Diseases, Conditions, Syndromes

Ultraviolet light has bright future in fight against COVID-19

A particular type of ultraviolet light known as far-UVC could be safely used for air disinfection in public places without harming people, according to new research carried out jointly at the University of St Andrews and ...

Medical research

Researchers identify mechanisms that make skin a protective barrier

A Mount Sinai research team has identified one of the mechanisms that establish the skin as a protective barrier, a breakthrough that is critical to understanding and treating common skin conditions including eczema and psoriasis, ...

Surgery

Stem cell treatments 'go deep' to regenerate sun-damaged skin

For a while now, some plastic surgeons have been using stem cells to treat aging, sun-damaged skin. But while they've been getting good results, it's been unclear exactly how these treatments—using adult stem cells harvested ...

Diseases, Conditions, Syndromes

Tips for skin protection with excessive hand-washing, masking

Dear Mayo Clinic: Frequent hand-washing and cleaning during the COVID-19 pandemic has made my hands so dry that my skin in cracking. With recommendations for everyone to now wear a face mask while in public, I'm concerned ...

Oncology & Cancer

The importance of a skin cancer check

Q: I turn 50 this year and at my annual physical, my doctor suggested I visit a dermatologist to check for melanoma. I have never had any suspicious moles or spots on my skin, so I've not had a skin check with a dermatologist ...

Diseases, Conditions, Syndromes

'COVID toes,' other rashes latest possible rare virus signs

Skin doctors suddenly are looking at a lot of toes—whether by emailed picture or video visit—as concern grows that for some people, a sign of COVID-19 may pop up in an unusual spot.

Medical research

Study probes efficacy of APOSEC for allergic skin lesions

APOSEC is a biologic wound-healing agent developed by thoracic surgeon Hendrik Jan Ankersmit from MedUni Vienna. Together with dermatological basic researcher Michael Mildner, also from MedUni Vienna, he has now also investigated ...

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Skin

The skin is the outer covering of the body. In humans, it is the largest organ of the integumentary system made up of multiple layers of mesodermal tissues, and guards the underlying muscles, bones, ligaments and internal organs. Skin of a different nature exists in amphibians, reptiles, birds. Human skin is not unlike that of most other mammals except that it is not protected by a pelt and appears hairless though in fact nearly all human skin is covered with hair follicles. The adjective cutaneous literally means "of the skin" (from Latin cutis, skin).

Because it interfaces with the environment, skin plays a key role in protecting (the body) against pathogens and excessive water loss. Its other functions are insulation, temperature regulation, sensation, synthesis of vitamin D, and the protection of vitamin B folates. Severely damaged skin will try to heal by forming scar tissue. This is often discolored and depigmented.

In humans, skin pigmentation varies among populations, and skin type can range from dry to oily. Such skin variety provides a rich and diverse habit for bacteria which number roughly a 1000 species from 19 phyla.

This text uses material from Wikipedia, licensed under CC BY-SA