Vasopressin: another pregnancy protein in human seminal plasma.
Human vasopressin (arginine-vasopressin, AVP, antidiuretic hormone, ADH) was estimated, after protein precipitation and extraction in ethanol, using a new radioimmunoassay from Immuno Technology Service, Wijchen, Netherlands. Concentrations in human seminal plasma were 1.84 +/- 1.23 (0.6-4.1) pg/ml, estimated in good duplicates in all 20 samples, where 1 pg = 0.410 uIU/ml WHO 1st 77/501. This is about the same concentration as in blood serum, for which levels up to 8 pg/ml are found by the same kit. In contrast, only trace amounts of vasopressin were found in amniotic fluid at 16-22 weeks of gestation, with zero values in 8 of 19 samples, while another 9 samples showed zero in one duplicate and up to 0.46 pg/ml in the other duplicate, and one sample showed 0.09 pg/ml in good duplicates.
Brotherton
J
J
Department of Gynaecological Endocrinology, Sterility and Family Planning, Free University, Berlin/Germany.
D000653:Amniotic Fluid / Q000737:chemistry*; D001127:Arginine Vasopressin / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D011257:Pregnancy Proteins / Q000032:analysis*; D011863:Radioimmunoassay; D012016:Reference Values; D012661:Semen / Q000737:chemistry*
D011257:Pregnancy Proteins; D001127:Arginine Vasopressin