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A molecule called α-ketobutyrate was found to extend lifespan and improve aging-related symptoms in worms and mice by activating certain cellular pathways and may help develop anti-aging treatments for humans.

Reduced neurosteroid production increases fear in mice, suggesting potential PTSD treatments.

Hair dye can cause serious scalp issues, including skull erosion.

Seeing trauma causes fear in mice by lowering their natural fear-reducing hormones.

Brain-made chemicals can control nerve cell function differently in various parts of a mouse's brain, which may help us understand neurological conditions.

11β-Hydroxylase inhibitors help prevent seizures in mice by boosting natural neurosteroid production.

Hemoglobin α acts as an antioxidant in skin cells, especially protecting hair follicle stem cells from UV damage.

Hair follicle stem cells and skin cells show promise for hair and skin therapies but need more research for clinical use.

Temporary ROS production in cultured human hair follicles promotes growth and stem cell activation.

Lgr5+ stem cells do not cause skin tumors.

Melatonin affects cashmere growth in goats by influencing stem cell and certain signaling pathways.

Taking Saw palmetto and Pygeum africana can change the levels of certain steroids in urine, which could cause confusion in doping tests.

Vitamin D affects Msx1 protein expression and may influence mineralized tissue health.

Researchers created a mouse model for Cushing's syndrome to study glucocorticoid excess and potential treatments.

Oocyte retrieval is possible for transgender men on testosterone therapy without affecting fertility outcomes.

A castrated dog developed hair loss and prostate issues from long-term exposure to estrogen cream.

Stem cells show promise in speeding up wound healing and tissue regeneration.

Matriptase is crucial for skin barrier, hair growth, and may contribute to skin cancer.

Hormones like estrogen, testosterone, progesterone, and prolactin play complex roles in female sexual function, with testosterone potentially improving sexual desire, arousal, and satisfaction. However, more research is needed to establish safe and effective hormone treatments for female sexual dysfunction.

Antioxidants can benefit skin health but should be used carefully to avoid negative effects.

Smart biomaterials that guide tissue repair are key for future medical treatments.

Some common medications can harm male fertility, but many effects can be reversed.

Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.

Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.

Degraded hair shafts resist contamination and can be easily cleaned.

Testosterone is linked to cardiovascular risk factors and stroke, but its exact role is unclear.

The method effectively detects banned substances in urine for sports antidoping.