Risk factors for the development of stroke was studied in a prospective long-term investigation of 855 male in a random population sampled of the same age. After 13 years of follow-up 25 participants had suffered from stroke, which gives an incidence of 19/10,000 annually. At the 1963 year investigation several parametras were studied. The stroke-prone person had higher values of systolic and diastolic blood pressure and had a significant greater total heart volume. Blood parametras as the fasting of serum cholesterole, triglyceride and erytrocyte sedimentation rate were significantly elevated in those who developed stroke. They also tended to consume more coffee and showed a higher tobacco consumption. By applying the multiple regression model it was disclosed that the most predective risk-variables were diastolic blood pressure, erytrocyte sedimentation rate and smoking habits.
Anticipation describes an inheritance pattern within a pedigree with an increase in disease severity or decrease in age at onset or both in successive generations. The phenomenon of anticipation has recently been shown to be correlated with the expansion of trinucleotide repeat sequences in different disorders. We have studied differences of age at onset and disease severity between two generations in 14 families with unilinear inheritance of bipolar affective disorder (BPAD). There was a significant difference in age at onset (p
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Nineteen parent-offspring pairs obtained from 14 two-generation families with available medical records and diagnosis of schizophrenia were studied to compare the ages of onset of the parent generation with those of the offspring generation. The mean age of onset for the parent generation was 37.3 +/- 6.0 years and for the offspring generation was 20.8 +/- 4.4. The mean difference was thus 16.5 +/- 6.2, suggesting the occurrence of anticipation in schizophrenia (p
Anticipation describes an inheritance pattern within a pedigree with an increase in disease severity and/or decrease in age at onset in successive generations. The phenomenon of anticipation has recently been shown to be correlated with the expansion of trinucleotide repeat sequences in a neuromuscular disease, various neurodegenerative disorders and mental retardation. We have studied parent-offspring differences in age at onset and disease severity in 31 pairs with unilineal inheritance of unipolar affective disorder (UPAD). Life-table analyses showed a significant decrease in survival to 1st episode of major depression in the offspring generation compared with the parental generation (P = 0.0007). There was also a significant difference in age at onset (P
PLO-SL (polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy) is a recessively inherited disorder characterized by systemic bone cysts and progressive presenile frontal-lobe dementia, resulting in death at
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Malfunctioning of cyclin-dependent kinase 5 (CDK5) through aberrant proteolytic cleavage of its neuronal activators p35 and p39 is involved in neurodegeneration in Alzheimer's disease (AD) and other neurodegenerative brain diseases. By extensive genetic analysis of the genes encoding CDK5 (CDK5), p35 (CDK5R1) and p39 (CDK5R2), we excluded causal mutations in 70 familial early-onset AD patients. We performed an association study with five informative SNPs in CDK5 in two independent samples of early-onset AD patients and matched control individuals from The Netherlands and northern Sweden. Association was observed with g.149800G>C in intron 5 of CDK5, and a two times increased risk was observed in both patient samples for carriers of the C-allele. Our data are indicative for a role of the CDK5 molecular complex in the genetic etiology of early-onset AD, and suggest that a yet unknown functional variant in CDK5 or in a nearby gene might lead to increased susceptibility for early-onset AD.
OBJECTIVE--To assess if and how demented patients' living conditions affect their level of functioning. DESIGN--A prospective concurrent control-study. SETTING--Sundsvall, an industrial community in the middle of Sweden. PARTICIPANTS--Forty-six demented patients in group-living (GL-group) and 62 controls (C-group). MAIN OUTCOME MEASURE--Cognitive function, ADL-capacity and behaviour were measured every third month during one year. RESULTS--Both groups deteriorated, but the decline was significantly slower in the GL-group regarding some ADL-functions, e.g. dressing and motor functions, whereas some behavioural disturbances were significantly more frequent in the GL-group. No differences were observed regarding the level of cognitive function. CONCLUSION--The living condition has small effects on cognitive function and ADL-capacity. The behavioural disturbances observed in GL should be the focus of future research.
A study was made on 150 clinically demented patients presenting at autopsy at Umeå University Hospital in Sweden. In 90 of the cases dementia was considered to be primary in nature and of these forty six per cent (41 cases), fulfilled both the clinical and histopathological criteria for the diagnosis of Alzheimer's disease/Senile dementia of Alzheimer type (AD/SDAT). The families of these 41 AD/SDAT cases were then studied, and a family history obtained through interviews with multiple family informants and from civil and medical records. Additional diseased family members suffering from progressive dementia (multiplex families) were observed in 12 probands out of 41 (29%). Multiplex families exhibited similar clinical and histopathological characteristics as simplex families containing a single affected individual. The secondary cases in the multiplex families exhibited similar demographic and clinical characteristics as the probands. 39% of the multiplex and 14% of the simplex cases had an early age of onset of the disease, that was under 65 years. The overall prevalence of progressive dementia disorders in the 41 families was 5.9%. The prevalence of a progressive dementia disorder was 11% in the multiplex families (14% for the early onset cases) and 3.5% in the simplex families (2% for the early onset cases). The prevalence of progressive dementia disorder for family members who had passed the mean age of the onset of the disease for their family, was 45% for multiplex and 18% for simplex families. Furthermore the incidence rate for dementia was significantly higher (p
To examine the effects of Day Care (DC) on demented patients.
A prospective non-randomized concurrent-control study.
55 demented patients in DC and 44 controls.
Sundsvall, an industrial community in northern Sweden.
Cognition, ADL-functions, behaviour and institutionalization.
Measurements of cognition, ADL-functions, and behaviour showed no or only small differences between the groups. After one year, 24% of the patients in the DC-group were institutionalized, compared with 44% of the controls. In the control group, the exhaustion of spouse and supervision need were highly correlated to institutionalization (p