Quantitative Determination of Dissolved Oxygen: Ascorbic Acid Oxidase Method

1941 ◽  
Vol 13 (9) ◽  
pp. 593-597 ◽  
Author(s):  
Paul Sharp ◽  
David Hand ◽  
E Guthrie
Keyword(s):  
Ascorbic Acid ◽  
Dissolved Oxygen ◽  
Quantitative Determination ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase

ADENOHYPOPHYSEAL LH CONTENT IN NORMAL, ANDROGEN-STERILIZED AND PROGESTERONE-PRIMED STERILE FEMALE RATS

1962 ◽  
Vol 39 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Roger A. Gorski ◽  
Charles A. Barraclough
Keyword(s):  
Ascorbic Acid ◽  
Electrical Stimulation ◽  
Quantitative Determination ◽  
Median Eminence ◽  
Hypothalamic Stimulation ◽  
Female Rats ◽  
Rat Pituitary ◽  
Gland Content ◽  
Stimulation Of

ABSTRACT We have previously suggested that the failure of the androgen-sterilized, persistent-oestrous rat to ovulate, following electrical stimulation of the median eminence structures of the hypothalamus, is due to an insufficiency in adenohypophyseal LH concentration. Using the ovarian ascorbic acid technique for quantitative determination of pituitary LH content, the present studies have demonstrated that the sterile rat pituitary gland contains one-third the LH content of the normal prooestrous gland. Furthermore, not only does progesterone priming of this persistent-oestrous rat result in a 75 % increase in LH concentration, but on hypothalamic stimulation sufficient LH is released to induce ovulation. The decrease in LH concentration which accompanies ovulation in the progesterone-primed, sterile rat is approximately 45 % of the total gland content as compared with a 51 % decrease in pituitary content in the normal cyclic rat.

Notizen: Effect of Magnetic Field on Ascorbic Acid Oxidase Activity, I

1986 ◽  
Vol 41 (3) ◽  
pp. 355-358 ◽  
Author(s):  
V. S. Ghole ◽  
P. S. Damle ◽  
W. H.-P. Thiemann
Keyword(s):  
Magnetic Field ◽  
Ascorbic Acid ◽  
Homogeneous Magnetic Field ◽  
Acid Oxidase ◽  
High Substrate Concentration ◽  
Ascorbic Acid Oxidase ◽  
Rate Of Reaction ◽  
Substrate Concentrations ◽  
Burk Plot

A homogeneous magnetic field of 1.1 T strength exhibits a significant influence on the activity of the enzyme ascorbic acid oxidase in vitro. A Lineweaver-Burk plot of the reaction shows the typical pattern of a mixed-type inhibition, i.e. a larger rate of reaction at low substrate concentrations and a smaller rate of reaction at high substrate concentration than that of the control without magnetic field applied.

scholarly journals Is Ceruloplasmin an Ascorbic Acid Oxidase?

1962 ◽  
Vol 237 (11) ◽  
pp. 3455-3457
Author(s):  
Anatol G. Morell ◽  
Philip Aisen ◽  
I. Herbert Scheinberg
Keyword(s):  
Ascorbic Acid ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase

The Chemical Nature of "Ascorbic Acid Oxidase"

Science ◽  
1937 ◽  
Vol 86 (2219) ◽  
pp. 35-35
Author(s):  
Elmer H. Stotz ◽  
Carter J. Harrer ◽  
C. G. King
Keyword(s):  
Ascorbic Acid ◽  
Chemical Nature ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase

scholarly journals Ascorbic Acid Oxidase in Barley Roots

1955 ◽  
Vol 30 (2) ◽  
pp. 174-181 ◽  
Author(s):  
S. I. Honda
Keyword(s):  
Ascorbic Acid ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase
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