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Aging changes scalp cells, possibly affecting hair health in older women.

COVID-19 may cause hair loss, often after recovery, with androgenetic alopecia being the most common type.

Sweat gland development involves two unique skin cell programs and a temporary skin environment.

Type 2 cytokines IL-4 and IL-13 increase skin's vulnerability to Staphylococcus aureus, which could be important for treating atopic dermatitis.

Erosive pustular dermatosis of the scalp causes painful, scarring skin lesions on the scalp, mainly in elderly people with sun-damaged skin.

Biphasic alopecia often leads to permanent hair loss and its progression varies widely among individuals.

Certain drugs and supplements may contribute to hair loss in the frontal hairline in older women.

Bear oil promotes hair growth and increases hair density.

People with hair loss have smaller hair roots and less fat tissue.

Women without alopecia have more fat tissues and longer hair roots than those with alopecia.

Most vertebrates can regenerate skin, nails, and corneas, but only some can regenerate teeth and lenses.

Autoimmune and inflammatory processes are involved in both scarring and non-scarring types of hair loss.

Hair can regrow if the sebaceous gland is intact, even if the hair root is removed.

The combined treatment for hair loss is effective, easy to use, and has mild side effects.

Stem cell treatments show promise for hair loss but need more research.

Healthy scalp is crucial for hair growth and preventing hair loss.

Cell-based models help test if cosmetic ingredients really work for hair growth and skin health.

Cytokeratin 19 and cytokeratin 15 are key markers for monitoring the quality and self-renewing potential of engineered skin.

Too much keratin 16 in mice skin causes abnormal skin thickening and structure.

A rare skin condition was confirmed to be associated with a specific virus in a young girl.

A missing mK6irs1 gene causes hair loss in mice.

Wnt/ß-catenin signaling is crucial for regulating skin stem cells and hair growth, with the right levels and timing needed for proper function.

High levels of human keratin 16 in mice cause skin lesions and abnormal skin development.

Stem cells from elderly skin can become neurons, offering potential for brain therapy.

CD99 is highly present in certain skin cells and could help treat skin conditions.

Plant extracts may help treat hormone-related hair loss.

Trichilemmal cysts may form from hair follicle outer root sheath growth.

Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

Transplanting melanocyte stem cells from hair follicles can effectively treat vitiligo.

CCCA may be caused by both hair traction and an immune response.