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Charlotte Janus Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Danish Diabetes Academy, Odense University Hospital, Odense, Denmark

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Dorte Vistisen Steno Diabetes Center Copenhagen, Gentofte, Denmark

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Hanan Amadid Steno Diabetes Center Copenhagen, Gentofte, Denmark
Department of Public Health, Research Unit of Epidemiology, Aarhus University, Aarhus, Denmark

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Daniel R Witte Danish Diabetes Academy, Odense University Hospital, Odense, Denmark
Department of Public Health, Research Unit of Epidemiology, Aarhus University, Aarhus, Denmark
Steno Diabetes Center Aarhus, Aarhus, Denmark

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Torsten Lauritzen Department of Public Health, Research Unit of Epidemiology, Aarhus University, Aarhus, Denmark

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Søren Brage MRC Epidemiology Unit, University of Cambridge, Cambridge, UK

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Anne-Louise Bjerregaard Department of Public Health, Research Unit of Epidemiology, Aarhus University, Aarhus, Denmark

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Torben Hansen Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark

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Jens J Holst Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark

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Marit E Jørgensen Steno Diabetes Center Copenhagen, Gentofte, Denmark
National Institute of Public Health, University of Southern Denmark, Odense, Denmark

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Oluf Pedersen Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark

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Kristine Færch Steno Diabetes Center Copenhagen, Gentofte, Denmark

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Signe S Torekov Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark

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Rationale

The hormone glucagon-like peptide-1 (GLP-1) decreases blood glucose and appetite. Greater physical activity (PA) is associated with lower incidence of type 2 diabetes. While acute exercise may increase glucose-induced response of GLP-1, it is unknown how habitual PA affects GLP-1 secretion. We hypothesised that habitual PA associates with greater glucose-induced GLP-1 responses in overweight individuals.

Methods

Cross-sectional analysis of habitual PA levels and GLP-1 concentrations in 1326 individuals (mean (s.d.) age 66 (7) years, BMI 27.1 (4.5) kg/m2) from the ADDITION-PRO cohort. Fasting and oral glucose-stimulated GLP-1 responses were measured using validated radioimmunoassay. PA was measured using 7-day combined accelerometry and heart rate monitoring. From this, energy expenditure (PAEE; kJ/kg/day) and fractions of time spent in activity intensities (h/day) were calculated. Cardiorespiratory fitness (CRF; mL O2/kg/min) was calculated using step tests. Age-, BMI- and insulin sensitivity-adjusted associations between PA and GLP-1, stratified by sex, were evaluated by linear regression analysis.

Results

In 703 men, fasting GLP-1 concentrations were 20% lower (95% CI: −33; −3%, P = 0.02) for every hour of moderate-intensity PA performed. Higher CRF and PAEE were associated with 1–2% lower fasting GLP-1 (P = 0.01). For every hour of moderate-intensity PA, the glucose-stimulated GLP-1 response was 16% greater at peak 30 min (1; 33%, P rAUC0-30 = 0.04) and 20% greater at full response (3; 40%, P rAUC0-120 = 0.02). No associations were found in women who performed PA 22 min/day vs 32 min/day for men.

Conclusion

Moderate-intensity PA is associated with lower fasting and greater glucose-induced GLP-1 responses in overweight men, possibly contributing to improved glucose and appetite regulation with increased habitual PA.

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Po-Chung Cheng Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan

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Chia-Hung Kao Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan

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Objective

Coronary heart disease (CHD) is a prevalent complication of type 2 diabetes mellitus (T2DM). The proatherogenic low-density lipoprotein (LDL) cholesterol is an established risk factor of cardiovascular disease, and evidence also suggests that postprandial plasma glucose (PPG) levels closely delineate CHD mortality in diabetes. The investigators hypothesized that the addition of telehealth consultation to standard antidiabetic therapy may help to reduce postprandial glucose variability and plasma LDL cholesterol levels in patients with T2DM.

Methods

This cross-sectional study enrolled patients with newly diagnosed T2DM who received standard antidiabetic therapy with or without additional telehealth consultation. Participants received blood tests for plasma lipid profile and glucose levels at the diagnosis of diabetes and after 1 month of therapeutic intervention. Laboratory results were compared between treatment groups to determine the efficacy of complementary telehealth consultation.

Results

In this study, 375 participants were enrolled. The standard treatment group had considerably greater levels of plasma LDL cholesterol than recipients of telehealth consultation (110 mg/dL vs 93.1 mg/dL, P < 0.001). Moreover, patients receiving standard treatment had greater levels of fasting plasma glucose (104 mg/dL vs 98.5 mg/dL, P = 0.027), 2-h PPG (169 mg/dL vs 111 mg/dL, P < 0.001), and postprandial glucose variability (65.4 mg/dL vs 12.8 mg/dL, P < 0.001) than participants under telehealth consultation.

Conclusions

Telemedicine in addition to standard antidiabetic therapy helped to reduce plasma LDL cholesterol levels and postprandial glucose variability in patients with newly diagnosed T2DM. Therefore, telehealth consultation is a suitable complement to pharmacologic therapy for diabetic patients to assist in the management of proatherogenic dyslipidemia and postprandial glucose variability.

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Tao Gao Department of General Practice, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China

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Rui Liu Department of Oncology. The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China

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Chunli Li Institute of Life Sciences, Chongqing Medical University, Chongqing, China

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Xinglin Chu Department of General Practice, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China

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Qiao Guo Department of General Practice, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China

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Dazhi Ke Department of General Practice, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, China

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Background

Fetuin-B, a cytokine that regulates lipid metabolism, has recently been linked to cardiovascular diseases such as coronary heart disease. In this study, we discussed the relationship between fetuin-B and essential hypertension.

Method

A bioinformatics analysis of fetuin-B was performed. A total of 206 with essential hypertension and 180 age- and-sex-matched healthy subjects were enrolled. Plasma fetuin-B, endothelin 1 (ET-1), nitric oxide (NO), and adiponectin (ADI) levels were measured using ELISA kits.

Results

Bioinformatics analysis has revealed that fetuin-B plays an important role in pathways such as lipid metabolism. Compared with healthy subjects, serum fetuin-B levels in patients with essential hypertension were significantly increased. Correlation analysis showed that the serum fetuin-B level was positively correlated with systolic blood pressure (SBP), diastolic blood pressure, body mass index, fat percentage in vivo, waist–hip ratio, intima–media thickness, low-density lipoprotein cholesterol (LDL-C), glutamyltranspeptidase, alanine transaminase, albumin, fasting blood glucose (FBG), glycated hemoglobin, and ET-1 in the overall study subjects (all P < 0.05) and negatively correlated with HDL-C, ADI, and NO (all P < 0.05). Multivariate linear regression analysis showed that SBP, FBG, LDL-C, ADI, and ET-1 were independent factors affecting serum fetuin-B. A binary logistic regression analysis showed that fetuin-B was an independent risk factor for primary hypertension (odds ratio: 1.060, 95% CI: 1.034–1.086, P < 0.001). Receiver operating characteristic curve analysis was used to evaluate the predictive value of fetuin-B for primary hypertension, and the optimal cutoff point was 83.14 μg/mL (sensitivity 77.4%, specificity 63.3%) (area under the curve) = 0.7738, 95% CI 0.7276–0.8200, P < 0.001).

Conclusion

Elevated fetuin-B levels are associated with an increased risk of essential hypertension.

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Ulrik Ø Andersen Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Institute of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Dijana Terzic Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Institute of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Nicolai Jacob Wewer Albrechtsen Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Institute of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Novo Nordisk Foundation Centre for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Peter Dall Mark Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Institute of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Peter Plomgaard Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Jens F Rehfeld Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark

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Finn Gustafsson Department of Cardiology, Rigshospitalet, Copenhagen, Denmark

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Jens P Goetze Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Institute of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Aims

Neprilysin degrades natriuretic peptides in circulation and is also suggested to degrade the gut hormones gastrin and cholecystokinin. Neprilysin inhibition has become a therapeutic strategy and thus a regimen in need of further testing in terms of other hormonal axes besides natriuretic peptides. The aim of this study was to examine whether acute inhibition of neprilysin affects meal-induced responses in gastrin and cholecystokinin concentrations in healthy individuals.

Methods and results

Nine healthy young men were included in an open-labelled, randomized cross-over clinical trial. The participants received a standardized meal (25 g fat, 26 g protein, 42 g carbohydrate) on two separate days with or without a one-time dosage of sacubitril ((194 mg)/valsartan (206 mg)). Blood pressure, heart rate and blood samples were measured and collected during the experiment. Statistical differences between groups were assessed using area under the curve together with an ANOVA with a Bonferroni post hoc test. Sacubitril/valsartan increased the postprandial plasma concentrations of both gastrin and cholecystokinin (80% (AUC0-270 min, P = 0.004) and 60% (AUC0-270 min, P = 0.003), respectively) compared with the control meal. No significant hemodynamic effects were noted (blood pressure, AUC0-270 min, P = 0.86, heart rate, AUC0-270 min, P = 0.96).

Conclusion

Our study demonstrates that sacubitril/valsartan increases the postprandial plasma concentrations of gastrin and cholecystokinin in healthy individuals. The results thus suggest that neprilysin-mediated degradation of gastrin and cholecystokinin is physiologically relevant and may have a role in heart failure patients treated with sacubitril/valsartan.

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L E Zijlstra Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands

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D M van Velzen Department of Internal Medicine, Section of Endocrinology, Northwest Clinics, Alkmaar, The Netherlands

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S Simsek Department of Internal Medicine, Section of Endocrinology, Northwest Clinics, Alkmaar, The Netherlands

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S P Mooijaart Department of Internal Medicine, Section of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands

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M van Buren Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
Department of Internal Medicine, HagaHospital, The Hague, The Netherlands

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D J Stott Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK

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I Ford Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK

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J W Jukema Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands

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S Trompet Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
Department of Internal Medicine, Section of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands

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Objective

Thyroid hormones have been implicated to play a role in cardiovascular disease, along with studies linking thyroid hormone to kidney function. The aim of this study is to investigate whether kidney function modifies the association of subclinical thyroid dysfunction and the risk of cardiovascular outcomes.

Methods

In total, 5804 patients were included in the PROspective Study of Pravastatin in the Elderly at Risk (PROSPER). For the current analysis, 426 were excluded because of overt thyroid disease at baseline or 6 months, 266 because of inconsistent thyroid function at baseline and 6 months, 294 because of medication use that could influence thyroid function, and 16 because of missing kidney or thyroid values. Participants with normal fT4 were classified, based on TSH both at inclusion and 6 months, into three groups: subclinical hypothyroidism (TSH >4.5 mIU/L); euthyroidism (TSH = 0.45–4.5 mIU/L); and subclinical hyperthyroidism (TSH <0.45 mIU/L). Strata of kidney function were made based on estimated glomerular filtration rate into three clinically relevant groups: <45, 45–60, and >60 mL/min/1.73 m2. The primary endpoint consists of death from coronary heart disease, non-fatal myocardial infarction and (non)fatal stroke.

Results

Mean age was 75.3 years, and 49.0% patients were male. Mean follow-up was 3.2 years. Of all participants, 109 subjects (2.2%) had subclinical hypothyroidism, 4573 (94.0%) had euthyroidism, and 182 (3.7%) subclinical hyperthyroidism. For patients with subclinical hypothyroidism, euthyroidism, and subclinical hyperthyroidism, primary outcome occurred in 9 (8.3%), 712 (15.6%), and 23 (12.6%) patients, respectively. No statistically significant relationship was found between subclinical thyroid dysfunction and primary endpoint with adjusted hazard ratios of 0.51 (0.24–1.07) comparing subclinical hyperthyroidism and 0.90 (0.58–1.39) comparing subclinical hypothyroidism with euthyroidism. Neither was this relationship present in any of the strata of kidney function, nor did kidney function interact with subclinical thyroid dysfunction in the association with primary endpoint (P interaction = 0.602 for subclinical hyperthyroidism and 0.388 for subclinical hypothyroidism).

Conclusions

In this secondary analysis from PROSPER, we found no evidence that the potential association between thyroid hormones and cardiovascular disease is modified by kidney function in older patients with subclinical thyroid dysfunction.

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Myrtille Fouché Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Yves Bouffard Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Mary-Charlotte Le Goff Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Johanne Prothet Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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François Malavieille Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Pierre Sagnard Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Françoise Christin Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Davy Hayi-Slayman Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Arnaud Pasquer Department of Visceral Surgery, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Gilles Poncet Department of Visceral Surgery, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Thomas Walter Department of Hepatogastroenterology and Oncology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France

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Thomas Rimmelé Department of Anaesthesiology and Critical Care Medicine, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
EA 7426 Hospices Civils de Lyon-University Claude Bernard Lyon 1-Biomérieux ‘Pathophysiology of Injury-Induced Immunosuppression’ Pi3, Lyon, France

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Only few descriptions of intraoperative carcinoid syndrome (ioCS) have been reported. The primary objective of this study was to describe ioCS. A second aim was to identify risk factors of ioCS. We retrospectively analysed patients operated for small-bowel neuroendocrine tumour in our institution between 2007 and 2015, and receiving our preventive local regimen of octreotide continuous administration. ioCS was defined as highly probable in case of rapid (<5 min) arterial blood pressure changes ≥40%, not explained by surgical/anaesthetic management and regressive ≥20% after octreotide bolus injection. Probable cases were ioCS which did not meet all criteria of highly-probable ioCS. Suspected ioCS were detected on the anaesthesia record by an injection of octreotide due to a manifestation which did not meet the criteria for highly-probable or probable ioCS. A total of 81 patients (liver metastases: 59, prior carcinoid syndrome: 49, carcinoid heart disease: 7) were included; 139 ioCS occurred in 45 patients: 45 highly probable, 67 probable and 27 suspected. ioCs was hypertensive (91%) and/or hypotensive (29%). There was no factor, including the use of vasopressors, significantly associated with the occurrence of an ioCS. All surgeries were completed and one patient died from cardiac failure 4 days after surgery. After preoperative octreotide continuous infusion, ioCS were mainly hypertensive. No ioCS risk factors, including vasopressor use, were identified. No intraoperative carcinoid crisis occurred, suggesting the clinical relevance of a standardized octreotide prophylaxis protocol.

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Leyre Lorente-Poch Endocrine Surgery Unit, Hospital del Mar, Barcelona, Spain
Departament de Cirurgia, Universitat Autònoma de Barcelona, Barcelona, Spain

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Sílvia Rifà-Terricabras Departament de Cirurgia, Universitat Autònoma de Barcelona, Barcelona, Spain

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Juan José Sancho Endocrine Surgery Unit, Hospital del Mar, Barcelona, Spain
Departament de Cirurgia, Universitat Autònoma de Barcelona, Barcelona, Spain

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Danilo Torselli-Valladares Endocrine Surgery Unit, Hospital del Mar, Barcelona, Spain

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Sofia González-Ortiz Department of Radiology, Hospital del Mar, Barcelona, Spain

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Antonio Sitges-Serra Endocrine Surgery Unit, Hospital del Mar, Barcelona, Spain
Departament de Cirurgia, Universitat Autònoma de Barcelona, Barcelona, Spain

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Objective:

Permanent hypoparathyroidism is an uncommon disease resulting most frequently from neck surgery. It has been associated with visceral calcifications but few studies have specifically this in patients with post-surgical hypoparathyroidism. The aim of the present study was to assess the prevalence of basal ganglia and carotid artery calcifications in patients with long-term post-thyroidectomy hypoparathyroidism compared with a control population.

Design:

Case–control study.

Methods:

A cross-sectional review comparing 29 consecutive patients with permanent postoperative hypoparathyroidism followed-up in a tertiary reference unit for Endocrine Surgery with a contemporary control group of 501 patients who had an emergency brain CT scan. Clinical variables and prevalence of basal ganglia and carotid artery calcifications were recorded.

Results:

From a cohort of 46 patients diagnosed with permanent hypoparathyroidism, 29 were included in the study. The mean duration of disease was 9.2 ± 7 years. Age, diabetes, hypertension, smoking and dyslipidemia were similarly distributed in case and control groups. The prevalence of carotid artery and basal ganglia calcifications was 4 and 20 times more frequent in patients with permanent hypoparathyroidism, respectively. After propensity score matching of the 28 the female patients, 68 controls were matched for age and presence of cardiovascular factors. Cases showed a four-fold prevalence of basal ganglia calcifications, whereas that of carotid calcifications was similar between cases and controls.

Conclusion:

A high prevalence of basal ganglia calcifications was observed in patients with post-surgical permanent hypoparathyroidism. It remains unclear whether carotid artery calcification may also be increased.

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Susanna Cirera
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Sophia G Moesgaard Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Nora E Zois Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Nathja Ravn Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Jens P Goetze Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Signe E Cremer Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Tom Teerlink Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Páll S Leifsson Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Jesper L Honge Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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J Michael Hasenkam Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Lisbeth H Olsen Department of Veterinary Clinical and Animal Sciences, Novo Nordisk A/S, Department of Clinical Biochemistry, Department of Cardiothoracic and Vascular Surgery, Department of Clinical Biochemistry, Department of Veterinary Disease Biology, Department of Clinical Chemistry, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark

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Objective

Non-ischemic mitral regurgitation (MR) is primarily caused by myxomatous mitral valve (MV) disease leading to adaptive remodeling, enlargement, and dysfunction of the left ventricle. The aim of this study was to examine the regulation of plasma markers and several cardiac key genes in a novel porcine model of non-ischemic MR.

Methods and results

Twenty-eight production pigs (Sus scrofa) were randomized to experimental MR or sham surgery controls. MR was induced by external suture(s) through the posterior MV leaflet and quantified using echocardiography. The experimental group was subdivided into mild MR (mMR, MR=20–50%, n=10) and moderate/severe MR (sMR, MR >50%, n=6) and compared with controls (CON, MR ≤10%, n=12). Eight weeks postoperatively, follow-up examinations were performed followed by killing. Circulating concentrations of pro-atrial natriuretic peptide (proANP), l-arginine, asymmetric dimethylarginine, and symmetric dimethylarginine (SDMA) were measured. MV, anterior papillary muscle, and left ventricular free wall tissues were collected to quantify mRNA expression of eNOS (NOS3), iNOS (NOS2), MMP9, MMP14, ANP (NPPA), BNP (NPPB), and TGFB1, 2, and 3 and five microRNAs by quantitative real-time PCR. Pigs with sMR displayed markedly increased plasma proANP and SDMA concentrations compared with both controls and mMR (P<0.05). The expression of all genes examined differed significantly between the three localizations in the heart. miR-21 and miR-133a were differently expressed among the experimental groups (P<0.05).

Conclusions

Plasma proANP and SDMA levels and tissue expression of miR-21 and miR-133a are associated with severity of chronic MR in an experimental porcine model.

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Yueyuan Yang Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China

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Tingting Yu Department of Radiology, Renmin Hospital of Wuhan University, Wuhan, China

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Zhili Niu Department of Clinical Laboratory, Institute of translational medicine, Renmin Hospital of Wuhan University, Wuhan, China

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Ling Gao Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, China

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Objective

Uridine might be a common link between pathological pathways in diabetes and cardiovascular diseases. This study aimed to investigate the predictive value of plasma uridine for type 2 diabetes (T2D) and T2D with atherosclerosis.

Methods

Individuals with T2D and healthy controls (n = 218) were randomly enrolled in a cross-sectional study. Patients with T2D were divided into two groups based on carotid ultrasound: patients with carotid atherosclerosis (CA) (group DCA) and patients without CA (group D). Plasma uridine was determined using HPLC-MS/MS. Correlation and logistic regression analyses were used to analyze the results.

Results

Fasting and postprandial uridine were significantly increased in patients with T2D compared with healthy individuals. Logistic regression suggested that fasting and postprandial uridine were independent risk factors for T2D. The receiver operating characteristic (ROC) curve showed that fasting uridine had a predictive value on T2D (95% CI, 0.686–0.863, sensitivity 74.3%, specificity 71.8%). Fasting uridine was positively correlated with LDL-c, FBG, and PBG and negatively correlated with fasting C-peptide (CP-0h) and HOMA-IS. The change in postprandial uridine from fasting baseline (Δuridine) was smaller in T2D patients with CA compared with those without (0.80 (0.04–2.46) vs 2.01 (0.49–3.15), P = 0.010). Δuridine was also associated with T2D with CA and negatively correlated with BMI, CP-0h, and HOMA-IR.

Conclusion

Fasting uridine has potential as a predictor of diabetes. Δuridine is closely associated with carotid atherosclerosis in patients with T2D.

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Karoline Winckler Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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Lise Tarnow Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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Louise Lundby-Christensen Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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Thomas P Almdal Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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Niels Wiinberg Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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Pia Eiken Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology
Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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Trine W Boesgaard Department of Cardiology, Department of Research, Institute of Clinical Studies, Clinical Research Unit, Department of Paediatrics, Department of Medicine, Department of Physiology and Nuclear Medicine, Institute of Clinical Medicine, Nephrology and Endocrinology

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the CIMT trial group
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Despite aggressive treatment of cardiovascular disease (CVD) risk factors individuals with type 2 diabetes (T2D) still have increased risk of cardiovascular morbidity and mortality. The primary aim of this study was to examine the cross-sectional association between total (25-hydroxy vitamin D (25(OH)D)) and risk of CVD in patients with T2D. Secondary objective was to examine the association between 25(OH)D and bone health. A Danish cohort of patients with T2D participating in a randomised clinical trial were analysed. In total 415 patients (68% men, age 60±9 years (mean±s.d.), duration of diabetes 12±6 years), including 294 patients (71%) treated with insulin. Carotid intima–media thickness (IMT) and arterial stiffness (carotid artery distensibility coefficient (DC) and Young's elastic modulus (YEM)) were measured by ultrasound scan as indicators of CVD. Bone health was assessed by bone mineral density and trabecular bone score measured by dual energy X-ray absorptiometry. In this cohort, 214 patients (52%) were vitamin D deficient (25(OH)D <50 nmol/l). Carotid IMT was 0.793±0.137 mm, DC was 0.0030±0.001 mmHg, YEM was 2354±1038 mmHg and 13 (3%) of the patients were diagnosed with osteoporosis. A 25(OH)D level was not associated with carotid IMT or arterial stiffness (P>0.3) or bone health (P>0.6) after adjustment for CVD risk factors. In conclusion, 25(OH)D status was not associated with carotid IMT, arterial stiffness or bone health in this cohort of patients with T2D. To explore these associations and the association with other biomarkers further, multicentre studies with large numbers of patients are required.

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