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Tag: "skin" at biology news

Scratch no more: Gene for itch sensation discovered

...ere pain and itch signals are transmitted from the skin to the brain. The researchers, led by Zhou-Feng Ch...ching is a widespread problem. It can be caused by skin disorders like eczema, or it can stem from a deeper problem such as kidney failure or liver disease....

Innovative smallpox vaccine research study to be conducted at Case Medical Center

...h as patients with HIV or individuals with certain skin conditions such as eczema,” says Robert A. Salata, M.D., chief of the Division of Infectious Diseases at Case Western Reserve University School of Medicine and UHCMC. The new vaccine, IMVAMUNE®, is different from Dryvax® in that it contains a mor...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...quito bite, the mosquito injects the parasite into skin or blood, which then travels to the liver within minutes, grows and divides there, and then ruptures liver cells, spewing many new parasites into the blood. A fever results from the infection, and this is followed by repeated cycles of mounting paras...

New bacterium discovered -- related to cause of trench fever

...painful lesions and tumors of blood vessels on the skin of immunocompromised patients. But when I saw this patient, this type of infection had never been seen at UCSF, and the bacterium causing the infection was unknown.” Koehler’s group went on to discover that two different Bartonella species can c...

Newly found sensing system enables certain bacteria to resist human immune defenses

...ria—such as those that can lead to food poisoning, skin disorders and toxic shock—avoid being killed by AMPs. AMPs are made by virtually all groups of organisms, including amphibians, insects, several invertebrates and mammals, including humans. “Gram-positive bacteria are major threats to human health...

Brightening prospects of using fluorescent nanotubes in medical applications

...n a part of the spectrum – the near infrared where skin and other tissue is transparent – that allows the nanotube light to stand out. Nanotubes are made entirely from graphitic carbon, which is non-toxic and, at least so far, experiments that have been done indicate that they do not damage living cel...

Sun exposure early in life linked to specific skin cancer gene mutation

...t for learning more about how to prevent and treat skin cancer," said Dr. Nancy Thomas, associate professor of dermatology in the UNC School of Medicine, a member of the UNC Lineberger Comprehensive Cancer Center and lead author of the study. This finding is expected to strengthen current recommendations ...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...increase in patients and a 62 per cent increase in skin cancer samples processed by pathology laboratories...The figures also showed that the three most common skin cancers - basal cell carcinoma, squamous cell carcinoma and malignant melanoma - accounted for 27 pe...

Now, self-healing materials can mimic human skin, healing again and again

...rchers at the University of Illinois, mimics human skin by healing itself time after time. The new materia...ry systems. “In the same manner that a cut in the skin triggers blood flow to promote healing, a crack in these new materials will trigger the flow of heal...

Clot-dissolving agent may be beneficial in treatment of severe frostbite

...ect tPA helps reduce the injury caused when frozen skin is warmed again. Inflammation during thawing typically stimulates clotting that blocks small blood vessels, leading to cell death. Because tPA reverses this clotting, blood flow is restored before permanent damage is done. “Based on the dramatic i...

Putting feelings into words produces therapeutic effects in the brain

... in reducing a variety of chronic pain conditions, skin disease, stress-related health conditions and a variety of other ailments, he said. Creswell and his UCLA colleagues — Lieberman, Eisenberger and Way — found that during the labeling of emotions, the right ventrolateral prefrontal cortex was activat...

New research shows sharks use their noses and bodies to locate smells

...t their noses to locate prey; they also need their skin – specifically a location called the lateral line. The lateral line is an organ used by all fish to detect, with exquisite sensitivity, movement and vibration in the surrounding water. According to the research team, this is similar to how humans can...

Early exposure to indoor fungus molecules may protect infants against future allergies

...d allergy development was monitored through annual skin prick tests. Scientists say early-life exposure to common microbial components—like bacterial endotoxins and fungal glucans—can stimulate the body’s immune system to produce infection- and allergy-fighting substances. Because of this, Iossifova sa...

Catching cancer's spread by watching hemoglobin

...e diseases such as melanoma, the deadliest form of skin cancer. The technique can image blood vessels up t...w the surface. Looking at blood vessels just below skin growths would be very useful for distinguishing between malignant and benign skin tumors, and would ...

How to look at dinosaur tracks

...out foot morphology, soft tissue distribution, and skin texture,?write Jesper Milàn (Geological Institute, University of Copenhagen) and David B. Loope (Department of Geosciences, University of Nebraska, Lincoln). “However, in most instances, the tracks are less than perfectly preserved, and sometimes the...

Egyptians, not Greeks were true fathers of medicine

...edies while aloes forms a basis to soothe and heal skin conditions." Fellow researcher Dr Ryan Metcalfe is now developing genetic techniques to investigate the medicinal plants of ancient Egypt. He has designed his research to determine which modern species the ancient botanical samples are most relate...

Warts vaccine -- 1 of many in pipeline

...nt infections. Genital warts are transmitted by skin contact and the 2003 Australian Study of Sex and Relationships of 20,000 adults revealed four percent of people had had visible genital warts. Dr Jardine said men and women with genital warts who would like to take part in the trial could call 324...

Researchers publish first marsupial genome sequence

...olet radiation alone can cause melanoma, a type of skin cancer that also strikes humans exposed to too much of the sun's ultraviolet rays. Having the sequence of the opossum genome will give researchers the ability to learn more about the molecular basis of melanoma and its progression, as well as explore...

Scientists develope a new model of artificial canine skin

...faithfully reproduces the characteristics of dog’s skin and which will allow, therefore, the carrying out of various lines of research related to skin biology and pathology without the need to use live animals. The basic structure of skin consists of...

First demonstration of new hair follicle generation in an animal model

...ould lead to novel treatments for hair loss, other skin and hair disorders, and wounds. “We showed tha... wound healing triggered an embryonic state in the skin which made it receptive to receiving instructions from wnt proteins,?says senior author George Cotsa...

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