A 1925 study by Wolbach and Howe found that vitamin A deprivation in rats leads to keratinization of epithelial tissues, affecting various body parts including the respiratory and genitourinary tracts, eyes, and glands.
A 1925 study by Wolbach and Howe found that vitamin A deprivation in rats leads to keratinization of epithelial tissues, affecting various body parts including the respiratory and genitourinary tracts, eyes, and glands.