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Bi W, Lan X, Zhang J, Xiao S, Cheng X, Wang H, Lu D, Zhu L. USP8 ameliorates cognitive and motor impairments via microglial inhibition in a mouse model of sepsis-associated encephalopathy. Brain Res 2019; 1719:40-48. [PMID: 31075263 DOI: 10.1016/j.brainres.2019.05.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/29/2019] [Accepted: 05/06/2019] [Indexed: 02/08/2023]
Abstract
Sepsis-associated encephalopathy (SAE) is a common and serious complication of sepsis, which is thought to be caused by neuroinflammation. In our previous study, ubiquitin-specific protease 8 (USP8), was reported to regulate inflammation in vitro. In the current study, we investigated whether increased USP8 expression would ameliorate the cognitive and motor impairments induced by cecal ligation and puncture (CLP) in mice, a model of SAE. Male adult mice were randomly divided into four groups: control, sham, CLP, and CLP + USP8 groups. The CLP + USP8 mice showed reduced weight loss on day 4 post-CLP, with a slight increase noted on day 7. The mortality rate in the CLP group was 70% 48 h after CLP; however, USP8 significantly improved survival after CLP. USP8 modulated the neurobehavioral scores in CLP mice. Our results also indicate that USP8 attenuated the CLP-induced cognitive and motor impairments, based on the performance of mice in the Morris water maze (MWM), pole-climbing, and wire suspension tests. USP8 suppressed the release of pro-inflammatory mediators, including prostaglandin E2(PGE2) in the serum and nitric oxide (NO) in brain tissue, as well as levels of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) in brain tissue. Immunofluorescence experiments revealed that USP8 inhibited CLP-induced increases in microglial size and density in the hippocampus, and protected hippocampal neurons. Our findings indicate that neuroinflammation occurs in the brains of CLP mice, and that USP8 exerts protective effects against CLP-induced neuroinflammation and cognitive and motor impairments, which may aid in the development of novel therapeutic strategies for SAE.
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Affiliation(s)
- Wei Bi
- Department of Neurology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, PR China
| | - Xin Lan
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou 510632, PR China
| | - JiaWei Zhang
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou 510632, PR China
| | - Shu Xiao
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou 510632, PR China
| | - XiaoFeng Cheng
- Department of Neurology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, PR China
| | - HuaDong Wang
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou 510632, PR China
| | - DaXiang Lu
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou 510632, PR China
| | - Lihong Zhu
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou 510632, PR China.
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2
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Mengel-From J, Rønne ME, Carlsen AL, Skogstrand K, Larsen LA, Tan Q, Christiansen L, Christensen K, Heegaard NHH. Circulating, Cell-Free Micro-RNA Profiles Reflect Discordant Development of Dementia in Monozygotic Twins. J Alzheimers Dis 2019; 63:591-601. [PMID: 29660943 DOI: 10.3233/jad-171163] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We aim to examine if circulating micro-RNA and cytokine levels associate with dementia diagnosis and cognitive scores. To test our hypothesis, we use plasma donated from 48 monozygotic twin pairs in 1997 and 46 micro-RNAs and 10 cytokines were quantified using microfluidic RT-qPCR and multiplex solid-phase immunoassays, respectively. Micro-RNA and cytokine profiling were examined for associations with dementia diagnoses in a longitudinal registry study or with cognitive scores at baseline. Thirty-six micro-RNAs and all cytokines were detected consistently. Micro-RNA profiles associate with diagnoses and cognitive scores at statistically significant levels while cytokine only showed trends pointing at chronic inflammation in twins having or developing dementia. The most notable findings were decreased miR-106a and miR-210, and increased miR-106b expression in twins with a dementia diagnosis. This pioneering evaluation of micro-RNA and cytokine and dementia diagnosis suggests micro-RNA targets in vasculogenesis, lipoprotein transport, and amyloid precursor protein genes.
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Affiliation(s)
- Jonas Mengel-From
- Department of Public Health, The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography Unit, University of Southern Denmark, Odense, Denmark.,Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Mette E Rønne
- Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark
| | - Anting L Carlsen
- Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark
| | - Kristin Skogstrand
- Department of Congenital Disorders, Center for Neonatal Screening, Statens Serum Institut, Copenhagen, Denmark
| | - Lisbeth A Larsen
- Department of Public Health, The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography Unit, University of Southern Denmark, Odense, Denmark
| | - Qihua Tan
- Department of Public Health, The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography Unit, University of Southern Denmark, Odense, Denmark.,Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Lene Christiansen
- Department of Public Health, The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography Unit, University of Southern Denmark, Odense, Denmark
| | - Kaare Christensen
- Department of Public Health, The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography Unit, University of Southern Denmark, Odense, Denmark.,Department of Clinical Genetics, Odense University Hospital, Odense, Denmark.,Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Niels H H Heegaard
- Department of Autoimmunology and Biomarkers, Statens Serum Institut, Copenhagen, Denmark.,Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
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Sumirtanurdin R, Thalib AY, Cantona K, Abdulah R. Effect of genetic polymorphisms on Alzheimer's disease treatment outcomes: an update. Clin Interv Aging 2019; 14:631-642. [PMID: 30992661 PMCID: PMC6445219 DOI: 10.2147/cia.s200109] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Genetic variations in individuals may cause differences in the response to cholinesterase inhibitor drugs used in the treatment of Alzheimer's disease (AD). Through this review, we aimed to understand the potential relationship between genetic polymorphisms and treatment response in AD. We conducted a systematic review of the studies published from 2006 to 2018 that assessed the relationship between genetic polymorphisms and the pharmacotherapeutic outcomes of patients with AD. Via several possible mechanisms, genetic polymorphisms of many genes, including ABCA1, ApoE3, CYP2D6, CHAT, CHRNA7, and ESR1, appear to have strong correlations with the treatment response of patients with AD. Indeed, these genetic polymorphisms, either in the form of single nucleotide polymorphisms or direct changes to one or more amino acids, have been shown to cause differences in the therapeutic response. In summary, our findings indicate that genetic polymorphisms should be considered in the management of AD to achieve both effective and efficient treatment outcomes in terms of cost and prognosis.
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Affiliation(s)
- Riyadi Sumirtanurdin
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Indonesia,
| | - Amirah Y Thalib
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Indonesia,
| | - Kelvin Cantona
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Indonesia,
| | - Rizky Abdulah
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Indonesia, .,Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Jatinangor, Indonesia,
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4
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Zhu B, Chen C, Moyzis RK, Dong Q, Lin C. The Choline Acetyltransferase (CHAT) Gene is Associated with Parahippocampal and Hippocampal Structure and Short-term Memory Span. Neuroscience 2018; 369:261-268. [DOI: 10.1016/j.neuroscience.2017.11.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 10/25/2017] [Accepted: 11/14/2017] [Indexed: 01/11/2023]
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Genetic Association of CHAT rs3810950 and rs2177369 Polymorphisms with the Risk of Alzheimer's Disease: A Meta-Analysis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9418163. [PMID: 27597977 PMCID: PMC5002460 DOI: 10.1155/2016/9418163] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/03/2016] [Accepted: 07/03/2016] [Indexed: 12/28/2022]
Abstract
Choline acetyltransferase (CHAT) rs3810950 and rs2177369 polymorphisms have been implicated in susceptibility to Alzheimer's disease (AD). Due to the inconsistent results from previous studies, a meta-analysis was performed to estimate the association between these polymorphisms and AD risk more precisely. Pooled results of our meta-analysis indicated CHAT rs2177369 polymorphism was correlated with decreasing AD risk in one of five genetic models (dominant: OR = 0.77, 95% CI: 0.62–0.96), while rs3810950 mutant was associated with AD development in three models (allelic: OR = 1.18, 95% CI: 1.01–1.37, homozygous: OR = 1.63, 95% CI: 1.09–2.42, and recessive: OR = 1.65, 95% CI: 1.20–2.26). In subgroup analysis by ethnicity, the association between CHAT rs3810950 polymorphism and AD risk was just found in the recessive model (OR = 1.47, 95% CI: 1.05–2.07) among Caucasians, while four genetic models (allelic: OR = 1.23, 95% CI: 1.01–1.48; homozygous: OR = 2.24, 95% CI: 1.48–3.39; dominant: OR = 1.21, 95% CI: 1.06–1.40; and recessive: OR = 2.18, 95% CI: 1.45–3.29) assumed this association in Asians. In conclusion, our meta-analysis indicated CHAT rs2177369 polymorphism might play a protective role in AD, while rs3810950 variant was a risk factor for AD but its single heterozygous mutations might not influence susceptibility to AD.
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Association of Choline Acetyltransferase Gene Polymorphisms (SNPs rs868750G/A, rs1880676G/A, rs2177369G/A and rs3810950G/A) with Alzheimer's Disease Risk: A Meta-Analysis. PLoS One 2016; 11:e0159022. [PMID: 27390868 PMCID: PMC4938620 DOI: 10.1371/journal.pone.0159022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 06/24/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Epidemiological studies have investigated the role of choline acetyltransferase (ChAT) in Alzheimer's disease (AD). ChAT gene polymorphisms (SNPs rs868750G/A, rs1880676G/A, rs2177369G/A, and rs3810950G/A) may be associated with the risk of AD. In this meta-analysis, we determined the relationship between the four polymorphisms and the risk of AD. METHODS We searched MEDLINE, EMBASE, and HuGEnet databases for studies linking the four polymorphisms with AD risk. We included 16 articles in our meta-analysis to assess the association between the four polymorphisms and susceptibility to AD by calculating the pooled odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS The combined results showed no significant association with rs1880676G/A and rs2177369G/A polymorphisms. The risk of AD (GG+GA versus AA: OR = 0.01, 95%CI = 0.01-0.02, P < 0.05; GG versus GA+AA: OR = 0.85, 95%CI = 0.72-1.00, P = 0.05; GA versus AA: OR = 0.60, 95% CI = 0.37-0.98, P = 0.04) with rs868750G/A polymorphism, or the association of rs3810950G/A polymorphism with AD risk in the overall population (GA versus AA: OR = 0.64, 95% CI = 0.44-0.93, P = 0.02; GG+GA versus AA: OR = 0.62, 95% CI = 0.39-0.97, P = 0.04) or Asian group (GA versus AA: OR = 0.50, 95% CI = 0.32-0.76, P = 0.001, and GG+GA versus AA: OR = 0.46, 95% CI = 0.30-0.09, P = 0.0002) was demonstrated. CONCLUSIONS Our meta-analysis suggested that rs1880670G/A, and rs2177369 G/A polymorphisms were not risk factors for AD. However, rs3810950G/A, or rs868750G/A genetic polymorphism was a genetic risk factor for the development of AD. The rs3810950G/A polymorphism had a negative effect on the risk of AD for GA or GG+GA genotypes compared with AA in the overall population or Asians.
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Liu X, Shi Y, Niu B, Shi Z, Li J, Ma Z, Wang J, Gong P, Zheng A, Zhang F, Gao X, Zhang K. Polymorphic variation in CHAT gene modulates general cognitive ability: An association study with random student cohort. Neurosci Lett 2016; 617:122-6. [PMID: 26854842 DOI: 10.1016/j.neulet.2016.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/18/2015] [Accepted: 02/02/2016] [Indexed: 11/30/2022]
Abstract
The choline O-acetyltransferase (CHAT) gene has been associated with various human disorders that involve cognitive impairment or deficiency. However, the influence of disease-associated variants of CHAT on normal individuals remains dubious. Here we demonstrated the impact of CHAT sequence variants (G-120A) on general human cognitive ability in a cohort of 750 Chinese undergraduate students. A multiple choice questionnaire was used to obtain basic demographic information, such as parents' occupations and education levels. We also administered and scored the Raven's Standard Progressive Matrices (RSPM). A one-way analysis of variance (ANOVA) and Kruskal-Wallis test (K-W) revealed a significant association between sequence polymorphisms of G-120A and individuals' Raven score (p=0.031 for ANOVA and p=0.026 for K-W tests). Moreover, further hierarchical analysis showed a similar trend in the association between G-120A variants and Raven scores only in the female subjects (p=0.008 for ANOVA and p=0.024 for K-W tests) but not in the male subjects. The results of a multiple linear regression confirmed that after we controlled gender, age, birthplace and other non-genetic factors, CHAT G-120A polymorphisms still significantly influenced individual Raven scores (B=-0.70, SE=0.28, t=-2.50, p=0.013). Our results demonstrated that sequence variants of CHAT were associated with human cognitive ability in not only patients with psychiatric disorders but also normal healthy individuals. However, some issues remained indeterminable, such as gender differences and the extent of the influence on individuals' general cognitive abilities; thus, the further research using an independent random sample was required.
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Affiliation(s)
- Xu Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Yuanyu Shi
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Binbin Niu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Zhangyan Shi
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Junlin Li
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Zhe Ma
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Jian Wang
- Department of Applied Psychology, Institute of Applied Psychology, College of Public Management, Northwest University, Xi'an 710069, China
| | - Pingyuan Gong
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China
| | - Anyun Zheng
- Department of Applied Psychology, Institute of Applied Psychology, College of Public Management, Northwest University, Xi'an 710069, China
| | - Fuchang Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China; Department of Applied Psychology, Institute of Applied Psychology, College of Public Management, Northwest University, Xi'an 710069, China
| | - Xiaocai Gao
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China; Department of Applied Psychology, Institute of Applied Psychology, College of Public Management, Northwest University, Xi'an 710069, China.
| | - Kejin Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), Institute of Population and Health, College of Life Science, Northwest University, Xi'an 710069, China.
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Zhou J, Tian G, Wang J, Luo X, Zhang S, Li J, Li L, Xu B, Zhu F, Wang X, Jia C, Zhao W, Zhao D, Xu A. Neural cell injury microenvironment induces neural differentiation of human umbilical cord mesenchymal stem cells. Neural Regen Res 2014; 7:2689-97. [PMID: 25337115 PMCID: PMC4200737 DOI: 10.3969/j.issn.1673-5374.2012.34.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 11/23/2012] [Indexed: 12/31/2022] Open
Abstract
This study aimed to investigate the neural differentiation of human umbilical cord mesenchymal stem cells (hUCMSCs) under the induction of injured neural cells. After in vitro isolation and culture, passage 5 hUCMSCs were used for experimentation. hUCMSCs were co-cultured with normal or Aβ1-40-injured PC12 cells, PC12 cell supernatant or PC12 cell lysate in a Transwell co-culture system. Western blot analysis and flow cytometry results showed that choline acetyltransferase and microtubule-associated protein 2, a specific marker for neural cells, were expressed in hUCMSCs under various culture conditions, and highest expression was observed in the hUCMSCs co-cultured with injured PC12 cells. Choline acetyltransferase and microtubule-associated protein 2 were not expressed in hUCMSCs cultured alone (no treatment). Cell Counting Kit-8 assay results showed that hUCMSCs under co-culture conditions promoted the proliferation of injured PC12 cells. These findings suggest that the microenvironment during neural tissue injury can effectively induce neural cell differentiation of hUCMSCs. These differentiated hUCMSCs likely accelerate the repair of injured neural cells.
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Affiliation(s)
- Jin Zhou
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Guoping Tian
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Jinge Wang
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Xiaoguang Luo
- First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Siyang Zhang
- College of Basic Medical Sciences, China Medical University, Shenyang 110001, Liaoning Province, China
| | - Jianping Li
- Liaoning Provincial Blood Center, Shenyang 110044, Liaoning Province, China
| | - Li Li
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Bing Xu
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Feng Zhu
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Xia Wang
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Chunhong Jia
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Weijin Zhao
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Danyang Zhao
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
| | - Aihua Xu
- Department of Neurology, First People's Hospital of Shenyang, Shenyang 110041, Liaoning Province, China
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Mengel-From J, Thinggaard M, Lindahl-Jacobsen R, McGue M, Christensen K, Christiansen L. CLU genetic variants and cognitive decline among elderly and oldest old. PLoS One 2013; 8:e79105. [PMID: 24244428 PMCID: PMC3828341 DOI: 10.1371/journal.pone.0079105] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 09/18/2013] [Indexed: 01/18/2023] Open
Abstract
The CLU gene is one of the prime genetic candidates associated with Alzheimers disease. In the present study CLU genotypes and haplotypes were associated with baseline cognition and the rate of cognitive decline in two cohorts, the Danish 1905 birth cohort (93 years of age in 1998) and the Longitudinal Study of Aging Danish twins (LSADT) (73-83 year old twins in 1997). Both Mini Mental State Examination (MMSE) and a cognitive composite score was attained up to six times for up to 10 years and analysed using random effects models and vital status. The rs11136000 T allele was associated with better baseline cognitive performance both in the LSADT (effect on intercept: 0.41 95% CI [-0.04; 0.87]) and the 1905 birth cohort (effect on intercept: 0.28 95% CI [0.01; 0.55]), although it did not reach significance in the LSADT cohort. However, the rs11136000 T allele was significantly associated with a steeper decline (effect on slope: -0.06 95% CI [-0.11; -0.01]) in the LSADT cohort, but not in the 1905 birth cohort. Haplotype analyses revealed that carriers of the common rs11136000, rs1532278 and rs9331888 TTC haplotype (36%) in the CLU gene performed cognitively better than non-carriers in the 1905 birth cohort (effect on intercept: 0.50 95% CI [0.12; 0.91]) and carriers of a rare TCC haplotype (1%) performed worse on the cognitive composite score (effect on intercept: -1.51 95% CI [-2.92; -0.06]). The association between the TTC haplotype and better cognitive composite score was higher among those surviving past the age of 98 (p = 0.014), and among these the TTC haplotype was borderline associated with a steep decline (effect on slope: -0.13 95% CI [-0.27; 0.00]). In summery CLU genetic variants associate with cognition in two cohorts, but the genetic effect of CLU seems to regress toward the mean when aging.
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Affiliation(s)
- Jonas Mengel-From
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- * E-mail:
| | - Mikael Thinggaard
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Rune Lindahl-Jacobsen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Matt McGue
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Kaare Christensen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Lene Christiansen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology Unit, Institute of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
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Xu X, Wang Y, Wang L, Liao Q, Chang L, Xu L, Huang Y, Ye H, Xu L, Chen C, Shen X, Zhang F, Ye M, Wang Q, Duan S. Meta-analyses of 8 polymorphisms associated with the risk of the Alzheimer's disease. PLoS One 2013; 8:e73129. [PMID: 24039871 PMCID: PMC3769354 DOI: 10.1371/journal.pone.0073129] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 07/17/2013] [Indexed: 11/18/2022] Open
Abstract
Aims The aim of this study was to evaluate the combined contribution of 8 polymorphisms to the risk of Alzheimer's disease (AD). Methods Through a comprehensive literature search for genetic variants involved in the AD association study, we harvested a total of 6 genes (8 polymorphisms) for the current meta-analyses. These genes consisted of A2M (5bp I/D and V1000I), ABCA2 (rs908832), CHAT (1882G >A, 2384G >A), COMT (Val158Met), HTR6 (267C >T) and LPL (Ser447Ter). Results A total of 33 studies among 9,453 cases and 10,833 controls were retrieved for the meta-analyses of 8 genetic variants. It was showed that A2M V1000I (odd ratio (OR) = 1.26, 95% confidence interval (CI) = 1.07–1.49, P = 0.007), rs908832 allele of ABCA2 (OR = 1.55, 95% CI = 1.12–2.16, P = 0.009), 2384G >A of CHAT (OR = 1.22, 95% CI = 1.00–1.49, P = 0.05) and Ser447Ter of LPL in the Northern-American population (OR = 0.56, 95% CI = 0.35–0.91, P = 0.02) were significantly associated with the risk of AD. No association was found between the rest of the 5 polymorphisms and the risk of AD. Conclusion Our results showed that A2M V1000I polymorphism in German, Korean, Chinese, Spanish, Italian and Polish populations, rs90883 of ABCA2 gene in French, American, Swiss, Greek and Japanese populations, 2384G >A of CHAT gene in British and Korean populations and LPL Ser447Ter in the Northern-American population were associated with the risk of AD.
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Affiliation(s)
- Xuting Xu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Yunliang Wang
- The Neurology Department of the 148th Hospital of PLA, Zibo, Shandong, China
- * E-mail: (QW); (YW); (SD); (MY)
| | - Lingyan Wang
- Bank of Blood Products, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China
| | - Qi Liao
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Lan Chang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Leiting Xu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Yi Huang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Huadan Ye
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Limin Xu
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Cheng Chen
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Xiaowei Shen
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Fuqiang Zhang
- Ningbo Institute of Microcirculation and Henbane, Ningbo, Zhejiang, China
| | - Meng Ye
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- * E-mail: (QW); (YW); (SD); (MY)
| | - Qinwen Wang
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
- * E-mail: (QW); (YW); (SD); (MY)
| | - Shiwei Duan
- Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
- * E-mail: (QW); (YW); (SD); (MY)
| |
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