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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gundewar, Susheel Lefer, David J. |
| Description | Author Affiliation: Gundewar S ( Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.) |
| Abstract | Sphingolipids are known to play a significant physiological role in cell growth, cell differentiation, and critical signal transduction pathways. Recent studies have demonstrated a significant role of sphingolipids and their metabolites in the pathogenesis of myocardial ischemia-reperfusion injury. Our laboratory has investigated the cytoprotective effects of N,N,N-trimethylsphingosine chloride (TMS), a stable N-methylated synthetic sphingolipid analogue on myocardial and hepatic ischemia-reperfusion injury in clinically relevant in vivo murine models of ischemia-reperfusion injury. TMS administered intravenously at the onset of ischemia reduced myocardial infarct size in the wild-type and obese (ob/ob) mice. Following myocardial I/R, there was an improvement in cardiac function in the wild-type mice. Additionally, TMS also decreased serum liver enzymes following hepatic I/R in wild-type mice. The cytoprotective effects did not extend to the ob/ob mice following hepatic I/R or to the db/db mice following both myocardial and hepatic I/R. Our data suggest that although TMS is cytoprotective following I/R in normal animals, the cytoprotective actions of TMS are largely attenuated in obese and diabetic animals which may be due to altered signaling mechanisms in these animal models. Here we review the therapeutic role of TMS and other sphingolipids in the pathogenesis of myocardial ischemia-reperfusion injury and their possible mechanisms of cardioprotection. |
| ISSN | 00063002 |
| Journal | Biochimica et Biophysica Acta (BBA) - Reviews on Cancer |
| Issue Number | 3 |
| Volume Number | 1780 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2008-03-01 |
| Publisher Place | Netherlands |
| Access Restriction | Open |
| Subject Keyword | Myocardial Reperfusion Injury Drug Therapy Sphingolipids Therapeutic Use Sphingosine Analogs & Derivatives Animals Classification Biochemistry |
| Content Type | Text |
| Resource Type | Article |
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