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Hair and wool have complex microscopic structures with microfibrils and varying cystine content.

Understanding hair follicle anatomy helps diagnose hair disorders.

Removing both Atr and Trp53 genes in adult mice causes severe tissue damage and death due to DNA damage.

Researchers created rat liver stem cells that could help repair liver failure in rats and may be useful for studying human liver diseases.

Wnt signaling is important for development and cell regulation but can cause diseases like cancer when not working properly.

The best way to extract saponins from Eclipta prostrasta is using 70% ethanol, at 70°C for 3 hours with a 14:1 liquid to solid ratio.

Changes in keratin make hair follicles stiffer.

Human alpha defensin 5 helps heal wounds, reduce bacteria, and grow hair on burned skin.

Scalp melanomas are more dangerous and often missed, needing earlier detection.

The gene p53 is crucial for removing damaged cells to allow for healthy tissue renewal.

Non-Kuwaiti COVID-19 patients had worse health outcomes than Kuwaitis, likely due to poorer socioeconomic conditions.

The new FDA labeling rules provide more detailed drug safety information for pregnant and breastfeeding women, but more data is needed on the risks of many dermatologic drugs.

Adrenal glands delay the start of winter fur growth in mink.

Minoxidil sulfotransferase is a marker of keratinocyte differentiation and may play a role in hair growth.

The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.

A patient with zinc depletion improved after zinc supplementation during parenteral nutrition.

Dermoscopy is useful for many health professionals, not just dermatologists, in improving skin condition diagnoses and reducing unnecessary biopsies.

Accurate diagnosis of cicatricial alopecias requires thorough scalp examination and multiple biopsy techniques.

The document reports unique growth lines in a child after Stevens-Johnson syndrome, skin reaction from parsnips and sun in a girl, and itchy skin with xanthomas in a boy with Alagille syndrome.

Swimming in Lake Malawi can lead to schistosomiasis, hepatitis B vaccine might cause temporary hair loss, and certain drinks affect kidney stone risk.

Removing the ATR gene in adult mice causes rapid aging and stem cell loss.

Improving artificial vascular grafts requires better materials and surface designs to reduce blood clotting and support blood vessel cell growth.

Certain proteins, Lgr5 and Lgr6, are important markers of adult stem cells and are involved in tissue repair and cancer development.

Androgens can both increase and decrease hair growth in different parts of the body.

Aging causes skin stem cells to work less effectively.

Matriptase is crucial for keeping epithelial tissues healthy and functioning properly.

Modern lifestyles, including poor diet, stress, and long-term use of certain medications, hinder the body's ability to heal from inflammation, leading to chronic diseases.

Trilostane effectively and safely treats dogs with pituitary-dependent hyperadrenocorticism, improving symptoms and adrenal gland size.

Smoking harms the skin, causing early aging and increasing cancer risk, but stopping smoking can improve skin health.

Preoperative pain assessment, regional anesthesia, and vitamin C can help prevent CRPS after surgery.