vitaminalternative names/formsbiological functionsymptoms of deficiency Water-soluble thiaminvitamin B1component of a coenzyme in carbohydrate metabolism; supports normal nerve functionimpairment of the nerves and heart muscle wasting riboflavinvitamin B2component of coenzymes required for energy production and ...
Table 2. Unadjusted and adjusted Odds Ratios and 95% CIs for the association between tertiles of plasma beta-cryptoxanthin and premenstrual symptoms. Table 3. Unadjusted and adjusted Odds Ratios and 95% CIs for the association between tertiles of plasma beta-carotene and premenstrual symptoms. Ta...
Visual symptoms (night blindness) of vitamin A deficiency (VAD) were among the earliest diet-related deficiencies documented. Knowledge of vitamin A chemistry, metabolism and deficiency consequences accrued rapidly during the first eight decades of the 20th century. A series of disorders were described...
a yellow, fat-soluble terpene alcohol, C20H30O, obtained from carotene and occurring in green and yellow vegetables, egg yolk, etc.: essential to the protection of epithelial tissue and the prevention of night blindness. Also calledvitamin A1,retinol. ...
Vitamin A deficiency-associated ocular symptoms have been shown to develop at concentrations less than 10 micrograms/dL.[8]Dietary vitamin A is ingested as either carotenoid from fruits and vegetables or retinoid from animal products. Carotenoids are a provitamin A, most commonly beta-carotene, and...
A deficiency at the gene coding for z-carotene desaturase characterizes the sunflower non dormant-1 mutant. Plant Cell Physiol 2004; 45:445-455. 26 Lee BM, Pack NC, Magill CW, Smith JD. Classification and characterization of the viviparous mutants of maize (Zea mays L.). Maydica 1997; ...
With a USRDA of 10 milligrams, overdoses are equally rare but have been reported as causing fatigue and interfering with the formation of Vitamin A from its precursor, beta carotene. A deficiency of Vitamin E during pregnancy can result in fetal damage. ...
Finally, a deficiency in beta carotene is correlated with the incidence of triple-negative breast cancer [13]. At the cellular level, flavonoids and polyphenols in plants can regulate tumor suppressor genes through epigenetic modifications. For example, polyphenols and flavonoids exert multiple cellular...
Cystic fibrosis.Problems with the digestive system that occur with cystic fibrosis increase the risk of vitamin A deficiency. Macular degeneration.A vitamin mix including beta-carotene slows vision loss in people with macular degeneration. ...
status, sunlight exposure, dietary calcium intakes, dietary calcium to phosphorus ratio and triceps skinfold thickness did not have a significant impact on vitamin D status. Despite Vitamin D deficiency/insufficiency, none of the children on clinical examination had musculoskeletal symptoms (Data not ...