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5.
Am J Pathol ; 67(2): 371-86, 1972 May.
Article in English | MEDLINE | ID: mdl-5021107

ABSTRACT

In a 4-year period, 196 lungs from patients with and without chronic obstructive pulmonary disease were examined postmortem for the presence of atrophy in segmental and subsegmental bronchi. As a result of simultaneous postmortem spirometry, cinefluorobronchography and partitioning of airways resistance, plus later assessment of anatomic emphysema, bronchial atrophy emerges as only one of at least three factors usually cooperating in production of abnormal expiratory airway collapse. In selected cases, bronchial atrophy appears to be an important contributor to expiratory airways obstruction.


Subject(s)
Bronchi/pathology , Bronchial Diseases/pathology , Lung Diseases, Obstructive/pathology , Adolescent , Adult , Aged , Airway Obstruction/etiology , Atrophy , Autopsy , Bronchial Diseases/complications , Bronchography , Chronic Disease , Cineradiography , Humans , Middle Aged , Pulmonary Emphysema/pathology , Spirometry
20.
J Cell Biol ; 29(3): 461-73, 1966 Jun.
Article in English | MEDLINE | ID: mdl-4164214

ABSTRACT

Nucleoli of animal cells cultured in vitro are modified by a component of "nonimmune" animal serum. Modified nucleoli bind fluorescein-conjugated nonimmune serum proteins, as shown by calcium ion-dependent fluorescence. Analysis of serum indicates that the nucleolar-binding component is a globulin, with an electrophoretic mobility in the same region as the slow alpha-1 component in pH 8.6 Veronal buffer. The component has a low sedimentation constant (2.4S), and appears to contain glycoprotein with relatively high sialic acid content (8.5%); the latter moiety may be essential to reaction with nucleoli. The nucleolar component reacting with this alpha globulin fraction appears to be a histonelike basic protein. Primary cultures of animal cells have been supported for 1 wk through attachment, spreading, and outgrowth from colonies to confluent monolayers in medium containing a nucleolar-reactive serum fraction as the only protein supplement.


Subject(s)
Alpha-Globulins/pharmacology , Blood Proteins/pharmacology , Cell Nucleolus/drug effects , Fluorescence , Glycoproteins/pharmacology , Animals , Blood Chemical Analysis , Blood Protein Electrophoresis , Culture Techniques , Haplorhini , Histocytochemistry , Humans , Kidney/growth & development , Microscopy, Electron , Ultracentrifugation
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