NLRP3-dependent microglial training impaired the clearance of amyloid-beta and aggravated the cognitive decline in Alzheimer’s disease

Peripheral inflammation aggravated the neurological dysfunction in SAD in a NLRP3-dependent manner

In open field test, time spent in the region of interest (ROI) was significantly decreased in STZ group in Cre− mice compared with that in sham group, it was further decreased in STZ + lipopolysaccharide (LPS) group, whereas increased in STZ + MCC950 group (Fig. 1B). Time spent in the ROI in STZ and STZ + LPS groups was significantly increased in Cre+ mice compared with that in Cre− mice. These results indicated that STZ injection caused anxiety, which was aggravated by peripheral inflammation but attenuated by inhibition or depletion of microglial NLRP3.

Fig. 1: Schematic of the experimental timeline and analysis of behavioral test.
figure1

A Time point of the schematic design. B Analysis of time spending in the central area (Region of interest, ROI) in the open field test. C

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