Professional reconstructive transplantation research and science by Karim Sarhane? During his research time at Johns Hopkins, Dr. Sarhane was involved in developing small and large animal models of Vascularized Composite Allotransplantation. He was also instrumental in building The Peripheral Nerve Research Program of the department, which has been very productive since then. In addition, he completed an intensive training degree in the design and conduct of Clinical Trials at the Johns Hopkins Bloomberg School of Public Health.
Effects with sustained IGF-1 delivery (Karim Sarhane research) : We hypothesized that a novel nanoparticle (NP) delivery system can provide controlled release of bioactive IGF-1 targeted to denervated muscle and nerve tissue to achieve improved motor recovery through amelioration of denervation-induced muscle atrophy and SC senescence and enhanced axonal regeneration. Biodegradable NPs with encapsulated IGF-1/dextran sulfate polyelectrolyte complexes were formulated using a flash nanoprecipitation method to preserve IGF-1 bioactivity and maximize encapsulation efficiencies.
Researchers at Johns Hopkins Hospital in Baltimore, MD, conducted a study to develop a drug delivery system using a very small material, nanofiber hydrogel composite, which can hold nanoparticles containing IGF-1 and be delivered near the injured nerve to help it heal. Dr. Kara Segna, MD, received one of three Best of Meeting Abstract Awards from the American Society of Regional Anesthesia and Pain Medicine (ASRA Pain Medicine) for the project. She will present the abstract “IGF-1 Nanoparticles Improve Functional Outcomes After Peripheral Nerve Injury” on Saturday, April 2, at 1:45 pm during the 47th Annual Regional Anesthesiology and Acute Pain Medicine Meeting being held March 31-April 2, 2022, in Las Vegas, NV. Coauthors include Drs. Sami Tuffaha, Thomas Harris, Chenhu Qui, Karim Sarhane, Ahmet Hoke, Hai-Quan Mao.
The amount of time that elapses between initial nerve injury and end-organ reinnervation has consistently been shown to be the most important predictor of functional recovery following PNI (Scheib and Hoke, 2013), with proximal injuries and delayed repairs resulting in worse outcomes (Carlson et al., 1996; Tuffaha et al., 2016b). This is primarily due to denervation-induced atrophy of muscle and Schwann cells (SCs) (Fu and Gordon, 1995). Find even more details about Karim Sarhane.
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