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- W3176389770 abstract "Patients with multiple sclerosis (MS) are commonly accompanied by optic neuritis (ON) that causes retinal ganglion cell (RGC) death and even vision loss. Nicotinamide adenine dinucleotide (NAD+) can protect against cell apoptosis and attenuate MS-triggered symptoms. However, the effect of NAD+ on MS-triggered ON remains unclear. Herein, experimental autoimmune encephalomyelitis (EAE) was established by immunizing female C57BL/6 mice with MOG35-55 peptide. To investigate the effect of NAD+ on ON prevention and treatment, EAE mice received 250 mg/kg NAD+ daily via intraperitoneal injection after immunization and EAE onset, respectively. EX-527 (10 mg/kg, SIRT1 inhibitor) was intraperitoneally injected every two days to explore the role of SIRT1 in NAD+-induced therapeutic effect on EAE. NAD+ intervention attenuated the severity of EAE in mice. NAD+ intervention relieved inflammatory infiltration and CD3+ and CD4+ cell infiltration and decreased the number and activation of microglia and astrocytes in the optic nerve. NAD+ intervention also attenuated demyelination, axonal loss, oligodendrocyte apoptosis and oligodendrocyte progenitor cell recruitment and proliferation in the optic nerve and protected against RGC apoptosis in the retina. NAD+ intervention decreased pro-inflammatory cytokine mRNA and pro-apoptotic protein expression and enhanced anti-inflammatory cytokine mRNA expression and the SIRT1 signaling in the optic nerve and retina and regulated the Th1/Th17/Tregs immune response in the spleen. In addition, EX-527 reversed the therapeutic effect of NAD+ on EAE, suggesting that NAD+ prevented MS-triggered ON by activating the SIRT1 signaling pathway. This study shows the potential of NAD+ to be used as a drug in preventing and treating MS-related ON." @default.
- W3176389770 created "2021-07-05" @default.
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- W3176389770 date "2021-09-01" @default.
- W3176389770 modified "2023-10-06" @default.
- W3176389770 title "Protective effect and mechanism of nicotinamide adenine dinucleotide against optic neuritis in mice with experimental autoimmune encephalomyelitis" @default.
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- W3176389770 doi "https://doi.org/10.1016/j.intimp.2021.107846" @default.
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