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Alopecia areata is an autoimmune condition causing hair loss due to the immune system attacking hair follicles, often influenced by genetics and stress.

Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Early development of hair, teeth, and glands involves specific signaling pathways and cellular interactions.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.

Sonic hedgehog signaling is crucial for hair growth and maintaining hair follicle identity.

Adam10 enzyme is crucial for healthy skin and proper Notch signaling.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Skin grafts on mice can cause an immune response leading to hair loss, useful for studying human hair loss conditions.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

Liposomes and niosomes improve finasteride delivery for hair loss treatment.

Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.

Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

Understanding the mouse hair cycle is crucial for cancer research.

Skin-derived precursors in hair follicles come from different origins but function similarly.

Fullerenes show potential in skin care but need more safety research.

A genetic change in the EDAR gene causes the unique hair traits found in East Asians.

Mutant CDP/Cux protein causes hair defects and reduced male fertility in mice.

A WNT10A gene mutation leads to ectodermal dysplasia by disrupting cell growth and differentiation.

BMP2 and BMP7 have opposite roles in feather formation.

Blocking β-catenin in skin cells improves hair growth during wound healing.

Mutant mice help researchers understand hair growth and related genetic factors.

Mammals might fail to regenerate not because they lack the right cells, but because of how cells respond to their surroundings, and changing this environment could enhance regeneration.