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Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.

Gata6 is important for protecting hair growth cells from DNA damage and keeping normal hair growth.

Valproic acid helps delay hair loss and increases survival time for high-grade glioma patients undergoing radiation therapy.

Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.

Juniperus plants contain compounds with potential for developing various medical treatments.

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

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.

Finasteride affects frog testes by increasing testosterone, decreasing 5α-DHT, and impacting genes related to reproduction and other functions.

The research reveals how early embryonic mouse skin develops from simple to complex structures, identifying various cell types and their roles in this process.

Elastic Net DNA methylation clocks are inaccurate for predicting age and health status; a "noise barometer" may better indicate aging and disease.

Stem cells help remove dead cells to keep tissues healthy by balancing cell replacement and clearance.

Sebaceous glands can heal and regenerate after injury using their own stem cells and help from hair follicle cells.

miR-29 is a key factor that accelerates aging.

Early treatment of acne is crucial to prevent scarring and psychological effects.

Humans have limited regenerative abilities, but new evidence shows the adult brain and heart can regenerate, and future treatments may improve this by mimicking stem cell environments.

The document concludes that while some organisms can regenerate body parts, mammals generally cannot, and cancer progression is complex, involving mutations rather than a strict stem cell hierarchy.

Skin aging reflects overall body aging and can indicate internal health conditions.

Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.

Vav2 changes how hair follicle stem cells' genes work as they age, which might improve regeneration but also raise cancer risk.

Certain long non-coding RNAs are important for controlling hair growth cycles in sheep.

A group has developed therapies that show promise for treating cancer and various other conditions.

The gene Tfap2b is essential for creating a type of stem cell in zebrafish that can become different pigment cells.

Hyaluronic acid injections improve skin thickness and quality, protecting against aging in rats.

DPP4 is important for scarring and skin regeneration, and managing its activity could improve skin healing treatments.

Stem cells regenerate tissues and their behavior varies by environment, suggesting the hematopoietic system model may need revision.

Plant root hair growth is controlled by the hormone auxin, which affects the production of certain oxygen-related molecules through a specific process.

Ovol2 is crucial for hair growth and skin healing by controlling cell movement and growth.

PAI-2 helps in the maturation and protection of hair and nail cells.

Valproic Acid helps regrow hair in mice and activates a hair growth marker in human cells.

Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.