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Tag: "skin" at biology news

Signal protein shows promise for blocking tumor promoters in skin cells

...teract the effects of tumor-promoting molecules in skin cells, according to new research by investigators ...formation. Src kinase activity is elevated in most skin cancers and in common carcinomas, including those of the breast and colon. At the same time, levels ...

Men with prostate cancer avoid radiation due to misconceptions

...am of radiation, or X-ray, is directed through the skin to the cancer and the immediate surrounding area to kill the cancer. To minimize side effects, radiation is given five days a week for several weeks. Many men with prostate cancer choose external beam radiation over other treatments because it is non...

Why don't all moles progress to melanoma?

...start dividing abnormally to form a deadly form of skin cancer called melanoma. About one in 65 Americans...U-M study ?involving melanocytes from normal human skin and biopsies of non-malignant human moles ?are being published in the October issue of Nature Cell B...

Record ozone loss during 2006 over South Pole

...per year on a global scale, increasing the risk of skin cancer, cataracts and harm to marine life. The thinning of the ozone is caused by the presence of pollutants in the atmosphere such as chlorine, originating from man-made pollutants like chlorofluorocarbons (CFCs), which have still not vanished fr...

Solution to bacterial mystery promises new drugs

... organisms are Staphylococcus aureus, which causes skin infections and serious blood infections, and Streptococcus pneumoniae, which causes pneumonia. The terms "gram-positive" and "gram-negative" refer to the response of bacteria to a standard laboratory process by which they are stained as a first step ...

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

... 75 percent of CA-MRSA infections are localized to skin and soft tissue and usually can be treated effecti...y people. One of the biggest problems with CA-MRSA skin infections is that they spread rapidly and have the potential to cause illness much more severe than...

German researchers develop first non-invasive test to measure skin aging

...y measures in real time the level of damage to the skin from sun exposure and aging, and initial results suggest that women's skin ages faster than men's. Findings appear in the October 1 issue of Optics Letters, a journal of the O...

Edible coatings will be the packaging of the future

...it has been shown that the coating formed a second skin on the breast and onto which various additives, such as antimicrobians, can be added Despite the fact that the coatings did not manage to reduce microbian evolution, it has been shown that the WPI forms a film on chicken breasts which is homogeneou...

Researchers identify a key regulator for skin stem cells

... turning on a single gene, researchers can prevent skin stem cells from maturing into the three types of adult skin cells -- epidermal, sebaceous and hair cells. They say this finding could have important implication...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...reus, or staph, is a common bacterium found on the skin or in the nose of a quarter to a third of all people. Usually harmless, staph can cause skin infections such as pimples and boils and, less frequently, serious infections of surgical wounds or ...

Firefighters face increased risk for certain cancers

... substances can be inhaled or absorbed through the skin and occur both at the scene of a fire and in the f...quipment to help firefighters avoid inhalation and skin exposures to known and suspected occupational carcinogens," says Lockey, professor of environmental ...

New sunscreen ingredient to heal sunburn and help prevent skin cancer

...unscreen ingredient that actively repairs sunburnt skin and helps prevent the onset of skin cancer, according to research published in the Journal of Investigative Dermatology. Unlike conve...

Embryonic patterning makes the feathers fly

... or more properly feather buds, will appear on the skin of the developing embryo wherever fibroblast growt...discern which pathway mediates FGF activity during skin patterning, the researchers set up a cultured embryonic chicken skin model and targeted a variety of...

From managing sugar to managing healing

..., recently found that applying insulin directly to skin wounds significantly enhanced the healing process....ing blood vessels. In follow-up studies of human skin cells in culture, Manuela Martins-Green and colleagues explored the molecular impact of topical insu...

Replacing insulin is top-ranked breakthrough foreseen for health in developing world

...ries. Already regenerative medicine has produced a skin substitute (Apligraf), a bone regenerating therapy (Osteocel) and other medical breakthroughs. An eye institute in India (L.V. Prasad) has used adult stem cell therapy to repair the corneas of over 125 blind patients; an estimated 60% of blindness i...

Children of allergy sufferers prone to same problem

...udy suggests that the current practice of avoiding skin testing for airborne allergens before age 4 or 5 should be reconsidered, so children in this high-risk group can be detected early and monitored for the possibility of later allergic respiratory disease. Produced by scientists in UC's departments o...

U-M researchers use nanoparticles to target brain cancer

...types of cancer, including esophageal, bladder and skin cancers. It works by traveling through blood vesse...e effect of photodynamic therapy, in which healthy skin becomes sensitive to light. In rat studies, researchers found those treated traditionally with Ph...

Researchers barcode DNA of Venice museum's vast fungi collection

...gi can lead to human illness, including pneumonia, skin infections, allergies and asthma. Garbelotto is perhaps best known for his work in the identification of Phytophthora ramorum, the fungus-like plant pathogen that made its way from Europe to the United States. The pathogen is responsible for sudde...

Two-faced protein can stop metastasis or promote it, researchers say

...inside of organs and body cavities and the outside skin of humans. "E-cadherin holds a human's cells and tissues together," Anastasiadis says. The other cadherins featured in this study belong to a group that collectively is called "mesenchymal" cadherins, which provide a looser bond between the cells th...

Cigarette smoking impedes tendon-to-bone healing

...esearchers implanted tiny, osmotic pumps under the skin of the rats, and those pumps delivered either nicotine or an inactive saline solution. Saline pumps were implanted to ensure that any changes observed between groups of rats resulted from nicotine exposure rather than from having a pump implanted ben...

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