone mineral density (BMD) and destruction of bone microstructure. It has been reported that icariin is beneficial for estrogen deficiency-induced osteoporosis, and alcohol-induced osteoporosis; whether icariin has protective effects on diabetes-induced osteoporosis has not been reported. In this study, a rat model of diabetic osteoporosis was established by streptozotocin injection, the bone protective effects and potential mechanism of icariin on diabetes-induced bone loss was observed. Thirty 8-week-old female Sprague Dawley rats were divided into control group (vehicle treatment), T1DM (diabetic) group and T1DM-icariin (ICA) group (diabetic rats treated with icariin), 10 rats in each group. The bone histomorphometry parameters, bone mineral density (BMD), serum bone turnover markers, and bone marrow adipogenesis were analyzed after 8 weeks of icariin administration. The results showed consumption of icariin at a doses of 100 mg kg−1 decreased blood glucose, and increased the BMD of diabetic rats. Icariin effectively decreased serum bone turnover marker levels, including CTX-1, ALP, TRACP 5b, osteocalcin, and PINP. Meanwhile, the bone histomorphometry parameters, the number of osteoclasts per bone perimeter were turned to be normal level, and the icariin treatment suppressed bone marrow adipogenesis. The runt-related transcription factor 2 (RUNX 2), as well as the osteoprotegerin (OPG)/receptor activator of nuclear factor-κ B ligand (RANKL) ratio in serum and bone tissues were increased significantly after icariin treatment in diabetic rats. All of the above indicate that oral administration of icariin can prevent diabetic osteoporosis; the effect is mainly related to its ability to reduce blood glucose, inhibit bone turnover and bone marrow adipogenesis, as well as up-regulate bone RUNX 2, and OPG expression.
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Liang X, Hou Z, Xie Y, Yan F, Li S, Zhu X, Cai L. Icariin promotes osteogenic differentiation of bone marrow stromal cells and prevents bone loss in OVX mice via activating autophagy. J Cell Biochem 2019; 120:13121-13132. [PMID: 30887562 DOI: 10.1002/jcb.28585] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/27/2019] [Accepted: 01/30/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaoxiao Liang
- Department of Orthopaedic Surgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Zhiqiang Hou
- Department of Orthopaedic Surgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Yuanlong Xie
- Department of Orthopaedic Surgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Feifei Yan
- Department of Orthopaedic Surgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Sisi Li
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science Huazhong University of Science and Technology Wuhan China
| | - Xiaobin Zhu
- Department of Orthopaedic Surgery Zhongnan Hospital of Wuhan University Wuhan China
| | - Lin Cai
- Department of Orthopaedic Surgery Zhongnan Hospital of Wuhan University Wuhan China
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12
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Angeloni C, Barbalace MC, Hrelia S. Icariin and Its Metabolites as Potential Protective Phytochemicals Against Alzheimer's Disease. Front Pharmacol 2019; 10:271. [PMID: 30941046 PMCID: PMC6433697 DOI: 10.3389/fphar.2019.00271] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 03/04/2019] [Indexed: 01/14/2023] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder affecting more than 35 million people worldwide. As the prevalence of AD is dramatically rising, there is an earnest need for the identification of effective therapies. Available drug treatments only target the symptoms and do not halt the progression of this disorder; thus, the use of natural compounds has been proposed as an alternative intervention strategy. Icariin, a prenylated flavonoid, has several therapeutic effects, including osteoporosis prevention, sexual dysfunction amelioration, immune system modulation, and improvement of cardiovascular function. Substantial studies indicate that icariin may be beneficial to AD by reducing the production of extracellular amyloid plaques and intracellular neurofibrillary tangles and inhibiting phosphodiesterase-5 activity. Moreover, increasing evidence has indicated that icariin exerts a protective role in AD also by limiting inflammation, oxidative stress and reducing potential risk factors for AD such as atherosclerosis. This mini-review discusses the multiple potential mechanisms of action of icariin on the pathobiology of AD including explanation regarding its bioavailability, metabolism and pharmacokinetic.
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Affiliation(s)
| | | | - Silvana Hrelia
- Department for Life Quality Studies, University of Bologna, Bologna, Italy
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13
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He JP, Feng X, Wang JF, Shi WG, Li H, Danilchenko S, Kalinkevich A, Zhovner M. Icariin prevents bone loss by inhibiting bone resorption and stabilizing bone biological apatite in a hindlimb suspension rodent model. Acta Pharmacol Sin 2018; 39:1760-1767. [PMID: 29891857 DOI: 10.1038/s41401-018-0040-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 02/28/2018] [Indexed: 01/13/2023] Open
Abstract
Bone loss induced by microgravity is a substantial barrier to humans in long-term spaceflight. Recent studies have revealed that icariin (ICA) can attenuate osteoporosis in postmenopausal women and ovariectomized rats. However, whether ICA can protect against microgravity-induced bone loss remains unknown. In this study, the effects of ICA on a hindlimb suspension rodent model were investigated. Two-month-old female Wistar rats were hindlimb suspended and treated with ICA (25 mg·kg-1·d-1, i.g.) or a vehicle for 4 weeks (n = 6). The bone mass density of the hindlimbs was analyzed using dual-energy X-ray absorptiometry and micro-CT. mRNA expression of osteogenic genes in the tibia and the content of bone metabolism markers in serum were measured using qRT-PCR and ELISA, respectively. The bone mineral phase was analyzed using X-ray diffraction and atomic spectrometry. The results showed that ICA treatment significantly rescued the hindlimb suspension-induced reduction in bone mineral density, trabecular number and thickness, as well as the increases in trabecular separation and the structure model index. In addition, ICA treatment recovered the decreased bone-related gene expression, including alkaline phosphatase (ALP), bone glaprotein (BGP), and osteoprotegerin/receptor activator of the NF-κB ligand ratio (OPG/RANKL), in the tibia and the decreased bone resorption marker TRACP-5b levels in serum caused by simulated microgravity. Notably, ICA treatment restored the instability of bone biological apatite and the metabolic disorder of bone mineral elicited by simulated microgravity. These results demonstrate that ICA treatment plays osteoprotective roles in bone loss induced by simulated microgravity by inhibiting bone resorption and stabilizing bone biological apatite.
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14
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Liu H, Xiong Y, Wang H, Yang L, Wang C, Liu X, Wu Z, Li X, Ou L, Zhang R, Zhu X. Effects of water extract from epimedium on neuropeptide signaling in an ovariectomized osteoporosis rat model. JOURNAL OF ETHNOPHARMACOLOGY 2018; 221:126-136. [PMID: 29705515 DOI: 10.1016/j.jep.2018.04.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/24/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE For the past millennium, water extract from Epimedium (dried leaves of Epimedium brevicornu Maxim.) has been widely used for bone disease therapy in traditional Chinese medicine and has been reported to exhibit salutary effects on osteoporosis in clinical trials. The therapeutic effect of Epimedium is associated with the function of the brain in traditional Chinese medicine theory. STUDY AIM To determine the potential relationship between treating osteoporosis with Epimedium and neuropeptide regulation. MATERIALS AND METHODS Water extract from Epimedium was qualitatively and quantitatively analyzed with HPLC-TOF-MS. Ovariectomized rats were used as an osteoporosis model and were treated orally with water extract from Epimedium 16 weeks after surgery to mimic clinical therapy. After treatment, gene expression and protein levels of four neuropeptides, as well as their main receptors or receptor precursors including; neuropeptide Y (NPY) and its receptors NPY 1 (NPYR1) and 2; calcitonin gene-related peptide and its receptor precursor calcitonin receptor-like receptor (CRLR); vasoactive intestinal peptide (VIP) and its receptor VIP 1 (VIP1R) and 2; and substance P (SP) and its receptor neurokinin 1 receptor (NK1R) were detected in samples taken from bone, brain and spinal cord. RESULTS Treatment with water extract from Epimedium prevented bone mineral loss and reduced femoral bone strength decline associated with osteoporosis. Detection of neuropeptides showed that treatment also affected neuropeptide in the brain/spinal cord/bone axis; specifically, treatment increased brain NPY, bone NPY1R, bone CRLR, bone and spinal cord VIP and VIP2R, bone SP, and brain and spinal cord NK1R. CONCLUSION The effects of osteoporosis can largely be reduced by treatment with Epimedium most likely through a mechanism associated with several neuropeptides involved in regulation of the brain/spinal cord/bone axis. These novel results contribute to existing literature regarding the possible mechanisms of habitual use of Epimedium in the treatment of osteoporosis.
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Affiliation(s)
- Hengrui Liu
- Jinan University, Guangzhou 510632, PR China
| | | | - Haixia Wang
- Jinan University, Guangzhou 510632, PR China
| | - Li Yang
- Jinan University, Guangzhou 510632, PR China
| | | | | | - Zhidi Wu
- Jinan University, Guangzhou 510632, PR China
| | - Xiaoyun Li
- Jinan University, Guangzhou 510632, PR China
| | - Ling Ou
- Jinan University, Guangzhou 510632, PR China
| | | | - Xiaofeng Zhu
- First Affiliated Hospital of Jinan University, Guangzhou 510632, PR China.
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15
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Lin J, Zhu J, Wang Y, Zhang N, Gober HJ, Qiu X, Li D, Wang L. Chinese single herbs and active ingredients for postmenopausal osteoporosis: From preclinical evidence to action mechanism. Biosci Trends 2018; 11:496-506. [PMID: 29151553 DOI: 10.5582/bst.2017.01216] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Postmenopausal osteoporosis is a systemic metabolic skeletal disease generally ascribable to a dearth of estrogen. Whether traditional Chinese medicine is effective in management of postmenopausal osteoporosis remains unclear. This article reviews the experimental evidence of both in vitro and in vivo preclinical studies with the theme of the application of Chinese single herbs and active ingredients in postmenopausal osteoporosis. It includes three single herbs (Herba Epimedium, Rhizoma Drynariae, and Salvia miltiorrhiza) and eight active ingredients (saikosaponins, linarin, echinacoside, sweroside, psoralen, poncirin, vanillic acid, and osthole). The experimental studies indicated their potential use as treatment for postmenopausal osteoporosis and investigated the underlying mechanisms including osteoprotegerin/receptor activator of nuclear factor κB ligand (OPG/RANKL), extracellular-signal-regulated kinase/c-Jun N terminal kinase/mitogen-activated protein kinase (ERK/JNK/MAPK), estrogen receptor (ER), bone morphogenetic protein (BMP), transforming growth factor (TGF)-β, Wnt/β-catenin, and Notch signaling pathways. This review contributes to a better understanding of traditional Chinese medicine and provides useful information for the development of more effective anti-osteoporosis drugs.
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Affiliation(s)
- Jing Lin
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine of Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Jun Zhu
- Department of Obstetrics and Gynecology, Wenling People's Hospital, Wenzhou Medical University
| | - Yan Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine of Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Na Zhang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine of Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | | | - Xuemin Qiu
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine of Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Dajin Li
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine of Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Ling Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine of Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
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16
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Huang Z, Cheng C, Wang J, Liu X, Wei H, Han Y, Yang S, Wang X. Icariin regulates the osteoblast differentiation and cell proliferation of MC3T3-E1 cells through microRNA-153 by targeting Runt-related transcription factor 2. Exp Ther Med 2018; 15:5159-5166. [PMID: 29904399 PMCID: PMC5996701 DOI: 10.3892/etm.2018.6127] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 01/03/2018] [Indexed: 12/02/2022] Open
Abstract
Osteoporosis has become one of the most serious public health problems. Icariin, miR-153 and Runt-related transcription factor 2 (Runx2) have been demonstrated to regulate cell proliferation and differentiation in multiple cells. The aim of the present experiments was to investigate the potential mechanism underlying osteoblast differentiation and cell proliferation of MC3T3-E1 cells treated with icariin. Cell Counting kit-8, alkaline phosphatase (ALP) activity and alizarin red S assays, as well as reverse transcription-quantitative polymerase chain reaction and western blot analysis, were performed to examine whether icariin promoted osteoblast differentiation and cell proliferation in MC3T3-E1 cells. Subsequently, miR-153 target and pathway prediction, and functional analysis were assessed. The results demonstrated that icariin promoted proliferation, mineral content and ALP activity in MC3T3-E1 cells. In addition, miR-153 and Runx2 expression levels were increased following treatment with icariin. Luciferase assay revealed that miR-153 significantly upregulate the luciferase activity of wild-type (Wt) Runx2 3′-untranslated region. Furthermore, the group treated with a combination of miR-153 mimics and icariin exhibited a significantly higher expression of Runx2 in comparison with the miR-153 mimic-treated alone group. Finally, icariin reversed the potential effect of miR-153 inhibitor in MC3T3-E1 cells. In conclusion, icariin exerted a strong osteoblast differentiation effect in MC3T3-E1 cells through the miR-153/Runx2 pathway. The current study provided evidence suggesting that icariin should be considered as an effective candidate for the management of osteoporosis.
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Affiliation(s)
- Zengfa Huang
- Department of Radiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Cheng Cheng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jing Wang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Xianzhe Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Hui Wei
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yu Han
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Shuhua Yang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Xiang Wang
- Department of Radiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
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17
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Tang D, Ju C, Liu Y, Xu F, Wang Z, Wang D. Therapeutic effect of icariin combined with stem cells on postmenopausal osteoporosis in rats. J Bone Miner Metab 2018; 36:180-188. [PMID: 28681147 DOI: 10.1007/s00774-017-0831-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 02/28/2017] [Indexed: 12/26/2022]
Abstract
Osteoporosis is characterized by skeletal fragility and microarchitectural deterioration. The side effects of drugs to treat osteoporosis will negatively affect the health of patients. This study aimed to investigate the therapeutic effects of icariin combined with adipose-derived stem cells on osteoporosis in a postmenopausal osteoporosis model after ovariectomy in rats. After ovariectomy the rats were treated with icariin combined with adipose-derived stem cell transplantation. The levels of alkaline phosphatase, tartrate-resistant acid phosphatase, osteoprotegerin, and bone γ-carboxyglutamate protein in serum were determined by ELISA. The bone mineral density was measured by dual-energy X-ray absorptiometry. The mechanical properties were determined by a three-point bending test. The kidney functions were evaluated by an automatic analyzer and a diagnostic kit. Icariin combined with stem cells significantly reduced body weight gain caused by ovariectomy, significantly decreased alkaline phosphatase, tartrate-resistant acid phosphatase, and bone γ-carboxyglutamate protein content in serum, significantly increased osteoprotegerin content, significantly elevated bone mineral density of the lumbar spine, left femur, and right femur, and enhanced bone biomechanical properties of the femur, including maximum bending load, bending rigidity, and fracture energy, in osteoporotic rats. In addition, icariin combined with stem cells substantially decreased the damage to the liver and kidney in osteoporotic rats. Icariin combined with stem cells can not only ameliorate reduction of bone mass and disruption of the microarchitectural structure of bone tissue caused by osteoporosis in a rat model but can also have a beneficial effect on organ functions, such as those of the liver and kidney.
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Affiliation(s)
- Dao Tang
- Department of Neck-Shoulder and Lumbocrural Pain, Yantai Hospital of Traditional Chinese Medicine, No. 39 Xingfu Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Cuiling Ju
- Department of Pharmacy, The Wendeng Osteopath Hospital, Weihai, 264400, Shandong, China
| | - Yanjie Liu
- Department of Neck-Shoulder and Lumbocrural Pain, Yantai Hospital of Traditional Chinese Medicine, No. 39 Xingfu Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Fei Xu
- Department of Neck-Shoulder and Lumbocrural Pain, Yantai Hospital of Traditional Chinese Medicine, No. 39 Xingfu Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Zhengguang Wang
- Department of Neck-Shoulder and Lumbocrural Pain, Yantai Hospital of Traditional Chinese Medicine, No. 39 Xingfu Road, Zhifu District, Yantai, 264000, Shandong, China
| | - Dongbo Wang
- Department of Neck-Shoulder and Lumbocrural Pain, Yantai Hospital of Traditional Chinese Medicine, No. 39 Xingfu Road, Zhifu District, Yantai, 264000, Shandong, China.
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18
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Zhao H, Zhao N, Zheng P, Xu X, Liu M, Luo D, Xu H, Ju D. Prevention and Treatment of Osteoporosis Using Chinese Medicinal Plants: Special Emphasis on Mechanisms of Immune Modulation. J Immunol Res 2018; 2018:6345857. [PMID: 29675436 PMCID: PMC5838472 DOI: 10.1155/2018/6345857] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 11/05/2017] [Accepted: 12/06/2017] [Indexed: 01/18/2023] Open
Abstract
Numerous studies have examined the pathogenesis of osteoporosis. The causes of osteoporosis include endocrine factors, nutritional status, genetic factors, physical factors, and immune factors. Recent osteoimmunology studies demonstrated that the immune system and immune factors play important regulatory roles in the occurrence of osteoporosis, and people should pay more attention to the relationship between immunity and osteoporosis. Immune and bone cells are located in the bone marrow and share numerous regulatory molecules, signaling molecules, and transcription factors. Abnormal activation of the immune system alters the balance between osteoblasts and osteoclasts, which results in an imbalance of bone remodeling and osteoporosis. The incidence of osteoporosis is also increasing with the aging of China's population, and traditional Chinese medicine has played a vital role in the prevention and treatment of osteoporosis for centuries. Chinese medicinal plants possess unique advantages in the regulation of the immune system and the relationships between osteoporosis and the immune system. In this review, we provide a general overview of Chinese medicinal plants in the prevention and treatment of osteoporosis, focusing on immunological aspects.
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Affiliation(s)
- Hongyan Zhao
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Science, Beijing 100700, China
| | - Ning Zhao
- Institute of Clinical Basic Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Peng Zheng
- Jilin Provincial Hospital of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130021, China
| | - Xiaohong Xu
- Changchun University of Chinese Medicine, Changchun 130117, China
| | - Meijie Liu
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Science, Beijing 100700, China
| | - Dan Luo
- Traditional Chinese Medicine Hospital of Changping District, Beijing 102200, China
| | - Huihui Xu
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Dahong Ju
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Science, Beijing 100700, China
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19
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Longitudinal assessment of marrow fat content using three-point Dixon technique in osteoporotic rabbits. Menopause 2018; 23:1339-1344. [PMID: 27529463 DOI: 10.1097/gme.0000000000000721] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE In this longitudinal pilot study, we aimed to investigate the intra-, interobserver, and scan-rescan reproducibility of marrow fat fraction (FF) measurements using three-point Dixon imaging in osteoporotic rabbits: comparison with histopathology. METHODS Twenty female rabbits were randomly assigned to sham-operation and ovariectomy in combination with daily methylprednisolone hemisuccinate groups (n = 10 per group). Marrow FF by three-point Dixon technique and bone density by dual-energy x-ray absorptiometry were assessed at baseline, 6 and 12 weeks after operation. Intra-, inter-reader, and scan-rescan reliability of FF measurements were evaluated using intraclass correlation coefficient (ICC) and Bland-Altman 95% limit of agreement. Histomorphometry was performed to quantify marrow adipocyte parameters. RESULTS Intra- and inter-reader reproducibility of FF measurements was "substantial" (ICC = 0.984 and 0.978, respectively). Although the ICC for scan-rescan reliability was excellent (ICC = 0.962), increased measurement variability was observed using Bland-Altman plot. Relative to the sham-operated rabbits, the adipocytes mean diameter, density, and percent adipocytes area in the osteoporotic rabbits increased by 23.4%, 68.9%, and 117.0%, respectively. Marrow FF was positively correlated with the quantitative parameters of adipocytes, particularly with percent adipocyte area, but inversely associated with bone density. At the relatively early stage, the percentage of bone loss was similar to that of elevated fatty marrow in the osteoporotic rabbits; at the later stage, the change for the latter outweighed that of the former. CONCLUSIONS Results of three-point Dixon technique demonstrated a very reproducible manner within and between observers and acceptable scan-rescan performance in the assessment of marrow fat in rabbits.
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20
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Bone mass improved effect of icariin for postmenopausal osteoporosis in ovariectomy-induced rats: a meta-analysis and systematic review. Menopause 2017; 23:1152-7. [PMID: 27648597 DOI: 10.1097/gme.0000000000000673] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
OBJECTIVE Ovariectomy (OVX)-induced rats are the most frequently used animal model to research postmenopausal osteoporosis. Our objective was to summarize and critically assess the bone mass improved effect of icariin (ICA) for treatment of postmenopausal osteoporosis in an OVX-induced rat model. METHODS The PUBMED, EMBASE, and Chinese databases were searched from their inception date to February 2015. Two reviewers independently selected animal studies that evaluated the bone mass improved effect of ICA compared with control in OVX-induced rats. Extracted data were analyzed by RevMan statistical software, and the methodological quality of each study was assessed. RESULTS Seven studies with adequate randomization were included in the systematic review. Overall, ICA seemed to significantly improve bone mass as assessed using the bone mineral density (seven studies, n = 169; weighted mean difference, 0.02; 95% CI, 0.01-0.02, I = 77%, P < 0.00001) using a random-effects model. There is no significant difference between ICA and estrogen (E) (six studies, n = 128; weighted mean difference, 0.00; 95% CI, -0.00 to 0.01, I = 54%, P = 0.01). CONCLUSIONS Bone mass improved effect of ICA for postmenopausal osteoporosis was observed in OVX-induced rats. Assessment of the methodological quality of studies involving OVX-induced animal models is required, and good methodological quality should be valued in systematic reviews of animal studies.
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21
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Zhang Y, Shen L, Mao Z, Wang N, Wang X, Huang X, Hu Y, Shou D, Wen C. Icariin Enhances Bone Repair in Rabbits with Bone Infection during Post-infection Treatment and Prevents Inhibition of Osteoblasts by Vancomycin. Front Pharmacol 2017; 8:784. [PMID: 29163169 PMCID: PMC5671559 DOI: 10.3389/fphar.2017.00784] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 10/16/2017] [Indexed: 12/13/2022] Open
Abstract
Vancomycin is an effective antibiotic for treatment of bone infection caused by Staphylococcus aureus, however, a high local concentration of vancomycin might induce a delay in bone union. Icariin has been reported to suppress osteoclastogenes and promote osteogenesis. Our study aimed to investigate the effect of icariin on bone repair after anti-infection treatment in vivo and to explore the resisting effect of icariin on rat calvarial osteoblasts (ROBs) inhibited with high doses of vancomycin. Rabbits with bone infection of S. aureus were treated with implanted vancomycin-calcium sulfate (VCS) and icariin at 10.86 mg/kg/day for consecutive 8 weeks. Micro-CT, morphology, blood biochemistry were evaluated. In addition, ROBs were treated with vancomycin and icariin at different doses. Cell proliferation and differentiation capabilities, BMP2, Runx2, OPG, RANKL mRNA levels and protein expression were assessed. The results indicated that high dose of vancomycin significantly decreased bone mass and inhibited osteocalcin secretion; icariin increased these indicators compared with the single vancomycin treatment. Over 0.1 mg/mL of vancomycin inhibited the proliferation and differentiation of ROBs, while icariin resisted the inhibition of vancomycin by regulating cell cycle and promoting the Alkaline phosphatase (ALP) activity. Moreover, icariin promote bone formation by up-regulating BMP2/Runx2 and OPG/RANKL pathways. Icariin exhibited osteoplastic properties on osteoblasts that had been inhibited with high doses of vancomycin. Therefore, icariin is helpful for post-infection treatment of bone infection.
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Affiliation(s)
- Yang Zhang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Lifeng Shen
- Department of Orthopaedic Surgery, Zhejiang Provincial Tongde Hospital, Hangzhou, China
| | - Zhujun Mao
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Nani Wang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Xuping Wang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Xiaowen Huang
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Ying Hu
- Zhejiang Pharmaceutical College, Ningbo, China
| | - Dan Shou
- Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, China
| | - Chengping Wen
- College of Basic Medicine, Zhejiang Chinese Medical University, Hangzhou, China
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22
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Wu YX, Sun Y, Ye YP, Zhang P, Guo JC, Huang JM, Jing XZ, Xiang W, Yu SY, Guo FJ. Iguratimod prevents ovariectomy‑induced bone loss and suppresses osteoclastogenesis via inhibition of peroxisome proliferator‑activated receptor‑γ. Mol Med Rep 2017; 16:8200-8208. [PMID: 28983607 PMCID: PMC5779905 DOI: 10.3892/mmr.2017.7648] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 09/21/2017] [Indexed: 01/23/2023] Open
Abstract
Iguratimod is known for its anti-inflammatory activities and therapeutic effects in patients with rheumatoid arthritis. It has previously been demonstrated that iguratimod attenuates bone destruction and osteoclast formation in the Walker 256 rat mammary gland carcinoma cell-induced bone cancer pain model. Therefore, it was hypothesized that iguratimod may additionally exhibit therapeutic effects on benign osteoclast-associated diseases including postmenopausal osteoporosis. In the present study, ovariectomized mice were used to investigate the effects of iguratimod in vivo. Bone marrow mononuclear cells were cultured to detect the effects of iguratimod on receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis in vitro and the molecular mechanisms involved. It was demonstrated that iguratimod may prevent ovariectomy-induced bone loss by suppressing osteoclast activity in vivo. Consistently, iguratimod may inhibit RANKL-induced osteoclastogenesis and bone resorption in primary bone marrow mononuclear cells. At the molecular level, peroxisome proliferator-activated receptor-γ (PPAR-γ)/c-Fos pathway, which is essential in RANKL-induced osteoclast differentiation, was suppressed by iguratimod. Subsequently, iguratimod decreased the expression of nuclear factor of activated T cells c1 and downstream osteoclast marker genes. The results of the present study demonstrated that iguratimod may inhibit ovariectomy-induced bone loss and osteoclastogenesis by modulating RANKL signaling. Therefore, iguratimod may act as a novel therapeutic to prevent postmenopausal osteoporosis.
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Affiliation(s)
- Ying-Xing Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yue Sun
- Cancer Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ya-Ping Ye
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Peng Zhang
- Cancer Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jia-Chao Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jun-Ming Huang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xing-Zhi Jing
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Wei Xiang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Shi-Ying Yu
- Cancer Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Feng-Jing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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23
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Evaluation of Osteogenesis and Angiogenesis of Icariin in Local Controlled Release and Systemic Delivery for Calvarial Defect in Ovariectomized Rats. Sci Rep 2017; 7:5077. [PMID: 28698566 PMCID: PMC5505963 DOI: 10.1038/s41598-017-05392-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 05/30/2017] [Indexed: 12/11/2022] Open
Abstract
Typically, bone regenerative medicine is applied to repair bone defects in patients with osteoporosis. Meanwhile, there is an urgent need to develop safe and cheap drugs that induce bone formation. Icariin, which is reported to promote the osteogenesis of stem cells in vitro, is the main active component of Herba Epimedii. However, whether icariin could repair bone defects caused by osteoporosis remains unknown. In this study, an osteoporosis model in rats was established by an ovariectomy first, and then, the osteogenic and angiogenic differentiation of bone mesenchymal stem cells (BMSCs) treated with icariin was evaluated. Furthermore, calcium phosphate cement (CPC) scaffolds loaded with icariin were constructed and then implanted into nude mice to determine the optimal construction. To evaluate its osteogenic and angiogenic ability in vivo, this construction was applied to calvarial defect of the ovariectomized (OVX) rats accompanied with an icariin gavage. This demonstrated that icariin could up-regulate the expression of osteogenic and angiogenic genes in BMSCs. Meanwhile, osteoclast formation was inhibited. Moreover, CPC could act as a suitable icariin delivery system for repairing bone defects by enhancing osteogenesis and angiogenesis, while the systemic administration of icariin has an antiosteoporotic effect that promotes bone defect repair.
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Wei Q, He M, Chen M, Chen Z, Yang F, Wang H, Zhang J, He W. Icariin stimulates osteogenic differentiation of rat bone marrow stromal stem cells by increasing TAZ expression. Biomed Pharmacother 2017; 91:581-589. [DOI: 10.1016/j.biopha.2017.04.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 04/02/2017] [Accepted: 04/10/2017] [Indexed: 12/15/2022] Open
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Ma XN, Ma CX, Shi WG, Zhou J, Ma HP, Gao YH, Xian CJ, Chen KM. Primary cilium is required for the stimulating effect of icaritin on osteogenic differentiation and mineralization of osteoblasts in vitro. J Endocrinol Invest 2017; 40:357-366. [PMID: 27770387 DOI: 10.1007/s40618-016-0568-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/13/2016] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Icaritin, one effective metabolite of Herba Epimedii-derived flavonoid icariin, has a strong osteogenic activity. However, its action mechanism remains unclear. Since primary cilia have been shown to play a pivotal role in regulating the osteogenesis, we hypothesized primary cilia are indispensable in mediating icaritin osteogenic effect. MATERIALS AND METHODS Primary rat calvarial osteoblasts were transfected with siRNA1 targeting intraflagellar transport protein 88 (IFT88), a protein required for ciliogenesis, to prevent formation of primary cilium and were treated with 10-6 M icaritin. RESULTS Alkaline phosphatase (ALP) activity was significantly increased after 3 days in cells transfected with scrambled siRNA control and treated by icaritin (SC+I group) compared to cells transfected with scrambled siRNA control only (SC group). ALP activity after IFT88 siRNA1 transfection and icaritin treatment (siRNA1+I group) was significantly lower than that of SC+I group. Formation of ALP positively stained colonies after 6 days, osteocalcin secretion after 9 days and formation of calcified nodules after 12 days displayed a similar tendency among the three groups. mRNA expression of osteogenesis-related genes ALP, BMP-2, COL1α, RUNX-2 and OSX after 24 h was significantly increased in SC+I group, but was not different with SC group in siRNA1+I group. Protein levels of BMP-2, COL1α, RUNX-2 and OSX after 48 h showed the similar tendency with gene expression. CONCLUSION Primary cilia are important in mediating icaritin-stimulated osteogenic differentiation and may be a novel target for pharmacological therapies for bone loss.
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Affiliation(s)
- X-N Ma
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, 730050, People's Republic of China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - C-X Ma
- Department of Laboratory, Affiliated Hospital of Gansu University of Chinese Medicine, Lanzhou, 730000, People's Republic of China
| | - W-G Shi
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, 730050, People's Republic of China
| | - J Zhou
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, 730050, People's Republic of China
| | - H-P Ma
- Department of Pharmacy, Lanzhou General Hospital of CPLA, Lanzhou, 730050, People's Republic of China
| | - Y-H Gao
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, 730050, People's Republic of China
| | - C J Xian
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5001, Australia
| | - K-M Chen
- Institute of Orthopaedics, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, 730050, People's Republic of China.
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Icariin promotes osteogenic differentiation of rat bone marrow stromal cells by activating the ERα-Wnt/β-catenin signaling pathway. Biomed Pharmacother 2016; 84:931-939. [DOI: 10.1016/j.biopha.2016.09.107] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 09/29/2016] [Indexed: 12/27/2022] Open
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Xue L, Jiang Y, Han T, Zhang N, Qin L, Xin H, Zhang Q. Comparative proteomic and metabolomic analysis reveal the antiosteoporotic molecular mechanism of icariin from Epimedium brevicornu maxim. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:370-381. [PMID: 27422162 DOI: 10.1016/j.jep.2016.07.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 07/10/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Icariin, a principal flavonoid glycoside of Epimedium brevicornu Maxim, has been widely proved to possess antiosteoporotic activity with promoting bone formation and decreasing bone resorption. However, the involving mechanisms remain unclear. AIM OF THE STUDY To clear a global insight of signal pathways involved in anti-osteoporotic mechanism of icariin at proteins and metabolites level by integrating the proteomics and NMR metabonomics, in a systems biology approach. MATERIAL AND METHODS Mice were divided into sham, OVX model and icariin-treated OVX group, after 90 days treatment, difference gel electrophoresis combined with MALDI-TOF/TOF proteomics analysis on bone femur and serum metabolomics were carried out for monitor intracellular processes and elucidate anti-osteoporotic mechanism of icariin. Osteoblast and osteoclast were applied to evaluate the potential signal pathways. RESULTS Twenty three proteins in bone femur, and 8 metabolites in serum, were significantly altered and identified, involving in bone remodeling, energy metabolism, cytoskeleton, lipid metabolism, MAPK signaling, Ca2+ signaling et, al. Furthermore, animal experiment show icariin could enhance the BMD and BMC, decrease CTX-I level in ovariectomized mice. The mitochondrial membrane potential and the intracellular ATP levels were increased significantly, and the cytoskeleton were improved in icariin-treatment osteoblast and osteoclast. Icariin also increased mRNA expression of Runx2 and osterix of OB, decreased CTR and CAII mRNA expression and protein expression of P38 and JNK. However, icariin did not reveal any inhibition of the collagenolytic activity of cathepsin K, mRNA expression of MMP-9 and protein expression of ERK in osteoclast. CONCLUSION we consider icariin as multi-targeting compounds for treating with osteoporosis, involve initiating osteoblastogenesis, inhibiting adipogenesis, and preventing osteoclast differentiation.
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MESH Headings
- Adipogenesis/drug effects
- Animals
- Biomarkers/blood
- Bone Density/drug effects
- Bone Density Conservation Agents/isolation & purification
- Bone Density Conservation Agents/pharmacology
- Bone Remodeling/drug effects
- Cell Differentiation/drug effects
- Cells, Cultured
- Disease Models, Animal
- Electrophoresis, Gel, Two-Dimensional
- Epimedium/chemistry
- Female
- Femur/drug effects
- Femur/metabolism
- Flavonoids/isolation & purification
- Flavonoids/pharmacology
- Gene Expression Regulation/drug effects
- Metabolomics/methods
- Mice, Inbred ICR
- Osteoblasts/drug effects
- Osteoblasts/metabolism
- Osteoclasts/drug effects
- Osteoclasts/metabolism
- Osteoporosis/blood
- Osteoporosis/drug therapy
- Osteoporosis/genetics
- Phytotherapy
- Plant Extracts/isolation & purification
- Plant Extracts/pharmacology
- Plants, Medicinal
- Proteomics/methods
- Proton Magnetic Resonance Spectroscopy
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Signal Transduction/drug effects
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
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Affiliation(s)
- Liming Xue
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Institute of Chemical Toxicity, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China; Department of Oral Biological and Medical Sciences, The University of British Columbia, Vancouver, BC, Canada V6T1Z3
| | - Yiping Jiang
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Ting Han
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Naidan Zhang
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Luping Qin
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Hailiang Xin
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Qiaoyan Zhang
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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To assess differential features of marrow adiposity between postmenopausal women with osteoarthritis and osteoporosis using water/fat MRI. Menopause 2016; 24:105-111. [PMID: 27648658 DOI: 10.1097/gme.0000000000000732] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To assess the differential features of marrow adiposity between osteoarthritis (OA) and osteoporosis (OP) in postmenopausal women using water/fat MRI. METHODS This cross-sectional study included 97 postmenopausal women (OA [n = 25], OA + osteopenia [n = 27], OA + OP [n = 23], and OP groups [n = 22]). Water/fat MRI, dual-energy x-ray absorptiometry and biochemical analysis were performed to assess vertebral marrow fat fraction, bone mineral density, and bone biomarkers, respectively. Harris Hip Score was recorded to evaluate hip function. RESULTS There were significant differences in marrow fat content among the OA, OA + osteopenia, and OA + OP groups, between OP and OA participants with normal bone mass or osteopenia (all P < 0.05); no significant difference was observed between OA + OP and OP groups. Serum levels of leptin and β-Crosslaps in OA with normal bone mass and osteopenic OA groups were higher than in OP group. Marrow fat fraction was inversely correlated with Harris Hip Score (r = -0.371, P = 0.013), bone mineral density (r = -0.554, P = 0.009) and leptin levels (r = -0.610, P < 0.001). In multivariate regression analysis, marrow fat fraction was found to have a consistent and unchanged inverse association with leptin levels (Sβ = -0.311, P = 0.002) and bone mineral density (Sβ = -0.265, P = 0.006) after adjusting for age, years since menopause, and body mass index. CONCLUSIONS Postmenopausal OA with OP have a phenotype with higher marrow adiposity. OA and OP could coexist, for the presence of a specific subgroup of OA with increased marrow fat accumulation and high risk of developing OP.
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Panax notoginseng saponins mitigate ovariectomy-induced bone loss and inhibit marrow adiposity in rats. Menopause 2016; 22:1343-50. [PMID: 26035148 DOI: 10.1097/gme.0000000000000471] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Previous data have suggested that Panax notoginseng saponins (PNS) can prevent estrogen deficiency-induced bone loss by dual action: stimulation of new bone formation and inhibition of bone resorption. Marrow adipogenesis has been identified as a negative indicator of skeletal strength and integrity. This study assessed the effects of early PNS supplementation on bone microarchitecture preservation and marrow fat content in an ovariectomized rat model. METHODS Forty adult female Sprague-Dawley rats were randomly assigned to four equal groups for 12 weeks of treatment: (1) sham operation (SHAM) + vehicle; (2) ovariectomy (OVX) + vehicle; (3) OVX + 17β-estradiol (25 μg/kg); (4) OVX + PNS (300 mg/kg/d, PO). Marrow fat content of the femur was determined, using fat/water magnetic resonance imaging (MRI), at baseline and 6 and 12 weeks after operation. At the end of the experiment, bone turnover, trabecular microarchitecture, and marrow adipocytes were assessed by serum biomarkers, micro-computed tomography (micro-CT), and histopathology, respectively. The effects of PNS on adipocytic differentiation were reflected by expression levels of the adipogenic genes PPARγ2 and C/EBPα, as determined by reverse transcription-polymerase chain reaction. RESULTS Ovariectomized rats experienced remarkable increases in marrow fat content across time points, which were accompanied by elevated rate of bone turnover, global volumetric bone density, and trabecular microarchitecture deterioration. These OVX-induced pathological changes are reversible in that most of them could be mostly corrected upon 17β-estradiol treatment. PNS treatment significantly reduced marrow adipogenesis (adipocyte density, -27.2%; size, -22.7%; adipocyte volume-to-tissue volume ratio, -53.3%; all P < 0.01) and adipocyte marker gene expression, and prevented bone mass loss and microarchitecture deterioration. Moreover, PNS enhanced osteoblast activity but suppressed osteoclast turnover, as evidenced by decreased levels of serum C-terminal telopeptides of type I collagen and elevated levels of alkaline phosphatase. CONCLUSIONS PNS mitigates estrogen deficiency-induced deterioration of trabecular microarchitecture and suppresses marrow adipogenesis.
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Che CT, Wong MS, Lam CWK. Natural Products from Chinese Medicines with Potential Benefits to Bone Health. Molecules 2016; 21:239. [PMID: 26927052 PMCID: PMC6274145 DOI: 10.3390/molecules21030239] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/03/2016] [Accepted: 02/12/2016] [Indexed: 01/23/2023] Open
Abstract
Osteoporosis is a progressive, systemic bone disorder characterized by loss of bone mass and microstructure, leading to reduced bone strength and increased risk of fracture. It is often associated with reduced quality of life and other medical complications. The disease is common in the aging population, particularly among postmenopausal women and patients who receive long-term steroidal therapy. Given the rapid growth of the aging population, increasing life expectancy, the prevalence of bone loss, and financial burden to the healthcare system and individuals, demand for new therapeutic agents and nutritional supplements for the management and promotion of bone health is pressing. With the advent of global interest in complementary and alternative medicine and natural products, Chinese medicine serves as a viable source to offer benefits for the improvement and maintenance of bone health. This review summarizes the scientific information obtained from recent literatures on the chemical ingredients of Chinese medicinal plants that have been reported to possess osteoprotective and related properties in cell-based and/or animal models. Some of these natural products (or their derivatives) may become promising leads for development into dietary supplements or therapeutic drugs.
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Affiliation(s)
- Chun-Tao Che
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Man Sau Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Christopher Wai Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China.
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Jiang J, Zhao BJ, Song J, Jia XB. Pharmacology and Clinical Application of Plants in Epimedium L. CHINESE HERBAL MEDICINES 2016. [DOI: 10.1016/s1674-6384(16)60003-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Li B, Liu H, Jia S. Zinc enhances bone metabolism in ovariectomized rats and exerts anabolic osteoblastic/adipocytic marrow effects ex vivo. Biol Trace Elem Res 2015; 163:202-7. [PMID: 25431298 DOI: 10.1007/s12011-014-0185-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 11/17/2014] [Indexed: 01/09/2023]
Abstract
Investigations of bone mass and marrow adiposity are critical for defining the role of zinc (Zn) in bone metabolism. Rats used for study were grouped as follows: control (sham), ovariectomy (OVX), ovariectomy + estradiol (OVX-E), ovariectomy + Zn treatment (OVX-Zn). Bone mineral density (BMD) was quantified (microCT); serum osteocalcin, adiponectin, RANKL, and TRAP levels were assayed (ELISA); and biochemical determinations of serum alkaline phosphatase (ALP), calcium (Ca), and phosphorus (P) were done. Cells derived from bone mesenchymal stem cell (BMSC) isolates of respective test groups were compared, identifying primary osteoblasts by MTT assay and adipocytes by Oil Red O stain. Osteocalcin and adiponectin levels in culture supernatants were determined by ELISA. Zn supplementation resulted in a modest increase in BMD, but serum osteocalcin and ALP activity increased significantly (P < 0.01, both). Serum levels of RANKL and TRAP were lower in OVX-Zn (vs OVX) rats (P < 0.01), whereas serum concentrations of adiponectin, Ca, and P did not differ by group. Osteocalcin level was significantly upregulated ex vivo (P < 0.01) in the supernatant of cultured OVX-Zn (vs OVX) cells, accompanied by a slight upturn in osteoblastic differentiation. However, Oil Red O uptake and adiponectin level in supernatant were sharply diminished in cultured OVX-Zn (vs OVX) cells (P < 0.01). Overall, we concluded that Zn contributes to bone mass by marginally stimulating differentiation and proliferation of osteoblasts and by effectively inhibiting osteoclastic and adipocytic differentiation of BMSCs.
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Affiliation(s)
- Binbin Li
- Department of Oral Pathology, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China,
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Li C, Li Q, Mei Q, Lu T. Pharmacological effects and pharmacokinetic properties of icariin, the major bioactive component in Herba Epimedii. Life Sci 2015; 126:57-68. [PMID: 25634110 DOI: 10.1016/j.lfs.2015.01.006] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/22/2014] [Accepted: 01/10/2015] [Indexed: 12/22/2022]
Abstract
Herba Epimedii is an important medicinal plant which has been used in various traditional Chinese formulations for thousands of years as well as in modern proprietary traditional Chinese medicine products. It has extensive clinical indications, especially for the treatment of sexual dysfunction and osteoporosis. There have been more than 260 chemical moieties identified in the genus Epimedium most of which belong to flavonoids. Icariin is the most abundant constituent in Herba Epimedii. Icariin is pharmacologically bioactive and demonstrates extensive therapeutic capacities such as osteoprotective effect, neuroprotective effect, cardiovascular protective effect, anti-cancer effect, anti-inflammation effect, immunoprotective effect and reproductive function. Particularly, the significant osteogenic effect of icariin made it a promising drug candidate in bone tissue engineering. The current review paper aims to summarize the literatures reporting the pharmacological effects of icariin. The pharmacokinetic properties of bioactive ingredients in Herba Epimedii have also been discussed.
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Affiliation(s)
- Chenrui Li
- Key Laboratory for Space Biosciences & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Qiang Li
- Department of Radiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Qibing Mei
- Key Laboratory for Space Biosciences & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Tingli Lu
- Key Laboratory for Space Biosciences & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, China.
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Ma HP, Ma XN, Ge BF, Zhen P, Zhou J, Gao YH, Xian CJ, Chen KM. Icariin attenuates hypoxia-induced oxidative stress and apoptosis in osteoblasts and preserves their osteogenic differentiation potential in vitro. Cell Prolif 2014; 47:527-39. [PMID: 25355404 DOI: 10.1111/cpr.12147] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 08/14/2014] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES Icariin, a prenylated flavonol glycoside isolated from traditional Chinese medicinal herb of the genus Epimedium, has been demonstrated to be a potential alternative therapy for osteoporosis, and its action mechanism so far has been mainly attributed to its phytoestrogenic property. As blood supply to bone is considerably reduced with ageing and by the menopause, we hypothesized that icariin treatment would reduce bone loss by preventing ischaemia-induced hypoxic damages to bone. MATERIALS AND METHODS To investigate effects of icariin treatment on cultured rat calvarial osteoblasts exposed to hypoxic conditions (2% oxygen). RESULTS Compared to normoxic control, cell viability decreased with time to 50% by 48 h in the hypoxic group, and icariin attenuated the reduction, dose dependently, with 10(-6) and 10(-5) m concentrations showing significant protective effects. Icariin also inhibited increase of lactate dehydrogenase activity in culture media. Measurements on oxidative stress, cell cycling and cell survival indicated that icariin protected osteoblasts by reducing production of reactive oxygen species and malondialdehyde, increasing superoxide dismutase activity, arresting the cell cycle and inhibiting apoptosis. Icariin also preserved osteogenic differentiation potential of the hypoxic cells in a dose-dependent manner, compared to the hypoxia alone group, as revealed by increased levels of RUNX-2, OSX and BMP-2 gene expression, alkaline phosphatase activity, and formation of mineralized nodules. CONCLUSIONS Our results demonstrated that icariin attenuated oxidative stress and apoptosis and preserved viability and osteogenic potential of osteoblasts exposed to hypoxia in vitro, and suggested that its anti-osteoporotic effect may be attributed to its anti-hypoxic activity and phytoestrogenic properties.
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Affiliation(s)
- H-P Ma
- Department of Pharmacy, Lanzhou General Hospital, Lanzhou Command of CPLA, Lanzhou, 730050, China
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Wang Z, Ding L, Zhang S, Jiang T, Yang Y, Li R. Effects of icariin on the regulation of the OPG-RANKL-RANK system are mediated through the MAPK pathways in IL-1β-stimulated human SW1353 chondrosarcoma cells. Int J Mol Med 2014; 34:1720-6. [PMID: 25270538 DOI: 10.3892/ijmm.2014.1952] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 09/25/2014] [Indexed: 11/06/2022] Open
Abstract
Arthrodial cartilage degradation and subchondral bone remodeling comprise the most predominant pathological changes in osteoarthritis (OA). Moreover, accumulating evidence indicates that the abnormal expression of osteoprotegerin (OPG), receptor activator of nuclear factor kappa-B ligand (RANKL) and receptor activator of nuclear factor kappa-B (RANK) plays a vital role in the collapse of cartilage and subchondral bone. In the present study, the effects of icariin on the expression levels of these 3 factors in interleukin (IL)-1β-stimulated SW1353 chondrosarcoma cells were investigated. The SW1353 chondrosarcoma cells were cultured in the presence or absence of icariin and mitogen-activated protein kinase signaling pathway inhibitors, and were then stimulated with IL-1β. Cell viability was assessed by MTT assay. The mRNA and protein expression of OPG, RANKL and RANK was analyzed by quantitative reverse transcription polymerase chain reaction (RT-qPCR) and ELISA, respectively. In addition, the levels of phosphorylated p38 (p-p38) and phosphorylated extracellular signal-regulated kinase (p-ERK)1/2 were detected by western blot analysis. The results from western blot analysis revealed that treatment with icariin decreased the levels of p-p38 and increased the levels of p-ERK1/2 in the IL-1β-stimulated SW1353 cells. In addition, treatment with icariin decreased the levels of RANK and RANKL. Furthermore, the suppressive effects of icariin on OPG and OPG/RANKL were greater than those exhibited by the p38 signaling pathway inhibitor (SB203580). The findings of the the present study suggest that icariin has therapeutic potential for use in the treatment of OA.
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Affiliation(s)
- Zeming Wang
- Department of Combination of Chinese and Western Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Li Ding
- Department of Combination of Chinese and Western Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Sihan Zhang
- Department of Combination of Chinese and Western Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Tao Jiang
- Department of Pneumology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yongmian Yang
- Department of Gynaecology, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei 050011, P.R. China
| | - Rongheng Li
- Department of Combination of Chinese and Western Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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Li B, Liu H, Jia S. Puerarin Enhances Bone Mass by Promoting Osteoblastogenesis and Slightly Lowering Bone Marrow Adiposity in Ovariectomized Rats. Biol Pharm Bull 2014; 37:1919-25. [DOI: 10.1248/bpb.b14-00513] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Binbin Li
- Department of Oral Pathology, Peking University School and Hospital of Stomatology
| | - Hao Liu
- Central Laboratory, Peking University School and Hospital of Stomatology
| | - Shengnan Jia
- Department of Oral Pathology, Peking University School and Hospital of Stomatology
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