Xenoestrogen
Xenoestrogens are clinically significant because they can mimic the effects of endogenous estrogen and thus have been implicated in precocious puberty and other disorders of the reproductive system.
Serenic
Agonists and antagonists of the receptors for the endogenous hormones oxytocin and vasopressin, respectively, have been shown to decrease aggressive behavior in scientific research, implicating them in the normal regulation of pathways involving aggressive behavior in the brain. Certain neurosteroids, such as allopregnanolone, also appear to play a role in the regulation of aggression, including, notably, sexually-dimorphic aggressive behavior. The sex hormones testosterone and estradiol also regulate aggression.