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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Morsy, Mohamed D. Bashir, Salah O. |
| Description | Country affiliation: Saudi Arabia Author Affiliation: Morsy MD ( Physiology Department, Faculty of Medicine, King Khalid University, Abha, Saudi Arabia. morsydarwesh@yahoo.com) |
| Abstract | Ischemic-reperfusion procedures targeting a specific organ often results in remote multiple organ injuries mediated possibly by heightened oxidative stress levels. As the kidney is one of the most vulnerable organs for ischemic oxidative stress, the aim of the present study was to confirm the occurrence of renal complication secondary to spinal cord ischemic-reperfusion injury (SC-IRI) induced by aortic clamping. The study also investigated the possible prophylactic effect of long-term administration of -tocopherol ( -TOL) against high level of renal oxidative stress and inflammatory processes induced by SC-IRI. In this study, a total of 60 male Sprague-Dawley rats were randomly divided into five equal groups: C group underwent no surgery; CE group received -TOL 600 mg/kg intramuscular twice weekly for 6 weeks; S group were subjected to laparotomy without clamping of the aorta; SE group were handled as S group and treated with -TOL as group CE; SC-IRI group were subjected to laparotomy with clamping of the aorta just above the bifurcation of the aorta for 45 min, then the clamp was released for 48 h for reperfusion. SC-IRIE group was subjected to IRI as in group SC-IRI and was injected with -TOL in the same dose and route as -TOL-treated control group. SC-IRI resulted in increases in serum creatinine, blood urea nitrogen, plasma nitrite/nitrate level, serum tumor necrosis factor alpha, renal tissue homogenate level for malondialdehyde, superoxide dismutase and prostaglandin E2. Long-term prophylactic treatment with -TOL resulted in amelioration of the renal functional disturbances and all measured parameters of oxidative stress and inflammation. Ischemic reperfusion injury of the spinal cord induced some remote renal functional disturbances although some of the observed changes may have resulted from decreased renal blood flow due to the hypotension induced during the procedure. Prophylactic long-term -TOL administration guards against the renal function disturbances an effect that can be attributed, at least partially, to improvement of the renal pro-oxidant/antioxidant balance and inhibition of the inflammatory processes. |
| File Format | HTM / HTML |
| ISSN | 11387548 |
| Issue Number | 3 |
| Volume Number | 69 |
| e-ISSN | 18778755 |
| Journal | Journal of Physiology and Biochemistry |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2013-09-01 |
| Publisher Place | Spain |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Physiology Discipline Biochemistry Kidney Drug Effects Reperfusion Injury Drug Therapy Spinal Cord Alpha-tocopherol Pharmacology Animals Aorta Injuries Blood Urea Nitrogen Creatinine Blood Dinoprostone Injections, Intramuscular Blood Supply Metabolism Physiopathology Kidney Function Tests Male Malondialdehyde Oxidative Stress Rats Rats, Sprague-dawley Superoxide Dismutase Tumor Necrosis Factor-alpha Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Medicine Biochemistry |
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