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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.

Scientists created a lab-grown hair follicle model that behaves like real hair and could improve hair loss treatment research.

Alopecia areata is a hair loss condition caused by immune factors and can be treated with JAK inhibitors.

Dermal EZH2 controls skin cell growth and differentiation in mice.

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

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

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Hormonal interactions, especially involving DHT and estrogen, play a key role in BPH development and treatment.

Cannabinoids may help treat various skin conditions.

Low oxygen conditions increase the hair-growing effects of substances from fat-derived stem cells by boosting growth factor release.

Wnt signaling is crucial for skin development and hair growth.

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

Different signals work together to change gene activity and guide hair follicle stem cells to become specific cell types.

Keratin 15 is not a reliable sole marker for identifying epidermal stem cells because it's found in various cell types.

The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.

Msx2 and Foxn1 are both crucial for hair growth and health.

Hair follicle stem cells are a promising source for tissue repair and treating skin or hair diseases.

Smad-4 and Smad-7 are key in hair follicle development, with other Smads being less important.

Red Ginseng Extract may help human hair grow by activating growth pathways and blocking negative effects of certain hormones.

Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.

Proper control of β-catenin activity is crucial for development and preventing diseases like cancer.

Smad4 is important for healthy hair follicles because it helps produce a protein needed for hair to stick together and grow.

Cashmere and milk goats have different hair growth cycles and gene expressions, which could help improve wool production.

DNA methylation and long non-coding RNAs are key in controlling hair growth in Cashmere goats.

Gene network oscillations inside hair stem cells are key for hair growth regulation and could help treat hair loss.

Baicalin helps hair grow by boosting certain cell activities and speeding up hair cycle in mice.

Keratinocytes show more TGF-β system activity and collagen production as they age, which might affect wound scarring.

Hormones and genes affect hair growth and male baldness.

Genomic approach finds new possible treatments for hair loss.

Melatonin helps goat hair stem cells grow and maintain their ability to become different cell types.