Objective: Many people with persistent suboptimal diabetes control also have psychiatric morbidity and social problems which interfere with their ability to self-manage their diabetes. Current models of care in the UK do not integrate these different dimensions of care or address inequalities between physical and mental health. 3DFD (3 Dimensions of Care For Diabetes) integrated medical, psychological, and social care in diabetes for patients with persistent suboptimal glycemic control (HbA1c > 75 mmol/mol) despite guideline-based routine diabetes care, to improve glycemic control, reduce psychological distress, and improve social functioning.
View Article and Find Full Text PDFObjectives: Chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is a serious condition characterized by debilitating but unexplained fatigue. Treatment alternatives are few, and especially so for young people. The aetiology of CFS/ME is still unclear and controversial, but rehabilitative interventions seem so far most promising.
View Article and Find Full Text PDFIt is poorly understood why people with Down syndrome (DS) are at extremely high-risk of developing Alzheimer's disease (AD) compared to the general population. One explanation may be related to their extra copy of risk factors modulated by chromosome 21. Myo-inositol (mI), whose transporter gene is located on chromosome 21, has been associated with dementia in the non-DS population; however, nobody has contrasted brain mI in DS with (DS+) and without (DS-) dementia to other non-DS groups.
View Article and Find Full Text PDFGenetic association studies investigating the association between genes of serotonergic and dopaminergic systems and behavioral and psychological symptoms in dementia (BPSD) are contradictory. We have utilized 1008 probable Alzheimer's disease (AD) patients from the UK and used the 12-item Neuropsychiatric Inventory. We applied a multiple indicators-multiple causes (MIMIC) approach to investigate the effect of 11 polymorphisms on the 4 behavioral subphenotypes "psychosis", "moods", "agitation", and "behavioural dyscontrol".
View Article and Find Full Text PDFBackground: Diabetes mellitus is associated with cognitive dysfunction, but it is not clear whether the disorder increases the risk of conversion from mild cognitive impairment to dementia.
Aims: To determine the association between diabetes mellitus and dementia conversion in people with mild cognitive impairment (Peterson's criteria) in a prospective community-based study.
Method: People over 65 years old were approached through primary care practices in south London, UK, and those with mild cognitive impairment (n = 103) were followed up for 4 years.
Int J Geriatr Psychiatry
January 2010
Objective: To determine the effects of early life education, mid life employment and later life retirement age on the age of onset (AOO) of Alzheimer's disease (AD).
Methods: Multiple regression analyses were carried out using data for 1320 probable AD cases, of which 382 were males with employment and retirement age data, using informant based information on education and employment.
Results: No relation was found between years of education, best qualification obtained, or employment variables in males and the AOO of AD.
Objectives: Previous research investigating the influence of premorbid personality on behavioral and psychological symptoms in dementia (BPSD) has produced mixed findings. Addressing some limitations of previous studies, the authors aimed to investigate whether some of the common individual symptoms of BPSD (depression, anxiety, irritability, and aggression) were associated with key aspects of previous personality (neuroticism and agreeableness); and also to perform an exploratory investigation into the broader influence of personality factors on behavioral and psychological syndromes.
Methods: Two hundred eight patients with a diagnosis of probable Alzheimer disease were assessed for the presence of BPSD over the disease course using the caregiver-rated Neuropsychiatric Inventory (NPI).
Objectives: To investigate behavioral components of Alzheimer's disease (AD) and to analyze behavioral components in relation to disease severity, apolipoprotein E genotype (APOE), sex, years of education, age at onset, and cognitive impairment.
Design: Cross-sectional study.
Setting: Data were collected from community-dwelling individuals and those residing in nursing homes.
Aim: To assess the inter-informant reliability, intra-informant reliability and internal consistency of the NEO-FFI as a measure of premorbid personality in patients with Alzheimer's Disease (AD).
Subjects: One hundred and five persons with NINCDS-ADRDA probable AD for the assessment of inter-informant reliability and internal consistency, and 30 for the assessment of intra-informant reliability.
Methods: Premorbid personality was rated retrospectively by close relatives remembering the patient as he/she had been when aged in his/her forties.
The varepsilon4 allele of the APOE locus is the only confirmed risk factor for late-onset Alzheimer's disease (LOAD). The phosphate and tensin homolog (PTEN) gene is both a biological and positional candidate gene for LOAD. Eight polymorphisms spanning this gene were selected from dbSNP and genotyped in pooled DNA samples of both cases and controls.
View Article and Find Full Text PDFStrong evidence of linkage to late-onset Alzheimer disease (LOAD) has been observed on chromosome 10, which implicates a wide region and at least one disease-susceptibility locus. Although significant associations with several biological candidate genes on chromosome 10 have been reported, these findings have not been consistently replicated, and they remain controversial. We performed a chromosome 10-specific association study with 1,412 gene-based single-nucleotide polymorphisms (SNPs), to identify susceptibility genes for developing LOAD.
View Article and Find Full Text PDFAlzheimer disease (AD) is a complex neurodegenerative disorder predisposed by multiple genetic factors. Mutations in amyloid beta precursor protein (APP) are known to be associated with autosomal dominant, early onset familial AD and possibly also late onset AD (LOAD). A number of genes encoding proteins capable of binding to APP have been identified, but their contribution to AD pathobiology remains unclear.
View Article and Find Full Text PDFAm J Med Genet B Neuropsychiatr Genet
January 2005
Consistent deficits in the cholinergic system are evident in the brains of Alzheimer's Disease (AD) patients, including reductions in the activities of acetylcholine, acetylcholinesterase (AChE), and choline acetyltransferase (ChAT), increased butyrylcholinesterase (BChE) activity, and a selective loss of nicotinic acetylcholine receptors (nAChRs). Accordingly, we have analyzed polymorphisms in the genes encoding AChE, ChAT, BChE, and several of the subunit genes from neuronal nAChRs, for genetic associations with late-onset AD. A significant association for disease was detected for a non-coding polymorphism in ChAT (allele chi(1) (2) = 12.
View Article and Find Full Text PDFAlzheimer's disease (AD) is a disorder without a molecular marker in peripheral tissues or a disease modifying treatment. As increasing evidence has suggested a role for glycogen synthase kinase-3 (GSK-3) in the pathogenesis of the condition we measured total GSK-3 protein (alpha and beta isoforms) and GSK-3 activity (serine 9 phosphorylation) in a group of healthy elderly people, in AD and in mild cognitive impairment (MCI). Total GSK-3 protein was increased in both AD and in MCI without a compensatory decrease in activity.
View Article and Find Full Text PDFThe gene encoding alpha-T-catenin, CTNNA3, is positioned within a region on chromosome 10, showing strong evidence of linkage to Alzheimer's disease (AD), and is therefore a good positional candidate gene for this disorder. We have demonstrated that alpha-T-catenin is expressed in human brain, and like other alpha-catenins, it inhibits Wnt signaling and is therefore also a functional candidate. We initially genotyped two single-nucleotide polymorphisms (SNPs) in the gene, in four independent samples comprising over 1200 cases and controls but failed to detect an association with either SNP.
View Article and Find Full Text PDFConsistent deficits in the cholinergic system are evident in Alzheimer's disease (AD) patients, including selective loss of alpha4beta2 nicotinic acetylcholine receptors in the brains of AD patients. Knockout mice for the beta2 subunit have impaired neuronal survival in ageing. Accordingly, we have analysed polymorphisms in the genes that encode the alpha4 and beta2 subunits, CHRNA4 and CHRNB2 respectively, for genetic associations with late-onset AD.
View Article and Find Full Text PDFThere is substantial evidence for a susceptibility gene for late-onset Alzheimer's disease (AD) on chromosome 10. One of the characteristic features of AD is the degeneration and dysfunction of the cholinergic system. The genes encoding choline acetyltransferase (ChAT) and its vesicular transporter (VAChT), CHAT and SLC18A3 respectively, map to the linked region of chromosome 10 and are therefore both positional and obvious functional candidate genes for late-onset AD.
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