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Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

Too much male hormone in mothers can negatively affect the sexual behavior of both male and female baby mice.

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

CaBP1 and 2 are important for maintaining the activity of calcium channels necessary for hearing in inner ear cells.

Zinc oxide nanoparticle biscuits improved growth and health in zinc-deficient rats without toxicity.

Different fish use the same genes to regrow teeth.

Finasteride given to baby rats reduces dopamine release and increases alcohol consumption in adult males.

Acne treatment with isotretinoin increases the presence of p53, a protein, in skin and oil glands, which may help reduce acne severity.

The black orchid Brasiliorchis schunkeana produces chemicals that attract certain insects and have potential antimicrobial properties.

Women with PCOS often have sleep problems, including sleep apnea, which are linked to obesity and depression.

Deleting the PTEN gene in mice causes nerve cells to grow larger and heal better after injury, but may cause overgrowth and hair loss in older mice.

Understanding hair follicle anatomy helps diagnose hair disorders.

IGF-1 from human placenta helps hair grow.

South American camelids should be sheared early, fleece type affects fiber quality, and the S/P follicle ratio doesn't distinguish between Bolivian llama genotypes.

Male mice are more susceptible to autism-like changes from valproic acid than female mice.

A new treatment using nanoparticles can effectively prevent and reduce hair loss caused by chemotherapy.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Decreased IGF-1R expression may contribute to sacrococcygeal pilonidal sinus development.

Two mutations in KRT74 and EDAR genes cause sheep to have finer wool.

External factors can cause skin cancer cells that usually don't spread to grow and form tumors in mice.

The document concludes that there are still unknowns about the effectiveness, risks, and detection of performance-enhancing drugs, and doping remains a challenge.

α-Tocopheryl acetate is well absorbed through healthy skin.

Different genes and pathways are active in yak skin and hair cells, affecting hair growth and immune responses.

Poplar seed hairs grow from the placenta at the ovary base, with endoreduplication playing a key role in their development, and share similar cellulose synthesis processes with cotton fibers.

Different types of cell death affect skin health and inflammation, and understanding them could improve treatments for skin diseases.

Patients with both connective tissue disease and acid reflux are more likely to have certain symptoms and physical signs.

Melatonin helps hair grow by activating a specific signaling pathway.

Juglone from walnut extracts may help repair damaged hair.

Guasha changed rat skin appearance and blood vessels temporarily without affecting certain nerve proteins or fiber structure.

Different signals work together to change gene activity and guide hair follicle stem cells to become specific cell types.