{'fraction_non_alphanumeric': 0.03312788906009245, 'fraction_numerical': 0.013097072419106317, 'mean_word_length': 4.672489082969432, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
DETERMINATION OF 5‐HYDROXYTRYPTAMINE, 5‐HYDROXYINDOLEACETIC ACID AND HOMOVANILLIC ACID IN BRAIN TISSUE FROM AN AUTOPSY MATERIAL

5-hydroxytryptamine (5-HT), 5-hydroxyindoleacetic acid (5-HIAA), and homovanillic acid (HVA) were determined in different parts of the human brain in an autopsy material of 20 cases. The highest values of 5-HT and 5-HIAA were found in the brain stem, basal ganglias, and medulla oblongata. In the cortex, the phylogenetic older parts belonging to the limbic structures had higher concentrations of 5-HT and 5-HIAA than the neocortex. HVA was determined in the caudate nucleus and in the putamen. There was a positive correlation between the 5-HIAA levrls in the different regions of the brain. The same correlation, but weaker, was found for the 5-HT levels. There was no positive correlation between age and the chemical variables. The female group had, at least in some areas of the brain, significantly higher levels of 5-HIAA than the male group. The same difference was found for HVA. If patients had suffered final hypoxia there seemed to be reduced concentrations of 5-HIAA. The time that elapsed between mors and autopsy and storing time of samples seemed to be of little importance if the dead bodies were kept in +4"C and the samples were quickly deep frozen.