In the heart there are two different subtypes of beta-adrenergic receptors - beta1 and beta2 - which are activated by the stress hormones adrenaline and noradrenaline. They both trigger the strongest ...
January 18, 2010 — Individuals with treatment-resistant depression tend to have the G/G genotype associated with higher levels of 5-HT 1A autoreceptors, and turning off some of those autoreceptors ...