title: [Pregnancy-specific beta-1 glycoprotein (SP1) as a marker for tumors with or without trophoblastic character].
abstract: The pregnancy specific beta-1-glycoprotein (SP1) was measured by radioimmunoassay in 854 persons (control group 103, non-tumoral diseases 212, germinal tumors 30, and non-germinal tumors 509). Amounts higher than 2.5 ng/ml (upper normal limit) were observed in 35 cases with non tumoral diseases (specially chronic liver diseases), 97 of the non-germinal tumors (specially mammary, respiratory and digestive tumors), and 10 of the germinal tumors (pure and mixed choriocarcinomas, and embryonic carcinoma with yolk sac component). SP1 rarely is higher than 5 ng/ml in non-tumoral diseases and non-germinal tumors, while it is higher than 5 ng/ml in germinal tumors. SP1 is a good marker for trophoblastic neoplasms and shows a correlation with HCG-beta.
mesh_terms: D000367:Age Factors; D004194:Disease / Q000097:blood; D005260:Female; D006801:Humans; D009363:Neoplasm Proteins / Q000097:blood*; D009369:Neoplasms / Q000097:blood; D011247:Pregnancy; D011257:Pregnancy Proteins / Q000097:blood*; D011268:Pregnancy-Specific beta 1-Glycoproteins / Q000097:blood*; D014328:Trophoblastic Neoplasms / Q000097:blood* / Q000175:diagnosis; D014594:Uterine Neoplasms / Q000097:blood*
chemical_list: D009363:Neoplasm Proteins; D011257:Pregnancy Proteins; D011268:Pregnancy-Specific beta 1-Glycoproteins
vernacular_title: La beta-1 glicoproteina específica del embarazo (SP1) como marcador de los tumores de naturaleza trofoblástica o no.