[Immunofluorescence study of hyaline membranes and problems involved (author's transl)]

Lung tissues from died premature babies were studied by means of the fluorescein technic, using anti-IgG, anti-IgM, anti-fr. C-3 of the complement and anti-fibrinogen. It is shown that fibrinogen, IgG and C-3 fr. of the complement are present in the hyaline membrane. In view of these findings, and upon the available data on the subject and current research, the role of the complement in the production of hyaline membrane is discussed.