The Use of Extracorporeal Circulation and Profound Hypothermia in the Treatment of Ruptured Intracranial Aneurysm

1964 ◽  
Vol 21 (7) ◽  
pp. 575-581 ◽  
Author(s):  
C. G. Drake ◽  
H. W. K. Barr ◽  
J. C. Coles ◽  
N. F. Gergely
BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Wei Leng ◽  
Dan Fan ◽  
Zhong Ren ◽  
Qiaoying Li

Abstract Background This study was performed to identify genes and lncRNAs involved in the pathogenesis of subarachnoid hemorrhage (SAH) from ruptured intracranial aneurysm (RIA). Methods Microarray GSE36791 was downloaded from Gene Expression Omnibus (GEO) database followed by the identification of significantly different expressed RNAs (DERs, including lncRNA and mRNA) between patients with SAH and healthy individuals. Then, the functional analyses of DEmRNAs were conducted and weighted gene co-expression network analysis (WGCNA) was also performed to extract the modules associated with SAH. Following, the lncRNA-mRNA co-expression network was constructed and the gene set enrichment analysis (GSEA) was performed to screen key RNA biomarkers involved in the pathogenesis of SAH from RIA. We also verified the results in a bigger dataset GSE7337. Results Totally, 561 DERs, including 25 DElncRNAs and 536 DEmRNAs, were identified. Functional analysis revealed that the DEmRNAs were mainly associated with immune response-associated GO-BP terms and KEGG pathways. Moreover, there were 6 modules significantly positive-correlated with SAH. The lncRNA-mRNA co-expression network contained 2 lncRNAs (LINC00265 and LINC00937) and 169 mRNAs. The GSEA analysis showed that these two lncRNAs were associated with three pathways (cytokine-cytokine receptor interaction, neurotrophin signaling pathway, and apoptosis). Additionally, IRAK3 and NFKBIA involved in the neurotrophin signaling pathway and apoptosis while IL1R2, IL18RAP and IL18R1 was associated with cytokine-cytokine receptor interaction pathway. The expression levels of these genes have the same trend in GSE36791 and GSE7337. Conclusion LINC00265 and LINC00937 may be implicated with the pathogenesis of SAH from RIA. They were involved in three important regulatory pathways. 5 mRNAs played important roles in the three pathways.


1997 ◽  
Vol 48 (4) ◽  
pp. 338-344 ◽  
Author(s):  
E.Sander Connolly ◽  
Abraham A. Kader ◽  
Vincent I. Frazzini ◽  
Christopher J. Winfree ◽  
Robert A. Solomon

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Zhang Xin ◽  
Liu L Ping

Background and Objective: MicroRNAs have been shown to regulate in several pathological process of intracranial aneurysms. The study aimed to estimate whether miRNAs have the potential to become novel biomarkers for intracranial aneurysm rupture. Materials and methods Forty-five ruptured intracranial aneurysm patients were enrolled according to the inclusion criteria, meanwhile thirty-five healthy individuals were recruited in this study. Differentially expressed plasma miRNA profiles were screened in five pairs of patients and controls in microarray study. Then validation was performed in the rest of the objects using quantitative real-time PCR assays. Results: Fourteen significantly changed miRNAs were screened out from patients with aneurysms compared with healthy controls. More than three thousand target genes related to these disregulated miRNAs were found and bioinformatic analysis revealed that these miRNA were involved in intracranial aneurysm development and rupture. Ultimately four miRNAs from screening profile and one supplementary miRNA were demonstrated to be significantly altered. Conclusion: We demonstrated that several miRNAs were differentially expressed among ruptured aneurysm patients and healthy participants, and plasma miRNAs may be novel diagnostic biomarkers in intracranial aneurysm rupture.


1979 ◽  
Vol 19 (4) ◽  
pp. 373-381 ◽  
Author(s):  
HIDENORI OHTA ◽  
ZENTARO ITO ◽  
KENJI NAKAJIMA ◽  
AKIFUMI SUZUKI ◽  
TSUNEZABURO KOBAYASHI ◽  
...  

2018 ◽  
Vol 8 (10) ◽  
pp. e01060
Author(s):  
Luyue Chen ◽  
Yi Lyu ◽  
Xiaoning Lin ◽  
Minghui Sun ◽  
Wei Feng ◽  
...  

Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Roger M Krzyzewski ◽  
Magdalena K Stachura ◽  
Mariusz Krupa ◽  
Rafal Morga ◽  
Agnieszka Sagan ◽  
...  

Introduction: Recently the role of adaptive immunity has been implied by microarray studies. But the results are contradictory. T-cell infiltration is a frequent histological finding in ruptured IA, T-cell phenotype, characteristic and true quantitation remains unknown. We preformed a prospective study to determine the subpopulation and expression of activation markers of T-cells infiltrating ruptured IA in relation to peripheral blood. Hypothesis: IA have different subsets and activation levels of T-cells than peripheral blood. Methods: We collected the tissue of ruptured IA of 8 patients operated on within 24 hours after subarachnoid hemorrhage symptoms onset. IA tissue was digested, stained with fluorescently labeled monoclonal antibodies and submitted to flow cytometry. In addition we collected and analyzed venous blood from 6 age, sex and risk factor-matched controls. Results: CD4+ cells are less prevalent in IA tissue than in peripheral blood (42.14±17.28 vs. 65.88±5.32%; p=0.011), while there was no difference in CD8+ T-cells infiltrating IA (30.28±9.07 vs. 27.78±5.45%; p=0.585), and double negative (CD4-CD8-CD3+) T-cells were more prevalent in wall of IA than in circulation, (15.68±11.94 vs. 2.81±1.32%; p=0.026). Importantly, CD4+ infiltrating IA wall showed higher expression of HLA-DR (25.9±6.42 vs. 9.19± 3.58%; p<0.001) higher expression of CD 69 (26.8±19.66 vs. 2.73±0.93%; p=0.014). Similarly, there significantly more CD8+ cells showed HLA-DR+ in the IA than in blood. (45.96±15.57 vs. 22.47±11.46%; p=0.018) and CD69 (30.32±22.73 vs. 5.03±1.55%; p=0.022). Double negative cells in IA also had higher expression of HLA-DR (46.56±21.40 vs. 22.58±5.1%; p=0.025), CD69 (31.05±16.79 vs. 7.83±2.05%; p=0.016). Conclusion: The tissue of ruptured IA is highly infiltrated by T-cells which show high expression of activation markers such as CD69 or HLA-DR. The importance of these cells to immunopathogenesis of intracranial aneurysm rupture should be further characterized.


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