{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T22:35:42Z","timestamp":1778538942056,"version":"3.51.4"},"reference-count":43,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,5,10]],"date-time":"2023-05-10T00:00:00Z","timestamp":1683676800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathophysiology"],"abstract":"<jats:p>The primary aim of the study was to assess cerebral circulation in healthy young subjects during an ultra-short (45 min) session of ground-based microgravity modeled by \u201cdry\u201d immersion (DI), with the help of a multifunctional Laser Doppler Flowmetry (LDF) analyzer. In addition, we tested a hypothesis that cerebral temperature would grow during a DI session. The supraorbital area of the forehead and forearm area were tested before, within, and after a DI session. Average perfusion, five oscillation ranges of the LDF spectrum, and brain temperature were assessed. Within a DI session, in the supraorbital area most of LDF parameters remained unchanged except for a 30% increase in respiratory associated (venular) rhythm. The temperature of the supraorbital area increased by up to 38.5 \u00b0C within the DI session. In the forearm area, the average value of perfusion and its nutritive component increased, presumably due to thermoregulation. In conclusion, the results suggest that a 45 min DI session does not exert a substantial effect on cerebral blood perfusion and systemic hemodynamics in young healthy subjects. Moderate signs of venous stasis were observed, and brain temperature increased during a DI session. These findings must be thoroughly validated in future studies because elevated brain temperature during a DI session can contribute to some reactions to DI.<\/jats:p>","DOI":"10.3390\/pathophysiology30020018","type":"journal-article","created":{"date-parts":[[2023,5,11]],"date-time":"2023-05-11T04:29:01Z","timestamp":1683779341000},"page":"209-218","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Cerebral Circulation and Brain Temperature during an Ultra-Short Session of Dry Immersion in Young Subjects"],"prefix":"10.3390","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3677-3764","authenticated-orcid":false,"given":"Liudmila","family":"Gerasimova-Meigal","sequence":"first","affiliation":[{"name":"Department of Physiology and Pathophysiology, Petrozavodsk State University, 33, Lenin Pr., 185910 Petrozavodsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2088-5101","authenticated-orcid":false,"given":"Alexander","family":"Meigal","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pathophysiology, Petrozavodsk State University, 33, Lenin Pr., 185910 Petrozavodsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria","family":"Gerasimova","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pathophysiology, Petrozavodsk State University, 33, Lenin Pr., 185910 Petrozavodsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna","family":"Sklyarova","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pathophysiology, Petrozavodsk State University, 33, Lenin Pr., 185910 Petrozavodsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ekaterina","family":"Sirotinina","sequence":"additional","affiliation":[{"name":"Department of Physiology and Pathophysiology, Petrozavodsk State University, 33, Lenin Pr., 185910 Petrozavodsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"778","DOI":"10.3389\/fphys.2020.00778","article-title":"Impacts of Microgravity Analogs to Spaceflight on Cerebral Autoregulation","volume":"11","author":"Kermorgant","year":"2020","journal-title":"Front. 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