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Latest Radical Stories

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2009-09-15 08:24:15

A team of University of Hawai'i at Mānoa researchers led by Ralf Kaiser, physical chemist at UH Mānoa, unraveled the chemical evolution of the orange-brownish colored atmosphere of Saturn's moon Titan, the only solar system body besides Venus and Earth with a solid surface and thick atmosphere. The UH Mānoa team, including Xibin Gu and Seol Kim, conducted simulation experiments mimicking the chemical reactions in...

2009-09-14 18:12:54

The growth of cancerous tumors is fueled, in part, by the buildup of free radicals, or oxygen-containing molecules, U.S. researchers say. Chemical biologist Kate Carroll of the University of Michigan in Ann Arbor and colleagues say their method monitors an early tip-off of oxidative stress -- sulfenic acid in proteins produced when the oxidant hydrogen peroxide reacts with the protein building block cysteine. The researchers managed to use a chemical probe to trap the small, transient,...

2009-07-23 13:51:21

U.S. researchers have linked free radicals inhaled as an infant to lung disease as an adult. Using protein profiling techniques, the researchers found the genes of infants breathing in environmentally persistent free radicals present in airborne ultra fine particulate matter produced a number of proteins -- including one associated with chronic obstructive pulmonary disease and steroid-resistant asthma. The exposure to ultra fine air pollution also caused proteins to misfold, rendering them...

2009-06-11 13:20:00

OSCEOLA, Wis., June 11 /PRNewswire/ -- NeuroScience, Inc. has launched an antioxidant protocol that combines an objective assessment of glutathione levels along with unique antioxidant compounds, including OSR#1, CysNAC, and NeuroVitamins. These products are capable of eliminating free radicals in both the fat soluble and water soluble areas of the body. Oxidative stress occurs when the body's supply of antioxidants, mainly glutathione, is insufficient to bind and remove potentially harmful...

2009-05-29 08:05:14

Oxidative stress has been linked to aging, cancer and other diseases in humans. Paradoxically, researchers have suggested that small exposure to oxidative conditions may actually offer protection from acute doses. Now, scientists at the University of California, San Diego, have discovered the gene responsible for this effect. Their study, published in PLoS Genetics on May 29, explains the underlying mechanism of the process that prevents cellular damage by reactive oxygen species (ROS)."We...

2009-05-05 07:51:15

Children exposed to cigarette smoke have lower levels of antioxidants, which help the body defend itself against many biological stresses. A University of Rochester Medical Center study looked at the levels of antioxidants versus the amount of smoke exposure in more than 2,000 6 and 18 years old in the 2003-2004 National Health and Nutrition Examination Survey (NHANES). The study, which was presented at the Pediatric Academic Society Meeting in Baltimore, shows that secondhand smoke exposure...

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2009-01-31 13:10:00

Researchers trace benefits to acid produced in decomposing organic compound A Queen's-led team has discovered the reason why garlic is so good for us. Researchers have widely believed that the organic compound, allicin "“ which gives garlic its aroma and flavor "“ acts as the world's most powerful antioxidant. But until now it hasn't been clear how allicin works, or how it stacks up compared to more common antioxidants such as Vitamin E and coenzyme Q10, which stop the damaging...

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2009-01-23 09:46:01

Brown University researchers have identified a cellular mechanism that could someday help fight the aging process. The finding by Stephen Helfand and Nicola Neretti and others adds another piece to the puzzle that Helfand, a professor of biology, molecular biology, cell biology and biochemistry, first discovered in 2000. Back then, he identified a mutation in the Indy ("I'm Not Dead Yet") gene that can extend the life span of fruit flies. Subsequent studies of the Indy flies have led to the...

2008-12-11 09:17:54

When the University of Chicago's David Mazziotti talks about chemistry, perhaps he is thinking about how the behavior of all of the electrons in a molecule can be anticipated from the behavior of just two of its electrons.For 50 years theoretical chemists have puzzled over the problem of predicting many-electron chemistry with only two electrons, which many thought intractable and perhaps impossible to solve. Mazziotti, an associate professor in chemistry, will present a new approach to...

2008-12-08 07:32:00

BOSTON, Dec. 8 /PRNewswire/ -- Bell Ventures LLC, a leader in innovative antioxidant solutions in food, nutrition, and skin care, announces the release of its new, high-performance natural ingredient, GlobalPAX(TM). GlobalPAX(TM) is a proprietary extract made from the world's finest natural sources of proanthocyanidins (PACs), a powerful class of antioxidants. It is the first high-performance ingredient to standardize antioxidant capacity to Total ORAC, which analyzes antioxidant...