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The document reviews key historical figures and discoveries in dermatology.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

The botanical treatment for hair loss shows promise, especially for children.

The document concludes that diagnosing hair loss requires evaluating multiple histological features, as no single feature is definitive on its own.

A young woman with kidney failure had hair loss due to a common hormonal disorder, which improved with hormone therapy.

Doctors recommend postoperative radiation for male breast cancer, advise against testosterone for vasomotor symptoms post-adrenalectomy, suggest non-hormonal treatments for atrophic vaginitis after mastectomy, note no specific treatment for anticoagulant-induced hair loss, and call for more research on silicosis from silicon carbide exposure.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

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

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.

EGF makes hair follicles grow longer but stops hair production.

Minoxidil promotes hair growth but stops working when discontinued.

Lufenuron effectively and quickly treats fungal infections in dogs and cats without side effects.

Minoxidil effectively regrows hair in male pattern baldness.

Laser treatment can stimulate hair growth for male pattern hair loss.

Mice can grow new hair follicles after skin wounds through a process not involving existing hair stem cells, but requiring more research to understand fully.

Using a gene therapy with the Sonic Hedgehog gene helps mice regrow hair faster after losing it from chemotherapy.

Skin and hair can regenerate after injury due to changes in gene activity, with potential links to how cancer spreads. Future research should focus on how new hair follicles form and the processes that trigger their creation.

BMP6 and Wnt10b control whether hair follicles are resting or growing.

Nd:YAG laser can reduce hair with multiple treatments, but permanent removal isn't guaranteed.

Minoxidil may cause heart changes; use caution and monitor patients with heart conditions.

Llamas often have skin issues like mange, bacterial infections, and allergies, with some treatable by zinc.

Endoxan often causes hair loss, which usually starts in the third week of treatment.

A man experienced hair loss from radiotherapy, which can be temporary or permanent depending on radiation dose, with potential treatments available.

New LPP subtype affects vellus hairs, mimics AGA, and needs biopsy for diagnosis.

Understanding hair follicle structure is key for treating hair disorders and could help develop new treatments.

The document concludes that hair loss in cats is caused by various factors, including allergies, mites, infections, and hormonal issues, with treatments varying accordingly.

An elderly woman's swollen, painful foot was found to be caused by a rare type of bone lymphoma, which improved with radiation treatment.