1. Adenosine Triphosphatase Activity and Weight of Corpora Lutea During Reproductive Cycle of the Rat
- Author
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Roland K. Meyer, Clyde Biddulph, and W. H. McShan
- Subjects
endocrine system ,medicine.medical_specialty ,Lutein ,media_common.quotation_subject ,Biology ,Reproductive cycle ,General Biochemistry, Genetics and Molecular Biology ,chemistry.chemical_compound ,Corpus Luteum ,Internal medicine ,Lactation ,medicine ,Animals ,Humans ,reproductive and urinary physiology ,media_common ,Adenosine Triphosphatases ,Estrous cycle ,Pregnancy ,urogenital system ,Reproduction ,Body Weight ,medicine.disease ,Enzyme assay ,Rats ,Endocrinology ,medicine.anatomical_structure ,chemistry ,biology.protein ,Female ,Acids ,Corpus luteum ,hormones, hormone substitutes, and hormone antagonists - Abstract
SummaryThe ATP-ase activity and weight of lutein and ovarian tissue were determined during estrus, diestrus, pseudopregnancy, pregnancy and lactation. The results indicate that in general the enzyme activity per unit weight is lower in functional corpora lutea than in apparently non-functional corpora. The weight and enzyme activity per corpus luteum increased and decreased at approximately the same rate during pregnancy and lactation. The enzyme activity of ovarian tissue remaining after the removal of the corpora lutea was greatest on the 4th day of pseudopregnancy, 7th day of pregnancy and 11th day of lactation.
- Published
- 1946
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