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The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

Biomaterials with MSC-derived substances could improve tissue repair and have advantages over direct cell therapy.

Noggin is necessary to start the hair growth phase in skin after birth.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Overexpression of activin A in mice skin causes skin thickening, fibrosis, and improved wound healing.

Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.

Platelet-rich plasma with a new carrier significantly increases hair thickness without serious side effects.

HairMax LaserComb® effectively promotes hair growth and stops hair loss in males with androgenetic alopecia, with no serious side effects.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Estrogen therapy can reduce skin aging but has cancer risks.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Periodontal ligament stem cells show promise for regrowing tissues but require more research for safe, effective use.

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

PRP treatment helps hair growth and density in androgenetic alopecia patients.

Low oxygen conditions increase the hair-growing effects of substances from fat-derived stem cells by boosting growth factor release.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

Over one-third of women experience hair loss, with female-pattern hair loss being most common, and treatments include minoxidil and possibly hair transplantation.

Cepharanthine is a well-tolerated drug with multiple medical uses, including anti-inflammatory and anti-cancer properties.

Fat cells in the skin help start healing and form important repair cells after injury.

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.

Platelet-rich plasma might help with hair growth and skin conditions, but more research is needed to prove its effectiveness and safety.

Aminopterin strongly suppresses epithelial tissues and can treat certain skin conditions but has significant side effects.

Dihydrotestosterone gel improved well-being and sexual function in older men without negatively affecting prostate health.

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

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.