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Scalp laxity, elasticity, and glidability are important in hair transplants and can predict scar width at the donor site.

Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

High ferritin levels might be linked to chronic hair loss.

Mesotherapy is more effective than topical spray for female hair loss treatment.

Lipase H is important for hair follicle function and shaping hair fibers.

Dihydrotestosterone gel before hypospadias surgery led to less scarring but raised concerns about potential psychological effects and skin changes.

Transdermal fluoxetine is less effective in cats, clomipramine may help with feline alopecia, younger dogs often start fights, dietary changes can reduce cribbing in horses, negative aggression tests in shelter dogs predict good behavior, many older cats show cognitive issues, and fluoxetine or paroxetine can improve canine anxiety.

Male androgenetic alopecia involves hair follicle miniaturization due to DHT, with potential treatments using inhibitors and blockers.

Finasteride is not expected to be effective for treating Acne vulgaris.

Hair transplantation between identical twins can successfully treat severe, nonprogressive hair loss due to follicular aplasia.

The article concludes that products can affect the body without being drugs as long as they don't claim to treat or prevent diseases, except for cosmetic sunscreens.

Acetate helps reduce depression in rats with PCOS by lowering specific gene expression and DNA changes in the brain.

Using Calcipotriol with Clobetasol is more effective for treating Alopecia Areata than using Clobetasol alone.

Repealing tampon taxes helps low-income people the most by making menstrual products cheaper.

Irwin Freedberg made significant contributions to understanding keratin proteins in dermatology.

Keratin 18 helps diagnose and predict cancer progression and affects cancer growth and spread.

Alcohol may slightly increase the risk of hair loss, but the link is uncertain.

PRP did not significantly improve hair restoration results but improved scar tissue quality.

Combining TRA and latanoprost is most effective for treating localized alopecia areata.

Tamsulosin increases the risk of floppy iris during eye surgery.

COVID-19-related hair loss may have unique features compared to hair loss from other causes.

Certain genes may influence hair loss differently in men and women.

Low vitamin D3 and ferritin levels may cause hair loss in pregnant women.

Certain immune cells are linked to non-scarring hair loss, suggesting potential for immune-targeted treatments.

Higher cortisol levels are linked to poor coping, while higher DHEA levels are linked to job confidence.

Absence of skin rash and low complement C3 levels increase the risk of lupus nephritis.

SFRP2 and PTGDS may be key factors in female hair loss.

Scalp cooling can effectively prevent hair loss during chemotherapy, improving patients' quality of life.