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MiMedx Group, Inc. Message Board

  • stemcellmagnet stemcellmagnet Apr 29, 2014 9:09 AM Flag

    Just Published "dHACM" even after testing it in -78.7 CELCIUS to plus 73.5 Celsius 138 degrees still retained 36 Cytoklines!! This is huge!

    PURION® processed dehydrated human amnion/chorion membrane (dHACM; MiMedx Group, Marietta, GA) tissue products were analyzed for the effectiveness of the PURION® process in retaining the native composition of the amniotic membrane and preserving bioactivity in the resulting products. dHACM was analyzed for extracellular matrix (ECM) composition through histological staining and for growth factor content via multiplex ELISA arrays. Bioactivity was assessed by evaluating endogenous growth factor production by human dermal fibroblasts in response to dHACM and for thermal stability by mechanical tests and in vitro cell proliferation assays. Histology of dHACM demonstrated preservation of the native amnion and chorion layers with intact, nonviable cells, collagen, proteoglycan, and elastic fibers distributed in the individual layers. An array of 36 cytokines known to regulate processes involved in inflammation and wound healing were identified in dHACM. When treated with dHACM extracts, bioactivity was demonstrated through an upregulation of basic fibroblast growth factor, granulocyte colony-stimulating factor, and placental growth factor biosynthesis, three growth factors involved in wound healing, by dermal fibroblasts in vitro. After conditioning at temperatures ranging from -78.7 to +73.5°C, dHACM retained its tensile strength and ability to promote proliferation of dermal fibroblasts in vitro. Elution experiments demonstrated a soluble fraction of growth factors that eluted from the tissue and another fraction sequestered within the matrix. The PURION® process retains the native composition of ECM and signaling molecules and preserves bioactivity. The array of cytokines preserved in dHACM are in part responsible for its therapeutic efficacy in treating chronic wounds by orchestrating a "symphony of signals" to promote healing. © 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2014.
    Copyright © 2014 Wiley Periodicals, Inc.
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    Sentiment: Strong Buy

 
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