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Xiong J, Zhao C, Li J, Li Y. A systematic review and meta-analysis of the linkage between low vitamin D and the risk as well as the prognosis of stroke. Brain Behav 2024; 14:e3577. [PMID: 38873864 PMCID: PMC11177038 DOI: 10.1002/brb3.3577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 06/15/2024] Open
Abstract
OBJECTIVE The research intended to probe the connection between the risk of stroke and serum vitamin D levels. METHODS Three electronic databases (Cochrane Library, EMBASE, PubMed) were searched according to the subject terms from inception until July 29, 2022, and retrieved researches were screened on the basis of inclusion and exclusion criteria. Two investigators conducted the quality assessment and data extraction. Using Stata 16.0 software, a meta-analysis was conducted on the extracted data. FINDINGS In total, 27 studies with 45,302 participants were included. Among these studies, 20 focused on stroke risk, while 7 examined stroke prognosis. According to the meta-analysis findings, it was observed that a higher stroke risk is connected to reduced levels of serum vitamin D. This association was reflected in a combined relative risk (RR) of 1 .28 (95% confidence interval (CI): 1.15-1.42) and a worse prognosis after stroke (RR = 2.95, 95% CI: 1.90-4.60). Additional analysis indicated that no apparent relationship between a decrease in vitamin D and the probability of experiencing a hemorrhagic stroke was found. The RR found was 1.93 (95% CI: 0.95-3.95). On the other hand, it was observed that a reduction in serum vitamin D levels was linked to an elevated likelihood of developing an ischemic stroke. The RR identified was 1.72 (95% CI: 1.78-2.03). Moreover, a lower level of vitamin D in the bloodstream was associated with a more unfavorable prognosis for individuals who suffered from a stroke. The RR for this correlation was 2.95 (95% CI: 1.90-4.60). However, further research is required to confirm the above-mentioned findings. CONCLUSION In conclusion, lower concentration vitamin D was found to be related to an increased risk of stroke, which could mainly be reflected in ischemic stroke patients but not in patients with hemorrhagic stroke. A lower serum vitamin D level was correlative with the poor prognosis of stroke.
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Affiliation(s)
- Jianrong Xiong
- Department of Rehabilitation Medicine, Fourth Affiliated Hospital of Zhejiang University Medical College, Yiwu, Zhejiang, China
| | - Chenliang Zhao
- Intensive Care Medicine, Heyou Hospital, Foshan, Guangzhou, China
| | - Jinhui Li
- Department of Chinese Medicine & Rehabilitation Medicine, The Second Affiliated Hospital of Zhejiang University Medical College, Hangzhou, Zhejiang, China
| | - Yongxiang Li
- Department of Rehabilitation Medicine, Fourth Affiliated Hospital of Zhejiang University Medical College, Yiwu, Zhejiang, China
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2
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Cui P, Hou H, Song B, Xia Z, Xu Y. Vitamin D and ischemic stroke - Association, mechanisms, and therapeutics. Ageing Res Rev 2024; 96:102244. [PMID: 38395199 DOI: 10.1016/j.arr.2024.102244] [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: 08/17/2023] [Revised: 02/07/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Confronting the rising tide of ischemic stroke and its associated mortality and morbidity with ageing, prevention and acute management of ischemic stroke is of paramount importance. Mounting observational studies have established a non-linear association of vitamin D status with cardiovascular diseases, including ischemic stroke. Paradoxically, current clinical trials fail to demonstrate the cardiovascular benefits of vitamin D supplementation. We aim to update recent clinical and experimental findings on the role of vitamin D in the disease course of ischemic stroke, from its onset, progression, recovery, to recurrence, and the established and alternative possible pathophysiological mechanisms. This review justifies the necessities to address stroke etiological subtypes and focus on vitamin D-deficient subjects for investigating the potential of vitamin D supplementation as a preventive and therapeutic approach for ischemic stroke. Well-powered clinical trials are warranted to determine the efficacy, safety, timing, target individuals, optimal dosages, and target 25OHD concentrations of vitamin D supplementation in the prevention and treatment of ischemic stroke.
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Affiliation(s)
- Pan Cui
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; NHC Key Laboratory of Prevention and Treatment of Cerebrovascular Diseases, Zhengzhou, Henan, China; Clinical Systems Biology Laboratories, Translation Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Haiman Hou
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Bo Song
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; NHC Key Laboratory of Prevention and Treatment of Cerebrovascular Diseases, Zhengzhou, Henan, China
| | - Zongping Xia
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; NHC Key Laboratory of Prevention and Treatment of Cerebrovascular Diseases, Zhengzhou, Henan, China; Clinical Systems Biology Laboratories, Translation Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China.
| | - Yuming Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; NHC Key Laboratory of Prevention and Treatment of Cerebrovascular Diseases, Zhengzhou, Henan, China; Henan Key Laboratory of Cerebrovascular Diseases, Zhengzhou University, Zhengzhou, Henan, China.
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3
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Role of Vitamin D Deficiency in the Pathogenesis of Cardiovascular and Cerebrovascular Diseases. Nutrients 2023; 15:nu15020334. [PMID: 36678205 PMCID: PMC9864832 DOI: 10.3390/nu15020334] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 01/12/2023] Open
Abstract
Deficiency in vitamin D (VitD), a lipid-soluble vitamin and steroid hormone, affects approximately 24% to 40% of the population of the Western world. In addition to its well-documented effects on the musculoskeletal system, VitD also contributes importantly to the promotion and preservation of cardiovascular health via modulating the immune and inflammatory functions and regulating cell proliferation and migration, endothelial function, renin expression, and extracellular matrix homeostasis. This brief overview focuses on the cardiovascular and cerebrovascular effects of VitD and the cellular, molecular, and functional changes that occur in the circulatory system in VitD deficiency (VDD). It explores the links among VDD and adverse vascular remodeling, endothelial dysfunction, vascular inflammation, and increased risk for cardiovascular and cerebrovascular diseases. Improved understanding of the complex role of VDD in the pathogenesis of atherosclerotic cardiovascular diseases, stroke, and vascular cognitive impairment is crucial for all cardiologists, dietitians, and geriatricians, as VDD presents an easy target for intervention.
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Zhang SR, Kim HA, Chu HX, Lee S, Evans MA, Li X, Ma H, Drummond GR, Sobey CG, Phan TG. Large-Scale Multivariate Analysis to Interrogate an Animal Model of Stroke: Novel Insights Into Poststroke Pathology. Stroke 2021; 52:3661-3669. [PMID: 34619986 DOI: 10.1161/strokeaha.121.036500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Shenpeng R Zhang
- Department of Physiology, Anatomy and Microbiology and Centre for Cardiovascular Biology and Disease Research, School of Life Sciences (S.R.Z., H.A.K., M.A.E., G.R.D., C.G.S.), La Trobe University, Bundoora, Victoria, Australia.,Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Hyun Ah Kim
- Department of Physiology, Anatomy and Microbiology and Centre for Cardiovascular Biology and Disease Research, School of Life Sciences (S.R.Z., H.A.K., M.A.E., G.R.D., C.G.S.), La Trobe University, Bundoora, Victoria, Australia.,Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Hannah X Chu
- Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Seyoung Lee
- Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Megan A Evans
- Department of Physiology, Anatomy and Microbiology and Centre for Cardiovascular Biology and Disease Research, School of Life Sciences (S.R.Z., H.A.K., M.A.E., G.R.D., C.G.S.), La Trobe University, Bundoora, Victoria, Australia.,Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Xia Li
- Department of Mathematics and Statistics (X.L.), La Trobe University, Bundoora, Victoria, Australia
| | - Henry Ma
- Clinical Trials, Imaging and Informatics Division, Stroke and Ageing Research, Department of Medicine, School of Clinical Sciences at Monash Health (H.M., T.G.P.), Monash University, Clayton, Victoria, Australia
| | - Grant R Drummond
- Department of Physiology, Anatomy and Microbiology and Centre for Cardiovascular Biology and Disease Research, School of Life Sciences (S.R.Z., H.A.K., M.A.E., G.R.D., C.G.S.), La Trobe University, Bundoora, Victoria, Australia.,Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Christopher G Sobey
- Department of Physiology, Anatomy and Microbiology and Centre for Cardiovascular Biology and Disease Research, School of Life Sciences (S.R.Z., H.A.K., M.A.E., G.R.D., C.G.S.), La Trobe University, Bundoora, Victoria, Australia.,Cardiovascular Disease Program, Biomedicine Discovery Institute and Department of Pharmacology (S.R.Z., H.A.K., H.X.C., S.L., M.A.E., G.R.D., C.G.S.), Monash University, Clayton, Victoria, Australia
| | - Thanh G Phan
- Clinical Trials, Imaging and Informatics Division, Stroke and Ageing Research, Department of Medicine, School of Clinical Sciences at Monash Health (H.M., T.G.P.), Monash University, Clayton, Victoria, Australia
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5
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Al-Ishaq RK, Kubatka P, Brozmanova M, Gazdikova K, Caprnda M, Büsselberg D. Health implication of vitamin D on the cardiovascular and the renal system. Arch Physiol Biochem 2021; 127:195-209. [PMID: 31291127 DOI: 10.1080/13813455.2019.1628064] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Vitamin D regulates the calcium and phosphorus balance in the body. The activated form of vitamin D (1 α,25-dihydroxyvitamin D) binds to vitamin D receptor which regulates genes that control cell proliferation, differentiation and apoptosis. In the cardiovascular system, the vitamin D receptor is present in cardiomyocytes and the arterial wall. A clear correlation between vitamin D level and cardiovascular diseases is established. Vitamin D deficiency affects the renin-angiotensin system leading to ventricular hypertrophy and eventually to stroke. While clinical trials highlighted the positive effects of vitamin D supplements on cardiovascular disease these still need to be confirmed. This review outlines the association between vitamin D and cardiovascular and renal disease summarising the experimental data of selective cardiovascular disorders.
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Affiliation(s)
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine, Comenius University, in Bratislava, Martin, Slovakia
| | - Martina Brozmanova
- Department of Pathophysiology, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
- Biomedical Center Martin, Jessenius Faculty of Medicine, Comenius University, in Bratislava, Martin, Slovakia
| | - Katarina Gazdikova
- Department of Nutrition, Faculty of Nursing and Professional Health Studies, Slovak Medical University, Bratislava, Slovak
- Department of General Medicine, Faculty of Medicine, Slovak Medical University, Bratislava, Slovak
| | - Martin Caprnda
- 1st Department of Internal Medicine, Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovakia
| | - Dietrich Büsselberg
- Department of Physiology and Biophysics, Weill Cornell College of Medicine, Doha, Qatar
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Pál É, Hricisák L, Lékai Á, Nagy D, Fülöp Á, Erben RG, Várbíró S, Sándor P, Benyó Z. Ablation of Vitamin D Signaling Compromises Cerebrovascular Adaptation to Carotid Artery Occlusion in Mice. Cells 2020; 9:cells9061457. [PMID: 32545499 PMCID: PMC7349396 DOI: 10.3390/cells9061457] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 12/14/2022] Open
Abstract
Vitamin D insufficiency has been associated with increased incidence and severity of cerebrovascular disorders. We analyzed the impact of impaired vitamin D signaling on the anatomical and functional aspects of cerebrovascular adaptation to unilateral carotid artery occlusion (CAO), a common consequence of atherosclerosis and cause of ischemic stroke. Cerebrocortical blood flow (CoBF) showed a significantly increased drop and delayed recovery after CAO in mice carrying a functionally inactive vitamin D receptor (VDR) with the most sustained perfusion deficit in the temporal cortex. To identify the cause(s) for this altered adaptation, the extent of compensatory blood flow increase in the contralateral carotid artery and the morphology of pial collaterals between the anterior and middle cerebral arteries were determined. Whereas VDR deficiency had no significant influence on the contralateral carotid arterial blood flow increase, it was associated with decreased number and increased tortuosity of pial anastomoses resulting in unfavorable changes of the intracranial collateral circulation. These results indicate that VDR deficiency compromises the cerebrovascular adaptation to CAO with the most sustained consequences in the temporal cortex. The dysregulation can be attributed to the altered development and function of pial collateral circulation whereas extracranial vessels may not be impaired.
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Affiliation(s)
- Éva Pál
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
- Correspondence: (É.P.); (Z.B.); Tel.: +36-1-210-0306 (É.P.); +36-1-210-0306 (Z.B.)
| | - László Hricisák
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
| | - Ágnes Lékai
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
| | - Dorina Nagy
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
| | - Ágnes Fülöp
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
| | - Reinhold G. Erben
- Department of Biomedical Sciences, University of Veterinary Medicine Vienna, 1210 Vienna, Austria;
| | - Szabolcs Várbíró
- Department of Obstetrics and Gynecology, Semmelweis University, 1082 Budapest, Hungary;
| | - Péter Sándor
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
| | - Zoltán Benyó
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (L.H.); (Á.L.); (D.N.); (Á.F.); (P.S.)
- Correspondence: (É.P.); (Z.B.); Tel.: +36-1-210-0306 (É.P.); +36-1-210-0306 (Z.B.)
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7
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Sayeed I, Turan N, Stein DG, Wali B. Vitamin D deficiency increases blood-brain barrier dysfunction after ischemic stroke in male rats. Exp Neurol 2018; 312:63-71. [PMID: 30502340 DOI: 10.1016/j.expneurol.2018.11.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/05/2018] [Accepted: 11/22/2018] [Indexed: 12/18/2022]
Abstract
Because vitamin D hormone deficiency (VDHdef) can worsen severity and outcome for ischemic stroke, we examined the role of VDH in maintaining blood-brain-barrier (BBB integrity) in a rat model of stroke. In most types of stroke, the BBB is markedly compromised, potentially leading to a cascade of injury processes and functional deficits, so we examined a number of biomarkers associated with BBB disruption to determine whether VDH deficiency would further compromise the BBB following a stroke. Male Wistar rats were randomly assigned to one of two diet cohorts, VDH-sufficient (VDHsuf) and VDHdef. The VDHsuf group was fed standard rat chow and the VDHdef group got a VDH-null version of the same diet for 8 weeks. Animals from both cohorts were subjected to transient middle cerebral artery occlusion (tMCAO) surgery, killed at 72 h post-stroke, and their brains evaluated for BBB permeability and injury severity using expression of immunoglobulin (IgG), matrix metalloproteinase-9 (MMP-9) activity and alteration of tight junction (TJ) proteins as markers of BBB disruption. We also evaluated modulation of glucose transporter-1 (GLUT1), osteopontin (OPN), β-catenin and vitamin D receptor (VDR) expression in VDHsuf and VDHdef subjects. At the time of MCAO, rats on the VDHdef diet had circulating VDH levels one-fourth that of rats fed control chow. IgG extravasation after MCAO, indicating more severe BBB injury, was significantly higher in the MCAO+VDHdef than the MCAO+VDHsuf rats. Following MCAO, expression of MMP-9, GLUT1, VDR and OPN increased and the TJ proteins occludin and claudin-5 decreased significantly in the VDHdef compared to the VDHsuf group. We also observed significantly lower expression of β-catenin in the MCAO group of both VDHsuf and VDHdef rats. Under these conditions, VDH deficiency itself can compromise the BBB. We think that low serum VDH levels are likely to complicate stroke severity and its chronic consequences.
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Affiliation(s)
- Iqbal Sayeed
- Department of Emergency Medicine, Brain Research Laboratory, Emory University, Atlanta, GA 30322, USA
| | - Nefize Turan
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Donald G Stein
- Department of Emergency Medicine, Brain Research Laboratory, Emory University, Atlanta, GA 30322, USA
| | - Bushra Wali
- Department of Emergency Medicine, Brain Research Laboratory, Emory University, Atlanta, GA 30322, USA.
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Evans MA, Kim HA, Ling YH, Uong S, Vinh A, De Silva TM, Arumugam TV, Clarkson AN, Zosky GR, Drummond GR, Broughton BRS, Sobey CG. Vitamin D 3 Supplementation Reduces Subsequent Brain Injury and Inflammation Associated with Ischemic Stroke. Neuromolecular Med 2018; 20:147-159. [PMID: 29476479 PMCID: PMC5834596 DOI: 10.1007/s12017-018-8484-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/16/2018] [Indexed: 12/26/2022]
Abstract
Acute inflammation can exacerbate brain injury after ischemic stroke. Beyond its well-characterized role in calcium metabolism, it is becoming increasingly appreciated that the active form of vitamin D, 1,25-dihydroxyvitamin D3 (1,25-VitD3), has potent immunomodulatory properties. Here, we aimed to determine whether 1,25-VitD3 supplementation could reduce subsequent brain injury and associated inflammation after ischemic stroke. Male C57Bl6 mice were randomly assigned to be administered either 1,25-VitD3 (100 ng/kg/day) or vehicle i.p. for 5 day prior to stroke. Stroke was induced via middle cerebral artery occlusion for 1 h followed by 23 h reperfusion. At 24 h post-stroke, we assessed infarct volume, functional deficit, expression of inflammatory mediators and numbers of infiltrating immune cells. Supplementation with 1,25-VitD3 reduced infarct volume by 50% compared to vehicle. Expression of pro-inflammatory mediators IL-6, IL-1β, IL-23a, TGF-β and NADPH oxidase-2 was reduced in brains of mice that received 1,25-VitD3 versus vehicle. Brain expression of the T regulatory cell marker, Foxp3, was higher in mice supplemented with 1,25-VitD3 versus vehicle, while expression of the transcription factor, ROR-γ, was decreased, suggestive of a reduced Th17/γδ T cell response. Immunohistochemistry indicated that similar numbers of neutrophils and T cells were present in the ischemic hemispheres of 1,25-VitD3- and vehicle-supplemented mice. At this early time point, there were also no differences in the impairment of motor function. These data indicate that prior administration of exogenous vitamin D, even to vitamin D-replete mice, can attenuate infarct development and exert acute anti-inflammatory actions in the ischemic and reperfused brain.
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Affiliation(s)
- Megan A Evans
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Hyun Ah Kim
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Yeong Hann Ling
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Sandy Uong
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Antony Vinh
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - T Michael De Silva
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Thiruma V Arumugam
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Andrew N Clarkson
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin, 9054, New Zealand
- School of Life Sciences, La Trobe University, Bundoora, VIC, 3083, Australia
| | - Graeme R Zosky
- School of Medicine, Faculty of Health Science, University of Tasmania, Hobart, TAS, 7005, Australia
| | - Grant R Drummond
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Brad R S Broughton
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Christopher G Sobey
- Vascular Biology Immunopharmacology Group, Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, VIC, 3083, Australia.
- Cardiovascular Disease Program, Department of Pharmacology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia.
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Xie C, Gu A, Cai J, Wu Y, Chen R. Curcumin protects neural cells against ischemic injury in N2a cells and mouse brain with ischemic stroke. Brain Behav 2018; 8:e00921. [PMID: 29484272 PMCID: PMC5822585 DOI: 10.1002/brb3.921] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 12/04/2017] [Accepted: 12/21/2017] [Indexed: 01/15/2023] Open
Abstract
Background and Purpose Curcumin, a natural antioxidant isolated from Curcuma longa, has been reported to exert neuroprotective effect in animal models of ischemic stroke. However, the underlying mechanism is still not fully understood. The purpose of this study was to investigate the effect of curcumin treatment on neuronal apoptosis in the periinfarct cortex after cerebral ischemia/reperfusion (I/R) injury and in mouse N2a cells after oxygen-glucose deprivation/reoxygenation (OGD/R) injury and its underlying mechanism. Methods The cerebral I/R injury was established by 1-hr middle cerebral artery occlusion (MCAO) and reperfusion in mice. Infarct volume was determined by TTC staining, and neurological score was evaluated by mNSS. Cell morphology in the ischemic boundary zone were detected by HE staining. The number and apoptotic rate of neurons in ischemic boundary zone were assayed by immunohistochemistry and TUNEL, respectively. Mouse neuroblastoma N2a cells were subjected to OGD/R. Cell viability was assessed with CCK-8. The mitochondrial membrane potential was measured using JC-1 staining. The expression of Bax, Bcl-2, and caspase-3 was detected using Western blotting. Besides, cellular distribution of Bax was determined by immunofluorescence assays. Results Curcumin treatment reduced infarct volume, improved neurological function, alleviated the morphological damage of neurons, and increased neuronal survival rate after I/R injury in vivo. Moreover, curcumin treatment improved cell viability, reduced cell apoptosis, increased Bcl-2 protein levels while decreased Bax and caspase-3 expressions in mouse N2a cells after OGD/R injury. Besides, curcumin treatment inhibited Bax activation and maintained mitochondrial membrane integrity. Conclusion Curcumin promotes neuron survival in vivo and in vitro to exert neuroprotective effects against ischemia injury. Moreover, our results for the first time demonstrated curcumin inhibited ischemia-induced mitochondrial apoptosis via restricting Bax activation, which may be one of the possible mechanisms underlying the neuroprotective effects of curcumin.
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Affiliation(s)
- Cai‐Jun Xie
- Department of NeurosurgeryGuangdong Provincial Hospital of Chinese MedicineGuangzhouChina
| | - Ai‐Ping Gu
- Department of OphthalmologyGuangdong Second Provincial General HospitalGuangzhouChina
| | - Jun Cai
- Department of NeurosurgeryGuangdong Provincial Hospital of Chinese MedicineGuangzhouChina
| | - Yi Wu
- Department of OphthalmologyGuangdong Second Provincial General HospitalGuangzhouChina
| | - Rui‐Cong Chen
- Department of NeurosurgeryGuangdong Provincial Hospital of Chinese MedicineGuangzhouChina
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