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Sleep-endocrine effects of growth hormone-releasing hormone (GHRH) in patients with schizophrenia.

Abstract：

:Changes in sleep-EEG after endocrine stimulation tests in patients with schizophrenia include reduced sleep efficiency, prolonged sleep latency and increased awaking after sleep onset Findings on sleep associated growth hormone (GH) secretion were ambiguous. The aim of this study was to elucidate the sleep-endocrine activity especially in the GH system of patients with schizophrenia after repeated administration of GHRH. The effect of repetitive injections of 4 × 50 μg GHRH between 22.00 and 01.00 h on sleep endocrine parameters was investigated in 9 patients diagnosed for schizophrenia. Patients did not receive any medication for one week. Concentrations of ACTH, cortisol, prolactin and GH were determined. Patients spent three consecutive nights in the sleep laboratory. Blood was taken every 20min. Results were compared with matched healthy controls. A non-significant prolonged sleep onset latency and increased time awake was found in patients compared to controls. Sleep stage 2 was significantly reduced in patients. No significant difference in ACTH and cortisol was detected, whereas the GH secretion in patients following GHRH stimulation was significantly elevated compared to controls. Our results in drug free patients confirm already known changes in sleep-EEG in these patients. The GH response to GHRH-stimulation indicates a different regulatory sensitivity of the system between daytime and night-time.

journal_name

J Psychiatr Res

journal_title

Journal of psychiatric research

authors

Künzel H,Held K,Schmidt D,Ziegenbein M,Murck H,Steiger A

doi

10.1016/j.jpsychires.2018.02.015

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

1-4

eissn

0022-3956

issn

1879-1379

pii

S0022-3956(17)31062-2

journal_volume

101

pub_type

杂志文章

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