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

Innovative methods are reducing animal testing and improving biomedical research.

HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.

Hair follicles can be used to quickly assess drug effects in cancer treatment.

Targeted anticancer therapies can cause severe side effects similar to traditional chemotherapy, but with different types.

Dutasteride, usually used for prostate issues and hair loss, could potentially treat Amyotrophic Lateral Sclerosis (ALS) due to its neuroprotective, antioxidant, and anti-inflammatory properties, but more testing is needed.

The study identified unique genes in hair follicle cells and their environment, suggesting these genes help organize cells for hair growth.

Chitosan, a natural substance, can be used to create tiny particles that effectively deliver various types of drugs, but more work is needed to improve stability and control of drug release.

Chicken feather growth involves specific genes and shares similarities with hair development.

Melanocytes are important for normal body functions and have potential uses in regenerative medicine and disease treatment.

ATP increases melanin production in skin after UV exposure, with the P2X7 receptor being crucial for this process.

Physical activity, height, and smoking affect prostate cancer risk.

The document concludes that the skin's immune system is complex, involving interactions with hair follicles, nerves, and microbes, and can protect or cause disease, offering targets for new treatments.

A protein in plants needs to bind two lipids to help with root hair growth, and this process is similar across different plant species.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

Short telomeres contribute to aging and cancer, and while telomerase can delay aging, it may also promote cancer.

Scientists found a specific group of itch-sensing nerve cells in mice important for feeling itch but not for sensing heat or touch.

Hair dye ingredient PPD causes cell death and aging in human hair cells by altering microRNA levels.

A protein called desmoglein 3 is important for keeping hair follicle stem cells inactive and helps in their regeneration.

New treatments for hair loss from alopecia areata may include targeting immune cells, using stem cells, balancing gut bacteria, applying fatty acids, and using JAK inhibitors.

Researchers created a mouse model of a type of rickets that does not cause hair loss.

LGR5 helps maintain corneal cell characteristics and prevents unwanted changes by controlling specific cell signaling pathways.

Future osteoporosis treatments should focus on increasing bone growth, with many promising options available.

Stress-related substance P may lead to hair loss and negatively affect hair growth.

The enzyme steroid sulfatase is linked to breast cancer and other conditions, and inhibitors are being developed for treatment.

Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.

Wnt signaling is crucial for skin and hair development and its disruption can cause skin tumors.

Different scaffold patterns improve wound healing and immune response in mouse skin, with aligned patterns being particularly effective.

Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.