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  1. Article: The Association Between Inflammatory Biomarkers and Vitamin D Level With the Evolution and Severity of Stroke.

    Safari, Anahid / Fadakar, Nima / Borhani-Haghighi, Afshin

    Basic and clinical neuroscience

    2022  Volume 13, Issue 6, Page(s) 807–814

    Abstract: Introduction: Vitamin D deficiency has been linked to the evolution of ischemic stroke, but the data regarding the association between stroke severity and vitamin D level is scarce.: Methods: Patients with first-ever ischemic stroke in the middle ... ...

    Abstract Introduction: Vitamin D deficiency has been linked to the evolution of ischemic stroke, but the data regarding the association between stroke severity and vitamin D level is scarce.
    Methods: Patients with first-ever ischemic stroke in the middle cerebral artery territory, within seven days after the stroke, were recruited. The control group included age- and gender-matched individuals. We compared 25-OH vitamin D (vitamin D), high sensitive C-reactive protein (hsCRP), serum amyloid A (SAA), and osteopontin levels between stroke patients and the control group. The association between stroke severity according to the National Institutes of Health Stroke Scale (NIHSS) and the Alberta stroke program early CT score (ASPECTS) and levels of vitamin D and inflammatory biomarkers were also studied.
    Results: There was an association between hypertension (P=0.035), diabetes mellitus (P=0.043), smoking (P=0.016), history of ischemic heart disease (P=0.002), higher SAA (P<0.001), higher hsCRP (P<0.001), and lower vitamin D levels (P=0.002) and stroke evolution in a case-control study. Meanwhile, in stroke patients, its severity was associated with higher SAA (P=0.04) and hsCRP (P=0.001), and lower vitamin D levels (P=0.043) according to clinical scale (higher admission NIHSS). According to the ASPECT score, higher SAA (P=0.017) and hsCRP (P=0.007), but not lower vitamin D levels, were associated with more infarct areas (P=0.149).
    Conclusion: Vitamin D may play a role in both the evolution and severity of stroke.
    Language English
    Publishing date 2022-11-01
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2652444-2
    ISSN 2228-7442 ; 2008-126X
    ISSN (online) 2228-7442
    ISSN 2008-126X
    DOI 10.32598/bcn.2021.1971.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Safety and efficacy of remote ischemic preconditioning in patients with severe carotid artery stenosis before carotid artery stenting: A proof-of-concept, randomized controlled trial.

    Asadi, Maedeh / Hooshmandi, Etrat / Emaminia, Fatemeh / Mardani, Hanieh / Keshtvarz-Hesamabadi, Ali Mohammad / Rismanchi, Mojtaba / Rahimi-Jaberi, Abbas / Ostovan, Vahid Reza / Fadakar, Nima / Borhani-Haghighi, Afshin

    Current journal of neurology

    2023  Volume 21, Issue 2, Page(s) 119–124

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2023-11-27
    Publishing country Iran
    Document type Journal Article
    ISSN 2717-011X
    ISSN (online) 2717-011X
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Short-term beneficial effects of human dental pulp stem cells and their secretome in a rat model of mild ischemic stroke.

    Jashire Nezhad, Nahid / Safari, Anahid / Namavar, Mohammad Reza / Nami, Mohammad / Karimi-Haghighi, Saeideh / Pandamooz, Sareh / Dianatpour, Mehdi / Azarpira, Negar / Khodabandeh, Zahra / Zare, Shahrokh / Hooshmandi, Etrat / Bayat, Mahnaz / Owjfard, Maryam / Zafarmand, Seyedeh Shaghayegh / Fadakar, Nima / Jaberi, Abbas Rahimi / Salehi, Mohammad Saied / Borhani-Haghighi, Afshin

    Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association

    2023  Volume 32, Issue 8, Page(s) 107202

    Abstract: Although cell therapy has been applied in regenerative medicine for decades, recent years have seen greatly increased attention being given to the use of stem cell-based derivatives such as cell-free secretome. Dental pulp stem cells (DPSCs) are widely ... ...

    Abstract Although cell therapy has been applied in regenerative medicine for decades, recent years have seen greatly increased attention being given to the use of stem cell-based derivatives such as cell-free secretome. Dental pulp stem cells (DPSCs) are widely available, easily accessible, and have high neuroprotective and angiogenic properties. In addition, DPSC-derived secretome contains a rich mixture of trophic factors. The current investigation evaluated the short-term therapeutic effects of human DPSCs and their secretome in a rat model of mild ischemic stroke. Mild ischemic stroke was induced by 30 min middle cerebral artery occlusion, and hDPSCs or their secretome was administered intra-arterially and intranasally. Neurological function, infarct size, spatial working memory, and relative expression of seven target genes in two categories of neurotrophic and angiogenic factors were assessed three days after stroke. In the short-term, all treatments reduced the severity of neurological and histological deficits caused by ischemic stroke. Moreover, transient middle cerebral artery occlusion led to the striatal and cortical over-expression of BDNF, NT-3, and angiogenin, while NGF and VEGF expression was reduced. Almost all interventions were able to modulate the expression of target genes after stroke. The obtained data revealed that single intra-arterial administration of hDPSCs or their secretome, single intranasal transplantation of hDPSCs, or repeated intranasal administration of hDPSC-derived secretome was able to ameliorate the devastating effects of a mild stroke, at least in the short-term.
    MeSH term(s) Rats ; Humans ; Animals ; Ischemic Stroke ; Infarction, Middle Cerebral Artery/therapy ; Dental Pulp ; Secretome ; Stem Cells ; Stroke/therapy
    Language English
    Publishing date 2023-06-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1131675-5
    ISSN 1532-8511 ; 1052-3057
    ISSN (online) 1532-8511
    ISSN 1052-3057
    DOI 10.1016/j.jstrokecerebrovasdis.2023.107202
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Seizure in patients with COVID-19.

    Emami, Amir / Fadakar, Nima / Akbari, Ali / Lotfi, Mehrzad / Farazdaghi, Mohsen / Javanmardi, Fatemeh / Rezaei, Tahereh / Asadi-Pooya, Ali A

    Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

    2020  Volume 41, Issue 11, Page(s) 3057–3061

    Abstract: Objective: The purpose of the current study was to collect the data on the occurrence of seizures in patients with COVID-19 and to clarify the circumstances of the occurrence of seizures in these patients.: Methods: All consecutive patients who ... ...

    Abstract Objective: The purpose of the current study was to collect the data on the occurrence of seizures in patients with COVID-19 and to clarify the circumstances of the occurrence of seizures in these patients.
    Methods: All consecutive patients who referred to healthcare facilities anywhere in Fars province (located in South Iran with a population of 4.851 million people) from February 19 until June 2, 2020, and had confirmed COVID-19 by positive result on polymerase chain reaction testing and seizure were included.
    Results: During the study period, 6,147 people had confirmed COVID-19 in Fars province, Iran; 110 people died from the illness (case fatality rate 1.79%). During this time period, five people had seizures (seizure rate 0.08%). In four patients, seizure was one of the presenting manifestations, and in one person, it happened during the course of hospital admission. Two patients had status epilepticus. All patients experienced hypoxemia and four of them needed respirator. Two patients had related metabolic derangements and one had cerebrospinal fluid (CSF) lymphocytic pleocytosis. Brain imaging was abnormal in three patients. Four patients died.
    Conclusion: New-onset seizures in critically ill patients with COVID-19 should be considered as acute symptomatic seizures and the treating physician should try to determine the etiology of the seizure and manage the cause immediately and appropriately. Detailed clinical, neurological, imaging, and electrophysiological investigations and attempts to isolate SARS-CoV-2 from CSF may clarify the role played by this virus in causing seizures in these patients.
    MeSH term(s) Adult ; Betacoronavirus ; COVID-19 ; Child, Preschool ; Coronavirus Infections/complications ; Female ; Humans ; Infant, Newborn ; Male ; Middle Aged ; Pandemics ; Pneumonia, Viral/complications ; SARS-CoV-2 ; Seizures/epidemiology ; Seizures/virology
    Keywords covid19
    Language English
    Publishing date 2020-09-19
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 2016546-8
    ISSN 1590-3478 ; 1590-1874
    ISSN (online) 1590-3478
    ISSN 1590-1874
    DOI 10.1007/s10072-020-04731-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A First Case of Acute Cerebellitis Associated with Coronavirus Disease (COVID-19): a Case Report and Literature Review.

    Fadakar, Nima / Ghaemmaghami, Sara / Masoompour, Seyed Masoom / Shirazi Yeganeh, Babak / Akbari, Ali / Hooshmandi, Sedighe / Ostovan, Vahid Reza

    Cerebellum (London, England)

    2020  Volume 19, Issue 6, Page(s) 911–914

    Abstract: Novel coronavirus (severe acute respiratory syndrome-coronavirus-2: SARS-CoV-2), which originated from Wuhan, China, has spread to the other countries in a short period of time. We report a 47-year-old male who was admitted to our hospital due to ... ...

    Abstract Novel coronavirus (severe acute respiratory syndrome-coronavirus-2: SARS-CoV-2), which originated from Wuhan, China, has spread to the other countries in a short period of time. We report a 47-year-old male who was admitted to our hospital due to suffering from progressive vertigo and ataxia for 7 days prior to the admission. Neurological examination revealed cerebellar dysfunction, and brain magnetic resonance imaging (MRI) depicted edema of the cerebellar hemisphere associated with leptomeningeal enhancement. Cerebrospinal fluid (CSF) analysis showed mild lymphocytic pleocytosis, elevated protein, and lactate dehydrogenase. SARS-CoV-2 RNA was detected in the oropharyngeal/nasopharyngeal and CSF specimens. As a result, treatment with lopinavir/ritonavir was initiated, and patient symptoms and signs improved significantly during the course of hospitalization. To the best of our knowledge, this is the first case of acute cerebellitis associated with COVID-19 disease which is reported in the literature so far.
    MeSH term(s) Acute Disease ; Betacoronavirus ; COVID-19 ; Cerebellar Diseases/complications ; Cerebellar Diseases/diagnostic imaging ; Coronavirus Infections/complications ; Coronavirus Infections/diagnostic imaging ; Humans ; Male ; Middle Aged ; Pandemics ; Pneumonia, Viral/complications ; Pneumonia, Viral/diagnostic imaging ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-07-31
    Publishing country United States
    Document type Case Reports ; Journal Article ; Review
    ZDB-ID 2112586-7
    ISSN 1473-4230 ; 1473-4222
    ISSN (online) 1473-4230
    ISSN 1473-4222
    DOI 10.1007/s12311-020-01177-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: From Hair to the Brain: The Short-Term Therapeutic Potential of Human Hair Follicle-Derived Stem Cells and Their Conditioned Medium in a Rat Model of Stroke.

    Karimi-Haghighi, Saeideh / Pandamooz, Sareh / Jurek, Benjamin / Fattahi, Sadegh / Safari, Anahid / Azarpira, Negar / Dianatpour, Mehdi / Hooshmandi, Etrat / Bayat, Mahnaz / Owjfard, Maryam / Zafarmand, Seyedeh Shaghayegh / Mostaghel, Mandana / Mousavi, Seyedeh Maryam / Jashire Nezhad, Nahid / Eraghi, Vida / Fadakar, Nima / Rahimi Jaberi, Abbas / Garcia-Esperon, Carlos / Spratt, Neil /
    Levi, Christopher / Salehi, Mohammad Saied / Borhani-Haghighi, Afshin

    Molecular neurobiology

    2023  Volume 60, Issue 5, Page(s) 2587–2601

    Abstract: The short-term therapeutic impacts of stem cells and their derivatives were frequently reported in preclinical investigations of ischemic stroke (IS); however, several drawbacks including accessibility, abundancy, and ethical concerns limited their ... ...

    Abstract The short-term therapeutic impacts of stem cells and their derivatives were frequently reported in preclinical investigations of ischemic stroke (IS); however, several drawbacks including accessibility, abundancy, and ethical concerns limited their clinical application. We describe here for the first time the therapeutic potential of human hair follicle-derived stem cells (hHFSCs) and their conditioned medium (CM) in a rat model of IS. Furthermore, we hypothesized that a combination of cell therapy with repeated CM administration might enhance the restorative efficiency of this approach compared to each treatment alone. Middle cerebral artery occlusion was performed for 30 min to induce IS. Immediately after reperfusion, hHFSCs were transplanted through the intra-arterial route and/or hHFSC-CM administered intranasally. The neurological outcomes, short-term spatial working memory, and infarct size were evaluated. Furthermore, relative expression of seven target genes in three categories of neuronal markers, synaptic markers, and angiogenic markers was assessed. The hHFSCs and hHFSC-CM treatments improved neurological impairments and reduced infarct size in the IS rats. Moreover, molecular data elucidated that IS was accompanied by attenuation in the expression of neuronal and synaptic markers in the evaluated brain regions and the interventions rescued these expression changes. Although there was no considerable difference between hHFSCs and hHFSC-CM treatments in the improvement of neurological function and decrement of infarct size, combination therapy was more effective to reduce infarction and elevation of target gene expression especially in the hippocampus. These findings highlight the curative potential of hHFSCs and their CM in a rat model of IS.
    MeSH term(s) Humans ; Rats ; Animals ; Culture Media, Conditioned/pharmacology ; Hair Follicle/metabolism ; Brain/metabolism ; Stroke/metabolism ; Infarction, Middle Cerebral Artery/therapy ; Infarction, Middle Cerebral Artery/drug therapy ; Stem Cells/metabolism ; Ischemic Stroke/metabolism ; Disease Models, Animal
    Chemical Substances Culture Media, Conditioned
    Language English
    Publishing date 2023-01-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 645020-9
    ISSN 1559-1182 ; 0893-7648
    ISSN (online) 1559-1182
    ISSN 0893-7648
    DOI 10.1007/s12035-023-03223-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: The role of Toll-like receptors (TLRs) in stroke.

    Fadakar, Kaveh / Dadkhahfar, Sahar / Esmaeili, Arash / Rezaei, Nima

    Reviews in the neurosciences

    2014  Volume 25, Issue 5, Page(s) 699–712

    Abstract: Toll-like receptors (TLRs) recognizing the exogenous pathogen-associated molecular patterns (PAMPs) are part of the innate immune system that plays a role in various challenging interactions between the neurons and the immune system. Stroke as a major ... ...

    Abstract Toll-like receptors (TLRs) recognizing the exogenous pathogen-associated molecular patterns (PAMPs) are part of the innate immune system that plays a role in various challenging interactions between the neurons and the immune system. Stroke as a major injury to the central nervous system (CNS) is one of the hot points of such cross-talk. The various roles of the different types of TLRs in stroke can be classified into three major categories: (1) the hazardous effect of TLRs with a focus on the part in poststroke neurodegeneration, (2) the beneficial effect of those types of TLRs that exert a neuroprotective effect following an ischemic insult, and (3) the role of TLRs in immunomodulation on one hand and the possible autoimmunity as a consequence of neuronal injury due to an ischemic attack on the other hand. However, the mentioned functions of TLRs, similar to many other parts of the immune system, might overlap in many aspects. The current review article, including both experimental and clinical studies, is an attempt to bring together the studies that have investigated the roles of TLRs in stroke while referring to the apparent controversies in this field, with pointing out the new ideas for further considerations.
    MeSH term(s) Animals ; Autoimmunity ; Humans ; Immunity, Innate ; MAP Kinase Signaling System ; Stroke/immunology ; Stroke/metabolism ; Stroke/physiopathology ; Toll-Like Receptors/metabolism
    Chemical Substances Toll-Like Receptors
    Language English
    Publishing date 2014
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 639035-3
    ISSN 2191-0200 ; 0334-1763
    ISSN (online) 2191-0200
    ISSN 0334-1763
    DOI 10.1515/revneuro-2013-0069
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Seizure in patients with COVID-19

    Emami, Amir / Fadakar, Nima / Akbari, Ali / Lotfi, Mehrzad / Farazdaghi, Mohsen / Javanmardi, Fatemeh / Rezaei, Tahereh / Asadi-Pooya, Ali A.

    Neurological Sciences ; ISSN 1590-1874 1590-3478

    2020  

    Keywords Psychiatry and Mental health ; Clinical Neurology ; Dermatology ; General Medicine ; covid19
    Language English
    Publisher Springer Science and Business Media LLC
    Publishing country us
    Document type Article ; Online
    DOI 10.1007/s10072-020-04731-9
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: A First Case of Acute Cerebellitis Associated with Coronavirus Disease (COVID-19)

    Fadakar, Nima / Ghaemmaghami, Sara / Masoompour, Seyed Masoom / Shirazi Yeganeh, Babak / Akbari, Ali / Hooshmandi, Sedighe / Ostovan, Vahid Reza

    The Cerebellum ; ISSN 1473-4222 1473-4230

    a Case Report and Literature Review

    2020  

    Keywords Neurology ; Clinical Neurology ; covid19
    Language English
    Publisher Springer Science and Business Media LLC
    Publishing country us
    Document type Article ; Online
    DOI 10.1007/s12311-020-01177-9
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Post-stroke immunodeficiency: effects of sensitization and tolerization to brain antigens.

    Esmaeili, Arash / Dadkhahfar, Sahar / Fadakar, Kaveh / Rezaei, Nima

    International reviews of immunology

    2012  Volume 31, Issue 5, Page(s) 396–409

    Abstract: Acute onset of cerebrovascular diseases seems to be related to a number of immunological alternations. After the initial pro-inflammatory response to brain ischemia accompanied by systemic inflammatory response syndrome, stroke interferes with function ... ...

    Abstract Acute onset of cerebrovascular diseases seems to be related to a number of immunological alternations. After the initial pro-inflammatory response to brain ischemia accompanied by systemic inflammatory response syndrome, stroke interferes with function of the innate and the adaptive immune cells, resulting in systemic immunosuppression. Although post-stroke immunodeficiency could predispose patients to life-threatening infections, it could potentially protect brain via reducing autoimmune reaction to the brain antigens. In this paper, we review current knowledge on the immunological alterations after brain ischemia, particularly effects of infection for stimulation of autoimmune response against brain antigens.
    MeSH term(s) Adaptive Immunity ; Autoantigens/immunology ; Bacterial Infections/complications ; Bacterial Infections/immunology ; Bacterial Infections/microbiology ; Bacterial Infections/pathology ; Blood-Brain Barrier/immunology ; Blood-Brain Barrier/pathology ; Brain/immunology ; Brain/pathology ; Brain Ischemia/complications ; Brain Ischemia/immunology ; Brain Ischemia/pathology ; Cytokines/biosynthesis ; Cytokines/immunology ; Humans ; Immune Tolerance ; Immunity, Innate ; Immunologic Deficiency Syndromes/complications ; Immunologic Deficiency Syndromes/immunology ; Immunologic Deficiency Syndromes/pathology ; Signal Transduction/immunology ; Stroke/complications ; Stroke/immunology ; Stroke/pathology
    Chemical Substances Autoantigens ; Cytokines
    Language English
    Publishing date 2012-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 632825-8
    ISSN 1563-5244 ; 1545-5858 ; 0883-0185
    ISSN (online) 1563-5244 ; 1545-5858
    ISSN 0883-0185
    DOI 10.3109/08830185.2012.723078
    Database MEDical Literature Analysis and Retrieval System OnLINE

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