Objective: Acute rheumatic fever (ARF) is an endemic disease observed in children of developing countries. The purpose of this study was to test if it was possible to identify myocardial involvement in cases with rheumatic carditis by the measurement of serum cardiac TnT.
Methods: 30 patients diagnosed as ARF underwent echocardiography and their cardiac troponin T (cTnT) serum levels were measured. Patients were divided into group 1: Arthritis alone, group 2: carditis, and group 3 carditis with congestive heart failure (CHF).
Results: cTnT serum levels were normal in all except one patient with in group 3. Two patients in carditis (group 2) and three patients in CHF (group 3) had dilation in left ventricular end diastolic diameter.
Conclusions: Normal cTnT levels in our patient group suggests that inflammation rather than myocardial necrosis is predominant in ARF carditis.
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http://dx.doi.org/10.4103/0974-2069.84657 | DOI Listing |
Chin J Nat Med
January 2025
Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China. Electronic address:
Astragali Radix (AR) and Notoginseng Radix et Rhizoma (NR) are frequently employed in cardiovascular disease treatment. However, the efficacy of the AR-NR medicine pair (AN) in improving cardiac remodeling and its underlying mechanism remains unclear. This study aimed to evaluate AN's cardioprotective effect and potential mechanism on cardiac remodeling using transverse aortic constriction (TAC) in mice and angiotensin II (Ang II)-induced neonatal rat cardiomyocytes (NRCMs) and fibroblasts in vitro.
View Article and Find Full Text PDFIn Vitro Cell Dev Biol Anim
January 2025
Department of Critical Care Medicine, The Qujing NO.1 People's Hospital, Qujing, 655000, Yunnan, China.
Melatonin (MEL), functioning as a circulating hormone, is important for the regulation of ferroptosis in different health scenarios and acts as a crucial antioxidant in cardiovascular diseases. However, its specific function in ferroptosis related to myocardial ischemia-reperfusion injury (MIRI) remains to be fully elucidated. In our research, we utilized a rat model of MIRI induced by coronary artery ligation, along with a cell model subjected to hypoxia/reoxygenation (H/R).
View Article and Find Full Text PDFChin J Integr Med
January 2025
Department of Cardiovascular Medicine, National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
Objective: To explore the molecular mechanism of Shenmai Injection (SMI) against doxorubicin (DOX) induced cardiomyocyte apoptosis.
Methods: A total of 40 specific pathogen-free (SPF) male Sprague Dawley (SD) male rats were divided into 5 groups based on the random number table, including the control group, the model group, miR-30a agomir group, SMI low-dose (SMI-L) group, and SMI high-dose (SMI-H) group, with 8 rats in each group. Except for the control group, the rats were injected weekly with DOX (2 mg/kg) in the tail vein for 4 weeks to induce myocardial injury, and were given different regimens of continuous intervention for 2 weeks.
Appl Biochem Biotechnol
January 2025
Department of Internal Medicine-Cardiovascular, Guangzhou Twelfth People's Hospital, No.1, Tianqiang Road, Tianhe District, Guangzhou City, Guangdong Province, 510620, China.
Myocardial infarction (MI) is a coronary artery-related disease that seriously threatens human life and is the leading cause of sudden death worldwide, where a lack of nutrients and oxygen leads to an inflammatory response and death of cardiomyocytes. Ferroptosis is a form of non-apoptotic cell death associated with metabolic dysfunction, resulting in abnormal breakdown of glutamine and iron-dependent accumulation of reactive oxygen species (ROS) during metabolism. However, the molecular mechanism of ferroptosis in the pathogenesis of MI and the function of Klotho and KRAS on ferroptosis during MI remain unclear.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Institute of Legal Medicine, Department of Medical and Surgical Sciences, "Magna Graecia" University, 88100 Catanzaro, Italy.
Postmortem diagnosis of myocardial ischemia remains a challenge in forensic pathology, as traditional methods like autopsy and histology may not always provide conclusive results. Cardiac troponins, specifically cTnI and cTnT, are well-established biomarkers for myocardial injury in living patients, but their role in postmortem ischemia diagnosis is still under investigation. This systematic review aims to evaluate the role of troponins in diagnosing myocardial ischemia in postmortem cases, focusing on the diagnostic accuracy, sample types, and the influence of the postmortem interval (PMI).
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