Rats were handled daily throughtout gestation. Their litters and those of nonhandled rats were fostered to nonhandled mothers, half of whom were then housed with a virgin female (aunt). Prenatal handling decreased serotonin levels in 21‐day‐old offspring tested at the trough of the 24‐hr serotonin rhythm. Rearing with aunts resulted in lower brain weights among males, but had no effect on the serotonin levels of weanling rats. Both prenatal handling and rearing with aunts affected scores of female offspring in a reaction‐to‐handling test administered at age 56 days, but an open‐field test yielded only sex differences. Rearing with aunts differentially affected trough serotonin levels at that age, males showing a signficant decrease, whereas female values increased.
Indolethylamines (tryptamines) with a primary animofunction react with Regisil under controlled conditions to yield a mono TMS derivative. Mass spectrometry to these derivatives shows that the TMS group is substituted on the indolic nitrogen (N1) and not the primary amino nitrogen. This is confirmed by converting these compounds to their isothiocyanate derivatives. The GC and GC-MS data of some typical compounds are presented.
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