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Related Experiment Video

Updated: Sep 13, 2025

Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
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Syringaldehyde Ameliorates Cognitive Dysfunction in APP/PS1 Mice by Stabilizing the NLRP3 Pathway.

Ruidan Chen1,2, Hua Gao2, Tianshu Zhu1

  • 1Department of Clinical Laboratory, Shandong Provincial Hospital, Shandong University, Jinan , Shandong, 250021, China.

Molecular Neurobiology
|July 25, 2025
PubMed
Summary

Syringaldehyde (SYD) effectively reduced amyloid plaques and improved cognition in Alzheimer's disease (AD) models. SYD combats neuroinflammation and oxidative stress, showing therapeutic potential for AD treatment.

Keywords:
Alzheimer’s diseaseNF-κBNLRP3Oxidative stressSyringaldehyde

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Biochemistry

Background:

  • Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by cognitive decline and amyloid plaque accumulation.
  • Current treatments for AD offer limited efficacy, necessitating the exploration of novel therapeutic agents.

Purpose of the Study:

  • To evaluate the therapeutic efficacy of syringaldehyde (SYD) in a mouse model of Alzheimer's disease (AD).
  • To elucidate the molecular mechanisms underlying SYD's neuroprotective effects.

Main Methods:

  • Network pharmacology, in vivo studies using APPswe/PS1dE9 transgenic mice (treated with SYD), cognitive behavioral tests (Y-maze, Morris water maze, novel object recognition), histopathological analyses (immunofluorescence, H&E, Nissl, Congo red staining).
  • RNA sequencing, transcription factor prediction, and in vitro experiments on HT22 hippocampal neuronal cells (ROS assay, TUNEL assay, qRT-PCR).

Main Results:

  • SYD treatment significantly reduced hippocampal amyloid plaque deposition and improved cognitive functions in APP/PS1 mice.
  • SYD promoted neuronal repair, enhanced resistance to oxidative stress, and alleviated neuronal damage.
  • SYD inhibited the NF-κB/IL-1β/NLRP3 inflammatory pathway, counteracting neuroinflammation.

Conclusions:

  • Syringaldehyde (SYD) demonstrates significant therapeutic potential for ameliorating cognitive impairment and reducing amyloid pathology in Alzheimer's disease.
  • SYD's mechanisms involve reducing neuroinflammation and oxidative stress, supporting its role as a promising AD therapeutic agent.