孕妇血清和尿液中妊娠相关蛋白1（SP1）浓度的比较。
Comparison of the concentration of schwangerschaftsprotein 1 (SP1) in the serum and urine of pregnant women.
作者信息
Bersinger N, Luke G, Klopper A
出版信息
Gynecol Obstet Invest. 1986;21(3):113-6. doi: 10.1159/000298939.
Schwangerschaftsprotein 1 (SP1) values in serum and urine were compared. The first appearance of the protein in urine happens 9-17 days after the first SP1-positive serum, i.e., about 9 days after the first missed period. Urinary SP1 values up to 6 weeks after LMP do not correlate with gestational age as do serum values, but towards the end of the first trimester this correlation becomes almost as good as the one obtained with serum. The urinary SP1 concentration of SP1 fluctuates around 2.3% of the serum concentration throughout pregnancy.
对血清和尿液中的妊娠特异性β1糖蛋白（SP1）值进行了比较。尿液中该蛋白首次出现的时间是在血清首次出现SP1阳性后的9 - 17天，即大约在月经推迟后的9天。末次月经（LMP）后6周内的尿SP1值不像血清值那样与孕周相关，但在孕早期接近尾声时，这种相关性几乎与血清值所获得的相关性一样好。整个孕期，尿SP1的浓度约为血清浓度的2.3%，并围绕该值波动。
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