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  • Title: Measurement of eicosanoids in menstrual fluid by the combined use of high pressure chromatography and radioimmunoassay.
    Author: Hofer G, Bieglmayer C, Kopp B, Janisch H.
    Journal: Prostaglandins; 1993 May; 45(5):413-26. PubMed ID: 8321911.
    Abstract:
    Methods are described for the quantification of various eicosanoids (cyclooxygenase products: 6-KETO, TXB2, PGE2, PGF2 alpha, DHK; lipoxygenase products: 5-, 12-, 15-HETE, LTB4, LTC4, LTD4, LTE4) in menstrual blood collected by tampons. Samples were extracted with acidified ethanol. After purification by SEP-PACK C18 columns, the compounds were separated by reversed phase HPLC using a ternary gradient system. The eicosanoid concentrations of the fractionated eluents were measured by radioimmunoassay and corrected for recovery. 12-HETE was the most prominent metabolite of arachidonic acid in menstrual blood (mean: 1174 ng/g blood). With the exception of PGF2 alpha and TXB2 (mean: 343 and 212 ng/g blood, respectively) other eicosanoids were detected in remarkable lower concentrations.
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