| New lipoic acid derivative drug sodium zinc dihydrolipoylhistidinate prevents cardiac dysfunction in an isolated perfused rat heart model. | |
| | |
MedLine Citation:
|
PMID: 21169823 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
OBJECTIVE:: Myocardial ischemia/reperfusion injury is a life-limiting condition. Reactive oxygen species are released upon reperfusion, resulting in damage to myocardial cells. Accordingly, antioxidant drugs have been shown to protect the myocardium against ischemia/reperfusion injury. The purpose of the present study was to determine the cardioprotective effects of the new lipoic acid-derivative drug sodium zinc dihydrolipoylhistidinate in a global ischemia isolated perfused rat heart model. DESIGN:: Animals were randomly divided into five groups: 1) normal group, 2) control ischemia/reperfusion group, 3) high-dose sodium zinc dihydrolipoylhistidinate (1 ng/mL) plus ischemia/reperfusion group, 4) medium-dose sodium zinc dihydrolipoylhistidinate (0.1 ng/mL) plus ischemia/reperfusion group, or 5) low-dose sodium zinc dihydrolipoylhistidinate (0.01 ng/mL) plus ischemia/reperfusion group. SETTING:: University medical center research laboratory. SUBJECTS:: Male Sprague-Dawley rats weighing 250-300 g. MEASUREMENTS AND MAIN RESULTS:: Hearts underwent ischemia/reperfusion after isolation with or without sodium zinc dihydrolipoylhistidinate treatment. We then conducted cardiac histopathology and transmission electron microscopy analyses and assessed cardiac function. In addition, we examined the effects of sodium zinc dihydrolipoylhistidinate on ischemia/reperfusion-induced mitochondrial dysfunction. We found that cardiac dysfunction and mitochondrial damage were significantly reduced after reperfusion by sodium zinc dihydrolipoylhistidinate treatment. However, only rats treated with high-dose sodium zinc dihydrolipoylhistidinate showed improved cardiac function. Furthermore, treatment with sodium zinc dihydrolipoylhistidinate significantly improved mitochondrial function in vitro. CONCLUSIONS:: These findings suggest that sodium zinc dihydrolipoylhistidinate attenuates ischemia/reperfusion-induced myocardial dysfunction in rats. Furthermore, sodium zinc dihydrolipoylhistidinate exerted cardioprotective effects via preservation of mitochondrial function. Taken together, our results strongly support the potential therapeutic role of sodium zinc dihydrolipoylhistidinate in the treatment of ischemia/reperfusion injury. |
| | |
Authors:
|
Satoshi Hagiwara; Yasushi Teshima; Naohiko Takahashi; Hironori Koga; Tetsunori Saikawa; Takayuki Noguchi |
Related Documents
:
|
21085823 - Lung alterations in a rat model of diabetes mellitus: effects of antioxidant therapy. 21541943 - Korean red ginseng prevents gentamicin-induced hearing loss in rats. 11578103 - Colon-specific delivery of budesonide from microencapsulated cellulosic cores: evaluati... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2010-12-16 |
Journal Detail:
|
Title: Critical care medicine Volume: - ISSN: 1530-0293 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
|
Created Date: 2010-12-20 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0355501 Medline TA: Crit Care Med Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
From the Departments of Anesthesiology and Intensive Care Medicine (SH, HK, TN) and Laboratory Examination and Diagnostics (YT, NT, TS), Oita University Faculty of Medicine, Oita, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Use of the Airtraq laryngoscope for emergency intubation in the prehospital setting: a randomized co...
Next Document: Implementation of a real-time computerized sepsis alert in nonintensive care unit patients.