Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2001-10-30
pubmed:abstractText
The colorful group of compounds known as carotenoids are present in many plants, where they provide photoprotection and act as accessory pigments in photosynthesis. Many epidemiologic studies have shown strong associations between diets rich in carotenoids and a reduced incidence of many forms of cancer, and that finding led to the suggestion that the antioxidant properties of those compounds might help protect immune cells from oxidative damage, thus enhancing their ability to detect and eliminate tumor cells. Since the early 1980s, there have been reports supporting that hypothesis. However, more recently, after large prospective studies did not show protective effects of beta-carotene supplementation, more attention has been given to studies defining optimal levels of intake that can be achieved within a well-balanced diet. The latest intervention studies have suggested that, in well-nourished, healthy individuals, a moderate level of carotenoid supplementation is neither beneficial nor harmful. However, supplementation might be appropriate in undernourished or less healthy individuals, particularly if they are elderly. Future studies comparing supplements with real foodstuffs, combined with postgenomic technologies, will help define optimal intakes for different sectors of the population.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0899-9007
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
823-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Dietary carotenoids and human immune function.
pubmed:affiliation
Immunology Group, Nutrition, Health and Consumer Science Division, Institute of Food Research, Norwich Research Park, Norwich, Norfolk, NR4 7UA, United Kingdom. davidA.hughes@bbsrc.ac.uk
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't