Introduction to Mouse Pathology

Ward, Jerrold M.; Vogel, Peter; Sundberg, John P.

doi:10.1002/9781119624608.ch1

Cited by 1 publication

(1 citation statement)

References 37 publications

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“…We did not use GFAP IHC to characterize gliosis, an apparently common finding in some strains of aging mouse brain. 10,34,57,59 PAS stains of aging mouse brain have shown common PASpositive granules in the hippocampus and other regions of many mouse strains. 13,26,32,35,57 We confirmed its common occurrence in a few strains.…”

Section: Discussionmentioning

confidence: 99%

Brain and spinal cord lesions in 28 inbred strains of aging mice

2022

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Brain and spinal cord histopathology findings in male and female 20-month-old mice in a large-scale aging study of 28 inbred Jackson Laboratory mouse strains from 7 genetic families are described. Brain sections from selected strains at 12 and 24 months of age or older were also reviewed. Common lesions include axonal dystrophy in the gracile and/or cuneate nucleus in the sensory tract of the dorsal medulla and in the spinal cord in all strains. Hirano-like bodies were seen in 24/28 strains, and mineralization was observed in the thalamus of 9/28 strains. Less common lesions were also seen in the cerebellum, cerebral cortex, and other brain areas. No brain or spinal cord tumors were found. Evidence of an impairment of the ubiquitin-proteasome system (UPS) and/or suspected autophagy was manifested as medullary axonal dystrophy with intra-axonal granular eosinophilic bodies and LC3B immunohistochemistry in most strains. RIIIS/J, the most severely affected strain, showed moderate axonal dystrophy at 12 months, which progressed to severe lesions at 20 months. Comparative pathology in various species is discussed.

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