NADPH alleviates LPS-induced neuropathology and depression-like behaviors by suppressing microglial inflammatory response.

ABSTRACT: Our study investigated the role of nicotinamide adenine dinucleotide phosphate (NADPH) in neuroinflammation-associated depression-like behaviors. Using a lipopolysaccharide (LPS)-induced mouse model of depression, we found that NADPH significantly alleviated depressive-like behaviors, including reduced immobility time and increased sucrose preference. Mechanistic exploration revealed that NADPH suppressed microglial activation, downregulated pro-inflammatory cytokine expression (e.g., IL-1β, TNF-α, IFN-γ), and mitigated oxidative stress in the hippocampus, thereby ameliorating neuroinflammation. Furthermore, NADPH preserved myelin integrity, inhibited microglial phagocytosis of myelin and synapses, and preserved synaptic integrity. These findings provide experimental evidence supporting NA

SUBMITTER: He D 

PROVIDER: S-EPMC12789544 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature