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Yamada S, Kawano H, Otani T, Ii S, Ito H, Okada K, Iseki C, Tanikawa M, Yoshida K, Watanabe Y, Wada S, Oshima M, Mase M. Higher cerebral blood flow on four-dimensional flow magnetic resonance imaging in young women. Sci Prog 2024; 107:368504241266371. [PMID: 39051513 PMCID: PMC11273549 DOI: 10.1177/00368504241266371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
We investigated the reduction in regional brain volume and cerebral blood flow (CBF) with aging and explored potential sex differences in healthy brains. Three-dimensional (3D) T1-weighted magnetic resonance imaging (MRI), time-of-flight magnetic resonance angiography, and four-dimensional (4D) flow MRI were performed on 129 healthy volunteers aged 22-92 years. The brains of healthy volunteers were segmented into 21 subregions using 3D T1-weighted MRI and CBFs in 16 major intracranial arteries were measured using 4D flow MRI. The cortical gray matter volume decreased linearly with aging, whereas the cerebral white matter volume increased until the 40s and then decreased, and the subcortical gray matter volume changed little with aging. The cortical gray matter volume was significantly associated with the total CBF of the major intracranial arteries distal to the circle of Willis; however, the cerebral white matter and subcortical gray matter volumes were not. Generally, women have higher total CBF than men, particularly in their 40s and younger, despite the smaller intracranial volume and smaller diameters of intracranial arteries than men. This may contribute to the higher incidence of subarachnoid hemorrhage due to cerebral aneurysms and migraine in women.
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Affiliation(s)
- Shigeki Yamada
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Science, Aichi, Japan
- Interfaculty Initiative in Information Studies/Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | - Hiroto Kawano
- Department of Neurosurgery, Shiga University of Medical Science, Shiga, Japan
| | - Tomohiro Otani
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Satoshi Ii
- Faculty of System Design, Tokyo Metropolitan University, Tokyo, Japan
- Department of Mechanical Engineering, School of Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Hirotaka Ito
- Medical System Research & Development Center, FUJIFILM Corporation, Tokyo, Japan
| | - Ko Okada
- Medical System Research & Development Center, FUJIFILM Corporation, Tokyo, Japan
| | - Chifumi Iseki
- Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Yamagata, Japan
| | - Motoki Tanikawa
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Science, Aichi, Japan
| | - Kazumichi Yoshida
- Department of Neurosurgery, Shiga University of Medical Science, Shiga, Japan
| | - Yoshiyuki Watanabe
- Department of Radiology, Shiga University of Medical Science, Shiga, Japan
| | - Shigeo Wada
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Marie Oshima
- Interfaculty Initiative in Information Studies/Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
| | - Mitsuhito Mase
- Department of Neurosurgery, Nagoya City University Graduate School of Medical Science, Aichi, Japan
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Liu Y, Chen S, Zhang E, Xu Y, Deng X, Hu Z, Nie S, Lin Y, Huang Y. Exploring the potential of VGLL3 methylation as a prognostic indicator for intracranial aneurysm with gender-specific considerations. Biosci Rep 2024; 44:BSR20231374. [PMID: 38348744 PMCID: PMC10912501 DOI: 10.1042/bsr20231374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 01/24/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024] Open
Abstract
DNA methylation is widely recognized to play a role in intracranial aneurysm (IA) pathogenesis. We investigated the levels of methylation of vestigial-like 3 (VGLL3) in IA and explored its potential as a prognostic indicator. A total of 48 patients with IA and 48 healthy controls were included in the present study. Methylation levels of CpG sites were assessed using bisulfite pyrosequencing, and levels of VGLL3, TEAD, and YAP in the blood were measured by real-time quantitative polymerase chain reaction testing. VGLL3 methylation was significantly higher in controls than in IA patients (P=0.001), and this phenomenon was more pronounced in females (P<0.001). Compared with the control group, the expression levels of VGLL3 and TEAD in the blood of IA patients were significantly increased, while YAP was significantly decreased. VGLL3 methylation was positively correlated with HDL (P=0.003) and female Lpa concentration (r = 0.426, P=0.03), and was also negatively correlated with age (P=0.003), APOE (P=0.005), and VGLL3 mRNA expression (P<0.001). Methylation and mRNA expression of VGLL3 may serve as indicators of IA risk in females (AUC = 0.810 and 0.809). VGLL3 methylation may participate in the pathogenesis of IA by regulating the expression of the VGLL3/TEAD/YAP pathway, and its gene methylation and expression levels have IA risk prediction value.
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Affiliation(s)
- Yuchun Liu
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
| | - Siqi Chen
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, Zhejiang 315010, China
| | - Enhao Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, Zhejiang 315010, China
| | - Yinbin Xu
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, Zhejiang 315010, China
| | - Xinpeng Deng
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, Zhejiang 315010, China
| | - Ziliang Hu
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, Zhejiang 315010, China
| | - Sheng Nie
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
| | - Yinglu Lin
- Department of Neurology, The Second People’s Hospital of Pingyang County, Wenzhou, Zhejiang 325400, China
| | - Yi Huang
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Laboratory of Neurological Diseases and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, Zhejiang 315010, China
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Snigdha M, Akter A, Amin MA, Islam MZ. Bioinformatics approach to analyse COVID-19 biomarkers accountable for generation of intracranial aneurysm in COVID-19 patients. INFORMATICS IN MEDICINE UNLOCKED 2023; 39:101247. [PMID: 37159621 PMCID: PMC10141791 DOI: 10.1016/j.imu.2023.101247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/17/2023] [Accepted: 04/17/2023] [Indexed: 05/11/2023] Open
Abstract
COVID-19 became a health emergency on January 30, 2020. SARS-CoV-2 is the causative agent of the coronavirus disease known as COVID-19 and can develop cardiometabolic and neurological disorders. Intracranial aneurysm (IA) is considered the most significant reason for hemorrhagic stroke,and it accounts for approximately 85% of all subarachnoid hemorrhages (SAH). Retinoid signaling abnormalities may explain COVID-19's pathogenesis with inhibition of AEH2, from which COVID-19 infection may enhance aneurysm formation and rupture due to abrupt blood pressure changes, endothelial cell injury, and systemic inflammation. The objective of this study was to investigate the potential biomarkers, differentially expressed genes (DEGs), and metabolic pathways associated with both COVID-19 and intracranial aneurysm (IA) using simulation databases like DIsGeNET. The purpose was to confirm prior findings and gain a comprehensive understanding of the underlying mechanisms that contribute to the development of these conditions. We combined the regulated genes to describe intracranial aneurysm formation in COVID-19. To determine DEGs in COVID-19 and IA patient tissues, we compared gene expression transcriptomic datasets from healthy and diseased individuals. There were 41 differentially expressed genes (DEGs) shared by both the COVID-19 and IA datasets (27 up-regulated genes and 14 down-regulated genes). Using protein-protein interaction analysis, we were able to identify hub proteins (C3, NCR1, IL10RA, OXTR, RSAD2, CD38, IL10RB, MX1, IL10, GFAP, IFIT3, XAF1, USP18, OASL, IFI6, EPSTI1, CMPK2, and ISG15), which were not described as key proteins for both COVID-19 and IA before. We also used Gene Ontology analysis (6 significant ontologies were validated), Pathway analysis (the top 20 were validated), TF-Gene interaction analysis, Gene miRNA analysis, and Drug-Protein interaction analysis methods to comprehend the extensive connection between COVID-19 and IA. In Drug-Protein interaction analysis, we have gotten the following three drugs: LLL-3348, CRx139, and AV41 against IL10 which was both common for COVID-19 and IA disease. Our study with different cabalistic methods has showed the interaction between the proteins and pathways with drug analysis which may direct further treatment development for certain diseases.
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Affiliation(s)
- Mahajabin Snigdha
- Department of Pharmacy, Islamic University, Kushtia, 7003, Bangladesh
| | - Azifa Akter
- Department of Pharmacy, Islamic University, Kushtia, 7003, Bangladesh
| | - Md Al Amin
- Department of Computer Science & Engineering, Prime University, Dhaka, 1216, Bangladesh
| | - Md Zahidul Islam
- Department of Information & Communication Technology, Islamic University, Kushtia, 7003, Bangladesh
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Laurent D, Small C, Lucke-Wold B, Dodd WS, Chalouhi N, Hu YC, Hosaka K, Motwani K, Martinez M, Polifka A, Koch M, Busl KM, Maciel CB, Hoh B. Understanding the genetics of intracranial aneurysms: A primer. Clin Neurol Neurosurg 2022; 212:107060. [PMID: 34863053 PMCID: PMC10116189 DOI: 10.1016/j.clineuro.2021.107060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/21/2021] [Indexed: 02/08/2023]
Abstract
The genetics of intracranial aneurysms is complex. Much work has been done looking at the extracellular matrix surrounding cerebral vasculature as well as the role of matrix metalloproteinases. This comprehensive review summarizes what is known to date about the important genetic components that predispose to aneurysm formation and critically discusses the published findings. We discuss promising pre-clinical models of aneurysm formation and subarachnoid hemorrhage, and highlight avenues for future discovery, while considering limitations in the research to date. This review will further serve as a comprehensive reference guide to understand the genetic underpinnings for aneurysm pathophysiology and act as a primer for further investigation.
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Affiliation(s)
- Dimitri Laurent
- Department of Neurosurgery, University of Florida, Gainesville, United States.
| | - Coulter Small
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - William S Dodd
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Nohra Chalouhi
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Yin C Hu
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Koji Hosaka
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Kartik Motwani
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Melanie Martinez
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Adam Polifka
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Matthew Koch
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Katharina M Busl
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Carolina B Maciel
- Department of Neurosurgery, University of Florida, Gainesville, United States
| | - Brian Hoh
- Department of Neurosurgery, University of Florida, Gainesville, United States.
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Kondybayeva AМ, Akimniyazova AN, Kamenova SU, Ivashchenko AТ. THE CHARACTERISTICS OF MIRNA BINDING SITES IN MRNA OF ZFHX3 GENE AND ITS ORTHOLOGS. Vavilovskii Zhurnal Genet Selektsii 2018. [DOI: 10.18699/vj18.380] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Transcription factor gene ZFHX3 is one of the candidate genes involved in stroke development. The ZFHX3 protein contains oligopeptides encoded by trinucleotide repeats (TNRs). TNR variability is considered to be one of the causes of the disease, but their biological function has not yet been established. We assume that TNRs are the binding sites of miRNA to mRNA and are involved in regulation of ZFHX3 gene expression. The characteristics of miRNA–mRNA interaction were determined using MirTarget software. It has been shown that the first TNR in mRNA of the human ZFHX3 gene consists of the seven consecutive miR-12-32603-3p binding encoding polyGlu. The ZFHX3 protein of human polyGlu contains 30 Glu. In the orthologous proteins of 36 animal species the length of polyGlu varied from 27 Glu to 33 Glu. Negatively charged polyGlu of the ZFHX3 transcription factor probably interacted with positive DNA-binding proteins. The following mRNA region of the ZFHX3 gene contained the binding sites for miR-17-39416-3p, miR-5-15733-3p, miR-9-20317-3 encoding polyAla by 15 Ala lengths. In the 33 ZFHX3 orthologous proteins polyAla had the same length. The mRNA region of the human ZFHX3 gene with binding polysite of miR-1322-3p encoded polyGln consisting of 19 Gln. In the 41 orthologs of the ZFHX3 protein the length of polyGln varied from seven Gln to 23 Gln. The binding sites of miR-2-6184-3p, miR-5-14114-5p and miR-19-43437-5p were located with overlapping nucleotides sequences, and encode polyPro. In ZFHX3 human polyPro consisted of 12 Pro. In the orthologs, polyPro contained from 10 Pro to 14 Pro. The binding sites of miR-17-39416-3p, miR-9-20317-3p, miR-1-1819-3p, miR-5-15733-3p, miR-6-17815-3p, miR-18-39953-5p, miR-26862-5p, miR-1260b and miR-X-48174-3p in human ZFHX3 encoded polyGly by 22 Gly length. In the 28 orthologs of ZFHX3 the length of polyGly decreased to 11 Gly. The TNR regions could simultaneously bind several miRNAs, which increased the dependence of gene expression on miRNA. The oligopeptides encoded by the binding polysites of miRNA in mRNA in the orthologous ZFHX3 proteins were flanked by conserved oligopeptides.
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Liu X, Zhan W, Wu Q, Wang F, Yang B, Ou Q. Polymorphism and plasma levels of apolipoprotein E and the risk of aneurysmal subarachnoid hemorrhage in a Chinese population: a case-control study. Lipids Health Dis 2018; 17:115. [PMID: 29769126 PMCID: PMC5956582 DOI: 10.1186/s12944-018-0755-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 04/23/2018] [Indexed: 12/03/2022] Open
Abstract
Background Aneurysmal subarachnoid hemorrhage (aSAH) is the most common types of subarachnoid hemorrhage, which is a critical clinical problem with high morbidity, mortality, and economic impact. Recent studies have shown that APOE was a genetic risk factor of aSAH, however, the studies lack consistent conclusions and the evidence from Chinese Han population is rare. Objective To determine the relationship between APOE polymorphism and the incidence of aSAH in Chinese Fujian Han population and explore the possible mechanism of ApoE in the pathogenesis of aSAH. Methods A total of 131 patients newly diagnosed with aSAH were selected as aSAH group and 137 healthy subjects were selected as the control group. All the samples were analyzed for blood lipids and serum ApoE levels, and ApoE genotype was determined by a commercial chip and further confirmed with Sanger sequencing. An adjusted multivariate logistic regression analysis was carried out to estimate the effects of APOE polymorphism on the risk of aSAH. Results Compared with the controls, the serum TC, HDL-C and ApoA1 levels in aSAH were significantly lower: TC (4.52 ± 1.38 vs. 5.11 ± 0.86 mmol/L, P < 0.001), HDL-C (1.23 ± 0.46 vs. 1.44 ± 0.32 mmol/L, P < 0.001) and ApoA1 (1.20 ± 0.32 vs. 1.38 ± 0.25 g/L, P < 0.001). The distribution of ε2/ε3 genotype (19.08% vs. 9.49%, P = 0.038) and ε2 allele frequency (11.07% vs. 5.84%, P = 0.039) was significantly higher in aSAH than the healthy controls. The multivariate logistic regression identified that ApoE ε2 allele was independently associated with aSAH (OR = 2.083; and 95% CI = 1.045-4.153, P = 0.037). The serum ApoE in aSAH were significantly higher than controls (53.03 ± 24.64 vs. 45.06 ± 12.84 mg/L, P = 0.010). Conclusion APOE polymorphism might be associated with the incidence of aSAH in Chinese Fujian Han population. ApoE ε2 may be a risk factor for the incidence of aSAH, which may be related with the impacts of ApoE genotypes for the serum lipids, especially for the plasma levels of ApoE.
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Affiliation(s)
- Xiaofeng Liu
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China. .,Gene Diagnostic Laboratory, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China.
| | - Weiwu Zhan
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China
| | - Qiumei Wu
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China
| | - Fengqing Wang
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China
| | - Bin Yang
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China.,Gene Diagnostic Laboratory, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China
| | - Qishui Ou
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China. .,Gene Diagnostic Laboratory, the First Affiliated Hospital of Fujian Medical University, No.20 Chazhong Road, Fuzhou, 350005, China.
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Suvatha A, Kandi SM, Bhat DI, Rao N, Vazhayil V, Kasturirangan CG. Apolipoprotein E polymorphism and the risk of aneurysmal subarachnoid hemorrhage in a South Indian population. Cell Mol Biol Lett 2017; 22:25. [PMID: 29213291 PMCID: PMC5708094 DOI: 10.1186/s11658-017-0059-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 11/21/2017] [Indexed: 12/16/2022] Open
Abstract
Background The rupture of a brain aneurysm causes bleeding in the subarachnoid space. This is known as aneurysmal subarachnoid hemorrhage (aSAH). We evaluated the association of apolipoprotein E (APOE) polymorphism and the risk of aSAH in a South Indian population. Methods The study was performed on 200 subjects with aSAH and 253 healthy control subjects. Blood samples (5 ml) were used to isolate DNA and genotyping was performed for rs7412 and rs429358 using a Taqman allelic discrimination assay. Statistical software R.3.0.11 was used to statistically analyze the data and a p value < 0.05 was considered as statistically significant. Results We found a significant association with the risk of aSAH in ε3/ ε4 genetic model (OR = 1.91, 95% CI = 1.16-3.14, p = 0.01). However, in the other genetic models and allele frequency, there was no significant association with the risk of aSAH. In subtyping, we found a significant association of ε2 allele frequency with posterior communicating artery (PCOM) aneurysm (OR = 3.59, 95% CI = 1.11-11.64, p = 0.03). Conclusion Our results suggest that APOE polymorphism has an influence on the risk of aSAH in this South Indian population, specifically in the PCOM subtype.
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Affiliation(s)
- Arati Suvatha
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore, Karnataka 560029 India
| | - Sibin Madathan Kandi
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore, Karnataka 560029 India
| | - Dhananjaya Ishwara Bhat
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029 India
| | - Narasinga Rao
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029 India
| | - Vikas Vazhayil
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore, 560029 India
| | - Chetan Ghati Kasturirangan
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore, Karnataka 560029 India
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Jeon JP, Hong EP, Kim JE, Ha EJ, Cho WS, Son YJ, Bang JS, Oh CW. Genetic Risk Assessment of Elastin Gene Polymorphisms with Intracranial Aneurysm in Koreans. Neurol Med Chir (Tokyo) 2017; 58:17-22. [PMID: 29129841 PMCID: PMC5785693 DOI: 10.2176/nmc.oa.2017-0138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Elastin encoded by elastin gene (ELN) is a crucial extracellular matrix protein responsible for arterial resilience. The objective of this study was to identify single nucleotide polymorphisms (SNPs) of ELN gene susceptible to intracranial aneurysm (IA) in Korean population. Two SNPs of ELN gene, rs2071307 (Gly422Ser) and rs2856728 (intron), were genotyped in 90 patients with IA and 90 age and frequency matched controls. Fisher’s exact test was conducted to evaluate allelic association with IA. Of the two SNPs in ELN gene, T allele of rs2856728 (intron) showed statistically significant association with increased development of IA (odds ratio [OR]: 2.34, 95% confidence interval [CI]: 1.44–3.81, P = 7.6 × 10−4). However, G allele of rs2071307 (Gly422Ser) had no significant association with the development of IA (OR: 1.27, 95% CI: 1.44–3.81, P = 0.607). Interestingly, the odds of having rs2856728 variant was approximately 2-fold higher in males than that in females (OR: 3.46 vs. 1.88, P < 0.05). However, none of SNPs showed difference between single and multiple IA in this study. This preliminary study implies that the rs2856728 variant in ELN gene polymorphisms might play crucial roles in the development and pathogenesis of IA in Korean population.
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Affiliation(s)
- Jin Pyeong Jeon
- Department of Neurosurgery, Hallym University College of Medicine.,Institute of New Frontier Research, Hallym University College of Medicine
| | - Eun Pyo Hong
- Department of Medical Genetics, Hallym University College of Medicine
| | - Jeong Eun Kim
- Department of Neurosurgery, Seoul National University College of Medicine
| | - Eun Jin Ha
- Department of Neurosurgery, Seoul National University College of Medicine
| | - Won-Sang Cho
- Department of Neurosurgery, Seoul National University College of Medicine
| | - Young-Je Son
- Department of Neurosurgery, Seoul National University College of Medicine
| | - Jae Seung Bang
- Department of Neurosurgery, Seoul National University College of Medicine
| | - Chang Wan Oh
- Department of Neurosurgery, Seoul National University College of Medicine
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Paterakis K, Koutsias S, Doxani C, Xanthopoulou P, Kokkali C, Mpoulimari I, Tziastoudi M, Karampelas I, Dardiotis E, Hadjigeorgiou G, Brotis AG, Zintzaras E. Variants of the elastin (ELN) gene and susceptibility to intracranial aneurysm: a synthesis of genetic association studies using a genetic model-free approach. Int J Neurosci 2016; 127:567-572. [DOI: 10.1080/00207454.2016.1212027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Arati S, Sibin MK, Bhat DI, Narasingarao KVL, Chetan GK. Polymorphisms of apolipoprotein E and aneurysmal subarachnoid haemorrhage: A meta-analysis. Meta Gene 2016; 9:151-8. [PMID: 27408823 PMCID: PMC4925774 DOI: 10.1016/j.mgene.2016.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/25/2016] [Accepted: 06/13/2016] [Indexed: 12/21/2022] Open
Abstract
Subarachnoid haemorrhage (SAH) is characterised by bleeding in the subarachnoid space in the brain. There are various polymorphisms in genes which are associated with this disease. We performed a systematic meta- analysis to investigate the relationship of APOE polymorphism on aSAH. A comprehensive literature search was done in the Pubmed database, Science Direct, Cochrane library and Google Scholar. The OR and 95% CI were evaluated for the gene and aSAH association using fixed and random effect models. Publication bias was assessed using Begg's funnel plot and Egger's regression test. All statistical evaluations were done using the software Review Manager 5.0 and Comprehensive Meta Analysis v2.2.023. A total of 9 studies were assessed on APOE polymorphism (1100 Cases, 2732 Control). Meta analysis results showed significant association in ε2/ ε2 versus ε3/ε3, ε2 versus ε3 genetic models and ε2 allele frequency. In subgroup analysis statistically significant association was observed in Asians in the genetic models ε2/ ε2 versus ε3/ε3, ε2/ε3 versus ε3/ε3, ε2 versus ε3 and also in ε2 allele frequency. However, in Caucasian population only ε2/ε2 versus ε3/ε3 genetic model showed significant association between APOE and risk of aSAH. In this meta-analysis study, the ε2/ε2 genotype is associated with increased risk of aSAH.
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Affiliation(s)
- S Arati
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - M K Sibin
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - Dhananjaya I Bhat
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - K V L Narasingarao
- Department of Neurosurgery, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
| | - G K Chetan
- Department of Human Genetics, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India
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Liu H, Mao P, Xie C, Xie W, Wang M, Jiang H. Apolipoprotein E polymorphism and the risk of intracranial aneurysms in a Chinese population. BMC Neurol 2016; 16:14. [PMID: 26830841 PMCID: PMC4734867 DOI: 10.1186/s12883-016-0537-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 01/19/2016] [Indexed: 11/13/2022] Open
Abstract
Background The relationship between the apolipoprotein E (APOE) polymorphism and intracranial aneurysms has previously only been studied in Russia and Japan but not in Chinese populations. The purpose of this study was to investigate the association between APOE polymorphism and the risk of intracranial aneurysms in a Chinese population. Methods The study population consisted of 150 intracranial aneurysms patients and 150 matched control subjects. The APOE gene polymorphism was analyzed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Results Patients with intracranial aneurysms had a significantly higher frequency of APOE E2/E2 genotype [odds ratio (OR) =9.51, 95 % confidence interval (CI) = 1.19, 76.04; P = 0.03] and APOE E2/E3 genotype (OR = 1.87, 95 % CI = 1.03, 3.40; P = 0.04) than healthy controls. The APOE E4/E4 genotype frequencies (OR = 0.09, 95 % CI = 0.01, 0.74; P = 0.03) in the intracranial aneurysms group were significantly lower than those in the controls group. When stratified by the site, shape, size and the Fisher Grade of intracranial aneurysms, no statistically significant result was observed. Conclusion Our study suggested that APOE polymorphism might be associated with intracranial aneurysms in Chinese population. Additional studies are needed to confirm this finding.
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Affiliation(s)
- Hao Liu
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, West Yanta Road No.277, Xi'an, 710061, China
| | - Ping Mao
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, West Yanta Road No.277, Xi'an, 710061, China
| | - Changhou Xie
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, West Yanta Road No.277, Xi'an, 710061, China
| | - Wanfu Xie
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, West Yanta Road No.277, Xi'an, 710061, China
| | - Maode Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, West Yanta Road No.277, Xi'an, 710061, China
| | - Haitao Jiang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiao Tong University, West Yanta Road No.277, Xi'an, 710061, China.
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Hussain S, Barbarite E, Chaudhry NS, Gupta K, Dellarole A, Peterson EC, Elhammady MS. Search for Biomarkers of Intracranial Aneurysms: A Systematic Review. World Neurosurg 2015; 84:1473-83. [DOI: 10.1016/j.wneu.2015.06.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 11/16/2022]
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Wang Y, Emeto TI, Lee J, Marshman L, Moran C, Seto S, Golledge J. Mouse models of intracranial aneurysm. Brain Pathol 2015; 25:237-47. [PMID: 25041057 PMCID: PMC8029187 DOI: 10.1111/bpa.12175] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 07/09/2014] [Indexed: 01/04/2023] Open
Abstract
Subarachnoid hemorrhage secondary to rupture of an intracranial aneurysm is a highly lethal medical condition. Current management strategies for unruptured intracranial aneurysms involve radiological surveillance and neurosurgical or endovascular interventions. There is no pharmacological treatment available to decrease the risk of aneurysm rupture and subsequent subarachnoid hemorrhage. There is growing interest in the pathogenesis of intracranial aneurysm focused on the development of drug therapies to decrease the incidence of aneurysm rupture. The study of rodent models of intracranial aneurysms has the potential to improve our understanding of intracranial aneurysm development and progression. This review summarizes current mouse models of intact and ruptured intracranial aneurysms and discusses the relevance of these models to human intracranial aneurysms. The article also reviews the importance of these models in investigating the molecular mechanisms involved in the disease. Finally, potential pharmaceutical targets for intracranial aneurysm suggested by previous studies are discussed. Examples of potential drug targets include matrix metalloproteinases, stromal cell-derived factor-1, tumor necrosis factor-α, the renin-angiotensin system and the β-estrogen receptor. An agreed clear, precise and reproducible definition of what constitutes an aneurysm in the models would assist in their use to better understand the pathology of intracranial aneurysm and applying findings to patients.
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Affiliation(s)
- Yutang Wang
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
| | - Theophilus I. Emeto
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
- Discipline of Public Health and Tropical MedicineSchool of Public HealthTropical Medicine and Rehabilitation SciencesJames Cook UniversityTownsvilleQueenslandAustralia
| | - James Lee
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
- Department of NeurosurgeryThe Townsville HospitalTownsvilleQueenslandAustralia
| | - Laurence Marshman
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
- Department of NeurosurgeryThe Townsville HospitalTownsvilleQueenslandAustralia
| | - Corey Moran
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
| | - Sai‐wang Seto
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
| | - Jonathan Golledge
- The Vascular Biology UnitQueensland Research Centre for Peripheral Vascular DiseaseSchool of Medicine and DentistryJames Cook UniversityTownsvilleQueenslandAustralia
- Department of Vascular and Endovascular SurgeryThe Townsville HospitalTownsvilleQueenslandAustralia
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Li P, Zhang Q, Wu X, Yang X, Zhang Y, Li Y, Jiang F. Circulating microRNAs serve as novel biological markers for intracranial aneurysms. J Am Heart Assoc 2014; 3:e000972. [PMID: 25249297 PMCID: PMC4323791 DOI: 10.1161/jaha.114.000972] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background Biological markers that can be used to predict the risk of intracranial aneurysms (IAs) are not available. Methods and Results To clarify whether circulating microRNAs could be used as biomarkers for IA, we carried out microarray assays in a screening cohort of 40 IA patients (20 unruptured and 20 ruptured) and 20 healthy volunteers. We identified 20 microRNAs that were unanimously changed in both ruptured and unruptured patients. We confirmed 60% of these changed microRNAs by a separate microarray test with an independent validation cohort (n=143 including 93 IA patients). To identify potential biomarkers, we combined the 2 cohorts and performed quantitative real‐time polymerase chain reactions for selected target microRNAs. Logistic regression analysis demonstrated that miR‐16 and miR‐25 were independent factors for IA occurrence (P<0.001). After controlling for age, sex, smoking, and history of hypertension, the contributions of miR‐16 and miR‐25 were still highly significant (P<0.001). The adjusted odds ratio values for miR‐16 and miR‐25 were 1.52 (95% CI 1.31 to 1.77) and 1.53 (1.30 to 1.79). Combining both miR‐16 and miR‐25 in a single model did not improve the performance of risk association. Conclusions Our data suggest that circulating miRNAs may be novel biological markers that are useful in assessing the likelihood of IA occurrence.
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Affiliation(s)
- Pengxiang Li
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, Shandong University, Jinan, Shandong Province, China (P.L., Q.Z., X.W., Y.Z., F.J.) Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (P.L., X.Y., Y.L.)
| | - Qunye Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, Shandong University, Jinan, Shandong Province, China (P.L., Q.Z., X.W., Y.Z., F.J.)
| | - Xiao Wu
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, Shandong University, Jinan, Shandong Province, China (P.L., Q.Z., X.W., Y.Z., F.J.)
| | - Xinjian Yang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (P.L., X.Y., Y.L.)
| | - Yun Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, Shandong University, Jinan, Shandong Province, China (P.L., Q.Z., X.W., Y.Z., F.J.)
| | - Youxiang Li
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (P.L., X.Y., Y.L.)
| | - Fan Jiang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital, Shandong University, Jinan, Shandong Province, China (P.L., Q.Z., X.W., Y.Z., F.J.)
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Kataoka H, Aoki T. Molecular basis for the development of intracranial aneurysm. Expert Rev Neurother 2014. [DOI: 10.1586/ern.09.155] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yang S, Wang T, You C, Liu W, Zhao K, Sun H, Mao B, Li X, Xiao A, Mao X, Zhang H. Association of polymorphisms in the elastin gene with sporadic ruptured intracranial aneurysms and unruptured intracranial aneurysms in Chinese patients. Int J Neurosci 2013; 123:454-8. [DOI: 10.3109/00207454.2013.763803] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Association of APOE polymorphism with the change of brain function in the early stage of aneurysmal subarachnoid hemorrhage. ACTA NEUROCHIRURGICA. SUPPLEMENT 2011. [PMID: 21116912 DOI: 10.1007/978-3-7091-0353-1_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Recent studies have indicated that early brain injury may be responsible for the detrimental effects seen in patients after subarachnoid hemorrhage (SAH). In this study, we investigated the relationship between apolipoprotein E gene (APOE) polymorphism and the change of brain function in the early stage of aneurysmal SAH. A total of 79 patients admitted within 5 days after aneurysmal SAH were recruited in the study. Patient characteristics, such as age, gender, Fisher and Hunt-Hess grade were collected when admitted. Electroencephalogram (EEG) was recorded on admission and at 3-5 days after onset to assess the change of brain function of the patients in acute stage of SAH. The result of the second EEG recording was defined as EEG deterioration if the decrease in alpha wave frequency, increase in slow wave or decline in amplitude were observed when compared with the first EEG recording. The APOE polymorphism was determined in all patients by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Ten of 17 patients with APOEε4 (58.8%) showed the deteriorated EEGs, which was significantly different from those without APOEε4 (18 of 62 patients, 29.0%, p=0.023). However, neither the presence of ε2 nor of ε3 was significantly different from those absent of it (p>0.05). Univariate logistic regression analyses showed that both high Fisher grade (p=0.028, OR=2.917, 95% CI=1.124-7.572) and APOEε4 (p=0.027, OR=3.492, 95% CI=1.150-10.604) were risk factors to EEG aggravation after aneurysmal SAH. The association of APOEε4 for deteriorated EEG was more significant after adjustment for age, gender, Hunt-Hess grade on admission, and Fisher grade (p=0.007, OR=5.741, 95% CI=1.625-20.280). Our findings suggest that APOEε4 allele is a risk factor to brain function aggravation in the early stage of aneurysmal SAH, and it may contribute to early brain injury after SAH.
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Impact of LIMK1, MMP2 and TNF-α variations for intracranial aneurysm in Japanese population. J Hum Genet 2011; 56:211-6. [PMID: 21228795 DOI: 10.1038/jhg.2010.169] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Genetic factors are known to have an important role in intracranial aneurysm (IA) pathogenesis. The purpose of this study is to identify single-nucleotide polymorphisms (SNPs) that are associated with IA in Japanese population. A total of 2050 IA patients and 1835 controls recruited in Biobank Japan, The University of Tokyo were used in this study. In all, 45 SNPs in 24 genes encoding proteins, which have been considered to be possible risk factors to IA pathogenesis, were genotyped using multiplex PCR-invader assay. Association analysis was evaluated by logistic regression analysis before and after adjustment of age, smoking and hypertension status. This case-control association study revealed a SNP, rs6460071 located on LIMK1 gene (P = 0.00069) to be significantly associated with increased risk of IA. In addition, two SNPs, rs243847 (P = 0.00086) and rs243865 (P = 0.00090), on matrix metallopeptidase 2 (MMP2) gene and one SNP rs1799724 (P = 0.0026) on tumor necrosis factor-α (TNF-α) gene, are marginally associated with IA in male- and female-specific manner, respectively. In conclusion, a large-scale case-control association study was conducted to verify genetic variations associated with IA in Japanese population. This study gave insights on the importance of stratified analysis between genders, and suggested that the underlying mechanism of IA pathogenesis might differ between females and males.
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Ruigrok Y, Klijn CJ. Genetics of Aneurysms and Arteriovenous Malformations. Stroke 2011. [DOI: 10.1016/b978-1-4160-5478-8.10066-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Genetic dissection of diseases is one of the epoch-making achievements in modern medicine. Positional cloning is a key method to isolate disease-related genes. For positional cloning, there are two conventional methods: family-based studies and case-control studies. In this review, I would like to describe several family-based studies on single gene diseases which I had conducted including those of Akita diabetic mice, systemic carnitine deficiency and Hartnup disease. The study of systemic carnitine deficiency underscored a potential power of the "Carrier state." Furthermore, cultural and public health practices in Japan such as preservation of umbilical cords and mother and child passbooks enabled us to conduct linkage analysis even 20 years after the deaths of affected patients in Hartnup disease. For multifactorial diseases, I present three family-based studies: intracranial aneurysm, moyamoya and arteriovenous malformation. Finally, I discuss on theoretical issues concerning the relationship among odds ratio, phenocopy rate and penetrance by formulating a single-locus dominant association model. Analysis of the model predicted a notion that a large odds ratio facilitates familial clustering of multifactorial diseases and vice versa is the case. Furthermore, the analysis predicted that genetic markers for screening should have odds ratio >/= eight to maintain similar qualities commonly required for clinical tests. Collectively, the analysis predicted a two-stage study design composed of linkage analysis based on a family study and subsequent replication by a case-control association study is more rational than the currently used two-independent case-control design. This newly proposed method is expected to provide polymorphisms, which have large odds ratios, requiring only minimum research budgets.
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Affiliation(s)
- Akio Koizumi
- Department of Health and Environmental Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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21
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Abstract
Intracranial aneurysms (IAs) are the dilatations of blood vessels in the brain and pose potential risk of rupture leading to subarachnoid hemorrhage. Although the genetic basis of IAs is poorly understood, it is well-known that genetic factors play an important part in the pathogenesis of IAs. Therefore, the identifying susceptible genetic variants might lead to the understanding of the mechanism of formation and rupture of IAs and might also lead to the development of a pharmacological therapy. To elucidate the molecular pathogenesis of diseases has become a crucial step in the development of new treatment strategies. Although extensive genetic research and its potential implications for future prevention of this often fatal condition are urgently needed, efforts to elucidate the susceptibility loci of IAs are hindered by the issues bewildering the most common and complex genetic disorders, such as low penetrance, late onset, and uncertain modes of inheritance. These efforts are further complicated by the fact that many IA lesions remain asymptomatic or go undiagnosed. In this review, we present and discuss the current status of genetic studies of IAs and we recommend comprehensive genome-wide association studies to identify genetic loci that underlie this complex disease.
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Affiliation(s)
- Jun Zhang
- Department of Neurosurgery, The University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Richard E. Claterbuck
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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Foroud T, Sauerbeck L, Brown R, Anderson C, Woo D, Kleindorfer D, Flaherty ML, Deka R, Hornung R, Meissner I, Bailey-Wilson JE, Rouleau G, Connolly ES, Lai D, Koller DL, Huston J, Broderick JP. Genome screen to detect linkage to intracranial aneurysm susceptibility genes: the Familial Intracranial Aneurysm (FIA) study. Stroke 2008; 39:1434-40. [PMID: 18323491 DOI: 10.1161/strokeaha.107.502930] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Evidence supports a substantial genetic contribution to the risk of intracranial aneurysm (IA). The purpose of this study was to identify chromosomal regions likely to harbor genes that contribute to the risk of IA. METHODS Multiplex families having at least 2 individuals with "definite" or "probable" IA were ascertained through an international consortium. First-degree relatives of individuals with IA who were at increased risk of an IA because of a history of hypertension or present smoking were offered cerebral magnetic resonance angiography. A genome screen was completed using the Illumina 6K SNP system, and the resulting data from 192 families, containing 1155 genotyped individuals, were analyzed. Narrow and broad disease definitions were used when testing for linkage using multipoint model-independent methods. Ordered subset analysis was performed to test for a gene x smoking (pack-years) interaction. RESULTS The greatest evidence of linkage was found on chromosomes 4 (LOD=2.5; 156 cM), 7 (LOD=1.7; 183 cM), 8 (LOD=1.9; 70 cM), and 12 (LOD=1.6; 102 cM) using the broad disease definition. Using the average pack-years for the affected individuals in each family, the genes on chromosomes 4 (LOD=3.5; P=0.03), 7 (LOD=4.1; P=0.01) and 12 (LOD=3.6; P=0.02) all appear to be modulated by the degree of smoking in the affected members of the family. On chromosome 8, inclusion of smoking as a covariate did not significantly strengthen the linkage evidence, suggesting no interaction between the loci in this region and smoking. CONCLUSIONS We have detected possible evidence of linkage to 4 chromosomal regions. There is potential evidence for a gene x smoking interaction with 3 of the loci.
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Affiliation(s)
- Tatiana Foroud
- Indiana University School of Medicine, Health Information and Translational Sciences Building - HS 4000, 410 West 10th Street, Indianapolis, IN 46202-3002, USA.
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Affiliation(s)
- Ynte M. Ruigrok
- From the University Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Centre, Utrecht, The Netherlands
| | - Gabriel J.E. Rinkel
- From the University Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Centre, Utrecht, The Netherlands
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Mineharu Y, Inoue K, Inoue S, Kikuchi K, Ohishi H, Nozaki K, Hashimoto N, Koizumi A. Association analyses confirming a susceptibility locus for intracranial aneurysm at chromosome 14q23. J Hum Genet 2008; 53:325-332. [PMID: 18259683 DOI: 10.1007/s10038-008-0255-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2007] [Accepted: 01/15/2008] [Indexed: 12/01/2022]
Abstract
Previous linkage analyses of intracranial aneurysm (IA) have proposed several genetic susceptibility loci; however, some loci remain contradictory. The objective of this study was to confirm these loci in a Japanese population using allelic and haplotype association analyses. We set high-density single nucleotide polymorphism markers in previously suggested IA loci and conducted an association analysis in 29 cases and 35 controls from a small community in Akita, Japan. Genotyping was carried out using the GeneChip 10 K mapping array, and the association analysis was performed using GeneSpring GT2 software. The result was confirmed in a replication cohort consisting of 237 cases and 253 controls from all over Japan. Only one variant, rs767603, at chromosome 14q23, was significantly associated with IA, both in allelic analysis (p=0.00017, Bonferroni-corrected p=0.021) and haplotype analysis (p=0.00178, Bonferroni-corrected p=0.048). This association was confirmed in the replication cohort (p=0.0046 for allelic association, p=0.0060 for haplotype association). Our findings confirm 14q23 to be a susceptibility locus for intracranial aneurysm.
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Affiliation(s)
- Yohei Mineharu
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Health and Environmental Sciences, Kyoto University Graduate School of Medicine, Konoe-cho, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kayoko Inoue
- Department of Health and Environmental Sciences, Kyoto University Graduate School of Medicine, Konoe-cho, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Sumiko Inoue
- Department of Health and Environmental Sciences, Kyoto University Graduate School of Medicine, Konoe-cho, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kenji Kikuchi
- Department of Neurosurgery, Yuri Kumiai General Hospital, Akita, Japan
| | - Hikaru Ohishi
- Department of Neurosurgery, Senboku Kumiai General Hospital, Akita, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Nobuo Hashimoto
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akio Koizumi
- Department of Health and Environmental Sciences, Kyoto University Graduate School of Medicine, Konoe-cho, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan.
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Slowik A, Dziedzic T, Pera J, Wloch D, Kopec G, Szczudlik A. ACE genotype, risk and causal relationship to stroke: Implications for treatment. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2007; 9:198-204. [PMID: 17601383 DOI: 10.1007/s11936-007-0013-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The angiotensin-converting enzyme (ACE) catalyzes the formation of angiotensin II and the breakdown of bradykinin into inactive products. The insertion/deletion (I/D) polymorphism affects the activity of the enzyme, with the DD genotype being responsible for the highest activity of the enzyme. Meta-analysis of 11 studies including white persons showed that the DD genotype was a risk factor for ischemic stroke. No such correlation was found in an Asian population. Studies on different etiologies or intermediate phenotypes of ischemic stroke did not bring univocal results. There are still no convincing data on whether the I/D polymorphism of the ACE gene is a risk factor for spontaneous intracerebral hemorrhage and intracranial aneurysms, ruptured or unruptured. Several pharmacogenetic studies analyzed the influence of the ACE I/D polymorphism on the response to acute stroke therapy (thrombolysis) or prevention strategies (lifestyle modification and treatment of vascular risk factors). Presently, however, there is no consensus on whether the efficacy of these therapies is affected by the ACE gene I/D polymorphism.
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Affiliation(s)
- Agnieszka Slowik
- Department of Neurology, Jagiellonian University, Medical College, Botaniczna 3, Kraków 31-503, Poland.
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Mineharu Y, Inoue K, Inoue S, Yamada S, Nozaki K, Hashimoto N, Koizumi A. Model-based linkage analyses confirm chromosome 19q13.3 as a susceptibility locus for intracranial aneurysm. Stroke 2007; 38:1174-8. [PMID: 17322081 DOI: 10.1161/01.str.0000259657.73682.03] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE In previous studies of familial intracranial aneurysm (IA), parametric linkage analyses have been undertaken for five unrelated families, four providing maximum logarithm of odds (LOD) scores with dominant models and one with a recessive model. Each family was linked to a distinct locus, indicating locus heterogeneity. This study aimed to examine whether Japanese IA families consistent with autosomal-dominant mode of inheritance support linkage to these loci. METHODS We performed genomewide linkage analysis using the GENEHUNTER program. Affected-only parametric linkage analysis was used for 41 affected members in nine unrelated IA families with dominant models, which were selected from 29 families used for a nonparametric (model-free) linkage analysis in our previous study. RESULTS We failed to support the linkage to previously reported autosomal-dominant loci. Instead, we found linkage to chromosome 19q13.3 with a maximum multipoint LOD score of 4.10. The LOD-1 interval (regions with LOD scores of >1) was 8.0 cM between D19S198 and D19S902. CONCLUSIONS A genomewide scan for IA families with dominant models in Japan confirmed the locus at chromosome 19q13.3, which has also been reported as a candidate locus in a Finnish population.
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Affiliation(s)
- Youhei Mineharu
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Konoe-cho, Yoshida, Sakyo-ku, Kyoto, Japan
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Mineharu Y, Takenaka K, Yamakawa H, Inoue K, Ikeda H, Kikuta KI, Takagi Y, Nozaki K, Hashimoto N, Koizumi A. Inheritance pattern of familial moyamoya disease: autosomal dominant mode and genomic imprinting. J Neurol Neurosurg Psychiatry 2006; 77:1025-9. [PMID: 16788009 PMCID: PMC2077755 DOI: 10.1136/jnnp.2006.096040] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Although the aetiology of moyamoya disease (MMD) has not been fully clarified, genetic analysis of familial MMD (F-MMD) has considerable potential to disclose it. OBJECTIVE To determine the inheritance pattern and clinical characteristics of F-MMD to enable precise genetic analyses of the disease. METHODS 15 highly aggregated Japanese families (52 patients; 38 women and 14 men) with three or more affected members were examined. The difference in categories of age at onset (child onset, adult onset and asymptomatic) between paternal and maternal transmission was compared by chi2 statistics. RESULTS In all families there had been three or more generations without consanguinity, and all types of transmission, including father-to-son, were observed. Among a total of 135 offspring of affected people, 59 (43.7%) were patients with MMD or obligatory carriers. Affected mothers were more likely to produce late-onset (adult-onset or asymptomatic) female offspring (p = 0.007). CONCLUSIONS The mode of inheritance of F-MMD is autosomal dominant with incomplete penetrance. Thus, in future genetic studies on F-MMD, parametric linkage analyses using large families with an autosomal dominant mode of inheritance are recommended. Genomic imprinting may be associated with the disease.
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Affiliation(s)
- Y Mineharu
- Department of Health and Environmental Sciences, Kyoto University Graduate School of Medicine, Yoshida, Kyoto 606-8501, Japan
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