Modification of radiation induced damage in mouse intestine by WR-2721

K. S. Bisht, S. Prabhu, P. Uma Devi

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Intestinal protection in mice against radiation injury by WR-2721 (300 mg/kg body wt, ip, 30 min before irradiation) was studied after whole body gamma irradiation (0.5, 1.5, 3.0, 4.5 or 6.0 Gy). Crypt survival and induction of apoptosis, and abnormal mitoses in crypt cells in the jejunum were studied on day 1, 3 and 7 after irradiation. Irradiation produced a significant decrease in crypt survival, whereas apoptosis and abnormal mitoses showed a significant increase from sham-treated control animals. Maximum changes in all the parameters were observed on day I after irradiation and the effect increased linearly with radiation dose. There was recovery at later intervals, which was inversely related to radiation dose. WR-2721 pre-treatment resulted in a significant increase in the number of surviving crypts, whereas the number of apoptotic cells in the crypts showed a significant decrease from respective irradiated controls on day 1 after exposure. The recovery was also faster in WR-2721 pre- treated animals. It is concluded that WR-2721 protects against gastrointestinal death by reducing radiation induced cell death, thereby maintaining a higher number of stem cells in the proliferating compartment.

Original languageEnglish
Pages (from-to)669-674
Number of pages6
JournalIndian Journal of Experimental Biology
Volume38
Issue number7
Publication statusPublished - 01-01-2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Molecular Biology
  • Cell Biology

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