Electron Microscope Observations on the Glassy Layer of the Hair Follicle
December 1957
in “
Experimental Cell Research
”
Studysummary This study observed that the glassy layer of hair follicles in guinea pigs consists of thick collagen-type fibrils organized into two distinct arrays, whereas in young mice, the fibrils are thinner and develop between the outer root sheath and fibroblasts.
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The study examines the glassy layer of hair follicles in young mice and adult guinea pigs using an electron microscope. In guinea pigs, the glassy layer consists of collagen-type fibrils about 500 Å in diameter, organized into two arrays: an inner array parallel to the follicle length and an outer array at right angles. In young mice, the fibrils are about 200 Å in diameter and develop between the outer root sheath and a surrounding layer of fibroblasts.
