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Free Content Cerebral Pathology in Immunodeficient Gnotobiotic Laboratory Mice

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Gnotobiotic autoimmunity prone, antigen presentation, T lymphocyte receptor gene knockout mice show cerebral pathology in the form of meningitis, venous blood statis with subarachnoid hemorrhages and massive hemosiderin deposits. A more or less severe hydrocephalus was present in all animals examined. In all cases except the CD1-/- animals, the pineal gland was considerably reduced in mass. Only in the latter strain was a strong pineal hypertrophy in the form of a benign tumor present in ca. 50% of the animals. A possible sequence of events leading to hydrocephalus is discussed. Endogenous vertically transmitted facultative pathogens, active in the immunocompromised animals, probably play a primary etiological role. The results show that caution is needed in planning immunobiological studies on the B10. PL and B10. PL-derived mice, and possibly other strains not examined for possible neuropathological changes.

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Keywords: HEMOSIDERIN; HYDROCEPHALUS; KNOCKOUT MICE BRAIN; MENINGITIS

Document Type: Research Article

Publication date: 2005

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  • Folia biologica is an international quarterly journal that publishes papers on the broad field of experimental zoology, nuclear and chromosome research, and also ultrastructural studies. All papers are subject to peer reviews. Indexed in: ISI Master Journal List, Current Contents, Polish Scientific Journals Contents. I.F. 0.667
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