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Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.

Hair microscopy is useful for diagnosing hair disorders, but clear definitions are needed for accurate genetic analysis.

Crossbreeding certain European cattle breeds may cause hair and physical issues in cattle.

A new non-invasive method can analyze skin mRNA to understand skin diseases better.

Some plant-based chemicals may help with hair growth, but more research is needed to confirm their effectiveness.

Scalp cooling to prevent hair loss from chemotherapy works for some but not all, and studying hair damage markers could improve prevention and treatment.

Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.

Eyelash curvature is linked to the thickness of the cuticle layer at the root.

Researchers created immortal human skin cells with constant testosterone receptor activity to study hair loss and test treatments.

Early diagnosis and treatment, like topical minoxidil, can prevent hair loss in children.

Modified stem cells that overexpress a specific protein can improve hair growth and reduce hair abnormalities in mice.

Androgens can both increase body hair and cause scalp hair loss.

Mutations in Plcd1 and Plcd3 together cause severe hair loss in mice.

Male pattern baldness may be caused by factors like poor blood circulation, scalp tension, stress, and hormonal imbalances, but the exact causes are still unclear.

The study developed a method to analyze ancient hair proteins using very small samples.

Over half of the children had abnormal hair under a microscope, with many having genetic hair conditions.

Hair follicles and deer antlers regenerate similarly through stem cells and are influenced by hormones and growth factors.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

Hyperadrenocorticism in ferrets is linked to neutering and indoor housing, and is best treated with surgery and a deslorelin implant.

The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.

Psychotropic drugs can cause hair loss or excessive hair growth.

A young cat had a rare hair condition with twisted hair shafts but stayed healthy.

The engineered skin substitute helped grow skin with hair on mice.

Bald thigh syndrome in sighthounds is caused by structural defects in hair shafts due to downregulated genes and proteins.

Plasma jet treatments can clean hair and might replace peroxide for hair care.

Ellis van Creveld syndrome, a rare genetic disorder, can cause unexpected abnormalities in various body organs, requiring thorough patient evaluations.

Hair stiffness is higher when it has more para-like cortical cells.

Dermoscopy shows that diffuse alopecia areata progresses through specific hair growth stages.

The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.