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- W195244295 abstract "To discuss the value of 11C-PIB PET and 18F-FDG micro PET imaging in Alzheimer's disease (AD) rat model.The AD rat model was established by injection of Abeta1-40 into rat's hippocampus. Learning and memory function were estimated by the Morris water maze. Amyloid deposit and neuron loss were observed by Congo red staining and HE staining respectively. 11C-PIB PET and 18F-FDG micro PET scan were performed. Meanwhile the findings of PET imaging were compared with the results of behavior test and histology.The uptake of 18F-FDG in hippocampus of AD rat model group was lower than that of control group (P < 0.01). The Morris water maze showed that the escape latent period of rat model group was longer than that of control group (P < 0.01). Neuron loss was found in rat model brain. Thus the result of micro-PET imaging was matched with those of the Morris water maze and HE staining. 11C-PIB was specifically bound to beta-amyloid in rat model brain, the uptake of 11C-PIB in AD rat model was higher than that of control (P < 0.05). Abeta deposit was observed in Congo red staining so that the result of 11C-PIB Micro-PET imaging was matched with that of beta-amyloid deposition.11C-PIB Micro-PET imaging shows the plaque deposition while 18F-FDG PET imaging reflects the change of glucose metabolism in hippocampus in AD rat model. And PET scan can be used to verify the successful establishment of AD model rat model." @default.
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- W195244295 date "2010-04-06" @default.
- W195244295 modified "2023-09-26" @default.
- W195244295 title "[Application of positron emission tomography in evaluation of Alzheimer's disease rat model]." @default.
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