The elimination of aged glycoproteins by the isolated perfused rat liver |
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Authors: | Vömel T |
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Affiliation: | Hüttenhospital Dortmund H?rde, Department Internal Medicine - Geriatrie, Am Marksbach 28, D-44269 Dortmund, Germany. |
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Abstract: | The isolated livers of Sprague-Dawley rats aged ten months were perfused with nine different glycoproteins (coeruloplasmine, haptoglobin, transferrin, alpha2-mocroglobulin, apolipoprotein A, plasminogen, acid alpha1-glycoprotein, alpha1-antitrypsin, beta2-glycoprotein), which were suspended in a basic medium free of hemoglobin and other proteins. Besides a control group two other groups were formed to give a model for aging: one group of glycoproteins was desialysed, another was desilysed and incubated with immunoglobulins before the perfusion. In spite of the application of two procedures which are supposed to produce a model of old glycoproteins, neither treatment resulted in the recognition, binding and elimination of the glycoproteins from the perfusion medium. |
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