Headache under simulated microgravity is related to endocrine, fluid distribution, and tight junction changes.

Feuerecker, Matthias; van Oosterhout, Willebrordus P J; Feuerecker, Benedikt; Matzel, Sandra; Schelling, Gustav; Rehm, Markus; Vein, Alla A; Choukèr, Alexander

doi:10.1097/j.pain.0000000000000481

2016

Back
Back to start of result list
Permanent link for displayed object

Title:: Headache under simulated microgravity is related to endocrine, fluid distribution, and tight junction changes.
Document type:: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't
Author(s):: Feuerecker, Matthias; van Oosterhout, Willebrordus P J; Feuerecker, Benedikt; Matzel, Sandra; Schelling, Gustav; Rehm, Markus; Vein, Alla A; Choukèr, Alexander
Abstract:: Head-down-tilted bed rest (HDTBR) induces headaches similar to headaches during space flights. The objective of this investigation was to study hematological, endocrinological, fluid changes and tight junctions in HDTBR-induced headaches as a proxy for space headache. The randomized crossover HDTBR design by the European Space Agency included 12 healthy, nonheadache male subjects. Before, during, and after confined HDTBR periods, epinephrine (urine), cortisol (saliva), hematological, endothelium markers, and fluid distribution parameters were measured. Headaches were assessed with a validated headache questionnaire. Compared with baseline, HDTBR in all subjects was associated with higher hematocrit, hemoglobin, and epinephrine levels, higher erythrocyte counts, and lower relative plasma volumes (all P < 0.05). In total, 26 headache episodes occurred. In subjects with headaches during HDTBR, epinephrine levels were exaggerated (vs headache-free subjects; HDTBR day 3; 5.1 ± 1.7 vs 3.4 ± 2.4; P = 0.023), cortisol levels were decreased (vs headache-free subjects; HDTBR day 1; 0.37 ± 0.16 vs 0.50 ± 0.20; P < 0.001) and the tight junction marker zonulin was elevated (vs headache-free subjects in HDTBR days 1, 3, 5; P < 0.05). HDTBR induces hemoconcentration and fluid redistribution in all subjects. During headache episodes, endocrinological changes, fluid distribution, and tight junctions were more pronounced, suggesting an additional role in headache pathophysiology.
Journal title abbreviation:: Pain
Year:: 2016
Journal volume:: 157
Journal issue:: 5
Pages contribution:: 1072-8
Language:: eng
Fulltext / DOI:: doi:10.1097/j.pain.0000000000000481
Pubmed ID:: http://view.ncbi.nlm.nih.gov/pubmed/26761382
Print-ISSN:: 0304-3959
TUM Institution:: Klinik und Poliklinik für Nuklearmedizin
BibTeX

Occurrences:

mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Medicine and Health Departments Clinical Medicine Klinik und Poliklinik für Nuklearmedizin (Prof. Weber)2016