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Hair growth can be stimulated by combining certain skin cells, which can rejuvenate old cells and cause them to specialize in hair follicle creation.

Caffeine affects hair growth and health differently in men and women.

Products should be called 'sperm-safe' only after thorough, well-designed tests.

EGF and FGF boost hair cell growth, hydrocortisone slows it, and minoxidil doesn't affect it.

Steroid sex hormones activate matriptase in prostate cancer cells but not in breast cancer cells.

Teloptosis is a key point in hair loss that could help in creating prevention-focused hair care strategies.

Pitx2 helps outer root sheath cells differentiate but can't start hair growth on its own.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

Alopecia areata patients have more Propionibacterium acnes and less Staphylococcus epidermidis on their scalps.

Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.

Scientists found cells in hair that are key for growth and color.

All three shampoos reduced dandruff and hair loss, but ketoconazole and piroctone olamine also made hair thicker.

Dutasteride treatment in men with mild to moderate COVID-19 reduced viral shedding, inflammation, and recovery time without serious side effects.

Healthy women tend to lose more hair in July and April, and the least in February.

Hair loss in mice starts with immune cells damaging hair roots before it becomes visible.

Toxic shock syndrome is caused by a complex interaction of bacterial toxins and the immune system, and understanding this can help improve diagnosis and treatment.

Trichoscopy is a useful tool for diagnosing hair disorders without pulling out hair.

Metformin should be used for PCOS mainly in those with glucose intolerance, and has limited benefits for infertility or hirsutism.

Using a hair dryer at 15 cm with continuous motion causes less damage than natural drying.

Vitamin C derivative helps hair grow longer by making cells produce a growth factor through a specific cellular pathway.

Runx3 helps determine hair shape.

Doctors should know how to diagnose and treat PCOS, which often involves checking for high male hormone levels and using medications to manage symptoms.

Large prostate links to more hair loss, but age of onset doesn't affect it.

The hair shedding scale accurately identifies abnormal hair shedding in women with long hair, with grades 5 and 6 indicating excessive shedding.

Most women preferred the 1% pyrithione zinc shampoo for better hair smoothness and less frizz while controlling dandruff.

Stress in mice delays hair growth and treatments blocking substance P can partly reverse this effect.

The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.

TGase 3 helps build hair structure by forming strong bonds between proteins.

Hair shape is determined by genetic, molecular, and cellular factors.

Heat shock protein 27 is more present in the active growth phase of human scalp hair follicles.