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Prolactin affects hair growth cycles and can cause early hair follicle regression.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

Hirsutism is excessive hair growth in women often caused by polycystic ovarian syndrome, and identifying the cause is important for managing associated health risks.

Neurosteroids play a key role in controlling the brain-adrenal gland activity in pregnant sheep, both in normal and stressful situations.

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.

Testosterone affects stress hormone levels differently in adolescent and adult male rats.

High doses of Lagenaria siceraria fruit powder lower FSH and LH hormone levels in male rats.

Thyroid hormone treatments help thyroidectomized rats grow normally.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

Finasteride safely lowers DHT levels without affecting testosterone.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

The document concludes that certain genetic mutations and dietary factors are involved in acne development, and treatments like isotretinoin and diet changes can help manage it.

Stress can worsen skin conditions by affecting hormone levels and immune response.

Athletes use steroids to enhance performance despite health risks and legal issues, and education on their dangers is needed.

Excessive hair growth in women often has no known cause and is not linked to race or other hormonal symptoms.

The conclusion suggests that prostate cancer should be classified by castration status and that new therapies targeting androgen receptor signaling show promise.

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.

Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.

Different halogens on progesterone derivatives can either block or mimic male hormone effects, depending on their type and amount.

Finasteride exposure harms tadpole reproduction and hormone balance.

Skin problems in older people can indicate hormonal diseases, nutritional deficiencies, or conditions like diabetes, menopause, and HIV.

COVID-19 and hypopituitarism (reduced pituitary gland function) are linked, with the latter's related health issues potentially worsening COVID-19 outcomes, and COVID-19 possibly increasing risk for pituitary complications.

Prolactin affects when mice shed and grow hair.

Testosterone significantly affects sexual desire in both men and women, but its impact on women is more complex and influenced by psychological factors.

Diabetes can lead to blindness and skin problems, and managing blood sugar and blood pressure is crucial to prevent these complications.

Hirsutism in women is often due to hormone sensitivity and has significant psychological effects.

p21waf1/cip1 and p27kip1 help in hair follicle differentiation in rats.

Hair loss led to the diagnosis of Cushing's disease in a patient, showing that hair loss can be a sign of hormonal disorders.

The document says that hair loss in women is often due to androgenic alopecia, similar to male baldness, and that hirsutism is treated with hormonal and cosmetic methods.