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Han Y, Wang C, Li X, Liang G. PARP-1 dependent cell death pathway (Parthanatos) mediates early brain injury after subarachnoid hemorrhage. Eur J Pharmacol 2024; 978:176765. [PMID: 38906236 DOI: 10.1016/j.ejphar.2024.176765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 05/31/2024] [Accepted: 06/19/2024] [Indexed: 06/23/2024]
Abstract
Subarachnoid hemorrhage (SAH) is a neurological condition with high mortality and poor prognosis, and there are currently no effective therapeutic drugs available. Poly (ADP-ribose) polymerase 1 (PARP-1) dependent cell death pathway-parthanatos is closely associated with stroke. We investigated improvements in neurological function, oxidative stress, blood-brain barrier and parthanatos-related protein expression in rats with SAH after intraperitoneal administration of PARP-1 inhibitor (AG14361). Our study found that the expression of parthanatos-related proteins was significantly increased after SAH. Immunofluorescence staining showed increased expression of apoptosis-inducing factor (AIF) in the nucleus after SAH. Administration of PARP-1 inhibitor significantly reduced malondialdehyde (MDA) level and the expression of parthanatos-related proteins. Immunofluorescence staining showed that PARP-1 inhibitor reduced the expression of 8-hydroxy-2' -deoxyguanosine (8-OHdG) and thus reduced oxidative stress. Moreover, PARP-1 inhibitor could inhibit inflammation-associated proteins level and neuronal apoptosis, protect the blood-brain barrier and significantly improve neurological function after SAH. These results suggest that PARP-1 inhibitor can significantly improve SAH, and the underlying mechanism may be through inhibiting parthanatos pathway.
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Affiliation(s)
- Yuwei Han
- Institute of Neurology, General Hospital of Northern Theater Command, China
| | - Chenchen Wang
- Institute of Neurology, General Hospital of Northern Theater Command, China
| | - Xiaoming Li
- Institute of Neurology, General Hospital of Northern Theater Command, China.
| | - Guobiao Liang
- Institute of Neurology, General Hospital of Northern Theater Command, China.
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Chen S, Jiang H, He P, Tang X, Chen Q. New grading scale based on early factors for predicting delayed cerebral ischemia in patients with aneurysmal subarachnoid hemorrhage: a multicenter retrospective study. Front Neurol 2024; 15:1393733. [PMID: 38882700 PMCID: PMC11178102 DOI: 10.3389/fneur.2024.1393733] [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: 02/29/2024] [Accepted: 05/20/2024] [Indexed: 06/18/2024] Open
Abstract
Delayed cerebral ischemia (DCI) could lead to poor clinical outcome(s). The aim of the present study was to establish and validate a predictive model for DCI after aneurysmal subarachnoid hemorrhage (aSAH) based on clinical data. Data from a series of 217 consecutive patients with aSAH were reviewed and analyzed. Related risk factors within 72 h after aSAH were analyzed depending on whether DCI recurred. Least absolute shrinkage and selection operator (LASSO) analysis was performed to reduce data dimensions and screen for optimal predictors. Multivariable logistic regression was used to establish a predictive model and construct a nomogram. Receiver operating characteristic (ROC) and calibration curves were generated to assess the discriminative ability and goodness of fit of the model. Decision curve analysis was applied to evaluated the clinical applicability of the predictive model. LASSO regression identified 4 independent predictors, including Subarachnoid Hemorrhage Early Brain Edema Score (i.e., "SEBES"), World Federation of Neurosurgical Societies scale score (i.e., "WFNS"), modified Fisher Scale score, and intraventricular hemorrhage (IVH), which were incorporated into logistic regression to develop a nomogram. After verification, the area under the ROC curve for the model was 0.860. The calibration curve indicated that the predictive probability of the new model was in good agreement with the actual probability, and decision curve analysis demonstrated the clinical applicability of the model within a specified range. The prediction model could precisely calculate the probability of DCI after aSAH, and may contribute to better clinical decision-making and personalized treatment to achieve better outcomes.
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Affiliation(s)
- Shishi Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Department of Neurosurgery, Jingzhou Central Hospital, Jingzhou, China
| | - Hongxiang Jiang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Peidong He
- First School of Clinical Medicine of Wuhan University, Wuhan, China
| | - Xiangjun Tang
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Qianxue Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
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Chen Z, Zou S, Shan H, Liu J, Tian D, Wu X, Du Q, Dong X, Yang D. Longitudinal change of serum AIM2 levels after aneurysmal subarachnoid hemorrhage and its prognostic significance: a two-center prospective cohort study. Sci Rep 2024; 14:10430. [PMID: 38714826 PMCID: PMC11076522 DOI: 10.1038/s41598-024-61185-1] [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: 03/24/2024] [Accepted: 05/02/2024] [Indexed: 05/10/2024] Open
Abstract
Absent in melanoma 2 (AIM2) is implicated in neuroinflammation. Here, we explored the prognostic significance of serum AIM2 in human aneurysmal subarachnoid hemorrhage (aSAH). We conducted a consecutive enrollment of 127 patients, 56 of whom agreed with blood-drawings not only at admission but also at days 1, 2, 3, 5, 7 and 10 days after aSAH. Serum AIM2 levels of patients and 56 healthy controls were measured. Disease severity was assessed using the modified Fisher scale (mFisher) and World Federation of Neurological Surgeons Scale (WFNS). Neurological outcome at poststroke 90 days was evaluated via the modified Rankin Scale (mRS). Univariate analysis and multivariate analysis were sequentially done to ascertain relationship between serum AIM2 levels, severity, delayed cerebral ischemia (DCI) and 90-day poor prognosis (mRS scores of 3-6). Patients, in comparison to controls, had a significant elevation of serum AIM2 levels at admission and at days 1, 2, 3, 5, 7 and 10 days after aSAH, with the highest levels at days 1, 2, 3 and 5. AIM2 levels were independently correlated with WFNS scores and mFisher scores. Significantly higher serum AIM2 levels were detected in patients with a poor prognosis than in those with a good prognosis, as well as in patients with DCI than in those without DCI. Moreover, serum AIM2 levels independently predicted a poor prognosis and DCI, and were linearly correlated with their risks. Using subgroup analysis, there were no significant interactions between serum AIM2 levels and age, gender, hypertension and so on. There were substantially high predictive abilities of serum AIM2 for poor prognosis and DCI under the receiver operating characteristic curve. The combination models of DCI and poor prognosis, in which serum AIM2, WFNS scores and mFisher scores were incorporated, showed higher discriminatory efficiencies than anyone of the preceding three variables. Moreover, the models are delineated using the nomogram, and performed well under the calibration curve and decision curve. Serum AIM2 levels, with a substantial enhancement during early phase after aSAH, are closely related to bleeding severity, poor 90-day prognosis and DCI of patients, substantializing serum AIM2 as a potential prognostic biomarker of aSAH.
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Affiliation(s)
- Ziyin Chen
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, 310053, China
| | - Shengdong Zou
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, 310053, China
| | - Hao Shan
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, No. 548 Binwen Road, Hangzhou, 310053, China
| | - Jin Liu
- Department of Neurosurgery, The Sixth Affiliated Hospital of Wenzhou Medical University, No. 15 Dazhong Road, Lishui, 323000, China
| | - Da Tian
- Department of Neurosurgery, The Sixth Affiliated Hospital of Wenzhou Medical University, No. 15 Dazhong Road, Lishui, 323000, China
| | - Xiaoyu Wu
- Department of Neurosurgery, The Sixth Affiliated Hospital of Wenzhou Medical University, No. 15 Dazhong Road, Lishui, 323000, China
| | - Quan Du
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, No. 261 Huansha Road, Hangzhou, 310006, China
| | - Xiaoqiao Dong
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, No. 261 Huansha Road, Hangzhou, 310006, China
| | - Dingbo Yang
- Department of Neurosurgery, Affiliated Hangzhou First People's Hospital, Westlake University School of Medicine, No. 261 Huansha Road, Hangzhou, 310006, China.
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Kang J, Tian S, Zhang L, Yang G. Ferroptosis in early brain injury after subarachnoid hemorrhage: review of literature. Chin Neurosurg J 2024; 10:6. [PMID: 38347652 PMCID: PMC10863120 DOI: 10.1186/s41016-024-00357-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/28/2024] [Indexed: 02/15/2024] Open
Abstract
Spontaneous subarachnoid hemorrhage (SAH), mainly caused by ruptured intracranial aneurysms, is a serious acute cerebrovascular disease. Early brain injury (EBI) is all brain injury occurring within 72 h after SAH, mainly including increased intracranial pressure, decreased cerebral blood flow, disruption of the blood-brain barrier, brain edema, oxidative stress, and neuroinflammation. It activates cell death pathways, leading to neuronal and glial cell death, and is significantly associated with poor prognosis. Ferroptosis is characterized by iron-dependent accumulation of lipid peroxides and is involved in the process of neuron and glial cell death in early brain injury. This paper reviews the research progress of ferroptosis in early brain injury after subarachnoid hemorrhage and provides new ideas for future research.
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Affiliation(s)
- Junlin Kang
- The First Hospital of Lanzhou University, Lanzhou City, Gansu Province, China
| | - Shilai Tian
- The First Hospital of Lanzhou University, Lanzhou City, Gansu Province, China
| | - Lei Zhang
- Gansu Provincial Hospital, Lanzhou City, Gansu Province, China
| | - Gang Yang
- The First Hospital of Lanzhou University, Lanzhou City, Gansu Province, China.
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Motawi TK, Sadik NAH, Shaker OG, Ghaleb MMH, Elbaz EM. Expression, Functional Polymorphism, and Diagnostic Values of MIAT rs2331291 and H19 rs217727 Long Non-Coding RNAs in Cerebral Ischemic Stroke Egyptian Patients. Int J Mol Sci 2024; 25:842. [PMID: 38255915 PMCID: PMC10815378 DOI: 10.3390/ijms25020842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/24/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Cerebral ischemic stroke (CIS) is a severe cerebral vascular event. This research aimed to evaluate the role of single-nucleotide polymorphisms (SNPs) of the lncRNAs MIAT rs2331291 and H19 rs217727 and epigenetic methylation in the expression patterns of serum lncRNA H19 in CIS Egyptian patients. It included 80 CIS cases and 40 healthy subjects. Serum MIAT expression levels decreased, whereas serum H19 expression levels increased among CIS compared to controls. For MIAT rs2331291, there were significant differences in the genotypic and allelic frequencies between the CIS and healthy subjects at p = 0.02 and p = 0.0001, respectively. Our findings illustrated a significantly increased MIAT T/T genotype frequency in hypertensive CIS compared to non-hypertensive CIS at p = 0.004. However, H19 rs217727 gene frequency C/C was not significantly higher in non-hypertensive CIS than in hypertensive CIS. The methylation of the H19 gene promoter was significantly higher in CIS patients compared to healthy subjects. The level of MIAT was positively correlated with serum H19 in CIS. Receiver operating characteristics (ROC) analysis revealed that serum MIAT and H19 have a high diagnostic potential for distinguishing CIS subjects from healthy ones. In conclusion, the MIAT-rs2331291 polymorphism might serve as a novel potential indicator of CIS.
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Affiliation(s)
- Tarek K. Motawi
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | | | - Olfat G. Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11562, Egypt
| | | | - Eman M. Elbaz
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Du W, Yang J, Lou Y, You J, Wang Q. Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage. Front Neurol 2024; 14:1310327. [PMID: 38234976 PMCID: PMC10793108 DOI: 10.3389/fneur.2023.1310327] [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: 10/09/2023] [Accepted: 12/13/2023] [Indexed: 01/19/2024] Open
Abstract
Objective This study aimed to explore the relationship between baseline bicarbonate levels and 30-day mortality in individuals with non-traumatic subarachnoid hemorrhage (SAH). Methods Patients with non-traumatic SAH were chosen from the Medical Information Mart for Intensive Care (MIMIC)-IV database. The relationship between baseline bicarbonate and 30-day mortality was examined using Cox regression models. Restricted cubic splines were used to test the hypothesis that there was an association between bicarbonate and mortality. With the use of Kaplan-Meier survival curve analysis, we looked deeper into the validity of these correlations. To find subgroups with differences, interaction tests were utilized. Results This retrospective cohort study consisted of 521 participants in total. Bicarbonate had a negative association with death at 30 days (HR = 0.93, 95%CI: 0.88-0.98, p = 0.004). Next, we divided bicarbonate into quartile groups. In comparison to the reference group Q1 (20 mEq/L), groups Q3 (23-25 mEq/L) and Q4 (26 mEq/L) had adjusted HR values of 0.47 (95%CI: 0.27-0.82, p = 0.007) and 0.56 (95%CI: 0.31-0.99, p = 0.047). No definite conclusions can be derived from this study, since there is no obvious curve link between baseline bicarbonate and 30-day mortality. Patients' 30-day mortality increased statistically significantly (p < 0.001, K-M analysis) in patients with low bicarbonate levels. The relationship between bicarbonate and 30-day mortality remained consistent in the stratified analysis, with no observed interactions. Conclusion Finally, 30-day mortality was negatively associated with baseline bicarbonate levels. Patients with non-traumatic SAH are more at risk of mortality if their bicarbonate levels are low.
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Affiliation(s)
- Wenyuan Du
- Department of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, China
| | - Jingmian Yang
- Department of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, China
| | - Yanfang Lou
- Department of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, China
| | - Jiahua You
- Department of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, China
| | - Qiang Wang
- Department of Cardiology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, China
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