Aims: Diastolic dysfunction represents the earliest and most common manifestation of diabetic cardiomyopathy. Nitric oxide (NO), a potent vasodilator and anti-inflammatory mediator released from the subendocardial and coronary endothelium, favors left ventricular distensibility and relaxation. In type 2 diabetes (T2D), the NO bioavailability is reduced due to the oxidative stress and inflammatory state of the endothelium, because of chronic hyperglycemia. The aim of the present research is to evaluate the relationship between endothelial function and diastolic function in subjects with T2D.
Method: Subjects with T2D and age and sex-matched healthy controls were consecutively recruited. All participants underwent flow-mediated dilation (FMD) to assess endothelial function, and echocardiography to evaluate diastolic function.
Results: Thirty-five patients (6 women, 29 men) and 35 healthy controls were included in the final analysis. FMD was significantly lower in T2D than controls (4.4 ± 3.4 vs. 8.5 ± 4.3%, p = 0.001). T2D presented different abnormalities in diastolic function compared to controls: lower E/A (early to late diastolic transmitral flow velocity), lower septal and lateral e' (early diastolic myocardial tissue velocity at septum and lateral wall), and higher E/e' (surrogate of filling pressure). In subjects with T2D, we observed a significant correlation between FMD and E/e' (r = -0.63, p = 0.001), lateral e' (r = 0.44, p = 0.03), and septal e' (r = 0.39, p = 0.05).
Conclusions: Our observational study demonstrated a link between FMD and diastolic dysfunction in subjects with type 2 diabetes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531413 | PMC |
| http://dx.doi.org/10.1007/s00592-024-02313-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The role of multimodality imaging in diabetic cardiomyopathy: a brief review.
Front Endocrinol (Lausanne)
December 2024
Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, United States.
Diabetic cardiomyopathy (DMCM), defined as left ventricular dysfunction in the setting of diabetes mellitus without hypertension, coronary artery disease or valvular heart disease, is a well-recognized entity whose prevalence is certainly predicted to increase alongside the rising incidence and prevalence of diabetes mellitus. The pathophysiology of DMCM stems from hyperglycemia and insulin resistance, resulting in oxidative stress, inflammation, cardiomyocyte death, and fibrosis. These perturbations lead to left ventricular hypertrophy with associated impaired relaxation early in the course of the disease, and eventually culminating in combined systolic and diastolic heart failure.
View Article and Find Full Text PDFPINK1 modulates Prdx2 to reduce lipotoxicity-induced apoptosis and attenuate cardiac dysfunction in heart failure mice with a preserved ejection fraction.
Clin Transl Med
January 2025
Key Laboratory For Organ Failure Research, Ministry of Education of the People's Republic of China, Guangzhou, China.
Introduction: Heart failure with preserved ejection fraction (HFpEF) is a complex condition characterized by metabolic dysfunction and myocardial lipotoxicity. The roles of PTEN-induced kinase 1 (PINK1) and peroxiredoxin-2 (Prdx2) in HFpEF pathogenesis remain unclear.
Objective: This study aimed to investigate the interaction between PINK1 and Prdx2 to mitigate cardiac diastolic dysfunction in HFpEF.
Effects of Tai Chi Chuan on physical function and health in breast cancer patients.
Support Care Cancer
January 2025
S' Clinic, Guangzhou, 510000, China.
Purpose: This study aims to explore the effects of Tai Chi Chuan (TCC) on physical function, hematological metabolic biomarkers, sleep quality, and mental health in breast cancer patients.
Methods: This was a prospective clinical trial that involved 37 breast cancer patients who had completed surgery treatment. Participants' motor function, hematological examination, and self-rated questionnaire were assessed at the baseline and after the intervention.
Anatomy versus Shunt Fraction: Hemodynamic Consequences in Atrial Septal Defects and Partial Anomalous Pulmonary Venous Connection - A comprehensive CMR study.
Eur Heart J Cardiovasc Imaging
January 2025
Department of Radiology, UZ Leuven, Leuven, Belgium.
Aims: Atrial septal defect (ASD) and partial abnormal pulmonary venous connection (PAPVC) are noncyanotic congenital heart defects (CHD) that produce a left-to-right shunt. This single-center retrospective study aimed to assess the hemodynamic impact of isolated ASD, isolated PAPVC, and ASD-associated PAPVC using cardiovascular magnetic resonance (CMR).
Methods And Results: From our CMR registry (2002-2024), 110 patients were included: isolated ASD (n=64), isolated PAPVC (n=18), ASD-associated PAPVC (n=28, mostly sinus venosus septal defects).
Incremental Role of Cardiac CT Angiography in the Assessment of Left Ventricular Diastolic Function in Patients With Suspected Coronary Artery Disease With Normal Ejection Fraction: A Comparison With Transthoracic Echocardiography.
Echocardiography
January 2025
Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India.
Objective: Diastolic dysfunction (DD) is defined as impaired left ventricular (LV) relaxation, caused by structural or functional heart diseases. We sought to assess the role of cardiac CT angiography (CCTA) as a tool to evaluate LV DD in patients with normal EF using the diastolic expansion index (DEI), as compared to transthoracic echocardiography (TTE) as the gold standard.
Methods: Patients presenting with atypical chest pain with suspected coronary artery disease (CAD) and having a normal LV ejection fraction on TTE underwent CCTA using a dual source CT scanner.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!