title: Release of vasopressin, cortisol and beta-endorphin in tetraplegic subjects in response to head-up tilt.
abstract: Plasma levels of beta-endorphin, vasopressin and cortisol during head-up tilt were measured in tetraplegic patients and in normal healthy subjects. In tetraplegic patients rapid tilt from the horizontal to 30 degrees or 60 degrees head-up induced orthostatic hypotension and increased plasma levels of cortisol, beta-endorphin and vasopressin. In control subjects head-up tilt failed to alter plasma levels of these hormones. These data show that the head-up position in tetraplegics causes various endocrine reactions.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Uludag University Medical Faculty, Bursa, Turkey.
authors.forename: O
authors.initials: O
authors.lastname: Ozcan
authors.forename: I H
authors.initials: IH
authors.lastname: Ulus
authors.forename: M
authors.initials: M
authors.lastname: Yurtkuran
authors.forename: M
authors.initials: M
authors.lastname: Karakaya
mesh_terms: D001794:Blood Pressure; D005260:Female; D006339:Heart Rate; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D008297:Male; D008875:Middle Aged; D011187:Posture; D011782:Quadriplegia / Q000097:blood* / Q000503:physiopathology; D014667:Vasopressins / Q000097:blood*; D001615:beta-Endorphin / Q000097:blood*
chemical_list: D014667:Vasopressins; D001615:beta-Endorphin; D006854:Hydrocortisone