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Piťhová P, Cichrová M, Kvapil M, Hubáček JA, Dlouhá D, Piťha J. Determinants of vascular impairment in type 1 diabetes-impact of sex and connexin 37 gene polymorphism: A cross-sectional study. Cardiovasc Diabetol 2024; 23:309. [PMID: 39175027 PMCID: PMC11342627 DOI: 10.1186/s12933-024-02401-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Accepted: 08/09/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND The associations of risk factors with vascular impairment in type 1 diabetes patients seem more complex than that in type 2 diabetes patients. Therefore, we analyzed the associations between traditional and novel cardiovascular risk factors and vascular parameters in individuals with T1D and modifications of these associations according to sex and genetic factors. METHODS In a cross-sectional study, we analyzed the association of risk factors in T1D individuals younger than 65 years using vascular parameters, such as ankle brachial index (ABI) and toe brachial index (TBI), duplex ultrasound, measuring the presence of plaques in carotid and femoral arteries (Belcaro score) and intima media thickness of carotid arteries (CIMT). We also used photoplethysmography, which measured the interbranch index expressed as the Oliva-Roztocil index (ORI), and analyzed renal parameters, such as urine albumin/creatinine ratio (uACR) and glomerular filtration rate (GFR). We evaluated these associations using multivariate regression analysis, including interactions with sex and the gene for connexin 37 (Cx37) polymorphism (rs1764391). RESULTS In 235 men and 227 women (mean age 43.6 ± 13.6 years; mean duration of diabetes 22.1 ± 11.3 years), pulse pressure was strongly associated with unfavorable values of most of the vascular parameters under study (ABI, TBI, Belcaro scores, uACR and ORI), whereas plasma lipids, represented by remnant cholesterol (cholesterol - LDL-HDL cholesterol), the atherogenic index of plasma (log (triglycerides/HDL cholesterol) and Lp(a), were associated primarily with renal impairment (uACR, GFR and lipoprotein (a)). Plasma non-HDL cholesterol was not associated with any vascular parameter under study. In contrast to pulse pressure, the associations of lipid factors with kidney and vascular parameters were modified by sex and the Cx37 gene. CONCLUSION In addition to known information, easily obtainable risk factor, such as pulse pressure, should be considered in individuals with T1D irrespective of sex and genetic background. The associations of plasma lipids with kidney function are complex and associated with sex and genetic factors. The decision of whether pulse pressure, remnant lipoproteins, Lp(a) and other determinants of vascular damage should become treatment targets in T1D should be based on the results of future clinical trials.
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Affiliation(s)
- Pavlína Piťhová
- Department of Geriatric Internal Medicine, 2nd Medical Faculty Motol, Prague, Czech Republic
| | - Michaela Cichrová
- Faculty of Mathematics and Physics, Charles University in Prague, Prague, Czech Republic
- Institute of Computer Science, Czech Academy of Sciences, Prague, Czech Republic
| | - Milan Kvapil
- Department of Geriatric Internal Medicine, 2nd Medical Faculty Motol, Prague, Czech Republic
| | - Jaroslav A Hubáček
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Dana Dlouhá
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Jan Piťha
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
- Department of Cardiology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
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Vergès B. Cardiovascular disease in type 1 diabetes, an underestimated danger: Epidemiological and pathophysiological data. Atherosclerosis 2024; 394:117158. [PMID: 37369617 DOI: 10.1016/j.atherosclerosis.2023.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023]
Abstract
Cardiovascular disease (CV) is a common complication of type 1 diabetes (T1D) and a leading cause of death. T1D patients are more likely to develop CV disease (CVD) early in life and show a reduction of life expectancy of at least 11 years. Patients with a young age of T1D onset have a substantially higher CV risk. The reasons for increased atherosclerosis in T1D patients are not entirely explained. In addition to the typical CV risk factors, long-term hyperglycemia has a significant impact by inducing oxidative stress, vascular inflammation, monocyte adhesion, arterial wall thickening and endothelial dysfunction. Additionally, CVD in T1D is also associated with nephropathy. However, CVD risk is still significantly increased in T1D patients, in good glycemic control without additional CV risk factors, indicating the involvement of supplementary potential factors. By increasing oxidative stress, vascular inflammation, and endothelial dysfunction, hypoglycemia and glucose variability may exacerbate CVD. Moreover, significant qualitative and functional abnormalities of lipoproteins are present in even well-controlled T1D patients and are likely to play a role in the development of atherosclerosis and the promotion of CVD. According to recent research, immune system dysfunction, which is typical of auto-immune T1D, may also promote CVD, likely via inflammatory pathways. In addition, T1D patients who are overweight or obese exhibit an additional CV risk due to pathophysiological mechanisms that are similar to those seen in T2D.
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Affiliation(s)
- Bruno Vergès
- Endocrinology-Diabetology Department, University-Hospital of Dijon, Dijon, France; INSERM LNC-UMR1231, Medicine University, 21000 Dijon, France; Service Endocrinologie, Diabétologie et Maladies Métaboliques, CHU-Dijon, 14 rue Gaffarel, F-21000 Dijon, France.
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Priyadarsini N, Likhitha D, Ramachandran M, Behera KK. Impaired Cardiovagal Activity as a Link Between Hyperglycemia and Arterial Stiffness in Adults With Type 2 Diabetes Mellitus Among an Eastern Indian Population: A Cross-sectional Study. Can J Diabetes 2024; 48:147-154. [PMID: 38142036 DOI: 10.1016/j.jcjd.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/27/2023] [Accepted: 12/12/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVES Cardiac autonomic neuropathy (CAN) is one of the most common yet overlooked complications of type 2 diabetes mellitus (T2DM). Individuals with T2DM with CAN have a 5-fold higher rate of cardiovascular morbidity and mortality. The presence of CAN in T2DM could potentially lead to arterial stiffness. However, only sparse data are available suggesting any association between autonomic dysfunction and arterial stiffness in T2DM. METHODS We recruited 80 people with T2DM and 74 healthy controls for our study. Heart rate variability (HRV) testing was performed to assess autonomic function. Assessment of arterial stiffness was done by measuring the brachial pulse wave velocity (baPWV) and augmentation index (AI). RESULTS The time-domain parameters were significantly decreased (p<0.001) and frequency-domain parameters, such as total power and high-frequency band expressed as a normalized unit, were found to be significantly reduced in people with T2DM (p<0.001). Both baPWV and AI were significantly higher in people with T2DM compared with healthy controls (p<0.001). We observed a moderate correlation between standard deviation of normal to normal interval (SDNN) and baPWV (r=-0.437, p=0.002) and AI (r=-0.403, p=0.002). A multiple linear regression model showed an association between SDNN and arterial stiffness parameters, such as baPWV and AI, which were statistically significant (p<0.05) in a fully adjusted model that included the conventional risk factors for atherosclerosis. CONCLUSIONS Impaired cardiovagal activity is an independent risk factor for the development of arterial stiffness. Incorporation of HRV testing into the diabetes management protocol would have potential benefits for identifying individuals at high risk of developing cardiovascular events. Hence, preventive measures can be taken as early as possible to improve patient outcomes.
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Affiliation(s)
- Nibedita Priyadarsini
- Department of Physiology, All India Institute of Medical Sciences, Bhubaneswar, India
| | - Devineni Likhitha
- Department of Physiology, All India Institute of Medical Sciences, Bhubaneswar, India
| | | | - Kishore Kumar Behera
- Department of Endocrinology, All India Institute of Medical Sciences, Bhubaneswar, India
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Pesantez M, Ebekozien O, Vendrame F. Type 1 Diabetes and Cardiovascular Health. Endocrinol Metab Clin North Am 2024; 53:151-163. [PMID: 38272593 DOI: 10.1016/j.ecl.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Type 1 diabetes (T1D) is associated with an increased risk of cardiovascular disease (CVD). CVD occurs much earlier in people with T1D than in the general population, and several risk factors have been identified some of which are modifiable. Risk prediction models and imaging tests to detect early signs of CVD have not been extensively validated. Strategies to promote cardiovascular health (CVH) in T1D include identifying risk factors, early treatment to achieve CVH targets, and improving the education of health care providers and people with T1D.
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Affiliation(s)
- Maria Pesantez
- Jackson Memorial Hospital, 1450 Northwest 10 Avenue, Miami, FL 33136, USA
| | - Osagie Ebekozien
- T1D Exchange, 101 Federal Street Suite 440, Boston, MA 02110, USA
| | - Francesco Vendrame
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Miami Miller School of Medicine, 1450 Northwest 10 Avenue, Room 1086, Miami, FL 33136, USA.
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Dei Cas A, Aldigeri R, Mantovani A, Masulli M, Palmisano L, Cavalot F, Bonomo K, Baroni MG, Cossu E, Cavallo G, Cimini FA, Buzzetti R, Mignogna C, Leonetti F, Bacci S, Trevisan R, Morieri ML, Pollis RM, Targher G, Vigili de Kreutzenberg S. Sex Differences in Cardiovascular Disease and Cardiovascular Risk Estimation in Patients With Type 1 Diabetes. J Clin Endocrinol Metab 2023; 108:e789-e798. [PMID: 36881927 DOI: 10.1210/clinem/dgad127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023]
Abstract
CONTEXT Patients with type 1 diabetes (T1D) have higher cardiovascular disease (CVD) risk than the general population. OBJECTIVE This observational study aims to evaluate sex-related differences in CVD prevalence and CVD risk estimates in a large cohort of T1D adults. METHODS We conducted a multicenter, cross-sectional study involving 2041 patients with T1D (mean age 46 years; 44.9% women). In patients without pre-existing CVD (primary prevention), we used the Steno type 1 risk engine to estimate the 10-year risk of developing CVD events. RESULTS CVD prevalence (n = 116) was higher in men than in women aged ≥55 years (19.2 vs 12.8%, P = .036), but comparable between the 2 sexes in those aged <55 years (P = .91). In patients without pre-existing CVD (n = 1925), mean 10-year estimated CVD risk was 15.4 ± 0.4% without any significant sex difference. However, stratifying this patient group by age, the 10-year estimated CVD risk was significantly higher in men than in women until age 55 years (P < .001), but this risk equalized after this age. Carotid artery plaque burden was significantly associated with age ≥55 years and with a medium and high 10-year estimated CVD risk, without any significant sex difference. Diabetic retinopathy and sensory-motor neuropathy were also associated with higher 10-year CVD risk and female sex. CONCLUSION Both men and women with T1D are at high CVD risk. The 10-year estimated CVD risk was higher in men aged <55 years than in women of similar age, but these sex differences disappeared at age ≥55 years, suggesting that female sex was no longer protective.
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Affiliation(s)
- Alessandra Dei Cas
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
- Division of Nutritional and Metabolic Sciences, Azienda Ospedaliero-Universitaria di Parma, 43126 Parma, Italy
| | - Raffaella Aldigeri
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Alessandro Mantovani
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Verona, 37124 Verona, Italy
| | - Maria Masulli
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| | - Luisa Palmisano
- Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
| | - Franco Cavalot
- Diabetes and Metabolic Diseases Unit, San Luigi Gonzaga University Hospital, 10043 Turin, Italy
| | - Katia Bonomo
- Diabetes and Metabolic Diseases Unit, San Luigi Gonzaga University Hospital, 10043 Turin, Italy
| | - Marco Giorgio Baroni
- Department of Clinical Medicine, Life, Health & Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
- Neuroendocrinology and Metabolic Diseases, IRCCS Neuromed, 86077 Pozzilli, Italy
| | - Efisio Cossu
- Unit of Diabetology, Policlinico Universitario of Cagliari, 09124 Cagliari, Italy
| | - Gisella Cavallo
- Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy
| | | | - Raffaella Buzzetti
- Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy
| | - Carmen Mignogna
- Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy
| | - Frida Leonetti
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, 00185 Rome, Italy
| | - Simonetta Bacci
- Section of Endocrinology, Department of Medicine, IRCCS, Casa Sollievo della Sofferenza Hospital, 71013 San Giovanni Rotondo (FG), Italy
| | - Roberto Trevisan
- Department of Medicine and Surgery, University of Milan Bicocca, 20126 Milan, Italy
| | - Mario Luca Morieri
- Metabolic Diseases, Department of Medicine, University of Padua, 35128 Padua, Italy
| | | | - Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Verona, 37124 Verona, Italy
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Rasool DA, Ismail HJ, Yaba SP. Fully automatic carotid arterial stiffness assessment from ultrasound videos based on machine learning. Phys Eng Sci Med 2023; 46:151-164. [PMID: 36787022 DOI: 10.1007/s13246-022-01206-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/01/2022] [Indexed: 02/15/2023]
Abstract
Arterial stiffness (AS) refers to the loss of arterial compliance and alterations in vessel wall properties. The study of local carotid stiffness (CS) is particularly important since carotid artery stiffening raises the risk of stroke, cognitive impairment, and dementia. So, stiffness measurement as a screening tool approach is crucial because it can reduce mortality and facilitate therapy planning. This study aims to evaluate the stiffness of the CCA using machine learning (ML) through the features of diameter change (ΔD) and stiffness parameters. This study was conducted in seven stages: data collection, preprocessing, CCA segmentation, CCA lumen diameter (DCCA) computing during cardiac cycles, denoising signals of DCCA, computational of AS parameters, and stiffness assessment using ML. The 51 videos (with 25 s) of CCA B-mode ultrasound (US) were used and analyzed. Each US video yielded approximately 750 sequential frames spanning about 24 cardiac cycles. Firstly, US preset settings with time gain compensation with a U-pattern were employed to enhance CCA segmentations. The study showed that auto region-growing, employed three times, is appropriate for segmenting walls with a short running time (4.56 s/frame). The diameter computed for frames constructs a signal (diameter signal) with noisy parts in the shape of peak variance and an un-smooth side. Among the 12 employed smoothing methods, spline fitting with a mean peak difference per cycle (MPDCY) of 0.58 pixels was the most effective for the diameter signal. The authors propose the MPDCY as a new selection criterion for smoothing methods with highly preserved peaks. The ΔD (Dsys-Ddia) determined in this study was validated by statistical analysis as a viable replacement for manual ΔD measurement. Statistical analysis was carried out by Mann-Whitney t-test with a p-value of 0.81, regression line R2 = 0.907, and there was no difference in means between the two groups for box plots. The stiffness parameters of the carotid arteries were calculated based on auto-ΔD and pulse pressure. Five ML models, including K-nearest neighbor (KNN), support vector machine (SVM), decision tree (DT), logistic regression (LR), and random forest (RF), fed by distension (ΔD) and five stiffness parameters, were used to distinguish between the stiffened and un-stiffened CCA. Except for SVM, all models performed excellently in terms of specificity, sensitivity, precision, and area under the curve (AUC). In addition, the scatterplot and statistical analysis of the fed features confirm these remarkable outcomes. The scatter plot demonstrates that a linear hyperline can easily distinguish between the two classes. The statistical analysis shows that the stiffness parameters computed from the database of this work were statistically (p < 0.05) distributed into the non-stiffness and stiffness groups. The presented models are validated by applying them to additional datasets. Applying models to other datasets reveals a model performance of 100%. The proposed ML models could be applied in clinical practice to detect CS early, which is essential for preventing stroke.
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Vainer BG. Radial artery pulse wave velocity: a new characterization technique and the instabilities associated with the respiratory phase and breath-holding. Physiol Meas 2023; 44. [PMID: 36657177 DOI: 10.1088/1361-6579/acb4dd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 01/19/2023] [Indexed: 01/20/2023]
Abstract
Objective. Pulse wave velocity (PWV) is a key diagnostic parameter of the cardiovascular system's state. However, approaches aimed at PWV characterization often suffer from inevitable drawbacks. Statistical results demonstrating how closely PWV in the radial artery (RA) and the respiration phase correlate, as well as RA PWV evolution during breath-holding (BH), have not yet been presented in the literature. The aims of this study are (a) to propose a simple robust technique for measuring RA PWV, (b) to reveal the phase relation between the RA PWV and spontaneous breathing, and (c) to disclose the influence of BH on the RA PWV.Approach.The high-resolution remote breathing monitoring method Sorption-Enhanced Infrared Thermography (SEIRT) and the new technique aimed at measuring RA PWV described in this paper were used synchronously, and their measurement data were processed simultaneously.Main results. Spontaneous breathing leaves a synchronous 'trace' on the RA PWV. The close linear correlation of the respiration phase and the phase of concomitant RA PWV changes is statistically confirmed in five tested people (Pearson's r is of the order of 0.5-0.8, P < 0.05). The BH appreciably affects the RA PWV. A phenomenon showing that the RA PWV is not indifferent to hypoxia is observed for the first time.Significance.The proposed technique for RA PWV characterization has high prospects in biomedical diagnostics. The presented pilot study deserves attention in the context of the mutual interplay between respiratory and cardiovascular systems. It may also be useful in cases where peripheral pulse wave propagation helps assess respiratory function.
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Affiliation(s)
- Boris G Vainer
- Novosibirsk State University, Novosibirsk, Russia.,Rzhanov Institute of Semiconductor Physics SB RAS, Novosibirsk, Russia
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Helleputte S, Calders P, Rodenbach A, Marlier J, Verroken C, De Backer T, Lapauw B. Time-varying parameters of glycemic control and glycation in relation to arterial stiffness in patients with type 1 diabetes. Cardiovasc Diabetol 2022; 21:277. [PMID: 36494687 PMCID: PMC9737749 DOI: 10.1186/s12933-022-01717-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND A substantial proportion of type 1 diabetes (T1D) patients free from known cardiovascular disease (CVD) show premature arterial stiffening, with age, blood pressure, and HbA1c-as gold standard of glycemic control-as main predictors. However, the relationship of arterial stiffness with other time-varying parameters of glycemic control and glycation has been far less explored. This study investigated the relationship of arterial stiffness with several short- and long-term parameters of glycemic control and glycation in patients with T1D, such as advanced glycation end-products (AGEs) and continuous glucose monitoring (CGM)-derived parameters. METHODS Cross-sectional study at a tertiary care centre including 54 patients with T1D free from known CVD. Arterial stiffness was assessed with carotid-femoral pulse wave velocity (cf-PWV). Current level and 10-year history of HbA1c were evaluated, and skin AGEs, urinary AGEs, and serum soluble AGE-receptor (sRAGE) concentrations. CGM for 7 days was used to determine time in range, time in hyper- and hypoglycemia, and glycemic variability. RESULTS Cf-PWV was associated with current HbA1c (rs = + 0.28), mean 10-years HbA1c (rs = + 0.36), skin AGEs (rs = + 0.40) and the skin AGEs-to-sRAGE ratio (rs = + 0.40), but not with urinary AGE or serum sRAGE concentrations; and not with any of the CGM-parameters. Multiple linear regression for cf-PWV showed that the model with the best fit included age, T1D duration, 24-h mean arterial pressure and mean 10-years HbA1c (adjusted R2 = 0.645, p < 0.001). CONCLUSIONS Longer-term glycemic exposure as reflected by current and mean 10-years HbA1c is a key predictor of arterial stiffness in patients with T1D, while no relationship was found with any of the short-term CGM parameters. Our findings stress the importance of early and sustained good glycemic control to prevent premature CVD in patients with T1D and suggest that HbA1c should continue to be used in the risk assessment for diabetic complications. The role of skin glycation, as a biomarker for vascular aging, in the risk assessment for CVD is an interesting avenue for further research.
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Affiliation(s)
- Simon Helleputte
- grid.5342.00000 0001 2069 7798Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium ,grid.434261.60000 0000 8597 7208Fonds Wetenschappelijk Onderzoek (FWO) Vlaanderen, Ghent, Belgium
| | - Patrick Calders
- grid.5342.00000 0001 2069 7798Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Arthur Rodenbach
- grid.5342.00000 0001 2069 7798Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - Joke Marlier
- grid.410566.00000 0004 0626 3303Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Charlotte Verroken
- grid.410566.00000 0004 0626 3303Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Tine De Backer
- grid.5342.00000 0001 2069 7798Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium ,grid.410566.00000 0004 0626 3303Department of Cardiology, Ghent University Hospital, Ghent, Belgium
| | - Bruno Lapauw
- grid.5342.00000 0001 2069 7798Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium ,grid.410566.00000 0004 0626 3303Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
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