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Dihydrotestosterone makes arteries stiffer in female mice by reducing estrogen receptor expression.

Removing a testicular tumor in a dog reduced its aggressive behavior and skin problems.

Melatonin helps regulate hair growth and protects the hair follicle from stress.

5α‐reductase isozymes are crucial for prostate development and health, and targeting them can help prevent and treat prostate issues.

Amenorrhea is relatively rare and initial testing should check FSH, TSH, and prolactin levels.

Pregnancy causes skin changes like darkening, hair thickening, nail changes, and increased risk of skin growths, most of which usually resolve after birth.

The review recommends hormone replacement therapy for women with premature ovarian insufficiency to manage symptoms and protect health, with specific approaches for different groups.

Testosterone replacement may improve sexual desire and bone health in women with low androgen levels, but more research is needed on its long-term safety.

Estrogens generally inhibit hair growth and improve skin quality, but their exact effects on hair follicles are complex and not fully understood.

The document concludes that identifying the cause of amenorrhea is crucial for proper treatment.

Steroids, particularly estrogens and 5α-reductase inhibitors, affect blood vessel-related hair growth processes in hair follicle cells.

Prenatal stress changes how male and female rats enjoy rewards differently, linked to sex hormones.

For women with moderate to severe unwanted hair growth or acne, birth control pills are the first choice, with other medications like cyproterone, spironolactone, flutamide, or finasteride as alternatives, and permanent hair removal should be done with electrolysis or laser.

Aging scalp skin contributes to hair aging and loss, and more research is needed to develop better hair loss treatments.

Finasteride reduces inflammation and improves immune response after trauma by altering hormone levels.

Testosterone therapy seems safe for short-term use in postmenopausal women with low sexual desire, but more research on long-term effects is needed.

Most adrenal cortex tumors are benign and non-secreting, but proper diagnosis and treatment are important due to the rare possibility of cancer.

Hormones like androgens, estrogen, thyroid hormones, and stress hormones can contribute to hair loss, and treatments target these hormonal imbalances.

Estrogens and progesterone are key in regulating melasma pigmentation.

Finasteride and minoxidil are effective, low-risk treatments for male hair loss, and patient education on these therapies is important.

Stress and hormones like progesterone can affect absence seizures, but their effects change with different life stages.

CK 5/6 expression in breast cancer is linked to negative hormone receptor status and higher tumor grade.

ROR-alpha may increase the growth of certain breast cancer cells by boosting aromatase, which could affect breast cancer prognosis.

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.

Eating a lot of soy might lower the chance of early hair loss in men likely to get it.

Birth control pills and cyproterone acetate can help treat acne in women, especially when linked to hormonal issues.

The medications 5α-reductase inhibitors and spironolactone are generally safe for breast cancer patients on endocrine therapies and do not significantly increase breast cancer risk.

Mirex seems to promote a unique group of skin cells different from those affected by another tumor promoter, TPA.

More research is needed to find a cure for hair loss after pregnancy.

Hair follicle biology advancements may lead to better hair growth disorder treatments.