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The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

Cancer can hijack the body's cell repair system to promote tumor growth, and targeting this process may improve cancer treatments.

Stress can worsen skin conditions by affecting hormone levels and immune response.

Skin tumor regression is helped by retinoic acid signaling blocking Wnt signaling.

Thyroid function affects skin health, with a complex interaction between the two.

EGF and FGF help hair growth by affecting cell differentiation and fiber growth.

The conclusion suggests that prostate cancer should be classified by castration status and that new therapies targeting androgen receptor signaling show promise.

The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.

Fat stem cells from diabetic mice can help heal skin wounds in other diabetic mice.

Understanding and tracking our body's natural daily rhythms could help improve heart health.

Menopausal women have higher androgen levels, which can cause symptoms like facial hair growth and low sexual desire.

The study found that women with hyperandrogenic PCOS have higher levels of AKT1 and AKT2 proteins in their cells, which may lead to cell dysfunction.

DHT stops hair regrowth in mice, similar to human hair loss.

Many treatments for hair loss lack proper testing and FDA approval, so their effectiveness is uncertain.

Hormonal therapies help treat female hair loss, but results are slow and vary.

The exact cause of growth hormone-responsive alopecia in dogs is unclear.

The study found that a specific signaling pathway helps skin wounds heal faster but may lead to larger scars.

c-kit affects hair growth and color in alopecia areata and androgenetic alopecia.

Blocking cell death in certain stem cells can improve wound healing and tissue regeneration.

Disrupted sleep patterns can harm skin and hair cell renewal, but melatonin might help.

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

A new gene variant causes glucocorticoid resistance in a mother and son.

Researchers found four key stages of cell development that are important for hair growth and shedding in cashmere goats.

Scientists found a new method using 3D cell cultures to grow human hair which may improve hair restoration treatments.

Testosterone therapy can help postmenopausal women with low sexual desire but needs more safety research and should be used with estrogen therapy.

Testosterone therapy can help with androgen deficiency in women but should be used with caution and monitoring due to potential risks.

The secretions of mesenchymal stem cells could be used for healing without using the cells themselves.

The skin has a complex immune system that is essential for protection and healing, requiring more research for better wound treatment.

Hair regeneration needs dynamic cell behavior and mesenchyme presence for stem cell activation.

Insulin resistance is a key factor in polycystic ovary syndrome, but genetics may also contribute.