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April 2015 in “Regeneration” Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.
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July 2004 in “American Journal of Pathology” Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.
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January 2013 in “Frontiers in genetics” Stem cells can help other stem cells by producing supportive factors.
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March 2020 in “Australian Dental Journal” Platelet-rich plasma might help tissue regeneration in dentistry, but results vary and more research is needed.
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February 2018 in “International Journal of Molecular Sciences” PGD2 increases androgen receptor activity in hair cells, which could be targeted to treat hair loss.
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October 1990 in “Alcoholism/Alcoholism, clinical and experimental research” The document concludes that the exact way alcohol causes harm to fetal development is unknown, but it significantly affects nutrient transport to the fetus and a safe level of alcohol during pregnancy is not determined.