Toxoplasma gondiiInfection Potentiates Cognitive Impairments of Alzheimer's Disease in the BALB/c Mice

Autor: Vahid Sheibani, Seyed Reza Mirbadie, S Shojaee, Hossein Mahmoudvand, Naser Ziaali, Alireza Keyhani, Hossein Keshavarz, Khadijeh Esmaeelpour
Rok vydání: 2016
Předmět:
Zdroj: Journal of Parasitology. 102:629-635
ISSN: 1937-2345
0022-3395
DOI: 10.1645/16-28
Popis: This study tests the hypothesis that in chronic Toxoplasma gondii infection communication among immune cells promotes neuroinflammation through cytokine networks and potentiate cognitive impairments in BALB/c mice with Alzheimer's disease (AD). The animal model of Toxoplasma infection was established by the intraperitoneal inoculation of 20–25 tissue cysts from the Tehran strain of T. gondii. We injected amyloid-beta 1–42 peptide (Aβ1–42, 1 and 2 μl) into the hippocampus of BALB/c mice to establish an animal model of AD. The behavioral experiments such as spatial learning and memory were performed using the Morris water maze test. The mRNA levels of TNF-α, IL-1β, IFN-γ, and inducible nitric oxide synthase (iNOS) were examined by real-time PCR. We found that T. gondii infection caused AD-like symptoms and impaired learning and memory functions of the infected BALB/c mice. We also found that in Toxoplasma infection + Aβ1–42 (1 μl) group, T. gondii infection could potentiate AD in infected mice rece...
Databáze: OpenAIRE