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A woman's severe male-like symptoms were caused by a rare, benign tumor in her ovary that produced male hormones.

Oestrogens are key for bone growth during puberty in both boys and girls.

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.

New genes and pathways are important for testosterone production and male sexual development.

Antiandrogens are effective for conditions like prostate cancer and skin issues, but more research is needed to confirm their benefits and minimize side effects.

Estrogens are key for bone growth spurts in both boys and girls and affect growth into adulthood.

Resveratrol helps prevent finasteride-induced damage in male rats, improving reproductive function.

Using two drugs together, Flutamide and 4-MA, is more effective for blocking male hormones than using each one alone.

Gene mutations can cause problems in male genital development.

Some patients may experience lasting sexual dysfunction, depression, and other side effects from 5α-reductase inhibitor therapy.

Medical treatments like chemotherapy and radiotherapy can harm sperm production, so freezing sperm before treatment is important for men who want children later.

Testosterone boosts fluid and electrolyte secretion in seminal vesicles, aiding sperm function.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Dihydrotestosterone gel improved well-being and sexual function in older men without negatively affecting prostate health.

Male pattern baldness involves smaller hair follicles, larger oil glands, and other tissue changes, but not major blood supply issues.

Testosterone supplements can increase muscle mass and strength in older men with low levels, but long-term effects and risks need more research.

Finasteride can cause lasting sexual, emotional, and cognitive issues, with varying severity.

New treatments for male hypogonadism are effective and should be personalized.

Some parents have a mild form of congenital adrenal hyperplasia without symptoms, and they usually don't need treatment.

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

Men with Kennedy disease have less chance of hair loss.

High doses of finasteride cause cell growth and tumors in mice.

5α reductase inhibitors treat hair loss but may cause sexual side effects and risks.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

SHBG binding properties are unchanged in male liver cirrhosis patients.

Normal levels of DHT can reduce belly fat and increase muscle, but too much can lead to hair loss, prostate issues, and possibly heart disease.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

Dietary essential fatty acids improved skin and hair conditions and partially corrected fat composition in diabetic mice.