Zinc Ortho Methyl Carbonodithioate Improved Pre and Post-Synapse Memory Impairment via SIRT1/p-JNK Pathway against Scopolamine in Adult Mice

J Neuroimmune Pharmacol. 2023 Jun;18(1-2):183-194. doi: 10.1007/s11481-023-10067-w. Epub 2023 Jun 1.

Abstract

Alzheimer's disease (AD) is globally recognized as a prominent cause of dementia for which efficient treatment is still lacking. New candidate compounds that are biologically potent are regularly tested. We, therefore, hypothesized to study the neuroprotective potential of Zinc Ortho Methyl Carbonodithioate (thereafter called ZOMEC) against Scopolamine (SCOP) induced Alzheimer's disease (AD) model using adult albino mice. We post-administered ZOMEC (30 mg/Kg) into two group of mice for three weeks on daily basis that received either 0.9% saline or SCOP (1 mg/Kg) for initial two weeks. The other two groups of mice received 0.9% saline and SCOP (1 mg/Kg) respectively. After memory related behavioral analysis the brain homogenates were evaluated for the antioxidant potential of ZOMEC and multiple protein markers were examined through western blotting. Our results provide enough evidences that ZOMEC decrease oxidative stress by increasing catalase (CAT) and glutathione S transferase (GST) and decreasing the lipid peroxidation (LPO). The SIRT1 and pre and post synaptic marker proteins, synaptophysin (SYP) as well as post synaptic density protein (PSD-95) expression were also enhanced upon ZOMEC treatment. Furthermore, memory impairment was rescued and ZOMEC appreciably abrogated the Aβ accumulation, BACE1 expression C and the p-JNK pathway. The inflammatory protein markers, NF-kβ and IL-1β in ZOMEC treated mice were also comparable with control group. The predicted interaction of ZOMEC with SIRT1 was further confirmed by molecular docking. These findings thus provide initial reports on efficacy of ZOMEC in SCOP induced AD model.

Keywords: Alzheimer's disease; PSD95; SIRT1; SYP; p-JNK.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alzheimer Disease* / chemically induced
  • Alzheimer Disease* / drug therapy
  • Alzheimer Disease* / metabolism
  • Amyloid Precursor Protein Secretases / metabolism
  • Amyloid Precursor Protein Secretases / therapeutic use
  • Animals
  • Aspartic Acid Endopeptidases / metabolism
  • Aspartic Acid Endopeptidases / therapeutic use
  • MAP Kinase Signaling System
  • Memory Disorders / chemically induced
  • Memory Disorders / drug therapy
  • Memory Disorders / metabolism
  • Mice
  • Molecular Docking Simulation
  • Saline Solution / metabolism
  • Saline Solution / therapeutic use
  • Scopolamine* / metabolism
  • Scopolamine* / toxicity
  • Sirtuin 1 / metabolism
  • Synapses
  • Zinc / metabolism
  • Zinc / therapeutic use

Substances

  • Scopolamine
  • Amyloid Precursor Protein Secretases
  • Zinc
  • Sirtuin 1
  • Saline Solution
  • Aspartic Acid Endopeptidases