Classification Term: 169185

9,9'-epoxylignans (ontology term: d545fce3017ee0fcfd6f2276da4be756)

found 2 associated metabolites at sub_class metabolite taxonomy ontology rank level.

Ancestor: Tetrahydrofuran lignans

Child Taxonomies: There is no child term of current ontology term.

Enterolactone

()-trans-dihydro-3R,4R-bis[(3-hydroxyphenyl)methyl]-2(3H)-furanone

C18H18O4 (298.1205028)


Enterolactone (CAS: 78473-71-9) is a mammalian lignan that has a similar biphenolic structure to lignans from plants. Lignans are compounds with estrogenic properties and are probably the most important source of phytoestrogens in western diets. Mammalian lignans are formed from precursors that are contained mainly in vegetables, whole grain products, and berries, via the action of intestinal microflora. Enterolactone is produced in the colon by the action of bacteria on secoisolariciresinol, matairesinol, and its glycosides. Secoisolariciresinol is converted to enterodiol which is subsequently converted to enterolactone as it passes through the colon. Matairesinol is converted directly to enterolactone. Enterolactone has been shown to possess weakly estrogenic and antiestrogenic activities, and it has been suggested that the high production of this antiestrogenic mammalian lignans in the gut may serve to protect against breast cancer in women and prostate cancer in men; however epidemiological evidence to date is conflicting (PMID: 16168401, 12270221, 11216511, 12107024). Enterolactone is a biomarker for the consumption of soybeans and other soy products. D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D004967 - Estrogens

   

Enterolactone

3,4-Bis((3-hydroxyphenyl)methyl)dihydro-2-(3H)-furanone

C18H18O4 (298.1205028)


D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D004967 - Estrogens CONFIDENCE standard compound; INTERNAL_ID 483; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3951; ORIGINAL_PRECURSOR_SCAN_NO 3949 CONFIDENCE standard compound; INTERNAL_ID 483; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3959; ORIGINAL_PRECURSOR_SCAN_NO 3958 CONFIDENCE standard compound; INTERNAL_ID 483; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3921; ORIGINAL_PRECURSOR_SCAN_NO 3919 CONFIDENCE standard compound; INTERNAL_ID 483; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3952; ORIGINAL_PRECURSOR_SCAN_NO 3950 CONFIDENCE standard compound; INTERNAL_ID 483; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3939; ORIGINAL_PRECURSOR_SCAN_NO 3935 CONFIDENCE standard compound; INTERNAL_ID 483; DATASET 20200303_ENTACT_RP_MIX506; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3939; ORIGINAL_PRECURSOR_SCAN_NO 3937 Annotation level-1