Neuroscience

Scientists develop 'mini-brain' model of human prion disease

National Institutes of Health scientists have used human skin cells to create what they believe is the first cerebral organoid system, or "mini-brain," for studying sporadic Creutzfeldt-Jakob disease (CJD). CJD is a fatal ...

Medical research

Scientists grow precursors for human pigment cells

Our hair, skin and eyes are colored by a pigment called melanin, which is produced by pigment cells called melanocytes. Scientists have used stem cell technology to successfully create melanocyte precursor cells. These cells ...

Pediatrics

Robot an effective pain management tool for premature babies

Researchers at the University of British Columbia, BC Children's Hospital, the British Columbia Institute of Technology, and BC Women's Hospital + Health Centre have designed a therapeutic robot that simulates human skin-to-skin ...

Diseases, Conditions, Syndromes

New treatment in the works for disfiguring skin disease, vitiligo

In many parts of the world there is great shame and stigma tied to vitiligo, an autoimmune disease of the skin that causes disfiguring white spots, which can appear anywhere on the body. In some societies, individuals with ...

Diseases, Conditions, Syndromes

How does the body respond to diffuse cutaneous leishmaniasis?

In diffuse cutaneous leishmanisis (DCL), a rare form of leishmaniasis, parasites grow uncontrolled in skin lesions across the body. For the first time, researchers reporting in PLOS Neglected Tropical Diseases have now profiled ...

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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