News tagged with radiation damage
Size matters -- even for molecules
(PhysOrg.com) -- Two electrons that are emitted from a large molecule by a single photon may originate from far apart within that molecule. In a recent study on hydrocarbon molecules consisting of one to five ...
Feb 03, 2012 |
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First-of-its-kind head patch monitors brain blood flow and oxygen
A research team led by investigators at Mayo Clinic in Florida has found that a small device worn on a patient's brow can be useful in monitoring stroke patients in the hospital. The device measures blood oxygen, similar ...
Medicine & Health / Cardiology
Feb 01, 2012 |
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Scientists identify novel approach to view inner workings of viruses
Since the discovery of the microscope, scientists have tried to visualize smaller and smaller structures to provide insights into the inner workings of human cells, bacteria and viruses. Now, researchers at the National Institute ...
Jan 12, 2012 |
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Fastest X-ray images of tiny biological crystals
(PhysOrg.com) -- An international research team headed by DESY scientists from the Center for Free-Electron Laser Science (CFEL) in Hamburg, Germany, has recorded the shortest X-ray exposure of a protein crystal ...
Jan 05, 2012 |
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New take on impacts of low dose radiation
Researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab), through a combination of time-lapse live imaging and mathematical modeling of a special line of ...
Dec 20, 2011 |
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When inflexibility is counterproductive: Mechanism of UV-induced DNA Dewar lesion revealed
Excessive exposure to ultraviolet (UV) radiation of sunlight can result in skin damage and may even induce skin cancers. Irradiation with UV light causes mutations in the DNA, which can interfere with or even inhibit the ...
Nov 28, 2011 |
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New strategy could lead to dose reduction in X-ray imaging
For more than a century, the use of X-rays has been a prime diagnostic tool when it comes to human health. As it turns out, X-rays also are a crucial component for studying and understanding molecules, and a new approach ...
Nov 22, 2011 |
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Laser removal may be advantageous for treating precancerous skin lesions
Carbon dioxide laser ablation (removal) may have a role as an alternative treatment for a common precancerous skin lesion known as lentigo maligna when surgery or radiation therapy is not feasible, according to a report in ...
Nov 21, 2011 |
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Human skin begins tanning in seconds, and here's how
We all know that human skin tans after days spent in the sun. That relatively slow process has known links to ultraviolet (and specifically UVB) exposure, which leads to tanning only after it damages the DNA of skin cells. ...
Nov 03, 2011 |
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Protein family key to aging, cancer
The list of aging-associated proteins known to be involved in cancer is growing longer, according to research by investigators at Vanderbilt-Ingram Cancer Center and the National Institutes of Health (NIH).
Oct 17, 2011 |
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Key function of mutation in hereditary breast and ovarian cancer gene discovered
It is widely known that mutations in the breast cancer susceptibility 1 (BRCA1) gene significantly increase the chance of developing breast and ovarian cancers, but the mechanisms at play are not fully understood. Now, researchers ...
Sep 01, 2011 |
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More evidence that caffeine lowers risk of skin cancer
There might be a time when instead of just drinking that morning cup of coffee you lather it on your skin as a way of preventing harmful sun damage or skin cancer.
Aug 15, 2011 |
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Targeting PTEN may prevent skin cancer
Scientists believe they have identified a role for PTEN, a known tumor suppressor, in removing DNA damage derived from UVB radiation, a known risk factor for non-melanoma skin cancer, according to a study published in Cancer Re ...
Jul 26, 2011 |
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The genome guardian's dimmer switch: Regulating p53 is a matter of life or death
Scientists at the Salk Institute for Biological Studies have found clues to the functioning of an important damage response protein in cells. The protein, p53, can cause cells to stop dividing or even to commit suicide when ...
Jun 30, 2011 |
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States consider banning teens from tanning beds
(AP) -- If a proposed law passes, California teens under 18 will need a fake ID to "fake and bake" themselves to a golden brown.
Jun 27, 2011 |
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