• vitamin C and beta-carotene
  • Now researchers from the University of Ulm, among them the Epidemiologist Professor Gabriele Nagel and the Neurologist Professor Christine von Arnim, have discovered that the serum-concentration of the antioxidants vitamin C and beta-carotene are significantly lower in patients with mild dementia than in control persons. (redorbit.com)
  • Results are quite interesting: The concentration of vitamin C and beta-carotene in the serum of AD-patients was significantly lower than in the blood of control subjects. (redorbit.com)
  • Longitudinal studies with more participants are necessary to confirm the result that vitamin C and beta-carotene might prevent the onset and development of Alzheimer's disease", says Gabriele Nagel. (redorbit.com)
  • The fruit contains vitamin C and beta carotene. (wikipedia.org)
  • Immune
  • But scientists at Ohio State University have found that certain molecules that derive from beta-carotene have an opposite effect in the body: They actually block some actions of vitamin A, which is critical to human vision, bone and skin health, metabolism and immune function. (scienceblog.com)
  • By including omega-3 and omega-6 fatty acids, vitamin E, β-carotene as well as pre- and pro-biotics, the immune system can be boosted and maintained to help improve overall health. (wikipedia.org)
  • AREDS
  • Recently, beta-carotene was taken out of the supplement regime in the AREDS II clinical trial, due to its potential risk of promoting lung cancer in those who smoke. (blindness.org)
  • In AREDS2, participants took one of four AREDS formulations: the original AREDS formulation, AREDS formulation with no beta-carotene, AREDS with low zinc, AREDS with no beta-carotene and low zinc. (wikipedia.org)
  • molecules
  • The scientists aren't recommending against eating foods high in beta-carotene, and they are continuing their studies to determine what environmental and biological conditions are most likely to lead to these molecules' production. (scienceblog.com)
  • In this new study, the Ohio State researchers showed that some of these molecules are produced when beta-carotene is broken in a different place by processes that are not yet fully understood and act to antagonize vitamin A. (scienceblog.com)
  • Curley manufactured a series of beta-carotene-derived molecules in the lab that match those that exist in nature. (scienceblog.com)
  • Analyzing blood samples obtained from six healthy human volunteers, the scientists in the Schwartz lab found that some of these anti-vitamin-A molecules were present in every sample studied, suggesting that they are a common product of beta-carotene metabolism. (scienceblog.com)
  • found
  • It's important to note that beta-carotene may not be an appropriate supplement for those who have RP (instead, 15,000 IU of vitamin A palmitate has been found to help prolong vision retention in individuals with RP). (blindness.org)
  • We determined that these compounds are in foods, they're present under normal circumstances, and they're pretty routinely found in blood in humans, and therefore they may represent a dark side of beta-carotene," said Earl Harrison , Dean's Distinguished Professor of Human Nutrition at Ohio State and lead author of the study. (scienceblog.com)
  • Vitamins
  • Carrot juice has a particularly high content of β-carotene, a source of vitamin A, but it is also high in B complex vitamins like folate, and many minerals including calcium, copper, magnesium, potassium, phosphorus, and iron. (wikipedia.org)
  • Source
  • This means that if compounds contained in a typical source of the vitamin are actually lowering its activity instead of promoting its benefits, too much beta-carotene could paradoxically result in too little vitamin A. (scienceblog.com)
  • product
  • The over-the-counter synthetic beta-carotene product Lumitene is U.S. Food and Drug Administration (FDA)-approved for helping with the sensitivity to sunlight in this disease. (livingnaturally.com)