research Comprehensive molecular and cellular studies suggest avian scutate scales are secondarily derived from feathers, and more distant from reptilian scales
Bird scales evolved from feathers, not reptile scales.
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research How Does pH Fit in with Oscillating Polar Growth?
pH, calcium, and reactive oxygen species regulate plant cell growth, with key roles for NADPH oxidases and plasma membrane H+-ATPases.
research Toxic Hepatitis Induced by Show-Wu-Pian, a Chinese Herbal Preparation
A woman's liver was damaged by taking the herbal supplement Shou-Wu-Pian, but it got better after she stopped using it.
research DTC pharmaceutical advertising: the debate’s not over
The debate on direct-to-consumer pharmaceutical ads continues, with consumers finding them educational and doctors concerned about their impact on patient relationships and medication understanding.
research Hair pull test: Evidence-based update and revision of guidelines
The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
research Topical Minoxidil in Extensive Alopecia areata, Including 3-Year Follow-Up
Topical minoxidil effectively and safely treats extensive alopecia areata but doesn't change its course.
research Effect of minoxidil on blood pressure and hemodynamics in severe hypertension
research Dormancy in the stem cell niche
Some stem cells in the body rarely divide, which could help create better treatments for diseases and aging.
research Cosmetics and hair loss
Hair care products don't cause hair loss if used correctly.
research Finasteride, not tamsulosin, increases severity of erectile dysfunction and decreases testosterone levels in men with benign prostatic hyperplasia
Finasteride worsens erectile dysfunction and lowers testosterone in men with enlarged prostates, unlike tamsulosin.