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Alsbrook DL, Di Napoli M, Bhatia K, Desai M, Hinduja A, Rubinos CA, Mansueto G, Singh P, Domeniconi GG, Ikram A, Sabbagh SY, Divani AA. Pathophysiology of Early Brain Injury and Its Association with Delayed Cerebral Ischemia in Aneurysmal Subarachnoid Hemorrhage: A Review of Current Literature. J Clin Med 2023; 12:jcm12031015. [PMID: 36769660 PMCID: PMC9918117 DOI: 10.3390/jcm12031015] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
Background: Delayed cerebral ischemia (DCI) is a common and serious complication of aneurysmal subarachnoid hemorrhage (aSAH). Though many clinical trials have looked at therapies for DCI and vasospasm in aSAH, along with reducing rebleeding risks, none have led to improving outcomes in this patient population. We present an up-to-date review of the pathophysiology of DCI and its association with early brain injury (EBI). Recent Findings: Recent studies have demonstrated that EBI, as opposed to delayed brain injury, is the main contributor to downstream pathophysiological mechanisms that play a role in the development of DCI. New predictive models, including advanced monitoring and neuroimaging techniques, can help detect EBI and improve the clinical management of aSAH patients. Summary: EBI, the severity of subarachnoid hemorrhage, and physiological/imaging markers can serve as indicators for potential early therapeutics in aSAH. The microcellular milieu and hemodynamic pathomechanisms should remain a focus of researchers and clinicians. With the advancement in understanding the pathophysiology of DCI, we are hopeful that we will make strides toward better outcomes for this unique patient population.
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Affiliation(s)
- Diana L Alsbrook
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Mario Di Napoli
- Neurological Service, SS Annunziata Hospital, Sulmona, 67039 L'Aquila, Italy
| | - Kunal Bhatia
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Masoom Desai
- Department of Neurology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Archana Hinduja
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Clio A Rubinos
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Gelsomina Mansueto
- Department of Advanced Medical and Surgical Sciences, University of Campania, 80138 Naples, Italy
| | - Puneetpal Singh
- Department of Human Genetics, Punjabi University, Patiala 147002, India
| | - Gustavo G Domeniconi
- Unidad de Cuidados Intensivos, Sanatorio de la Trinidad San Isidro, Buenos Aires 1640, Argentina
| | - Asad Ikram
- Stroke Division, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Sara Y Sabbagh
- Department of Neurology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Afshin A Divani
- Department of Neurology, University of New Mexico, Albuquerque, NM 87131, USA
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A Computational Model of Blood D-Dimer, Cystatin C, and CRP Levels Predicts the Risk of Intracranial Aneurysms and their Rupture. COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE 2022; 2022:2216509. [DOI: 10.1155/2022/2216509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 11/19/2022]
Abstract
Objective. The aim of this study is to construct a computational model of blood D-dimer, cystatin C, and CRP levels and to predict the risk of intracranial aneurysms and their rupture. Methods. A total of 69 intracranial aneurysms patients were selected as the case group, including 28 cases in the ruptured group and 41 cases in the unruptured group. Another 64 non-intracranial aneurysm patients were selected as the control group. The detection results of serum D-dimer, cystatin C, and CRP were collected. The logistic regression computational model was used to analyze the occurrence and risk factors of intracranial aneurysms. The receiver operating curves (ROC) of serum D-dimer, cystatin C, and C reactive protein (CRP) levels for predicting intracranial aneurysms and their rupture were drawn, and the area under the curve (AUC), sensitivity, and specificity were calculated. Results. The serum levels of D-dimer, cystatin C, and CRP in patients with intracranial aneurysms were significantly higher than those in the control group and the differences were statistically significant
. The serum levels of D-dimer, cystatin C, and CRP in patients with ruptured intracranial aneurysms were higher than those in patients with unruptured intracranial aneurysms, and the differences were also statistically significant
. The combined detection of serum D-dimer, cystatin C, and CRP levels has a higher AUC (0.9014) for predicting intracranial aneurysms and higher AUC (0.9412) for predicting ruptured intracranial aneurysms than D-dimer (0.7118 and 0.8750, respectively), cystatin C (0.6489 and 0.6180, respectively), and CRP (0.7764 and 0.6551, respectively) independent detection; the combined detection had a sensitivity of 93.75% and 87.80 for predicting the occurrence and rupture of intracranial aneurysms, and the specificity was 68.12% and 92.86%, respectively. Conclusion. The combined detection of serum D-dimer, cystatin C, and CRP levels is a very valuable indicator for predicting the occurrence and rupture of intracranial aneurysms, and combined detection can provide scientific evidence-based guidance for clinical prediction of the occurrence and rupture of intracranial aneurysms.
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Luo C, Li B, Liu C, Dong R, Hu C, Liu J, Hu L, Liao X, Zhou J, Xu L, Liu S, Yuan D, Jiang W, Yan J, Li Y. Lysyl oxidase family gene polymorphisms and risk of aneurysmal subarachnoid hemorrhage: a case-control study. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:925. [PMID: 36172092 PMCID: PMC9511205 DOI: 10.21037/atm-22-3484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/08/2022] [Indexed: 11/15/2022]
Abstract
Background Aneurysmal subarachnoid hemorrhage (aSAH) is a devastating disease caused by intracranial aneurysm (IA) rupture. Lysyl oxidase (LOX) family genes (LOX-like [LOXL] 1-4) have roles in collagen cross-linking in the extracellular matrix (ECM) and may be associated with IA rupture. We aimed to explore the association between LOX polymorphisms and the risk of aSAH. Methods This case-control study included 2 cohorts: 133 single ruptured and 115 unruptured IA patients, and 65 multiple ruptured and 71 unruptured IA patients. Genotyping of 27 single nucleotide polymorphisms (SNPs) in LOX was performed. Logistic regression analysis was performed to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) of the SNPs of LOX and the risk of aSAH. Results LOX rs1800449 and LOXL4 rs3793692 were positively associated with the risk of single IA rupture in the recessive model (OR =5.66, 2.06; 95% CI =1.22–26.24, 1.11–3.82, respectively) and LOX rs10519694 demonstrated a protective effect on single IA rupture (dominant model: OR =0.42, 95% CI =0.21–0.83; recessive model: OR =0.16, 95% CI =0.04–0.65; additive model: OR =0.46, 95% CI =0.28–0.78). LOXL1 rs2165241, LOXL2 rs1063582, and LOXL3 rs17010021 showed risk effects on multiple IAs rupture. LOXL3 rs17010022 showed a protective effect on multiple IAs ruptures (dominant model: OR =0.41, 95% CI =0.21–0.82; additive model: OR =0.51, 95% CI =0.30–0.85). Conclusions LOX and LOXL4 may be susceptibility genes for single IA rupture, whereas LOXL1-3 may have a role in susceptibility to multiple IAs ruptures in the Chinese population, suggesting that LOX family genes may be associated with aSAH.
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Affiliation(s)
- Chun Luo
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Bingyang Li
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China.,Department of Information Statistics, Changsha Hospital of Traditional Chinese Medicine (Changsha Eighth Hospital), Changsha, China
| | - Chao Liu
- Department of Neurosurgery, Central Hospital of Zhuzhou, Zhuzhou, China
| | - Rui Dong
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Chongyu Hu
- Department of Neurology, Hunan People's Hospital, Changsha, China
| | - Junyu Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Liming Hu
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China
| | - Xin Liao
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macau, China
| | - Jilin Zhou
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Lu Xu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Songlin Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Dun Yuan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Weixi Jiang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Junxia Yan
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China.,The Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha, China
| | - Yifeng Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
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Luo C, Hu C, Li B, Liu J, Hu L, Dong R, Liao X, Zhou J, Xu L, Liu S, Li Y, Yuan D, Jiang W, Yan J. Polymorphisms in Lysyl Oxidase Family Genes Are Associated With Intracranial Aneurysm Susceptibility in a Chinese Population. Front Endocrinol (Lausanne) 2021; 12:642698. [PMID: 34393991 PMCID: PMC8355735 DOI: 10.3389/fendo.2021.642698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 06/29/2021] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Intracranial aneurysms (IA) comprise a multifactorial disease with unclear physiological mechanisms. The lysyl oxidase (LOX) family genes (LOX, LOX-like 1-4) plays important roles in extracellular matrix (ECM) reconstruction and has been investigated in terms of susceptibility to IA in a few populations. We aimed to determine whether polymorphisms in LOX family genes are associated with susceptibility to IA in a Chinese population. METHODS This case-control study included 384 patients with IA and 384 healthy individuals without IA (controls). We genotyped 27 single nucleotide polymorphisms (SNPs) of LOX family genes using the Sequenom MassARRAY® platform. These SNPs were adjusted for known risk factors and then, odds ratios (OR) and 95% confidence intervals (CI) were evaluated using binary logistic regression analysis. RESULTS The result showed that LOX rs10519694 was associated with the risk of IA in recessive (OR, 3.88; 95% CI, 1.12-13.47) and additive (OR, 1.56; 95%CI, 1.05-2.34) models. Stratified analyses illustrated that LOX rs10519694 was associated with the risk of single IA in the recessive (OR, 3.95; 95%CI, 1.04-15.11) and additive (OR, 1.64; 95%CI, 1.04-2.56) models. The LOXL2 rs1010156 polymorphism was associated with multiple IA in the dominant model (OR, 1.92; 95%CI, 1.02-3.62). No associations were observed between SNPs of LOXL1, LOXL3, and LOXL4 and risk of IA. CONCLUSION LOX and LOXL2 polymorphisms were associated with risk of single IA and multiple IA in a Chinese population, suggesting potential roles of these genes in IA. The effects of these genes on IA require further investigation.
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Affiliation(s)
- Chun Luo
- Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China
| | - Chongyu Hu
- Department of Neurology, Hunan People’s Hospital, Changsha, China
| | - Bingyang Li
- Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China
- Department of Information Statistics, Changsha Hospital of Traditional Chinese Medicine (Changsha Eight Hospital), Changsha, China
| | - Junyu Liu
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Liming Hu
- Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China
| | - Rui Dong
- Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China
| | - Xin Liao
- Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China
- Department of Scientific Research, The People’s Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jilin Zhou
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Lu Xu
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Songlin Liu
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Yifeng Li
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Dun Yuan
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Weixi Jiang
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, China
| | - Junxia Yan
- Department of Epidemiology and Health Statistics, XiangYa School of Public Health, Central South University, Changsha, China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, XiangYa School of Public Health, Central South University, Changsha, China
- *Correspondence: Junxia Yan,
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Morphological parameters of middle cerebral arteries associated with aneurysm formation. Neuroradiology 2020; 63:179-188. [PMID: 32814989 PMCID: PMC7846548 DOI: 10.1007/s00234-020-02521-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 08/13/2020] [Indexed: 10/26/2022]
Abstract
PURPOSE The objective of this work was to investigate the correlation between morphological parameters of the MCA and the formation of aneurysms. METHODS MCA aneurysms were diagnosed in 122 cases using CT angiography (including 30 cases of M1 proximal aneurysms, 70 cases of M1 bifurcation aneurysms, and 22 cases of distal aneurysms). Images from these cases were retrospectively compared with images from 50 healthy controls. Morphological parameters including the angle of the MCA with the ICA (α) and the ACA (β) were evaluated in the three aneurysm groups and the control group; parent-daughter angles (γ1, γ2), bifurcation angles (γ3), bifurcation diameters, angle ratios, and branch diameter ratios were also compared between the bifurcation aneurysm group and the control group. The blood vessel parameters between the aneurysm groups and controls were analyzed statistically. RESULTS There was no statistically significant difference in α between the three groups of aneurysms and the control group (P = 0.381). In comparing β between the three groups of aneurysms and the control group, statistically significant differences were only observed between the MCA distal aneurysm group and the control group (P = 0.010). Compared with the control group, MCA bifurcation aneurysms were associated with larger γ3 and smaller γ1 and γ2 (P < 0.001). This resulted in significantly larger angle ratios in the MCA bifurcation aneurysm group (P < 0.001). For the diameter measurements, the bifurcation diameter of the MCA bifurcation aneurysms was significantly smaller (P = 0.001). CONCLUSION The formation of MCA aneurysms is related to morphological parameters.
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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]
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Rajagopal N, Yamada Y, Balaji A, Kawase T, Kato Y. Rare cases of multiple unruptured intracranial aneurysms: Illustrative report and review on management options. INTERDISCIPLINARY NEUROSURGERY 2019. [DOI: 10.1016/j.inat.2019.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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8
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Rajagopal N, Balaji A, Yamada Y, Kawase T, Kato Y. Etiopathogenesis, clinical presentation and management options of mirror aneurysms: A comparative analysis with non-mirror multiple aneurysms. INTERDISCIPLINARY NEUROSURGERY 2019. [DOI: 10.1016/j.inat.2019.100535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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9
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Texakalidis P, Sweid A, Mouchtouris N, Peterson EC, Sioka C, Rangel-Castilla L, Reavey-Cantwell J, Jabbour P. Aneurysm Formation, Growth, and Rupture: The Biology and Physics of Cerebral Aneurysms. World Neurosurg 2019; 130:277-284. [DOI: 10.1016/j.wneu.2019.07.093] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/18/2022]
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Hong EP, Kim BJ, Jeon JP, Yang JS, Choi HJ, Kang SH, Cho YJ. Association of Endothelin Receptor Type A with Intracranial Aneurysm in 20,609 East Asians: An Updated Meta-Analysis. World Neurosurg 2019; 130:e804-e814. [PMID: 31295611 DOI: 10.1016/j.wneu.2019.06.228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Genome-wide association studies have reported an association between the EDNRA gene and intracranial aneurysm (IA) in European and Japanese populations; however, there is no study on this polymorphism in other Asian populations. Therefore, we performed an extensive large-scale meta-analysis for association of the rs6841581 variant of EDNRA with IA susceptibility in East Asian population. METHODS We conducted a systemic review via electronic search for papers published between January 2002 and February 2019. We used fixed and random effect models and applied the inverse variance method. The statistical power of the result was estimated in the genome-wide significant threshold under an additive inheritance model. RESULTS Our meta-analysis included 5873 patients with IA and 14,736 non-IA controls from 6 independent populations: 4 Japanese, 1 Chinese, and 1 Korean. The risk (major) G allele of rs6841581 showed the highest significant association with the increased risk of IA under the fixed effect model in the East-Asian population (odds ratio = 1.244, 95% confidence interval: 1.174-1.318, P = 1.36E-13). The rs6841581 variant showed sufficient statistical power (80.3%) in this meta-analysis under the additive model. In subsequent analysis, the frequencies of the risk G allele showed similar pattern in all of the Japanese, Chinese, and Korean populations (69%, 80%, and 78%, respectively). In the in silico functional analysis, none of the functional variants was correlated with rs6841581. CONCLUSIONS The genetic variant of EDNRA, rs6841581, was significantly associated with increased risk of IA. Our findings indicate that it could be used as an IA-predicting variant in East Asian populations.
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Affiliation(s)
- Eun Pyo Hong
- Molecular Neurogenetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Institute of New Frontier Stroke Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Bong Jun Kim
- Institute of New Frontier Stroke Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Jin Pyeong Jeon
- Institute of New Frontier Stroke Research, Hallym University College of Medicine, Chuncheon, Korea; Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea; Genetic and Research, Chuncheon, Korea.
| | - Jin Seo Yang
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
| | - Hyuk Jai Choi
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
| | - Suk Hyung Kang
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
| | - Yong Jun Cho
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
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Lin M, Griessenauer CJ, Starke RM, Tubbs RS, Shoja MM, Foreman PM, Vyas NA, Walters BC, Harrigan MR, Hendrix P, Fisher WS, Pittet JF, Mathru M, Lipsky RH. Haplotype analysis of SERPINE1 gene: Risk for aneurysmal subarachnoid hemorrhage and clinical outcomes. Mol Genet Genomic Med 2019; 7:e737. [PMID: 31268630 PMCID: PMC6687628 DOI: 10.1002/mgg3.737] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 04/24/2019] [Indexed: 12/12/2022] Open
Abstract
Background Aneurysmal subarachnoid hemorrhage (aSAH) has high fatality and permanent disability rates due to the severe damage to brain cells and inflammation. The SERPINE1 gene that encodes PAI‐1 for the regulation of tissue plasminogen activator is considered an important therapeutic target for aSAH. Methods Six SNPs in the SERPINE1 gene (in order of rs2227631, rs1799889, rs6092, rs6090, rs2227684, rs7242) were investigated. Blood samples were genotyped with Taqman genotyping assays and pyrosequencing. The experiment‐wide statistically significant threshold for single marker analysis was set at p < 0.01 after evaluation of independent markers. Haplotype analysis was performed in Haplo.stats package with permutation tests. Bonferroni correction for multiple comparison in dominant, additive, and recessive model was applied. Results A total of 146 aSAH patients and 49 control subjects were involved in this study. The rs2227631 G allele is significant (p = 0.01) for aSAH compared to control. In aSAH group, haplotype analysis showed that G5GGGT homozygotes in recessive model were associated with delayed cerebral ischemia (p < 0.01, Odds Ratio = 5.14, 95% CI = 1.45–18.18), clinical vasospasm (p = 0.01, Odds Ratio = 4.58, 95% CI = 1.30–16.13), and longer intensive care unit stay (p = 0.01). By contrast, the G5GGAG carriers were associated with less incidence of cerebral edema (p < 0.01) and higher Glasgow Coma Scale (p < 0.01). The A4GGGT carriers were associated with less incidence of severe hypertension (>140/90) (p < 0.01). Conclusion The results suggested an important regulatory role of the SERPINE1 gene polymorphism in clinical outcomes of aSAH.
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Affiliation(s)
- Mingkuan Lin
- Department of Systems Biology, George Mason University, Fairfax, Virginia.,Department of Neuroscience, INOVA Health System, Fairfax, Virginia
| | - Christoph J Griessenauer
- Department of Neurosurgery, Geisinger, Danville, Pennsylvania.,Research Institute of Neurointervention, Paracelsus Medical University, Salzurg, Austria
| | - Robert M Starke
- Department of Neurosurgery and Radiology, University of Miami, Miami, Florida
| | | | | | - Paul M Foreman
- Department of Neurosurgery, University of Alabama at Birmingham, Alabama, Alabama
| | - Nilesh A Vyas
- Department of Neuroscience, INOVA Health System, Fairfax, Virginia
| | | | - Mark R Harrigan
- Department of Neurosurgery, University of Alabama at Birmingham, Alabama, Alabama
| | - Philipp Hendrix
- Department of Neurosurgery, Saarland University Medical Center, Saarland University, Homburg, Germany
| | - Winfield S Fisher
- Department of Neurosurgery, University of Alabama at Birmingham, Alabama, Alabama
| | - Jean-Francois Pittet
- Department of Neurosurgery, University of Alabama at Birmingham, Alabama, Alabama
| | - Mali Mathru
- Department of Neurosurgery, University of Alabama at Birmingham, Alabama, Alabama
| | - Robert H Lipsky
- Department of Systems Biology, George Mason University, Fairfax, Virginia.,Department of Neuroscience, INOVA Health System, Fairfax, Virginia
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Genome-Wide Association between the 2q33.1 Locus and Intracranial Aneurysm Susceptibility: An Updated Meta-Analysis Including 18,019 Individuals. J Clin Med 2019; 8:jcm8050692. [PMID: 31100866 PMCID: PMC6572517 DOI: 10.3390/jcm8050692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/02/2019] [Accepted: 05/15/2019] [Indexed: 11/17/2022] Open
Abstract
Previous genome-wide association studies did not show a consistent association between the BOLL gene (rs700651, 2q33.1) and intracranial aneurysm (IA) susceptibility. We aimed to perform an updated meta-analysis for the potential IA-susceptibility locus in large-scale multi-ethnic populations. We conducted a systematic review of studies identified by an electronic search from January 1990 to March 2019. The overall estimates of the "G" allele of rs700651, indicating IA susceptibility, were calculated under the fixed- and random-effect models using the inverse-variance method. Subsequent in silico function and cis-expression quantitative trait loci (cis-eQTL) analyses were performed to evaluate biological functions and genotype-specific expressions in human tissues. We included 4513 IA patients and 13,506 controls from five studies with seven independent populations: three European-ancestry, three Japanese, and one Korean population. The overall result showed a genome-wide significance threshold between rs700651 and IA susceptibility after controlling for study heterogeneity (OR = 1.213, 95% CI: 1.135-1.296). Subsequent cis-eQTL analysis showed significant genome-wide expressions in three human tissues, i.e., testis (p = 8.04 × 10-15 for ANKRD44), tibial nerves (p = 3.18 × 10-10 for SF3B1), and thyroid glands (p = 4.61 × 10-9 for SF3B1). The rs700651 common variant of the 2q33.1 region may be involved in genetic mechanisms that increase the risk of IA and may play crucial roles in regulatory functions.
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Bioengineering an Artificial Human Blood⁻Brain Barrier in Rodents. Bioengineering (Basel) 2019; 6:bioengineering6020038. [PMID: 31052208 PMCID: PMC6630638 DOI: 10.3390/bioengineering6020038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 12/15/2022] Open
Abstract
Our group has recently created a novel in-vivo human brain organoid vascularized with human iPSC-derived endothelial cells. In this review article, we discuss the challenges of creating a perfused human brain organoid model in an immunosuppressed rodent host and discuss potential applications for neurosurgical disease modeling.
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Macrophage Polarization in Cerebral Aneurysm: Perspectives and Potential Targets. J Immunol Res 2017; 2017:8160589. [PMID: 29445758 PMCID: PMC5763122 DOI: 10.1155/2017/8160589] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/20/2017] [Accepted: 11/13/2017] [Indexed: 12/19/2022] Open
Abstract
Cerebral aneurysms (CAs) have become a health burden not only because their rupture is life threatening, but for a series of devastating complications left in survivors. It is well accepted that sustained chronic inflammation plays a crucial role in the pathology of cerebral aneurysms. In particular, macrophages have been identified as critical effector cells orchestrating inflammation in CAs. In recent years, dysregulated M1/M2 polarization has been proposed to participate in the progression of CAs. Although the pathological mechanisms of M1/M2 imbalance in CAs remain largely unknown, recent advances have been made in the understanding of the molecular basis and other immune cells involving in this sophisticated network. We provide a concise overview of the mechanisms associated with macrophage plasticity and the emerging molecular targets.
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