August 1969 in “Archives of Dermatology” In this study, histologic analysis of rat skin with localized calciphylaxis indicated that although the skin showed potential for regeneration, the result was incomplete and resembled scar tissue with diminished hair presence.
August 1969 in “Archives of Dermatology” In this study, the authors reported that in rat skin affected by localized calciphylaxis, although regeneration occurs and some connective tissue remains, the regenerate resembles scar tissue with reduced hair presence and lacks restored elastic fibers.
4 citations
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June 2023 in “Journal of developmental biology” In this study, researchers propose that different vertebrate skin appendages, such as hair, feathers, and scales, evolved in parallel from a shared ancestral cell structure associated with teeth, dating back approximately 420 million years ago.
86 citations
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April 2009 in “Journal of anatomy” This paper reviews the evolution of skin appendages and keratin-associated proteins among amniotes, proposing a model for their genetic divergence without new experimental results.
19 citations
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July 1994 in “International Journal of Dermatology” This case report describes a 9-year-old Korean boy with a calcified nodule on his earlobe, confirmed by histopathologic examination and Von Kossa staining.