CIRCADIAN CYCLES OF LACTIC DEHYDROGENASE IN URINE AND BLOOD PLASMA: RESPONSE TO HIGH PRESSURE
Abstract
The existence of circadian cycles of plasma lactic dehydrogenase has been confirmed. This cycle is characterized by having its lowest activity at 0800 hours and its highest activity between 1600-2000 hours. A diurnal variation in urinary excretion of lactic dehydrogenase has been described which features an inverse relationship to that of the plasma in that maximum excretion occurs during the 0800-1200 hour period while minimum excretion is present between 1600-2400 hours. High pressure stress applied to the ascending phase of the plasma cycle causes no abnormal response while the same treatment applied to the descending segment elicits a second peak of lactic dehydrogenase activity. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 14, 1968
- Accession Number
- AD0675070
Entities
People
- Karl E. Schaefer
- Michael J. Jacey
Organizations
- Naval Submarine Medical Research Laboratory