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    • Hydrogel That...

    Hydrogel That encourages healing all by itself in diabetic ulcers

    Written by Anjali Nimesh Nimesh Published On 2018-03-23T19:15:55+05:30  |  Updated On 23 March 2018 7:15 PM IST
    Hydrogel That encourages healing all by itself in diabetic ulcers

    Typical treatment for a diabetic foot ulcer has not changed much over the last century. The current gold standard of treatment of a Diabetic Ulcer is to debride the wound wash it, bandage it and patients are told to keep pressure off the foot.Various treatments and materials may be tried, but oftentimes, everything fails, which can lead to amputation.Researchers at Rice University have invented a hydrogel that is adept at helping the body heal may also be particularly good at treating wounds related to diabetes.The study appears in the American Chemical Society journal ACS Biomaterials Science and Engineering.





    The Rice lab of chemist and bioengineer Jeffrey Hartgerink reported this week that tests on diabetic animal models showed the injectable hydrogel significantly accelerated wound healing compared with another hydrogel often used in clinics. The multidomain peptide (MDP) hydrogel known by its amino acid sequence -- K2(SL)6K2 -- has in a recent study proven useful for the timed release of immunotherapy drugs. It has also been shown to encourage healing all by itself.

    That quality may be useful for people with diabetes mellitus who often develop chronic wounds in their lower extremities that take longer to heal than normal wounds.

    "This is particularly exciting because the study shows our material has an effect that's positive and better than things that are already out there," Hartgerink said. "This has been a long time coming."

    The researchers reported that Rice's MDP hydrogel significantly accelerated the healing of wounds in genetically diabetic rodents. Treatment led to wound closure in 14 days, the formation of thick granulation tissue, including dense growth of blood vessels and nerve cells, and the regeneration of hair follicles.

    They compared their results with a control group treated with a commercial hydrogel that required twice as long to reach the same degree of wound closure. "Unlike our MDP hydrogel, the control hydrogel does not get infiltrated by cells," Carrejo said. "Although the control results in the healing of wounds, we believe cellular infiltration of our MDP helps lead to the acceleration of wound healing."

    Hartgerink hopes to move the hydrogel toward clinical trials as a material rather than a drug to ease the federal approval process. "That would make it much more practical to do a clinical trial," he said. "These preclinical experiments have been exciting enough to warrant that thought process."

    For more details click on the link : ACS Biomaterials Science & Engineering, 2018; DOI: 10.1021/acsbiomaterials.8b00031

    diabetic ulcerdiabetic ulcershydrogelImmunotherapy drugsjournal ACS Biomaterials Science and Engineeringmultidomain peptidenecrotic tissuenerve cellsNicole Carrejo
    Source : Press Release

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    Anjali Nimesh Nimesh
    Anjali Nimesh Nimesh
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