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Rats can't grow new hair follicles after skin wounds, unlike mice, due to differences in gene expression and response to WNT signaling.

Vitamin D and calcium are essential for normal hair growth.

Rapamycin reduces age-related hearing cell loss in mice, but acarbose does not.

The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.

Basonuclin 2 is vital for the development of facial bones, hair follicles, and male germ cells in adult mice, and its absence can lead to dwarfism and abnormal follicles.

The genes KRT25 and SP6 affect curly hair in horses, with KRT25 also causing hair loss. If both genes are mutated, the horse gets curly hair and hair loss. KRT25 can hide the effect of SP6.

Low-dose radiation affects hair stem cell function and survival by changing their genetic material's structure.

Sheep and goat hair fibers are complex due to keratin-associated proteins, which are important for fiber properties and growth.

Genes affecting wool fiber thickness in Angora rabbits were identified, which could help breed finer wool.

Different versions of the KRTAP6-2 gene in goats can lead to thinner cashmere fibers.

Removing the VDR gene in skin cells reduces their growth and affects hair-related genes.

A single robotic system can accurately harvest and implant hair grafts, showing promise for real-world use.

Boron deficiency in maize affects leaf boron levels and nutrient uptake differently depending on root hair presence and soil type.

A special gene region controls the re-emergence of a primitive wool type in Merino sheep, improving their wool yield and adaptability.

Local flaps are effective for covering small to large scalp and forehead defects with good cosmetic results.

Mesenchymal stem cell proteins in a special gel improved healing of severe burns.

Skin stem cells in hair follicles are important for touch sensation.

Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.

HPV genes in mice improve ear tissue healing by speeding up skin growth and repair.

Caffeine penetrates skin quickly through open hair follicles, but less through closed ones, with levels becoming equal after 22 hours.

Doctors successfully rebuilt a sideburn using skin and hair from near the ear in one surgery.

Pfizer found that pantolactam-based compounds can reduce sebum (skin oil) production when applied topically.

Hox genes control hair growth patterns in mammals by regulating stem cell activity in the skin.

Diphenyl ethers can potentially reduce excess oil production when applied on the skin, helping treat conditions like acne.

Researchers developed a quick and sensitive way to measure finasteride in blood using a small sample size.

Skin stem cells are maintained by signals from nearby cells and vary in their ability to renew and mature.

The new "differential stripping" method effectively measures how much substance gets into hair follicles.

Pig skin is a good substitute for human skin to measure drug absorption, but differences in skin structure and enzymes across species must be considered.

Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.

Injected human hair follicle cells can create new, small hair follicles in skin cultures.