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Woodrow RE, Menon DK, Stamatakis EA. Repeat traumatic brain injury exacerbates acute thalamic hyperconnectivity in humans. Brain Commun 2024; 6:fcae223. [PMID: 38989528 PMCID: PMC11235327 DOI: 10.1093/braincomms/fcae223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 05/16/2024] [Accepted: 06/25/2024] [Indexed: 07/12/2024] Open
Abstract
Repeated mild traumatic brain injury is of growing interest regarding public and sporting safety and is thought to have greater adverse or cumulative neurological effects when compared with single injury. While epidemiological links between repeated traumatic brain injury and outcome have been investigated in humans, exploration of its mechanistic substrates has been largely undertaken in animal models. We compared acute neurological effects of repeat mild traumatic brain injury (n = 21) to that of single injury (n = 21) and healthy controls (n = 76) using resting-state functional MRI and quantified thalamic functional connectivity, given previous identification of its prognostic potential in human mild traumatic brain injury and rodent repeat mild traumatic brain injury. Acute thalamocortical functional connectivity showed a rank-based trend of increasing connectivity with number of injuries, at local and global scales of investigation. Thus, history of as few as two previous injuries can induce a vulnerable neural environment of exacerbated hyperconnectivity, in otherwise healthy individuals from non-specialist populations. These results further establish thalamocortical functional connectivity as a scalable marker of acute injury and long-term neural dysfunction following mild traumatic brain injury.
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Affiliation(s)
- Rebecca E Woodrow
- University Division of Anaesthesia, University of Cambridge, Cambridge CB2 0SP, UK
- Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK
| | - David K Menon
- University Division of Anaesthesia, University of Cambridge, Cambridge CB2 0SP, UK
- Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 0QQ, UK
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Cheng Y, Wu B, Huang J, Chen Y. Research Progress on the Mechanisms of Central Post-Stroke Pain: A Review. Cell Mol Neurobiol 2023; 43:3083-3098. [PMID: 37166685 DOI: 10.1007/s10571-023-01360-6] [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: 03/07/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023]
Abstract
Central Post-Stroke Pain (CPSP) is a primary sequelae of stroke that can develop in the body part corresponding to the cerebrovascular lesion after stroke, most typically after ischemic stroke but also after hemorrhagic stroke. The pathogenesis of CPSP is currently unknown, and research into its mechanism is ongoing. To summarize current research on the CPSP mechanism and provide guidance for future studies. Use "central post-stroke pain," "stroke AND thalamic pain," "stroke AND neuropathic pain," "post-stroke thalamic pain" as the search term. The search was conducted in the PubMed and China National Knowledge Infrastructure databases, summarizing and classifying the retrieved mechanism studies. The mechanistic studies on CPSP are extensive, and we categorized the included mechanistic studies and summarized them in terms of relevant pathway studies, relevant signals and receptors, relevant neural tissues, and described endoplasmic reticulum stress and other relevant studies, as well as summarized the mechanisms of acupuncture treatment. Studies have shown that the pathogenesis of CPSP involves the entire spinal-thalamo-cortical pathway and that multiple substances in the nervous system are involved in the formation and development of CPSP. Among them, the relevant receptors and signals are the hotspot of research, and the discovery and exploration of different receptors and signals have provided a wide range of therapeutic ideas for CPSP. As a very effective treatment, acupuncture is less studied regarding the analgesic mechanism of CPSP, and further experimental studies are still needed.
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Affiliation(s)
- Yupei Cheng
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, 88 Changling Road, Tianjin, 300381, China
- Tianjin University of Traditional Chinese Medicine, 88 Changling Road, Tianjin, 301617, China
| | - Bangqi Wu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, 88 Changling Road, Tianjin, 300381, China.
| | - Jingjie Huang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, 88 Changling Road, Tianjin, 300381, China
- Tianjin University of Traditional Chinese Medicine, 88 Changling Road, Tianjin, 301617, China
| | - Yameng Chen
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine/National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, 88 Changling Road, Tianjin, 300381, China
- Tianjin University of Traditional Chinese Medicine, 88 Changling Road, Tianjin, 301617, China
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Silveira LM, Tavares LRR, Baptista-de-Souza D, Carmona IM, Carneiro de Oliveira PE, Nunes-de-Souza RL, Canto-de-Souza A. Anterior cingulate cortex, but not amygdala, modulates the anxiogenesis induced by living with conspecifics subjected to chronic restraint stress in male mice. Front Behav Neurosci 2023; 16:1077368. [PMID: 36688134 PMCID: PMC9853544 DOI: 10.3389/fnbeh.2022.1077368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 12/16/2022] [Indexed: 01/07/2023] Open
Abstract
Cohabitation with a partner undergoing chronic restraint stress (CRE) induces anxiogenic-like behaviors through emotional contagion. We hypothesized that the anterior cingulate cortex (ACC) and the amygdala would be involved in the modulation of this emotional process. This study investigated the role of the ACC and amygdala in empathy-like behavior (e.g., anxiety-like responses) induced by living with a mouse subjected to CRE. Male Swiss mice were housed in pairs for 14 days and then allocated into two groups: cagemate stress (one animal of the pair was subjected to 14 days of restraint stress) and cagemate control (no animal experienced stress). Twenty-four hours after the last stress session, cagemates had their brains removed for recording FosB labeling in the ACC and amygdala (Exp.1). In experiments 2 and 3, 24 h after the last stress session, the cagemates received 0.1 μL of saline or cobalt chloride (CoCl2 1 mM) into the ACC or amygdala, and then exposed to the elevated plus-maze (EPM) for recording anxiety. Results showed a decrease of FosB labeling in the ACC without changing immunofluorescence in the amygdala of stress cagemate mice. Cohabitation with mice subjected to CRE provoked anxiogenic-like behaviors. Local inactivation of ACC (but not the amygdala) reversed the anxiogenic-like effects induced by cohabitation with a partner undergoing CRE. These results suggest the involvement of ACC, but not the amygdala, in anxiety induced by emotional contagion.
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Affiliation(s)
- Lara Maria Silveira
- Psychobiology Group, Department of Psychology/Centro de Educação e Ciências Humanas (CECH), Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil,Graduate Program in Psychology, Centro de Educação e Ciências Humanas (CECH)-Universidade Federal de São Carlos, São Paulo, Brazil
| | - Ligia Renata Rodrigues Tavares
- Psychobiology Group, Department of Psychology/Centro de Educação e Ciências Humanas (CECH), Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil,Joint Graduate Program in Physiological Sciences, Universidade Federal de São Carlos (UFSCar)/Universidade Estadual Paulista (UNESP), São Carlos, São Paulo, Brazil
| | - Daniela Baptista-de-Souza
- Psychobiology Group, Department of Psychology/Centro de Educação e Ciências Humanas (CECH), Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil,Laboratory of Pharmacology, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, São Paulo, Brazil,Institute of Neuroscience and Behaviour, Ribeirão Preto, São Paulo, Brazil
| | - Isabela Miranda Carmona
- Psychobiology Group, Department of Psychology/Centro de Educação e Ciências Humanas (CECH), Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil,Joint Graduate Program in Physiological Sciences, Universidade Federal de São Carlos (UFSCar)/Universidade Estadual Paulista (UNESP), São Carlos, São Paulo, Brazil
| | - Paulo Eduardo Carneiro de Oliveira
- Psychobiology Group, Department of Psychology/Centro de Educação e Ciências Humanas (CECH), Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil,Graduate Program in Psychology, Centro de Educação e Ciências Humanas (CECH)-Universidade Federal de São Carlos, São Paulo, Brazil
| | - Ricardo Luiz Nunes-de-Souza
- Joint Graduate Program in Physiological Sciences, Universidade Federal de São Carlos (UFSCar)/Universidade Estadual Paulista (UNESP), São Carlos, São Paulo, Brazil,Laboratory of Pharmacology, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, São Paulo, Brazil,Institute of Neuroscience and Behaviour, Ribeirão Preto, São Paulo, Brazil
| | - Azair Canto-de-Souza
- Psychobiology Group, Department of Psychology/Centro de Educação e Ciências Humanas (CECH), Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil,Graduate Program in Psychology, Centro de Educação e Ciências Humanas (CECH)-Universidade Federal de São Carlos, São Paulo, Brazil,Joint Graduate Program in Physiological Sciences, Universidade Federal de São Carlos (UFSCar)/Universidade Estadual Paulista (UNESP), São Carlos, São Paulo, Brazil,Institute of Neuroscience and Behaviour, Ribeirão Preto, São Paulo, Brazil,*Correspondence: Azair Canto-de-Souza, ;
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Knockdown of GABA A alpha3 subunits on thalamic reticular neurons enhances deep sleep in mice. Nat Commun 2022; 13:2246. [PMID: 35473906 PMCID: PMC9042958 DOI: 10.1038/s41467-022-29852-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 04/04/2022] [Indexed: 12/15/2022] Open
Abstract
Identification of mechanisms which increase deep sleep could lead to novel treatments which promote the restorative effects of sleep. Here, we show that knockdown of the α3 GABAA-receptor subunit from parvalbumin neurons in the thalamic reticular nucleus using CRISPR-Cas9 gene editing increased the thalamocortical delta (1.5–4 Hz) oscillations which are implicated in many health-promoting effects of sleep. Inhibitory synaptic currents in thalamic reticular parvalbumin neurons were strongly reduced in vitro. Further analysis revealed that delta power in long NREM bouts prior to NREM-REM transitions was preferentially affected by deletion of α3 subunits. Our results identify a role for GABAA receptors on thalamic reticular nucleus neurons and suggest antagonism of α3 subunits as a strategy to enhance delta activity during sleep. Uygun et al. show that deletion of GABAA receptors from the thalamic reticular nucleus using CRISPR gene editing in mice boosts the delta waves, indicating a role for GABAA receptors on thalamic reticular nucleus neurons in NREM sleep delta oscillations.
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Sperk G, Kirchmair E, Bakker J, Sieghart W, Drexel M, Kondova I. Immunohistochemical distribution of 10 GABA A receptor subunits in the forebrain of the rhesus monkey Macaca mulatta. J Comp Neurol 2020; 528:2551-2568. [PMID: 32220012 PMCID: PMC7496627 DOI: 10.1002/cne.24910] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/11/2020] [Accepted: 03/19/2020] [Indexed: 12/23/2022]
Abstract
GABAA receptors are composed of five subunits arranged around a central chloride channel. Their subunits originate from different genes or gene families. The majority of GABAA receptors in the mammalian brain consist of two α-, two β- and one γ- or δ-subunit. This subunit organization crucially determines the physiological and pharmacological properties of the GABAA receptors. Using immunohistochemistry, we investigated the distribution of 10 GABAA receptor subunits (α1, α2, α3, α4, α5, β1, β2, β3, γ2, and δ) in the fore brain of three female rhesus monkeys (Macaca mulatta). Within the cerebral cortex, subunits α1, α5, β2, β3, and γ2 were found in all layers, α2, α3, and β1 were more concentrated in the inner and outer layers. The caudate/putamen was rich in α1, α2, α5, all three β-subunits, γ2, and δ. Subunits α3 and α5 were more concentrated in the caudate than in the putamen. In contrast, α1, α2, β1, β2, γ2, and δ were highest in the pallidum. Most dorsal thalamic nuclei contained subunits α1, α2, α4, β2, β3, and γ2, whereas α1, α3, β1, and γ2 were most abundant in the reticular nucleus. Within the amygdala, subunits α1, α2, α5, β1, β3, γ2, and δ were concentrated in the cortical nucleus, whereas in the lateral and basolateral amygdala α1, α2, α5, β1, β3, and δ, and in the central amygdala α1, α2, β3, and γ2 were most abundant. Interestingly, subunit α3-IR outlined the intercalated nuclei of the amygdala. In the hippocampus, subunits α1, α2, α5, β2, β3, γ2, and δ were highly expressed in the dentate molecular layer, whereas α1, α2, α3, α5, β1, β2, β3, and γ2 were concentrated in sector CA1 and the subiculum. The distribution of GABAA receptor subunits in the rhesus monkey was highly heterogeneous indicating a high number of differently assembled receptors. In most areas investigated, notably in the striatum/pallidum, amygdaloid nuclei and in the hippocampus it was more diverse than in the rat and mouse indicating a more heterogeneous and less defined receptor assembly in the monkey than in rodent brain.
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Key Words
- GABAA receptor subunits
- RRID:AB_2108828
- ab GAD67, RRID:AB_2278725
- ab NeuN, RRID:AB_2278725
- ab α2, RRID:AB_2827793
- ab α3, RRID:AB_2827797
- ab α4, RRID:AB_2827798
- ab α5, RRID:AB_2827799
- ab β1, RRID:AB_2827800
- ab β2, RRID:AB_2827801
- ab β3, RRID:AB_2827802
- ab γ2, RRID:AB_2827803
- ab δ, RRID:AB_2827804
- amygdala
- antibody α1 (BD24)
- basal ganglia
- benzodiazepine
- goat biotinylated anti-rabbit ab, RRID:AB_2336810
- horse anti-mouse ab, RRID:AB_2336811
- immunohistochemistry
- monkey
- primate
- thalamus
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Affiliation(s)
- Günther Sperk
- Department of PharmacologyMedical University InnsbruckInnsbruckAustria
| | - Elke Kirchmair
- Department of PharmacologyMedical University InnsbruckInnsbruckAustria
| | - Jaco Bakker
- Division of Veterinary Care, Animal Science DepartmentBiomedical Primate Research CentreRijswijkThe Netherlands
| | - Werner Sieghart
- Department of Molecular Neurosciences, Center for Brain ResearchMedical University ViennaViennaAustria
| | - Meinrad Drexel
- Department of PharmacologyMedical University InnsbruckInnsbruckAustria
| | - Ivanela Kondova
- Division of Pathology and Microbiology, Animal Science DepartmentBiomedical Primate Research CentreRijswijkThe Netherlands
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Sundström-Poromaa I, Comasco E, Sumner R, Luders E. Progesterone - Friend or foe? Front Neuroendocrinol 2020; 59:100856. [PMID: 32730861 DOI: 10.1016/j.yfrne.2020.100856] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/05/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022]
Abstract
Estradiol is the "prototypic" sex hormone of women. Yet, women have another sex hormone, which is often disregarded: Progesterone. The goal of this article is to provide a comprehensive review on progesterone, and its metabolite allopregnanolone, emphasizing three key areas: biological properties, main functions, and effects on mood in women. Recent years of intensive research on progesterone and allopregnanolone have paved the way for new treatment of postpartum depression. However, treatment for premenstrual syndrome and premenstrual dysphoric disorder as well as contraception that women can use without risking mental health problems are still needed. As far as progesterone is concerned, we might be dealing with a two-edged sword: while its metabolite allopregnanolone has been proven useful for treatment of PPD, it may trigger negative symptoms in women with PMS and PMDD. Overall, our current knowledge on the beneficial and harmful effects of progesterone is limited and further research is imperative.
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Affiliation(s)
| | - Erika Comasco
- Department of Neuroscience, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | | | - Eileen Luders
- School of Psychology, University of Auckland, New Zealand; Laboratory of Neuro Imaging, School of Medicine, University of Southern California, Los Angeles, USA
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Wang X, Li Y, Chen J, Li Z, Li J, Qin L. Aberrant Auditory Steady-State Response of Awake Mice After Single Application of the NMDA Receptor Antagonist MK-801 Into the Medial Geniculate Body. Int J Neuropsychopharmacol 2020; 23:459-468. [PMID: 32725129 PMCID: PMC7387767 DOI: 10.1093/ijnp/pyaa022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/18/2020] [Accepted: 03/21/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Systemic administration of noncompetitive N-methyl-D-aspartate receptor (NMDAR) antagonists such as MK-801 is widely used to model psychosis of schizophrenia (SZ). Acute systemic MK-801 in rodents caused an increase of the auditory steady-state responses (ASSRs), the oscillatory neural responses to periodic auditory stimulation, while most studies in patients with SZ reported a decrease of ASSRs. This inconsistency may be attributable to the comprehensive effects of systemic administration of MK-801. Here, we examined how the ASSR is affected by selectively blocking NMDAR in the thalamus. METHODS We implanted multiple electrodes in the auditory cortex (AC) and prefrontal cortex to simultaneously record the local field potential and spike activity (SA) of multiple sites from awake mice. Click-trains at a 40-Hz repetition rate were used to evoke the ASSR. We compared the mean trial power and phase-locking factor and the firing rate of SA before and after microinjection of MK-801 (1.5 µg) into the medial geniculate body (MGB). RESULTS We found that both the AC and prefrontal cortex showed a transient local field potential response at the onset of click-train stimulus, which was less affected by the application of MK-801 in the MGB. Following the onset response, the AC also showed a response continuing throughout the stimulus period, corresponding to the ASSR, which was suppressed by the application of MK-801. CONCLUSION Our data suggest that the MGB is one of the generators of ASSR, and NMDAR hypofunction in the thalamocortical projection may account for the ASSR deficits in SZ.
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Affiliation(s)
- Xuejiao Wang
- Department of Physiology, China Medical University, Shenyang, People’s Republic of China
| | - Yingzhuo Li
- Department of Physiology, China Medical University, Shenyang, People’s Republic of China
| | - Jingyu Chen
- Department of Physiology, China Medical University, Shenyang, People’s Republic of China
| | - Zijie Li
- Department of Physiology, China Medical University, Shenyang, People’s Republic of China
| | - Jinhong Li
- Department of Physiology, China Medical University, Shenyang, People’s Republic of China
| | - Ling Qin
- Department of Physiology, China Medical University, Shenyang, People’s Republic of China,Correspondence: Ling Qin, MD, PhD, Department of Physiology, China Medical University, Shenyang, 110122, People’s Republic of China ()
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Amrutkar DV, Dyhring T, Jacobsen TA, Larsen JS, Sandager-Nielsen K. Anti-Tremor Action of Subtype Selective Positive Allosteric Modulators of GABAA Receptors in a Rat Model of Essential Tremors. THE CEREBELLUM 2020; 19:265-274. [DOI: 10.1007/s12311-020-01106-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Sequeira A, Shen K, Gottlieb A, Limon A. Human brain transcriptome analysis finds region- and subject-specific expression signatures of GABA AR subunits. Commun Biol 2019; 2:153. [PMID: 31069263 PMCID: PMC6494906 DOI: 10.1038/s42003-019-0413-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/03/2019] [Indexed: 11/19/2022] Open
Abstract
Altered expression of GABA receptors (GABAARs) has been implicated in neurological and psychiatric disorders, but limited information about region-specific GABAAR subunit expression in healthy human brains, heteromeric assembly of major isoforms, and their collective organization across healthy individuals, are major roadblocks to understanding their role in non-physiological states. Here, by using microarray and RNA-Seq datasets-from single cell nuclei to global brain expression-from the Allen Institute, we find that transcriptional expression of GABAAR subunits is anatomically organized according to their neurodevelopmental origin. The data show a combination of complementary and mutually-exclusive expression patterns that delineate major isoforms, and which is highly stereotypical across brains from control donors. We summarize the region-specific signature of GABAR subunits per subject and its variability in a control population sample that can be used as a reference for remodeling changes during homeostatic rearrangements of GABAAR subunits after physiological, pharmacological or pathological challenges.
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Affiliation(s)
- Adolfo Sequeira
- Department of Psychiatry and Human Behavior, School of Medicine, University of California Irvine, Irvine, CA USA
| | - Kevin Shen
- Department of Neurology, Mitchel Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch, Galveston, TX USA
| | - Assaf Gottlieb
- School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX USA
| | - Agenor Limon
- Department of Neurology, Mitchel Center for Neurodegenerative Diseases, School of Medicine, University of Texas Medical Branch, Galveston, TX USA
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