{'fraction_non_alphanumeric': 0.02386934673366834, 'fraction_numerical': 0.002512562814070352, 'mean_word_length': 5.083969465648855, '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}}
Forebrain damage in chick embryos exposed to carbon monoxide.

The consequences of CO-induced hypoxia to the forebrain of seven-day-old chick embryos were investigated. Exposure of embryos to CO for three hours caused hemorrhages in developing forebrain areas. Carboxyhemoglobin levels reached about 50% in the embryos. Two weeks later, about one day prior to hatching, morphology of large neurons in the paleostriatum primitivum was evaluated. In Golgi-stained sections examined under the light microscope, the CO-exposed chicks were found to have reduced branching of the dendritic tree. In addition, the nuclear size of the paleostriatum primitivum neurons was reduced in the CO-exposed chicks. These findings in chick embryos are comparable to results in previous experiments with fetal rats.