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Thyroid hormones and androgens affect gene expression in frog reproductive organs differently between males and females.

Organic selenium may offer better retention and less waste in puppies.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Vitamin D receptor can control the hairless gene linked to hair loss even without vitamin D.

Melatonin implants can change the seasonal prolactin levels and hair growth in adult cashmere goats but not in juveniles, and don't delay spring moult for better fiber harvesting.

Changes in the HR gene have influenced hair growth and may lead to hair loss conditions in humans.

New and known mutations in the hairless gene cause a hair loss condition called Atrichia with papular lesions.

Mutations in the enzyme don't significantly change how it binds to its specific substances.

Genetic testing is crucial for diagnosing congenital atrichia, a rare condition causing irreversible hair loss.

Managing recurrent painless thyroiditis is challenging and should be personalized based on episode frequency, severity, symptoms, and patient preferences.

Adults should not consume more than 255 micrograms of selenium per day to avoid risk of hair loss and other side effects.

Follistatin and LIN28B together improve the ability of inner ear cells in mice to regenerate into hearing cells.

Two new mutations in the CDH3 gene cause hair loss and vision problems in a young girl.

The research found genes and miRNAs that may control hair growth in Forest Musk Deer.

Reassurance and counseling are key in managing acute telogen effluvium, with supplements possibly offering a placebo effect.

CDP is crucial for lung and hair follicle cell development.

A patient with a scalp condition and benign skin tumor experienced hair loss and did not improve with treatment, choosing not to have surgery despite a small cancer risk.

The research found that anovulatory young women have higher androgen and hormone levels than those who ovulate, suggesting immature hormonal regulation rather than a specific condition.

Male-pattern hair loss is normal, often involves hormone effects on hair follicles, and can be treated with medication or surgery, but new treatments are being researched.

Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.

The report concludes that PCOS is mainly a condition of excess male hormones and its definition may change as new information is discovered.

A woman's rare adrenal tumor caused high testosterone and cortisol levels, which normalized after the tumor was removed.

A woman's excessive hair growth was caused by a rare benign tumor in her adrenal gland, which was successfully removed.

Endocrine disruptors may cause early hair loss.

Sheehan's syndrome can sometimes cause psychosis.

Hair growth is cyclic and influenced mainly by local factors.

High androgen levels in young women with PCOS are linked to higher blood pressure.

Women with AGA have less hair on midscalp, more thin and non-growing hair.

The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.

Adrenal glands delay the start of winter fur growth in mink.