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Pravatà E, Diociasi A, Navarra R, Carmisciano L, Sormani MP, Roccatagliata L, Chincarini A, Ossola A, Cardia A, Cianfoni A, Kaelin-Lang A, Gobbi C, Zecca C. Biometry extraction and probabilistic anatomical atlas of the anterior Visual Pathway using dedicated high-resolution 3-D MRI. Sci Rep 2024; 14:453. [PMID: 38172589 PMCID: PMC10764933 DOI: 10.1038/s41598-023-50980-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/28/2023] [Indexed: 01/05/2024] Open
Abstract
Anterior Visual Pathway (aVP) damage may be linked to diverse inflammatory, degenerative and/or vascular conditions. Currently however, a standardized methodological framework for extracting MRI biomarkers of the aVP is not available. We used high-resolution, 3-D MRI data to generate a probabilistic anatomical atlas of the normal aVP and its intraorbital (iOrb), intracanalicular (iCan), intracranial (iCran), optic chiasm (OC), and tract (OT) subdivisions. We acquired 0.6 mm3 steady-state free-precession images from 24 healthy participants using a 3 T scanner. aVP masks were obtained by manual segmentation of each aVP subdivision. Mask straightening and normalization with cross-sectional area (CSA) preservation were obtained using scripts developed in-house. A probabilistic atlas ("aVP-24") was generated by averaging left and right sides of all subjects. Leave-one-out cross-validation with respect to interindividual variability was performed employing the Dice Similarity Index (DSI). Spatially normalized representations of the aVP subdivisions were generated. Overlapping CSA values before and after normalization demonstrate preservation of the aVP cross-section. Volume, length, CSA, and ellipticity index (ε) biometrics were extracted. The aVP-24 morphology followed previous descriptions from the gross anatomy. Atlas spatial validation DSI scores of 0.85 in 50% and 0.77 in 95% of participants indicated good generalizability across the subjects. The proposed MRI standardization framework allows for previously unavailable, geometrically unbiased biometric data of the entire aVP and provides the base for future spatial-resolved, group-level investigations.
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Affiliation(s)
- Emanuele Pravatà
- Neurocenter of Southern Switzerland, EOC, Neuroradiology, Lugano, Switzerland.
- Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland.
| | - Andrea Diociasi
- Department of Health Sciences, University of Genova, Genova, Italy
| | - Riccardo Navarra
- Institute for Advanced Biomedical Technology (I.T.A.B.), Chieti, Italy
| | - Luca Carmisciano
- Department of Health Sciences, University of Genova, Genova, Italy
| | | | | | | | - Alessandra Ossola
- Neurocenter of Southern Switzerland, EOC, Ophthalmology, Lugano, Switzerland
- Neurocenter of Southern Switzerland, EOC, Neurosurgery, Lugano, Switzerland
| | - Andrea Cardia
- Neurocenter of Southern Switzerland, EOC, Neurosurgery, Lugano, Switzerland
| | - Alessandro Cianfoni
- Neurocenter of Southern Switzerland, EOC, Neuroradiology, Lugano, Switzerland
- Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
| | - Alain Kaelin-Lang
- Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
- Neurocenter of Southern Switzerland, EOC, Neurology, Lugano, Switzerland
| | - Claudio Gobbi
- Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
- Neurocenter of Southern Switzerland, EOC, Neurology, Lugano, Switzerland
| | - Chiara Zecca
- Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
- Neurocenter of Southern Switzerland, EOC, Neurology, Lugano, Switzerland
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Amankwa CE, Young O, DebNath B, Gondi SR, Rangan R, Ellis DZ, Zode G, Stankowska DL, Acharya S. Modulation of Mitochondrial Metabolic Parameters and Antioxidant Enzymes in Healthy and Glaucomatous Trabecular Meshwork Cells with Hybrid Small Molecule SA-2. Int J Mol Sci 2023; 24:11557. [PMID: 37511316 PMCID: PMC10380487 DOI: 10.3390/ijms241411557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Oxidative stress (OS)-induced mitochondrial damage is a risk factor for primary open-angle glaucoma (POAG). Mitochondria-targeted novel antioxidant therapies could unearth promising drug candidates for the management of POAG. Previously, our dual-acting hybrid molecule SA-2 with nitric oxide-donating and antioxidant activity reduced intraocular pressure and improved aqueous humor outflow in rodent eyes. Here, we examined the mechanistic role of SA-2 in trabecular meshwork (TM) cells in vitro and measured the activity of intracellular antioxidant enzymes during OS. Primary human TM cells isolated from normal (hNTM) or glaucomatous (hGTM) post-mortem donors and transformed glaucomatous TM cells (GTM-3) were used for in vitro assays. We examined the effect of SA-2 on oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) in vitro using Seahorse Analyzer with or without the oxidant, tert-butyl hydroperoxide (TBHP) treatment. Concentrations of total antioxidant enzymes, catalase (CAT), malondialdehyde (MDA), and glutathione peroxidase (GPx) were measured. We observed significant protection of both hNTM and hGTM cells from TBHP-induced cell death by SA-2. Antioxidant enzymes were elevated in SA-2-treated cells compared to TBHP-treated cells. In addition, SA-2 demonstrated an increase in mitochondrial metabolic parameters. Altogether, SA-2 protected both normal and glaucomatous TM cells from OS via increasing mitochondrial energy parameters and the activity of antioxidant enzymes.
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Affiliation(s)
- Charles E. Amankwa
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
| | - Olivia Young
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
| | - Biddut DebNath
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
| | - Sudershan R. Gondi
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
| | - Rajiv Rangan
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
| | - Dorette Z. Ellis
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
- Department of Pharmaceutical Sciences, College of Pharmacy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Gulab Zode
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
| | - Dorota L. Stankowska
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
- Department of Microbiology, Immunology and Genetics, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Suchismita Acharya
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX 76107, USA; (C.E.A.); (O.Y.); (B.D.); (S.R.G.); (R.R.)
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, TX 76107, USA;
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Fu Q, Liu H, Zhong YL. The Predictive Values of Changes in Local and Remote Brain Functional Connectivity in Primary Angle-Closure Glaucoma Patients According to Support Vector Machine Analysis. Front Hum Neurosci 2022; 16:910669. [PMID: 35664342 PMCID: PMC9160336 DOI: 10.3389/fnhum.2022.910669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/26/2022] [Indexed: 12/30/2022] Open
Abstract
Purpose The primary angle-closure glaucoma (PACG) is an irreversible blinding eye disease in the world. Previous neuroimaging studies demonstrated that PACG patients were associated with cerebral changes. However, the effect of optic atrophy on local and remote brain functional connectivity in PACG patients remains unknown. Materials and Methods In total, 23 patients with PACG and 23 well-matched Health Controls (HCs) were enrolled in our study and underwent resting-state functional magnetic resonance imaging (rs-fMRI) scanning. The regional homogeneity (ReHo) method and functional connectivity (FC) method were used to evaluate the local and remote brain functional connectivity. Moreover, support vector machine (SVM) method was applied to constructing PACG classification model. Results Compared with the HC, PACG patients showed increased ReHo values in right cerebellum (CER)_8, left CER_4-5, and right CER_8. In contrast, PACG patients showed decreased ReHo values in the bilateral lingual gyrus (LING)/calcarine (CAL)/superior occipital gyrus (SOG) and right postcentral gyrus (PostCG). The ReHo value exhibited an accuracy of 91.30% and area under curve (AUC) of 0.95 for distinguishing the PACG patients from HC. Conclusion Our study demonstrated that the PACG patients showed abnormal ReHo value in the cerebellum, visual cortex, and supplementary motor area, which might be reflect the neurological mechanisms underlying vision loss and eye pain in PACG patients. Moreover, the ReHo values can be used as a useful biomarker for distinguishing the PACG patients from HCs.
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Affiliation(s)
- Qiang Fu
- Department of Emergency, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Hui Liu
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Yu Lin Zhong
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- *Correspondence: Yu Lin Zhong,
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Pankowska A, Matwiejczuk S, Kozioł P, Żarnowski T, Pietura R, Kosior-Jarecka E. Visual Tract Degradation in Bilateral Normal-Tension Glaucoma-Cortical Thickness Maps and Volumetric Study of Visual Pathway Areas. J Clin Med 2022; 11:1907. [PMID: 35407515 DOI: 10.3390/jcm11071907] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/14/2022] [Accepted: 03/26/2022] [Indexed: 02/01/2023] Open
Abstract
The aim of the study was to evaluate changes in the central visual pathways during the early and advanced stages of bilateral normal-tension glaucoma (NTG). METHODS The studied groups constituted patients with bilateral normal-tension glaucoma of the same stage (n = 45) and age-matched healthy volunteers (n = 17). All patients underwent ophthalmic examination and examination on a 1.5 Tesla Magnetic Resonance Scanner (Optima 360, GE Healthcare). Volume and cortical thickness analyses were performed using the open-source automated software package FreeSurfer. RESULTS There was a significant difference in lateral geniculate nuclei volume between the control and advanced glaucoma groups in the right hemisphere (p = 0.03) and in the left hemisphere between the early and advanced glaucoma patients (p = 0.026). The optic chiasm volume differed significantly between the control and advanced NTG groups (p = 0.0003) and between early and advanced glaucoma patients (p = 0.004). Mean cortical thickness analysis revealed a significant increase in values in the advanced glaucoma group in the right Brodmann area 17 (BA17) (p = 0.007) and right BA18 (p = 0.049) as compared to early NTG. In the left BA18 area, the mean thickness of the cortex in the early glaucoma group was significantly lower than in the control group (p = 0.03). CONCLUSIONS The increase in the grey matter thickness in the V1 region with more-advanced glaucoma stages may reflect compensatory hypertrophy. Additionally, the regions of the brain early affected during glaucoma with reduced thickness were the right lateral occipital gyrus and left lingual gyrus. The most prominent change during the course of glaucoma was the increase in grey matter thickness in the right cuneus.
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Kang L, Wan C. Application of advanced magnetic resonance imaging in glaucoma: a narrative review. Quant Imaging Med Surg 2022; 12:2106-2128. [PMID: 35284278 PMCID: PMC8899967 DOI: 10.21037/qims-21-790] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 11/26/2021] [Indexed: 04/02/2024]
Abstract
Glaucoma is a group of eye diseases characterized by progressive degeneration of the optic nerve head and retinal ganglion cells and corresponding visual field defects. In recent years, mounting evidence has shown that glaucoma-related damage may not be limited to the degeneration of retinal ganglion cells or the optic nerve head. The entire structure of the visual pathway may be degraded, and the degradation may even extend to some non-visual brain regions. We know that advanced morphological, functional, and metabolic magnetic resonance technologies provide a means to observe quantitatively and in real time the state of brain function. Advanced magnetic resonance imaging (MRI) techniques provide additional diagnostic markers for glaucoma, which are related to known potential histopathological changes. Many researchers in China and globally have conducted clinical and imaging studies on glaucoma. However, they are scattered, and we still need to systematically sort out the advanced MRI related to glaucoma. We reviewed literature published in any language and included all studies that were able to be translated into English from 1 January 1980 to 31 July 2021. Our literature search focused on emerging magnetic resonance neuroimaging techniques for the study of glaucoma. We then identified each functional area of the brain of glaucoma patients through the integration of anatomy, image, and function. The aim was to provide more information about the occurrence and development of glaucoma diseases. From the perspective of neuroimaging, our study provides a research basis to explain the possible mechanism of the occurrence and development of glaucoma. This knowledge gained from these techniques enables us to more clearly observe the damage glaucoma causes to the whole visual pathway. Our study provides new insights into glaucoma-induced changes to the brain. Our findings may enable the progress of these changes to be analyzed and inspire new neuroprotective therapeutic strategies for patients with glaucoma in the future.
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Affiliation(s)
- Longdan Kang
- Department of Ophthalmology, the First Hospital of China Medical University, Shenyang, China
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Sims JR, Chen AM, Sun Z, Deng W, Colwell NA, Colbert MK, Zhu J, Sainulabdeen A, Faiq MA, Bang JW, Chan KC. Role of Structural, Metabolic, and Functional MRI in Monitoring Visual System Impairment and Recovery. J Magn Reson Imaging 2021; 54:1706-1729. [PMID: 33009710 PMCID: PMC8099039 DOI: 10.1002/jmri.27367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022] Open
Abstract
The visual system, consisting of the eyes and the visual pathways of the brain, receives and interprets light from the environment so that we can perceive the world around us. A wide variety of disorders can affect human vision, ranging from ocular to neurologic to systemic in nature. While other noninvasive imaging techniques such as optical coherence tomography and ultrasound can image particular sections of the visual system, magnetic resonance imaging (MRI) offers high resolution without depth limitations. MRI also gives superior soft-tissue contrast throughout the entire pathway compared to computed tomography. By leveraging different imaging sequences, MRI is uniquely capable of unveiling the intricate processes of ocular anatomy, tissue physiology, and neurological function in the human visual system from the microscopic to macroscopic levels. In this review we discuss how structural, metabolic, and functional MRI can be used in the clinical assessment of normal and pathologic states in the anatomic structures of the visual system, including the eyes, optic nerves, optic chiasm, optic tracts, visual brain nuclei, optic radiations, and visual cortical areas. We detail a selection of recent clinical applications of MRI at each position along the visual pathways, including the evaluation of pathology, plasticity, and the potential for restoration, as well as its limitations and key areas of ongoing exploration. Our discussion of the current and future developments in MR ocular and neuroimaging highlights its potential impact on our ability to understand visual function in new detail and to improve our protection and treatment of anatomic structures that are integral to this fundamental sensory system. LEVEL OF EVIDENCE 3: TECHNICAL EFFICACY STAGE 3: .
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Affiliation(s)
- Jeffrey R. Sims
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Anna M. Chen
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Sackler Institute of Graduate Biomedical Sciences, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Zhe Sun
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Sackler Institute of Graduate Biomedical Sciences, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Wenyu Deng
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Nicole A. Colwell
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Max K. Colbert
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Jingyuan Zhu
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Department of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Anoop Sainulabdeen
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Department of Surgery and Radiology, College of Veterinary and Animal Sciences, Kerala Veterinary and Animal Sciences University, Thrissur, India
| | - Muneeb A. Faiq
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Ji Won Bang
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
| | - Kevin C. Chan
- Department of Ophthalmology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Sackler Institute of Graduate Biomedical Sciences, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Neuroscience Institute, NYU Grossman School of Medicine, NYU Langone Health, New York University, New York, New York, USA
- Center for Neural Science, College of Arts and Science, New York University, New York, New York, USA
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Parisi V, Ziccardi L, Tanga L, Roberti G, Barbano L, Carnevale C, Manni G, Oddone F. Neural Conduction Along Postretinal Visual Pathways in Glaucoma. Front Aging Neurosci 2021; 13:697425. [PMID: 34408643 PMCID: PMC8365149 DOI: 10.3389/fnagi.2021.697425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/07/2021] [Indexed: 11/13/2022] Open
Abstract
Purpose: This study was conducted in order to evaluate retinal ganglion cell (RCG) function and the neural conduction along the postretinal large and small axons and its correlation with retinal nerve fiber layer thickness (RNFL-T) in open-angle glaucoma (OAG) eyes. Methods: Thirty-seven OAG patients (mean age: 51.68 ± 9.83 years) with 24-2 Humphrey mean deviation (MD) between -2.5 and -20 dB and IOP <21 mmHg on pharmacological treatment (OAG group) and 20 age-matched controls (control group) were enrolled. In both groups, simultaneous pattern electroretinograms (PERG) and visual evoked potentials (VEP), in response to checks stimulating macular or extramacular areas (the check edge subtended 15' and 60' of visual arc, respectively), and RNFL-T (measured in superior, inferior, nasal, and temporal quadrants) were assessed. Results: In the OAG group, a significant (ANOVA, p < 0.01) reduction of 60' and 15' PERG P50-N95 and VEP N75-P100 amplitudes and of RNFL-T [overall (average of all quadrants) or temporal] with respect to controls was found; the values of 60' and 15' PERG P50 and VEP P100 implicit times and of retinocortical time (RCT; difference between VEP P100 and PERG P50 implicit times) were significantly (p < 0.01) increased with respect to control ones. The observed increased RCTs were significantly linearly correlated (Pearson's test, p < 0.01) with the reduced PERG amplitude and MD values, whereas no significant linear correlation (p < 0.01) with RNFL-T (overall or temporal) values was detected. Conclusions: In OAG, there is an impaired postretinal neural conduction along both large and small axons (increased 60' and 15' RCTs) that is related to RGC dysfunction, but independent from the RNFL morphology. This implies that, in OAG, the impairment of postretinal neural structures can be electrophysiologically identified and may contribute to the visual field defects, as suggested by the linear correlation between the increase of RCT and MD reduction.
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Affiliation(s)
| | | | | | | | | | | | - Gianluca Manni
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
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Santos Bueso E. From glaucoma to neuroglaucoma. Arch Soc Esp Oftalmol (Engl Ed) 2021; 96:229-230. [PMID: 33610382 DOI: 10.1016/j.oftal.2020.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 12/26/2020] [Indexed: 06/12/2023]
Affiliation(s)
- E Santos Bueso
- Unidad de Neurooftalmología, Servicio de Oftalmología, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, España.
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Takahashi N, Matsunaga N, Natsume T, Kitazawa C, Itani Y, Hama A, Hayashi I, Shimazawa M, Hara H, Takamatsu H. A longitudinal comparison in cynomolgus macaques of the effect of brimonidine on optic nerve neuropathy using diffusion tensor imaging magnetic resonance imaging and spectral domain optical coherence tomography. Heliyon 2021; 7:e06701. [PMID: 33898826 PMCID: PMC8056221 DOI: 10.1016/j.heliyon.2021.e06701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 01/04/2021] [Accepted: 03/31/2021] [Indexed: 10/26/2022] Open
Abstract
Early detection of optic neuropathy is crucial for initiating treatment that could delay or prevent visual field loss. Preclinical studies have advanced a number of potential neuroprotective strategies to prevent retinal ganglion cell (RGC) degeneration, but none have successfully completed clinical trials. One issue related to the lack of preclinical to clinical translation is the lack of preclinical morphometric assessments that could be used to track neuroprotection, as well as neurodegeneration, over time within the same animal. Thus, to assess whether clinically used morphometric assessments can identify neuroprotection of RGC, the current study compared optic nerve fractional anisotropy (FA) obtained with diffusion tensor imaging (DTI) and retinal nerve fiber layer (RNFL) thickness measured with spectral domain optical coherence tomography (SD-OCT) to observe not only the early progression of RGC axonal degeneration but to also discern which imaging modality identifies signs of neuroprotection during treatment with the alpha-adrenoceptor agonist brimonidine. Elevated and sustained intraocular pressure (IOP) was observed following laser photocoagulation of the trabecular meshwork in one eye of nonhuman primates (NHP). Either brimonidine (0.1%) or control treatment was instilled twice daily for two months. In control-treated eyes, increased IOP, increased vertical cup-to-disc (C/D), reduced rim-to-disc (R/D) ratio, decreased RNFL thickness and decreased FA were observed. While IOP remained elevated during the course of the study, brimonidine tended to delay the progression of RNFL thinning. However, in the same animal, optic nerve FA did not appear to decline. Brimonidine treatment did not affect other measures of RGC axonal degeneration. The current findings demonstrate that early progression of optic neuropathy can be tracked over time in a nonhuman primate model of ocular hypertension using either DTI or SD-OCT. Furthermore, the delayed changes to RNFL thickness and FA appear to be a neuroprotective effect of brimonidine independent of its effect on IOP.
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Affiliation(s)
- Nobuyuki Takahashi
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
| | - Naoko Matsunaga
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
| | - Takahiro Natsume
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
| | - Chinatsu Kitazawa
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
| | - Yoshitaka Itani
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
| | - Aldric Hama
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
| | - Ikuo Hayashi
- Hamamatsu Pharma Research USA, Inc., 4660 La Jolla Village Drive, San Diego, CA, 92122 USA
| | - Masamitsu Shimazawa
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Hiroyuki Takamatsu
- Pharmacology, Hamamatsu Pharma Research, Inc., 1-3-7, Shinmiyakoda, Kita-ku, Hamamatsu, Shizuoka, 431-2103, Japan
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Papadopoulou A, Oertel FC, Chien C, Kuchling J, Zimmermann HG, Siebert N, Motamedi S, Souza M, Asseyer S, Bellmann-Strobl J, Ruprecht K, Chakravarty MM, Scheel M, Magon S, Wuerfel J, Paul F, Brandt AU. Lateral geniculate nucleus volume changes after optic neuritis in neuromyelitis optica: A longitudinal study. Neuroimage Clin 2021; 30:102608. [PMID: 33735786 DOI: 10.1016/j.nicl.2021.102608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/25/2021] [Accepted: 02/17/2021] [Indexed: 12/03/2022]
Abstract
LGN correlates with structural markers of the anterior and posterior visual pathway. LGN volume may reduce after an episode of ON, shown in four patients. LGN volume does not change over time in the absence of ON episodes. Our findings argue against occult neurodegeneration in the visual pathway in NMO.
Objectives Lateral geniculate nucleus (LGN) volume is reduced after optic neuritis (ON) in neuromyelitis optica spectrum disorders (NMOSD). We aimed at a longitudinal assessment of LGN volume in NMOSD. Methods Twenty-nine patients with aquaporin 4-IgG seropositive NMOSD (age: 47.8 ± 14.6 years (y), female: n = 27, history of ON (NMO-ON): n = 17, median time since ON: 3[1.2–12.1]y) and 18 healthy controls (HC; age: 39.3 ± 15.8y; female: n = 13) were included. Median follow-up was 4.1[1.1–4.7]y for patients and 1.7[0.9–3.2]y for HC. LGN volume was measured using a multi-atlas-based approach of automated segmentation on 3 Tesla magnetic resonance images. Retinal optical coherence tomography and probabilistic tractography of the optic radiations (OR) were also performed. Results At baseline, NMO-ON patients had lower LGN volumes (395.4 ± 48.9 mm3) than patients without ON (NMO-NON: 450.7 ± 55.6 mm3; p = 0.049) and HC (444.5 ± 61.5 mm3, p = 0.025). LGN volume was associated with retinal neuroaxonal loss and microstructural OR damage. Longitudinally, there was no change in LGN volumes in the absence of ON, neither in all patients (B = −0.6, SE = 1.4, p = 0.670), nor in NMO-ON (B = −0.8, SE = 1.6, p = 0.617) and NMO-NON (B = 1.7, SE = 3.5, p = 0.650). However, in four patients with new ON during follow-up, LGN volume was reduced at last visit (median time since ON: 2.6 [1.8–3.9] y) compared to the measurement before ON (352 ± 52.7 vs. 371.1 ± 55.9 mm3; t = −3.6, p = 0.036). Conclusion Although LGN volume is reduced after ON in NMOSD, this volume loss is not progressive over longer follow-up or independent of ON. Thus, our findings -at least in this relatively small cohort- do not support occult neurodegeneration of the afferent visual pathway in NMOSD.
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11
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Tsutsumi S, Ono H, Ishii H. Hyperintense areas in the intraorbital optic nerve evaluated by T2-weighted magnetic resonance imaging: a glymphatic pathway? Surg Radiol Anat 2021; 43:1273-1278. [PMID: 33399917 DOI: 10.1007/s00276-020-02649-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 12/04/2020] [Indexed: 01/27/2023]
Abstract
PURPOSE The present study aimed to explore the glymphatic pathway in the intraorbital optic nerve (ON) using magnetic resonance imaging (MRI). METHODS Following conventional MRI examination, a total of 89 outpatients underwent T2-weighted imaging in thin-sliced coronal and sagittal sections. Moreover, three injected cadaver heads were dissected. RESULTS In the cadaver specimens, differences in appearance between the central and peripheral parts of the ON were not observed. On the axial T2-weighted MRI performed in the initial examination, the central part of the intraorbital ONs was delineated as a well-demarcated, linear hyperintense area in 19% of patients. On the thin-sliced serial coronal images, the hyperintense areas were identified on both sides in 91% of patients. They were delineated as continuous hyperintense areas in the ONs with an inconsistent appearance even in the same nerve. In 12.4% of patients, the areas were divided into the upper and lower parts by a horizontal septum, while others showed variable morphologies, lacking a septum. On thin-sliced sagittal images, hyperintense areas were identified in 46% of patients. CONCLUSION Hyperintense areas in the intraorbital ON detected on T2-weighted sequences may involve a glymphatic pathway with perivascular spaces of the ON and central retinal artery. These may be collapsed and difficult to identify on surgical and cadaver specimens.
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Affiliation(s)
- Satoshi Tsutsumi
- Department of Neurological Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu, Chiba, 279-0021, Japan.
| | - Hideo Ono
- Division of Radiological Technology, Medical Satellite Yaesu Clinic, Tokyo, Japan
| | - Hisato Ishii
- Department of Neurological Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu, Chiba, 279-0021, Japan
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12
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Haykal S, Jansonius NM, Cornelissen FW. Investigating changes in axonal density and morphology of glaucomatous optic nerves using fixel-based analysis. Eur J Radiol 2020; 133:109356. [DOI: 10.1016/j.ejrad.2020.109356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/18/2020] [Accepted: 10/11/2020] [Indexed: 12/13/2022]
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13
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Gracitelli CPB, Duque-Chica GL, Sanches LG, Moura AL, Nagy BV, Teixeira SH, Amaro E, Ventura DF, Paranhos A. Structural Analysis of Glaucoma Brain and its Association With Ocular Parameters. J Glaucoma 2020; 29:393-400. [PMID: 32079996 DOI: 10.1097/ijg.0000000000001470] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PRECIS Glaucoma patients presented a decreased occipital pole surface area in both hemispheres. Moreover, these parameters are independently correlated with functional and structural ocular parameters. PURPOSE The purpose of this study was to evaluate structural brain abnormalities in glaucoma patients using 3-Tesla magnetic resonance imaging and assess their correlation with associated structural and functional ocular findings. PATIENTS AND METHODS This cross-sectional prospective study included 30 glaucoma patients and 18 healthy volunteers. All participants underwent standard automated perimetry, spectral-domain optical coherence tomography, and 3.0-Tesla magnetic resonance imaging. RESULTS There was a significant difference between the surface area of the occipital pole in the left hemisphere of glaucoma patients (mean: 1253.9±149.3 mm) and that of control subjects (mean: 1341.9±129.8 mm), P=0.043. There was also a significant difference between the surface area of the occipital pole in the right hemisphere of glaucoma patients (mean: 1910.5±309.4 mm) and that of control subjects (mean: 2089.1±164.2 mm), P=0.029. There was no significant difference between the lingual, calcarine, superior frontal, and inferior frontal gyri of glaucoma patients and those of the control subjects (P>0.05 for all comparisons). The surface area of the occipital pole in the left hemisphere was significantly correlated with perimetry mean deviation values, visual acuity, age, and retinal nerve fiber layer thickness (P=0.001, <0.001, 0.010, and 0.006, respectively). The surface area of the occipital pole in the right hemisphere was significantly correlated with perimetry mean deviation values, visual field indices, visual acuity, age, and retinal nerve fiber layer thickness (P<0.001, 0.007, <0.001, 0.046, and <0.001, respectively). CONCLUSION Glaucoma patients presented a decreased occipital pole surface area in both hemispheres that independently correlated with functional and structural ocular parameters.
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Affiliation(s)
- Carolina P B Gracitelli
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo
| | - Gloria L Duque-Chica
- Institute of Psychology, University of São Paulo.,Department of Psychology, University of Medellin, Medellin, Colombia
| | - Liana G Sanches
- Brain Institute-Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Ana L Moura
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo.,Institute of Psychology, University of São Paulo
| | - Balazs V Nagy
- Institute of Psychology, University of São Paulo.,Department of Mechatronics, Optics and Engineering Informatics, Budapest University of Technology and Economics, Budapest, Hungary
| | - Sergio H Teixeira
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo
| | - Edson Amaro
- Brain Institute-Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Dora F Ventura
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo.,Institute of Psychology, University of São Paulo
| | - Augusto Paranhos
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo.,Brain Institute-Hospital Israelita Albert Einstein, São Paulo, Brazil
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14
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Kosior-Jarecka E, Pankowska A, Polit P, Stępniewski A, Symms MR, Kozioł P, Żarnowski T, Pietura R. Volume of Lateral Geniculate Nucleus in Patients with Glaucoma in 7Tesla MRI. J Clin Med 2020; 9:jcm9082382. [PMID: 32722571 PMCID: PMC7466157 DOI: 10.3390/jcm9082382] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/17/2020] [Accepted: 07/23/2020] [Indexed: 12/19/2022] Open
Abstract
The aim of the study was to assess the volume of the lateral geniculate nucleus (LGN) in patients with open-angle glaucoma in 7Tesla MRI and to evaluate its relation to RNFL thickness and VF indices. Material and methods. The studied group consisted of 20 open-angle glaucoma patients with bilaterally the same stage of glaucoma (11 with early glaucoma and nine with advanced glaucoma) and nine healthy volunteers from the Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, Poland. Circumpapillary RNFL-thickness measurements were performed using OCT in all patients and visual fields were performed in the glaucoma group. A 7Tesla MRI was performed to assess the volume of both lateral geniculate bodies. Results. The LGN volume varied significantly between groups from 122.1 ± 14.4 mm3 (right LGN) and 101.6 ± 13.3 mm3 (left LGN) in the control group to 80.2 ± 17.7 mm3 (right LGN) and 71.8 ± 14.2 mm3 (left LGN) in the advanced glaucoma group (right LGN p = 0.003, left LGN p = 0.018). However, volume values from early glaucoma: right LGN = 120.2 ± 26.5 mm3 and left LGN = 103.2 ± 28.0 mm3 differed significantly only from values from the advanced group (right LGN p = 0.006, left LGN p = 0.012), but not from controls (right LGN p = 0.998, left LGN p = 0.986). There were no significant correlations between visual field indices (MD (mean deviation) and VFI (visual field index)) and LGN volumes in both glaucoma groups. Significant correlations between mean RNFL (retinal nerve fiber layers) thickness and corresponding and contralateral LGN were observed for the control group (corresponding LGN: p = 0.064; contralateral LGN: p = 0.031) and early glaucoma (corresponding LGN: p = 0.017; contralateral LGN: p = 0.008), but not advanced glaucoma (corresponding LGN: p = 0.496; contralateral LGN: p = 0.258). Conclusions. The LGN volume decreases in the course of glaucoma. These changes are correlated with RNFL thickness in early stages of glaucoma and are not correlated with visual field indices.
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Affiliation(s)
- Ewa Kosior-Jarecka
- Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, 20-079 Lublin, Poland; (P.P.); (T.Ż.)
- Correspondence:
| | - Anna Pankowska
- Department of Radiography, Medical University of Lublin, 20-079 Lublin, Poland; (A.P.); (P.K.); (R.P.)
| | - Piotr Polit
- Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, 20-079 Lublin, Poland; (P.P.); (T.Ż.)
| | - Andrzej Stępniewski
- Centrum ECO-TECH COMPLEX Maria Curie-Skłodowska University in Lublin, 20-612 Lublin, Poland;
| | | | - Paulina Kozioł
- Department of Radiography, Medical University of Lublin, 20-079 Lublin, Poland; (A.P.); (P.K.); (R.P.)
| | - Tomasz Żarnowski
- Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, 20-079 Lublin, Poland; (P.P.); (T.Ż.)
| | - Radosław Pietura
- Department of Radiography, Medical University of Lublin, 20-079 Lublin, Poland; (A.P.); (P.K.); (R.P.)
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Abstract
The damage caused by glaucoma has been extensively evaluated at the level of the retina and optic nerve head. Many advances have been shown in this field in the last decades. Recent studies have also proved degenerative changes in the brain involving the intracranial optic nerve, lateral geniculate nucleus, and visual cortex. Moreover, these brain abnormalities are also correlated with clinical, optic nerve head, and visual field findings. In this review, we critically evaluate the existing literature studying the use of magnetic resonance imaging in glaucoma, and we discuss issues related to how magnetic resonance imaging results should be incorporated into our clinical practice.
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Minosse S, Garaci F, Martucci A, Lanzafame S, Di Giuliano F, Picchi E, Cesareo M, Mancino R, Guerrisi M, Pistolese CA, Floris R, Nucci C, Toschi N. Primary Open Angle Glaucoma Is Associated With Functional Brain Network Reorganization. Front Neurol 2019; 10:1134. [PMID: 31708862 PMCID: PMC6823877 DOI: 10.3389/fneur.2019.01134] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 10/10/2019] [Indexed: 01/21/2023] Open
Abstract
Background: Resting-state functional magnetic resonance imaging (rs-fMRI) is commonly employed to study changes in functional brain connectivity. The recent hypothesis of a brain involvement in primary open angle Glaucoma has sprung interest for neuroimaging studies in this classically ophthalmological pathology. Object: We explored a putative reorganization of functional brain networks in Glaucomatous patients, and evaluated the potential of functional network disruption indices as biomarkers of disease severity in terms of their relationship to clinical variables as well as select retinal layer thicknesses. Methods: Nineteen Glaucoma patients and 16 healthy control subjects (age: 50–76, mean 61.0 ± 8.2 years) underwent rs-fMRI examination at 3T. After preprocessing, rs-fMRI time series were parcellated into 116 regions using the Automated Anatomical Labeling atlas and adjacency matrices were computed based on partial correlations. Graph-theoretical measures of integration, segregation and centrality as well as group-wise and subject-wise disruption index estimates (which use regression of graph-theoretical metrics across subjects to quantify overall network changes) were then generated for all subjects. All subjects also underwent Optical Coherence Tomography (OCT) and visual field index (VFI) quantification. We then examined associations between brain network measures and VFI, as well as thickness of retinal nerve fiber layer (RNFL) and macular ganglion cell layer (MaculaGCL). Results: In Glaucoma, group-wise disruption indices were negative for all graph theoretical metrics. Also, we found statistically significant group-wise differences in subject-wise disruption indexes in all local metrics. Two brain regions serving as hubs in healthy controls were not present in the Glaucoma group. Instead, three hub regions were present in Glaucoma patients but not in controls. We found significant associations between all disruption indices and VFI, RNFL as well as MaculaGCL. The disruption index based on the clustering coefficient yielded the best discriminative power for differentiating Glaucoma patients from healthy controls [Area Under the ROC curve (AUC) 0.91, sensitivity, 100%; specificity, 78.95%]. Conclusions: Our findings support a possible relationship between functional brain changes and disease severity in Glaucoma, as well as alternative explanations for motor and cognitive symptoms in Glaucoma, possibly pointing toward an inclusion of this pathology in the heterogeneous group of disconnection syndromes.
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Affiliation(s)
- Silvia Minosse
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Francesco Garaci
- Neuroradiology Unit, Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,San Raffaele Cassino, Cassino, Italy
| | - Alessio Martucci
- Ophthalmology Unit, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Simona Lanzafame
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Francesca Di Giuliano
- Diagnostic Imaging Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Eliseo Picchi
- Diagnostic Imaging Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Massimo Cesareo
- Ophthalmology Unit, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Raffaele Mancino
- Ophthalmology Unit, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Maria Guerrisi
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy
| | - Chiara Adriana Pistolese
- Diagnostic Imaging Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Roberto Floris
- Diagnostic Imaging Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Carlo Nucci
- Ophthalmology Unit, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Nicola Toschi
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.,Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School, Boston, MA, United States
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17
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Papadopoulou A, Gaetano L, Pfister A, Altermatt A, Tsagkas C, Morency F, Brandt AU, Hardmeier M, Chakravarty MM, Descoteaux M, Kappos L, Sprenger T, Magon S. Damage of the lateral geniculate nucleus in MS: Assessing the missing node of the visual pathway. Neurology 2019; 92:e2240-e2249. [PMID: 30971483 DOI: 10.1212/wnl.0000000000007450] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 01/10/2019] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To study if the thalamic lateral geniculate nucleus (LGN) is affected in multiple sclerosis (MS) due to anterograde degeneration from optic neuritis (ON) or retrograde degeneration from optic radiation (OR) pathology, and if this is relevant for visual function. METHODS In this cross-sectional study, LGN volume of 34 patients with relapsing-remitting MS and 33 matched healthy controls (HC) was assessed on MRI using atlas-based automated segmentation (MAGeT). ON history, thickness of the ganglion cell-inner plexiform layer (GC-IPL), OR lesion volume, and fractional anisotropy (FA) of normal-appearing OR (NAOR-FA) were assessed as measures of afferent visual pathway damage. Visual function was tested, including low-contrast letter acuity (LCLA) and Hardy-Rand-Rittler (HRR) plates for color vision. RESULTS LGN volume was reduced in patients vs HC (165.5 ± 45.5 vs 191.4 ± 47.7 mm3, B = -25.89, SE = 5.83, p < 0.001). It was associated with GC-IPL thickness (B = 0.95, SE = 0.33, p = 0.006) and correlated with OR lesion volume (Spearman ρ = -0.53, p = 0.001), and these relationships remained after adjustment for normalized brain volume. There was no association between NAOR-FA and LGN volume (B = -133.28, SE = 88.47, p = 0.137). LGN volume was not associated with LCLA (B = 5.5 × 10-5, SE = 0.03, p = 0.998), but it correlated with HRR color vision (ρ = 0.39, p = 0.032). CONCLUSIONS LGN volume loss in MS indicates structural damage with potential functional relevance. Our results suggest both anterograde degeneration from the retina and retrograde degeneration from the OR lesions as underlying causes. LGN volume is a promising marker reflecting damage of the visual pathway in MS, with the advantage of individual measurement per patient on conventional MRI.
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Affiliation(s)
- Athina Papadopoulou
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland.
| | - Laura Gaetano
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Armanda Pfister
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Anna Altermatt
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Charidimos Tsagkas
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Felix Morency
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Alexander U Brandt
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Martin Hardmeier
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Mallar M Chakravarty
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Maxime Descoteaux
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Ludwig Kappos
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Till Sprenger
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
| | - Stefano Magon
- From the Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research, and Biomedical Engineering (A. Papadopoulou, L.G., A. Pfister, C.T., M.H., L.K., T.S., S.M.), and Translational Imaging in Neurology (ThINK) Basel, Department of Medicine and Biomedical Engineering (A. Papadopoulou, L.G., A.A., C.T., S.M.), University Hospital Basel and University of Basel, Switzerland; NeuroCure Clinical Research Center (NCRC) (A. Papadopoulou, A.U.B.), and Experimental and Clinical Research Center (A. Papadopoulou, A.U.B.), Max Delbrück Center for Molecular Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany; Medical Image Analysis Center (MIAC) (L.G., A.A., C.T., S.M.), Basel, Switzerland; Imeka Solutions (F.M.), Sherbrooke, Canada; Department of Neurology (A.U.B.), University of California Irvine; Cerebral Imaging Centre (M.M.C.), Douglas Mental Health University Institute; Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal; University of Sherbrooke (M.D.), Canada; and Department of Neurology (T.S.), DKD Helios Klinik Wiesbaden, Germany. The present address for L.G. is F. Hoffmann-La Roche, Basel, Switzerland
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