Immunopharmacological properties of azepino [2, 1-b] quinazolin-12(6H)-one-7, 8, 9, 10-tetrahydro (RLX)

  • Sharma M
  • Khajuria A
  • Kaul A
 et al. 
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The effect of azepino [2,1-b]quinazolin-12(6H)-one-7, 8, 9, 10-tetrahydro (RLX) was studied on cell-mediated and humoral components of the immune system. In single (50, 100 and 200 mg/kg) and multiple (6.25, 12.50, 25 and 50 m/kg) oral dose schedules RLX significantly reduced the early (4 h) and delayed (24 and 48 h) hypersensitivity reactions to SRBC in mice. Daily oral administration of RLX (25, 50 and 100 mg/kg) produced a dose-related reduction in developing adjuvant arthritis in rats. In carrageenan-induced pleurisy in rats RLX (25, 50 and 100 mg/kg p.o.) caused a marked reduction in the volume of pleural exudate (25.26 - 59.64%) and infiltration of leucocytes (28.75 - 50.29%) into the pleural cavity. RLX produced marked inhibition of humoral antibody synthesis both in mice and rats and that of complement fixing antibody in mice. It was not cytotoxic and showed no appreciable effect on the responsiveness of splenocytes to mitogens. The observed effect of RLX on cell-mediated and humoral immune responses does not appear to be the result of general toxicity. © 1992.

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  • M. L. Sharma

  • A. Khajuria

  • A. Kaul

  • D. Chand

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