In order to test the hypothesis that treatment with quercetin at a dose of 10 mg/kg protects from the progression of experimental autoimmune myocarditis (EAM) to dilated cardiomyopathy (DCM), we have used the rat model of EAM induced by porcine cardiac myosin. Our results identified that the post-myocarditis rats suffered from elevated endoplasmic reticulum (ER) stress and adverse cardiac remodelling in the form of myocardial fibrosis, whereas the rats treated with quercetin have been protected from these changes as evidenced by the decreased myocardial levels of ER stress and fibrosis markers when compared with the vehicle-treated DCM rats. In addition, the myocardial dimensions and cardiac function were preserved significantly in the quercetin-treated rats in comparison with the DCM rats treated with vehicle alone. Interestingly, the rats treated with quercetin showed significant suppression of the myocardial endothelin-1 and also the mitogen activated protein kinases (MAPK) suggesting that the protection offered by quercetin treatment against progression of EAM involves the modulation of MAPK signalling cascade. Collectively, the present study provides data to support the role of quercetin in protecting the hearts of the rats with post myocarditis DCM.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/10715762.2011.647010 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Photobiomodulation and aquatic training reduce TNF-α expression and enhance muscle fiber area in Wistar rats with compensatory hypertrophy.
Lasers Med Sci
January 2025
Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, Sao Paulo, SP, 01525000, Brazil.
This study aims to assess the effects of aquatic training (AT) and its combination with photobiomodulation (PBM) on cytokine synthesis and plantar muscle morphology during compensatory hypertrophy (H) in Wistar rats. H was induced by bilateral ablation of synergistic muscles, and PBM using a laser (780 nm). AT involved 60 min sessions, 5 times/week, for 7 and 14 days.
View Article and Find Full Text PDFNutraceutical Impact of Pumpkin Seed Oil on Expression Levels of EZH-2 and KRT-14 Genes against DSS-induced Inflammatory Bowel Disease in the Rat Model.
Cell Biochem Biophys
January 2025
Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
Inflammatory bowel disease is a collection of intestinal disorders that cause inflammation in the digestive tract. Prolonged inflammation in the gastrointestinal tract is a major risk factor for colorectal cancer. The objective of this study was to fucus on gene expression levels of (KRT-14; associated with epithelial cell integrity) and enhancer of zeste homolog-1 (EZH-2; involved in cellular proliferation) in a IBD rat model in order to rule out impact of nutraceuticals (pumpkin seed oil; PSO) as a complementary approach to conventional treatments of IBD.
View Article and Find Full Text PDFMoxifloxacin plus Cordyceps polysaccharide ameliorate intestinal barrier damage due to abdominal infection via anti-inflammation and immune regulation under simulated microgravity.
Life Sci Space Res (Amst)
February 2025
Department of General Surgery, the 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, PR China; Department of General Surgery, the Ninth Medical Center of PLA General Hospital, Beijing 100101, PR China. Electronic address:
Background: Currently, there is limited research on the impact of abdominal infection on intestinal damage under microgravity conditions. Cordyceps polysaccharide (CPS), the main active ingredient of Cordyceps, has demonstrated various pharmacological effects, including anti-inflammatory, antioxidant, and immunomodulatory properties. Moxifloxacin (MXF) is a fourth-generation quinolone antibiotic that is believed to have a dual regulatory effect on immune system activation and suppression.
View Article and Find Full Text PDFImpact of Daily High Ergosterol Intake for 14 Weeks in Ovariectomized Rats on Cholesterol and Vitamin D Biosynthesis Pathways.
Biol Pharm Bull
January 2025
Division of Bio-Analytical Chemistry, Faculty of Medical Technology, Niigata University of Pharmacy and Medical and Life Sciences, 265-1 Higashijima, Akiha-ku, Niigata 956-8603, Japan.
Postmenopausal women are at a higher risk of developing dyslipidemia and osteoporosis due to estrogen deficiency, necessitating regular vitamin D supplementation and the use of cholesterol inhibitors, respectively, to prevent these conditions. Despite current treatments, alternatives are needed to address both conditions simultaneously. Ergosterol, a precursor of vitamin D, is a fungal sterol converted to brassicasterol by 7-dehydrocholesterol reductase, a cholesterol biosynthesis enzyme that converts 7-dehydrocholesterol (a precursor of vitamin D) into cholesterol.
View Article and Find Full Text PDFIntestinal microbiota distribution and changes in different stages of Parkinson's disease: A meta-analysis, bioinformatics analysis and in vivo simulation.
Biosci Trends
January 2025
School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
Parkinson's disease (PD) is a progressive disease that requires effective staging management. The role of intestinal microbiota in PD has been studied, but its changes at different stages are not clear. In this study, meta- analysis, bioinformatics analysis and in vivo simulation were used to explore the intestinal microbiota distribution of PD patients and models at different stages.
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!