Nikhilesh P Paliwal, Brijesh G Taksande, Shirish P Jain, Sachin P Borikar
{"title":"Possible involvement of GABAergic system on central amygdala Mediated anxiolytic effect of agmatine in rats.","authors":"Nikhilesh P Paliwal, Brijesh G Taksande, Shirish P Jain, Sachin P Borikar","doi":"10.1080/00207454.2023.2268262","DOIUrl":"10.1080/00207454.2023.2268262","url":null,"abstract":"<p><strong>Objectives: </strong>To study the pharmacological interactions between agmatine and gamma aminobutyric acid (GABA) modulatory agents in the regulation of anxiety-like behavior in rats.</p><p><strong>Materials and methods: </strong>Male Wistar rats were treated drugs per se or in combination and 15 min after last injection were subjected to elevated plus-maze (EPM) test. Anxiety-like behavior was evaluated by measuring behavioral conventional readout, open arm activity (duration and/or entries) for 5-minute duration.</p><p><strong>Results: </strong>Acute intra-central amygdala (CeA) injection of agmatine (0.1-0.6 μmol/site/rat), muscimol (0.25-1 nmol/site/rat), diazepam (5-20 μg/site/rat) and allopregnanolone (2-8 μg/site/rat) increased open arm entries of the rats in EPM suggesting anxiolytic effect in dose dependent manner. Moreover, the anxiolytic effect at subeffective dose of agmatine (0.1 μmol/site/rat) was potentiated by subeffective dose of muscimol (0.25 nmol/site/rat), diazepam (5 μg/site/rat) and allopregnanolone (4 μg/site/rat). Whereas, pretreatment with GABA<sub>A</sub> receptor antagonist, bicuculline (10 ng/site/rat) blocked the anxiolytic effect of agmatine and its synergistic effect of agmatine plus muscimol. Similarly, benzodiazepine (BZD) receptor antagonist, flumazenil (15 μg/site/rat) and GABA allosteric modulator antagonist, RO 15-45 13 (10 μg/site/rat) reduced the anxiolytic effect of agmatine, given alone and with diazepam and allopregnanolone, respectively.</p><p><strong>Conclusion: </strong>These results indicated that anxiolytic effect of agmatine is medicated via GABAergic mechanisms, probably conciliated by the GABA<sub>A</sub> receptor subtypes. Modulation of interplay between agmatine and GABA<sub>A</sub> receptor activity might be a pertinent solution for the regulation of anxiety.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1346-1356"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41141573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Clinical characteristics of patient with GFAP-IgG: a review of 31 patients from two tertiary referral centers in China.","authors":"Qiang Liu, Xiao Yang, Jingzi Zhang Bao, Boya Ma, Xiaoyan Niu, Xu Wang, Qing Zhang, Chao Quan","doi":"10.1080/00207454.2023.2277664","DOIUrl":"10.1080/00207454.2023.2277664","url":null,"abstract":"<p><strong>Objective: </strong>This study presents a comprehensive analysis of the clinical characteristics of 31 patients exhibiting cerebrospinal fluid (CSF) and/or serum positivity for GFAP-IgG, with a specific emphasis on 24 cases demonstrating only GFAP-IgG positivity. The investigation thoroughly evaluates their clinical, radiological, and laboratory features, as well as treatment responses, with the objective of offering clinicians potential diagnostic and therapeutic approaches.</p><p><strong>Methods: </strong>A total of 31 patients with GFAP-IgG in the CSF and/or serum were registered between August 2016 and August 2021 at the General Hospital of Ningxia Medical University and Huashan Hospital of Fudan University. We retrospectively reviewed their clinical records.</p><p><strong>Results: </strong>Overall, the patients were positive with GFAP-IgG in their CSF (15/31), in serum (6/31), and both CSF and serum (10/31). Among them, two were eventually diagnosed with astroglioma and primary central nervous system lymphoma, respectively; one patient had typical multiple sclerosis; three exhibited overlapping GFAP-IgG and aquaporin-4-IgG (AQP4-IgG); and one patient was coexisting N-methyl-D-aspartate receptor IgG. The remaining 24 patients were only GFAP-IgG positive. In total, 22 out of the 24 patients had abnormal MRI outcomes, involving the brain, meninges, and spinal cord. Besides, seven of the 24 patients developed optic neuritis. The CSF protein levels positively correlated with the Expanded Disability Status Scale score (EDSSs). Significantly decreased EDSSs, modified Rankin Scale score, GFAP-IgG titer, CSF protein level, and CSF white blood cell counts were observed after immunomodulatory therapy.</p><p><strong>Conclusion: </strong>The clinical manifestations of GFAP-IgG exhibit a wide range of phenotypes that lack specificity. These findings emphasize the significance of not exclusively relying on the presence of antibodies to diagnose GFAP-A, but rather integrating them with the clinical phenotypes. GFAP-IgG testing enables the diagnosis of autoimmune GFAP astrocytopathy, a treatable autoimmune disease affecting the central nervous system. This condition provides opportunities for investigating innovative mechanisms of CNS autoimmunity and inflammation.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1383-1394"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66783856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nerve growth factor and angiotensin converting enzyme 2 levels in children with neurodevelopmental disorders.","authors":"Melike Kevser Gul, Murside Sahin, Esra Demirci, Sevgi Ozmen, Reyhan Tahtasakal, Elif Funda Sener","doi":"10.1080/00207454.2023.2257871","DOIUrl":"10.1080/00207454.2023.2257871","url":null,"abstract":"<p><strong>Objective: </strong>Neurodevelopmental disorders (NDDs) are the most common psychiatric disorders in childhood, and there are many factors in their etiology. In recent years, many biomarkers have been studied to elucidate the etiology of these disorders. In this study, it was aimed to investigate the levels of nerve growth factor (NGF) and angiotensin converting enzyme 2 (ACE2) in attention deficit hyperactivity disorder (ADHD), autism spectrum disorder (ASD), and intellectual disability (ID).</p><p><strong>Methods: </strong>The study included 74 children with NDDs (the number of patients in ADHD, ASD and ID groups were 24, 25 and 25 respectively) and 30 healthy controls (HCs). Serum NGF and ACE2 levels were studied with ELISA kits, also complete blood count (CBC), levels of fasting glucose and serum lipids were assessed.</p><p><strong>Results: </strong>ACE2 levels were found to be lower in NDD group than HCs in girls. In boys with ASD, triglyceride levels were significantly higher than other groups. Also a positive correlation was found between ACE2 and NGF levels when all sample assessed together.</p><p><strong>Conclusions: </strong>This study is a premise for investigating ACE2 and NGF in NDDs. The role of these markers in ADHD, ASD, ID and other NDDs and their associations with gender should be assessed by studies in which both larger sample groups and more disorders.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1235-1241"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10578273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alia Saberi, Sajjad Saadat, Fatemeh Dadar, Mozaffar Hosseininezhad, Kasra Sarlak, Samaneh Ghorbani Shirkouhi, Nasim Athari, Nima Broomand Lomer
{"title":"Translation and validation of the Persian version of the Stroke Self-Efficacy Questionnaire in stroke survivors.","authors":"Alia Saberi, Sajjad Saadat, Fatemeh Dadar, Mozaffar Hosseininezhad, Kasra Sarlak, Samaneh Ghorbani Shirkouhi, Nasim Athari, Nima Broomand Lomer","doi":"10.1080/00207454.2023.2273776","DOIUrl":"10.1080/00207454.2023.2273776","url":null,"abstract":"<p><strong>Background: </strong>The Stroke Self-Efficacy Questionnaire (SSEQ) is a self-report scale that measures stroke survivors' self-efficacy and covers specific domains of functioning after stroke.</p><p><strong>Objectives: </strong>We aimed to determine the validity and reliability of the Persian version of the SSEQ.</p><p><strong>Methods: </strong>This descriptive cross-sectional study included 124 stroke patients in the sub-acute phase (between 2 weeks and 3 months of stroke onset). The original SSEQ was translated to Persian and back-translated to English. Demographic, neurologic examination, 'Persian Stroke Self-Efficacy Questionnaire (SSEQ-P)', and 'General Self-Efficacy Scale' (GSE-10) data were collected. The reliability of the questionnaire was evaluated by test-retest assessment among 30 people with stroke at an interval of two weeks. Factor analysis was used to assess the validity of SSEQ-P. Cronbach's alpha assessed internal consistency in all participants. Statistical analysis was performed by SPSS software version 23 and SmartPLS version 3.</p><p><strong>Results: </strong>In this study, the mean of SSEQ scores was 87.99 ± 37.09. Content Validity Ratio (CVR) and Content Validity Index (CVI) were favorable. Convergent validity of the questionnaire was reported (<i>r</i> = 0.669) using GSE. Factor loadings of items in SSEQ ranged from 0.41 to 0.92. Validity indices (AVE = 0.75, SRMR = 0.07) showed that the single-factor model of the present study owns a favorable fit. Test-retest reliability and Cronbach's alpha values of SSEQ in the present study were calculated at 0.80 and 0.97, respectively.</p><p><strong>Conclusions: </strong>The Persian version of the SSEQ depicted acceptable reliability and validity and can be utilized to evaluate the self-efficacy of patients with stroke.HIGHLIGHTSStroke Self-Efficacy Questionnaire (SSEQ) is a self-report scale that measures stroke survivors' self-efficacy.The Persian version of the SSEQ demonstrated acceptable reliability and validity and can be used in stroke patients.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1365-1371"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49677311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Potential role of thoracolumbar fascia in younger middle-aged patients with chronic low back pain.","authors":"S Gumruk Aslan, S Koylu Uyar, E Gurcay","doi":"10.1080/00207454.2023.2251671","DOIUrl":"10.1080/00207454.2023.2251671","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to quantitatively assess the thickness of the thoracolumbar fascia (TLF) and lumbar multifidus muscle through ultrasound imaging in younger-middle aged individuals, both those experiencing chronic low back pain (LBP) and those without LBP. Additionally, the study sought to explore the potential significance of these anatomical structures in relation to clinical and sonographic findings.</p><p><strong>Method: </strong>A cross-sectional study was conducted involving a cohort of 50 participants, divided into two groups: chronic LBP group (Group LBP, <i>n</i> = 30) and a group without LBP (Group control, <i>n</i> = 20). Participants from both groups underwent assessments pertaining to pain characteristics (intensity and quality), functional impairment, and kinesiophobia. The thicknesses of the thoracolumbar fascia and lumbar multifidus muscle were measured using ultrasonography.</p><p><strong>Results: </strong>Among participants with chronic LBP, the thoracolumbar fascia displayed a statistically significant increase in thickness on the left side, whereas the lumbar multifidus muscle exhibited reduced thickness on the left side. Notably, positive correlations were observed between the thickness of the thoracolumbar fascia and scores from the Numerical Rating Scale (NRS) for pain intensity (<i>r</i> = 0.472, <i>p</i> = 0.008) as well as the McGill Pain Questionnaire (MPQ) (<i>r</i> = 0.547, <i>p</i> = 0.002). Moreover, a positive correlation was established between the thickness of the lumbar multifidus muscle and the modified Schober test (<i>r</i> = 0.174, <i>p</i> = 0.040). However, the thickness of the lumbar multifidus muscle demonstrated a negative correlation with age (r = -0.304, <i>p</i> = 0.032). Multiple logistic regression analysis did not identify any significant predictors for the presence of LBP based on demographic or clinical variables.</p><p><strong>Conclusions: </strong>Individuals afflicted with chronic LBP exhibited pronounced thickening of the thoracolumbar fascia and attenuation of the lumbar multifidus muscle in comparison to asymptomatic counterparts. Notably, increased thickness of the thoracolumbar fascia corresponded to heightened pain intensity, while reduction in lumbar multifidus muscle thickness was associated with decreased lumbar flexion ability. These findings underscore the importance of incorporating tailored regimens targeting both fascial and muscular components in the rehabilitation of individuals with LBP.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1198-1204"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10173687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Probable eculizumab-associated hepatotoxicity in a patient with neuromyelitis optica: a case report.","authors":"Koc Emine Rabia, Turan Ömer Faruk, Saridas Furkan, Elhamida Sarra Lazrak, Pinar Acar Ozen, Aslı Tuncer","doi":"10.1080/00207454.2023.2253361","DOIUrl":"10.1080/00207454.2023.2253361","url":null,"abstract":"<p><strong>Objectives: </strong>Neuromyelitis optica (NMO) is an inflammatory, autoimmune and demyelinating disease of the central nervous system and is often characterized by attacks of severe optic neuritis and long segment myelitis. Identifying the disease-specific pathogenic anti-AQP4 autoantibody in NMOSD has allowed the development of highly effective disease-modifying drugs in the treatment phase. Eculizumab is a humanized antibody that binds to complement C5 and inhibits the formation of the C5b-induced membrane attack complex. It is approved for treating many diseases in which tissue damage is accompanied by complement (such as neuromyelitis optica, myasthenia gravis, autoimmune hemolytic anemia and paroxysmal hemoglobinuria).</p><p><strong>Methods: </strong>We present a patient diagnosed with NMO who developed possible drug-induced liver injury three months after the start of eculizumab treatment.</p><p><strong>Result: </strong>After discontinuing eculizumab treatment, liver function tests gradually regressed in a month.</p><p><strong>Conclusions: </strong>Eculizumab-associated hepatotoxicity is a previously unreported adverse event in NMOSD patients. Therefore, patients should be monitored for liver function tests during eculizumab treatment, and care should be taken for hepatotoxicity. If hepatotoxicity is detected while under eculizumab treatment, patients should be investigated for other drug use, complementary food supplementation, or possible autoimmune hepatitis, and other potential causes should be excluded.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1205-1209"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10474359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rawand H Al-Dmour, Nafe M Al-Tawarah, Nesrin Mwafi, Banan M Alkhataybeh, Khaled M Khleifat, Amjad Tarawneh, Anas O Satari, Sahem M Alkharabsheh, Layla Albustanji
{"title":"Enhancement of hippocampal-dependent spatial memory by Ashwagandha (<i>Withania somnifera</i>) characterized by activation of NMDA receptors against monosodium glutamate-induced neurotoxicity in rats.","authors":"Rawand H Al-Dmour, Nafe M Al-Tawarah, Nesrin Mwafi, Banan M Alkhataybeh, Khaled M Khleifat, Amjad Tarawneh, Anas O Satari, Sahem M Alkharabsheh, Layla Albustanji","doi":"10.1080/00207454.2023.2255372","DOIUrl":"10.1080/00207454.2023.2255372","url":null,"abstract":"<p><strong>Background and aim: </strong>Monosodium glutamate (MSG) is used in food-additives, and the Food and Drug Administration has placed it under intense scrutiny following several reports that it causes glutamate neurotoxicity. Ashwagandha (ASH) roots are traditionally used for memory enhancement. This study aimed to evaluate the nootropic activity of ASH as well as its therapeutic anti-amnesic activity against MSG-induced hippocampal-dependent spatial memory impairment and hippocampal-NMDAR modulation.</p><p><strong>Method: </strong>A total of 36 rats were divided equally into six groups (<i>n</i> = 6 in each group); the rats in the normal and negative groups were administered daily doses of normal saline and MSG (300 mg/kg), respectively, for 21 days. Two nootropic groups were administered ASH at 300 and 500 mg/kg o.p., respectively, for 21 days. Two other treatment groups were administered daily doses of MSG 300 mg/kg o.p. as well as 300 mg/kg and 500 mg/kg o.p. of ASH for 21 days. The rats' spatial memory was assessed for five days using the MWM. Additionally, NMDAR were measured quantitatively by immunohistochemistry.</p><p><strong>Results: </strong>We found that the rats in the nootropic groups showed significantly enhanced nootropic activity characterized by improved hippocampal-dependent spatial memory, as well as increases in the level of NMDAR in the Cornu Ammonis 1 region of their hippocampus. Moreover, we elucidated the therapeutic potential of ASH to protect against the depression of spatial memory caused by MSG-induced neurotoxicity.</p><p><strong>Conclusion: </strong>Further, we elucidated a strong correlation between NMDAR-positive cells in the hippocampus and enhancement of spatial learning induced by long-term administration of ASH as well as a strong correlation between NMDAR positive cells in the hippocampus and depression of spatial learning induced by long-term administration of ASH and MSG.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1220-1228"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10669316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Histone demethylases in neurodevelopment and neurodegenerative diseases.","authors":"Haiying Wang, Beiyi Guo, Xiaoqiang Guo","doi":"10.1080/00207454.2023.2276656","DOIUrl":"10.1080/00207454.2023.2276656","url":null,"abstract":"<p><p>Neurodevelopment can be precisely regulated by epigenetic mechanisms, including DNA methylations, noncoding RNAs, and histone modifications. Histone methylation was a reversible modification, catalyzed by histone methyltransferases and demethylases. So far, dozens of histone lysine demethylases (KDMs) have been discovered, and they (members from KDM1 to KDM7 family) are important for neurodevelopment by regulating cellular processes, such as chromatin structure and gene transcription. The role of KDM5C and KDM7B in neural development is particularly important, and mutations in both genes are frequently found in human X-linked mental retardation (XLMR). Functional disorders of specific KDMs, such as KDM1A can lead to the development of neurodegenerative diseases, including Alzheimer's disease (AD) and Parkinson's disease (PD). Several KDMs can serve as potential therapeutic targets in the treatment of neurodegenerative diseases. At present, the function of KDMs in neurodegenerative diseases is not fully understood, so more comprehensive and profound studies are needed. Here, the role and mechanism of histone demethylases were summarized in neurodevelopment, and the potential of them was introduced in the treatment of neurodegenerative diseases.</p>","PeriodicalId":14161,"journal":{"name":"International Journal of Neuroscience","volume":" ","pages":"1372-1382"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71412174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}