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Kong SK, Tsai MC, Yeh CL, Tsai YC, Chien MN, Lee CC, Tsai WH. Association between primary hyperparathyroidism and cardiovascular outcomes: A systematic review and meta-analysis. Bone 2024; 185:117130. [PMID: 38795811 DOI: 10.1016/j.bone.2024.117130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/28/2024]
Abstract
BACKGROUND Excess parathyroid hormone (PTH) is associated with an increased risk of cardiovascular disease (CVD). PURPOSE We aimed to evaluate the correlation between primary hyperparathyroidism (PHPT) and CVD or cardiovascular (CV) death. DATA SOURCES Comprehensive searches of PubMed, Embase and ClinicalTrials.gov until May 20, 2023 with the following keywords: "primary hyperparathyroidism," "cardiovascular disease," and "mortality." STUDY SELECTIONS Cohort studies and randomized controlled trials comparing PHPT patients to the general population and those who had received parathyroidectomy (PTX) to those who did not. DATA EXTRACTION Three investigators independently extracted data and assessed study quality. DATA SYNTHESIS Eleven cohort studies and one randomized controlled trial were identified, including 264,227 PHPT patients with or without PTX, and the average age reported in the studies was 62 years. PHPT was associated with a higher risk of total death (RR 1.39 [95 % confidence interval (CI) 1.23-1.57) and CV death (RR 1.61 [95 % CI 1.47-1.78]) than the general population. However, there was no significant difference in CVD risk between patients with PHPT and the general population (RR 1.73 [95 % CI 0.87-3.47]). When compared to patients without PTX, PTX had a lower risk of CV death (RR 0.75 [95 % CI 0.71-0.80]), total death (RR 0.64 [95 % CI 0.60-0.70]) and CVD (RR 0.92 [95 % CI 0.90-0.94]). LIMITATION High heterogeneity among the included articles, and most of them were retrospective and older studies. CONCLUSIONS PHPT was associated with higher risk of total death and CV death while PTX was associated with lower risk of total death, CV death, and CVD.
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Affiliation(s)
- Siang-Ke Kong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Mackay Memorial Hospital, Taipei 104, Taiwan
| | - Ming-Chieh Tsai
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Mackay Memorial Hospital, Taipei 104, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City 251, Taiwan; Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei 104, Taiwan
| | - Chun-Lin Yeh
- Department of Medicine, MacKay Medical College, New Taipei City 251, Taiwan
| | - Yu-Cheng Tsai
- Department of Medicine, MacKay Medical College, New Taipei City 251, Taiwan
| | - Ming-Nan Chien
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Mackay Memorial Hospital, Taipei 104, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City 251, Taiwan
| | - Chun-Chuan Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Mackay Memorial Hospital, Taipei 104, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City 251, Taiwan
| | - Wen-Hsuan Tsai
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Mackay Memorial Hospital, Taipei 104, Taiwan.
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Barnett MJ. Association Between Primary Hyperparathyroidism and Secondary Diabetes Mellitus: Findings From a Scoping Review. Cureus 2023; 15:e40743. [PMID: 37350980 PMCID: PMC10284313 DOI: 10.7759/cureus.40743] [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] [Accepted: 06/21/2023] [Indexed: 06/24/2023] Open
Abstract
An ill-defined association exists between diabetes mellitus (insulin resistance) and primary hyperparathyroidism. This article explores this phenomenon while providing an explanation for such a relationship and reviewing the evidence regarding the response to insulin sensitivity following a parathyroidectomy. Primary hyperparathyroidism may increase the risk of developing insulin resistance; peculiarly, this is not present in all patients. It is likely that both intracellular hypercalcemia and hypophosphatemia alter the insulin receptor expression and response; the contribution of parathyroid hormone is less clear. Following parathyroidectomy, patients may demonstrate improvement in their insulin sensitivity, while others have no response or a detrimental effect. A varied phenotype exists among patients, and furthermore, it is unclear why certain patients demonstrate improvement in insulin sensitivity following a parathyroidectomy, whereas others fail to do so. While this review provides a broad overview of the general endocrine community, it is imperative to note that clinical applicability is limited until further studies address these remaining uncertainties. Due to the lack of understanding regarding this endocrinological enigma, the presence of insulin resistance, at this present time, should not be a criterion for a parathyroidectomy.
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Affiliation(s)
- Maxim J Barnett
- Internal Medicine, Einstein Medical Center Philadelphia, Philadelphia, USA
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3
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Modica R, Liccardi A, Minotta R, Benevento E, Cannavale G, Colao A. Parathyroid diseases and metabolic syndrome. J Endocrinol Invest 2023; 46:1065-1077. [PMID: 36773188 DOI: 10.1007/s40618-023-02018-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/17/2023] [Indexed: 02/12/2023]
Abstract
PURPOSE Parathyroid diseases are related to parathyroid hormone (PTH) dysregulation by parathyroid cells or alteration of PTH function. They include hyperparathyroidism (PTH excess), hypoparathyroidism (PTH deficiency) and pseudohypoparathyroidism (PTH resistance). Little is known about correlation between parathyroid diseases and metabolic syndrome (MetS). METHODS An electronic-based search using PubMed was performed until October 2022 and articles were selected based on relevance of title, abstract, English language and publication in peer-reviewed journals. RESULTS Possible association between PTH alterations and the diverse manifestation of MetS have been proposed and it could be supposed that MetS may negatively influence parathyroid diseases. Available data show significant association for hyperparathyroidism and pseudohypoparathyroidism. CONCLUSIONS This review highlights the possible implications between MetS and parathyroid diseases. Given the increasing MetS global prevalence and the higher parathyroid diseases awareness and diagnosis, it may be interesting to further explore the possible role of alterations in parathyroid homeostasis in the development of MetS components with dedicated prospective studies.
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Affiliation(s)
- R Modica
- Department of Clinical Medicine and Surgery, Endocrinology Unit of Federico II University of Naples, 80131, Naples, Italy.
| | - A Liccardi
- Department of Clinical Medicine and Surgery, Endocrinology Unit of Federico II University of Naples, 80131, Naples, Italy
| | - R Minotta
- Department of Clinical Medicine and Surgery, Endocrinology Unit of Federico II University of Naples, 80131, Naples, Italy
| | - E Benevento
- Department of Clinical Medicine and Surgery, Endocrinology Unit of Federico II University of Naples, 80131, Naples, Italy
| | - G Cannavale
- Department of Clinical Medicine and Surgery, Endocrinology Unit of Federico II University of Naples, 80131, Naples, Italy
| | - A Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit of Federico II University of Naples, 80131, Naples, Italy
- UNESCO Chair on Health Education and Sustainable Development, Federico II University of Naples, 80131, Naples, Italy
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4
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Saleem N, Elahi S, Rizvi NB. Association of vitamin D deficiency and insulin resistance in nondiabetic obese women: role of parathyroid hormone. Int J Diabetes Dev Ctries 2023. [DOI: 10.1007/s13410-022-01164-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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5
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Al-Jehani A, Al-Ahmed F, Nguyen-Thi PL, Bihain F, Nomine-Criqui C, Demarquet L, Guerci B, Ziegler O, Brunaud L. Insulin resistance is more severe in patients with primary hyperparathyroidism. Surgery 2022; 172:552-558. [DOI: 10.1016/j.surg.2022.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 12/05/2021] [Accepted: 02/19/2022] [Indexed: 10/18/2022]
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Mohd Ghozali N, Giribabu N, Salleh N. Mechanisms Linking Vitamin D Deficiency to Impaired Metabolism: An Overview. Int J Endocrinol 2022; 2022:6453882. [PMID: 35859985 PMCID: PMC9293580 DOI: 10.1155/2022/6453882] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/19/2022] [Accepted: 06/13/2022] [Indexed: 12/12/2022] Open
Abstract
Vitamin D deficiency is a common health problem worldwide. Despite its known skeletal effects, studies have begun to explore its extra-skeletal effects, that is, in preventing metabolic diseases such as obesity, hyperlipidemia, and diabetes mellitus. The mechanisms by which vitamin D deficiency led to these unfavorable metabolic consequences have been explored. Current evidence indicates that the deficiency of vitamin D could impair the pancreatic β-cell functions, thus compromising its insulin secretion. Besides, vitamin D deficiency could also exacerbate inflammation, oxidative stress, and apoptosis in the pancreas and many organs, which leads to insulin resistance. Together, these will contribute to impairment in glucose homeostasis. This review summarizes the reported metabolic effects of vitamin D, in order to identify its potential use to prevent and overcome metabolic diseases.
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Affiliation(s)
- Nurulmuna Mohd Ghozali
- Department of Physiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 59100, Malaysia
| | - Nelli Giribabu
- Department of Physiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 59100, Malaysia
| | - Naguib Salleh
- Department of Physiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 59100, Malaysia
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Comparison of Profile of Primary Hyperparathyroidism With and Without Type 2 Diabetes Mellitus: Retrospective Analysis From the Indian Primary Hyperparathyroidism Registry. Endocr Pract 2021; 28:96-101. [PMID: 34601115 DOI: 10.1016/j.eprac.2021.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/17/2021] [Accepted: 09/27/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To describe the prevalence and compare the clinicobiochemical profile of patients with primary hyperparathyroidism (PHPT) with and without type 2 diabetes mellitus (T2DM). METHODS We conducted a retrospective observational study wherein the details of patients with PHPT with T2DM (PHPT-T2DM) and without T2DM were retrieved from the Indian PHPT Registry (www.indianphptregistry.com) between 2005 and 2019. We compared the clinical, biochemical, and postoperative findings of patients with PHPT-T2DM with age-, sex-, and body mass index-matched patients with PHPT without T2DM (in 1:2 ratio). RESULTS Of the 464 patients with PHPT, 54 (11.6%) had T2DM. We observed an increase in the prevalence of PHPT-T2DM cases over time; only 7 (7.1%) of the total patients with PHPT had T2DM between 2005 and 2009 that increased to 31 (12.8%) in the last half decade (2015-2019). Patients with PHPT-T2DM had a significantly lower prevalence of nephrolithiasis (18.5% vs 36.1%, respectively; P = .03) and a higher prevalence of pancreatitis (22.2% vs 5.6%, respectively; P = .007) than those without T2DM. Furthermore, intact parathyroid hormone (203 pg/mL [139.8-437.3 pg/mL] vs 285 pg/mL [166-692 pg/mL], respectively; P = .04) and serum creatinine (0.90 mg/dL [0.67-1.25 mg/dL] vs 1.10 mg/dL [0.73-1.68 mg/dL], respectively; P = .03) levels were significantly lower in patients with PHPT-T2DM than those without T2DM. Also, tumor weight tended to be lower in patients with PHPT-T2DM than in the non-T2DM counterparts (1.05 g [0.5-2.93 g] vs 2.16 g [0.81-7.0 g], respectively; P = .06). CONCLUSION The prevalence of T2DM in Asian Indians with PHPT is 11.6%. Patients with PHPT-T2DM are characterized by a higher prevalence of pancreatitis, a lower prevalence of nephrolithiasis, and lower levels of intact parathyroid hormone/creatinine. Part of the clinical picture can possibly be explained by early detection of PHPT in patients with T2DM consequent to more frequent screening.
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8
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Yavari M, Feizi A, Haghighatdoost F, Ghaffari A, Rezvanian H. The influence of parathyroidectomy on cardiometabolic risk factors in patients with primary hyperparathyroidism: a systematic review and meta-analysis. Endocrine 2021; 72:72-85. [PMID: 33057988 DOI: 10.1007/s12020-020-02519-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/02/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE Primary hyperparathyroidism (PHPT) is associated with increased risk of cardiovascular morbidity and mortality. We aim to determine whether parathyroidectomy (PTX) can change cardiometabolic risk factors including serum lipids, glycemic parameters, systolic and diastolic blood pressure, C reactive protein (CRP), and body mass index (BMI). METHODS MEDLINE, Web of Science, Scopus, and Google Scholar were searched for relevant articles published till June 2020. Fixed-effect or random-effects models were used to estimate the weighted mean difference (WMD) and 95% CI for outcomes where applicable. RESULTS In total, 34 studies were eligible to be included in the current meta-analysis. Our results indicated no favorable change in serum triglyceride (n = 13, WMD = -0.06, 95% CI: -0.15, 0.03 mmol/L), total cholesterol (n = 15, WMD = 0.01, 95% CI: -0.14, 0.16 mmol/L), LDL-C (n = 10, WMD = -0.01, 95% CI: -0.17, 0.19 mmol/L), HDL-C (n = 10, WMD = 0.03, 95% CI: -0.001, 0.06 mmol/L), and CRP (n = 5, WMD = 0.82, 95% CI: -0.01, 1.64 mg/L) after PTX in PHPT patients. However, glucose (n = 24, WMD = -0.16, 95% CI: -0.26, -0.06 mmol/L), serum insulin (n = 12, WMD = -1.11, 95% CI: -1.73, -0.49 µIU/mL), systolic (n = 17, WMD = -10.14, 95% CI: -12.27, -8.01 mmHg), and diastolic (n = 16, WMD = -5.21, 95% CI: -7.0, -3.43 mmHg) blood pressures were decreased after PTX, whilst a significant increase was observed in BMI (n = 13, WMD = 0.35, 95% CI: 0.19, 0.51 kg/m2). CONCLUSIONS PTX could improve glycemic parameters and blood pressure, without any significant change in serum lipoproteins and CRP.
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Affiliation(s)
- Maryam Yavari
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Awat Feizi
- Biostatistics and Epidemiology Department, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fahimeh Haghighatdoost
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azin Ghaffari
- Department of Nephrology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Hassan Rezvanian
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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9
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Karras S, Annweiler C, Kiortsis D, Koutelidakis I, Kotsa K. Improving Glucose Homeostasis after Parathyroidectomy for Normocalcemic Primary Hyperparathyroidism with Co-Existing Prediabetes. Nutrients 2020; 12:nu12113522. [PMID: 33207657 PMCID: PMC7696582 DOI: 10.3390/nu12113522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 10/28/2020] [Accepted: 11/12/2020] [Indexed: 01/14/2023] Open
Abstract
We have previously described increased fasting plasma glucose levels in patients with normocalcemic primary hyperparathyroidism (NPHPT) and co-existing prediabetes, compared to prediabetes per se. This study evaluated the effect of parathyroidectomy (PTx) (Group A), versus conservative follow-up (Group B), in a small cohort of patients with co-existing NPHPT and prediabetes. Sixteen patients were categorized in each group. Glycemic parameters (levels of fasting glucose (fGlu), glycosylated hemoglobin (HbA1c), and fasting insulin (fIns)), the homeostasis model assessment for estimating insulin secretion (HOMA-B) and resistance (HOMA-IR), and a 75-g oral glucose tolerance test were evaluated at baseline and after 32 weeks for both groups. Measurements at baseline were not significantly different between Groups A and B, respectively: fGlu (119.4 ± 2.8 vs. 118.2 ± 1.8 mg/dL, p = 0.451), HbA1c (5.84 ± 0.3 %vs. 5.86 ± 0.4%, p = 0.411), HOMA-IR (3.1 ± 1.2 vs. 2.9 ± 0.2, p = 0.213), HOMA-B (112.9 ± 31.8 vs. 116.9 ± 21.0%, p = 0.312), fIns (11.0 ± 2.3 vs. 12.8 ± 1.4 μIU/mL, p = 0.731), and 2-h post-load glucose concentrations (163.2 ± 3.2 vs. 167.2 ± 3.2 mg/dL, p = 0.371). fGlu levels demonstrated a positive correlation with PTH concentrations for both groups (Group A, rho = 0.374, p = 0.005, and Group B, rho = 0.359, p = 0.008). At the end of follow-up, Group A demonstrated significant improvements after PTx compared to the baseline: fGlu ((119.4 ± 2.8 vs. 111.2 ± 1.9 mg/dL, p = 0.021) (−8.2 ± 0.6 mg/dL)), and 2-h post-load glucose concentrations ((163.2 ± 3.2 vs. 144.4 ± 3.2 mg/dL, p = 0.041), (−18.8 ± 0.3 mg/dL)). For Group B, results demonstrated non-significant differences: fGlu ((118.2 ± 1.8 vs. 117.6 ± 2.3 mg/dL, p = 0.031), (−0.6 ± 0.2 mg/dL)), and 2-h post-load glucose concentrations ((167.2 ± 2.7 vs. 176.2 ± 3.2 mg/dL, p = 0.781), (+9.0 ± 0.8 mg/dL)). We conclude that PTx for individuals with NPHPT and prediabetes may improve their glucose homeostasis when compared with conservative follow-up, after 8 months of follow-up.
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Affiliation(s)
- Spyridon Karras
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, 54621 Thessaloniki, Greece;
- Correspondence: ; Tel.: +30-2310324863
| | - Cedric Annweiler
- Division of Geriatric Medicine, Department of Neuroscience, Angers University Hospital, 49035 Angers, France;
- Robarts Research Institute, Department of Medical Biophysics, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - Dimitris Kiortsis
- Department of Nuclear Medicine, University of Ioannina, 45110 Ioannina, Greece;
| | - Ioannis Koutelidakis
- Second Department of Surgery, Gennimatas General Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Kalliopi Kotsa
- Division of Endocrinology and Metabolism, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, 54621 Thessaloniki, Greece;
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10
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Brandtner EM, Muendlein A, Leiherer A, Armbruster FP, Dschietzig TB, Geiger K, Fraunberger P, Saely CH, Drexel H. Serum Parathyroid Hormone Predicts Mortality in Coronary Angiography Patients with Type 2 Diabetes. J Clin Endocrinol Metab 2020; 105:5891791. [PMID: 32785694 DOI: 10.1210/clinem/dgaa512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/03/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Elevated serum levels of parathyroid hormone (PTH), one of the main regulators of calcium homeostasis and vitamin D metabolism, have been proposed as predictors of mortality. The impact of type 2 diabetes mellitus (T2DM) on the putative association between PTH and mortality has not been investigated thus far. AIM The aim of our study was to investigate the impact of T2DM on the power of PTH to predict mortality risk. METHODS Serum PTH levels were determined in 904 consecutive Caucasian patients referred to coronary angiography for the evaluation of established or suspected stable coronary artery disease (CAD), including 235 patients with T2DM. Prospectively, deaths were recorded over a mean follow-up period of 6.3 years. RESULTS PTH at baseline did not differ significantly between patients with and without T2DM (P = .307). Cox regression analysis revealed that the serum PTH level strongly predicted all-cause mortality in patients with T2DM (hazard ratio [HR] = 2.35 [1.37-4.03]; P = .002), whereas PTH did not predict all-cause mortality in patients without T2DM (HR = 1.04 [0.81-1.32]; P = .766). The interaction term PTH × T2DM was significant (P = .006), indicating a significantly stronger impact of PTH on mortality risk in patients with T2DM than in individuals without diabetes. The impact of PTH on mortality risk in patients with T2DM remained significant after adjustment for glycated hemoglobin A1c, diabetes duration, classical cardiovascular risk factors, serum levels of vitamin D, and kidney function (HR = 2.10 [1.10-4.10]; P = .030). CONCLUSION We conclude that PTH is a significantly stronger predictor of all-cause mortality in patients with T2DM than in those without T2DM.
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Affiliation(s)
- Eva Maria Brandtner
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
| | - Axel Muendlein
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
| | - Andreas Leiherer
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Medical Central Laboratories, Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Liechtenstein
| | | | | | - Kathrin Geiger
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Medical Central Laboratories, Feldkirch, Austria
| | | | - Christoph H Saely
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Liechtenstein
- Department of Internal Medicine I, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
| | - Heinz Drexel
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Liechtenstein
- Drexel University College of Medicine, Philadelphia, Pennsylvania
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Karras SN, Koufakis T, Tsekmekidou X, Antonopoulou V, Zebekakis P, Kotsa K. Increased parathyroid hormone is associated with higher fasting glucose in individuals with normocalcemic primary hyperparathyroidism and prediabetes: A pilot study. Diabetes Res Clin Pract 2020; 160:107985. [PMID: 31866526 DOI: 10.1016/j.diabres.2019.107985] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/23/2019] [Accepted: 12/17/2019] [Indexed: 11/23/2022]
Abstract
AIMS This pilot study aimed to evaluate differences in glycemic parameters between patients with prediabetes and normocalcemic primary hyperparathyroidism (NPHPT) and controls with prediabetes and normal parathyroid hormone (PTH) and calcium concentrations. METHODS 20 patients with NPHPT and prediabetes and 42 age-, gender-, and body mass index-matched controls with prediabetes were included. Glycemic parameters [fasting glucose (fGlu), glycosylated hemoglobin (HbA1c), fasting insulin (fIns)] were evaluated. Homeostasis Model Assessment was used for estimating insulin secretion (HOMA-B) and resistance (HOMA-IR). Participants underwent a 75-g oral glucose tolerance test. RESULTS HbA1c (5.9 ± 0.0 vs 5.9 ± 0.0%, p = 0.44), HOMA-IR (3.7 ± 1.2 vs 2.9 ± 0.2, p = 0.48), HOMA-B (117.8 ± 31.8 vs 146.9 ± 22.0%, p = 0.14), fIns (14.0 ± 4.3 vs 12.2 ± 1.1 μIU/ml, p = 0.53) and 2-hour post-load glucose concentrations (157.2 ± 2.2 vs 152.2 ± 2.0 mg/dl, p = 0.07), were nondifferent in the two groups. Higher fGlu levels were evident in the NPHPT, compared to the control group (105.6 ± 2.8 vs 98.2 ± 1.8 mg/dl, p = 0.01). fGlu demonstrated a positive correlation with PTH concentrations (rho = 0.374, p = 0.005). CONCLUSIONS Individuals with NPHPT and prediabetes present an unfavorable glycemic profile compared to age-matched people with prediabetes, suggesting a direct adverse effect of elevated PTH on glucose homeostasis.
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Affiliation(s)
- Spyridon N Karras
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - Theocharis Koufakis
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - Xanthippi Tsekmekidou
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - Vassiliki Antonopoulou
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - Pantelis Zebekakis
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - Kalliopi Kotsa
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece.
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12
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Antonopoulou V, Karras SN, Koufakis T, Yavropoulou M, Katsiki N, Gerou S, Papavramidis T, Kotsa K. Rising Glucagon-Like Peptide 1 Concentrations After Parathyroidectomy in Patients With Primary Hyperparathyroidism. J Surg Res 2020; 245:22-30. [DOI: 10.1016/j.jss.2019.07.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 05/26/2019] [Accepted: 07/11/2019] [Indexed: 01/16/2023]
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Hedesan OC, Fenzl A, Digruber A, Spirk K, Baumgartner-Parzer S, Bilban M, Kenner L, Vierhapper M, Elbe-Bürger A, Kiefer FW. Parathyroid hormone induces a browning program in human white adipocytes. Int J Obes (Lond) 2018; 43:1319-1324. [PMID: 30518824 PMCID: PMC6411131 DOI: 10.1038/s41366-018-0266-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 08/07/2018] [Accepted: 09/06/2018] [Indexed: 12/22/2022]
Abstract
Energy dissipation through the promotion of brown adipose tissue (BAT) or browning of white adipose tissue has recently evolved as novel promising concept in the fight against metabolic disease. New evidence suggests that hormones can contribute to the thermogenic programming of adipocytes through paracrine or endocrine actions. Recent studies in rodents identified parathyroid hormone (PTH) and PTH-related peptide as mediators of energy wasting in cachexia models due to adipocyte browning. However, the effects of PTH on human adipocyte thermogenesis and metabolic activity are unknown. Here we isolated subcutaneous white adipocyte precursor cells (APCs) from human donors followed by stimulation with recombinant PTH. Our data show that acute and chronic PTH administration in primary in vitro differentiated human subcutaneous adipocytes induces a molecular thermogenic program with increased mitochondrial activity and oxidative respiratory capacity. PTH also enhances hormone sensitive lipase activity and lipolysis in human adipocytes which may contribute to the observed thermogenic effects. In summary, we demonstrate here that PTH is a novel mediator of human adipocyte browning, suggesting a hitherto unknown endocrine axis between the parathyroid gland and adipose tissue in humans.
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Affiliation(s)
- Oana C Hedesan
- Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Anna Fenzl
- Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Astrid Digruber
- Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Katrin Spirk
- Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Sabina Baumgartner-Parzer
- Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Martin Bilban
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Lukas Kenner
- Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria
| | - Martin Vierhapper
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria
| | - Adelheid Elbe-Bürger
- Department of Dermatology, Division of Immunology, Allergy and Infectious Diseases, Laboratory of Cellular and Molecular Immunobiology of the Skin, Medical University of Vienna, Vienna, Austria
| | - Florian W Kiefer
- Clinical Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria.
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Godang K, Lundstam K, Mollerup C, Fougner SL, Pernow Y, Nordenström J, Rosén T, Jansson S, Hellström M, Bollerslev J, Heck A. The effect of surgery on fat mass, lipid and glucose metabolism in mild primary hyperparathyroidism. Endocr Connect 2018; 7:941-948. [PMID: 30300532 PMCID: PMC6144936 DOI: 10.1530/ec-18-0259] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
CONTEXT Mild primary hyperparathyroidism has been associated with increased body fat mass and unfavorable cardiovascular risk factors. OBJECTIVE To assess the effect of parathyroidectomy on fat mass, glucose and lipid metabolism. DESIGN, PATIENTS, INTERVENTIONS, MAIN OUTCOME MEASURES 119 patients previously randomized to observation (OBS; n = 58) or parathyroidectomy (PTX; n = 61) within the Scandinavian Investigation of Primary Hyperparathyroidism (SIPH) trial, an open randomized multicenter study, were included. Main outcome measures for this study were the differences in fat mass, markers for lipid and glucose metabolism between OBS and PTX 5 years after randomization. RESULTS In the OBS group, total cholesterol (Total-C) decreased from mean 5.9 (±1.1) to 5.6 (±1.0) mmol/L (P = 0.037) and LDL cholesterol (LDL-C) decreased from 3.7 (±1.0) to 3.3 (±0.9) mmol/L (P = 0.010). In the PTX group, the Total-C and LDL-C remained unchanged resulting in a significant between-group difference over time (P = 0.013 and P = 0.026, respectively). This difference was driven by patients who started with lipid-lowering medication during the study period (OBS: 5; PTX: 1). There was an increase in trunk fat mass in the OBS group, but no between-group differences over time. Mean 25(OH) vitamin D increased in the PTX group (P < 0.001), but did not change in the OBS group. No difference in parameters of glucose metabolism was detected. CONCLUSION In mild PHPT, the measured metabolic and cardiovascular risk factors were not modified by PTX. Observation seems safe and cardiovascular risk reduction should not be regarded as a separate indication for parathyroidectomy based on the results from this study.
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Affiliation(s)
- Kristin Godang
- Section of Specialized EndocrinologyOslo University Hospital, Oslo, Norway
| | - Karolina Lundstam
- Department of RadiologyInstitute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Charlotte Mollerup
- Clinic of Breast and Endocrine SurgeryCenter HOC, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | | | - Ylva Pernow
- Departments of Molecular MedicineSurgery and Endocrinology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Jörgen Nordenström
- Department of Molecular Medicine and SurgeryKarolinska Institutet, Stockholm, Sweden
| | - Thord Rosén
- Department of MedicineSahlgrenska University Hospital, Gothenburg, Sweden
| | - Svante Jansson
- Department of Endocrine SurgerySahlgrenska University Hospital, Gothenburg, Sweden
| | - Mikael Hellström
- Department of RadiologyInstitute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jens Bollerslev
- Section of Specialized EndocrinologyOslo University Hospital, Oslo, Norway
- Faculty of MedicineUniversity of Oslo, Oslo, Norway
| | - Ansgar Heck
- Section of Specialized EndocrinologyOslo University Hospital, Oslo, Norway
- Faculty of MedicineUniversity of Oslo, Oslo, Norway
- Correspondence should be addressed to A Heck:
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15
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Kim MH, Lee J, Ha J, Jo K, Lim DJ, Lee JM, Chang SA, Kang MI, Cha BY. Gender specific association of parathyroid hormone and vitamin D with metabolic syndrome in population with preserved renal function. Sci Rep 2018; 8:1149. [PMID: 29348466 PMCID: PMC5773688 DOI: 10.1038/s41598-017-17397-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 11/16/2017] [Indexed: 12/27/2022] Open
Abstract
The association of parathyroid hormone (PTH) and vitamin D with Metabolic syndrome (MetS) was evaluated using representative data from the Korean population. Data from 7004 subjects aged 50 or older with preserved renal function (excluding chronic kidney disease stage 3b to 5) who were included in the Korean National Health and Nutrition Examination Survey between 2008 and 2010 were analysed. Higher PTH levels (pg/ml) were observed in subjects with MetS than in those without MetS among both genders (60.1 (58.6–61.6) vs. 62.4 (60.7–64.2) in males p = 0.018, 60.7 (59.4–62.1) vs. 63.9 (62.4–65.6) in females, p < 0.001). For females, PTH levels were significantly higher in subjects with MetS than in those without MetS after adjustment for possible covariates. Lower 25(OH)D levels were significantly associated with MetS only in male subjects (p = 0.004). As the number of MetS components increased, a significant rise in PTH levels (p for trend 0.005 in males and 0.024 in females) and a decrease in 25(OH)D levels (p for trend < 0.001 in males and 0.053 in females) were observed. In conclusion, among subjects with preserved renal function, PTH levels were possibly associated with MetS in females, whereas vitamin D levels exhibited a possible link to MetS in males.
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Affiliation(s)
- Min-Hee Kim
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeongmin Lee
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeonghoon Ha
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kwanhoon Jo
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Jun Lim
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jung-Min Lee
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Sang-Ah Chang
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Moo-Il Kang
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Bong Yun Cha
- Department of Internal Medicine, Division of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Pepe J, Cipriani C, Sonato C, Raimo O, Biamonte F, Minisola S. Cardiovascular manifestations of primary hyperparathyroidism: a narrative review. Eur J Endocrinol 2017; 177:R297-R308. [PMID: 28864535 DOI: 10.1530/eje-17-0485] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/14/2017] [Accepted: 08/31/2017] [Indexed: 01/02/2023]
Abstract
Data on cardiovascular disease in primary hyperparathyroidism (PHPT) are controversial; indeed, at present, cardiovascular involvement is not included among the criteria needed for parathyroidectomy. Aim of this narrative review is to analyze the available literature in an effort to better characterize cardiovascular involvement in PHPT. Due to physiological effects of both parathyroid hormone (PTH) and calcium on cardiomyocyte, cardiac conduction system, smooth vascular, endothelial and pancreatic beta cells, a number of data have been published regarding associations between symptomatic and mild PHPT with hypertension, arrhythmias, endothelial dysfunction (an early marker of atherosclerosis), glucose metabolism impairment and metabolic syndrome. However, the results, mainly derived from observational studies, are inconsistent. Furthermore, parathyroidectomy resulted in conflicting outcomes, which may be linked to several potential biases. In particular, differences in the methods utilized for excluding confounding co-existing cardiovascular risk factors together with differences in patient characteristics, with varying degrees of hypercalcemia, may have contributed to these discrepancies. The only meta-analysis carried out in PHPT patients, revealed a positive effect of parathyroidectomy on left ventricular mass index (a predictor of cardiovascular mortality) and more importantly, that the highest pre-operative PTH levels were associated with the greatest improvements. In normocalcemic PHPT, it has been demonstrated that cardiovascular risk factors are almost similar compared to hypercalcemic PHPT, thus strengthening the role of PTH in the cardiovascular involvement. Long-term longitudinal randomized trials are needed to determine the impact of parathyroidectomy on cardiovascular diseases and mortality in PHPT.
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Affiliation(s)
- Jessica Pepe
- Department of Internal Medicine and Medical Disciplines, 'Sapienza' University, Rome, Italy
| | - Cristiana Cipriani
- Department of Internal Medicine and Medical Disciplines, 'Sapienza' University, Rome, Italy
| | - Chiara Sonato
- Department of Internal Medicine and Medical Disciplines, 'Sapienza' University, Rome, Italy
| | - Orlando Raimo
- Department of Internal Medicine and Medical Disciplines, 'Sapienza' University, Rome, Italy
| | - Federica Biamonte
- Department of Internal Medicine and Medical Disciplines, 'Sapienza' University, Rome, Italy
| | - Salvatore Minisola
- Department of Internal Medicine and Medical Disciplines, 'Sapienza' University, Rome, Italy
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17
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The incidence of new onset diabetes after transplantation and related factors: Single center experience. Nefrologia 2017; 37:181-188. [PMID: 28262264 DOI: 10.1016/j.nefro.2016.11.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/27/2016] [Accepted: 11/17/2016] [Indexed: 12/17/2022] Open
Abstract
AIM New-onset diabetes after transplantation (NODAT) is a frequent metabolic complication and is considered a risk factor for patients undergoing renal transplant. The aim of this study was to evaluate the incidence and developing duration of new-onset diabetes after transplant (NODAT) and influencing factors. METHODS All patients' data was investigated retrospectively. Diabetics, follow-up period<6 months, age<18years were excluded. Demographic, clinical and laboratory data was recorded. Patients were divided into two groups: with/without NODAT. NODAT group was divided into four subgroups according to the time of developing NODAT, which were 0-3, 3-6, 6-12 and 12 months later. Two groups were compared, to investigate the incidence of NODAT and risk factors associated with the occurrence of NODAT. RESULTS We retrospectively analyzed the records of 570 patients, of which 420 patients were included. Seventy (16.6%) patients had NODAT (36 female, mean age 51.7±8.2 years, mean follow-up 41.6±21.5 months), 52.8% of patients developed NODAT within the first three months of being diagnosed. 350 patients (116 female, mean age 43.2±12.5 years, mean follow-up 41.6±21.5 months) were without NODAT. The incidence of impaired fasting glucose (IFG) during the first week after transplant was found to be higher in the patients with NODAT (p<0.001). There was positive correlation between NODAT and older age, obesity, family history of diabetes, presence of IFG, fasting plasma glucose, total and LDL-cholesterol, triglycerides, parathormone. Old age, obesity, presence of IFG, pretransplant hypertriglyceridemia and hyperparathyroidism were predictors of development of NODAT. CONCLUSION Incidence of NODAT, especially the first six months, was high. All patients should be screened for IFG within the first week. Patients with dyslipidemia, elderly and obese patients should be closely monitored for the risk of development of NODAT.
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18
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Krishnan A, Muthusami S. Hormonal alterations in PCOS and its influence on bone metabolism. J Endocrinol 2017; 232:R99-R113. [PMID: 27895088 DOI: 10.1530/joe-16-0405] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 11/28/2016] [Indexed: 11/08/2022]
Abstract
According to the World Health Organization (WHO) polycystic ovary syndrome (PCOS) occurs in 4-8% of women worldwide. The prevalence of PCOS in Indian adolescents is 12.2% according to the Indian Council of Medical Research (ICMR). The National Institute of Health has documented that it affects approximately 5 million women of reproductive age in the United States. Hormonal imbalance is the characteristic of many women with polycystic ovarian syndrome (PCOS). The influence of various endocrine changes in PCOS women and their relevance to bone remains to be documented. Hormones, which include gonadotrophin-releasing hormone (GnRH), insulin, the leutinizing/follicle-stimulating hormone (LH/FSH) ratio, androgens, estrogens, growth hormones (GH), cortisol, parathyroid hormone (PTH) and calcitonin are disturbed in PCOS women. These hormones influence bone metabolism in human subjects directly as well as indirectly. The imbalance in these hormones results in increased prevalence of osteoporosis in PCOS women. Limited evidence suggests that the drugs taken during the treatment of PCOS increase the risk of bone fracture in PCOS patients through endocrine disruption. This review is aimed at the identification of the relationship between bone mineral density and hormonal changes in PCOS subjects and identifies potential areas to study bone-related disorders in PCOS women.
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Affiliation(s)
- Abhaya Krishnan
- Department of BiochemistryKarpagam University, Coimbatore, Tamil Nadu, India
| | - Sridhar Muthusami
- Department of BiochemistryKarpagam University, Coimbatore, Tamil Nadu, India
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Karakose M, Caliskan M, Arslan MS, Demirci T, Karakose S, Cakal E. The impact of parathyroidectomy on serum ADAMTS1, ADAMTS4 levels, insulin resistance, and subclinical cardiovascular disease in primary hyperparathyroidism. Endocrine 2017; 55:283-288. [PMID: 27844209 DOI: 10.1007/s12020-016-1175-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/06/2016] [Indexed: 10/20/2022]
Abstract
PURPOSE Primary hyperparathyroidism has been associated with increased incidence of morbidity and mortality of the cardiovascular system. The etiopathogenetic mechanisms underlying this association are still not completely clear. Accumulating evidence suggested that a disintegrin and metalloproteinase with thrombospondin-like motifs (ADAMTS) has a role in the development of inflammation and atherosclerosis. In this study, we aimed to determine whether there is a change in serum levels of ADAMTS1, ADAMTS4, carotid intima-media thickness, and cardiovascular risk score after the surgery and also whether there is a relationship between ADAMTS levels and cardiovascular risk score in hypercalcemic primary hyperparathyroidism patients. METHODS The study included the 48 consecutive newly diagnosed patients with primary hyperparathyroidism. The patients were evaluated before and six months after parathyroidectomy. The Framingham score is used to calculate cardiovascular risk. Serum ADAMTS levels were determined by a human enzyme-linked immunoassay in all subjects. RESULTS The fasting glucose, fasting insulin levels and HOMA values were decreased significantly in all patients after surgery compared to the pretreatment values (p < 0.05). ADAMTS1, ADAMTS4, and carotid intima-media thickness levels were significantly lower after surgical correction of primary hyperparathyroidism compared to the preoperative values (p < 0.05). cardiovascular risk score was decreased after parathyroidectomy however, the difference were not statistical significant (p > 0.05). There were statistically significant relationship between cardiovascular risk score and waist/hip ratio, calcium, LDL-cholesterol, carotid intima-media thickness, ADAMTS4 values. CONCLUSION Based on the results of the present study, fasting glucose, fasting insulin levels, ADAMTS1, ADAMTS4, and carotid intima-media thickness might be an additional parameters during the management of patients with primary hyperparathyroidism, since these factors might improve after surgery.
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Affiliation(s)
- Melia Karakose
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey.
| | - Mustafa Caliskan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Muyesser Sayki Arslan
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Taner Demirci
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - Suleyman Karakose
- Department of Nephrology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Erman Cakal
- Department of Endocrinology and Metabolism, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
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Larsson S, Jones HA, Göransson O, Degerman E, Holm C. Parathyroid hormone induces adipocyte lipolysis via PKA-mediated phosphorylation of hormone-sensitive lipase. Cell Signal 2016; 28:204-213. [DOI: 10.1016/j.cellsig.2015.12.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 12/18/2015] [Accepted: 12/20/2015] [Indexed: 12/19/2022]
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Duran C, Sevinc B, Kutlu O, Karahan O. Parathyroidectomy Decreases Insulin Resistance Index in Patients with Primary Hyperparathyroidism. Indian J Surg 2016; 79:101-105. [PMID: 28442834 DOI: 10.1007/s12262-015-1431-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 12/23/2015] [Indexed: 12/19/2022] Open
Abstract
Primary hyperparathyroidism (PHPT) has been considered a cause of insulin resistance (IR) and impaired glucose metabolism. However, there are conflicting results related with the recovery of insulin resistance in patients with PHPT following curative parathyroidectomy. Our aim is to evaluate the effects of curative parathyroidectomy on IR in patients with PHPT. This is a prospective interventional study. Twenty-one consecutive patients with symptomatic PHPT were included into the study. All patients underwent parathyroidectomy. Fasting serum glucose, calcium, phosphorous, parathormone, plasma insulin, and vitamin D levels were measured both at baseline and 2 months after parathyroidectomy. Insulin resistance was calculated by homeostasis of model assessment-insulin resistance (HOMA-IR). Two months after curative parathyroidectomy, serum levels of calcium (p = 0.001), PTH (p < 0.001), insulin (p = 0.003), and HOMA-IR (p = 0.003) decreased, while phosphorous levels increased (p = 0.001). During this period, no changes were observed at vitamin D and glucose levels. We concluded that curative parathyroidectomy decreases HOMA-IR index in patients with PHPT. Studies with larger population and longer follow-up period are required to confirm our results.
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Affiliation(s)
- Cevdet Duran
- Department of Internal Medicine, Endocrinology and Metabolism, Konya Training and Research Hospital, 42100 Konya, Turkey
| | - Barıs Sevinc
- Department of General Surgery, Konya Training and Research Hospital, Konya, Turkey
| | - Orkide Kutlu
- Department of Internal Medicine, Endocrinology and Metabolism, Konya Training and Research Hospital, 42100 Konya, Turkey
| | - Omer Karahan
- Department of General Surgery, Konya Training and Research Hospital, Konya, Turkey
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Cansu GB, Yılmaz N, Özdem S, Balcı MK, Süleymanlar G, Arıcı C, Boz A, Sarı R, Altunbaş HA. Parathyroidectomy in asymptomatic primary hyperparathyroidism reduces carotid intima-media thickness and arterial stiffness. Clin Endocrinol (Oxf) 2016; 84:39-47. [PMID: 26399562 DOI: 10.1111/cen.12952] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 07/11/2015] [Accepted: 09/03/2015] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Although an International Workshop has suggested that cardiovascular assessment in asymptomatic primary hyperparathyroidism (PHPT) patients is not necessary, improvements in risk factors of subclinical atherosclerosis have been shown following parathyroidectomy. The objectives of this study were to determine whether parathyroidectomy in asymptomatic PHPT patients causes any change in carotid intima-media thickness (CIMT), arterial stiffness [pulse wave velocity (PWV)] and soluble CD40 ligand (sCD40L) levels. DESIGN Prospective study evaluating female patients diagnosed with asymptomatic PHPT in a single centre over a 6-month period. PATIENTS A total of 48 subjects were included: 17 hypercalcaemic (HC, mean age: 51 ± 8 years, Ca: 2·73 ± 0·17 mmol/l) and 16 normocalcaemic (NC, mean age: 58 ± 7 years, Ca: 2·30 ± 0·10 mmol/l) PHPT patients, and 15 healthy controls (mean age: 52 ± 4 years, Ca: 2·27 ± 0·07 mmol/l). MEASUREMENTS Biochemical tests, CIMT, PWV and sCD40L levels were compared at baseline and 6 months after parathyroidectomy (PTx). RESULTS At baseline, CIMT and PWV values in the HC and NC patients were higher than in the control group. While there was a significant reduction in CIMT (601 ± 91 μm vs 541 ± 65 μm, P = 0·006) and PWV (9·6 ± 1·8 vs 8·4 ± 1·5 m/s, P = 0·000) in the hypercalcaemic group at the end of the 6th month after PTx, no change was observed in normocalcaemic group (P = 0·686 and P = 0·196 respectively). No differences were observed in sCD40L levels between patient and control groups or between baseline and 6 months in patients undergoing parathyroidectomy. CONCLUSION Parathyroidectomy leads to an improvement in the structural and functional impairment associated with atherosclerosis in the vascular wall in asymptomatic hypercalcaemic PHPT patients.
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Affiliation(s)
- Güven Barış Cansu
- Division of Endocrinology and Metabolism, Yunusemre State Hospital, Eskişehir, Turkey
| | - Nusret Yılmaz
- Division of Endocrinology and Metabolism, Şırnak State Hospital, Şırnak, Turkey
| | - Sebahat Özdem
- Department of Biochemistry, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Mustafa Kemal Balcı
- Division of Endocrinology and Metabolism, School of Medicine, Akdeniz University, Antalya, Turkey
| | | | - Cumhur Arıcı
- Department of General Surgery, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Adil Boz
- Department of Nuclear Medicine, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Ramazan Sarı
- Division of Endocrinology and Metabolism, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Hasan Ali Altunbaş
- Division of Endocrinology and Metabolism, School of Medicine, Akdeniz University, Antalya, Turkey
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Yener Ozturk F, Erol S, Canat MM, Karatas S, Kuzu I, Dogan Cakir S, Altuntas Y. Patients with normocalcemic primary hyperparathyroidism may have similar metabolic profile as hypercalcemic patients. Endocr J 2016; 63:111-8. [PMID: 26581584 DOI: 10.1507/endocrj.ej15-0392] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Primary hyperparathyroidism is well known to be associated with cardiovascular morbidity and mortality. However, it is unclear whether normocalcemic primary hyperparathyroidism (NC-PHPT) and hypercalcemic primary hyperparathyroidism (HC-PHPT) share the same risk factors. We aimed to determine prevalence of metabolic syndrome in NC-PHPT and compare metabolic syndrome parameters and insulin resistance in NC-PHPT subjects with those in HC-PHPT and control subjects. After excluding patients with secondary hyperparathyroidism, the study enrolled 25 patients with NC-PHPT, 24 patients with HC-PHPT and 30 age-gender matched controls. All participants were evaluated using the International Diabetes Federation (IDF)-2006 metabolic syndrome criteria. Compared with HC-PHPT patients, NC-PHPT patients had similar prevalence of metabolic syndrome, glucose intolerance, and previous history of hypertension/anti-hypertensive medications, but compared with controls, NC-PHPT patients had significantly higher prevalence of glucose intolerance and previous history of hypertension/anti-hypertensive medications. Not serum calcium but PTH concentration was found to be significantly higher in those with glucose intolerance. Serum fasting triglyceride concentration and waist circumference were found to be positively correlated only with serum PTH concentration. In conclusion, patients with NC-PHPT may be prone to similar metabolic disturbances linked to higher cardiovascular risk like patients with HC-PHPT. Although NC-PHPT is thought to occur early in the development of the classical disease, it should be monitored regularly because of its metabolic consequences.
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Affiliation(s)
- Feyza Yener Ozturk
- Department of Endocrinology and Metabolism, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
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Mendoza-Zubieta V, Gonzalez-Villaseñor GA, Vargas-Ortega G, Gonzalez B, Ramirez-Renteria C, Mercado M, Molina-Ayala MA, Ferreira-Hermosillo A. High prevalence of metabolic syndrome in a mestizo group of adult patients with primary hyperparathyroidism (PHPT). BMC Endocr Disord 2015; 15:16. [PMID: 25886602 PMCID: PMC4415358 DOI: 10.1186/s12902-015-0014-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 03/27/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Primary hyperparathyroidism (PHPT) and metabolic syndrome (MS) have been independently related to cardiovascular morbidities, however this association is still controversial. Mexican population has a high prevalence of metabolic syndrome, however its frequency seems to be even higher than expected in patients with PHPT. METHODS We retrospectively reviewed the charts of patients that underwent parathyroidectomy for PHPT in a referral center and used the criteria from the National Cholesterol Educational Program (NCEP)/Adult Treatment Panel III (ATP III) to define MS before surgery. We compared the characteristics between the patients with and without MS. RESULTS 60 patients were analyzed, 77% were female and 72% had a single parathyroid adenoma. MS was present in 59% of the patients, this group was significantly older (57 vs. 48 years, p = 0.01) and they had lower iPTH (115 vs. 161 ng/ml, p = 0.017). Other parameters did not show differences. CONCLUSIONS MS is frequent in our population diagnosed with primary hyperparathyroidism, adverse cardiovascular parameters are common and significant differences in calcium metabolism compared to the non-MS group are present.
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Affiliation(s)
- Victoria Mendoza-Zubieta
- Endocrinology Departament Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Gloria A Gonzalez-Villaseñor
- Endocrinology Departament Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Guadalupe Vargas-Ortega
- Endocrinology Departament Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Baldomero Gonzalez
- Endocrinology Departament Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Claudia Ramirez-Renteria
- Endocrinology Experimental Investigation Unit Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Moises Mercado
- Endocrinology Experimental Investigation Unit Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Mario A Molina-Ayala
- Endocrinology Departament Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
| | - Aldo Ferreira-Hermosillo
- Endocrinology Departament Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Cuauhtemoc N° 330, Colonia Doctores, México City, DF, Mexico.
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Ivarsson KM, Clyne N, Almquist M, Akaberi S. Hyperparathyroidism and new onset diabetes after renal transplantation. Transplant Proc 2015; 46:145-50. [PMID: 24507041 DOI: 10.1016/j.transproceed.2013.07.076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 07/30/2013] [Indexed: 12/23/2022]
Abstract
BACKGROUND Secondary hyperparathyroidism persists after renal transplantation in a substantial number of patients. Primary hyperparathyroidism and secondary hyperparathyroidism are both associated with abnormalities in glucose metabolism, such as insufficient insulin release and glucose intolerance. The association of hyperparathyroidism and diabetes after renal transplantation has, as far as we know, not been studied. Our aim was to investigate whether hyperparathyroidism is associated with new-onset diabetes mellitus after transplantation (NODAT) during the first year posttransplantation. STUDY DESIGN In a retrospective study, we analyzed data on patient characteristics, treatment details, and parathyroid hormone (PTH) in 245 adult nondiabetic patients who underwent renal transplantation between January 2000 and June 2011. RESULTS The first year cumulative incidence of NODAT was 15%. The first serum PTH value after transplantation was above normal range in 74% of the patients. In multiple logistic regression analysis, PTH levels above twice normal range (>13.80 pmol/L) were significantly associated with NODAT (odds ratio [OR], 4.25; 95% confidence interval [CI], 1.13-15.92; P = .03) compared with PTH within normal range (≤6.9 pmol/L). Age between 45 and 65 years (OR, 2.80; 95% CI, 1.07-7.36; P = .04) compared with age <45 years was also associated with NODAT. CONCLUSION We found a strong association between hyperparathyroidism and NODAT in the first year after renal transplantation. Both conditions are common and have a negative impact on graft and patient survivals. Our results should be confirmed in prospective studies.
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Affiliation(s)
- K M Ivarsson
- Department of Nephrology, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - N Clyne
- Department of Nephrology, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - M Almquist
- Department of Surgery, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - S Akaberi
- Department of Nephrology, Clinical Sciences Lund, Lund University, Lund, Sweden.
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Procopio M, Barale M, Bertaina S, Sigrist S, Mazzetti R, Loiacono M, Mengozzi G, Ghigo E, Maccario M. Cardiovascular risk and metabolic syndrome in primary hyperparathyroidism and their correlation to different clinical forms. Endocrine 2014; 47:581-9. [PMID: 24287796 DOI: 10.1007/s12020-013-0091-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 10/15/2013] [Indexed: 11/30/2022]
Abstract
Cardiometabolic disorders have been associated with primary hyperparathyroidism (PHPT), while the relationship of cardiovascular risk score (CRS) and metabolic syndrome (MS) with different clinical presentation of PHPT remains undefined. Our aim was to evaluate CRS, MS and its components in PHPT looking for their correlation to different clinical forms. In 68 consecutive PHPT patients and 68 matched controls, CRS, MS and its components were assessed to perform an observational case-control study at an ambulatory referral center for Bone Metabolism Diseases. Patients were stratified in symptomatic and asymptomatic PHPT; these latter were divided in high-risk and low-risk subgroups for end-organ damage. An increased proportion of PHPT patients had intermediate-high CRS and MS (mean, 95 % Confidence Interval (CI) 51.5 %, 39.6-63.3 and 20.6 %, 11.0-30.2, respectively, p < 0.02 vs. controls). Intermediate-high CRS was prevalent both in symptomatic and low-risk asymptomatic PHPT while MS resulted prevalent in low-risk asymptomatic but not in symptomatic PHPT. Type 2 DM, IFG, mixed dyslipidemia, hypertriglyceridemia, HDL-hypocholesterolemia, and LDL-hypercholesterolemia predominated in low-risk asymptomatic, while only LDL-hypercholesterolemia prevailed also in symptomatic PHPT. In patients and controls without cardiometabolic risk factors, HOMA-IR index was significantly increased in PHPT vs. controls (p < 0.03) and associated to total calcium (R = 0.73; p < 0.001). By multivariate analysis low-risk asymptomatic PHPT predicted MS after adjusting for age, sex, and BMI. Our data show an increased frequency of intermediate-high CRS both in symptomatic and low-risk asymptomatic PHPT while MS prevails in low-risk asymptomatic PHPT, supporting the potential for cardiovascular morbidity and mortality also in this form.
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Affiliation(s)
- M Procopio
- Division of Endocrinology, Diabetology and Metabolism, Department of Biomedical Sciences, University of Turin, Turin, Italy,
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Gianotti L, Tassone F, Baffoni C, Pellegrino M, Cassibba S, Castellano E, Magro G, Cesario F, Visconti G, Borretta G. Relationship between insulin sensitivity and bone mineral density in primary hyperparathyroidism. Clin Endocrinol (Oxf) 2014; 81:350-5. [PMID: 24750210 DOI: 10.1111/cen.12472] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 01/20/2014] [Accepted: 04/14/2014] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Evidence of crosstalk between bone and insulin metabolism has been identified. In primary hyperparathyroidism (PHPT), scant data exist on this relationship. AIM To evaluate the relationship between insulin levels or sensitivity and bone mineral density (BMD) in PHPT. SUBJECT AND METHODS Two hundred and sixty-seven patients with PHPT without known diabetes mellitus were studied. Fasting blood glucose and insulin levels as well as BMD at lumbar spine, femoral neck and forearm were measured. Insulin sensitivity was assessed using Quantitative Insulin Sensitivity Check Index (QUICKI). The same parameters were measured 2 years (interquartile range 2·8 years) after surgery (PTX) in a subgroup of patients (n = 51). RESULTS In univariate analysis, a positive relationship between insulin levels and BMD (R = 0·17, P < 0·03) or T-score (R = 0·20, P < 0·005) was found at femoral neck level. Consequently, a negative relationship between QUICKI and femoral BMD (R = -0·20, P < 0·01) or T-score (R = -0·21, P < 0·004) was found. In multivariate analysis, when femoral BMD was the dependent variable, age (beta = -0·35, P < 0·000004), BMI (beta = 0·39, P < 0·00001), PTH (beta = -0·18, P < 0·05) and QUICKI (R = -0·15, P < 0·05) had an independent effect (R(2) = 0·29). Insulin levels and QUICKI did not change after PTX. No relationship was found between QUICKI or insulin levels at the time of diagnosis and change in BMD at any site at follow-up. CONCLUSIONS Our data show a weak relationship between insulin levels and/or insulin sensitivity and BMD in PHPT. However, the insulin state does not influence change in bone density after PTX in PHPT.
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Affiliation(s)
- Laura Gianotti
- Division of Endocrinology, Department of Internal Medicine, S.Croce & Carle Hospital, Cuneo, Italy
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Doherty AH, Florant GL, Donahue SW. Endocrine regulation of bone and energy metabolism in hibernating mammals. Integr Comp Biol 2014; 54:463-83. [PMID: 24556365 DOI: 10.1093/icb/icu001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Precise coordination among organs is required to maintain homeostasis throughout hibernation. This is particularly true in balancing bone remodeling processes (bone formation and resorption) in hibernators experiencing nutritional deprivation and extreme physical inactivity, two factors normally leading to pronounced bone loss in non-hibernating mammals. In recent years, important relationships between bone, fat, reproductive, and brain tissues have come to light. These systems share interconnected regulatory mechanisms of energy metabolism that potentially protect the skeleton during hibernation. This review focuses on the endocrine and neuroendocrine regulation of bone/fat/energy metabolism in hibernators. Hibernators appear to have unique mechanisms that protect musculoskeletal tissues while catabolizing their abundant stores of fat. Furthermore, the bone remodeling processes that normally cause disuse-induced bone loss in non-hibernators are compared to bone remodeling processes in hibernators, and possible adaptations of the bone signaling pathways that protect the skeleton during hibernation are discussed. Understanding the biological mechanisms that allow hibernators to survive the prolonged disuse and fasting associated with extreme environmental challenges will provide critical information regarding the limit of convergence in mammalian systems and of skeletal plasticity, and may contribute valuable insight into the etiology and treatment of human diseases.
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Affiliation(s)
- Alison H Doherty
- *Department of Biology, Colorado State University, Fort Collins, CO 80523-1620, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523-1620, USA*Department of Biology, Colorado State University, Fort Collins, CO 80523-1620, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523-1620, USA
| | - Gregory L Florant
- *Department of Biology, Colorado State University, Fort Collins, CO 80523-1620, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523-1620, USA
| | - Seth W Donahue
- *Department of Biology, Colorado State University, Fort Collins, CO 80523-1620, USA; Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523-1620, USA
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Kara M, Ozçakar L, Sümer HG, Ekiz T, Ozbudak Demir S, Akıncı A. Recurrent stroke and myocardial infarction in a young woman with severe osteoporosis and hyperparathyroidism. Int J Cardiol 2014; 172:e192-3. [PMID: 24439869 DOI: 10.1016/j.ijcard.2013.12.134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 12/23/2013] [Indexed: 11/27/2022]
Affiliation(s)
- Murat Kara
- Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Turkey.
| | - Levent Ozçakar
- Hacettepe University Medical School, Department of Physical Medicine and Rehabilitation, Ankara, Turkey
| | - Hatice Gözde Sümer
- Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Turkey
| | - Timur Ekiz
- Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Turkey
| | - Sibel Ozbudak Demir
- Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Turkey
| | - Ayşen Akıncı
- Ankara Physical Medicine and Rehabilitation Training and Research Hospital, Department of Physical Medicine and Rehabilitation, Turkey
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Walker MD, Rubin M, Silverberg SJ. Nontraditional manifestations of primary hyperparathyroidism. J Clin Densitom 2013; 16:40-7. [PMID: 23374740 PMCID: PMC3564501 DOI: 10.1016/j.jocd.2012.11.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 11/18/2012] [Indexed: 02/02/2023]
Abstract
Classical primary hyperparathyroidism (PHPT) was previously a multisystemic symptomatic disorder not only with overt skeletal and renal complications but also with neuropsychological, cardiovascular, gastrointestinal, and rheumatic effects. The presentation of PHPT has evolved, and today most patients are asymptomatic. Osteitis fibrosa cystica is rarely seen today, and nephrolithiasis is less common. Gastrointestinal and rheumatic symptoms are not part of the clinical spectrum of modern PHPT. It remains unclear whether neuropsychological symptoms and cardiovascular disease, neither of which are currently indications for recommending parathyroidectomy (PTX), are part of the modern phenotype of PHPT. A number of observational studies suggest that mild PHPT is associated with depression, decreased quality of life, and changes in cognition, but limited data from randomized controlled trials (RCTs) have not indicated consistent benefits after surgery. The increased cardiovascular morbidity and mortality in severe PHPT has not been definitively demonstrated in mild disease, although there is some evidence for more subtle cardiovascular abnormalities, such as increased vascular stiffness, among others. Results from observational studies that have assessed the effect of PTX on cardiovascular health have been conflicting. The single RCT in this area did not demonstrate that PTX was beneficial. Despite recent progress in these areas, more data from rigorously designed studies are needed to better inform the clinical management of patients with asymptomatic PHPT.
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Affiliation(s)
- Marcella Donovan Walker
- Division of Endocrinology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
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31
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Abstract
Primary hyperparathyroidism (PHPT) can be characterized as either symptomatic or asymptomatic, or, most recently, as normocalcemic. In the current issue of the journal, Cakir et al. report that insulin resistance and glucose intolerance is not an aspect of normocalcemic PHPT. However, both the current study as well as the literature are compromised by the lack of appropriate classification of normocalcemic PHPT subjects. Rigorously characterized cohorts are necessary to determine whether glucose intolerance is in fact present in normocalcemic PHPT.
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Manco M, Calvani M, Nanni G, Greco AV, Iaconelli A, Gasbarrini G, Castagneto M, Mingrone G. Low 25-Hydroxyvitamin D Does Not Affect Insulin Sensitivity in Obesity after Bariatric Surgery. ACTA ACUST UNITED AC 2012; 13:1692-700. [PMID: 16286516 DOI: 10.1038/oby.2005.207] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE A positive correlation between levels of 25-hydroxyvitamin D [25(OH)D] and insulin sensitivity has been shown in healthy subjects. We aimed to test the hypothesis that concentration of 25(OH)D influences insulin sensitivity in obesity before and after weight loss. RESEARCH METHODS AND PROCEDURES We investigated the relation between serum 25(OH)D and insulin sensitivity (estimated by euglycemic-hyperinsulinemic clamp) in 116 obese women (BMI > or = 40 kg/m2) evaluated before and 5 and 10 years after biliopancreatic diversion (BPD). Body composition was estimated by the isotope dilution method. RESULTS Prevalence of hypovitaminosis D was 76% in the obese status and 91% and 89% at 5 and 10 years after BPD, respectively, despite ergocalciferol supplementation. 25(OH)D concentration decreased from 39.2 +/- 22.3 in obesity (p = 0.0001) to 27.4 +/- 16.4 and 25.1 +/- 13.9 nM 5 and 10 years after BPD, respectively. Whole-body glucose uptake increased from 24.27 +/- 4.44 at the baseline to 57.29 +/- 11.56 and 57.71 +/- 8.41 mumol/kg(fat free mass) per minute 5 and 10 years after BPD, respectively (p = 0.0001). Predictor of 25(OH)D was fat mass (R2 = 0.26, p = 0.0001 in obesity; R2 = 0.20, p = 0.02 after BPD). Parathormone correlated with fat mass (R2 = 0.19; p = 0.0001) and BMI (R2 = 0.053; p = 0.01) and inversely with M value (R2 = 0.16; p = 0.0001), but only in obese subjects. DISCUSSION A high prevalence of hypovitaminosis D was observed in morbid obesity both before and after BPD. Low 25(OH)D did not necessarily imply increased insulin resistance after BPD, a condition where, probably, more powerful determinants of insulin sensitivity overcome the low circulating 25(OH)D levels. However, the present data cannot exclude some kind of influence of vitamin D status on glucose and insulin metabolism.
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Affiliation(s)
- Melania Manco
- Department of Internal Medicine, Catholic University, School of Medicine, 484 Pineta Sacchetti, 00168 Rome, Italy.
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Luigi P, Chiara FM, Laura Z, Cristiano M, Giuseppina C, Luciano C, Giuseppe P, Sabrina C, Susanna S, Antonio C, Giuseppe C, Giorgio DT, Claudio L. Arterial Hypertension, Metabolic Syndrome and Subclinical Cardiovascular Organ Damage in Patients with Asymptomatic Primary Hyperparathyroidism before and after Parathyroidectomy: Preliminary Results. Int J Endocrinol 2012; 2012:408295. [PMID: 22719761 PMCID: PMC3375164 DOI: 10.1155/2012/408295] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 03/17/2012] [Accepted: 03/22/2012] [Indexed: 12/14/2022] Open
Abstract
Background. Primary hyperparathyroidism (PHPT) is associated with high cardiovascular morbidity, and the role of calcium and parathyroid hormone is still controversial. Objective. To evaluate the prevalence and outcomes of metabolic syndrome, hypertension, and some cardiovascular alterations in asymptomatic PHPT, and specific changes after successful parathyroidectomy. Material and Methods. We examined 30 newly diagnosed PHPT patients (8 males, 22 females; mean age 56 ± 6 yrs), 30 patients with essential hypertension (EH) (9 males, 21 females; mean age 55 ± 4), and 30 normal subjects (NS) (9 males, 21 females: mean age 55 ± 6). All groups underwent evaluation with ambulatory monitoring blood pressure, echocardiography, and color-Doppler artery ultrasonography and were successively revaluated after one year from parathyroidectomy. Results. PHPT patients presented a higher prevalence of metabolic syndrome (38%) with respect to EH (28%). Prevalence of hypertension in PHPT was 81%, and 57% presented altered circadian rhythm of blood pressure, with respect to EH (35%) and NS (15%). PHPT showed an important myocardial and vascular remodelling. During follow-up in PHPT patients, we found significant reduction of prevalence of metabolic syndrome, blood pressure, and "non-dipping phenomenon." Conclusions. Cardiovascular and metabolic alterations should be considered as added parameters in evaluation of patients with asymptomatic PHPT.
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Affiliation(s)
- Petramala Luigi
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | - Formicuccia Maria Chiara
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | - Zinnamosca Laura
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | - Marinelli Cristiano
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | - Cilenti Giuseppina
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | - Colangelo Luciano
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | - Panzironi Giuseppe
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
| | | | - Sciomer Susanna
- Department of Cardiovascular, Respiratory and Morphological Sciences, University of Rome “Sapienza”, Rome, Italy
| | - Ciardi Antonio
- Department of Surgery “P. Valdoni”, University of Rome “Sapienza”, Rome, Italy
| | - Cavallaro Giuseppe
- Department of Surgery “P. Valdoni”, University of Rome “Sapienza”, Rome, Italy
| | - De Toma Giorgio
- Department of Surgery “P. Valdoni”, University of Rome “Sapienza”, Rome, Italy
| | - Letizia Claudio
- Secondary Hypertension Unit, Department of Internal Medicine and Medical Specialties, University of Rome “Sapienza”, Rome, Italy
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Abstract
Excess body weight is a major risk factor for cardiovascular disease, increasing the risk of hypertension, hyperglycaemia and dyslipidaemia, recognized as the metabolic syndrome. Adipose tissue acts as an endocrine organ by producing various signalling cytokines called adipokines (including leptin, free fatty acids, tumour necrosis factor-α, interleukin-6, C-reactive protein, angiotensinogen and adiponectin). A chronic dysregulation of certain adipokines can have deleterious effects on insulin signalling. Chronic sympathetic overactivity is also known to be present in central obesity, and recent findings demonstrate the consequence of an elevated sympathetic outflow to organs such as the heart, kidneys and blood vessels. Chronic sympathetic nervous system overactivity can also contribute to a further decline of insulin sensitivity, creating a vicious cycle that may contribute to the development of the metabolic syndrome and hypertension. The cause of this overactivity is not clear, but may be driven by certain adipokines. The purpose of this review is to summarize how obesity, notably central or visceral as observed in the metabolic syndrome, leads to adipokine expression contributing to changes in insulin sensitivity and overactivity of the sympathetic nervous system.
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Affiliation(s)
- Michael M Smith
- Department of Human Physiology, University of Oregon, Eugene, OR 97403-1240, USA
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35
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Naharci I, Bozoglu E, Kocak N, Doganci S, Doruk H, Serdar M. Effect of vitamin D on insulin sensitivity in elderly patients with impaired fasting glucose. Geriatr Gerontol Int 2011; 12:454-60. [DOI: 10.1111/j.1447-0594.2011.00791.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Effects of parathyroid hormone on immune function. Clin Dev Immunol 2010; 2010. [PMID: 20886005 PMCID: PMC2945648 DOI: 10.1155/2010/418695] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2010] [Accepted: 06/15/2010] [Indexed: 12/04/2022]
Abstract
Parathyroid hormone (PTH) function as immunologic mediator has become interesting with the recent usage of PTH analogue (teriparatide) in the management of osteoporosis. Since the early 1980s, PTH receptors were found on most immunologic cells (neutrophils, B and T cells). The in vitro evaluations for a possible role of PTH as immunomodulator have shown inconsistent results mainly due to methodological heterogeneity of these studies: it used different PTH formulations (rat, bovine, and human), at different dosages and different incubating periods. In some of these studies, the lymphocytes were collected from uremic patients or animals, which renders the interpretation of the results problematic due to the effect of uremic toxins. Parathyroidectomy has been found to reverse the immunologic defect in patients with high PTH levels. Nonetheless, the clinical significance of these findings is unclear. Further studies are needed to define if PTH does have immunomodulatory effects.
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Shinoki A, Hara H. Calcium deficiency in the early stages after weaning is associated with the enhancement of a low level of adrenaline-stimulated lipolysis and reduction of adiponectin release in isolated rat mesenteric adipocytes. Metabolism 2010; 59:951-8. [PMID: 20015519 DOI: 10.1016/j.metabol.2009.10.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Revised: 10/16/2009] [Accepted: 10/19/2009] [Indexed: 02/06/2023]
Abstract
Dysregulation of visceral adipocytes increases the incidence of metabolic syndrome. Higher production of nonesterified fatty acid and changes in adipocytokine release may trigger insulin resistance. Many studies have suggested that calcium (Ca) deficiency is associated with insulin resistance; however, the mechanisms are poorly understood. We examined the effects of Ca deficiency on adrenaline-induced lipolysis and adipocytokine release in the early stages after weaning using freshly isolated adipocytes from mesenteric fat tissue of 3-week-old male Sprague-Dawley rats fed a normal-Ca (5 g/kg diet) or low-Ca (1 g/kg diet) diet for 4 weeks. The release rate of nonesterified fatty acid in the mesenteric adipocytes after stimulation with a low level of adrenaline (0.2 microg/mL) was much higher in the Ca-deficient group than in the control group. In contrast, adiponectin release in the mesenteric fat cells was lower in Ca-deficient rats. Leptin and tumor necrosis factor-alpha secretion showed a similar tendency without significant intergroup differences, and monocyte chemoattractant protein-1 release was not affected by Ca deficiency. We found that Ca deficiency reduced the average size of fat cells through a large increase in the number of cells slightly smaller than the average size, which may be associated with the changes in the properties of the mesenteric adipose tissue. Our present results suggest that a low intake of Ca in the early stages after weaning is associated with changes in the properties of mesenteric adipocytes, which may be linked to insulin resistance in the future.
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Affiliation(s)
- Aki Shinoki
- Laboratory of Nutritional Biochemistry, Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
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Rudman A, Pearson ER, Smith D, Srivastava R, Murphy MJ, Leese GP. Insulin resistance before and after parathyroidectomy in patients with primary hyperparathyroidism--a pilot study. Endocr Res 2010; 35:85-93. [PMID: 20408756 DOI: 10.3109/07435801003724503] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Primary hyperparathyroidism (PHPT) is associated with insulin resistance and an increased cardiovascular mortality. We aimed to see if parathyroidectomy improved insulin resistance. METHODS Twelve PHPT patients undergoing parathyroidectomy and ten control patients undergoing non-neck surgery were recruited to the study. Fasting venous blood samples were collected immediately pre-operatively and again at five to six weeks post-operatively. Samples were assayed for plasma glucose, serum insulin, total cholesterol, triglycerides, calcium, alkaline phosphatase, magnesium, parathyroid hormone (PTH), and haemoglobin A1c (HbA1c). Insulin resistance was calculated from fasting insulin and glucose values using Homeostasis Model Assessment (HOMA). RESULTS Parathyroidectomy decreased serum calcium (mean pre-op = 2.85 mmol/L, post-op 2.28 mmol/L, P < 0.001) and PTH concentrations (mean pre-op = 23.33 pmol/L, post-op = 10.23 pmol/L, P < 0.001) and increased phosphate concentration. However, there was no improvement in insulin resistance in the PHPT group at between 5 and 6 weeks post-operatively (geometric mean; pre-op = 0.88 (95% CI 0.59 - 1.33) vs. post-op = 0.88 (0.66 - 1.17) P = 0.95). In the control group, an increase in serum calcium was observed post-operatively (mean pre-op = 2.29 mmol/L, post-op = 2.35 mmol/L, P = 0.03). No change in insulin resistance was observed (geometric mean; pre-op = 1.37 (95% CI 0.89 - 2.11) vs. post-op = 1.38 (0.72 - 2.67) P = 0.96). CONCLUSION In summary, no significant change in insulin resistance post-parathyroidectomy in patients with PHPT was observed. This indicates that surgical treatment of PHPT does not improve insulin resistance for patients currently selected for parathyroidectomy.
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Mahmoudi T, Gourabi H, Ashrafi M, Yazdi RS, Ezabadi Z. Calciotropic hormones, insulin resistance, and the polycystic ovary syndrome. Fertil Steril 2010; 93:1208-14. [DOI: 10.1016/j.fertnstert.2008.11.031] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2008] [Revised: 11/24/2008] [Accepted: 11/26/2008] [Indexed: 10/21/2022]
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Ahlström T, Hagström E, Larsson A, Rudberg C, Lind L, Hellman P. Correlation between plasma calcium, parathyroid hormone (PTH) and the metabolic syndrome (MetS) in a community-based cohort of men and women. Clin Endocrinol (Oxf) 2009; 71:673-8. [PMID: 19250270 DOI: 10.1111/j.1365-2265.2009.03558.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
CONTEXT In recent years, an association has been noted between several abnormalities that characterize the metabolic syndrome (MetS) and primary hyperparathyroidism (pHPT). These abnormalities include dyslipidaemia, obesity, insulin resistance and hypertension. The correlations between plasma calcium, parathyroid hormone (PTH) and the variables in the MetS in a normal population are still unclear. OBJECTIVE To describe correlations between plasma calcium and PTH and the various abnormalities present in the MetS in a healthy population. DESIGN We studied 1016 healthy individuals from the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) population of 70 years old, by means of plasma analyses of calcium, PTH, creatinine, lipids, insulin and glucose, as well as by standardized blood pressure measurements. Further, body mass index (BMI) and waist circumference were determined. RESULTS The more National Cholesterol Education Program (NCEP) criteria for the MetS that were met, the higher the s-PTH and albumin-corrected s-calcium. Further, positive correlations between plasma calcium and BMI (P = 0.0003), waist circumference (P = 0.0009) and insulin resistance (P = 0.079) were found. PTH and BMI (P < 0.0001), waist circumference (P < 0.0001), systolic blood pressure (P = 0.0034), diastolic blood pressure (P = 0.0008), serum triglycerides (P = 0.0003) and insulin resistance (P = 0.0003) were positively correlated, whereas serum high density lipoproteins (HDL) (P = 0.036) and PTH were negatively correlated. CONCLUSIONS We conclude that PTH correlates with several of the metabolic factors included in the MetS within a normocalcaemic population. In addition, individuals with mild pHPT present significantly more NCEP criteria for MetS. We postulate that increased levels of PTH in pHPT may be associated with the increased cardiovascular morbidity and mortality seen in pHPT.
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Affiliation(s)
- Tommy Ahlström
- Department of Surgical Sciences, University Hospital, Uppsala, Sweden
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Tassone F, Procopio M, Gianotti L, Visconti G, Pia A, Terzolo M, Borretta G. Insulin resistance is not coupled with defective insulin secretion in primary hyperparathyroidism. Diabet Med 2009; 26:968-73. [PMID: 19900227 DOI: 10.1111/j.1464-5491.2009.02804.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS An increased frequency of both impaired glucose tolerance and Type 2 diabetes mellitus (DM) has been reported in primary hyperparathyroidism (pHPT), thus we sought to investigate insulin sensitivity and insulin secretion in a large series of pHPT patients. SUBJECTS AND METHODS One hundred and twenty-two consecutive pHPT patients without known DM were investigated [age (mean +/- sd) 59.3 +/- 13.6 years, body mass index (BMI) 25.7 +/- 4.2 kg/m(2); serum calcium 2.8 +/- 0.25 mmol/l; PTH 203.2 +/- 145.4 ng/l]. Sixty-one control subjects were matched, according to the degree of glucose tolerance, in a 2 : 1 patient:control ratio. Fasting- and oral glucose tolerance test-derived estimates of insulin sensitivity and secretion were determined by means of the quantitative insulin sensitivity check index (QUICKI) and the insulin sensitivity index (ISI) composite. RESULTS Both the QUICKI and ISI composite were lower in pHPT patients than control subjects (P < 0.03 and P < 0.05, respectively) after adjusting for age, systolic blood pressure and BMI. Conversely, all insulin secretion estimates were significantly increased in pHPT patients than in control subjects (P < 0.04 and P < 0.03, respectively) and after adjusting for age, systolic blood pressure and BMI. Log serum calcium levels were negatively associated with the QUICKI and log ISI composite (R = -0.30, P = 0.001; R = -0.23, P = 0.020, respectively) in pHPT patients. Serum calcium levels significantly and independently contributed to impaired insulin sensitivity in multivariate analysis (QUICKI as dependent variable: beta = -0.31, P = 0.004, R(2) = 0.15; log ISI composite as dependent variable: beta = -0.29, P = 0.005, R(2) = 0.16). CONCLUSIONS Our study confirms a reduction in both basal and stimulated insulin sensitivity in primary hyperparathyroidism, in spite of increased insulin secretion. Moreover, our data show for the first time a significant relationship between hypercalcaemia and insulin sensitivity in this condition.
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Affiliation(s)
- F Tassone
- Division of Endocrinology and Metabolism, Santa Croce e Carle Hospital, 12100 Cuneo, Italy.
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42
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Chang E, Donkin SS, Teegarden D. Parathyroid hormone suppresses insulin signaling in adipocytes. Mol Cell Endocrinol 2009; 307:77-82. [PMID: 19524129 PMCID: PMC2714196 DOI: 10.1016/j.mce.2009.03.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Revised: 03/16/2009] [Accepted: 03/17/2009] [Indexed: 10/20/2022]
Abstract
Previous reports suggest that parathyroid hormone (PTH) is associated with insulin resistance. This research investigated the effects of PTH on insulin signaling in differentiated 3T3-L1 adipocytes. PTH (10 nM, 24 h) treatment induced a reduction in insulin-stimulated glucose uptake, AKT activity (phosphorylated AKT/total AKT protein expression) and a decrease in GLUT4 and IRS-1 protein expression compared to vehicle treated controls in differentiated adipocytes. PTH treatment also induced increased phosphorylation of IRS-1 on serine 307, which suppresses insulin signaling. In addition, treatment of cells with adenyl cyclase inhibitor SQ52236 ameliorated the effects of PTH on insulin-stimulated glucose uptake, whereas inhibition of phospholipase C alpha (U73122) did not significantly alter the effects of PTH. Thus, PTH treatment of differentiated 3T3-L1 adipocytes suppresses insulin-stimulated glucose uptake and insulin signaling via cAMP pathway, potentially through the phosphorylation of IRS-1 at serine 307.
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Affiliation(s)
| | | | - Dorothy Teegarden
- Corresponding Author: Dorothy Teegarden, PhD, 700 W. State St., West Lafayette IN 47907, 765-494-8246, FAX: 765-494-0906,
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Abstract
The growing incidence of prediabetes and clinical type 2 diabetes, in part characterised by insulin resistance, is a critical health problem with consequent devastating personal and health-care costs. Vitamin D status, assessed by serum 25-hydroxyvitamin D levels, is inversely associated with diabetes in epidemiological studies. Several clinical intervention studies also support that vitamin D, or its active metabolite 1,25-dihydroxyvitamin D (1,25(OH)2D), improves insulin sensitivity, even in subjects with glucose metabolism parameters classified within normal ranges. The mechanisms proposed which may underlie this effect include potential relationships with improvements in lean mass, regulation of insulin release, altered insulin receptor expression and specific effects on insulin action. These actions may be mediated by systemic or local production of 1,25(OH)2D or by suppression of parathyroid hormone, which may function to negatively affect insulin sensitivity. Thus, substantial evidence supports a relationship between vitamin D status and insulin sensitivity; however, the underlying mechanisms require further exploration.
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Poor vitamin D status may contribute to high risk for insulin resistance, obesity, and cardiovascular disease in Asian Indians. Med Hypotheses 2009; 72:647-51. [DOI: 10.1016/j.mehy.2008.12.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Accepted: 12/10/2008] [Indexed: 11/24/2022]
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Vitamin D, the renin-angiotensin system, and insulin resistance. Int Urol Nephrol 2008; 40:419-26. [PMID: 18193490 DOI: 10.1007/s11255-007-9244-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2007] [Accepted: 05/22/2007] [Indexed: 12/16/2022]
Abstract
Insulin resistance is characterized by the systemic impairment of insulin action and is usually the result of aging, obesity, chronic inflammation, or another factor that may contribute to the inhibition of the insulin signaling pathway. Insulin resistance is accompanied by defects in lipid metabolism and blood coagulation, hypertension, obesity, and vascular inflammation in a syndrome called syndrome X or metabolic syndrome. Metabolic syndrome is involved in the development of atherosclerosis with consequent cardiovascular complications including acute myocardial infarction, stroke, and vascular disease. Recent data have shown that vitamin D acts as a negative regulator of the renin gene and that vitamin D deficiency is followed by increased renin-angiotensin II expression. The link between the insulin signaling pathway/insulin resistance and the renin-angiotensin system has been well documented in previous studies. The present review focuses on disorders characterized by a reduction in vitamin D concentration or its receptor function and the development of insulin resistance or metabolic syndrome, and discusses also possible therapeutic interventions.
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Tai K, Need AG, Horowitz M, Chapman IM. Vitamin D, glucose, insulin, and insulin sensitivity. Nutrition 2008; 24:279-85. [PMID: 18187309 DOI: 10.1016/j.nut.2007.11.006] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Revised: 11/07/2007] [Accepted: 11/22/2007] [Indexed: 02/07/2023]
Abstract
This review examines available evidence of links between abnormalities of glucose and insulin metabolism and vitamin D deficiency. Possible mechanisms of action of vitamin D include stimulation of insulin secretion and effects on insulin sensitivity. Sun exposure usually implies greater outdoor physical activity, which in itself may have beneficial effects on insulin sensitivity, unrelated to serum 25-hydroxyvitamin D concentrations. The observed associations in humans among vitamin D, insulin, and glucose metabolism have not yet been confirmed by intervention studies and, hence, a causal association has not been established. Clinical trials are needed to determine whether vitamin D treatment of vitamin D-deficient individuals is able to prevent or treat diabetes mellitus.
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Affiliation(s)
- Kamilia Tai
- University of Adelaide Department of Medicine, Royal Adelaide Hospital, Adelaide, Australia.
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Siilin H, Rastad J, Ljunggren O, Lundgren E. Disturbances of calcium homeostasis consistent with mild primary hyperparathyroidism in premenopausal women and associated morbidity. J Clin Endocrinol Metab 2008; 93:47-53. [PMID: 18042652 DOI: 10.1210/jc.2007-0600] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
CONTEXT Primary hyperparathyroidism (PHPT) and associated morbidity are comprehensively assessed in elderly females; however, less is known of the disease in younger women. OBJECTIVES Our objectives were to estimate the prevalence of mild disturbances in calcium homeostasis, which could be analogous with early PHPT, in a premenopausal population, and determine the potential presence of associated morbidity. DESIGN Initial results from this longitudinal study are from 2002-2004. SETTING We conducted a population-based screening of serum (s)-calcium in conjunction with routine mammography. PARTICIPANTS Participants included premenopausal women, 40-50 yr of age (n = 1900). Cases fulfilling previously evaluated biochemical criteria for PHPT (n=214) were matched to controls (n = 214). MAIN OUTCOME MEASUREMENTS All participants underwent investigation, including screening of parameters of calcium homeostasis, dual x-ray absorptiometry, and body mass index assessment, and filled out extensive health and quality of life (SF-36) questionnaires. Participants were divided into four groups depending on the relation between s-calcium/intact PTH. Statistical comparisons between cases and controls as well as among the four groups were performed to evaluate morbidity. RESULTS The prevalence of assumed mild PHPT, i.e. inappropriate intact PTH value in relation to total s-calcium, was estimated to be 5.1% (n = 96). Women with mild disturbances in calcium homeostasis had statistically significant lower bone mineral density in the proximal femur and femoral neck, higher body mass index, and lower scores for vitality and general health in the analysis of SF-36. CONCLUSIONS Mild disturbances in calcium homeostasis in premenopausal women were more prevalent than previously thought and were associated with obesity, lower bone mineral density, and decreased quality of life.
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Affiliation(s)
- Helene Siilin
- Department of Surgery, University Hospital, S-751 85 Uppsala, Sweden.
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Baykan M, Erem C, Erdogan T, Ersöz HO, Gedikli O, Korkmaz L, Kücükosmanoglu M, Haclhasanoglu A, Kaplan S, Celik S. Assessment of left ventricular diastolic function and the Tei index by tissue Doppler imaging in patients with primary hyperparathyroidism. Clin Endocrinol (Oxf) 2007; 66:483-8. [PMID: 17371463 DOI: 10.1111/j.1365-2265.2007.02756.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The aim of this study was to assess left ventricular (LV) systolic and diastolic function and myocardial performance (the Tei index) by tissue Doppler imaging (TDI) in patients with primary hyperparathyroidism (PHPT). METHODS We prospectively evaluated 21 patients with PHPT [nine women, 12 men; aged 50 +/- 11 years, serum calcium 2.9 +/- 0.17 mmol/l, intact PTH (iPTH) 51.5 +/- 52.1 pmol/l] and 27 healthy control subjects (13 women, 14 men; aged 49 +/- 10 years, serum calcium 2.35 +/- 0.12 mol/l, iPTH 2.9 +/- 0.9 pmol/l). LV systolic and diastolic function was assessed by conventional echocardiography and by TDI. Early diastolic (Em), late diastolic (Am) and peak systolic (Sm) mitral annular velocities, the ratio Em/Am and the Tei index were calculated from TDI measurements. Mitral inflow velocities, colour M-mode flow propagation velocity (Vp), relative wall thickness (RWT) and LV mass index (LVMI) were assessed by two-dimensional echocardiography. RESULTS Em and Em/Am were lower in patients with PHPT than in healthy controls (11.2 +/- 1.5 cm/s vs. 13.5 +/- 2.5 cm/s, P = 0.005; 0.94 +/- 0.27 vs. 1.36 +/- 0.44, P = 0.02, respectively). In patients with PHPT, the Tei index was significantly higher than that in controls (0.45 +/- 13.6 vs. 0.33 +/- 8.1, P = 0.02). Peak (E) velocity and the ratio of E to peak late (A) velocity (E/A) were lower in those with PHPT than in those without (59 +/- 15 cm/s vs. 72 +/- 19 cm/s, P = 0.02; 0.8 +/- 0.15 vs. 1.1 +/- 0.33, P = 0.001, respectively). Patients with PHPT had significantly higher RWT (0.50 +/- 0.02 cm vs. 0.41 +/- 0.02 cm, P = 0.0001), isovolumetric relaxation time (IVRT) (115 +/- 13 ms vs. 103 +/- 11 ms P = 0.04) and A velocity (79 +/- 16 cm/s vs. 68 +/- 13 cm/s P = 0.05) than controls. Vp was lower in PHPT patients than in healthy subjects (42 +/- 9.98 cm/s vs. 54 +/- 19.01 cm/s P = 0.04). There were no significant differences between the two groups regarding LV end-diastolic and end-systolic dimensions, LVMI, deceleration time of the mitral E wave, Am and Sm. CONCLUSION TDI analysis of mitral annular velocities, Em/Am and the Tei index is useful for assessing LV diastolic dysfunction in patients with PHPT. The parameters obtained from the lateral mitral annulus by TDI can be used for the identification of LV diastolic dysfunction in PHPT patients.
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MESH Headings
- Adult
- Chi-Square Distribution
- Diastole
- Echocardiography, Doppler
- Echocardiography, Doppler, Color
- Echocardiography, Doppler, Pulsed
- Female
- Heart/physiopathology
- Humans
- Hyperparathyroidism, Primary/complications
- Hyperparathyroidism, Primary/diagnostic imaging
- Hyperparathyroidism, Primary/physiopathology
- Male
- Middle Aged
- Myocardial Contraction
- Sensitivity and Specificity
- Stroke Volume
- Ventricular Dysfunction, Left/complications
- Ventricular Dysfunction, Left/diagnostic imaging
- Ventricular Dysfunction, Left/physiopathology
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Affiliation(s)
- Merih Baykan
- Department of Cardiology, Division of Endocrinology and Metabolism, KTU Faculty of Medicine, Trabzon, Turkey.
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Ybarra J, Doñate T, Jurado J, Pou JM. Primary hyperparathyroidism, insulin resistance, and cardiovascular disease: a review. Nurs Clin North Am 2007; 42:79-85, vii. [PMID: 17270592 DOI: 10.1016/j.cnur.2006.11.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The presentation of primary hyperthyroidism (PHPT) has changed substantially in the last decade. Before the introduction of routine calcium measurement in most automated biochemistry serum analyzers, it usually was diagnosed after renal and bony lesions already were present. Nowadays, its presentation is practically asymptomatic. Nevertheless, the cardiovascular morbidity and mortality of mild to moderate forms of PHPT reportedly are increasing. Individuals who have mild to moderate forms of PHPT have an increased risk for enduring cardiovascular disease, arterial hypertension, left ventricular hypertrophy, myocardial and valvular calcifications, altered vascular reactivity, and cardiac conduction. Finally, they also reveal alterations in carbohydrate metabolism, insulin resistance, dyslipidemia, and body composition.
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Affiliation(s)
- Juan Ybarra
- Servicio de Endocrinología y Nutrición, Hospital de Sant Pau, Mas Casanovas 90, Barcelona 08041, Spain.
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50
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Hagström E, Hellman P, Lundgren E, Lind L, Arnlöv J. Serum calcium is independently associated with insulin sensitivity measured with euglycaemic-hyperinsulinaemic clamp in a community-based cohort. Diabetologia 2007; 50:317-24. [PMID: 17180664 DOI: 10.1007/s00125-006-0532-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Accepted: 09/17/2006] [Indexed: 10/23/2022]
Abstract
AIMS/HYPOTHESIS Diabetes mellitus type 2 is associated with altered calcium metabolism. Moreover, in diseases with supranormal serum calcium levels, such as primary hyperparathyroidism, the prevalence of diabetes is increased. Relatively little is known about the relationship between serum calcium concentration and the underlying causes of diabetes-insulin resistance and defective insulin secretion-in the normocalcaemic general population. MATERIALS AND METHODS We investigated associations between serum calcium concentration and insulin sensitivity and secretion in a population-based cohort of elderly men (Uppsala Longitudinal Study of Adult Men, n = 961). Insulin sensitivity index (M/I; glucose disposal rate [M] divided by mean insulin concentration [I]) was assessed using euglycaemic-hyperinsulinaemic clamp, and insulin secretion was estimated from the early insulin response (EIR) during an OGTT. RESULTS In a multivariable linear regression model adjusting for BMI, physical activity, smoking, consumption of tea, alcohol, coffee and dietary calcium, serum phosphate and serum creatinine, 1 SD increase in serum calcium was associated with 0.17 mg kg(-1) min(-1) (mU/l)(-1) x 100 (0.024 mg kg(-1) min(-1) [pmol/l](-1) x 100) decrease in M/I (p = 0.01). The results remained robust in individuals with normal fasting glucose, normal glucose tolerance and serum calcium within the normal range (n = 413, regression coefficient for 1 SD increase -0.45, p = 0.001). Serum calcium was not associated with EIR. Dietary intake of calcium was not independently associated with insulin sensitivity or EIR. CONCLUSION/INTERPRETATION Our data support the notion that endogenous calcium may be involved early in the development of diabetes and that this effect is mediated mainly through effects on insulin sensitivity rather than defective insulin secretion. Dietary intake of calcium does not seem to influence insulin sensitivity.
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Affiliation(s)
- E Hagström
- Department of Surgical Sciences, Uppsala University, SE-751 85, Uppsala, Sweden.
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