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Sweetat S, Shabat MB, Theotokis P, Suissa N, Karafoulidou E, Touloumi O, Abu-Fanne R, Abramsky O, Wolf G, Saada A, Lotan A, Grigoriadis N, Rosenmann H. Ovariectomy and High Fat-Sugar-Salt Diet Induced Alzheimer's Disease/Vascular Dementia Features in Mice. Aging Dis 2024; 15:2284-2300. [PMID: 38913044 PMCID: PMC11346392 DOI: 10.14336/ad.2024.03110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/21/2024] [Indexed: 06/25/2024] Open
Abstract
While the vast majority of Alzheimer's disease (AD) is non-familial, the animal models of AD that are commonly used for studying disease pathogenesis and development of therapy are mostly of a familial form. We aimed to generate a model reminiscent of the etiologies related to the common late-onset Alzheimer's disease (LOAD) sporadic disease that will recapitulate AD/dementia features. Naïve female mice underwent ovariectomy (OVX) to accelerate aging/menopause and were fed a high fat-sugar-salt diet to expose them to factors associated with increased risk of development of dementia/AD. The OVX mice fed a high fat-sugar-salt diet responded by dysregulation of glucose/insulin, lipid, and liver function homeostasis and increased body weight with slightly increased blood pressure. These mice developed AD-brain pathology (amyloid and tangle pathologies), gliosis (increased burden of astrocytes and activated microglia), impaied blood vessel density and neoangiogenesis, with cognitive impairment. Thus, OVX mice fed on a high fat-sugar-salt diet imitate a non-familial sporadic/environmental form of AD/dementia with vascular damage. This model is reminiscent of the etiologies related to the LOAD sporadic disease that represents a high portion of AD patients, with an added value of presenting concomitantly AD and vascular pathology, which is a common condition in dementia. Our model can, thereby, provide a valuable tool for studying disease pathogenesis and for the development of therapeutic approaches.
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Affiliation(s)
- Sahar Sweetat
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. Hadassah BrainLabs-National Knowledge Center for Research on Brain Diseases, Hadassah-Hebrew University Medical Center, Jerusalem Israel
| | - Moti Ben Shabat
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. Hadassah BrainLabs-National Knowledge Center for Research on Brain Diseases, Hadassah-Hebrew University Medical Center, Jerusalem Israel
| | - Paschalis Theotokis
- Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Greece
| | - Nir Suissa
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. Hadassah BrainLabs-National Knowledge Center for Research on Brain Diseases, Hadassah-Hebrew University Medical Center, Jerusalem Israel
| | - Eleni Karafoulidou
- Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Greece
| | - Olga Touloumi
- Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Greece
| | - Rami Abu-Fanne
- Department of Clinical Biochemistry, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Oded Abramsky
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Gilly Wolf
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. Hadassah BrainLabs-National Knowledge Center for Research on Brain Diseases, Hadassah-Hebrew University Medical Center, Jerusalem Israel
- Biological Psychiatry Laboratory, Hadassah Hebrew University Medical Center, Jerusalem Israel Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Psychology, School of Psychology and Social Sciences, Achva Academic College, Be'er Tuvia, Israel
| | - Ann Saada
- Department of Genetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel; Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Amit Lotan
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. Hadassah BrainLabs-National Knowledge Center for Research on Brain Diseases, Hadassah-Hebrew University Medical Center, Jerusalem Israel
- Biological Psychiatry Laboratory, Hadassah Hebrew University Medical Center, Jerusalem Israel Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Nikolaos Grigoriadis
- Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Greece
| | - Hanna Rosenmann
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. Hadassah BrainLabs-National Knowledge Center for Research on Brain Diseases, Hadassah-Hebrew University Medical Center, Jerusalem Israel
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Tiwari P, Mueed S, Abdulkareem AO, Hanif K. Activation of angiotensin converting enzyme 2 promotes hippocampal neurogenesis via activation of Wnt/β-catenin signaling in hypertension. Mol Cell Neurosci 2024; 130:103953. [PMID: 39013481 DOI: 10.1016/j.mcn.2024.103953] [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: 03/21/2024] [Revised: 07/07/2024] [Accepted: 07/10/2024] [Indexed: 07/18/2024] Open
Abstract
Hypertension-induced brain renin-angiotensin system (RAS) activation and neuroinflammation are hallmark neuropathological features of neurodegenerative diseases. Previous studies from our lab have shown that inhibition of ACE/Ang II/AT1R axis (by AT1R blockers or ACE inhibitors) reduced neuroinflammation and accompanied neurodegeneration via up-regulating adult hippocampal neurogenesis. Apart from this conventional axis, another axis of RAS also exists i.e., ACE2/Ang (1-7)/MasR axis, reported as an anti-hypertensive and anti-inflammatory. However, the role of this axis has not been explored in hypertension-induced glial activation and hippocampal neurogenesis in rat models of hypertension. Hence, in the present study, we examined the effect of ACE2 activator, Diminazene aceturate (DIZE) at 2 different doses of 10 mg/kg (non-antihypertensive) and 15 mg/kg (antihypertensive dose) in renovascular hypertensive rats to explore whether their effect on glial activation, neuroinflammation, and neurogenesis is either influenced by blood-pressure. The results of our study revealed that hypertension induced significant glial activation (astrocyte and microglial), neuroinflammation, and impaired hippocampal neurogenesis. However, ACE2 activation by DIZE, even at the low dose prevented these hypertension-induced changes in the brain. Mechanistically, ACE2 activation inhibited Ang II levels, TRAF6-NFκB mediated inflammatory signaling, NOX4-mediated ROS generation, and mitochondrial dysfunction by upregulating ACE2/Ang (1-7)/MasR signaling. Moreover, DIZE-induced activation of the ACE2/Ang (1-7)/MasR axis upregulated Wnt/β-catenin signaling, promoting hippocampal neurogenesis during the hypertensive state. Therefore, our study demonstrates that ACE2 activation can effectively prevent glial activation and enhance hippocampal neurogenesis in hypertensive conditions, regardless of its blood pressure-lowering effects.
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Affiliation(s)
- Priya Tiwari
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sumbul Mueed
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India
| | - Adam Olaitan Abdulkareem
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Animal Physiology Unit, Department of Zoology, University of Ilorin, Ilorin, Nigeria
| | - Kashif Hanif
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Awad-Igbaria Y, Abu-Ata S, Nakhleh-Francis Y, Lowenstein L, Ginat K, Bornstein J, Palzur E, Shamir A. Exploring venlafaxine effects on chronic vulvar pain: Changes in mood and pain regulation networks. Neuropharmacology 2024; 243:109788. [PMID: 37984764 DOI: 10.1016/j.neuropharm.2023.109788] [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: 10/06/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
The etiology of idiopathic pain conditions, such as Provoked vulvodynia (PV), is multifactorial. The efficiency of venlafaxine, serotonin-noradrenaline reuptake inhibitor (SNRIs) in modulating vulvar pain led to the hypothesis that PV might involve central mechanisms. Here, we investigate whether vulvar pain is associated with gene-expression changes in mood, stress and pain systems, including amygdala (Amg), medial prefrontal cortex (mPFC), and periaqueductal gray matter (PAG). Additionally, we examined the analgesic and anxiolytic effects of venlafaxine. We found that the development of chronic vulvar pain in an animal model of PV is associated by overexpression of genes related to neuronal-activity and neuroinflammation in the Amg, mPFC, and PAG. Additionally, changes in the expression of GABA and serotonin synthesis, and reuptake were noted in the Amg and mPFC. Unsurprisingly, anxiety-like behavior and emotional-disorder were observed in rats with chronic vulvar pain. Nevertheless, treatment with venlafaxine (37.5 mg/kg) for one month significantly improves the vulvar hypersensitivity, as well as reduces the anxiety level. More critically, the long-term gene expression adaptation in serotonin receptor and synthesis, GABA synthesis, neuroplasticity, and neuroinflammation in the Amg, mPFC, and PAG, were modulated by venlafaxine in rats with vulvar pain. Our findings suggest that vulvar hypersensitivity induced by inflammation might associated with gene expression changes in brain areas that are involved in mood, stress and pain regulation. These changes probably play a role in central sensitization, and anxiety. Strikingly, enhancing the activity of serotonin and noradrenaline via venlafaxine treatment in rats with vulvar pain induces analgesic and anxiolytic effects.
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Affiliation(s)
- Yaseen Awad-Igbaria
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel; Research Institute of Galilee Medical Center, Nahariya, Israel.
| | - Saher Abu-Ata
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel; Research Institute of Galilee Medical Center, Nahariya, Israel
| | - Yara Nakhleh-Francis
- Research Institute of Galilee Medical Center, Nahariya, Israel; Department of Obstetrics and Gynecology, Galilee Medical Center, Nahariya, Israel
| | - Lior Lowenstein
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel; Research Institute of Galilee Medical Center, Nahariya, Israel; Department of Obstetrics and Gynecology, Galilee Medical Center, Nahariya, Israel
| | - Karen Ginat
- Psychobiology Research Laboratory, Mazor Mental Health Center, Akko, Israel
| | - Jacob Bornstein
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel; Research Institute of Galilee Medical Center, Nahariya, Israel
| | - Eilam Palzur
- Research Institute of Galilee Medical Center, Nahariya, Israel
| | - Alon Shamir
- Psychobiology Research Laboratory, Mazor Mental Health Center, Akko, Israel; Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
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Li J, Richards EM, Pepine CJ, Handberg EM, Smith SM, Alakrad E, Forsmark CE, Raizada MK. Reprograming of transcriptional profile of colonic organoids from patients with high blood pressure by minocycline. AMERICAN HEART JOURNAL PLUS : CARDIOLOGY RESEARCH AND PRACTICE 2023; 36:100343. [PMID: 38222308 PMCID: PMC10785309 DOI: 10.1016/j.ahjo.2023.100343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Minocycline, an anti-inflammatory antibiotic drug, rebalances impaired gut microbiota, attenuates neuroinflammation and lowers high blood pressure in animal models of hypertension and in hypertensive patients. Our objective in this study was to investigate if antihypertensive effects of minocycline involve the expression of gut epithelial genes relevant to blood pressure homeostasis using human colonic 3-dimensional organoid culture and high-throughput RNA sequencing. The data demonstrates that minocycline could restore impaired expression of functional genes linked to viral and bacterial immunity, inflammation, protein trafficking and autophagy in human hypertensive organoids.
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Affiliation(s)
- Jing Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, China
- Hubei Jiangxia Laboratory, Wuhan 430299, Hubei, China
| | - Elaine M. Richards
- Department of Physiology and Aging, University of Florida College of Medicine, Gainesville, FL, USA
| | - Carl J. Pepine
- Divisions of Cardiovascular Medicine, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA
| | - Eileen M. Handberg
- Divisions of Cardiovascular Medicine, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA
| | - Steven M. Smith
- Department of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Eyad Alakrad
- Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA
| | - Chris E. Forsmark
- Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA
| | - Mohan K. Raizada
- Department of Physiology and Aging, University of Florida College of Medicine, Gainesville, FL, USA
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Sakas R, Dan K, Edelman D, Abu-Ata S, Ben-Menashe A, Awad-Igbaria Y, Francois-Soustiel J, Palzur E. Hyperbaric Oxygen Therapy Alleviates Memory and Motor Impairments Following Traumatic Brain Injury via the Modulation of Mitochondrial-Dysfunction-Induced Neuronal Apoptosis in Rats. Antioxidants (Basel) 2023; 12:2034. [PMID: 38136154 PMCID: PMC10740762 DOI: 10.3390/antiox12122034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/07/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Traumatic brain injury (TBI) is a leading cause of morbidity and mortality in young adults, characterized by primary and secondary injury. Primary injury is the immediate mechanical damage, while secondary injury results from delayed neuronal death, often linked to mitochondrial damage accumulation. Hyperbaric oxygen therapy (HBOT) has been proposed as a potential treatment for modulating secondary post-traumatic neuronal death. However, the specific molecular mechanism by which HBOT modulates secondary brain damage through mitochondrial protection remains unclear. Spatial learning, reference memory, and motor performance were measured in rats before and after Controlled Cortical Impact (CCI) injury. The HBOT (2.5 ATA) was performed 4 h following the CCI and twice daily (12 h intervals) for four consecutive days. Mitochondrial functions were assessed via high-resolution respirometry on day 5 following CCI. Moreover, IHC was performed at the end of the experiment to evaluate cortical apoptosis, neuronal survival, and glial activation. The current result indicates that HBOT exhibits a multi-level neuroprotective effect. Thus, we found that HBOT prevents cortical neuronal loss, reduces the apoptosis marker (cleaved-Caspase3), and modulates glial cell proliferation. Furthermore, HBO treatment prevents the reduction in mitochondrial respiration, including non-phosphorylation state, oxidative phosphorylation, and electron transfer capacity. Additionally, a superior motor and spatial learning performance level was observed in the CCI group treated with HBO compared to the CCI group. In conclusion, our findings demonstrate that HBOT during the critical period following the TBI improves cognitive and motor damage via regulating glial proliferation apoptosis and protecting mitochondrial function, consequently preventing cortex neuronal loss.
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Affiliation(s)
- Reem Sakas
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel; (R.S.); (K.D.); (S.A.-A.); (A.B.-M.); (J.F.-S.)
- Research Institute of Galilee Medical Center, Nahariya 221001, Israel
| | - Katya Dan
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel; (R.S.); (K.D.); (S.A.-A.); (A.B.-M.); (J.F.-S.)
- Research Institute of Galilee Medical Center, Nahariya 221001, Israel
| | - Doron Edelman
- Neurosurgery Department, Tel-Aviv Sourasky Medical Center, Tel-Aviv 6423906, Israel;
| | - Saher Abu-Ata
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel; (R.S.); (K.D.); (S.A.-A.); (A.B.-M.); (J.F.-S.)
- Research Institute of Galilee Medical Center, Nahariya 221001, Israel
| | - Aviv Ben-Menashe
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel; (R.S.); (K.D.); (S.A.-A.); (A.B.-M.); (J.F.-S.)
- Research Institute of Galilee Medical Center, Nahariya 221001, Israel
| | - Yaseen Awad-Igbaria
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel; (R.S.); (K.D.); (S.A.-A.); (A.B.-M.); (J.F.-S.)
- Research Institute of Galilee Medical Center, Nahariya 221001, Israel
| | - Jean Francois-Soustiel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel; (R.S.); (K.D.); (S.A.-A.); (A.B.-M.); (J.F.-S.)
- Neurosurgery Department, Galilee Medical Center, Nahariya 221001, Israel
| | - Eilam Palzur
- Research Institute of Galilee Medical Center, Nahariya 221001, Israel
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Awad-Igbaria Y, Ferreira N, Keadan A, Sakas R, Edelman D, Shamir A, Francous-Soustiel J, Palzur E. HBO treatment enhances motor function and modulates pain development after sciatic nerve injury via protection the mitochondrial function. J Transl Med 2023; 21:545. [PMID: 37582750 PMCID: PMC10428612 DOI: 10.1186/s12967-023-04414-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/02/2023] [Indexed: 08/17/2023] Open
Abstract
BACKGROUND Peripheral nerve injury can cause neuroinflammation and neuromodulation that lead to mitochondrial dysfunction and neuronal apoptosis in the dorsal root ganglion (DRG) and spinal cord, contributing to neuropathic pain and motor dysfunction. Hyperbaric oxygen therapy (HBOT) has been suggested as a potential therapeutic tool for neuropathic pain and nerve injury. However, the specific cellular and molecular mechanism by which HBOT modulates the development of neuropathic pain and motor dysfunction through mitochondrial protection is still unclear. METHODS Mechanical and thermal allodynia and motor function were measured in rats following sciatic nerve crush (SNC). The HBO treatment (2.5 ATA) was performed 4 h after SNC and twice daily (12 h intervals) for seven consecutive days. To assess mitochondrial function in the spinal cord (L2-L6), high-resolution respirometry was measured on day 7 using the OROBOROS-O2k. In addition, RT-PCR and Immunohistochemistry were performed at the end of the experiment to assess neuroinflammation, neuromodulation, and apoptosis in the DRG (L3-L6) and spinal cord (L2-L6). RESULTS HBOT during the early phase of the SNC alleviates mechanical and thermal hypersensitivity and motor dysfunction. Moreover, HBOT modulates neuroinflammation, neuromodulation, mitochondrial stress, and apoptosis in the DRG and spinal cord. Thus, we found a significant reduction in the presence of macrophages/microglia and MMP-9 expression, as well as the transcription of pro-inflammatory cytokines (TNFa, IL-6, IL-1b) in the DRG and (IL6) in the spinal cord of the SNC group that was treated with HBOT compared to the untreated group. Notable, the overexpression of the TRPV1 channel, which has a high Ca2+ permeability, was reduced along with the apoptosis marker (cleaved-Caspase3) and mitochondrial stress marker (TSPO) in the DRG and spinal cord of the HBOT group. Additionally, HBOT prevents the reduction in mitochondrial respiration, including non-phosphorylation state, ATP-linked respiration, and maximal mitochondrial respiration in the spinal cord after SNC. CONCLUSION Mitochondrial dysfunction in peripheral neuropathic pain was found to be mediated by neuroinflammation and neuromodulation. Strikingly, our findings indicate that HBOT during the critical period of the nerve injury modulates the transition from acute to chronic pain via reducing neuroinflammation and protecting mitochondrial function, consequently preventing neuronal apoptosis in the DRG and spinal cord.
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Affiliation(s)
- Yaseen Awad-Igbaria
- Azrieli Faculty of Medicine, Bar-Ilan University, Zefat, Israel.
- Research Institute of Galilee Medical Center, P.O.B 21, 22100, Nahariya, Israel.
| | - Nadine Ferreira
- Psychobiology Research Laboratory, Mazor Mental Health Center, Akko, Israel
| | - Ali Keadan
- Research Institute of Galilee Medical Center, P.O.B 21, 22100, Nahariya, Israel
| | - Reem Sakas
- Azrieli Faculty of Medicine, Bar-Ilan University, Zefat, Israel
- Research Institute of Galilee Medical Center, P.O.B 21, 22100, Nahariya, Israel
| | - Doron Edelman
- UHN-Neurosurgery Spine Program, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
| | - Alon Shamir
- Psychobiology Research Laboratory, Mazor Mental Health Center, Akko, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Jean Francous-Soustiel
- Azrieli Faculty of Medicine, Bar-Ilan University, Zefat, Israel
- Research Institute of Galilee Medical Center, P.O.B 21, 22100, Nahariya, Israel
- Department of Neurosurgery, Galilee Medical Center, Nahariya, Israel
| | - Eilam Palzur
- Research Institute of Galilee Medical Center, P.O.B 21, 22100, Nahariya, Israel
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