flavonoid

(redirected from Isoflavonoids)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Isoflavonoids: Soy isoflavones

flavonoid

/fla·vo·noid/ (fla´vah-noid) any of a group of compounds containing a characteristic aromatic nucleus and widely distributed in higher plants, often as a pigment; a subgroup with biological activity in mammals is the bioflavonoids.

flavonoid

Herbal medicine
Any of a family of yellow pigments which are chemically similar to tannins and somewhat similar in use; flavonoids have been used for bruising, hay fever and menorrhagia. 

Nutrition
A family of biologically active polyphenolic compounds found in fruits (in particular in the pulp thereof), vegetables, tea and red wine, which are potent antioxidants and effective platelet inhibitors; a flavonoid-rich diet may protect against atherosclerosis and platelet-mediated thrombosis, due to flavonoids’ platelet-inhibition.

flavonoid

Bioflavonoid Nutrition Any biologically-active polyphenol found in fruits, especially in the pulp, vegetables, tea, red wine, which are potent antioxidants and platelet inhibitors

fla·vo·noid

(flāvō-noyd)
Metabolite from plant matter.

Flavonoid

A food chemical that helps to limit oxidative damage to the body's cells, and protects against heart disease and cancer.
Mentioned in: Smoking
References in periodicals archive ?
Keywords used were: black cohosh, dong quai, evening primrose oil, ginseng, liquorice, red clover, sage, soy, kudzu, hormone replacement therapy and alternatives, phytoestrogens, isoflavonoids, menopause, hot flush, menopause supplement and non-prescription supplement.
Legumes, especially soy beans, contain isoflavonoids.
Epidemiologic studies as well as clinical studies showed that isoflavonoids lower the risk of prostate cancer.
In a previous study, red propolis was characterized as being especially rich in isoflavonoids (Silva et al.
Recently, isoflavonoids have received much more attention since more and more studies on humans, animals and cell culture systems have suggested that isoflavonoides play an important role in the prevention of oxidative damage, menopausal symptoms, osteoporosis, cancer, heart disease (Kurzer and Xu, 1999).
Other phenolic metabolites previously used as biomarkers of food consumption include 4'-O-methylgallic acid (the main gallic acid metabolite) for tea (14), isoferulic acid for coffee (14), and isoflavonoids for soy (15).
According to Linnea, the conclusion of the study--which involved nearly 1500 prostate cancer cases and more than 1100 controls--supports the hypothesis that high intake of food items rich in phytoestrogens was associated with decreased risk of prostate cancer; but it did not find an association between dietary intake or total of individual lignans or isoflavonoids and risk of prostrate cancer.
Isoflavonoids are widely distributed in the legume family, with concentrations approximately 50-fold higher in soybeans (37.
x) Morton MS, et al, Lignans and isoflavonoids in plasma and prostatic fluid in men: samples from Portugal, Hong Kong, and the United Kingdom, Prostate 1997:32:122-8
These secondary plant compounds include a spectrum of complex organic molecules that include phytoestrogens, isoflavonoids, anthocyanins, polyphenols, and glucosinolates.