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Human skin can make serotonin and melatonin.

Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

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

The guide explains how to study human and mouse sebaceous glands using various staining and imaging techniques, and emphasizes the need for standardized assessment methods.

Certain gene variants may contribute to high androgen levels in women with polycystic ovary syndrome.

Thyrotropin-Releasing Hormone helps heal wounds in frog and human skin.

Kids with alopecia areata may experience more stress but not necessarily feel more anxious or depressed than others.

White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.

Finasteride treatment changes brain steroid levels and receptors, affecting brain function even after stopping treatment.

Finasteride affects prostate weights and pituitary activity differently with age.

Ozone therapy might improve cancer treatment and reduce its side effects.

Merkel cells may have roles in sensing magnetic fields, creating fingerprints, Reiki energy healing, passing on environmental information to offspring, and influencing hair shape.

Hoxc13 is linked to seasonal hair growth in Cashmere goats and is affected by melatonin.

The guide explains how to study human skin fat cells and their tissue, aiming to improve research and medical treatments.

Reflectance confocal microscopy can tell apart white dots on the scalp as either sweat gland ducts or hair follicle openings.

Some skin problems can be signs of diabetes or other metabolic diseases and recognizing them can help diagnose and treat these diseases early.

Dopamine stops hair growth and pigment production in human scalp hair follicles.

The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.

The document concludes that diagnosing PCOS in teenagers is difficult and should focus on specific hormone levels and menstrual irregularities, while also considering treatment for symptoms and related health issues.

In vivo lineage labelling is better than in vitro methods for identifying and understanding stem cells.

Melatonin stimulates the skin components of ram's scrotum during their non-breeding season.

Low-dose anti-androgen drugs and certain drug combinations are effective for hirsutism, and insulin sensitizers show promise, especially for those with polycystic ovarian syndrome.

The skin acts like an endocrine organ, making hormones that affect skin diseases and respond to stress.

A woman with anorexia nervosa improved after treatment for pellagra, reminding doctors to check for this deficiency in patients with eating disorders.

Tianeptine, an antidepressant, may prevent stress-induced hair loss in mice.

Some thymic peptides can increase human hair growth, while others may inhibit it.

The document reports three sisters with Woodhouse-Sakati syndrome showing typical symptoms and unusual gynecological anomalies.

The Hair India 2010 conference introduced a new hair loss classification and highlighted advanced diagnostic techniques in trichology.

PCOS is linked to a higher risk of endometrial cancer but not ovarian or breast cancer, and more research is needed on its role in cancer development and treatment effects.

High levels of cortisol in hair show long-term stress which can lower fertility in animals.