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Sebum production varies by individual and is influenced by age, gender, and hormones, affecting skin and hair health.

β-catenin in the dermal papilla is crucial for normal hair growth and repair.

Hair follicle dermal stem cells are key for regenerating parts of the hair follicle and determining hair type.

Early development of hair, teeth, and glands involves specific signaling pathways and cellular interactions.

Human hair follicle stem cells can turn into multiple cell types but lose some of this ability after being grown in the lab for a long time.

Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.

Reflectance confocal microscopy is useful for diagnosing scalp melanomas, which have features similar to those on the trunk.

A new genetic change in the keratin 10 gene caused a skin condition called ichthyosis hystrix in a father and his daughter.

Understanding how acne develops in different diseases could lead to new treatments.

FGF5 gene mutations cause unusually long eyelashes by affecting hair growth regulation.

A 12-year-old girl was misdiagnosed with alopecia areata but actually had a nevus sebaceus with a genetic mutation.

Men with baldness have higher levels of specific proteins, suggesting local hormone production may play a role in hair loss.

Women with AGA have less hair on midscalp, more thin and non-growing hair.

The girl's unexpected pubic hair growth led to a diagnosis different from complete androgen insensitivity syndrome.

Scalp dermatoscopy helps diagnose and monitor hair loss severity.

Atorvastatin reversed memory problems caused by cancer drug trastuzumab and improved its cancer-fighting abilities without causing hair loss.

Hair follicle sampling is a feasible method to measure FMRP and FMR1 mRNA levels in children.

The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.

Women with thinning hair have thinner hair strands than women without hair loss.

Insulin resistance contributes to hormone imbalances in many women with polycystic ovary syndrome.

A 32-year-old man with early graying hair shows a unique pattern, suggesting more research is needed on why hair grays early.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Researchers found a white halo around hair in most patients with a specific type of hair loss, which helps in early diagnosis and treatment.

Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.

A 19-year-old male with delayed puberty was successfully treated for a condition that prevents normal hormone production.

Eating a balanced diet with the right vitamins and minerals is important for healthy hair, but too many supplements can be harmful.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.

Alopecia areata is a type of hair loss that can lead to complete baldness, often associated with other autoimmune conditions, and half of the cases may see hair return within a year.

Laser treatment increases hair density and thickness safely in women with hair loss.