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Researchers made a mouse model with curly hair and hair loss by editing a gene.

Stem cells control their future role by changing ERK signal timing, affecting tissue regeneration and cancer.

Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

Genetic differences between young and old Tan sheep explain why their fleece changes from curly to straight as they age.

Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.

Protein composition greatly affects the function of keratin biomaterials.

Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

The document concludes that stopping shaving or removing affected hair can alleviate Pseudofolliculitis barbae (PFB).

Different combinations of human hair keratins affect how hair fibers form.

Most hair loss in children is caused by a few common conditions and is easy to diagnose, but rare types require careful evaluation.

Sheep with chronic Sarcoptes scabiei dermatitis have altered keratin expression in their skin.

The analysis of a large pilomatricoma revealed five distinct areas with different gene activity related to hair growth and tumor development.

Cornification is the process where living skin cells die to create a protective barrier, and problems with it can cause skin diseases.

Exosomes from dermal papilla cells help hair growth by making hair follicle stem cells multiply and change.

Blocking IL-12/IL-23p40 helped reverse severe hair loss in patients.

GRHL3 is important for controlling gene activity in skin cells during different stages of their development.

Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.

Mice are useful for researching human hair loss and testing treatments, despite some differences between species.

The document explains how to identify different hair problems using a microscope.

Telomere damage affects skin and hair follicle stem cells by messing up important growth signals.

The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.

The Notch signaling pathway helps in mouse hair development through a noncanonical mechanism that does not rely on RBPj or transcription.

P-cadherin is important for hair growth and health, and its problems can cause hair and skin disorders.

The genes KRT25 and SP6 affect curly hair in horses, with KRT25 also causing hair loss. If both genes are mutated, the horse gets curly hair and hair loss. KRT25 can hide the effect of SP6.

A mix of tocopherol acetate and L-menthol helps grow hair better than using them separately or using minoxidil.

The review highlights the importance of stem cells in hair health and suggests new treatment strategies for hair loss conditions.

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Scientists created three types of structures to help regrow hair follicles, and all showed promising results for hair regeneration.