is a traditional Chinese herbal medicine with antioxidation, anti-inflammatory, antibacterial, and immunoregulation functions. A method to isolate polysaccharides from (LJP) has been reported previously by our group. We also reported previously that LJP was consisted of 6 types of monosaccharides and had the characteristic absorption of typical polysaccharides. In this study, we investigated the protective effect of LJP on cardiomyocytes of mice injured by hydrogen peroxide (HO). The results showed that LJP can increase the cardiomyocyte viability and the activities of the enzyme (SOD, CAT, GSH-Px, AST, CPK, and LDH) in cardiomyocytes of mice injured by hydrogen peroxide. The results of intracellular ROS contents showed that a high dose (40 g mL) of LJP had the best effects on protecting the cardiomyocytes of mice injured by HO. In addition, the measurement results of the cardiomyocyte apoptosis and the activity of caspase-3, caspase-8, and caspase-9 in cardiomyocytes confirmed this conclusion from another perspective.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7333056 | PMC |
| http://dx.doi.org/10.1155/2020/5279193 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Trimetazidine: Activating AMPK Signal to Ameliorate Coronary Microcirculation Dysfunction after Myocardial Infarction.
Front Biosci (Landmark Ed)
January 2025
Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, 401336 Chongqing, China.
Background: Myocardial ischemia-reperfusion (I/R) injury and coronary microcirculation dysfunction (CMD) are observed in patients with myocardial infarction after vascular recanalization. The antianginal drug trimetazidine has been demonstrated to exert a protective effect in myocardial ischemia-reperfusion injury.
Objectives: This study aimed to investigate the role of trimetazidine in endothelial cell dysfunction caused by myocardial I/R injury and thus improve coronary microcirculation.
NF-κB-Specific Suppression in Cardiomyocytes Unveils Aging-Associated Responses in Cardiac Tissue.
Biomedicines
January 2025
Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.
: Aging is associated with structural and functional changes in the heart, including hypertrophy, fibrosis, and impaired contractility. Cellular mechanisms such as senescence, telomere shortening, and DNA damage contribute to these processes. Nuclear factor kappa B (NF-κB) has been implicated in mediating cellular responses in aging tissues, and increased NF-κB expression has been observed in the hearts of aging rodents.
View Article and Find Full Text PDFeIF4A1 exacerbates myocardial ischemia-reperfusion injury in mice by promoting nuclear translocation of transgelin/p53.
Acta Pharmacol Sin
January 2025
Department of Pharmacology, National Key Laboratory of Frigid Zone Cardiovascular Diseases, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, College of Pharmacy, Harbin Medical University, Harbin, 150086, China.
Eukaryotic translation initiation factor 4A1 (eIF4A1) is an ATP-dependent RNA helicase that participates in a variety of biological and pathological processes such as cell proliferation and apoptosis, and cancer. In this study we investigated the role of eIF4A1 in ischemic heart disease. The myocardial ischemia/reperfusion (I/R) model was established in mice by ligation of the left anterior descending artery for 45 min with the subsequent reperfusion for 24 h; cultured neonatal mouse ventricular cardiomyocytes (NMVCs) treated with HO (200 μM) or H/R (12 h hypoxia and 12 h reoxygenation) were used for in vitro study.
View Article and Find Full Text PDFSemaglutide administration protects cardiomyocytes in db/db mice via energetic improvement and mitochondrial quality control.
Acta Pharmacol Sin
January 2025
Key Laboratory of Cardiovascular and Cerebrovascular Medicine, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China.
Diabetic cardiomyopathy causes end-stage heart failure, resulting in high morbidity and mortality in type 2 diabetes mellitus (T2DM) patients. Long-term treatment targeting metabolism is an emerging field in the treatment of diabetic cardiomyopathy. Semaglutide, an agonist of the glucagon-like peptide 1 receptor, is clinically approved for the treatment of T2DM and provides cardiac benefits in patients.
View Article and Find Full Text PDFSerpina3k lactylation protects from cardiac ischemia reperfusion injury.
Nat Commun
January 2025
State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
Lactate produced during ischemia-reperfusion injury is known to promote lactylation of proteins, which play controversial roles. By analyzing the lactylomes and proteomes of mouse myocardium during ischemia-reperfusion injury using mass spectrometry, we show that both Serpina3k protein expression and its lactylation at lysine 351 are increased upon reperfusion. Both Serpina3k and its human homolog, SERPINA3, are abundantly expressed in cardiac fibroblasts, but not in cardiomyocytes.
View Article and Find Full Text PDFWant 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!