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Hair follicle size is mainly influenced by the number of cells and extracellular matrix volume, with cell number having a larger impact.

Hair loss in women is genetic, diagnosed by examination and biopsy, and treated with minoxidil, finasteride, or transplantation.

The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.

About 7% to 15% of Iranian women have polycystic ovary syndrome, depending on the criteria used to diagnose it.

Early diagnosis and treatment, using finasteride, minoxidil, or hair transplantation, improves hair loss outcomes.

Most women with excess hair growth have an underlying hormonal issue, often treated with medication and hair removal methods.

Hair loss needs more research for better treatments.

Inhibiting 5α-reductase can help reduce prostate cancer risk and improve treatment.

Hormones like estrogen, testosterone, progesterone, and prolactin play complex roles in female sexual function, with testosterone potentially improving sexual desire, arousal, and satisfaction. However, more research is needed to establish safe and effective hormone treatments for female sexual dysfunction.

Antiandrogens affect androgen-dependent body functions and are used for various medical conditions, with some risks like fetus feminization, but new forms like 17α-propylmesterolone show promise for acne without systemic effects.

The document concludes that hirsutism is the main sign for diagnosing hyperandrogenism, which requires a detailed patient history and physical exam.

PCOS starts in adolescence with hormonal issues, leading to adult health problems, and early treatment is crucial.

DHEA stimulates skin oil glands and could help postmenopausal women, with potential for acne and excessive hair growth treatments.

Hair loss in androgenetic alopecia is caused by genetic factors and androgen excess, and can be treated with combined therapies.

The document concludes that accurate measurement of serum androgens is crucial for diagnosing hyperandrogenism.

The document concludes that early recognition and treatment of PCOS in adolescents is crucial for managing symptoms and long-term health risks.

Spironolactone can reduce hair growth in women with hirsutism.

Hair loss can indicate underlying systemic diseases and addressing these can sometimes reverse the hair loss.

The document suggests that targeting the hormone DHT could be a more effective treatment for prostate cancer than targeting testosterone.

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

The gene for slick hair in Senepol cattle is located on chromosome 20 and may involve the SRD5A2 gene.

Spironolactone improved blood vessel function and cholesterol levels in non-obese women with PCOS.

Androgen hormones cause hair follicle scarring in hair loss, and finasteride helps reduce it.

In STSD patients, the body compensates for low androgen levels by increasing another enzyme's activity.

Men with Kennedy disease have less chance of hair loss.

Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.

A patient with a larger than usual genetic mutation had a broader range of symptoms for a muscle disease.

Hair disorders are caused by a complex mix of biology, genetics, hormones, and environmental factors, affecting hair growth and leading to conditions like alopecia.

The normal human prostate does not significantly affect blood DHT levels.

The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.