Intracellular Localization of Monoamine Oxidase in Mammalian Salivary Glands

MINORU HARADA ¹, HARUHISA YA ¹, GJIRO NAKANO ¹, HIROSHI KUZUYA ¹, and TOSHIHARU NAGATSU ¹

¹ Department of Biochemistry, School of Dentistry, Aichi-Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Japan

Intracellular distribution of monoamine oxidase in the submaxillary gland of the human, cat, rat, and bovine, and in the parotid gland of the bovine, were determined using kynuramine as a substrate. The excretion of the enzyme in the parotid saliva of humans was also examined by sensitive fluorometric methods.