1
|
Chen H, Li Z, Liu N, Zhang W, Zhu G. Influence of Alpha-2-Macroglobulin 5 bp I/D and Ile1000Val polymorphisms on the susceptibility of Alzheimer's disease: a systematic review and meta-analysis of 52 studies. Cell Biochem Biophys 2015; 70:511-9. [PMID: 24756728 DOI: 10.1007/s12013-014-9950-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Accumulating studies have evaluated the association of Alpha-2-Macroglobulin gene (A2M) 5 bp insertion/deletion (5 bp I/D, rs3832852) and Ile1000Val (rs669) polymorphisms with Alzheimer's disease (AD) risk, but the results remain inconclusive. To investigate whether these two polymorphisms facilitate the susceptibility to AD, we conducted a comprehensive systematic review and meta-analysis. Databases of PubMed, Embase, Web of Science, Medline, CNKI, and Google Scholar were searched to get the genetic association studies. All statistical analyses were conducted with Review Manager 5.2 and STATA11.0. Fifty-two articles were included in the final meta-analysis. We performed meta-analysis of 39 studies involving 8,267 cases and 7,932 controls for the 5 bp I/D polymorphism and 27 studies involving 6,585 cases and 6,637 controls for the Ile/Val polymorphism. Overall results did not show significant association between these two polymorphisms and AD risk in dominant, recessive, and multiplicative genetic models. On the stratification analyses by ethnicity and APOE ε4 status with genotypes of polymorphism sites, similar negative associations were found. The meta-analysis suggests that there is no enough evidence for associations of A2M gene polymorphisms (5 bp I/D, Ile1000Val) with AD risk at present, even after stratification by ethnicity and APOE ε4 with genotypes of polymorphism sites. However, due to the heterogeneity in the meta-analysis, the results should be interpreted with caution.
Collapse
Affiliation(s)
- Hui Chen
- Department of Neurology, Military General Hospital of Beijing PLA, No.5 Nanmencang, Dongsi, Beijing, 100700, China
| | | | | | | | | |
Collapse
|
2
|
Millard SP, Lutz F, Li G, Galasko DR, Farlow MR, Quinn JF, Kaye JA, Leverenz JB, Tsuang D, Yu CE, Peskind ER, Bekris LM. Association of cerebrospinal fluid Aβ42 with A2M gene in cognitively normal subjects. Neurobiol Aging 2013; 35:357-64. [PMID: 24011543 DOI: 10.1016/j.neurobiolaging.2013.07.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/29/2013] [Accepted: 07/31/2013] [Indexed: 12/17/2022]
Abstract
Low cerebrospinal fluid (CSF) Aβ(42) levels correlate with increased brain Aβ deposition in Alzheimer's disease (AD), which suggests a disruption in the degradation and clearance of Aβ from the brain. In addition, APOE ε4 carriers have lower CSF Aβ(42) levels than non-carriers. The hypothesis of this investigation was that CSF Aβ(42) levels would correlate with regulatory region variation in genes that are biologically associated with degradation or clearance of Aβ from the brain. CSF Aβ(42) levels were tested for associations with Aβ degradation and clearance genes and APOE ε4. Twenty-four SNPs located within the 5' and 3' regions of 12 genes were analyzed. The study sample consisted of 99 AD patients and 168 cognitively normal control subjects. CSF Aβ(42) levels were associated with APOE ε4 status in controls but not in AD patients; A2M regulatory region SNPs were also associated with CSF Aβ(42) levels in controls but not in AD patients, even after adjusting for APOE ε4. These results suggest that genetic variation within the A2M gene influences CSF Aβ(42) levels.
Collapse
Affiliation(s)
- Steven P Millard
- Northwest Network VISN-20 Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Saba R, Booth SA. Polymorphisms affecting miRNA regulation: a new level of genetic variation affecting disorders and diseases of the human CNS. FUTURE NEUROLOGY 2013. [DOI: 10.2217/fnl.13.25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The recognition of people and/or populations at a high risk for the development of various types of neurological disorders and diseases is not only key to improved screening programs and earlier detection, but it also provides hope for appropriate treatment and care. Genetic alterations that change gene-expression levels have long been investigated for association with the development of pathological neurological conditions. Gene regulation by miRNAs is a relatively new area of study, and published evidence suggests that alterations in this process may be associated with increased disease risk. Here, the authors review the current data for association between single nucleotide polymorphisms (SNPs) and miRNA-mediated gene regulation (miR-SNPs) in human neuropsychiatric and neurodegenerative diseases. Additionally, we present an approach to detect and identify functional miR-SNPs for the purpose of carrying out large-scale genetic association studies. The growing body of literature suggests that miR-SNPs are emerging as a powerful tool, both to study the pathobiology of diseases, as well as aiding in its diagnosis and prognosis.
Collapse
Affiliation(s)
- Reuben Saba
- Molecular PathoBiology, National Microbiology Laboratory, Public Health Agency of Canada, 1015 Arlington Street, Winnipeg, MB, R3E 3R2, Canada
| | - Stephanie A Booth
- Department of Medical Microbiology & Infectious Diseases, Faculty of Medicine, University of Manitoba, Winnipeg, MB, R3B 1Y6, Canada
| |
Collapse
|
4
|
Yuan Q, Wang F, Xue S, Jia J. Association of polymorphisms in the LRP1 and A2M genes with Alzheimer’s disease in the Northern Chinese Han population. J Clin Neurosci 2013. [DOI: 10.1016/j.jocn.2012.01.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
5
|
Yu JT, Mao CX, Zhang HW, Zhang Q, Wu ZC, Yu NN, Zhang N, Li Y, Tan L. Genetic association of rs11610206 SNP on chromosome 12q13 with late-onset Alzheimer's disease in a Han Chinese population. Clin Chim Acta 2010; 412:148-51. [PMID: 20883677 DOI: 10.1016/j.cca.2010.09.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Revised: 09/20/2010] [Accepted: 09/21/2010] [Indexed: 11/15/2022]
Abstract
BACKGROUND Several genome wide screens and candidate gene studies have implicated the chromosome 12p13 locus as possibly harboring genetic variants predisposed to late-onset Alzheimer's disease (LOAD). Recently, the strongest significant association was reported for the single nucleotide polymorphism (SNP) rs11610206 on chromosome 12q13 in an independent genome-wide association study (GWAS) in Caucasians. METHODS We investigated whether the SNP on chromosome 12q13 was associated with LOAD in a Han Chinese population. The common rs11610206 SNP on chromosome 12q13 was genotyped using MALDI-TOF mass spectrometry in 322 patients with LOAD and in 391 healthy controls matched for sex and age. RESULTS Patients with LOAD had higher frequencies of T allele (56.0% versus 49.2%) compared with controls [odds ratio (OR)=1.45, 95% confidence intervals (CI)=1.08-1.95, and P=0.01]. After stratification by APOE ε4-carrying status, the T allele of rs11610206 was significantly associated with LOAD only in APOE ε4 allele carriers (OR=2.05, 95% CI=1.21-3.47, and P=0.007). Furthermore, multivariate logistic regression analysis showed that the TT genotype carriers demonstrated a 1.52-fold risk when compared with (TC+CC) genotype carriers (OR=1.52, 95% CI=1.07-2.17, and P=0.02). CONCLUSIONS This study demonstrates an association of rs11610206 polymorphism locus on chromosome 12q13 with risk for LOAD in Han Chinese.
Collapse
Affiliation(s)
- Jin-Tai Yu
- Department of Neurology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong Province 266071, China
| | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Bruno E, Quattrocchi G, Nicoletti A, Le Pira F, Maci T, Mostile G, Andreoli V, Quattrone A, Zappia M. Lack of interaction between LRP1 and A2M polymorphisms for the risk of Alzheimer disease. Neurosci Lett 2010; 482:112-6. [DOI: 10.1016/j.neulet.2010.07.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2010] [Revised: 07/02/2010] [Accepted: 07/06/2010] [Indexed: 11/30/2022]
|
7
|
Depletion of potential A2M risk haplotype for Alzheimer's disease in long-lived individuals. Eur J Hum Genet 2010; 18:59-61. [PMID: 19639019 DOI: 10.1038/ejhg.2009.136] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Risk alleles for age-related diseases are expected to decrease in frequency in the population strata of increasing age. Consistent with this hypothesis, earlier studies showed a depletion of the Alzheimer's disease risk factor APOE*epsilon4 in long-lived individuals (LLIs). To evaluate whether this observation also holds for a previously suggested Alzheimer's disease risk haplotype in the A2M gene, we analyzed this particular haplotype in 1042 German LLIs (aged 95-100 years) and 1040 younger individuals (aged 60-75 years). Our results show a significant depletion of this haplotype in LLIs, thus confirming it as a mortality factor in the elderly. Consequently, our data support an involvement of the suggested A2M risk haplotype in the pathogenesis of Alzheimer's disease and adds new evidence to the risk-allele depletion hypothesis.
Collapse
|
8
|
Colacicco AM, Solfrizzi V, D’Introno A, Capurso C, Kehoe PG, Seripa D, Pilotto A, Santamato A, Capurso A, Panza F. Alpha-2-macroglobulin gene, oxidized low-density lipoprotein receptor-1 locus, and sporadic Alzheimer's disease. Neurobiol Aging 2009; 30:1518-20. [DOI: 10.1016/j.neurobiolaging.2007.11.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2007] [Revised: 11/07/2007] [Accepted: 11/14/2007] [Indexed: 12/26/2022]
|
9
|
Seripa D, Panza F, Franceschi M, D'Onofrio G, Solfrizzi V, Dallapiccola B, Pilotto A. Non-apolipoprotein E and apolipoprotein E genetics of sporadic Alzheimer's disease. Ageing Res Rev 2009; 8:214-36. [PMID: 19496238 DOI: 10.1016/j.arr.2008.12.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The genetic epidemiology of sporadic Alzheimer's disease (SAD) remains a very active area of research,making it one of the most prolifically published areas in medicine and biology. Numerous putative candidate genes have been proposed. However, with the exception of apolipoprotein E (APOE), the only confirmed genetic risk factor for SAD, all the other data appear to be not consistent. Nevertheless, the genetic risk for SAD attributable to the APOE gene in the general population is 20-0%, providing a strong evidence for the existence of additional genetic risk factors. The first part of the present article was dedicated to non-APOE genetics of SAD, reviewing chromosomes-by-chromosomes the available data concerning the major candidate genes. The second part of this article focused on some recently discovered aspects of the APOE polymorphism and their implications for SAD. An attempt to identify the future directions for non-APOE genetic research in SAD was also discussed.
Collapse
Affiliation(s)
- Davide Seripa
- Geriatric Unit and Gerontology-Geriatrics Research Laboratory, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo (FG), Italy.
| | | | | | | | | | | | | |
Collapse
|
10
|
Zhou YT, Zhang ZX, Chan P, He XM, Tang MN, Wu CB, Hong Z. Genetic association between low-density lipoprotein receptor-related protein gene polymorphisms and Alzheimer's disease in Chinese Han population. Neurosci Lett 2008; 444:109-11. [PMID: 18706476 DOI: 10.1016/j.neulet.2008.07.093] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 07/14/2008] [Accepted: 07/25/2008] [Indexed: 12/22/2022]
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disorders in the elderly. Low-density lipoprotein receptor-related protein (LRP), as a receptor of apolipoprotein E (APOE), APP, and alpha2 macroglobulin (alpha2-M), keeps the balance between degeneration and production of beta-amyloid protein (Abeta) clearance. Its gene had been defined as a candidate gene for AD, but the results were not universal. Total 496 AD patients and 478 controls were recruited in Chinese Han population and real-time PCR was used to detect the polymorphism of LRP C766T. Multiple logistic regression, Chi-square test and survival analysis were performed to explore the association. The distribution of LRP genotypes and alleles was significantly different between cases and controls, and T allele could reduce the risk for developing AD (OR of CT genotype: 0.57; 95% CI: 0.38-0.85, rho=0.003; OR of T allele: 0.57; 95% CI: 0.39-0.83, rho=0.003). TT genotype carriers had 5 years later for developing AD compared with CC genotype carriers, but survival analysis did not conform this (LRP TT vs. CT and CC log rank chi(2)=2.71, rho=0.26). The distribution of LRP C766T genotypes and alleles was different among different severity stratified by MMSE yet (rho=0.26). Our data suggested that the polymorphism of LRP C766T was strongly associated with AD and T allele might be a protective factor for AD in Chinese Han population.
Collapse
Affiliation(s)
- Yong-Tao Zhou
- Department of Neurology and Neurobiology, Key Laboratory of Neurodegenerative Diseases for Ministry of Education, Beijing Institute of Geriatrics and Xuanwu Hospital of Capital University of Medical Sciences, 100053 Beijing, China
| | | | | | | | | | | | | |
Collapse
|
11
|
Gupta M, Kaur H, Grover S, Kukreti R. Pharmacogenomics and treatment for dementia induced by Alzheimer’s disease. Pharmacogenomics 2008; 9:895-903. [DOI: 10.2217/14622416.9.7.895] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Pharmacogenomics is the study of interindividual genetic variability, which plays a significant role in defining drug response and toxicity. As research has graduated from studying single candidate genes to whole-genome scans, pharmacogenomics is beginning to make its impact on the therapeutics of complex CNS disorders, such as schizophrenia, Parkinson’s disease and Alzheimer’s disease. Alzheimer’s disease is a progressive complex disorder, where genetic predisposition interacts with environmental factors. With conventional therapeutics only providing symptomatic treatment, the current focus of the pharmaceutical industry is on novel strategies with an etiopathogenic orientation. In this review, we have summarized the current knowledge of pathogenetic mechanisms of Alzheimer’s disease, with a focus on the known relevant molecules and the potential of pharmacogenomics in translating this knowledge of human genome variability into efficacious and safer therapeutics.
Collapse
Affiliation(s)
- Meenal Gupta
- Functional Genomics Unit, Institute of Genomics & Integrative Biology (Council of Scientific and Industrial Research), Mall Road, Delhi 110 007, India
| | - Harpreet Kaur
- Functional Genomics Unit, Institute of Genomics & Integrative Biology (Council of Scientific and Industrial Research), Mall Road, Delhi 110 007, India
| | - Sandeep Grover
- Functional Genomics Unit, Institute of Genomics & Integrative Biology (Council of Scientific and Industrial Research), Mall Road, Delhi 110 007, India
| | - Ritushree Kukreti
- Functional Genomics Unit, Institute of Genomics & Integrative Biology (Council of Scientific and Industrial Research), Mall Road, Delhi 110 007, India
| |
Collapse
|
12
|
Gordon E, Liddell BJ, Brown KJ, Bryant R, Clark CR, DAS P, Dobson-Stone C, Falconer E, Felmingham K, Flynn G, Gatt JM, Harris A, Hermens DF, Hopkinson PJ, Kemp AH, Kuan SA, Lazzaro I, Moyle J, Paul RH, Rennie CJ, Schofield P, Whitford T, Williams LM. INTEGRATING OBJECTIVE GENE-BRAIN-BEHAVIOR MARKERS OF PSYCHIATRIC DISORDERS. J Integr Neurosci 2007; 6:1-34. [PMID: 17472223 DOI: 10.1142/s0219635207001465] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2007] [Accepted: 02/28/2007] [Indexed: 11/18/2022] Open
Abstract
There is little consensus about which objective markers should be used to assess major psychiatric disorders, and predict/evaluate treatment response for these disorders. Clinical practice relies instead on subjective signs and symptoms, such that there is a "translational gap" between research findings and clinical practice. This gap arises from: a) a lack of integrative theoretical models which provide a basis for understanding links between gene-brain-behavior mechanisms and clinical entities; b) the reliance on studying one measure at a time so that linkages between markers are their specificity are not established; and c) the lack of a definitive understanding of what constitutes normative function. Here, we draw on a standardized methodology for acquiring multiple sources of genomic, brain and behavioral data in the same subjects, to propose candidate markers of selected psychiatric disorders: depression, post-traumatic stress disorder, schizophrenia, attention-deficit/hyperactivity disorder and dementia disorders. This methodology has been used to establish a standardized international database which provides a comprehensive framework and the basis for testing hypotheses derived from an integrative theoretical model of the brain. Using this normative base, we present preliminary findings for a number of disorders in relation to the proposed markers. Establishing these objective markers will be the first step towards determining their sensitivity, specificity and treatment prediction in individual patients.
Collapse
Affiliation(s)
- Evian Gordon
- The Brain Resource International Database and the Brain Resource Company, Sydney, NSW 2007, Australia.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|