{'fraction_non_alphanumeric': 0.017287234042553192, 'fraction_numerical': 0.009308510638297872, 'mean_word_length': 5.663716814159292, '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}}
Identification and localisation of ATP P2X receptors in rat midbrain

P2X receptors that are gated by extracellular ATP are among the few known examples of ligand‐gated cation‐selective channels. There have been seven cloned proteins identified to date as members of the P2X receptor family in a wide range of tissues from the peripheral and central nervous systems and from many species. To determine the distribution of the P2X subtypes in the rat midbrain, sodium dodecyl sulphate‐polyacrylamide gel electrophoresis (SDS‐PAGE)/Western blotting was combined with immunolocalisation using confocal microscopy. Subtypes P2X1‐6 were detected in the periaqueductal gray area and the ependymal layer bordering the ventricle with a widespread distribution.