Theses and Dissertations

Issuing Body

Mississippi State University


Chambers, Janice

Committee Member

Chambers, Howard

Committee Member

Carr, Russell

Date of Degree


Original embargo terms

MSU Only Indefinitely

Document Type

Graduate Thesis - Campus Access Only


Veterinary Medical Science

Degree Name

Master of Science


College of Veterinary Medicine


Veterinary Medical Science Program


The aim of this study was to determine the ability of twenty novel substituted phenoxyalkyl pyridinium oximes to reactivate phosphylated acetylcholinesterase (AChE) in peripheral rat tissues, in vitro, inhibited by organophosphate anticholinesterase nerve agent surrogates. A sarin surrogate, phthalimidyl isopropyl methylphosphonate (PIMP), and a VX surrogate, 4-nitrophenyl ethyl methylphosphonate (NEMP), were used to inhibit AChE in skeletal muscle and serum samples. Reactivation of the widely used oxime 2-PAM was tested for comparison with the novel oximes. The novel oximes displayed a range of 23-102% reactivation of AChE in vitro across both tissue types. Most of the novel oximes tested in the present study demonstrated a higher percent reactivation of AChE, than 2-PAM. Therefore, these novel oximes have the potential to be effective antidotes used during the treatment of OP toxicity.