The Coagulability of Ammonium Sulfate Precipitated Canine Fibrinogen
| Autor: | Shu Chien, Robert J. Dellenback |
|---|---|
| Rok vydání: | 1971 |
| Předmět: |
Ammonium sulfate
Nitrogen Ultraviolet Rays Inorganic chemistry Uv absorption chemistry.chemical_element Fibrinogen General Biochemistry Genetics and Molecular Biology Fibrin chemistry.chemical_compound Dogs Dry weight Sodium citrate medicine Animals Chemical Precipitation Blood Coagulation Ammonium sulfate precipitation Chromatography biology Quaternary Ammonium Compounds chemistry Spectrophotometry biology.protein Blood Coagulation Tests Dialysis medicine.drug |
| Zdroj: | Experimental Biology and Medicine. 137:759-762 |
| ISSN: | 1535-3699 1535-3702 |
| DOI: | 10.3181/00379727-137-35660 |
| Popis: | SummaryFibrinogen, isolated from the plasma of mongrel dogs by fractional ammonium sulfate precipitation, extensively purified and finally dialyzed into 0.01 M sodium citrate was used in a study of coagulability. Coagulability determined by UV absorption at 280 mμ has a value of 93.9 ± 1.2%. Clottability, determined by a comparison of the dry weight of fibrin collected from a fibrinogen solution in which the fibrinogen amount was determined by nitrogen analysis and the conversion factor of 5.92 (16.9% nitrogen in fibrinogen) has a value of 94.7 ± 3.1%. On the basis of total nitrogen from a fibrinogen aliquot and the nitrogen present in the dried fibrin from a similar aliquot the nitrogen coagulability was found to be 96.5 ± 4.3%. The average of the three methods is 95%, showing that approximately 5% of the fibrinogen molecule is lost in the conversion to fibrin. The close agreement between the results of all three methods and the average coagulability of 95% show that the ammonium sulfate precipitation an... |
| Databáze: | OpenAIRE |
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