AUTHOR=Tian Zhiqiang , Shen Zigang , Chen Hong , Zhao Ping TITLE=Silk fibroin–collagen hydrogel loaded with IGF1-CESCs attenuates intervertebral disk degeneration by accelerating annulus fibrosus healing in rats JOURNAL=Frontiers in Pharmacology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1552174 DOI=10.3389/fphar.2025.1552174 ISSN=1663-9812