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Year : 2021  |  Volume : 16  |  Issue : 2  |  Page : 247-253

Hydrogel-based local drug delivery strategies for spinal cord repair

1 School of Biomedical Engineering, Science and Health Systems, Drexel University; Department of Neurosurgery; Department of Bioengineering, University of Pennsylvania; New Jersey Center for Biomaterials, Rutgers – The State University of New Jersey, Piscataway, NJ; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, USA
2 School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA

Correspondence Address:
Yinghui Zhong
School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1673-5374.290882

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Spinal cord injury results in significant loss of motor, sensory, and autonomic functions. Although a wide range of therapeutic agents have been shown to attenuate secondary injury or promote regeneration/repair in animal models of spinal cord injury, clinical translation of these strategies has been limited, in part due to difficulty in safely and effectively achieving therapeutic concentrations in the injured spinal cord tissue. Hydrogel-based drug delivery systems offer unique opportunities to locally deliver drugs to the injured spinal cord with sufficient dose and duration, while avoiding deleterious side effects associated with systemic drug administration. Such local drug delivery systems can be readily fabricated from biocompatible and biodegradable materials. In this review, hydrogel-based strategies for local drug delivery to the injured spinal cord are extensively reviewed, and recommendations are made for implementation.

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