[Influence of propranolol on daily variations in blood cortisol in essential obestiy].
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Biomedical subjects
Publications and source records attributed to M Sellini.
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This case reports deals with a male patient, white, aged 51, bricklayer, tobacco smoker. At 43 years old a tubercular epididimite was surgically treated with orchiectomy. Recently, the reports marked weakness, weight loss, headache, vertigo, hypotension. On admittance to the hospital, hyperpigmentation was also present. Previous therapy (cortisone acetate 40 mg/die), was suspended, clinical investigations showed impaired adrenal and thyroidal functions; antimicrosomal antibodies were also present. Therefore therapy with cortisone acetate (25 mg x 2/die, 9-alpha-fluorohydrocortisone 0.1 mg/die and L-thyroxine 100 mcg/die) was instituted with marked improvement of the patient's conditions. This case reports highlights the importance of proceeding with complete investigations on the system, even when dealing with a tubercular Addison's disease.
Plasma concentrations of adrenocorticotrophin (ACTH) and cortisol were measured during insulin-induced hypoglycemia and lysin-8-vasopressin (LVP) test in 60 healthy subjects, non-smokers and habitually smokers of 10 or more cigarettes/24 hours. A marked and statistically significant rise of both hormones was found in non-smoker subjects, whereas smokers showed poor and not significant modifications. These results suggest that continuous chronic inhalation of nicotine may act as a powerful stimulus on the hypothalamo-hypophyseal structures that control the hypothalamic CRF and/or ACTH production and release. Central nervous mechanisms of hormonal regulation may become less sensitive and efficient when an acute rise of ACTH is required, as during stimulating tests. Our investigation confirms that cigarette smoking is heavily responsible of endocrine disorders, in particular of hypophyseal-adrenal axis.