Pulmonary Alveolar Cell Inclusions: Their Development in the Rat
- 11 September 1964
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 145 (3637), 1192-1193
- https://doi.org/10.1126/science.145.3637.1192
Abstract
Cytoplasmic inclusions in the special pulmonary alveolar cells of adult, newborn, and fetal rats were investigated by electron microscopy and histochemistry, and lung extracts were analyzed for surface-tension activity. The inclusions were positive in the periodic acid-Schiff test after digestion with diastase and were not stained with toluidine blue; they formed myelin figures and possessed alkaline phosphatase activity. Both the typical surface tension activity and the inclusions developed 2 days before birth. These properties differentiated the inclusions from mitochondria.Keywords
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