1
|
Vanitchanont M, Vallibhakara SAO, Sophonsritsuk A, Vallibhakara O. Effects of Multispecies Probiotic Supplementation on Serum Bone Turnover Markers in Postmenopausal Women with Osteopenia: A Randomized, Double-Blind, Placebo-Controlled Trial. Nutrients 2024; 16:461. [PMID: 38337745 PMCID: PMC10857023 DOI: 10.3390/nu16030461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Probiotics have been found to have beneficial effects on bone metabolism. In this randomized, double-blind, placebo-controlled trial, the effects of multispecies probiotic supplementation on bone turnover markers were evaluated after 12 weeks. Forty postmenopausal women with osteopenia were included and randomly divided into two groups. The intervention group received multispecies probiotics, while the control group received identical placebo sachets daily. The baseline characteristics of both groups were similar. Still, the median serum bone resorption marker C-terminal telopeptide of type I collagen (CTX) was slightly higher in the multispecies probiotic group than in the placebo group (0.35 (0.12, 0.53) vs. 0.16 (0.06, 0.75); p-value = 0.004). After 12 weeks, the mean difference in serum CTX at baseline versus 12 weeks was significantly different between the multispecies probiotic and placebo groups (-0.06 (-0.29, 0.05) vs. 0.04 (-0.45, 0.67); p-value < 0.001). The multispecies probiotic group showed a significant decrease in serum CTX at 12 weeks compared with baseline (p-value 0.026). However, the placebo group showed no significant change in serum CTX (p-value 0.18). In conclusion, multispecies probiotics may have a preventive effect on bone through their antiresorptive effect in osteopenic postmenopausal women.
Collapse
Affiliation(s)
- Marut Vanitchanont
- Reproductive Endocrinology and Infertility Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (M.V.); (A.S.)
| | - Sakda Arj-Ong Vallibhakara
- Child Safety Promotion and Injury Prevention Research Center, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand;
| | - Areepan Sophonsritsuk
- Reproductive Endocrinology and Infertility Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (M.V.); (A.S.)
| | - Orawin Vallibhakara
- Reproductive Endocrinology and Infertility Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (M.V.); (A.S.)
| |
Collapse
|
2
|
Thorpe CR, Ucer Ozgurel S, Simko LC, Goldstein R, Grant GG, Pagani C, Hwang C, Vasquez K, Sorkin M, Vaishampayan A, Goverman J, Sheridan RL, Friedstat J, Schulz JT, Schneider JC, Levi B, Ryan CM. Investigation into Possible Association of Oxandrolone and Heterotopic Ossification Following Burn Injury. J Burn Care Res 2020; 40:398-405. [PMID: 31053861 DOI: 10.1093/jbcr/irz063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxandrolone, a testosterone analog, is used to counteract the catabolic effects of burn injury. Recent animal studies suggest a possible hormonal association with heterotopic ossification (HO) development postburn. This work examines oxandrolone administration and HO development by exploring historical clinical data bridging the introduction of oxandrolone into clinical practice. Additionally, we examine associations between oxandrolone administration and HO in a standardized mouse model of burn/trauma-related HO. Acutely burned adults admitted between 2000 and 2014, survived through discharge, and had a HO risk factor of 7 or higher were selected for analysis from a single burn center. Oxandrolone administration, clinical and demographic data, and elbow HO were recorded and were analyzed with logistic regression. Associations of oxandrolone with HO were examined in a mouse model. Mice were administered oxandrolone or vehicle control following burn/tenotomy to examine any potential effect of oxandrolone on HO and were analyzed by Student's t test. Subjects who received oxandrolone had a higher incidence of elbow HO than those that did not receive oxandrolone. However, when controlling for oxandrolone administration, oxandrolone duration, postburn day oxandrolone initiation, HO risk score category, age, sex, race, burn size, and year of injury, there was no significant difference between rates of elbow HO between the two populations. In agreement with the review, in the mouse model, while there was a trend toward the oxandrolone group developing a greater volume of HO, this did not reach statistical significance.
Collapse
Affiliation(s)
- Catherine R Thorpe
- Massachusetts General Hospital, Boston.,Shriners Hospitals for Children-Boston, Massachusetts
| | | | - Laura C Simko
- Shriners Hospitals for Children-Boston, Massachusetts.,Spaulding Rehabilitation Hospital, Charlestown, Massachusetts
| | | | - Gabrielle G Grant
- Massachusetts General Hospital, Boston.,Shriners Hospitals for Children-Boston, Massachusetts
| | | | | | | | | | | | - Jeremy Goverman
- Massachusetts General Hospital, Boston.,Harvard Medical School, Cambridge, Massachusetts
| | - Robert L Sheridan
- Massachusetts General Hospital, Boston.,Shriners Hospitals for Children-Boston, Massachusetts.,Harvard Medical School, Cambridge, Massachusetts
| | - Jonathan Friedstat
- Massachusetts General Hospital, Boston.,Shriners Hospitals for Children-Boston, Massachusetts.,Harvard Medical School, Cambridge, Massachusetts
| | - John T Schulz
- Massachusetts General Hospital, Boston.,Shriners Hospitals for Children-Boston, Massachusetts.,Harvard Medical School, Cambridge, Massachusetts
| | - Jeffrey C Schneider
- Massachusetts General Hospital, Boston.,Spaulding Rehabilitation Hospital, Charlestown, Massachusetts.,Harvard Medical School, Cambridge, Massachusetts
| | - Benjamin Levi
- Shriners Hospitals for Children-Boston, Massachusetts
| | - Colleen M Ryan
- Massachusetts General Hospital, Boston.,Shriners Hospitals for Children-Boston, Massachusetts.,Harvard Medical School, Cambridge, Massachusetts
| |
Collapse
|
3
|
Analysis of the Relationship between the Levels of Androgens and Biochemical Bone Markers in Men Aged 60-75 Years. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 17:ijerph17010106. [PMID: 31877849 PMCID: PMC6982106 DOI: 10.3390/ijerph17010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 11/16/2022]
Abstract
Introduction: The purpose of this study was to analyze the relationship between the parameters of bone turnover and the levels of hormonal parameters, such as total testosterone (TT), bioavailable and free testosterone (FT), and estradiol (E2) in men. Material and methods: The study group included 63 men with testosterone deficiency syndrome (TDS). The control group consisted of 112 patients without TDS. Enzyme-linked immunosorbent assay (ELISA) was used to determine the levels of osteocalcin (OC), parathyroid hormone (PTH), E2, sex hormone binding globulin (SHBG), dehydroepiandrosterone sulphate (DHEAS), insulin (I), Serum CrossLaps (CtX-I), human procollagen I N-terminal peptide (PINP), and TT. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry. Results: The groups with TSD and without TDS differed in terms of the following parameters: body weight (p = 0.001), BMI (p = 0.003), TT (p = 0.001), FT (p = 0.004), bioavailable testosterone (p = 0.001), E2 (p = 0.003), SHBG (p = 0.003), and PINP (p = 0.004). In the group without TDS, higher PINP levels were accompanied by higher levels of E2 (beta = 0.360, p = 0.002) and TT (beta = 0.389, p = 0.001). In the group without TDS, PINP was positively correlated with E2 (beta = 0.726, p <0.001). Patients with TDS had significantly lower PINP levels (p < 0.004). Conclusions: Analysis of sex hormones and biochemical bone markers in reflecting the quality of the bone tissue in men may suggest a relationship between these parameters. Nevertheless, further research based on a larger sample size is necessary to better describe this relationship.
Collapse
|
4
|
Thomas P. Membrane Androgen Receptors Unrelated to Nuclear Steroid Receptors. Endocrinology 2019; 160:772-781. [PMID: 30753403 DOI: 10.1210/en.2018-00987] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/05/2019] [Indexed: 01/08/2023]
Abstract
Rapid (nongenomic) membrane-initiated androgen actions have been described in nuclear androgen receptor-null cells. Four distinct proteins have been proposed as membrane androgen receptors (mARs) or sensors. Transient receptor potential melastatin 8 (TRPM8) is a calcium channel that acts as a pain receptor and mediates androgen- and menthol-induced increases in calcium levels and survival of prostate cancer cells. Testosterone (T) directly interacts with TRPM8, but extensive androgen receptor binding studies to confirm its role as an mAR are lacking. Oxoeicosanoid receptor 1 (OXER1) is highly expressed in prostate cancer tissues, and its major ligand, 5-oxoeicosatretraenoic acid (5-oxo-ETE), is a potent inducer of prostate cancer cell proliferation and survival. T competes for 5-oxo-ETE binding to OXER1 and antagonizes 5-oxo-ETE-mediated inhibition of cAMP production. However, OXER1 does not meet a traditional criterion for its designation as an mAR because T treatment alone does not alter cAMP signaling. GPRC6A is a class C G protein-coupled receptor activated by l-α-amino acids and is modulated by calcium. Although there has been controversy over the proposed role of T as a GPRC6A ligand, androgen induction of GPRC6A signaling has recently been confirmed by several researchers. ZIP9 belongs to the zinc transporter ZIP (SLC39A) family and displays specific T binding characteristic of an mAR. ZIP9 mediates androgen-dependent intracellular signaling and apoptosis of breast and prostate cancer cells through activation of G proteins. Androgen-signaling functions of ZIP9 have been confirmed in other cells, but the overall importance of ZIP9 in androgen physiology remains unclear. Here, the current status of these four proteins as mARs or sensors is critically reviewed.
Collapse
Affiliation(s)
- Peter Thomas
- University of Texas at Austin Marine Science Institute, Port Aransas, Texas
| |
Collapse
|
5
|
Yu J, Zhou Y, Zhang T, Lv J, Firth F, Zhao X, Xu X, Mei L. Effect of combined oral contraceptives on orthodontic tooth movement in a female rat model. AUSTRALASIAN ORTHODONTIC JOURNAL 2019. [DOI: 10.21307/aoj-2020-041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
Background
To investigate the effect of combined oral contraceptives (COC) on orthodontic tooth movement (OTM) and periodontal remodelling in a female rat model.
Methods
A total of 80 three-month-old female, Sprague-Dawley rats were randomly divided into experimental and control groups. The maxillary first molars were moved mesially using nickel-titanium coil springs (50 g force). The experimental group (N = 40) ingested 1.5 ml COC (Marvelon, 0.12 mg/d, N.V. Organon, Oss, The Netherlands) daily. The control group (N = 40) ingested 1.5 ml saline (0.9% sodium chloride) daily. After 7, 14, 21 and 28 days of force application, 10 rats in each group were euthanased and a vernier calliper was used to measure the orthodontic movement of the first molar. Root resorption at pressure areas was assessed by H and E staining. Micro-CT was used to detect alveolar bone mineral density.
Results and conclusion
The amount of OTM in the experimental group (0.46 ± 0.16 mm) was significantly less than in the control group (0.85 ± 0.25 mm; p = 0.003) during the 28 days of observation. There were significantly smaller (p = 0.002) root resorption lacunae in the experimental group (111710 ± 4037 pixels) compared with the control group (204962 ± 21318 pixels) after 28 days. There was no statistically significant difference in the bone mineral density between the experimental and control groups throughout the study period (p > 0.05 at each time point). The short-term administration of COC may retard tooth movement and reduce the level of root resorption during OTM in female rats.
Collapse
Affiliation(s)
- Jinghong Yu
- * Department of Orthodontics , Hospital of Stomatology , Orofacial Reconstruction and Regeneration Laboratory , Southwest Medical University , Luzhou , People’s Republic of China
| | - Yifei Zhou
- † Department of Stomatology , People’s Hospital of Langzhong City , Nanchong , People’s Republic of China
| | - Tao Zhang
- + Department of Stomatology , The Third People’s Hospital of Dongguan City , Dongguan , People’s Republic of China
| | - Jialing Lv
- * Department of Orthodontics , Hospital of Stomatology , Orofacial Reconstruction and Regeneration Laboratory , Southwest Medical University , Luzhou , People’s Republic of China
| | - Fiona Firth
- ± Discipline of Orthodontics , Department of Oral Science , Sir John Walsh Research Institute , Faculty of Dentistry , University of Otago , Dunedin , New Zealand
| | - Xian Zhao
- * Department of Orthodontics , Hospital of Stomatology , Orofacial Reconstruction and Regeneration Laboratory , Southwest Medical University , Luzhou , People’s Republic of China
| | - Xiaomei Xu
- * Department of Orthodontics , Hospital of Stomatology , Orofacial Reconstruction and Regeneration Laboratory , Southwest Medical University , Luzhou , People’s Republic of China
| | - Li Mei
- ± Discipline of Orthodontics , Department of Oral Science , Sir John Walsh Research Institute , Faculty of Dentistry , University of Otago , Dunedin , New Zealand
| |
Collapse
|
6
|
Obri A, Khrimian L, Karsenty G, Oury F. Osteocalcin in the brain: from embryonic development to age-related decline in cognition. Nat Rev Endocrinol 2018; 14:174-182. [PMID: 29376523 PMCID: PMC5958904 DOI: 10.1038/nrendo.2017.181] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A remarkable, unexpected aspect of the bone-derived hormone osteocalcin is that it is necessary for both brain development and brain function in the mouse, as its absence results in a profound deficit in spatial learning and memory and an exacerbation of anxiety-like behaviour. The regulation of cognitive function by osteocalcin, together with the fact that its circulating levels decrease in midlife compared with adolescence in all species tested, raised the prospect that osteocalcin might be an anti-geronic hormone that could prevent age-related cognitive decline. As presented in this Review, recent data indicate that this is indeed the case and that osteocalcin is necessary for the anti-geronic activity recently ascribed to the plasma of young wild-type mice. The diversity and amplitude of the functions of osteocalcin in the brain, during development and postnatally, had long called for the identification of its receptor in the brain, which was also recently achieved. This Review presents our current understanding of the biology of osteocalcin in the brain, highlighting the bony vertebrate specificity of the regulation of cognitive function and pointing toward where therapeutic opportunities might exist.
Collapse
Affiliation(s)
- Arnaud Obri
- Department of Genetics and Development, Columbia University Medical Center, 701 W 168th St. Rm 1602, New York City, New York 10032, USA
| | - Lori Khrimian
- Department of Genetics and Development, Columbia University Medical Center, 701 W 168th St. Rm 1602, New York City, New York 10032, USA
| | - Gerard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, 701 W 168th St. Rm 1602, New York City, New York 10032, USA
| | - Franck Oury
- Institut Necker-Enfants Malades, CS 61431, Paris, France Institut National de la Santé et de la Recherche Médicale, U1151, F-75014 Paris, France Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France
| |
Collapse
|
7
|
Yang Y, Bai Y, He Y, Zhao Y, Chen J, Ma L, Pan Y, Hinten M, Zhang J, Karnes RJ, Kohli M, Westendorf JJ, Li B, Zhu R, Huang H, Xu W. PTEN Loss Promotes Intratumoral Androgen Synthesis and Tumor Microenvironment Remodeling via Aberrant Activation of RUNX2 in Castration-Resistant Prostate Cancer. Clin Cancer Res 2018; 24:834-846. [PMID: 29167276 PMCID: PMC5816982 DOI: 10.1158/1078-0432.ccr-17-2006] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 11/06/2017] [Accepted: 11/16/2017] [Indexed: 01/10/2023]
Abstract
Purpose: Intratumoral androgen synthesis (IAS) is a key mechanism promoting androgen receptor (AR) reactivation and antiandrogen resistance in castration-resistant prostate cancer (CRPC). However, signaling pathways driving aberrant IAS remain poorly understood.Experimental Design: The effect of components of the AKT-RUNX2-osteocalcin (OCN)-GPRC6A-CREB signaling axis on expression of steroidogenesis genes CYP11A1 and CYP17A1 and testosterone level were examined in PTEN-null human prostate cancer cell lines. Pten knockout mice were used to examine the effect of Runx2 heterozygous deletion or abiraterone acetate (ABA), a prodrug of the CYP17A1 inhibitor abiraterone on Cyp11a1 and Cyp17a1 expression, testosterone level and tumor microenvironment (TME) remodeling in vivoResults: We uncovered that activation of the AKT-RUNX2-OCN-GPRC6A-CREB signaling axis induced expression of CYP11A1 and CYP17A1 and testosterone production in PTEN-null prostate cancer cell lines in culture. Deletion of Runx2 in Pten homozygous knockout prostate tumors decreased Cyp11a1 and Cyp17a1 expression, testosterone level, and tumor growth in castrated mice. ABA treatment also inhibited testosterone synthesis and alleviated Pten loss-induced tumorigenesis in vivoPten deletion induced TME remodeling, but Runx2 heterozygous deletion or ABA treatment reversed the effect of Pten loss by decreasing expression of the collagenase Mmp9.Conclusions: Abnormal RUNX2 activation plays a pivotal role in PTEN loss-induced IAS and TME remodeling, suggesting that the identified signaling cascade represents a viable target for effective treatment of PTEN-null prostate cancer, including CRPC. Clin Cancer Res; 24(4); 834-46. ©2017 AACR.
Collapse
Affiliation(s)
- Yinhui Yang
- Department of Urology, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Yang Bai
- Department of Urology, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Yundong He
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Yu Zhao
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Jiaxiang Chen
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Linlin Ma
- Department of Urology, University of Kansas Medical Center, Kansas City, Kansas
| | - Yunqian Pan
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Michael Hinten
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Jun Zhang
- Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - R Jeffrey Karnes
- Department of Urology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Manish Kohli
- Department of Oncology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Jennifer J Westendorf
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, Minnesota
- Department of Orthopedic Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Benyi Li
- Department of Urology, University of Kansas Medical Center, Kansas City, Kansas
| | - Runzhi Zhu
- Department of Urology, University of Kansas Medical Center, Kansas City, Kansas.
- Department for Cell Therapy, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Haojie Huang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota.
- Department of Urology, Mayo Clinic College of Medicine, Rochester, Minnesota
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Wanhai Xu
- Department of Urology, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
| |
Collapse
|
8
|
Lin X, Hanson E, Betik AC, Brennan-Speranza TC, Hayes A, Levinger I. Hindlimb Immobilization, But Not Castration, Induces Reduction of Undercarboxylated Osteocalcin Associated With Muscle Atrophy in Rats. J Bone Miner Res 2016; 31:1967-1978. [PMID: 27291707 DOI: 10.1002/jbmr.2884] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/01/2016] [Accepted: 06/04/2016] [Indexed: 11/10/2022]
Abstract
Undercarboxylated osteocalcin (ucOC) has been implicated in skeletal muscle insulin sensitivity and function. However, whether muscle mass and strength loss in atrophic conditions is related to a reduction in ucOC is not clear. We hypothesized that both immobilization and testosterone depletion would lead to reductions in ucOC, associated with not only the degree of muscle atrophy but also changes to atrophy signaling pathway(s) in male rats. We subjected 8-week-old male Fischer (F344) rats to 7 days of hindlimb immobilization 10 days after castration surgery. Hindlimb immobilization, but not castration, resulted in a significant reduction in ucOC (30%) and lower ucOC was correlated with the degree of muscle loss and muscle weakness. ucOC levels, the expression of ucOC-sensitive receptor G protein-coupled receptor, class C, group 6, member A (GPRC6A), as well as the activity of extracellular signal-regulated kinase (ERK) and 5' adenosine monophosphate-activated protein kinase (AMPK) were associated with the expression and activity of a number of proteins in the mammalian target of rapamycin complex 1 (mTORC1) and Forkhead Box O (FOXO) signaling pathways in a muscle type-specific manner. These data suggest that ucOC may have other effects on skeletal muscle in addition to its insulin sensitizing effect. © 2016 American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Xuzhu Lin
- Clinical Exercise Science Research Program, Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia
| | - Erik Hanson
- Clinical Exercise Science Research Program, Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia.,College of Health and Biomedicine, Victoria University, Melbourne, Australia
| | - Andrew C Betik
- Clinical Exercise Science Research Program, Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia.,College of Health and Biomedicine, Victoria University, Melbourne, Australia
| | - Tara C Brennan-Speranza
- Department of Physiology and Bosch Institute for Medical Research, University of Sydney, Australia
| | - Alan Hayes
- Clinical Exercise Science Research Program, Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia.,College of Health and Biomedicine, Victoria University, Melbourne, Australia.,Australian Institute for Musculoskeletal Science, Western Health, Melbourne, Australia
| | - Itamar Levinger
- Clinical Exercise Science Research Program, Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, Australia
| |
Collapse
|
9
|
Gaffney CD, Pagano MJ, Kuker AP, Stember DS, Stahl PJ. Osteoporosis and Low Bone Mineral Density in Men with Testosterone Deficiency Syndrome. Sex Med Rev 2015; 3:298-315. [PMID: 27784602 DOI: 10.1002/smrj.63] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Testosterone deficiency syndrome (TDS) is a risk factor for low bone mineral density (BMD) and osteoporosis. Knowledge of the relationship between TDS and bone health, as well as the practical aspects of how to diagnose and treat low BMD, is therefore of practical importance to sexual medicine practitioners. AIM The aim of this study was to review the physiologic basis and clinical evidence of the relationship between TDS and bone health; and to provide a practical, evidence-based algorithm for the diagnosis and management of low BMD in men with TDS. METHODS Method used was a review of relevant publications in PubMed. MAIN OUTCOME MEASURES Pathophysiology of low BMD in TDS, morbidity, and mortality of osteoporosis in men, association between TDS and osteoporosis, indications for dual X-ray absorptiometry (DXA) scanning in TDS, evidence for testosterone replacement therapy (TRT) in men with osteoporosis, treatment for osteoporosis in the setting of TDS. RESULTS Sex hormones play a pleomorphic role in maintenance of BMD. TDS is associated with increased risk of osteoporosis and osteopenia, both of which contribute to morbidity and mortality in men. DXA scanning is indicated in men older than 50 years with TDS, and in younger men with longstanding TDS. Men with TDS and osteoporosis should be treated with anti-osteoporotic agents and TRT should be highly considered. Men with osteopenia should be stratified by fracture risk. Those at high risk should be treated with anti-osteoporotic agents with strong consideration of TRT; while those at low risk should be strongly considered for TRT, which has a beneficial effect on BMD. CONCLUSION Low BMD is a prevalent and treatable cause of morbidity and mortality in men with TDS. Utilization of a practical, evidence-based approach to diagnosis and treatment of low BMD in men with TDS enables sexual medicine practitioners to make a meaningful impact on patient quality of life and longevity. Gaffney CD, Pagano MJ, Kuker AP, Stember DS, and Stahl PJ. Osteoporosis and low bone mineral density in men with testosterone deficiency syndrome.
Collapse
Affiliation(s)
| | - Matthew J Pagano
- Department of UrologyColumbia University Medical CenterNew YorkNYUSA
| | - Adriana P Kuker
- Division of EndocrinologyDepartment of MedicineColumbia University Medical CenterNew YorkNYUSA
| | - Doron S Stember
- Department of UrologyIcahn School of Medicine at Mount SinaiNew YorkNYUSA
| | - Peter J Stahl
- Department of UrologyColumbia University Medical CenterNew YorkNYUSA.
| |
Collapse
|
10
|
Tan LJ, Wang ZE, Wu KH, Chen XD, Zhu H, Lu S, Tian Q, Liu XG, Papasian CJ, Deng HW. Bivariate Genome-Wide Association Study Implicates ATP6V1G1 as a Novel Pleiotropic Locus Underlying Osteoporosis and Age at Menarche. J Clin Endocrinol Metab 2015; 100:E1457-66. [PMID: 26312577 PMCID: PMC4702453 DOI: 10.1210/jc.2015-2095] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Age at menarche (AAM) is determined by the overall duration of endocrine-tissue sex hormone exposure levels. Osteoporosis, the most common metabolic bone disease, is characterized primarily by reduced bone mineral density (BMD) and an increased risk of low trauma fractures. Bone was an endocrine organ regulating the synthesis and secretion of sex steroid hormones. The mutual dependence between bone and gonads underscore the importance of genetic approaches to identify novel pleiotropic genetic factors coregulating BMD and AAM. In this study, we performed a bivariate genome-wide association study (GWAS) to explore novel ethnic common loci and/or genes that may influence both AAM and BMD. METHODS We analyzed genotyping data available for 826 unrelated Chinese subjects using genome-wide human genotyping arrays. After quality control, a total of 702 413 single-nucleotide polymorphisms (SNPs) were tested for association using a bivariate linear regression model. The interesting SNPs were replicated in three independent cohorts including 1728 unrelated Caucasians, 709 African-Americans, and 408 Hispanic-Americans. RESULTS We found four SNPs (rs10817638, rs7851259, rs10982287, and rs4979427), located upstream of the ATP6V1G1 gene, were bivariately associated with hip BMD-AAM (P = 4.90 × 10(-7), P = 1.07 × 10(-6), P = 1.28 × 10(-5), and P = 5.42 × 10(-5), respectively). These four SNPs were replicated in African-Americans, with corresponding values of P = 1.95 × 10(-2), P = 3.18 × 10(-2), P = 2.57 × 10(-2), and P = 3.64 × 10(-2), respectively. rs10817638 and rs10982287 were further replicated in Caucasians (P = 1.76 × 10(-2) and P = 9.42 × 10(-3), respectively) and Hispanic-Americans (P = 8.37 × 10(-3) and P = 1.52 × 10(-3), respectively). Meta-analyses yielded stronger association signals for rs10817638 and rs10982287 with combined values of P = 3.02 × 10(-9) and P = 3.49 × 10(-9), respectively. CONCLUSIONS Our study implicated ATP6V1G1 as a novel pleiotropic gene underlying variation of both BMD and AAM. The findings enhance our knowledge of genetic associations between BMD and AAM and provide a rationale for subsequent functional studies of these implicated genes in the pathophysiology of diseases/traits, such as osteoporosis and AAM.
Collapse
Affiliation(s)
- Li-Jun Tan
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Zhuo-Er Wang
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Ke-Hao Wu
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Xiang-Ding Chen
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Hu Zhu
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Shan Lu
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Qing Tian
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Xiao-Gang Liu
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Christopher J Papasian
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| | - Hong-Wen Deng
- Laboratory of Molecular and Statistical Genetics (L.-J.T., Z.-E.W., K.-H.W., X.-D.C., H.Z., S.L., H.-W.D.), College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; Center of Bioinformatics and Genomics (Q.T., H.-W.D.), School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112; School of Life Science and Technology (X.-G.L.), Xi'an Jiaotong University, Xi'an, Shanxi, People's Republic of China; and Department of Basic Medical Science (C.J.P.), School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri 64108
| |
Collapse
|
11
|
Abstract
In the past 15 years, the field of physiology has been radically challenged by landmark studies using novel tools of genetic engineering. Particular to our interest, the reciprocal interactions between the skeleton and the nervous system were shown to be major ones. The demonstration that brain, via multiple pathways, is a powerful regulator of bone growth, has shed light on an important central regulation of skeletal homeostasis. More recently, it was shown that bone might return the favor to the brain through the secretion of a bone-derived hormone, osteocalcin. The skeleton influences development and cognitive functions of the central nervous system at different stages throughout life suggesting an intimate dialogue between bone and brain.
Collapse
Affiliation(s)
- Alexandre Chamouni
- Centre de Médecine Moléculaire, Institut Necker-Enfants Malades (INEM), 75014, Paris, France
| | | | | |
Collapse
|