RESUMEN

A prolonged ultrasonic homogenization of a Periplaneta americana L. suspension of ganglia in a buffer solution pH 7,6 when compared with a Potter Elvehjem homogenization shows a marked reduction of Mg++ and (Mg++ + Na+ + K+) ATPase activities. Mg++ ATPase was not modified while the (Mg++ + Na+ + K+) ATPase was completely inhibited after 30 second ultrasonic homogenization. This probably results from an enzyme structure alteration caused by the ultrasonic treatment.

Asunto(s)

Sistema Nervioso Central/análisis , Cucarachas/análisis , Periplaneta/análisis , Adenosina Trifosfatasas/análisis , Animales , Sistema Nervioso Central/enzimología , Magnesio/análisis , Periplaneta/metabolismo , Potasio/análisis , Sodio/análisis