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Smith C, Lin X, Parker L, Yeap BB, Hayes A, Levinger I. The role of bone in energy metabolism: A focus on osteocalcin. Bone 2024; 188:117238. [PMID: 39153587 DOI: 10.1016/j.bone.2024.117238] [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: 04/08/2024] [Revised: 08/06/2024] [Accepted: 08/14/2024] [Indexed: 08/19/2024]
Abstract
Understanding the mechanisms involved in whole body glucose regulation is key for the discovery of new treatments for type 2 diabetes (T2D). Historically, glucose regulation was largely focused on responses to insulin and glucagon. Impacts of incretin-based therapies, and importance of muscle mass, are also highly relevant. Recently, bone was recognized as an endocrine organ, with several bone proteins, known as osteokines, implicated in glucose metabolism through their effects on the liver, skeletal muscle, and adipose tissue. Research efforts mostly focused on osteocalcin (OC) as a leading example. This review will provide an overview on this role of bone by discussing bone turnover markers (BTMs), the receptor activator of nuclear factor kB ligand (RANKL), osteoprotegerin (OPG), sclerostin (SCL) and lipocalin 2 (LCN2), with a focus on OC. Since 2007, some, but not all, research using mostly OC genetically modified animal models suggested undercarboxylated (uc) OC acts as a hormone involved in energy metabolism. Most data generated from in vivo, ex vivo and in vitro models, indicate that exogenous ucOC administration improves whole-body and skeletal muscle glucose metabolism. Although data in humans are generally supportive, findings are often discordant likely due to methodological differences and observational nature of that research. Overall, evidence supports the concept that bone-derived factors are involved in energy metabolism, some having beneficial effects (ucOC, OPG) others negative (RANKL, SCL), with the role of some (LCN2, other BTMs) remaining unclear. Whether the effect of osteokines on glucose regulation is clinically significant and of therapeutic value for people with insulin resistance and T2D remains to be confirmed.
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Affiliation(s)
- Cassandra Smith
- Nutrition & Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, Western Australia, Australia; Medical School, The University of Western Australia, Perth, Western Australia, Australia; Institute for Health and Sport (IHES), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), Victoria University and Western Health, St Albans, VIC, Australia
| | - Xuzhu Lin
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Lewan Parker
- Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, VIC, Australia
| | - Bu B Yeap
- Medical School, The University of Western Australia, Perth, Western Australia, Australia; Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, Australia
| | - Alan Hayes
- Institute for Health and Sport (IHES), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), Victoria University and Western Health, St Albans, VIC, Australia; Department of Medicine - Western Health, The University of Melbourne, Footscray, VIC, Australia
| | - Itamar Levinger
- Institute for Health and Sport (IHES), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), Victoria University and Western Health, St Albans, VIC, Australia; Department of Medicine - Western Health, The University of Melbourne, Footscray, VIC, Australia.
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Tong M, Li Y, Rong K, Sun Q, Dai J, Huang Y. Structural equation model analysis of the effect of visceral fat on osteoporosis. J Orthop Surg Res 2024; 19:408. [PMID: 39014367 PMCID: PMC11253341 DOI: 10.1186/s13018-024-04888-5] [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: 05/09/2024] [Accepted: 06/29/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND Osteoporosis is a considerable public health challenge in Moyu County, Xinjiang. Here, we evaluated the influencing factors of osteoporosis in this region. METHODS We recruited 7,761 participants and randomized them into normal and osteoporotic populations based on T-score. The effects of general conditions, body composition, calcium sources and exercise, respiratory exposure, and daily diet on osteoporosis were analyzed. Furthermore, a structural equation model was constructed to uncover the direct and indirect influencing factors of osteoporosis. RESULTS Among the participants, 1,803 (23.23%) had normal bone mass while 1,496 (19.28%) had osteoporosis. The univariate analysis showed significant differences in the general conditions, body composition, calcium sources and exercise, respiratory exposure, and daily diet. Stratification based on age (45 years) and body mass index (BMI) (18.5 kg/m2) showed variations in the body composition between the two groups; however, the visceral fat differed significantly. Logistic regression analysis affirmed the association of visceral fat index as it was included in all equations, except for age and female menopause. The structural equation exhibited that the general conditions, body composition, and, calcium sources, and exercise were direct factors of osteoporosis, while respiratory exposure and daily diet were indirect factors. The standardized path coefficient was highest in general conditions, followed by body composition, and lastly, calcium sources and exercise. CONCLUSION Obesity, besides age and female menopause, is also an influencing factor of osteoporosis. The visceral fat index plays a vital role in osteoporosis. Our findings may provide experimental evidence for early prevention and treatment of osteoporosis.
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Affiliation(s)
- Min Tong
- The Second Spine Department, Traditional Chinese Medicine Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830000, China
| | - Yuanyuan Li
- School of Public Health, Xinjiang Medical University, Urumqi, 830011, China
| | - Kai Rong
- The Fourth Orthopedic Department, Traditional Chinese Medicine Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, China
| | - Qi Sun
- Medical Research Design and Data Analysis Center, Traditional Chinese Medicine Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, China
| | - Jianghong Dai
- School of Public Health, Xinjiang Medical University, Urumqi, 830011, China
| | - Yifei Huang
- The Second Spine Department, Traditional Chinese Medicine Affiliated Hospital of Xinjiang Medical University, No. 116 Huanghe Road, Urumqi, 830000, China.
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Chen SY, Liao J, Huang PX, Wu KF, Deng LM. Bibliometric and visualized analysis of type 2 diabetic osteoporosis from 2013 to 2022. Arch Osteoporos 2024; 19:30. [PMID: 38647606 DOI: 10.1007/s11657-024-01386-3] [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: 08/10/2023] [Accepted: 04/09/2024] [Indexed: 04/25/2024]
Abstract
Type 2 diabetic osteoporosis (T2DOP) has received increasing attention from researchers. In this study, a total of 453 publications related to T2DOP from 2013 to 2022 were analyzed using bibliometric and visual analysis to identify the research trends and research hotspots in the field of T2DOP. PURPOSE The objective of this study was to conduct a comprehensive bibliometric analysis of T2DOP-related publications from 2013 to 2022 to determine global research trends in T2DOP in terms of number of publications, countries/regions, institutions, authors, journals, funding agencies, and keywords. METHODS All data were collected from the Web of Science Core Collection (WoSCC). All original research publications regarding T2DOP from 2013 to 2022 were retrieved. VOSviewer and Microsoft Office Excel were used to conduct the bibliometric and visual analysis. RESULTS From 2013 to 2022, 515 relevant publications were published, with a peak in 2022 in the annual number of publications. The countries leading the research were USA and China. Sugimoto was the most influential authors. Capital Medical University and Nanjing Medical University were the most prolific institutions. Osteoporosis International was the most productive journal concerning T2DOP research. National Natural Science Foundation of China was the primary funding source for this research area. "Bone-mineral density", "fracture risk", and "postmenopausal women" were the most high-frequency keywords over the past 10 years. CONCLUSION This was the first bibliometric study of diabetes mellitus and osteoporosis to exclusively examine type 2 diabetes mellitus. Our findings would provide guidance to understand the research frontiers and hot directions in the near future.
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Affiliation(s)
- Si-Yu Chen
- Marine Biomedical Research Institution, Guangdong Medical University, Zhanjiang, 524023, People's Republic of China
- Marine Biomedical Research Institution of Guangdong Zhanjiang, Zhanjiang, 524023, People's Republic of China
| | - Jing Liao
- The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524023, People's Republic of China
| | - Pei-Xin Huang
- Marine Biomedical Research Institution, Guangdong Medical University, Zhanjiang, 524023, People's Republic of China
- Marine Biomedical Research Institution of Guangdong Zhanjiang, Zhanjiang, 524023, People's Republic of China
| | - Ke-Feng Wu
- Marine Biomedical Research Institution, Guangdong Medical University, Zhanjiang, 524023, People's Republic of China.
- Marine Biomedical Research Institution of Guangdong Zhanjiang, Zhanjiang, 524023, People's Republic of China.
- GuangDong Engineering Technology Research Center for the Development and Utilization of Mangrove Wetland Medicinal Resources, Guangdong Medical University, Zhanjiang, 524023, People's Republic of China.
| | - Lu-Ming Deng
- Marine Biomedical Research Institution, Guangdong Medical University, Zhanjiang, 524023, People's Republic of China.
- Marine Biomedical Research Institution of Guangdong Zhanjiang, Zhanjiang, 524023, People's Republic of China.
- GuangDong Engineering Technology Research Center for the Development and Utilization of Mangrove Wetland Medicinal Resources, Guangdong Medical University, Zhanjiang, 524023, People's Republic of China.
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Martiniakova M, Biro R, Kovacova V, Babikova M, Zemanova N, Mondockova V, Omelka R. Current knowledge of bone-derived factor osteocalcin: its role in the management and treatment of diabetes mellitus, osteoporosis, osteopetrosis and inflammatory joint diseases. J Mol Med (Berl) 2024; 102:435-452. [PMID: 38363329 PMCID: PMC10963459 DOI: 10.1007/s00109-024-02418-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/21/2023] [Accepted: 01/10/2024] [Indexed: 02/17/2024]
Abstract
Osteocalcin (OC) is the most abundant non-collagenous and osteoblast-secreted protein in bone. It consists of two forms such as carboxylated OC (cOC) and undercarboxylated OC (ucOC). While cOC promotes bone mineralization and increases bone strength, ucOC is regarded an endocrinologically active form that may have several functions in multiple end organs and tissues. Total OC (tOC) includes both of these forms (cOC and ucOC) and is considered a marker of bone turnover in clinical settings. Most of the data on OC is limited to preclinical studies and therefore may not accurately reflect the situation in clinical conditions. For the stated reason, the aim of this review was not only to summarize current knowledge of all forms of OC and characterize its role in diabetes mellitus, osteoporosis, osteopetrosis, inflammatory joint diseases, but also to provide new interpretations of its involvement in the management and treatment of aforementioned diseases. In this context, special emphasis was placed on available clinical trials. Significantly lower levels of tOC and ucOC could be associated with the risk of type 2 diabetes mellitus. On the contrary, tOC level does not seem to be a good indicator of high bone turnover status in postmenopausal osteoporosis, osteoarthritis and rheumatoid arthritis. The associations between several pharmacological drugs used to treat all disorders mentioned above and OC levels have also been provided. From this perspective, OC may serve as a medium through which certain medications can influence glucose metabolism, body weight, adiponectin secretion, and synovial inflammation.
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Affiliation(s)
- Monika Martiniakova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Roman Biro
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Veronika Kovacova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Martina Babikova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Nina Zemanova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Vladimira Mondockova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Radoslav Omelka
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia.
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Wang B, Shi C, Zhu Z. The association between type 2 diabetes mellitus/prediabetes status and femoral neck bone mineral density in old adults. J Orthop Surg (Hong Kong) 2024; 32:10225536241233472. [PMID: 38366620 DOI: 10.1177/10225536241233472] [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] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND The prevalence of both type 2 diabetes mellitus (T2DM) and osteoporosis has been increasing among older individuals, with these two health conditions often coexisting. Our aim in this study was to evaluate the association between T2DM status and bone mineral density (BMD) of the femoral neck among older adults in the United States. METHODS This was a retrospective analysis of the data from 5695 adults, 60-80 years of age. The data were obtained from the National Health and Nutrition Examination Survey, for the following years: 2005-2006, 2007-2008, 2009-2010, 2013-2014, and 2017-2018. Weighted multivariable regression analyses, with subgroup analyses as appropriate, were performed to identify an association between T2DM/prediabetes status and femoral BMD and mediating factors. RESULTS There was a significant positive association between T2DM/prediabetes status and femoral neck BMD among older women, but not men, after adjusting for body mass index (BMI). On subgroup analysis, stratified by BMI, the significant positive association was retained for T2DM women with a BMI of 25-29.9 kg/m2 (β, 0.030; 95% CI, 0.007-0.052) or ≥30 kg/m2 (β, 0.029; 95% CI, 0.007-0.05), and for prediabetes women with a BMI of 25-29.9 kg/m2 (β, 0.016; 95% CI, 0.001-0.030). CONCLUSIONS The association between a positive T2DM/prediabetes status and femoral neck BMD differed by sex among older individuals, with the association being further modulated by BMI. For women with a BMI of 25-29.9 kg/m2 or ≥30 kg/m2, T2DM was associated with a significantly higher femoral neck BMD, compared to the non-diabetes group.
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Affiliation(s)
- Bo Wang
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, China
| | - Chenhao Shi
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhongxin Zhu
- Department of Osteoporosis Care and Control, The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, China
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Prasad TN, Arjunan D, Pal R, Bhadada SK. Diabetes and Osteoporosis. Indian J Orthop 2023; 57:209-217. [PMID: 38107797 PMCID: PMC10721588 DOI: 10.1007/s43465-023-01049-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 11/07/2023] [Indexed: 12/19/2023]
Abstract
Bone fragility is an emerging complication of diabetes. People with diabetes are at a significantly higher risk of fractures compared to the general population. Bone fragility occurs in diabetes as a result of complex and poorly understood mechanisms occurring at the cellular level contributed by vascular, inflammatory and mechanical derangements. Bone mineral density (BMD) as assessed by DEXA is low in type 1 diabetes. Type 2 diabetes has a high risk of fracture despite a normal to raised BMD. DEXA thus underestimates the fracture risk in diabetes. Data are scare regarding the efficacy of the available therapies in this low bone turnover state.
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Affiliation(s)
- Trupti Nagendra Prasad
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Durairaj Arjunan
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Rimesh Pal
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Sanjay Kumar Bhadada
- Department of Endocrinology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Lai B, Jiang H, Gao Y, Zhou X. Identification of ROCK1 as a novel biomarker for postmenopausal osteoporosis and pan-cancer analysis. Aging (Albany NY) 2023; 15:8873-8907. [PMID: 37683138 PMCID: PMC10522383 DOI: 10.18632/aging.205004] [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: 04/21/2023] [Accepted: 08/20/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Postmenopausal osteoporosis (PMOP) is a prevalent bone disorder with significant global impact. The elevated risk of osteoporotic fracture in elderly women poses a substantial burden on individuals and society. Unfortunately, the current lack of dependable diagnostic markers and precise therapeutic targets for PMOP remains a major challenge. METHODS PMOP-related datasets GSE7429, GSE56814, GSE56815, and GSE147287, were downloaded from the GEO database. The DEGs were identified by "limma" packages. WGCNA and Machine Learning were used to choose key module genes highly related to PMOP. GSEA, DO, GO, and KEGG enrichment analysis was performed on all DEGs and the selected key hub genes. The PPI network was constructed through the GeneMANIA database. ROC curves and AUC values validated the diagnostic values of the hub genes in both training and validation datasets. xCell immune infiltration and single-cell analysis identified the hub genes' function on immune reaction in PMOP. Pan-cancer analysis revealed the role of the hub genes in cancers. RESULTS A total of 1278 DEGs were identified between PMOP patients and the healthy controls. The purple module and cyan module were selected as the key modules and 112 common genes were selected after combining the DEGs and module genes. Five Machine Learning algorithms screened three hub genes (KCNJ2, HIPK1, and ROCK1), and a PPI network was constructed for the hub genes. ROC curves validate the diagnostic values of ROCK1 in both the training (AUC = 0.73) and validation datasets of PMOP (AUC = 0.81). GSEA was performed for the low-ROCK1 patients, and the top enriched field included protein binding and immune reaction. DCs and NKT cells were highly expressed in PMOP. Pan-cancer analysis showed a correlation between low ROCK1 expression and SKCM as well as renal tumors (KIRP, KICH, and KIRC). CONCLUSIONS ROCK1 was significantly associated with the pathogenesis and immune infiltration of PMOP, and influenced cancer development, progression, and prognosis, which provided a potential therapy target for PMOP and tumors. However, further laboratory and clinical evidence is required before the clinical application of ROCK1 as a therapeutic target.
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Affiliation(s)
- Bowen Lai
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Heng Jiang
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Yuan Gao
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Xuhui Zhou
- Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai, China
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Wang W, Chen ZY, Lv FY, Tu M, Guo XL. Apolipoprotein A1 is associated with osteocalcin and bone mineral density rather than high-density lipoprotein cholesterol in Chinese postmenopausal women with type 2 diabetes mellitus. Front Med (Lausanne) 2023; 10:1182866. [PMID: 37396919 PMCID: PMC10308019 DOI: 10.3389/fmed.2023.1182866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/30/2023] [Indexed: 07/04/2023] Open
Abstract
Objective Disturbances in high-density lipoprotein cholesterol (HDL-c) metabolic pathways can affect bone metabolism, which may rely on the particle function of apolipoprotein rather than HDL-c levels. This study aimed to evaluate the correlation of serum HDL-c and apolipoprotein A1 (APOA1) with bone metabolism in Chinese postmenopausal women with type 2 diabetes mellitus (T2DM). Method A total of 1,053 participants with complete data were enrolled and separated into three groups based on the HDL-c and APOA1 tertiles. The trained reviewer collected demographic and anthropometric information. Bone turnover markers (BTMs) were determined by standard methods. Bone mineral density (BMD) was measured by dual-energy x-ray absorptiometry. Results Overall, the prevalence of osteoporosis was 29.7%. Groups with higher APOA1 have a remarkably more elevated level of osteocalcin (OC), L1-L4 BMD, and T-score across the APOA1 tertiles. APOA1 presented a positive correlation with OC (r = 0.194, p < 0.001), L1-L4 BMD (r = 0.165, p < 0.001), and T-score (r = 0.153, p < 0.001) rather than HDL-c. Meanwhile, APOA1 remained independently associated with OC (β = 0.126, p < 0.001), L1-L4 BMD (β = 0.181, p < 0.001), and T-score (β = 0.180, p < 0.001) after adjustment for confounding factors. APOA1 is also shown to be independently correlated with osteoporosis after adjustment for confounding factors, and the OR (95%CI) was 0.851 (0.784-0.924). In contrast, there was no significant association between HDL-c and osteoporosis. Furthermore, APOA1 seemed to have the largest areas under the curve (AUC) for osteoporosis. The AUC (95% CI) of APOA1 identifying osteoporosis was 0.615 (0.577-0.652). The optimal cut-off value of APOA1 was 0.89 g/L (sensitivity: 56.5%, specificity: 67.9%). Conclusion APOA1 is independently associated with OC, L1-L4 BMD, and osteoporosis rather than HDL-c in Chinese postmenopausal women with T2DM.
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Chen PY, Lee YH, Chiang CH, Chang HH, Lu CW, Huang KC. Sex Differences and Positive Dose-Response Relationships between Serum Osteocalcin Levels and Low Muscle Strength. Gerontology 2023; 69:1056-1064. [PMID: 37276853 DOI: 10.1159/000531371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 05/30/2023] [Indexed: 06/07/2023] Open
Abstract
INTRODUCTION Impaired handgrip strength is an indication for sarcopenia and frailty screening, and is associated with increased osteoporotic risks and all-cause mortality. Osteocalcin, secreted by osteoblasts, is a versatile factor that participates in bone turnover and muscle adaptation. The role of osteocalcin in muscle strength has mainly been discussed in animal models and requires more human data. The study aimed to investigate the association between the serum osteocalcin level and handgrip strength in middle-aged individuals and older adults with diabetes. METHODS Adult participants (aged 40 and above, N = 237) with diabetes were enrolled in a medical center in northern Taiwan. Subjects were divided into normal, low muscle mass without dynapenia, dynapenia without low muscle mass, and groups of low muscle mass with dynapenia according to their handgrip strength and muscle mass measurements. Physical performance, including handgrip strength, repeated sit-to-stand tests, walking speed, and short physical performance batteries, was documented. Body composition was measured by bioelectrical impedance analysis. RESULTS The median serum osteocalcin level was highest in the dynapenic group without low muscle mass (median [Q1, Q3], 14.1 [11.2, 16.3] ng/mL). Multivariate logistic regression showed that a higher serum osteocalcin level was associated with worse handgrip strength (OR: 3.89, 95% CI: 1.66-9.10) after adjusting for body mass index (adiposity), skeletal muscle mass index (muscle), and medication with dipeptidyl peptidase-4 inhibitor. Further sex stratification revealed a more significant association between serum osteocalcin level and impaired handgrip strength in women but not in men. The female groups showed increases in the risk of impaired handgrip strength: 4.84-fold in the osteocalcin T2 group (11.4 ≤ osteocalcin <15.0 ng/mL) and 4.54-fold in the osteocalcin T3 group (osteocalcin ≥15.0 ng/mL). Moreover, after adjusting for various confounders, 8.41-fold and 8.03-fold increases in the risk of impaired handgrip strength were observed in the osteocalcin T2 group (11.4≤ osteocalcin <15.0 ng/mL) and osteocalcin T3 group (osteocalcin ≥14.5 ng/mL), respectively. CONCLUSION Higher serum osteocalcin is associated with increased risks of impaired handgrip strength and impaired physical performance. Dose-dependent associations were found especially in postmenopausal women but not in men.
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Affiliation(s)
- Pei-Yun Chen
- Department of Family Medicine, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Hsuan Lee
- Department of Family Medicine, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chien-Hsieh Chiang
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hao-Hsiang Chang
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Wen Lu
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Kuo-Chin Huang
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Family Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
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Wang P, Zhang Y, Shan R, Wu J, Man S, Deng Y, Lv J, Wang X, Yin J, Ning Y, Wang B, Li L. Association between trajectories of fasting plasma glucose and risk of osteoporosis in non-diabetic and diabetic populations. Front Public Health 2022; 10:960928. [PMID: 36424968 PMCID: PMC9679646 DOI: 10.3389/fpubh.2022.960928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/12/2022] [Indexed: 11/11/2022] Open
Abstract
Introduction Previous studies based on a single measure of fasting plasma glucose (FPG) showed an inconsistent conclusion about the association between FPG and osteoporosis risk. Not accounting for time-varying and cumulative average of FPG over time could bias the true relation between FPG and osteoporosis. Our study aims to investigate the association between the trajectories of FPG and osteoporosis risk for non-diabetic and diabetic populations. Methods A total of 18,313 participants who attended physical examinations during 2008-2018 were included. They were free of osteoporosis at their first physical examination and followed until their last physical examination before December 31, 2018. We recorded their incidence of osteoporosis and at least three FPG values during follow-up. Their longitudinal FPG trajectories were identified by the latent class growth analysis model based on the changes in FPG. Multivariable logistic regression models were used to analyze the association between the trajectories of FPG and osteoporosis diagnosed in the follow-up physical examination in both non-diabetics and diabetics. Results There were 752 incident osteoporosis among 16,966 non-diabetic participants, and 57 incident osteoporosis among 1,347 diabetic participants. Among non-diabetics, the elevated-increasing FPG trajectory was negatively associated with osteoporosis risk in women (odds ratio (OR), 0.62; 95% confidence interval (CI), 0.43-0.88). Premenopausal women with elevated-increasing FPG trajectory had lower osteoporosis risk than those women with normal-stable FPG trajectory (OR, 0.41; 95% CI, 0.20-0.88), while this association was insignificant in postmenopausal women. Among diabetics, those whose longitudinal FPG is kept at a very high level had the highest risk of osteoporosis (OR, 3.09; 95% CI, 1.16-8.22), whereas those whose FPG starts with the high level and keeps on increasing did not exhibit a significantly increased risk (OR, 1.75; 95% CI, 0.81-3.76) compared with those who keep stable moderate-high level of FPG, except in men (OR, 2.49; 95% CI, 1.02-6.12). Conclusion Distinct trajectories of FPG are associated with differential risk of osteoporosis in non-diabetic and diabetic populations. Controlling a proper FPG level in different populations is necessary for osteoporosis prevention.
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Affiliation(s)
- Ping Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China,Department of Statistics and Information, Beijing Center for Disease Prevention and Control, Beijing, China
| | - Yuanfeng Zhang
- Department of Medical Innovation, China Science and Technology Development Center for Chinese Medicine, Beijing, China
| | - Ruiqi Shan
- Department of Evidence Based Medicine, Meinian Institute of Health, Beijing, China,Peking University Health Science Center, Meinian Public Health Institute, Beijing, China
| | - Jing Wu
- Department of Evidence Based Medicine, Meinian Institute of Health, Beijing, China,Peking University Health Science Center, Meinian Public Health Institute, Beijing, China
| | - Sailimai Man
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China,Department of Evidence Based Medicine, Meinian Institute of Health, Beijing, China,Peking University Health Science Center, Meinian Public Health Institute, Beijing, China
| | - Yuhan Deng
- Department of Social Medicine and Health Education, School of Public Health, Peking University, Beijing, China
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China,Peking University Health Science Center, Meinian Public Health Institute, Beijing, China,Department of Noncommunicable Diseases, Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing, China
| | - Xiaona Wang
- Beijing MJ Health Screening Center Co., Ltd., Beijing, China
| | - Jianchun Yin
- Beijing MJ Health Screening Center Co., Ltd., Beijing, China
| | - Yi Ning
- Department of Evidence Based Medicine, Meinian Institute of Health, Beijing, China,School of Public Health, Hainan Medical University, Hainan, China,Yi Ning
| | - Bo Wang
- Department of Evidence Based Medicine, Meinian Institute of Health, Beijing, China,Peking University Health Science Center, Meinian Public Health Institute, Beijing, China,Bo Wang
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China,Peking University Health Science Center, Meinian Public Health Institute, Beijing, China,Department of Noncommunicable Diseases, Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing, China,*Correspondence: Liming Li
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11
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Sun X, Xiao W, Li Z, Zhou S, Dong M, Huang C, Ma Y, Gou B. Does vitamin D supplementation improve bone health, body composition and physical performance beyond endurance exercise in patients with type 2 diabetes: A secondary analysis of randomized controlled trial. Front Physiol 2022; 13:1003572. [PMID: 36246136 PMCID: PMC9554259 DOI: 10.3389/fphys.2022.1003572] [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: 07/26/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
This study aimed to assess the effects of a 12-week vitamin D and endurance exercise intervention on bone health, body composition and physical performance among patients with type 2 diabetes. Totally, 61 patients were randomly assigned to vitamin D (VDG), exercise (EG), vitamin D and exercise intervention (VEG), and control (CG) groups. Bone health (bone mineral density, BMD; bone mineral content, BMC), body composition and physical performance were measured before and after the intervention. Dual energy X-ray absorptiometry was used to assess bone health and body composition. There were no additive effects of vitamin D beyond exercise were observed. Vitamin D supplementation had significant effects on maintaining bone health compared with their counterpart Total (BMC, EG + CG: 2,719.9 ± 70.0 vs. 2,670.1 ± 65.6; VDG + VEG: 2,610.9 ± 88.2 vs. 2,605.3 ± 84.8; trunk BMC, 870.2 ± 26.8 vs. 836.3 ± 23.7; 824.8 ± 29.5 vs. 822.1 ± 27.8; spine BMD, 1.15 ± 0.03 vs. 1.11 ± 0.02; 1.09 ± 0.03 vs. 1.09 ± 0.02) were observed. Exercise had a main effect on the reduction of total and trunk BF%. Patients in EG had a decreased BMC, while it was alleviated in VEG after intervention. Although no additive effect of vitamin D supplementation beyond exercise training, the supplementation had a potential effect on the prevention of bone loss induced by exercise only.
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Affiliation(s)
- Xiaomin Sun
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Wenjuan Xiao
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Zhongying Li
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Sirui Zhou
- Global Health Institute, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Mengyue Dong
- Rehabilitation Center, Beijing Rehabilitation Hospital of Capital Medical University, Beijing, China
- Department of Health Science, Xi’an Physical Education University, Xi’an, China
| | - Cong Huang
- Department of Sports and Exercise Science, Zhejiang University, Hangzhou, China
| | - Yan Ma
- Department of Health Science, Xi’an Physical Education University, Xi’an, China
| | - Bo Gou
- Department of Health Science, Xi’an Physical Education University, Xi’an, China
- *Correspondence: Bo Gou,
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12
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Lu YH, Gu L, Jiang Y. Positive association of fasting plasma glucose with bone mineral density in non-diabetic elderly females. J Bone Miner Metab 2022; 40:755-762. [PMID: 35760873 DOI: 10.1007/s00774-022-01341-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/28/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Previous studies involving diabetics have shown different associations between fasting plasma glucose (FPG) and bone mineral density (BMD). The different effects of FPG on BMD are due to varying effects of antidiabetic drugs, glycemic control and diabetic complications in the diabetic patients. It is necessary to identify the association in subjects without diabetes. MATERIALS AND METHODS A total of 2367 females over 65 were included in this cross-sectional study. Subjects were grouped by FPG quartile. BMD and the prevalence of osteoporosis were compared among different FPG quartiles. Multiple logistic regression was used to analyze the independent contribution of FPG to osteoporosis. RESULTS Subjects in lower FPG quartile had lower BMD (P < 0.05). Subjects with osteoporosis had a lower FPG than the subjects of osteopenia, and both were lower than subjects with normal bone mass (P < 0.001 for all). Compared with the lowest FPG quartile, subjects in the 3rd and the 4th quartiles have a lower risk of osteoporosis in the lumbar spine (OR 0.77, 95% CI 0.59-0.98; OR 0.76, 95% CI 0.56-0.99, respectively), the total hip (OR 0.72, 95% CI 0.56-0.96; OR 0.75, 95% CI 0.53-0.99, respectively), and the femoral neck (OR 0.73, 95% CI 0.50-0.97; OR 0.71, 95% CI 0.54-0.92, respectively) after adjustment for age, BMI, education, physical activity and menopausal age. CONCLUSION FPG was positively associated with BMD in non-diabetic elderly females. Low FPG may increase the risk of osteoporosis in the non-diabetic elderly females in China.
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Affiliation(s)
- Yi-Hua Lu
- Department of Epidemiology and Health Statistics, School of Public Health, Nantong University, Nantong, Jiangsu, 226019, People's Republic of China
| | - Liang Gu
- Department of Cardio Thoracic, Nantong University Affiliated Nantong Rich Hospital, Nantong, Jiangsu, 226010, People's Republic of China
| | - Yun Jiang
- Department of Cardio Thoracic, Nantong University Affiliated Nantong Rich Hospital, Nantong, Jiangsu, 226010, People's Republic of China.
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13
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Chen YC, Hsu BG, Lin WC, Lee MC. Inverse association of serum osteocalcin and bone mineral density in renal transplant recipients. Tzu Chi Med J 2022. [DOI: 10.4103/tcmj.tcmj_55_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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14
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Xing Y, Liu J, Liu H, Ma H. Relationship of Bone Turnover Markers with Serum Uric Acid-to-Creatinine Ratio in Men and Postmenopausal Women with Type 2 Diabetes. Diabetes Metab Syndr Obes 2022; 15:3205-3217. [PMID: 36268198 PMCID: PMC9578772 DOI: 10.2147/dmso.s384694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Accumulating evidence has shown that serum uric acid (UA) is associated with some chronic diseases owing to its antioxidant capacity; however, previous research has discrepant results regarding the relationship between UA and bone health. UA normalized by renal function can reflect endogenous UA levels more precisely than SUA levels. This study assessed the relationship between serum UA-to-creatinine (SUA/Cr) ratio and bone turnover markers (BTMs) in men and postmenopausal women with type 2 diabetes mellitus (T2DM). PATIENTS AND METHODS Overall, 1691 patients (1028 males and 663 postmenopausal females) with T2DM admitted to Hebei General Hospital between January and December 2020 were selected and divided into two groups according to their SUA/Cr ratio. One-way analysis of variance was used to compare groups. The relationship between the SUA/Cr ratio and BTMs (including osteocalcin [OC], procollagen I N-terminal peptide [PINP], and β-isomerized type I collagen C-telopeptide breakdown products [β-CTX]) was analyzed using multiple linear regression. Furthermore, subgroup analyses were performed to explore the differences between men and women in the relationship between SUA/Cr and BTMs. Mediation analysis was used to explore whether insulin resistance mediated the association between SUA/Cr and BTMs. RESULTS β-CTX and PNIP levels of patients with T2DM in the low SUA/Cr group were significantly higher than those in the high SUA/Cr group, and the difference between the two groups was statistically significant (P < 0.05). Correlation analysis showed that SUA/Cr was negatively correlated with β-CTX and PNIP. After adjusting for confounding factors, multivariate linear regression analysis revealed that the SUA/Cr level was negatively correlated with PINP and β-CTX in male patients and postmenopausal women with T2DM. Stronger correlations were found in patients with 25(OH)D3 < 20ng/mL, course ≥ 5 years, HbA1c > 7%, or BMI < 28 kg/m2. CONCLUSION SUA/Cr ratio was an independent influencing factor of BTMs in patients with T2DM.
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Affiliation(s)
- Yuling Xing
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, People’s Republic of China
- Graduate School of Hebei Medical University, Shijiazhuang, People’s Republic of China
| | - Jing Liu
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, People’s Republic of China
| | - Huanxin Liu
- Health Examination Center, Hebei General Hospital, Shijiazhuang, People’s Republic of China
| | - Huijuan Ma
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, People’s Republic of China
- Hebei Key Laboratory of Metabolic Diseases, Hebei General Hospital, Shijiazhuang, People’s Republic of China
- Department of Internal Medicine, Hebei Medical University, Shijiazhuang, People’s Republic of China
- Correspondence: Huijuan Ma, Department of Endocrinology, Hebei General Hospital, Shijiazhuang, People’s Republic of China, Tel +86 18032838686, Email
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15
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Tice MJ, Bailey S, Sroga GE, Gallagher EJ, Vashishth D. Non‐Obese
MKR
Mouse Model of Type 2 Diabetes Reveals Skeletal Alterations in Mineralization and Material Properties. JBMR Plus 2021; 6:e10583. [PMID: 35229063 PMCID: PMC8861985 DOI: 10.1002/jbm4.10583] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/15/2021] [Accepted: 11/14/2021] [Indexed: 12/25/2022] Open
Abstract
Obesity is a common comorbidity of type 2 diabetes (T2D). Therefore, increased risk of fragility fractures in T2D is often confounded by the effects of obesity. This study was conducted to elucidate the mechanistic basis by which T2D alone leads to skeletal fragility. We hypothesized that obesity independent T2D would deteriorate bone's material quality by accumulating defects in the mineral matrix and undesired modifications in its organic matrix associated with increased oxidative stress and hyperglycemia. To test this hypothesis, we used 15‐week‐old male non‐obese mice with engineered muscle creatine kinase promoter/human dominant negative insulin growth factor 1 (IGF‐I) receptor (MKR) and FVB/N wild‐type (WT) controls (n = 12/group). MKR mice exhibit reduced insulin production and loss of glycemic control leading to diabetic hyperglycemia, verified by fasting blood glucose measurements (>250 mg/dL), without an increase in body weight. MKR mice showed a significant decrease in femoral radial geometry (cortical area, moment of inertia, cortical thickness, endosteal diameter, and periosteal diameter). Bone mineral density (BMD), as assessed by micro–computed tomography (μCT), remained unchanged; however, the quality of bone mineral was altered. In contrast to controls, MKR mice had significantly increased hydroxyapatite crystal thickness, measured by small‐angle X‐ray scattering, and elongated c‐axis length of the crystals evaluated by confocal Raman spectroscopy. There was an increase in changes in the organic matrix of MKR mice, associated with enhanced glycoxidation (carboxymethyl‐lysine [CML] and pentosidine) and overall glycation (fluorescent advanced glycation end products), both of which were associated with various measures of bone fragility. Moreover, increased CML formation positively correlated with elongated mineral crystal length, supporting the role of this negatively charged side chain to attract calcium ions, promote growth of hydroxyapatite, and build a physical link between mineral and collagen. Collectively, our results show, for the first time, changes in bone matrix in a non‐obese T2D model in which skeletal fragility is attributable to alterations in the mineral quality and undesired organic matrix modifications. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Matthew J.L. Tice
- Department of Biomedical Engineering Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute New York NY USA
| | - Stacyann Bailey
- Department of Biomedical Engineering Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute New York NY USA
| | - Grażyna E. Sroga
- Department of Biomedical Engineering Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute New York NY USA
| | - Emily J. Gallagher
- Division of Endocrinology, Diabetes and Bone Diseases, Department of Medicine Icahn School of Medicine at Mount Sinai New York NY USA
| | - Deepak Vashishth
- Department of Biomedical Engineering Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute New York NY USA
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16
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Zhang M, Sheng C, You H, Cai M, Gao J, Cheng X, Sheng H, Qu S. Comparing the bone mineral density among male patients with latent autoimmune diabetes and classical type 1 and type 2 diabetes, and exploring risk factors for osteoporosis. J Endocrinol Invest 2021; 44:1659-1665. [PMID: 33387352 DOI: 10.1007/s40618-020-01472-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/21/2020] [Indexed: 12/21/2022]
Abstract
AIMS This study aimed to compare the bone mineral densities (BMDs) among male patients with latent autoimmune diabetes in adults (LADA), classical type 1 diabetes (T1DM), and type 2 diabetes (T2DM), and to examine the risk factors for developing low BMD in these patients. PATIENTS AND METHODS Between January 2017 and October 2020, a total of 57, 67, and 223 male patients with LADA, classical T1DM, and T2DM, respectively, were recruited from the endocrinology department of Shanghai Tenth People's Hospital. Hormonal markers of bone metabolism, lipid profiles, uric acid, glycosylated hemoglobin A1c (HbA1c), and beta-cell function were measured using blood samples. BMD was measured at the lumbar spine, femoral neck, and right hip by dual-energy X-ray absorptiometry. RESULTS The mean BMD values from all three skeletal sites in male patients with LADA were comparable to those with classical T1DM but were much lower than those with T2DM. After adjusting for confounding factors, multiple linear regression analysis demonstrated that in all male patients with diabetes, body mass index (BMI), uric acid, and fasting C-peptide showed significant positive associations with BMD at all three skeletal sites; however, osteocalcin showed a negative association at all three sites. CONCLUSIONS Compared with male patients with T2DM, lower BMDs were observed in patients with LADA and T1DM. Low BMI, uric acid, C-peptide levels, and high osteocalcin levels are risk factors for developing low BMD in male patients with diabetes.
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Affiliation(s)
- M Zhang
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China.
| | - C Sheng
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - H You
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - M Cai
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - J Gao
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - X Cheng
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - H Sheng
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
| | - S Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai, 200072, China
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17
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Hu Y, Li X, Yan X, Huang G, Dai R, Zhou Z. Bone mineral density spectrum in individuals with type 1 diabetes, latent autoimmune diabetes in adults, and type 2 diabetes. Diabetes Metab Res Rev 2021; 37:e3390. [PMID: 32748546 DOI: 10.1002/dmrr.3390] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 07/15/2020] [Accepted: 07/28/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To assess bone mineral density (BMD) and associated clinical factors in patients with type 1 diabetes (T1D), latent autoimmune diabetes in adults (LADA), and type 2 diabetes (T2D) and in non-diabetic subjects. METHODS Total 108 age-, sex-, disease duration-, and postmenopausal ratio-matched patients with T1D, LADA, and T2D each and 216 age-, sex-, and postmenopausal ratio-matched non-diabetic controls. Anthropometric, biochemical, and BMD data were collected and analysed. RESULTS BMD of total hip and lumbar spine of individuals in the LADA group was lower than those in the T2D and control groups but higher than those in the T1D group. After adjusting for body mass index (BMI), a significant difference in BMD in the lumbar spine was seen between groups. After adjustment for smoking, BMI, 25-(OH) vitamin D, calcium, haemoglobin A1c, and diabetic complication scores, BMD values of patients in LADA group were not significantly different from those of patients in T1D and T2D groups. Multiple stepwise regression analysis showed that BMD was (a) positively associated with weight and C-peptide, and negatively associated with age in patients with diabetes, (b) positively associated with C-peptide in the T1D and LADA groups. The proportion of patients with osteoporosis in the T1D, LADA, T2D, and control groups was 55.6%, 45.4%, 34.3%, and 26.9%, respectively. CONCLUSIONS BMD values in T1D, LADA, and T2D were in an increasing order of mention. Patients with autoimmune diabetes were more susceptible to osteoporosis. A lower C-peptide level may be responsible for decreased BMD in individuals with autoimmune diabetes.
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Affiliation(s)
- Yuhang Hu
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, Changsha, China
| | - Xia Li
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, Changsha, China
| | - Xiang Yan
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, Changsha, China
| | - Gan Huang
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, Changsha, China
| | - Ruchun Dai
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, Changsha, China
| | - Zhiguang Zhou
- Department of Metabolism and Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, Changsha, China
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18
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Fang P, She Y, Han L, Wan S, Shang W, Zhang Z, Min W. A promising biomarker of elevated galanin level in hypothalamus for osteoporosis risk in type 2 diabetes mellitus. Mech Ageing Dev 2020; 194:111427. [PMID: 33383074 DOI: 10.1016/j.mad.2020.111427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/15/2020] [Accepted: 12/20/2020] [Indexed: 02/07/2023]
Abstract
Type 2 diabetes mellitus (T2DM) and osteoporosis are two major healthcare problems worldwide. T2DM is considered to be a risk factor for osteoporosis. Interestingly, several epidemiological studies suggest that bone abnormalities associated with diabetes may differ, at least in part, from those associated with senile or post-menopausal osteoporosis. The growing prevalence that patients with T2DM simultaneously suffer from osteoporosis, puts forward the importance to discuss the relationship between both diseases, as well as to investigate correlative agents to treat them. Emerging evidences demonstrate that neuropeptide galanin is involved in the pathogenesis of T2DM and osteoporosis. Galanin via activation of central GALR2 increases insulin sensitivity as well as bone density and mass in animal models. The disorder of galanin function plays major role in development of both diseases. Importantly, galanin signaling is indispensable for ΔFosB, an AP1 antagonist, to play the bone mass-accruing effects in the ventral hypothalamic neurons of diabetic models. This review summarizes our and other recent studies to provide a new insight into the multivariate relationship among galanin, T2DM and osteoporosis, highlighting the beneficial effect of galanin on the comorbid state of both diseases. These may help us better understanding the pathogenesis of osteoporosis and T2DM and provide useful clues for further inquiry if elevated galanin level may be taken as a biomarker for both conjoint diseases, and GALR2 agonist may be taken as a novel therapeutic strategy to treat both diseases concurrently.
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Affiliation(s)
- Penghua Fang
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; Department of Physiology, Hanlin College, Nanjing University of Chinese Medicine, Taizhou 225300, China
| | - Yuqing She
- Department of Endocrinology, Pukou Branch of Jiangsu People's Hospital, Nanjing 211808, China
| | - Long Han
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Shiwei Wan
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Wenbin Shang
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhenwen Zhang
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou 225001, China.
| | - Wen Min
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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19
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Liu C, Lv H, Niu P, Tan J, Ma Y. Association between diabetic neuropathy and osteoporosis in patients: a systematic review and meta-analysis. Arch Osteoporos 2020; 15:125. [PMID: 32779030 DOI: 10.1007/s11657-020-00804-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/31/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVES Many studies have explored the association between neuropathy and osteoporosis in patients with diabetes mellitus. However, the results still remain inconsistent and controversial. We aimed to estimate the association between diabetic neuropathy and osteoporosis. METHODS Databases, including PubMed, Embase, Web of Science, the Cochrane library, Chinese Biomedical Literature Database (CBM), and Wanfang, were screened from inception to 30 March 2020. Studies were selected and data were extracted by two independent reviewers. Study characteristics and quality sections were reviewed independently. Pooled ORs and 95% CIs were calculated using random effects model when evidence of heterogeneity was present; otherwise, fixed effects model was used. Meta-regression and subgroup analyses were performed to explore the source of heterogeneity. Sensitivity analysis and publication bias were also tested. RESULTS A total of 11 studies with 27,585 participants were included in this analysis which indicated that there was an increased odd between diabetic neuropathy and osteoporosis (overall OR 2.20, 95% CI 1.71-2.83). In the subgroup analyses and meta-regression, diabetic neuropathy has no significant difference in osteoporosis or fracture (p = 0.532). And osteoporosis also has no significant difference in type 1 or type 2 diabetic neuropathy (p = 0.668). CONCLUSIONS This meta-analysis suggests that patients with diabetic neuropathy have a significantly increased chance of developing osteoporosis, even fragility fracture. The clinicians should pay more attention to the patients with diabetic neuropathy. Further studies were still needed to explore the confounding factors among studies and to elucidate the underlying biological mechanisms.
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Affiliation(s)
- Chunhua Liu
- Department of Endocrinology, The First Hospital of Lanzhou University, 1 Donggang West Road, Lanzhou, Gansu, 730000, People's Republic of China
| | - Haihong Lv
- Department of Endocrinology, The First Hospital of Lanzhou University, 1 Donggang West Road, Lanzhou, Gansu, 730000, People's Republic of China.
| | - Peng Niu
- Department of Orthopaedics, Tongchuan Mining Central Hospital, The affiliated Shaanxi University of Chinese Medicine, 15 Chuankou Road, Tongchuan, Shaanxi, 727000, People's Republic of China
| | - Jiaojiao Tan
- Department of Endocrinology, The First Hospital of Lanzhou University, 1 Donggang West Road, Lanzhou, Gansu, 730000, People's Republic of China
| | - Yuping Ma
- Department of Endocrinology, The First Hospital of Lanzhou University, 1 Donggang West Road, Lanzhou, Gansu, 730000, People's Republic of China
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20
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Guo Y, Wang Y, Chen F, Wang J, Wang D. Assessment of Risk Factors for Fractures in Patients with Type 2 Diabetes over 60 Years Old: A Cross-Sectional Study from Northeast China. J Diabetes Res 2020; 2020:1508258. [PMID: 32083133 PMCID: PMC7007937 DOI: 10.1155/2020/1508258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/21/2019] [Accepted: 01/07/2020] [Indexed: 11/17/2022] Open
Abstract
AIMS Previous evidence has demonstrated an increased fracture risk among the population with type 2 diabetes mellitus (T2DM). This study investigated the prevalence of bone fractures in elderly subjects (with and without type 2 diabetes) and identified any fracture risk factors, especially the risk factors for common known fractures in particular diabetic populations. METHODS This cross-sectional study was conducted with community-dwelling people over 60 years old in nine communities from the city of Shenyang, which is the capital of Northeast China's Liaoning Province. A total of 3430 elderly adults (2201 females, mean ± standard deviation age 68.16 ± 6.1 years; 1229 males, 69.16 ± 6.7 years) were included. Our study measured the heel bone mineral density (BMD) and used the timed "up and go" (TUG) test and other indicators. In addition, we performed logistic regression analysis to explore the risk factors for fractures in the general population and the diabetic population and to analyze the differences. RESULTS The results revealed that a total of 201 elderly persons (5.8%), with an average age of 70.05 ± 6.54 years, suffered from a history of fragility fractures, which affected more females (74.6%) than males (p = 0.001). The prevalence of fractures in the T2DM population was 7.3%, which was much higher than the 5.2% in non-T2DM population (p = 0.001). The prevalence of fractures in the T2DM population was 7.3%, which was much higher than the 5.2% in non-T2DM population (p = 0.001). The prevalence of fractures in the T2DM population was 7.3%, which was much higher than the 5.2% in non-T2DM population (p = 0.001). The prevalence of fractures in the T2DM population was 7.3%, which was much higher than the 5.2% in non-T2DM population (T-score≤-2.5 (OR 1.750) were independent risk factors for fragility fractures in the non-T2DM population, but they were not risk factors in the T2DM population. CONCLUSIONS This study found that low BMD and slow TUG time were independent risk factors for fractures in non-T2DM patients, while no associations were found in the T2DM population. Patients with T2DM have a higher risk for fractures even when they have sufficient BMD and a short TUG time. TUG and BMD underestimated the risk for fractures in the T2DM population.
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Affiliation(s)
- Yan Guo
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Yingfang Wang
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Feng Chen
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Jiabei Wang
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Difei Wang
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
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Xu H, Wang Z, Li X, Fan M, Bao C, Yang R, Song F, Xu W, Qi X. Osteoporosis and Osteopenia Among Patients With Type 2 Diabetes Aged ≥50: Role of Sex and Clinical Characteristics. J Clin Densitom 2020; 23:29-36. [PMID: 31101413 DOI: 10.1016/j.jocd.2019.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/13/2019] [Accepted: 04/17/2019] [Indexed: 10/27/2022]
Abstract
INTRODUCTION/BACKGROUND Although some studies have explored the association of adiposity and life habits (such as smoking) with osteoporosis and osteopenia among type 2 diabetes mellitus (T2DM) patients, the association between diabetic clinical characteristics (especially hypoglycemic drug use) and osteoporosis/osteopenia remains unclear. This study aimed to investigate the relationship of clinical characteristics with osteoporosis and osteopenia among T2DM patients by sex. METHODS A total of 1222 T2DM patients aged ≥50 were included in the present study. Information on demographic, anthropometric and clinical characteristics was collected from medical records. Bone mineral density was assessed by dual-energy X-ray absorptiometry densitometer. Multiple adjusted logistic regression analyses were performed to estimate the odds ratio (OR) and 95% confidence interval (CI) of osteoporosis and osteopenia related to clinical characteristics. RESULTS Of all participants, the prevalence of osteoporosis and osteopenia was 9.2% and 41.3%, respectively, and they were higher in females (14.7% and 48.5%) than in males (2.8% and 33%). After adjustment for potential confounders, the results showed that overweight (OR = 0.59; 95% CI, 0.42-0.81) and obesity (OR = 0.35; 95% CI, 0.24-0.50) were related to decreased odds of osteoporosis and osteopenia in both male and female T2DM patients, poor glycemic control (OR = 1.63; 95% CI, 1.08-2.47) was associated with increased odds of osteoporosis and osteopenia in males, and metformin treatment (OR = 0.65; 95% CI, 0.43-0.99) was associated with decreased odds of osteoporosis and osteopenia in females. CONCLUSIONS Better glycemic management and rational choice of antidiabetic medication might be promising to prevent osteoporosis in T2DM patients. Further longitudinal studies are warranted to explore the association between antidiabetic treatment and osteoporosis.
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Affiliation(s)
- Hui Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Zhida Wang
- NHC Key Laboratory of Hormones and Development (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Xuerui Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Meijuan Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Cuiping Bao
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Rongrong Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Fei Song
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Weili Xu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China; Aging Research Center (ARC), Department Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden.
| | - Xiuying Qi
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China.
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22
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Zhao C, Liu G, Zhang Y, Xu G, Yi X, Liang J, Yang Y, Liang J, Ma C, Ye Y, Yu M, Qu X. Association between serum levels of bone turnover markers and bone mineral density in men and women with type 2 diabetes mellitus. J Clin Lab Anal 2019; 34:e23112. [PMID: 31733013 PMCID: PMC7171297 DOI: 10.1002/jcla.23112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 10/08/2019] [Accepted: 10/21/2019] [Indexed: 01/02/2023] Open
Abstract
Background In patients with type 2 diabetes mellitus (T2DM), higher risks of impaired bone metabolism are widely reported. To evaluate bone metabolism, bone mineral density (BMD) and bone turnover levels should be included. In this article, we analyzed the relationship between them in T2DM. Methods We conducted a hospital‐based cross‐sectional study enrolling 1499 patients hospitalized for T2DM between October 2009 and January 2013. Multivariate linear regression models were used to identify the relationship between bone turnover markers (BTMs) and BMD levels. A two‐sided P‐value < .05 was considered statistically significant. Results After adjusting for confounding factors, osteocalcin (OC) showed a negative relationship with total lumbar, femur neck, and total hip BMD in men and women. N‐terminal propeptides of type I collagen (P1NP) and alkaline phosphatase (ALP) showed a negative association with BMD at three sites in men and total lumbar BMD in women, whereas in the femur neck and total hip in women, the relationship was only found for P1NP with total hip. For β‐C‐terminal telopeptides of type I collagen (β‐CTX), a negative relationship was also found in all three sites for BMD in men and total lumbar BMD in women, whereas β‐CTX was not associated in the femoral neck and total hip in women. Conclusion In patients with T2DM, serum levels of OC, P1NP, β‐CTX, and ALP were negatively correlated with BMD levels in men in three sites and with total lumbar BMD in women. The relationship varied in femur neck and total hip BMD in women.
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Affiliation(s)
- Chenhe Zhao
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guangwang Liu
- Department of Orthopaedics, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, The Affiliated XuZhou Hospital of Medical College of Southeast University, Xuzhou Clinical Medical College of Nanjing University of Chinese Medicine, Xuzhou, China
| | - Yao Zhang
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Infectious Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guiping Xu
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China.,VIP Clinical Department (2), Fujian Provincial Hospital, Fuzhou, China
| | - Xilu Yi
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Endocrinology, Songjiang Central Hospital, Shanghai, China
| | - Jing Liang
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yinqiu Yang
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jun Liang
- Department of Endocrinology, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, The Affiliated XuZhou Hospital of Medical College of Southeast University, Xuzhou Clinical Medical College of Nanjing University of Chinese Medicine, Xuzhou, China
| | - Chao Ma
- Department of Orthopaedics, Xuzhou Central Hospital, Xuzhou Clinical School of Xuzhou Medical University, The Affiliated XuZhou Hospital of Medical College of Southeast University, Xuzhou Clinical Medical College of Nanjing University of Chinese Medicine, Xuzhou, China
| | - Yangli Ye
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Mingxiang Yu
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xinhua Qu
- Department of Bone and Joint Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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23
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Jing Y, Wang X, Yu J, Wang X, Zhou Y, Tao B, Sun L, Liu J, Zhao H. Associations of serum sex hormone binding globulin with bone mineral densities and higher 10-year probability of fractures in postmenopausal women with type 2 diabetes mellitus. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:457. [PMID: 31700893 DOI: 10.21037/atm.2019.08.46] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background Postmenopause and type 2 diabetes mellitus (T2DM) are associated with higher fracture risk. Sex hormones are important in maintaining woman skeleton health. The relationships of sex hormone(s) with bone mineral density (BMD) and fracture risk are still unclear in diabetic-postmenopausal women. This study aimed to investigate the relationships of sex hormones with BMDs and fracture risk in postmenopausal women with T2DM. Methods Two hundred and fourteen postmenopausal women with T2DM were included. BMDs at lumbar spine (L2-4), femoral neck (FN) and total hip (TH) were measured by dual-energy X-ray absorptiometry (DXA). The 10-year probability of fractures was accessed by modified fracture risk algorithm (FRAX) tool. Serum concentrations of sex hormones were measured. Results Sex hormone binding globulin (SHBG) was a determinant of BMDs at L2-4 (β=-0.199, P<0.05), TH (β=-0.233, P<0.05), major osteoporotic fracture (MOF) (β=0.253, P<0.001) and hip fracture (HF) (β=0.262, P<0.001). Per SD increase in SHBG caused a 2% increase in the risk of osteoporosis/osteopenia. SHBG in quartile-4 was associated with 4.21 higher risk of osteoporosis/osteopenia compared with SHBG in quartile-1. Conclusions In postmenopausal women with T2DM, higher serum SHBG tended to be associated with lower BMDs, and increased the risk of osteoporosis/osteopenia and the fracture risk.
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Affiliation(s)
- Yixuan Jing
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Xiaofeng Wang
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China.,Currently at Tong Ren Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai 200336, China
| | - Jingjia Yu
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Xiaojing Wang
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Yanman Zhou
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Bei Tao
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Lihao Sun
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Jianmin Liu
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
| | - Hongyan Zhao
- Department of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai 200025, China
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Natour NA, Morin SN, Egeland GM, Weiler HA. Forearm bone density is not elevated in Inuit women with impaired fasting glucose or type 2 diabetes mellitus. Int J Circumpolar Health 2019; 78:1601056. [PMID: 30945996 PMCID: PMC6461097 DOI: 10.1080/22423982.2019.1601056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Bone mineral density (BMD) and fracture risk are elevated in adults with impaired fasting glucose (IFG) or type 2 diabetes mellitus (T2D). This study aimed to compare bone health among Inuit women with IFG, T2D and normoglycemia. The study included Inuit women (≥40 y) with IFG (n = 57), T2D (n = 72) or normoglycemia (n = 340) from the International Polar Year Inuit Health Survey 2007-2008 in Canada. Distal one-third forearm BMD (FaBMD) was measured using a peripheral instantaneous x-ray imager. Anthropometry, fasting plasma glucose (FPG), serum adiponectin, leptin and 25-hydroxyvitamin D (25(OH)D) were measured. Traditional food intakes were surveyed. Data were analysed using mixed model ANOVA and regression models. The median age was 53 (IFG: IQR 48, 67) y and 56 (T2D: IQR 49, 63) y. Compared to normoglycemic women, FaBMD and T-scores were significantly lower in women with T2D, but not with IFG. Frequency of marine mammal intakes (ß = 0.145; 95%CI: 0.018, 0.053, p = 0.0001) positively related to FaBMD. The odds ratio of having a T-score consistent with osteoporosis was lower among women with T2D and higher BMI, while aging increased the risk. Although T2D associates with lower BMD among Inuit women, risk of osteoporosis is tempered, possibly by maintenance of a traditional lifestyle.
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Affiliation(s)
- Nihal A Natour
- a School of Human Nutrition , McGill University , Ste-Anne-de-Bellevue , QC , Canada.,b Public Health Department, Faculty of Medicine and Health Sciences , An-Najah National University , Nablus , Palestinian Territory
| | - Suzanne N Morin
- c Department of Medicine , McGill University , Montréal , QC , Canada
| | - Grace M Egeland
- d Department of Global Public Health and Primary Care , University of Bergen , Bergen , Norway.,e Health Registries and Research Development, Health Data and Digitalisation , Norwegian Institute of Public Health , Bergen , Norway
| | - Hope A Weiler
- a School of Human Nutrition , McGill University , Ste-Anne-de-Bellevue , QC , Canada
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25
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Liu M, Lu Y, Cheng X, Ma L, Miao X, Li N, Sun B, Yan S, Li J, Li C. Relationship between abnormal glucose metabolism and osteoporosis in Han Chinese men over the age of 50 years. Clin Interv Aging 2019; 14:445-451. [PMID: 30880926 PMCID: PMC6394237 DOI: 10.2147/cia.s164021] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
AIM The aim of this study was to determine the relationship between abnormal glucose metabolism and osteoporosis (OP) in Han Chinese men over the age of 50 years. PATIENTS AND METHODS A cross-sectional study of 775 male patients aged over 50 years was performed at our hospital in 2011. The patients were divided into a normal glucose metabolism group, an impaired glucose regulation (IGR) group, and a type 2 diabetes mellitus (T2DM) group. Differences in their bone mineral densities (BMDs), OP detection rates, and indices of bone metabolism were assessed. RESULTS After adjusting for age and body mass index (BMI), there were no significant differences in lumbar spine, femoral neck, and total hip BMD values in the three groups (P>0.05) nor in OP detection rates (P=0.19). However, there were some significant differences in bone metabolism markers between the groups after adjusting for age, BMI, and serum creatinine (Cr): 25-hydroxyvitamin D (25(OH)D) was positively correlated with the presence of abnormal glycometabolism (r=0.08; P<0.01), while β-carboxy-terminal cross-linking telopeptide of type I collagen (β-CTX), bone gamma-carboxyglutamic acid protein (BGP; osteocalcin [OC]), and procollagen type 1 intact N-terminal propeptide (P1NP) were negatively correlated (r=-0.13, -0.21, -0.14, respectively; P<0.01). Logistic regression analysis of the data indicated that BGP was the only bone metabolism marker significantly influenced by abnormal glucose metabolism (OR =0.96). CONCLUSION There were no significant differences in BMD or OP detection rates between the three glycometabolism groups after adjusting for age and BMI. However, the bone metabolism marker, BGP, was significantly negatively correlated with abnormal glucose metabolism.
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Affiliation(s)
- Minyan Liu
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Yanhui Lu
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Xiaoling Cheng
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Lichao Ma
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Xinyu Miao
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Nan Li
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Boruo Sun
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Shuangtong Yan
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Jian Li
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
| | - Chunling Li
- Department of Elderly Endocrinology, Chinese PLA General Hospital, Haidian District, Beijing 100853, China,
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26
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Ye Y, Zhao C, Liang J, Yang Y, Yu M, Qu X. Effect of Sodium-Glucose Co-transporter 2 Inhibitors on Bone Metabolism and Fracture Risk. Front Pharmacol 2019; 9:1517. [PMID: 30670968 PMCID: PMC6331441 DOI: 10.3389/fphar.2018.01517] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/11/2018] [Indexed: 12/22/2022] Open
Abstract
The effect of anti-diabetic medications on bone metabolism has received increasing attention, considering that type 2 diabetes mellitus is a common metabolic disorder with adverse effects on bone metabolism. Sodium-glucose co-transporter 2 (SGLT2) inhibitors are novel anti-diabetic medications that prevent glucose resorption at the proximal convoluted tubules in the kidney, increasing urinary glucose excretion, and decreasing the blood glucose level. The superiority of SGLT2 inhibitors shows in reducing the glucose level independent of insulin secretion, lowering the risk of hypoglycemia, and improving cardiovascular outcomes. SGLT2 inhibitors have been associated with genital mycotic infections, increased risk of acute kidney injury, dehydration, orthostatic hypotension, and ketoacidosis. Moreover, the effect of SGLT2 inhibitors on bone metabolism and fracture risk has been widely taken into consideration. Our review summarizes the results of current studies investigating the effects of SGLT2 inhibitors on bone metabolism (possibly including increased bone turnover, disrupted bone microarchitecture, and reduced bone mineral density). Several mechanisms are probably involved, such as bone mineral losses due to the disturbed calcium and phosphate homeostasis, as confirmed by an increase in fibroblast growth factor 23 and parathyroid hormone levels and a decrease in 1,25-dihydroxyvitamin D levels. SGLT2 inhibitors might indirectly increase bone turnover by weight loss. Lowering the blood glucose level might ameliorate bone metabolism impairment in diabetes. The effect of SGLT2 inhibitors on bone fractures remains unclear. Evidence indicating the direct effect of SGLT2 inhibitors on fracture risk is lacking and increased falls probably contribute to fractures.
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Affiliation(s)
- Yangli Ye
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chenhe Zhao
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Liang
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yinqiu Yang
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Mingxiang Yu
- Department of Endocrinology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xinhua Qu
- Department of Bone and Joint Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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27
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Ferrari SL, Abrahamsen B, Napoli N, Akesson K, Chandran M, Eastell R, El-Hajj Fuleihan G, Josse R, Kendler DL, Kraenzlin M, Suzuki A, Pierroz DD, Schwartz AV, Leslie WD. Diagnosis and management of bone fragility in diabetes: an emerging challenge. Osteoporos Int 2018; 29:2585-2596. [PMID: 30066131 PMCID: PMC6267152 DOI: 10.1007/s00198-018-4650-2] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 07/19/2018] [Indexed: 12/11/2022]
Abstract
Fragility fractures are increasingly recognized as a complication of both type 1 and type 2 diabetes, with fracture risk that increases with disease duration and poor glycemic control. Yet the identification and management of fracture risk in these patients remains challenging. This review explores the clinical characteristics of bone fragility in adults with diabetes and highlights recent studies that have evaluated bone mineral density (BMD), bone microstructure and material properties, biochemical markers, and fracture prediction algorithms (i.e., FRAX) in these patients. It further reviews the impact of diabetes drugs on bone as well as the efficacy of osteoporosis treatments in this population. We finally propose an algorithm for the identification and management of diabetic patients at increased fracture risk.
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Affiliation(s)
- S L Ferrari
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospital & Faculty of Medicine, 1205, Geneva, Switzerland.
| | - B Abrahamsen
- Department of Medicine, Holbaek Hospital, Holbaek, Denmark
- OPEN, Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - N Napoli
- Unit of Endocrinology and Diabetes, Department of Medicine, Università Campus Bio-Medico di Roma, Rome, Italy
- Division of Bone and Mineral Diseases, Washington University in St Louis, St Louis, MO, USA
| | - K Akesson
- Department of Clinical Sciences, Clinical and Molecular Osteoporosis Unit, Lund University, Malmö, Sweden
| | - M Chandran
- Osteoporosis and Bone Metabolism Unit, Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - R Eastell
- Academic Unit of Bone Metabolism, Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | - G El-Hajj Fuleihan
- Department of Internal Medicine, Division of Endocrinology, Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Disorders, American University of Beirut Medical Center, Riad El Solh, Beirut, Lebanon
| | - R Josse
- Department of Medicine and Department of Nutritional Sciences, University of Toronto, Toronto, ON, Canada
- Division of Endocrinology and Metabolism, St. Michael's Hospital, Toronto, ON, Canada
| | - D L Kendler
- Department of Medicine, Division of Endocrinology, University of British Columbia, Vancouver, BC, Canada
| | - M Kraenzlin
- Endonet, Endocrine Clinic and Laboratory, Basel, Switzerland
| | - A Suzuki
- Division of Endocrinology and Metabolism, Fujita Health University, Toyoake, Aichi, Japan
| | - D D Pierroz
- International Osteoporosis Foundation, Nyon, Switzerland
| | - A V Schwartz
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - W D Leslie
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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28
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Jang M, Kim H, Lea S, Oh S, Kim JS, Oh B. Effect of duration of diabetes on bone mineral density: a population study on East Asian males. BMC Endocr Disord 2018; 18:61. [PMID: 30185190 PMCID: PMC6126021 DOI: 10.1186/s12902-018-0290-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 08/24/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND The aim of the present study is to evaluate the association between BMD and type 2 DM status in middle-aged and elderly men. To investigate a possible correlation, the present study used the BMD dataset of the Korea National Health and Nutrition Examination Survey (KNHANES) from 2008 to 2011. METHODS In total, 37,753 individuals participated in health examination surveys between 2008 and 2011. A total of 3383 males aged ≥50 years were eligible. They underwent BMD measurement through dual-energy X-ray absorptiometry (DXA). The fasting plasma glucose and insulin levels of participants were also measured. RESULTS Men with prediabetes and diabetes had significantly higher mean BMD at all measured sites than control men did, irrespective of DM status. This was confirmed by multivariable linear regression analyses. DM duration was an important factor affecting BMD. Patients with DM for > 5 years had lower mean BMD in the total hip and femoral neck than those with DM for ≤5 years. Per multivariable linear regression analyses, patients with DM for > 5 years had significantly lower mean BMD at the femoral neck than those with DM ≤5 years. CONCLUSIONS DM duration was significantly associated with reduced femoral neck BMD.
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Affiliation(s)
- Miso Jang
- Department of Family Medicine and Center for Cancer Prevention and Detection, Hospital, National Cancer Center, 323, Ilsan-ro, Ilsandong, Goyang-si, Gyeonggi-do 10408 Republic of Korea
| | - Hyunkyung Kim
- Department of Family Medicine, DDH Hospital, 60, Hi park 2-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10234 Republic of Korea
| | - Shorry Lea
- Center for Health Promotion, Cheil General Hospital, 17, Seoae-ro 1-gil, Jung-gu, Seoul, 04619 Republic of Korea
| | - Sohee Oh
- Department of Biostatistics, SMG-SNU Boramae Medical Center, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061 Republic of Korea
| | - Jong Seung Kim
- Department of Family Medicine, SMG-SNU Boramae Medical Center, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061 Republic of Korea
| | - Bumjo Oh
- Department of Family Medicine, SMG-SNU Boramae Medical Center, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061 Republic of Korea
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DeShields SC, Cunningham TD. Comparison of osteoporosis in US adults with type 1 and type 2 diabetes mellitus. J Endocrinol Invest 2018; 41:1051-1060. [PMID: 29353395 DOI: 10.1007/s40618-018-0828-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 01/07/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE We examined bone mineral density (BMD) and osteoporosis prevalence in those with type 1 compared to type 2 diabetes derived from a nationally representative sample from the civilian community in the United States. METHODS Data from the National Health and Nutrition Examination Survey (NHANES) for 2005-2006, 2007-2008, 2009-2010, and 2013-2014 were merged to obtain a large sample of diabetics at least 20 years of age with participation in the interview and medical examination. Osteoporosis status was defined by BMD at the total femur, femoral neck, or total lumbar spine. Self-reported diabetics that were prescribed insulin within the first year of diagnosis, are currently taking insulin, and reported no prescriptions for any diabetic pills were classified as type 1. Remaining self-reported diabetics were deemed as having type 2. RESULTS A total of 2050 diabetics were included in which 87 (4%) were classified as type 1. Type 1 diabetics were found to have a significantly lower BMD at the total femur and femoral neck, but not at the lumbar spine in the adjusted models. Diabetics with type 1 were 4.7 times more likely to have osteoporosis than those with type 2. There was no significant relationship between diabetes type and BMD or osteoporosis prior to adjustment for confounders. CONCLUSIONS Although our results show an increased likelihood of osteoporosis among those with type 1 diabetes, future studies including a larger sample from a community population are needed. It may benefit diabetics, especially those with type 1, to initiate osteoporosis screening methods including evaluation of fracture risk, bone quality, and BMD measurements at multiple sites earlier than recommended.
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Affiliation(s)
- S C DeShields
- The Center for Health Analytics and Discovery, Eastern Virginia Medical School, Harry Lester Building, 651 Colley Avenue, Room 402, Norfolk, VA, 23507, USA.
| | - T D Cunningham
- The Center for Health Analytics and Discovery, Eastern Virginia Medical School, Harry Lester Building, 651 Colley Avenue, Room 402, Norfolk, VA, 23507, USA
- Master of Healthcare Delivery Science Program, Eastern Virginia Medical School, Norfolk, VA, 23501, USA
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Li KH, Liu YT, Yang YW, Lin YL, Hung ML, Lin IC. A positive correlation between blood glucose level and bone mineral density in Taiwan. Arch Osteoporos 2018; 13:78. [PMID: 30009330 DOI: 10.1007/s11657-018-0494-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 07/09/2018] [Indexed: 02/03/2023]
Abstract
UNLABELLED This study was undertaken to assess the effect of blood glucose on BMD and interactions with age, sex, and BMI in a Taiwanese population. Both obese and non-obese people with type 2 diabetes (T2DM) had higher BMD, at lumbar spine and femoral neck, compared with healthy subjects. In addition, the prevalence of osteoporosis significantly decreased with blood sugar and HbA1c. PURPOSE This study was undertaken to assess the effect of blood glucose on BMD and possible interactions with age, sex, and BMI in a Taiwanese population. PATIENTS AND METHODS This study was a retrospective cross-sectional study using data from the Health Examination Database of Changhua Christian Hospital. Data on BMD of the lumbar spine and femoral neck were obtained by dual X-ray absorptiometry (DXA), and other relevant clinical and laboratory data were recorded. RESULTS The type 2 diabetes (T2DM) group had a higher BMD than the controls. When comparing the prevalence of osteoporosis between subjects by glucose and HbA1c level, the prevalence of osteoporosis significantly decreased with blood glucose and HbA1c. In addition, the BMD of the lumbar spine and femoral neck was higher in the T2DM group than in the controls. Osteoporosis was negatively associated with DM, BMI, and drinking, but positively associated with age, female gender, previous fracture history, and other diseases of the musculoskeletal system and connective tissue. The association between diabetes and osteoporosis remained statistically significant after adjusting for the above factors. T2DM was associated with lower odds of osteoporosis in both obese (OR = 0.77) and non-obese (OR = 0.63) (p for interaction = 0.555). CONCLUSIONS Both obese and non-obese people with T2DM had higher BMD, at lumbar spine and femoral neck, compared with healthy subjects. In addition, the prevalence of osteoporosis significantly decreased with blood glucose and HbA1c.
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Affiliation(s)
- Kun-Hong Li
- Department of Family Medicine, Changhua Christian Hospital, Changhua County, Taiwan
| | - Yen-Tze Liu
- Department of Family Medicine, Changhua Christian Hospital, Changhua County, Taiwan
| | - Yu-Wen Yang
- Department of Family Medicine, Changhua Christian Hospital, Changhua County, Taiwan
| | - Ying-Li Lin
- Department of Family Medicine, Changhua Christian Hospital, Changhua County, Taiwan
| | - Min-Ling Hung
- Department of Pharmacy, Changhua Christian Hospital, Changhua County, Taiwan
| | - I-Ching Lin
- Department of Family Medicine, Changhua Christian Hospital, Changhua County, Taiwan. .,School of Medicine, Chung Shan Medical University, Taichung City, Taiwan. .,School of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan.
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Abdulameer SA, Sahib MN, Sulaiman SAS. The Prevalence of Osteopenia and Osteoporosis Among Malaysian Type 2 Diabetic Patients Using Quantitative Ultrasound Densitometer. Open Rheumatol J 2018; 12:50-64. [PMID: 29755605 PMCID: PMC5925862 DOI: 10.2174/1874312901812010050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 03/06/2018] [Accepted: 03/30/2018] [Indexed: 01/31/2023] Open
Abstract
Background: Type 2 Diabetes Mellitus (T2DM) and osteoporosis are both chronic conditions and the relationship between them is complex. Objective: The aims of this study were to assess the prevalence of Low Bone Mineral density (LBMD, i.e., osteopenia and osteoporosis), as well as, the difference and associations between Quantitative Ultrasound Scan (QUS) parameters with socio-demographic data and clinical related data among T2DM in Penang, Malaysia. Method: An observational, cross-sectional study with a convenient sample of 450 T2DM patients were recruited from the outpatient diabetes clinic at Hospital Pulau Pinang (HPP) to measure Bone Mineral Density (BMD) at the heel bone using QUS. In addition, a self-reported structured questionnaire about the socio-demographic data and osteoporosis risk factors were collected. Moreover, the study included the retrospective collection of clinical data from patients’ medical records. Results: The mean value of T-score for normal BMD, osteopenic and osteoporotic patients’ were (-0.41±0.44), (-1.65±0.39) and (-2.76±0.27), respectively. According to QUS measurements, more than three quarters of T2DM patients (82%) were at high risk of abnormal BMD. The results showed that QUS scores were significantly associated with age, gender, menopausal duration, educational level and diabetic related data. Moreover, the QUS parameters and T-scores demonstrated significant negative correlation with age, menopausal duration, diabetic duration and glycaemic control, as well as, a positive correlation with body mass index and waist to hip ratio. The current study revealed that none of the cardiovascular disease risk factors appear to influence the prevalence of low BMD among T2DM Malaysian patients. Conclusion: The study findings revealed that the assessment of T2DM patients’ bone health and related factor are essential and future educational programs are crucial to improve osteoporosis management.
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Affiliation(s)
| | - Mohanad Naji Sahib
- Faculty of Pharmacy, Al-Rafidain University College, Palestine Street, 10052, Baghdad, Iraq
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Deng X, Xu M, Shen M, Cheng J. Effects of Type 2 Diabetic Serum on Proliferation and Osteogenic Differentiation of Mesenchymal Stem Cells. J Diabetes Res 2018; 2018:5765478. [PMID: 29967795 PMCID: PMC6008747 DOI: 10.1155/2018/5765478] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/13/2018] [Accepted: 03/14/2018] [Indexed: 01/08/2023] Open
Abstract
Diabetic patients have an increased risk of osteoporosis-associated fractures. However, the results of most studies of the effects of diabetes on bone mass in patients with type 2 diabetes (T2DM) have been contradictory. To clarify these conflicting findings, we investigated the effects of diabetic serum on the proliferation and osteogenic differentiation of mesenchymal stem cells (MSCs). We used human sera from subjects with different levels of glycemic control to culture the MSCs and induce osteogenic differentiation. The rate of MSC proliferation differed when MSCs were cultured with sera from diabetic subjects with different levels of hyperglycemia. Hyperglycemic sera promoted MSC proliferation to some extent, but all the diabetic sera inhibited the differentiation of MSCs to osteoblasts. The effects of type 2 diabetic sera on the proliferation and osteogenic differentiation of MSCs are closely related to glycemic control. Our data demonstrate the importance of stratifying the study population according to glycemic control in clinical research into diabetic osteoporosis.
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Affiliation(s)
- Xiangqun Deng
- Department of Endocrinology, Wuhan Third Hospital, Wuhan University, Wuhan 430062, China
| | - Min Xu
- Department of Endocrinology, Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou 213003, China
| | - Moyu Shen
- Department of Endocrinology, Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou 213003, China
| | - Jinluo Cheng
- Department of Endocrinology, Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou 213003, China
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Davidson MA, Mattison DR, Azoulay L, Krewski D. Thiazolidinedione drugs in the treatment of type 2 diabetes mellitus: past, present and future. Crit Rev Toxicol 2017; 48:52-108. [PMID: 28816105 DOI: 10.1080/10408444.2017.1351420] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Thiazolidinedione (TZD) drugs used in the treatment of type 2 diabetes mellitus (T2DM) have proven effective in improving insulin sensitivity, hyperglycemia, and lipid metabolism. Though well tolerated by some patients, their mechanism of action as ligands of peroxisome proliferator-activated receptors (PPARs) results in the activation of several pathways in addition to those responsible for glycemic control and lipid homeostasis. These pathways, which include those related to inflammation, bone formation, and cell proliferation, may lead to adverse health outcomes. As treatment with TZDs has been associated with adverse hepatic, cardiovascular, osteological, and carcinogenic events in some studies, the role of TZDs in the treatment of T2DM continues to be debated. At the same time, new therapeutic roles for TZDs are being investigated, with new forms and isoforms currently in the pre-clinical phase for use in the prevention and treatment of some cancers, inflammatory diseases, and other conditions. The aims of this review are to provide an overview of the mechanism(s) of action of TZDs, a review of their safety for use in the treatment of T2DM, and a perspective on their current and future therapeutic roles.
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Affiliation(s)
- Melissa A Davidson
- a Faculty of Health Sciences , University of Ottawa , Ottawa , Canada.,b McLaughlin Centre for Population Health Risk Assessment , Ottawa , Canada
| | - Donald R Mattison
- b McLaughlin Centre for Population Health Risk Assessment , Ottawa , Canada.,c Risk Sciences International , Ottawa , Canada
| | - Laurent Azoulay
- d Center for Clinical Epidemiology , Lady Davis Research Institute, Jewish General Hospital , Montreal , Canada.,e Department of Oncology , McGill University , Montreal , Canada
| | - Daniel Krewski
- a Faculty of Health Sciences , University of Ottawa , Ottawa , Canada.,b McLaughlin Centre for Population Health Risk Assessment , Ottawa , Canada.,c Risk Sciences International , Ottawa , Canada.,f Faculty of Medicine , University of Ottawa , Ottawa , Canada
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Munhoz L, Cortes ARG, Arita ES. Assessment of osteoporotic alterations in type 2 diabetes: a retrospective study. Dentomaxillofac Radiol 2017; 46:20160414. [PMID: 28186836 PMCID: PMC5606278 DOI: 10.1259/dmfr.20160414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 02/04/2017] [Accepted: 02/09/2017] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVES To analyze the influence of Type 2 diabetes on bone mineral density (BMD) and panoramic radiomorphometry in postmenopausal females, comparing with results from non-diabetic postmenopausal females. METHODS A total of 228 postmenopausal females (mean age: 59.51 ± 11.08 years) were included in this study. Demographics, T scores and Z scores from peripheral dual X-ray absorptiometry (DXA) and mandibular cortical index (MCI) from panoramic radiographs were assessed. Mean comparison between results for diabetics and non-diabetics was carried out with the Student's t-test. In addition, non-parametric correlations between MCI and DXA results were carried out with Spearman's test, at a level of significance of 5%. RESULTS Mean Z score values were significantly higher in diabetics than in non-diabetics (p = 0.001). T and Z score values were also significantly correlated with MCI (r = 0.428, p = 0.001, and r = 0.356, p = 0.022, respectively). CONCLUSIONS Within the limitations of this study, the present results suggest that Type 2 diabetes might increase BMD in postmenopausal females.
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Affiliation(s)
- Luciana Munhoz
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Arthur R G Cortes
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Emiko S Arita
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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35
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Zhao HX, Huang YX, Tao JG. ST1926 Attenuates Steroid-Induced Osteoporosis in Rats by Inhibiting Inflammation Response. J Cell Biochem 2017; 118:2072-2086. [PMID: 27918081 DOI: 10.1002/jcb.25812] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Accepted: 11/28/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Hong-xing Zhao
- Department of Orthopedics; The First Affiliated Hospital of Xinxiang Medical University; Weihui City Henan 453100 China
| | - Yuan-xia Huang
- Department of Orthopedics; The First Affiliated Hospital of Xinxiang Medical University; Weihui City Henan 453100 China
| | - Jin-gang Tao
- Department of Orthopedics; The First Affiliated Hospital of Xinxiang Medical University; Weihui City Henan 453100 China
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36
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Liu Z, Gao H, Bai X, Zhao L, Li Y, Wang B. Evaluation of Singh Index and Osteoporosis Self-Assessment Tool for Asians as risk assessment tools of hip fracture in patients with type 2 diabetes mellitus. J Orthop Surg Res 2017; 12:37. [PMID: 28253896 PMCID: PMC5335822 DOI: 10.1186/s13018-017-0539-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/15/2017] [Indexed: 11/23/2022] Open
Abstract
Background Type 2 diabetes mellitus (T2DM), an epidemic disease around world, has recently been identified as a risk factor for osteoporosis-associated fracture. However, there is no consensus on the best method of assessing fracture risk in patients with T2DM. The aim of this study was to evaluate the usefulness of the Osteoporosis Self-Assessment Tool for Asians (OSTA) and the Singh Index (SI) in hip fracture risk assessment in patients with T2DM. Methods We enrolled 261 postmenopausal women with T2DM: 87 had hip fracture resulting from low-energy trauma and 174 age-matched controls had no fracture (two controls per fracture case). Bone mineral density (BMD) was measured with dual-energy X-ray absorptiometry in the lumbar spine and hip region. The SI was obtained from standard antero-posterior radiographs of the pelvis. The OSTA was calculated with a formula based on weight and age. Data were analyzed with descriptive statistics and tests of difference. Receiver operating characteristic analysis was used to determine optimum cutoff values, sensitivity, and specificity of screening methods. Discriminative abilities of different screening tools were compared with the area under the curve (AUC). Results There were significant differences in BMD at all sites (lumbar spine, femoral neck, trochanter, and total hip) and in SI between the fracture and non-fracture groups (P < 0.05). There was no significant difference in OSTA between the groups (P > 0.05). The area under the curve was 0.747 (95% CI: 0.680–0.813) for lumbar spine BMD, 0.699 (95% CI: 0.633–0.764) for total hip BMD, 0.659 (95% CI: 0.589–0.729) for femoral neck BMD, 0.631 (95% CI: 0.557–0.704) for trochanter BMD, 0.534 (95% CI: 0.459–0.610) for OSTA, 0.636 (95% CI: 0.564–0.709) for SI, and 0.795 (95% CI: 0.734–0.857) for OSTA plus SI. The AUC for combined OSTA plus SI was significantly superior to other parameters besides BMD of the lumbar spine. Conclusions The combination of OSTA plus SI could be a clinical alternative tool for screening of hip fracture risk in large diabetic populations. These tests are inexpensive and simple to perform and could be especially useful in areas where BMD measurement is not accessible.
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Affiliation(s)
- Zhenyu Liu
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Yongan Road No.95, Xicheng District, 100050, Beijing, China
| | - Hua Gao
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Yongan Road No.95, Xicheng District, 100050, Beijing, China
| | - Xiaodong Bai
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Yongan Road No.95, Xicheng District, 100050, Beijing, China
| | - Liang Zhao
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Yongan Road No.95, Xicheng District, 100050, Beijing, China
| | - Yadong Li
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Yongan Road No.95, Xicheng District, 100050, Beijing, China
| | - Baojun Wang
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Yongan Road No.95, Xicheng District, 100050, Beijing, China.
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Hygum K, Starup-Linde J, Harsløf T, Vestergaard P, Langdahl BL. MECHANISMS IN ENDOCRINOLOGY: Diabetes mellitus, a state of low bone turnover - a systematic review and meta-analysis. Eur J Endocrinol 2017; 176:R137-R157. [PMID: 28049653 DOI: 10.1530/eje-16-0652] [Citation(s) in RCA: 197] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/31/2016] [Accepted: 11/15/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To investigate the differences in bone turnover between diabetic patients and controls. DESIGN A systematic review and meta-analysis. METHODS A literature search was conducted using the databases Medline at PubMed and EMBASE. The free text search terms 'diabetes mellitus' and 'bone turnover', 'sclerostin', 'RANKL', 'osteoprotegerin', 'tartrate-resistant acid' and 'TRAP' were used. Studies were eligible if they investigated bone turnover markers in patients with diabetes compared with controls. Data were extracted by two reviewers. RESULTS A total of 2881 papers were identified of which 66 studies were included. Serum levels of the bone resorption marker C-terminal cross-linked telopeptide (-0.10 ng/mL (-0.12, -0.08)) and the bone formation markers osteocalcin (-2.51 ng/mL (-3.01, -2.01)) and procollagen type 1 amino terminal propeptide (-10.80 ng/mL (-12.83, -8.77)) were all lower in patients with diabetes compared with controls. Furthermore, s-tartrate-resistant acid phosphatase was decreased in patients with type 2 diabetes (-0.31 U/L (-0.56, -0.05)) compared with controls. S-sclerostin was significantly higher in patients with type 2 diabetes (14.92 pmol/L (3.12, 26.72)) and patients with type 1 diabetes (3.24 pmol/L (1.52, 4.96)) compared with controls. Also, s-osteoprotegerin was increased among patients with diabetes compared with controls (2.67 pmol/L (0.21, 5.14)). CONCLUSIONS Markers of both bone formation and bone resorption are decreased in patients with diabetes. This suggests that diabetes mellitus is a state of low bone turnover, which in turn may lead to more fragile bone. Altered levels of sclerostin and osteoprotegerin may be responsible for this.
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Affiliation(s)
- Katrine Hygum
- Department of Endocrinology and Internal MedicineAarhus University Hospital, Aarhus C, Denmark
| | - Jakob Starup-Linde
- Department of Endocrinology and Internal MedicineAarhus University Hospital, Aarhus C, Denmark
- Department of Infectious DiseasesAarhus University Hospital, Aarhus N, Denmark
| | - Torben Harsløf
- Department of Endocrinology and Internal MedicineAarhus University Hospital, Aarhus C, Denmark
| | - Peter Vestergaard
- Department of Clinical Medicine and EndocrinologyAalborg University Hospital, Aalborg, Denmark
| | - Bente L Langdahl
- Department of Endocrinology and Internal MedicineAarhus University Hospital, Aarhus C, Denmark
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Kayipmaz S, Akçay S, Sezgin ÖS. Osteoporotic mandibular changes caused by type 2 diabetes mellitus: a comparative study by cone beam computed tomography imaging. Oral Radiol 2016. [DOI: 10.1007/s11282-016-0252-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sellmeyer DE, Civitelli R, Hofbauer LC, Khosla S, Lecka-Czernik B, Schwartz AV. Skeletal Metabolism, Fracture Risk, and Fracture Outcomes in Type 1 and Type 2 Diabetes. Diabetes 2016; 65:1757-66. [PMID: 27329951 PMCID: PMC4915586 DOI: 10.2337/db16-0063] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 03/23/2016] [Indexed: 02/06/2023]
Abstract
Fracture risk is significantly increased in both type 1 and type 2 diabetes, and individuals with diabetes experience worse fracture outcomes than normoglycemic individuals. Factors that increase fracture risk include lower bone mass in type 1 diabetes and compromised skeletal quality and strength despite preserved bone density in type 2 diabetes, as well as the effects of comorbidities such as diabetic macro- and microvascular complications. In this Perspective, we assess the developing scientific knowledge regarding the epidemiology and pathophysiology of skeletal fragility in patients with diabetes and the emerging data on the prediction, treatment, and outcomes of fractures in individuals with type 1 and type 2 diabetes.
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Affiliation(s)
- Deborah E Sellmeyer
- Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Roberto Civitelli
- Division of Bone and Mineral Diseases, Washington University in St. Louis School of Medicine, St. Louis, MO
| | - Lorenz C Hofbauer
- Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, Germany and Center for Regenerative Therapies Dresden, Dresden, Germany
| | - Sundeep Khosla
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition Research and the Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN
| | - Beata Lecka-Czernik
- Departments of Orthopaedic Surgery and Physiology and Pharmacology and Center for Diabetes and Endocrine Research, The University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Ann V Schwartz
- Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco, CA
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Kumar BS, Ravisankar A, Mohan A, Kumar DP, Katyarmal DT, Sachan A, Sarma KVS. Effect of oral hypoglycaemic agents on bone metabolism in patients with type 2 diabetes mellitus & occurrence of osteoporosis. Indian J Med Res 2016; 141:431-7. [PMID: 26112844 PMCID: PMC4510723 DOI: 10.4103/0971-5916.159287] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background & objectives: Type 2 diabetes mellitus (T2DM) is considered to be a protective factor against development of osteoporosis. But oral hypoglycaemic agents (OHA) are likely to increase the risk of osteoporosis. This study was carried out to evaluate the effect of various OHA on bone mineral density (BMD) in patients with T2DM. Methods: Forty one patients (study group) with T2DM (mean age 51.9±5.5 yr; 31 females) receiving treatment with oral hypoglycaemic agents (OHA) [thiazolidinediones alone (n=14) or in combination with other OHA (n=27)] for a period of at least three consecutive years and 41 age- and gender-matched healthy controls (mean age 51.4±5.1 yr) were included in the study. A detailed clinical history was taken and all were subjected to physical examination and recording of anthropometric data. BMD was assessed for both patients and controls. Results: The mean body mass index (kg/m2) (26.5±4.90 vs 27.3 ±5.33) and median [inter-quartile range (IQR)] duration of menopause (yr) among women [6(2-12) vs 6(1-13)] were comparable between both groups. The bone mineral density (BMD; g/cm2) at the level of neck of femur (NOF) (0.761±0.112 vs 0.762±0.110), lumbar spine antero-posterior view (LSAP) (0.849±0.127 vs 0.854±0.135); median Z-score NOF {0.100[(-0.850)-(0.550)] vs -0.200[(-0.800)-(0.600)]}, LSAP {-1.200[(-1.700)-(-0.200)] vs -1.300 [(-1.85)-(-0.400)]} were also similar in study and control groups. Presence of normal BMD (9/41 vs 8/41), osteopenia (16/41 vs 18/41) and osteoporosis (16/41 vs 15/41) were comparable between the study and control groups. No significant difference was observed in the BMD, T-scores and Z-scores at NOF and LSAP among T2DM patients treated with thiazolidinediones; those treated with other OHA and controls. Interpretation & conclusions: The present findings show that the use of OHA for a period of three years or more does not significantly affect the BMD in patients with T2DM.
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Affiliation(s)
- B Siddhartha Kumar
- Division of Rheumatology, Department of Medicine, Sri Venkateswara Institute of Medical Sciences, Tirupati, India
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Dai Z, Wang R, Ang LW, Yuan JM, Koh WP. Bone turnover biomarkers and risk of osteoporotic hip fracture in an Asian population. Bone 2016; 83:171-177. [PMID: 26555636 PMCID: PMC4724247 DOI: 10.1016/j.bone.2015.11.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 01/19/2023]
Abstract
While epidemiologic studies suggest that bone turnover biomarkers may predict hip fracture risk, findings are inconsistent and Asian data are lacking. We conducted a matched case-control (1:1) study nested in the Singapore Chinese Health Study, a population-based prospective cohort of Chinese men and women (45-74years) recruited from 1993 to 1998 in Singapore. One hundred cases with incident hip fracture and 100 individually matched controls were randomly selected from 63,257 participants. Serum bone turnover biomarkers, namely bone alkaline phosphatase (bone ALP), osteocalcin (OC), procollagen type I N propeptide (PINP), N-terminal and C-terminal crosslinking telopeptide of type I collagen (NTX-I and CTX-I) were measured using immunoassays. Hip fracture cases had significantly higher serum levels of OC, PINP, CTX-I and NTX-I than controls (p<0.05). There was a dose-dependent positive relationship between OC, PINP, CTX-I and NTX-I and risk of hip fracture (all Ps for trend≤0.006), where the risk was significantly increased by 4.32-8.23 folds for the respective BTM [Quartile (Q) 4 vs. Q1]. The odds ratio [OR (95% CI)] at the highest quartile (Q4) was 6.63 (2.02-21.18) for PINP and 4.92 (1.67-14.51) for CTX-I. The joint effect of PINP and CTX-I showed a 7-fold increase in risk (OR: 7.36; 95% CI: 2.53-21.41) comparing participants with higher levels of PINP (Q4) and CTX-I (Q3-Q4) to those with low levels of PINP (Q1-Q3) and CTX-I (Q1-Q2). Our data demonstrated that higher serum levels of bone turnover biomarkers were associated with increased risk of hip fracture in an Asian population.
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Affiliation(s)
- Zhaoli Dai
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.
| | - Renwei Wang
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
| | - Li-Wei Ang
- Epidemiology & Disease Control Division, Ministry of Health, Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA; Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore; Duke-NUS Graduate Medical School Singapore, Singapore, Singapore.
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Abstract
Type 2 diabetes affects an increasing proportion of older adults, the population that is also at elevated risk of fracture. Type 2 diabetes itself increases the risk of fracture, particularly in African-American and Latino populations. In Western countries, overweight and obesity, associated with reduced fracture risk, are highly prevalent in diabetic patients. Studies in East Asian countries that have a lower prevalence of obesity with diabetes may help to disentangle the effects of diabetes and obesity on the skeleton. Type 2 diabetes is also associated with higher bone density, and as a result standard tools for fracture prediction tend to underestimate fracture risk in this population, an important challenge for risk assessment in the clinical setting. Contributing factors to the increased fracture risk in type 2 diabetes include more frequent falls and deficits in diabetic bone, not captured by dual X-ray absorptiometry (DXA), that are as yet not clearly understood. Recent epidemiological studies indicate that poor glycemic control contributes to increased fracture risk although intensive lowering of A1C is not effective in preventing fracture. This article is part of a Special Issue entitled "Bone and diabetes".
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Affiliation(s)
- Ann V Schwartz
- Department of Epidemiology and Biostatistics, University of California San Francisco, 550 16th Street Box 0560, San Francisco, CA 94143, USA.
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Mathen PG, Thabah MM, Zachariah B, Das AK. Decreased Bone Mineral Density at the Femoral Neck and Lumbar Spine in South Indian Patients with Type 2 Diabetes. J Clin Diagn Res 2015; 9:OC08-12. [PMID: 26500934 DOI: 10.7860/jcdr/2015/14390.6450] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/15/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND With prevalence of diabetes in India reaching epidemic proportions and increase in the population of geriatric age group and risks of falls, it is important to understand the effect that diabetes has on bone health. AIM The objective was to assess bone mineral density (BMD) of patients with type 2 diabetes mellitus (T2DM) and to study factors contributing to BMD in patients with T2DM. MATERIALS AND METHODS This was a prospective cross-sectional study on 150 patients with T2DM (diagnosed at age > 30 years) and an equal number (n=150) of age and sex matched healthy controls from September 2012 to July 2014 at a tertiary care center located in Southern India. BMD was measured at the femoral neck and lumbar spine (L2-L4) by dual energy absorptiometry (DXA) in cases and controls. Serum total calcium, phosphorus and alkaline phosphatase (ALP) and 25-OH- vitamin D3 was measured in patient group. RESULTS Mean age (SD) was 51.29 (±8.05) and 51 (±8.3) years in cases and controls, respectively. The femoral neck and lumbar spine BMD was significantly lower in T2DM cases compared to controls. Also the femoral neck and lumbar spine T-score was significantly lower in T2DM cases compared to controls. Femoral neck BMD among male patients with T2DM was significantly lower compared to controls (men). Among women, BMD at femoral neck as well as lumbar spine was significantly lower in cases when compared to controls. Ninety six out of 150 (64%) T2DM cases had Vitamin D values <20 ng/mL. There was weak negative correlation between age of patient, duration of diabetes and HbA1C with femoral neck BMD. There was weak negative correlation between HbA1C and lumbar spine BMD. CONCLUSION Indian subjects with type 2 diabetes have significantly lower BMD at both femoral neck and lumbar spine compared to age and sex matched healthy controls. We conclude that osteopenia and osteoporosis are overlooked complications of diabetes. Longitudinal studies are needed to see for actual incidence of fractures among this high risk group.
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Affiliation(s)
| | - Molly Mary Thabah
- Associate Professor, Department of Medicine, JIPMER , Puducherry, India
| | - Bobby Zachariah
- Professor and Head, Department of Biochemistry, JIPMER , Puducherry, India
| | - Ashok Kumar Das
- Senior Professor, Department of Medicine, JIPMER , Puducherry, India
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Lin X, Xiong D, Peng YQ, Sheng ZF, Wu XY, Wu XP, Wu F, Yuan LQ, Liao EY. Epidemiology and management of osteoporosis in the People's Republic of China: current perspectives. Clin Interv Aging 2015; 10:1017-33. [PMID: 26150706 PMCID: PMC4485798 DOI: 10.2147/cia.s54613] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
With the progressive aging of the population, osteoporosis has gradually grown into a global health problem for men and women aged 50 years and older because of its consequences in terms of disabilities and fragility fractures. This is especially true in the People's Republic of China, which has the largest population and an increasing proportion of elderly people, as osteoporosis has become a serious challenge to the Chinese government, society, and family. Apart from the fact that all osteoporotic fractures can increase the patient's morbidity, they can also result in fractures of the hip and vertebrae, which are associated with a significantly higher mortality. The cost of osteoporotic fractures, moreover, is a heavy burden on families, society, and even the country, which is likely to increase in the future due, in part, to the improvement in average life expectancy. Therefore, understanding the epidemiology of osteoporosis is essential and is significant for developing strategies to help reduce this problem. In this review, we will summarize the epidemiology of osteoporosis in the People's Republic of China, including the epidemiology of osteoporotic fractures, focusing on preventive methods and the management of osteoporosis, which consist of basic measures and pharmacological treatments.
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Affiliation(s)
- Xiao Lin
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Dan Xiong
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Yi-Qun Peng
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Zhi-Feng Sheng
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Xi-Yu Wu
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Xian-Ping Wu
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Feng Wu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Ling-Qing Yuan
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
| | - Er-Yuan Liao
- Institute of Metabolism and Endocrinology, Central South University, Changsha, Hunan, People's Republic of China
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de Waard EAC, van Geel TACM, Savelberg HHCM, Koster A, Geusens PPMM, van den Bergh JPW. Increased fracture risk in patients with type 2 diabetes mellitus: an overview of the underlying mechanisms and the usefulness of imaging modalities and fracture risk assessment tools. Maturitas 2014; 79:265-74. [PMID: 25192916 DOI: 10.1016/j.maturitas.2014.08.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 08/06/2014] [Indexed: 12/11/2022]
Abstract
Type 2 diabetes mellitus has recently been linked to an increased fracture risk. Since bone mass seems to be normal to elevated in patient with type 2 diabetes, the increased fracture risk is thought to be due to both an increased falling frequency and decreased bone quality. The increased falling frequency is mainly a result of complications of the disease such as a retinopathy and polyneuropathy. Bone quality is affected through changes in bone shape, bone micro-architecture, and in material properties such as bone mineralization and the quality of collagen. Commonly used methods for predicting fracture risk such as dual energy X-ray absorptiometry and fracture risk assessment tools are helpful in patients with type 2 diabetes mellitus, but underestimate the absolute fracture risk for a given score. New imaging modalities such as high resolution peripheral quantitative computed tomography are promising for giving insight in the complex etiology underlying the fragility of the diabetic bone, as they can give more insight into the microarchitecture and geometry of the bone. We present an overview of the contributing mechanisms to the increased fracture risk and the usefulness of imaging modalities and risk assessment tools in predicting fracture risk in patients with type 2 diabetes.
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Affiliation(s)
- Ellis A C de Waard
- Maastricht University Medical Centre/NUTRIM, Department of Internal Medicine, Subdivision of Rheumatology, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands.
| | - Tineke A C M van Geel
- Maastricht University/CAPHRI and NUTRIM, Department of Family Medicine, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Hans H C M Savelberg
- Maastricht University Medical Centre/NUTRIM, Department of Human Movement Science, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Annemarie Koster
- Maastricht University/CAPHRI, Department of Social Medicine, School for Public Health and Primary Care, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands
| | - Piet P M M Geusens
- Maastricht University Medical Centre/CAPHRI, Department of Internal Medicine, Subdivision of Rheumatology, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands; University of Hasselt, Biomedical Research Institute, P.O. Box 6, 3590 Diepenbeek, Belgium
| | - Joop P W van den Bergh
- Maastricht University Medical Centre/NUTRIM, Department of Internal Medicine, Subdivision of Rheumatology, P.O. Box 5800, 6202 AZ Maastricht, The Netherlands; University of Hasselt, Biomedical Research Institute, P.O. Box 6, 3590 Diepenbeek, Belgium; VieCuri Medical Centre, Department of Internal Medicine, Subdivision of Endocrinology, P.O. Box 1926, 5900 BX Venlo, The Netherlands
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46
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Jiajue R, Jiang Y, Wang O, Li M, Xing X, Cui L, Yin J, Xu L, Xia W. Suppressed bone turnover was associated with increased osteoporotic fracture risks in non-obese postmenopausal Chinese women with type 2 diabetes mellitus. Osteoporos Int 2014; 25:1999-2005. [PMID: 24760246 DOI: 10.1007/s00198-014-2714-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 04/08/2014] [Indexed: 12/12/2022]
Abstract
UNLABELLED We found that type 2 diabetes mellitus (T2DM) was associated with increased fracture risks in non-obese postmenopausal Chinese women, and suppressed bone turnover might be the underlying mechanism. This is the first study evaluating and explaining the association of T2DM with osteoporotic fracture in Chinese population with such high homogeneity. INTRODUCTION The aim of this study was to investigate the association of T2DM with osteoporotic fracture in postmenopausal Chinese women. METHODS One thousand four hundred ten postmenopausal women were included and stratified into non-obese population [body mass index (BMI) < 25 kg/m(2)] and obese population (BMI ≥ 25 kg/m(2)). Each type of population was classified into diabetes group, impaired fasting glucose (IFG) group, and normal glucose group. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry. Serum C-terminal telopeptide of type I collagen (β-CTX) and serum N-amino terminal prepeptide of type 1 procollagen (P1NP) were quantified. Vertebral fractures (VFs) and non-VFs were assessed by vertebral X-ray and questionnaire, respectively. RESULTS Comparing to normal glucose group, diabetes group and IFG group both had lower levels of P1NP and β-CTX, despite population types. Despite having non-decreased BMD, non-obese diabetic patients had higher risks of total fracture and VF than BMI-matched normal glucose subjects (both P < 0.05). Non-obese population was further classified by a mean value of P1NP or β-CTX. Non-obese diabetic patients with low P1NP or high β-CTX had higher fracture risks (both P < 0.05), comparing to non-obese normal glucose subjects with high P1NP or high β-CTX, respectively. CONCLUSIONS Type 2 diabetic patients had suppressed bone turnover, which might explain the increased fracture risks, independent of BMD. IFG patients might also have poor bone quality and need early prevention.
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Affiliation(s)
- R Jiajue
- Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Wangfujing Street, Beijing, China
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47
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Xu F, Dong Y, Huang X, Li M, Qin L, Ren Y, Guo F, Chen A, Huang S. Decreased osteoclastogenesis, osteoblastogenesis and low bone mass in a mouse model of type 2 diabetes. Mol Med Rep 2014; 10:1935-41. [PMID: 25109926 DOI: 10.3892/mmr.2014.2430] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 10/25/2013] [Indexed: 11/06/2022] Open
Abstract
The effect of type 2 diabetes mellitus (T2DM) on bone is controversial. Therefore, the present study investigated whether T2DM causes osteoporosis and explored the underlying mechanisms involved in this process. The effects of T2DM on bone physiology were analyzed in a mouse model of T2DM; KK/Upj‑Ay/J (KK‑Ay) mice develop diabetes after 8 weeks and exhibit stable diabetes symptoms and signs after 10 weeks when fed a KK‑Ay mouse maintenance fodder. Diabetic mice exhibited hyperglycemia, hyperinsulinemia and increased body and fat pad weight in comparison with C57BL/6 non-diabetic mice. Furthermore, diabetic mice demonstrated low bone weight and bone mineral density in the femur, tibia and fifth lumbar vertebra. Using von Kossa and tartrate-resistant acid phosphatase (TRAP) staining, alkaline phosphatase and TRAP activity analyses and gene profiling it was demonstrated that osteoblastogenesis and osteoclastogenesis were impaired in diabetic mice. To evaluate the bone biomechanics, the ultimate load of the bone was analyzed. It was found that the ultimate load of the tibia in diabetic mice was lower than that in the controls. The results from the present study suggest that bone metabolism is impaired in T2DM, resulting in decreased osteoblastogenesis, osteoclastogenesis and bone mass.
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Affiliation(s)
- Fei Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Yonghui Dong
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Xin Huang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Mi Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Liang Qin
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Ye Ren
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Fengjing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Anmin Chen
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
| | - Shilong Huang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430000, P.R. China
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48
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Starup-Linde J, Eriksen SA, Lykkeboe S, Handberg A, Vestergaard P. Biochemical markers of bone turnover in diabetes patients--a meta-analysis, and a methodological study on the effects of glucose on bone markers. Osteoporos Int 2014; 25:1697-708. [PMID: 24676844 DOI: 10.1007/s00198-014-2676-7] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 02/24/2014] [Indexed: 02/07/2023]
Abstract
UNLABELLED This study examined whether markers of bone turnover differ between individuals with and without diabetes. Bone markers showed heterogeneity between studies and were discrepant for markers of bone creation and markers of bone degradation. Bone markers may be of lesser value in diabetes due to heterogeneity. INTRODUCTION The aim of this meta-analysis was to compare existing literature regarding changes in bone markers among diabetics compared to healthy controls. To exclude that blood glucose levels among diabetes patients could influence the assays used for determining bone turnover markers, a methodological study was performed. METHODS Medline at Pubmed Embase, Cinahl, Svemed+, Cochrane library, and Bibliotek.dk was searched in August 2012. The studies should examine biochemical bone turnover among diabetes patients in comparison to controls in an observational design. In the methodological study, fasting blood samples were drawn from two individuals. Glucose was added to the blood samples in different concentrations and OC, CTX, and procollagen type 1 amino terminal propeptide were measured after 0, 1, 2, and 3 h. RESULTS Twenty-two papers fulfilled the criteria for the meta-analysis. From the pooled data in the meta-analysis, the bone markers osteocalcin (OC) (-1.15 ng/ml [-1.78,-0.52]) and C-terminal cross-linked telopeptide (CTX) (-0.14 ng/ml [-0.22, -0.05]) were significantly lower among diabetes patients than non-diabetes patients, however other markers did not differ. All markers displayed very high heterogeneity by I2 statistics. In the methodological study, the addition of glucose did not significantly change the bone markers neither by level of glucose nor with increasing incubation time. CONCLUSION The dissociative pattern of biochemical bone markers of bone formation and bone resorption present in diabetes patients is thus not caused by glucose per se but may be modulated by unknown factors associated with diabetes mellitus.
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Affiliation(s)
- J Starup-Linde
- Clinical Institute, Aalborg University, Fredrik Bajers vej 7, 9220, Aalborg, Denmark,
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49
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Loureiro MB, Ururahy MAG, Freire-Neto FP, Oliveira GHM, Duarte VMG, Luchessi AD, Brandão-Neto J, Hirata RDC, Hirata MH, Maciel-Neto JJ, Arrais RF, Almeida MG, Rezende AA. Low bone mineral density is associated to poor glycemic control and increased OPG expression in children and adolescents with type 1 diabetes. Diabetes Res Clin Pract 2014; 103:452-7. [PMID: 24529565 DOI: 10.1016/j.diabres.2013.12.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 10/08/2013] [Accepted: 12/20/2013] [Indexed: 12/28/2022]
Abstract
AIMS To investigate early alterations on bone mineral density (BMD) and RANK, RANKL and OPG mRNA expression in peripheral blood leukocytes (PBL) in children and adolescents with type 1 diabetes (T1D) and the relationship with glycemic control and bone biomarkers. METHODS This cross-sectional study included 75 children and adolescents with T1D and 100 individuals without diabetes (normoglycemic-NG) aged 6-20 years old. T1D individuals were considered to have good (T1DG) or poor (T1DP) glycemic control according to the values of HbA1c. Phosphorus, magnesium, total and ionized calcium, osteocalcin, alkaline phosphatase and tartaric-resistant acid phosphatase (TRAP) values were determined in blood samples. BMD was measured by DEXA. RANK, RANKL and OPG mRNA expression was measured in PBL by real-time PCR. RESULTS Osteocalcin values were decreased in diabetic groups in comparison to NG group (p<0.05), and a negative correlation with both serum glucose (r=-0.265, p<0.01) and Hb1Ac (r=-0.252, p<0.01) in T1D group was found. BMD was lower in diabetic groups in comparison with NG group (p<0.05) and a negative correlation was observed between BMD and both serum glucose (r=-0.357, p<0.01) and HbA1c (r=-0.351, p<0.01) in T1D group. OPG mRNA expression was significantly increased in T1D and T1DP groups in comparison with NG group (p<0.05). In conclusion, children and adolescents with early onset T1D presented low bone mineral density associated to unsatisfactory glycemic control, increased OPG mRNA expression and low osteocalcin concentration.
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Affiliation(s)
- Melina B Loureiro
- Department of Clinical and Toxicological Analysis, UFRN, Natal, RN, Brazil.
| | | | | | | | - Valéria M G Duarte
- Department of Clinical and Toxicological Analysis, UFRN, Natal, RN, Brazil
| | - André D Luchessi
- Department of Clinical and Toxicological Analysis, UFRN, Natal, RN, Brazil
| | | | - Rosario D C Hirata
- Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, SP, Brazil
| | - Mario H Hirata
- Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, SP, Brazil
| | | | | | - Maria G Almeida
- Department of Clinical and Toxicological Analysis, UFRN, Natal, RN, Brazil
| | - Adriana A Rezende
- Department of Clinical and Toxicological Analysis, UFRN, Natal, RN, Brazil
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50
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Ha M, Hu J, Petrini MA, McCoy TP. The Effects of an Educational Self-Efficacy Intervention on Osteoporosis Prevention and Diabetes Self-Management Among Adults With Type 2 Diabetes Mellitus. Biol Res Nurs 2014; 16:357-67. [DOI: 10.1177/1099800413512019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Prevalence of osteoporosis (OP) is high among Chinese adults with diabetes. Assessment of OP and fracture risk as well as patient education should be included as part of the management of diabetes. Purpose: The purpose of this pilot study was to test the effectiveness of an educational self-efficacy intervention on knowledge about OP, dietary calcium intake, the importance of physical activity (PA), and glycemic control among Chinese adults with type 2 diabetes residing in Wuhan, China. Method: A quasi-experimental design with repeated measures was employed. Participants were assigned to either the intervention ( n = 23) or the control group ( n = 23). Intervention participants attended 6 weekly 1-hr educational sessions comprising presentations, demonstration, and discussions. Control participants received standard care. Data were collected via questionnaires at pre- and postintervention and at 3-month follow-up, and blood was drawn at preintervention and 3-month follow-up. Results: Participants in the intervention group had significant improvement in OP knowledge, F(2, 43) = 11.504, p < .001; OP self-efficacy, F(2, 43) = 6.915, p = .003; dietary calcium intake, F(2, 43) = 7.856, p = .002; level of PA, F(2, 43) = 4.787, p = .011; diabetes self-care activities, F(2, 43) = 14.009, p < .001; diabetes self-efficacy, F(2, 43) = 19.722, p < .001; and glycemic control (A1C level; t = 2.809, p = .010) compared to the control group at the 3-month follow-up. Conclusion: The results demonstrate the effectiveness of OP prevention education based on self-efficacy theory among Chinese adults with type 2 diabetes.
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Affiliation(s)
- Mei Ha
- Wuhan University, HOPE School of Nursing, Wuhan, China
| | - Jie Hu
- Wuhan University, HOPE School of Nursing, Wuhan, China
- School of Nursing, University of North Carolina at Greensboro, Greensboro, NC, USA
| | | | - Thomas P. McCoy
- School of Nursing, University of North Carolina at Greensboro, Greensboro, NC, USA
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