caa a22 4500 469055278 CHVBK 20180323132841.0 cr unu---uuuuu 170328e19920501xx s 000 0 eng 10.1007/BF00626287 doi (NATIONALLICENCE)springer-10.1007/BF00626287 Reversal of cold induced haemoconcentration [Elektronische Daten] [P. Vogelaere, G. Savourey, G. Deklunder, J. Lecroart, M. Brasseur, S. Bekaert, J. Bittel] Summary: Classically, cold induced plasma volume reduction is explained by an increased diuresis which is generated by an inhibition of antidiuretic hormone release. However, most of the haemoconcentration appears to be reversible during rewarming. This observation weakens the former statement. The aim of this study was to clarify the mechanisms involved in the reversal of the cold induced haemoconcentration. Six young males, resting in a dorsal reclining position, were exposed successively to a thermoneutral environment (30 min), a cold environment (1° C; cold) or thermoneutrality (control) for 120 min, and during a 60-min recovery period in thermoneutral conditions. During cold stress, a reduction of 15% (i.e. 510 ml) of the plasma volume was observed, and osmolality was unchanged. After the 60-min recovery under thermoneutral conditions, plasma volume variation between the Cold and the Control experiments was reduced and reached 3% (i.e. 100 ml). This volume equalled the increased amount of urine production observed during the cold stress experiment. Haemoconcentration cannot be explained by increased urinary water loss (± 100 ml) alone. Therefore a transient shift of plasma water from vascular to interstitial spaces, due to an increase of blood pressure, could be involved in the reduction of plasma volume. Springer-Verlag, 1992 Cold nationallicence Haematology nationallicence Urinary excretion nationallicence Cardio-respiratory nationallicence Rest nationallicence Vogelaere P. Life Fitness Center, Vrije Universiteit Brussel, Pleinlaan 2, B-1050, Brussels, Belgium aut Savourey G. Laboratoire Thermophysiologie, Centre de Recherche du Service de Santé des Armées, La Tronche, France aut Deklunder G. Laboratoire Physiologie, Université Lille II, Lille, France aut Lecroart J. Laboratoire Physiologie, Université Lille II, Lille, France aut Brasseur M. Laboratoire Chimie, Hématologique, Radio-Immunologique et Informatique Médicale, Centre Hospitalier J. Bracops, Brussels, Belgium aut Bekaert S. Laboratoire Chimie, Hématologique, Radio-Immunologique et Informatique Médicale, Centre Hospitalier J. Bracops, Brussels, Belgium aut Bittel J. Laboratoire Thermophysiologie, Centre de Recherche du Service de Santé des Armées, La Tronche, France aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/3(1992-05-01), 244-249 0301-5548 64:3<244 1992 64 421 https://doi.org/10.1007/BF00626287 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00626287 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vogelaere P. Life Fitness Center, Vrije Universiteit Brussel, Pleinlaan 2, B-1050, Brussels, Belgium aut NATIONALLICENCE 700 1- Savourey G. Laboratoire Thermophysiologie, Centre de Recherche du Service de Santé des Armées, La Tronche, France aut NATIONALLICENCE 700 1- Deklunder G. Laboratoire Physiologie, Université Lille II, Lille, France aut NATIONALLICENCE 700 1- Lecroart J. Laboratoire Physiologie, Université Lille II, Lille, France aut NATIONALLICENCE 700 1- Brasseur M. Laboratoire Chimie, Hématologique, Radio-Immunologique et Informatique Médicale, Centre Hospitalier J. Bracops, Brussels, Belgium aut NATIONALLICENCE 700 1- Bekaert S. Laboratoire Chimie, Hématologique, Radio-Immunologique et Informatique Médicale, Centre Hospitalier J. Bracops, Brussels, Belgium aut NATIONALLICENCE 700 1- Bittel J. Laboratoire Thermophysiologie, Centre de Recherche du Service de Santé des Armées, La Tronche, France aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/3(1992-05-01), 244-249 0301-5548 64:3<244 1992 64 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer