• Its yellow color comes from its content of the xanthophyll carotenoids lutein and zeaxanthin, and is responsible for the maculas ability to filter blue and ultraviolet (UV) light. (naturalproductsinsider.com)
  • Meso-zeaxanthin (3R,3´S-zeaxanthin) is a xanthophyll carotenoid, as it contains oxygen and hydrocarbons, and is one of the three stereoisomers of zeaxanthin.Of the three stereoisomers, meso-zeaxanthin is the second most abundant in nature after 3R,3´R-zeaxanthin, which is produced by plants and algae. (acadiasi.ro)
  • Carotenoids extensively studied in this regard include β-carotene, lycopene,lutein and zeaxanthin. (fliphtml5.com)
  • The main carotenes (α-carotene, β-carotene, and lycopene) are made up of only carbon and hydrogen, while the xanthophylls (lutein, zeaxanthin, β-cryptoxanthin, and astaxanthin) contain oxygen. (myhdiet.com)
  • Carotenoids such as beta-carotene, lycopene, lutein and beta-cryptoxanthin are produced in plants and certain bacteria, algae and fungi, where they function as accessory photosynthetic pigments and as scavengers of oxygen radicals for photoprotection. (wikipedia.org)
  • The most studied so far are the carotenes Beta-carotene, and Lycopene. (ayoungerskin.com)
  • Taking beta-carotene along with lycopene may alter the amount of lycopene that is absorbed from the gut. (medlineplus.gov)
  • Lycopene is a type of organic pigment called a carotenoid. (medlineplus.gov)
  • High β-carotene, α-carotene, lycopene, and β-cryptoxanthin all tended to reduce CRC risk. (frontiersin.org)
  • The evidence supporting health benefits of vegetables and fruits provide a rationale for identification of the specific phytochemicals responsible, and for investigation of their molecular and cellular mechanisms of action. (psychosocialsomatic.com)
  • One general mechanism of action of phytochemicals that is emerging from recent studies is that they activate adaptive cellular stress response pathways. (psychosocialsomatic.com)
  • Lycopene is commonly consumed in certain fruits and vegetables. (medlineplus.gov)
  • Lycopene is commonly found in many fruits and vegetables, but particularly in tomato products, including fresh tomatoes, tomato sauce, ketchup, and tomato juice. (medlineplus.gov)
  • Lycopene is a powerful antioxidant that might help protect cells from damage. (medlineplus.gov)
  • Yet, the biological role and mechanism of Deinococcus radiodurans -derived extracellular vesicles remain unclear. (biomedcentral.com)
  • In this article we describe the hormesis hypothesis of phytochemical actions with a focus on the Nrf2/ARE signaling pathway as a prototypical example of a neuroprotective mechanism of action of specific dietary phytochemicals. (psychosocialsomatic.com)
  • Taking lycopene by mouth might slightly reduce the risk of developing prostate cancer. (medlineplus.gov)
  • People who eat more lycopene in their diet don't seem to have a lower risk for bladder cancer. (medlineplus.gov)
  • Also, people with diabetes who eat more lycopene don't seem to have a lower risk of dying from heart disease. (medlineplus.gov)
  • Taking lycopene along with medications that also slow blood clotting might increase the risk of bruising and bleeding. (medlineplus.gov)
  • Lycopene might slow blood clotting and increase the risk of bleeding. (medlineplus.gov)
  • Fat substitutes such as olestra might reduce the amount of lycopene that is absorbed by the body. (medlineplus.gov)
  • 9-cis-epoxycarotenoid dioxygenase from plants, which cleaves 9-cis xanthophylls to xanthoxin, a precursor of the hormone abscisic acid. (wikipedia.org)
  • 12. Lutein, lycopene, and their oxidative metabolites in chemoprevention of cancer. (nih.gov)
  • 9-cis-epoxycarotenoid dioxygenase from plants, which cleaves 9-cis xanthophylls to xanthoxin, a precursor of the hormone abscisic acid. (wikipedia.org)
  • Stable overexpression of the Llccs gene in callus tissue of Iris germanica, which accumulates several xanthophylls including violaxanthin, the precursor of capsorubin, resulted in transgenic callus whose color had changed from its normal yellow to red-orange. (oregonstate.edu)
  • This distinct functional group imparts the organic mechanism behind the antioxidant activity of the compound when it encounters free radicals. (regimenlab.com)
  • It acts through slightly altering the basic mechanism of skin cell formation, to stimulate more skin cell formation. (nakedactives.com)
  • Environ was born out of Dr Fernandes' study of mechanisms of skin and skin cancer as well as Retinyl Palmitate (vitamin A). (minooslaserbeauty.com.au)
  • 19. Potential synergy of phytochemicals in cancer prevention: mechanism of action. (nih.gov)