1
|
Zhang H, Yang F, Cao Z, Xu Y, Wang M. The influence of iron on bone metabolism disorders. Osteoporos Int 2024; 35:243-253. [PMID: 37857915 DOI: 10.1007/s00198-023-06937-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 09/29/2023] [Indexed: 10/21/2023]
Abstract
Iron is a necessary trace element in the human body, and it participates in many physiological processes. Disorders of iron metabolism can cause lesions in many tissues and organs, including bone. Recently, iron has gained attention as an independent factor influencing bone metabolism disorders, especially the involvement of iron overload in osteoporosis. The aim of this review was to summarize the findings from clinical and animal model research regarding the involvement of iron in bone metabolism disorders and to elucidate the mechanisms behind iron overload and osteoporosis. Lastly, we aimed to describe the association between bone loss and iron overload. We believe that a reduction in iron accumulation can be used as an alternative treatment to assist in the treatment of osteoporosis, to improve bone mass, and to improve the quality of life of patients.
Collapse
Affiliation(s)
- Hui Zhang
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Fan Yang
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Zihou Cao
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Youjia Xu
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, China.
| | - Mingyong Wang
- Murui Biological Technology Co., Ltd, Suzhou Industrial Park, Suzhou, China.
| |
Collapse
|
2
|
Tao Z, Tao M, Zhou M, Wu XJ. Niacin treatment prevents bone loss in iron overload osteoporotic rats via activation of SIRT1 signaling pathway. Chem Biol Interact 2024; 388:110827. [PMID: 38081572 DOI: 10.1016/j.cbi.2023.110827] [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: 03/26/2023] [Revised: 10/31/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Recently, more and more studies have revealed that iron overload can lead to osteoporosis by inducing oxidative stress. Niacin (NAN), also known as nicotinate or vitamin B3, has been confirmed to possess potent antioxidative effects. In addition, very little is currently known about the protective effects of NAN on iron overload in osteoporotic bone tissue. Therefore, we aimed to evaluate the protective effect of niacin on iron overload-induced bone injury and to investigate the effect and underlying mechanisms of the niacin and iron overload on intracellular antioxidant properties. When MC3T3-E1 and RAW264.7 cells were cultured in the presence of ammonium ferric citrate(FAC), NAN therapy could increase the matrix mineralization and promote expression of osteogenic markers in MC3T3-E1, inhibit osteoclastic differentiation of RAW264.7 cells, while increasing intracellular reactive oxygen species (ROS) levels and strengthening mitochondrial membrane potential (MMP). In the ovariectomized (OVX) rat model, NAN had an obvious protective effect against iron-overloaded injury. Meanwhile, superoxide dismutase 2 (SOD2), intracellular antioxidant enzymes and silent information regulator type 1 (SIRT1), were up-regulated in response to NAN exposures in MC3T3-E1. Furthermore, SIRT1 inhibitor EX527 attenuated the protective effects of NAN. Results revealed that NAN could stimulate osteogenic differentiation, inhibit osteoclastic differentiation and markedly increased antioxidant properties in cells through the induction of SIRT1. Studies suggest that niacin is a promising agent for preventing bone loss in iron overload conditions.
Collapse
Affiliation(s)
- Zhoushan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China; Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China.
| | - Ma Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| | - Maosheng Zhou
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| | - Xing-Jing Wu
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| |
Collapse
|
3
|
Liu LL, Liu ZR, Cao LJ, Wang J, Huang SM, Hu SG, Yang YZ, Li DS, Cao WW, Zeng QB, Huang S, Wu Q, Xiao JH, Liu WY, Xiao YS. Iron accumulation induced by hepcidin1 knockout accelerates the progression of aging osteoporosis. J Orthop Surg Res 2024; 19:59. [PMID: 38216929 PMCID: PMC10785403 DOI: 10.1186/s13018-024-04535-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/04/2024] [Indexed: 01/14/2024] Open
Abstract
OBJECTIVE Iron accumulation is associated with osteoporosis. This study aims to explore the effect of chronic iron accumulation induced by hepcidin1 deficiency on aging osteoporosis. METHODS Iron accumulation in hepcidin1 knockout aging mice was assessed by atomic absorption spectroscopy and Perl's staining. Bone microarchitecture was observed using Micro-CT. Hepcidin, ferritin, oxidative stress, and markers of bone turnover in serum were detected by enzyme-linked immunosorbent assay. Bone formation and resorption markers were measured by real-time quantitative PCR. Cell aging was induced by D-galactose treatment. CCK-8, flow cytometry, EdU assays, and Alizarin red staining were performed to reveal the role of hepcidin1 knockout in cell model. Iron Colorimetric Assay Kit and western blot were applied to detect iron and ferritin levels in cells, respectively. RESULTS In hepcidin1-knockout mice, the ferritin and iron contents in liver and tibia were significantly increased. Iron accumulation induced by hepcidin1 knockout caused a phenotype of low bone mass and deteriorated bone microarchitecture. Osteogenic marker was decreased and osteoclast marker was increased in mice, accompanied by increased oxidative stress level. The mRNA expression levels of osteoclast differentiation markers (RANKL, Mmp9, OPG, Trap, and CTSK) were up-regulated, while bone formation markers (OCN, ALP, Runx2, SP7, and Col-1) were down-regulated in model group, compared to wild type mice. In vitro, hepcidin1 knockdown inhibited proliferation and osteogenic differentiation, while promoted apoptosis, with increased levels of iron and ferritin. CONCLUSION Iron accumulation induced by hepcidin1 deficiency aggravates the progression of aging osteoporosis via inhibiting osteogenesis and promoting osteoclast genesis.
Collapse
Affiliation(s)
- Lu-Lin Liu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling Road, Ganzhou, 341000, Jiangxi, China
- Ganzhou Key Laboratory of Osteoporosis Research, No. 23, Qingnian Road, Ganzhou, 341000, Jiangxi, China
| | - Zhong-Rui Liu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling Road, Ganzhou, 341000, Jiangxi, China
- Ganzhou Key Laboratory of Osteoporosis Research, No. 23, Qingnian Road, Ganzhou, 341000, Jiangxi, China
| | - Lu-Jun Cao
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Jun Wang
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - San-Ming Huang
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Shui-Gen Hu
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Yi-Zhong Yang
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Dong-Sheng Li
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Wei-Wei Cao
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Qing-Bao Zeng
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Sheng Huang
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Qiong Wu
- Department of Orthopedics, The People's Hospital of Ningdu County, No. 109, Zhongshan South Road, Ningdu County, Ganzhou, 342800, Jiangxi, China
| | - Jian-Hua Xiao
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling Road, Ganzhou, 341000, Jiangxi, China
- Ganzhou Key Laboratory of Osteoporosis Research, No. 23, Qingnian Road, Ganzhou, 341000, Jiangxi, China
| | - Wu-Yang Liu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling Road, Ganzhou, 341000, Jiangxi, China
- Ganzhou Key Laboratory of Osteoporosis Research, No. 23, Qingnian Road, Ganzhou, 341000, Jiangxi, China
| | - Yao-Sheng Xiao
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling Road, Ganzhou, 341000, Jiangxi, China.
- Ganzhou Key Laboratory of Osteoporosis Research, No. 23, Qingnian Road, Ganzhou, 341000, Jiangxi, China.
| |
Collapse
|
4
|
Jiang J, Zhao B, Xiao J, Shi L, Shang W, Shu Y, Zhao Z, Shen J, Xu J, Cai H. Exploring the boost of steaming with wine on Ligustri Lucidi Fructus in treating postmenopausal osteoporosis based on superior "multi-component structure" and iron/bone metabolism coregulation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 123:155275. [PMID: 38142661 DOI: 10.1016/j.phymed.2023.155275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 10/07/2023] [Accepted: 12/10/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND Clinical studies indicated that postmenopausal osteoporosis (PMOP) often accompanied by iron overload risk factor, which exacerbated bone metabolism disorders and accelerated PMOP. Previous research found that multicomponent in Ligustri Lucidi Fructus (FLL) or wine-steamed FLL (WFLL) acted on the common targets of iron overload and PMOP simultaneously, which indicated that FLL and WFLL probably regulated iron/bone metabolism dually. Additionally, WFLL had more superior effect according to the theory of Chinese medicine for thousands of years. PURPOSE To reveal the "superior multi-component structure (SMCS)" and its molecular mechanisms in parallelly down-regulating iron overload and rescuing bone metabolism by WFLL. DESIGNS AND METHODS HPLC fingerprinting was established to compare the chemical profiles of FLL and WFLL; Then, the chemical compositions and quality markers of FLL and WFLL were analyzed by UPLC-Orbitrap-MS/MS coupled with OPLS-DA; the dynamic contents of quality markers and the multi-component structure at different wine steaming times (WST) were simultaneously determined by HPLC-DAD. Meanwhile, the dynamic efficacy of FLL at different WST were hunt by systematic zebrafish model. Subsequently, potential mechanism of WFLL in treating PMOP accompanied with iron overload was obtained from network pharmacology (NP) and molecular docking (MD). Finally, zebrafish and ovariectomy rat model were carried out to validate this potential mechanism. RESULTS HPLC fingerprints similarity of 15 batches in FLL and WFLL were among 0.9-1.0. 126 compositions were identified, including 58 iridoids, 25 terpenes, 30 phenylethanoids, 7 flavonoids and 6 others. 20 quality markers associated with WFLL was revealed, and the ratio of phenylethanols: Iridoids: Triterpenes (P/I/T) was converted from 1: 15: 4.5 to 1: 0.8: 0.9 during steaming (0 - 24 h) calculated by the quantification of 11 quality markers; the bone mineralization and motor performance of zebrafish larvae indicated that the optimum efficacy of WFLL at 12 h (p < 0.05) in which the SMCS of P/I/T was converted to 1: 4: 1.8. NP discovered that BMP-Smad pathway is one of the potential mechanisms of FLL in anti PMOP and then regulated bone formation and iron overload simultaneously. MD revealed that 17 active ingredients and 10 core targets genes could spontaneously bind with appropriate affinity. Rats model verified that FLL and WFLL significantly reversed PMOP, based on the improvement in bone formation indexes (ALP, OPG, OGN), iron metabolism indicators (hepcidin, ferritin), bone microstructure (BMD, BV/TV, Tb. Th, Tb. N); Moreover, WFLL significant enhanced reversal effect in anti-PMOP compared to FLL (p < 0.05). FLL and WFLL increased genes and proteins expression (Hep, BMP-6, p-Smad1/5, Smad4) related to BMP-Smad pathway compared with model group, and WFLL was more superior than FLL (p< 0.05). CONCLUSION The SMCS of FLL was optimized by wine-steam, WFLL represented a dual effect in downregulating iron overload and promoting bone formation, and the BMP-Smad pathway is one of the potential molecular mechanisms.
Collapse
Affiliation(s)
- Jun Jiang
- School of Pharmacy, Jiangsu University, 301# Xuefu Road, Zhenjiang, Jiangsu 212013, China; Department of TCM, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.
| | - Baixiu Zhao
- School of Pharmacy, Jiangsu University, 301# Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Jianpeng Xiao
- School of Pharmacy, Jiangsu University, 301# Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Liang Shi
- Nanjing first hospital, No.68 Changle Road, Qinhuai District, Nanjing, Jiangsu 210006, China
| | - Wei Shang
- Department of TCM, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.
| | - Ye Shu
- School of Pharmacy, Jiangsu University, 301# Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Zhiming Zhao
- Department of TCM, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Junyi Shen
- Department of TCM, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Jingjuan Xu
- Department of TCM, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Hui Cai
- Department of TCM, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.
| |
Collapse
|
5
|
Xu T, Cai J, Wang L, Xu L, Zhao H, Wang F, Meyron-Holtz EG, Missirlis F, Qiao T, Li K. Hormone replacement therapy for postmenopausal atherosclerosis is offset by late age iron deposition. eLife 2023; 12:e80494. [PMID: 37561022 PMCID: PMC10414966 DOI: 10.7554/elife.80494] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/30/2023] [Indexed: 08/11/2023] Open
Abstract
Postmenopausal atherosclerosis (AS) has been attributed to estrogen deficiency. However, the beneficial effect of hormone replacement therapy (HRT) is lost in late postmenopausal women with atherogenesis. We asked whether aging-related iron accumulation affects estrogen receptor α (ERα) expression, thus explaining HRT inefficacy. A negative correlation has been observed between aging-related systemic iron deposition and ERα expression in postmenopausal AS patients. In an ovariectomized Apoe-/- mouse model, estradiol treatment had contrasting effects on ERα expression in early versus late postmenopausal mice. ERα expression was inhibited by iron treatment in cell culture and iron-overloaded mice. Combined treatment with estradiol and iron further decreased ERα expression, and the latter effect was mediated by iron-regulated E3 ligase Mdm2. In line with these observations, cellular cholesterol efflux was reduced, and endothelial homeostasis was disrupted. Consequently, AS was aggravated. Accordingly, systemic iron chelation attenuated estradiol-triggered progressive AS in late postmenopausal mice. Thus, iron and estradiol together downregulate ERα through Mdm2-mediated proteolysis, providing a potential explanation for failures of HRT in late postmenopausal subjects with aging-related iron accumulation. This study suggests that immediate HRT after menopause, along with appropriate iron chelation, might provide benefits from AS.
Collapse
Affiliation(s)
- Tianze Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Jing Cai
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Lei Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Li Xu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing UniversityNanjingChina
| | - Hongting Zhao
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing UniversityNanjingChina
| | - Fudi Wang
- The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of MedicineHangzhouChina
| | - Esther G Meyron-Holtz
- Faculty of Biotechnology and Food Engineering, Technion Israel Institute of TechnologyHaifaIsrael
| | - Fanis Missirlis
- Department of Physiology, Biophysics and Neuroscience, CinvestavMexicoMexico
| | - Tong Qiao
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Kuanyu Li
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing UniversityNanjingChina
| |
Collapse
|
6
|
Li GF, Gao Y, Weinberg ED, Huang X, Xu YJ. Role of Iron Accumulation in Osteoporosis and the Underlying Mechanisms. Curr Med Sci 2023; 43:647-654. [PMID: 37326889 DOI: 10.1007/s11596-023-2764-z] [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: 09/10/2020] [Accepted: 03/09/2021] [Indexed: 06/17/2023]
Abstract
Osteoporosis is prevalent in postmenopausal women. The underlying reason is mainly estrogen deficiency, but recent studies have indicated that osteoporosis is also associated with iron accumulation after menopause. It has been confirmed that some methods of decreasing iron accumulation can improve the abnormal bone metabolism associated with postmenopausal osteoporosis. However, the mechanism of iron accumulation-induced osteoporosis is still unclear. Iron accumulation may inhibit the canonical Wnt/β-catenin pathway via oxidative stress, leading to osteoporosis by decreasing bone formation and increasing bone resorption via the osteoprotegerin (OPG)/receptor activator of nuclear factor kappa-B ligand (RANKL)/receptor activator of nuclear factor kappa-B (RANK) system. In addition to oxidative stress, iron accumulation also has been reported to inhibit either osteoblastogenesis or osteoblastic function as well as to stimulate either osteoclastogenesis or osteoclastic function directly. Furthermore, serum ferritin has been widely used for the prediction of bone status, and nontraumatic measurement of iron content by magnetic resonance imaging may be a promising early indicator of postmenopausal osteoporosis.
Collapse
Affiliation(s)
- Guang-Fei Li
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 2015004, China
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China
| | - Yan Gao
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 2015004, China
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China
| | - E D Weinberg
- Department of Biology & Program in Medical Sciences, Indiana University, Bloomington, IN, 47405, USA
| | - Xi Huang
- Department of Environmental Medicine, New York University, School of Medicine, New York, NY, 10016, USA
| | - You-Jia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 2015004, China.
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China.
| |
Collapse
|
7
|
Chang VC, Cotterchio M, Kotsopoulos J, Bondy SJ. Iron Status and Associated Factors among Canadian Women: Results from the Canadian Health Measures Survey. J Nutr 2023; 153:781-797. [PMID: 36788041 DOI: 10.1016/j.tjnut.2022.10.011] [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: 08/01/2022] [Revised: 09/25/2022] [Accepted: 10/05/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Iron deficiency and overload may negatively impact women's health. There has been limited assessment of iron status and its associated factors among Canadian women. OBJECTIVES This study investigated associations of various sociodemographic, lifestyle, medication, and dietary factors with body iron stores among pre- and postmenopausal women in Canada. METHODS Analyses were conducted using cross-sectional, nationally representative survey and biomarker data from women aged 20-79 y (n = 6362) in the Canadian Health Measures Survey (2009-2017). Body iron stores were assessed by measuring serum concentrations of ferritin (SF). Information on potential correlates was collected during an in-home interview. Multivariable linear regression analyses were performed to evaluate associations with SF concentration, and logistic regression was used to estimate associations with iron deficiency (SF <15 μg/L) or elevated iron stores (SF >150 μg/L). RESULTS Geometric mean SF concentrations were significantly higher in postmenopausal than in premenopausal women (73.2 versus 33.8 μg/L; P < 0.001). The prevalence of iron deficiency among pre- and postmenopausal women was 16.0% and 4.0%, respectively, whereas that of elevated iron stores was 2.7% and 21.0%, respectively. After simultaneous adjustment for multiple factors, including high-sensitivity CRP (inflammation marker), we found that age, East/Southeast Asian (versus White) race/ethnicity, alcohol, and red meat consumption were positively associated with SF concentration among pre- and postmenopausal women. In addition, aspirin use and dairy consumption were inversely associated with SF concentration among postmenopausal women only. Similar patterns were observed for associations with elevated iron stores among postmenopausal women, whereas higher grain consumption was associated with an increased prevalence of iron deficiency among premenopausal women. CONCLUSIONS Sociodemographic, lifestyle, medication, and dietary factors are correlated with iron status determined by SF concentration among Canadian women. The findings may have implications for intervention strategies aimed at optimizing body iron stores in pre- and postmenopausal women.
Collapse
Affiliation(s)
- Vicky C Chang
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Prevention and Cancer Control, Ontario Health (Cancer Care Ontario), Toronto, ON, Canada.
| | - Michelle Cotterchio
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Prevention and Cancer Control, Ontario Health (Cancer Care Ontario), Toronto, ON, Canada
| | - Joanne Kotsopoulos
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada; Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada
| | - Susan J Bondy
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
8
|
Zhang H, Wang A, Li G, Zhai Q, Huang Z, Wang X, Cao Z, Liu L, Liu G, Chen B, Zhu K, Xu Y, Xu Y. Osteoporotic bone loss from excess iron accumulation is driven by NOX4-triggered ferroptosis in osteoblasts. Free Radic Biol Med 2023; 198:123-136. [PMID: 36738798 DOI: 10.1016/j.freeradbiomed.2023.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 01/08/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023]
Abstract
Excess iron accumulation is a risk factor for osteopenia and osteoporosis, and ferroptosis is becoming well understood as iron-dependent form of cell death resulting from lipid peroxide accumulation. However, any pathological impacts of ferroptosis on osteoporosis remain unknown. Here, we show that ferroptosis is involved in excess-iron-induced bone loss and demonstrate that osteoporotic mice and humans have elevated skeletal accumulation of the NADPH oxidase 4 (NOX4) enzyme. Mechanistically, we found that the NOX4 locus contains iron-response element-like (IRE-like) sequences that are normally bound (and repressed) by the iron regulatory protein 1 (IRP1) protein. Binding with iron induces dissociation of IRP1 from the IRE-like sequences and thereby activates NOX4 transcription. Elevated NOX4 increases lipid peroxide accumulation and causes obvious dysregulation of mitochondrial morphology and function in osteoblasts. Excitingly, the osteoporotic bone loss which we initially observed in an excessive-iron accumulating mouse line (Hepc1-/-) was blocked upon treatment with the ferroptosis-inhibitor ferrostatin-1 (Ferr-1) and with the iron chelator deferoxamine (DFO), suggesting a potential therapeutic strategy for preventing osteoporotic bone loss based on disruption of ferroptosis.
Collapse
Affiliation(s)
- Hui Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Aifei Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou, 215004, China
| | - Guangfei Li
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Qiaocheng Zhai
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Su Genomic Resource Center, Medical School of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhengyun Huang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Su Genomic Resource Center, Medical School of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xiao Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Zihou Cao
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou, 215004, China
| | - Lulin Liu
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou, 215004, China
| | - Gongwen Liu
- Department of Orthopaedics, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215004, China
| | - Bin Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Keyu Zhu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou, 215004, China
| | - Ying Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Su Genomic Resource Center, Medical School of Soochow University, Suzhou, Jiangsu, 215123, China.
| | - Youjia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou, 215004, China.
| |
Collapse
|
9
|
Ma J, Wang A, Zhang H, Liu B, Geng Y, Xu Y, Zuo G, Jia P. Iron overload induced osteocytes apoptosis and led to bone loss in Hepcidin -/- mice through increasing sclerostin and RANKL/OPG. Bone 2022; 164:116511. [PMID: 35933095 DOI: 10.1016/j.bone.2022.116511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/22/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Numerous studies have demonstrated that iron overload is a risk factor of osteoporosis. However, there has been no systematic and in-depth studies on the effect of iron overload on osteocytes and its role in iron overload-induced bone loss. Therefore, to address this problem, we carried out in vitro and in vivo studies using MLO-Y4 osteocyte-like cells and Hepcidin-/- mice as iron overload models. METHODS (1) MLO-Y4 cells were treated with ferric ammonium citrate (FAC). Intracellular reactive oxygen species (ROS) levels and apoptosis of MLO-Y4 cells were determined by flow cytometry. Western blotting was performed to evaluate the effect of FAC on the expression of sclerostin and RANKL/OPG. (2) The conditioned medium of MLO-Y4 cells after treatment with FAC was collected and used to treat pre-osteoblasts and monocytes. Alkaline phosphatase (ALP) staining and alizarin red (AR) staining were used to evaluate osteogenic differentiation capacity, and tartrate-resistant acid phosphatase (TRAP) staining was performed to demonstrate osteoclast differentiation capacity. (3) In vivo studies included a wild type mouse, Hepcidin-/- mice, Hepcidin-/- mice + deferoxamine (DFO), and Hepcidin-/- mice + N-actyl-l-cysteine (NAC) group. Micro-CT was performed to evaluate the bone mineral density (BMD), bone volume, and bone micro-architecture of the mice, and three bending tests were used to assess bone strength. Histological analysis was used to detect alterations in bone turnover. TUNEL staining and scanning electron microscopy (SEM) were performed to evaluate the apoptosis and morphology of osteocytes. Immunohistochemical staining and Western blotting were used to determine alterations in sclerostin and RANKL/OPG expression levels in mice. RESULTS (1) FAC increased intracellular ROS and apoptosis in MLO-Y4 cells, while FAC enhanced the expression of sclerostin and RANKL/OPG in MLO-Y4 cells. (2) Conditioned medium of MLO-Y4 cells inhibited the osteogenic capacity of osteoblasts while stimulating osteoclast differentiation. (3) By increasing oxidative stress, iron overload promotes the apoptosis of osteocytes and undermines the morphology of osteocytes in Hepcidin-/- mice, further increasing the expression levels of sclerostin and RANKL/OPG in osteocytes, which is considered to be the causative factor for reduced bone formation and enhanced bone resorption. DFO administration reduced iron levels, and NAC treatment decreased oxidative stress in Hepcidin-/- mice. Therefore, DFO or NAC treatment rescued the decrease in BMD, bone volume, and bone strength and attenuated the deterioration of bone architecture in Hepcidin-/- mice by attenuating the effect of iron overload on osteocytes. CONCLUSION Osteocyte apoptosis due to increased ROS and resultant sclerostin and RANKL/OPG expression alteration was the main reason for bone loss in Hepcidin-/- mice. Osteocytes are the main targets for the prevention and treatment of iron overload-induced osteoporosis.
Collapse
Affiliation(s)
- Jiawei Ma
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China
| | - Aifei Wang
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China
| | - Hui Zhang
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China
| | - Baoshan Liu
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China
| | - Yu Geng
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China
| | - Youjia Xu
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China
| | - Guilai Zuo
- Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, Orthopedic Department, China.
| | - Peng Jia
- Second Affiliated Hospital of Soochow University, Orthopedic Department, China; Osteoporosis Research Institute of Soochow University, China.
| |
Collapse
|
10
|
Qu Y, Li N, Xu M, Zhang D, Xie J, Wang J. Estrogen Up-Regulates Iron Transporters and Iron Storage Protein Through Hypoxia Inducible Factor 1 Alpha Activation Mediated by Estrogen Receptor β and G Protein Estrogen Receptor in BV2 Microglia Cells. Neurochem Res 2022; 47:3659-3669. [PMID: 35829942 DOI: 10.1007/s11064-022-03658-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 11/26/2022]
Abstract
Estrogen is a steroid hormone produced mainly by the ovaries. It has been found that estrogen could regulate iron metabolism in neurons and astrocytes in different ways. The role of estrogen on iron metabolism in microglia is currently unknown. In this study, we investigated the effect and mechanism of 17β-estrogen (E2) on iron transport proteins. We found that following E2 treatment for 24h in BV2 microglial cell lines, the iron importer divalent metal transporter 1 (DMT1) and iron exporter ferroportin 1 (FPN1) were up-regulated , iron storage protein ferritin (FT) was increased. The protein levels of iron regulatory proteins (IRPs) and hepcidin remained unchanged, but hypoxia inducible factor 1 alpha (HIF-1α) was up-regulated. Two kinds of estrogen receptor β (ERβ) antagonist G15 and G protein estrogen receptor (GPER) antagonist PHTPPcould block the effects of E2 in BV2 microglial cell lines. These results suggest that estrogen could increase the protein expressions of DMT1, FPN1, FT-L and FT-H in BV2 microglia cells, which were not related to the regulation of IRP1 and hepcidin, but to the upregulation of HIF-1α. In addition, estrogen might regulate the expressions of iron-related proteins through both ER β and GPER in BV2 microglia cells.
Collapse
Affiliation(s)
- Yan Qu
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Na Li
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Manman Xu
- Institute of Brain Science and Disease, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China
| | - Danyang Zhang
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Junxia Xie
- Institute of Brain Science and Disease, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China.
| | - Jun Wang
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China.
- Institute of Brain Science and Disease, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Neurological Disorders, Qingdao University, Qingdao, 266071, China.
| |
Collapse
|
11
|
Shin MK, Kim H, Choi SH, Kim BJ, Kwon O. Sex-specific bi‑directional association between osteoporosis and depression from the national representative data of South Korea. Sci Rep 2022; 12:9500. [PMID: 35680922 PMCID: PMC9184731 DOI: 10.1038/s41598-022-13401-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Both osteoporosis and depression are major health threats, but their interrelationship is not clear. This study elucidated the associations between osteoporosis and depression while considering the temporal sequence of the diagnoses. In this cross-sectional study, data were extracted from the Korean National Health and Nutrition Examination Surveys (2007–2009 and 2015–2019, n = 29,045). Osteoporosis and depression were defined by diagnoses thereof. The odds ratio (OR) of the incident osteoporosis among depression patients without a history of osteoporosis was calculated by multivariable logistic regression adjusted for potential confounders. A reverse association was also assessed. Participants were additionally stratified by their sex and age. As a result, male depression patients aged under 50 years showed higher ORs for osteoporosis than those without depression (OR 9.16, 95% CI 1.78–47.18). Female osteoporosis patients showed lower ORs for depression than those without osteoporosis (OR 0.71, 95% CI 0.58–0.88), especially in women aged 50 years and older. In the sensitivity analysis, the same results were obtained in women by their menopause status. Depression has a strong positive association with the occurrence of osteoporosis in young male adults, and osteoporosis has a negative association with the occurrence of depression in female adults.
Collapse
Affiliation(s)
- Min Kyoung Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea.,Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Hyejin Kim
- Department of Public Health, Yonsei University Graduate School, Seoul, 03722, Korea
| | - Soo-Hee Choi
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, 03080, Korea.,Department of Psychiatry, Seoul National University Hospital, Seoul, 03080, Korea
| | - Beom-Jun Kim
- Department of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea
| | - Obin Kwon
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea. .,Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul, 03080, Korea.
| |
Collapse
|
12
|
Taneera J, Ali A, Hamad M. The Role of Estrogen Signaling in Cellular Iron Metabolism in Pancreatic β Cells. Pancreas 2022; 51:121-127. [PMID: 35404886 DOI: 10.1097/mpa.0000000000001978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
ABSTRACT Several lines of evidence suggest that estrogen (17-β estradiol; E2) protects against diabetes mellitus and plays important roles in pancreatic β-cell survival and function. Mounting clinical and experimental evidence also suggest that E2 modulates cellular iron metabolism by regulating the expression of several iron regulatory genes, including hepcidin (HAMP), hypoxia-inducible factor 1-α, ferroportin (SLC40A1), and lipocalin (LCN2). However, whether E2 regulates cellular iron metabolism in pancreatic β cells and whether the antidiabetic effects of E2 can be, at least partially, attributed to its role in iron metabolism is not known. In this context, pancreatic β cells express considerable levels of conventional E2 receptors (ERs; mainly ER-α) and nonconventional G protein-coupled estrogen receptors and hence responsive to E2 signals. Moreover, pancreatic islet cells require significant amounts of iron for proper functioning, replication and survival and, hence, well equipped to manage cellular iron metabolism (acquisition, utilization, storage, and release). In this review, we examine the link between E2 and cellular iron metabolism in pancreatic β cells and discuss the bearing of such a link on β-cell survival and function.
Collapse
Affiliation(s)
| | - Amjad Ali
- From the Research Institute for Medical and Health Sciences
| | - Mawieh Hamad
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| |
Collapse
|
13
|
Wang A, Zhang H, Li G, Chen B, Li J, Zhang T, Liu B, Cao Z, Liu G, Jia P, Xu Y. Deciphering core proteins of osteoporosis with iron accumulation by proteomics in human bone. Front Endocrinol (Lausanne) 2022; 13:961903. [PMID: 36313751 PMCID: PMC9614156 DOI: 10.3389/fendo.2022.961903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/28/2022] [Indexed: 11/13/2022] Open
Abstract
Iron accumulation is an independent risk factor for postmenopausal osteoporosis, but mechanistic studies of this phenomenon are still focusing on molecular and genetic researches in model animal. Osteoporosis with iron accumulation is a distinct endocrine disease with complicated pathogenesis regulated by several proteins. However, the comprehensive proteome-wide analysis of human bone is lacking. Using multiplex quantitative tandem mass tag-based proteomics, we detected 2900 and quantified 1150 proteins from bone of 10 postmenopausal patients undergoing hip replacement. Comparing with non-osteoporosis patients, a total of 75 differentially expressed proteins were identified, comprising 53 downregulated proteins and 22 upregulated proteins. These proteins primarily affect oxidoreductase activity, GTPase activity, GTP binding, and neural nucleus development, were mainly enriched in neural, angiogenesis and energy-related pathways, and formed complex regulatory networks with strong interconnections. We ultimately identified 4 core proteins (GSTP1, LAMP2, COPB1, RAB5B) that were significantly differentially expressed in the bone of osteoporosis patients with iron accumulation, and validated the changed protein level in the serum of the medical examination population. Our systemic analysis uncovers molecular insights for revealing underlying mechanism and clinical therapeutics in osteoporosis with iron accumulation.
Collapse
Affiliation(s)
- Aifei Wang
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Hui Zhang
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Guangfei Li
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Bin Chen
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Junjie Li
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Tao Zhang
- Cambridge-Suda Genomic Resource Centre, Soochow University, Suzhou, China
| | - Baoshan Liu
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Zihou Cao
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Gongwen Liu
- Department of Orthopedics, Suzhou Hospital of Traditional Chinese Medicine, Suzhou, China
| | - Peng Jia
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
- *Correspondence: Peng Jia, ; Youjia Xu,
| | - Youjia Xu
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, China
- Osteoporosis Institute, Soochow University, Suzhou, China
- *Correspondence: Peng Jia, ; Youjia Xu,
| |
Collapse
|
14
|
Liu LL, Liu GW, Liu H, Zhao K, Xu YJ. Iron accumulation deteriorated bone loss in estrogen-deficient rats. J Orthop Surg Res 2021; 16:525. [PMID: 34429140 PMCID: PMC8383398 DOI: 10.1186/s13018-021-02663-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/11/2021] [Indexed: 12/15/2022] Open
Abstract
Background Postmenopausal osteoporosis is characterized by an imbalance of bone resorption exceeding bone formation, resulting in a net loss of bone mass. Whether a menopause-related excess of iron contributes to the development of postmenopausal osteoporosis has remained unresolved due to a lack of an appropriate animal model. This study aimed to explore the effects of iron accumulation in bone mass in estrogen-deficient rats. Methods In the present study, ovariectomy (OVX) was performed in female rats and the changes of iron metabolism and some related modulated genes were detected. Ferric ammonium citrate (FAC) was used as a donor of iron for OVX rats. Moreover, micro-CT was performed to assess the bone microarchitecture in sham group, OVX, and FAC groups. Histological detection of iron in liver was assessed by Perl’s staining. The expressions of β-CTX and osteocalcin were assessed by ELISA. Results It was found that serum iron decreased after OVX. It was found that the expressions of Hepcidin in liver and Fpn, DMT-1 in duodenum significantly decreased at transcriptional level in OVX group than sham group. However, no difference existed in the expression of DMT-1. Then, ferric ammonium citrate (FAC) was used as a donor of iron for OVX rats. The FAC group manifested significant iron accumulation by increased serum iron and hepatic iron content. In addition, FAC treatment accelerated bone loss and decreased BMD and biomechanics in OVX rats. Moreover, bone biomarker β-CTX rather than osteocalcin increased significantly in FAC groups than OVX group. Conclusions In conclusion, no iron accumulation occurred in OVX rats. Furthermore, iron accumulation could further deteriorate osteopenia through enhanced bone resorption.
Collapse
Affiliation(s)
- Lu-Lin Liu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China.,Department of Orthopedics, Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China
| | - Gong-Wen Liu
- Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, Jiangsu, China
| | - Hui Liu
- Department of Orthopedics, Ganxian District Traditional Chinese Medicine Hospital of Ganzhou City, Ganzhou, 341100, Jiangxi, China
| | - Kai Zhao
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, China
| | - You-Jia Xu
- Department of Orthopedics, Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou, 215004, Jiangsu, China.
| |
Collapse
|
15
|
Milanese C, Gabriels S, Barnhoorn S, Cerri S, Ulusoy A, Gornati SV, Wallace DF, Blandini F, Di Monte DA, Subramaniam VN, Mastroberardino PG. Gender biased neuroprotective effect of Transferrin Receptor 2 deletion in multiple models of Parkinson's disease. Cell Death Differ 2021; 28:1720-1732. [PMID: 33323945 PMCID: PMC8166951 DOI: 10.1038/s41418-020-00698-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/16/2020] [Accepted: 11/24/2020] [Indexed: 01/28/2023] Open
Abstract
Alterations in the metabolism of iron and its accumulation in the substantia nigra pars compacta accompany the pathogenesis of Parkinson's disease (PD). Changes in iron homeostasis also occur during aging, which constitutes a PD major risk factor. As such, mitigation of iron overload via chelation strategies has been considered a plausible disease modifying approach. Iron chelation, however, is imperfect because of general undesired side effects and lack of specificity; more effective approaches would rely on targeting distinctive pathways responsible for iron overload in brain regions relevant to PD and, in particular, the substantia nigra. We have previously demonstrated that the Transferrin/Transferrin Receptor 2 (TfR2) iron import mechanism functions in nigral dopaminergic neurons, is perturbed in PD models and patients, and therefore constitutes a potential therapeutic target to halt iron accumulation. To validate this hypothesis, we generated mice with targeted deletion of TfR2 in dopaminergic neurons. In these animals, we modeled PD with multiple approaches, based either on neurotoxin exposure or alpha-synuclein proteotoxic mechanisms. We found that TfR2 deletion can provide neuroprotection against dopaminergic degeneration, and against PD- and aging-related iron overload. The effects, however, were significantly more pronounced in females rather than in males. Our data indicate that the TfR2 iron import pathway represents an amenable strategy to hamper PD progression. Data also suggest, however, that therapeutic strategies targeting TfR2 should consider a potential sexual dimorphism in neuroprotective response.
Collapse
Affiliation(s)
- Chiara Milanese
- Department of Molecular Genetics, Rotterdam, the Netherlands ,grid.7678.e0000 0004 1757 7797IFOM-The FIRC Institute of Molecular Oncology, Milan, Italy
| | - Sylvia Gabriels
- Department of Molecular Genetics, Rotterdam, the Netherlands
| | | | | | - Ayse Ulusoy
- grid.424247.30000 0004 0438 0426German Centre for Neurodegenerative Diseases (DZNE), 53175 Bonn, Germany
| | - S. V. Gornati
- grid.5645.2000000040459992XDepartment of Neuroscience Erasmus MC, Rotterdam, the Netherlands
| | - Daniel F. Wallace
- grid.1024.70000000089150953School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, QLD Australia
| | - Fabio Blandini
- IRCCS Mondino Foundation, 27100 Pavia, Italy ,grid.8982.b0000 0004 1762 5736Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Donato A. Di Monte
- grid.424247.30000 0004 0438 0426German Centre for Neurodegenerative Diseases (DZNE), 53175 Bonn, Germany
| | - V. Nathan Subramaniam
- grid.1024.70000000089150953School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Queensland University of Technology (QUT), Brisbane, QLD Australia
| | - Pier G. Mastroberardino
- Department of Molecular Genetics, Rotterdam, the Netherlands ,grid.7678.e0000 0004 1757 7797IFOM-The FIRC Institute of Molecular Oncology, Milan, Italy ,grid.158820.60000 0004 1757 2611Department of Life, Health, and Environmental Sciences, University of L’Aquila, L’Aquila, Italy
| |
Collapse
|
16
|
Zhang H, Wang A, Shen G, Wang X, Liu G, Yang F, Chen B, Wang M, Xu Y. Hepcidin-induced reduction in iron content and PGC-1β expression negatively regulates osteoclast differentiation to play a protective role in postmenopausal osteoporosis. Aging (Albany NY) 2021; 13:11296-11314. [PMID: 33820875 PMCID: PMC8109081 DOI: 10.18632/aging.202817] [Citation(s) in RCA: 25] [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: 09/19/2020] [Accepted: 11/30/2020] [Indexed: 12/20/2022]
Abstract
As a necessary trace element, iron is involved in many physiological processes. Clinical and basic studies have found that disturbances in iron metabolism, especially iron overload, might lead to bone loss and even be involved in postmenopausal osteoporosis. Hepcidin is a key regulator of iron homeostasis. However, the exact role of hepcidin in bone metabolism and the underlying mechanism remain unknown. In this study, we found that in postmenopausal osteoporosis cohort, the concentration of hepcidin in the serum was significantly reduced and positively correlated with bone mineral density. Ovariectomized (OVX) mice were then used to construct an osteoporosis model. Hepcidin overexpression in these mice significantly improved bone mass and rescued the phenotype of bone loss. Additionally, overexpression of hepcidin in OVX mice greatly reduced the number and differentiation of osteoclasts in vivo and in vitro. This study found that overexpression of hepcidin significantly inhibited ROS production, mitochondrial biogenesis, and PGC-1β expression. These data showed that hepcidin protected osteoporosis by reducing iron levels in bone tissue, and in conjunction with PGC-1β, reduced ROS production and the number of mitochondria, thus inhibiting osteoclast differentiation and bone absorption. Hepcidin could provide new targets for the clinical treatment of postmenopausal osteoporosis.
Collapse
Affiliation(s)
- Hui Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Aifei Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Guangsi Shen
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Xiao Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Gongwen Liu
- Department of Orthopaedics, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215004, China
| | - Fan Yang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Bin Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Mingyong Wang
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| | - Youjia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Osteoporosis Clinical Center, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
- Institute of Osteoporosis Diagnosis and Treatments of Soochow University, Suzhou 215004, China
| |
Collapse
|
17
|
Li B, Liu Z, Li L, Xing Y, Liu Y, Yang X, Pei M, Zhang G. A Schiff base sensor for relay monitoring of In3+ and Fe3+ through “off–on–off” fluorescent signals. NEW J CHEM 2021. [DOI: 10.1039/d1nj00929j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Schiff base N′-(3-ethoxy-2-hydroxybenzylidene)-4,5-dihydronaphtho[1,2-b]thiophene-2-carbohydrazide (LB2) was designed and synthesized and could be used as a sensor to identify In3+ and Fe3+ through fluorescence ‘off–on–off’ behavior.
Collapse
Affiliation(s)
- Bing Li
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Zhihua Liu
- Henan Sanmenxia Aoke Chemical Industry Co. Ltd
- Sanmenxia
- China
| | - Linlin Li
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Yujing Xing
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Yuanying Liu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Xiaofeng Yang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Meishan Pei
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Guangyou Zhang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| |
Collapse
|
18
|
Yu P, Zheng L, Wang P, Chai S, Zhang Y, Shi T, Zhang L, Peng R, Huang C, Guo B, Jiang Q. Development of a novel polysaccharide-based iron oxide nanoparticle to prevent iron accumulation-related osteoporosis by scavenging reactive oxygen species. Int J Biol Macromol 2020; 165:1634-1645. [PMID: 33049237 DOI: 10.1016/j.ijbiomac.2020.10.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/26/2020] [Accepted: 10/02/2020] [Indexed: 02/06/2023]
Abstract
In this work, the biological polysaccharide-based antioxidant polyglucose-sorbitol-carboxymethyl ether (PSC) was used as the precursor to synthesize Fe2O3@PSC nanoparticles, which are expected to scavenge excess reactive oxygen species (ROS) to inhibit osteogenesis and promote osteoclast differentiation in iron accumulation (IA)-related osteoporosis. The Fe2O3@PSC nanoparticles obtained were of a uniform particle size of 7.3 nm with elemental O/Fe/Cl/C at a ratio of 190:7:2:88. In addition, the Fe2O3@PSC nanoparticles showed the ability to supply equivalent amounts of iron as the typical iron agent ferric ammonium citrate (FAC) in vitro and in vivo. Importantly, the Fe2O3@PSC nanoparticles not only induced antioxidative MC3T3-E1 and Raw 264.7 cells to scavenge ROS but also promoted osteogenic differentiation by activating Akt-GSK-3β-β-catenin and inhibiting osteoclast differentiation by inhibiting the MAPK and NF-κB pathways in vitro. In vivo, no IA-related osteoporosis was induced in a mouse model when enough iron was supplied by the Fe2O3@PSC nanoparticles. Overall, the biological polysaccharide-based antioxidant PSC can supply iron and prevent IA-related osteoporosis, indicating that it is a promising novel iron agent for applications to treat iron deficiency diseases.
Collapse
Affiliation(s)
- Pengjun Yu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Liming Zheng
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Peng Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Senlin Chai
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Yibo Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Tianshu Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Lei Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Rui Peng
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China
| | - Caoxing Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China.
| | - Baosheng Guo
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China.
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing 210008, Jiangsu, PR China; Laboratory for Bone and Joint Disease, Model Animal Research Center (MARC), Nanjing University, Nanjing 210093, Jiangsu, PR China.
| |
Collapse
|
19
|
Grubić Kezele T, Ćurko-Cofek B. Age-Related Changes and Sex-Related Differences in Brain Iron Metabolism. Nutrients 2020; 12:E2601. [PMID: 32867052 PMCID: PMC7551829 DOI: 10.3390/nu12092601] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 12/21/2022] Open
Abstract
Iron is an essential element that participates in numerous cellular processes. Any disruption of iron homeostasis leads to either iron deficiency or iron overload, which can be detrimental for humans' health, especially in elderly. Each of these changes contributes to the faster development of many neurological disorders or stimulates progression of already present diseases. Age-related cellular and molecular alterations in iron metabolism can also lead to iron dyshomeostasis and deposition. Iron deposits can contribute to the development of inflammation, abnormal protein aggregation, and degeneration in the central nervous system (CNS), leading to the progressive decline in cognitive processes, contributing to pathophysiology of stroke and dysfunctions of body metabolism. Besides, since iron plays an important role in both neuroprotection and neurodegeneration, dietary iron homeostasis should be considered with caution. Recently, there has been increased interest in sex-related differences in iron metabolism and iron homeostasis. These differences have not yet been fully elucidated. In this review we will discuss the latest discoveries in iron metabolism, age-related changes, along with the sex differences in iron content in serum and brain, within the healthy aging population and in neurological disorders such as multiple sclerosis, Parkinson's disease, Alzheimer's disease, and stroke.
Collapse
Affiliation(s)
- Tanja Grubić Kezele
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia;
- Clinical Department for Clinical Microbiology, Clinical Hospital Center Rijeka, Krešimirova 42, 51000 Rijeka, Croatia
| | - Božena Ćurko-Cofek
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia;
| |
Collapse
|
20
|
Estrogen signaling differentially alters iron metabolism in monocytes in an Interleukin 6-dependent manner. Immunobiology 2020; 225:151995. [PMID: 32962815 DOI: 10.1016/j.imbio.2020.151995] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 07/20/2020] [Accepted: 07/29/2020] [Indexed: 01/16/2023]
Abstract
The ability of monocytes to release or sequester iron affects their role in cancer and inflammation. Previous work has shown that while IL-6 upregulates hepcidin synthesis and enhances iron sequestration, E2 reduces hepcidin synthesis and increases iron release. Given that E2 upregulates IL-6 production in monocytes, it is likely that the exact effect of E2 on iron metabolism in monocytes is shaped by its effect on IL-6 expression. To address this issue, the expression of key iron regulatory proteins was assessed in E2-treated U937, HuT-78, THP-1 and Hep-G2 cells. Iron status was also evaluated in U937 cells treated with the ERα agonist PPT, the ER antagonist ICI-182780, dexamethasone + E2, IL-6 + E2 and in IL-6-silenced U937 cells. E2 treatment reduced hepcidin synthesis in HuT-78, THP-1 and Hep-G2 cells but increased hepcidin synthesis and reduced FPN expression in U937 cells. E2-treated U937 cells also showed reduced HIF-1α and FTH expression and increased TFR1 expression, which associated with increased labile iron content as compared with similarly treated Hep-G2 cells. While treatment of U937 cells with interleukin 6 (IL-6) resulted in increased expression of hepcidin, dexamethasone treatment resulted in reduced hepcidin synthesis relative to E2- or dexamethasone + E2-treated cells; IL-6 silencing also resulted in reduced hepcidin synthesis in U937 cells. Lastly, while iron depletion resulted in increased cell death in U937 cells, E2 treatment resulted in enhanced cell survival and reduced apoptosis. These findings suggest that E2 differentially alters iron metabolism in monocytes in an IL-6 dependent manner.
Collapse
|
21
|
Wagner A, Alan B, Yilmaz D, Ahmad M, Liu P, Tangudu NK, Tuckermann JP, Vujic Spasic M. Despite Genetic Iron Overload, Hfe-Hemochromatosis Mice Do Not Show Bone Loss. JBMR Plus 2019; 3:e10206. [PMID: 31667458 PMCID: PMC6808227 DOI: 10.1002/jbm4.10206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 05/13/2019] [Accepted: 05/21/2019] [Indexed: 12/15/2022] Open
Abstract
One of the most prevalent genetic iron overload disorders in Caucasians is caused by mutations in the HFE gene. Both HFE patients and Hfe‐mouse models develop a progressive accumulation of iron in the parenchymal cells of various tissues, eventually resulting in liver cirrhosis, hepatocellular carcinoma, cardiomyopathies, hypogonadism, and other pathologies. Clinical data and preclinical models have brought considerable attention to the correlation between iron overload and the development of osteoporosis in HFE/Hfe hemochromatosis. Our study critically challenges this concept. We show that systemic iron overload, at the degree present in Hfe−/− mice, does not associate with the microarchitecture impairment of long bones, thus excluding a negative effect of iron overload on bone integrity. We further reveal that Hfe actions in osteoblasts and osteoclasts are dispensable for the maintenance of bone and iron homeostasis in mice under steady‐state conditions. We conclude that, despite systemic iron overload, Hfe−/− mice present normal physiological bone homeostasis. © 2019 The Authors. JBMR Plus in published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Alessa Wagner
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| | - Betül Alan
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| | - Dilay Yilmaz
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| | - Mubashir Ahmad
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| | - Peng Liu
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| | | | - Jan P Tuckermann
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| | - Maja Vujic Spasic
- Institute of Comparative Molecular Endocrinology, University of Ulm Ulm Germany
| |
Collapse
|
22
|
Song F, Shao X, Zhu J, Bao X, Du L, Kan C. Reversible “turn-off-on” fluorescence response of Fe(III) towards Rhodamine B based probe in vivo and plant tissues. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
23
|
Yuan Y, Xu F, Cao Y, Xu L, Yu C, Yang F, Zhang P, Wang L, Shen G, Wang J, Xu Y. Iron Accumulation Leads to Bone Loss by Inducing Mesenchymal Stem Cell Apoptosis Through the Activation of Caspase3. Biol Trace Elem Res 2019; 187:434-441. [PMID: 29948914 DOI: 10.1007/s12011-018-1388-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/14/2018] [Indexed: 12/18/2022]
Abstract
Osteoporosis (OP) is a disease associated with bone loss and microstructure degradation. Recent studies have shown that iron accumulation may be a risk factor for OP. Bone marrow mesenchymal stem cells (MSCs) are multipotent cells and precursors to osteoblasts. MSCs play an important role in OP. Therefore, we evaluated the correlation between MSCs and OP in an environment of iron accumulation. Serum P1NP was decreased in iron accumulation mice. Micro-CT revealed that iron accumulation decreased bone mineral density and spatial structural parameters. Iron accumulation inhibited MSC quantity in bone marrow. However, the iron chelator deferoxamine (DFO) rescued the suppression. Iron accumulation also changed the MSC cell cycle. Iron elevated MSC cell ROS level and NOX4 protein expression. MSC apoptosis was increased, and more caspase3 was cleaved after iron intervention. Our data suggests that iron accumulation inhibits MSC quantity and induces MSC apoptosis. Bone loss from iron accumulation may correlate with the inhibition of MSCs.
Collapse
Affiliation(s)
- Ye Yuan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Fei Xu
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Yan Cao
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
| | - Li Xu
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
| | - Chen Yu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Fan Yang
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China
| | - Peng Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Liang Wang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Guangsi Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Jianrong Wang
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
| | - Youjia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China.
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China.
| |
Collapse
|
24
|
Dwivedi R, Singh DP, Singh S, Singh AK, Chauhan BS, Srikrishna S, Singh VP. Logic gate behavior and intracellular application of a fluorescent molecular switch for the detection of Fe3+ and cascade sensing of F− in pure aqueous media. Org Biomol Chem 2019; 17:7497-7506. [DOI: 10.1039/c9ob01398a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nature and coordination sites of a Schiff base 3,3′-(1E,1′E)-(1,3-phenylenebis(azan-1-yl-1-ylidene))bis(methan-1-yl-1-ylidene)dinaphthalen-2-ol (APHN), are tuned by its selective reduction to design a highly efficient fluorescent probe RAPHN.
Collapse
Affiliation(s)
- Romi Dwivedi
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Divya P. Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Saumya Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Ashish K. Singh
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi-221005
- India
| | - Brijesh S. Chauhan
- Department of Bio Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - S. Srikrishna
- Department of Bio Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Vinod P. Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221005
- India
| |
Collapse
|
25
|
Stoicea N, Magal S, Kim JK, Bai M, Rogers B, Bergese SD. Post-acute Transitional Journey: Caring for Orthopedic Surgery Patients in the United States. Front Med (Lausanne) 2018; 5:342. [PMID: 30581817 PMCID: PMC6292951 DOI: 10.3389/fmed.2018.00342] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/21/2018] [Indexed: 02/03/2023] Open
Abstract
As the geriatric population in the United States continues to age, there will be an increased demand for total hip and total knee arthroplasties (THAs and TKAs). Older patients tend to have more comorbidities and poorer health, and will require post-acute care (PAC) following discharge. The most utilized PAC facilities following THA and TKA are skilled nursing facilities (SNFs), in-patient rehabilitation facilities (IRFs), and home with home health care (HHC). Coordination of care between hospitals and PACs, including the complete transfer of patient information, continues to be a challenge which impacts the quality of care provided by the PACs. The increased demand of hospital resources and PACs by the geriatric population necessitates an improvement in this transition of care process. This review aims to examine the transition of care process currently utilized in the United States for orthopedic surgery patients, and discuss methods for improvement. Employing these approaches will play a key role in improving patient outcomes, decreasing preventable hospital readmissions, and reducing mortality following THA and TKA. The extensive nature of this topic and the ramification of different types of healthcare systems in different countries were the determinant factors limiting our work.
Collapse
Affiliation(s)
- Nicoleta Stoicea
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Samarchitha Magal
- College of Medicine and Life Sciences, University of Toledo, Toledo, OH, United States
| | - January K Kim
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Michael Bai
- College of Medicine, The Ohio State University, Columbus, OH, United States
| | - Barbara Rogers
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Sergio Daniel Bergese
- Department of Anesthesiology, Wexner Medical Center, The Ohio State University, Columbus, OH, United States.,Department of Neurological Surgery, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| |
Collapse
|
26
|
Wang Y, Song F, Zhu J, Zhang Y, Du L, Kan C. Highly selective fluorescent probe based on a rhodamine B and furan-2-carbonyl chloride conjugate for detection of Fe3+ in cells. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
27
|
Wang X, Chen B, Sun J, Jiang Y, Zhang H, Zhang P, Fei B, Xu Y. Iron-induced oxidative stress stimulates osteoclast differentiation via NF-κB signaling pathway in mouse model. Metabolism 2018; 83:167-176. [PMID: 29378199 DOI: 10.1016/j.metabol.2018.01.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 01/15/2018] [Accepted: 01/17/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Women transitioned to postmenopausal status experience a corresponding gain in iron stores. Recently clinical researches have observed increased serum ferritin level in postmenopausal women, and ferritin level was negatively correlated with bone mineral density. PURPOSE To explore the mechanism of iron-induced osteopenia in mouse model. METHODS Briefly, in this study, we established an iron accumulation mouse model with ovariectomy. Primary osteoclasts and osteoblasts were extracted for this research. Biomarkers of bone metabolism and cell signaling pathways were measured. RESULTS We found that bone mass changed later than ferritin and decreased gradually following overiectomy. We also observed higher levels of bone resorption and oxidative stress when iron was administered. When stimulated with iron, primary osteoclasts derived from bone marrow-derived macrophages (BMMs) underwent differentiation and numerous reactive oxygen species (ROS) were generated. Further, we found that iron activated the JNK, ERK and NF-κB signaling pathways in vivo. In vitro, we found that only NF-κB signaling was stimulated by iron and that suppression of this pathway blocked osteoclast differentiation. To determine whether these effects were related to ROS, osteoclasts were treated with H2O2. We found that ROS stimulated osteoclast activity, and that this effect was reversed upon NF-κB suppression. CONCLUSIONS These data suggest that ROS might be a downstream factor of iron and regulated NF-κB signaling in osteoclasts in mouse model.
Collapse
Affiliation(s)
- Xiao Wang
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China
| | - Bin Chen
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China
| | - Jingyue Sun
- Department of Oncology, First Affiliated Hospital of Soochow University, 215006 Suzhou, China
| | - Yu Jiang
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China
| | - Hui Zhang
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China
| | - Peng Zhang
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China
| | - Beibei Fei
- Department of Gynaecology, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China
| | - Youjia Xu
- Department of Orthopaedics, Second Affiliated Hospital of Soochow University, 215004 Suzhou, China; Osteoporosis Institute, Soochow University, 215004 Suzhou, China.
| |
Collapse
|
28
|
Zhang P, Wang S, Wang L, Shan BC, Zhang H, Yang F, Zhou ZQ, Wang X, Yuan Y, Xu YJ. Hepcidin is an endogenous protective factor for osteoporosis by reducing iron levels. J Mol Endocrinol 2018; 60:297-306. [PMID: 29563156 DOI: 10.1530/jme-17-0301] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 03/21/2018] [Indexed: 12/19/2022]
Abstract
Postmenopausal osteoporosis is a global health issue. Although a lack of estrogen is considered the major reason for postmenopausal osteoporosis, other factors might also contribute the etiology of the disease. In previous reports, we and others proposed that iron accumulation after menopause accelerates osteoporosis, and here, we genetically modified the expression of an endogenous hormone, hepcidin, to modulate iron status in a mouse model. Our results show that hepcidin levels negatively correlate with bone loss in both knockout and overexpression (with ovariectomy) murine models. In addition, iron overload enhances reactive oxygen species (ROS) activity and attenuates the functions of primary osteoblasts, while iron depletion could reverse this phenomenon through inhibiting the functions of primary osteoclasts. Therefore, our results provide more evidence of the 'iron accumulation' hypothesis, which suggests that high iron levels are risk factors for osteoporosis, and the 'Huang's hypothesis' that hepcidin is a potential drug target for the prevention of postmenopausal osteoporosis.
Collapse
Affiliation(s)
- Peng Zhang
- Department of Orthopaedicsthe Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Sheng Wang
- Emergency DepartmentZhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Liang Wang
- Department of RadiologyChildren's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Bin Chen Shan
- Department of Orthopaedicsthe Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Hui Zhang
- Osteoprosis Institute of Soochow UniversitySuzhou, China
| | - Fan Yang
- Osteoprosis Institute of Soochow UniversitySuzhou, China
| | - Zhi Qiang Zhou
- Department of Orthopaedicsthe Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiao Wang
- Osteoprosis Institute of Soochow UniversitySuzhou, China
| | - Ye Yuan
- Osteoprosis Institute of Soochow UniversitySuzhou, China
| | - You Jia Xu
- Department of Orthopaedicsthe Second Affiliated Hospital of Soochow University, Suzhou, China
- Osteoprosis Institute of Soochow UniversitySuzhou, China
| |
Collapse
|
29
|
Chenbhanich J, Thongprayoon C, Atsawarungruangkit A, Phupitakphol T, Cheungpasitporn W. Osteoporosis and bone mineral density in patients with Wilson's disease: a systematic review and meta-analysis. Osteoporos Int 2018; 29:315-322. [PMID: 29110062 DOI: 10.1007/s00198-017-4295-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 10/27/2017] [Indexed: 02/07/2023]
Abstract
This systematic review aims to assess the occurrence and risks of osteopenia and osteoporosis in patientswith Wilson's disease (WD). A literature search was conducted utilizing EMBASE and MEDLINE frominception through April 2017. Studies assessing the occurrence or risk of osteopenia and/or osteoporosis inWD patients were included. Effect estimates from the individual study were extracted and combined usingrandom-effect, generic inverse variance method of DerSimonian and Laird. Of 754 studies, four studies with283 WD patients met the eligibility criteria and were included in the data analysis. The pooled prevalencerates of osteopenia and osteoporosis in WD patients were 36.5% (95% confidence interval [CI]: 14.8%-65.7%) and 27.7% (95%CI: 8.6%-60.9%), respectively. When meta-analysis was limited only to adults, the estimated prevalence rates of osteopenia, osteoporosis, and vertebral fracture were 50.0% (95%CI: 42.0%-58.0%), 17.6% (95%CI: 6.7%-38.6%) and 8.01% (95%CI: 4.05%-15.2%), respectively. Meta-regressionshowed significant impacts of age (negative correlation; P=0.002) and male status (positive correlation;P < 0.001) on the prevalence of osteoporosis. The data on risks of osteopenia and osteoporosis in WDpatients were limited. We suggests that there are potential associations of WD with osteopenia and/orosteoporosis. Also, young age and male status are correlated with the higher prevalence of osteoporosis inWD patients.
Collapse
Affiliation(s)
- J Chenbhanich
- Department of Internal Medicine, Metrowest Medical Center, 115 Lincoln St, Framingham, MA, 01702, USA.
| | - C Thongprayoon
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - A Atsawarungruangkit
- Department of Internal Medicine, Metrowest Medical Center, 115 Lincoln St, Framingham, MA, 01702, USA
| | - T Phupitakphol
- Department of Internal Medicine, Metrowest Medical Center, 115 Lincoln St, Framingham, MA, 01702, USA
| | - W Cheungpasitporn
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA
- Division of Nephrology, Department of Internal Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| |
Collapse
|
30
|
Jia F, Sun R, Li J, Li Q, Chen G, Fu W. Interactions of Pri-miRNA-34b/c and TP53 Polymorphisms on the Risk of Osteoporosis. Genet Test Mol Biomarkers 2016; 20:398-401. [PMID: 27227383 DOI: 10.1089/gtmb.2015.0282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Osteoporosis (OP) is a common, multifactorial disorder. Here, we investigated the association between polymorphisms in pri-miR-34b/c (rs4938723) and TP53 (Arg72Pro) and the prevalence of OP. METHODS A total of 681 individuals were assessed in a case-control study, including 310 patients with OP and 371 controls. Variants in pri-miR-34b/c and TP53 were identified using a polymerase chain reaction-restriction fragment length polymorphism method. RESULTS The presence of the CC and CT/CC pri-miR-34b/c genotypes were associated with a significantly reduced risk of OP compared with the TT genotype (CC vs. TT: odds ratio [OR] = 0.32, 95% confidence intervals [CI] = 0.17-0.59; p < 0.001; CT/CC vs. TT: OR = 0.69, 95% CI = 0.51-0.93; p = 0.016). The CC genotype was also associated with a significantly reduced OP risk compared with the TT/CT genotypes (OR = 0.35, 95% CI = 0.19-0.64; p < 0.001). Furthermore, compared with the carriers of the Arg72Pro GG genotype, carriers of the CC genotype had a 2.21-fold increased OP risk (95% CI = 1.45-3.37; p < 0.001) and CG/CC genotypes carriers had a 1.96-fold increased OP risk (95% CI = 1.39-2.76; p < 0.001). CONCLUSIONS The present findings indicate that pri-miR-34b/c rs4938723 and TP53 Arg72Pro polymorphisms may contribute to the risk of OP.
Collapse
Affiliation(s)
- Fu Jia
- 1 Department of Orthopedic Surgery, West China Hospital of Sichuan University , Chengdu, China .,2 Department of Orthopedic, National Clinical Key Specialty, Yunnan Hospital, Kunming Medical University , Kunming, China
| | - Ruifen Sun
- 3 Central Laboratory, Yunnan University of Chinese Traditional Medicine , Kunming, China
| | - Jian Li
- 1 Department of Orthopedic Surgery, West China Hospital of Sichuan University , Chengdu, China
| | - Qi Li
- 1 Department of Orthopedic Surgery, West China Hospital of Sichuan University , Chengdu, China
| | - Gang Chen
- 1 Department of Orthopedic Surgery, West China Hospital of Sichuan University , Chengdu, China
| | - Weili Fu
- 1 Department of Orthopedic Surgery, West China Hospital of Sichuan University , Chengdu, China
| |
Collapse
|
31
|
Jiang Y, Yan Y, Wang X, Zhu G, Xu YJ. Hepcidin inhibition on the effect of osteogenesis in zebrafish. Biochem Biophys Res Commun 2016; 476:1-6. [PMID: 27233600 DOI: 10.1016/j.bbrc.2016.05.118] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 05/23/2016] [Indexed: 12/26/2022]
Abstract
Iron overload, as a risk factor for osteoporosis, can result in the up-regulation of Hepcidin, and Hepcidin knockout mice display defects in their bone microarchitecture. However, the molecular and genetic mechanisms underlying Hepcidin deficiency-derived bone loss remain unclear. Here, we show that hepcidin knockdown in zebrafish using morpholinos leads to iron overload. Furthermore, a mineralization delay is observed in osteoblast cells in hepcidin morphants, and these defects could be partially restored with microinjection of hepcidin mRNA. Quantitative real-time PCR analyses revealed the osteoblast-specific genes alp, runx2a, runx2b, and sp7 in morphants are down-regulated. Furthermore, we confirmed qRT-PCR results by in situ hybridization and found down-regulated genes related to osteoblast function in hepcidin morphants. Most importantly, we revealed that hepcidin was capable of removing whole-body iron which facilitated larval recovery from the reductions in bone formation and osteogenesis induced by iron overload.
Collapse
Affiliation(s)
- Yu Jiang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China; Department of Orthopedics, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214000, China; Osteoporosis Diagnosis and Treatment Technology, Institute of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China
| | - Yilin Yan
- Institute of Neuroscience, University of Oregon, Eugene, OR, USA
| | - Xiao Wang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China; Osteoporosis Diagnosis and Treatment Technology, Institute of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China
| | - Guoxing Zhu
- Department of Orthopedics, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214000, China.
| | - You-Jia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China; Osteoporosis Diagnosis and Treatment Technology, Institute of Soochow University, 1055 Sanxiang Road, Suzhou 215004, China.
| |
Collapse
|
32
|
Xu W, Xu J, Zhao J, Sun J. Quantitative study of osteoporosis model based on synchrotron radiation. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2016; 2015:6378-81. [PMID: 26737752 DOI: 10.1109/embc.2015.7319852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
To investigate the changes of different periods of primary osteoporosis, we made quantitative analysis of osteoporosis using synchrotron radiation computed tomography (SRCT), together with histomorphometry analysis and finite element analysis (FEA). Tibias, femurs and lumbar vertebras were dissected from sham-ovariectomy rats and ovariectomized rats suffering from osteoporosis at certain time points. The samples were scanned by SRCT and then FEA was applied based on reconstructed slices. Histomorphometry analysis showed that the structure of some trabecular in osteoporosis degraded as the bone volume decreased, for femurs, the bone volume fraction (BV/TV) decreased from 69% to 43%. That led to the increase of the thickness of trabecular separation (from 45.05μm to 97.09μm) and the reduction of the number of trabecular (from 7.99 mm(-1) to 5.97mm(-1)). Simulation of various mechanical tests indicated that, with the exacerbation of osteoporosis, the bones' ability of resistance to compression, bending and torsion gradually became weaker. The compression stiffness decreased from 1770.96 Fμm(-1) to 697.41 Fμm(-1), and it matched the histomorphometry analysis. This study suggested that the combination of both analysis could quantitatively analyze the bone strength in good accuracy.
Collapse
|
33
|
Xiao W, Beibei F, Guangsi S, Yu J, Wen Z, Xi H, Youjia X. Iron overload increases osteoclastogenesis and aggravates the effects of ovariectomy on bone mass. J Endocrinol 2015; 226:121-34. [PMID: 26116610 DOI: 10.1530/joe-14-0657] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/22/2015] [Indexed: 01/19/2023]
Abstract
Postmenopausal osteoporosis is a metabolic disease associated with estrogen deficiency. The results of numerous studies have revealed the positive correlation between iron accumulation and postmenopausal osteoporotic status. Although the results of previous studies have indicated that estrogen or iron alone have an effect on bone metabolism, their combined effects are not well defined. Using an in vivo mouse model, we found that bone mass was minimally affected by an excess of iron in the presence of estrogen. Once the source of estrogen was removed (ovariectomy), iron accumulation significantly decreased bone mass. These effects were accompanied by fluctuations in the level of oxidative stress. To determine whether these effects were related to bone formation or bone resorption, primary osteoblasts (OBs), RAW264.7 cells, and bone-marrow-derived macrophages were used for in vitro experiments. We found that iron accumulation did inhibit the activity of OBs. However, estrogen had little effect on this inhibition. In contrast, iron promoted osteoclast differentiation through the production of reactive oxygen species. Estrogen, a powerful reactive oxygen scavenger, suppressed this effect in osteoclasts. Our data provided direct evidence that iron affected the bone mass only in the absence of estrogen. The inhibitory effect of estrogen on iron-induced osteopenia was particularly relevant to bone resorption rather than bone formation.
Collapse
Affiliation(s)
- Wang Xiao
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| | - Fei Beibei
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| | - Shen Guangsi
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| | - Jiang Yu
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| | - Zhang Wen
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| | - Huang Xi
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| | - Xu Youjia
- Departments of OrthopaedicsGynaecologyThe Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, 215004 Suzhou, ChinaDepartment of Orthopaedic Research InstitutionSoochow University, 215004 Suzhou, ChinaDepartment of MedicineNew York University School of Medicine, 10016 New York, New York, USA
| |
Collapse
|
34
|
Chen B, Li GF, Shen Y, Huang XI, Xu YJ. Reducing iron accumulation: A potential approach for the prevention and treatment of postmenopausal osteoporosis. Exp Ther Med 2015; 10:7-11. [PMID: 26170904 DOI: 10.3892/etm.2015.2484] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 04/27/2015] [Indexed: 01/21/2023] Open
Abstract
Postmenopausal osteoporosis (PMOP) is a systemic bone metabolism disease, characterized by progressive bone loss following menopause and a subsequent increase in fracture risk. Estrogen deficiency as a result of menopause is known to increase bone resorption and accelerate bone loss. Furthermore, postmenopausal women may exhibit iron accumulation, in addition to estrogen deficiency. Elevated iron levels are a risk factor for PMOP in postmenopausal women, and reducing the iron overload has been demonstrated to benefit bone cell metabolism in vitro and improve the bone in vivo by normalizing osteoclastic bone resorption and formation. The identification of hepcidin was a key development in the field of iron metabolism in the previous decade. We hypothesize that hepcidin may aid in the prevention and treatment of PMOP due to its capacity to control body iron stores and its intrinsic effects on osteoblast function. The aim of the current review was to highlight the role of iron accumulation in the pathogenesis of PMOP and to evaluate the possible use of hepcidin as a potential therapy for this condition.
Collapse
Affiliation(s)
- Bin Chen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Guang-Fei Li
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Ying Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - X I Huang
- Division of Rheumatology, NYU Hospital for Joint Diseases, New York, NY 10003, USA
| | - You-Jia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| |
Collapse
|
35
|
Yen CM, Kuo CL, Lin MC, Lee CF, Lin KY, Lin CL, Chang SN, Sung FC, Kao CH. Sleep disorders increase the risk of osteoporosis: a nationwide population-based cohort study. Sleep Med 2014; 15:1339-44. [PMID: 25224072 DOI: 10.1016/j.sleep.2014.07.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 06/23/2014] [Accepted: 07/03/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND This study evaluated the relationship between sleep disorders (SDs) and osteoporosis risk in Taiwan. METHODS From the Taiwan National Health Insurance data, we identified 44,690 newly diagnosed SD patients (846 with apnea and 43,844 without) from 1998 to 2001 and 89,380 comparisons without SD in the same period frequency matched by sex, age and diagnosis year. Incident osteoporosis was measured by the end of 2010. RESULT Patients with apnea-SD and nonapnea SD exhibited a higher osteoporosis incidence rate than did the comparisons (9.97 and 13.3 vs. 6.77 per 1000 person-years, respectively). The Cox method estimated adjusted hazard ratio (HR) of osteoporosis was 2.98 (95% confidence interval [CI] = 2.36-3.74) in apnea-SD patients, compared with 2.76 (95% CI = 2.64-2.88) in nonapnea-SD patients after controlling for sex, age, comorbidities, and treatment. Greater HRs of osteoporosis were observed for female patients (4.00, 95% CI = 3.72-4.29) and those aged >64 years (42.0, 95% CI = 33.5-52.7) in the apnea SD sub-cohort. Apnea SD was associated with the highest risk of osteoporosis without fracture compared with both the nonapnea SD sub-cohort and comparisons. CONCLUSION Patients with sleep disorders have an elevated risk of osteoporosis, especially for women and the elderly.
Collapse
Affiliation(s)
- Chia-Ming Yen
- Department of Anesthesiology, Buddhist Tzu Chi General Hospital, Taichung Branch, Taichung, Taiwan
| | - Chi-Ling Kuo
- Department of Nuclear Medicine, New Taipei City Hospital, Sanchong Branch, Taipei, Taiwan
| | - Ming-Chia Lin
- Department of Nuclear Medicine, E-DA Hospital, Kaohsiung, Taiwan
| | - Chun-Feng Lee
- Department of Oral and Maxillofacial Surgery, Buddhist Tzu Chi General Hospital, Taichung Branch, Taichung, Taiwan
| | - Kuan-Yu Lin
- Department of Nursing, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Cheng-Li Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Shih-Ni Chang
- Department of Medical Research, Taichung Veterans General Hospital, Taiwan
| | - Fung-Chang Sung
- Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
| | - Chia-Hung Kao
- Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan.
| |
Collapse
|
36
|
Shen GS, Yang Q, Jian JL, Zhao GY, Liu LL, Wang X, Zhang W, Huang X, Xu YJ. Hepcidin1 knockout mice display defects in bone microarchitecture and changes of bone formation markers. Calcif Tissue Int 2014; 94:632-9. [PMID: 24652331 DOI: 10.1007/s00223-014-9845-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 03/06/2014] [Indexed: 01/14/2023]
Abstract
Iron accumulation is a risk factor of osteoporosis; mechanisms leading to iron-related bone loss are not fully determined. We sought to better understand the effect of chronic iron accumulation on bone over the life span in a mouse model. Hepcidin1 knockout (Hepc1(-/-)) male mice and their littermate control wild type (WT) mice at 7 months old were used in this study. Serum iron and ferritin as well as iron contents in liver and femur were significantly increased in Hepc1(-/-) mice compared to WT mice. We found that Hepc1(-/-) mice had a phenotype of low bone mass and alteration of the bone microarchitecture, most likely caused by a decreased osteoblastic activity. Cell culture studies indicated that chronic iron accumulation decreased bone formation, probably by affecting bone morphogenetic protein signaling.
Collapse
Affiliation(s)
- Guang Si Shen
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | | | | | | | | | | | | | | | | |
Collapse
|