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Clinical and etiological studies on dementia of Alzheimer type and multiinfarct dementia
Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Geriatric Medicine.
1983 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

1. Clinical studies. Clinical diagnosis of dementia has been made largely on the basis of clinical findings supported by appropriate radiological and laboratory investigations. A minority of patients have treatable or reversible underlying causes for their dementing syndrome. It is important to distinguish between the two main forms of dementia Alzheimer's disease, senile dementia of Alzheimer type (AD/SDAT) and MID so that advantage can be taken of any future progress in treatments.

In the clinical study significant differences between several diagnostic procedures were found between patients with AD/SDAT and MID. Blood pressure was significantly lower in the AD/SDAT group and focal neurological signs were seen in 70% of the MID patients but only in 6% of patients with AD/SDAT. Electrocardiogram was normal in all patients with AD/SDAT but pathological in 75% of the MID patients. Electroencephalogram showed generalized slow frequencies in 79% of the AD/SDAT patients and localized changes in 65% of the MID patients. Computerized tomography showed a significantly greater dilation of the ventricular system in MID patients compared to AD/SDAT patients and controls. Monoamine metabolites in the cerebrospinal fluid were lower in AD/SDAT patients and normal in MID patients. Psychopathological signs were found to be more variable and more pronounced in the AD/SDAT group compared with MID patients.

2. Etiological studies. Immunoglobulin and albumin were found changed in serum and CSF of both AD/SDAT and MID, indicating a more active immune response in MID and a less dense cerebrospinal fluid barrier in both MID and AD/SDAT. There appears to be a consumption of IgG in the central nervous system in patients with AD/SDAT.

Abnormal chromosomes appearing as acentric fragments, i.e. without visible centromeres, were found in 90% of patients with AD/SDAT, 30% of patients with MID, and not at all in the control group. Increased aneuploidy was also seen both in patients with MID and AD/SDAT.

Diabetes mellitus in old age and AD/SDAT do not seem to coexist. Furthermore, patients with AD/SDAT have changed carbohydrate metabolism with decreased fasting blood sugar concentrations, increased glucose tolerance and higher concentration of insulin during an oral glucose tolerance test.

Place, publisher, year, edition, pages
Umeå: Umeå universitet , 1983. , p. 49
Series
Umeå University medical dissertations, ISSN 0346-6612 ; 97
Keyword [en]
dementia of Alzheimer type, multiinfarct dementia, clinical studies, diagnosis, blood cerebrospinal fluid barrier function, cytogenetic changes, blood glucose, insulin secretion
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:umu:diva-140995OAI: oai:DiVA.org:umu-140995DiVA, id: diva2:1150889
Projects
digitalisering@umu.se
Note

S. 1-47: sammanfattning, s. 49-144: 5 uppsatser

Available from: 2017-10-20 Created: 2017-10-20 Last updated: 2017-11-07Bibliographically approved

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