title: [Levels of beta-endorphin in serum of patients with chronic renal failure on conservative treatment during insulin-induced hypoglycemia stimulation testing].
abstract: beta-endorphin (BE) and other opioid peptides participate significantly in the development of the uremic syndrome. In patients with chronic renal failure (CRF) an elevated serum BE level and lack of a twenty-four-hour BE-secretory pattern were found. In 14 patients with CRF on conservative treatment with serum creatinine above 500 mumol/l and in 14 healthy subjects serum BE was evaluated after intravenous insulin injection. An adequate hypoglycemia was obtained in every subject. Basel serum BE concentration was significantly higher in patients with CRF than in healthy subjects and correlation positively with creatinine. After 60 min. from insulin injection in both groups the peak BE level was observed here after 120 min. it returned to the initial values. The curve of BE concentration in patients with CRF ran significantly higher than in healthy subjects. A total secretory answer of the pituitary measured by the area over basel value of BE was similar in both groups. It seems that BE secretion by the corticotropic cells of the pituitary is unchanged in patients with CRF. Impaired BE elimination by the kidneys is probably responsible for hyper-beta-endorphin levels in those patients.
authors.affiliation: Oddział Nefrologii i Oddział Sztucznej Nerki, Specjalistyczny Szpital Miejski Stalownik w Bielsku-Białej.
authors.forename: P
authors.initials: P
authors.lastname: Trelewicz
authors.forename: R
authors.initials: R
authors.lastname: Drabczyk
authors.forename: W
authors.initials: W
authors.lastname: Grzeszczak
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007003:Hypoglycemia / Q000097:blood* / Q000139:chemically induced; D007328:Insulin; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D001615:beta-Endorphin / Q000097:blood*
chemical_list: D007328:Insulin; D001615:beta-Endorphin
vernacular_title: Stezenie beta-endorfiny w surowicy krwi u chorych z przewlekła niewydolnościa nerek leczonych zachowawczo w teście stymulacji hipoglikemia poinsulinowa.