11. Dopexamine may potentiate the effects of other catecholamines like noradrenaline. 12. Whether renalase actually oxidizes catecholamine substrates has been widely disputed. 13. Catecholamines are synthesized inside cells and sequestered in intracellular vesicles.14. Catecholamine receptors persisted in this wavering state for more than forty years.15. Its venom is neurotoxic and cardiotoxic, causing the release of catecholamines . 16. The urine test checks for substances called catecholamines that are made by neuroblastomas. 17. They block catecholamine reuptake, in addition to releasing catecholamines from nerve terminals. 18. They block catecholamine reuptake, in addition to releasing catecholamines from nerve terminals. 19. This is caused by catecholamine release and by infections. 20. Indolamines are a classification of monoamine neurotransmitter, along with catecholamines and ethylamine.