1
|
Wang S, Deng X, Wu Y, Wu Y, Zhou S, Yang J, Huang Y. Understanding the pathogenesis of brain arteriovenous malformation: genetic variations, epigenetics, signaling pathways, and immune inflammation. Hum Genet 2023; 142:1633-1649. [PMID: 37768356 DOI: 10.1007/s00439-023-02605-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023]
Abstract
Brain arteriovenous malformation (BAVM) is a rare but serious cerebrovascular disease whose pathogenesis has not been fully elucidated. Studies have found that epigenetic regulation, genetic variation and their signaling pathways, immune inflammation, may be the cause of BAVM the main reason. This review comprehensively analyzes the key pathways and inflammatory factors related to BAVMs, and explores their interplay with epigenetic regulation and genetics. Studies have found that epigenetic regulation such as DNA methylation, non-coding RNAs and m6A RNA modification can regulate endothelial cell proliferation, apoptosis, migration and damage repair of vascular malformations through different target gene pathways. Gene defects such as KRAS, ACVRL1 and EPHB4 lead to a disordered vascular environment, which may promote abnormal proliferation of blood vessels through ERK, NOTCH, mTOR, Wnt and other pathways. PDGF-B and PDGFR-β were responsible for the recruitment of vascular adventitial cells and smooth muscle cells in the extracellular matrix environment of blood vessels, and played an important role in the pathological process of BAVM. Recent single-cell sequencing data revealed the diversity of various cell types within BAVM, as well as the heterogeneous expression of vascular-associated antigens, while neutrophils, macrophages and cytokines such as IL-6, IL-1, TNF-α, and IL-17A in BAVM tissue were significantly increased. Currently, there are no specific drugs targeting BAVMs, and biomarkers for BAVM formation, bleeding, and recurrence are lacking clinically. Therefore, further studies on molecular biological mechanisms will help to gain insight into the pathogenesis of BAVM and develop potential therapeutic strategies.
Collapse
Affiliation(s)
- Shiyi Wang
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Xinpeng Deng
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Yuefei Wu
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Yiwen Wu
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Shengjun Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Jianhong Yang
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China.
| | - Yi Huang
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China.
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315010, Zhejiang, China.
| |
Collapse
|
2
|
Zhou S, Zhang J, Zhou C, Gong F, Zhu X, Pan X, Sun J, Gao X, Huang Y. DNA Methylation of Patatin-Like Phospholipase Domain-Containing Protein 6 Gene Contributes to the Risk of Intracranial Aneurysm in Males. Front Aging Neurosci 2022; 14:885680. [PMID: 35898327 PMCID: PMC9309567 DOI: 10.3389/fnagi.2022.885680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/17/2022] [Indexed: 11/16/2022] Open
Abstract
Objective: This study is aimed to investigate the contribution of patatin-like phospholipase domain-containing protein 6 (PNPLA6) DNA methylation to the risk of intracranial aneurysm (IA) in the Han Chinese population. Methods: A total of 96 age- and sex-matched participants were recruited to evaluate PNPLA6 methylation via bisulfite pyrosequencing. The PNPLA6 mRNA expression in the plasma was determined using real-time quantitative reverse transcription-polymerase chain reaction. Human primary artery smooth muscle cells (HPCASMC) were used for the in vitro function study. Results: PNPLA6 methylation was significantly higher in patients with IA than in healthy controls (p < 0.01). Sex group analysis showed that this correlation appeared in the male group (p < 0.01) but not in the female group (p > 0.05). PNPLA6 methylation was significantly associated with age in all participants (r = 0.306, p = 0.003) and in the control group (r = 0.377, p = 0.008) but not in the IA group (r = 0.127, p = 0.402). Furthermore, the PNPLA6 mRNA expression significantly decreased in patients with IA than that in the controls (p = 0.016). PNPLA6 expression was significantly inversely correlated with elevated DNA methylation in participants (r = −0.825, p < 0.0001). In addition, PNPLA6 transcription was significantly enhanced following treatment with 5-aza-2’-deoxycytidine methylation inhibitor in HPCASMC.The receiver operating characteristic analyses of curves showed that the PNPLA6 mean methylation [area under the curve (AUC) = 0.74, p < 0.001] and mRNA expression (AUC = 0.86, p < 0.001) could have a diagnostic value for patients with IA. Conclusion: Although future functional experiments are required to test our hypothesis, our study demonstrated that PNPLA6 methylation and mRNA expression were significantly associated with the risk of IA; thus, they show potential for use in the early diagnosis of IA.
Collapse
Affiliation(s)
- Shengjun Zhou
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Junjun Zhang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
| | - Chenhui Zhou
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
| | - Fanyong Gong
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
| | - Xueli Zhu
- Department of Ultrasound, Ningbo First Hospital, Ningbo, China
| | - Xingqiang Pan
- Ningbo Center for Disease Control and Prevention, Ningbo, China
| | - Jie Sun
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
- *Correspondence: Jie Sun Xiang Gao Yi Huang
| | - Xiang Gao
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
- *Correspondence: Jie Sun Xiang Gao Yi Huang
| | - Yi Huang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, China
- Medical Research Center, Ningbo First Hospital, Ningbo, China
- *Correspondence: Jie Sun Xiang Gao Yi Huang
| |
Collapse
|
3
|
Wang Z, Zhou S, Zhao J, Nie S, Sun J, Gao X, Lenahan C, Lin Z, Huang Y, Chen G. Tobacco Smoking Increases Methylation of Polypyrimidine Tract Binding Protein 1 Promoter in Intracranial Aneurysms. Front Aging Neurosci 2021; 13:688179. [PMID: 34295240 PMCID: PMC8292010 DOI: 10.3389/fnagi.2021.688179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/14/2021] [Indexed: 11/20/2022] Open
Abstract
DNA methylation at the gene promoter region is reportedly involved in the development of intracranial aneurysm (IA). This study aims to investigate the methylation levels of polypyrimidine tract-binding protein 1 (PTBP1) in IA, as well as its potential to predict IA. Forty-eight patients with IA and 48 age- and sex-matched healthy controls were recruited into this study. Methylation levels of CpG sites were determined via bisulfite pyrosequencing. The PTBP1 levels in the blood were determined using a real-time quantitative reverse transcription-polymerase chain reaction test. Significant differences were found between IAs and controls in CpG1 (p = 0.001), CpG2 (p < 0.001), CpG3 (p = 0.037), CpG4 (p = 0.003), CpG5 (p = 0.006), CpG6 (p = 0.02), and mean methylation (p < 0.001). The mRNA level of PTBP1 in the blood was much lower in IAs compared with controls (p = 0.002), and the PTBP1 expression was significantly associated with DNA methylation promoter levels in individuals (r = −0.73, p < 0.0001). In addition, stratification analysis comparing smokers and non-smokers revealed that tobacco smokers had significantly higher levels of DNA methylation in PTBP1 than non-smokers (p = 0.002). However, no statistical difference in PTBP1 methylation was found between ruptured and unruptured IA groups (p > 0.05). The ROC analyses of curves revealed that PTBP1 methylation may be a predictor of IA regardless of sex (both sexes, area under curve (AUC) = 0.78, p < 0.0001; male, AUC = 0.76, p = 0.002; female, AUC = 0.79, p < 0.0001). These findings suggest that long-term tobacco smoke exposure led to DNA methylation in the promoter region of the PTBP1 gene, which further decreased PTBP1 gene expression and participated in the pathogenesis of IA. The methylation of PTBP1 may be a potential predictive marker for the occurrence of IA.
Collapse
Affiliation(s)
- Zhepei Wang
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China.,Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shengjun Zhou
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China.,Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jikuang Zhao
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China.,Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng Nie
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Jie Sun
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Xiang Gao
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Cameron Lenahan
- Burrell College of Osteopathic Medicine, Las Cruces, NM, United States
| | - Zhiqin Lin
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Yi Huang
- Department of Neurosurgery, Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China.,Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Gao Chen
- Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
4
|
Zhao L, Chen X, Zhou S, Lin Z, Yu X, Huang Y. DNA methylation of AHCY may increase the risk of ischemic stroke. Bosn J Basic Med Sci 2020; 20:471-476. [PMID: 32020847 PMCID: PMC7664786 DOI: 10.17305/bjbms.2020.4535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 12/30/2019] [Indexed: 12/15/2022] Open
Abstract
Genetic factors play an important role in the pathogenesis of ischemic stroke. Of these, epigenetic modifications provide a new direction for the study of ischemic stroke pathogenesis. This study aimed to determine the correlation between DNA methylation of the gene encoding S-adenosylhomocysteine hydrolase (AHCY) and the risk of ischemic stroke in 64 ischemic stroke patients and 138 patients with traumatic brain injury (control group). The methylation level of AHCY was analyzed using quantitative methylation-specific polymerase chain reaction. Statistically significant differences in AHCY methylation levels were observed between the case group [medians (interquartile range): 0.13% (0.09%, 0.27%)] and the control group [0.06% (0.00%, 0.17%), p < 0.0001], and these associations remained significant in both male (p = 0.003) and female (p = 0.0005) subjects. A subgroup analysis by age revealed a considerably higher percentage of methylated AHCY in the case group than the control group in all age groups (age < 60 years, p = 0.007; age ≥ 60 years, p < 0.0001). A receiver operating characteristic (ROC) curve analysis revealed a trend toward a role for AHCY methylation as an indicator of risk in all ischemic patients [area under the curve (AUC) = 0.70, p = 0.0001], male patients (AUC = 0.67, p = 0.004), and female patients (AUC = 0.75, p = 0.0002). Our study confirmed a significant association between the AHCY DNA methylation level and the risk of ischemic stroke, suggesting that this gene methylation pattern may be a potential diagnostic marker of ischemic stroke.
Collapse
Affiliation(s)
- Lei Zhao
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China; Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Xiaosheng Chen
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China; Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Shengjun Zhou
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China; Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Zhiqing Lin
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China; Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| | - Xi Yu
- Key Laboratory, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Yi Huang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo, China; Ningbo Hospital, Zhejiang University School of Medicine, Ningbo, China
| |
Collapse
|
5
|
An Effective and Simple Way to Establish Elastase-Induced Middle Carotid Artery Fusiform Aneurysms in Rabbits. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6707012. [PMID: 32908904 PMCID: PMC7471820 DOI: 10.1155/2020/6707012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/28/2020] [Indexed: 11/25/2022]
Abstract
Objective Elastase-induced aneurysms in rabbits have been proposed as a preclinical tool for device development, but there is still much deficiency in those aneurismal models. So we need to explore the efficient and convenient animal models for the investigation of intracranial aneurysms. Then, we compared and analyzed three methods of elastase-induced carotid artery aneurysms in rabbits and aimed to find a simple, effective, and reproducible method for creating elastase-induced aneurysms. Methods 42 standard feeding male adult Japanese white rabbits (3.05 ± 0.65 kg) were randomly divided into 3 groups and treated with elastase ablation to create common carotid artery (RCCA) aneurysm models: Group A (root-RCCA medication group, n = 12), Group B (mid-RCCA medication group, n = 18), and Group C (ligated RCCA+medication group, n = 12). For Group A, the origin of the RCCA was blocked by two temporary aneurysm clips, and the resulting 2 cm cavity was infused with elastase for 20 min, then the clip was removed and the RCCA was not ligated. For Group B, the middle part of RCCA was treated the same way as Group A and the RCCA was not ligated. For Group C, the middle part of RCCA was treated as Group B, but the distal RCCA was ligated. After the aneurysm models were created for 3 weeks, prior to sacrificing the animals, color Doppler ultrasound and angiography were performed for blood flow measurements inside the aneurysms. Histological analysis (such as SMA-α, CD31, CD34, CD68, collagen IV, and Ki67) and the other relevant indexes were compared between the ideal model's aneurysmal tissues and the human intracranial aneurysm's tissues to confirm whether we have successfully established elastase-induced aneurysm models. Results Compared with human intracranial aneurysm specimens by the color Doppler ultrasound, angiography, and changes in the inner diameter of arteries, all three methods have successfully established the elastase-induced aneurysm models. Histology showed that biological responses were similar to both human cerebral aneurysms and previously published elastase-induced rabbit aneurysm models. Group A and Group B had the same morphology, but Group A had a higher mortality rate than Group B. Group B and Group C had different morphology. The aneurysm of Group C was more similar to human cerebral aneurysms but had a higher mortality rate than Group B. Group B was confirmed not only as an alternative method but also as a more safe and effective method for creating elastase-induced aneurysm models. Conclusion Through analysis and comparison, the Group B is proven to be the simplest, reproducible, and most effective modeling method. The aneurysm model established by Group B can be used for basic research related to aneurysm mechanism. We have provided a new and effective method for basic research on aneurysm.
Collapse
|
6
|
Liu Y, Wu X, Nie S, Zhou S, Xiao S, Gao X, Lin Z, Sun J, Huang Y. Methylation of Phospholipase A2 Group VII Gene Is Associated with Brain Arteriovenous Malformations in Han Chinese Populations. J Mol Neurosci 2020; 70:1056-1063. [DOI: 10.1007/s12031-020-01508-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 02/19/2020] [Indexed: 11/29/2022]
|
7
|
Methylation of the CDKN2A Gene Increases the Risk of Brain Arteriovenous Malformations. J Mol Neurosci 2019; 69:316-323. [DOI: 10.1007/s12031-019-01360-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/18/2019] [Indexed: 12/19/2022]
|
8
|
Zhou S, Gao X, Sun J, Lin Z, Huang Y. DNA Methylation of thePDGFDGene Promoter Increases the Risk for Intracranial Aneurysms and Brain Arteriovenous Malformations. DNA Cell Biol 2017; 36:436-442. [PMID: 28346846 DOI: 10.1089/dna.2016.3499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Shengjun Zhou
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Xiang Gao
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Jie Sun
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Zhiqing Lin
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Yi Huang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| |
Collapse
|
9
|
Sundar IK, Yin Q, Baier BS, Yan L, Mazur W, Li D, Susiarjo M, Rahman I. DNA methylation profiling in peripheral lung tissues of smokers and patients with COPD. Clin Epigenetics 2017; 9:38. [PMID: 28416970 PMCID: PMC5391602 DOI: 10.1186/s13148-017-0335-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/29/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Epigenetics changes have been shown to be affected by cigarette smoking. Cigarette smoke (CS)-mediated DNA methylation can potentially affect several cellular and pathophysiological processes, acute exacerbations, and comorbidity in the lungs of patients with chronic obstructive pulmonary disease (COPD). We sought to determine whether genome-wide lung DNA methylation profiles of smokers and patients with COPD were significantly different from non-smokers. We isolated DNA from parenchymal lung tissues of patients including eight lifelong non-smokers, eight current smokers, and eight patients with COPD and analyzed the samples using Illumina's Infinium HumanMethylation450 BeadChip. RESULTS Our data revealed that the differentially methylated genes were related to top canonical pathways (e.g., G beta gamma signaling, mechanisms of cancer, and nNOS signaling in neurons), disease and disorders (organismal injury and abnormalities, cancer, and respiratory disease), and molecular and cellular functions (cell death and survival, cellular assembly and organization, cellular function and maintenance) in patients with COPD. The genome-wide DNA methylation analysis identified suggestive genes, such as NOS1AP, TNFAIP2, BID, GABRB1, ATXN7, and THOC7 with DNA methylation changes in COPD lung tissues that were further validated by pyrosequencing. Pyrosequencing validation confirmed hyper-methylation in smokers and patients with COPD as compared to non-smokers. However, we did not detect significant differences in DNA methylation for TNFAIP2, ATXN7, and THOC7 genes in smokers and COPD groups despite the changes observed in the genome-wide analysis. CONCLUSIONS Our study suggests that DNA methylation in suggestive genes, such as NOS1AP, BID, and GABRB1 may be used as epigenetic signatures in smokers and patients with COPD if the same is validated in a larger cohort. Future studies are required to correlate DNA methylation status with transcriptomics of selective genes identified in this study and elucidate their role and involvement in the progression of COPD and its exacerbations.
Collapse
Affiliation(s)
- Isaac K Sundar
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, 14642 NY USA
| | - Qiangzong Yin
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, 14642 NY USA
| | - Brian S Baier
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, 14642 NY USA
| | - Li Yan
- Department of Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY USA
| | - Witold Mazur
- Heart and Lung Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Dongmei Li
- Department of Clinical & Translational Research, University of Rochester Medical Center, Rochester, NY USA
| | - Martha Susiarjo
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, 14642 NY USA
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, Box 850, 601 Elmwood Avenue, Rochester, 14642 NY USA
| |
Collapse
|
10
|
Zhao J, Wu X, Nie S, Gao X, Sun J, Li K, Zhang T, Huang Y. Association of CDKN2B-AS1 rs1333049 with Brain Diseases: A Case-control Study and a Meta-analysis. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE 2017; 15:53-58. [PMID: 28138111 PMCID: PMC5290720 DOI: 10.9758/cpn.2017.15.1.53] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/19/2016] [Accepted: 08/25/2016] [Indexed: 12/20/2022]
Abstract
Objective CDKN2B-AS1 polymorphisms were shown to associate with the risk of stroke in European. The goal of this study was to evaluate the contribution of CDKN2B-AS1 rs1333049 to the risk of hemorrhagic stroke (HS) and brain tumor (BT) in Han Chinese. Methods A total of 142 HSs, 115 BTs, and 494 controls were included in the current association study. The genotyping test was performed using the melting temperature shift method. Results We failed to validate the association of CDKN2B-AS1 rs1333049 with the risk of brain disease. Significantly higher levels of low-density lipoprotein cholesterol (LDL-C) (p=0.027), high-density lipoprotein cholesterol (HDL-C) (p<0.001) and total cholesterol (TC) (p<0.001) were found in HSs in the genotype GG/GC carriers, but not the genotype CC carriers (p>0.05). The meta-analysis of 10 studies among 133,993 individuals concluded that rs1333049 of CDKN2B-AS1 gene was likely to increase a 16% incidence rate of cerebrovascular disease (CD) among various populations (odds ratio 1.16, 95% confidence interval 1.08–1.25; p<0.0001, random-effect method). Conclusion Our case-control study identified rs1333049 genotypes showed different association with the concentration of the LDL-C, HDL-C and TC in the HS patients. Meta-analysis supported the association between rs1333049 and CD risk in various populations, although we were unable to observe association between rs1333049 and the risk of HSs in Han Chinese.
Collapse
Affiliation(s)
- Jikuang Zhao
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Xizheng Wu
- Department of Neurosurgery, Ninghai First Hospital, Ninghai, China
| | - Sheng Nie
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Xiang Gao
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Jie Sun
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Keqin Li
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Tiefeng Zhang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| | - Yi Huang
- Department of Neurosurgery, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo, China
| |
Collapse
|