PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “PENTOLINIUM TARTRATE”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 73 records · Page 4Linked to original sources
PubMed1962

Effects of some guanidine derivatives on neuromuscular and ganglionic transmission.

The anticurare activity of some guanidine derivatives has been studied using the fowl sciatic nerve-gastrocnemius muscle preparation and the cat sciatic nerve-gastrocnemius and tibialis anterior muscle preparations. Among the compounds tested, and in decreasing order of potency, were NN-dimethylguanidine, N-methylguanidine, guanidine and N-aminoguanidine which antagonized or prevented tubocurarine or gallamine triethiodide-induced paralysis. None of the derivatives antagonized the effects of suxamethonium or decamethonium. NN-Dimethylguanidine, N-methylguanidine and guanidine antagonized or prevented the curare-like effects of magnesium without altering the activity of hemicholinium. At high doses NN-dimethylguanidine induced a decamethonium-like spastic paralysis in the fowl sciatic nerve-gastrocnemius muscle preparation. NN-Diethylguanidine, however, induced a tubocurarine-like flaccid paralysis. The derivatives possessing anticurare activity were also studied using the cat superior cervical ganglion-nictitating membrane preparation to check their possible effects against ganglionic blocking agents. Only guanidine antagonized or prevented the effects of hexamethonium, pentolinium and mecamylamine; it had no effect on the actions of pempidine and chlorisondamine. NN-Diethylguanidine was the only compound in the series to show a ganglionic blocking action.

Animals↗
PubMed1963

BRADYKININ: VASCULAR RELAXANT, CARDIAC STIMULANT.

Bradykinin infusion causes an increase in cardiac output in rats whether the autonomic nervous system is blocked or not. After autonomic blockade, bradykinin causes a lesser decrease in the total peripheral resistance but a greater increase in cardiac output, resulting in an elevation of arterial pressure. The increase in cardiac output is caused by a small increase in heart rate and a substantial increase in stroke volume. The fact that these increases are observed after autonomic blockade suggests that bradykinin increases cardiac output by direct stimulation of the heart.

Autonomic Nerve Block↗