One of the key questions in biology is to identify how tissues are repaired after trauma and understand how stem cells migrate, proliferate, and differentiate to repair tissue damage. Researchers define, for the first time, the changes in the stem cell dynamics that contribute to wound healing.
Tanning devices cost the US $343.1 million a year in medical costs because of the skin cancers their use is associated with, according to a new study. In a new study, researchers established how prevalent indoor tanning-related skin cancers are in the US, and calculated the costs of these diseases.
Researchers have recently refined a classic Raman-based technique and succeeded in imaging the two dominant melanin molecules -- a breakthrough that could lead to new understandings and, critically, early detection of melanoma, say investigators.
Each year, about 2 million people contract leishmaniasis, which results in disfiguring skin ulcers that may take months or years to heal and in rare cases can become metastatic, causing major tissue damage. Now a team of researchers has a promising target for treatment.
Researchers were intrigued that living organisms emit small amounts of light resulting during oxidative metabolism, when oxygen is used to create energy by breaking down carbohydrates. The researchers began to think about how detecting this light could have potential for biomedical diagnostics.
When it divides, a stem cell has a choice: produce more stem cells or turn into the specific types of cells that compose skin, muscle, brain, or other tissue. New experiments in skin show this decision can be altered if tiny organs within cells aren't positioned and divvied up properly.
The red berries of the Brazilian peppertree -- a weedy, invasive species common in Florida -- contain an extract with the power to disarm dangerous antibiotic-resistant staph bacteria, scientists have discovered.
More than six million cases of chronic wounds cost $20 billion each year in the United States. Diabetic ulcers, pressure sores, surgical site wounds and traumatic injuries to high-risk patients account for most wounds that won't heal. However, data indicates that a recently developed skin-graft harvesting system aids in chronic wound recovery and reduces care costs by accelerating the healing process.
A substantial part of people, one in five, undergoing systemic treatment for psoriasis (i.e. pills taken orally, injections or infusions) still have considerable problems with their disease, according to a recent study.
Prolonged exposure to high temperatures can raise both the skin and core temperature, reducing blood flow to the brain and limbs during exercise and limiting the ability to exercise for long periods, research shows. The study is the first of its kind to separate the effects of skin- versus internal-raised temperature (hyperthermia).
Scientists have discovered the signaling pathways that help hair follicles and sweat glands form during development, and identified the mechanism that allows both of these features to coexist in human skin. The findings may improve the methods used to grow tissue used in grafting procedures.
Using solar cells placed under the skin to continuously recharge implanted electronic medical devices is a viable one. Swiss researchers have done the math, and found that a 3.6 square centimeter solar cell is all that is needed to generate enough power during winter and summer to power a typical pacemaker.
Researchers have identified the signals and exact timing during embryonic development that dictate the fate of skin cells to be sweaty or hairy. Unlike other mammals that must pant or seek shade when overheated, humans are able to self-cool by sweating.
Male hypogonadism is a condition that diminishes testosterone levels in approximately 30% of older men, but currently available therapies can produce serious side effects. In a new study, researchers developed an alternative approach involving the direct conversion of adult skin cells into functional testosterone-producing cells. When transplanted into male rodents with hypogonadism, these so-called Leydig-like cells survived and restored normal testosterone levels.