ArticleThe Journal of infectious diseases2024
Toxoplasma gondii Infection of Alzheimer's Disease Mice Reduces Brain Amyloid Density Globally and Regionally.
Article in The Journal of infectious diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Attenuation of Tau Hyperphosphorylation by Chronic Toxoplasma gondii Infection in a Mouse Model of Alzheimer's Disease.Parasite immunology · 2026Article
- Special Issue: Does latent Toxoplasma infection mimic the immune profile of schizophrenia? Sex-specific cytokine and brain-marker alterations suggest partial overlap.Folia parasitologica · 2026Article
- Toxoplasma gondii drives myeloid immune cell recruitment to amyloid plaques in Alzheimer's model mice.Journal of neuroinflammation · 2026Article
- Pathogens Association with Alzheimer Disease: Emerging Concepts and New Perspectives.Current gene therapy · 2026Review
- BFD2 mediates inflammation, apoptosis, and pre-anxiety-like behaviors induced by acute Toxoplasma gondii infection.PLoS neglected tropical diseases · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundToxoplasma gondii infection of Alzheimer's disease model mice decreases amyloid β plaques. We aimed to determine if there is a brain regional difference in amyloid β reduction in the brains of T. gondii-infected compared to control mice.
methodThree-month-old 5xFAD (AD model) mice were injected with T. gondii or with phosphate-buffered saline as a control. Intact brains were harvested at 6 weeks postinfection, optically cleared using iDISCO+, and brain-wide amyloid burden was visualized using volumetric light-sheet imaging. Amyloid signal was quantified across each brain and computationally mapped to the Allen Institute Brain Reference Atlas to determine amyloid density in each region.
resultsA brain-wide analysis of amyloid in control and T. gondii-infected 5xFAD mice revealed that T. gondii infection decreased amyloid burden in the brain globally as well as in the cortex and hippocampus, and many daughter regions. Daughter regions that showed reduced amyloid burden included the prelimbic cortex, visual cortex, and retrosplenial cortex. The olfactory tubercle, a region known to have increased monocytes following T. gondii infection, also showed reduced amyloid after infection.
conclusionsT. gondii infection of AD mice reduces amyloid burden in a brain region-specific manner that overlaps with known regions of T. gondii infection and peripheral immune cell infiltration.
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