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Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.

A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.

The project created a standardized system for classifying skin lesions in lab rats and mice.

Stem cells, especially from fat tissue and Wharton's jelly, can potentially regenerate hair follicles and treat hair loss, but more research is needed to perfect the treatment.

PAI-2 helps in the maturation and protection of hair and nail cells.

Odontogenic keratocysts are caused by abnormal Hedgehog signaling and can lead to tooth and bone issues.

Human sweat glands have a type of stem cell that can grow well and turn into different cell types.

Acne is a temporary skin imbalance during puberty that often resolves on its own.

Chemotherapy-induced hair loss is partly due to decreased laminin-511 and increased laminin-332.

Different types of cell death affect skin health and inflammation, and understanding them could improve treatments for skin diseases.

Alopecia areata is a chronic condition causing hair loss, with new treatments targeting the immune system showing promise.

Skin-derived stem cells grow faster and are easier to obtain than hair follicle stem cells, but both can become various cell types.

Keratin-associated proteins are part of the developing hair fiber cuticle.

UV exposure reduces Lgr6+ stem cells in mouse skin and they don't significantly contribute to skin cancer development.

Autophagy prevents early aging and maintains lipid and pheromone balance in mouse glands.

The document discusses male and female pattern hair loss, its diagnosis methods, FDA-approved treatments like finasteride and minoxidil, their side effects, and the role of lifestyle changes.

Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.

Scalp melanoma, a deadly skin cancer, is often found late due to its hard-to-see location, especially in older men. Early detection, possible treatments, and the role of hairdressers in spotting it early are discussed. More research is needed to improve detection and treatment.

Skin cancer often starts from Lgr5+ progenitor cells.

The chapter explains common scalp conditions, including infections, infestations, and tumors.

Hyperadrenocorticism in ferrets is linked to neutering and indoor housing, and is best treated with surgery and a deslorelin implant.

Markers help differentiate between apocrine and eccrine sweat glands to identify sweat gland tumors.

Steven Kossard classified lymphocyte-related hair loss into four patterns, each linked to different types of baldness.

Half of people with Alopecia Areata may see hair regrowth within a year without treatment, but recovery is unpredictable.

Hair can regrow after certain stem cells are lost because other stem cells can take over their role.

The document concludes that early diagnosis and treatment are crucial for managing rare hair loss disorders and that more research is needed to improve treatment strategies.

A 72-year-old man with sudden taste issues and hair growth was diagnosed with a severe stomach cancer and died within 5 months.

Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

Pectin biosynthesis is essential for the growth of cotton fibers and Arabidopsis root hairs.