Blood buffy coat from Alzheimer's disease patients and their relatives does not transmit spongiform encephalopathy to hamsters.

Abstract:

:There was a report of spongiform encephalopathy transmitted to Syrian hamsters by intracerebral inoculation with the blood buffy coat of patients with Alzheimer's disease (AD) and their unaffected first-degree relatives. We attempted to verify that report, taking measures to reduce the risk of contaminating samples with agents causing spongiform encephalopathies. We obtained blood from 50 subjects, including six patients with familial AD, 21 unaffected first-degree relatives (siblings and offspring) of patients with familial AD, and 20 control subjects. We inoculated the buffy coats intracerebrally into Syrian LVG hamsters, observed them for signs of neurologic disease, examined their brains for neuropathologic changes at time of death, and performed serial (blind) passages by inoculating suspensions of all recovered brains into fresh LVG hamsters. We discerned no clinical illness or histopathologic changes resembling experimental spongiform encephalopathy in any hamster inoculated with human buffy coat nor in blind-passage hamsters, nor were the life spans of those hamsters shortened. We conclude that AD is not caused by an agent that transmits spongiform encephalopathy to hamsters.

journal_name

Neurology

journal_title

Neurology

authors

Godec MS,Asher DM,Kozachuk WE,Masters CL,Rubi JU,Payne JA,Rubi-Villa DJ,Wagner EE,Rapoport SI,Schapiro MB

doi

10.1212/wnl.44.6.1111

subject

Has Abstract

pub_date

1994-06-01 00:00:00

pages

1111-5

issue

6

eissn

0028-3878

issn

1526-632X

journal_volume

44

pub_type

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