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Androgen replacement therapy can improve libido and mood in women with severe androgen deficiency, but more research is needed on its long-term safety.

Researchers found genes that control hair color and growth change before the visible coat color changes in snowshoe hares.

POMC-derived peptides are important for skin functions like immune response and stress management.

Cholesterol balance is important for hair health, and problems with it can lead to hair loss conditions.

Shift work disrupts the body's natural clock, leading to health problems.

Hair ages and thins due to factors like inflammation and stress, and treatments like antioxidants and hormones might improve hair health.

Hormones and their receptors, especially androgens, play a key role in hair growth and disorders like baldness.

Sex hormones affect reproduction, sexual development, and oral health, and it's important for dental practitioners to understand their effects and interactions.

The document concludes that sex hormones are crucial for mammalian reproduction, health, and behavior, and require more research for therapeutic use.

The enzyme steroid sulfatase is linked to breast cancer and other conditions, and inhibitors are being developed for treatment.

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.

Hair color is determined by melanin produced and transferred in hair follicles.

Male hormones cause different growth in identical human hair follicles due to their unique epigenetic characteristics.

Testosterone replacement may help post-menopausal women with androgen insufficiency, but more research is needed on its benefits and risks.

Both estrogens and androgens are important for health in both males and females.

pH, calcium, and reactive oxygen species regulate plant cell growth, with key roles for NADPH oxidases and plasma membrane H+-ATPases.

Testosterone replacement may help postmenopausal women with sexual function and bone density, but suitable treatments are limited.

Fatty acid transport protein 4 is essential for skin and hair development.

Higher testosterone harms sperm motility, while higher estradiol improves sperm survival.

The article concludes that better understanding gene regulation related to seasonal changes can offer insights into the mechanisms of seasonal timing in mammals.

Polycystic Ovary Syndrome (PCOS) is a common condition in women that can cause metabolic, reproductive, and psychological issues, and requires lifestyle changes and medication for management.

New tools show that in fish, NPY increases feeding and somatostatin decreases it.

SHBG binding properties are unchanged in male liver cirrhosis patients.

C60 fullerenes can alter protein function and may help develop new disease inhibitors.

Melatonin affects certain genes and pathways involved in cashmere goat hair growth.

Melatonin can increase cashmere yield by altering gene expression and restarting the growth cycle early.

Healthy mitochondria in skin cells are essential for proper hair growth and skin cell interaction in mice.

TDM10842, a thyroid hormone receptor activator, was found to effectively promote hair growth in mice.

Finasteride doesn't affect hormone levels in normal men.

The conclusion is that accurately replicating the complexity of the extracellular matrix in the lab is crucial for creating realistic human tissue models.