Similar to other OP pesticides, Fenitrothion (FNT) (O,O-dimethyl-O-(3-methyl-4-nitrophenyl) phosphorothioate) also exerts its adverse effect by the accumulation of neurotransmitter acetylcholine (ACh) due to the inhibition of acetylcholinesterase (AChE), which leads to severe consequences such as seizures, respiratory failure, and eventually death [4]. This evidence concerns the gene ACHE and respiratory failure.