Biomedical subjects

K Kaemmerer

Publications and source records attributed to K Kaemmerer.

57 records · Page 4Linked to original sources

PubMedDate not supplied

[Intermediary effectiveness of procaine and procaine metabolites following oral administration].

The influence of orally administrated procaine hydrochloride and of its metabolites diethylaminoethanol, monoethylaminoethanol and ethanolamine on specific intermediary processes in rats was tested. While the animals got procaine hydrochloride in a single dose or via food the incorporation rate of amino acids in protein was measured in homogenisates of liver tissue by the incorporation of a mixture of 14C-amino acids. Procaine hydrochloride, the commercial product K. H. 3, as well as diethylaminoethanol, monoethylaminoethanol and ethanolamine increased the amino acid incorporation rate in a dose and time dependent mode, while p-aminobenzoic acid remained without any effect. The dose of procaine hydrochloride inducing a maximal reaction was in the range of 50 to 100 mg/kg b. w. (250 to 500 mg/kg food). The minimal active dose was nearly at 10 mg/kg b. w. Paying regard to a metabolic factor of 10 the effective dose-range is nearly the dose used in experience with human beings to influence geriatric complaints. In the study described here haematoporphyrine (a component of the commercial product K. H. 3, not absorbed) shows no specific intermediary effect. May be it promotes the intestinal absorption of procaine hydrochloride by protection against intestinal hydrolysis. The intermediary effect of procaine hydrochloride is to measure on cellular or subcellular level without compatibility to the activity as a local anaesthetic. With regard to other intermediary effects mentioned in the literature like growth promotion or inhibition of monoamine oxidase activity, it is discussed whether the increase of the hepatic amino acid incorporation rate is corresponding to geriatric experiences made with procaine hydrochloride.

Animals↗

PubMedDate not supplied

[Orienting study of the modification of age-related changes by procaine in the pig].

In 3 and 14 years old mini pigs age dependent changes as well as the opportunity to modify them with a combination of procaine and haemotoporphyrine, administered daily over 6 weeks in doses of 150 mg procaine hydrochloride per animal (3-5 mg/kg b.w.), were tested. In serum a small age dependent increase in catecholamine concentration was recognized, while the concentration of cortisol was distinctly increased in the older pigs. The monoamine oxidase activity was increased in the liver of the 14 years old pigs while no differences were found in cerebral cortex. Under procaine the old animals showed a clear decrease in monoamine oxidase activity as well as in cholinesterase activity. Furthermore an age dependent decrease of the thymidine triphosphate incorporation rate as well as the amino acid incorporation rate was found in liver, cerebral cortex, small intestine and spleen. Jejunal enzyme activities also were decreased age dependently. Otherwise procaine hydrochloride induced an increase in intestinal enzyme activities of both animal groups. These findings demonstrate that different intermediary processes change age dependently. Also it is shown, that procaine hydrochloride develops intermediary effects.

Aging↗

PubMedDate not supplied

[Effect of procaine and procaine metabolites on coenzyme A and acetyl coenzyme A concentration in various tissues of the rat].

In rats treated with procaine hydrochloride, diethylaminoethanol, monoethylaminoethanol, ethanolamine, as well as a combination of procaine hydrochloride and haematoporphyrine the ratio of acetyl coenzyme A and coenzyme A clearly was enhanced in the liver and to a minor extent in the cerebellum. In the tissue of cerebral cortex, heart, muscle and duodenum no corresponding effects were demonstrated. These findings, showing a further intermediary effect of orally administered procaine, can be interpreted as an influence in intermediary energy utilisation.

Acetyl Coenzyme A↗