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pubmed:abstractText |
By means of antibodies labeled with horseradish peroxidase, autologous albumin and IgG were visualized in electron microscopy on the alveolar epithelial surface of the rat lung, as a continuous cell coat, as free granular deposits, or associated with tubular myelin figures. These 2 proteins were detected by immunochemistry in alveolar washing. After ultracentrifugation of alveolar washing, they were still found in the phospholipid-rich precipitate fraction by immunization of rabbits and by immunoelectron microscopy. Thus, albumin and IgG appeared as normal alveolar components in the rat lung; fibrinogen was not found under normal conditions.
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