News tagged with human skin

Related topics: skin , stem cells , cells , skin cells

Sweat-eating bacteria may improve skin health

Bacteria that metabolize ammonia, a major component of sweat, may improve skin health and some day could be used for the treatment of skin disorders, such as acne or chronic wounds. In a study conducted by AOBiome LLC, human ...

Sep 29, 2014
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A genetic analysis of skin development

(Medical Xpress)—Researchers report the first comprehensive analysis of genes that affect a single tissue. Genes don't act in isolation and it is only by studying the effects of many genes that scientists ...

May 20, 2014
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New target for psoriasis treatment discovered

Researchers at King's College London have identified a new gene (PIM1), which could be an effective target for innovative treatments and therapies for the human autoimmune disease, psoriasis.

Feb 12, 2014
popularity 4.4 / 5 (12) | comments 1 | with audio podcast

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