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Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.

Human prostate cells produce more WISP1/CCN4 when there's not enough oxygen.

Hair loss, prostate size, and urinary issues are related due to androgen effects.

Androgens increase muscle mass by promoting myoblast growth through ornithine decarboxylase.

The chapter explains the causes of excessive hair growth and masculinization in women and how to measure hormone levels related to these conditions.

Fat-derived stem cells and their secretions show promise for treating skin aging and hair loss.

Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Spironolactone is a safe and effective treatment for reducing excessive hair growth in women.

The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

Androgens promote beard growth but cause hair loss in androgenetic alopecia, with TGF-β1 as a potential treatment target.

The document concludes that targeting 5α-reductase, the androgen receptor, and hair growth genes, along with using compounds with anti-androgenic properties, could lead to more effective hair loss treatments.

Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.

Muscles can make their own androgens, which may help muscle growth.

A drug called cimetidine can help treat hair loss in women by blocking androgen receptors. However, it's not the first choice and needs more research.

The more lipophilic the progesterone derivative, the better it binds to androgen receptors and has antiandrogenic effects.

Excessive hair growth in women can be harmless or signal serious health issues, and treatment often includes medication and hair removal, with noticeable results after 3-6 months.

Testosterone therapy can modestly improve sexual function in menopausal women but should be used cautiously and is not recommended for routine measurement in sexual dysfunction or hirsutism.

Spironolactone works well for acne and hirsutism, isotretinoin is very effective for acne and may have antiandrogenic effects, and 5 alpha-reductase inhibitors should be considered antiandrogens.

Many potential alopecia treatments need more testing to confirm they promote acceptable hair growth with minimal side effects.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.

Male pattern baldness is caused by certain cells in hair follicles and could potentially be treated by targeting a specific growth factor, TGF-β1.

Antiandrogens can treat female hormonal conditions, but environmental ones may harm reproductive health.

No significant hormone differences found in postmenopausal women with androgenetic alopecia.

Effective treatments for excessive body hair in women include drugs that block androgens, sometimes combined with oral contraceptives.

The document concludes that treatments for female hair loss and excess body hair are available, but managing expectations is important.

Androgens regulate Sertoli cells and affect fertility through specific receptors and coregulators.

Testosterone, progesterone, and levonorgestrel change enzyme levels related to fat production in hamster skin, which could affect skin oil and acne.

Stauntonia hexaphylla extract can help treat hair loss by blocking certain hormones.

Finasteride reduces AML cell growth by inhibiting androgen receptors.

These drugs cause hair growth without affecting testosterone or adrenal hormones.