Search for a transmissible agent in Alzheimer's disease: studies of human buffy coat.
Search for a transmissible agent in Alzheimer's disease: studies of human buffy coat.
复制标题
寻找阿尔茨海默病的传播因子:人类血沉棕黄层的研究。
DOI:
10.1007/978-3-642-76540-7_16
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发表时间:
1991
影响因子:
--
通讯作者:
Manuelidis,L
中科院分区:
文献类型:
--
作者:
Manuelidis,EE;Manuelidis,L
The etiology of Alzheimer's disease (AD) is totally unknown, despite the vigorous efforts in several laboratories during recent years to solve this mystery. The lack of success in delineating one or more underlying etiologies for AD may be due to the fact that there are no animal models directly derived from this disease. Further, almost all investigative studies of AD concentrate on end stages of disease where fully developed lesions are apparent. In searching for potential etiologies of AD, such fully developed cases might represent the wrong end of the disease spectrum and be relatively uninformative with respect to original inciting events (EE MANUELIDIS 1985). In autopsy brains of individuals with AD, there is clear evidence of a neuronal cemetery, with neuronal devastation and gliosis in selected brain regions. Tangles and more widespread plaques and amyloid deposits are the remaining skeletons and bushes associated with end stage neuronal degeneration. We have postulated that these very important cardinal lesions are the end result rather than the originating causes of AD. Although these sequelae and their associated biochemical processes may playa role in the progression of AD, the initial inciting events are not known. Without underestimating the value of the data generated by our colleagues on the biochemistry and histology of these lesions, we concentrate, rightly or wrongly, on the concept that a transmissible agent may underlie AD during very early stages of disease. At such early stages, humans may have mild or unrecognized neurological symptoms. Should we prove successful in demonstrating a transmissible agent, our findings would not necessarily be in conflict with the results of our colleagues who have different working hypotheses. In considering of the possibility of a transmissible agent as one etiology of AD, we were greatly influenced by our investigations with Creutzfeldt-Jakob Disease (CJD), a rare dementia of viral etiology (EE MANUELIDIS et al. 1976; 1978a; EE MANUELID1S and L. MANUELIDIS 1989; L. MANUELIDIS and EE MANUELIDIS 1986, 1989). Although the nature of the infectious agent is controversial, infectivity in CJD copurifies with nucleic acid and displays physical properties that are most consistent with a viral structure (AKOWITZ et al. 1990; MURDOCH et al. 1990; SKLAVIADIS et al. 1989, 1990). We felt that events set in motion during the