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Lehrer S, Rheinstein PH. Alignment of human aquaporin 4 and ß-amyloid proteins may indicate involvement of ß-amyloid in brain water homeostasis and prevention of brain edema. Chronic Dis Transl Med 2023; 9:177-181. [PMID: 37305107 PMCID: PMC10249176 DOI: 10.1002/cdt3.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 06/13/2023] Open
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Fang Y, Dai S, Jin C, Si X, Gu L, Song Z, Gao T, Chen Y, Yan Y, Yin X, Pu J, Zhang B. Aquaporin-4 Polymorphisms Are Associated With Cognitive Performance in Parkinson’s Disease. Front Aging Neurosci 2022; 13:740491. [PMID: 35356146 PMCID: PMC8959914 DOI: 10.3389/fnagi.2021.740491] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/04/2021] [Indexed: 12/29/2022] Open
Abstract
ObjectiveAquaporin-4 (AQP4) facilitates a sleep-enhanced interstitial brain waste clearance system. This study was conducted to determine the clinical implication of AQP4 polymorphisms in Parkinson’s disease (PD).MethodsThree-hundred and eighty-two patients with PD and 180 healthy controls with a mean follow-up time of 66.1 months from the Parkinson’s Progression Marker Initiative study were analyzed. We examined whether AQP4 SNPs were associated with an altered rate of motor or cognitive decline using linear mixed model and Cox regression. We then investigated whether AQP4 SNPs were associated with Aβ burden as measured by 18F Florbetapir standard uptake values. Furthermore, we examined if AQP4 SNPs moderated the association between REM sleep behavior disorder (RBD) and CSF biomarkers.ResultsIn patients with PD, AQP4 rs162009 (AA/AG vs. GG) was associated with slower dementia conversion, better performance in letter-number sequencing and symbol digit modalities, lower Aβ deposition in the putamen, anterior cingulum, and frontotemporal areas. In the subgroup of high RBD screening questionnaire score, rs162009 AA/AG had a higher CSF Aβ42 level. rs162009 AA/AG also had better performance in semantic fluency in healthy controls. Besides, rs68006382 (GG/GA vs. AA) was associated with faster progression to mild cognitive impairment, worse performance in letter-number sequencing, semantic fluency, and symbol digit modalities in patients with PD.InterpretationGenetic variations of AQP4 and subsequent alterations of glymphatic efficacy might contribute to an altered rate of cognitive decline in PD. AQP4 rs162009 is likely a novel genetic prognostic marker of glymphatic function and cognitive decline in PD.
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Affiliation(s)
- Yi Fang
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shaobing Dai
- Department of Anesthesiology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chongyao Jin
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoli Si
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Luyan Gu
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhe Song
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ting Gao
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ying Chen
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yaping Yan
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xinzhen Yin
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiali Pu
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Baorong Zhang Jiali Pu
| | - Baorong Zhang
- Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Baorong Zhang Jiali Pu
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Jia P, He J, Li Z, Wang J, Jia L, Hao R, Lai J, Zang W, Chen X, Wang J. Profiling of Blood-Brain Barrier Disruption in Mouse Intracerebral Hemorrhage Models: Collagenase Injection vs. Autologous Arterial Whole Blood Infusion. Front Cell Neurosci 2021; 15:699736. [PMID: 34512265 PMCID: PMC8427528 DOI: 10.3389/fncel.2021.699736] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 06/16/2021] [Indexed: 11/23/2022] Open
Abstract
Disruption of the blood-brain barrier (BBB) and the subsequent formation of brain edema is the most severe consequence of intracerebral hemorrhage (ICH), leading to drastic neuroinflammatory responses and neuronal cell death. A better understanding of ICH pathophysiology to develop effective therapy relies on selecting appropriate animal models. The collagenase injection ICH model and the autologous arterial whole blood infusion ICH model have been developed to investigate the pathophysiology of ICH. However, it remains unclear whether the temporal progression and the underlying mechanism of BBB breakdown are similar between these two ICH models. In this study, we aimed to determine the progression and the mechanism of BBB disruption via the two commonly used murine ICH models: the collagenase-induced ICH model (c-ICH) and the double autologous whole blood ICH model (b-ICH). Intrastriatal injection of 0.05 U collagenase or 20 μL autologous blood was used for a comparable hematoma volume in these two ICH models. Then we analyzed BBB permeability using Evan’s blue and IgG extravasation, evaluated tight junction (TJ) damage by transmission electron microscope (TEM) and Western blotting, and assessed matrix metalloproteinase-9 (MMP-9) activity and aquaporin 4 (AQP4) mRNA expression by Gelatin gel zymography and RT-PCR, respectively. The results showed that the BBB leakage was associated with a decrease in TJ protein expression and an increase in MMP-9 activity and AQP4 expression on day 3 in the c-ICH model compared with that on day 5 in the b-ICH model. Additionally, using TEM, we found that the TJ was markedly damaged on day 3 in the c-ICH model compared with that on day 5 in the b-ICH model. In conclusion, the BBB was disrupted in the two ICH models; compared to the b-ICH model, the c-ICH model presented with a more pronounced disruption of BBB at earlier time points, suggesting that the c-ICH model might be a more suitable model for studying early BBB damage and protection after ICH.
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Affiliation(s)
- Peijun Jia
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.,School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Jinxin He
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Zefu Li
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Junmin Wang
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Lin Jia
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Ruochen Hao
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jonathan Lai
- Pre-med Track Majoring in Biology, Baylor University, Waco, TX, United States
| | - Weidong Zang
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xuemei Chen
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jian Wang
- Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
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Marazuela P, Bonaterra-Pastra A, Faura J, Penalba A, Pizarro J, Pancorbo O, Rodríguez-Luna D, Vert C, Rovira A, Pujadas F, Freijo MM, Tur S, Martínez-Zabaleta M, Cardona Portela P, Vera R, Lebrato-Hernández L, Arenillas JF, Pérez-Sánchez S, Montaner J, Delgado P, Hernández-Guillamon M. Circulating AQP4 Levels in Patients with Cerebral Amyloid Angiopathy-Associated Intracerebral Hemorrhage. J Clin Med 2021; 10:jcm10050989. [PMID: 33801197 PMCID: PMC7957864 DOI: 10.3390/jcm10050989] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 12/27/2022] Open
Abstract
Cerebral amyloid angiopathy (CAA) is a major cause of lobar intracerebral hemorrhage (ICH) in elderly patients. Growing evidence suggests a potential role of aquaporin 4 (AQP4) in amyloid-beta-associated diseases, including CAA pathology. Our aim was to investigate the circulating levels of AQP4 in a cohort of patients who had suffered a lobar ICH with a clinical diagnosis of CAA. AQP4 levels were analyzed in the serum of 60 CAA-related ICH patients and 19 non-stroke subjects by enzyme-linked immunosorbent assay (ELISA). The CAA–ICH cohort was divided according to the time point of the functional outcome evaluation: mid-term (12 ± 18.6 months) and long-term (38.5 ± 32.9 months) after the last ICH. Although no differences were found in AQP4 serum levels between cases and controls, lower levels were found in CAA patients presenting specific hemorrhagic features such as ≥2 lobar ICHs and ≥5 lobar microbleeds detected by magnetic resonance imaging (MRI). In addition, CAA-related ICH patients who presented a long-term good functional outcome had higher circulating AQP4 levels than subjects with a poor outcome or controls. Our data suggest that AQP4 could potentially predict a long-term functional outcome and may play a protective role after a lobar ICH.
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Affiliation(s)
- Paula Marazuela
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
| | - Anna Bonaterra-Pastra
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
| | - Júlia Faura
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
| | - Anna Penalba
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
| | - Jesús Pizarro
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
| | - Olalla Pancorbo
- Stroke Unit, Department of Neurology, Vall d’Hebron Hospital, 08035 Barcelona, Spain; (O.P.); (D.R.-L.)
| | - David Rodríguez-Luna
- Stroke Unit, Department of Neurology, Vall d’Hebron Hospital, 08035 Barcelona, Spain; (O.P.); (D.R.-L.)
| | - Carla Vert
- Neuroradiology, Department of Radiology, Vall d’Hebron Hospital, 08035 Barcelona, Spain; (C.V.); (A.R.)
| | - Alex Rovira
- Neuroradiology, Department of Radiology, Vall d’Hebron Hospital, 08035 Barcelona, Spain; (C.V.); (A.R.)
| | - Francesc Pujadas
- Dementia Unit, Neurology Department, Vall d’Hebron Hospital, 08035 Barcelona, Spain;
| | - M. Mar Freijo
- Neurovascular Group, Biocruces Health Research Institute, 48903 Barakaldo, Spain;
| | - Silvia Tur
- Neurology, Son Espases University Hospital, 07120 Balearic Islands, Spain;
| | | | - Pere Cardona Portela
- Department of Neurology, Bellvitge University Hospital, L’Hospitalet de Llobregat, 08907 Barcelona, Spain;
| | - Rocío Vera
- Stroke Unit, Department of Neurology, Ramon y Cajal University Hospital, 28034 Madrid, Spain;
| | | | - Juan F. Arenillas
- Stroke Program, Department of Neurology, Hospital Clínico Universitario, 47003 Valladolid, Spain;
- Clinical Neurosciences Research Group, Department of Medicine, University of Valladolid, 47003 Valladolid, Spain
| | | | - Joan Montaner
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
- Department of Neurology, Virgen Macarena University Hospital, 41009 Sevilla, Spain;
- Stroke Research Program, Institute of Biomedicine of Sevilla, IBiS, Virgen del Rocío University Hospital, University of Sevilla, 41009 Sevilla, Spain
| | - Pilar Delgado
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
| | - Mar Hernández-Guillamon
- Neurovascular Research Laboratory, Vall d’Hebron Research Institute, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain; (P.M.); (A.B.-P.); (J.F.); (A.P.); (J.P.); (J.M.); (P.D.)
- Correspondence:
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Morais Filho ABD, Rego TLDH, Mendonça LDL, Almeida SSD, Nóbrega MLD, Palmieri TDO, Giustina GZD, Melo JP, Pinheiro FI, Guzen FP. The physiopathology of spontaneous hemorrhagic stroke: a systematic review. Rev Neurosci 2021; 32:631-658. [PMID: 33594841 DOI: 10.1515/revneuro-2020-0131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/22/2021] [Indexed: 12/29/2022]
Abstract
Hemorrhagic stroke (HS) is a major cause of death and disability worldwide, despite being less common, it presents more aggressively and leads to more severe sequelae than ischemic stroke. There are two types of HS: Intracerebral Hemorrhage (ICH) and Subarachnoid Hemorrhage (SAH), differing not only in the site of bleeding, but also in the mechanisms responsible for acute and subacute symptoms. This is a systematic review of databases in search of works of the last five years relating to the comprehension of both kinds of HS. Sixty two articles composed the direct findings of the recent literature and were further characterized to construct the pathophysiology in the order of events. The road to the understanding of the spontaneous HS pathophysiology is far from complete. Our findings show specific and individual results relating to the natural history of the disease of ICH and SAH, presenting common and different risk factors, distinct and similar clinical manifestations at onset or later days to weeks, and possible complications for both.
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Ren H, Han R, Chen X, Liu X, Wan J, Wang L, Yang X, Wang J. Potential therapeutic targets for intracerebral hemorrhage-associated inflammation: An update. J Cereb Blood Flow Metab 2020; 40:1752-1768. [PMID: 32423330 PMCID: PMC7446569 DOI: 10.1177/0271678x20923551] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Intracerebral hemorrhage (ICH) is a subtype of stroke with high mortality and disability but no specific or effective treatment. In the last two decades, much has been learned about the pathologic mechanisms of ICH. It is now known that after ICH onset, immune and inflammatory responses contribute to blood-brain barrier disruption, edema development, and cell death processes, jointly resulting in secondary brain injury. However, the translation of potential therapies from preclinical to clinical success has been disappointing. With the development of new laboratory technology, recent progress has been made in the understanding of ICH pathomechanisms, and promising therapeutic targets have been identified. This review provides an update of recent progress on ICH and describes the prospects for further preclinical studies in this field. Our goal is to discuss new therapeutic targets and directions for the treatment of ICH and promote the effective transformation from preclinical to clinical trials.
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Affiliation(s)
- Honglei Ren
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ranran Han
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xuemei Chen
- Department of Human Anatomy, Basic Medical College of Zhengzhou University, Zhengzhou, China
| | - Xi Liu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jieru Wan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Limin Wang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiuli Yang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jian Wang
- Department of Human Anatomy, Basic Medical College of Zhengzhou University, Zhengzhou, China
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Ulv Larsen SM, Landolt HP, Berger W, Nedergaard M, Knudsen GM, Holst SC. Haplotype of the astrocytic water channel AQP4 is associated with slow wave energy regulation in human NREM sleep. PLoS Biol 2020; 18:e3000623. [PMID: 32369477 PMCID: PMC7199924 DOI: 10.1371/journal.pbio.3000623] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/02/2020] [Indexed: 01/06/2023] Open
Abstract
Cerebrospinal fluid (CSF) flow through the brain parenchyma is facilitated by the astrocytic water channel aquaporin 4 (AQP4). Homeostatically regulated electroencephalographic (EEG) slow waves are a hallmark of deep non-rapid eye movement (NREM) sleep and have been implicated in the regulation of parenchymal CSF flow and brain clearance. The human AQP4 gene harbors several single nucleotide polymorphisms (SNPs) associated with AQP4 expression, brain-water homeostasis, and neurodegenerative diseases. To date, their role in sleep-wake regulation is unknown. To investigate whether functional variants in AQP4 modulate human sleep, nocturnal EEG recordings and cognitive performance were investigated in 123 healthy participants genotyped for a common eight-SNP AQP4-haplotype. We show that this AQP4-haplotype is associated with distinct modulations of NREM slow wave energy, strongest in early sleep and mirrored by changes in sleepiness and reaction times during extended wakefulness. The study provides the first human evidence for a link between AQP4, deep NREM sleep, and cognitive consequences of prolonged wakefulness.
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Affiliation(s)
- Sara Marie Ulv Larsen
- Neurobiology Research Unit, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hans-Peter Landolt
- Institute of Pharmacology & Toxicology, University of Zurich, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
- Neuroscience Center Zurich, University and ETH Zurich, Zurich, Switzerland
- Sleep & Health Zurich, University Center of Competence, Zurich, Switzerland
| | - Wolfgang Berger
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
- Neuroscience Center Zurich, University and ETH Zurich, Zurich, Switzerland
- Institute of Medical Molecular Genetics, University of Zurich, Schlieren, Switzerland
| | - Maiken Nedergaard
- Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark
| | - Gitte Moos Knudsen
- Neurobiology Research Unit, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sebastian Camillo Holst
- Neurobiology Research Unit, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Sleep & Health Zurich, University Center of Competence, Zurich, Switzerland
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ERCC6L2 rs591486 polymorphism and risk for amyotrophic lateral sclerosis in Greek population. Neurol Sci 2019; 40:1237-1244. [PMID: 30879219 DOI: 10.1007/s10072-019-03825-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 03/05/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Α number of genetic variants have been associated with amyotrophic lateral sclerosis (ALS). A recent study supports that rs591486 across the ERCC6L2 gene and exposure to pesticides seem to have a joint effect on the development of Parkinson's disease, a disease which shares a few common characteristics with ALS. OBJECTIVE To detect a possible contribution of rs591486 ERCC6L2 to ALS. METHODS A total of 155 patients with ALS and 155 healthy controls were included in the study and genotyped for rs591486. Using logistic regression analyses (crude and adjusted for age and sex), rs591486 was tested for association with ALS risk. Subgroup analysis based on ALS site of onset was also performed. Cox regression analysis was applied in order for the effect of ERCC6L2 rs591486 on ALS age of onset to be tested. RESULTS Adjusted analysis showed that ERCC6L2 rs591486 was associated with an increased risk of ALS development, in dominant [odds ratio, OR (95% confidence interval, CI) 2.15 (1.04-4.46), p = 0.037] and over-dominant [OR (95%CI) = 1.91 (1.01-3.60), p = 0.043], modes. Subgroup analysis based on ALS site of onset revealed an association between ERCC6L2 rs591486 and ALS with limb onset. Results for Cox regression analysis indicated that G/A carriers had a lower age of ALS limb onset when compared to G/G carriers. CONCLUSIONS The current study provides preliminary indication for an implication of ERCC6L2 rs591486 in ALS development, as a possible genetic risk factor. These results possibly suggest that oxidative stress may be the main contributor in the pathophysiology of ALS.
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