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O'Leary TJ, Jackson S, Izard RM, Walsh NP, Carswell AT, Oliver SJ, Tang JCY, Fraser WD, Greeves JP. Iron status is associated with tibial structure and vitamin D metabolites in healthy young men. Bone 2024; 186:117145. [PMID: 38838798 DOI: 10.1016/j.bone.2024.117145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/16/2024] [Accepted: 06/01/2024] [Indexed: 06/07/2024]
Abstract
The influence of iron on collagen synthesis and vitamin D metabolism has implications for bone health. This cross-sectional observational study investigated associations between markers of iron status and tibial structure, vitamin D metabolites, and circulating biochemical markers of bone metabolism in young healthy men. A total of 343 male British Army recruits participated (age 22 ± 3 y, height 1.77 ± 0.06 m, body mass 75.5 ± 10.1 kg). Circulating biochemical markers of iron status, vitamin D metabolites, and bone metabolism, and tibial structure and density by high-resolution peripheral quantitative computed tomography scans (HRpQCT) were measured in participants during week 1 of basic military training. Associations between markers of iron status and HRpQCT outcomes, bone metabolism, and vitamin D metabolites were tested, controlling for age, height, lean body mass, and childhood exercise volume. Higher ferritin was associated with higher total, trabecular, and cortical volumetric bone mineral density, trabecular volume, cortical area and thickness, stiffness, and failure load (all p ≤ 0.037). Higher soluble transferrin receptor (sTfR) was associated with lower trabecular number, and higher trabecular thickness and separation, cortical thickness, and cortical pore diameter (all p ≤ 0.033). Higher haemoglobin was associated with higher cortical thickness (p = 0.043). Higher ferritin was associated with lower βCTX, PINP, total 25(OH)D, and total 24,25(OH)2D, and higher 1,25(OH)2D:24,25(OH)2D ratio (all p ≤ 0.029). Higher sTfR was associated with higher PINP, total 25(OH)D, and total 24,25(OH)2D (all p ≤ 0.025). The greater density, size, and strength of the tibia, and lower circulating concentrations of markers of bone resorption and formation with better iron stores (higher ferritin) are likely as a result of the direct role of iron in collagen synthesis.
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Affiliation(s)
- Thomas J O'Leary
- Army Health and Performance Research, Army Headquarters, Andover, United Kingdom; Division of Surgery and Interventional Science, UCL, London, United Kingdom
| | - Sarah Jackson
- Army Health and Performance Research, Army Headquarters, Andover, United Kingdom
| | - Rachel M Izard
- Defence Science and Technology, Ministry of Defence, Porton Down, United Kingdom
| | - Neil P Walsh
- Faculty of Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Alexander T Carswell
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom; School of Health Sciences, University of East Anglia, Norwich, United Kingdom
| | - Samuel J Oliver
- College of Human Sciences, Bangor University, Bangor, United Kingdom
| | - Jonathan C Y Tang
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom; Norfolk and Norwich University Hospital, Norwich, United Kingdom
| | - William D Fraser
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom; Norfolk and Norwich University Hospital, Norwich, United Kingdom
| | - Julie P Greeves
- Army Health and Performance Research, Army Headquarters, Andover, United Kingdom; Division of Surgery and Interventional Science, UCL, London, United Kingdom; Norwich Medical School, University of East Anglia, Norwich, United Kingdom.
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Pivonka P, Calvo-Gallego JL, Schmidt S, Martínez-Reina J. Advances in mechanobiological pharmacokinetic-pharmacodynamic models of osteoporosis treatment - Pathways to optimise and exploit existing therapies. Bone 2024; 186:117140. [PMID: 38838799 DOI: 10.1016/j.bone.2024.117140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/17/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
Osteoporosis (OP) is a chronic progressive bone disease which is characterised by reduction of bone matrix volume and changes in the bone matrix properties which can ultimately lead to bone fracture. The two major forms of OP are related to aging and/or menopause. With the worldwide increase of the elderly population, particularly age-related OP poses a serious health issue which puts large pressure on health care systems. A major challenge for development of new drug treatments for OP and comparison of drug efficacy with existing treatments is due to current regulatory requirements which demand testing of drugs based on bone mineral density (BMD) in phase 2 trials and fracture risk in phase 3 trials. This requires large clinical trials to be conducted and to be run for long time periods, which is very costly. This, together with the fact that there are already many drugs available for treatment of OP, makes the development of new drugs inhibitive. Furthermore, an increased trend of the use of different sequential drug therapies has been observed in OP management, such as sequential anabolic-anticatabolic drug treatment or switching from one anticatabolic drug to another. Running clinical trials for concurrent and sequential therapies is neither feasible nor practical due to large number of combinatorial possibilities. In silico mechanobiological pharmacokinetic-pharmacodynamic (PK-PD) models of OP treatments allow predictions beyond BMD, i.e. bone microdamage and degree of mineralisation can also be monitored. This will help to inform clinical drug usage and development by identifying the most promising scenarios to be tested clinically (confirmatory trials rather than exploratory only trials), optimise trial design and identify subgroups of the population that show benefit-risk profiles (both good and bad) that are different from the average patient. In this review, we provide examples of the predictive capabilities of mechanobiological PK-PD models. These include simulation results of PMO treatment with denosumab, implications of denosumab drug holidays and coupling of bone remodelling models with calcium and phosphate systems models that allows to investigate the effects of co-morbidities such as hyperparathyroidism and chronic kidney disease together with calcium and vitamin D status on drug efficacy.
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Affiliation(s)
- Peter Pivonka
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, QLD 4000, Australia.
| | - José Luis Calvo-Gallego
- Departmento de Ingeniería Mecánica y Fabricación, Universidad de Sevilla, Seville 41092, Spain
| | - Stephan Schmidt
- Center for Pharmacometrics and Systems Pharmacology, Department of Pharmaceutics, College of Pharmacy, University of Florida, Orlando, FL 32827, USA
| | - Javier Martínez-Reina
- Departmento de Ingeniería Mecánica y Fabricación, Universidad de Sevilla, Seville 41092, Spain
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Chatrieh L, Pinti A, El Hage R. Sprinting Performance Correlates with Composite Indices of Femoral Neck Strength in Young Men. J Clin Densitom 2024; 27:101506. [PMID: 38943793 DOI: 10.1016/j.jocd.2024.101506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 06/13/2024] [Indexed: 07/01/2024]
Affiliation(s)
- Lara Chatrieh
- Université Polytechnique Hauts-de-France, INSA Hauts-de-France, LARSH - Laboratoire de Recherche, Sociétés & Humanités, Valenciennes F-59313, France
| | - Antonio Pinti
- Université Polytechnique Hauts-de-France, INSA Hauts-de-France, LARSH - Laboratoire de Recherche, Sociétés & Humanités, Valenciennes F-59313, France
| | - Rawad El Hage
- Department of Physical Education, Faculty of Arts and Sciences, University of Balamand, PO Box 100, Tripoli, Lebanon.
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Biz C, Khamisy-Farah R, Puce L, Szarpak L, Converti M, Ceylan Hİ, Crimì A, Bragazzi NL, Ruggieri P. Investigating and Practicing Orthopedics at the Intersection of Sex and Gender: Understanding the Physiological Basis, Pathology, and Treatment Response of Orthopedic Conditions by Adopting a Gender Lens: A Narrative Overview. Biomedicines 2024; 12:974. [PMID: 38790936 PMCID: PMC11118756 DOI: 10.3390/biomedicines12050974] [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: 03/30/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
In the biomedical field, the differentiation between sex and gender is crucial for enhancing the understanding of human health and personalizing medical treatments, particularly within the domain of orthopedics. This distinction, often overlooked or misunderstood, is vital for dissecting and treating musculoskeletal conditions effectively. This review delves into the sex- and gender-specific physiology of bones, cartilage, ligaments, and tendons, highlighting how hormonal differences impact the musculoskeletal system's structure and function, and exploring the physiopathology of orthopedic conditions from an epidemiological, molecular, and clinical perspective, shedding light on the discrepancies in disease manifestation across sexes. Examples such as the higher rates of deformities (adolescent idiopathic and adult degenerative scoliosis and hallux valgus) in females and osteoporosis in postmenopausal women illustrate the critical role of sex and gender in orthopedic health. Additionally, the review addresses the morbidity-mortality paradox, where women, despite appearing less healthy on frailty indexes, show lower mortality rates, highlighting the complex interplay between biological and social determinants of health. Injuries and chronic orthopedic conditions such osteoarthritis exhibit gender- and sex-specific prevalence and progression patterns, necessitating a nuanced approach to treatment that considers these differences to optimize outcomes. Moreover, the review underscores the importance of recognizing the unique needs of sexual minority and gender-diverse individuals in orthopedic care, emphasizing the impact of gender-affirming hormone therapy on aspects like bone health and perioperative risks. To foster advancements in sex- and gender-specific orthopedics, we advocate for the strategic disaggregation of data by sex and gender and the inclusion of "Sexual Orientation and Gender Identity" (SOGI) data in research and clinical practice. Such measures can enrich clinical insights, ensure tailored patient care, and promote inclusivity within orthopedic treatments, ultimately enhancing the precision and effectiveness of care for diverse patient populations. Integrating sex and gender considerations into orthopedic research and practice is paramount for addressing the complex and varied needs of patients. By embracing this comprehensive approach, orthopedic medicine can move towards more personalized, effective, and inclusive treatment strategies, thereby improving patient outcomes and advancing the field.
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Affiliation(s)
- Carlo Biz
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, 35128 Padova, Italy; (A.C.); (P.R.)
| | - Rola Khamisy-Farah
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel;
- Clalit Health Service, Akko 2412001, Israel
| | - Luca Puce
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, 16132 Genoa, Italy;
| | - Lukasz Szarpak
- Department of Clinical Research and Development, LUXMED Group, 02-676 Warsaw, Poland;
- Henry JN Taub Department of Emergency Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Manlio Converti
- Department of Mental Health, Local Health Unit ASL Napoli 2 Nord, 80027 Naples, Italy;
| | - Halil İbrahim Ceylan
- Department of Physical Education of Sports Teaching, Faculty of Kazim Karabekir Education, Atatürk University, Erzurum 25030, Turkey;
| | - Alberto Crimì
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, 35128 Padova, Italy; (A.C.); (P.R.)
| | - Nicola Luigi Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON M3J 1P3, Canada
- Department of Food and Drugs, University of Parma, 43125 Parma, Italy
| | - Pietro Ruggieri
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, 35128 Padova, Italy; (A.C.); (P.R.)
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Słojewska K, Galbarczyk A, Klimek M, Tubek-Krokosz A, Krzych-Miłkowska K, Szklarczyk J, Mijas M, Ścibor M, Jasienska G. Higher number of steps is related to lower endogenous progesterone but not estradiol levels in women. PLoS One 2024; 19:e0299580. [PMID: 38573970 PMCID: PMC10994375 DOI: 10.1371/journal.pone.0299580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/13/2024] [Indexed: 04/06/2024] Open
Abstract
OBJECTIVES Sex steroid hormones are important not only for reproduction but also for many aspects of women's health, including the risk of breast cancer. Physical activity has been shown to influence sex hormone levels in women. This study aimed to investigate a relationship between the average daily number of steps and the sex hormone (estradiol and progesterone) levels in premenopausal women. MATERIALS AND METHODS Data were collected from 85 healthy, urban women of reproductive age who performed at least 180 minutes/week of moderate physical activity for two complete menstrual cycles. Physical activity was measured using wrist bands. Estradiol and progesterone concentrations were measured in daily-collected saliva samples in the second menstrual cycle. RESULTS There was a significant negative association between the average number of steps taken daily and salivary progesterone levels after adjusting for potential confounding factors (age, BMI). Women who took more than 10,000 steps a day had significantly lower progesterone levels compared to women who took less than 10,000 steps. The association between physical activity and estradiol levels was statistically insignificant. DISCUSSION Our results indicate that taking at least 10,000 steps a day reduces progesterone levels, but this intensity of physical activity may not be high enough to affect estradiol levels. Daily step tracking is a valuable element of health promotion, but currently recommended levels of physical activity may not be high enough for healthy premenopausal women to significantly reduce both sex hormone levels and thus their risk of postmenopausal breast cancer.
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Affiliation(s)
- Kinga Słojewska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
- Jagiellonian University Medical College, Doctoral School of Medical and Health Sciences, Krakow, Poland
| | - Andrzej Galbarczyk
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
- Department of Human Behavior, Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Magdalena Klimek
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Tubek-Krokosz
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
- Jagiellonian University Medical College, Doctoral School of Medical and Health Sciences, Krakow, Poland
| | - Karolina Krzych-Miłkowska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Joanna Szklarczyk
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Magdalena Mijas
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Monika Ścibor
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Grazyna Jasienska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
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O'Leary TJ, Izard RM, Tang JCY, Fraser WD, Greeves JP. Hormonal contraceptive use is associated with altered bone structural and metabolic responses to military training in women: An observational cohort study. Bone 2024; 181:117012. [PMID: 38216077 DOI: 10.1016/j.bone.2024.117012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
Military training increases tibial density and size. Female sex hormones may influence the adaption of bone to loading, but it is unknown if women using different hormonal contraceptives adapt similarly to military training. One hundred and sixteen women (57 women not using hormonal contraceptives [non-users], 38 combined oral contraceptive pill [COCP] users, 21 depot medroxyprogesterone acetate [DMPA] users) completed this study. Tibial volumetric bone mineral density (vBMD) and geometry were measured by peripheral quantitative computed tomography (4 %, 14 %, 38 %, and 66 % sites) at the start (week 1) and end (week 14) of British Army basic training. Circulating markers of bone and calcium metabolism were measured at weeks 1, 2, 4, 6, 10, and 14. Training increased trabecular vBMD at the 4 % site, periosteal perimeter at the 14 % and 66 % sites, and total area, cortical area, cortical thickness, and bone strength at all sites (0.1 to 1.6 %, p ≤ 0.009), with no differences between hormonal contraceptive groups (p ≥ 0.127). Trabecular vBMD increased at the 14 % site in non-users (0.8 %, p = 0.005), but not in COCP or DMPA users (p ≥ 0.205). Periosteal perimeter increased at the 38 % site in COCP (0.4 %, p < 0.001) and DMPA (0.5 %, p < 0.001) users, but not in non-users (p = 0.058). Training had no effect on periosteal perimeter at the 4 % site or cortical vBMD or endosteal perimeter at any site (p ≥ 0.168). βCTX decreased and PINP increased during training with no difference between hormonal contraceptive groups. Training increased iPTH in non-users, but not COCP or DMPA users. Hormonal contraceptives may exert site-specific effects on the mechanobiology of bone, with higher endogenous oestradiol promoting trabecularisation and inhibiting periosteal expansion in non-users compared with hormonal contraceptive users.
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Affiliation(s)
- Thomas J O'Leary
- Army Health and Performance Research, Army HQ, Andover, UK; Division of Surgery and Interventional Science, UCL, London, UK
| | | | - Jonathan C Y Tang
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK; Clinical Biochemistry, Departments of Laboratory Medicine and Departments of Diabetes and Endocrinology, Norfolk and Norwich University Hospital, Norwich, UK
| | - William D Fraser
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK; Clinical Biochemistry, Departments of Laboratory Medicine and Departments of Diabetes and Endocrinology, Norfolk and Norwich University Hospital, Norwich, UK
| | - Julie P Greeves
- Army Health and Performance Research, Army HQ, Andover, UK; Division of Surgery and Interventional Science, UCL, London, UK; Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich, UK.
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Burdick LN, DelVichio AH, Hanson LR, Griffith BB, Bouchard KR, Hunter JW, Goldhamer DJ. Sex as a Critical Variable in Basic and Pre-Clinical Studies of Fibrodysplasia Ossificans Progressiva. Biomolecules 2024; 14:177. [PMID: 38397414 PMCID: PMC10886767 DOI: 10.3390/biom14020177] [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: 12/23/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Heterotopic ossification (HO) is most dramatically manifested in the rare and severely debilitating disease, fibrodysplasia ossificans progressiva (FOP), in which heterotopic bone progressively accumulates in skeletal muscles and associated soft tissues. The great majority of FOP cases are caused by a single amino acid substitution in the type 1 bone morphogenetic protein (BMP) receptor ACVR1, a mutation that imparts responsiveness to activin A. Although it is well-established that biological sex is a critical variable in a range of physiological and disease processes, the impact of sex on HO in animal models of FOP has not been explored. We show that female FOP mice exhibit both significantly greater and more variable HO responses after muscle injury. Additionally, the incidence of spontaneous HO was significantly greater in female mice. This sex dimorphism is not dependent on gonadally derived sex hormones, and reciprocal cell transplantations indicate that apparent differences in osteogenic activity are intrinsic to the sex of the transplanted cells. By circumventing the absolute requirement for activin A using an agonist of mutant ACVR1, we show that the female-specific response to muscle injury or BMP2 implantation is dependent on activin A. These data identify sex as a critical variable in basic and pre-clinical studies of FOP.
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Affiliation(s)
- Lorraine N. Burdick
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - Amanda H. DelVichio
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - L. Russell Hanson
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - Brenden B. Griffith
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
| | - Keith R. Bouchard
- Alexion Pharmaceuticals Inc., 100 College Street, New Haven, CT 06510, USA; (K.R.B.); (J.W.H.)
| | - Jeffrey W. Hunter
- Alexion Pharmaceuticals Inc., 100 College Street, New Haven, CT 06510, USA; (K.R.B.); (J.W.H.)
| | - David J. Goldhamer
- Department of Molecular & Cell Biology, University of Connecticut Stem Cell Institute, University of Connecticut, Storrs, CT 06269, USA; (L.N.B.); (A.H.D.); (L.R.H.); (B.B.G.)
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Sun K, Li M, Wu Y, Wu Y, Zeng Y, Zhou S, Peng L, Shen B. Exploring Causal Relationships between Leukocyte Telomere Length, Sex Hormone-Binding Globulin Levels, and Osteoporosis Using Univariable and Multivariable Mendelian Randomization. Orthop Surg 2024; 16:320-328. [PMID: 38084376 PMCID: PMC10834216 DOI: 10.1111/os.13947] [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: 07/27/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 02/03/2024] Open
Abstract
OBJECTIVE Recent evidence supports that leukocyte telomere length (LTL) may be positively associated with healthy living and inversely correlated with the risk of age-related diseases, including osteoporosis. Furthermore, it is important to note that sex hormone-binding globulin (SHBG) levels play a crucial role in the regulation of osteoporosis by influencing the availability of sex hormones. Hence, this study holds significant importance as it aims to unravel the roles of LTL and SHBG levels and determine which one acts as a predominant intermediary factor in influencing osteoporosis. Using Mendelian randomization (MR), we can gain valuable insights into the intricate relationships between aging, sex hormones, and bone health. METHODS Univariable and multivariable and MR analyses were employed in this study. First, we used genetic variants associated with both LTL, as determined from a study involving 472,174 European participants by Codd et al., and SHBG levels, as identified in a study conducted by Ruth et al. with 370,125 participants, as instrumental variables (IVs). Then we aimed to establish a causal relationship between LTL and SHBG levels and their potential impact on osteoporosis using univariable MR. Finally, we conducted multivariable MR to provide insights into the independent and combined effects of LTL, SHBG levels on osteoporosis risk. We used various MR methods, with the primary analysis employing the inverse-variance weighted (IVW) model. RESULTS Univariable MR analysis reveals a potential causal effect of longer LTL on reduced risk of osteoporosis [odds ratio (OR): 0.85; 95% confidence interval (CI): 0.73-0.99; p = 0.03]. Conversely, higher genetically determined SHBG levels affect the risk of osteoporosis positively. (OR: 1.38; 95% CI: 1.09-1.75; p < 0.01). We observed a negative causal effect for LTL on the occurrence of SHBG (OR: 0.96; 95% CI 0.94-0.98, p < 0.01). After adjustment of using multivariable MR, the causal effect of LTL on osteoporosis (OR: 0.92; 95% CI: 0.84-1.03; p = 0.14), and the effect of SHBG on osteoporosis (OR: 1.43; 95% CI: 1.16-1.75; p < 0.01) were observed. CONCLUSION Longer LTL may confer a protective effect against osteoporosis. Additionally, the levels of SHBG appear to play a crucial role in mediating the relationship between LTL and osteoporosis. By understanding the interplay between these factors, we can gain valuable insights into the mechanisms underlying bone health and aging and potentially identify new avenues for prevention and intervention strategies.
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Affiliation(s)
- Kaibo Sun
- Department of Orthopedics Surgery, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduChina
| | - Mengying Li
- Center of Reproductive MedicineThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yongtao Wu
- West China School of MedicineSichuan UniversityChengduChina
| | - Yuangang Wu
- Department of Orthopedics Surgery, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduChina
| | - Yi Zeng
- Department of Orthopedics Surgery, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduChina
| | - Shengliang Zhou
- Department of Orthopedics Surgery, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduChina
| | - Linbo Peng
- Department of Orthopedics Surgery, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduChina
| | - Bin Shen
- Department of Orthopedics Surgery, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduChina
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Wu B, Chen M, Meng L, Tian Q, Dong Z. Osteoclasts Link Dysregulated Peripheral Degradation Processes and Accelerated Progression in Alzheimer's Disease. J Alzheimers Dis 2024; 99:773-785. [PMID: 38701149 DOI: 10.3233/jad-240096] [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] [Indexed: 05/05/2024]
Abstract
Background The amyloid-β (Aβ) enhances the number and activity of blood monocyte-derived osteoclasts (OCs). Individuals with osteoporosis (OP) face an increased risk of developing dementia or Alzheimer's disease (AD). Despite this association, the contribution of bone-resorbing OCs to the progression of AD pathology remains unclear. Objective Our objective was to investigate the potential impacts of OCs on the development of AD pathology. Methods We conducted targeted analysis of publicly available whole blood transcriptomes from patients with AD to characterize the blood molecular signatures and pathways associated with hyperactive OCs. In addition, we used APP23 transgenic (APP23 TG) AD mouse model to assess the effects of OCs pharmacological blockade on AD pathology and behavior. Results Patients with AD exhibited increased osteoclastogenesis signature in their blood cells, which appears to be positively correlated with dysfunction of peripheral clearance of Aβ mediated by immune cells. Long-term anti-resorptive intervention with Alendronate inhibited OC activity in APP23 mice, leading to improvements in peripheral monocyte Aβ-degrading enzyme expression, Aβ-deposition, and memory decline. Conclusions Our findings suggest that OCs have a disease-promoting role in the development and progression of AD, possibly linked to their modulation of peripheral immunity. These findings guide future research to further elucidate the connection between OP and AD pathogenesis, highlighting the potential benefits of preventing OP in alleviating cognitive burden.
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Affiliation(s)
- Bin Wu
- Growth, Development, and Mental Health of Children and Adolescence Center, Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Mulan Chen
- Growth, Development, and Mental Health of Children and Adolescence Center, Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ling Meng
- Laboratory of Developmental Biology, Department of Cell Biology and Genetics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Qiuyun Tian
- Growth, Development, and Mental Health of Children and Adolescence Center, Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zhifang Dong
- Growth, Development, and Mental Health of Children and Adolescence Center, Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
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10
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Lin Y, Wang X, Wu R, Zhou J, Feng F. Association between segmental body composition and bone mineral density in US adults: results from the NHANES (2011-2018). BMC Endocr Disord 2023; 23:246. [PMID: 37940909 PMCID: PMC10634103 DOI: 10.1186/s12902-023-01506-z] [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: 02/07/2023] [Accepted: 11/06/2023] [Indexed: 11/10/2023] Open
Abstract
OBJECTIVE The association between segmental body composition and bone mineral density (BMD) remains uncertain. The primary aim of this cross-sectional investigation was to elucidate the connection between segmental body composition and BMD within the United States adult population. METHODS We selected a cohort of 10,096 individuals from the National Health and Nutrition Examination Survey (NHANES) database, with a mean age of 39 years and a mean BMI of 28.5 kg/m². The parameter of segmental body composition was achieved by quantifying body fat and lean mass percentages across various anatomical regions, including the torso, Android, Gynoid, arms and legs. We conducted a weighted multivariate linear regression analysis to investigate the association between segmental body composition and total BMD. Additionally, subgroup analysis was performed based on age and gender. RESULTS We found an inverse association between fat proportion in each anatomical region and total BMD, with the arm and leg regions demonstrating the most significant negative correlation. Conversely, a positive correlation was observed between lean mass and BMD across all anatomical regions. These associations remained consistent in subgroup analyses. CONCLUSION Our investigation revealed a negative association between adipose levels in various anatomical regions and BMD among Americans aged 20 to 59. Importantly, higher fat proportion in the extremities exerted the most deleterious impact on BMD. Furthermore, an increase in lean mass within each anatomical region was ascertained to confer a positive effect on bone health. Consequently, the evaluation of segmental body composition is well-positioned to predict bone health status.
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Affiliation(s)
- Yanze Lin
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xun Wang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Ruiji Wu
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, China
| | - Jinlei Zhou
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Fabo Feng
- Center for Plastic & Reconstructive Surgery, Department of Orthopedics, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
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11
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Khalil N, Pinti A, El Hage R. The Effects of a 1-Year Recreational Kung Fu Protocol on Bone Health Parameters in a Group of Healthy Inactive Young Men. J Clin Densitom 2023; 26:101418. [PMID: 37356377 DOI: 10.1016/j.jocd.2023.101418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/05/2023] [Indexed: 06/27/2023]
Abstract
The main aim of the current study was to explore the effects of a 1-year recreational Kung Fu protocol on bone health parameters (bone mineral content (BMC), bone mineral density (BMD), femoral neck geometry and composite indices of femoral neck strength) in a group of healthy inactive young men. 54 young inactive men voluntarily participated in this study, but only 51 of them completed it. The participants were assigned to 2 different groups: control group (n=31) and Kung Fu group (n=20). The Kung Fu group performed two sessions of recreational Kung Fu per week; the duration of each session was 45 minutes. The current study has demonstrated that whole body (WB) BMC, ultra-distal (UD) radius BMD, 1/3 radius BMD, total radius BMD, total forearm BMD, maximal strength, maximum oxygen consumption and jumping performance increased in the Kung Fu group but not in the control group. The percentages of variations in WB BMC, forearm BMD and physical performance parameters were significantly different between the two groups. In conclusion, this study suggests that recreational Kung Fu is an effective method to improve WB BMC, forearm BMD and physical performance parameters in young inactive men.
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Affiliation(s)
- Nour Khalil
- Department of Physical Education, Faculty of Arts and Sciences, University of Balamand, Kelhat El-Koura, Lebanon; Université Polytechnique Hauts-de-France, INSA Hauts-de-France, LARSH - Laboratoire de Recherche Sociétés & Humanités, F-59313 Valenciennes, France
| | - Antonio Pinti
- Université Polytechnique Hauts-de-France, INSA Hauts-de-France, LARSH - Laboratoire de Recherche Sociétés & Humanités, F-59313 Valenciennes, France
| | - Rawad El Hage
- Department of Physical Education, Faculty of Arts and Sciences, University of Balamand, Kelhat El-Koura, Lebanon.
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12
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Wei H, Zhao Y, Xiang L. Bone health in inflammatory bowel disease. Expert Rev Gastroenterol Hepatol 2023; 17:921-935. [PMID: 37589220 DOI: 10.1080/17474124.2023.2248874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 08/14/2023] [Indexed: 08/18/2023]
Abstract
INTRODUCTION Inflammatory bowel disease (IBD) is a chronic disease characterized by the presence of systemic inflammation, manifesting not only as gastrointestinal symptoms but also as extraintestinal bone complications, including osteopenia and osteoporosis. However, the association between IBD and osteoporosis is complex, and the presence of multifactorial participants in the development of osteoporosis is increasingly recognized. Unlike in adults, delayed puberty and growth hormone/insulin-like growth factor-1 axis abnormalities are essential risk factors for osteoporosis in pediatric patients with IBD. AREAS COVERED This article reviews the potential pathophysiological mechanisms contributing to osteoporosis in adult and pediatric patients with IBD and provides evidence for effective prevention and treatment, focusing on pediatric patients with IBD. A search was performed from PubMed and Web of Science inception to February 2023 to identify articles on IBD, osteoporosis, pediatric, and fracture risk. EXPERT OPINION A comprehensive treatment pattern based on individualized principles can be used to manage pediatric IBD-related osteoporosis.
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Affiliation(s)
- Hao Wei
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yihan Zhao
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Lisha Xiang
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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13
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Finianos B, Pinti A, ElHage R. The effects of a 1-year recreational football protocol on bone health parameters in a group of healthy inactive 50-year-old men. J Clin Densitom 2023; 26:101368. [PMID: 37002003 DOI: 10.1016/j.jocd.2023.03.007] [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: 02/18/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
The main aim of the current study was to explore the effects of a 1-year recreational football protocol on bone health parameters (bone mineral content (BMC), bone mineral density (BMD), femoral neck geometry and composite indices of femoral neck strength) in a group of healthy inactive 50-year-old men. 51 middle-aged men voluntarily participated in this study, but only 41 of them completed it. Thus, the study population included 11 former football (FF) players and 30 inactive men. Inactive men were assigned to 3 different groups: controls (n=10), recreational football 30 (RF30; n=10) and recreational football 60 (RF60; n=10). The RF30 group performed two sessions of recreational football per week; the duration of each session was 30 minutes. The RF60 group performed two sessions of recreational football per week; the duration of each session was 60 minutes. The current study has demonstrated that whole body (WB) BMC, femoral neck BMD, cross-sectional moment of inertia, compression strength index, bending strength index and impact strength index increased in both experimental groups (RF30 and RF60) but not in the control group. The percentages of variations in bone health parameters were not significantly different between RF30 and RF60. In conclusion, this study suggests that recreational football is an effective method to improve bone health parameters in middle-aged men. In the studied population, most of the bone health benefits occurred after a low volume training protocol (2 * 30 minutes of recreational football per week).
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Affiliation(s)
- Boutros Finianos
- Department of Physical Education, Faculty of Arts and Sciences, University of Balamand, Kelhat El-Koura, Lebanon
| | - Antonio Pinti
- Université Polytechnique Hauts-de-France, INSA Hauts-de-France, LARSH - Laboratoire de Recherche Sociétés & Humanités, F-59313 Valenciennes, France
| | - Rawad ElHage
- Department of Physical Education, Faculty of Arts and Sciences, University of Balamand, Kelhat El-Koura, Lebanon.
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14
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Kim SY, Park GI, Park SY, Lee EH, Choi H, Koh JT, Han S, Choi MH, Park EK, Kim IS, Kim JE. Gulp1 deficiency augments bone mass in male mice by affecting osteoclasts due to elevated 17β-estradiol levels. J Cell Physiol 2023; 238:1006-1019. [PMID: 36870066 DOI: 10.1002/jcp.30987] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 01/19/2023] [Accepted: 02/14/2023] [Indexed: 03/05/2023]
Abstract
The engulfment adaptor phosphotyrosine-binding domain containing 1 (GULP1) is an adaptor protein involved in the engulfment of apoptotic cells via phagocytosis. Gulp1 was first found to promote the phagocytosis of apoptotic cells by macrophages, and its role in various tissues, including neurons and ovaries, has been well studied. However, the expression and function of GULP1 in bone tissue are poorly understood. Consequently, to determine whether GULP1 plays a role in the regulation of bone remodeling in vitro and in vivo, we generated Gulp1 knockout (KO) mice. Gulp1 was expressed in bone tissue, mainly in osteoblasts, while its expression is very low in osteoclasts. Microcomputed tomography and histomorphometry analysis in 8-week-old male Gulp1 KO mice revealed a high bone mass in comparison with male wild-type (WT) mice. This was a result of decreased osteoclast differentiation and function in vivo and in vitro as confirmed by a reduced actin ring and microtubule formation in osteoclasts. Gas chromatography-mass spectrometry analysis further showed that both 17β-estradiol (E2) and 2-hydroxyestradiol levels, and the E2/testosterone metabolic ratio, reflecting aromatase activity, were also higher in the bone marrow of male Gulp1 KO mice than in male WT mice. Consistent with mass spectrometry analysis, aromatase enzymatic activity was significantly higher in the bone marrow of male Gulp1 KO mice. Altogether, our results suggest that GULP1 deficiency decreases the differentiation and function of osteoclasts themselves and increases sex steroid hormone-mediated inhibition of osteoclast differentiation and function, rather than affecting osteoblasts, resulting in a high bone mass in male mice. To the best of our knowledge, this is the first study to explore the direct and indirect roles of GULP1 in bone remodeling, providing new insights into its regulation.
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Affiliation(s)
- Soon-Young Kim
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,BK21 Four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
| | - Gun-Il Park
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Seung-Yoon Park
- Department of Biochemistry, School of Medicine, Dongguk University, Gyeongju, Republic of Korea
| | - Eun-Hye Lee
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Hyuck Choi
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jeong-Tae Koh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Soyun Han
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Man Ho Choi
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - In-San Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute Science and Technology, Seoul, Republic of Korea.,KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
| | - Jung-Eun Kim
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.,BK21 Four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
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15
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Huo J, Ding Y, Wei X, Chen Q, Zhao B. Antiosteoporosis and bone protective effect of nimbolide in steroid-induced osteoporosis rats. J Biochem Mol Toxicol 2022; 36:e23209. [PMID: 36086868 DOI: 10.1002/jbt.23209] [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: 03/03/2022] [Revised: 06/29/2022] [Accepted: 08/05/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Osteoporosis is a metabolic, hereditary, progressive disease characterized by unusual bone production across the skeleton and a loss the bone tissue microstructure and mass. In this experimental study, we scrutinized the antiosteoporosis effect of nimbolide against glucocorticoid (GCs) induced osteoporosis in rats. METHODS Swiss albino female rats were employed for the current experiment study and the rats were divided into different groups. Dexamethasone (0.1 mg/kg/day) was used for induction the osteoporosis and the rats were received the different doses of nimbolide (2.5, 5, and 7.5 mg/kg) for the estimation of bone protective effects. The body weight was estimated (initially and finally). Hormones, bone metabolic markers, bone turnover markers, bone structure, biomechanical, histomorphometric dynamic, biochemical markers, and histomorphometric static parameters were analyzed. RESULTS The body weight of GCs group rats considerably suppressed and nimbolide treatment remarkably improved the body weight. Nimbolide treated group exhibited the enhancement of bone metabolic, bone structure markers, and histomophometric dynamic markers, which was suppressed during the GCs-induced osteoporosis. GCs-induced osteoporosis rats exhibited the enhancement of procollagen type 1 C-terminal propeptide (P1CP), carboxy-terminal crosslinked telopeptide of type 1 collagen (CTX-1), Dickkopf-1 (DKK1), tartrate-resistant acid phosphatase 5b (TRACP 5b), and suppressed the level of bone alkaline phosphatase (BAP), which was reversed by the nimbolide treatment. Nimbolide treatment remarkably improved the level of estradiol and suppressed the level of parathyroid hormone (PTH), which was altered during the osteoporosis. Nimbolide treatment significantly (p < 0.001) improved the level of calcium, magnesium, and phosphorus in the serum and bone tissue. Nimbolide treatment also altered the level of bone metabolic markers and suppressed the level of inflammatory cytokines. CONCLUSION Based on the findings, we may conclude that nimbolide has antiosteoporosis properties via balancing the bone mass and improving vitamin and hormone levels.
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Affiliation(s)
- Jiang Huo
- Department of Orthopedics, The Second Hospital of Shanxi Medical University of Taiyuan, Taiyuan, China
| | - Yu Ding
- Department of Neurology, Shanxi Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Taiyuan, China
| | - Xinyuan Wei
- Department of Orthopedics, The Second Hospital of Shanxi Medical University of Taiyuan, Taiyuan, China
| | - Qi Chen
- Department of Orthopedics, The Second Hospital of Shanxi Medical University of Taiyuan, Taiyuan, China
| | - Bin Zhao
- Department of Orthopedics, The Second Hospital of Shanxi Medical University of Taiyuan, Taiyuan, China
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16
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Li L, Wang Y, Wang Z, Xue D, Dai C, Gao X, Ma J, Hang K, Pan Z. Knockdown of FOXA1 enhances the osteogenic differentiation of human bone marrow mesenchymal stem cells partly via activation of the ERK1/2 signalling pathway. Stem Cell Res Ther 2022; 13:456. [PMID: 36064451 PMCID: PMC9446550 DOI: 10.1186/s13287-022-03133-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
Abstract
Background The available therapeutic options for large bone defects remain extremely limited, requiring new strategies to accelerate bone healing. Genetically modified bone mesenchymal stem cells (BMSCs) with enhanced osteogenic capacity are recognised as one of the most promising treatments for bone defects. Methods We performed differential expression analysis of miRNAs between human BMSCs (hBMSCs) and human dental pulp stem cells (hDPSCs) to identify osteogenic differentiation-related microRNAs (miRNAs). Furthermore, we identified shared osteogenic differentiation-related miRNAs and constructed an miRNA-transcription network. The Forkhead box protein A1 (FOXA1) knockdown strategy with a lentiviral vector was used to explore the role of FOXA1 in the osteogenic differentiation of MSCs. Cell Counting Kit-8 was used to determine the effect of the knockdown of FOXA1 on hBMSC proliferation; real-time quantitative reverse transcription PCR (qRT-PCR) and western blotting were used to investigate target genes and proteins; and alkaline phosphatase (ALP) staining and Alizarin Red staining (ARS) were used to assess ALP activity and mineral deposition, respectively. Finally, a mouse model of femoral defects was established in vivo, and histological evaluation and radiographic analysis were performed to verify the therapeutic effects of FOXA1 knockdown on bone healing. Results We identified 22 shared and differentially expressed miRNAs between hDPSC and hBMSC, 19 of which were downregulated in osteogenically induced samples. The miRNA-transcription factor interaction network showed that FOXA1 is the most significant and novel osteogenic differentiation biomarker among more than 300 transcription factors that is directly targeted by 12 miRNAs. FOXA1 knockdown significantly promoted hBMSC osteo-specific genes and increased mineral deposits in vitro. In addition, p-ERK1/2 levels were upregulated by FOXA1 silencing. Moreover, the increased osteogenic differentiation of FOXA1 knockdown hBMSCs was partially rescued by the addition of ERK1/2 signalling inhibitors. In a mouse model of femoral defects, a sheet of FOXA1-silencing BMSCs improved bone healing, as detected by microcomputed tomography and histological evaluation. Conclusion These findings collectively demonstrate that FOXA1 silencing promotes the osteogenic differentiation of BMSCs via the ERK1/2 signalling pathway, and silencing FOXA1 in vivo effectively promotes bone healing, suggesting that FOXA1 may be a novel target for bone healing.
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Affiliation(s)
- Lijun Li
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China.,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China.,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China
| | - Yibo Wang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China.,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China.,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China
| | - Zhongxiang Wang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China.,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China.,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China
| | - Deting Xue
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China.,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China.,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China
| | - Chengxin Dai
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China.,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China.,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China
| | - Xiang Gao
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China.,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China.,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China
| | - Jianfei Ma
- Key Laboratory of Image Information Processing and Intelligent Control, School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Kai Hang
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China. .,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China. .,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China. .,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China.
| | - Zhijun Pan
- Department of Orthopedics Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, People's Republic of China. .,Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, People's Republic of China. .,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, People's Republic of China. .,Clinical Research Center of Motor System Disease of Zhejiang Province, Zhejiang Province, Hangzhou City, People's Republic of China.
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17
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Noguera JC, Velando A. Maternal testosterone affects offspring telomerase activity in a long-lived seabird. Ecol Evol 2022; 12:e9281. [PMID: 36110870 PMCID: PMC9465397 DOI: 10.1002/ece3.9281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/29/2022] [Accepted: 08/19/2022] [Indexed: 11/10/2022] Open
Abstract
Androgens are a group of steroid hormones that have long been proposed as a mechanism underpinning intergenerational plasticity. In birds, maternally allocated egg testosterone, one of the main androgens in vertebrates, affects a wide variety of offspring phenotypic traits but the mechanisms underlying this form of intergenerational plasticity are not yet well understood. Recent in vitro and animal model studies have shown that telomerase expression and activity are important targets of androgen signaling. The telomerase enzyme is known for its repair function on telomeres, the DNA-protein complexes at the ends of chromosomes that are involved in genomic integrity and cell aging. However, the role of maternal testosterone in influencing offspring telomerase levels in natural populations and its consequences on telomere length and potentially on offspring development is still unknown. Here, by experimentally modifying the level of egg testosterone in a natural population of yellow-legged gull (Larus michahellis), we show that chicks hatched from testosterone-treated eggs had higher average levels of telomerase and faster growth than controls during the first week of life. While testosterone-treated chicks also tended to have longer telomeres than controls at hatching this difference disappeared by day 6 of age. Overall, our results suggest that maternal testosterone may have a potential adaptive value by promoting offspring growth and presumably telomerase levels, as this enzyme plays other important physiological functions (e.g., stress resistance, cell signaling, or tissue genesis) besides telomere lengthening. Nonetheless, our knowledge of the potential adaptive function of telomerase in natural populations is scarce and so the potential pathways linking maternal hormones, offspring telomerase, and fitness should be further investigated.
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Affiliation(s)
- Jose C Noguera
- Grupo de Ecología Animal (GEA), Centro de Investigación Marina (CIM) Universidad de Vigo Vigo Spain
| | - Alberto Velando
- Grupo de Ecología Animal (GEA), Centro de Investigación Marina (CIM) Universidad de Vigo Vigo Spain
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18
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Sretenovic J, Zivkovic V, Srejovic I, Pantovic S, Jovic JJ, Nikolic M, Turnic TN, Savic M, Jevdjevic M, Milosavljevic Z, Bolevich S, Jakovljevic V. Nandrolone Decanoate and Swimming Affects Cardiodynamic and Morphometric Parameters in the Isolated Rat Heart. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081242. [PMID: 36013421 PMCID: PMC9410289 DOI: 10.3390/life12081242] [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: 06/29/2022] [Revised: 08/05/2022] [Accepted: 08/10/2022] [Indexed: 11/17/2022]
Abstract
(1) Background: The aim of this study was to show the effects of swimming and nandrolone administration on cardiodynamic and morphometric parameters of the isolated rat heart. (2) The study included 72 Wistar rats, divided into three groups, scheduled to be sacrificed after the second, third, and fourth week. Each group was divided into four subgroups: control (T-N-), nandrolone (T-N+), swimming training (T+N-), and swimming training plus nandrolone (T+N+) group. The rats from T+N- and T+N+ swam 1 h/day, 5 days/week while ones from T-N+ and T+N+ received weekly nandrolone decanoate (20 mg/kg). The isolated hearts were perfused according to the Langendorff technique and measured parameters: dp/dt max/min, SLVP, DLVP, heart rate, and coronary flow. Hearts were fixed and stained with H/E and Masson trichrome dyes. (3) dp/dt max and dp/dt min were increased in the T-N+ group at higher perfusion pressure compared to the T-N- group. SLVP and DLVP were increased in all groups after the 4th week. Collagen content was increased in T-N+ by 403% and in T+N+ by 357% groups, while it was decreased in T+N- compared to the control after 4th week. (4) Conclusions: Nandrolone alone or combined with swimming had a deleterious effect on myocardial function and perfusion.
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Affiliation(s)
- Jasmina Sretenovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
- Correspondence:
| | - Vladimir Zivkovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
- Department of Pharmacology 1st Moscow State Medical University IM Sechenov, Trubetskaya Str. 2, 119992 Moscow, Russia
| | - Ivan Srejovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
- Department of Pharmacology 1st Moscow State Medical University IM Sechenov, Trubetskaya Str. 2, 119992 Moscow, Russia
| | - Suzana Pantovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Jovana Joksimovic Jovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Maja Nikolic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Tamara Nikolic Turnic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
- N.A. Semashko Public Health and Healthcare Department, F.F. Erismann Institute of Public Health, I.M. Sechenov First Moscow State Medical University, 119435 Moscow, Russia
| | - Maja Savic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Maja Jevdjevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
| | - Zoran Milosavljevic
- Department of Histology and Embryology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
- Faculty of Farmacy, Pavlovica Put bb., Bijeljina University, 76300 Bijeljina, Bosnia and Herzegovina
| | - Sergej Bolevich
- Department of Human Pathology, 1st Moscow State Medical University IM Sechenov, Trubetskaya Str. 2, 119992 Moscow, Russia
| | - Vladimir Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovica 69, 34000 Kragujevac, Serbia
- Department of Human Pathology, 1st Moscow State Medical University IM Sechenov, Trubetskaya Str. 2, 119992 Moscow, Russia
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19
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Kioka K, Aikawa Y, Wakasugi Y, Narukawa T, Fukuyasu T, Ohtsuki M, Yamashita T, Sasai N, Omi N. Soy protein intake increased bone mineral density under non-energy deficiency conditions but decreased it under energy deficiency conditions in young female rats. Nutr Res 2022; 106:1-11. [DOI: 10.1016/j.nutres.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022]
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20
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Hu J, Zhao M, Lin C, Sun Z, Chen GC, Mei Z, Zheng Y. Associations of visceral adipose tissue with bone mineral density and fracture: observational and Mendelian randomization studies. Nutr Metab (Lond) 2022; 19:45. [PMID: 35821143 PMCID: PMC9277855 DOI: 10.1186/s12986-022-00680-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The associations between visceral adipose tissue (VAT) and bone mineral density (BMD) or fracture have been controversial and the causality of the associations remains to be assessed. This study aimed to explore the associations of VAT^ (predicted value of VAT mass) with BMD and fracture risk in men and women, and to examine their potential causation by two-sample Mendelian randomization (MR) analyses. METHODS UK Biobank is a large, population-based prospective cohort study that recruited more than 500,000 participants aged 40-69 in the United Kingdom from 2006 to 2010. In this study, we used a validated and reliable prediction model to estimate the VAT amount of the participants. On this basis, linear and nonlinear multivariable statistical models were used to explore the association of VAT^ with BMD and fracture risk in different groups of sex and BMI. In observational analyses, the multivariable linear regression model and Cox proportional-hazards model were used to assess VAT^ association with BMD and fracture risk, respectively. Inverse variance weighting was used as the main result of MR analysis. RESULTS In 190,836 men, an inverted U-shaped association was observed between VAT^ and heel BMD (P for nonlinearity < 0.001), with a turning point of VAT^ = 1.25 kg. Per kg increase in VAT^ was associated with a 0.13 standard deviation (SD) increase in heel BMD (P = 1.5 × 10-16) among men with lower amounts of VAT^, and associated with a 0.05 SD decrease in heel BMD (P = 1.3 × 10-15) among men with higher amounts of VAT^. In 193,592 women, per kg increase in VAT^ was monotonically associated with a 0.16 SD increase in heel BMD (P = 1.2 × 10-136, P for VAT^-sex interaction = 8.4 × 10-51). During a median follow-up of 8.2 years, VAT^ was associated with lower risks of hip fractures in the overall men and women (P for VAT^-sex interaction = 1.9 × 10-4 for total fractures; 1.5 × 10-4 for other fractures). There were significant interactions of VAT^ and BMI on heel BMD and fracture risks in men only (P for VAT^-BMI interaction = 5.9 × 10-31 for heel BMD; 2.7 × 10-4 for total fractures; 5.7 × 10-3 for hip fractures; 6.8 × 10-3 for other fractures). In two-sample MR analyses, evidence of causality was not observed between VAT^ and DXA-derived BMD or fractures. CONCLUSIONS These novel findings demonstrated gender-dependent associations of VAT^ with BMD and fracture risk, with the association in men being modified by adiposity. Evidence of causality was not observed, suggesting that the observational association of VAT^ with BMD and fracture risk could be the result of confounding.
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Affiliation(s)
- Jianying Hu
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.,Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China
| | - Manying Zhao
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.,Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China
| | - Chenhao Lin
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.,Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China
| | - Zhonghan Sun
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.,Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China
| | - Guo-Chong Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, China
| | - Zhendong Mei
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China. .,Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China.
| | - Yan Zheng
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438, China. .,Ministry of Education Key Laboratory of Contemporary Anthropology, Human Phenome Institute, Fudan University, Shanghai, China. .,Ministry of Education Key Laboratory of Public Health Safety, School of Public Health, Fudan University, Shanghai, China. .,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China.
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21
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O'Leary TJ, Izard RM, Tang JCY, Fraser WD, Greeves JP. Sex differences in tibial adaptations to arduous training: An observational cohort study. Bone 2022; 160:116426. [PMID: 35470123 DOI: 10.1016/j.bone.2022.116426] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 04/12/2022] [Accepted: 04/19/2022] [Indexed: 12/31/2022]
Abstract
Military training increases tibial density and size, but it is unknown if men and women adapt similarly to the same arduous training. Seventy-seven men and 57 women not using hormonal contraceptives completed this study. Tibial volumetric bone mineral density (vBMD) and geometry were measured by peripheral quantitative computed tomography (4%, 14%, 38%, and 66% sites) at the start (week 1) and end (week 14) of British Army basic training. Training increased trabecular vBMD (4% site in men; 4% and 14% sites in women), cortical vBMD (38% site), total area (14% and 38% sites), trabecular area (14% site), cortical area and thickness (14%, 38%, and 66% sites), periosteal perimeter (14%, 38%, and 66% sites), and all indices of estimated strength (14%, 38%, and 66% sites); and, decreased endosteal perimeter (66% site) in men and women (all p ≤ 0.045). The increase in trabecular vBMD (4% and 14% sites) was greater in women and the increases in cortical area and strength (38% site) were greater in men (sex × time interactions, all p ≤ 0.047). P1NP increased and βCTX and sclerostin decreased during training in men and women, consistent with adaptive bone formation. PTH decreased in men but increased in women. Arduous weight-bearing activity increased the density and size of the tibia after 14 weeks. Women experienced similar tibial adaptations as men, however, a greater increase in trabecular vBMD in women compared with men could be due to higher loading at this skeletal site in women, whereas the small increase in cortical area could be due to inhibitory effects of oestradiol.
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Affiliation(s)
- Thomas J O'Leary
- Army Health and Performance Research, Army HQ, Andover, UK; Division of Surgery and Interventional Science, UCL, London, UK
| | | | | | - William D Fraser
- Norwich Medical School, University of East Anglia, Norwich, UK; Norfolk and Norwich University Hospital, Norwich, UK
| | - Julie P Greeves
- Army Health and Performance Research, Army HQ, Andover, UK; Division of Surgery and Interventional Science, UCL, London, UK; Norwich Medical School, University of East Anglia, Norwich, UK.
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22
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Fang H, Deng Z, Liu J, Chen S, Deng Z, Li W. The Mechanism of Bone Remodeling After Bone Aging. Clin Interv Aging 2022; 17:405-415. [PMID: 35411139 PMCID: PMC8994557 DOI: 10.2147/cia.s349604] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/29/2022] [Indexed: 01/02/2023] Open
Abstract
Senescence mainly manifests as a series of degenerative changes in the morphological structure and function of the body. Osteoporosis is a systemic bone metabolic disease characterized by destruction of bone microstructure, low bone mineral content, decreased bone strength, and increased brittleness and fracture susceptibility. Osteoblasts, osteoclasts and osteocytes are the main cellular components of bones. However, in the process of aging, due to various self or environmental factors, the body’s function and metabolism are disordered, and osteoporosis will appear in the bones. Here, we summarize the mechanism of aging, and focus on the impact of aging on bone remodeling homeostasis, including the mechanism of ion channels on bone remodeling. Finally, we summarized the current clinical medications, targets and defects for the treatment of osteoporosis.
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Affiliation(s)
- Huankun Fang
- Hand and Foot Surgery Department, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, 518035, People’s Republic of China
- Medical College, Shantou University, Shantou, Guangdong, 515041, People’s Republic of China
| | - Zhiqin Deng
- Hand and Foot Surgery Department, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, 518035, People’s Republic of China
| | - Jianquan Liu
- Hand and Foot Surgery Department, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, 518035, People’s Republic of China
| | - Siyu Chen
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, 518035, People’s Republic of China
| | - Zhenhan Deng
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, 518035, People’s Republic of China
- Correspondence: Zhenhan Deng, Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, 3002 Sungang West Road, Shenzhen City, 518025, People’s Republic of China, Tel +86 13928440786, Fax +86 755-83366388, Email
| | - Wencui Li
- Hand and Foot Surgery Department, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, Guangdong, 518035, People’s Republic of China
- Wencui Li, Department of Hand and Foot Surgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, 3002 Sungang West Road, Shenzhen City, 518025, People’s Republic of China, Tel +86 13923750767, Email
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23
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Targeted activation of androgen receptor signaling in the periosteum improves bone fracture repair. Cell Death Dis 2022; 13:123. [PMID: 35136023 PMCID: PMC8826926 DOI: 10.1038/s41419-022-04595-1] [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: 11/02/2021] [Revised: 12/30/2021] [Accepted: 01/27/2022] [Indexed: 12/03/2022]
Abstract
Low testosterone level is an independent predictor of osteoporotic fracture in elderly men as well as increased fracture risk in men undergoing androgen deprivation. Androgens and androgen receptor (AR) actions are essential for bone development and homeostasis but their linkage to fracture repair remains unclear. Here we found that AR is highly expressed in the periosteum cells and is co-localized with a mesenchymal progenitor cell marker, paired-related homeobox protein 1 (Prrx1), during bone fracture repair. Mice lacking the AR gene in the periosteum expressing Prrx1-cre (AR-/Y;Prrx1::Cre) but not in the chondrocytes (AR-/Y;Col-2::Cre) exhibits reduced callus size and new bone volume. Gene expression data analysis revealed that the expression of several collagens, integrins and cell adhesion molecules were downregulated in periosteum-derived progenitor cells (PDCs) from AR-/Y;Prrx1::Cre mice. Mechanistically, androgens-AR signaling activates the AR/ARA55/FAK complex and induces the collagen-integrin α2β1 gene expression that is required for promoting the AR-mediated PDCs migration. Using mouse cortical-defect and femoral graft transplantation models, we proved that elimination of AR in periosteum of host mice impairs fracture healing, regardless of AR existence of transplanted donor graft. While testosterone implanted scaffolds failed to complete callus bridging across the fracture gap in AR-/Y;Prrx1::Cre mice, cell-based transplantation using DPCs re-expressing AR could lead to rescue bone repair. In conclusion, targeting androgen/AR axis in the periosteum may provide a novel therapy approach to improve fracture healing.
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Ballato E, Deepika F, Prado M, Russo V, Fuenmayor V, Bathina S, Villareal DT, Qualls C, Armamento-Villareal R. Circulating osteogenic progenitors and osteoclast precursors are associated with long-term glycemic control, sex steroids, and visceral adipose tissue in men with type 2 diabetes mellitus. Front Endocrinol (Lausanne) 2022; 13:936159. [PMID: 36171900 PMCID: PMC9511027 DOI: 10.3389/fendo.2022.936159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/10/2022] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Type 2 diabetes mellitus (T2DM) is well-known to be associated with normal bone density but, concurrently, low bone turnover and increased risk for fracture. One of the proposed mechanisms is possible derangement in bone precursor cells, which could be represented by deficiencies in circulating osteogenic progenitor (COP) cells and osteoclast precursors (OCP). The objective of our study is to understand whether extent of glycemic control has an impact on these cells, and to identify other factors that may as well. METHODS This was a secondary analysis of baseline data from 51 male participants, aged 37-65 in an ongoing clinical trial at Michael E. DeBakey VA Medical Center, Houston, Texas, USA. At study entry serum Hemoglobin A1c was measured by high-performance liquid chromatography osteocalcin (OCN) and C-terminal telopeptide of type 1 collagen (CTx) were measured by ELISA, and testosterone and estradiol by liquid-chromatography/mass-spectrometry. Areal bone mineral density (BMD), trabecular bone score and body composition were measured by dual energy x-ray absorptiometry, while COP and OCP were measured by flow cytometry. RESULTS When adjusted for serum testosterone, parathyroid hormone, and 25-hydroxyvitamin D, those with poor long-term glycemic control had significantly higher percentage of COP (p = 0.04). COP correlated positively with visceral adipose tissue (VAT) volume (r = 0.37, p = 0.01) and negatively with free testosterone (r = -0.28, p = 0.05) and OCN (r = -0.28, p = 0.07), although only borderline for the latter. OCP correlated positively with age, FSH, lumbar spine BMD, and COP levels, and negatively with glucose, triglycerides, and free estradiol. Multivariable regression analyses revealed that, in addition to being predictors for each other, another independent predictor for COP was VAT volume while age, glucose, and vitamin D for OCP. CONCLUSION Our results suggest that high COP could be a marker of poor metabolic control. However, given the complex nature and the multitude of factors influencing osteoblastogenesis/adipogenesis, it is possible that the increase in COP is a physiologic response of the bone marrow to increased osteoblast apoptosis from poor glycemic control. Alternatively, it is also likely that a metabolically unhealthy profile may retard the development of osteogenic precursors to fully mature osteoblastic cells.
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Affiliation(s)
- Elliot Ballato
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Fnu Deepika
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Mia Prado
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Vittoria Russo
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Virginia Fuenmayor
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Siresha Bathina
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Dennis T. Villareal
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
| | - Clifford Qualls
- Biomedical Research Institute of New Mexico, Albuquerque, NM, United States
- Research Service Line, New Mexico Veterans Affairs Health Care System, Albuquerque, NM, United States
| | - Reina Armamento-Villareal
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
- Center for Translational Research on Inflammatory Disease, Michael E DeBakey Veterans Affairs (VA) Medical Center, Houston, TX, United States
- *Correspondence: Reina Armamento-Villareal,
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25
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Opposing patterns in self-reported and measured physical activity levels in middle-aged adults. Eur J Ageing 2021; 19:567-573. [PMID: 36052191 PMCID: PMC9424380 DOI: 10.1007/s10433-021-00657-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2021] [Indexed: 10/24/2022] Open
Abstract
AbstractPhysical activity brings significant health benefits to middle-aged adults, although the research to date has been focused on late adulthood. This study aims to examine how ageing affects the self-reported and accelerometer-derived measures of physical activity levels in middle-aged adults. We employed the data recorded in the UK Biobank and analysed the physical activity levels of 2,998 participants (1381 men and 1617 women), based on self-completion questionnaire and accelerometry measurement of physical activity. We also assessed the musculoskeletal health of the participants using the dual-energy X-ray absorptiometry (DXA) measurements provided by the UK Biobank. Participants were categorised into three groups according to their age: group I younger middle-aged (40 to 49 years), group II older middle-aged (50 to 59 years), and group III oldest middle-aged (60 to 69 years). Self-reported physical activity level increased with age and was the highest in group III, followed by group II and I (P < 0.05). On the contrary, physical activity measured by accelerometry decreased significantly with age from group I to III (P < 0.05), and the same pertained to the measurements of musculoskeletal health (P < 0.05). It was also shown that middle-aged adults mostly engaged in low and moderate intensity activities. The opposing trends of the self-reported and measured physical activity levels may suggest that middle-aged adults over-report their activity level as they age. They should be aware of the difference between their perceived and actual physical activity levels, and objective measures would be useful to prevent the decline in musculoskeletal health.
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Hu N, Zhang J, Wang J, Wang P, Wang J, Qiang Y, Li Z, Wu T, Wang X, Wang Y, Li J, Liu X, Zhang J, Feng X, Ju B, Hao Z, Pu D, Lu X, Wang Q, He L. Biomarkers of joint metabolism and bone mineral density are associated with early knee osteoarthritis in premenopausal females. Clin Rheumatol 2021; 41:819-829. [PMID: 34642881 DOI: 10.1007/s10067-021-05885-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 07/23/2021] [Accepted: 08/10/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Biomarkers of bone and cartilage metabolism were proposed as early diagnosis indicators for knee osteoarthritis (OA), however, which were influenced by disease stage, age, and menopause state. Accurate diagnosis indicators are eagerly awaited. The current study aims to investigate associations of joint metabolism biomarkers and bone mineral density (BMD) with early knee OA in males and premenopausal females before age 50 years. METHOD A total of 189 patients aged before 50 years with early knee OA and 152 healthy participants were enrolled. Levels of bone biomarkers (PINP, OC, and CTX-I) and cartilage biomarkers (PIIANP, COMP, CTX-II, and MMP-3) were assessed. BMD was measured at the lumbar, femoral neck, and hip. Multivariate regression analyses were performed to evaluate the relationship between biomarkers, BMD, and early knee OA. RESULTS Serum COMP, urine CTX-II and BMD at femoral neck and hip were increased in premenopausal patients as compared to control; with serum PINP and OC reduced. Meanwhile, serum COMP, urine CTX-II, and BMD at femoral neck and hip showed positive associations with premenopausal early knee OA, while serum PINP had negative association. However, in male patients, only serum COMP was higher than control, and no association of biomarkers or BMD was found with early knee OA. CONCLUSIONS The joint metabolism biomarkers and BMD showed multiple associations with early knee OA in premenopausal females, but not in males aged before 50 years. It was suggested that sex differences should be taken into account when evaluating cartilage and bone metabolism in early knee OA. Key Points • The joint metabolism biomarkers and BMD are associated with early knee OA in premenopausal females, but not in males aged before 50 years. • Sex differences should be taken into account when evaluating cartilage and bone metabolism in early knee OA.
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Affiliation(s)
- Nan Hu
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Jing Zhang
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Jing Wang
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Pei Wang
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Jing Wang
- Department of Radiography, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yongqian Qiang
- Department of Radiography, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zicheng Li
- Department of Radiography, Shenmu Hospital, Shenmu, China
| | - Tianming Wu
- Clinical Laboratory, Shenmu Hospital, Shenmu, China
| | - Xing Wang
- Physical Examination Center, Shenmu Hospital, Shenmu, China
| | - Yahong Wang
- Physical Examination Center, Shenmu Hospital, Shenmu, China
| | - Jiao Li
- Department of Radiography, Shenmu Hospital, Shenmu, China
| | - Xiaoping Liu
- Department of Orthopaedics, Shenmu Hospital, Middle Section of Guangming Road, Shenmu, 719300, Shaanxi, China
| | - Jirong Zhang
- Department of Radiography, Shenmu Hospital, Shenmu, China
| | - Xiuyuan Feng
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Bomiao Ju
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Zhiming Hao
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Dan Pu
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Xiaohong Lu
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China
| | - Qiang Wang
- Department of Orthopaedics, Shenmu Hospital, Middle Section of Guangming Road, Shenmu, 719300, Shaanxi, China.
| | - Lan He
- Department of Rheumatology, the First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yan Ta Road, Xi'an, 710061, Shaanxi, China.
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Grosso AR. Tooth hop variability in human and nonhuman bone: Effect on the estimation of saw blade TPI. J Forensic Sci 2021; 67:102-111. [PMID: 34585386 DOI: 10.1111/1556-4029.14897] [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: 07/02/2021] [Revised: 08/13/2021] [Accepted: 09/10/2021] [Indexed: 11/28/2022]
Abstract
Forensic research has demonstrated that tooth hop (TH) is a valuable measurement from saw-cut bones as it can be used to estimate teeth-per-inch (TPI) of a saw used in postmortem dismemberment cases. However, error rates for TPI estimation are still under development and knowledge of how bone tissue affects TH measurements remains unclear. The purpose of this research was to investigate the effects of tissue variability through the use of different taxa on the accuracy and precision of TH measurements in the bone to estimate TPI of the blade. A total of 1766 TH measurements were analyzed from human, pig, and deer long bones cut by two 7 TPI saw blades of different tooth type. Fifty distance-between-teeth measurements before and after sawing were collected directly from each blade for comparison to bone-measured TH to assess potential effects of tooth wear on TH variability. ANOVA and F tests were used to compare mean TH and variance, respectively, by saw-species (i.e., crosscut-deer, rip-deer) and species groups (i.e., all deer, all pig), with significance determined at the p < 0.05 level. TH measurements were converted to usable TPI ranges, which would typically be presented in a forensic report. It is concluded that significant differences in TH (mm) do not necessarily reflect significant differences in associated TPI ranges of suspect blades. Forensic reports should report mean TPI ± 1.5-2.5 TPI while providing a sample size indicating number of TH measured rather than just number of cuts or cut surfaces examined.
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Affiliation(s)
- Alicia R Grosso
- Department of Physical Therapy, Clarkson University, Potsdam, New York, USA
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28
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Rosenberg AGW, Passone CGB, Pellikaan K, Damiani D, van der Lely AJ, Polak M, Bernardo WM, de Graaff LCG. Growth Hormone Treatment for Adults With Prader-Willi Syndrome: A Meta-Analysis. J Clin Endocrinol Metab 2021; 106:3068-3091. [PMID: 34105729 PMCID: PMC8475230 DOI: 10.1210/clinem/dgab406] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Features of Prader-Willi syndrome (PWS) overlap with features of growth hormone (GH) deficiency, like small hands and feet, short stature, increased body fat, and low muscle mass and strength. In children with PWS, GH treatment (GHt) improves physical health and cognition. GHt has become the standard of care in PWS children, but in adults this is not yet the case. OBJECTIVE This work aims to provide an overview of the current knowledge on GHt in PWS adults. METHODS Medline, Embase, and the Cochrane Central Register of Controlled Trials databases were searched. Study selection included randomized clinical trials (RCTs) and nonrandomized (un)controlled trials (NRCTs) that reported data for adults with PWS, who received GHt for at least 6 months. Data on body composition, body mass index (BMI), cardiovascular end points, bone, cognitive function, quality of life, and safety were extracted. RESULTS Nine RCTs and 20 NRCTs were included. Body composition improved during 12 months of GHt with an increase in mean (95% CI) lean body mass of 1.95 kg (0.04 to 3.87 kg) and a reduction of mean (95% CI) fat mass of -2.23% (-4.10% to -0.36%). BMI, low-density lipoprotein cholesterol levels, fasting glucose levels, and bone mineral density did not change during GHt. There were no major safety issues. CONCLUSION GHt appears to be safe and improves body composition in adults with PWS. Because poor body composition is closely linked to the observed high incidence of cardiovascular morbidity in adults with PWS, improving body composition might reduce cardiovascular complications in this vulnerable patient group.
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Affiliation(s)
- Anna G W Rosenberg
- Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Centre Rotterdam, 3015 GD Rotterdam, the Netherlands
- Dutch Centre of Reference for Prader-Willi syndrome, the Netherlands
| | - Caroline G B Passone
- Pediatric Endocrinology Unit, Universidade de São Paulo, São Paulo, Brazil
- Pediatric Endocrinology, Gynecology and Diabetology, Centre de Référence des Pathologies Gynécologiques Rares et des Maladies Endocriniennes Rares de la Croissance et du Développement, Hôpital Universitaire Necker Enfants Malades, Université de Paris, 75015 Paris, France
| | - Karlijn Pellikaan
- Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Centre Rotterdam, 3015 GD Rotterdam, the Netherlands
- Dutch Centre of Reference for Prader-Willi syndrome, the Netherlands
| | - Durval Damiani
- Pediatric Endocrinology Unit, Universidade de São Paulo, São Paulo, Brazil
| | - Aart J van der Lely
- Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Centre Rotterdam, 3015 GD Rotterdam, the Netherlands
| | - Michel Polak
- Pediatric Endocrinology, Gynecology and Diabetology, Centre de Référence des Pathologies Gynécologiques Rares et des Maladies Endocriniennes Rares de la Croissance et du Développement, Hôpital Universitaire Necker Enfants Malades, Université de Paris, 75015 Paris, France
| | | | - Laura C G de Graaff
- Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Centre Rotterdam, 3015 GD Rotterdam, the Netherlands
- Dutch Centre of Reference for Prader-Willi syndrome, the Netherlands
- Academic Centre for Growth, Erasmus MC, University Medical Centre Rotterdam, 3015 GD Rotterdam, the Netherlands
- Correspondence: Laura C. G. de Graaff, MD, PhD, Department of Internal Medicine-Endocrinology, Erasmus University Medical Centre, Dr. Molewaterplein 40, 3015 GD Rotterdam, the Netherlands.
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Steell L, Gray SR, Russell RK, MacDonald J, Seenan JP, Wong SC, Gaya DR. Pathogenesis of Musculoskeletal Deficits in Children and Adults with Inflammatory Bowel Disease. Nutrients 2021; 13:nu13082899. [PMID: 34445056 PMCID: PMC8398806 DOI: 10.3390/nu13082899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022] Open
Abstract
Musculoskeletal deficits are among the most commonly reported extra-intestinal manifestations and complications of inflammatory bowel disease (IBD), especially in those with Crohn’s disease. The adverse effects of IBD on bone and muscle are multifactorial, including the direct effects of underlying inflammatory disease processes, nutritional deficits, and therapeutic effects. These factors also indirectly impact bone and muscle by interfering with regulatory pathways. Resultantly, individuals with IBD are at increased risk of osteoporosis and sarcopenia and associated musculoskeletal morbidity. In paediatric IBD, these factors may contribute to suboptimal bone and muscle accrual. This review evaluates the main pathogenic factors associated with musculoskeletal deficits in children and adults with IBD and summarises the current literature and understanding of the musculoskeletal phenotype in these patients.
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Affiliation(s)
- Lewis Steell
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow G12 8QQ, UK; (L.S.); (S.R.G.)
| | - Stuart R. Gray
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow G12 8QQ, UK; (L.S.); (S.R.G.)
| | - Richard K. Russell
- Department of Paediatric Gastroenterology, Royal Hospital for Sick Children, Edinburgh EH16 4TJ, UK;
| | - Jonathan MacDonald
- Department of Gastroenterology, Queen Elizabeth University Hospital, Glasgow G51 4TF, UK; (J.M.); (J.P.S.)
| | - John Paul Seenan
- Department of Gastroenterology, Queen Elizabeth University Hospital, Glasgow G51 4TF, UK; (J.M.); (J.P.S.)
| | - Sze Choong Wong
- Department of Paediatric Endocrinology, Royal Hospital for Children, Glasgow G51 4TF, UK;
| | - Daniel R. Gaya
- Department of Gastroenterology, Glasgow Royal Infirmary, Glasgow G4 0SF, UK
- Correspondence:
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30
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Pereira ACM, de Oliveira Carvalho H, Gonçalves DES, Picanço KRT, de Lima Teixeira dos Santos AVT, da Silva HR, Braga FS, Bezerra RM, de Sousa Nunes A, Nazima MTST, Cerqueira JG, Taglialegna T, Teixeira JM, Carvalho JCT. Co-Treatment of Purified Annatto Oil ( Bixa orellana L.) and Its Granules (Chronic ®) Improves the Blood Lipid Profile and Bone Protective Effects of Testosterone in the Orchiectomy-Induced Osteoporosis in Wistar Rats. Molecules 2021; 26:4720. [PMID: 34443306 PMCID: PMC8399955 DOI: 10.3390/molecules26164720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/28/2021] [Accepted: 07/30/2021] [Indexed: 01/14/2023] Open
Abstract
This study aimed to evaluate and compare the effects of co-treatment with purified annatto oil (PAO) or its granules (GRA, Chronic®) with that of testosterone on the orchiectomy-induced osteoporosis in Wistar rats. After surgery, rats were treated from day 7 until day 45 with testosterone only (TES, 7 mg/kg, IM) or TES + PAO or GRA (200 mg/kg, p.o.). The following parameters were evaluated: food/water intake, weight, HDL, LDL, glucose, triglycerides (TG), total cholesterol (TC), alkaline phosphatase levels, blood phosphorus and calcium contents, femur weight, structure (through scanning electron microscopy), and calcium content (through atomic absorption spectrophotometry). Our results show that orchiectomy could significantly change the blood lipid profile and decrease bone integrity parameters. Testosterone reposition alone could improve some endpoints, including LDL, TC, bone weight, and bone calcium concentration. However, other parameters were not significantly improved. Co-treatment with PAO or GRA improved the blood lipid profile and bone integrity more significantly and improved some endpoints not affected by testosterone reposition alone (such as TG levels and trabeculae sizes). The results suggest that co-treatment with annatto products improved the blood lipid profile and the anti-osteoporosis effects of testosterone. Overall, GRA had better results than PAO.
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Affiliation(s)
- Arlindo César Matias Pereira
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Helison de Oliveira Carvalho
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
- Programa de Pós-Graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil
| | - Danna Emanuelle Santos Gonçalves
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Karyny Roberta Tavares Picanço
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Abrahão Victor Tavares de Lima Teixeira dos Santos
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Heitor Ribeiro da Silva
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Francinaldo Sarges Braga
- Laboratório de Absorção Atômica e Bioprospecção, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (F.S.B.); (R.M.B.)
| | - Roberto Messias Bezerra
- Laboratório de Absorção Atômica e Bioprospecção, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (F.S.B.); (R.M.B.)
| | - Alessandro de Sousa Nunes
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Maira Tiyomi Sacata Tongo Nazima
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - Júlia Gomes Cerqueira
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil; (J.G.C.); (T.T.)
| | - Talisson Taglialegna
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil; (J.G.C.); (T.T.)
| | - Janayra Maris Teixeira
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
| | - José Carlos Tavares Carvalho
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá 68902-280, AP, Brazil; (A.C.M.P.); (H.d.O.C.); (D.E.S.G.); (K.R.T.P.); (A.V.T.d.L.T.d.S.); (H.R.d.S.); (A.d.S.N.); (M.T.S.T.N.); (J.M.T.)
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil; (J.G.C.); (T.T.)
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Using X-ray diffraction in characterization of bone remodeling and nanocomposites in ovariectomized rats osteopenia model. POLISH JOURNAL OF MEDICAL PHYSICS AND ENGINEERING 2021. [DOI: 10.2478/pjmpe-2021-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Sedentary lifestyle and physiological menopause are among the risk factors of osteopenia, especially in elderly people. However, bone mineral density decrease can also be observed in young individuals, for instance, due to deficiency of female sex hormones after surgical interventions, particularly ovariectomy. Our research enabled us to assess the efficacy of whole-body vibration in preventing the loss of bone mineral density in the ovariectomy rat osteopenia model. Thus, whole-body vibration with acceleration level 0.3 g and frequency 50 Hz was used on young female rats, which had been subjected to ovariectomy (n = 18). It had been conducted for 24 weeks, exposure time – 30 minutes per day, 5 times a week. Assessment of mineral component loss of the tibia was performed by means of X-ray diffraction. Bone remodeling was assessed by determining hormones: parathyroid hormone and calcitonin, Ca and P in the blood. X-ray diffraction is an effective method, which enables the evaluation a nanocomposites structure of the bone tissue in the experiment. In the article, we applied this method to determine the loss of bone mineral mass after ovariectomy and the impact of whole-body vibration under such conditions. In the ovariectomy group, the volume of a mineral component significantly decreased starting already from the 16th week (р<0.05) versus control. However, in the group with ovariectomy + whole-body vibration, the loss of a mineral component was insignificant during 8-16 weeks of the investigation, compared with the control group. On the 24th day, the spectrums almost did not differ from ovariectomized rats group. Meanwhile, hormone levels changed in ovariectomized rats group. It should be emphasized that the aforementioned whole-body vibration parameters do not cause severe bone damage or further negative consequences.
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Wang L, Xie S, Zhu S, Gao C, He C. Efficacy of Pulsed Electromagnetic Fields on Experimental Osteopenia in Rodents: A Systematic Review. Bioelectromagnetics 2021; 42:415-431. [PMID: 34004034 DOI: 10.1002/bem.22348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 04/27/2021] [Accepted: 05/01/2021] [Indexed: 02/05/2023]
Abstract
Osteoporosis leads to increased bone fragility and risk of fractures. Different strategies have been employed to reduce bone loss, including the use of a pulsed electromagnetic field (PEMF). Although many experimental studies have demonstrated the effect of PEMF on reduction of bone loss, the outcomes studied are varied and insufficient, and the quality of evidence is unknown. Therefore, the aim of this review was to assess the preclinical evidence on the effect of PEMF on bone loss. The existing challenges were also evaluated, and suggestions were provided to strengthen the quality of evidence in future studies. All original articles concerning the effect of PEMF on osteoporosis in animal models were included. Twenty-four studies met the inclusion criteria, 23 of which suggested that PEMF was effective in reducing bone loss, while one study failed to demonstrate any benefit. Risk of bias analysis suggested that information on key measures to reduce bias was frequently not reported. Animal models for osteoporosis, PEMF intervention regimens, outcomes, and specific bone detection sites seemed to influence the efficacy of PEMF in osteoporosis. Our results indicate the potential benefits of PEMF selection in animal models of osteoporosis. However, due to the heterogeneity of the parameters and the quality of the included literature, comprehensive studies using standardized protocols are warranted to confirm the results. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Liqiong Wang
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, P.R. China.,Rehabilitation Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, P.R. China.,Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu, P.R. China
| | - Suhang Xie
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, P.R. China.,Rehabilitation Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Siyi Zhu
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, P.R. China.,Rehabilitation Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Chengfei Gao
- The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Chengqi He
- Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, P.R. China.,Rehabilitation Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, P.R. China.,Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu, P.R. China
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Panahi N, Ostovar A, Fahimfar N, Gharibzadeh S, Shafiee G, Heshmat R, Raeisi A, Nabipour I, Larijani B, Ghasem-Zadeh A. Grand multiparity associations with low bone mineral density and degraded trabecular bone pattern. Bone Rep 2021; 14:101071. [PMID: 33997148 PMCID: PMC8102397 DOI: 10.1016/j.bonr.2021.101071] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 01/23/2023] Open
Abstract
Introduction Pregnancy is associated with changes in bone remodeling and calcium metabolism, which may increase the risk of fragility fracture after menopause. We hypothesized that in postmenopausal women, with history of grand multiparity, the magnitude of trabecular bone deterioration is associated with number of deliveries. Methods 1217 women aged 69.2 ± 6.4 years, from the Bushehr Elderly Health (BEH) program were recruited. The areal bone mineral density (aBMD) of the lumbar spine and femoral neck and trabecular bone score (TBS) of 916 postmenopausal women, with grand multiparity defined as more than 4 deliveries, were compared with those of 301 postmenopausal women with 4 or fewer deliveries. The association of multiparity with aBMDs and TBS were evaluated after adjustment for possible confounders including age, years since menopause, body mass index, and other relevant parameters. Results The aBMD of femoral neck (0.583 ± 0.110 vs. 0.603 ± 0.113 g/cm2), lumbar spine (0.805 ± 0.144 vs. 0.829 ± 0.140 g/cm2) and TBS (1.234 ± 0.086 vs. 1.260 ± 0.089) were significantly lower in women with history of grand multiparity than others. In the multiple regression analysis, after adjusting for confounders, the negative association did persist for lumbar spine aBMD (beta = −0.02, p value = 0.01), and the TBS (beta = −0.01, p value = 0.03), not for femoral neck aBMD. Conclusion We infer that grand multiparity have deleterious effects on the aBMD and the trabecular pattern of the lumbar spine.
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Affiliation(s)
- Nekoo Panahi
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Afshin Ostovar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Noushin Fahimfar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Safoora Gharibzadeh
- Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
| | - Gita Shafiee
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Heshmat
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Raeisi
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Iraj Nabipour
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Ghasem-Zadeh
- Department of Medicine and Endocrinology, Austin Health, University of Melbourne, Melbourne, Australia
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Allaway HCM, Pierson RA, Invik J, Bloomfield SA. A rodent model of human dose-equivalent progestin-only implantable contraception. Reprod Biol Endocrinol 2021; 19:47. [PMID: 33752672 PMCID: PMC7983206 DOI: 10.1186/s12958-021-00729-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/10/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Long-acting, reversible contraceptives (LARC; progestin only) are an increasingly common hormonal contraceptive choice in reproductive aged women looking to suppress ovarian function and menstrual cyclicity. The overall objective was to develop and validate a rodent model of implanted etonogestrel (ENG) LARC, at body size equivalent doses to the average dose received by women during each of the first 3 years of ENG subdermal rod LARC use. METHODS Intact, virgin, female Sprague-Dawley rats (16-wk-old) were randomized to 1 of 4 groups (n = 8/group) of ENG LARC (high-0.30μg/d, medium-0.17μg/d, low-0.09μg/d, placebo-0.00μg/d) via a slow-release pellet implanted subcutaneously. Animals were monitored for 21 days before and 29 days following pellet implantation using vaginal smears, ultrasound biomicroscopy (UBM), saphenous blood draws, food consumption, and body weights. Data were analyzed by chi-square, non-parametric, univariate, and repeated measures 2-way ANOVA. RESULTS Prior to pellet implantation there was no difference in time spent in estrus cycle phases among the treatment groups (p > 0.30). Following pellet implantation there was a dose-dependent impact on the time spent in diestrus and estrus (p < 0.05), with the high dose group spending more days in diestrus and fewer days in estrus. Prior to pellet insertion there was not an association between treatment group and estrus cycle classification (p = 0.57) but following pellet implantation there was a dose-dependent association with cycle classification (p < 0.02). Measurements from the UBM (ovarian volume, follicle count, corpora lutea count) indicate an alteration of ovarian function following pellet implantation. CONCLUSION Assessment of estrus cyclicity indicated a dose-response relationship in the shift to a larger number of acyclic rats and longer in duration spent in the diestrus phase. Therefore, each dose in this model mimics some of the changes observed in the ovaries of women using ENG LARC and provides an opportunity for investigating the impacts on non-reproductive tissues in the future.
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Affiliation(s)
- Heather C. M. Allaway
- grid.264756.40000 0004 4687 2082Department of Health and Kinesiology, Texas A&M University, College Station, TX USA
| | - Roger A. Pierson
- grid.25152.310000 0001 2154 235XDepartment of Obstetrics & Gynecology, University of Saskatchewan, Saskatoon, SK Canada
- Synergyne Imaging Technology Inc, Saskatoon, SK Canada
| | - Jesse Invik
- Synergyne Imaging Technology Inc, Saskatoon, SK Canada
| | - Susan A. Bloomfield
- grid.264756.40000 0004 4687 2082Department of Health and Kinesiology, Texas A&M University, College Station, TX USA
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Jin ZX, Liao XY, Da WW, Zhao YJ, Li XF, Tang DZ. Osthole enhances the bone mass of senile osteoporosis and stimulates the expression of osteoprotegerin by activating β-catenin signaling. Stem Cell Res Ther 2021; 12:154. [PMID: 33640026 PMCID: PMC7912492 DOI: 10.1186/s13287-021-02228-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/14/2021] [Indexed: 02/08/2023] Open
Abstract
Introduction Osthole has a potential therapeutic application for anti-osteoporosis. The present study verified whether osthole downregulates osteoclastogenesis via targeting OPG. Methods In vivo, 12-month-old male mice were utilized to evaluate the effect of osthole on bone mass. In vitro, bone marrow stem cells (BMSCs) were isolated and extracted from 3-month-old OPG−/− mice and the littermates of OPG+/+ mice. Calvaria osteoblasts were extracted from 3-day-old C57BL/6J mice or 3-day-old OPG−/− mice and the littermates of OPG+/+ mice. Results Osthole significantly increased the gene and protein levels of OPG in primary BMSCs in a dose-dependent manner. The deletion of the OPG gene did not affect β-catenin expression. The deletion of the β-catenin gene inhibited OPG expression in BMSCs, indicating that osthole stimulates the expression of OPG via activation of β-catenin signaling. Conclusion Osthole attenuates osteoclast formation by stimulating the activation of β-catenin-OPG signaling and could be a potential drug for the senile osteoporosis.
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Affiliation(s)
- Zhen-Xiong Jin
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xin-Yuan Liao
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Navy Medical University, Shanghai, 201705, China
| | - Wei-Wei Da
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Yong-Jian Zhao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xiao-Feng Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - De-Zhi Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China. .,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
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O'Leary TJ, Walsh NP, Casey A, Izard RM, Tang JCY, Fraser WD, Greeves JP. Supplementary Energy Increases Bone Formation during Arduous Military Training. Med Sci Sports Exerc 2021; 53:394-403. [PMID: 32701874 DOI: 10.1249/mss.0000000000002473] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE This study aimed to investigate the effect of supplementary energy on bone formation and resorption during arduous military training in energy deficit. METHODS Thirty male soldiers completed an 8-wk military combat course (mean ± SD, age = 25 ± 3 yr, height = 1.78 ± 0.05 m, body mass = 80.9 ± 7.7 kg). Participants received either the habitual diet (control group, n = 15) or an additional 5.1 MJ·d-1 to eliminate the energy deficit (supplemented group, n = 15). Circulating markers of bone formation and resorption, and reproductive, thyroid, and metabolic status, were measured at baseline and weeks 6 and 8 of training. RESULTS Bone-specific alkaline phosphatase decreased in controls (-4.4 ± 1.9 μg·L-1) and increased in the supplemented group (16.0 ± 6.6 μg·L-1), between baseline and week 8 (P < 0.001). Procollagen type 1 N-terminal propeptide increased between baseline and week 6 for both groups (5.6 ± 8.1 μg·L-1, P = 0.005). Beta carboxy-terminal cross-linking telopeptide of type 1 collagen decreased between baseline and week 8 for both groups (-0.16 ± 0.20 μg·L-1, P < 0.001). Prolactin increased from baseline to week 8 for the supplemented group (148 ± 151 IU·L-1, P = 0.041). The increase in adiponectin from baseline to week 8 was higher in controls (4.3 ± 1.8 mg·L-1, P < 0.001) than that in the supplemented group (1.4 ± 1.0 mg·L-1, P < 0.001). Insulin-like growth factor binding protein-3 was lower at week 8 than baseline for controls (-461 ± 395 ng·mL-1, P < 0.001). CONCLUSION The increase in bone-specific alkaline phosphatase, a marker of bone formation, with supplementation supports a role of energy in osteoblastic activity; the implications for skeletal adaptation and stress fracture risk are unclear. The mechanism is likely through protecting markers of metabolic, but not reproductive or thyroid, function.
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Affiliation(s)
- Thomas J O'Leary
- Army Health and Performance Research, Army Headquarters, Andover, UNITED KINGDOM
| | - Neil P Walsh
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | - Anna Casey
- Army Health and Performance Research, Army Headquarters, Andover, UNITED KINGDOM
| | - Rachel M Izard
- Department of Occupational Medicine, HQ Army Recruiting and Initial Training Command, Upavon, UNITED KINGDOM
| | - Jonathan C Y Tang
- Norwich Medical School, University of East Anglia, Norwich, UNITED KINGDOM
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Effects of mechanical stimuli on structure and organization of bone nanocomposites in rats with glucocorticoid-induced osteoporosis. Endocr Regul 2021; 55:42-51. [PMID: 33600670 DOI: 10.2478/enr-2021-0006] [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] [Indexed: 11/20/2022] Open
Abstract
Objective. Clinical use of glucocorticoids is a frequent cause of secondary osteoporosis, which reduces the mineral density of bones and results in pathological fractures. Mechanical stimulation as non-physiological high-frequency vibration with low acceleration prevents the loss of a crystalline component and stimulates the anabolic remodeling of the bone. The aim of the present research was to assess the impact of mechanical vibration on the bone structure in rats, which received glucocorticoids.Methods. Wistar rats were randomized into three groups: Vehicle control (Veh), Methylprednisolone sodium succinate (Mps), and Mps combined with whole-body vibration (WBV). Rats of Mps+WBV and Mps groups received 3 mg/kg/day of methylprednisolone every other day for 24 weeks and rats of Veh group received 0.9% saline (sodium chloride). The group of rats Mps+WBV was subjected to WBV for 30 minutes per day for five days a week with parameters 0.3 g and frequency 50 Hz. Relative amount of crystalline component and collagen in the bones was determined by X-ray diffraction (XRD) and calcium level - by atomic absorption spectroscopy. Bone tissue metabolism was assessed by determining the concentration of markers, in particular osteocalcin and Tartrate-resistant acid phosphatase (TRAP5b).Results. Glucocorticoids induced a considerable increase in the rats body mass (+13%) and decreased the content of mineral component in the femoral neck (-17%) in Mps group compared with Veh. The process of the bone metabolism was significantly accelerated, which is proven by an increased level of remodeling markers. It should be mentioned that WBV did not allow significant decrease in mineral component of the bone to 16th week of the experiment compared with Mps group, although these parameters did not achieve the indices in the Vehicle control group (-10%). Our investigation allows to suggest that mechanical high-frequency vibration of low intensity can partially inhibit the harmful consequences of glucocorticoids on bone structure in rats. Despite the positive impact of vibration on the bone tissue after Mps introduction in the 8th-16th week, this influence was not statistically reliable in the 24th week of the experiment.Conclusions. The results of our investigation on animal model indicate that non-physiological vertical mechanical vibrations are an effective means to prevent loss of a mineral bone component during treatment with glucocorticoids.
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Tiwari D, Gupta P. Nuclear Receptors in Asthma: Empowering Classical Molecules Against a Contemporary Ailment. Front Immunol 2021; 11:594433. [PMID: 33574813 PMCID: PMC7870687 DOI: 10.3389/fimmu.2020.594433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023] Open
Abstract
The escalation in living standards and adoption of 'Western lifestyle' has an allied effect on the increased allergy and asthma burden in both developed and developing countries. Current scientific reports bespeak an association between allergic diseases and metabolic dysfunction; hinting toward the critical requirement of organized lifestyle and dietary habits. The ubiquitous nuclear receptors (NRs) translate metabolic stimuli into gene regulatory signals, integrating diet inflences to overall developmental and physiological processes. As a consequence of such promising attributes, nuclear receptors have historically been at the cutting edge of pharmacy world. This review discusses the recent findings that feature the cardinal importance of nuclear receptors and how they can be instrumental in modulating current asthma pharmacology. Further, it highlights a possible future employment of therapy involving dietary supplements and synthetic ligands that would engage NRs and aid in eliminating both asthma and linked comorbidities. Therefore, uncovering new and evolving roles through analysis of genomic changes would represent a feasible approach in both prevention and alleviation of asthma.
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Affiliation(s)
| | - Pawan Gupta
- Department of Molecular Biology, Council of Scientific and Industrial Research, Institute of Microbial Technology, Chandigarh, India
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Kobayashi T, Hwang I. Association Between Low Bone Mineral Density Risk Factors and Estrogen Receptor α Gene Polymorphisms in Japanese Female Athletes. WOMEN'S HEALTH REPORTS 2021; 2:11-19. [PMID: 33786525 PMCID: PMC7957950 DOI: 10.1089/whr.2020.0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Accepted: 12/09/2020] [Indexed: 11/12/2022]
Abstract
Background: The relationship between bone metabolism-related gene polymorphisms and low bone mineral density (BMD) risk factors in female athletes is unclear. This study aimed at investigating whether the sensitivity of low BMD risk factors to BMD depends on estrogen receptor α (ERα) gene polymorphisms in Japanese female athletes. Materials and Methods: This study included 280 collegiate female athletes from 12 competitive sports (age, 19.2 ± 1.3 years). Data on sports participation, age at menarche, menstrual cycles, prior stress fractures, and prior eating disorders were obtained through a questionnaire-type survey. Sports types were classified into endurance, esthetic, aquatic, ball, and high load in consideration of exercise load characteristics. ERα gene PvuII (rs2234693) and XbaI (rs9340799) polymorphisms were analyzed by TaqMan® assay. The total body BMD was measured by dual-energy X-ray absorptiometry. Results: On multiple regression analysis, sports types, body mass index (BMI), menarche, and XbaI polymorphism remained robust independent predictors of BMD. However, prior stress fractures and menstrual cycles were excluded. In athletes carrying the XX+Xx genotype of XbaI polymorphism, sports types and BMI were associated with BMD. However, in athletes carrying the xx genotype of XbaI polymorphism, sports types, BMI, and menarche were associated with BMD. These results indicated that athletes carrying the xx genotype with delayed menarche had low BMD. Conclusions: In collegiate female athletes, participation in endurance, esthetic, and aquatic sports types and a low BMI are associated with low BMD. In addition, delayed menarche may negatively affect BMD in athletes carrying the xx type of ERα gene XbaI polymorphism.
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Affiliation(s)
- Tetsuro Kobayashi
- Faculty of Sports Science, Nippon Sport Science University, Yokohama, Japan
| | - Inkwan Hwang
- Faculty of Sports Science, Nippon Sport Science University, Yokohama, Japan
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van Gastel J, Leysen H, Boddaert J, Vangenechten L, Luttrell LM, Martin B, Maudsley S. Aging-related modifications to G protein-coupled receptor signaling diversity. Pharmacol Ther 2020; 223:107793. [PMID: 33316288 DOI: 10.1016/j.pharmthera.2020.107793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023]
Abstract
Aging is a highly complex molecular process, affecting nearly all tissue systems in humans and is the highest risk factor in developing neurodegenerative disorders such as Alzheimer's and Parkinson's disease, cardiovascular disease and Type 2 diabetes mellitus. The intense complexity of the aging process creates an incentive to develop more specific drugs that attenuate or even reverse some of the features of premature aging. As our current pharmacopeia is dominated by therapeutics that target members of the G protein-coupled receptor (GPCR) superfamily it may be prudent to search for effective anti-aging therapeutics in this fertile domain. Since the first demonstration of GPCR-based β-arrestin signaling, it has become clear that an enhanced appreciation of GPCR signaling diversity may facilitate the creation of therapeutics with selective signaling activities. Such 'biased' ligand signaling profiles can be effectively investigated using both standard molecular biological techniques as well as high-dimensionality data analyses. Through a more nuanced appreciation of the quantitative nature across the multiple dimensions of signaling bias that drugs possess, researchers may be able to further refine the efficacy of GPCR modulators to impact the complex aberrations that constitute the aging process. Identifying novel effector profiles could expand the effective pharmacopeia and assist in the design of precision medicines. This review discusses potential non-G protein effectors, and specifically their potential therapeutic suitability in aging and age-related disorders.
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Affiliation(s)
- Jaana van Gastel
- Receptor Biology Lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium; Faculty of Pharmacy, Biomedical and Veterinary Science, University of Antwerp, Antwerp, Belgium
| | - Hanne Leysen
- Receptor Biology Lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium; Faculty of Pharmacy, Biomedical and Veterinary Science, University of Antwerp, Antwerp, Belgium
| | - Jan Boddaert
- Molecular Pathology Group, Faculty of Medicine and Health Sciences, Laboratory of Cell Biology and Histology, Antwerp, Belgium
| | - Laura Vangenechten
- Receptor Biology Lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Louis M Luttrell
- Division of Endocrinology, Diabetes & Medical Genetics, Medical University of South Carolina, USA
| | - Bronwen Martin
- Faculty of Pharmacy, Biomedical and Veterinary Science, University of Antwerp, Antwerp, Belgium
| | - Stuart Maudsley
- Receptor Biology Lab, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium; Faculty of Pharmacy, Biomedical and Veterinary Science, University of Antwerp, Antwerp, Belgium.
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Wu H, Kioumourtzoglou MA, Just AC, Kloog I, Sanders A, Svensson K, McRae N, Tamayo-Ortiz M, Solano-González M, Wright RO, Téllez-Rojo MM, Baccarelli AA. Association of ambient PM 2·5 exposure with maternal bone strength in pregnant women from Mexico City: a longitudinal cohort study. Lancet Planet Health 2020; 4:e530-e537. [PMID: 33159880 PMCID: PMC7664993 DOI: 10.1016/s2542-5196(20)30220-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/25/2020] [Accepted: 08/25/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Pregnancy is associated with deteriorations in maternal bone strength and heightened susceptibility to bone fractures. We aimed to investigate whether ambient particulate matter (PM)2·5 concentrations were associated with bone strength during pregnancy. METHODS In this longitudinal cohort study, we analysed longitudinal data from women participating in the Programming Research in Obesity, Growth, Environment and Social Stressors (PROGRESS) cohort in Mexico City, Mexico. Eligible women were aged 18 years or older, at less than 20 weeks' gestation at the time of recruitment, planning to stay in Mexico City for the next 3 years, without heart or kidney disease, did not use steroids or anti-epileptic drugs, were not daily consumers of alcohol, and had access to a telephone. Daily ambient PM2·5 concentrations were estimated from a spatio-temporal model that was based on the individual's address. Trabecular bone strength was measured using quantitative ultrasound from the radius of the middle finger and cortical bone strength from the proximal phalanx of the middle finger, during the second trimester, third trimester, and 1 and 6 months post partum. Bone strength T scores were modelled with PM2·5 concentrations using linear mixed models and distributed lag models. FINDINGS Adjusting for multiple exposure windows, each 10 ug/m3 increase in PM2·5 exposure concentrations in the first trimester was associated with a 0·18 SD decrease (95% CI -0·35 to -0·01; p=0·033) in ultrasound speed-of-sound (SOS) T score of trabecular bone strength from the second trimester until 6 months post partum. Similarly, each 10 μg/m3 increase in third trimester PM2·5 exposure was associated with a 0·18 SD decrease (-0·36 to -0·01; p=0·044) in the SOS T score of trabecular bone strength from the third trimester until 6 months post partum. PM2·5 exposure in the first month post partum was associated with a 0·20 SD decline (-0·39 to -0·01; p=0·043) in cortical bone strength until 6 months post partum. INTERPRETATION Ambient PM2·5 exposure during and after pregnancy was associated with diminished trabecular and cortical bone strength. Early pregnancy PM2·5 exposure was associated with a greater decline in bone strength later during pregnancy. Late pregnancy and early post-partum exposures adversely affected the post-partum bone strength recovery. Technological and policy solutions to reduce PM2·5 pollution could improve public health by reducing bone fracture risk. FUNDING US National Institute of Environmental Health Sciences.
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Affiliation(s)
- Haotian Wu
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | | | - Allan C Just
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Itai Kloog
- Department of Geography, Ben Gurion University of the Negev, Be'er Sheva, Israel
| | - Alison Sanders
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Nia McRae
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marcela Tamayo-Ortiz
- Center for Nutrition and Health Research, National Institute of Public Health, Ministry of Health, Cuernavaca, Morelos, Mexico; Mexican Council for Science and Technology, Mexico City, Mexico
| | - Maritsa Solano-González
- Center for Nutrition and Health Research, National Institute of Public Health, Ministry of Health, Cuernavaca, Morelos, Mexico
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Martha M Téllez-Rojo
- Center for Nutrition and Health Research, National Institute of Public Health, Ministry of Health, Cuernavaca, Morelos, Mexico
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
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Bui M, Zebaze R, Li S, Hopper JL, Bjørnerem Å. Are the Relationships of Lean Mass and Fat Mass With Bone Microarchitecture Causal or Due to Familial Confounders? A Novel Study of Adult Female Twin Pairs. JBMR Plus 2020; 4:e10386. [PMID: 32995689 PMCID: PMC7507375 DOI: 10.1002/jbm4.10386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 06/12/2020] [Accepted: 06/24/2020] [Indexed: 12/26/2022] Open
Abstract
It is not known whether the relationships of lean mass (LM) and fat mass (FM) with bone microarchitecture and geometry are causal and/or are because of confounders, including familial confounders arising from genetic and environment effects shared by relatives. We tested the hypotheses that: (i) LM is associated with cortical bone traits, (ii) FM is associated with trabecular bone traits, and (iii) these relationships of LM and FM with bone microarchitecture and geometry have a causal component. Total body composition was quantified for 98 monozygotic (MZ) and 54 dizygotic (DZ) white female twin pairs aged 31 to 77 years. Microarchitecture at the distal tibia and distal radius was quantified using HRpQCT and StrAx software. We applied the Inference about Causation through Examination of FAmiliaL CONfounding (ICE FALCON) method. Within‐individuals, distal tibia total bone area, cortical area, cortical thickness, and trabecular number were positively associated with LM (standardized regression coefficient (β) = 0.13 to 0.43; all p < 0.05); porosity of the inner transitional zone (ITZ) was negatively associated with LM (β = −0.22; p < 0.01). Trabecular number was positively associated with FM (β = 0.40; p < 0.001), and trabecular thickness was negatively associated with FM (β = −0.27; p < 0.001). For porosity of ITZ and trabecular number, the cross‐pair cross‐trait association with LM was significant before and after adjustment for the within‐individual association with LM (all ps < 0.05). For trabecular number, the cross‐pair cross‐trait association with FM was significant before and after adjustment for the within‐individual association with FM (p < 0.01). There were no significant changes in these cross‐pair cross‐trait associations after adjustment for the within‐individual association (p = 0.06 to 0.99). Similar results were found for distal radius measures. We conclude that there was no evidence that the relationships of LM and FM with bone microarchitecture and geometry are causal; they must in part due to by familial confounders affecting both bone architecture and body composition. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Minh Bui
- Centre for Epidemiology and Biostatistics, School of Population and Global Health University of Melbourne Melbourne Victoria Australia
| | - Roger Zebaze
- Department of Medicine, School of Clinical Sciences Monash University Melbourne Victoria Australia
| | - Shuai Li
- Centre for Epidemiology and Biostatistics, School of Population and Global Health University of Melbourne Melbourne Victoria Australia.,Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care University of Cambridge Cambridge UK
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, School of Population and Global Health University of Melbourne Melbourne Victoria Australia
| | - Åshild Bjørnerem
- Department of Clinical Medicine UiT - The Arctic University of Norway Tromsø Norway.,Department of Obstetrics and Gynecology University Hospital of North Norway Tromsø Norway
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Cunha AS, Vertuan Dos Santos L, Schaffer Pugsley Baratto S, Abbasoglu Z, Gerber JT, Paza A, Matsumoto MAN, Scariot R, Stuani MB, Küchler EC. Human permanent tooth sizes are associated with genes encoding oestrogen receptors. J Orthod 2020; 48:24-32. [PMID: 32985343 DOI: 10.1177/1465312520958710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To evaluate if genetic polymorphisms in the oestrogen receptor 1 (ESR1) and oestrogen receptor 2 (ESR2) genes encoded for oestrogen receptors alpha (ERα) and beta (ERβ) are involved in permanent tooth size. DESIGN Cross-sectional study. SETTING Orthodontic Clinic at School of Dentistry of Ribeirão Preto, University of São Paulo. PARTICIPANTS A total of 108 orthodontic patients. MATERIALS AND METHODS Pre-treatment orthodontic records were evaluated. Dental casts were used to determine the maximum crown measurements of fully erupted permanent teeth in the mesiodistal dimensions. Second and third molars were not included in the analysis. Genomic DNA samples were used for the genotyping of four genetic polymorphisms: ESR1 (rs9340799 and rs2234693) and ESR2 (rs1256049 and rs4986938). The associations between tooth size and sex were evaluated using t test. The associations between tooth size and genotype were analysed with linear regression and adjusted by sex at an alpha of P⩽0.05. RESULTS Female patients presented smaller tooth size than male patients. A statistically significant difference was observed in almost all teeth (P<0.05). The genetic polymorphisms in rs9340799, rs2234693, rs1256049 and rs4986938 were associated with some tooth sizes in both the maxilla and mandible (P<0.05). CONCLUSION This study provides evidence that genetic polymorphisms in ESR1 and ESR2 could be associated with tooth size in permanent teeth.
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Affiliation(s)
- Arthur S Cunha
- Department of Orthodontics, School of Dentistry, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiza Vertuan Dos Santos
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Zerrin Abbasoglu
- Department of Pediatric Dentistry, Yeditepe University, Istanbul, Turkey
| | - Jennifer Tsi Gerber
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
| | - Aleysson Paza
- School of Dentistry, Univille University, Joinville, Brazil
| | - Mírian Aiko Nakane Matsumoto
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rafaela Scariot
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
| | - Maria Bernadete Stuani
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Pereira-Eshraghi CF, Chiuzan C, Zhang Y, Tao RH, McCann M, Neugut YD, Printz A, Fennoy I, Cree-Green M, Oberfield SE, Sopher AB. Obesity and Insulin Resistance, Not Polycystic Ovary Syndrome, Are Independent Predictors of Bone Mineral Density in Adolescents and Young Women. Horm Res Paediatr 2020; 92:365-371. [PMID: 32348991 PMCID: PMC7308184 DOI: 10.1159/000507079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 03/09/2020] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders that affects females of reproductive age. The characteristic features of PCOS individually have opposing effects on bone mineral density (BMD); however, their cumulative effect on BMD has not been clearly defined. Adolescence and young adulthood span a crucial period in achieving peak bone mass. Thus, a better understanding of the impact of PCOS on BMD in this age group is needed. OBJECTIVES To determine whether BMD is different between young females with PCOS and controls and to identify factors that influence BMD in this population. METHODS Data from four cross-sectional studies with a total of 170 females aged 12-25 years with PCOS (n = 123) and controls (n = 47) with a wide range of BMIs (18.7-53.4 kg/m2) were analyzed. Participants had fasting glucose, insulin, and free and total testosterone concentrations measured. HOMA-IR was calculated. Whole-body BMD was assessed by dual-energy X-ray absorptiometry. Multiple regression analysis for predicting BMD included PCOS status, menstrual age, obesity, HOMA-IR, and free testosterone. RESULTS HOMA-IR and total and free testosterone were significantly higher in PCOS compared to controls but there was no difference in BMD z-score between PCOS (0.8 ± 1.0) and controls (0.6 ± 1.0) (p = 0.36). Obesity (p = 0.03) and HOMA-IR (p = 0.02) were associated with BMD z-score. CONCLUSIONS Obesity status and insulin resistance, but not PCOS status, were each independently associated with BMD in adolescents and young women who spanned a wide range of BMIs.
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Affiliation(s)
- Camila F Pereira-Eshraghi
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA,
| | - Codruta Chiuzan
- Department of Biostatistics, Mailman School of Public Health, Columbia University Irving Medical Center, New York, New York, USA
| | - Yuan Zhang
- Department of Biostatistics, Mailman School of Public Health, Columbia University Irving Medical Center, New York, New York, USA
| | - Rachel H Tao
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA
| | - Matthew McCann
- Institute of Human Nutrition, Columbia University Irving Medical Center, New York, New York, USA
| | - Y Dana Neugut
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA
| | - Alison Printz
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA
| | - Ilene Fennoy
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA
| | - Melanie Cree-Green
- Center for Women's Health Research, Aurora, Colorado, USA
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Colorado Anschutz Medical Campus and Children's Hospital Colorado, Aurora, Colorado, USA
| | - Sharon E Oberfield
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA
| | - Aviva B Sopher
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Columbia University Irving Medical Center, New York, New York, USA
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Zhou S, Huang G, Chen G. Synthesis and biological activities of drugs for the treatment of osteoporosis. Eur J Med Chem 2020; 197:112313. [PMID: 32335412 DOI: 10.1016/j.ejmech.2020.112313] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/06/2020] [Accepted: 04/06/2020] [Indexed: 12/15/2022]
Abstract
Osteoporosis is an asymptomatic progressive disease. With the improvement of people's living standard and the aging of population, osteoporosis and its fracture have become one of the main diseases threatening the aging society. The serious medical and social burden caused by this has aroused wide public concern. Osteoporosis is listed as one of the three major diseases of the elderly. At present, the drugs for osteoporosis include bone resorption inhibitors and bone formation promoters. The purpose of these anti-osteoporosis drugs is to balance osteoblast bone formation and osteoclast bone resorption. With the development of anti-osteoporosis drugs, new anti osteoporosis drugs have been designed and synthesized. There are many kinds of new compounds with anti osteoporosis activity, but most of them are concentrated on the original drugs with anti osteoporosis activity, or the natural products with anti-osteoporosis activity are extracted from the natural products for structural modification to obtain the corresponding derivatives or analogues. These target compounds showed good ALP activity in vitro and in vivo, promoted osteoblast differentiation and mineralization, or had anti TRAP activity, inhibited osteoclast absorption. This work attempts to systematically review the studies on the synthesis and bioactivity of anti-osteoporosis drugs in the past 10 years. The structure-activity relationship was discussed, which provided a reasonable idea for the design and development of new anti-osteoporosis drugs.
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Affiliation(s)
- Shiyang Zhou
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Gangliang Huang
- Active Carbohydrate Research Institute, Chongqing Key Laboratory of Green Synthesis and Application, College of Chemistry, Chongqing Normal University, Chongqing, 401331, China.
| | - Guangying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China.
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Lanhers C, Courteix D, Valente-Dos-Santos J, Ferry B, Gracia-Marco L, Pereira B, Borda IM, Lespessailles E, Duclos M. Gonadal hormones may predict structural bone fragility in elite female soccer player. J Sports Sci 2020; 38:827-837. [PMID: 32149566 DOI: 10.1080/02640414.2020.1735982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Purpose: This study determined the impact of menstrual status on bone tissue in elite post-pubertal female soccer players over an entire season.Methods: Fifty-one elite female soccer players participated. At baseline, forty-one were assigned to the low hormonal androgenic profile (low-HAPL) and 10 to the high hormonal androgenic profile (high-HAPL).Results: An 8-month training program led to increased bone mineral density content (p<0.05). The low-HAPL athletes improved the Narrow neck average cortical thickness (ACT) by 1.4% and reduced the corresponding Buckling ratio (BR) by 2.6%, thus decreasing the fracture risk (p<0.05). The high-HAPL athletes decreased the Narrow neck ACT by 5.4% and increased the BR by 2.6%, increasing fracture risk (p<0.05). Differences were assigned as being "very likely beneficial" for the low-HAPL athletes, supported by very large (d=3.41) and large (d=1.58) effect sizes for the Narrow neck ACT and BR, respectively.Conclusion: A season of soccer training has induced bone geometry improvements in adolescent females. Bone health parameters improved in the two clusters. However, high-HAPL athletes decreased its resistance to loading compare to low-HAPL athletes. Even if female players do not present clinical symptoms related to their hormonal status, sport medicine physicians should pay attention to their structural bone fragility.
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Affiliation(s)
- Charlotte Lanhers
- Sport Medicine and Functional Explorations, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France.,Physical Medicine and Rehabilitation, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France.,Unité De Nutrition Humaine (UNH), Université Clermont Auvergne, INRA, Clermont-Ferrand, France
| | - Daniel Courteix
- Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions (AME2P), University Clermont Auvergne, Clermont-Ferrand, France
| | - João Valente-Dos-Santos
- Research Unity for Sport and Physical Activity (CIDAF, UID/DTP/04213/2016), University of Coimbra, Coimbra, Portugal.,FCT, Foundation for Science and Technology, Portuguese Foundation for Science and Technology (SFRH/BPD/100470/2014), Lisbon, Portugal.,Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.,Faculty of Physical Education and Sport, Lusófona University of Humanities and Technologies, Lisbon, Portugal
| | - Beatrice Ferry
- I3MTO, University of Orléans, Orléans, France.,Rheumatology, CHR Orléans, Orléans, France
| | - Luis Gracia-Marco
- Growth, Exercise, NUtrition and Development (GENUD) Research Group, Universidad De Zaragoza, Zaragoza, Spain.,PROmoting FITness and Health through Physical Activity (PROFITH) Research Group, Department of Physical Education and Sports, University of Granada, Granada, Spain
| | - Bruno Pereira
- Department of Clinical Research and Innovation (DRCI), University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France
| | - Ileana Monica Borda
- Clinical Rehabilitation Hospital, University of Medicine and Pharmacy "Luliu Hatieganu", Cluj-Napoca, Romania
| | - Eric Lespessailles
- I3MTO, University of Orléans, Orléans, France.,Rheumatology, CHR Orléans, Orléans, France
| | - Martine Duclos
- Sport Medicine and Functional Explorations, University Hospital of Clermont-Ferrand (CHU), Clermont-Ferrand, France.,Unité De Nutrition Humaine (UNH), Université Clermont Auvergne, INRA, Clermont-Ferrand, France
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47
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Hardy E, Fernandez-Patron C. Destroy to Rebuild: The Connection Between Bone Tissue Remodeling and Matrix Metalloproteinases. Front Physiol 2020; 11:47. [PMID: 32116759 PMCID: PMC7013034 DOI: 10.3389/fphys.2020.00047] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/21/2020] [Indexed: 12/11/2022] Open
Abstract
Bone is a dynamic organ that undergoes constant remodeling, an energetically costly process by which old bone is replaced and localized bone defects are repaired to renew the skeleton over time, thereby maintaining skeletal health. This review provides a general overview of bone’s main players (bone lining cells, osteocytes, osteoclasts, reversal cells, and osteoblasts) that participate in bone remodeling. Placing emphasis on the family of extracellular matrix metalloproteinases (MMPs), we describe how: (i) Convergence of multiple protease families (including MMPs and cysteine proteinases) ensures complexity and robustness of the bone remodeling process, (ii) Enzymatic activity of MMPs affects bone physiology at the molecular and cellular levels and (iii) Either overexpression or deficiency/insufficiency of individual MMPs impairs healthy bone remodeling and systemic metabolism. Today, it is generally accepted that proteolytic activity is required for the degradation of bone tissue in osteoarthritis and osteoporosis. However, it is increasingly evident that inactivating mutations in MMP genes can also lead to bone pathology including osteolysis and metabolic abnormalities such as delayed growth. We argue that there remains a need to rethink the role played by proteases in bone physiology and pathology.
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Affiliation(s)
| | - Carlos Fernandez-Patron
- Department of Biochemistry, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada
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Loucks AB. Exercise Training in the Normal Female: Effects of Low Energy Availability on Reproductive Function. ENDOCRINOLOGY OF PHYSICAL ACTIVITY AND SPORT 2020. [DOI: 10.1007/978-3-030-33376-8_11] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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49
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Quintino-Moro A, Zantut-Wittmann DE, Silva Dos Santos PN, Silva CA, Bahamondes L, Fernandes A. Changes in calcium metabolism and bone mineral density in new users of medroxyprogesterone acetate during the first year of use. Int J Gynaecol Obstet 2019; 147:319-325. [PMID: 31479152 DOI: 10.1002/ijgo.12958] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 06/19/2019] [Accepted: 08/30/2019] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To evaluate calcium metabolism and bone mineral density (BMD) in new users of depot medroxyprogesterone acetate (DMPA) in the first year of use. METHODS This prospective, non-randomized study, conducted at the University of Campinas, São Paulo, Brazil, was carried out between February 2011 and February 2013. Women aged from 18 to 40 with a body mass index (BMI, calculated as weight in kilograms divided by the square of height in meters) <30 and with no known history of disease or medication use who chose to use DMPA were paired by age (±1 year) and BMI (±1) with women commencing the use of a copper intrauterine device (IUD). The primary outcomes were BMD measured by dual-energy X-ray absorptiometry and calcium metabolism markers; other variables were body composition and lifestyle habits. Repeated measures analysis of variance (ANOVA) and multiple regression analyses were used to evaluate associations. RESULTS Twenty-seven women using DMPA and 24 using IUD were evaluated, with a mean age of 29.7 years and 28.6 years, respectively. The DMPA group presented with a 3.6% (P<0.001) loss of lumbar spine BMD, a 2.1% (P=0.100) loss of femoral neck BMD and higher phosphorus (P=0.014) concentrations at 12 months compared to the IUD group. The decreases in BMD were associated with the use of DMPA, while total mass and coffee intake were found to be protective factors. CONCLUSION Changes in calcium metabolism and a decrease in BMD were found in the DMPA group at 12 months.
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Affiliation(s)
- Alessandra Quintino-Moro
- Family Planning Clinic, Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Denise E Zantut-Wittmann
- Division of Endocrinology, Department of Internal Medicine, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Priscilla N Silva Dos Santos
- Family Planning Clinic, Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Conceição A Silva
- Division of Endocrinology, Department of Internal Medicine, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Luis Bahamondes
- Family Planning Clinic, Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, São Paulo, Brazil
| | - Arlete Fernandes
- Family Planning Clinic, Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, São Paulo, Brazil
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50
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Abdelsamie AS, Salah M, Siebenbürger L, Hamed MM, Börger C, van Koppen CJ, Frotscher M, Hartmann RW. Development of potential preclinical candidates with promising in vitro ADME profile for the inhibition of type 1 and type 2 17β-Hydroxysteroid dehydrogenases: Design, synthesis, and biological evaluation. Eur J Med Chem 2019; 178:93-107. [PMID: 31176098 DOI: 10.1016/j.ejmech.2019.05.084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/13/2019] [Accepted: 05/29/2019] [Indexed: 12/17/2022]
Abstract
Estrogens are the major female sex steroid hormones, estradiol (E2) being the most potent form in humans. Disturbing the balance between E2 and its weakly active oxidized form estrone (E1) leads to diverse types of estrogen-dependent diseases such as endometriosis or osteoporosis. 17β-Hydroxysteroid dehydrogenase type 1 (17β-HSD1) catalyzes the biosynthesis of E2 by reduction of E1 while the type 2 enzyme catalyzes the reverse reaction. Thus, 17β-HSD1 and 17β-HSD2 are attractive targets for treatment of estrogen-dependent diseases. Recently, we reported the first proof-of-principle study of a 17β-HSD2 inhibitor in a bone fracture mouse model, using subcutaneous administration. In the present study, our aim was to improve the in vitro ADME profile of the most potent 17β-HSD1 and 17β-HSD2 inhibitors described so far. The optimized compounds show strong and selective inhibition of both the human enzymes and their murine orthologs. In addition, they display good metabolic stability in human liver microsomes (S9 fraction), low in vitro cytotoxicity as well as better aqueous solubility and physicochemical properties compared to the lead compounds. These achievements make the compounds eligible for testing in preclinical in vivo animal model studies on the effects of inhibition of 17β-HSD1 and 17β-HSD2.
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Affiliation(s)
- Ahmed S Abdelsamie
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), Department of Drug Design and Optimization, Campus Building E8.1, 66123, Saarbrücken, Germany; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Saarbrücken, Germany; Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, 12622, Cairo, Egypt.
| | - Mohamed Salah
- Department of Pharmaceutical and Medicinal Chemistry, Saarland University, 66123, Saarbrücken, Germany
| | | | - Mostafa M Hamed
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), Department of Drug Design and Optimization, Campus Building E8.1, 66123, Saarbrücken, Germany; German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Saarbrücken, Germany
| | - Carsten Börger
- PharmBioTec GmbH, Science Park 1, 66123, Saarbrücken, Germany
| | - Chris J van Koppen
- Department of Pharmaceutical and Medicinal Chemistry, Saarland University, 66123, Saarbrücken, Germany; ElexoPharm GmbH, Im Stadtwald, Building A1.2, 66123, Saarbrücken, Germany
| | - Martin Frotscher
- Department of Pharmaceutical and Medicinal Chemistry, Saarland University, 66123, Saarbrücken, Germany
| | - Rolf W Hartmann
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI), Department of Drug Design and Optimization, Campus Building E8.1, 66123, Saarbrücken, Germany; Department of Pharmaceutical and Medicinal Chemistry, Saarland University, 66123, Saarbrücken, Germany
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