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  • Title: [Alteration of the ATP-ase Mg++ and Mg++ Na+ K+ activities of the central nervous system of Periplaneta americana L. after sonification. (author's transl].
    Author: Holzhacker EL, Fell D, Giannotti O.
    Journal: Arq Inst Biol (Sao Paulo); 1977; 44(4):215-24. PubMed ID: 149528.
    Abstract:
    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.
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