The actions of lophotoxin on synaptic acetylcholine receptors were investigated, using the cholinergic synapse between the lateral filiform hair sensory neurone and giant interneurone 3 in the first-instar cockroach Periplaneta americana. Lophotoxin (1-Oxl0~moll~) blocked transmission without affecting the passive or active membrane properties of the preand postsynaptic neurones, and without af...

-The intracellular distribution and maximal activities of phosphorylase, trehalase, all the enzymes of glycolysis, NAD and FAD-linked glycerol 3-phosphate dehydrogenase, arginine kinase, and adenylate kinase have been determined in the fat body of the adult male cockroach Periplaneta americana. Phosphorylase activity is predominantly in the soluble form but some can be sedimented. Both forms of...

In addition to the pharmacological effects of Periplaneta americana extracts (PAEs), including their antitumor, hepatic protection, antioxidant, antibacterial, anti-inflammatory, and tissue regeneration characteristics, mucosal restorative have also attracted significant attention. The mucosa serves as a “gateway” into body its functions include surveillance clearance bacteria pathogens; it has...