Limit of detection:
80% B/B0: 10 pg/ml
·
Sensitivity:
50% B/B0: 70 pg/ml
·
Progesterone, along with pregnenolone, is the biosynthetic precursor of all other steroid hormones. Progesterone is synthesized from cholesterol by the sequential action of desmolase in the mitochondria, which produces pregnenolone, followed by Δ4,5-isomerase in the outer mitochondrial membrane and smooth endoplasmic reticulum of steroid-secreting cells.1 The main function of progesterone is to prepare the uterine lining for implantation of a fertilized ovum and to maintain pregnancy. Measurement of serum or plasma progesterone levels are used as an index to monitor ovulation and investigate luteal function. Plasma concentrations of progesterone are approximately 0.2-0.8 ng/ml and 4-20 ng/ml during the follicular phase and luteal phase of the menstrual cycle, respectively.1 Salivary concentrations of progesterone are approximately 100-fold lower than those found in plasma.2
1
Erickson, G.F. The ovary: Basic principles and concepts. A. Physiology. 3rd ed. 973-1015 (1995).
2
Tallon, D.F., Gosling, J.P., Buckley, P.M., et al. Direct solid-phase enzyme immunoassay of progesterone in saliva. Clin Chem 30 1507-1511 (1984).
Tallon, D.F., Gosling, J.P., Buckley, P.M., et al. Direct solid-phase enzyme immunoassay of progesterone in saliva. Clin Chem 30 1507-1511 (1984).
Maxey, K.M., Maddipati, K.R., and Birkmeier, J. Interference in enzyme immunoassays. J Clin Immunoassay 15 116-120 (1992).
Maclouf, J., Grassi, J., and Pradelles, P. Development of enzyme-immunoassay techniques for the measurement of eicosanoids. 355-364 (1987).
Pradelles, P., Grassi, J., and Maclouf, J.A. Enzyme immunoassays of eicosanoids using acetylcholinesterase as label: An alternative to radioimmunoassay. Anal Chem 57 1170-1173 (1985).
Erickson, G.F. The ovary: Basic principles and concepts. A. Physiology. 3rd ed. 973-1015 (1995).
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