Background: Cardiovascular disease (CVD) affects millions worldwide and is the leading cause of death among non-communicable diseases. Western diets typically comprise of meat and dairy products, both of which are rich in cholesterol (Cho) and methionine (Met), two well-known compounds with atherogenic capabilities. Despite their individual effects, literature on a dietary combination of the two in the context of CVD are limited. Therefore, studies on the combined effects of Cho and Met were carried out using male Sprague Dawley rats. An additional interest was to investigate the cardioprotective potential of sitagliptin, an anti-type 2 diabetic drug. We hypothesized that feeding a dietary combination of Cho and Met would result in adverse cardiac effects and would be attenuated upon administration of sitagliptin.
Methods: Adult male Sprague-Dawley rats were fed either a control (Con), high Met (1.5%), high Cho (2.0%), or high Met (1.5%) + high Cho (2.0%) diet for 35 days. They were orally gavaged with an aqueous preparation of sitagliptin (100 mg/kg/d) or vehicle (water) from day 10 through 35. On day 36, rats were euthanized, and tissues were collected for analysis.
Results: Histopathological evaluation revealed a reduction in myocardial striations and increased collagen deposition in hypercholesterolemia (HChol), responses that became exacerbated upon sitagliptin administration. Cardiac pro-inflammatory and pro-fibrotic responses were adversely impacted in similar fashion. The addition of Met to Cho (MC) attenuated all adverse structural and biochemical responses, with or without sitagliptin.
Conclusions: Adverse cardiac outcomes in HChol were enhanced by the administration of sitagliptin, and such effects were alleviated by Met. Our findings could be significant for understanding or revisiting the risk-benefit evaluation of sitagliptin in type 2 diabetics, and especially those who are known to consume atherogenic diets.
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http://dx.doi.org/10.1186/s12986-024-00817-9 | DOI Listing |
Swiss Med Wkly
January 2025
Department of Cardiology and Internal Medicine B, University Medicine Greifswald, Greifswald, Germany.
Background: Coronary artery ectasias and aneurysms (CAE/CAAs) are among the less common forms of coronary artery disease, with undefined long-term outcomes and treatment strategies.
Aims: To assess the clinical characteristics, angiographic patterns, and long-term outcomes in patients with CAE, CAA, or both.
Methods: This 15-year (2006-2021) retrospective single-centre registry included 281 patients diagnosed with CAE/CAA via invasive coronary angiography.
Clin Otolaryngol
January 2025
Department of Otorhinolaryngology-Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Introduction: Obstructive sleep apnoea (OSA) in children is associated with numerous adverse outcomes, including elevated blood pressure. While the associations between OSA, obesity, and autonomic dysfunction are recognised, the precise mechanisms linking these factors and their relationship with elevated blood pressure in children remain unclear.
Methods: This retrospective case series included 76 children with OSA.
Artif Organs
January 2025
Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons and NewYork-Presbyterian Hospital, New York, New York, USA.
Background: GLP-1 RAs improve cardiometabolic outcomes in obese, diabetic, and heart failure patients. Data on the safety and efficacy of GLP-1 RA in advanced heart failure with durable LVAD is limited.
Objectives: To assess the safety and efficacy of GLP-1 RA in durable LVAD patients.
Crit Pathw Cardiol
December 2024
Division of Cardiology, Logan Hospital, Meadowbrook, Australia.
The performing of non-physician led exercise stress testing with and without echocardiography has shown similar diagnostic utility and safety as physician led models. While diagnostic accuracy and relative safety have been the focus of previous research, the current study aims to demonstrate efficiencies not previously reported such as reduction in wait times for testing and improved service attendance. A non-physician led exercise stress echocardiography (ESE) service was implemented on 01/01/2018, prior to this all tests were performed under a physician led model.
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January 2025
Centre of Genomics and Policy, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada.
Introduction: This qualitative research study aimed to better understand and help improve the Canadian context for health communication with intersex adults by centering the voices of those directly involved and impacted.
Methods: We conducted 22 semi-structured interviews with intersex individuals (14) and healthcare practitioners (HCPs, 8) from diverse areas of care. Interviews were analyzed via template thematic analysis and filtered through a conceptual lens that brought together agency-based and social-ecological models of health communication.
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