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Kobari T, Murayama T, Ikeda Y. Relationship between the amount of physical activity and brain structure in patients with chronic stroke. Neurol Res 2024; 46:781-786. [PMID: 38873919 DOI: 10.1080/01616412.2024.2354619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 05/07/2024] [Indexed: 06/15/2024]
Abstract
OBJECTIVES The association between the amount of physical activity and the brain structure in patients with stroke is unclear. Therefore, this study aimed to evaluate the structural characteristics of the brain in patients with chronic stroke engaging in varying levels of physical activity. METHODS This study included 10 healthy participants and 10 patients with stroke. Structural images were obtained, and the physical activity of patients with stroke was measured using a triaxial accelerometer. Additionally, the brain structure was assessed using voxel-based morphometry for gray and white matter volumes. The analysis software used were Statistical Parametric Mapping 12 and MATLAB version R2020a. The differences in brain structure between healthy participants and stroke patients were investigated. The brain regions associated with the amount of physical activity were analyzed. RESULTS There was a significant decrease in the gray matter volume of the contralesional cerebellum and ipsilesional thalamus in stroke patients when compared with healthy participants (p < 0.001, uncorrected). Patients with stroke showed a positive correlation between physical activity and the volume of the ipsilesional precentral gyrus and ipsilesional entorhinal area (p < 0.001, uncorrected). CONCLUSIONS The amount of physical activity in patients with chronic hemiplegic stroke is associated with brain gray matter mass.
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Affiliation(s)
- Tomoyoshi Kobari
- Faculty of Health Care and Medical Sports, Department of Rehabilitation, Teikyo Heisei University, Chiba, Japan
| | - Takashi Murayama
- Department of Rehabilitation Therapy, Chiba Rehabilitation Center, Chiba, Japan
| | - Yumi Ikeda
- Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
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Peng L, Li K, Li D, Zuo X, Zhan L, Chen M, Gong M, Sun W, Xu E. The p75 neurotrophin receptor attenuates secondary thalamic damage after cortical infarction by promoting angiogenesis. CNS Neurosci Ther 2024; 30:e14875. [PMID: 39072998 DOI: 10.1111/cns.14875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 06/23/2024] [Accepted: 07/05/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND Angiogenesis is crucial in neuroprotection of secondary thalamic injury after cortical infarction. The p75 neurotrophin receptor (p75NTR) plays a key role in activating angiogenesis. However, the effects of p75NTR on angiogenesis in the thalamus after cortical infarction are largely unknown. Herein we investigate whether p75NTR facilitates angiogenesis to attenuate secondary thalamic damage via activating hypoxia-inducible factor 1α (HIF-1α)/vascular endothelial growth factor (VEGF) pathway mediated by Von Hippel-Lindau (VHL) after distal middle cerebral artery occlusion (dMCAO). METHODS The male rat model of dMCAO was established. The effects of p75NTR on the angiogenesis was evaluated using RNA-sequencing, immunohistochemistry, western blot, quantitative real-time polymerase chain reaction, magnetic resonance imaging, behavior tests, viral and pharmacological interventions. RESULTS We found that the p75NTR and vessel density were decreased in ipsilateral thalamus after dMCAO. The p75NTR-VHL interaction was reduced, which promoted the ubiquitination degradation of HIF-1α and reduced VEGF expression after dMCAO. Notably, p75NTR overexpression restrained the ubiquitination degradation of HIF-1α by inhibiting VHL-HIF-1α interaction, further promoted angiogenesis, increased cerebral blood flow of ipsilateral thalamus and improved neurological function after dMCAO. CONCLUSION For the first time, we highlighted that the enhancement of p75NTR-VHL interaction promoted angiogenesis in attenuating secondary thalamic damage after dMCAO.
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Affiliation(s)
- Linhui Peng
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Kongping Li
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Neurology, The Affiliated Brain Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Dan Li
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xialin Zuo
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lixuan Zhan
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Meiyan Chen
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ming Gong
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Weiwen Sun
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - En Xu
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
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Chen Y, Veenman L, Liao M, Huang W, Yu J, Zeng J. Enhanced angiogenesis in the thalamus induced by a novel TSPO ligand ameliorates cognitive deficits after focal cortical infarction. J Cereb Blood Flow Metab 2024; 44:477-490. [PMID: 37988123 PMCID: PMC10981401 DOI: 10.1177/0271678x231214671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/25/2023] [Accepted: 06/23/2023] [Indexed: 11/22/2023]
Abstract
Neuronal loss in the ipsilateral thalamus after focal cortical infarction participates in post-stroke cognitive deficits, and enhanced angiogenesis in the thalamus is expected to reduce neuronal damage. We hypothesize that novel translocator protein (TSPO) ligand, 2-Cl-MGV-1, can promote angiogenesis, attenuate neuronal loss in the thalamus, and ameliorate post-stroke cognitive deficits. Cortical infarction was induced by distal middle cerebral artery occlusion (dMCAO) in stroke-prone renovascular hypertensive rats. 2-Cl-MGV-1 or dimethyl sulfoxide was administered 24 h after dMCAO and then for 6 or 13 days. Spatial learning and memory were assessed using the Morris water maze. Neuronal loss, TSPO expression, angiogenesis, and intrinsic pathway were determined by immunofluorescence and immunoblotting 7 and 14 days after dMCAO. Cortical infarction caused post-stroke cognitive deficits and secondary neuronal loss with gliosis in the ipsilateral thalamus within 14 days of dMCAO. Increased angiogenesis and elevated expression of vascular TSPO were detected in the ipsilateral thalamus, and treatment with 2-Cl-MGV-1 enhanced angiogenesis by stimulating the PI3K-AKT-mTOR pathway. The effects of 2-Cl-MGV-1 on angiogenesis coincided with reduced neuronal loss in the thalamus and contributed to improvements in post-stroke cognitive deficits. Our findings suggest that 2-Cl-MGV-1 stimulates angiogenesis, ameliorates neuronal loss in the thalamus, and improves post-stroke cognitive deficits.
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Affiliation(s)
- Yicong Chen
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Leo Veenman
- Department of Neuroscience, Israel Institute of Technology, Haifa, Israel
| | - Mengshi Liao
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Weixian Huang
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Jian Yu
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Jinsheng Zeng
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
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Jiang Z, Wei J, Liang J, Huang W, Ouyang F, Chen C, Li P, Cao S, Cai Y, Li J, Huang B, Zeng J, Chen Y. Dl-3-n-Butylphthalide Alleviates Secondary Brain Damage and Improves Working Memory After Stroke in Cynomolgus Monkeys. Stroke 2024; 55:725-734. [PMID: 38406851 DOI: 10.1161/strokeaha.123.045037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/17/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Remote secondary neurodegeneration is associated with poststroke cognitive impairment (PSCI). Dl-3-n-butylphthalide (NBP) improves PSCI clinically. However, whether it ameliorates PSCI by alleviating secondary neurodegeneration remains uncertain. Nonhuman primates provide more relevant models than rodents for human stroke and PSCI. This study investigated the effects of NBP on PSCI and secondary neurodegeneration in cynomolgus monkeys after permanent left middle cerebral artery occlusion (MCAO). METHODS Thirteen adult male cynomolgus monkeys were randomly assigned to sham (n=4), MCAO+placebo (n=5), and MCAO+NBP groups (n=4). The MCAO+placebo and MCAO+NBP groups received saline and NBP injections intravenously, respectively, starting at 6-hour postsurgery for 2 weeks, followed by soybean oil and NBP orally, respectively, for 10 weeks after MCAO. Infarct size was assessed at week 4 by magnetic resonance imaging. Working memory and executive function were evaluated dynamically using the delayed response task and object retrieval detour task, respectively. Neuron loss, glia proliferation, and neuroinflammation in the ipsilateral dorsal lateral prefrontal cortex, thalamus, and hippocampus were analyzed by immunostaining 12 weeks after MCAO. RESULTS Infarcts were located in the left middle cerebral artery region, apart from the ipsilateral dorsal lateral prefrontal cortex, thalamus, or hippocampus, with no significant difference between the MCAO+placebo and MCAO+NBP group. Higher success in delayed response task was achieved at weeks 4, 8, and 12 after NBP compared with placebo treatments (P<0.05), but not in the object retrieval detour task (all P>0.05). More neurons and less microglia, astrocytes, CD68-positive microglia, tumor necrosis factor-α, and inducible NO synthase were observed in the ipsilateral dorsal lateral prefrontal cortex and thalamus after 12 weeks of NBP treatment (P<0.05), but not in the hippocampus (P>0.05). CONCLUSIONS Our findings indicate that NBP improves working memory by alleviating remote secondary neurodegeneration and neuroinflammation in the ipsilateral dorsal lateral prefrontal cortex and thalamus after MCAO in cynomolgus monkeys.
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Affiliation(s)
- Zimu Jiang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Jiating Wei
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Jiahui Liang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Weixian Huang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Fubing Ouyang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Chunyong Chen
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- Department of Neurology, The First Affiliated Hospital, Guangxi Medical University; Nanning, China (C.C., P.L., B.H.)
| | - Pingping Li
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- Department of Neurology, The First Affiliated Hospital, Guangxi Medical University; Nanning, China (C.C., P.L., B.H.)
| | - Suhan Cao
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Yuangui Cai
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Jianle Li
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Baozi Huang
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- Department of Neurology, The First Affiliated Hospital, Guangxi Medical University; Nanning, China (C.C., P.L., B.H.)
| | - Jinsheng Zeng
- Department of Neurology (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z.), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
| | - Yicong Chen
- Section II, Department of Neurology and Stroke Center (Y. Chen), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases, Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
- National Key Clinical Department, Key Discipline of Neurology; Guangzhou, China (Z.J., J.W., J. Liang, W.H., F.O., C.C., P.L., S.C., Y. Cai, J. Li, B.H., J.Z., Y. Chen)
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Verhulst MMLH, Glimmerveen AB, van Heugten CM, Helmich RCG, Hofmeijer J. MRI factors associated with cognitive functioning after acute onset brain injury: Systematic review and meta-analysis. Neuroimage Clin 2023; 38:103415. [PMID: 37119695 PMCID: PMC10165272 DOI: 10.1016/j.nicl.2023.103415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/22/2023] [Accepted: 04/19/2023] [Indexed: 05/01/2023]
Abstract
Impairments of memory, attention, and executive functioning are frequently reported after acute onset brain injury. MRI markers hold potential to contribute to identification of patients at risk for cognitive impairments and clarification of mechanisms. The aim of this systematic review was to summarize and value the evidence on MRI markers of memory, attention, and executive functioning after acute onset brain injury. We included ninety-eight studies, on six classes of MRI factors (location and severity of damage (n = 15), volume/atrophy (n = 36), signs of small vessel disease (n = 15), diffusion-weighted imaging measures (n = 36), resting-state functional MRI measures (n = 13), and arterial spin labeling measures (n = 1)). Three measures showed consistent results regarding their association with cognition. Smaller hippocampal volume was associated with worse memory in fourteen studies (pooled correlation 0.58 [95% CI: 0.46-0.68] for whole, 0.11 [95% CI: 0.04-0.19] for left, and 0.34 [95% CI: 0.17-0.49] for right hippocampus). Lower fractional anisotropy in cingulum and fornix was associated with worse memory in six and five studies (pooled correlation 0.20 [95% CI: 0.08-0.32] and 0.29 [95% CI: 0.20-0.37], respectively). Lower functional connectivity within the default-mode network was associated with worse cognition in four studies. In conclusion, hippocampal volume, fractional anisotropy in cingulum and fornix, and functional connectivity within the default-mode network showed consistent associations with cognitive performance in all types of acute onset brain injury. External validation and cut off values for predicting cognitive impairments are needed for clinical implementation.
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Affiliation(s)
- Marlous M L H Verhulst
- Clinical Neurophysiology, University of Twente, Enschede, The Netherlands; Department of Neurology, Rijnstate Hospital, Arnhem, The Netherlands.
| | - Astrid B Glimmerveen
- Clinical Neurophysiology, University of Twente, Enschede, The Netherlands; Department of Neurology, Rijnstate Hospital, Arnhem, The Netherlands
| | - Caroline M van Heugten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands; Limburg Brain Injury Center, Maastricht University, Maastricht, The Netherlands; Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Rick C G Helmich
- Donders Institute for Brain, Cognition, and Behavior, Centre for Cognitive Neuroimaging, Radboud University Nijmegen, Nijmegen, The Netherlands; Department of Neurology, Centre of Expertise for Parkinson & Movement Disorders, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Jeannette Hofmeijer
- Clinical Neurophysiology, University of Twente, Enschede, The Netherlands; Department of Neurology, Rijnstate Hospital, Arnhem, The Netherlands
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6
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Geng J, Gao F, Ramirez J, Honjo K, Holmes MF, Adamo S, Ozzoude M, Szilagyi GM, Scott CJM, Stebbins GT, Nyenhuis DL, Goubran M, Black SE. Secondary thalamic atrophy related to brain infarction may contribute to post-stroke cognitive impairment. J Stroke Cerebrovasc Dis 2023; 32:106895. [PMID: 36495644 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/24/2022] [Accepted: 11/10/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE The thalamus is a key brain hub that is globally connected to many cortical regions. Previous work highlights thalamic contributions to multiple cognitive functions, but few studies have measured thalamic volume changes or cognitive correlates. This study investigates associations between thalamic volumes and post-stroke cognitive function. METHODS Participants with non-thalamic brain infarcts (3-42 months) underwent MRI and cognitive testing. Focal infarcts and thalami were traced manually. In cases with bilateral infarcts, the side of the primary infarct volume defined the hemisphere involved. Brain parcellation and volumetrics were extracted using a standardized and previously validated neuroimaging pipeline. Age and gender-matched healthy controls provided normal comparative thalamic volumes. Thalamic atrophy was considered when the volume exceeded 2 standard deviations greater than the controls. RESULTS Thalamic volumes ipsilateral to the infarct in stroke patients (n=55) were smaller than left (4.4 ± 1.4 vs. 5.4 ± 0.5 cc, p < 0.001) and right (4.4 ± 1.4 vs. 5.5 ± 0.6 cc, p < 0.001) thalamic volumes in the controls. After controlling for head-size and global brain atrophy, infarct volume independently correlated with ipsilateral thalamic volume (β= -0.069, p=0.024). Left thalamic atrophy correlated significantly with poorer cognitive performance (β = 4.177, p = 0.008), after controlling for demographics and infarct volumes. CONCLUSIONS Our results suggest that the remote effect of infarction on ipsilateral thalamic volume is associated with global post-stroke cognitive impairment.
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Affiliation(s)
- Jieli Geng
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Fuqiang Gao
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Joel Ramirez
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada; Heart and Stroke Foundation Canadian Partnership for Stroke Recovery (Sunnybrook site), Toronto, Ontario, Canada
| | - Kie Honjo
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada; Heart and Stroke Foundation Canadian Partnership for Stroke Recovery (Sunnybrook site), Toronto, Ontario, Canada
| | - Melissa F Holmes
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Sabrina Adamo
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Miracle Ozzoude
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Gregory M Szilagyi
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Christopher J M Scott
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada
| | - Glen T Stebbins
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
| | - David L Nyenhuis
- Hauenstein Neuroscience Center, Saint Mary's Health Care, Grand Rapids, MI, USA; LCC International University
| | - Maged Goubran
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada; Heart and Stroke Foundation Canadian Partnership for Stroke Recovery (Sunnybrook site), Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Ontario, Canada
| | - Sandra E Black
- LC Campbell Cognitive Neurology, Dr. Sandra Black Centre for Brain Resilience & Recovery, Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, University of Toronto, Ontario, Canada; Heart and Stroke Foundation Canadian Partnership for Stroke Recovery (Sunnybrook site), Toronto, Ontario, Canada; Department of Medicine (Neurology), Sunnybrook Health Sciences Centre and University of Toronto, Ontario, Canada.
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7
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Lv Q, Zhang J, Pan Y, Liu X, Miao L, Peng J, Song L, Zou Y, Chen X. Somatosensory Deficits After Stroke: Insights From MRI Studies. Front Neurol 2022; 13:891283. [PMID: 35911919 PMCID: PMC9328992 DOI: 10.3389/fneur.2022.891283] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/15/2022] [Indexed: 11/28/2022] Open
Abstract
Somatosensory deficits after stroke are a major health problem, which can impair patients' health status and quality of life. With the developments in human brain mapping techniques, particularly magnetic resonance imaging (MRI), many studies have applied those techniques to unravel neural substrates linked to apoplexy sequelae. Multi-parametric MRI is a vital method for the measurement of stroke and has been applied to diagnose stroke severity, predict outcome and visualize changes in activation patterns during stroke recovery. However, relatively little is known about the somatosensory deficits after stroke and their recovery. This review aims to highlight the utility and importance of MRI techniques in the field of somatosensory deficits and synthesizes corresponding articles to elucidate the mechanisms underlying the occurrence and recovery of somatosensory symptoms. Here, we start by reviewing the anatomic and functional features of the somatosensory system. And then, we provide a discussion of MRI techniques and analysis methods. Meanwhile, we present the application of those techniques and methods in clinical studies, focusing on recent research advances and the potential for clinical translation. Finally, we identify some limitations and open questions of current imaging studies that need to be addressed in future research.
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Affiliation(s)
- Qiuyi Lv
- Department of Neurology and Stroke Center, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Junning Zhang
- Department of Integrative Oncology, China-Japan Friendship Hospital, Beijing, China
| | - Yuxing Pan
- Institute of Neuroscience, Chinese Academy of Science, Shanghai, China
| | - Xiaodong Liu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | | | - Jing Peng
- Department of Neurology and Stroke Center, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Lei Song
- Department of Neurology and Stroke Center, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Yihuai Zou
- Department of Neurology and Stroke Center, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Xing Chen
- Department of Neurology and Stroke Center, Dongzhimen Hospital, The First Affiliated Hospital of Beijing University of Chinese Medicine, Beijing, China
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8
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Jiménez-Sánchez L, Hamilton OKL, Clancy U, Backhouse EV, Stewart CR, Stringer MS, Doubal FN, Wardlaw JM. Sex Differences in Cerebral Small Vessel Disease: A Systematic Review and Meta-Analysis. Front Neurol 2021; 12:756887. [PMID: 34777227 PMCID: PMC8581736 DOI: 10.3389/fneur.2021.756887] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/04/2021] [Indexed: 01/12/2023] Open
Abstract
Background: Cerebral small vessel disease (SVD) is a common cause of stroke, mild cognitive impairment, dementia and physical impairments. Differences in SVD incidence or severity between males and females are unknown. We assessed sex differences in SVD by assessing the male-to-female ratio (M:F) of recruited participants and incidence of SVD, risk factor presence, distribution, and severity of SVD features. Methods: We assessed four recent systematic reviews on SVD and performed a supplementary search of MEDLINE to identify studies reporting M:F ratio in covert, stroke, or cognitive SVD presentations (registered protocol: CRD42020193995). We meta-analyzed differences in sex ratios across time, countries, SVD severity and presentations, age and risk factors for SVD. Results: Amongst 123 relevant studies (n = 36,910 participants) including 53 community-based, 67 hospital-based and three mixed studies published between 1989 and 2020, more males were recruited in hospital-based than in community-based studies [M:F = 1.16 (0.70) vs. M:F = 0.79 (0.35), respectively; p < 0.001]. More males had moderate to severe SVD [M:F = 1.08 (0.81) vs. M:F = 0.82 (0.47) in healthy to mild SVD; p < 0.001], and stroke presentations where M:F was 1.67 (0.53). M:F did not differ for recent (2015-2020) vs. pre-2015 publications, by geographical region, or age. There were insufficient sex-stratified data to explore M:F and risk factors for SVD. Conclusions: Our results highlight differences in male-to-female ratios in SVD severity and amongst those presenting with stroke that have important clinical and translational implications. Future SVD research should report participant demographics, risk factors and outcomes separately for males and females. Systematic Review Registration: [PROSPERO], identifier [CRD42020193995].
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Affiliation(s)
- Lorena Jiménez-Sánchez
- Translational Neuroscience PhD Programme, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Olivia K. L. Hamilton
- Translational Neuroscience PhD Programme, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
| | - Una Clancy
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Ellen V. Backhouse
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Catriona R. Stewart
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Michael S. Stringer
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Fergus N. Doubal
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Joanna M. Wardlaw
- Edinburgh Dementia Research Centre in the UK Dementia Research Institute, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Lothian Birth Cohorts, University of Edinburgh, Edinburgh, United Kingdom
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9
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Wei Y, Huang N, Liu Y, Zhang X, Wang S, Tang X. Hippocampal and Amygdalar Morphological Abnormalities in Alzheimer's Disease Based on Three Chinese MRI Datasets. Curr Alzheimer Res 2021; 17:1221-1231. [PMID: 33602087 DOI: 10.2174/1567205018666210218150223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/12/2020] [Accepted: 12/22/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Early detection of Alzheimer's disease (AD) and its early stage, the mild cognitive impairment (MCI), has important scientific, clinical and social significance. Magnetic resonance imaging (MRI) based statistical shape analysis provides an opportunity to detect regional structural abnormalities of brain structures caused by AD and MCI. OBJECTIVE In this work, we aimed to employ a well-established statistical shape analysis pipeline, in the framework of large deformation diffeomorphic metric mapping, to identify and quantify the regional shape abnormalities of the bilateral hippocampus and amygdala at different prodromal stages of AD, using three Chinese MRI datasets collected from different domestic hospitals. METHODS We analyzed the region-specific shape abnormalities at different stages of the neuropathology of AD by comparing the localized shape characteristics of the bilateral hippocampi and amygdalas between healthy controls and two disease groups (MCI and AD). In addition to group comparison analyses, we also investigated the association between the shape characteristics and the Mini Mental State Examination (MMSE) of each structure of interest in the disease group (MCI and AD combined) as well as the discriminative power of different morphometric biomarkers. RESULTS We found the strongest disease pathology (regional atrophy) at the subiculum and CA1 subregions of the hippocampus and the basolateral, basomedial as well as centromedial subregions of the amygdala. Furthermore, the shape characteristics of the hippocampal and amygdalar subregions exhibiting the strongest AD related atrophy were found to have the most significant positive associations with the MMSE. Employing the shape deformation marker of the hippocampus or the amygdala for automated MCI or AD detection yielded a significant accuracy boost over the corresponding volume measurement. CONCLUSION Our results suggested that the amygdalar and hippocampal morphometrics, especially those of shape morphometrics, can be used as auxiliary indicators for monitoring the disease status of an AD patient.
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Affiliation(s)
- Yuanyuan Wei
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Nianwei Huang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Yong Liu
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Xi Zhang
- Department of Neurology, Nanlou Division, Chinese PLA General Hospital; National Clinical Research Center for Geriatric Diseases, Beijing, China
| | - Silun Wang
- YIWEI Medical Technology Co., Ltd, Shenzhen, Guangdong, China
| | - Xiaoying Tang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
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10
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Krishnamurthy LC, Champion GN, McGregor KM, Krishnamurthy V, Turabi A, Roberts SR, Nocera JR, Borich MR, Rodriguez AD, Belagaje SR, Harrington RM, Harris-Love ML, Harnish SM, Drucker JH, Benjamin M, Meadows ML, Seeds L, Zlatar ZZ, Sudhyadhom A, Butler AJ, Garcia A, Patten C, Trinastic J, Kautz SA, Gregory C, Crosson BA. The effect of time since stroke, gender, age, and lesion size on thalamus volume in chronic stroke: a pilot study. Sci Rep 2020; 10:20488. [PMID: 33235210 PMCID: PMC7686360 DOI: 10.1038/s41598-020-76382-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 09/09/2020] [Indexed: 12/19/2022] Open
Abstract
Recent stroke studies have shown that the ipsi-lesional thalamus longitudinally and significantly decreases after stroke in the acute and subacute stages. However, additional considerations in the chronic stages of stroke require exploration including time since stroke, gender, intracortical volume, aging, and lesion volume to better characterize thalamic differences after cortical infarct. This cross-sectional retrospective study quantified the ipsilesional and contralesional thalamus volume from 69 chronic stroke subjects' anatomical MRI data (age 35-92) and related the thalamus volume to time since stroke, gender, intracortical volume, age, and lesion volume. The ipsi-lesional thalamus volume was significantly smaller than the contra-lesional thalamus volume (t(68) = 13.89, p < 0.0001). In the ipsilesional thalamus, significant effect for intracortical volume (t(68) = 2.76, p = 0.008), age (t(68) = 2.47, p = 0.02), lesion volume (t(68) = - 3.54, p = 0.0008), and age*time since stroke (t(68) = 2.46, p = 0.02) were identified. In the contralesional thalamus, significant effect for intracortical volume (t(68) = 3.2, p = 0.002) and age (t = - 3.17, p = 0.002) were identified. Clinical factors age and intracortical volume influence both ipsi- and contralesional thalamus volume and lesion volume influences the ipsilesional thalamus. Due to the cross-sectional nature of this study, additional research is warranted to understand differences in the neural circuitry and subsequent influence on volumetrics after stroke.
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Affiliation(s)
- Lisa C Krishnamurthy
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA.
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA, USA.
- Center for Advanced Brain Imaging, Georgia State University and Georgia Institute of Technology, Atlanta, GA, USA.
| | - Gabriell N Champion
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Department of Psychology, Georgia State University, Atlanta, GA, USA
| | - Keith M McGregor
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Venkatagiri Krishnamurthy
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Center for Advanced Brain Imaging, Georgia State University and Georgia Institute of Technology, Atlanta, GA, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Aaminah Turabi
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
| | - Simone R Roberts
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Department of Psychology, Georgia State University, Atlanta, GA, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Joe R Nocera
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
- Department of Rehabilitation Medicine, Emory University, Atlanta, GA, USA
| | - Michael R Borich
- Center for Advanced Brain Imaging, Georgia State University and Georgia Institute of Technology, Atlanta, GA, USA
- Department of Rehabilitation Medicine, Emory University, Atlanta, GA, USA
| | - Amy D Rodriguez
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Samir R Belagaje
- Department of Neurology, Emory University, Atlanta, GA, USA
- Department of Rehabilitation Medicine, Emory University, Atlanta, GA, USA
| | - Rachael M Harrington
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Center for Advanced Brain Imaging, Georgia State University and Georgia Institute of Technology, Atlanta, GA, USA
- Department of Psychology, Georgia State University, Atlanta, GA, USA
| | | | - Stacy M Harnish
- Department of Speech and Hearing Science, Ohio State University, Columbus, OH, USA
| | - Jonathan H Drucker
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Michelle Benjamin
- Department of Physical Therapy, Brooks Rehabilitation Center, Jacksonville, FL, USA
| | - M Lawson Meadows
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
| | - Lauren Seeds
- Department of Physical Therapy, Brooks Rehabilitation Center, Jacksonville, FL, USA
| | - Zvinka Z Zlatar
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Atchar Sudhyadhom
- Brigham and Women's Hospital, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Andrew J Butler
- School of Health Professions, University of Alabama Birmingham, Birmingham, AL, USA
| | - Amanda Garcia
- Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
| | - Carolynn Patten
- Department of Physical Medicine and Rehabilitation, University of California Davis, Sacramento, CA, USA
| | | | - Steven A Kautz
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
- Department of Health Sciences and Research, Medical University of South Carolina, Charleston, SC, USA
| | - Chris Gregory
- Department of Health Sciences and Research, Medical University of South Carolina, Charleston, SC, USA
| | - Bruce A Crosson
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Health Care System, 1670 Clairmont Rd, Decatur, GA, 30033, USA
- Center for Advanced Brain Imaging, Georgia State University and Georgia Institute of Technology, Atlanta, GA, USA
- Department of Psychology, Georgia State University, Atlanta, GA, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
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11
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Novellino F, López ME, Vaccaro MG, Miguel Y, Delgado ML, Maestu F. Association Between Hippocampus, Thalamus, and Caudate in Mild Cognitive Impairment APOEε4 Carriers: A Structural Covariance MRI Study. Front Neurol 2019; 10:1303. [PMID: 31920926 PMCID: PMC6933953 DOI: 10.3389/fneur.2019.01303] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/26/2019] [Indexed: 12/24/2022] Open
Abstract
Objective: Although, the apolipoprotein E (APOE) genotype is widely recognized as one of the most important risk factors for Alzheimer's disease (AD) development, the neural mechanisms by which the ε4 allele promotes the AD occurring remain under debate. The aim of this study was to evaluate neurobiological effects of the APOE-genotype on the pattern of the structural covariance in mild cognitive impairment (MCI) subjects. Methods: We enrolled 95 MCI subjects and 49 healthy controls. According to APOE-genotype, MCI subjects were divided into three groups: APOEε4 non-carriers (MCIε4-/-, n = 55), APOEε4 heterozygous carriers (MCIε4+/-, n = 31), and APOEε4 homozygous carriers (MCIε4+/+, n = 9) while all controls were APOEε4 non-carriers. In order to explore their brain structural pattern, T1-weighted anatomical brain 1.5-T MRI scans were collected. A whole-brain voxel-based morphometry analysis was performed, and all significant regions (p < 0.05 family-wise error, whole brain) were selected as a region of interest for the structural covariance analysis. Moreover, in order to evaluate the progression of the disease, a clinical follow-up was performed for 2 years. Results: The F-test showed in voxel-based morphometry analysis a strong overall difference among the groups in the middle frontal and temporal gyri and in the bilateral hippocampi, thalami, and parahippocampal gyri, with a grading in the atrophy in these latter three structures according to the following order: MCIε4+/+ > MCIε4+/- > MCIε4-/- > controls. Structural covariance analysis revealed a strong structural association between the left thalamus and the left caudate and between the right hippocampus and the left caudate (p < 0.05 family-wise error, whole brain) in the MCIε4 carrier groups (MCIε4+/+ > MCIε4+/-), whereas no significant associations were observed in MCIε4-/- subjects. Of note, the 38% of MCIs enrolled in this study developed AD within 2 years of follow-up. Conclusion: This study improves the knowledge on neurobiological effect of APOE ε4 in early pathophysiological phenomena underlying the MCI-to-AD evolution, as our results demonstrate changes in the structural association between hippocampal formation and thalamo-striatal connections occurring in MCI ε4 carriers. Our results strongly support the role of subcortical structures in MCI ε4 carriers and open a clinical window on the role of these structures as early disease markers.
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Affiliation(s)
- Fabiana Novellino
- Neuroimaging Research Unit, Institute of Bioimaging and Molecular Physiology, National Research Council, Catanzaro, Italy
| | - María Eugenia López
- Department of Experimental Psychology, Universidad Complutense de Madrid, Madrid, Spain
- Laboratory of Cognitive and Computational Neuroscience, Center for Biomedical Technology, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | | | - Yus Miguel
- Radiology Department, San Carlos Clinical Hospital, Madrid, Spain
| | - María Luisa Delgado
- Department of Experimental Psychology, Universidad Complutense de Madrid, Madrid, Spain
| | - Fernando Maestu
- Department of Experimental Psychology, Universidad Complutense de Madrid, Madrid, Spain
- Laboratory of Cognitive and Computational Neuroscience, Center for Biomedical Technology, Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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