Myocardial preservation techniques have evolved in conjunction with cardiac surgery and currently offer substantial protection against myocardial injury. We propose that cardiac preconditioning, a robust, endogenous mechanism of cardioprotection, is emerging as an important adjunct to current cardioplegic techniques. By reviewing the physiologic basis for current cardioplegic strategies, and understanding the cardioprotective benefits of preconditioning, we postulate that cardiac preconditioning may represent an important, clinically accessible component of myocardial protection.
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http://dx.doi.org/10.1016/0003-4975(95)01129-3 | DOI Listing |
Transplant Proc
January 2025
Guangxi Medical University, Nanning, China. Electronic address:
Background: The purpose of this study was to investigate the myocardial protective effect of Xuebijing (XBJ) injection in isolated donor heart preservation based on autophagy and NLRP3 inflammatory pathway, and to provide clues for improving the quality of donor heart preservation in the clinic.
Methods: Fourteen Guangxi Bama miniature pigs were randomly divided into two groups to establish the isolated heart perfusion model of extracorporeal membrane oxygenation (ECMO): (1) normal saline group (NS group): 50 mL normal saline was added to the perfusion solution; and (2) Xuebijing injection group (XBJ group): 10 mL of XBJ was added to the perfusate. Both groups were continuously pumped with 5 mL/h for 8 hours.
Adv Sci (Weinh)
January 2025
Department of Radiology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 East Zhongshan Road, Nanjing, 210002, China.
Pyroptosis is a key mode of programmed cell death during the early stages following acute myocardial infarction (AMI), driving immune-inflammatory responses. Cardiac resident macrophages (CRMs) are the primary mediators of cardiac immunity, and they serve a dual role through their shaping of both myocardial injury and post-AMI myocardial repair. To appropriately regulate AMI-associated inflammation, HM4oRL is herein designed, an innovative bifunctional therapeutic nanoplatform capable of inhibiting cardiomyocyte pyroptosis while reprogramming inflammatory signaling.
View Article and Find Full Text PDFEndocr Metab Immune Disord Drug Targets
January 2025
Department of Internal Medicine, Hebei Medical University, Shijiazhuang, Hebei, China.
Background: Heart failure with preserved ejection fraction (HFpEF) represents a challenging cardiovascular condition characterized by normal systolic function but impaired diastolic performance. Despite its increasing prevalence, therapeutic options remain limited. This study investigated the metabolic effects of canagliflozin, a sodium-glucose cotransporter 2 (SGLT2) inhibitor, on cardiac function and energy metabolism in HFpEF.
View Article and Find Full Text PDFCardiovasc Ther
January 2025
Department of Cardiology, The Fourth Affiliated Hospital, Nanjing Medical University, Nanjing, China.
Myocardial infarction (MI), a severe cardiovascular disease, is the result of insufficient blood supply to the myocardium. Despite the improvements of conventional therapies, new approaches are needed to improve the outcome post-MI. Imperatorin is a natural compound with multiple pharmacological properties and potential cardioprotective effects.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
The extracellular matrix (ECM) is a complex and dynamic three-dimensional network that functions as an architectural scaffold to maintain cardiac homeostasis. Important biochemical and mechanical signals associated with cell‒cell communication are provided via the reciprocal interaction between cells and the ECM. By converting mechanical cues into biochemical signals, the ECM regulates many cell processes, including migration, adhesion, growth, differentiation, proliferation, and apoptosis.
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