Microchemical Studies on Plant Components. XXXIX

Studies on Plant Hypertensinase

Many plants contain an enzyme similar in most biological properties to the hypertensinase obtained from blood and some animal tissues, notably kidney and intestinal mucosa. Wheat bran is a rich source of the plant hypertensinase, and from it a potent, non-toxic preparation was made by the use of isoelectric and ammonium sulfate precipitation as the means of purification. Hypertensinase derived ...

Studies on Isolated Cell Components

The zonal ultracentrifuge was used to separate the subcellular components of rat liver brei into soluble phase, microsomal, mitochondrial, membranous fragments, and nuclear fractions during a single centrifugation. The centrifuge was run at 10,000 to 30,000 RPM for 15 to 240 minutes, and the rotor contained a 1200 ml sucrose gradient, varying linearly with radius from 17 to 55 per cent sucrose ...

Studies on Isolated Plant Protoplasts

Isolated tomato fruit protoplasts have been observed to take up both tobacco mosaic virus and ferritin by the process of pinocytosis. These studies have involved electron microscopic observations on thin sections of suitably fixed and embedded material. These electron microscopic studies have also shown that very close association exists between the nucleus and chloroplasts in these proto­ plas...

Microchemical identification of amidone.

Clinical studies of induction agents. XXXIX: CT1341, a new steroid anaesthetic.

CT1341 is a new intravenous anaesthetic which appears to have overcome the disadvantages of the earlier steroid. The formulation is a mixture of two closely related steroids with Cremophor EL and the optimum dose for induction is 50-60 (J/kg though much larger doses can be given without serious side effects. As the dose is increased the incidence of muscle movements, respiratory depression and ...