scholarly journals On the hydrogen-ion concentration and some related properties of normal human blood1

1922 ◽  
Vol 56 (3-4) ◽  
pp. 157-178 ◽  
Author(s):  
J. Barcroft ◽  
A. V. Bock ◽  
A. V. Hill ◽  
T. R. Parsons ◽  
W. Parsons ◽  
...  
Keyword(s):  
Hydrogen Ion ◽  
Ion Concentration ◽  
Hydrogen Ion Concentration ◽  
Normal Human

scholarly journals THYROXIN AS A DEPRESSANT OF THE DIVISION RATE OF PARAMECIUM

1925 ◽  
Vol 7 (4) ◽  
pp. 449-460 ◽  
Author(s):  
Harry Beal Torrey ◽  
Matthew C. Riddle ◽  
J. L. Brodie
Keyword(s):  
Alkaline Solution ◽  
Human Blood ◽  
Food Supply ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Metabolic Processes ◽  
Division Rate ◽  
Hydrogen Ion Concentration ◽  
Normal Human ◽  
Normal Human Blood

In concentrations of 1:104, 1:105, 1:106, in alkaline solution with a hydrogen ion concentration approximating that characteristic of normal human blood, thyroxin acts like total thyroid in accelerating certain metabolic processes in Paramecium, notably those connected with the phenomena of excretion. Unlike total thyroid, thyroxin depresses the division rate of Paramecium, the degree of depression varying directly with its concentration. This depression of the division rate is due to the action of the thyroxin directly on Paramecium, not to a modification of the food supply.

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