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Certain genes are more active in baby scalp cells and can help grow hair when added to adult mouse skin cells.

Beard and scalp hair cells have different gene expressions, which may affect beard growth characteristics.

Zinc chloride can cause human scalp cells to multiply and die.

Caffeic acid protects human scalp cells from UV damage.

A peptide called DPS-1 helps human scalp cells grow and stimulates hair growth in mice.

Lychee fruit polyphenol (Oligonol®) may regulate genes linked to cell growth and inflammation in human scalp cells.

Older women's scalp cells show changes that could contribute to hair thinning.

Using extracellular vesicles from stem cells can help hair grow by affecting scalp cells and hair follicles.

Researchers created early-stage hair-like structures from skin cells, showing how these cells can self-organize, but more is needed for complete hair growth.

Balding hair follicle cells are smaller, grow less well, and need more effort to culture than non-balding cells.

The "Punch Assay" can regenerate hair follicles efficiently in mice and has potential for human hair regeneration.

Implanted human scalp cells can regenerate hair-like structures in mice.

Hair follicle-like structures can form when specific hair cells are mixed and implanted in mice.

Skin spheroids with both outer and inner layers are key for regrowing skin patterns and hair.

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.

Androgens can both increase and decrease hair growth in different parts of the body.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.

The effects of estrogen on human scalp hair growth are unclear and need more research.

Hsc70 protein may influence hair growth by responding to androgens.

Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.

Aging causes changes in scalp cells that can negatively affect hair health.

T-cells in alopecia areata scalp show abnormal regulation, leading to less inflammation.

Both shampoos increased scalp germ numbers but did not change the overall microbial community composition.

Early-stage skin cells help regenerate hair follicles, with proteins SDF1, MMP3, biglycan, and LTBP1 playing key roles.

Botox can help prevent hair loss by blocking cell death in scalp cells.

Red deer only have androgen receptors in neck hair cells for mane growth during breeding season.

Androgens play a key role in hair growth and disorders like baldness and excessive hairiness.

Dermal papilla cells can help regrow hair and are promising for hair loss treatments.

A new strain of bacteria from the human skin can help prevent hair loss.