The authors have perfected a thick-tissue preparation method for observing hair at various stages of growth, and their findings challenge the currently held three-stage common hair cycle. They have put forward a new hypothesis, the four-stage essential hair cycle, that incorporates their discovery that stem cells are located in the isthmal portion of the sebaceous gland. The essential hair cycle is then used to review the factors contributing to the process of androgenetic alopecia, or premature balding, as it is commonly called. This is followed by an explanation of some general measures for the prevention of androgenetic alopecia and a description of the treatments available.
The authors have perfected a thick-tissue preparation method for observing hair at various stages of growth, and their findings challenge the currently held three-stage common hair cycle. They have put forward a new hypothesis, the four-stage essential hair cycle, that incorporates their discovery that stem cells are located in the isthmal portion of the sebaceous gland. The essential hair cycle is then used to review the factors contributing to the process of androgenetic alopecia, or premature balding, as it is commonly called. This is followed by an explanation of some general measures for the prevention of androgenetic alopecia and a description of the treatments available.
A "documentary comic book" from 1931, depicting the true adventures of four young Japanese men in America. Originally published in Japanese in San Francisco in 1931, The Four Immigrants Manga is Henry Kiyama’s visual chronicle of his immigrant experiences in the United States. Drawn in a classic gag-strip comic-book style, this heartfelt tale—rediscovered and translated by manga expert Frederik L. Schodt—is a fascinating, entertaining depiction of early Asian American struggles.
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