Journal: BMC oral health
Article Title: Lipid droplet accumulation impairs osseointegration by disturbing the osteogenesis-osteoclasis balance on titanium implant surface in hyperlipidemia.
doi: 10.1186/s12903-025-06218-5
Figure Lengend Snippet: Fig. 8 Oxidative damage induced by lipid droplet accumulation impairs the physiological osteogenesis-osteoclasis balance on titanium surface in hyper lipidemia. ERS and mitochondrial damage induced by lipid droplet accumulation in hyperlipidemia tends to form a vicious cycle network and promotes the expression of inflammatory factors in peri-implant tissues, which further dramatically drives osteoclastogenesis and inhibits osteogenesis on titanium implant surface. After local application of NAC, the ROS level is downregulated, which effectively activates the Wnt/β-catenin signaling pathway and in hibits the RANKL/NF-κB signaling pathway to alleviate the osteogenesis-osteoclasis imbalance, thereby ultimately facilitating the Ti implant osseointegra tion in hyperlipidemia. MDA, malondialdehyde; ROS, reactive oxygen species; ERS, endoplasmic reticulum stress; IL-1β, interleukin-1β; IL-6, interleukin-6; TNF-α, tumor necrosis factor-α; RANKL, receptor activator of nuclear factor-κ B ligand; IM, implant; NAC, N-acetyl-L-cysteine, a ROS antagonist; non-p-β- catenin, non-phospho-β-catenin; DNA, deoxyribonucleic acid; ALP, alkaline phosphatase; OPG, osteoprotegerin; COLI, collagen type I
Article Snippet: Primary antibodies against 8-hydroxy-2 deoxyguanosine (8-OHdG, Santa Cruz Biotechnology, sc-393871, 1:300, USA), non-phospho-β-catenin (non-p-β-catenin, CST, #8814, 1:800, USA), alkaline phosphatase (ALP, HUABIO, ET1601-21, 1:100, China), receptor activator of nuclear factor-κ B ligand (RANKL, Proteintech, 23408-1- AP, 1:300, China), receptor activator of nuclear factor-κ B ligand (RANKL, Santa Cruz Biotechnology, sc-59982, 1:300, USA), nuclear factor-kappa B (NF-κB, Proteintech, 10745-1-AP, 1:300, China), inhibitor of NF-κB (I-κB, Proteintech, 10268-1-AP, 1:300, China), CD11b (Proteintech, 65055-1-Ig, 1:300, China), F4/80 (Santa Cruz Biotechnology, sc-52664, 1:300, USA), Gr-1 (Santa Cruz Biotechnology, sc-53515, 1:300, USA), glucose-regulated protein 78 (GRP78, Proteintech, 11587-1-AP, 1:300, China), perilipin2 (PLIN2, Proteintech, 15294-1-AP, 1:300, China) were applied.
Techniques: Expressing