Time course of prion seeding activity in cerebrospinal fluid of scrapie-infected hamsters after intratongue and intracerebral inoculations.
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ABSTRACT: To assess prospects for early diagnosis of prion disease based on prion seeding activity in cerebrospinal fluid (CSF), we measured the activity over time in scrapie-infected hamsters by real-time quaking-induced conversion (RT-QuIC). After intracerebral inoculation, activity appeared in CSF within 1 day and plateaued weeks before the onset of clinical signs. However, after intratongue inoculation, activity first appeared in CSF with the onset of clinical signs, well after higher-level accumulation of seeding activity in brain.
SUBMITTER: Orru CD
PROVIDER: S-EPMC3318555 | BioStudies | 2012-01-01
SECONDARY ACCESSION(S): K02234
REPOSITORIES: biostudies
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