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Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Rhodococcus equi causes severe pneumonia in young foals, and effective vaccines are needed due to foals' weak immune responses.

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.

The research identified various cell types in mouse and human teeth, which could help in developing dental regenerative treatments.

Most youth with gender dysphoria received hormones, had minor complications, and showed a decrease in suicide attempts after treatment.

Scientists turned rat thymus cells into stem cells that can help repair skin and hair.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Women with PCOS are more than twice as likely to develop nonalcoholic fatty liver disease.

People with PCOS, especially if obese, often have NAFLD, linked to obesity, insulin resistance, and high androgen levels.

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.

Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.

Liposomes could improve how skin care products work but are costly and not very stable.

Hair loss linked to higher heart disease risk in both men and women.

Finasteride lowers risk of urinary issues and surgery by over 50% in 4 years.

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

Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.

Correct skin biopsy techniques are crucial to avoid misdiagnosis of skin diseases.

UV radiation can help sterilize wounds and promote healing but requires careful use to avoid damaging cells.

Activating TRPV3 stops human hair growth.

Formyl-peptide receptor agonists could be new anti-inflammatory drugs.

Hirsutism is more linked to high androgen levels than acne or hair loss, and a mix of hormonal tests is best for diagnosis; certain treatments can reduce symptoms.

Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.

Restoring hair bulb immune privilege is crucial for managing alopecia areata.

Fullerenes show potential in skin care but need more safety research.

Medications have become the main treatment for enlarged prostate symptoms, replacing surgery and watchful waiting.

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

The document concludes that adult mammalian skin contains multiple stem cell populations with specific markers, important for understanding skin regeneration and related conditions.