In Vivo Study on the Angiogenic Potential of Gellan Gum-Based Hydrogels for Application in Nucleus Pulposus Regeneration

¹3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal; ²ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal; ³Life and Health Science Research Institute (ICVS), School of Health Sciences, University of Minho, Campus de Gualtar, Braga, Portugal