New tools developed for studying neurodegenerative brain disorders
...ented the degradation of the cytoskeleton. "These antioxidant vitamins neutralized the free radicals before they had a chance to degrade the model axon," Weiss explained. "Simple models also allow us to build more complicated hypotheses, which later can be tested in complex living systems, such as laboratory an...Nutritional friend or foe? Vitamin E sends mixed messages
...nts, promoting this version of vitamin E as a good antioxidant source. In theory, taking a vitamin supplement a concentrated form of the vitamin - increases the amount of that substance in the body. Using laboratory techniques that allowed them to detect the activity of the quinones inside the cells, the resear...Study with smokers shows vitamins combine for benefits
...s who took supplements had about the same level of antioxidant protection as non-smokers. "A lot of nutrition res... has adequate levels of vitamin E, this protective antioxidant can interact with the peroxyl radicals created by cigarette smoke and prevent the destruction of lun...Antioxidant supplementation not associated with decreased risk of prostate cancer
...amined associations between intakes of these three antioxidant micronutrients and the risk of prostate cancer. Ri...rt for population-wide implementation of high-dose antioxidant supplementation for the prevention of prostate cancer," the authors write. "They do suggest, however...Age-related memory improvement linked with consumption of apple products
...gar and energy content of the apple juice, but the antioxidant attributes of apple juice that are responsible for the positive effects....Tomato juice keeps emphysema from developing in new model; Lycopene cited
...eating habits, "Seyama said. Looking for a natural antioxidant in food, "we thought lycopene might be a good candidate," he added. However, Seyama (and the AJP-Lung paper Kasagi et al.) cautioned: "We can't simply accept that these results go beyond the mouse model. They are not so smoothly applied to human bein...Key brain antioxidant linked to Alzheimer's and Parkinson's
...utathione, which Swanson terms "the most important antioxidant in the brain." It had been thought previously that...EAAC1-deficient mice contained lower levels of the antioxidant glutathione compared to those of the normal mice. Taken together, these results "support the idea th...New study finds common herbal supplement helps to reduce cocaine cravings
... the counter as an herbal supplement known for its antioxidant effects. Antioxidants are agents that clean up da...r scale studies are complete. In addition to its antioxidant properties, NAC is currently used in a variety of other ways: to counteract the effects of an overdo...Compound in wine reduces levels of Alzheimer's disease-causing peptides
...different components, including well-characterized antioxidant molecules. Therefore, we cannot exclude the possibility that several compounds work in synergy with small amounts of resveratrol to slow down the progression of the neurodegenerative process in humans." Following up on their studies, Marambaud and hi...Heme controls antioxidants and iron in ferritin
...n gene can be controlled by heme, and other common antioxidant regulators. Heme is the molecule that activates ma...eme might be a "master switch" for iron genes, and antioxidant genes, which are the genes that protect and repair damage caused by oxygen radicals. If that mechani...New method shows mushrooms a top source for one antioxidant
... that mushrooms are a better natural source of the antioxidant ergothioneine than either of the two dietary sourc... kind in the U.S., have about 12 times more of the antioxidant than wheat germ and 4 times more than chicken liver, the previous top-rated ergothioneine sources ba......t there is little convincing evidence that dietary antioxidant supplements such as vitamin E prevent heart diseas..."There has been a lot of hype which suggested that antioxidant vitamin supplements had a beneficial outcome for cardiovascular disease. There is no good scientifi...New factor implicated in allergy and asthma attacks
...allergic inflammation. These findings suggest that antioxidant substances may be useful in forestalling allergy o...idase and antigens into the airways, making airway antioxidant levels the critical factor. "The antioxidant has to be there when the person is exposed, and if the ...Tufts nutrition scientists say it is premature to focus on nutrient supplements over diet
...eficiency disease. In one study, adding a nutrient antioxidant cocktail to a well established cholesterol-lowering drug treatment actually lessened the beneficial effect. "We still have a lot to learn about the use of high doses of nutrients. The important point is to prevent the cart from getting in front of th...Boosting vitamin C in plants can help reduce smog damage
...ring the leaf by closing their stomata, or use the antioxidant qualities of vitamin C to detoxify the ozone that enters through open stomata and also protect the photosynthetic machinery in the leaf. Studying acute and chronic ozone exposures, Gallie and Chen looked at which plants fared better, those with lower...Women's health study finds vitamin E does not protect women from heart attack, stroke, or cancer
...public and scientific interest in the potential of antioxidant vitamins like vitamin E to reduce the risk of cardiovascular disease. Laboratory and animal research suggested that vitamin E might prevent the accumulation of fatty deposits inside arteries, which would reduce the chance of clogged and blocked arte...Researchers discover gene that determines asthma susceptibility by regulating inflammation
...tion of asthma drugs. Suspecting that a defect in antioxidant response exacerbates asthma severity, the team of ...Nrf2 acts as a master regulator of the majority of antioxidant pathways and detoxifying enzymes for environmental pollutants. This led researchers to consider the ...USC researchers determine mechanism of action of chemotherapy drug
...ctase-that is an important component in the cell's antioxidant system, as well as important in DNA synthesis. In other words, thioredoxin reductase is key to the replication and survival of cells, and its inhibition ultimately leads to cell death. "Our studies showed that MGd induces oxidative stress in cancer c...Vitamin E loss through smoking increases health risks
...might cause cancer, and how the loss of protective antioxidant vitamins can play a role in this process. "Cigarette smoke is an oxidant, creating free radicals that are associated with increased oxidative stress, cell mutations, and can lead to such diseases as cancer, heart disease and diabetes," said Maret Tr...Poplar trees redirect resources in response to simulated attack
...ng to realize that isoprene has a vital role as an antioxidant in helping plants tolerate many different stresses, for example from insects or ozone," Ferrieri said. The scientists have not yet determined if more sugar gets stored in the plants' roots, a key component of the theory. "Because the radiotracer has ...