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Chatzivasileiou P, Armeni E, Chedraui P, Kontou L, Augoulea A, Palaiologou A, Kaparos G, Panoulis K, Alexandrou A, Vlachos N, Lambrinoudaki I. Postmenopausal women with higher TSH values within the normal range present improved handgrip strength: a pilot study. Gynecol Endocrinol 2024; 40:2333432. [PMID: 38567465 DOI: 10.1080/09513590.2024.2333432] [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: 11/06/2023] [Accepted: 03/14/2024] [Indexed: 04/04/2024] Open
Abstract
OBJECTIVE To evaluate the possible association between thyroid function within the euthyroid range and musculoskeletal parameters as well as body composition in a sample of postmenopausal women. METHODS This cross-sectional study included 96 postmenopausal women with serum thyroid-stimulating hormone (TSH) within the normal laboratory reference range. Fasting venous blood samples were obtained for biochemical/hormonal assessment. Bone status and body composition were measured using Dual Energy X-ray absorptiometry (DXA). Physical activity was quantified using the International Physical Activity Questionnaire (IPAQ) index. RESULTS Serum TSH correlated with handgrip strength (HGS, r-coefficient = 0.233, p = .025), and total body bone mineral density (BMD) T-score values (r-coefficient = 0.321, p = .003). HGS measures were associated with BMD (r-coefficient = 0.415, p < .001), with bone mineral content (BMC, r-coefficient = 0.427, p < .001), and lean mass (r-coefficient = 0.326, p = .003). Women with low muscle strength, defined as HGS < 16 kg, had lower TSH levels than women with normal muscle strength (low vs. normal muscle strength, ANCOVA 1.13 ± 0.49 mU/L vs. 1.60 ± 0.83 mU/L, p = 0.024) independently of age, BMD, percentage of body fat or absolute lean mass. Multivariable linear regression analysis showed that HGS values were associated with TSH measurements (β-coefficient = 0.246, p = .014) and BMD T-score values (β-coefficient = 0.306, p = .002). All models were adjusted for age, body mass index (BMI), vitamin D, low-density lipoprotein cholesterol, current smoking, physical activity, and homeostasis model assessment of insulin resistance. CONCLUSIONS In this sample of postmenopausal women, lower serum TSH values, within normal range, were associated with lower muscle strength compared to higher normal TSH values. Further research is needed to elucidate the significance of our preliminary findings.
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Affiliation(s)
- Panagiota Chatzivasileiou
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Eleni Armeni
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
- Royal Free Hospital, NHS Foundation Trust, University College London Medical School, London, UK
| | - Peter Chedraui
- Escuela de Posgrado en Salud, Universidad Espíritu Santo, Samborondón, Ecuador
| | - Loraina Kontou
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Areti Augoulea
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Anastasia Palaiologou
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - George Kaparos
- Biochemical Laboratory, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Konstantinos Panoulis
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Andreas Alexandrou
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Nikolaos Vlachos
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
| | - Irene Lambrinoudaki
- Second Department of Obstetrics and Gynecology, Menopause Clinic, Aretaieio Hospital, University of Athens, Athens, Greece
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Lu C, Dharmalingam M, R MP, Y P G, Selvan C, Kalra P. Bone Mineral Density and Bone Turnover Marker in a Subclinical Thyrotoxic State in Young Premenopausal Women. Cureus 2024; 16:e52610. [PMID: 38374858 PMCID: PMC10875710 DOI: 10.7759/cureus.52610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Subclinical thyrotoxicosis (SCH) is characterized by normal serum thyroid hormone levels and low thyrotropin levels. The impact of this condition on the skeletal system may vary depending on its cause, yet the relationship is not fully comprehended in premenopausal women. Studies are scarce about its effects on bone health in our population. OBJECTIVES This study aims to evaluate the bone mineral density (BMD) and bone turnover markers in premenopausal women with SCH and determine if any differences exist based on the condition's etiology. METHODS A cross-sectional study was conducted at Ramaiah Medical College involving 36 participants for one year and six months after approval from the Ethics Committee. The carboxy-terminal telopeptide of type I collagen in blood and BMD were measured at the lumbar vertebrae (L1-L4) and femoral neck by dual-energy x-ray absorptiometry (Hologic v 2.0, Hologic, Massachusetts, U.S.). Statistical analysis was done using IBM SPSS Statistics for Windows, Version 20 (Released 2011; IBM Corp., Armonk, New York, United States). Results: The mean age of the study population was 35.2 ± 7.2 years. The etiology was Graves' disease [n=11 (33.3%)], iatrogenic [n=14(38.8%)], toxic adenoma [n=6 (15.1%)], and multi-nodular goiter [n=5 (15.1%)]. The mean BMI was 23.5 ± 3.8 kg/m2, and the mean levels of corrected calcium, phosphorus, and 25 hydroxy-vitamin D were 9.12 ± 0.25 mg/dl, 2.95 ± 0.34 mg/dl, and 29.4 ± 6.4 ng/ml, respectively. The mean BMD at hip and spine was 0.81 ±0.16 g/cm2 and 0.92±0.08 g/cm2 respectively. The mean Z-score was (-0.02 ± 0.8) and (-0.92± 0.08) at the hip and spine. No significant difference was observed in the BMD at the hip (p = 0.14) or spine (p = 0.44) between the endogenous and exogenous subclinical thyrotoxic subgroups. At the same time, the carboxy-terminal telopeptide of type I collagen was significantly different between the two groups (p<0.05). CONCLUSION In our cross-sectional study of premenopausal women with SCH, BMD at the hip or spine as measured by dual-energy X-ray absorptiometry did not reveal any significant reduction. The subclinical thyrotoxic state may not have an adverse effect on bone health in premenopausal females with sufficient levels of serum 25-hydroxy-vitamin D in the short term.
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Affiliation(s)
- Chirag Lu
- Endocrinology and Diabetes, Ramaiah Medical College, Bengaluru, IND
| | - Mala Dharmalingam
- Endocrinology and Diabetes, Bangalore Endocrinology and Diabetes Research Centre, Bengaluru, IND
| | - Manjunath P R
- Endocrinology and Diabetes, Ramaiah Medical College, Bengaluru, IND
| | - Ganavi Y P
- Endocrinology and Diabetes, Ramaiah Medical College, Bengaluru, IND
| | - Chitra Selvan
- Endocrinology and Diabetes, Ramaiah Medical College, Bengaluru, IND
| | - Pramila Kalra
- Endocrinology and Diabetes, Ramaiah Medical College, Bengaluru, IND
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Ozturk EMA, Artas A. Evaluation of Bone Mineral Changes in Panoramic Radiographs of Hypothyroid and Hyperthyroid Patients Using Fractal Dimension Analysis. J Clin Densitom 2024; 27:101443. [PMID: 38070428 DOI: 10.1016/j.jocd.2023.101443] [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: 10/11/2023] [Accepted: 11/13/2023] [Indexed: 02/16/2024]
Abstract
Objective Hyperthyroidism and hypothyroidism are endocrinopathies that cause a decrease in bone mineral density. The aim of this study is to investigate possible bone changes in the mandible caused by hyperthyroidism and hypothyroidism using fractal analysis (FA) on panoramic radiographs. Material and Methods Panoramic radiographs of a total of 180 patients, including 120 patient groups (60 hyperthyroid, 60 hypothyroid) and 60 healthy control groups, were used. Five regions of interests (ROI) were determined from panoramic radiographs and FA was performed. ROI1: geometric midpoint of mandibular notch and mandibular foramen, ROI2: geometric midpoint of mandibular angle, ROI3: anterior of mental foramen, ROI4: basal cortical area from distal mental foramen to distal root of first molar, ROI5: geometric center of mandibular foramen and mandibular ramus. Results While a significant difference was observed between the patient and control groups regarding ROI1 and ROI2 (p < 0.05); there was no significant difference between the groups in relation to ROI3, ROI4, and ROI5. All FA values were lower in the hyperthyroid group than in the hypothyroid group. Conclusion Fractal analysis proves to be an effective method for early detection of bone mass changes. In the present study, it was concluded that while the mandibular cortical bone was intact, trabecular rich regions were affected by osteoporosis caused by thyroid hormones. Necessary precautions should be taken against the risk of osteoporosis in patients with thyroid hormone disorders.
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Affiliation(s)
- Elif Meltem Aslan Ozturk
- DDS, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara Medipol University, Cankaya, Ankara, Turkey.
| | - Aslihan Artas
- DDS, Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Sütcü Imam University, 46050 Onikisubat, Kahramanmaras, Turkey
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Bouman K, Dittrich ATM, Groothuis JT, van Engelen BGM, Zweers-van Essen H, de Baaij-Daalmeyer A, Janssen MCH, Erasmus CE, Draaisma JMT, Voermans NC. Bone quality in LAMA2-related muscular dystrophy and SELENON-related congenital myopathy, a one-year prospective natural history study. Neuromuscul Disord 2024; 34:105-113. [PMID: 38160563 DOI: 10.1016/j.nmd.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/09/2023] [Accepted: 11/26/2023] [Indexed: 01/03/2024]
Abstract
Fragility fractures are frequently reported in neuromuscular diseases and negatively influence functional prognosis, quality of life and survival. In LAMA2-related muscular dystrophy (LAMA2-MD) and SELENON(SEPN1)-related congenital myopathy (SELENON-RM) cross-sectional and prospective natural history studies on bone quality and fragility long bone fractures (LBFs) are lacking. We therefore aim to systematically assess bone quality and provide recommendations for clinical care. We performed a one-year prospective natural history study in 21 LAMA2-MD and 10 SELENON-RM patients including a standardized fracture history and bone quality assessment through dual energy Xray absorptiometry scan (DEXA-scan) and/or bone health index (BHI). Ninety percent of the LAMA2-MD and SELENON-RM patients showed low bone quality. Eight (38%) LAMA2-MD and five (50%) SELENON-RM patients had a history of fragility LBFs. During the one-year follow-up period, one LAMA2-MD patient (female, 3 years) experienced a fragility LBF of the right humerus. We found no difference in bone mineral density between baseline and one-year follow-up. Based on general international guidelines for osteoporosis, we advise adequate vitamin D and calcium intake, and standardized clinical follow-up through a DEXA-scan or BHI in all LAMA2-MD and SELENON-RM patients. On indication, patients should be referred to the pediatrics or internal medicine for consideration of additional treatments.
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Affiliation(s)
- Karlijn Bouman
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Pediatric Neurology, Donders Institute for Brain, Cognition and Behaviour, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Anne T M Dittrich
- Department of Pediatrics, Radboud Institute for Health Sciences, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jan T Groothuis
- Department of Rehabilitation, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Baziel G M van Engelen
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Heidi Zweers-van Essen
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Anja de Baaij-Daalmeyer
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Mirian C H Janssen
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Corrie E Erasmus
- Department of Pediatric Neurology, Donders Institute for Brain, Cognition and Behaviour, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jos M T Draaisma
- Department of Pediatrics, Radboud Institute for Health Sciences, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Nicol C Voermans
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
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Abstract
Traditional textbook physiology has ascribed unitary functions to hormones from the anterior and posterior pituitary gland, mainly in the regulation of effector hormone secretion from endocrine organs. However, the evolutionary biology of pituitary hormones and their receptors provides evidence for a broad range of functions in vertebrate physiology. Over the past decade, we and others have discovered that thyroid-stimulating hormone, follicle-stimulating hormone, adrenocorticotropic hormone, prolactin, oxytocin and arginine vasopressin act directly on somatic organs, including bone, adipose tissue and liver. New evidence also indicates that pituitary hormone receptors are expressed in brain regions, nuclei and subnuclei. These studies have prompted us to attribute the pathophysiology of certain human diseases, including osteoporosis, obesity and neurodegeneration, at least in part, to changes in pituitary hormone levels. This new information has identified actionable therapeutic targets for drug discovery.
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Affiliation(s)
- Mone Zaidi
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Tony Yuen
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Se-Min Kim
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Departments of Medicine and Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Branstetter RM, Islam RK, Toups CA, Parra AN, Lee Z, Ahmadzadeh S, Varrassi G, Shekoohi S, Kaye AD. Mechanisms and Treatment Options for Hyperthyroid-Induced Osteoporosis: A Narrative Review. Cureus 2023; 15:e48798. [PMID: 38098934 PMCID: PMC10720926 DOI: 10.7759/cureus.48798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 11/14/2023] [Indexed: 12/17/2023] Open
Abstract
Normal thyroid hormone levels are crucial for the homeostasis of many metabolic cycles and processes throughout the human body. Thyroid dysfunction, such as thyrotoxicosis, can result from many different etiologies, including Graves' disease (GD), toxic multinodular goiter (MNG), and toxic adenoma. These hyperthyroid disease states can cause devastating complications and disease, including the disruption of the bone remodeling cycle and skeletal development, which can result in osteoporosis. Osteoporosis is characterized by a decrease in bone mineral density and a propensity for fragility fractures. In addition to patients with overt hyperthyroidism, studies have provided evidence of other high-risk patient demographics, such as individuals with subclinical hyperthyroidism and postmenopausal women, who may be at an increased risk for the development of secondary osteoporosis. The treatment of patients with hyperthyroid-induced osteoporosis often requires a multifaceted management plan that may be unique to each patient's situation. Antithyroid therapy is often the first step in treating this disease and may include thioamide medications. Radioactive iodine-131 therapy (RAI) and the surgical removal of the thyroid gland may also be reasonable approaches for restoring normal thyroid function. Following thyrotoxicosis mitigation, antiresorptive drugs such as bisphosphonates, calcitonin, and selective estrogen receptor modulators (SERMs) may be used to counteract decreased bone mineral density (BMD). Additionally, the implementation of vitamin D, calcium supplements, and weight-bearing exercise may also reduce bone loss. While the effects of thyroid stimulating hormone (TSH) and triiodothyronine (T3) on bone remodeling have been studied in the past, more research is needed to identify unknown mechanisms and develop future improved treatments for this condition.
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Affiliation(s)
- Robert M Branstetter
- School of Medicine, Louisiana State University Health School of Medicine, New Orleans, USA
| | - Rahib K Islam
- School of Medicine, Louisiana State University Health School of Medicine, New Orleans, USA
| | - Collin A Toups
- School of Medicine, Louisiana State University Health School of Medicine, New Orleans, USA
| | - Amanda N Parra
- School of Medicine, Ross University School of Medicine, Miramar, USA
| | - Zachary Lee
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Shahab Ahmadzadeh
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | | | - Sahar Shekoohi
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Alan D Kaye
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
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Wu X, Zhai F, Chang A, Wei J, Guo Y, Zhang J. Association between sensitivity to thyroid hormone indices and osteoporosis in euthyroid patients with type 2 diabetes mellitus. Ther Adv Chronic Dis 2023; 14:20406223231189230. [PMID: 37538345 PMCID: PMC10395177 DOI: 10.1177/20406223231189230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 06/08/2023] [Indexed: 08/05/2023] Open
Abstract
Background Thyroid hormones are known to regulate bone metabolism and may influence bone mineral density (BMD), as well as the risk of osteoporosis (OP) and fractures in patients with type 2 diabetes mellitus (T2DM). Recently, sensitivity to thyroid hormone indices has been linked with T2DM and OP independently. However, the relationship between thyroid hormone sensitivity and OP in euthyroid T2DM patients has yet to be investigated. Objectives The aim of this study was to determine the association between sensitivity to thyroid hormone indices and the risk of OP in euthyroid patients with T2DM. Design This study employed a retrospective, cross-sectional design and utilized data acquired from the Cangzhou Central Hospital in China between 2019 and 2020. Methods We retrospectively analyzed the data of 433 patients with T2DM for anthropometric measurements, clinical laboratory test results, and BMD. The thyroid-stimulating hormone index, thyrotroph thyroxine resistance index, and thyroid feedback quantile-based index (TFQI) were calculated to determine thyroid hormone sensitivity. Finally, multivariable logistic regression, generalized additive models, and subgroup analysis were performed to detect the association between sensitivity to thyroid hormone indices and the risk of OP in these patients. Results We did not observe a statistically significant linear relationship between sensitivity to thyroid hormones indices and OP after covariate adjustment. However, a nonlinear relationship existed between TFQI and the prevalence of OP. The inflection point of the TFQI was at -0.29. The effect sizes (odds ratio) on the left and right of the inflection point were 0.07 [95% confidence interval (CI): 0.01-0.71; p = 0.024] and 2.78 (95% CI: 1.02-7.58; p = 0.046), respectively. This trend was consistent in older female patients with higher body mass index (BMI; 25-30 kg/m2). Conclusion An approximate U-shaped relationship was observed between sensitivity to thyroid hormone indices and OP risk in euthyroid patients with T2DM with variations in sex, age, and BMI. These findings provide a new perspective to elucidate the role of thyroid hormones in OP, specifically in patients with T2DM.
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Affiliation(s)
- Xuelun Wu
- Department of Endocrinology, Cangzhou Central Hospital, 16 Xinhua West Road, Cangzhou City 061000, Hebei Province, PR China
| | - Furui Zhai
- Gynecological clinic, Cangzhou Central Hospital, Cangzhou City, Hebei Province, PR China
| | - Ailing Chang
- Department of Endocrinology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, PR China
| | - Jing Wei
- Department of Endocrinology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, PR China
| | - Yanan Guo
- Department of Endocrinology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, PR China
| | - Jincheng Zhang
- Department of Endocrinology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, PR China
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Boro H, Malhotra R, Kubihal S, Khatiwada S, Dogra V, Mannar V, Ahirwar AK, Rastogi V. Bone microarchitecture and bone mineral density in Graves' disease. Osteoporos Sarcopenia 2023; 9:70-75. [PMID: 37496984 PMCID: PMC10366428 DOI: 10.1016/j.afos.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/20/2023] [Accepted: 05/19/2023] [Indexed: 07/28/2023] Open
Abstract
Objectives Graves' disease (GD) is the most common cause of thyrotoxicosis. There are many studies that have evaluated bone mineral density (BMD) in Graves' disease. However, the strength of a bone also depends on its microarchitecture which can be assessed by various techniques. Trabecular bone score (TBS) is a new method for assessing bone microarchitecture that is non-invasive and easily performed. Methods The present study was a cross-sectional study that involved 50 patients with active GD and 50 healthy controls. Both groups were subjected to an assessment of biochemical parameters followed by measurement of BMD and TBS on the same dual energy X-ray absorptiometry (DXA) machine. Results The mean age of patients with active GD (N = 50) was 31.9 ± 10.9 years while that of controls was 31.2 ± 4.9 years (P = 0.640). The female: male ratio was the same for both groups (F = 31, M = 19). The mean lumbar spine BMD, femoral neck BMD, total hip BMD, and distal radius BMD were significantly reduced in GD when compared to that in controls. The mean absolute lumbar spine TBS in GD was 1.263 ± 0.101 while that in controls was 1.368 ± 0.073 (P < 0.001). On multivariate regression analysis, the factors that predicted TBS were serum thyroxine (T4) and L1-L4 BMD. Conclusions Patients with Graves' disease had reduced bone density at all sites and degraded microarchitecture. Long-term studies are required to understand the pattern of recovery of bone microarchitecture after the restoration of euthyroidism.
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Affiliation(s)
- Hiya Boro
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Rakhi Malhotra
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Suraj Kubihal
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Saurav Khatiwada
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Vinay Dogra
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Velmurugan Mannar
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Ashok Kumar Ahirwar
- Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
| | - Vandana Rastogi
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
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Wu J, Huang H, Yu X. How does Hashimoto's thyroiditis affect bone metabolism? Rev Endocr Metab Disord 2023; 24:191-205. [PMID: 36509987 DOI: 10.1007/s11154-022-09778-x] [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] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
Bone marrow contains resident cellular components that are not only involved in bone maintenance but also regulate hematopoiesis and immune responses. The immune system and bone interact with each other, coined osteoimmunology. Hashimoto's thyroiditis (HT) is one of the most common chronic autoimmune diseases which is accompanied by lymphocytic infiltration. It shows elevating thyroid autoantibody levels at an early stage and progresses to thyroid dysfunction ultimately. Different effects exert on bone metabolism during different phases of HT. In this review, we summarized the mechanisms of the long-term effects of HT on bone and the relationship between thyroid autoimmunity and osteoimmunology. For patients with HT, the bone is affected not only by thyroid function and the value of TSH, but also by the setting of the autoimmune background. The autoimmune background implies a breakdown of the mechanisms that control self-reactive system, featuring abnormal immune activation and presence of autoantibodies. The etiology of thyroid autoimmunity and osteoimmunology is complex and involves a number of immune cells, cytokines and chemokines, which regulate the pathogenesis of HT and osteoporosis at the same time, and have potential to affect each other. In addition, vitamin D works as a potent immunomodulator to influence both thyroid immunity and osteoimmunology. We conclude that HT affects bone metabolism at least through endocrine and immune pathways.
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Affiliation(s)
- Jialu Wu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, 37 Guoxue Lane, 610041, Chengdu, P.R. China
| | - Hui Huang
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, 37 Guoxue Lane, 610041, Chengdu, P.R. China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, 37 Guoxue Lane, 610041, Chengdu, P.R. China.
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Zou Y, Li B, Wang X, Mao J, Zhang Y. The risk between thyrotropin suppression and bone mineral density in differentiated thyroid cancer. Medicine (Baltimore) 2022; 101:e31991. [PMID: 36482589 PMCID: PMC9726344 DOI: 10.1097/md.0000000000031991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The effect of thyroid stimulating endocrine (TSH) suppression medical aid on bone mineral density (BMD) of patients with differentiated thyroid carcinoma (DTC) or differentiated thyroid malignant neoplastic disease is still controversial. Our aim was to investigate the effect of TSH suppression therapy on BMD of patients with DTC. METHODS A total of 1651 DTC patients with TSH-suppression medical care were analyzed by RevMan 5.3 software (https://training.cochrane.org/online-learning/core-software/revman/revman-5-download) in the present study. The PubMed and Embase databases were consistently hunted for works revealed through July 29, 2022. RESULTS The results indicated that a significant association between femoral bone mineral density (FN-BMD) (P = .02) or lumbar spine bone mineral density (L-BMD) (P = .04) and DTC patients with TSH-suppression therapy. However, the total hip bone mineral density (TH-BMD) was not significantly related to DTC patients with TSH-suppression therapy (P = .11). For premenopausal women, it was shown that TH-BMD (P = .02) or L-BMD (P = .01) were closely related to DTC patients with TSH-suppression therapy. However, there was no relationship between FN-BMD and DTC patients with TSH-suppression therapy (P = .06). For postmenopausal women, TH-BMD was closely related to DTC patients with TSH-suppression therapy (P = .02). It was revealed that there was no significant difference between L-BMD (P = .16) or FN-BMD (P = .26) and DTC patients with TSH-suppression therapy. For men, there was no relationship between FN-BMD (P = .94) or L-BMD (P = .29) and DTC patients with TSH-suppression therapy. CONCLUSION Our systematic review has demonstrated that TSH inhibition treatment mainly influence the TH-BMD or L-BMD of the DTC patients who were premenopausal women; the TH-BMD of the DTC patients who were postmenopausal women. In addition, there was no influence on the FN-BMD or L-BMD of the DTC patients who were men.
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Affiliation(s)
- Yang Zou
- Department of Endocrinology, Jiangjin Center Hospital (Chongqing University Jiangjin Hospital), Chongqing, China
| | - Bin Li
- Department of Endocrinology, Jiangjin Center Hospital (Chongqing University Jiangjin Hospital), Chongqing, China
| | - Xiaodong Wang
- Department of Pharmacology, Chongqing Medical and Pharmaceutical College, Chongqing, China
| | - Jingxin Mao
- Department of Pharmacology, Chongqing Medical and Pharmaceutical College, Chongqing, China
- College of Pharmaceutical Sciences, Southwest University, Chongqing, China
- * Correspondence: Yanyan Zhang, Department of Endocrinology, Jiangjin Center Hospital (Chongqing University Jiangjin Hospital), Chongqing 402260, China (e-mail: ) and Jingxin Mao, Department of Pharmacology, Chongqing Medical and Pharmaceutical College, Chongqing 400030, China (e-mail: )
| | - Yanyan Zhang
- Department of Endocrinology, Jiangjin Center Hospital (Chongqing University Jiangjin Hospital), Chongqing, China
- * Correspondence: Yanyan Zhang, Department of Endocrinology, Jiangjin Center Hospital (Chongqing University Jiangjin Hospital), Chongqing 402260, China (e-mail: ) and Jingxin Mao, Department of Pharmacology, Chongqing Medical and Pharmaceutical College, Chongqing 400030, China (e-mail: )
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Daya NR, Fretz A, Martin SS, Lutsey PL, Echouffo-Tcheugui JB, Selvin E, Juraschek SP. Association Between Subclinical Thyroid Dysfunction and Fracture Risk. JAMA Netw Open 2022; 5:e2240823. [PMID: 36346629 PMCID: PMC9644261 DOI: 10.1001/jamanetworkopen.2022.40823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
IMPORTANCE Clinical hyperthyroidism accelerates bone resorption without compensatory bone formation, reducing bone density and increasing the risk of fracture. The association between subclinical hyperthyroidism and fracture risk is less clear. OBJECTIVE To investigate the association of endogenous subclinical thyroid dysfunction and fracture risk, independent of clinical confounders. DESIGN, SETTING, AND PARTICIPANTS This cohort study included 10 946 participants from the Atherosclerosis Risk in Communities Study, an ongoing prospective cohort study of community-dwelling individuals conducted from 1987-1989 through December 31, 2019, in Washington County, Maryland; Forsyth County, North Carolina; Jackson, Mississippi; and the suburbs of Minneapolis, Minnesota. Participants were not taking thyroid medications and had no history of fractures. EXPOSURES Thyrotropin and free thyroxine levels were measured at visit 2 (1990-1992). Subclinical hyperthyroidism was defined as a thyrotropin level lower than 0.56 mIU/L, subclinical hypothyroidism as a thyrotropin level higher than 5.1 mIU/L, and euthyroidism as a thyrotropin level of 0.56 to 5.1 mIU/L, with normal free thyroxine levels from 0.85 to 1.4 ng/dL. MAIN OUTCOMES AND MEASURES Incident fracture was ascertained using hospitalization discharge codes through 2019 and linkage to inpatient and outpatient Medicare claims through 2018. RESULTS Of 10 946 participants (54.3% women; mean [SD] age, 57 [5.7] years), 93.0% had euthyroidism, 2.6% had subclinical hyperthyroidism, and 4.4% had subclinical hypothyroidism. During a median follow-up of 21 years (IQR, 13.0-27.3 years), there were 3556 incident fractures (167.1 per 10 000 person-years). The adjusted hazard ratios of fracture were 1.34 (95% CI, 1.09-1.65) for those with subclinical hyperthyroidism and 0.90 (95% CI, 0.77-1.05) for those with subclinical hypothyroidism compared with individuals with euthyroidism. Among those with normal free thyroxine levels, thyrotropin levels in the lower-than-normal range were significantly associated with higher fracture-related hospitalization risk; fracture risk was greater among individuals with thyrotropin concentrations below 0.56 mIU/L. CONCLUSIONS AND RELEVANCE This community-based cohort study suggests that subclinical hyperthyroidism was an independent risk factor associated with fracture. The increased risk for fracture among individuals with a thyrotropin level lower than 0.56 mIU/L highlights a potential role for more aggressive screening and monitoring of patients with subclinical hyperthyroidism to prevent bone mineral disease.
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Affiliation(s)
- Natalie R. Daya
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Anna Fretz
- Department of Medicine, University of California, San Francisco Medical Center, San Francisco
| | - Seth S. Martin
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Division of Cardiology, Department of Medicine, Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Pamela L. Lutsey
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis
| | - Justin B. Echouffo-Tcheugui
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Elizabeth Selvin
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Stephen P. Juraschek
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
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Kim SM, Sultana F, Korkmaz F, Lizneva D, Yuen T, Zaidi M. Independent Skeletal Actions of Pituitary Hormones. Endocrinol Metab (Seoul) 2022; 37:719-731. [PMID: 36168775 PMCID: PMC9633224 DOI: 10.3803/enm.2022.1573] [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: 08/25/2022] [Accepted: 09/02/2022] [Indexed: 12/30/2022] Open
Abstract
Over the past years, pituitary hormones and their receptors have been shown to have non-traditional actions that allow them to bypass the hypothalamus-pituitary-effector glands axis. Bone cells-osteoblasts and osteoclasts-express receptors for growth hormone, follicle stimulating hormone (FSH), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), prolactin, oxytocin, and vasopressin. Independent skeletal actions of pituitary hormones on bone have been studied using genetically modified mice with haploinsufficiency and by activating or inactivating the receptors pharmacologically, without altering systemic effector hormone levels. On another front, the discovery of a TSH variant (TSH-βv) in immune cells in the bone marrow and skeletal action of FSHβ through tumor necrosis factor α provides new insights underscoring the integrated physiology of bone-immune-endocrine axis. Here we discuss the interaction of each pituitary hormone with bone and the potential it holds in understanding bone physiology and as a therapeutic target.
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Affiliation(s)
- Se-Min Kim
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Corresponding authors: Se-Min Kim. The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, PO Box 1055, New York, NY 10029, USA Tel: +1-212-241-8797, Fax: +1-212-426-8312 E-mail:
| | - Farhath Sultana
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Funda Korkmaz
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Daria Lizneva
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tony Yuen
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mone Zaidi
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Mone Zaidi. The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, PO Box 1055, New York, NY 10029, USA Tel: +1-212-241-8797, Fax: +1-212-426-8312, E-mail:
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13
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Chen Y, Zhang W, Chen C, Wang Y, Wang N, Lu Y. Thyroid and bone turnover markers in type 2 diabetes: results from the METAL study. Endocr Connect 2022; 11:EC-21-0484. [PMID: 35196256 PMCID: PMC9010813 DOI: 10.1530/ec-21-0484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 02/23/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVE We aimed to evaluate whether thyroid hormones, autoimmune and thyroid homeostasis status were related to bone turnover in type 2 diabetes. METHODS The data were obtained from a cross-sectional study, the METAL study. In this study, 4209 participants (2059 men and 2150 postmenopausal women) with type 2 diabetes were enrolled. Thyroid function, thyroid antibodies and three bone turnover markers (BTMs), including a large N-mid fragment of osteocalcin (N-MID osteocalcin), β-C-terminal cross-linked telopeptides of type I collagen (β-CTX) and procollagen type I N-terminal propeptide (P1NP), were measured. Thyroid homeostasis parameters, including the sum activity of step-up deiodinases (SPINA-GD), thyroid secretory capacity (SPINA-GT), Jostel's TSH index (TSHI) and the thyrotroph thyroid hormone resistance index (TTSI), were calculated. The associations of thyroid parameters with BTMs were analyzed using linear regression. RESULTS Free and total triiodothyronine were positively associated with N-MID osteocalcin and P1NP in both sexes and positively associated with β-CTX in postmenopausal women. Thyroid-stimulating hormone was negatively associated with β-CTX in postmenopausal women, and free thyroxine was negatively associated with N-MID osteocalcin and P1NP in men. SPINA-GD was positively associated with N-MID osteocalcin and P1NP in both sexes. There was a positive relationship of SPINA-GT with β-CTX, a negative relationship of TTSI with β-CTX, and a negative relationship of TSHI with β-CTX and P1NP in postmenopausal women. CONCLUSIONS Among men and postmenopausal women with type 2 diabetes, significant associations were observed between N-MID osteocalcin, β-CTX and P1NP with thyroid function and thyroid homeostasis. Further prospective studies are warranted to understand the causal relationship and underlying mechanism.
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Affiliation(s)
- Yi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
- Correspondence should be addressed to Y Chen or Y Lu: or
| | - Wen Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Chi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yuying Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
- Correspondence should be addressed to Y Chen or Y Lu: or
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Ran B, Wei F, Gong J, Xu H. Application and prospect of trabecular bone score in differentiated thyroid cancer patients receiving thyrotropin suppression therapy. Front Endocrinol (Lausanne) 2022; 13:1004962. [PMID: 36313757 PMCID: PMC9596913 DOI: 10.3389/fendo.2022.1004962] [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: 07/27/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
Thyroid-stimulating hormone (TSH) suppression therapy is one of the common treatments for most patients with differentiated thyroid cancer (DTC). Unfortunately, its detrimental effects on bone health are receiving increasing attention. It may increase the risk of osteoporosis and osteoporotic fractures. The trabecular bone score (TBS) is a relatively new gray-scale texture measurement parameter that reflects bone microarchitecture and bone strength and has been shown to independently predict fracture risk. We reviewed for the first time the scientific literature on the use of TBS in DTC patients on TSH suppression therapy and aim to analyze and compare the utility of TBS with bone mass strength (BMD) in the management of skeletal health and prediction of fracture risk. We screened a total of seven relevant publications, four of which were for postmenopausal female patients and three for all female patients. Overall, postmenopausal female patients with DTC had lower TBS and a significant reduction in TBS after receiving TSH suppression therapy, but their BMD did not appear to change significantly. In addition, TBS was also found to be an independent predictor of osteoporotic fracture risk in postmenopausal women with DTC receiving TSH suppression therapy. However, due to limitations in the number of studies and study populations, this evidence is not sufficient to fully demonstrate the adverse effects of TSH suppression therapy on patients' TBS or BMD and the efficacy of TBS, and subsequent larger and more case-cohort studies are needed to further investigate the relationship and application of TBS to TSH suppression therapy in terms of skeletal health impairment and fracture risk in DTC patients.
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Sheng N, Xing F, Wang J, Duan X, Xiang Z. T4 rather than TSH correlates with BMD among euthyroid adults. Front Endocrinol (Lausanne) 2022; 13:1039079. [PMID: 36699030 PMCID: PMC9868946 DOI: 10.3389/fendo.2022.1039079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/30/2022] [Indexed: 01/12/2023] Open
Abstract
PURPOSE The objective of this study was to evaluate the association between thyroid hormone and bone mineral density (BMD) among euthyroid adults. METHODS This cross-sectional study researched the information from the National Health and Nutrition Examination Survey 2007-2010. We included 3,759 euthyroid participants finally. We used multivariate linear regression models to evaluate the linear relationship between the thyroid hormone profile and BMD. Subgroup analyses stratified by gender and age were further performed. Moreover, the nonlinear relationship was characterized by fitted smoothing curves and generalized additive models, and logistic regression models were used to determine the association of thyroid-stimulating hormone (TSH) and thyroxine (T4) with previous fractures. RESULTS The weighted multivariable linear regression models showed no association between TSH and BMD. Free thyroxine (FT4), T4, free triiodothyronine (FT3), and total triiodothyronine (T3) were negatively associated with the total femur BMD and the total spine BMD after adjusting for all covariates. Subgroup analyses demonstrated that all groups had a negative association between T4 and BMD, even in patients with osteopenia/osteoporosis. The nonlinear relationship characterized by smooth curve fittings and generalized additive models suggested that an obvious U-shaped, an inverted U -shaped, and an L - shaped curve was exhibited between thyroid hormone and BMD in the different subgroups. In addition, normal high-level T4 was associated with an increased prevalence of previous fractures than normal low-level T4. CONCLUSIONS In this sample of euthyroid adults, T4 exhibits a negative correlation with BMD, regardless of age and gender, in subjects with either normal or lowered BMD. Moreover, high-normal FT4 was associated with an increased prevalence of previous fractures. TSH was not associated with variations of BMD and the fracture risk.
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Affiliation(s)
| | | | | | - Xin Duan
- *Correspondence: Xin Duan, ; Zhou Xiang,
| | - Zhou Xiang
- *Correspondence: Xin Duan, ; Zhou Xiang,
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Zhu S, Pang Y, Xu J, Chen X, Zhang C, Wu B, Gao J. Endocrine Regulation on Bone by Thyroid. Front Endocrinol (Lausanne) 2022; 13:873820. [PMID: 35464058 PMCID: PMC9020229 DOI: 10.3389/fendo.2022.873820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND As an endocrine organ, the thyroid acts on the entire body by secreting a series of hormones, and bone is one of the main target organs of the thyroid. SUMMARY This review highlights the roles of thyroid hormones and thyroid diseases in bone homeostasis. CONCLUSION Thyroid hormones play significant roles in the growth and development of bone, and imbalance of thyroid hormones can impair bone homeostasis.
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Affiliation(s)
- Siyuan Zhu
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yidan Pang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jun Xu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Xiaoyi Chen
- Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, China
| | - Changqing Zhang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- *Correspondence: Junjie Gao, ; Bo Wu, ; Changqing Zhang,
| | - Bo Wu
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- *Correspondence: Junjie Gao, ; Bo Wu, ; Changqing Zhang,
| | - Junjie Gao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, China
- *Correspondence: Junjie Gao, ; Bo Wu, ; Changqing Zhang,
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Kim SM, Ryu V, Miyashita S, Korkmaz F, Lizneva D, Gera S, Latif R, Davies TF, Iqbal J, Yuen T, Zaidi M. Thyrotropin, Hyperthyroidism, and Bone Mass. J Clin Endocrinol Metab 2021; 106:e4809-e4821. [PMID: 34318885 PMCID: PMC8864741 DOI: 10.1210/clinem/dgab548] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Thyrotropin (TSH), traditionally seen as a pituitary hormone that regulates thyroid glands, has additional roles in physiology including skeletal remodeling. Population-based observations in people with euthyroidism or subclinical hyperthyroidism indicated a negative association between bone mass and low-normal TSH. The findings of correlative studies were supported by small intervention trials using recombinant human TSH (rhTSH) injection, and genetic and case-based evidence. Genetically modified mouse models, which disrupt the reciprocal relationship between TSH and thyroid hormone, have allowed us to examine an independent role of TSH. Since the first description of osteoporotic phenotype in haploinsufficient Tshr +/- mice with normal thyroid hormone levels, the antiosteoclastic effect of TSH has been documented in both in vitro and in vivo studies. Further studies showed that increased osteoclastogenesis in Tshr-deficient mice was mediated by tumor necrosis factor α. Low TSH not only increased osteoclastogenesis, but also decreased osteoblastogenesis in bone marrow-derived primary osteoblast cultures. However, later in vivo studies using small and intermittent doses of rhTSH showed a proanabolic effect, which suggests that its action might be dose and frequency dependent. TSHR was shown to interact with insulin-like growth factor 1 receptor, and vascular endothelial growth factor and Wnt pathway might play a role in TSH's effect on osteoblasts. The expression and direct skeletal effect of a biologically active splice variant of the TSHβ subunit (TSHβv) in bone marrow-derived macrophage and other immune cells suggest a local skeletal effect of TSHR. Further studies of how locally secreted TSHβv and systemic TSHβ interact in skeletal remodeling through the endocrine, immune, and skeletal systems will help us better understand the hyperthyroidism-induced bone disease.
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Affiliation(s)
- Se-Min Kim
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Vitaly Ryu
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sari Miyashita
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Funda Korkmaz
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Daria Lizneva
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sakshi Gera
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Rauf Latif
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Terry F Davies
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jameel Iqbal
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Tony Yuen
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Mone Zaidi
- The Mount Sinai Bone Program, Departments of Pharmacological Sciences and of Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: The Mount Sinai Bone Program, Departments of Pharmacological Sciences and Medicine, and Center of Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, 1428 Madison Avenue, 4th Floor, Box 1055, New York, NY 10029, USA.
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Liu C, Pan J, Wen S, Nguyen T, Xu D, Wang C, Yuan X, Wen Z, Zhou L. Low TSH Levels Within Euthyroid Range Could Play a Negative Role on Bone Mineral Density in Postmenopausal Women with Type 2 Diabetes. Diabetes Metab Syndr Obes 2021; 14:2349-2355. [PMID: 34079313 PMCID: PMC8163625 DOI: 10.2147/dmso.s307633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/04/2021] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE We aimed to evaluate the relationship between thyroid-stimulating hormone (TSH) and bone mineral density (BMD) in euthyroid type 2 diabetes (T2D). METHODS This retrospective analysis enrolled 439 T2D patients with normal thyroid function, including 226 males and 213 females. All the female patients were postmenopausal. Serum glycosylated hemoglobin A1c (HbA1c), TSH, free triiodothyronine (FT3), and free thyroxine (FT4) concentrations were analyzed. BMD of the lumbar spine (L1-L4), femoral neck, and hip joint was determined using dual-energy X-ray absorptiometry. RESULTS The patients were grouped based on tri-sectional quantiles of the TSH levels: 0.55~1.70mIU/L (Group 1), 1.71~2.58mIU/L (Group 2), and 2.59~4.74mIU/L (Group 3). Our data showed that, in male patients, no difference in BMD was identified among groups. In postmenopausal women, unlike at the lumbar spine (P = 0.459), the mean BMD at the femoral neck (P = 0.014) and hip joint (P = 0.014) had a statistical difference among groups and increased with TSH level. In addition, our analysis demonstrated that TSH levels shown no correlation with BMD at all sites in males. However, in females, BMD at the femoral neck (r = 0.156, P = 0.023) and hip joint (r = 0.172, P = 0.012) had a positive correlation with TSH levels. After adjusting for age and BMI, multiple regression analysis showed that TSH levels influenced BMD at the femoral neck (β = 0.188, P = 0.001) and hip joint (β = 0.204, P = 0.001) in female patients. CONCLUSION In summary, our data demonstrates that low TSH levels are associated with decreased BMD at the femoral neck and hip joint in postmenopausal T2D women with euthyroidism.
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Affiliation(s)
- Congying Liu
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Junhong Pan
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Song Wen
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Thiquynhnga Nguyen
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Dongxiang Xu
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Chaoxun Wang
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Xinlu Yuan
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Zhongqiu Wen
- Department of Information Center, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
| | - Ligang Zhou
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People’s Republic of China
- Shanghai Key Laboratory of Vascular Lesions Regulation and Remodeling, Shanghai Pudong Hospital, Fudan University, Shanghai, 201399, People's Republic of China
- Correspondence: Ligang Zhou Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, 2800 Gongwei Road, Huinan Town, Pudong New Area, Shanghai, 201399, People’s Republic of ChinaTel +8613611927616 Email
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Zhu H, Zhang J, Wang J, Zhao X, Gu M. Association of subclinical thyroid dysfunction with bone mineral density and fracture: a meta-analysis of prospective cohort studies. Endocrine 2020; 67:685-698. [PMID: 31721088 DOI: 10.1007/s12020-019-02110-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/01/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE To comprehensively investigate the associations of subclinical thyroid dysfunction with BMD and fractures at various sites. METHODS Comprehensive electronic and manual searches of databases were systematically conducted to identify prospective cohort studies from the inception of the databases to May 2019. The summary results for fractures and BMDs at various sites were calculated by relative risks (RRs) and weighted mean differences (WMDs) with corresponding 95% confidence intervals (CIs) using the random-effects model. RESULTS Seventeen prospective cohorts from 24 studies were identified and 313,557 individuals were recruited in a final analysis. The summary RR indicated that subclinical hyperthyroidism was associated with an increased risk of any fracture (RR, 1.17; 95% CI, 1.08-1.26; P < 0.001), hip fracture (RR, 1.27; 95% CI, 1.09-1.48; P = 0.003), spine fracture (RR, 1.97; 95% CI, 1.31-2.97; P = 0.001), and non-spine fracture (RR, 1.19; 95% CI, 1.04-1.37; P = 0.014). However, there were no significant associations of subclinical hypothyroidism with the risk of any fractures (P = 0.166), hip fracture (P = 0.068), spine fracture (P = 0.818), and non-spine fracture (P = 0.277). Finally, subclinical hyperthyroidism was associated with lower distal forearm BMD in women, and ultradistal forearm BMD in both men and women, whereas subclinical hypothyroidism was associated with higher femur neck BMD in women. CONCLUSION Subclinical hyperthyroidism could induce additional risk on fractures at any, hip, spine, and non-spine, whereas subclinical hypothyroidism did not have any impact on fractures. Moreover, BMD at the lower distal and ultradistal forearms might be affected by subclinical hyperthyroidism, and higher femur neck BMD could be affected by subclinical hypothyroidism.
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Affiliation(s)
- Hongling Zhu
- Department of Endocrinology, Shanghai Pudong New Area Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Jichen Zhang
- Department of Endocrinology, Shanghai Pudong New Area Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Jingnan Wang
- Department of Endocrinology, Shanghai Pudong New Area Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Xuemei Zhao
- Department of Endocrinology, Shanghai Pudong New Area Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
| | - Mingjun Gu
- Department of Endocrinology, Shanghai Pudong New Area Gongli Hospital, Second Military Medical University, Shanghai, 200135, China.
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Ala M, Jafari RM, Dehpour AR. Diabetes Mellitus and Osteoporosis Correlation: Challenges and Hopes. Curr Diabetes Rev 2020; 16:984-1001. [PMID: 32208120 DOI: 10.2174/1573399816666200324152517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/02/2020] [Accepted: 02/24/2020] [Indexed: 01/14/2023]
Abstract
Diabetes and osteoporosis are two common diseases with different complications. Despite different therapeutic strategies, managing these diseases and reducing their burden have not been satisfactory, especially when they appear one after the other. In this review, we aimed to clarify the similarity, common etiology and possible common adjunctive therapies of these two major diseases and designate the known molecular pattern observed in them. Based on different experimental findings, we want to illuminate that interestingly similar pathways lead to diabetes and osteoporosis. Meanwhile, there are a few drugs involved in the treatment of both diseases, which most of the time act in the same line but sometimes with opposing results. Considering the correlation between diabetes and osteoporosis, more efficient management of both diseases, in conditions of concomitant incidence or cause and effect condition, is required.
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Affiliation(s)
- Moein Ala
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, 13145-784, Tehran, Iran
| | - Razieh Mohammad Jafari
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, 13145-784, Tehran, Iran
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21
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Kim EH, Jeon YK, Pak K, Kim IJ, Kim SJ, Shin S, Kim BH, Kim SS, Lee BJ, Lee JG, Goh TS, Kim K. Effects of Thyrotropin Suppression on Bone Health in Menopausal Women with Total Thyroidectomy. J Bone Metab 2019; 26:31-38. [PMID: 30899722 PMCID: PMC6416151 DOI: 10.11005/jbm.2019.26.1.31] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 01/28/2019] [Accepted: 02/04/2019] [Indexed: 11/17/2022] Open
Abstract
Background This study examined the change in the trabecular bone score (TBS), areal bone mineral density (aBMD), and osteoporosis in postmenopausal women who underwent thyrotropin (TSH)-suppressive therapy for treating papillary thyroid cancer after a total thyroidectomy procedure. Methods We evaluated 36 postmenopausal women who received a total thyroidectomy for papillary thyroid cancer and were undergoing TSH suppressive therapy with levothyroxine. Postmenopausal women (n=94) matched for age and body mass index were recruited as healthy controls. The aBMD and TBS of the lumbar spine were compared between dual energy X-ray absorptiometry (DXA) at baseline and at follow-up after an average of 4.92 years. Results There was no significant difference in the rate of diagnoses of osteoporosis, osteopenia, or normal bone status between the 2 groups during the baseline DXA evaluation. However, the TBS was significantly lower whereas aBMD did not show significant difference at the time of baseline DXA measurement (1st DXA, 1.343±0.098 vs. 1.372±0.06317, P<0.001; 2nd DXA, 1.342±0.095 vs. 1.370±0.062, P<0.001). The TBS and aBMD did not differ significantly between the initial and follow-up DXA images in both groups of TSH suppressive patients and controls. Conclusions The average value of TBS and aBMD did not significantly change during the follow-up period. The TSH suppressive therapy was revealed as not a significant factor for the progressive deterioration of bone status during long term follow-up.
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Affiliation(s)
- Eun Heui Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Yun Kyung Jeon
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - In-Joo Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Seong-Jang Kim
- Department of Nuclear Medicine and Research Institute for Convergence of Biomedical Science and Technology, Yangsan Pusan National University Hospital, Yangsan, Korea
| | - Seunghyeon Shin
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Bo Hyun Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Sang Soo Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Byung-Joo Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Jeong-Gyu Lee
- Department of Family Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Tae Sik Goh
- Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
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22
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Kim K, Kim IJ, Pak K, Kim SJ, Shin S, Kim BH, Kim SS, Lee BJ, Jeon YK. Evaluation of Bone Mineral Density Using DXA and cQCT in Postmenopausal Patients Under Thyrotropin Suppressive Therapy. J Clin Endocrinol Metab 2018; 103:4232-4240. [PMID: 29982711 DOI: 10.1210/jc.2017-02704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 06/15/2018] [Indexed: 02/13/2023]
Abstract
PURPOSE This study aimed to examine the discrepancy in osteoporosis diagnoses between central quantitative computed tomography (cQCT) and dual-energy X-ray absorptiometry (DXA) and evaluated correlations among volumetric bone mineral density (vBMD), areal bone mineral density (aBMD), and trabecular bone score(TBS) in postmenopausal women who were undergoing TSH suppressive therapy. METHODS We enrolled a total of 81 postmenopausal patients [median age: 58 years; interquartile range (IQR): 57 to 60 years] receiving TSH suppressive therapy with levothyroxine after undergoing total thyroidectomy for papillary thyroid cancer. Patients were diagnosed by their bone mineral density (BMD) T-score and categorized according to a vBMD threshold of 120 mg/cm3 for osteopenia and a threshold of 80 mg/cm3 for osteoporosis. RESULTS When DXA and cQCT were compared, the BMD evaluation results differed in 76% of patients (n = 62; P < 0.001), and the detection rate of osteoporosis was 30.9% for cQCT and 21.0% for DXA. Sixty-two patients had discordant results; in 46 of these patients (74%) whose DXA T-scores were normal, the diagnosis shifted to osteopenia (n = 35) and osteoporosis (n = 11) according to the vBMD on cQCT (P < 0.001), and their vBMD values were significantly correlated with TBS (r = 0.293; P = 0.008). However, aBMD was not significantly correlated with TBS (r = 0.080; P = 0.480). TBS was significantly lower in patients with osteopenia (median: 1.35; IQR: 1.18 to 1.47) and osteoporosis (median: 1.28; IQR: 1.07 to 1.47) than in those with a normal BMD value (median: 1.37; IQR: 1.25 to 1.49; P = 0.041) on cQCT. There was no significant difference in TBS according to DXA BMD status (P = 0.200). CONCLUSIONS DXA and cQCT yielded inconsistent results, and detection of osteopenia and osteoporosis was higher using cQCT. TBS showed a more significant correlation with vBMD than with aBMD.
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Affiliation(s)
- Keunyoung Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - In-Joo Kim
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Seong-Jang Kim
- Department of Nuclear Medicine and Research Institute for Convergence of Biomedical Science and Technology, Yangsan Pusan National University Hospital, Yangsan, Republic of Korea
| | - Senghyeon Shin
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Bo Hyun Kim
- Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Sang Soo Kim
- Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Byung-Joo Lee
- Department of Otorhinolaryngology ‒ Head and Neck Surgery, Pusan National University School of Medicine, Busan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Yun Kyung Jeon
- Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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23
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Veldscholte K, Barjaktarovic M, Trajanoska K, Jaddoe VWV, Visser TJ, de Rijke YB, Peeters RP, Rivadeneira F, Korevaar TIM. The Association of Thyroid Function With Bone Density During Childhood. J Clin Endocrinol Metab 2018; 103:4125-4134. [PMID: 30020476 DOI: 10.1210/jc.2018-00294] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 07/12/2018] [Indexed: 11/19/2022]
Abstract
CONTEXT Although the skeleton is a well-known thyroid hormone target organ, very little data are available on the association of thyroid function with bone outcomes during childhood. OBJECTIVE To study the association of thyroid function with bone mass during childhood. DESIGN, SETTING, AND PARTICIPANTS Population-based prospective cohort including 4204 children with TSH and free T4 (FT4) measured at the age of 6 years. MAIN OUTCOME MEASURES Bone density was assessed by a total body dual-energy X-ray absorptiometry scan at the median age of 6 years (95% range, 5.6 to 7.9) and at the age of 10 years (95% range, 9.0 to 10.9) in 4204 and 3404 participants, respectively. RESULTS There was an inverse association of TSH with bone mineral density (BMD) at the age of 6 (β -0.028 ± 0.011, P = 0.009) and with follow-up measurements at the age of 10 (β -0.027 ± 0.011, P = 0.014), but not with bone mineral content (BMC) at the age of 6 (β -0.028 ± 0.015, P = 0.06) or for follow-up measurements of BMC at the age of 10 (β -0.011 ± 0.015, P = 0.47). There was an inverse association of FT4 with BMD (β -0.016 ± 0.006, P = 0.014) and BMC (β -0.023 ± 0.009, P = 0.009) cross-sectionally, and also at the age of 10 years (BMD: β -0.018 ± 0.007, P = 0.007; BMC: β -0.021 ± 0.009, P = 0.020). CONCLUSION A higher FT4 concentration is associated with lower bone mass at the age of 6 and at the age of 10 years. These data provide insights into the effects of thyroid function on bone physiology during childhood.
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Affiliation(s)
- Karlien Veldscholte
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- The Generation R. Study Group, Erasmus Medical Center and Sophia Children's Hospital, GE Rotterdam, Netherlands
- Academic Center for Thyroid Diseases, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Mirjana Barjaktarovic
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- The Generation R. Study Group, Erasmus Medical Center and Sophia Children's Hospital, GE Rotterdam, Netherlands
- Academic Center for Thyroid Diseases, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Katerina Trajanoska
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- Department of Epidemiology, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Vincent W V Jaddoe
- The Generation R. Study Group, Erasmus Medical Center and Sophia Children's Hospital, GE Rotterdam, Netherlands
- Department of Epidemiology, Erasmus Medical Center, GE Rotterdam, Netherlands
- Department of Pediatrics, Erasmus Medical Center, Sophia Children's Hospital, GE Rotterdam, Netherlands
| | - Theo J Visser
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- Academic Center for Thyroid Diseases, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Yolanda B de Rijke
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- Department of Clinical Chemistry, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Robin P Peeters
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- The Generation R. Study Group, Erasmus Medical Center and Sophia Children's Hospital, GE Rotterdam, Netherlands
- Academic Center for Thyroid Diseases, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Fernando Rivadeneira
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- Department of Epidemiology, Erasmus Medical Center, GE Rotterdam, Netherlands
| | - Tim I M Korevaar
- Department of Internal Medicine, Erasmus Medical Center, GE Rotterdam, Netherlands
- The Generation R. Study Group, Erasmus Medical Center and Sophia Children's Hospital, GE Rotterdam, Netherlands
- Academic Center for Thyroid Diseases, Erasmus Medical Center, GE Rotterdam, Netherlands
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24
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Siru R, Alfonso H, Chubb SAP, Golledge J, Flicker L, Yeap BB. Subclinical thyroid dysfunction and circulating thyroid hormones are not associated with bone turnover markers or incident hip fracture in older men. Clin Endocrinol (Oxf) 2018; 89:93-99. [PMID: 29655173 DOI: 10.1111/cen.13615] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/05/2018] [Accepted: 04/02/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Overt thyroid dysfunction is a risk factor for osteoporosis and fractures. Subclinical hyperthyroidism has also been associated with fracture. It remains unclear whether variation in thyroid hormones within the euthyroid range modulates bone health, particularly among older men. We assessed whether thyroid stimulating hormone (TSH) and free thyroxine (FT4) are associated with bone turnover markers (BTMs) and predict hip fracture risk in community-dwelling older men without known thyroid disease. DESIGN Prospective cohort study. PATIENTS Four thousand two hundred forty-eight men aged 70-89 years. MEASUREMENTS Baseline blood samples were assayed for TSH, FT4, total osteocalcin (TOC), undercarboxylated osteocalcin (ucOC), N-terminal propeptide of type I collagen (P1NP) and collagen type I C-terminal cross-linked telopeptide (CTX). Incidence of hip fracture events was ascertained to 2012. Associations of TSH and FT4 with BTMs were analysed at baseline using Pearson correlation coefficients, and with incident hip fracture using Cox proportional hazards regression. RESULTS After excluding men with pre-existing thyroid or bone disease, there were 3, 338 men for analysis. Of these, 3, 117 were euthyroid, 135 had subclinical hypothyroidism, and 86 had subclinical hyperthyroidism. Men with subclinical thyroid disease were older, and those with subclinical hyperthyroidism had lower creatinine than the other groups. After multivariate analysis, there were no associations found between FT4, TSH or subclinical thyroid dysfunction and BTMs at baseline. Neither subclinical thyroid dysfunction, TSH nor FT4 were predictive of incident hip fracture in our study population. CONCLUSIONS In euthyroid older men, TSH and FT4 were not associated with BTMs or incident hip fracture. Our findings differ from those previously described in postmenopausal women.
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Affiliation(s)
- Ranita Siru
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, WA, Australia
- School of Medicine, University of Western Australia, Perth, WA, Australia
| | - Helman Alfonso
- School of Public Health, Curtin University, Perth, WA, Australia
| | - S A Paul Chubb
- PathWest Laboratory Medicine, Fiona Stanley Hospital, Perth, WA, Australia
| | - Jonathan Golledge
- Queensland Research Centre for Peripheral Vascular Disease, College of Medicine and Dentistry, James Cook University, Townsville, QLD, Australia
- Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, QLD, Australia
| | - Leon Flicker
- School of Medicine, University of Western Australia, Perth, WA, Australia
- Western Australian Centre for Health & Ageing, University of Western Australia, Perth, WA, Australia
| | - Bu B Yeap
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, WA, Australia
- School of Medicine, University of Western Australia, Perth, WA, Australia
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25
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Zaidi M, New MI, Blair HC, Zallone A, Baliram R, Davies TF, Cardozo C, Iqbal J, Sun L, Rosen CJ, Yuen T. Actions of pituitary hormones beyond traditional targets. J Endocrinol 2018; 237:R83-R98. [PMID: 29555849 PMCID: PMC5924585 DOI: 10.1530/joe-17-0680] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 03/19/2018] [Indexed: 01/14/2023]
Abstract
Studies over the past decade have challenged the long-held belief that pituitary hormones have singular functions in regulating specific target tissues, including master hormone secretion. Our discovery of the action of thyroid-stimulating hormone (TSH) on bone provided the first glimpse into the non-traditional functions of pituitary hormones. Here we discuss evolving experimental and clinical evidence that growth hormone (GH), follicle-stimulating hormone (FSH), adrenocorticotrophic hormone (ACTH), prolactin, oxytocin and arginine vasopressin (AVP) regulate bone and other target tissues, such as fat. Notably, genetic and pharmacologic FSH suppression increases bone mass and reduces body fat, laying the framework for targeting the FSH axis for treating obesity and osteoporosis simultaneously with a single agent. Certain 'pituitary' hormones, such as TSH and oxytocin, are also expressed in bone cells, providing local paracrine and autocrine networks for the regulation of bone mass. Overall, the continuing identification of new roles for pituitary hormones in biology provides an entirely new layer of physiologic circuitry, while unmasking new therapeutic targets.
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Affiliation(s)
- Mone Zaidi
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: Mone Zaidi, MD, PhD, The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, One Gustave L Levy Place, Box 1055, New York, NY 10029;
| | - Maria I. New
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Harry C. Blair
- The Pittsburgh VA Medical Center and Departments of Pathology and of Cell Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Alberta Zallone
- Department of Histology, University of Bari, 70121 Bari, Italy
| | - Ramkumarie Baliram
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Terry F. Davies
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Christopher Cardozo
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - James Iqbal
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Li Sun
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | | | - Tony Yuen
- The Mount Sinai Bone Program, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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26
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Yang R, Yao L, Fang Y, Sun J, Guo T, Yang K, Tian L. The relationship between subclinical thyroid dysfunction and the risk of fracture or low bone mineral density: a systematic review and meta-analysis of cohort studies. J Bone Miner Metab 2018; 36:209-220. [PMID: 28357593 DOI: 10.1007/s00774-017-0828-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 02/15/2017] [Indexed: 12/19/2022]
Abstract
Our aim was to assess the risk of fractures or low bone mineral density (BMD) associated with subclinical thyroid dysfunction among cohorts. We systematically searched Medline (via PubMed), EMBASE, Cochrane Library, Web of Science, CENTRAL and SinoMed up to 31 July 2016 to identify cohort studies which have analyzed associations between subclinical thyroid dysfunction and fracture or BMD. A total of 19 population-based cohorts including 79,368 participants with relationships between subclinical thyroid dysfunction and fractures or BMD were identified as eligible for this meta-analysis. Subclinical hypothyroidism was associated with relative risks (RRs) of 1.34 (95% confidence interval [CI] 1.14, 1.58; I 2 = 32%) for hip fracture, 1.27 (95% CI 1.02, 1.58; I 2 = 51.9%) for any location of fracture, and 1.25 (95% CI 1.04, 1.50) for forearm fracture. Subclinical hyperthyroidism was associated with RRs of 1.71 (95% CI 1.06, 2.76; I 2 = 0.0%) for spine fracture, 1.20 (95% CI 1.03, 1.39; I 2 = 0.0%) for non-spine fracture, 1.44 (95% CI 1.21, 1.71; I 2 = 0.0%) for hip fracture, and 1.38 (95% CI 1.21, 1.58; I 2 = 0.0%) for any location of fracture. Subgroup analysis was conducted according to whether thyroid/anti-thyroid drug users were excluded or not and the results were similar. The change in BMD at the hip (weighted mean difference [WMD] = -0.060, 95% CI -0.116, -0.004; I 2 = 0.0%) and femoral neck (WMD = -0.046, 95% CI -0.077, -0.015; I 2 = 0.0%) was significantly decreased in the subclinical hyperthyroidism group compared with the euthyroidism groups in females. We failed to find any associations between the change in BMD and subclinical hypothyroidism. The overall quality of evidence was low in all outcomes. Subclinical hyperthyroidism and subclinical hypothyroidism were associated with an increased risk of fractures. Although subclinical hyperthyroidism was related to reduced BMD, no evidence could prove a definite association between subclinical hypothyroidism and the risk of low BMD.
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Affiliation(s)
- Ruifei Yang
- Department of Endocrinology, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
- Institution of Clinical Research and Evidence Based Medicine, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
| | - Liang Yao
- Institution of Clinical Research and Evidence Based Medicine, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
| | - Yuan Fang
- Department of Endocrinology, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
- Institution of Clinical Research and Evidence Based Medicine, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
| | - Jing Sun
- Department of Endocrinology, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
- Institution of Clinical Research and Evidence Based Medicine, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
| | - Tiankang Guo
- Department of General Surgery, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China
| | - Kehu Yang
- Evidence Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000, People's Republic of China.
| | - Limin Tian
- Department of Endocrinology, The Gansu Provincial Hospital, Donggang West Road, Lanzhou, 730000, Gansu, People's Republic of China.
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27
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Abstract
Thyroid hormones are essential for skeletal development and are important regulators of bone maintenance in adults. Childhood hypothyroidism causes delayed skeletal development, retarded linear growth and impaired bone mineral accrual. Epiphyseal dysgenesis is evidenced by classic features of stippled epiphyses on X-ray. In severe cases, post-natal growth arrest results in a complex skeletal dysplasia. Thyroid hormone replacement stimulates catch-up growth and bone maturation, but recovery may be incomplete dependent on the duration and severity of hypothyroidism prior to treatment. A severe phenotype characteristic of hypothyroidism occurs in children with resistance to thyroid hormone due to mutations affecting THRA encoding thyroid hormone receptor α (TRα). Discovery of this rare condition recapitulated animal studies demonstrating that TRα mediates thyroid hormone action in the skeleton. In adults, thyrotoxicosis is well known to cause severe osteoporosis and fracture, but cases are rare because of prompt diagnosis and treatment. Recent data, however, indicate that subclinical hyperthyroidism is associated with low bone mineral density (BMD) and an increased risk of fracture. Population studies have also shown that variation in thyroid status within the reference range in post-menopausal women is associated with altered BMD and fracture risk. Thus, thyroid status at the upper end of the euthyroid reference range is associated with low BMD and increased risk of osteoporotic fragility fracture. Overall, extensive data demonstrate that euthyroid status is required for normal post-natal growth and bone mineral accrual, and is fundamental for maintenance of adult bone structure and strength.
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Affiliation(s)
- G. R. Williams
- Molecular Endocrinology Laboratory, Department of Medicine, Imperial College London, Hammersmith Campus, Du Cane Road, 10N5 Commonwealth Building, London, W12 0NN UK
| | - J. H. D. Bassett
- Molecular Endocrinology Laboratory, Department of Medicine, Imperial College London, Hammersmith Campus, Du Cane Road, 10N6 Commonwealth Building, London, W12 0NN UK
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Hanusch BC, Tuck SP, McNally RJQ, Wu JJ, Prediger M, Walker J, Tang J, Piec I, Fraser WD, Datta HK, Francis RM. Does regional loss of bone density explain low trauma distal forearm fractures in men (the Mr F study)? Osteoporos Int 2017; 28:2877-2886. [PMID: 28685278 DOI: 10.1007/s00198-017-4122-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 06/08/2017] [Indexed: 01/02/2023]
Abstract
UNLABELLED The pathogenesis of low trauma wrist fractures in men is not fully understood. This study found that these men have lower bone mineral density at the forearm itself, as well as the hip and spine, and has shown that forearm bone mineral density is the best predictor of wrist fracture. INTRODUCTION Men with distal forearm fractures have reduced bone density at the lumbar spine and hip sites, an increased risk of osteoporosis and a higher incidence of further fractures. The aim of this case-control study was to investigate whether or not there is a regional loss of bone mineral density (BMD) at the forearm between men with and without distal forearm fractures. METHODS Sixty-one men with low trauma distal forearm fracture and 59 age-matched bone healthy control subjects were recruited. All subjects underwent a DXA scan of forearm, hip and spine, biochemical investigations, health questionnaires, SF-36v2 and Fracture Risk Assessment Tool (FRAX). The non-fractured arm was investigated in subjects with fracture and both forearms in control subjects. RESULTS BMD was significantly lower at the ultradistal forearm in men with fracture compared to control subjects, in both the dominant (mean (SD) 0.386 g/cm2 (0.049) versus 0.436 g/cm2 (0.054), p < 0.001) and non-dominant arm (mean (SD) 0.387 g/cm2 (0.060) versus 0.432 g/cm2 (0.061), p = 0.001). Fracture subjects also had a significantly lower BMD at hip and spine sites compared with control subjects. Logistic regression analysis showed that the best predictor of forearm fracture was ultradistal forearm BMD (OR = 0.871 (0.805-0.943), p = 0.001), with the likelihood of fracture decreasing by 12.9% for every 0.01 g/cm2 increase in ultradistal forearm BMD. CONCLUSIONS Men with low trauma distal forearm fracture have significantly lower regional BMD at the ultradistal forearm, which contributes to an increased forearm fracture risk. They also have generalised reduction in BMD, so that low trauma forearm fractures in men should be considered as indicator fractures for osteoporosis.
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Affiliation(s)
- B C Hanusch
- The James Cook University Hospital, Marton Road, Middlesbrough, TS4 3BW, UK.
| | - S P Tuck
- The James Cook University Hospital, Marton Road, Middlesbrough, TS4 3BW, UK
- Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - R J Q McNally
- Institute of Health and Society, Newcastle University, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK
| | - J J Wu
- Biophysical Sciences Institute and School of Engineering and Computing Sciences, Durham University, Lower Mountjoy, South Road, Durham, DH1 3LE, UK
| | - M Prediger
- Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - J Walker
- The James Cook University Hospital, Marton Road, Middlesbrough, TS4 3BW, UK
| | - J Tang
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - I Piec
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - W D Fraser
- Bioanalytical Facility, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - H K Datta
- The James Cook University Hospital, Marton Road, Middlesbrough, TS4 3BW, UK
- Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - R M Francis
- Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
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Abstract
Thyroid disease, increasingly common among the general population, is also rising among the elderly, which, given that the global population is aging, constitutes a serious public health issue that needs to be urgently addressed. The most common thyroid disease in younger and older individuals alike is hypothyroidism, including subclinical (SCH) and overt disease. Since TSH tends to increase with age due to intrinsic changes of thyroid metabolism and the gradual resetting of the hypothalamic-pituitary-thyroid axis, the diagnosis of "true" hypothyroidism is challenging, another difficulty being distinguishing disease-specific from aging-associated clinical symptoms. Hypothyroidism in the elderly may cause or exacerbate macrocytic anemia, hypercholesterolemia and kidney dysfunction, therefore careful clinical and biochemical control is necessary. Meanwhile, as an increase of TSH in the old and very old has been associated with longevity, a resetting of the TSH normal range according to age is strongly required before any diagnosis is made and treatment is implemented. Levothyroxine, which remains the treatment of choice, should be initiated in the old at TSH>10 mIU/l, starting with 25 μg/daily followed by cautious upward titration. Recent data (the TRUST study) revealed that treatment of SCH in the elderly does not improve hypothyroid symptoms and the tiredness score when compared with a placebo group. Hyperthyroidism is associated with increased mortality in the aged, this dependent upon type and adequacy of treatment. Treatment should be seriously considered in older patients who have endogenous subclinical hyperthyroidism with a TSH between 0.1 and 0.4 mIU/L, with regular monitoring being strongly advised.
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Affiliation(s)
- Leonidas H Duntas
- Unit of Endocrinology, Diabetes and Metabolism, Evgenideion Hospital, University of Athens , Athens, Greece
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30
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Sefati N, Norouzian M, Abbaszadeh HA, Abdollahifar MA, Amini A, Bagheri M, Aryan A, Fadaei Fathabady F. Effects of Bone Marrow Mesenchymal Stem Cells-Conditioned Medium on Tibial Partial Osteotomy Model of Fracture Healing in Hypothyroidism Rats. IRANIAN BIOMEDICAL JOURNAL 2017; 22:90-8. [PMID: 28755654 PMCID: PMC5786663 DOI: 10.22034/ibj.22.2.90] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background Hypothyroidism is associated with dysfunction of the bone turnover with reduced osteoblastic bone formation and osteoclastic bone resorption. Mesenchyme stem cells (MSCs) secrete various factors and cytokines that may stimulate bone regeneration. The aim of this study was to determine the effects of MSCs-conditioned medium (CM) in hypothyroidism male rats after inducing bone defect. Methods : In this study, 24 male rats were randomly assigned to three groups: (I) hypothyroidism+bone defect (HYPO), (II) hypothyroidism+bone defect+CM (HYPO+CM), and (III) no hypothyroidism+bone defect (control). Four weeks after surgery, the right tibia was removed, and immediately, biomechanical and histological examinations were performed. Results The results showed a significant reduction in bending stiffness (32.64±3.99), maximum force (14.63±1.89), high stress load (7.59±2.31), and energy absorption (12.68±2.12) at the osteotomy site in hypothyroidism rats in comparison to the control and hypothyroidism+condition medium groups (P<0.05). There was also a significant decrease in the trabecular bone volume (3.86±3.88) and the number of osteocytes (5800±859.8) at the osteotomy site in hypothyroidism rats compared to the control and hypothyroidism+condition medium groups (P<0.01 and P<0.02, respectively). Conclusion The present study suggests that the use of the CM can improve the fracture regeneration and accelerates bone healing at the osteotomy site in hypothyroidism rats.
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Affiliation(s)
- Niloofar Sefati
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Norouzian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hojjat-Allah Abbaszadeh
- Hearing Disorders Research Center and Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Bagheri
- Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arefeh Aryan
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Fadaei Fathabady
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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31
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Carlé A, Andersen SL, Boelaert K, Laurberg P. MANAGEMENT OF ENDOCRINE DISEASE: Subclinical thyrotoxicosis: prevalence, causes and choice of therapy. Eur J Endocrinol 2017; 176:R325-R337. [PMID: 28274949 DOI: 10.1530/eje-16-0276] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 12/23/2016] [Accepted: 03/08/2017] [Indexed: 12/25/2022]
Abstract
Subclinical thyrotoxicosis is a condition affecting up to 10% of the population in some studies. We have reviewed literature and identified studies describing prevalences, causes and outcomes of this condition. Treatment should be considered in all subjects if this biochemical abnormality is persistent, especially in case of symptoms of thyrotoxicosis or in the presence of any complication. In particular, treatment should be offered in those subclinically thyrotoxic patients with a sustained serum TSH below 0.1 U/L. However it is important to recognise that there are no large controlled intervention studies in the field and thus there is no high quality evidence to guide treatment recommendations. In particular, there is no evidence for therapy and there is weak evidence of harm from thyrotoxicosis if serum TSH is in the 0.1-0.4 IU/L range. In this review, we describe the different causes of subclinical thyrotoxicosis, and how treatment should be tailored to the specific cause. We advocate radioactive iodine treatment to be the first-line treatment in majority of patients suffering from subclinical thyrotoxicosis due to multinodular toxic goitre and solitary toxic adenoma, but we do generally not recommend it as the first-line treatment in patients suffering from subclinical Graves' hyperthyroidism. Such patients may benefit mostly from antithyroid drug therapy. Subclinical thyrotoxicosis in early pregnancy should in general be observed, not treated. Moreover, we advocate a general restriction of therapy in cases where no specific cause for the presumed thyroid hyperactivity has been proven.
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Affiliation(s)
| | - Stine Linding Andersen
- Department of Endocrinology
- Department of Clinical BiochemistryAalborg University Hospital, Aalborg, Denmark
| | - Kristien Boelaert
- Institute of Metabolism and Systems ResearchSchool of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Peter Laurberg
- Department of Endocrinology
- Department of Clinical MedicineAalborg University, Aalborg, Denmark
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32
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Downey CL, Young A, Burton EF, Graham SM, Macfarlane RJ, Tsapakis EM, Tsiridis E. Dementia and osteoporosis in a geriatric population: Is there a common link? World J Orthop 2017; 8:412-423. [PMID: 28567345 PMCID: PMC5434348 DOI: 10.5312/wjo.v8.i5.412] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/28/2017] [Accepted: 03/02/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To determine the existence of a common pathological link between dementia and osteoporosis through reviewing the current evidence base.
METHODS This paper reviews the current literature on osteoporosis and dementia in order to ascertain evidence of a common predisposing aetiology. A literature search of Ovid MED-LINE (1950 to June 2016) was conducted. The keywords “osteoporosis”, “osteoporotic fracture”, “dementia” and “Alzheimer’s disease” (AD) were used to determine the theoretical links with the most significant evidence base behind them. The key links were found to be vitamins D and K, calcium, thyroid disease, statins, alcohol and sex steroids. These subjects were then searched in combination with the previous terms and the resulting papers manually examined. Theoretical, in vitro and in vivo research were all used to inform this review which focuses on the most well developed theoretical common causes for dementia (predominantly Alzheimer’s type) and osteoporosis.
RESULTS Dementia and osteoporosis are multifaceted disease processes with similar epidemiology and a marked increase in prevalence in elderly populations. The existence of a common link between the two has been suggested despite a lack of clear pathological overlap in our current understanding. Research to date has tended to be fragmented and relatively weak in nature with multiple confounding factors reflecting the difficulties of in vivo experimentation in the population of interest. Despite exploration of various possible mechanisms in search for a link between the two pathologies, this paper found that it is possible that these associations are coincidental due to the nature of the evidence available. One finding in this review is that prior investigation into common aetiologies has found raised amyloid beta peptide levels in osteoporotic bone tissue, with a hypothesis that amyloid beta disorders are systemic disorders resulting in differing tissue manifestations. However, our findings were that the most compelling evidence of a common yet independent aetiology lies in the APOE4 allele, which is a well-established risk for AD but also carries an independent association with fracture risk. The mechanism behind this is thought to be the reduced plasma vitamin K levels in individuals exhibiting the APOE4 allele which may be amplified by the nutritional deficiencies associated with dementia, which are known to include vitamins K and D. The vitamin theory postulates that malnutrition and reduced exposure to sunlight in patients with AD leads to vitamin deficiencies.
CONCLUSION Robust evidence remains to be produced regarding potential links and regarding the exact aetiology of these diseases and remains relevant given the burden of dementia and osteoporosis in our ageing population. Future research into amyloid beta, APOE4 and vitamins K and D as the most promising aetiological links should be welcomed.
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33
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Wu K, Zhao M, Ma C, Zhang H, Liu X, Zhou L, Zhao J, Gao L, Wang D. Thyrotropin Alters T Cell Development in the Thymus in Subclinical Hypothyroidism Mouse Model. Scand J Immunol 2017; 85:35-42. [PMID: 27864993 DOI: 10.1111/sji.12507] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 11/11/2016] [Indexed: 02/06/2023]
Abstract
Subclinical hypothyroidism (SCH) is highly prevalent in the general population and is associated with potential deleterious effects. Although developing T cells express thyroid-stimulating hormone receptor (TSH-R), the changes of T cell development in thymus in SCH have not been fully clarified. SCH mouse model, which is characterized by elevated serum TSH but similar thyroid hormone levels, was used to study the role of TSH in T cell development. Thymus weight of SCH mice increased 18% compared with controls. Importantly, the frequencies of CD4+ and CD8+ single-positive (SP) thymocytes increased 38% and 44%, respectively. We demonstrated that TSH protected thymocytes from apoptosis as evidenced by a significant decrease of Annexin V-positive thymocytes in SCH mice. Further analysis showed that extracellular-regulated kinases (ERK) 1/2 in thymus were activated in SCH mice. With analysis of T cell receptor excision circles (TREC), we found that TSH increased recent thymic emigrants (RTE) in spleen tissue in SCH mice. Thus, these results suggest that TSH promoted T cell development and enhanced the thymic recent output in SCH mice, possibly by suppression of apoptosis of thymocytes, indicating that modification of the ERK signalling pathways.
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Affiliation(s)
- K Wu
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China.,Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - M Zhao
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China.,Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - C Ma
- Scientific Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - H Zhang
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China.,Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - X Liu
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China.,Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - L Zhou
- Department of Endocrinology and Metabolism, The Second Hospital of Shandong University, Jinan, Shandong, China
| | - J Zhao
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China.,Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
| | - L Gao
- Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China.,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China.,Scientific Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - D Wang
- Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
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Zaidi M, Sun L, Liu P, Davies TF, New M, Zallone A, Yuen T. Pituitary-bone connection in skeletal regulation. Horm Mol Biol Clin Investig 2017; 28:85-94. [PMID: 27508964 DOI: 10.1515/hmbci-2016-0015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 07/11/2016] [Indexed: 11/15/2022]
Abstract
Pituitary hormones have traditionally been thought to exert specific, but limited function on target tissues. More recently, the discovery of these hormones and their receptors in organs such as the skeleton suggests that pituitary hormones have more ubiquitous functions. Here, we discuss the interaction of growth hormone (GH), follicle stimulating hormone (FSH), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), prolactin, oxytocin and arginine vasopressin (AVP) with bone. The direct skeletal action of pituitary hormones therefore provides new insights and therapeutic opportunities for metabolic bone diseases, prominently osteoporosis.
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35
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Martinaityte I, Jorde R, Emaus N, Eggen AE, Joakimsen RM, Kamycheva E. Bone mineral density is associated with vitamin D related rs6013897 and estrogen receptor polymorphism rs4870044: The Tromsø study. PLoS One 2017; 12:e0173045. [PMID: 28253304 PMCID: PMC5333870 DOI: 10.1371/journal.pone.0173045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 02/14/2017] [Indexed: 12/19/2022] Open
Abstract
Background Bone mineral density (BMD) is determined by bone remodeling processes regulated by endocrine, autocrine and genetic mechanisms. Thus, some studies have reported that BMD is associated with single nucleotide polymorphisms (SNPs) associated with vitamin D receptor (VDR), serum 25(OH)D levels and estrogen receptor 1 (ESR1), but without consensus. Therefore, we aimed to map and compare the risk genotypes for forearm and total hip low BMD. Methods and findings Data were derived from a population-based study in northern Norway; the Tromsø Study. Distal forearm BMD was measured with a single x-ray absorptiometric device, while total hip BMD was measured with a dual-energy x-ray absorptiometric device. There were 7,317 and 4,082 successful analyses of distal forearm and total hip BMD, respectively, and at least one SNP of interest. We evaluated plausible BMD modulating factors and associations of BMD and SNPs related to vitamin D metabolism (FokI, Cdx2, BsmI, rs2298850, rs10741657, rs3794060, rs6013897), ApaI-BsmI-TaqI haplotypes and ESR1 SNP rs4870044. Results Age, BMI, physical activity and smoking were significantly associated with BMD. In a linear regression model with adjustment for age and gender and with the major homozygote as reference, rs6013897 had a standardized beta coefficient (β) of –0.031 (P = 0.024) for total hip BMD. β for ESR1 SNP rs4870044 was –0.016 (P = 0.036) for forearm BMD and –0.034 (P = 0.015) for total hip BMD. The other SNPs nor serum 25(OH)D were significantly associated with BMD. Conclusions Both forearm and total hip BMD were associated with ESR1 SNP rs4870044. Of the vitamin D–related genes, only CYP24A1 gene rs6013897 was associated with total hip BMD, but the association was weak and needs confirmation in other studies. Serum 25(OH)D was not associated with BMD in our population, probably due to the generally sufficient vitamin D levels in the population.
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Affiliation(s)
- Ieva Martinaityte
- Tromsø Endocrine Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
- * E-mail:
| | - Rolf Jorde
- Tromsø Endocrine Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Nina Emaus
- Department of Health and Care Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Anne Elise Eggen
- Epidemiology of chronic diseases research group, Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Ragnar Martin Joakimsen
- Tromsø Endocrine Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Elena Kamycheva
- Tromsø Endocrine Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
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36
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Dutta D, Dharmshaktu P, Aggarwal A, Gaurav K, Bansal R, Devru N, Garga UC, Kulshreshtha B. Severity and pattern of bone mineral loss in endocrine causes of osteoporosis as compared to age-related bone mineral loss. J Postgrad Med 2016; 62:162-9. [PMID: 27241810 PMCID: PMC4970342 DOI: 10.4103/0022-3859.183170] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Background: Data are scant on bone health in endocrinopathies from India. This study evaluated bone mineral density (BMD) loss in endocrinopathies [Graves’ disease (GD), type 1 diabetes mellitus (T1DM), hypogonadotrophic hypogonadism (HypoH), hypergonadotropic hypogonadism (HyperH), hypopituitarism, primary hyperparathyroidism (PHPT)] as compared to age-related BMD loss [postmenopausal osteoporosis (PMO), andropause]. Materials and Methods: Retrospective audit of records of patients >30 years age attending a bone clinic from August 2014 to January 2016 was done. Results: Five-hundred and seven records were screened, out of which 420 (females:male = 294:126) were analyzed. A significantly higher occurrence of vitamin D deficiency and insufficiency was noted in T1DM (89.09%), HyperH (85%), and HypoH (79.59%) compared to age-related BMD loss (60.02%; P < 0.001). The occurrence of osteoporosis among females and males was 55.41% and 53.97%, respectively, and of osteopenia among females and males was 28.91% and 32.54%, respectively. In females, osteoporosis was significantly higher in T1DM (92%), HyperH (85%), and HypoH (59.26%) compared to PMO (49.34%; P < 0.001). Z score at LS, TF, NOF, and greater trochanter (GT) was consistently lowest in T1DM women. Among men, osteoporosis was significantly higher in T1DM (76.67%) and HypoH (54.55%) compared to andropause (45.45%; P = 0.001). Z score at LS, TF, NOF, GT, and TR was consistently lowest in T1DM men. In GD, the burden of osteoporosis was similar to PMO and andropause. BMD difference among the study groups was not significantly different after adjusting for body mass index (BMI) and vitamin D. Conclusion: Low bone mass is extremely common in endocrinopathies, warranting routine screening and intervention. Concomitant vitamin D deficiency compounds the problem. Calcium and vitamin D supplementations may improve bone health in this setting.
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Affiliation(s)
- D Dutta
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - P Dharmshaktu
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - A Aggarwal
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - K Gaurav
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - R Bansal
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - N Devru
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - U C Garga
- Department of Radiology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
| | - B Kulshreshtha
- Department of Endocrinology, Post-graduate Institute of Medical Education and Research (PGIMER) and Dr. Ram Manohar Lohia (RML) Hospital, New Delhi, India
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37
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Baliram R, Latif R, Morshed SA, Zaidi M, Davies TF. T3 Regulates a Human Macrophage-Derived TSH-β Splice Variant: Implications for Human Bone Biology. Endocrinology 2016; 157:3658-67. [PMID: 27300765 PMCID: PMC5007892 DOI: 10.1210/en.2015-1974] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
TSH and thyroid hormones (T3 and T4) are intimately involved in bone biology. We have previously reported the presence of a murine TSH-β splice variant (TSH-βv) expressed specifically in bone marrow-derived macrophages and that exerted an osteoprotective effect by inducing osteoblastogenesis. To extend this observation and its relevance to human bone biology, we set out to identify and characterize a TSH-β variant in human macrophages. Real-time PCR analyses using human TSH-β-specific primers identified a 364-bp product in macrophages, bone marrow, and peripheral blood mononuclear cells that was sequence verified and was homologous to a human TSH-βv previously reported. We then examined TSH-βv regulation using the THP-1 human monocyte cell line matured into macrophages. After 4 days, 46.1% of the THP-1 cells expressed the macrophage markers CD-14 and macrophage colony-stimulating factor and exhibited typical morphological characteristics of macrophages. Real-time PCR analyses of these cells treated in a dose-dependent manner with T3 showed a 14-fold induction of human TSH-βv mRNA and variant protein. Furthermore, these human TSH-βv-positive cells, induced by T3 exposure, had categorized into both M1 and M2 macrophage phenotypes as evidenced by the expression of macrophage colony-stimulating factor for M1 and CCL-22 for M2. These data indicate that in hyperthyroidism, bone marrow resident macrophages have the potential to exert enhanced osteoprotective effects by oversecreting human TSH-βv, which may exert its local osteoprotective role via osteoblast and osteoclast TSH receptors.
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Affiliation(s)
- R Baliram
- Thyroid Research Unit (R.B., R.L., S.A.M., T.F.D.) and Mt Sinai Bone Program (R.B., R.L., M.Z., T.F.D.), Icahn School of Medicine at Mt Sinai, Mt Sinai Beth Israel Medical Center, New York, New York 10029; and James J. Peters Veterans Affairs Medical Center, New York, New York 10468
| | - R Latif
- Thyroid Research Unit (R.B., R.L., S.A.M., T.F.D.) and Mt Sinai Bone Program (R.B., R.L., M.Z., T.F.D.), Icahn School of Medicine at Mt Sinai, Mt Sinai Beth Israel Medical Center, New York, New York 10029; and James J. Peters Veterans Affairs Medical Center, New York, New York 10468
| | - S A Morshed
- Thyroid Research Unit (R.B., R.L., S.A.M., T.F.D.) and Mt Sinai Bone Program (R.B., R.L., M.Z., T.F.D.), Icahn School of Medicine at Mt Sinai, Mt Sinai Beth Israel Medical Center, New York, New York 10029; and James J. Peters Veterans Affairs Medical Center, New York, New York 10468
| | - M Zaidi
- Thyroid Research Unit (R.B., R.L., S.A.M., T.F.D.) and Mt Sinai Bone Program (R.B., R.L., M.Z., T.F.D.), Icahn School of Medicine at Mt Sinai, Mt Sinai Beth Israel Medical Center, New York, New York 10029; and James J. Peters Veterans Affairs Medical Center, New York, New York 10468
| | - T F Davies
- Thyroid Research Unit (R.B., R.L., S.A.M., T.F.D.) and Mt Sinai Bone Program (R.B., R.L., M.Z., T.F.D.), Icahn School of Medicine at Mt Sinai, Mt Sinai Beth Israel Medical Center, New York, New York 10029; and James J. Peters Veterans Affairs Medical Center, New York, New York 10468
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Chin KY, Wan Ngah WZ, Ima-Nirwana S. Lessons from the Bone Chapter of the Malaysian Aging Men Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13060531. [PMID: 27231930 PMCID: PMC4923988 DOI: 10.3390/ijerph13060531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 05/17/2016] [Accepted: 05/23/2016] [Indexed: 12/17/2022]
Abstract
Male osteoporosis in Malaysia is a largely neglected problem. Therefore, a bone health study in men using quantitative ultrasonometry was launched as part of the Malaysian Aging Men Study in 2009–2012. This review aimed to summarize the findings of the aforementioned bone health study. The study examined the bone health of Chinese and Malaysian men aged 20 years and above living in Kuala Lumpur using a quantitative ultrasound device. Participants answered a questionnaire on their demographic details and physical activity status. Body anthropometry of the participants was measured and their blood collected for biochemical analysis. Results showed that a significant proportion of the Malaysian Chinese and Malay men had suboptimal bone health indicated by calcaneal speed of sound and vitamin D status. Age-related decline of the calcaneal speed of sound in these men was gradual and biphasic without ethnic difference. Body anthropometry such as height, weight, body mass index, and body fat percentage contributed to the variation of the calcaneal speed of sound in Malaysian men. Age-related changes in testosterone, insulin-like growth factor 1, and thyroid stimulating hormone also influenced the calcaneal speed of sound in these men. This study serves as a reminder that male osteoporosis in Malaysia should be an issue of concern. It is also a basis for a more comprehensive study on bone health in men in the future.
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Affiliation(s)
- Kok-Yong Chin
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia.
| | - Wan Zurinah Wan Ngah
- Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia.
| | - Soelaiman Ima-Nirwana
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia.
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Acar B, Ozay AC, Ozay OE, Okyay E, Sisman AR, Ozaksoy D. Evaluation of thyroid function status among postmenopausal women with and without osteoporosis. Int J Gynaecol Obstet 2016; 134:53-7. [PMID: 27177516 DOI: 10.1016/j.ijgo.2015.11.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 11/24/2015] [Accepted: 03/29/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To investigate the relationship between thyroid function status and bone mineral density (BMD) among women with postmenopausal osteoporosis. METHODS A retrospective study was performed among 1217 women aged 45-80years who attended the Department of Obstetrics and Gynecology at Dokuz Eylul University, Izmir, Turkey, between August 1, 2009, and June 1, 2013. Eligible participants were grouped according to the presence or absence of osteoporosis as defined by BMD measurements at the lumbar vertebrae (L1-L4), femoral neck, or trochanter of the femur. Serum levels of free tri-iodothyronine, free tetraiodothyronine, and thyroid-stimulating hormone (TSH) were assessed. RESULTS The 303 women with osteoporosis had a lower mean TSH level (1.8mIU/L) than did the 914 women without osteoporosis (1.9mIU/L; P=0.01). A positive correlation between TSH level and measures of BMD was observed (P=0.01). The TSH level was associated with a protective effect in a regression model for development of osteoporosis; the odds ratio was 0.68 (95% confidence interval 0.53-0.86). CONCLUSION Osteoporosis appeared to be independently associated with serum TSH level. Maintaining TSH levels within the upper limit of the reference range during treatment of hypothyroidism could be important to prevent osteoporosis among postmenopausal women.
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Affiliation(s)
- Berrin Acar
- Department of Obstetrics and Gynecology, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Ali C Ozay
- Department of Obstetrics and Gynecology, School of Medicine, Dokuz Eylul University, Izmir, Turkey.
| | - Ozlen E Ozay
- Department of Obstetrics and Gynecology, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Emre Okyay
- Department of Obstetrics and Gynecology, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Ali R Sisman
- Department of Biochemistry, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Dinc Ozaksoy
- Department of Radiology, School of Medicine, Dokuz Eylul University, Izmir, Turkey
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Abstract
The skeleton is an exquisitely sensitive and archetypal T3-target tissue that demonstrates the critical role for thyroid hormones during development, linear growth, and adult bone turnover and maintenance. Thyrotoxicosis is an established cause of secondary osteoporosis, and abnormal thyroid hormone signaling has recently been identified as a novel risk factor for osteoarthritis. Skeletal phenotypes in genetically modified mice have faithfully reproduced genetic disorders in humans, revealing the complex physiological relationship between centrally regulated thyroid status and the peripheral actions of thyroid hormones. Studies in mutant mice also established the paradigm that T3 exerts anabolic actions during growth and catabolic effects on adult bone. Thus, the skeleton represents an ideal physiological system in which to characterize thyroid hormone transport, metabolism, and action during development and adulthood and in response to injury. Future analysis of T3 action in individual skeletal cell lineages will provide new insights into cell-specific molecular mechanisms and may ultimately identify novel therapeutic targets for chronic degenerative diseases such as osteoporosis and osteoarthritis. This review provides a comprehensive analysis of the current state of the art.
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Affiliation(s)
- J H Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Medicine, Imperial College London, Hammersmith Campus, London W12 0NN, United Kingdom
| | - Graham R Williams
- Molecular Endocrinology Laboratory, Department of Medicine, Imperial College London, Hammersmith Campus, London W12 0NN, United Kingdom
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Biswas D, Dutta D, Maisnam I, Mukhopadhyay S, Chowdhury S. Occurrence of osteoporosis & factors determining bone mineral loss in young adults with Graves' disease. Indian J Med Res 2016; 141:322-9. [PMID: 25963493 PMCID: PMC4442330 DOI: 10.4103/0971-5916.156620] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background & objectives: There is a paucity of data with conflicting reports regarding the extent and pattern of bone mineral (BM) loss in Graves’ disease (GD), especially in young adults. Also, interpretation of BM data in Indians is limited by use of T-score cut-offs derived from Caucasians. This study was aimed to evaluate the occurrence of osteoporosis in active treatment naive patients with GD and determine the factors predicting BM loss, using standard T-scores from Caucasians and compare with the cut-offs proposed by the Indian Council of Medical Research (ICMR) for diagnosing osteoporosis in Indians. Methods: Patients with GD, >20 yr age without any history of use of anti-thyroid drugs, and normal controls without fracture history, drugs use or co-morbidities underwent BM density (BMD) assessment at lumbar spine, hip and forearm, thyroid function and calcium profile assessment. Women with menopause or premature ovarian insufficiency and men with androgen deficiency were excluded. Results: Patients with GD (n=31) had significantly lower BMD at spine (1.01±0.10 vs. 1.13±0.16 g/cm2), hip (0.88±0.10 vs. 1.04±0.19 g/cm2) and forearm (0.46±0.04 vs. 0.59±0.09 g/cm2) compared with controls (n=30) (P<0.001). Nine (29%) and six (19.3%) patients with GD had osteoporosis as per T-score and ICMR criteria, respectively. None of GD patients had osteoporosis at hip or spine as per ICMR criteria. Serum T3 had strongest inverse correlation with BMD at spine, hip and femur. Step-wise linear regression analysis after adjusting for age, BMI and vitamin D showed T3 to be the best predictor of reduced BMD at spine, hip and forearm, followed by phosphate at forearm and 48 h I131 uptake for spine BMD in GD. Interpretation & conclusions: Osteoporosis at hip or spine is not a major problem in GD and more commonly involves forearm. Diagnostic criterion developed from Caucasians tends to overdiagnose osteoporosis in Indians. T3 elevation and phosphate are important predictors of BMD. Baseline I131 uptake may have some role in predicting BMD.
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Affiliation(s)
| | - Deep Dutta
- Department of Endocrinology & Metabolism, Institute of Post Graduate Medical Education & Research & Seth Sukhlal Karnani Memorial Hospital, Kolkata, India
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Kim TH, Joung JY, Kang M, Choi SK, Kim K, Jang JY, Cho YY, Min YK, Chung JH, Kim SW. A Modest Protective Effect of Thyrotropin against Bone Loss Is Associated with Plasma Triiodothyronine Levels. PLoS One 2015; 10:e0145292. [PMID: 26679692 PMCID: PMC4682993 DOI: 10.1371/journal.pone.0145292] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 12/02/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The independent skeletal effect of thyrotropin (thyroid stimulating hormone, TSH) has been suggested in animal studies. However, clinical data on the association between bone loss and variations in TSH levels is inconsistent. This study aimed to investigate the relationship between TSH levels and bone mineral density (BMD). METHODS We conducted a cross-sectional study with 37,431 subjects (33,052 cases with euthyroidism and 4,379 cases with subclinical thyroid dysfunction) aged over 35 years. We performed thyroid function tests and measured BMD at the lumbar spine, femur neck, and total hip. RESULTS Levels of TSH and T3 were positively correlated in women (r = 0.076, P = 0.001) and uncorrelated in men. In both men and women, TSH levels correlated positively and T3 levels correlated negatively with BMD at all skeletal sites in age and body mass index adjusted analyses. BMD increased steadily with TSH levels from the subclinical hyperthyroid to subclinical hypothyroid range in subjects with T3 levels in the highest tertile (119.5-200.0 ng/dL), but was no longer significant in subjects with lower plasma T3 levels. CONCLUSIONS The variations in TSH levels within the euthyroid and subclinical range were positively correlated with BMD in healthy men and women. The negative effect of T3 on BMD appears to be compensated for by increased TSH in subjects with plasma T3 levels in the upper normal range.
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Affiliation(s)
- Tae Hyuk Kim
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Young Joung
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mira Kang
- Center for Health Promotion, Samsung Medical Center, Seoul, Korea
| | - Sun Kyu Choi
- Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyunga Kim
- Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ju Young Jang
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yoon Young Cho
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yong-Ki Min
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae Hoon Chung
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sun Wook Kim
- Division of Endocrinology & Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- * E-mail:
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Biondi B, Bartalena L, Cooper DS, Hegedüs L, Laurberg P, Kahaly GJ. The 2015 European Thyroid Association Guidelines on Diagnosis and Treatment of Endogenous Subclinical Hyperthyroidism. Eur Thyroid J 2015; 4:149-63. [PMID: 26558232 PMCID: PMC4637513 DOI: 10.1159/000438750] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 07/16/2015] [Indexed: 12/12/2022] Open
Abstract
Endogenous subclinical hyperthyroidism (SHyper) is caused by Graves' disease, autonomously functioning thyroid nodules and multinodular goitre. Its diagnosis is based on a persistently subnormal serum thyroid-stimulating hormone (TSH) level with free thyroid hormone levels within their respective reference intervals. In 2014 the European Thyroid Association Executive Committee, given the controversies regarding the treatment of Endo SHyper, formed a task force to develop clinical practice guidelines based on the principles of evidence-based medicine. The task force recognized that recent meta-analyses, including those based on large prospective cohort studies, indicate that SHyper is associated with increased risk of coronary heart disease mortality, incident atrial fibrillation, heart failure, fractures and excess mortality in patients with serum TSH levels <0.1 mIU/l (grade 2 SHyper). Therefore, despite the absence of randomized prospective trials, there is evidence that treatment is indicated in patients older than 65 years with grade 2 SHyper to potentially avoid these serious cardiovascular events, fractures and the risk of progression to overt hyperthyroidism. Treatment could be considered in patients older than 65 years with TSH levels 0.1-0.39 mIU/l (grade 1 SHyper) because of their increased risk of atrial fibrillation, and might also be reasonable in younger (<65 years) symptomatic patients with grade 2 SHyper because of the risk of progression, especially in the presence of symptoms and/or underlying risk factors or co-morbidity. Finally, the task force concluded that there are no data to support treating SHyper in younger asymptomatic patients with grade 1 SHyper. These patients should be followed without treatment due to the low risk of progression to overt hyperthyroidism and the weaker evidence for adverse health outcomes.
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Affiliation(s)
- Bernadette Biondi
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
- *Bernadette Biondi, Department of Clinical Medicine and Surgery, University of Naples Federico II, Via S. Pansini 5, IT-80131 Naples (Italy), E-Mail
| | - Luigi Bartalena
- Department of Clinical and Experimental Medicine, University of Insubria, Endocrine Unit, Ospedale di Circolo, Varese, Italy
| | - David S. Cooper
- Division of Endocrinology, Diabetes, and Metabolism, The Johns Hopkins University School of Medicine, Baltimore, Md., USA
| | - Laszlo Hegedüs
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Peter Laurberg
- Department of Endocrinology, Aalborg University Hospital, Aalborg, Denmark
| | - George J. Kahaly
- Department of Medicine I, Johannes Gutenberg University Medical Center, Mainz, Germany
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Kim S, Jung J, Jung JH, Kim SK, Kim RB, Hahm JR. Risk Factors of Bone Mass Loss at the Lumbar Spine: A Longitudinal Study in Healthy Korean Pre- and Perimenopausal Women Older than 40 Years. PLoS One 2015; 10:e0136283. [PMID: 26317525 PMCID: PMC4552667 DOI: 10.1371/journal.pone.0136283] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 08/01/2015] [Indexed: 01/07/2023] Open
Abstract
Longitudinal studies on bone mass decline for healthy women are sparse. We performed a retrospective longitudinal study to evaluate the factor associated with bone mass changes at the lumbar spine in healthy Korean pre- and perimenopausal women over the age of 40. We examined the relation of blood tests including thyroid function tests at baseline and follow-up to the annual percentage changes in average BMD of L2-L4 (A%ΔLSBMD). Four hundred and forty-three subjects without diseases or medications pertaining to bone metabolism were analyzed. The mean A%ΔLSBMD in these subjects was -0.45%/year. Though a significant correlation was observed between the A%ΔLSBMD and age, serum thyroid-stimulating hormone (TSH) level, total cholesterol (TC) level, low-density lipoprotein cholesterol (LDL-C) level, and estimated glomerular filtration rate (eGFR) at baseline and follow-up, there was a weak correlation between A%ΔLSBMD and these variables. From multiple linear regression analyses, the percent body fat, age, serum TSH level, serum uric acid level, and the menopause at follow-up were showed to have a significant association with the A%ΔLSBMD. Unlike age, percent body fat, and menopause at follow-up, which had a negative association with the A%ΔLSBMD, serum TSH level and serum uric acid level, had a positive association with the A%ΔLSBMD. The results from our study showed that the notable risk factors of BMD loss at the lumbar spine in population of our study were advancing age, menopause, higher percent body fat, lower normal TSH, and lower serum uric acid levels.
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Affiliation(s)
- Sungsu Kim
- Division of Endocrinology, Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju, Republic of Korea
| | - Jaehoon Jung
- Division of Endocrinology, Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju, Republic of Korea
- Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Jung Hwa Jung
- Division of Endocrinology, Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju, Republic of Korea
- Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Soo Kyoung Kim
- Division of Endocrinology, Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju, Republic of Korea
- Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
- * E-mail: (SKK); (JRH)
| | - Rock-Bum Kim
- Environmental Health Center, Dong-A University, Busan, Korea
| | - Jong Ryeal Hahm
- Division of Endocrinology, Department of Internal Medicine, Gyeongsang National University School of Medicine and Gyeonsang National University Hospital, Jinju, Republic of Korea
- Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
- * E-mail: (SKK); (JRH)
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Noh HM, Park YS, Lee J, Lee W. A cross-sectional study to examine the correlation between serum TSH levels and the osteoporosis of the lumbar spine in healthy women with normal thyroid function. Osteoporos Int 2015; 26:997-1003. [PMID: 25253541 DOI: 10.1007/s00198-014-2906-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
Abstract
UNLABELLED We examined the association between serum TSH levels and osteoporosis of the lumbar spine in 756 Korean women aged 65 years or older with normal thyroid function. Low-normal serum TSH levels might be a potential risk factor for the osteoporosis in non-obese elderly women. INTRODUCTION We aimed to examine the association between serum thyroid-stimulating hormone (TSH) levels and osteoporosis of the lumbar spine in healthy elderly Korean women with normal thyroid function. METHODS In this cross-sectional study, we evaluated the correlations between serum TSH levels and the osteoporosis of the lumbar spine depending on the body mass index (BMI) in a total of 756 women aged 65 years or older who underwent bone mineral density (BMD) measurement and thyroid function test in a routine health screening examination at our medical institution. RESULTS After the adjustment of the age and BMI, there was a significant positive correlation between serum TSH level within normal range and the BMD of the lumbar spine (r = 0.165, P < 0.001). In the non-obese elderly women, multivariate-adjusted odds ratios (ORs) for the osteoporosis of the lumbar spine were significantly higher in the 1st and 2nd quartiles of serum TSH levels as compared with their 4th quartile (OR 2.169, 95% CI 1.128-4.171; and OR 2.122, 95% CI 1.123-4.007, respectively). In these women, there were dose-dependent inverse correlations between quartiles of serum TSH levels and the osteoporosis of the lumbar spine (P for trend, 0.008). In the obese women, however, there were no such correlations. CONCLUSIONS In conclusion, our results suggest that low-normal serum TSH levels might be a potential risk factor for the osteoporosis of the lumbar spine in non-obese elderly women. But further prospective, large-scale, randomized controlled studies are warranted to establish our results.
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Affiliation(s)
- H-M Noh
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea
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Leader A, Ayzenfeld RH, Lishner M, Cohen E, Segev D, Hermoni D. Thyrotropin levels within the lower normal range are associated with an increased risk of hip fractures in euthyroid women, but not men, over the age of 65 years. J Clin Endocrinol Metab 2014; 99:2665-73. [PMID: 24885627 DOI: 10.1210/jc.2013-2474] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CONTEXT The contemporary literature on the relationship between serum TSH levels and osteoporotic fractures in euthyroid individuals is limited by conflicting results and analyses conducted on a small number of fractures. OBJECTIVE Our objective was to examine the association between the normal range of variation of TSH and the incidence of hip fractures in male and female euthyroid patients aged 65 years or older. DESIGN AND SETTING We performed a population-based historical prospective cohort study within the Clalit Health Services population. PARTICIPANTS Clalit Health Services members aged ≥65 years with at least 1 TSH measurement during the year 2004. We excluded patients with preexisting hip fracture, thyroid disease, malignancy, or chronic kidney disease. OUTCOME MEASURES The primary outcome was hip fracture, and the secondary outcome was any other osteoporotic fracture. STATISTICAL ANALYSIS Adjusted odds ratios comparing episodes of each outcome across 3 TSH groups (low, 0.35-1.6 mIU/L; intermediate, 1.7-2.9 mIU/L; high, 3-4.2 mIU/L) were generated using logistic regression models. RESULTS The 14 325 included participants suffered from 514 hip fractures (mean follow-up, 102 ± 3 months). Women, but not men, in the lowest TSH group had a higher incidence of hip fractures (odds ratio = 1.28, 95% confidence interval = 1.03-1.59, P = .029) when compared with the intermediate group, after multivariate adjustment for age, comorbidities, and use of drugs affecting bone metabolism. There was no difference in hip fracture incidence between intermediate- and high-TSH groups. No association was found between TSH levels and other osteoporotic fractures. CONCLUSIONS TSH levels within the lower normal range are associated with an increased risk of hip fractures in euthyroid women, but not men, aged 65 years and more.
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Affiliation(s)
- Avi Leader
- Departments of Internal Medicine A (A.L., R.H.A., M.L.), and Geriatric Medicine (R.H.A.), Meir Medical Center, Kfar-Saba 44281, Israel; Sackler Faculty of Medicine (A.L., R.H.A., M.L., D.H.), Tel-Aviv University, Tel-Aviv, Israel; and Department of Family Medicine (D.H.) in the Sharon-Shomron District (E.C., D.S.), Clalit Health Services, Israel
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Garin MC, Arnold AM, Lee JS, Robbins J, Cappola AR. Subclinical thyroid dysfunction and hip fracture and bone mineral density in older adults: the cardiovascular health study. J Clin Endocrinol Metab 2014; 99:2657-64. [PMID: 24878045 PMCID: PMC4121038 DOI: 10.1210/jc.2014-1051] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Subclinical thyroid dysfunction is common in the elderly, yet its relationship with hip fracture and bone mineral density (BMD) is unclear. OBJECTIVE We examined the association between endogenous subclinical hyper- and hypothyroidism and hip fracture and BMD in older adults. METHODS A total of 4936 US individuals 65 years old or older enrolled in the Cardiovascular Health Study and not taking thyroid preparations were included. Analyses of incident hip fracture were performed by thyroid status, over a median follow-up of 12 years. A cross-sectional analysis of thyroid status and BMD was performed in a subset of 1317 participants who had dual-energy x-ray absorptiometry scans. Models were adjusted for risk factors and stratified by sex. RESULTS No association was found between subclinical hypothyroidism and incident hip fracture compared with euthyroidism, when assessed at a single time point or persisting at two time points, in either women [hazard ratio (HR) 0.91, 95% confidence interval (CI) 0.69-1.20 for a single and HR 0.79, 95% CI 0.52-1.21 for two time points] or men (HR 1.27, 95% CI 0.82-1.95 for a single and HR 1.09, 95% CI 0.57-2.10 for two time points). Likewise, no association was found between subclinical hyperthyroidism and incident hip fracture in either sex (HR 1.11, 95% CI 0.55-2.25 in women and HR 1.78, 95% CI 0.56-5.66 in men). No association was found between subclinical thyroid dysfunction and BMD at the lumbar spine, total hip, or femoral neck sites. CONCLUSIONS Our data suggest no association between subclinical hypothyroidism or subclinical hyperthyroidism and hip fracture risk or BMD in older men and women. Additional data are needed to improve the precision of estimates for subclinical hyperthyroidism and in men.
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Affiliation(s)
- Margaret C Garin
- Division of Endocrinology, Diabetes, and Metabolism (M.C.G., A.R.C.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Department of Biostatistics (A.M.A.), University of Washington, Seattle, Washington 98155; Division of Endocrinology, Gerontology, and Metabolism (J.S.L.), Stanford University School of Medicine and Veterans Affairs Palo Alto Health Care System (J.S.L.), Palo Alto, California 94305; and Division of General Medicine (J.R.), University of California, Davis, Sacramento, California 95817
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Svare A, Nilsen TIL, Asvold BO, Forsmo S, Schei B, Bjøro T, Langhammer A. Does thyroid function influence fracture risk? Prospective data from the HUNT2 study, Norway. Eur J Endocrinol 2013; 169:845-52. [PMID: 24031093 DOI: 10.1530/eje-13-0546] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To prospectively study the relation between TSH and risk of hip and forearm fractures. DESIGN A population-based cohort study. METHODS In a substudy of the second survey of the Nord Trøndelag Health Study, Norway (HUNT2, 1995-97), linked with a hospital-based fracture registry, we investigated the relation between baseline TSH and risk of hip and/or forearm fractures. POPULATION A total of 16 610 women and 8595 men aged 40 years or more, without previous self-reported thyroid disease and hip or forearm fractures. RESULTS During 12.5 years follow-up, a total of 1870 women and 342 men experienced hip or forearm fractures. Overall, there was no relation between baseline TSH and fracture risk. However, there was weak evidence that women with TSH <0.5 and >3.5 mU/l had a slightly increased risk of hip fractures (hazard ratio (HR) 1.30, 95% CI 0.97-1.94 and HR 1.19, 95% CI 0.93-1.52) compared with the reference group with TSH of 1.5-2.4 mU/l. Supplementary analyses showed higher hip fracture risk in women with TSH >4.0 mU/l and negative thyroid peroxidase antibodies (TPOAb) compared with the reference group (HR 1.75, 95% CI 1.24-2.46). CONCLUSION We found no statistically significant relation between baseline TSH and subsequent fracture risk, but the data suggest a weak positive association with hip fracture risk among women with both low and high TSH. The latter association was confined to women with negative TPOAb status.
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Affiliation(s)
- Anders Svare
- Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
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Thyroid and aging or the aging thyroid? An evidence-based analysis of the literature. J Thyroid Res 2013; 2013:481287. [PMID: 24106641 PMCID: PMC3782841 DOI: 10.1155/2013/481287] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 08/07/2013] [Indexed: 11/17/2022] Open
Abstract
Thyroid hormone production, metabolism, and action change with aging. The reference ranges for serum thyrotropin and thyroid hormones are derived mainly from younger populations. Thus, the prevalence of subclinical thyroid dysfunction is increased greatly in the elderly. However, it is unclear whether mild thyroid dysfunction in the elderly is associated with adverse outcomes. In this review, we discuss current evidence-based literature on thyroid function in the elderly and whether subclinical thyroid dysfunction in the elderly should be treated.
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Londono J, Valencia P, Santos AM, Gutiérrez LF, Baquero R, Valle-Oñate R. Risk factors and prevalence of osteoporosis in premenopausal women from poor economic backgrounds in Colombia. Int J Womens Health 2013; 5:425-30. [PMID: 23901298 PMCID: PMC3720571 DOI: 10.2147/ijwh.s45170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION The prevalence of osteoporosis in premenopausal women along with associated risk factors has not been well elucidated. Recent studies have shown that poverty is a risk factor for osteoporosis. OBJECTIVE To determine the prevalence of osteoporosis and its risk factors in a group of premenopausal women of poor economic background in Colombia. MATERIALS AND METHODS The study comprised 1483 women between 35 and 53 years of age with at least one risk factor for osteoporosis. Demographic characteristics, reproductive factors, comorbidities, and risk factors for osteoporosis were evaluated. Lumbar vertebrae (L2-L4) and the femur neck were assessed using dual-energy X-ray absorptiometry. RESULTS Of the 1483 patients, 1443 (97.3%) had at least one risk factor for osteoporosis and 40 (2.7%) had no risk factors. Patients with one risk factor were referred to have a dual-energy X-ray absorptiometry scan, which 795 women completed. Osteopenia was found in 30.5% and osteoporosis in 4.8% of these women. The majority of these women were homemakers, and 18.5% of the patients with osteoporosis were also illiterate (P < 0.001). The risk factors identified in this population were: hypothyroidism (odds ratio [OR] = 5.19, 95% confience interval [CI]:1.6-16), age over 45 years old (OR = 1.13, 95% CI: 1.0-1.2), a history of malnutrition or low birth weight (OR = 2.35, 95% CI: 1.0-5.2), or early-onset menopause (OR = 3.4, 95% CI: 1.6-7.2). CONCLUSION Premenopausal Colombian women from impoverished areas showed increased rates of osteopenia and osteoporosis compared with the data described in the current literature. Hypothyroidism was an outstanding risk factor in Colombian premenopausal women with osteoporosis. This shows the influence of poverty and other risk factors on the onset of osteoporosis in women aged 35-53 years.
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Affiliation(s)
- John Londono
- Rheumatology Department, Universidad de La Sabana, Chía, Cundinamarca, Colombia
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