VARIATIONS IN MATERNAL PLASMA LEVELS OF HUMAN PLACENTAL LACTOGEN (HPL) IN NORMAL PREGNANCY AND LABOUR
作者： Bo S. Lindberg , Bo A. Nilsson
DOI: 10.1111/J.1471-0528.1973.TB16037.X
关键词:
摘要: Summary Plasma levels of human placental lactogen (HPL) in normal pregnancy from the 22nd week until delivery were measured with a rapid radioimmunoassay. The HPL concentration plasma rose steadily up to 37th and thereafter gradually decreased delivery. Individual women followed during latter part showed characteristic pattern very small deviations their original relative level within range. Significant fluctuations noted 24-hour period sampling shorter periods. No systematic circadian variation was observed. variations no clear relation sleep, meals or light exercise. During spontaneous induced labour significant concentrations occurred but these same magnitude as those pregnancy; correlation between uterine contraction relaxation found. Strenuous physical exercise last month sufficient affect fetal heart rate did not influence levels.
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