Abstract
Summary
The plasma corticotropin and cortisol concentrations of 9 coronary-prone (Type A behavior pattern) and 10 coronary-resistant (Type B behavior pattern) subjects were studied at 6 time intervals during their waking hours. The average plasma corticotropin content of the 9 Type A subjects was significantly greater during the total period measured than that of the 10 Type B subjects. The average daily peak value of plasma corticotropin of the Type A subjects also was found to be significantly increased. No significant differences were found in either the average or peak plasma cortisol values between these 2 groups of subjects.
The authors express their thanks to Drs. Berson and Yalow for their ACTH analyses of the plasma samples of these subjects.
Get full access to this article
View all access options for this article.