Failure of Isoflurane Cardiac Preconditioning in Obese Type 2 Diabetic Mice Involves Aberrant Regulation of MicroRNA-21, Endothelial Nitric-oxide Synthase, and Mitochondrial Complex I

Conclusions Failure of isoflurane cardiac preconditioning in obese type 2 diabetic db/db mice is associated with aberrant regulation of microRNA-21, endothelial nitric-oxide synthase, and mitochondrial respiratory complex I.
Source: Anesthesiology - Category: Anesthesiology Source Type: research

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In this study, we investigated the antihypertensive effect and underlying mechanisms of P. asiatica L. seeds extract (PASE) in spontaneously hypertensive rat (SHR). Male SHRs were treated with 2.5 mg/kg of fosinopril (FOS) and 400 mg/kg of PASE orally per day for once or 12 weeks. SHR or Wistar-Kyoto rats (WKY) receiving vehicle (distilled water) was used as control. The results demonstrated systolic, diastolic, and mean blood pressures (SBP, DBP, and MBP) were significantly lowered after single and long-term intragastric administration of PASE. The cardiac and aortic index and collagen accumulation were improved in the PA...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
In conclusion, the impaired in situ activity of RyR2 may also account for the poor overall cardiac outcome reported in MetS patients; hence, the SERCA pump and RyR2 are both attractive potential targets for future therapies. Introduction Metabolic syndrome (MetS) is a cluster of biochemical and physiological risk factors for cardiovascular disease and diabetes mellitus type 2 (DM2); it represents a severe public health problem around the world (Alberti et al., 2009). Risk factors for MetS include obesity (particularly central obesity), elevated triglyceride (TG) levels, low high-density lipoprotein cholesterol (HDL...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
In conclusion, TSF improved lipid accumulation and hepatic steatosis by inducing the AMPK/SIRT1 pathway-mediated autophagy. Introduction Nonalcoholic fatty liver disease (NAFLD) has become a worldwide health concern due to the increased incidence of obesity and diabetes. In addition, NAFLD is closely associated with the risk factors of coronary heart disease, such as metabolic syndrome, diabetes mellitus, and dyslipidemia, which are considered to be the leading causes of death (Wiest et al., 2017). Although our understanding of the pathogenesis of NAFLD has significantly improved, there is still no effective medica...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
This study was approved by the University of Sydney Animal Ethics Committee (Protocol #2015/816). The experiments described herein were carried out according to the guidelines laid down by the New South Wales Animal Research Act and the 8th Edition of the Australian code for the care and use of animals for scientific purposes. Animal Characteristics Sample size for this study was calculated as follows: considering previous studies from our group (Martinez-Huenchullan et al., 2018) and that one of our main outcomes was muscle high-molecular weight (HMW) adiponectin, having a statistical significance of 0.05). In body comp...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Docosahexaenoic Acid Increases the Potency of Soluble Epoxide Hydrolase Inhibitor in Alleviating Streptozotocin-Induced Alzheimer’s Disease-Like Complications of Diabetes Rohit Pardeshi1, Nityanand Bolshette2, Kundlik Gadhave3, Mohammad Arfeen4, Sahabuddin Ahmed4, Rohitash Jamwal5, Bruce D. Hammock6, Mangala Lahkar2 and Sumanta Kumar Goswami6* 1Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Gauhati Medical College and Hospital, Guwahati, India 2Institutional Level Biotech Hub (IBT Hub), Department of Biotechnology, National Institute of Pharmaceutical Educatio...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Ali Mahzari1, Songpei Li1, Xiu Zhou1,2, Dongli Li2, Sherouk Fouda1, Majid Alhomrani1, Wala Alzahrani1, Stephen R. Robinson1 and Ji-Ming Ye1,2* 1Lipid Biology and Metabolic Disease Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia 2School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China The present study investigated the effects of matrine on non-alcoholic steatohepatitis (NASH) in mice induced by a methionine choline-deficient (MCD) diet and the mechanism involved. The study was performed in C57B/6J mice fed a MCD diet for 6 weeks to induce NAS...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Conclusion: These findings limit the possible roles of gene transcriptional changes in previously reported age-dependent pro-arrhythmic electrophysiologial changes observed in Pgc-1β-/- atria to an altered Ca2+-ATPase (Atp2a2) expression. This directly parallels previously reported arrhythmic mechanism associated with p21-activated kinase type 1 deficiency. This could add to contributions from the direct physiological outcomes of mitochondrial dysfunction, whether through reactive oxygen species (ROS) production or altered Ca2+ homeostasis. Introduction Atrial arrhythmias constitute a major public health probl...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Michio Kawano1, Masaya Miyoshi1 and Tadaaki Miyazaki2* 1Milk Science Research Institute, Megmilk Snow Brand Co. Ltd., Saitama, Japan 2Department of Probiotics Immunology, Institute for Genetic Medicine, Hokkaido University, Hokkaido, Japan Lactobacillus helveticus SBT2171 (LH2171) has been reported to ameliorate the development of autoimmune diseases, such as collagen-induced arthritis and experimental autoimmune encephalitis in mice and inhibit interleukin (IL)-6 production in antigen-presenting cells in vitro. Regulation of cytokine production by antigen-presenting cells might be critical for the anti-inflamma...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Bartolo Ferraro1,2, Maria Donniacuo3, Loredana Sodano3, Franca Ferraraccio4, Rosa Maisto3, Eliana Gulotta5, Gorizio Pieretti6, Michele D’Amico3*, Maria Consiglia Trotta3 and Barbara Rinaldi3 1Institute for Cardiovascular Prevention (IPEK), Ludwig Maximilian University of Munich, Munich, Germany 2DZHK, Partner Site Munich Heart Alliance, Munich, Germany 3Department of Experimental Medicine, Pharmacology Division, University of Campania “L. Vanvitelli”, Naples, Italy 4Department of Clinical, Public and Preventive Medicine, University of Campania “L. Vanvitelli”, Naples, Italy 5Departm...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
This study was carried out in strict accordance with recommendations of the National Institutes of Health guide for the care and use of Laboratory animals. Before undergoing the experimental work, the protocol was approved by the Comité Institutionnel de Protection des Animaux (CIPA) of UQAM (Permit Number: 0515-R3–759-0516). After a 3-day acclimatization period at UQAM’s animal facility, young (100–125 g; approximately 4 weeks old) male Wistar rats (Charles River, St-Constant, QC, Canada) were randomly fed with a regular chow diet (RCD; n = 13) or HFD (n = 12) for 14&...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
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