{'fraction_non_alphanumeric': 0.015580736543909348, 'fraction_numerical': 0.0, 'mean_word_length': 5.607476635514018, '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}}
[Curling and kinking of hair caused by etretinate].

In two female psoriasis patients, curling and kinking of the scalp hair developed subsequent to a long-term etretinate therapy. Scanning electron microscopic examination of kinking hair revealed twists with sharp-edged defects and splitting of the cuticle cells in several hairshafts. The quantitative determination of the mechanical parameters of these hairs using a computerized system revealed statistically significant changes from the pattern in the scalp hair of untreated psoriasis patients. This finding suggests etretinate-induced alteration of the expression of the psoriatic phenotype in the keratin composition of hair in psoriasis patients.