Date of Graduation

1972

Document Type

Dissertation

Committee Member

R.E. McCafferty

Committee Member

D.P. Westfall

Committee Member

J.J. McPhillips

Committee Member

W.W. Fleming

Committee Member

C.J. Malanga

Abstract

This study was undertaken to further define the characteristics of subsensitivity produced by chronic administration of cholinesterase inhibitors and to attempt to elucidate a possible mechanism by which it occurs. Administration of disulfoton, echothiophate , parathion and OMPA to rats for eight days resulted in a decreased sensitivity of segments of ileum to carbachol and a marked inhibition of both true and total cholinesterase. The results indicate that a relationship between the degree of subsensitivity and the extent of cholinesterase inhibition may exist.

Share

COinS