[Nephritogenic glycopeptide (nephritogenoside): its existence in the urine of toxemia patients]

Previously we reported that we succeeded in isolating from human full term placenta, glycopeptide which was immunologically the same as nephritogenic glycopeptide (Nephritogenoside) prepared from human renal GBM (glomerular basement membrane). This time to clarify the correlation between the pathology of toxemia and Nephritogenoside, we examined the existence of Nephritogenoside in the urine of toxemia patients. To purify Nephritogenoside from the urine powder of toxemia patients, we use the same procedures (enzyme digestion, Con A affinity column chromatography e.t.c.) as used in purifying Nephritogenoside from human full term placental TrBM (trophoblast basement membrane). In the urine of toxemia patients we clarified the existence of glycopeptide, which had specific affinity with Con A and was immunologically the same as Nephritogenoside. The existence of Nephritogenoside in the urine of toxemia patients further strengthened the possibility of a relationship between Nephritogenoside and the pathology of toxemia.