Abstract:
:Thyroid hormone pretreatment was indicated to increase tissue tolerance to ischemia-reperfusion injury (IRI) in various organs, but the underlying molecular mechanisms remains largely unknown. Induction of heme oxygenase-1 (HO-1) protects organs against IRI. The present study investigated the effect of thyroid hormone on HO-1 expression and the possible relation between HO-1 and the thyroid hormone induced renal protection. T(3) administration in rat kidneys induced HO-1 expression in a time-dependent and dose-dependent way, and its expression was accompanied with significant depletion of reduced glutathione and increase in malondialdehyde content, showing a moderate oxidative stress that turns to normal level 48 h after drug injection. Thyroid hormone pretreatment (10 μg/100g body weight) 48 h before IR procedure significantly decreased serum creatinine and urea nitrogen and preserved renal histology, with significant reduction of parameters about oxidative stress and over-expression of HO-1 compared with that of IR group. In conclusion, T(3) administration involving oxidative stress in kidney exerts significant enhancement of HO-1 expression which may, at least in part, account for the renal preconditioning induced by T(3).
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Li F,Lu S,Zhu R,Zhou Z,Ma L,Cai L,Liu Zdoi
10.1016/j.mce.2011.03.019subject
Has Abstractpub_date
2011-06-06 00:00:00pages
54-62issue
1-2eissn
0303-7207issn
1872-8057pii
S0303-7207(11)00179-1journal_volume
339pub_type
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