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The Human Tripeptide GHK and Tissue Remodeling. Journal of Biomaterials Science U.S
As IGF-1 LR3, being a modified and more powerful version of natural IGF-1, reproduces these effects without affecting levels of growth hormone secretion by the pituitary gland itself
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Moreover, NMN administration can significantly elevate NAD + biosynthesis in white adipose tissue, heart and the liver, but not the NAD + content in brown adipose tissue and kidney, suggesting a tissue- and cell-type-specific transportation of NMN to cells or tissues for NAD + biosynthesis presumably due to the deferent expression pattern of NRK1