The effect of Rho kinase inhibitor Y-27632 on endotoxemia-induced intestinal apoptosis in infant rats


ÖZDEMİR D., CİLAKER MIÇILI S., TUĞYAN K., Dagdelen M. K. , DERİNÖZ GÜLERYÜZ O. , Guneli E.

JOURNAL OF MOLECULAR HISTOLOGY, cilt.43, sa.1, ss.81-87, 2012 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/s10735-011-9379-6
  • Dergi Adı: JOURNAL OF MOLECULAR HISTOLOGY
  • Sayfa Sayıları: ss.81-87

Özet

The aim of this study was to evaluate the effect of Rho kinase inhibitor, Y-27632 on the intestinal apoptosis in endotoxemic infant rats. Wistar albino 15-17-day-old rat pups (n = 21) were randomized to three experimental groups: (1) controls; (2) endotoxemia (LPS); and (3) endotoxemia treated with Y-27632 (LPS + Y-27632). Endotoxemia was induced in rats by intraperitoneal (i.p) injection of lipopolysaccharide (Escherichia coli serotype 0111:B4; 10 mg/kg). Y-27632 was administered 5 mg/kg i.p at three times, just, 8 and 16 h after LPS injection. Twenty-four hours after LPS injection, intestinal apoptosis was assessed by hematoxylin and eosin staining, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay and immunohistochemistry for active caspase-3. Endotoxemia induced extensive apoptotic injury in the intestinal tissues. The administration of Y-27632 to endotoxemic infant rats caused a marked decrease in the number of apoptotic cells in both intestinal epithelium and lamina propria. In conclusion, the inhibition of Rho kinase with Y-27632 diminished the intestinal apoptotic damage induced by endotoxemia in infant rats.