scholarly journals OXYGEN TENSION OF TISSUES BY THE POLAROGRAPHIC METHOD. V. THE RATE OF MOVEMENT OF OXYGEN FROM THE PERIPHERAL ARTERY TO THE SKIN 1

1952 ◽  
Vol 31 (12) ◽  
pp. 1042-1048 ◽  
Author(s):  
Raymond Penneys ◽  
Hugh Montgomery
Keyword(s):  
Oxygen Tension ◽  
Polarographic Method ◽  
Peripheral Artery ◽  
Rate Of Movement

Effect of Cholinergic Drugs on the Perilymphatic Oxygen Tension

1979 ◽  
Vol 88 (5) ◽  
pp. 626-629
Author(s):  
N. Yagi ◽  
U. Fisch
Keyword(s):  
Oxygen Tension ◽  
Intravenous Injection ◽  
Cholinergic Receptors ◽  
Polarographic Method ◽  
Cholinergic Drugs ◽  
Perilymphatic Space

The effect of the intravenous injection of cholinergic drugs on perilymphatic oxygen tension (Po2) was measured using the polarographic method in 20 cats. Acetylcholine, pilocarpine and neostigmine produced minimal but statistically significant changes in perilymphatic Po2. Atropine and scopolamine did not influence the Po2 of the perilymphatic space. The reported results show that under normal conditions the cholinergic receptors of the vestibular vessels have little effect on the permeability of arterial Po2.

scholarly journals Oxygen Tension of Tissues by the Polarographic Method

Circulation ◽  
1950 ◽  
Vol 2 (6) ◽  
pp. 845-849 ◽  
Author(s):  
HUGH MONTGOMERY ◽  
HARRY F. ZINSSER ◽  
ORVILLE HORWITZ
Keyword(s):  
Oxygen Tension ◽  
Polarographic Method

An Improved Polarographic Method for Measuring Oxygen Tension in Whole Blood

1957 ◽  
Vol 11 (3) ◽  
pp. 365-370 ◽  
Author(s):  
Brian J. Sproule ◽  
William F. Miller ◽  
Ivan E. Cushing ◽  
Carleton B. Chapman
Keyword(s):  
Oxygen Tension ◽  
Whole Blood ◽  
Polarographic Method

Perilymphatic Oxygen Tension and Vasoactive Drugs

1978 ◽  
Vol 87 (3) ◽  
pp. 364-369 ◽  
Author(s):  
N. Yagi ◽  
U. Fisch ◽  
K. Murata
Keyword(s):  
Blood Pressure ◽  
Oxygen Tension ◽  
Intravenous Injection ◽  
Systemic Blood Pressure ◽  
Polarographic Method ◽  
Vasoactive Drugs ◽  
Systemic Blood ◽  
Rapid Changes ◽  
Perilymphatic Space

— The oxygenation of the perilymph in response to the intravenous injection of vasoactive drugs has been measured in 67 cats using the polarographic method. Of all drugs used, only angiotensin induced a significant raise of perilymphatic PO2. Histamine, 50% glycerol and 7% Na2CO3 reduced the perilymphatic PO2. Papaverine, furosemid, pyridylcarbinol, naftidrofuryl and low molecular dextran have no significant effect upon the perilymphatic oxygen tension. Rapid changes of systemic blood pressure were found to correlate with subsequent modifications of the oxygen tension in the perilymphatic space.

scholarly journals The Control of Respiratory Movements in Crustacea by Oxygen and Carbon Dioxide

1934 ◽  
Vol 11 (1) ◽  
pp. 1-10
Author(s):  
H. MUNRO FOX ◽  
M. L. JOHNSON
Keyword(s):  
Carbon Dioxide ◽  
Oxygen Consumption ◽  
Fresh Water ◽  
Oxygen Tension ◽  
Sea Water ◽  
Respiratory Rhythm ◽  
Marine Species ◽  
Carbon Dioxide Tension ◽  
Respiratory Movements ◽  
Rate Of Movement

1. The respiratory movements of the barnacle Balanus and of the phyllopod Cheirocephalus are not accelerated either by decreased oxygen or by increased carbon dioxide tension in the water. 2. The rate of movement of the scaphognathite of the crayfish Astacus is accelerated by a fall in oxygen but not by a rise in carbon dioxide tension of the environment. 3. The rate of movement of the pleopods of the fresh-water isopod Asellus is accelerated by a fall in oxygen but not by a rise of carbon dioxide tension. 4. In the sea-shore isopod Ligia, submerged in sea water, the rate of pleopod movement is not accelerated by a decrease in oxygen tension below that in equilibrium with air, but a rise in oxygen tension above the latter value slows respiratory movements. Carbon dioxide has no accelerating effect. 5. Both a decrease in oxygen and an increase in carbon dioxide tension accelerate the respiratory pleopod movements of the amphipods Gammarus pulex and G. locusta. 6. Whereas in the fresh-water G. pulex the quickened respiratory rhythm is permanent at each decreased oxygen and increased carbon dioxide tension, in the marine G. locusta these changes in rate of beat are transitory. This is correlated with the greater oxygen consumption of the marine species.

scholarly journals Oxygen Tension of Tissues by the Polarographic Method

Circulation ◽  
1951 ◽  
Vol 4 (1) ◽  
pp. 111-115 ◽  
Author(s):  
ORVILLE HORWITZ ◽  
GEORGE PEIRCE ◽  
HUGH MONTGOMERY
Keyword(s):  
Oxygen Tension ◽  
Polarographic Method
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