Advances in Alzheimer's Disease

Volume 1, Issue 3 (December 2012)

ISSN Print: 2169-2459   ISSN Online: 2169-2467

Google-based Impact Factor: 0.81  Citations  

Certain new aspects of etiology and pathogenesis of Alzheimer’s disease

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DOI: 10.4236/aad.2012.13009    5,342 Downloads   9,892 Views  Citations

ABSTRACT

The research focuses on the possibility of early detection of AD-specific vascular and atrophic brain changes in families which have a tendency to inherit the disease. The research includedthree families with AD inheritance. All patientsunderwent: cognitive function assessment(MMSE),determination of dementia severity(CDR) and AD stages (TDR), computed tomography (CT), magnetic resonance imaging (MRI), scintigraphy of the brain (SG), rheoencephalography (REG), and cerebral multigated angiography (MUGA). All patients with different AD stages, as well as their descendants, have specific atrophic changes in the temporal lobes of the brain. The degree of these changes increases as AD becomes more severe and ranges from 4% - 8% (TDR-0) to 33% - 62% (TDR-3) of the total mass of a healthy person’s temporal lobes. Simultaneously, thepatients examined have changes of microcirculation manifested by reduction of the capillarybed in the temporal and frontalparietal regions,the development of multiple arteriovenousshunts in the same areas, early venous dumping, anomalous expansion of venoustrunks that receive blood from the arterialvenous shunts, venous stasis on the frontoparietal boundary. Similar changes are found among AD patients’ descendants aged 8 - 11, the only difference being in the degree of temporal lobes atrophy which is 4.7%. This proves that microcirculatory disorders are primary and atrophic changes of the temporal lobes are secondary in AD development. The data obtained indicate that the examination of AD patients’ relatives should begin well before the possible manifestations of the disease, even in childhood. It will allow to reveal the possibility of inheritance and the signs of the disease at the earliest possible stage and to begin its treatment in time.

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Maksimovich, I. (2012) Certain new aspects of etiology and pathogenesis of Alzheimer’s disease. Advances in Alzheimer's Disease, 1, 68-76. doi: 10.4236/aad.2012.13009.

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