title: CA 19-9, CA 50 and elastase 1 as additional markers of cystic fibrosis.
abstract: Since reliable diagnosis of cystic fibrosis (CF) is still difficult, the occurrence of serum markers CA 19-9, CA 50 and elastase 1 was analysed. Serum levels of CA 19-9, CA 50, CA 125 and elastase 1 were estimated in 54 CF patients as well as in a control group of 66 children of similar age suffering from various other diseases and in 57 parents of CF patients. In 67% of CF patients CA 19-9 was higher than 37 U/ml, whereas 8% of the control group and only 2% of the parents showed an increased concentration. In the case of CA 50, 65% of the CF group, 21% of the control and none of the parents exhibited concentrations higher than 17 U/ml. In CF 22% showed decreased, 8% increased elastase 1 values. In the control group 2% had less than 80 ng/dl and 3% had higher elastase 1 levels than 400 ng/dl. In parents there were only increased levels in 4%. Accordingly CA 19-9 has been proven as a suitable marker and its sensitivity can be improved from 67% to 86% by additional testing of CA 50 and elastase 1. With regard to CA 125 in 11% of CF patients, 5% of control persons and 5% of parents CA 125 levels ranged above 35 U/ml. The determination of saliva CA 19-9 and CA 125 does not yield further information. Taking all previous findings into account elastase 1 is a better marker for acute pancreatitis than for pancreatic cancer and CF.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Abteilung Immunbiologie, Medizinische Universitätsklinik 1, Köln.
authors.forename: G
authors.initials: G
authors.lastname: Uhlenbruck
authors.forename: U
authors.initials: U
authors.lastname: Scheuring
authors.forename: C
authors.initials: C
authors.lastname: Dienst
authors.forename: D
authors.initials: D
authors.lastname: Kaiser
authors.forename: B
authors.initials: B
authors.lastname: Roth
authors.forename: H
authors.initials: H
authors.lastname: Skopnik
mesh_terms: D000293:Adolescent; D000328:Adult; D000951:Antigens, Neoplasm / Q000378:metabolism*; D015295:Antigens, Tumor-Associated, Carbohydrate; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000175:diagnosis* / Q000201:enzymology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007983:Lewis Blood Group Antigens; D008297:Male; D010196:Pancreatic Elastase / Q000097:blood*; D011379:Prognosis; D011863:Radioimmunoassay
chemical_list: D000951:Antigens, Neoplasm; D015295:Antigens, Tumor-Associated, Carbohydrate; D007983:Lewis Blood Group Antigens; D010196:Pancreatic Elastase