Summary. Examination of human seminal plasma showed that there was no p-nitrophenylphosphatase activity maximum at alkaline pH values. A constant ratio of enzyme activities in 8 split ejaculates, identical temperature dependence and co-purification through a three-step purification procedure led us to conclude that the alkaline phosphatase in human semen is identical to acid phosphatase.
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J. P. Kavanagh and W. G. Bardsley
J. S. Shindler, Kathleen Haworth, Audrey Axon, W. G. Bardsley, V. R. Tindall, and I. Laing
Summary. Fourteen healthy women were screened for the following parameters throughout one complete menstrual cycle: levels of urinary oestrogens and pregnanediol; levels of plasma and urinary gonadotrophins; and pH, protein content and levels of peroxidase in the cervical mucus. It was found that concentrations of peroxidase in the cervical mucus were not a reliable index of ovulation.