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Lutein (/ ˈljuːtiɪn, - tiːn /; [2] from Latin luteus meaning "yellow") is a xanthophyll and one of 600 known naturally occurring carotenoids. Lutein is synthesized only by plants, and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots. In green plants, xanthophylls act to ...
Wyeth. Pfizer. GSK. Website. www.centrum.com. Centrum is an American brand of multivitamins produced by Haleon. It was previously owned by Pfizer (formerly Wyeth) and GSK. [1] Centrum multivitamins in Australasian packaging.
Xanthophyll. The characteristic color of egg yolk results from the presence of a xanthophyll pigment typical in color of lutein or zeaxanthin of the xanthophylls, a division of the carotenoids group. Xanthophylls (originally phylloxanthins) are yellow pigments that occur widely in nature and form one of two major divisions of the carotenoid ...
Meso -zeaxanthin. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Meso-zeaxanthin (3R,3′S-zeaxanthin) is a xanthophyll carotenoid, and is one of the three stereoisomers of zeaxanthin. The meso- form is the second most abundant in nature, after 3R,3′R-zeaxanthin, which is ...
In plants, the xanthophyll lutein is the most abundant carotenoid and its role in preventing age-related eye disease is currently under investigation. [5] Lutein and the other carotenoid pigments found in mature leaves are often not obvious because of the masking presence of chlorophyll. When chlorophyll is not present, as in autumn foliage ...
Triptorelin is a gonadorelin analogue, also known as luteinizing hormone releasing analogue (GnRH analogue, LHRH analogue). [3] The drug binds to receptors in the pituitary gland and stimulates secretion of gonadotropins (namely luteinizing hormone LH and follicle-stimulating hormone FSH). This causes an initial phase of LH and FSH stimulation ...