Abstract
The use of a magnetic separation agent in a modified radioimmunoassay for the non-collagenous cross-linked region (NC1) of basement membrane collagen is described. The rabbit anti-NC1 serum employed in the assay revealed a binding behaviour similar to that reported recently (Mark et al. (1985) Eur. J. Biochem. 146, 555-562; Schuppan et al. (1986) J. Clin. Invest. 78, 241-248) with respect to the integrity of NC1-disulphide bridges, affinity to NC1 subunits and lack of reactivity with other determinants of type IV collagen. Immunoreactive serum NC1, which increased towards the end of gestation, showed a broad peak during the second trimester of pregnancy. In preeclampsia, immunoreactive serum-NC1 was slightly elevated.
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Schedule a callMore From: Journal of clinical chemistry and clinical biochemistry. Zeitschrift fur klinische Chemie und klinische Biochemie
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