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Zhang X, Liu Z, Li Z, Qi L, Huang T, Li F, Li M, Wang Y, Ma Z, Gao Y. Ferroptosis pathways: Unveiling the neuroprotective power of cistache deserticola phenylethanoid glycosides. JOURNAL OF ETHNOPHARMACOLOGY 2024; 333:118465. [PMID: 38944360 DOI: 10.1016/j.jep.2024.118465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 05/22/2024] [Accepted: 06/14/2024] [Indexed: 07/01/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cistanche deserticola is a kind of parasitic plant living in the roots of desert trees. It is a rare Chinese medicine, which has the effect of tonifying kidney Yang, benefiting essence and blood and moistening the intestinal tract. Cistache deserticola phenylethanoid glycoside (PGS), an active component found in Cistanche deserticola Ma, have potential kidney tonifying, intellectual enhancing, and neuroprotective effects. Cistanche total glycoside capsule has been marketed to treat vascular dementia disease. AIM OF THE STUDY To identify the potential renal, intellectual enhancing and neuroprotective effects of PGS and explore the exact targets and mechanisms of PGS. MATERIALS AND METHODS This study systematically investigated the four types of pathways leading to ferroptosis through transcriptome, metabolome, ultrastructure and molecular biology techniques and explored the molecular mechanism by which multiple PGS targets and pathways synergistically exert neuroprotective effects on hypoxia. RESULTS PGS alleviated learning and memory dysfunction and pathological injury in mice exposed to hypobaric hypoxia by attenuating hypobaric hypoxia-induced hippocampal histopathological damage, impairing blood‒brain barrier integrity, increasing oxidative stress levels, and increasing the expression of cognitive proteins. PGS reduced the formation of lipid peroxides and improved ferroptosis by upregulating the GPX-4/SCL7A311 axis and downregulating the ACSL4/LPCAT3/LOX axis. PGS also reduced ferroptosis by facilitating cellular Fe2+ efflux and regulating mitochondrial Fe2+ transport and effectively antagonized cell ferroptosis induced by erastin (a ferroptosis inducer). CONCLUSIONS This study demonstrated the mechanism by which PGS prevents hypobaric hypoxic nerve injury through four types of ferroptosis pathways, achieved neuroprotective effects and alleviated learning and memory dysfunction in hypobaric hypoxia mice. This study provides a theoretical basis for the development and application of PGS.
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Affiliation(s)
- Xianxie Zhang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Zuoxu Liu
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Zhihui Li
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Ling Qi
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Tianke Huang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Fang Li
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Maoxing Li
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Yuguang Wang
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Zengchun Ma
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China
| | - Yue Gao
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China; Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, 100850, Beijing, China.
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Díez-Cirarda M, Yus M, Gómez-Ruiz N, Polidura C, Gil-Martínez L, Delgado-Alonso C, Jorquera M, Gómez-Pinedo U, Matias-Guiu J, Arrazola J, Matias-Guiu JA. Multimodal neuroimaging in post-COVID syndrome and correlation with cognition. Brain 2023; 146:2142-2152. [PMID: 36288544 PMCID: PMC9620345 DOI: 10.1093/brain/awac384] [Citation(s) in RCA: 61] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/02/2022] [Accepted: 09/23/2022] [Indexed: 11/12/2022] Open
Abstract
Brain changes have been reported in the first weeks after SARS-CoV-2 infection. However, limited literature exists about brain alterations in post-COVID syndrome, a condition increasingly associated with cognitive impairment. The present study aimed to evaluate brain functional and structural alterations in patients with post-COVID syndrome, and assess whether these brain alterations were related to cognitive dysfunction. Eighty-six patients with post-COVID syndrome and 36 healthy controls were recruited and underwent neuroimaging acquisition and a comprehensive neuropsychological assessment. Cognitive and neuroimaging examinations were performed 11 months after the first symptoms of SARS-CoV-2. Whole-brain functional connectivity analysis was performed. Voxel-based morphometry was performed to evaluate grey matter volume, and diffusion tensor imaging was carried out to analyse white-matter alterations. Correlations between cognition and brain changes were conducted and Bonferroni corrected. Post-COVID syndrome patients presented with functional connectivity changes, characterized by hypoconnectivity between left and right parahippocampal areas, and between bilateral orbitofrontal and cerebellar areas compared to controls. These alterations were accompanied by reduced grey matter volume in cortical, limbic and cerebellar areas, and alterations in white matter axial and mean diffusivity. Grey matter volume loss showed significant associations with cognitive dysfunction. These cognitive and brain alterations were more pronounced in hospitalized patients compared to non-hospitalized patients. No associations with vaccination status were found. The present study shows persistent structural and functional brain abnormalities 11 months after the acute infection. These changes are associated with cognitive dysfunction and contribute to a better understanding of the pathophysiology of the post-COVID syndrome.
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Affiliation(s)
- María Díez-Cirarda
- Department of Neurology. Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Miguel Yus
- Department of Radiology, Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Natividad Gómez-Ruiz
- Department of Radiology, Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Carmen Polidura
- Department of Radiology, Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Lidia Gil-Martínez
- Department of Radiology, Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Cristina Delgado-Alonso
- Department of Neurology. Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Manuela Jorquera
- Department of Radiology, Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Ulises Gómez-Pinedo
- Department of Neurology. Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Jorge Matias-Guiu
- Department of Neurology. Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Juan Arrazola
- Department of Radiology, Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
| | - Jordi A Matias-Guiu
- Department of Neurology. Hospital Clínico San Carlos. Health Research Institute “San Carlos” (IdISCC). Universidad Complutense de Madrid. Madrid, Spain
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High-Altitude Hypoxia Exposure Induces Iron Overload and Ferroptosis in Adipose Tissue. Antioxidants (Basel) 2022; 11:antiox11122367. [PMID: 36552575 PMCID: PMC9774922 DOI: 10.3390/antiox11122367] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/25/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022] Open
Abstract
High altitude (HA) has become one of the most challenging environments featuring hypobaric hypoxia, which seriously threatens public health, hence its gradual attraction of public attention over the past decade. The purpose of this study is to investigate the effect of HA hypoxia on iron levels, redox state, inflammation, and ferroptosis in adipose tissue. Here, 40 mice were randomly divided into two groups: the sea-level group and HA hypoxia group (altitude of 5000 m, treatment for 4 weeks). Total iron contents, ferrous iron contents, ROS generation, lipid peroxidation, the oxidative enzyme system, proinflammatory factor secretion, and ferroptosis-related biomarkers were examined, respectively. According to the results, HA exposure increases total iron and ferrous iron levels in both WAT and BAT. Meanwhile, ROS release, MDA, 4-HNE elevation, GSH depletion, as well as the decrease in SOD, CAT, and GSH-Px activities further evidenced a phenotype of redox imbalance in adipose tissue during HA exposure. Additionally, the secretion of inflammatory factors was also significantly enhanced in HA mice. Moreover, the remarkably changed expression of ferroptosis-related markers suggested that HA exposure increased ferroptosis sensitivity in adipose tissue. Overall, this study reveals that HA exposure is capable of inducing adipose tissue redox imbalance, inflammatory response, and ferroptosis, driven in part by changes in iron overload, which is expected to provide novel preventive targets for HA-related illness.
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Zhang X, Zhang J. The human brain in a high altitude natural environment: A review. Front Hum Neurosci 2022; 16:915995. [PMID: 36188182 PMCID: PMC9520777 DOI: 10.3389/fnhum.2022.915995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/25/2022] [Indexed: 12/04/2022] Open
Abstract
With the advancement of in vivo magnetic resonance imaging (MRI) technique, more detailed information about the human brain at high altitude (HA) has been revealed. The present review aimed to draw a conclusion regarding changes in the human brain in both unacclimatized and acclimatized states in a natural HA environment. Using multiple advanced analysis methods that based on MRI as well as electroencephalography, the modulations of brain gray and white matter morphology and the electrophysiological mechanisms underlying processing of cognitive activity have been explored in certain extent. The visual, motor and insular cortices are brain regions seen to be consistently affected in both HA immigrants and natives. Current findings regarding cortical electrophysiological and blood dynamic signals may be related to cardiovascular and respiratory regulations, and may clarify the mechanisms underlying some behaviors at HA. In general, in the past 10 years, researches on the brain at HA have gone beyond cognitive tests. Due to the sample size is not large enough, the current findings in HA brain are not very reliable, and thus much more researches are needed. Moreover, the histological and genetic bases of brain structures at HA are also needed to be elucidated.
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Affiliation(s)
- Xinjuan Zhang
- Institute of Brain Diseases and Cognition, School of Medicine, Xiamen University, Xiamen, China
- Department of Physiology, School of Medicine, Xiamen University, Xiamen, China
| | - Jiaxing Zhang
- Institute of Brain Diseases and Cognition, School of Medicine, Xiamen University, Xiamen, China
- Department of Physiology, School of Medicine, Xiamen University, Xiamen, China
- *Correspondence: Jiaxing Zhang,
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Combining quantitative susceptibility mapping to radiomics in diagnosing Parkinson’s disease and assessing cognitive impairment. Eur Radiol 2022; 32:6992-7003. [DOI: 10.1007/s00330-022-08790-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 03/18/2022] [Accepted: 04/01/2022] [Indexed: 11/04/2022]
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Zhang G, Mou Z, Xue W, Liu H. Phosphorylated protein modification analysis on normal liver and Exo-celiac liver of Glyptosternum maculatum. JOURNAL OF FISH BIOLOGY 2021; 99:1696-1707. [PMID: 34392541 DOI: 10.1111/jfb.14877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 07/22/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND This study aimed to reveal the biological function and molecular mechanism of phosphorylated proteins in the normal liver (NG) and Exo-celiac liver (WG) of Glyptosternum maculatum and potential plateau-adaption mechanisms of G. maculatum. METHODS A multivariate analysis was performed on proteomic quantitative data (label-free group) and phosphorylated proteome data (phosphorylation group) to reveal protein characteristics. The differentially expressed proteins (DEPs) between NG and WG in the two groups were analysed. Enrichment analysis of these DEPs was performed prior to the protein-protein interaction (PPI) analysis. Finally, an integrated interaction network was constructed to reveal the biological mechanism of the DEP-mediated signal transduction process. RESULT The NG and WG samples in the phosphorylation group were well distinguished compared to the label-free group. A total of 49 and 313 DEPs were identified in the label-free and phosphorylation groups, respectively. These DEPs, including LIM and calponin homology domains-containing protein 1 (LIMCH1) and DEAD(Asp-Glu-Ala-Asp)-Box Helicase 51 (DDX51), were mainly assembled in functions such as cell adhesion. Two PPI networks were constructed using DEPs in the two groups. Finally, an integrated interaction network was constructed using co-DEP Ferredoxin 1 (FDX1) and associated pathways, including RNA transport. CONCLUSION LIMCH1 and DDX51 might play important roles in the organogenesis of normal liver and Exo-celiac liver in G. maculatum via the cell adhesion function. Moreover, FXD1 might be associated with the plateau-adaption mechanisms of G. maculatum via participation in the RNA transport pathway.
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Affiliation(s)
- Guoqiang Zhang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, China
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
| | - Zhenbo Mou
- Institute of Fisheries Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
| | - Wenhua Xue
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, China
| | - Haiping Liu
- Institute of Fisheries Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
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De Barros A, Arribarat G, Lotterie JA, Dominguez G, Chaynes P, Péran P. Iron distribution in the lentiform nucleus: A post-mortem MRI and histology study. Brain Struct Funct 2021; 226:351-364. [PMID: 33389044 DOI: 10.1007/s00429-020-02175-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 11/09/2020] [Indexed: 01/19/2023]
Abstract
Iron plays an important role in many neurobiological processes, especially in the basal ganglia, the brain structures with the highest concentration. Composed of the pallidum and putamen, the lentiform nucleus plays a key role in the basal ganglia circuitry. With MRI advances, iron-based sequences such as R2* and quantitative susceptibility mapping (QSM) are now available for detecting and quantifying iron in different brain structures. Since their validation using classic iron detection techniques (histology or physical techniques), these sequences have attracted growing clinical attention, especially in the field of extrapyramidal syndromes that particularly affect the basal nuclei. Accurate mapping of iron in these nuclei and their connections is needed to gain a better understanding of this specific anatomy, before considering its involvement in the physiopathological processes. We performed R2* and QSM along with Perls histology, to gain new insights into the distribution of iron in the lentiform nucleus and its surrounding structures, based on four specimens obtained from voluntary donors. We found that iron is preferentially distributed in the anterior part of the globus pallidus externus and the posterior part of the putamen. The lateral wall of the putamen is iron-poor, compared with the lateral medullary lamina and intraputaminal fibers. The relevance of perivascular iron concentration, along with pallido- and putaminofugal iron-rich fibers, is discussed.
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Affiliation(s)
- Amaury De Barros
- Toulouse NeuroImaging Center (ToNIC), University of Toulouse Paul Sabatier-INSERM, CHU Purpan, Pavillon Baudot, Place du Dr Baylac, 31024, Toulouse, Cedex 3, France. .,Department of Anatomy, Toulouse Faculty of Medicine, Toulouse federal University, Toulouse, France. .,Neuroscience (Neurosurgery) Center, Toulouse University Hospital, Toulouse, France.
| | - Germain Arribarat
- Toulouse NeuroImaging Center (ToNIC), University of Toulouse Paul Sabatier-INSERM, CHU Purpan, Pavillon Baudot, Place du Dr Baylac, 31024, Toulouse, Cedex 3, France
| | - Jean Albert Lotterie
- Toulouse NeuroImaging Center (ToNIC), University of Toulouse Paul Sabatier-INSERM, CHU Purpan, Pavillon Baudot, Place du Dr Baylac, 31024, Toulouse, Cedex 3, France.,Neuroscience (Neurosurgery) Center, Toulouse University Hospital, Toulouse, France
| | - Gaelle Dominguez
- Toulouse NeuroImaging Center (ToNIC), University of Toulouse Paul Sabatier-INSERM, CHU Purpan, Pavillon Baudot, Place du Dr Baylac, 31024, Toulouse, Cedex 3, France.,Neuropathology Unit, University Pathology Laboratory, Toulouse University Hospital-University of Toulouse III-Paul Sabatier, Toulouse, France
| | - Patrick Chaynes
- Department of Anatomy, Toulouse Faculty of Medicine, Toulouse federal University, Toulouse, France.,Neuroscience (Neurosurgery) Center, Toulouse University Hospital, Toulouse, France
| | - Patrice Péran
- Toulouse NeuroImaging Center (ToNIC), University of Toulouse Paul Sabatier-INSERM, CHU Purpan, Pavillon Baudot, Place du Dr Baylac, 31024, Toulouse, Cedex 3, France
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Abnormal brain activity in rats with sustained hypobaric hypoxia exposure: a resting-state functional magnetic resonance imaging study. Chin Med J (Engl) 2020; 132:2621-2627. [PMID: 31651519 PMCID: PMC6846249 DOI: 10.1097/cm9.0000000000000495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background: Hypobaric hypoxia (HH) exposure at high altitudes can result in a decline in cognitive function, which may have a serious impact on the daily life of people who migrate to high altitudes. However, the specific HH-induced changes in brain function remain unclear. This study explored changes in brain activity in rats exposed to a sustained HH environment using functional magnetic resonance imaging (fMRI). Methods: Healthy male rats (8 weeks old) were randomly divided into a model group and a control group. A rat model of cognitive impairment induced by sustained HH exposure was established. The control and model groups completed training and testing in the Morris water maze (MWM). A two-sample t-test for between-group difference comparisons was performed. Repeated measures analyses of variance for within-group comparisons were performed and post-hoc comparisons were made using the Tukey test. Between-group differences in spontaneous brain activity were assessed using a voxel-wise analysis of resting-state fMRI (rs-fMRI), combined with analyses of the fractional amplitude of low frequency fluctuations (fALFF) in statistical parametric mapping. Results: In the MWM test, the escape latencies of the model group were significantly longer compared with those of the control group (control group vs. model group, day 1: 21.6 ± 3.3 s vs. 40.5 ± 3.4 s, t = –11.282; day 2: 13.5 ± 2.2 s vs. 28.7 ± 5.3 s, t = –7.492; day 3: 10.5 ± 2.8 s vs. 22.6 ± 6.1 s, t = –5.099; day 4: 9.7 ± 2.5 s vs. 18.6 ± 5.2 s, t = –4.363; day 5: 8.8 ± 2.7 s vs. 16.7 ± 5.0 s, t = –3.932; all P < 0.001). Within both groups, the escape latency at day 5 was significantly shorter than those at other time points (control group: F = 57.317, P < 0.001; model group: F = 50.718, P < 0.001). There was no within-group difference in average swimming speed (control group, F = 1.162, P = 0.956; model group, F = 0.091, P = 0.880). Within the model group, the time spent within the original platform quadrant was significantly shorter (control group vs. model group: 36.1 ± 5.7 s vs. 17.8 ± 4.3 s, t = 7.249, P < 0.001) and the frequency of crossing the original platform quadrant was significantly reduced (control group vs. model group: 6.4 ± 1.9 s vs. 2.0 ± 0.8 s, t = 6.037, P < 0.001) compared with the control group. In the rs-fMRI study, compared with the control group, rats in the model group showed widespread reductions in fALFF values throughout the brain. Conclusions: The abnormalities in spontaneous brain activity indicated by the fALFF measurements may reflect changes in brain function after HH exposure. This widespread abnormal brain activity may help to explain and to provide new insights into the mechanism underlying the impairment of brain function under sustained exposure to high altitudes.
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Chen L, Hua J, Ross CA, Cai S, van Zijl PC, Li X. Altered brain iron content and deposition rate in Huntington's disease as indicated by quantitative susceptibility MRI. J Neurosci Res 2019; 97:467-479. [PMID: 30489648 PMCID: PMC6367012 DOI: 10.1002/jnr.24358] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/08/2018] [Accepted: 11/08/2018] [Indexed: 12/14/2022]
Abstract
Altered brain iron content in the striatum of premanifest and manifest Huntington's disease (HD) has been reported. However, its natural history remains unclear. This study aims to investigate altered brain iron content in premanifest and early HD, and the iron deposition rate in these patients through a longitudinal one-year follow-up test, with quantitative magnetic susceptibility as an iron imaging marker. Twenty-four gene mutation carriers divided into three groups (further-from-onset, closer-to-onset and early HD) and 16 age-matched healthy controls were recruited at baseline, and of these, 14 carriers and 7 controls completed the one-year follow-up. Quantitative magnetic susceptibility and effective transverse relaxation rate ( R 2 ∗ ) were measured at 7.0 Tesla and correlated with atrophy and available clinical and cognitive measurements. Higher susceptibility values indicating higher iron content in the striatum and globus pallidus were only observed in closer-to-onset (N = 6, p < 0.05 in caudate and p < 0.01 in putamen) and early HD (N = 9, p < 0.05 in caudate and globus pallidus and p < 0.01 in putamen). Similar results were found by R 2 ∗ measurement. Such increases directly correlated with HD CAG-age product score and brain atrophy, but not with motor or cognitive scores. More importantly, a significantly higher iron deposition rate (11.9%/years in caudate and 6.1%/years in globus pallidus) was firstly observed in closer-to-onset premanifest HD and early HD as compared to the controls. These results suggest that monitoring brain iron may provide further insights into the pathophysiology of HD disease progression, and may provide a biomarker for clinical trials.
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Affiliation(s)
- Lin Chen
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen, China
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, United States
- Department of Radiology and Radiological Sciences, Johns Hopkins University, Baltimore, Maryland, United States
| | - Jun Hua
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, United States
- Department of Radiology and Radiological Sciences, Johns Hopkins University, Baltimore, Maryland, United States
| | - Christopher A. Ross
- Department of Psychiatry, Division of Neurobiology, and Departments of Neurology, Neuroscience and Pharmacology, Johns Hopkins University, Baltimore, Maryland, United States
| | - Shuhui Cai
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen, China
| | - Peter C.M. van Zijl
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, United States
- Department of Radiology and Radiological Sciences, Johns Hopkins University, Baltimore, Maryland, United States
| | - Xu Li
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, United States
- Department of Radiology and Radiological Sciences, Johns Hopkins University, Baltimore, Maryland, United States
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10
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Wang N, Cofer G, Anderson RJ, Qi Y, Liu C, Johnson GA. Accelerating quantitative susceptibility imaging acquisition using compressed sensing. ACTA ACUST UNITED AC 2018; 63:245002. [DOI: 10.1088/1361-6560/aaf15d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Miao X, Choi S, Tamrazi B, Chai Y, Vu C, Coates TD, Wood JC. Increased brain iron deposition in patients with sickle cell disease: an MRI quantitative susceptibility mapping study. Blood 2018; 132:1618-1621. [PMID: 30045839 PMCID: PMC6182265 DOI: 10.1182/blood-2018-04-840322] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Xin Miao
- Department of Biomedical Engineering and
| | - Soyoung Choi
- Neuroscience Graduate Program, University of Southern California, Los Angeles, CA; and
- Division of Cardiology
| | | | | | - Chau Vu
- Department of Biomedical Engineering and
| | - Thomas D Coates
- Hematology Section, Children's Center for Cancer, Blood Diseases and Bone Marrow Transplantation, Children's Hospital Los Angeles, Los Angeles, CA
| | - John C Wood
- Department of Biomedical Engineering and
- Division of Cardiology
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12
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Wang X, Zhang R, Wei W, Jiang H, Gao Z, Lin J, Zhang J. Long-term sequelae of hippocampal lesions in patients with transient global amnesia: A multiparametric MRI study. J Magn Reson Imaging 2017; 47:1350-1358. [PMID: 28884957 DOI: 10.1002/jmri.25844] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND MRI signal diffusion-weighted imaging (DWI) hyperintensity in the hippocampus in patients with transient global amnesia (TGA) are resolved within several days after the onset of TGA. PURPOSE To use multiparametric MRI to unravel the sequelae of TGA. STUDY TYPE A prospective longitudinal study. POPULATION Eight TGA patients. FIELD STRENGTH/SEQUENCE A 3.0T Siemens Tim Trio MRI scanner with T1 -weighted MPRAGE, diffusion-weighted echo planar imaging, and multiecho gradient-recalled echo sequences. ASSESSMENT Brain MRI scanned within 72 hours, 2 weeks, and 3 months after onset of TGA, respectively. T1 image hippocampus was first segmented into 12 subregions using FreeSurfer and registered to DWI to locate DWI lesion. Then a T1 image with segmented hippocampus was registered to its corresponding apparent diffusion coefficient (ADC) map, fractional anisotropy (FA) map, and quantitative susceptibility map, respectively. Finally, the volume, water diffusion and anisotropy, and magnetic susceptibility of DWI lesion were analyzed. STATISTICAL TESTS A paired samples t-test was performed to detect measurement differences between three tests. Pearson correlation was used to assess the correlations between all measurements. RESULTS Hyperintensity was detected in the head, body, and caudate of CA1 and hippocampal tail. No significant changes existed in CA1/unit volume across the three timepoint measurements (all, P > 0.480). In Test 1, ratio ADC (DWI lesion / adjacent healthy, rADC) and ratio FA (rFA) decreased below, while ratio susceptibility increased above 1.0. In Test 2, all the episodes normalized around 1.0. In Test 3, rADC remained normalization, but rFA decreased and ratio susceptibility increased again. In Test 1 and Test 3 (vs. Test 2), decreased FA values were accompanied with lower axial diffusivity and/or higher radial diffusivity (all, P < 0.001). Moreover, rFA significantly correlated with ratio susceptibility in Test 3 (r = -0.665, P = 0.039). DATA CONCLUSION Microstructural sequelae in hippocampus were demonstrated, which indicates that ischemic lesions may be associated with TGA. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2018;47:1350-1358.
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Affiliation(s)
- Xiaochuan Wang
- Department of Neurology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, P.R. China
| | - Ran Zhang
- Institute of Brain Diseases and Cognition, Medical College of Xiamen University, Xiamen, P.R. China
| | - Wenping Wei
- MRI Center, First Affiliated Hospital of Xiamen University, Xiamen, P.R. China
| | - Haibo Jiang
- Department of Neurology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, P.R. China
| | - Zhongming Gao
- Department of Neurology, Affiliated Hospital of Hangzhou Normal University, Hangzhou, P.R. China
| | - Jianzhong Lin
- Magnetic Resonance Center, Zhongshan Hospital Xiamen University, Xiamen, P.R. China
| | - Jiaxing Zhang
- Institute of Brain Diseases and Cognition, Medical College of Xiamen University, Xiamen, P.R. China
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