title: [Immunoelectrophoretic and functional evidence in various infants of a transient variant of the fibrinogen (fetal fibrinogen?)].
abstract: In 21 out of 466 full term newborn babies (4.5%) and in 5 out of 50 prematures (10%) a transient fibrinogen electrophoretic abnormality, anodic and cathodic, was found. The observation that the thrombin time in full term newborn babies is prolonged, compared with the adult levels, was confirmed (p less than 0.0005). The difference between the thrombin time in full term newborn babies without fibrinogen electrophoretic abnormalities and those who had them, was statistically significant (p = 0.005) suggesting that the abnormality is associated with the protein function. The normal electrophoretic component could be the "adult" equivalent of the protein and the cathodic variant, the "fetal" type of fibrinogen. This hypothesis could explained why the thrombin time of plasma in newborn normal babies is enriched with the "fetal" fibrinogen in variable proportion, and is delayed compared with that of the adults.
mesh_terms: D004586:Electrophoresis; D005260:Female; D005312:Fetal Blood / Q000032:analysis* / Q000502:physiology; D005340:Fibrinogen / Q000032:analysis* / Q000502:physiology; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D013918:Thrombin Time
chemical_list: D005340:Fibrinogen
vernacular_title: Evidencia inmunoelectroforética y funcional, en algunos recién nacidos, de una variante transitoria del fibrinógeno (fibrinógeno fetal?).