Abstract
The human placenta contains a wide variety of enzymes, most of which represent the range of structural and metabolic enzymes found in all mammalian cells. Included among these are the enzymes responsible for placental synthesis of proteins and steroids, e.g. 3ß-hydroxysteroid dehydrogenase. However, none of these distinguish the placenta from other endocrine tissues and as they are not ‘exported’ from the trophoblast there is no obvious change in their circulating levels.
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References
Curzen P, Southcombe C (1970) The relation between heat-stable alkaline phosphatase in maternal serum and urinary oestrogen output. J Obstet Gynaecol Br Commonwealth 77: 97
Curzen P, Varma R (1971) A comparison of serum heat-stable alkaline phosphatase and urinary oestrogen excretion in the mother as placental function tests. J Obstet Gynaecol Br Commonwealth 78: 686
Elder MG (1971) Serum heat-stable alkaline phosphatase levels and their relation to urinary oestrogen output and fetal and placental weights. J Obstet Gynaecol Br Commonwealth 78: 123
Gottlieb AJ, Sussman HH (1968) Human placental alkaline phosphatase:molecular weight and subunit structure. Biochim Biophys Acta 160: 167
Hagerman DD (1969) The enzymology of the placenta. In: Klopper A, Diczfalusy E (eds) Foetus and placenta. Blackwells, Oxford, pp 413–470
Hensleigh A, Krantz KE (1970) Oxytocinase and placental function. J Obstet Gynecol 107: 1233
Merrett JD, Hunter RJ (1973) Serum heat stable alkaline phosphatase levels in normal and abnormal pregnancies. J Obstet Gynaecol Br Commonwealth 80: 957
Shane JM, Suzuki K (1974) Placental alkaline phosphatase: A review and re-evaluation of its applicability in monitoring fetoplacental function. Obstet Gynecol Survey 29: 97
Tovey JE (1969) Serum oxytocinase. Clin Biochem 2: 289
Watson D, Siddiqui SA, Stafford JEH, Gibbard S, Hewitt V (1973) A comparative study of five laboratory tests for fœto-placental dysfunction in late pregnancy. J Clin Pathol 26: 294
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© 1982 Springer-Verlag Berlin Heidelberg
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Chard, T., Klopper, A. (1982). Placental Enzymes. In: Placental Function Tests. Springer, London. https://doi.org/10.1007/978-1-4471-3508-1_4
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DOI: https://doi.org/10.1007/978-1-4471-3508-1_4
Publisher Name: Springer, London
Print ISBN: 978-3-540-11529-8
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