title: Histiocytosis X. VI. Angiotensin-converting enzyme activity.
abstract: The activity of the endothelial and macrophage derived angiotensin-converting enzyme in blood was within normal range in 12 patients with histiocytosis X, independent of extent and activity of the disease. In contrast to sarcoidosis and Gaucher's disease, histiocytosis X is not associated with elevated levels of angiotensin-converting enzyme.
mesh_terms: D000328:Adult; D002648:Child; D002675:Child, Preschool; D004727:Endothelium / Q000201:enzymology; D005260:Female; D006646:Histiocytosis, Langerhans-Cell / Q000201:enzymology*; D006801:Humans; D008264:Macrophages / Q000201:enzymology; D008297:Male; D007703:Peptidyl-Dipeptidase A / Q000097:blood*
chemical_list: D007703:Peptidyl-Dipeptidase A