Changes in hematological profiles during winter field operations
Conference
·
· FASEB Journal (Federation of American Societies for Experimental Biology); (United States)
OSTI ID:5374859
- Naval Medical Research Inst., Bethesda, MD (United States)
The authors have previously shown that there are changes in hematological profiles during experimental cold acclimation. They now report on hematological changes in 9 military volunteers during a 12 week winter field operation and show results similar to those observed during experimental cold acclimation. Blood was collected before and after completion of winter field operations and analyzed in a paired fashion. Hematocrit (HCT) and erythrocyte counts (RBC) were decreased; mean corpuscular hemoglobin concentration (MCHC) and plasma volume (PV), which was calculated from hemoglobin (Hb) concentration and HCT, were increased. In addition, the reticulocyte count was increased from 1.37 {plus minus} 0.10% to 2.62 {plus minus} 0.24% after completion of field operations. There was a statistically significant inverse correlation between HCT and reticulocyte count, indicating the need for an enhanced rate of red cell production. Hemoglobin concentration, leukocyte count, and mean corpuscular volume were unchanged. The RBC population, to remain at steady state during periods of chronic cold exposure, shows alterations in the number of circulating cells, Hb concentration per cell and possibly cell turnover.
- OSTI ID:
- 5374859
- Report Number(s):
- CONF-9104107--
- Conference Information:
- Journal Name: FASEB Journal (Federation of American Societies for Experimental Biology); (United States) Journal Volume: 5:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560200* -- Thermal Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BLOOD COUNT
BODY FLUIDS
BODY TEMPERATURE
CARBOXYLIC ACIDS
CHRONIC EXPOSURE
ERYTHROCYTES
GLOBINS
HEMOGLOBIN
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYPOTHERMIA
MAMMALS
MAN
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PIGMENTS
PORPHYRINS
PRIMATES
PROTEINS
TEMPERATURE EFFECTS
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BLOOD COUNT
BODY FLUIDS
BODY TEMPERATURE
CARBOXYLIC ACIDS
CHRONIC EXPOSURE
ERYTHROCYTES
GLOBINS
HEMOGLOBIN
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYPOTHERMIA
MAMMALS
MAN
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PIGMENTS
PORPHYRINS
PRIMATES
PROTEINS
TEMPERATURE EFFECTS
VERTEBRATES