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Estrogen Receptor ß (ERß) is the main hormone controller in human skin and hair follicles, not Estrogen Receptor α (ERα) or the Androgen Receptor (AR).

African Americans have less hair density than whites.

Obesity is linked to various skin problems and may increase the risk of skin cancer.

The human type II 5α-reductase gene, linked to certain male health conditions, has a specific structure and low similarity to other related genes.

Scientists turned rat thymus cells into stem cells that can help repair skin and hair.

High-dose dutasteride reduces PMDD symptoms by stabilizing neurosteroid levels.

Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.

The Protein-Sparing Modified Fast is effective for rapid weight loss and maintaining it, but requires medical supervision and can have side effects.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

One minoxidil-sensitive potassium channel exists in human hair follicles.

5α-reductase is essential for male sexual development and its inhibitors have potential in treating various conditions related to hormone action.

The sebaceous gland has more roles than just producing sebum and contributing to acne, and new research could lead to better skin disease treatments.

Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.

Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.

Fatty acid transport protein 4 is essential for skin and hair development.

Hair loss in women is common, starts in late 20s, and affects 30% of women over 50.

Genetics and hormones play a role in male and female hair loss, but more research is needed to fully understand it.

Trichoscopy is a useful non-invasive method for diagnosing different hair loss conditions.

Mouse skin can produce and process serotonin, with variations depending on hair cycle, body location, and mouse strain.

Platelet-rich plasma may have some benefits in dermatology, but there's not enough evidence to widely recommend its use.

Amenorrhea is relatively rare and initial testing should check FSH, TSH, and prolactin levels.

Researchers developed a quick and easy way to get and grow cells from the base of human hair follicles.

Human skin cells produce proenkephalin, which changes with environmental factors and skin diseases.

The document concludes that proper diagnosis and FDA-approved treatments for different types of hair loss exist, but treatments for severe cases often fail and future improvements may focus on hair follicle stem cells.

The human type II 5α-reductase gene has a specific structure important for understanding certain medical conditions.

Beta-sitosterol has potential health benefits but needs more research to fully understand its effects and improve its use in treatments.

Toxic epidermal necrolysis is a severe skin condition often caused by drugs, with complex treatment and a high risk of death, but survivors usually heal without scars.

5-alpha reductase inhibitors can cause sexual side effects like erectile dysfunction and reduced sexual desire, sometimes lasting after stopping the drug.

Using both vertical and transverse sections for alopecia biopsies improves diagnosis without extra cost.

Topical drugs and near-infrared light therapy show potential for treating alopecia.