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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.

Bioprinting could greatly improve health outcomes but faces challenges like material choice and ensuring long-term survival of printed tissues.

RORA may help regulate hair growth by affecting hair follicle stem cells.

Plant-based compounds can improve wound dressings and skin medication delivery.

Skin organoids from stem cells could better mimic real skin but face challenges.

The review concludes that innovations in regenerative medicine, tissue engineering, and developmental biology are essential for effective tissue repair and organ transplants.

Eyelid cells share signaling components but differ in pathway activity.

Wnt4 protein makes the outer skin layer thicker in burn wounds by turning on a specific healing pathway and loosening the connections between skin cells.

Men and women react differently to opioids, with hormones potentially influencing these differences.

Blue-light activation of TrkA improves hair-follicle stem cells' ability to become neurons and glial cells.

The document concludes that while there are promising methods to control CRISPR/Cas9 gene editing, more research is needed to overcome challenges related to safety and effectiveness for clinical use.

Active oxygen species might be involved in skin tumor growth, but their exact role is unclear.

The nervous system helps control stem cell behavior and immune responses, affecting tissue repair and maintenance.

Intravital imaging helps us better understand stem cells in their natural environment and could improve knowledge of organ regeneration and cancer development.

The vitamin D receptor is crucial for bone health and affects various body systems, with mutations potentially leading to disease.

The conclusion is that normal trace element levels in newborn calves' hair are between the 25th and 75th percentiles, and levels outside this may indicate diselementosis.

SARS-CoV-2, the virus causing COVID-19, can affect all endocrine organs and systems, altering their function and potentially leading to disorders. Factors like diabetes and obesity increase infection risk and severity. Understanding these effects is key for effective treatment.

Testosterone therapy may improve mood, well-being, and sexual function in premenopausal women, but more research is needed on its long-term safety and effectiveness.

The article concludes that cranial reconstruction should aim for the best aesthetic result, using various techniques tailored to individual needs and conditions.

Removing a testicular tumor in a dog reduced its aggressive behavior and skin problems.

Changes in skin bacteria can affect hair loss and new treatments targeting these bacteria may prevent balding without sexual side effects.

Proper care and diet are crucial to prevent health issues in gerbils.

Jarjeer has potential health benefits and may aid hair growth, but effects on humans are uncertain.

Skin-derived stem cells grow faster and are easier to obtain than hair follicle stem cells, but both can become various cell types.

Adding a second method to PROTACs could improve cancer treatment.

PRP helps skin heal, possibly through special cells called telocytes.

Umbilical cord blood is a valuable source of stem cells for medical treatments, but its use is less common than other transplants, and there are ethical issues to consider.

3D bioprinting is advancing in plastic and reconstructive surgery, especially for creating tissues and improving surgical planning, but faces challenges like vascularization and material development.

Stem cell niches regulate the number and function of stem cells in the body.