{'fraction_non_alphanumeric': 0.05187319884726225, 'fraction_numerical': 0.037463976945244955, 'mean_word_length': 4.889830508474576, 'pattern_counts': {'":': 0, '<': 1, '<?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}}
[Increased plasma levels of endothelin in patints with essential arterial hypertension].

Endothelin-1 (ET-1) is an endothelium-derived vasoconstrictive peptide. In this study the Authors measured in 25 subjects (15 with essential hypertension and 10 normal) plasma levels of endothelin-1. Patients with hypertension had significantly higher plasma ET-1 concentration than normal subjects (2.18 +/- 1.07 vs. 1.36 +/- 0.40 pg/ml, p < 0.02). Plasma arginine vasopressin, renin activity and aldosterone concentration did not show significant differences between hypertensive and normotensive subjects. These data suggest that ET-1 may be involved in the development or maintenance of hypertension.