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  • Title: [Changes in the urinary protein pattern in SDS polyacrylamide gel electrophoresis in normal and hypertensive pregnancies].
    Author: Rath W, Nesselhut T, Grospietsch G, Stadler H, Weber MH, Otto V, Kuhn W.
    Journal: Geburtshilfe Frauenheilkd; 1988 Oct; 48(10):724-30. PubMed ID: 3234705.
    Abstract:
    The urinary protein pattern was determined in 46 healthy male and female subjects, 64 patients with an uncomplicated course of pregnancy and 88 hypertensive pregnant women by use of a special urine preparation and a modified SDS-polyacrylamide gel electrophoresis (SDS-PAGE). There were no differences in the protein electrophoresis pattern between the control subjects, independent of sex and age, and the pregnant women. The number of protein bands did not change in the course of pregnancy and in the post partum period. In both groups, an intensively stained protein band with an apparent molecular weight of 105 kD was detected. In 71 of the 88 hypertensive pregnant women we found a marked reduction in intensity or complete disappearance of the 105 kD protein band. Follow-up analysis in 30 of these pregnant women showed, that in 24 cases disappearance of the 105 kD band occurred simultaneously with and in 6 women before clinical manifestation of the disease. There were no differences in the protein electrophoresis pattern between patients with preexisting renal or hypertensive disease and hypertensive women without a complicated history. In 49 of the 52 hypertensive pregnant women complete reappearance of the 105 kD band was observed 2 to 14 days after delivery. By using silver staining and Western blot, the 105 kD band was identified as Tamm-Horsfall protein. Our findings may reflect a transitory tubular dysfunction in cases of preeclampsia and support the hypothesis of an immunological pathogenesis of the disease.
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