Fig. 8From: Low-intensity pulsed ultrasound upregulates osteogenesis under inflammatory conditions in periodontal ligament stem cells through unfolded protein responseSchematic diagram of this study. The inflammatory environment triggers ERS of PDLSCs, thereby increasing inflammation and decreasing osteogenesis by enhancing the UPR, while LIPUS can inhibit UPR to reduce inflammation and increase osteogenic differentiationBack to article page