4.1 Article

Allopurinol preconditioning attenuates renal ischemia/reperfusion injury by inhibiting HMGB1 expression in a rat model

Journal

ACTA CIRURGICA BRASILEIRA
Volume 31, Issue 3, Pages 176-182

Publisher

ACTA CIRURGICA BRASILEIRA
DOI: 10.1590/S0102-865020160030000005

Keywords

Inflammation; Ischemia; Reperfusion; Allopurinol; Apoptosis; Rats

Categories

Funding

  1. National Natural Science Foundation of China [81400753]
  2. Hubei Natural Science Foundation [2014CFB362]
  3. bureau of public health of Hubei Province [JX6B14]
  4. project of Wuhan Municipal Science and Technology Bureau [2013062301010808]

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PURPOSE: To investigate the potential effects of pretreatment with allopurinol on renal ischemia/reperfusion injury (IRI) in a rat model. METHODS: Twenty four rats were subjected to right kidney uninephrectomy were randomly distributed into the following three groups (n=8): Group A (sham-operated group); Group B (ischemic group) with 30 min of renal ischemia after surgery; and Group C (allopurinol + ischemia group) pretreated with allopurinol at 50 mg/kg for 14 days. At 72 h after renal reperfusion, the kidney was harvested to assess inflammation and apoptosis. RESULTS: Pretreatment with allopurinol significantly improved renal functional and histological grade scores following I/R injury (p< 0.05). Compared with Group B, the expression levels of caspase-3 and Bax were markedly reduced in Group C, meanwhile, whereas expression of bcl-2 was clearly increased (p< 0.05). A newly described marker of inflammation, High Mobility Group Box 1(HMGB1), showed reduced expression in Group C (p< 0.05). CONCLUSION: Pretreatment with allopurinol had a protective effect on kidney ischemia/reperfusion injury, which might be related to the inhibition of HMGB1 expression.

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