Search PubMed⌕ Search

Biomedical subjects

G Rücker

Publications and source records attributed to G Rücker.

At least 55 records · Page 3Linked to original sources
PubMed1978

[Isolation and pharmacodynamic activity of the sesquiterpene valeranone from Nardostachys jatamansi DC].

The known sesquiterpene valeranone (= Yatamanson) was isolated from the subterranian parts of Nardostachys yatamansi (DC). It was pharmacologically investigated in animal experiments of sedative, tranquilizing and antihypertensive properties. In some experiments, typical for tranquilizers, certain activities could be demonstrated such as the prolongation of barbiturate hypnosis, the impairment of rotarod performance, an anticonvulsive activity on electric shock and potentiation of the body-temperature lowering activity of reserpine. In three other pharmacological models an anti-ulcer action was detected. In general the activity of valeranone was lower than those of the standard substances used. As regards the hypotensive property only a weak activity was demonstrated. In toxicological studies on rats and mice an oral LD50 of greater than 3160 mg/kg was found, which suggests the possibility of a therapeutically useful dose ratio.

Aggression↗
PubMed1976

[Investigations of the decomposition and detection of morazone by thin-layer- and gas-liquid-chromatography].

Three decomposition products of Morazone (ingredient of the pharmaceutical preparation Rosimon-Neu) were observed following heat treatment in acid medium (hydrochloric or tartaric acid). These products were isolated by TLC and identified as bis-antipyryl-methane, phenmetrazine and 4-hydroxymethyl-antipyrine by mass spectrometry and IR-spectroscopy and 1H-nuclear magnetic resonance. Morazone and the metabolite phenmetrazine may be extracted from alkaline urine using chloroform, however acid hydrolysis (pH 1) of the urine before alkaline extraction will improve the sensitivity of detection of morazone by producing the metabolite phenmetrazine in addition to bis-antipyrylmethane. The metabolite 4-hydroxymethyl-antipyrine is barely detectable by TLC from alkaline extraction of urine.

Antipyrine↗