Mescaline-induced changes of brain-cortex ribosomes mescaline demethylase activity of brain-cortex soluble supernatant
Naunyn-Schmiedeberg s Archives of Pharmacology February 1, 1977 DOI: 10.1007/bf00498697 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Experimental study Peer reviewed |
|---|---|
| Population | Rat brain cortex slices |
| Interventions | mescaline p-methoxyacetanilide |
| Topics | Mescaline |
| Keywords | Cortex anatomy Demethylase Ribosome Brain cortex Cerebral cortex Pharmacology Biochemistry Hallucinogen Endocrinology |
| Citations | 2 |
| Key findings | Brain-cortex demethylase converts mescaline into demethylated derivatives at a rate one third that of a reference substrate. |
Abstract
Brain-cortex slices demethylate mescaline and p-methoxyacetanilide, a reference O-demethylating substrate, though the rate of demethylation of mescaline is about one third that of the reference substrate. The demethylase activity is localized mostly in the soluble supernatant (105 000 x g). It is purified 47-fold with respect to the demethylation of mescaline by ammonium sulfate precipitation and DEAE cellulose chromatography. The partially purified demethylase, which is stable for 3-5 days at -5 degrees C in the presence of dithiothreitol and glutathione and is inhibited by p-chloromercuribenzoate, has maximal activity at pH between 7.2 and 8.0. It demethylates mescaline into 3,4-dimethoxy-5-hydroxyphenethylamine and 3,5-dimethoxy-4-hydroxyphenethylamine and some unidentified derivatives.