6533b829fe1ef96bd128ab82

RESEARCH PRODUCT

Funktionelle Bedeutung der Freisetzung von Dihydroxyephedrin und Dihydroxypseudoephedrin als ?falschen? sympathischen �bertr�gerstoffen am Herzen

E. SprengerE. MuschollR. Lindmar

subject

Pharmacologymedicine.medical_specialtyEndocrinologyStereochemistryChemistryRabbit heartInternal medicinePharmacology toxicologymedicinePotencyFunctional significanceGeneral Medicine

description

The experiments were carried out in order to investigate the functional significance of substitution of noradrenaline by amines known to exert actions weaker than those of the natural transmitter. On the isolated rabbit heart the potency relative to noradrenaline of (±)-dihydroxyephedrine to increase the rate was 1/4 and the potency to augment the contractile amplitude was 1/6. The corresponding values for (±)-dihydroxypseudoephedrine were 1/67 and 1/140, respectively.

https://doi.org/10.1007/bf00585355