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Dexmedetomidine preconditioning inhibits the long term inflammation induced by renal ischemia/reperfusion injury in rats
Liu, Guiyong; Song, Hongfei; Qiu, Lili; He, Anren; Tong, Fangfang; Wan, Qifu; Wang, Xin; Xia, Yunfang; Huang, Lequn.
Afiliação
  • Liu, Guiyong; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Song, Hongfei; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Qiu, Lili; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • He, Anren; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Tong, Fangfang; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Wan, Qifu; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Wang, Xin; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Xia, Yunfang; Qianjiang central Hospital. Department of Urology. Hubei. CN
  • Huang, Lequn; Qianjiang central Hospital. Department of Urology. Hubei. CN
Acta cir. bras ; 31(1): 8-14, Jan. 2016. graf
Artigo em Inglês | LILACS | ID: lil-771854
Biblioteca responsável: BR1.1
ABSTRACT

PURPOSE:

To investigate the protective effects of dexmedetomidine (Dex) against renal ischemia/reperfusion injury (IRI).

METHODS:

Sprague-Dawley rats were randomly divided to sham group, IRI group and Dex group. The SD rats were subjected to 45 min of ischemia followed by eight weeks of reperfusion. Prior to ischemia, rats were either treated with Dex or not. Blood samples were collected for the detection of blood urea nitrogen (BUN) and creatinine (Cr) levels. Immunohistochemistry was performed for CD3 T-cell infiltrates. Real-time PCR and western blot were detected for the expression of TNF-α, IL-1β, ICAM-1, HMGB1 and TLR4.

RESULTS:

Compared with sham group, renal IRI significantly increased the serum levels of BUN and Cr. The H&E staining indicated that renal IRI resulted in obvious renal injury and immunohistochemistry found that there were more CD3 T-cell infiltrates in IRI group. Also, renal IRI upregulated the expression of TNF-α, IL-1β, ICAM-1, HMGB1 and TLR4. However, all these changes were alleviated by the treatment with Dex.

CONCLUSIONS:

Dexmedetomidine has beneficial effects on long term inflammation induced by renal ischemia/reperfusion injury. Its mechanisms may be achieved through inhibiting the HMGB1/TLR4 pathway to exert protective effects.
Assuntos


Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Traumatismo por Reperfusão / Dexmedetomidina / Injúria Renal Aguda / Rim Tipo de estudo: Estudo de etiologia Limite: Animais Idioma: Inglês Revista: Acta cir. bras Assunto da revista: CIRURGIA GERAL / Procedimentos Cir£rgicos Operat¢rios Ano de publicação: 2016 Tipo de documento: Artigo País de afiliação: China Instituição/País de afiliação: Qianjiang central Hospital/CN

Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Traumatismo por Reperfusão / Dexmedetomidina / Injúria Renal Aguda / Rim Tipo de estudo: Estudo de etiologia Limite: Animais Idioma: Inglês Revista: Acta cir. bras Assunto da revista: CIRURGIA GERAL / Procedimentos Cir£rgicos Operat¢rios Ano de publicação: 2016 Tipo de documento: Artigo País de afiliação: China Instituição/País de afiliação: Qianjiang central Hospital/CN
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