Beta-Carotene

Definition 1

A naturally-occurring retinol (vitamin A) precursor obtained from certain fruits and vegetables with potential antineoplastic and chemopreventive activities. As an anti-oxidant, beta carotene inhibits free-radical damage to DNA. This agent also induces cell differentiation and apoptosis of some tumor cell types, particularly in early stages of tumorigenesis, and enhances immune system activity by stimulating the release of natural killer cells, lymphocytes, and monocytes. (NCI Thesaurus)

Definition 2

A substance found in yellow and orange fruits and vegetables and in dark green, leafy vegetables. The body can make vitamin A from beta carotene. Beta carotene is being studied in the prevention of some types of cancer. It is a type of antioxidant. (NCI Dictionary)

Definition 3

Carotenoid consisting of a cyclic structure on each end with additional double bonds at the number 5 and 5' carbon atoms of the cyclic structures. (NCI Thesaurus/CRCH)

YOU MAY ALSO LIKE

Beta-Blocker Measurement

The determination of the amount of any beta-blocker present in a sample.

Beta-blocker

A type of drug that blocks the action of substances, such as adrenaline, on nerve cells and causes blood vessels to relax…

Beta-Adrenergic Receptor Kinase 2

Adrenergic, Beta, Receptor Kinase 2 (ADRBK2), encoded by the ADRBK2 gene, specifically phosphorylates the agonist-occupied and -activated form of the beta-adrenergic and…

Beta-Adrenergic Receptor Kinase 1

Beta-adrenergic receptor kinase 1 (689 aa, ~80 kDa) is encoded by the human ADRBK1 gene. This protein is involved in both G-protein…

Beta-adrenergic blocking agent

A type of drug that blocks the action of substances, such as adrenaline, on nerve cells and causes blood vessels to relax…

Beta-Adrenergic Antagonist

Natural or synthetic beta adrenergic antagonists selectively or non-selectively blocking or diminishing physiologic beta-adrenergic agonist actions on the sympathetic system. This group…