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A research team at Worcester Polytechnic Institute has been awarded a $452,000 National Institutes of Health grant to bioengineer a patch to help cardiac muscle beat more strongly and efficiently after a heart attack.
A new review is the first to directly examine the role of various stem cells in the healing of wounded cornea, the outermost part of the eye. In contrast with most other reviews, it covers all major corneal cell types in a comprehensive way, showing similarities and differences in the healing process and the usage of stem cells for therapy.
Cells in the body or in cultures eventually stop replicating. This phenomenon is called "senescence" and is triggered by shortening of telomeres, oxidative stress or genetic damage to the cells, either acute or simply due to the cell growing "old".
Why use regular sunscreen when you can apply a DNA film to your skin? Researchers at Binghamton University, State University of New York have developed a coating made out of DNA that gets better at protecting skin from ultraviolet light the more you expose it to the sun, and it also keeps your skin hydrated.
Injury or disease in combination with too little vitamin D can be bad for the window to your eyes. The three-layer, transparent cornea at the front of the eyes focuses the light coming in. But its prominent position also puts it at risk for injury from an errant mascara wand or over-prodding finger or a car accident.
Scientists have found a new way to protect stem cells from harsh inflammation during wound repair. In a study recently published in the journal Cytotherapy, researchers in India discovered that treating mice with a common anti-inflammatory drug called celecoxib promoted stem cell survival and healing when they injected the cells into wounds.
Organs respond to injuries with the formation of new fibrous tissue, which can result in scarring. This process called fibrogenesis can now be monitored noninvasively on a molecular level, as American scientists report in the journal Angewandte Chemie.
Cells push out tiny feelers to probe their physical surroundings, but how much can these tiny sensors really discover? A new study led by Princeton University researchers and colleagues finds that the typical cell's environment is highly varied in the stiffness or flexibility of the surrounding tissue, and that to gain a meaningful amount of information about its surroundings, the cell must move around and change shape.