AI Article Synopsis
- - The study investigates how the acute administration of atorvastatin (a statin) affects the heart's protective response (Ischemic Postconditioning, IPC) in rats with high cholesterol, specifically looking at infarct size after an ischemic event.
- - Results show that the combination of atorvastatin and IPC significantly reduces heart tissue damage compared to other treatment groups, with changes in the activation of specific signaling pathways (PI3K/Akt and MAPK/ERK) being observed.
- - The conclusions suggest that the protective benefits of IPC and atorvastatin in high cholesterol conditions are linked more to the activation of MAPK/ERK than to PI3K/Akt pathways.
Article Abstract
Background: Ischemic Postconditioning (IPC) reduces ischemia/reperfusion (I/R) injury under normal conditions. HMG-CoA reductase inhibitors (statins), which inhibit the synthesis of mevalonate, can interfere with the cardioprotective effect of IPC. However, the beneficial role of IPC in hyperlipidemic patients, post-acute administration of statins remains unknown. This study was to determine if acute administration of atorvastatin affect the infarct size-limiting effect of IPC in hyperlipidemic rats.
Results: Compared to control group, infarct size decreased more significantly in atorvastatin+IPC and atorvastatin+IPC+wortmannin groups than IPC or atorvastatin+IPC+PD98059 groups. Phosphorylation of PI3K/Akt was attenuated in atorvastatin + IPC+ wortmannin group, phosphorylation of P42 MAPK/ERK was increased in atorvastatin+IPC and atorvastatin+IPC+wortmannin groups.
Materials And Methods: Ninety four-weeks old male SD rats fed with cholesterol enriched diet for six weeks were randomized into nine groups ( = 10/group) - sham group, control group, IPC group, atorvastatin group, wortmannin group, PD98059 group, atorvastatin+IPC group, atorvastatin+IPC+wortmannin group and atorvastatin+IPC+PD98059 group. Atorvastatin was administered orally 12 hours before myocardial reperfusion.
Conclusions: Post-translational activation of P42 MAPK/ERK, rather than PI3K/Akt, participates in the net protective effect of IPC and atorvastatin in hyperlipidemia.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5589651 | PMC |
| http://dx.doi.org/10.18632/oncotarget.19232 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Formulation and clinical evaluation of hyaluronic acid nanogel in treatment of tear trough: Nano-flipping from injectable fillers to topical nanofillers.
Pharm Dev Technol
January 2025
Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Alexandria University, Egypt.
Tear trough deformity (TTD) is a significant cosmetic concern, with current treatments relying primarily on invasive injectable fillers, which are costly and carry risks of complications. Despite the widespread use of hyaluronic acid (HA) in cosmetic applications, its poor dermal permeation has limited the development of effective topical fillers for TTD.This study aim to develop and evaluate a novel hyaluronic acid nanogel (nanofiller, NF) as a non-invasive topical filler for TTD.
View Article and Find Full Text PDFLaetrile, known as vitamin B17, is often used interchangeably with amygdalin. Laetrile is a semi-synthesis product of amygdalin, whereas amygdalin is a naturally occurring substance in many plants. Both compounds have a nitrile functional group that, when activated by the intestinal enzyme β-glucosidases, releases hydrogen cyanide.
View Article and Find Full Text PDFGestational trophoblastic disease: understanding the molecular mechanisms of placental tumours.
Dis Model Mech
January 2025
Department of Microbiology, Trinity College, Dublin D02 VF25, Ireland.
Gestational trophoblastic disease (GTD) describes a group of rare benign and cancerous lesions originating from the trophoblast cells of the placenta. These neoplasms are unconventional entities, being one of the few instances in which cancer develops from the cells of another organism, the foetus. Although this condition was first described over 100 years ago, the specific genetic and non-genetic drivers of this disease remain unknown to this day.
View Article and Find Full Text PDFInternationally, vaccination rates among adolescents with intellectual and developmental disability (IDD) are lower than those of the general population. Little research has addressed this issue. This study investigates the experiences of vaccinating adolescents with IDD in special education settings in Australia, with a focus on student engagement.
View Article and Find Full Text PDFAdvance care planning intervention in chronic kidney care: A qualitative evaluation.
J Ren Care
March 2025
Department of Nephrology, Odense University Hospital, Odense, Denmark.
Background: Patients with chronic kidney disease and their families request early and continuous advance care planning. Based on user involvement, an advance care planning intervention was developed to support patients, family members and healthcare professionals (HCPs) in advance care planning conversations in a nephrology outpatient setting.
Objective: To explore the experiences and perceptions of an advance care planning intervention among patients with chronic kidney disease, family members and healthcare professionals.
Want 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!