1524 tion of oxygen from molecular oxygen but not from water (1). This observa-tion was in
sharp contrast to the con-cept of biological oxidation held at that time, and it paved the way …

The establishement of the circadian rhythm of cholesterol 7α‐hydroxylase activity requires
protein and RNA synthesis. The spontaneous decrease of the enzymic activity, at the end of …

No.e phrine (amole) nine Page 1 The pure acid was tested on strains of Escherichia coli
and Micrococcus pyogenes by incubating both organisms in antibiotic assay media fortified …

An enzymatic preparation from human brain converts tryptamine to tryptoline (9H-1,2,3,4-tetrahydropyrido[3,4-b]indole)
in the presence of 5-methyltetrahydrofolic acid. Similarly, N-…

A new assay is described to measure the activity of cholesterol 7α‐hydroxylase and compared
to the conventional 14 C method used by other investigators. This method is based on the …

It is not known whether all the physiological and biochemical events produced by the release
or the administration of biogenic amines are caused by the compounds themselves or by …

The result of the enzymatic reaction between indoleamines and a donor of one-carbon units,
5-methyl-tetrahydrofolic acid (5-MTHF), has been thought to be an N- or O-methylation of …

Studies with 18 O 2 and H 2 18 O have shown that oxidative O-demethylation of p-methoxyacetanilide
by liver microsomes involves the cleavage of the oxygen methyl bond with no …

Inbred mouse strains exhibit differences in brain cyclic AMP concentrations. In two mouse
strains, we have shown that both the tendency for aggressive attack and high brain cyclic AMP …

We present evidence that cyclic AMP is decreased in human cerebrospinal fluid after
ethanol ingestion under the conditions studied. In addition, there is a significant association …