A ventral approach to stereotaxy of the guinea pig brain

Dudás, Bertalan; Mihály, András; Hanin, Israel

doi:10.1016/s0165-0270(00)00220-x

Cited by 1 publication

(1 citation statement)

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“…A mid-sagittal incision was made and a 5mm craniotomy performed centred over the left parietal cortex (Dudas et al 2000) to facilitate induction of lateral fluid percussion injury (FPI) as previously described (Vink et al 1988). The dura was left intact and a female Leur-loc was placed over the craniotomy and secured with dental cement.…”

Section: Fluid Percussion Injury Studymentioning

confidence: 99%

Aging, cortical injury and Alzheimer's disease-like pathology in the guinea pig brain

Bates

Vink

Martins

et al. 2014

Neurobiology of Aging

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Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized histopathologically by the abnormal deposition of the proteins amyloid-beta (Aβ) and tau. A major issue for AD research is the lack of an animal model that accurately replicates the human disease, thus making it difficult to investigate potential risk factors for AD such as head injury. Furthermore, as age remains the strongest risk factor for most of the AD cases, transgenic models in which mutant human genes are expressed throughout the life span of the animal provide only limited insight into age-related factors in disease development. Guinea pigs (Cavia porcellus) are of interest in AD research because they have a similar Aβ sequence to humans and thus may present a useful non-transgenic animal model of AD. Brains from guinea pigs aged 3-48 months were examined to determine the presence of age-associated AD-like pathology. In addition, fluid percussion-induced brain injury was performed to characterize mechanisms underlying the association between AD risk and head injury. No statistically significant changes were detected in the overall response to aging, although we did observe some region-specific changes. Diffuse deposits of Aβ were found in the hippocampal region of the oldest animals and alterations in amyloid precursor protein processing and tau immunoreactivity were observed with age. Brain injury resulted in a strong and sustained increase in amyloid precursor protein and tau immunoreactivity without Aβ deposition, over 7 days. Guinea pigs may therefore provide a useful model for investigating the influence of environmental and non-genetic risk factors on the pathogenesis of AD.

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Section: Fluid Percussion Injury Studymentioning

confidence: 99%