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Prolactin affects when mice shed and grow hair.

The document concludes that treating female hair loss should target reducing excess androgen and blocking its effects on hair follicles, with the best treatments being hormonal therapy, adrenal suppression, and topical minoxidil.

Blocking 5α-reductase can harm memory and brain structure, and increase harmful brain changes in male mice used for Alzheimer's disease research.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Finasteride affects young male rats' brain function and behavior negatively.

Genomic approach finds new possible treatments for hair loss.

5α-reductase inhibitors may worsen sexual drive and spontaneous erections but don't worsen existing erectile or ejaculatory problems.

A woman with acromegaloidism and normal growth hormone levels had a rare X-Tetrasomy, suggesting a need to study X-chromosome genes for their role in growth and facial development.

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.

The conclusion is that young women with excessive hair growth should be quickly tested for hormonal issues and treated to improve their social well-being.

The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.

Men are more likely to have severe respiratory viral infections like COVID-19 due to hormonal and genetic differences, while women generally have stronger immune responses.

Certain genetic variations in OCT1 may improve insulin sensitivity with metformin in women with PCOS.

Dutasteride caused more penile tissue changes than finasteride, possibly increasing erectile dysfunction risk.

Female mice with disrupted 5α-reductase 1 had significant metabolic issues, including stress response problems, insulin resistance, liver fat buildup, and obesity.

Nandrolone might increase muscle mass with fewer side effects than testosterone but could cause erectile dysfunction and needs more research.

The conclusion is that there is a high demand for new contraceptives that provide both pregnancy prevention and protection against STIs, along with additional health benefits.

New ABCA12 gene mutations were linked to a skin condition with scaling and hair loss, and a treatment helped with hair loss in a related case.

About 20% of Japanese macaques had head alopecia, and stress and environment might cause hair loss.

We need better ways to test and understand SARMs to make safer and more effective treatments.

An alpaca acted like a male and couldn't have babies because of a benign tumor in its ovary that caused high testosterone levels.

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

Androgens can cause hair growth in some areas but hair loss on the scalp.

Short telomeres contribute to aging and cancer, and while telomerase can delay aging, it may also promote cancer.

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.

Reduced androgens linked to kinky hair disorder and hair loss; 5a-reductase inhibitors may help.

Immunizing goats against melatonin can temporarily change their cashmere growth cycles and increase fleece production.

New hormonal treatments for enlarged prostate show promise for safer, effective non-surgical options.

The document concludes that the hCG protocol may help in obesity treatment and could be scientifically justified, but more research is needed.

Biotin supplements improved skin and hair problems in a girl with biotinidase deficiency.