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Hair and nail cells share similar proteins, indicating a common differentiation pathway.

Platelet-rich plasma shows promise for skin and hair treatments but needs more research and standardization.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

The Endocrine Society advised against routine testosterone therapy for women, citing a need for more research on long-term safety and a clear definition of androgen deficiency.

Polymeric nanoparticles show promise for treating skin diseases.

Mice lacking the PPARγ gene in their fat cells had almost no fat tissue, severe metabolic problems, and abnormal development of other fat-related tissues.

Lactate production is important for activating hair growth stem cells.

A gene called APCDD1, which controls hair growth, is found to be faulty in a type of hair loss called hereditary hypotrichosis simplex.

Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.

Essential oils in cosmetics can offer benefits but may cause allergies and should be used carefully.

Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.

Platelet-rich plasma with a new carrier significantly increases hair thickness without serious side effects.

Chitosan nanofiber scaffolds improve skin healing and are promising for wound treatment.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

Pig skin is a good substitute for human skin to measure drug absorption, but differences in skin structure and enzymes across species must be considered.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

Cathepsin L is essential for normal hair growth and development.

Microneedles help improve skin appearance and deliver skin treatments effectively, but safety concerns need more research and regulation.

PEVs improve minoxidil skin penetration, increasing hair growth.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Liposomes could improve how skin care products work but are costly and not very stable.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.

One minoxidil-sensitive potassium channel exists in human hair follicles.

MDP hydrogel heals wounds faster and better than other treatments in diabetic mice.

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

EGF and KGF signalling prevent hair follicle formation and promote skin cell development in mice.

Chitosan nanoparticles improve minoxidil delivery to hair follicles for better alopecia treatment.

Niosomes are promising for skin drug delivery, offering benefits like improved drug penetration and stability.

The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.