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An innovative technology has been developed to enable bone regeneration to correct large bone defects by means of a special hydrogel. Following successful tests in an animal model, the researchers now plan to move forward to clinical trials.The groundbreaking study was conducted by experts from TAU's Maurice and Gabriela Goldschleger School of Dental Medicine, led by Prof. Lihi Adler-Abramovich and Dr. Michal Halperin-Sternfeld, in collaboration with Prof. Itzhak Binderman, Dr. Rachel Sarig, Dr. Moran Aviv, and researchers from the University of Michigan in Ann Arbor. The paper was published in the Journal of Clinical Periodontology.Prof. Adler-Abramovich: "Small bone defects, such as fractures, heal spontaneously, with the body restoring the lost bone tissue. The problem begins with large bone defects. In many cases, when substantial bone loss results from tumor resection (removal by surgery), physical trauma, tooth extraction, gum disease or inflammation around dental implants, the bone is unable to renew itself. In the current study, we developed a hydrogel that mimics the natural substances in the extracellular matrix of bones, stimulating bone growth and reactivating the immune system to accelerate the healing process."The researchers explain that the extracellular matrix is the substance surrounding our cells, providing them with structural support. Every type of tissue in our body has a specific extracellular matrix consisting of suitable substances with the right mechanical properties. The new hydrogel has a fibrillary structure that mimics that of the extracellular matrix of the natural bone. Furthermore, it is rigid, thus enabling the patient's cells to differentiate into bone-forming cells."As can be expected, the extracellular matrix of our bones is quite rigid," says Prof. Adler-Abramovich. "In our study, we produced a hydrogel that mimics this specific matrix in both chemical and physical properties. At the nanometric level, the cell can attach itself to the gel, gaining structural support and receiving relevant mechanical signals from the fibers. At first, to test these properties, we grew cells in a 3D model of the gel. Then we examined the impact of the hydrogel on model animals with large bone defects that could not heal spontaneously. We monitored them for two months with various methods, including Micro C.T. To our delight, the bone defects were fully corrected through regeneration, with the bones regaining their original thickness, and generating new blood vessels."According to Prof. Adler-Abramovich, the innovative gel has extensive clinical applications in both orthopedic and dental medicine: "When we lose teeth due to extensive damage or bacterial infections, the standard treatment is dental implants. Implants, however, must be anchored in a sufficient amount of bone, and when bone loss is too substantial, physicians implant additional bone from a healthy part of the body -- a complex medical procedure. Another option is adding bone substitutes from either human or animal sources, but these might generate an immune response. I hope that in the future the hydrogel we have developed will enable faster, safer, and simpler bone restoration."( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Health :Researchers induced bone regeneration with special hydrogel that mimics bone's natural environment

An innovative technology has been developed to enable bone regeneration to correct large bone defects by means of a ... ...