2021-07-052021-07-051991Özcan, O. vd. (1991). ''Release of vasopressin, cortisol and β-endorphin in tetraplegic subjects in response to head-up tilt''. Paraplegia, 29(2), 120-124.0031-1758https://www.nature.com/articles/sc199116https://doi.org/10.1038/sc.1991.16http://hdl.handle.net/11452/21057Plasma 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.eninfo:eu-repo/semantics/closedAccessNeurosciences & neurologyOrthopedicsArticleA1991EV044000072-s2.0-849700610611201242922023776Clinical neurologyOrthopedics