January 2005 in “Journal of Zhejiang University(Sciences Edition)” This study observed that Yuyi hairless mice develop alopecia shortly after birth, with the skin eventually thickening and forming folds, and hair failing to regrow as they age.
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December 2011 in “Annals of anatomy” This study found that involucrin likely plays a key role in forming the cornified material of the medulla and inner root sheath of human hair, contributing to its mechanical strength.
May 2005 in “Zhonghua chuangshang guke zazhi” This study found that human hair keratin bridges effectively induced nerve regeneration and demonstrated good biocompatibility and controlled degradation when used in rats with peripheral nerve defects.
May 2022 in “Голова и шея.” In this pilot study, researchers observed that low-intensity laser radiation at 445±40 nm increased the temperature of gingival tissues in Wistar rats by 8.37°C without exceeding the safety threshold, suggesting potential for clinical trials.
June 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that the HoxC gene cluster is crucial for the development of hair and nails in mice, with key regulation by two mammalian-specific enhancers.