skin 2 5

Tag: "skin" at biology news

Buildup of damaged DNA in cells drives aging

...fective DNA repair—an important mechanism by which skin and other cell types normally cut out, or excise, ...n which people have a 2,000-fold increased risk of skin cancer from sun exposure. When the investigators obtained cells from the boy and tested them for ...

Long-term cancer risk follows stem cell transplant recipients

...n these patients was 3.1 percent. When nonmelanoma skin cancer and carcinoma in situ of the cervix were ex...mmonly reported second cancers were cancers of the skin (basal and squamous cell), lung, oral cavity, and colon. Furthermore, data analysis showed that ...

Squid skin reveals hidden messages

...al world, squid are masters of disguise. Pigmented skin cells enable them to camouflage themselves--almost...usly--from predators. Squid also produce polarized skin patterns by regulating the iridescence of their skin, possibly creating a "hidden communication chan...

MIT creates 3-D scaffold for growing stem cells

...and tissues used in regenerative medicine, such as skin grafts or neurons to replace brain cells lost to injury or disease. The scaffold itself can be transplanted directly into the body with no ill effects. "The time has come to move on from two-dimensional dishes to culture systems that better repre...

Resistant bacteria increasing source of muscle infection

... It is important the doctors treating patients for skin infections such as cellulitis to use antibiotics that will cure the resistant forms of the bacteria, said Pannaraj. "Be aware that this is out there," she said. "When someone comes in, doctors should be aware that this could be a muscle abscess." ...

Ground spider diversity studied in research project

...rson has never been bitten, although she has had a skin irritation caused by a rosehair tarantula flicking off some of its abdominal hair, she said. Henderson hopes her studies will be a stepping stone to a new career when she graduates in May. "There are few arachnologists," she said. "But that (knowle...

Fat stem cells being studied as option for breast reconstruction

...ate into mature fat cells. When injected under the skin in a rat model, the cellular combination eventually formed what they describe as a "mound" of tissue. The fat-derived stem cells being used in the study are obtained from breast cancer patients. "We need to demonstrate that fat-derived stem ce...

Found -- the apple gene for red

...ght new apple varieties. "The red colour in apple skin is the result of anthocyanins, the natural plant c...cular genes were activated, or expressed, in apple skin as the fruit ripened and coloured. "Apple growers have always known that apple colour is dependan...

Solved: The mystery of flesh-eating bacteria's relentless attack

... A Streptococcus, wreaks destruction on muscle and skin tissue in the form of necrotizing fasciitis, which...g fasciitis is a serious but rare infection of the skin and the tissues beneath it. The work began two years ago, when Hanski developed a mouse model for ...

Blood transfusion-transmitted infections: A global perspective

... of HHV-8, a virus that has the potential to cause skin tumors (Kaposi's Sarcoma) in immunocompromised recipients....

Adults who go to bed lonely get stress hormone boost next morning

...eople's changing social environments get under the skin to influence their biology and health. "Stress systems are designed to translate social experience into biological action," she said. "They are designed to be a conduit from the outside world to our internal worlds so that we can better respond to ou...

ABCB6 is key to production of heme in hemoglobin

...porphyria, a buildup of porphyrins that causes the skin to blister and swell in sunlight; and acute porphoryia, a nerve problem that triggers pain in the chest, abdomen, limbs or back, as well as paralysis, cramping and personality changes or mental disorders. "Also, people with porphyria can suffer sudde...

MRSA vaccine shows promise in mouse study

...rred to simply as "Staph," is common, found on the skin and in the noses of an estimated 30 percent of people worldwide. It is a frequent source of skin infections, which can usually be treated without antibiotics, but it can also cause serious surgical...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...light, then we could develop treatments for eye or skin diseases, even blood diseases, that can be activated by light. This challenge lies at the frontier of nanomedicine." The research got off the ground this month thanks to a $6 million, five-year grant from the National Institutes of Health (NIH), pa...

Free radical cell death switch identified

...MD, PhD, HMS associate professor of pathology. The skin of a bitten apple will brown because of its exposure to air, and in some ways that is a good metaphor for the damage that oxidative stress is causing to neurons and other types of cells over time. Humans and other organisms depend on oxygen to produ...

Embryos exposed in 3-D

...ged heart muscle following a heart attack, replace skin for burn victims, restore movement after a spinal cord injury and regenerate pancreatic tissue to produce insulin for people with diabetes. Regenerative medicine promises to improve health and quality of life by supporting and activating the body's ...

New technology enables faster, more efficient cell harvest: Cell therapy meeting study

...ged heart muscle following a heart attack, replace skin for burn victims, restore movement after a spinal cord injury and regenerate pancreatic tissue to produce insulin for people with diabetes. Regenerative medicine promises to improve health and quality of life by supporting and activating the body's ...

Unique soybean lines hold promise for producing allergy-free soybeans

... had allergic reactions, which range from harmless skin reactions and gastrointestinal irritation to more serious facial swelling, shortness of breath, difficulty swallowing and fainting. Avoiding soy products is becoming more difficult because of soy's use as fillers and components of many menu items. W...

The appearance of your hands can reveal your age, study finds

...n the hands can be highly effective in maintaining skin thickness and fullness. Non-surgical procedures like laser treatments and chemical peels can reduce age spots. Fat injections can be used to plump up hands and reduce the visibility of veins and laser ablation of unwanted hand veins can reduce vein...

Vaccine shown effective against chancroid

...e heme it needs to survive, the authors said. In skin biopsies of the immunized animals, the researchers found no viable chancroid bacteria. An HIV vaccine has been elusive in part because the virus constantly varies its surface molecules, making it an ever-changing target. But H. ducreyi, unlike other...

1 2 3 4 5 6 7 8 9 10