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Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.

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

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

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.

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

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

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

Testosterone metabolism in balding scalp cells may not be the main cause of hair loss.

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

Minoxidil boosts enzymes that help hair growth.

Protein analysis shows aging changes in scalp cell types from women.

SFRP2 boosts Wnt3a/β-catenin signals in hair growth cells, with stronger effects in beard cells than scalp cells.

Dexamethasone increases androgen receptor activity in scalp cells, which might explain stress-related hair loss.

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

Caffeic acid protects human scalp cells from UV damage.

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

Aging changes female scalp cells, likely affecting hair health.

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

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

Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.

Cepharanthine may help hair growth by increasing IGF-I in scalp cells.

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

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

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

The research found genes that may protect certain scalp cells from hair loss.

Green tea component EGCG may help prevent hair loss by changing microRNA levels in certain scalp cells.

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

Vitamin B3 may help prevent hair loss and promote hair growth by protecting scalp cells from stress and reducing hair growth-blocking proteins.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

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.