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21.
Golan MP Melquist S Safranow K Styczyńska M Słowik A Kobryś M Zekanowski C Barcikowska M 《Dementia and geriatric cognitive disorders》2008,25(4):366-371
Late-onset Alzheimer's disease (LOAD) is the most common neurodegenerative disorder, and has a complex etiology. Recently an intronic polymorphism in the ubiquilin 1 gene (UBQLN1) and a particular haplotype was reported to be associated with LOAD. We investigated whether variants in UBQLN1 confer a risk for the disease in 407 Polish LOAD patients and 407 controls. We observed a weak association with the rs2781002 polymorphism, however, contrary to the initial reports, in our group the association was with the A allele. Risk estimation for AA versus GG genotypes showed that the AA genotype is a weak risk factor for AD (OR = 1.8, 95% CI = 1.1-3.1, p = 0.025). This effect was stronger in a group of LOAD patients without APOE4 allele. Haplotype analyses indicate that there is an increase of haplotypes with an A allele in the case group. Also, the specific haplotypes with the A allele that increase AD risk differ between the APOE4-positive and APOE4-negative pools. However, the association observed seems to be driven mostly by rare (<5%) haplotypes. Results suggest a need for additional association studies and in silico analysis of the UBQLN1 locus. 相似文献
22.
Wollmer MA Sleegers K Ingelsson M Zekanowski C Brouwers N Maruszak A Brunner F Huynh KD Kilander L Brundin RM Hedlund M Giedraitis V Glaser A Engelborghs S De Deyn PP Kapaki E Tsolaki M Daniilidou M Molyva D Paraskevas GP Thal DR Barcikowska M Kuznicki J Lannfelt L Van Broeckhoven C Nitsch RM Hock C Papassotiropoulos A 《Neurogenetics》2007,8(3):179-188
Alzheimer’s disease (AD) is a genetically complex disorder, and several genes related to cholesterol metabolism have been
reported to contribute to AD risk. To identify further AD susceptibility genes, we have screened genes that map to chromosomal
regions with high logarithm of the odds scores for AD in full genome scans and are related to cholesterol metabolism. In a
European screening sample of 115 sporadic AD patients and 191 healthy control subjects, we analyzed single nucleotide polymorphisms
in 28 cholesterol-related genes for association with AD. The genes HMGCS2, FDPS, RAFTLIN, ACAD8, NPC2, and ABCG1 were associated with AD at a significance level of P ≤ 0.05 in this sample. Replication trials in five independent European samples detected associations of variants within HMGCS2, FDPS, NPC2, or ABCG1 with AD in some samples (P = 0.05 to P = 0.005). We did not identify a marker that was significantly associated with AD in the pooled sample (n = 2864). Stratification of this sample revealed an APOE-dependent association of HMGCS2 with AD (P = 0.004). We conclude that genetic variants investigated in this study may be associated with a moderate modification of
the risk for AD in some samples.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
23.
Pluta R Barcikowska M Misicka A Lipkowski AW Spisacka S Januszewski S 《Neuroreport》1999,10(17):3615-3619
Brains from patients with Alzheimer's disease contain diffuse and senile amyloid plaques. Using an experimental model, we have addressed the issue whether diffuse plaques of amyloid persist, develop with time, or both, in rats injected with human beta-amyloid-(1-42)-peptide for 3 and 12 mon after brain ischemia. Rats receiving beta-amyloid peptide for 3 months after brain ischemia demonstrated widespread diffuse amyloid plaques in hippocampus and cerebral cortex. Neuronal, glial, ependymal, endothelial and pericyte cell bodies were observed filled with beta-amyloid peptide. No staining was observed in control brains. In the group alive 1 year no deposition of human beta-amyloid peptide was observed, too. Direct evidence that diffuse amyloid plaques can disappear in the brain is thus provided for the first time. 相似文献
24.
Beata Peplonska Krzysztof Safranow Katarzyna Gaweda-Walerych Aleksandra Maruszak Krzysztof Czyzewski Monika Rudzinska Maria Barcikowska Cezary Zekanowski 《Neurobiology of aging》2013
Polymorphic, deoxythymidine-tract in intron 6 of the TOMM40 gene has been associated with Alzheimer's disease. We have investigated the impact of this polymorphism on Parkinson's disease risk and age of onset, independently and in combination with apolipoprotein E alleles, in a group of 407 PD patients and 305 control subjects. No significant association was observed at the single allele, genotype, or haplotype levels. Our data suggest that the polymorphism is not a risk factor for Parkinson's disease in the Polish population. 相似文献
25.
26.
Barcikowska M 《Folia neuropathologica / Association of Polish Neuropathologists and Medical Research Centre, Polish Academy of Sciences》2004,42(4):251-255
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that affects a large proportion of the elderly population. It causes a progressive decline in memory and other cognitive functions. There is no effective treatment of AD despite the great effort in trying to find one. Herein new therapeutic approaches including those closely targeting the pathogenesis of the disease have been discussed. Potential disease modifying treatments that are being considered as future treatment of AD include avaccination, secretase inhibitors, cholesterol lowering drugs, metal chelators and anti- inflammatory agents. According to Evidence Based Dementia Practice, only inhibitors of acetylcholinesterase (AChE) are approved in mild and moderate stages of AD treatment. From the end of 2003, FDA also approved memantine for much severer phases of AD. When all the presented possibilities are taken into account, the most important target for scientists and physicians is not only to find ways for causative cure of AD, but also to be ready for that moment. There is a great need for finding routine biomarkers and sensitive enough clinical tests for diagnosis of AD in which the lasting pathological process does not destroy too many neurones. 相似文献
27.
E. R. Popovitch H. M. Wisniewski M. Barcikowska W. Silverman C. Bancher E. Sersen G. Y. Wen 《Acta neuropathologica》1990,80(4):362-367
Summary We examined the brains of 385 mentally retarded adults aged 23–90 years without Down's syndrome (DS), metabolic disorder, or hydrocephalus to extend our knowledge about the occurrence of Alzheimer-type neuropathology in this population. Relevant measures of neuropathology also were related to selected information available from clinical records. The presence of one or more neurofibrillary tangles (NFT) and/or neuritic plaques (NP) was observed in 63.4% of all cases and varied with age. The prevalence of positive cases was higher when mental retardation was due to head trauma, congenital malformation, or familial factors and when a history of seizures was reported. Comprehensive morphometric analyses of neocortical, hippocampal and parahippocampal areas indicated that recommended agespecific quantitative criteria for the diagnosis of Alzheimer disease [Khachaturian ZS (1985) Arch Neurol 42:1097–1105] were met in 9.5% of cases less than 50 years of age, 54.2% between 50 and 65, 70% between 66 and 75, and 87% of the cases greater than 75 years of age. However, a limited immunohistochemical study revealed that in most cases the NP did not have a neuritic component containing paired helical filaments and in this respect most of the plaques observed in this population may differ from those most strongly associated with Alzheimer disease. In addition, substantial numbers of NFT were seen in frontal cortex, contrasting with results reported in the literature for nonretarded populations. The number of NP per mm2 consistently increased with age for all areas examined, while the relationship between NFT density and age varied across areas, and was clearly not monotonic. Our studies show that the neuropathological lesions currently considered hallmarks of Alzheimer disease are prevalent among non-DS mentally retarded adults, and the regional density of these lesions is high. Thus, while people with DS are affected at an earlier age, clear Alzheimer neuropathology develops in many mentally retarded individuals.Supported in part by funds from the New York State Office of Mental Retardation and Developmental Disabilitics, as well as by Grant No. PO1 HD 22634, awarded to H. Wisniewski by the National Institutes of Health. Maria Barcikowska is a Visiting Scientist from the Department of Neurology, Medical Academy of Warsaw, Poland and Christian Bancher is a Visiting Scientist from the Neurological Institute, University of Vienna, Austria 相似文献
28.
Czyzewski K Lalowski MM Pfeffer A Barcikowska M 《Acta neurobiologiae experimentalis》2001,61(1):21-26
Recently, it was suggested that the presence of total cholesterol (TC), age and sex interaction in Alzheimer's type dementia (AD) is linked with the apolipoprotein E (APOE) genotype. Our objective was to determine whether the serum lipid profile in AD patients and their first degree non-demented relatives of a certain age (NDR) was dependent on APOE genotype. We included 28 mild to moderate AD and 30 NDR according to DSM-III-R and NINCDS-ADRDA criteria. NDR individuals were investigated in an age group similar to the AD group (brother-sister relationship) and in a group including younger individuals (AD patients-children relationship). Our data indicate significant differences between decreased total cholesterol and low density lipoprotein cholesterol ratio in the group of AD patients versus NDR individuals of similar age, independent of APOE genotype, and an increased total cholesterol and low density lipoprotein cholesterol ratio in a group of AD patients versus their children of the same genotype. There was no significant correlation between triglycerides and high density lipoprotein levels with APOE genotype in any of the tested groups. In conclusion, there was a decreased selected lipid serum profile parameters in AD compared to age matched non demented first degree relatives. 相似文献
29.
K Czyzewski A Pfeffer B Wasiak E ?uczywek M Go?ebiowski M Styczyńska M Barcikowska 《Neurologia i neurochirurgia polska》2001,35(3):405-413
In recent years evidence is increasing that vascular disease is associated with cognitive impairment and dementia. Moreover, presence of cerebrovascular disease may intensify the clinical symptoms of Alzheimer's disease (AD). The aim of the study was to determine the prevalence of vascular risk factors in age and sex matched patients with dementia. We studied 109 patients with AD and 37 patients vascular dementia (VD). DSM-III-R test for dementia, NINCDS-ADRDA guidelines for AD and NINDS-ARIEN for VD were applied. RESULTS: Mean age of dementia onset in AD and VD was 65.8 SD 7.8 and 67.4 SD 7.0 years (p > 0.05), the duration of dementia, MMS and GDS for patients with AD and VD was not significantly different. Arterial hypertension was associated in 51.3% VD and 30.3% AD (p < 0.05), hypotension in 11.1 and 23.6% respectively (p > 0.05), atrial fibrillation was similar in AD and VD, coronary artery disease was presents 64.8% AD and 46.8 VD (p > 0.05) and type 2 diabetes in 21.6% and 10.1% (p > 0.05) respectively. No significant differences in serum lipid profile were found in both groups, except two times higher incidence of normal HDL-cholesterol concentration in AD compare to VD. The relation between alcohol consumption, cigarette smoking and head trauma was similar in both types of dementia. CONCLUSION: Vascular disease and AD have to some extent a shared aetiology, and risk factors that they have in common increase the risk of both disorders independently and vascular disease is perhaps involved in the aetiology of AD. 相似文献
30.
P. P. Liberski M. Barcikowska L. Cervenakova J. Bratosiewicz M. Marczewska P. Brown D. C. Gajdusek 《Acta neuropathologica》1998,96(4):425-430
We report here an unusual sporadic case of Creutzfeldt-Jakob disease (CJD) characterized by an abundance of prion protein (PrP)-immunopositive kuru and multicentric but not florid plaques. Molecular genetic analysis of the PRNP open reading frame region spanning codons 8–221 was performed. Neither deletion nor insertion mutations were detected in the repeat area of the PRNP. No pathogenic mutation was found in the sequenced region between codon 108–221. Restriction analysis of the amplified fragment using restriction endonucleases DdeI, PvuII and AluI did not show any of the previously described pathogenic mutations at codon 102, 105, and 117 associated with Gerstmann-Sträussler-Scheinker (GSS). The patient was heterozygous for the methionine/valine coding triplet at polymorphic codon 129 of the PRNP gene by sequence, restriction endonuclease analysis and hybridization with allele-specific nucleotides. Furthermore, hybridization with 32P-labeled allele-specific oligonucleotides confirmed the absence of pathogenic mutations at codons 102, 200 and 178. Such a case may present a missing “link” between sporadic CJD and familial GSS. 相似文献