title: [The study of developmental pharmacology (II). Histological observations of central nervous tissue in rats of dams given pentazocine HCl during perinatal and postnatal periods (author's transl)].
abstract: In previous literature, we reported that the rats whose dams had been administerd pentazocine HCl 200 mg/kg/day during the perinatal and postnatal periods, showed no differences between control rats in the physiological function and psychotic activity tests. Brain tissues of the rats were observed histologically herein to confirm the result of previous tests. Abnormal findings such as deficits, undevelopment and metamorphosis, in the shape, size and configuration of nerve cells, myelin sheaths and vessels in consecutive transverse sections stained by Nissl and Klüver-Barrera method were not evident on examination under light microscope, and in cell bodies, dendrites, axons, myelin sheaths, synaptic complexes of nerve cell, neuroglia and vessels in the cerebral cortex, under electron microscope. The lack of abnormal findings in the histological observation of brain tissues supports the result of previously conducted physiological function and psychotic activity tests in which no significant differences were found between treated and control rats. Pentazocine HCl had no effect on the brain tissues of rat offspring from dams administered the drug during perinatal and postnatal periods.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001921:Brain / Q000166:cytology* / Q000187:drug effects / Q000254:growth & development; D005260:Female; D008297:Male; D008431:Maternal-Fetal Exchange; D010423:Pentazocine / Q000633:toxicity*; D011247:Pregnancy; D051381:Rats
chemical_list: D010423:Pentazocine