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Kanoh T, Mizoguchi T, Tonoki A, Itoh M. Modeling of age-related neurological disease: utility of zebrafish. Front Aging Neurosci 2024; 16:1399098. [PMID: 38765773 PMCID: PMC11099255 DOI: 10.3389/fnagi.2024.1399098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/18/2024] [Indexed: 05/22/2024] Open
Abstract
Many age-related neurological diseases still lack effective treatments, making their understanding a critical and urgent issue in the globally aging society. To overcome this challenge, an animal model that accurately mimics these diseases is essential. To date, many mouse models have been developed to induce age-related neurological diseases through genetic manipulation or drug administration. These models help in understanding disease mechanisms and finding potential therapeutic targets. However, some age-related neurological diseases cannot be fully replicated in human pathology due to the different aspects between humans and mice. Although zebrafish has recently come into focus as a promising model for studying aging, there are few genetic zebrafish models of the age-related neurological disease. This review compares the aging phenotypes of humans, mice, and zebrafish, and provides an overview of age-related neurological diseases that can be mimicked in mouse models and those that cannot. We presented the possibility that reproducing human cerebral small vessel diseases during aging might be difficult in mice, and zebrafish has potential to be another animal model of such diseases due to their similarity of aging phenotype to humans.
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Affiliation(s)
- Tohgo Kanoh
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Takamasa Mizoguchi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Ayako Tonoki
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Motoyuki Itoh
- Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
- Research Institute of Disaster Medicine, Chiba University, Chiba, Japan
- Health and Disease Omics Center, Chiba University, Chiba, Japan
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Szulc P, Whittier DE, Boyd SK, Chapurlat R. Rapid bone microarchitecture decline in older men with high bone turnover-the prospective STRAMBO study. J Bone Miner Res 2024; 39:17-29. [PMID: 38630881 DOI: 10.1093/jbmr/zjad015] [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: 08/26/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 04/19/2024]
Abstract
Older men with high bone turnover have faster bone loss. We assessed the link between the baseline levels of bone turnover markers (BTMs) and the prospectively assessed bone microarchitecture decline in men. In 825 men aged 60-87 yr, we measured the serum osteocalcin (OC), bone alkaline phosphatase (BAP), N-terminal propeptide of type I procollagen (PINP), and C-terminal telopeptide of type I collagen (CTX-I), and urinary total deoxypyridinoline (tDPD). Bone microarchitecture and strength (distal radius and distal tibia) were estimated by high-resolution pQCT (XtremeCT, Scanco Medical) at baseline and then after 4 and 8 yr. Thirty-seven men took medications affecting bone metabolism. Statistical models were adjusted for age and BMI. At the distal radius, the decrease in the total bone mineral density (Tt.BMD), cortical BMD (Ct.BMD), cortical thickness (Ct.Thd), and cortical area (Ct.Ar) and failure load was faster in the highest vs the lowest CTX-I quartile (failure load: -0.94 vs -0.31% yr-1, P < .001). Patterns were similar for distal tibia. At the distal tibia, bone decline (Tt.BMD, Ct.Thd, Ct.Ar, Ct.BMD, and failure load) was faster in the highest vs the lowest tDPD quartile. At each skeletal site, the rate of decrease in Tb.BMD differed between the extreme OC quartiles (P < .001). Men in the highest BAP quartile had a faster loss of Tt.BMD, Tb.BMD, reaction force, and failure load vs the lowest quartile. The link between PINP and bone decline was poor. The BTM score is the sum of the nos. of the quartiles for each BTM. Men in the highest quartile of the score had a faster loss of cortical bone and bone strength vs the lowest quartile. Thus, in the older men followed prospectively for 8 yr, the rate of decline in bone microarchitecture and estimated bone strength was 50%-215% greater in men with high bone turnover (highest quartile, CTX-I above the median) compared to the men with low bone turnover (lowest quartile, CTX-I below the median).
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Affiliation(s)
- Pawel Szulc
- INSERM UMR 1033, University of Lyon, Hôpital Edouard Herriot, Lyon 69437, France
| | - Danielle E Whittier
- McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
| | - Steven K Boyd
- McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
| | - Roland Chapurlat
- INSERM UMR 1033, University of Lyon, Hôpital Edouard Herriot, Lyon 69437, France
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Herda AA, Nabavizadeh O. Effect of six weeks of resistance training on bone preservation in older adults: a randomized control trial. Aging Clin Exp Res 2023; 35:2633-2641. [PMID: 37838645 DOI: 10.1007/s40520-023-02575-9] [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: 08/09/2023] [Accepted: 09/20/2023] [Indexed: 10/16/2023]
Abstract
BACKGROUND It has been established that chronic resistance exercise contributes to positive changes to bone in older adults. AIMS This study evaluated the effect of 6 weeks of resistance exercise with either elastic bands or dumbbells vs. a control period on bone morphology of older adults. METHODS Fifty-seven adults (mean ± SD; age = 66.5 ± 7.09 yrs; height = 165.2 ± 10.6 cm; body mass = 74.5 ± 14.6 kg) were randomized into three groups (dumbbell, elastic, or control). Participants underwent a total body dual-energy X-ray absorptiometry (DXA) scan for total body and segmental bone mineral content (BMC) and bone mineral density (BMD) before and following 6-week intervention. Age-matched Z-scores for BMD and BMC were recorded. Data were analyzed using two-way repeated measures ANOVAs and 0.05 significance level. RESULTS BMCarm improved for the dumbbell group (p = 0.016) after the training, with no change in BMD for any group (p > 0.05). Additionally, significant (time x treatment group) interaction (p = 0.024) of age-matched Z-scores indicated an improvement in only the dumbbell group after 6 weeks (p = 0.015), with no change in the elastic group despite them having greater Z-scores than the control group. DISCUSSION This study is the first to demonstrate acute normative adaptations as dumbbell-based programs may promote positive maintenance of bone metrics over 6 weeks, despite the lack of significant change in absolute BMC or BMD. CONCLUSION Adults did not lose relative bone mass with acute exercise using dumbbells as the external load applied and this may lead to positive changes following chronic training. There was no bone-related impact from elastic bands, suggesting a weighted load or force produced relative to gravity is beneficial.
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Affiliation(s)
- Ashley A Herda
- Department of Health, Sport, and Exercise Sciences, University of Kansas Edwards Campus, 12604 Quivira Road, BEST 350X, Overland Park, KS, 66213, USA.
| | - Omid Nabavizadeh
- Department of Geriatric Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
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Fensham NC, Heikura IA, McKay AKA, Tee N, Ackerman KE, Burke LM. Short-Term Carbohydrate Restriction Impairs Bone Formation at Rest and During Prolonged Exercise to a Greater Degree than Low Energy Availability. J Bone Miner Res 2022; 37:1915-1925. [PMID: 35869933 PMCID: PMC9804216 DOI: 10.1002/jbmr.4658] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 01/05/2023]
Abstract
Bone stress injuries are common in athletes, resulting in time lost from training and competition. Diets that are low in energy availability have been associated with increased circulating bone resorption and reduced bone formation markers, particularly in response to prolonged exercise. However, studies have not separated the effects of low energy availability per se from the associated reduction in carbohydrate availability. The current study aimed to compare the effects of these two restricted states directly. In a parallel group design, 28 elite racewalkers completed two 6-day phases. In the Baseline phase, all athletes adhered to a high carbohydrate/high energy availability diet (CON). During the Adaptation phase, athletes were allocated to one of three dietary groups: CON, low carbohydrate/high fat with high energy availability (LCHF), or low energy availability (LEA). At the end of each phase, a 25-km racewalk was completed, with venous blood taken fasted, pre-exercise, and 0, 1, 3 hours postexercise to measure carboxyterminal telopeptide (CTX), procollagen-1 N-terminal peptide (P1NP), and osteocalcin (carboxylated, gla-OC; undercarboxylated, glu-OC). Following Adaptation, LCHF showed decreased fasted P1NP (~26%; p < 0.0001, d = 3.6), gla-OC (~22%; p = 0.01, d = 1.8), and glu-OC (~41%; p = 0.004, d = 2.1), which were all significantly different from CON (p < 0.01), whereas LEA demonstrated significant, but smaller, reductions in fasted P1NP (~14%; p = 0.02, d = 1.7) and glu-OC (~24%; p = 0.049, d = 1.4). Both LCHF (p = 0.008, d = 1.9) and LEA (p = 0.01, d = 1.7) had significantly higher CTX pre-exercise to 3 hours post-exercise but only LCHF showed lower P1NP concentrations (p < 0.0001, d = 3.2). All markers remained unchanged from Baseline in CON. Short-term carbohydrate restriction appears to result in reduced bone formation markers at rest and during exercise with further exercise-related increases in a marker of bone resorption. Bone formation markers during exercise seem to be maintained with LEA although resorption increased. In contrast, nutritional support with adequate energy and carbohydrate appears to reduce unfavorable bone turnover responses to exercise in elite endurance athletes. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Nikita C Fensham
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - Ida A Heikura
- Canadian Sport Institute Pacific, Victoria, Canada.,Exercise Science, Physical & Health Education, University of Victoria, Victoria, Canada
| | - Alannah K A McKay
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - Nicolin Tee
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - Kathryn E Ackerman
- Divisions of Sports Medicine and Endocrinology, Boston Children's Hospital, Boston, MA, USA.,Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Louise M Burke
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
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Associations between physical physique/fitness in children and bone development during puberty: a 4-year longitudinal study. Sci Rep 2022; 12:13427. [PMID: 35927458 PMCID: PMC9352704 DOI: 10.1038/s41598-022-17623-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/28/2022] [Indexed: 11/24/2022] Open
Abstract
Bone growth is most remarkable during puberty. This study aimed to clarify the effects of physique and physical strength on bone mineral density and bone metabolism markers during puberty to help improve bone growth during puberty and prevent future osteoporosis. There were 277 pubertal participants (125 boys and 152 girls) in this survey from 2009 to 2015, all aged 10/11 and 14/15 years. The measures included physical fitness/physique indices (such as muscle ratio etc.), grip strength, bone density (osteo sono-assessment index, OSI), and bone metabolism markers (bone-type alkaline phosphatase and type I collagen cross-linked N-telopeptide). At 10/11-years-old for girls, a positive correlation was found between body size/grip strength and OSI. At 14/15-year-old for boys, all body size factors/grip strength were positively correlated with OSI. The change in body muscle ratio was positively correlated with change in OSI for both sexes. The height, body muscle ratio and grip strength at 10/11-year-old were significantly associated with OSI (positively) and bone metabolism markers (negatively) at 14/15-year-old for both sexes. Adequate physique building after 10/11 years for boys and before 10/11 years for girls may be effective in increasing peak bone mass.
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Doi M, Chiba K, Okazaki N, Kondo C, Yamada S, Yokota K, Yonekura A, Tomita M, Osaki M. Bone microstructure in healthy men measured by HR-pQCT: Age-related changes and their relationships with DXA parameters and biochemical markers. Bone 2022; 154:116252. [PMID: 34743043 DOI: 10.1016/j.bone.2021.116252] [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: 05/15/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 01/22/2023]
Abstract
OBJECTIVE The primary purpose of this cross-sectional study was to investigate the characteristics of age-related changes in bone microstructure on high-resolution peripheral quantitative computed tomography (HR-pQCT), areal bone mineral density (aBMD) on dual-energy X-ray absorptiometry (DXA), and bone-related biochemical markers in men. The secondary purpose of this study was to examine how bone microstructure is related to aBMD and biochemical markers. METHODS The subjects were 128 healthy Japanese men (20-97 years old). Bone microstructure was measured in the distal radius and tibia using second-generation HR-pQCT; aBMD in the proximal femur and lumbar spine was measured with DXA; and tartrate-resistant acid phosphatase-5b (TRACP-5b), type I procollagen-N-propeptide (P1NP), 25(OH) vitamin D, and pentosidine concentrations were measured by blood tests. RESULTS In trabecular bone, the trabecular volumetric BMD (Tb.vBMD) and trabecular number (Tb.N) were lower with age (r = -0.23, -0.35) (r = -0.36,-0.33), and trabecular separation (Tb.Sp) and the star volume of marrow space (V*ms) were higher with age (r = 0.29, 0.41) (r = 0.34, 0.38) in both the radius and tibia. In cortical bone, cortical volumetric BMD (Ct.vBMD) was lower with age (r = -0.25, -0.52), and cortical porosity (Ct.Po) was higher with age (r = 0.67, 0.62) in both the radius and tibia. In the tibia, cortical thickness (Ct.Th) and cortical area (Ct.Ar) were lower with age (r = -0.40) (r = -0.43), whereas, in the radius, they were maintained, and periosteal perimeter (Ct.Pm) was higher with age (r = 0.35). aBMD in the proximal femur and P1NP were lower, and pentosidine was higher with increased age, whereas aBMD in the lumbar spine, TRACP-5b, and 25(OH) vitamin D had no relationships with age. DXA and HR-pQCT showed strong correlations particularly with femoral aBMD and tibial Tb.vBMD and Ct.Ar (r = 0.61) (r = 0.61), whereas no DXA parameters were related with Ct.Po. In correlations between biochemical markers and HR-pQCT, TRACP-5b and total P1NP were negatively correlated with Ct.vBMD (r = -0.31) (r = -0.35), but almost no other correlations were seen. CONCLUSIONS Age-related changes of the bone microstructure in men were characterized by decreases in trabecular and cortical vBMD associated with decreased trabecular number, cavitation of the trabecular structure, and increased cortical porosity. Femoral aBMD was strongly related to bone microstructure in the tibia, whereas both lumbar aBMD and femoral aBMD were not related to Ct.Po, and biochemical markers showed almost no relationships with bone microstructure.
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Affiliation(s)
- Mitsuru Doi
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Ko Chiba
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences.
| | - Narihiro Okazaki
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Choko Kondo
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Shuta Yamada
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Kazuaki Yokota
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Akihiko Yonekura
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Masato Tomita
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
| | - Makoto Osaki
- Department of Orthopedic Surgery, Nagasaki University Graduate School of Biomedical Sciences
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Stunes AK, Brobakken CL, Sujan MAJ, Aagård N, Brevig MS, Wang E, Syversen U, Mosti MP. Acute Effects of Strength and Endurance Training on Bone Turnover Markers in Young Adults and Elderly Men. Front Endocrinol (Lausanne) 2022; 13:915241. [PMID: 35846315 PMCID: PMC9279869 DOI: 10.3389/fendo.2022.915241] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
CONTEXT Exercise is recognized as an important strategy to prevent bone loss, but its acute effects on bone turnover markers (BTMs) and related markers remain uncertain. OBJECTIVE To assess the acute effects of two different exercise modes on BTMs and related markers in young adults of both sexes and elderly men. DESIGN SETTING PARTICIPANTS This was a three-group crossover within-subjects design study with a total of 53 participants-19 young women (aged 22-30), 20 young men (aged 21-30 years), and 14 elderly men (aged 63-74 years)-performing two different exercise sessions [strength training (ST) and high-intensity interval training (HIIT)] separated by 2 weeks, in a supervised laboratory setting. MAIN OUTCOME MEASURES Plasma volume-corrected serum measurements of the BTMs C-terminal telopeptide of type 1 collagen (CTX-I) and procollagen of type 1 N-terminal propeptide (P1NP), total osteocalcin (OC), sclerostin, and lipocalin-2 (LCN2) at baseline, immediately after, and 3 and 24 h after each of the two exercise modes were performed. RESULTS AND CONCLUSION Analyses revealed sex- and age-dependent differences in BTMs and related bone markers at baseline and time-, sex-, and age-dependent differences in response to exercise. No differences between exercise modes were observed for BTM response except for sclerostin in young men and LCN2 in elderly men. An acute, transient, and uniform increase in P1NP/CTX-1 ratio was found in young participants, demonstrating that beneficial skeletal effects on bone metabolism can be attained through both aerobic endurance and resistance exercise, although this effect seems to be attenuated with age. The acute effects of exercise on bone-related biomarkers were generally blunted after 24 h, suggesting that persistent alterations following prolonged exercise interventions should be assessed at later time points.
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Affiliation(s)
- Astrid Kamilla Stunes
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Medical Clinic, St. Olavs University Hospital, Trondheim, Norway
- *Correspondence: Astrid Kamilla Stunes, orcid.org/0000-0003-1074-5199
| | - Cathrine Langlie Brobakken
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Myworkout, Medical Rehabilitation Clinic, Trondheim, Norway
| | - Md Abu Jafar Sujan
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Norun Aagård
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Myworkout, Medical Rehabilitation Clinic, Trondheim, Norway
| | - Martin Siksjø Brevig
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Eivind Wang
- Faculty of Health and Social Sciences, Molde University College, Molde, Norway
- Department of Psychosis and Rehabilitation, Psychiatry Clinic, St. Olavs University Hospital, Trondheim, Norway
| | - Unni Syversen
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Endocrinology, St. Olavs University Hospital, Trondheim, Norway
| | - Mats Peder Mosti
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Medical Clinic, St. Olavs University Hospital, Trondheim, Norway
- Department of Research and Development, Clinic of Substance Use and Addiction Medicine, St. Olavs University Hospital, Trondheim, Norway
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Pimentel DV, Suttkus A, Vogel M, Lacher M, Jurkutat A, Poulain T, Ceglarek U, Kratzsch J, Kiess W, Körner A, Mayer S. Effect of physical activity and BMI SDS on bone metabolism in children and adolescents. Bone 2021; 153:116131. [PMID: 34314901 DOI: 10.1016/j.bone.2021.116131] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 07/13/2021] [Accepted: 07/22/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Children with obesity are known to have reduced bone density and are at a higher risk for fractures. This may be caused by decreased physical activity or a metabolic phenomenon. In this study, we evaluated associations of physical activity with bone metabolism in children and adolescents with and without obesity. METHODS Results from 574 visits of 397 subjects, 191 girls and 206 boys aged five to 18 years (mean: 11.7 ± 2.8) representing 180 children with (mean BMI SDS 2.5 ± 0.4) and 217 without obesity (mean BMI SDS 0.2 ± 1.0) from the LIFE Child study, a population-based cohort of children/adolescents with normal weight and with obesity were analyzed for the impact of their daily physical activity (MET/day, SenseWear Accelerometer) on serum SDS levels for bone formation (alkaline phosphatase, osteocalcin, procollagen type I N propeptide [P1NP]), bone resorption (beta-crosslaps), and calcium homeostasis (parathormone, OH-25-vitamin D) by a linear regression model adjusted for gender- and age-based differences. RESULTS For male subjects, BMI SDS significantly influenced the association of physical activity to PTH, vitamin D, and beta-crosslaps SDS levels. A higher physical activity was accompanied by increased PTH but decreased vitamin D SDS levels in children with normal weight. In males with obesity, all levels remained unaltered. In females, BMI SDS significantly impacted the association of physical activity to PTH, vitamin D, P1NP, beta-crosslaps, and osteocalcin SDS levels. In females with obesity, higher physical activity was related to higher SDS levels of vitamin D, P1NP, and beta-crosslaps. In contrast, in normal weight females, only PTH SDS was higher. CONCLUSIONS The effect of daily physical activity on bone metabolic markers and calciotropic hormones depends significantly on gender and BMI SDS. However, higher levels of physical activity were associated with increased bone turnover for female subjects with obesity only. Thus, motivating especially girls with obesity to be physically active may help improve their bone health.
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Affiliation(s)
| | - Anne Suttkus
- Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany
| | - Mandy Vogel
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Medical Faculty, Leipzig, Germany
| | - Martin Lacher
- Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany
| | - Anne Jurkutat
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Medical Faculty, Leipzig, Germany
| | - Tanja Poulain
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Medical Faculty, Leipzig, Germany
| | - Uta Ceglarek
- Institute for Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics (ILM), University of Leipzig, Leipzig, Germany
| | - Jürgen Kratzsch
- Institute for Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics (ILM), University of Leipzig, Leipzig, Germany
| | - Wieland Kiess
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Medical Faculty, Leipzig, Germany; Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Leipzig, Germany
| | - Antje Körner
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Medical Faculty, Leipzig, Germany; Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Leipzig, Germany
| | - Steffi Mayer
- Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany.
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Zou Y, Liu Z, Li H, Hou L, Pang J, Liu X, Zejipuchi, Tian L, Zhang Q, Ma C, Yu S, Wang D, Guo X, Cheng X, Yang H, Qiu L. Evaluation of bone metabolism-associated biomarkers in Tibet, China. J Clin Lab Anal 2021; 35:e24068. [PMID: 34699640 PMCID: PMC8649332 DOI: 10.1002/jcla.24068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 11/26/2022] Open
Abstract
Aim To measure and evaluate the distribution and possible contributing factors of seven bone metabolism‐associated biomarkers in Tibet, a plateau province of China. Methods A total of 1615 individuals were recruited from Tibet at three different altitudes. The levels and possible contributing factors of serum calcium, serum phosphorus, ALP, 25OHD, PINP, CTX, and PTH were evaluated. Results In total, 1246 Tibetan adults (males: n = 543) were eventually enrolled in this study. Multiple linear regression recognized age, sex, altitude, and BMI as the major effect factors. The levels of ALP, PINP, and CTX in males continuously decreased with age; however, those in females increased after approximately 39 years of age. Males had higher 25OHD levels (23.9 vs. 15.4 ng/ml) but lower levels of serum phosphorus (1.12 vs. 1.19 mmol/L) and PTH (41.3 vs. 47.4 pg/ml) than females. Before the age of 50, males had higher levels of calcium, ALP, PINP, and CTX than females, and the opposite trend was observed after the age of 50. The highest levels of serum calcium and phosphorus and the lowest levels of PINP and CTX were found in the Shigatse/Lhasa region, suggesting a better bone metabolism status. Compared with reports from plain areas of China, significantly higher levels of PINP (65.3 vs. 49.36 ng/ml) and CTX (0.46 vs. 0.37 ng/ml) were recorded in Tibetan adults. Conclusion A more active bone turnover status was found in Tibetan adults than in individuals from the plain areas of China.
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Affiliation(s)
- Yutong Zou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Zhijuan Liu
- Department of Laboratory Medicine, People's Hospital of Tibet Autonomous Region, Tibet Lhasa, China
| | - Honglei Li
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Li'an Hou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Jinrong Pang
- Department of Laboratory Medicine, People's Hospital of Tibet Autonomous Region, Tibet Lhasa, China
| | - Xiaoxing Liu
- Department of Laboratory Medicine, Ali District People's Hospital, Tibet Ali, China
| | - Zejipuchi
- Department of Laboratory Medicine, Sang Zhu Zi District People's Hospital, Tibet, Shigatse City, China
| | - Liping Tian
- Department of Laboratory Medicine, Maternal and Child Health Hospital, Tibet City, China
| | - Qi Zhang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Chaochao Ma
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Songlin Yu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Danchen Wang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Xiuzhi Guo
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Xinqi Cheng
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Hongyan Yang
- Department of Laboratory Medicine, People's Hospital of Tibet Autonomous Region, Tibet Lhasa, China
| | - Ling Qiu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China.,State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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10
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Singleton RC, Pharr GM, Nyman JS. Increased tissue-level storage modulus and hardness with age in male cortical bone and its association with decreased fracture toughness. Bone 2021; 148:115949. [PMID: 33862261 PMCID: PMC8102428 DOI: 10.1016/j.bone.2021.115949] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 11/19/2022]
Abstract
The incidence of bone fracture increases with age, due to both declining bone quantity and quality. Toward the goal of an improved understanding of the causes of the age-related decline in the fracture toughness of male cortical bone, nanoindentation experiments were performed on femoral diaphysis specimens from men aged 21-98 years. Because aged bone has less matrix-bound water and dry bone is less viscoelastic, we used a nanoindentation method that is sensitive to changes in viscoelasticity. Given the anisotropy of bone stiffness, longitudinal (n = 26) and transverse (n = 25) specimens relative to the long axis of the femur diaphysis were tested both dry in air and immersed in phosphate buffered saline solution. Indentation stiffness (storage modulus) and hardness increased with age, while viscoelasticity (loss modulus) was independent of donor age. The increases in indentation stiffness and hardness with age were best explained by increased mineralization with age. Indentation stiffness and hardness were negatively correlated with previously acquired fracture toughness parameters, which is consistent with a tradeoff between material strength and toughness. In keeping with the complex structure of bone, a combination of tissue-level storage modulus or hardness, bound water, and osteonal area in regression models best explained the variance in the fracture toughness of male human cortical bone. On the other hand, viscoelasticity was unchanged with age and was not associated with fracture toughness. In conclusion, the age-related increase in stiffness and hardness of male cortical bone may be one of the multiple tissue-level characteristics that contributes to decreased fracture toughness.
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Affiliation(s)
- Robert C Singleton
- Materials Science and Engineering Department, University of Tennessee, Knoxville, TN 37996, USA
| | - George M Pharr
- Materials Science and Engineering Department, University of Tennessee, Knoxville, TN 37996, USA; Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843-3003, USA
| | - Jeffry S Nyman
- Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA.
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11
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Pal R, Aggarwal A, Sachdeva N, Ram S, Garg A, Bhansali A, Bhadada SK. Age- and sex-specific concentrations of bone remodeling markers in healthy Indian adults with and without vitamin D deficiency. Arch Osteoporos 2021; 16:10. [PMID: 33415509 DOI: 10.1007/s11657-020-00855-9] [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: 05/26/2020] [Accepted: 11/09/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED Bone remodeling markers exhibit marked inter-ethnic variation; hence, population-specific data are required. Herein, we have established age- and sex-specific concentrations of serum PINP and CTX in healthy Indian adults with and without vitamin D deficiency that can be used in clinical practice for monitoring response to anti-osteoporotic therapy. OBJECTIVE The present study was undertaken to generate data on age- and sex-specific concentrations of serum procollagen type I N-propeptide (PINP) and type I collagen C-telopeptide (CTX) in healthy Indian adults with and without vitamin D deficiency. METHODS Apparently, healthy subjects aged ≥ 20 years with no prior co-morbidities were recruited from the community by door-to-door surveys. Provisionally eligible participants underwent blood sampling after overnight fast. Individuals with biochemical abnormalities that could potentially affect bone remodeling were excluded. However, subjects with vitamin D deficiency were not excluded. Serum total PINP and β-CrossLaps (CTX) were measured using electro-chemiluminescence immunoassay. RESULTS After exclusion, 677 subjects were enrolled (M:F = 2.5:4.2, mean age = 45.0 years). Median serum PINP and CTX were 55.78 ng/ml (40.27-71.70) and 0.356 ng/ml (0.238-0.499), respectively. There was no difference in PINP/CTX between men and women or between premenopausal and postmenopausal women. Decade-wise distribution of PINP/CTX showed that maximum values were attained in 3rd decade; subsequently, in men, levels declined with age while in women, there was a peak in the 6th decade coinciding with the early years of menopause. Vitamin D deficiency and severe vitamin D deficiency were seen in 417 (61.5%) and 259 subjects (38.2%), respectively. There was no significant difference in PINP/CTX in subjects with and without vitamin D deficiency. CONCLUSIONS The present study has allowed us to generate data on serum concentrations of PINP/CTX in a diverse group of healthy community-dwelling Indian adults with varying serum vitamin D levels. It might aid in monitoring response to anti-osteoporotic therapy amongst native Indians.
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Affiliation(s)
- Rimesh Pal
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Anshita Aggarwal
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Naresh Sachdeva
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Sant Ram
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Abhilasha Garg
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Anil Bhansali
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Sanjay Kumar Bhadada
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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12
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Yao Z, Murali B, Ren Q, Luo X, Faget DV, Cole T, Ricci B, Thotala D, Monahan J, van Deursen JM, Baker D, Faccio R, Schwarz JK, Stewart SA. Therapy-Induced Senescence Drives Bone Loss. Cancer Res 2020; 80:1171-1182. [PMID: 31932453 PMCID: PMC7056549 DOI: 10.1158/0008-5472.can-19-2348] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/14/2019] [Accepted: 12/23/2019] [Indexed: 02/01/2023]
Abstract
Chemotherapy is important for cancer treatment, however, toxicities limit its use. While great strides have been made to ameliorate the acute toxicities induced by chemotherapy, long-term comorbidities including bone loss remain a significant problem. Chemotherapy-driven estrogen loss is postulated to drive bone loss, but significant data suggests the existence of an estrogen-independent mechanism of bone loss. Using clinically relevant mouse models, we showed that senescence and its senescence-associated secretory phenotype (SASP) contribute to chemotherapy-induced bone loss that can be rescued by depleting senescent cells. Chemotherapy-induced SASP could be limited by targeting the p38MAPK-MK2 pathway, which resulted in preservation of bone integrity in chemotherapy-treated mice. These results transform our understanding of chemotherapy-induced bone loss by identifying senescent cells as major drivers of bone loss and the p38MAPK-MK2 axis as a putative therapeutic target that can preserve bone and improve a cancer survivor's quality of life. SIGNIFICANCE: Senescence drives chemotherapy-induced bone loss that is rescued by p38MAPK or MK2 inhibitors. These findings may lead to treatments for therapy-induced bone loss, significantly increasing quality of life for cancer survivors.
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Affiliation(s)
- Zhangting Yao
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Bhavna Murali
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Qihao Ren
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Xianmin Luo
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Douglas V Faget
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Tom Cole
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri
| | - Biancamaria Ricci
- Department of Orthopaedics, Washington University School of Medicine, St. Louis, Missouri
| | - Dinesh Thotala
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | | | - Jan M van Deursen
- Department of Biochemistry and Molecular Biology and Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
| | - Darren Baker
- Department of Biochemistry and Molecular Biology and Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
| | - Roberta Faccio
- Department of Orthopaedics, Washington University School of Medicine, St. Louis, Missouri
- Shriners Hospital for Children, St. Louis, Missouri
| | - Julie K Schwarz
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Sheila A Stewart
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri.
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri
- ICCE Institute, Washington University School of Medicine, St. Louis, Missouri
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13
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Effects of age and sex on osteocalcin and bone-specific alkaline phosphatase-reference intervals and confounders for two bone formation markers. Arch Osteoporos 2020; 15:26. [PMID: 32095898 DOI: 10.1007/s11657-020-00715-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/10/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED Bone formation markers bone-specific alkaline phosphatase and osteocalcin are used in many clinical situations. Therefore, we calculated reference intervals for the two markers and investigated how they are influenced by several factors including sex and age. Furthermore, we established clinically relevant reference intervals for the two markers. OBJECTIVE The bone turnover markers (BTMs), bone-specific alkaline phosphatase (bone ALP), and osteocalcin (OC), are frequently measured formation markers. The purpose of this study was to establish reference intervals (RIs) for the two BTMs in a general adult Danish population. METHODS Bone ALP and OC were measured on the iSYS (IDS Plc) automatic analyzer in samples from the Danish Health2006 5-year follow-up study on serum from 2308 participants (54% women, age range 24-76). Participants with self-reported diagnosis of osteoporosis or receiving hormonal replacement were excluded from analyses while participants on hormonal contraceptives were included. RESULTS The geometric mean and 95%RI for bone ALP were 13.9 μg/L (7.6-25.6) for men and 13.8 μg/L (7.0-27.4) for women, while for OC 16.0 μg/L (7.5-34.4) for men and 18.6 μg/L (8.1-42.9) for women. Levels of bone ALP increased with increasing age (β 1.004, p < 0.001), while female sex had no effect. OC levels decreased with increasing age (β 0.998, p = 0.009) and increased with female sex (β 1.104, p < 0.001). Based on our findings, we propose for bone ALP and OC three clinical RIs for men based on age and three clinical RI for women based on age and menopausal status. CONCLUSION The RI for bone ALP and OC varies with age and sex and the BTMs are influenced differently by the two factors. Consequently, the need for establishing valid RIs is of great importance before the full potential of BTM can be used in clinical practice.
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14
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Smith C, Voisin S, Al Saedi A, Phu S, Brennan-Speranza T, Parker L, Eynon N, Hiam D, Yan X, Scott D, Blekkenhorst LC, Lewis JR, Seeman E, Byrnes E, Flicker L, Duque G, Yeap BB, Levinger I. Osteocalcin and its forms across the lifespan in adult men. Bone 2020; 130:115085. [PMID: 31622778 DOI: 10.1016/j.bone.2019.115085] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE Osteocalcin (OC), an osteoblast-specific secreted protein expressed by mature osteoblasts, is used in clinical practice and in research as a marker of bone turnover. The carboxylated (cOC) and undercarboxylated (ucOC) forms may have a different biological function but age-specific reference ranges for these components are not established. Given the different physiological roles, development of reference ranges may help to identify people at risk for bone disease. METHODS Blood was collected in the morning after an overnight fast from 236 adult men (18 to 92 years old) free of diabetes, antiresorptive, warfarin or glucocorticoid use. Serum was analyzed for total osteocalcin (tOC) and the ucOC fraction using the hydroxyapatite binding method. cOC, ucOC/tOC and cOC/tOC ratios were calculated. Reference intervals were established by polynomial quantile regression analysis. RESULTS The normal ranges for young men (≤30 years) were: tOC 17.9-56.8 ng/mL, ucOC 7.1-22.0 ng/mL, cOC 8.51-40.3 ng/mL (2.5th to 97.5th quantiles). Aging was associated with a "U" shaped pattern for tOC, cOC and ucOC levels. ucOC/tOC ratio was higher, while cOC/tOC ratio was lower in men of advanced age. Age explained ∼31%, while body mass index explained ∼4%, of the variance in the ratios. CONCLUSIONS We have defined normal reference ranges for the OC forms in Australian men and demonstrated that the OC ratios may be better measures, than the absolute values, to identify the age-related changes on OC in men. These ratios may be incorporated into future research and clinical trials, and their associations with prediction of events, such as fracture or diabetes risk, should be determined.
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Affiliation(s)
- Cassandra Smith
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia
| | - Sarah Voisin
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
| | - Ahmed Al Saedi
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Steven Phu
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Tara Brennan-Speranza
- Department of Physiology and Bosch Institute for Medical Research, University of Sydney, New South Wales, Australia
| | - Lewan Parker
- Institute for Physical Activity and Nutrition (IPAN), Deakin University, Geelong, VIC, Australia
| | - Nir Eynon
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia; Murdoch Childrens Research Institute, Melbourne, Australia
| | - Danielle Hiam
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia
| | - David Scott
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; School of Clinical Sciences at Monash Health, Monash University, Melbourne, VIC, Australia
| | - Lauren C Blekkenhorst
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia; Medical School, University of Western Australia, Perth, Australia
| | - Joshua R Lewis
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia; Medical School, University of Western Australia, Perth, Australia; Centre for Kidney Research, Children's Hospital at Westmead School of Public Health, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - Ego Seeman
- University of Melbourne and the Department of Endocrinology, Austin Health and the Mary Mackillop Institute of Healthy Aging, Australian Catholic University, Melbourne, Australia
| | - Elizabeth Byrnes
- Department of Biochemistry, PathWest Laboratory Medicine, Queen Elizabeth II Medical Centre, Perth, Australia
| | - Leon Flicker
- Medical School, University of Western Australia, Perth, Australia; Western Australian Centre for Health & Ageing, University of Western Australia, Perth, Australia
| | - Gustavo Duque
- Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia
| | - Bu B Yeap
- Medical School, University of Western Australia, Perth, Australia; Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, Australia
| | - Itamar Levinger
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia; Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia; Department of Medicine-Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, VIC, Australia.
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15
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Liu XX, Jiang L, Liu Q, Zhang J, Niu W, Liu J, Zhang Q. Low Bone Turnover Markers in Young and Middle-Aged Male Patients with Type 2 Diabetes Mellitus. J Diabetes Res 2020; 2020:6191468. [PMID: 32851096 PMCID: PMC7436354 DOI: 10.1155/2020/6191468] [Citation(s) in RCA: 14] [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: 04/27/2020] [Revised: 07/10/2020] [Accepted: 07/28/2020] [Indexed: 12/19/2022] Open
Abstract
Accumulating evidence has supported an increased risk of osteoporotic fracture in postmenopausal women and elderly men diagnosed with diabetes mellitus. However, it is not uncommon for young and middle-aged male patients diagnosed with type 2 diabetes mellitus (T2DM) to suffer from osteopenia or osteoporosis. Few studies focused on this population group are available. The aim of this study is to evaluate bone metabolic status and investigate the influence of T2DM on bone metabolism in 30-50-year-old men. Anthropometric assessment and blood samples were obtained from 160 patients with T2DM and 69 nondiabetic volunteers. Serum parathyroid hormone (PTH) and bone turnover markers (BTMs), including serum procollagen type I N-terminal peptide (PINP), osteocalcin (OC), and β-cross-linked C-telopeptide of type I collagen (β-CTX), were analysed. No significant differences were observed based on age, body mass index, systolic blood pressure, serum calcium, phosphorus, creatinine, total protein, and albumin levels when comparing T2DM and control groups. Fasting blood glucose, HbA1c, triglyceride (TG), total cholesterol, and low-density lipoprotein cholesterol were significantly increased, while high-density lipoprotein cholesterol was significantly decreased in the T2DM group. Compared with controls, diabetic patients showed lower serum PINP, OC, and PTH levels, whereas serum β-CTX levels were similar between the two groups. Moreover, HbA1c levels were positively correlated with PINP and inversely associated with PTH levels. TG levels were negatively correlated with OC or β-CTX levels. Furthermore, multiple linear regression revealed a positive correlation between HbA1c and PINP levels. These results also revealed a negative association between HbA1c and PTH, and between TG and OC levels, even after adjusting for expected confounder factors. Collectively, these findings indicated that young and middle-aged male patients with T2DM showed a lower turnover state resulting from bone formation inhibition. Glucose and lipid metabolic disorders may affect bone formation through different pathways.
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Affiliation(s)
- X. X. Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - L. Jiang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Q. Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - J. Zhang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - W. Niu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - J. Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Q. Zhang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
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16
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Wu Y, Fan Z, Jin H, Guan Q, Zhou M, Lu X, Li L, Yan W, Gu C, Chen C, Han W. Assessment of Bone Metabolism in Male Patients With Benign Paroxysmal Positional Vertigo. Front Neurol 2018; 9:742. [PMID: 30233488 PMCID: PMC6135048 DOI: 10.3389/fneur.2018.00742] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 08/16/2018] [Indexed: 11/13/2022] Open
Abstract
Objective: Several studies have suggested a probable association between benign paroxysmal positional vertigo (BPPV) and both reduction of bone mineral density (BMD) and serum vitamin D levels, but none of these studies have explored their findings by examining bone turnover markers (BTM) in male idiopathic BPPV patients. This study aimed to evaluate the relationship between BMD and serum 25-hydroxyvitamin D (25(OH) D), with the occurrence of BPPV along with the characteristics of bone metabolism in male idiopathic BPPV patients. Methods: This retrospective study comprised 60 male idiopathic BPPV patients and 92 age-matched healthy controls referred to Ningbo No.2 Hospital during the period of February 2016 to February 2018. All subjects' serum levels of 25(OH) D, bone formation marker amino-terminal propeptide of type I procollagen (PINP), and bone resorption marker β-isomerized carboxy-terminal telopeptide of type I collagen (β-CTX) were measured. BMD was determined by dual energy X-ray absorption at the lumbar spine and hip. Results: Among male patients with BPPV, the prevalence of BMD reduction was 35.0%, which was similar to that of 27.2% in healthy controls. There were significant differences in the mean serum 25(OH) D level and prevalence of vitamin D deficiency between the two groups, with p-values of 0.049 and 0.009, respectively. The bone turnover markers of PINP and β-CTX in BPPV patients were lower than those in healthy controls. Logistic regression showed that vitamin D deficiency were associated with BPPV with an odds ratio of 3.8 (95% confidence interval = 1.25-11.73). Conclusion: Our study found that decreased serum vitamin D may be a risk factor for BPPV in male patients. The level of bone turnover among male patients with BPPV was lower than that among healthy controls.
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Affiliation(s)
- Yunqin Wu
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Zhenyi Fan
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Hang Jin
- Department of Neurology, First Hospital of Jilin University, Changchun, China
| | - Qiongfeng Guan
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Min Zhou
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Xiaoxiong Lu
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Li Li
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Wang Yan
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Chengyao Gu
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Caijing Chen
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China
| | - Weiwei Han
- Department of Neurology, Ningbo No. 2 Hospital, Ningbo, China.,Department of Rehabilitation, Ningbo No. 2 Hospital, Ningbo, China
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17
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Glendenning P, Chubb SP, Vasikaran S. Clinical utility of bone turnover markers in the management of common metabolic bone diseases in adults. Clin Chim Acta 2018; 481:161-170. [DOI: 10.1016/j.cca.2018.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/08/2018] [Accepted: 03/10/2018] [Indexed: 10/17/2022]
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18
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Nishimura T, Arima K, Abe Y, Kanagae M, Mizukami S, Okabe T, Tomita Y, Goto H, Horiguchi I, Aoyagi K. Relationship between bone turnover markers and the heel stiffness index measured by quantitative ultrasound in middle-aged and elderly Japanese men. Medicine (Baltimore) 2018; 97:e9962. [PMID: 29465590 PMCID: PMC5842002 DOI: 10.1097/md.0000000000009962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The aim of the present study was to investigate the age-related patterns and the relationships between serum levels of tartrate-resistant acid phosphatase-5b (TRACP-5b) or bone-specific alkaline phosphatase (BAP), and the heel stiffness index measured by quantitative ultrasound (QUS) in 429 Japanese men, with special emphasis on 2 age groups (40-59 years and 60 years or over). The heel stiffness index (bone mass) was measured by QUS. Serum samples were collected, and TRACP-5b and BAP levels were measured. The stiffness index was significantly decreased with age. Log (TRACP-5b) was significantly increased with age, but Log (BAP) was stable. Generalized linear models showed that higher levels of Log (TRACP-5b) and Log (BAP) were correlated with a lower stiffness index after adjusting for covariates in men aged 60 years or over, but not in men aged 40 to 59 years. In conclusion, higher rates of bone turnover markers were associated with a lower stiffness index only in elderly men. These results may indicate a different mechanism of low bone mass among different age groups of men.
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Affiliation(s)
- Takayuki Nishimura
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto
| | - Kazuhiko Arima
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto
| | - Yasuyo Abe
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto
| | - Mitsuo Kanagae
- Department of Rehabilitation, Nishi-Isahaya Hospital, Kaizumachi
| | - Satoshi Mizukami
- Department of Rehabilitation, Nishi-Isahaya Hospital, Kaizumachi
| | - Takuhiro Okabe
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto
- Department of Rehabilitation, Nishi-Isahaya Hospital, Kaizumachi
| | - Yoshihito Tomita
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto
- Department of Rehabilitation, Nishi-Isahaya Hospital, Kaizumachi
| | | | - Itsuko Horiguchi
- Center for Public Relations Strategy, Nagasaki University, Bunkyoumachi, Nagasaki, Japan
| | - Kiyoshi Aoyagi
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto
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19
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Szulc P, Naylor K, Hoyle NR, Eastell R, Leary ET. Use of CTX-I and PINP as bone turnover markers: National Bone Health Alliance recommendations to standardize sample handling and patient preparation to reduce pre-analytical variability. Osteoporos Int 2017. [PMID: 28631236 DOI: 10.1007/s00198-017-4082-4] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
UNLABELLED The National Bone Health Alliance (NBHA) recommends standardized sample handling and patient preparation for C-terminal telopeptide of type I collagen (CTX-I) and N-terminal propeptide of type I procollagen (PINP) measurements to reduce pre-analytical variability. Controllable and uncontrollable patient-related factors are reviewed to facilitate interpretation and minimize pre-analytical variability. INTRODUCTION The IOF and the International Federation of Clinical Chemistry (IFCC) Bone Marker Standards Working Group have identified PINP and CTX-I in blood to be the reference markers of bone turnover for the fracture risk prediction and monitoring of osteoporosis treatment. Although used in clinical research for many years, bone turnover markers (BTM) have not been widely adopted in clinical practice primarily due to their poor within-subject and between-lab reproducibility. The NBHA Bone Turnover Marker Project team aim to reduce pre-analytical variability of CTX-I and PINP measurements through standardized sample handling and patient preparation. METHODS Recommendations for sample handling and patient preparations were made based on review of available publications and pragmatic considerations to reduce pre-analytical variability. Controllable and un-controllable patient-related factors were reviewed to facilitate interpretation and sample collection. RESULTS Samples for CTX-I must be collected consistently in the morning hours in the fasted state. EDTA plasma is preferred for CTX-I for its greater sample stability. Sample collection conditions for PINP are less critical as PINP has minimal circadian variability and is not affected by food intake. Sample stability limits should be observed. The uncontrollable aspects (age, sex, pregnancy, immobility, recent fracture, co-morbidities, anti-osteoporotic drugs, other medications) should be considered in BTM interpretation. CONCLUSION Adopting standardized sample handling and patient preparation procedures will significantly reduce controllable pre-analytical variability. The successful adoption of such recommendations necessitates the close collaboration of various stakeholders at the global stage, including the laboratories, the medical community, the reagent manufacturers and the regulatory agencies.
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Affiliation(s)
- P Szulc
- INSERM UMR 1033, Hôpital Edouard Herriot, University of Lyon, Pavillon F, Place d'Arsonval, 69437, Lyon, France.
| | - K Naylor
- Academic Unit of Bone Metabolism and Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | | | - R Eastell
- Academic Unit of Bone Metabolism and Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | - E T Leary
- ETL Consulting, Seattle, WA, 98177, USA
- Pacific Biomarkers, Seattle, WA, 98119, USA
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Serum Osteocalcin and Testosterone Concentrations in Adult Males with or without Primary Osteoporosis: A Meta-Analysis. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9892048. [PMID: 28831400 PMCID: PMC5558632 DOI: 10.1155/2017/9892048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 06/29/2017] [Accepted: 07/02/2017] [Indexed: 01/01/2023]
Abstract
Osteocalcin (Ocn) and testosterone play important roles in male skeleton. However, the concentrations of serum osteocalcin and testosterone have never been systematically compared between populations with and without primary male osteoporosis, a common skeletal disorder in adult males. We searched the PubMed, Embase, and Cochrane Library for relevant studies. A meta-analysis was performed to compare the serum osteocalcin and testosterone concentrations between primary osteoporotic males and age-matched nonosteoporotic (non-OP) males. Five case-control studies with 300 adult males were included. We found no significant difference between cases and controls in serum total osteocalcin (TOcn) [95% confidence interval (CI): −1.25, 1.31; p = 0.96] and total testosterone (TT) concentrations [95% CI: −0.88, 4.22; p = 0.20]. The level of evidence of this carefully performed meta-analysis is 3a according to Oxford (UK) CEBM Levels of Evidence. Future well-designed studies with larger sample size and better standardization of Ocn assay are awaited to confirm and update our current findings.
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Community osteoporosis screening services for the prevention of osteoporotic fractures in population health. INT J EVID-BASED HEA 2017; 15:43-52. [DOI: 10.1097/xeb.0000000000000104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effects of Vitamin D Supplementation on Bone Turnover Markers: A Randomized Controlled Trial. Nutrients 2017; 9:nu9050432. [PMID: 28448457 PMCID: PMC5452162 DOI: 10.3390/nu9050432] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 04/08/2017] [Accepted: 04/25/2017] [Indexed: 01/12/2023] Open
Abstract
Bone turnover markers (BTMs) are used to evaluate bone health together with bone mineral density and fracture assessment. Vitamin D supplementation is widely used to prevent and treat musculoskeletal diseases but existing data on vitamin D effects on markers of bone resorption and formation are inconsistent. We therefore examined the effects of vitamin D supplementation on bone-specific alkaline phosphatase (bALP), osteocalcin (OC), C-terminal telopeptide (CTX), and procollagen type 1 N-terminal propeptide (P1NP). This is a post-hoc analysis of the Styrian Vitamin D Hypertension Trial, a single-center, double-blind, randomized, placebo-controlled trial (RCT) performed at the Medical University of Graz, Austria (2011-2014). Two hundred individuals with arterial hypertension and 25-hydroxyvitamin D (25[OH]D) levels <75 nmol/L were randomized to 2800 IU of vitamin D daily or placebo for eight weeks. One hundred ninety-seven participants (60.2 ± 11.1 years; 47% women) were included in this analysis. Vitamin D had no significant effect on bALP (mean treatment effect (MTE) 0.013, 95% CI -0.029 to 0.056 µg/L; p = 0.533), CTX (MTE 0.024, 95% CI -0.163 to 0.210 ng/mL, p = 0.802), OC (MTE 0.020, 95% CI -0.062 to 0.103 ng/mL, p = 0.626), or P1NP (MTE -0.021, 95% CI -0.099 to 0.057 ng/mL, p = 0.597). Analyzing patients with 25(OH)D levels <50 nmol/L separately (n = 74) left results largely unchanged. In hypertensive patients with low 25(OH)D levels, we observed no significant effect of vitamin D supplementation for eight weeks on BTMs.
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Nguyen VH. Osteoporosis prevention and osteoporosis exercise in community-based public health programs. Osteoporos Sarcopenia 2017; 3:18-31. [PMID: 30775499 PMCID: PMC6372810 DOI: 10.1016/j.afos.2016.11.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/14/2016] [Accepted: 11/21/2016] [Indexed: 01/26/2023] Open
Abstract
Osteoporosis is a serious public health concern worldwide, and community-based public health programs that increase osteoporosis preventive behaviors are ideal to combat this major public health issue. A review of community-based public health programs for osteoporosis prevention show that programs vary in numerous ways and have mixed results in increasing osteoporosis preventive behaviors, although most programs have had success in significantly increasing calcium intake, only a few programs have had success in significantly increasing weight-bearing exercise. Regarding calcium intake, all community-based public health programs that implemented: 1) at least one theoretical behavior change model, such as the health belief model, or 2) bone mineral density (BMD) testing for osteoporosis screening, have shown success in significantly increasing calcium intake. As community-based public health programs for osteoporosis prevention have shown limited success in increasing weight-bearing exercise, an additional review of community-based public health programs incorporating osteoporosis exercise showed that they have high compliance rates to increase weight-bearing exercise, but require high-intensity weight-bearing exercise of 80-85% 1-repetition maximum to significantly increase BMD to prevent osteoporosis. In the prevention of osteoporosis, for community-based public health programs to be most effective, they should implement theoretical behavior change models and/or BMD testing for osteoporosis screening, along with high-intensity resistance training. Recommendations for future research to further study effective community-based public health programs are also provided.
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Marques EA, Gudnason V, Sigurdsson G, Lang T, Johannesdottir F, Siggeirsdottir K, Launer L, Eiriksdottir G, Harris TB. Are bone turnover markers associated with volumetric bone density, size, and strength in older men and women? The AGES-Reykjavik study. Osteoporos Int 2016; 27:1765-76. [PMID: 26630978 PMCID: PMC5560050 DOI: 10.1007/s00198-015-3442-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/23/2015] [Indexed: 12/23/2022]
Abstract
UNLABELLED Association between serum bone formation and resorption markers and bone mineral, structural, and strength variables derived from quantitative computed tomography (QCT) in a population-based cohort of 1745 older adults was assessed. The association was weak for lumbar spine and femoral neck areal and volumetric bone mineral density. INTRODUCTION The aim of this study was to examine the relationship between levels of bone turnover markers (BTMs; osteocalcin (OC), C-terminal cross-linking telopeptide of type I collagen (CTX), and procollagen type 1N propeptide (P1NP)) and quantitative computed tomography (QCT)-derived bone density, geometry, and strength indices in the lumbar spine and femoral neck (FN). METHODS A total of 1745 older individuals (773 men and 972 women, aged 66-92 years) from the Age, Gene/Environment Susceptibility (AGES)-Reykjavik cohort were studied. QCT was performed in the lumbar spine and hip to estimate volumetric trabecular, cortical, and integral bone mineral density (BMD), areal BMD, bone geometry, and bone strength indices. Association between BTMs and QCT variables were explored using multivariable linear regression. RESULTS Major findings showed that all BMD measures, FN cortical index, and compressive strength had a low negative correlation with the BTM levels in both men and women. Correlations between BTMs and bone size parameters were minimal or not significant. No associations were found between BTMs and vertebral cross-sectional area in women. BTMs alone accounted for only a relatively small percentage of the bone parameter variance (1-10 %). CONCLUSION Serum CTX, OC, and P1NP were weakly correlated with lumbar spine and FN areal and volumetric BMD and strength measures. Most of the bone size indices were not associated with BTMs; thus, the selected bone remodeling markers do not reflect periosteal bone formation. These results confirmed the limited ability of the most sensitive established BTMs to predict bone structural integrity in older adults.
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Affiliation(s)
- E A Marques
- Laboratory of Epidemiology and Population Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, 7201 Wisconsin Ave, 3C-309 Gateway Building, Bethesda, MD, 20814, USA.
| | - V Gudnason
- Icelandic Heart Association Research Institute, Kópavogur, Iceland
- University of Iceland, Reykjavik, Iceland
| | - G Sigurdsson
- Icelandic Heart Association Research Institute, Kópavogur, Iceland
- University of Iceland, Reykjavik, Iceland
- Landspitalinn University Hospital, Reykjavik, Iceland
| | - T Lang
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | | | - K Siggeirsdottir
- Icelandic Heart Association Research Institute, Kópavogur, Iceland
| | - L Launer
- Laboratory of Epidemiology and Population Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, 7201 Wisconsin Ave, 3C-309 Gateway Building, Bethesda, MD, 20814, USA
| | - G Eiriksdottir
- Icelandic Heart Association Research Institute, Kópavogur, Iceland
| | - T B Harris
- Laboratory of Epidemiology and Population Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, 7201 Wisconsin Ave, 3C-309 Gateway Building, Bethesda, MD, 20814, USA
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Amaral Imbeloni A, Canevese Rahal S, da Silva Filho E, Mendonça Faria B, Bandeira da Silva W, Guimarães Oliveira K, Aihara ME, Barros Monteiro FO. Effect of age and sex on bone markers in Chlorocebus aethiops raised in captivity. J Med Primatol 2015; 45:3-11. [PMID: 26555766 DOI: 10.1111/jmp.12201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND The objective was to evaluate the procollagen type I N-propeptide (PINP), osteocalcin (OC), β-crosslaps (β-CTX), and parathyroid hormone (PTH) in relation to age and sex of Chlorocebus aethiops in captivity. METHODS Seventy-three monkeys were divided into four age groups: AG1 (juvenile); AG2 (young adult); AG3 (adult); and AG4 (senile). An electrochemiluminescence immunoassay with an Elecsys 2010 analyzer was used to determine the serum markers of bone. RESULTS AND CONCLUSIONS Sex did not influence the results of the markers. However, the variables PINP, OC, and β-CTX were negatively correlated with age (r = -0.643; r = -0.711; r = -0.488; P < 0.001, respectively), and PTH was correlated positively with age (r = 0.418, P < 0.001). The data obtained can be used as biomarkers of bone metabolism reference intervals in healthy C. aethiops in captivity.
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Affiliation(s)
- Aline Amaral Imbeloni
- Centro Nacional de Primatas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil.,Programa de Pós-graduação de Saúde e Produção Animal da Amazônia, Universidade Federal Rural da Amazônia, Belém, PA, Brazil
| | - Sheila Canevese Rahal
- Departamento de Cirurgia Veterinária e Anestesiologia da, Faculdade de Medicina Veterinária de Zootecnia, Universidade Estadual Paulista, Botucatu, SP, Brazil
| | - Ednaldo da Silva Filho
- Programa de Pós-graduação de Saúde e Produção Animal da Amazônia, Universidade Federal Rural da Amazônia, Belém, PA, Brazil
| | - Bianca Mendonça Faria
- Programa de Pós-graduação de Saúde e Produção Animal da Amazônia, Universidade Federal Rural da Amazônia, Belém, PA, Brazil
| | - Wellington Bandeira da Silva
- Centro Nacional de Primatas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil.,Programa de Pós-graduação de Saúde e Produção Animal da Amazônia, Universidade Federal Rural da Amazônia, Belém, PA, Brazil
| | - Karol Guimarães Oliveira
- Centro Nacional de Primatas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
| | - Mika Ester Aihara
- Centro Nacional de Primatas, Secretaria de Vigilância em Saúde, Ministério da Saúde, Ananindeua, PA, Brazil
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Nishimura T, Arima K, Abe Y, Kanagae M, Mizukami S, Okabe T, Tomita Y, Goto H, Horiguchi I, Aoyagi K. Relationship Between Urinary Cross-Linked N-Telopeptide of Type-I Collagen and Heel Stiffness Index Measured by Quantitative Ultrasound in Middle-Aged and Elderly Men. Medicine (Baltimore) 2015; 94:e1797. [PMID: 26554777 PMCID: PMC4915878 DOI: 10.1097/md.0000000000001797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of the present study was to investigate the age-related patterns and the relationship between levels of urinary cross-linked N-telopeptide of type-I collagen (NTx) and heel stiffness index measured by quantitative ultrasound (QUS) in men with a special reference to age groups of aged 40 to 59 years and ≥60 years.A total of 379 men participated in this study. Heel stiffness index (bone mass) was measured by QUS. Spot urine samples were collected, and urinary NTx was measured. The values were corrected for creatinine (Cre) concentration.Stiffness index was significantly lower in men aged ≥60 years compared with men aged 40 to 59 years (P < 0.0001). There was no significant difference of Log (NTx/Cre) by 10-year age groups. Multiple regression analysis showed that higher level of urinary NTx/Cre was significantly correlated with lower stiffness index after adjusting for age and body mass index in men aged ≥60 years, but not in men aged 40 to 59 years.Higher rates of bone resorption were associated with lower stiffness index only in elderly men. Our results may indicate a different mechanism of low bone mass among different age groups.
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Affiliation(s)
- Takayuki Nishimura
- From the Department of Public Health (TN, KA, YA, TO, YT, KA), Nagasaki University Graduate School of Biomedical Sciences, Nagasaki; Department of Rehabilitation (MK, SM, TO, YT), Nishi-Isahaya Hospital, Isahaya; Goto Health Care Office (HG), Nagasaki; and Center for Public Relations Strategy (IH), Nagasaki University, Nagasaki, Japan
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Nguyen VH. Osteoporosis-preventive behaviors and their promotion for young men. BONEKEY REPORTS 2015; 4:729. [PMID: 26331008 PMCID: PMC4549922 DOI: 10.1038/bonekey.2015.98] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 05/08/2015] [Indexed: 11/09/2022]
Abstract
Osteoporosis in men is a major and neglected public health issue. An experimental study with a sample of 37 young men tested an osteoporosis prevention education intervention to alter osteoporosis health beliefs and to increase osteoporosis-preventive behaviors, in order to determine effectiveness and make public health recommendations. After pretest, control and treatment interventions were administered, with the administration of a posttest 2 weeks later. For all osteoporosis health beliefs and osteoporosis-preventive behaviors measured, no group and time interaction was found to be statistically significant. Both groups had low perceived susceptibility to osteoporosis, low to moderate perceived severity of osteoporosis, high perceived benefits of exercise and calcium to prevent osteoporosis, low perceived barriers to exercise and calcium, and moderate to high levels of confidence in self-efficacy for exercise and calcium. Bouts of exercise per week were adequate; however, consumption of good sources of calcium per day appeared to be low. More research is needed for the promotion of osteoporosis prevention in men. Recommendations promoting preventive behaviors for men have been provided.
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Affiliation(s)
- Vu H Nguyen
- Department of Health Sciences, School of Health Professions, Public Health Program, University of Missouri, Columbia, MO, USA
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Gielen E, O'Neill T, Pye S, Adams J, Ward K, Wu F, Laurent M, Claessens F, Boonen S, Vanderschueren D, Verschueren S. Bone turnover markers predict hip bone loss in elderly European men: results of the European Male Ageing Study (EMAS). Osteoporos Int 2015; 26:617-27. [PMID: 25224294 DOI: 10.1007/s00198-014-2884-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 09/03/2014] [Indexed: 12/19/2022]
Abstract
SUMMARY The aim of this study was to determine whether bone turnover markers (BTMs) predict changes in areal bone mineral density (aBMD) in middle-aged and elderly European men. Older men with high bone turnover are at a higher risk of accelerated hip bone loss, but the clinical utility of BTMs in individuals is limited. INTRODUCTION Prospective studies on the value of BTMs to predict changes in aBMD in men are few and conflicting. The aim of this study was to determine whether BTMs predict changes in aBMD in middle-aged and elderly European men. METHODS In 487 men aged 40-79 years from the European Male Ageing Study (EMAS), BTMs were assessed at baseline and dual-energy X-ray absorptiometry (DXA) at the lumbar spine (LS), femoral neck (FN) and total hip (TH) was performed at baseline and after a mean follow-up of 4.3 years. RESULTS The mean aBMD decreased by 0.32%/year at FN and 0.22%/year at TH and increased by 0.32%/year at LS. Higher baseline levels of β C-terminal cross-linked telopeptide (β-CTX) and N-terminal propeptide of type I procollagen (PINP) were significantly associated with higher loss of hip aBMD in the whole cohort and men aged 60-79 years. These associations remained significant after adjustment for age, centre and body mass index (BMI). Men aged 60-79 years with β-CTX in the upper quintile were more likely of being in the upper quintile of annual percentage (%) aBMD loss at FN (OR=4.27; 95% CI=2.09-8.73) and TH (OR=3.73; 95% CI=1.84-7.57). The positive predictive value (PPV) was 46% at both hip sites. CONCLUSION Older men with high bone turnover have a higher risk of accelerated hip bone loss, but the PPV is low. BTMs are therefore unlikely to be of clinical utility in predicting accelerated hip bone loss in individual subjects.
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Affiliation(s)
- E Gielen
- Gerontology and Geriatrics, Department of Clinical and Experimental Medicine, KU Leuven, Leuven, Belgium,
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Confavreux CB, Szulc P, Casey R, Varennes A, Goudable J, Chapurlat RD. Lower serum osteocalcin is associated with more severe metabolic syndrome in elderly men from the MINOS cohort. Eur J Endocrinol 2014; 171:275-83. [PMID: 24842726 DOI: 10.1530/eje-13-0567] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Bone has emerged as an endocrine organ regulating energy metabolism through secretion of osteocalcin. In epidemiological studies, presence of metabolic syndrome (MetS) was associated with lower osteocalcin level. OBJECTIVES We evaluated whether osteocalcin level was associated with MetS severity in men and whether it was more strongly associated with MetS compared with N-terminal propeptide of type I procollagen (PINP), bone-specific alkaline phosphatase (BAP), and C-terminal telopeptide of type I collagen (βCTX). METHODS We included 798 men aged 51-85 years for total osteocalcin measurement. Number of MetS criteria was used to define severity. We used polytomous logistic regression to assess the relationship between MetS severity and osteocalcin level. RESULTS Thirty percent of men had MetS. In patients with MetS, the higher the number of MetS traits were present, the lower was the average osteocalcin level (0-2 criteria: 551 men: 19.5±6.7 ng/ml, three criteria: 155 men: 19.3±7.4 ng/ml, four criteria: 72 men: 17.3±5.7 ng/ml, and five criteria: 20 men: 15.0±5.1 ng/ml; P for trend=0.002).In the polytomous logistic regression model, an increase in osteocalcin level of 10 ng/ml was associated with lower prevalence of severe MetS: three criteria (odds ratio (OR)=0.93 (0.70-1.24)), four criteria (OR=0.54 (0.34-0.84)), and five criteria (OR=0.28 (0.10-0.82)) in comparison with no MetS (P for trend=0.008).After adjustment, using stepwise analysis of the polytomous logistic regression model, we observed that osteocalcin, age, and apparent free testosterone entered in the model but not other bone markers (PINP, βCTX, and BAP). CONCLUSION In older Caucasian men, total osteocalcin level was associated with MetS severity. Osteocalcin was more strongly associated with MetS severity than other bone turnover markers.
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Affiliation(s)
- Cyrille B Confavreux
- Université de Lyon - INSERM UMR1033Hospices Civils de Lyon, Department of Rheumatology, Hôpital Edouard Herriot, Hospices Civils de Lyon, Pavillon F, 5 place d'Arsonval, Lyon 69003, FranceOFSEP-Université de LyonHospices Civils de Lyon, Lyon 69003, FranceCentral Biochemical LaboratoryHôpital Edouard Herriot, Hospices Civils de Lyon, Lyon 69003, FranceINSERM UMR1060-Université de LyonLyon, France
| | - Pawel Szulc
- Université de Lyon - INSERM UMR1033Hospices Civils de Lyon, Department of Rheumatology, Hôpital Edouard Herriot, Hospices Civils de Lyon, Pavillon F, 5 place d'Arsonval, Lyon 69003, FranceOFSEP-Université de LyonHospices Civils de Lyon, Lyon 69003, FranceCentral Biochemical LaboratoryHôpital Edouard Herriot, Hospices Civils de Lyon, Lyon 69003, FranceINSERM UMR1060-Université de LyonLyon, France
| | - Romain Casey
- Université de Lyon - INSERM UMR1033Hospices Civils de Lyon, Department of Rheumatology, Hôpital Edouard Herriot, Hospices Civils de Lyon, Pavillon F, 5 place d'Arsonval, Lyon 69003, FranceOFSEP-Université de LyonHospices Civils de Lyon, Lyon 69003, FranceCentral Biochemical LaboratoryHôpital Edouard Herriot, Hospices Civils de Lyon, Lyon 69003, FranceINSERM UMR1060-Université de LyonLyon, France
| | - Annie Varennes
- Université de Lyon - INSERM UMR1033Hospices Civils de Lyon, Department of Rheumatology, Hôpital Edouard Herriot, Hospices Civils de Lyon, Pavillon F, 5 place d'Arsonval, Lyon 69003, FranceOFSEP-Université de LyonHospices Civils de Lyon, Lyon 69003, FranceCentral Biochemical LaboratoryHôpital Edouard Herriot, Hospices Civils de Lyon, Lyon 69003, FranceINSERM UMR1060-Université de LyonLyon, France
| | - Joelle Goudable
- Université de Lyon - INSERM UMR1033Hospices Civils de Lyon, Department of Rheumatology, Hôpital Edouard Herriot, Hospices Civils de Lyon, Pavillon F, 5 place d'Arsonval, Lyon 69003, FranceOFSEP-Université de LyonHospices Civils de Lyon, Lyon 69003, FranceCentral Biochemical LaboratoryHôpital Edouard Herriot, Hospices Civils de Lyon, Lyon 69003, FranceINSERM UMR1060-Université de LyonLyon, France
| | - Roland D Chapurlat
- Université de Lyon - INSERM UMR1033Hospices Civils de Lyon, Department of Rheumatology, Hôpital Edouard Herriot, Hospices Civils de Lyon, Pavillon F, 5 place d'Arsonval, Lyon 69003, FranceOFSEP-Université de LyonHospices Civils de Lyon, Lyon 69003, FranceCentral Biochemical LaboratoryHôpital Edouard Herriot, Hospices Civils de Lyon, Lyon 69003, FranceINSERM UMR1060-Université de LyonLyon, France
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Joiner DM, Tayim RJ, McElderry JD, Morris MD, Goldstein SA. Aged male rats regenerate cortical bone with reduced osteocyte density and reduced secretion of nitric oxide after mechanical stimulation. Calcif Tissue Int 2014; 94:484-94. [PMID: 24370615 PMCID: PMC4791168 DOI: 10.1007/s00223-013-9832-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 12/01/2013] [Indexed: 01/05/2023]
Abstract
Mechanical loading is integral to the repair of bone damage. Osteocytes are mechanosensors in bone and participate in signaling through gap junction channels, which are primarily comprised of connexin 43 (Cx43). Nitric oxide (NO) and prostaglandin E2 (PGE2) have anabolic and catabolic effects on bone, and the secretion of these molecules occurs after mechanical stimulation. The effect of age on the repair of bone tissue after damage and on the ability of regenerated bone to transduce mechanical stimulation into a cellular response is unexplored. The goal of this study was to examine (1) osteocytes and their mineralized matrix within regenerated bone from aged and mature animals and (2) the ability of regenerated bone explants from aged and mature animals to transduce cyclic mechanical loading into a cellular response through NO and PGE2 secretion. Bilateral cortical defects were created in the diaphysis of aged (21-month-old) or mature (6-month-old) male rats, and new bone tissue was allowed to grow into a custom implant of controlled geometry. Mineralization and mineral-to-matrix ratio were significantly higher in regenerated bone from aged animals, while lacunar and osteocyte density and phosphorylated (pCx43) and total Cx43 protein were significantly lower, relative to mature animals. Regenerated bone from mature rats had increased pCx43 protein and PGE2 secretion with loading and greater NO secretion relative to aged animals. Reduced osteocyte density and Cx43 in regenerated bone in aged animals could limit the establishment of gap junctions as well as NO and PGE2 secretion after loading, thereby altering bone formation and resorption in vivo.
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Affiliation(s)
- Danese M Joiner
- Orthopaedic Research Laboratories, University of Michigan, Biomedical Science Research Building, 109 Zina Pitcher Place Bay 4888, Ann Arbor, MI, 48108, USA,
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Zeng JH, Zhong ZM, Li XD, Wu Q, Zheng S, Zhou J, Ye WB, Xie F, Wu XH, Huang ZP, Chen JT. Advanced oxidation protein products accelerate bone deterioration in aged rats. Exp Gerontol 2014; 50:64-71. [DOI: 10.1016/j.exger.2013.11.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/25/2013] [Accepted: 11/26/2013] [Indexed: 12/29/2022]
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Behan LA, Kelleher G, Hannon MJ, Brady JJ, Rogers B, Tormey W, Smith D, Thompson CJ, McKenna MJ, Agha A. Low-dose hydrocortisone replacement therapy is associated with improved bone remodelling balance in hypopituitary male patients. Eur J Endocrinol 2014; 170:141-50. [PMID: 24123094 DOI: 10.1530/eje-13-0596] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Glucocorticoid (GC) therapy is associated with adverse effects on bone metabolism, yet the effects of different GC physiological replacement regimens in hypopituitarism are not well characterised. We aimed to assess the effect of three hydrocortisone (HC) replacement dose regimens on bone turnover. STUDY DESIGN An open cross-over study randomising ten hypopituitary men with severe acth deficiency to three commonly used HC dose regimens: dose A (20 mg mane and 10 mg tarde), dose B (10 mg mane and 10 mg tarde) and dose C (10 mg mane and 5 mg tarde). METHODS Following 6 weeks of each regimen, the participants underwent 24-h serum cortisol sampling and measurement of bone turnover markers: bone-specific alkaline phosphatase, procollagen type I N-propeptide (PINP), intact osteocalcin (OC(1-49)), C-terminal cross-linking telopeptide (CTX-I) and tartrate-resistant acid phosphatase 5b (TRACP5b). Bone remodelling balance was estimated as an absolute ratio (PINP:CTX-I) and as an index using standardised scores derived from the matched controls. RESULTS There were significant increases in the concentrations of the formation markers PINP (P=0.045) and OC(1-49) (P=0.006) and in the PINP:CTX-I ratio (P=0.015), and a more positive bone remodelling balance index (P=0.03) was observed in patients on the lowest dose C than in those on the highest dose A. Mean 24-h cortisol concentrations correlated negatively with CTX-I (r=-0.66 and P=0.04) and TRACP5b (r=-0.74 and P=0.01) in patients on dose B and with OC(1-49) (r=-0.66 and P=0.04) and CTX-I (r=-0.81 and P<0.01) in patients on dose C. In patients receiving the lower-dose regimen, trough cortisol concentrations correlated with increased bone formation and resorption. CONCLUSION Low-dose HC replacement (10 mg mane and 5 mg tarde) is associated with increased bone formation and a positive bone remodelling balance. This may have a long-term beneficial effect on bone health.
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Michelsen J, Wallaschofski H, Friedrich N, Spielhagen C, Rettig R, Ittermann T, Nauck M, Hannemann A. Reference intervals for serum concentrations of three bone turnover markers for men and women. Bone 2013; 57:399-404. [PMID: 24076251 DOI: 10.1016/j.bone.2013.09.010] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 09/10/2013] [Accepted: 09/17/2013] [Indexed: 01/23/2023]
Abstract
OBJECTIVE Bone turnover markers (BTMs) reflect the metabolic activity of bone tissue and can be used to monitor osteoporosis therapy. To adequately interpret BTMs, method-specific reference intervals are needed. We aimed to determine reference intervals for serum concentrations of intact amino-terminal propeptide of type I procollagen (PINP), bone-specific alkaline phosphatase (BAP) and carboxy-terminal telopeptide of type I collagen (CTX). MATERIAL AND METHODS We established a healthy reference population of 1107 men as well as 382 pre- and 450 postmenopausal women, who participated in the first follow-up of the Study of Health in Pomerania. Serum PINP, BAP and CTX concentrations were measured on the IDS-iSYS Automated System (Immunodiagnostic Systems, Frankfurt am Main, Germany). The reference interval was defined as the central 95% range. We determined age-specific reference intervals for PINP, BAP, and CTX for men by quantile regression. Reference intervals for women were age-independent. RESULTS Reference intervals for men for PINP and CTX decreased with age (25-29year-old men: PINP 31.1-95.9ng/mL, CTX 0.12-0.83ng/mL; 75-79year-old men: PINP 15.7-68.1ng/mL, CTX 0.05-0.58ng/mL). The reference interval for men for BAP did not significantly change with age (25-29year-old men: 7.4-27.7ng/mL; 75-79year-old men: 7.6-24.4ng/mL). The reference intervals for 30-54year-old premenopausal women were: PINP 19.3-76.3ng/mL, BAP 6.0-22.7ng/mL, and CTX 0.05-0.67ng/mL. The reference intervals for 50-79year-old postmenopausal women were: PINP 18.2-102.3ng/mL, BAP 8.1-31.6ng/mL, and CTX 0.09-1.05ng/mL. CONCLUSION An intensively characterized, large reference population free of bone-related diseases allowed us to determine robust reference intervals for serum concentrations of PINP, BAP and CTX. Our normative data may aid to interpret bone turnover in adult men and pre- and postmenopausal women.
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Affiliation(s)
- J Michelsen
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
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Niemann I, Hannemann A, Nauck M, Spielhagen C, Völzke H, Wallaschofski H, Friedrich N. The association between insulin-like growth factor I and bone turnover markers in the general adult population. Bone 2013; 56:184-90. [PMID: 23792936 DOI: 10.1016/j.bone.2013.06.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 05/23/2013] [Accepted: 06/08/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Growth hormone (GH) and its main mediator, insulin-like growth factor I (IGF-I), play a fundamental role in human metabolism. Previous epidemiological studies investigating the association of IGF-I and bone turnover markers (BTMs) yielded conflicting results and were limited by study design or sample size. Therefore, we aimed to investigate the associations between serum levels of IGF-I or the IGF-I/IGF binging protein 3 (IGFBP-3) ratio and levels of BTMs including procollagen type 1 N-terminal propeptide (PINP), C-terminal telopeptides of type 1 collagen (CTX), and bone-specific alkaline phosphatase (BAP). METHODS Data from 1463 men and 1481 women who participated in the first follow-up of the Study of Health in Pomerania were used. IGF-I and IGFBP-3 levels were measured using chemiluminescent immunometric assays on an Immulite 2500 analyzer. BTM levels were measured on the IDS-iSYS Multi-Discipline Automated Analyser. Analyses of variance (ANOVA) and quantile regression models were calculated. RESULTS In men <55 years and premenopausal women ANOVA and quantile regression analyses revealed positive associations between IGF-I or even stronger the IGF-I/IGFBP-3 ratio and PINP [per unit increase in IGF-I/IGFBP-3 ratio in men: beta (95%-CI) 2.33 ng/ml (0.91; 3.75), p < 0.01; women: 3.63 ng/ml (2.31; 4.95), p < 0.01] or CTX [men: 20.8 ng/l (3.5; 38.0), p = 0.02; women: 12.0 ng/l (-1.2; 25.2), p = 0.07]. Furthermore in postmenopausal women, IGF-I and the IGF-I/IGFBP-3 ratio were inversely related with CTX levels, whereas an inverse U-shaped relation between IGF-I/IGFBP-3 ratio and PINP was found. Regarding BAP, we observed borderline significant associations with IGF-I or the IGF-I/IGFBP-3 ratio in older subjects only. CONCLUSION IGF-I levels and particularly free IGF-I, estimated by the IGF-I/IGFBP-3 ratio, are positively related with PINP as a bone formation marker and CTX as a bone resorption marker in healthy adult men younger than 55 years and premenopausal women. In older subjects the found positive as well as negative relations with BTMs have to be further investigated.
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Affiliation(s)
- Inga Niemann
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Germany
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Szulc P, Boutroy S, Vilayphiou N, Schoppet M, Rauner M, Chapurlat R, Hamann C, Hofbauer LC. Correlates of bone microarchitectural parameters and serum sclerostin levels in men: the STRAMBO study. J Bone Miner Res 2013; 28:1760-70. [PMID: 23408601 DOI: 10.1002/jbmr.1888] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 01/19/2013] [Accepted: 01/28/2013] [Indexed: 01/20/2023]
Abstract
Sclerostin is predominantly expressed by osteocytes. Serum sclerostin levels are positively correlated with areal bone mineral density (aBMD) measured by dual-energy X-ray absorptiometry (DXA) and bone microarchitecture assessed by high-resolution peripheral quantitative computed tomography (HR-pQCT) in small studies. We assessed the relation of serum sclerostin levels with aBMD and microarchitectural parameters based on HR-pQCT in 1134 men aged 20 to 87 years using multivariable models adjusted for confounders (age, body size, lifestyle, comorbidities, hormones regulating bone metabolism, muscle mass and strength). The apparent age-related increase in serum sclerostin levels was faster before the age of 63 years than afterward (0.43 SD versus 0.20 SD per decade). In 446 men aged ≤63 years, aBMD (spine, hip, whole body), trabecular volumetric BMD (Tb.vBMD), and trabecular number (Tb.N) at the distal radius and tibia were higher in the highest sclerostin quartile versus the three lower quartiles combined. After adjustment for aBMD, men in the highest sclerostin quartile had higher Tb.vBMD (mainly in the central compartment) and Tb.N at both skeletal sites (p < 0.05 to 0.001). In 688 men aged >63 years, aBMD was positively associated with serum sclerostin levels at all skeletal sites. Cortical vBMD (Ct.vBMD) and cortical thickness (Ct.Th) were lower in the first sclerostin quartile versus the three higher quartiles combined. Tb.vBMD increased across the sclerostin quartiles, and was associated with lower Tb.N and more heterogeneous trabecular distribution (higher Tb.Sp.SD) in men in the lowest sclerostin quartile. After adjustment for aBMD, men in the lowest sclerostin quartile had lower Tb.vBMD and Tb.N, but higher Tb.Sp.SD (p < 0.05 to 0.001) at both the skeletal sites. In conclusion, serum sclerostin levels in men are strongly positively associated with better bone microarchitectural parameters, mainly trabecular architecture, regardless of the potential confounders.
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Affiliation(s)
- Pawel Szulc
- Institut National de la Santé et de la Recherche Médicale INSERM; National Institute of Health and Medical Research UMR 1033, University of Lyon, Lyon, France.
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Jenkins N, Black M, Paul E, Pasco JA, Kotowicz MA, Schneider HG. Age-related reference intervals for bone turnover markers from an Australian reference population. Bone 2013; 55:271-6. [PMID: 23603243 DOI: 10.1016/j.bone.2013.04.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 03/22/2013] [Accepted: 04/04/2013] [Indexed: 11/17/2022]
Abstract
BACKGROUND This study was performed to establish age-related serum reference intervals for procollagen type I N-propeptide (P1NP) and type I collagen C-telopeptide (CTx) in the Australian population. METHODS Fasting sera from 1143 males (mean age 60 years; range 20-97 years) and 1246 females (mean age 53 years; range 20-93 years) who participated in the Geelong Osteoporosis Study were analysed for CTx and P1NP using the automated Roche Modular Analytics E170 analyser. RESULTS Optimal age-related reference intervals were based on the central 90% of the distribution. The male CTx reference interval was divided into three age groups. For men aged 25 to 40 years, the interval was 170-600 ng/L; 40 to 60 years, the interval was 130-600 ng/L; and for men aged greater 60 years the interval was 100-600 ng/L. For P1NP the male reference interval was 15-80 μg/L for men aged between 25 to 70 years. In men greater than 70 years of age values were higher possibly due to increased bone turnover. High values are frequently seen for both CTx and P1NP in males aged younger than 25 years. This is probably due to bone growth that is not completely finalised. The female CTx reference interval was divided into four age groups. For women aged less than 30 years, the interval was 150-800 ng/L; 30-39 years, the interval was 100-700 ng/L; 40-49 years, the interval was 100-600 ng/L; and for women aged 50 years or more the interval was 100-700 ng/L. The female P1NP reference interval was divided into four age groups. For women aged less than 30 years, the interval was 25-90 μg/L; 30-39 years, the interval was 15-80 μg/L; 40-49 years, the interval was 15-60 μg/L; and for women aged 50-69 years the interval was 15-75 μg/L. In women greater than 70 years of age values were higher possibly due to increased bone turnover. CONCLUSION Values obtained from this large study provide sound age-related reference intervals for serum P1NP and CTx values in the Australian population.
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Affiliation(s)
- N Jenkins
- Clinical Biochemistry Unit, Alfred Pathology Service, Melbourne, Australia.
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Kyvernitakis I, Saeger U, Ziller V, Bauer T, Seker-Pektas B, Hadji P. The effect of age, sex hormones, and bone turnover markers on calcaneal quantitative ultrasonometry in healthy German men. J Clin Densitom 2013; 16:320-328. [PMID: 23582469 DOI: 10.1016/j.jocd.2013.01.009] [Citation(s) in RCA: 17] [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: 12/26/2012] [Accepted: 01/31/2013] [Indexed: 10/26/2022]
Abstract
The aim of this cross-sectional study was to determine the age-dependent variations of calcaneal quantitative ultrasonometry (QUS) and the association with sex hormones and biochemical bone turnover markers in a large sample of unselected healthy German men. Bone measurements are expected to behave differently among men and women. The speed of sound (SOS), broadband ultrasound attenuation (BUA), and stiffness index (SI) of the os calcaneus were measured in 506 German men aged 20-79 yr (mean age: 45.7 yr). Additionally, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol, prolactin, testosterone, dehydroepiandrosterone sulfate (DHEA-S), sex hormone-binding globulin (SHBG) as well as N-terminal propeptide of human procollagen type I (PINP), C-terminal telopeptide of type I collagen (ICTP), osteocalcin, bone-specific alkaline phosphatase, and CrossLaps were measured with standardized essays and correlated with the QUS results. The QUS results comprised an overall change of 12.4%, 3.2%, and 23.2% for BUA, SOS, and SI, respectively, between the 20-29 and 70-79 yr age groups (p ≤ 0.001). The annual rate of the age-related differences was 0.33% (standard deviation [SD]: 0.31), 0.06% (SD: 0.08), and 0.53% (SD: 0.56) for BUA, SOS, and SI, respectively. Testosterone and DHEA-S were significantly associated with QUS parameters and increasing age, whereas SHBG showed an age-related increase and was inversely related with QUS values (p < 0.05). Bone turnover markers present lower values gradually, and we found a significant correlation between carboxy-terminal collagen crosslinks (CTX), osteocalcin (OC), bone alkaline phosphatase (BAP), and QUS variables (p < 0.05).
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Affiliation(s)
- Ioannis Kyvernitakis
- Department of Endocrinology, Reproductive Medicine and Osteoporosis, Phillips-University of Marburg, Marburg, Germany.
| | - Ulf Saeger
- Department of Endocrinology, Reproductive Medicine and Osteoporosis, Phillips-University of Marburg, Marburg, Germany
| | - Volker Ziller
- Department of Endocrinology, Reproductive Medicine and Osteoporosis, Phillips-University of Marburg, Marburg, Germany
| | - Thomas Bauer
- Department of Endocrinology, Reproductive Medicine and Osteoporosis, Phillips-University of Marburg, Marburg, Germany
| | - Berna Seker-Pektas
- Department of Endocrinology, Reproductive Medicine and Osteoporosis, Phillips-University of Marburg, Marburg, Germany
| | - Peyman Hadji
- Department of Endocrinology, Reproductive Medicine and Osteoporosis, Phillips-University of Marburg, Marburg, Germany
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Xu J, Sun M, Wang Z, Fu Q, Cao M, Zhu Z, Meng C, Yan Y, Mao J, Tao H, Huang X, Lin Z, Yang T, He W. Awareness of osteoporosis and its relationship with calcaneus quantitative ultrasound in a large Chinese community population. Clin Interv Aging 2013; 8:789-96. [PMID: 23836969 PMCID: PMC3699130 DOI: 10.2147/cia.s45874] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background The People’s Republic of China has the largest population affected by osteoporosis in the world. However, no population-based survey of osteoporosis awareness in People’s Republic of China has been reported. This study investigated the level of basic awareness of osteoporosis in a large community in People’s Republic of China. The relationship between level of awareness and quantitative ultrasound (US) measurements at the calcaneus was also assessed. Methods A questionnaire was completed by 9983 men and women aged 40 years or older in Nanjing, People’s Republic of China, between June and December 2011. During this time, the study participants underwent quantitative US measurement. Data from 9049 of the subjects were included in the final analysis. Results The proportion of subjects who were aware of osteoporosis was very low. Only 30.7% had heard of osteoporosis, and only 18.5% had heard of osteoporotic fracture. In total, 52.9% of the subjects drank milk, 16.0% took calcium, 7.1% took vitamin D, and 47.2% were performing regular physical activity. Logistic regression showed that more highly educated older women had significantly better awareness of osteoporosis (P < 0.05). Subjects with a history of a previous osteoporotic fracture also had better awareness (P < 0.05) than subjects without such a history, except for those who drank milk. Similar to previous reports, female sex, old age, a low education level, and a personal history of osteoporotic fracture were significantly associated with a low quantitative US measurement (P < 0.001). Further, drinking milk and having not heard of osteoporosis were significantly associated with a higher quantitative US measurement (P < 0.05), while other indicators of osteoporosis awareness were not associated with quantitative US values (P > 0.05). Conclusion Awareness of osteoporosis in People’s Republic of China is very low. National awareness strategies should be implemented, especially for poorly educated young men.
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Affiliation(s)
- Jingjing Xu
- Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People’s Republic of China
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Szulc P, Bertholon C, Borel O, Marchand F, Chapurlat R. Lower fracture risk in older men with higher sclerostin concentration: a prospective analysis from the MINOS study. J Bone Miner Res 2013; 28:855-64. [PMID: 23165952 DOI: 10.1002/jbmr.1823] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/20/2012] [Accepted: 11/05/2012] [Indexed: 01/15/2023]
Abstract
Sclerostin is synthesized by osteocytes and inhibits bone formation. We measured serum sclerostin levels in 710 men aged 50 years and older. Bone mineral density (BMD) was measured at the lumbar spine, hip, and distal forearm. Serum sclerostin increased with age (unadjusted r = 0.30, p < 0.001). After adjustment for age, weight, and bioavailable 17β-estradiol, serum sclerostin correlated positively with BMD (r = 0.24 to 0.35, p < 0.001) and negatively with the levels of bone turnover markers (r = - 0.09 to - 0.23, p < 0.05 to 0.001). During a 10-year follow-up, 75 men sustained fragility fractures. Fracture risk was lower in the two upper quintiles of sclerostin combined versus three lower quintiles combined (6.1 versus 13.5%, p < 0.01). We compared fracture risk in the two highest quintiles combined versus three lower quintiles combined using the Cox model adjusted for age, weight, leisure physical activity, BMD, bone width (tubular bones), prevalent fracture, prevalent falls, ischemic heart disease, and severe abdominal aortic calcification. Men with higher sclerostin concentration had lower fracture risk (adjusted for hip BMD, hazard ratio [HR] = 0.55, 95% confidence interval [CI] 0.31 to 0.96, p < 0.05). The results were similar in 47 men with major fragility fractures (adjusted for lumbar spine BMD: HR = 0.39, 95% CI 0.17 to 0.90, p < 0.05). Men who had higher sclerostin and higher BMD (two highest quintiles) had lower risk of fracture compared with men who had lower BMD and lower sclerostin levels (three lower quintiles) (HR = 0.24, 95% CI 0.10 to 0.62, p < 0.005). Circulating sclerostin was not associated with mortality rate or the incidence of major cardiovascular events. Thus, in older men, higher serum sclerostin levels are associated with lower risk of fracture, higher BMD, and lower bone turnover rate.
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Affiliation(s)
- Pawel Szulc
- INSERM UMR 1033, University of Lyon, Lyon, France.
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Confavreux CB, Szulc P, Casey R, Boutroy S, Varennes A, Vilayphiou N, Goudable J, Chapurlat RD. Higher serum osteocalcin is associated with lower abdominal aortic calcification progression and longer 10-year survival in elderly men of the MINOS cohort. J Clin Endocrinol Metab 2013; 98:1084-92. [PMID: 23386651 DOI: 10.1210/jc.2012-3426] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT Abdominal aortic calcification (AAC) is an indicator of cardiovascular risk, especially in the diseases characterized by insulin resistance such as type 2 diabetes. Osteocalcin is a bone-secreted hormone that favors insulin sensitivity and insulin secretion. OBJECTIVES We investigated whether total serum osteocalcin level at baseline is associated with AAC progression and 10-year all-cause mortality in elderly men. DESIGN AND PARTICIPANTS We assessed 774 men aged 51-85 years from the MINOS cohort who had osteocalcin measurement and lumbar spine radiographs at baseline. They were followed-up prospectively for 10 years. Among them, 615 patients had a follow-up radiograph at 3.5 or 7 years. MAIN OUTCOME MEASURES Serum total osteocalcin was measured with an immunoradiometric assay on morning fasting serum collected at baseline. Kauppila's AAC score was assessed from lumbar spine radiographs. AAC progression rate was calculated as the difference between AAC on the last available radiograph and AAC at baseline divided by the follow-up time. Death status was collected over 10 years. RESULTS In multivariate analysis, higher baseline total osteocalcin was associated with lower AAC progression rate (odds ratio = 0.74 [0.57-0.97] per 10 ng/mL variation; P = 0.029). At the 10-year follow-up, there were 599 men alive (77%), 181 dead (23%), and 2 lost to follow-up. Higher osteocalcin was associated with lower 10-year all-cause mortality (hazard ratio = 0.62 [0.44-0.86] per 10 ng/mL variation; P = 0.005). CONCLUSION Higher baseline total osteocalcin concentrations were associated with lower AAC progression rate and lower mortality. These data suggest that osteocalcin level might be an independent indicator of cardiovascular risk and global health in elderly Caucasian men.
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Affiliation(s)
- Cyrille B Confavreux
- Service de Rhumatologie, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche 1033, Pavillon F, Hôpital Edouard Herriot, 5 Place d'Arsonval, 69003 Lyon, France.
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Nagy H, Feyt C, Chapurlat R, Szulc P. Familial resemblance of bone turnover rate in men aged 40 and over-the MINOS study. J Bone Miner Metab 2013. [PMID: 23179229 DOI: 10.1007/s00774-012-0408-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Familial resemblance of bone mineral density (BMD) is well known in both sexes. Fewer data concern the familial resemblance of bone turnover markers (BTMs) and bone size in men. Our aim was to assess the correlation of BMD, bone size, BTM levels and hormones regulating bone turnover in 50 pairs of brothers aged ≥ 40 and 50 pairs of unrelated men matched for age, weight and height. BMD was measured at the lumbar spine, hip, forearm and whole body. We measured serum osteocalcin (OC), bone-specific alkaline phosphatase (bone ALP), N-terminal propeptide of type I procollagen (PINP) and C-terminal telopeptide of type I collagen (CTX-I) as well as urinary free and total deoxypyridinoline (DPD) and CTX-I. After adjustment for age, weight, bioavailable 17β-estradiol, and parathyroid hormone, all the BTMs (except bone ALP) were significantly correlated in the brothers (ICC = 0.36-0.64). Most of these correlations were significantly stronger than in the unrelated men. Bone size correlated significantly between the brothers (ICC = 0.55-0.65). These correlations were significantly stronger than in the unrelated men. BMD correlated between the brothers at most of the skeletal sites and, for some of them, more strongly than in the unrelated men. Serum levels of LDL-cholesterol and triglycerides were significantly correlated in the brothers, but not more strongly than in the unrelated men. BTM levels correlated independently in the brothers aged ≥ 40, when their shared environment was limited. These data suggest a substantial hereditary determinism of the BTM levels in men.
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Affiliation(s)
- Hoda Nagy
- INSERM UMR 1033, Hôpital Edouard Herriot, Pavillon F, Université de Lyon, Place d'Arsonval, 69437, Lyon, France
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Hu WW, Zhang Z, He JW, Fu WZ, Wang C, Zhang H, Yue H, Gu JM, Zhang ZL. Establishing reference intervals for bone turnover markers in the healthy shanghai population and the relationship with bone mineral density in postmenopausal women. Int J Endocrinol 2013; 2013:513925. [PMID: 23533403 PMCID: PMC3600195 DOI: 10.1155/2013/513925] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/10/2013] [Accepted: 01/11/2013] [Indexed: 11/17/2022] Open
Abstract
The reference ranges of bone turnover markers (BTMs) were important during the treatment of osteoporosis, and the associations with bone mineral density (BMD) were controversial. The aim of this study was to establish the reference ranges of N-terminal procollagen of type l collagen (P1NP), osteocalcin (OC), and beta C-terminal cross-linked telopeptides of type I collagen ( β -CTX) in Shanghai area and to investigate the relationships between BTMs and BMD in postmenopausal women. 2,799 subjects recruited in Shanghai City were measured BTMs to establish the reference ranges. Additional 520 healthy postmenopausal women were also measured BTMs, these women measured BMD in addition. BTMs were measured using the Roche electrochemiluminescence system. We used the age range of 35 to 45-year-olds to calculate reference intervals. The reference range of OC was 4.91 to 13.90 ng/mL for women and 5.58 to 16.57 ng/mL for men, P1NP was 13.72 to 32.90 ng/mL for women and 16.89 to 42.43 ng/mL for men, and β -CTX was 0.112 to 0.210 ng/mL for women and 0.100 to 0.378 ng/mL for men. BTMs significantly negatively correlated with lumbar spine and femoral and total hip in postmenopausal women (Betastd = -0.157 ~ -0.217, P < 0.001). We established the normal reference ranges of P1NP, OC, and β -CTX in the Shanghai area. This study also found that BTMs correlated with BMD and suggested that BTMs were the key determining factors of early BMD decreases.
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Affiliation(s)
- Wei-Wei Hu
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Zeng Zhang
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Jin-Wei He
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Wen-Zhen Fu
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Chun Wang
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Hao Zhang
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Hua Yue
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Jie-Mei Gu
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
| | - Zhen-Lin Zhang
- Metabolic Bone Disease and Genetic Research Unit, Department of Osteoporosis and Bone Disease, Shanghai Sixth People's Hospital Shanghai Jiao Tong University, 600 Yi-Shan Road, Shanghai 200233, China
- *Zhen-Lin Zhang:
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Abstract
PURPOSE OF REVIEW To describe the modalities and interest of the use of bone turnover markers (BTMs) in clinical practice for osteoporosis management. RECENT FINDINGS Serum procollagen type I N-terminal propeptide and serum collagen type I crosslinked C-telopeptide are respectively the formation and resorption markers recommended to use as references for bone remodelling assessment in clinical studies. SUMMARY Biochemical BTMs reflect changes in bone metabolism. In clinical practice, many factors influencing BTMs, variability needs to be integrated during all of the dosage process. They include sample collection and storage conditions, patient's characteristics and lifestyle habits, recent fracture. The reference intervals are also affected by the type of automated assays used to assess BTMs. Appropriate references measured with the same assay method must be used for the optimum interpretation of results. BTMs have been extensively used as indicators in the diagnosis and monitoring of osteoporosis. However, their interest was mainly demonstrated to reflect changes in bone metabolism under antiosteoporotic treatments in clinical studies. Significant reductions in BTMs associated with fracture risk reduction needs to be determined in the management of osteoporosis. The standardization of BTMs, assays with international reference standards should provide conditions to state on the applications of BTMs in routine clinical practice.
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Affiliation(s)
- Emmanuel Biver
- Department of Rheumatology, Lille University Hospital, Roger Salengro Hospital, Lille cedex, France.
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Coiffier G, Bouvard B, Chopin F, Biver E, Funck-Brentano T, Garnero P, Guggenbuhl P. Common bone turnover markers in rheumatoid arthritis and ankylosing spondylitis: a literature review. Joint Bone Spine 2012; 80:250-7. [PMID: 23142254 DOI: 10.1016/j.jbspin.2012.08.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Accepted: 08/02/2012] [Indexed: 11/28/2022]
Abstract
We studied the impact of inflammatory rheumatism and its treatment on the most common bone turnover markers, based on six previously defined questions in a systematic literature review in order to define their place in daily clinical practice. The role of bone is currently considered of particular importance concerning cartilage damage in inflammatory rheumatism (rheumatoid arthritis and ankylosing spondylitis) and the new concept of osteoimmunology has emerged. Some bone turnover markers are available in clinical practice. In spite of rich and extensive literature on bone turnover markers, their use in inflammatory rheumatism or even osteoporosis is not clear, and a systematic literature review became necessary. In spite of a large number of different markers used in literature, few of them that are useful in common practice have been studied in the field of inflammatory rheumatism such as rheumatoid arthritis and ankylosing spondylitis. Although their study enables understanding of the physiopathological mechanisms of osteoporosis in inflammatory rheumatism, their use in current common practice cannot be recommended. Interesting data on the forecast of the structural evolution of rheumatoid arthritis has been found within the framework of clinical research, without any real practical impact today.
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Affiliation(s)
- Guillaume Coiffier
- University hospital of Rennes, Hôpital Sud, Rheumatology Department, 16, boulevard de Bulgarie, 35203, Rennes cedex, France.
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45
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Clusters within a wide spectrum of biochemical markers for osteoarthritis: data from CHECK, a large cohort of individuals with very early symptomatic osteoarthritis. Osteoarthritis Cartilage 2012; 20:745-54. [PMID: 22503811 DOI: 10.1016/j.joca.2012.04.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 03/08/2012] [Accepted: 04/04/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess a wide spectrum of biochemical markers (biomarkers) in a large cohort of individuals with (very) early symptomatic knee and/or hip osteoarthritis (OA). Secondly, to investigate associations between biomarkers and between biomarkers and demographics to demonstrate validity of the obtained dataset and further investigate the involvement and/or role of these biomarkers in OA. DESIGN Fourteen biomarkers (uCTX-II, uCTX-I, uNTX-I, sCOMP, sPIIANP, sCS846, sC1,2C, sOC, sPINP, sHA, sPIIINP, pLeptin, pAdiponectin, pResistin) were assessed by ELISA or RIA in CHECK (Cohort Hip and Cohort Knee), a 10-year prospective cohort of 1,002 individuals with early symptomatic knee and/or hip OA. RESULTS Quality controls revealed that gathered data were technically reliable. The majority of biomarkers showed relevant associations with demographic variables, which were expectedly different between genders and/or menopausal status for some. Principal component analysis enabled identification of five clusters, consecutively designated as 'bone-CTX-II', 'inflammation', 'synovium', 'C1,2C-adipokines', and 'cartilage synthesis' cluster. Notably, uCTX-II clustered with biomarkers of bone metabolism, while sCOMP clustered with biomarkers of synovial activity. CONCLUSIONS The identified clusters extended knowledge on individual biomarkers from mostly smaller studies as did the observed associations between biomarker levels and demographics, from which validity of our data was deduced. uCTX-II may not only reflect articular cartilage but also bone metabolism and sCOMP may reflect synovial rather than cartilage metabolism. Major involvement of adipokines in joint metabolism was not identified.
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46
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Chubb SAP. Measurement of C-terminal telopeptide of type I collagen (CTX) in serum. Clin Biochem 2012; 45:928-35. [PMID: 22504058 DOI: 10.1016/j.clinbiochem.2012.03.035] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 03/26/2012] [Accepted: 03/28/2012] [Indexed: 01/27/2023]
Abstract
Serum CTX assays measure a fragment of the C-terminal telopeptide of type 1 collagen released during resorption of mature bone. Assay reagents are available in manual and automated formats and give good analytical performance. However their standardisation is not transparent and significant differences in results between methods have been demonstrated. CTX is most stable in EDTA plasma, although serum samples processed promptly would be satisfactory. sCTX shows a profound circadian rhythm, especially in non-fasting subjects; specimens should be collected from fasting patients at a well-defined time of day to minimise biological variation. Reference intervals in pre-menopausal women have been well studied but in other adult groups there is less information. Healthy children show the expected age-related variation corresponding to growth rate. Serum CTX fulfils or partially fulfils all the criteria of a reference bone turnover marker. Further studies aimed at reducing inter-method differences in results and establishing the relationships of sCTX with fracture risk and with fracture risk improvement with treatment are required.
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Affiliation(s)
- S A Paul Chubb
- School of Pathology and Laboratory Medicine and School of Medicine and Pharmacology, University of Western Australia, Australia.
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Shahnazari M, Dwyer D, Chu V, Asuncion F, Stolina M, Ominsky M, Kostenuik P, Halloran B. Bone turnover markers in peripheral blood and marrow plasma reflect trabecular bone loss but not endocortical expansion in aging mice. Bone 2012; 50:628-37. [PMID: 22154841 DOI: 10.1016/j.bone.2011.11.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/06/2011] [Accepted: 11/16/2011] [Indexed: 12/17/2022]
Abstract
We examined age-related changes in biochemical markers and regulators of osteoblast and osteoclast activity in C57BL/6 mice to assess their utility in explaining age-related changes in bone. Several recently discovered regulators of osteoclasts and osteoblasts were also measured to assess concordance between their systemic levels versus their levels in marrow plasma, to which bone cells are directly exposed. MicroCT of 6-, 12-, and 24-month-old mice indicated an early age-related loss of trabecular bone volume and surface, followed by endocortical bone loss and periosteal expansion. Trabecular bone loss temporally correlated with reductions in biomarkers of bone formation and resorption in both peripheral blood and bone marrow. Endocortical bone loss and periosteal bone gain were not reflected in these protein biomarkers, but were well correlated with increased expression of osteocalcin, rank, tracp5b, and cathepsinK in RNA extracted from cortical bone. While age-related changes in bone turnover markers remained concordant in blood versus marrow, aging led to divergent changes in blood versus marrow for the bone cell regulators RANKL, OPG, sclerostin, DKK1, and serotonin. Bone expression of runx2 and osterix increased progressively with aging and was associated with an increase in the number of osteoprogenitors and osteoclast precursors. In summary, levels of biochemical markers of bone turnover in blood and bone marrow plasma were predictive of an age-related loss of trabecular surfaces in adult C57BL/6 mice, but did not predict gains in cortical surfaces resulting from cortical expansion. Unlike these turnover markers, a panel of bone cell regulatory proteins exhibited divergent age-related changes in marrow versus peripheral blood, suggesting that their circulating levels may not reflect local levels to which osteoclasts and osteoblasts are directly exposed.
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Affiliation(s)
- Mohammad Shahnazari
- Division of Endocrinology, Veterans Affairs Medical Center, and Department of Medicine, University of California, San Francisco, San Francisco, CA 94121, USA.
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48
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Biver E, Chopin F, Coiffier G, Brentano TF, Bouvard B, Garnero P, Cortet B. Bone turnover markers for osteoporotic status assessment? A systematic review of their diagnosis value at baseline in osteoporosis. Joint Bone Spine 2012; 79:20-5. [DOI: 10.1016/j.jbspin.2011.05.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Accepted: 05/06/2011] [Indexed: 01/12/2023]
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49
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Boonen S, Pye SR, O'Neill TW, Szulc P, Gielen E, Borghs H, Verschueren S, Claessens F, Adams JE, Ward KA, Bartfai G, Casanueva F, Finn JD, Forti G, Giwercman A, Han TS, Huhtaniemi IT, Kula K, Labrie F, Lean MEJ, Pendleton N, Punab M, Silman AJ, Tajar A, Wu FCW, Vanderschueren D. Influence of bone remodelling rate on quantitative ultrasound parameters at the calcaneus and DXA BMDa of the hip and spine in middle-aged and elderly European men: the European Male Ageing Study (EMAS). Eur J Endocrinol 2011; 165:977-86. [PMID: 21903895 DOI: 10.1530/eje-11-0353] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To assess the influence of sex hormones on markers of bone turnover and to explore the association between these markers and bone health in middle-aged and elderly European men. DESIGN A cross-sectional population-based survey. METHODS Men aged 40-79 years were recruited from population registers in eight European centres. Subjects completed a postal questionnaire which included questions concerning lifestyle and were invited to undergo quantitative ultrasound (QUS) of the calcaneus and to provide a fasting blood sample from which the bone markers serum N-terminal propeptide of type 1 procollagen (P1NP) and crosslinks (β C-terminal cross-linked telopeptide (β-cTX)), total testosterone, total oestradiol (E(2)), sex hormone-binding globulin (SHBG) and insulin-like growth factor 1 (IGF1) were measured. Dual-energy X-ray absorptiometry (DXA) of the hip and lumbar spine was performed in two centres. RESULTS A total of 3120, mean age 59.9 years (s.d.=11.0) were included. After adjustment for centre, age, height, weight, lifestyle factors, season and other hormones, total and free E(2) were negatively associated with β-cTX but not P1NP while SHBG, IGF1 and parathyroid hormone (PTH) were positively associated with both β-cTX and P1NP. Total or free testosterone was not independently associated with either bone marker. After the same adjustments, higher levels of both bone markers were significantly associated with lower QUS parameters and lower DXA-assessed bone density at the total hip and lumbar spine. CONCLUSIONS E(2), SHBG, IGF1 and PTH contribute significantly to the regulation/rate of bone turnover in middle-aged and older European men. Higher rates of bone remodelling are negatively associated with male bone health.
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Affiliation(s)
- Steven Boonen
- Division of Geriatric Medicine and Centre for Metabolic Bone Diseases, Katholieke Universiteit Leuven, UZ Leuven campus Gasthuisberg, Leuven, Belgium
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Laroche M. Heterogeneity of biological bone markers in idiopathic male osteoporosis. Rheumatol Int 2011; 32:2101-4. [PMID: 21499877 DOI: 10.1007/s00296-011-1930-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 03/27/2011] [Indexed: 11/29/2022]
Abstract
In men with idiopathic osteoporosis, histomorphometric studies reported both increased resorption and decreased remodeling. We aimed at examine bone remodeling in these patients by biological marker measurement. We compared pre-treatment carboxy-terminal cross-linking telopeptide of type I collagen (CTX) and bone alkaline phosphatase (bALP) levels in 49 men, mean age 59 ± 14 year, with idiopathic osteoporosis with fractures (40 patients) or osteoporosis diagnosed by densitometry (9 patients) with 50 age-matched controls. The influence of baseline remodeling level on alendronate efficacy was studied. Bone remodeling markers (CTX and bALP) did not significantly differ between patients and controls and were correlated in both groups. There was no correlation between these markers, vitamin D and PTH levels. Twenty-one patients underwent repeat densitometry after 1 year of alendronate (70 mg/week). Mean annual BMD increase, spine +4.1 ± 3.9%, and hip +1.5 ± 1.2% showed no correlation with baseline CTX. Bone remodeling is very heterogeneous and formation and resorption remain biologically coupled in both idiopathic male osteoporosis and controls. Baseline remodeling level does not affect the action of alendronate on BMD.
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Affiliation(s)
- Michel Laroche
- Centre de Rhumatologie, CHU Purpan, 1 Place du Dr Baylac, 31059, Toulouse Cedex, France.
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