... vasotocin (AVT) in concentrations similar to those contained in the fetal pineals produced the same COH inhibition. Trypsin, tyrosinase, and sodium thioglycollate completely abolished the COH inhibiting activity of fetal pineal extracts, as well as its antidiuretic and frog bladder activities. Also, trypsin...

...); and caudate nuclei (9). AD activity was Sodium thioglycollate found in the samples derived from the hypophysis, hypo­ thalamus, thalamus, and mesencephalon (brain region 1 to 7), while samples of the temporal cortex (8) and the caudate nuclei (9) showed no activity. The AD activity present in the hypophysis...