Effect of repeated hypoxic preconditioning on renal ischemia-reperfusion-induced hepatic dysfunction in rats / 南方医科大学学报
Journal of Southern Medical University
;
(12): 149-153, 2015.
Article
in Chinese
| WPRIM
| ID: wpr-239226
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effect of repeated hypoxic preconditioning (RHP) on renal ischemia-reperfusion-induced hepatic dysfunction in rats and the underlying mechanism.</p><p><b>METHODS</b>A total of 120 normal SD rats were randomly divided into 4 groups (n=40), namely RHP surgical group, RHP sham-operated (RHPS) group, nonhypoxic surgical group (IRI group), and nonhypoxic sham-operated group (S group). The rats in the hypoxic groups were exposed to hypoxia in a hypoxic chamber for 5 days prior to establishment of renal ischemia-reperfusion model by resection of the right kidney and clamping the left renal hilum. Serum alanine aminotransferase (ALT), IL-17 A, TNF-a, liver superoxide dismutase (SOD) and nitric oxide (NO) were detected at 2, 8 and 24h after reperfusion, and Western blotting was used to determine the expression of p-PI3K and p-AKT;HE staining was used to observe the structural changes in the liver.</p><p><b>RESULTS</b>Compared with IRI group, RHP group showed significantly milder hepatic damage, lower ALT levels and higher NO levels at 2, 8, and 24 after reperfusion (P<0.05); TNF-a levels were lowered at 24 h (P<0.05) and SOD increased at 8 h after the reperfusion (P<0.05). Compared with S group, IRI group and RHP group showed significantly higher IL-17A levels (P<0.05) but without significant difference between the latter two groups (P>0.05). The expressions of p-PI3K and P-Al<t in RHP group were significantly higher than those in IRI group (P<0.05), especially at 8 h after reperfusion (P<0.05).</p><p><b>CONCLUSION</b>Repeated hypoxic preconditioning can attenuate hepatic injury induced by renal ischemia-reperfusion injury in rats.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Superoxide Dismutase
/
Blood
/
Reperfusion Injury
/
Tumor Necrosis Factor-alpha
/
Rats, Sprague-Dawley
/
Ischemic Preconditioning
/
Phosphatidylinositol 3-Kinases
/
Interleukin-17
/
Alanine Transaminase
Type of study:
Prognostic study
Limits:
Animals
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2015
Type:
Article
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