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Stefanyshyn V, Sheiko M, Pyantkovska N, Stetsyuk R, Pokhylko V, Fishchuk L, Rossokha Z. Combination of 15q24 Microdeletion Syndrome and Metabolic Imbalance in a Patient with Atypical Autism. J Mol Neurosci 2024; 74:1. [PMID: 38180598 DOI: 10.1007/s12031-023-02183-2] [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: 09/22/2023] [Accepted: 11/16/2023] [Indexed: 01/06/2024]
Abstract
Autistic spectrum disorders (ASD) in children are becoming increasingly common, reaching epidemic proportions. Among the various causes contributing to the development of ASD, the leading place belongs to both chromosomal pathologies and genetic syndromes and their consequence - metabolic imbalance or severe metabolic disorders. Depending on the degree of metabolic pathway damage, certain phenotypes of ASD are formed. A deletion of ~3.1 Mb of chromosome 15q24 was detected in the examined 2-year-old boy with a "mild phenotype" of autism without an obvious delay in mental development. A wide range of additional studies included genetic testing of folate metabolism genes and analysis of metabolites of the methylation cycle and detection of antibodies to folic acid alpha receptors. A heterozygous variant of the MTHFR gene (rs1801133), moderate hyperhomocysteinemia, hypermethylation, and an increased titer of antibodies to alpha receptors of folic acid were revealed in the patient. This clinical case indicates the need for a multifaceted clinical and laboratory examination in children with ASD to identify the metabolic phenotype and prescribe personalized treatment. A personalized treatment strategy will improve the cognitive functions, psycho-emotional state, and social adaptation of individuals with ASD in the long term."
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Affiliation(s)
| | | | | | | | | | - Liliia Fishchuk
- State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine.
| | - Zoia Rossokha
- State Institution "Reference-Centre for Molecular Diagnostic of Public Health Ministry of Ukraine", Kyiv, Ukraine
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Hamed RMR, Ayoub MI, Abdel Samie M, Hamam NN. Anti-ganglioside M1 autoantibodies in Egyptian children with autism: a cross-sectional comparative study. MIDDLE EAST CURRENT PSYCHIATRY 2022. [PMCID: PMC9095053 DOI: 10.1186/s43045-022-00202-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background Autism may be one of the pediatric autoimmune neuropsychiatric disorders, and several studies investigated the frequency of serum anti-ganglioside M1 autoantibodies in children with autism, as possible indicators of autoimmunity to the brain. The current study aimed to compare the level of anti-ganglioside M1 autoantibodies between autistic and normally developed children and to study the correlation between the level of anti-ganglioside M1 autoatibodies and the severity of autism. Forty children with autism and 40 age- and gender-matched healthy controls were enrolled. The Childhood Autism Rating Scale was used to assess the severity of autism in the patient group at the time of the study. The clinical and demographic data were recorded and plasma anti-ganglioside M1 autoantibodies level was measured in both groups. Results The mean anti-ganglioside M1 autoantibodies level was significantly higher in autistic patients compared to the control group. The anti-ganglioside M1 autoantibodies level in patients with mild to moderate severity was insignificantly lower than its level in patients with severe autism. Conclusions Plasma anti-ganglioside MI autoantibodies levels are higher in autistic patients than in healthy controls which may imply that some cases of autism may be autoimmune in nature.
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Baj J, Flieger W, Flieger M, Forma A, Sitarz E, Skórzyńska-Dziduszko K, Grochowski C, Maciejewski R, Karakuła-Juchnowicz H. Autism spectrum disorder: Trace elements imbalances and the pathogenesis and severity of autistic symptoms. Neurosci Biobehav Rev 2021; 129:117-132. [PMID: 34339708 DOI: 10.1016/j.neubiorev.2021.07.029] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 02/08/2023]
Abstract
The identification of biomarkers as diagnostic tools and predictors of response to treatment of neurological developmental disorders (NDD) such as schizophrenia (SZ), attention deficit hyperactivity disorder (ADHD), or autism spectrum disorder (ASD), still remains an important challenge for clinical medicine. Metallomic profiles of ASD patients cover, besides essential elements such as cobalt, chromium, copper, iron, manganese, molybdenum, zinc, selenium, also toxic metals burden of: aluminum, arsenic, mercury, lead, beryllium, nickel, cadmium. Performed studies indicate that children with ASD present a reduced ability of eliminating toxic metals, which leads to these metals' accumulation and aggravation of autistic symptoms. Extensive metallomic studies allow a better understanding of the importance of trace elements as environmental factors in the pathogenesis of ASD. Even though a mineral imbalance is a fact in ASD, we are still expecting relevant tests and the elaboration of reference levels of trace elements as potential biomarkers useful in diagnosis, prevention, and treatment of ASD.
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Affiliation(s)
- Jacek Baj
- Department of Anatomy, Medical University of Lublin, Jaczewskiego Street 8b, 20-400, Lublin, Poland.
| | - Wojciech Flieger
- Faculty of Medicine, Medical University of Lublin, Aleje Racławickie 1, 20-059, Lublin, Poland
| | - Michał Flieger
- Faculty of Medicine, Medical University of Lublin, Aleje Racławickie 1, 20-059, Lublin, Poland
| | - Alicja Forma
- Chair and Department of Forensic Medicine, Medical University of Lublin, Jaczewskiego Street 8b, 20-090, Lublin, Poland
| | - Elżbieta Sitarz
- Chair and 1st Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, Gluska Street 1, 20-439, Lublin, Poland
| | - Katarzyna Skórzyńska-Dziduszko
- Chair and Department of Human Physiology, Medical University of Lublin, Radziwillowska Street 11, Lublin, 20-080, Poland
| | - Cezary Grochowski
- Laboratory of Virtual Man, Chair of Anatomy, Medical University of Lublin, Jaczewskiego Street 8b, 20-400, Lublin, Poland
| | - Ryszard Maciejewski
- Department of Anatomy, Medical University of Lublin, Jaczewskiego Street 8b, 20-400, Lublin, Poland
| | - Hanna Karakuła-Juchnowicz
- Chair and 1st Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, Gluska Street 1, 20-439, Lublin, Poland; Department of Clinical Neuropsychiatry, Medical University of Lublin, Gluska Street 1, 20-439, Lublin, Poland
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Moradi K, Ashraf-Ganjouei A, Tavolinejad H, Bagheri S, Akhondzadeh S. The interplay between gut microbiota and autism spectrum disorders: A focus on immunological pathways. Prog Neuropsychopharmacol Biol Psychiatry 2021; 106:110091. [PMID: 32891667 DOI: 10.1016/j.pnpbp.2020.110091] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/21/2020] [Accepted: 08/30/2020] [Indexed: 12/23/2022]
Abstract
Autism spectrum disorders (ASD) are a group of neurodevelopmental disorders characterized by impairments in social and cognitive activities, stereotypical and repetitive behaviors and restricted areas of interest. A remarkable proportion of ASD patients represent immune dysregulation as well as gastrointestinal complications. Hence, a novel concept has recently emerged, addressing the possible intercommunication between the brain, the immune system, the gut and its commensals. Here, we provide an overview of how gut microbes and their metabolites are associated with neurobehavioral features of ASD through various immunologic mechanisms. Moreover, we discuss the potential therapeutic options that could modify these features.
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Affiliation(s)
- Kamyar Moradi
- Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Ashraf-Ganjouei
- Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Tavolinejad
- Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayna Bagheri
- Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahin Akhondzadeh
- Psychiatric Research Center, Roozbeh Psychiatric Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Carpita B, Marazziti D, Palego L, Giannaccini G, Betti L, Dell'Osso L. Microbiota, Immune System and Autism Spectrum Disorders: An Integrative Model towards Novel Treatment Options. Curr Med Chem 2020; 27:5119-5136. [PMID: 31448708 DOI: 10.2174/0929867326666190328151539] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Autism Spectrum Disorder (ASD) is a condition strongly associated with genetic predisposition and familial aggregation. Among ASD patients, different levels of symptoms severity are detectable, while the presence of intermediate autism phenotypes in close relatives of ASD probands is also known in literature. Recently, increasing attention has been paid to environmental factors that might play a role in modulating the relationship between genomic risk and development and severity of ASD. Within this framework, an increasing body of evidence has stressed a possible role of both gut microbiota and inflammation in the pathophysiology of neurodevelopment. The aim of this paper is to review findings about the link between microbiota dysbiosis, inflammation and ASD. METHODS Articles ranging from 1990 to 2018 were identified on PUBMED and Google Scholar databases, with keyword combinations as: microbiota, immune system, inflammation, ASD, autism, broad autism phenotype, adult. RESULTS Recent evidence suggests that microbiota alterations, immune system and neurodevelopment may be deeply intertwined, shaping each other during early life. However, results from both animal models and human samples are still heterogeneous, while few studies focused on adult patients and ASD intermediate phenotypes. CONCLUSION A better understanding of these pathways, within an integrative framework between central and peripheral systems, might not only shed more light on neural basis of ASD symptoms, clarifying brain pathophysiology, but it may also allow to develop new therapeutic strategies for these disorders, still poorly responsive to available treatments.
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Affiliation(s)
- Barbara Carpita
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Via Roma, 6756100 Pisa, Italy
| | - Donatella Marazziti
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Via Roma, 6756100 Pisa, Italy
| | - Lionella Palego
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Via Roma, 6756100 Pisa, Italy
| | - Gino Giannaccini
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Via Roma, 6756100 Pisa, Italy
| | - Laura Betti
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Via Roma, 6756100 Pisa, Italy
| | - Liliana Dell'Osso
- Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Via Roma, 6756100 Pisa, Italy
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Serologic Markers of Autism Spectrum Disorder. J Mol Neurosci 2017; 62:420-429. [PMID: 28730336 DOI: 10.1007/s12031-017-0950-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 07/12/2017] [Indexed: 12/27/2022]
Abstract
According to WHO data, about 67 million people worldwide are affected by autism, and this number grows by 14% annually. Among the possible causes of autism are genetic modifications, organic lesions of the central nervous system, metabolic disorders, influence of viral and bacterial infections, chemical influence to the mother's body during pregnancy, etc. The conducted research shows that research papers published until today do not name any potential protein markers that meet the requirements of the basic parameters for evaluating the efficiency of disease diagnostics, in particular high sensitivity, specificity, and accuracy. Conducting proteomic research on a big scale in order to detect serologic markers of protein nature associated with development of autism spectrum disorders seems to be highly relevant.
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Desoky T, Hassan MH, Fayed HM, Sakhr HM. Biochemical assessments of thyroid profile, serum 25-hydroxycholecalciferol and cluster of differentiation 5 expression levels among children with autism. Neuropsychiatr Dis Treat 2017; 13:2397-2403. [PMID: 28979127 PMCID: PMC5608227 DOI: 10.2147/ndt.s146152] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The exact pathogenesis of autism is still unknown. Both thyroid hormones and 25(OH)D are important for brain development, in addition to CD5; all have immunomodulatory actions by which their dysregulation may have a potential role in autism pathogenesis. OBJECTIVES The objectives of this study were to assess the thyroid profile, serum 25(OH)D levels and CD5 expression levels among autistic patients and to find out the correlations between the measured biomarkers with each other on one side and with the disease severity on the other side. PATIENTS AND METHODS This cross-sectional case-control study has been conducted on 60 children with autism and 40 controls, recruited from Qena Governorate, Upper Egypt. Childhood Autism Rating Scale (CARS) score was used to assess the included patients. Biochemical assays of thyroid function in the form of free triiodothyronine (FT3), free tetraiodothyronine (FT4), thyroid-stimulating hormone (TSH) and 25(OH)D were done using commercially available enzyme-linked immunosorbent assay (ELISA) kits, while CD5 expression levels were measured using flow cytometry (FCM) analysis for all the included patients and controls. RESULTS The overall measurement results show significant higher mean serum TSH levels, mean CD5 expression levels with significant lower mean serum 25(OH)D levels among autistic children when compared with the control group (p<0.05 for all). Significant negative correlations between CD5 with FT3, FT4 and 25(OH)D were observed. CARS score showed significant negative correlations with both FT3 and 25(OH)D, while it was positively correlated with CD5 in a significant manner (p<0.05 for all). CONCLUSION Elevated CD5 expression and decreased 25(OH)D stores could play a potential role in the pathogenesis of autism via their immune-modulator actions. High TSH serum levels among autistic children, although within the physiological range, reflect the presence of thyroid dysfunction among such children, which needs further assessment.
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Affiliation(s)
| | | | | | - Hala M Sakhr
- Department of Pediatrics, Qena Faculty of Medicine, Qena University Hospitals, South Valley University, Qena, Egypt
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Kern JK, Geier DA, Sykes LK, Haley BE, Geier MR. The relationship between mercury and autism: A comprehensive review and discussion. J Trace Elem Med Biol 2016; 37:8-24. [PMID: 27473827 DOI: 10.1016/j.jtemb.2016.06.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/17/2016] [Accepted: 06/01/2016] [Indexed: 12/28/2022]
Abstract
The brain pathology in autism spectrum disorders (ASD) indicates marked and ongoing inflammatory reactivity with concomitant neuronal damage. These findings are suggestive of neuronal insult as a result of external factors, rather than some type of developmental mishap. Various xenobiotics have been suggested as possible causes of this pathology. In a recent review, the top ten environmental compounds suspected of causing autism and learning disabilities were listed and they included: lead, methyl-mercury, polychorinated biphenyls, organophosphate pesticides, organochlorine pesticides, endocrine disruptors, automotive exhaust, polycyclic aromatic hydrocarbons, polybrominated diphenyl ethers, and perfluorinated compounds. This current review, however, will focus specifically on mercury exposure and ASD by conducting a comprehensive literature search of original studies in humans that examine the potential relationship between mercury and ASD, categorizing, summarizing, and discussing the published research that addresses this topic. This review found 91 studies that examine the potential relationship between mercury and ASD from 1999 to February 2016. Of these studies, the vast majority (74%) suggest that mercury is a risk factor for ASD, revealing both direct and indirect effects. The preponderance of the evidence indicates that mercury exposure is causal and/or contributory in ASD.
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Affiliation(s)
- Janet K Kern
- Institute of Chronic Illnesses, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA; Council for Nutritional and Environmental Medicine, Mo i Rana, Norway; CoMeD, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA.
| | - David A Geier
- Institute of Chronic Illnesses, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA; CoMeD, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA
| | - Lisa K Sykes
- CoMeD, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA
| | - Boyd E Haley
- University of Kentucky, 410 Administration Drive, Lexington, KY, 40506 USA
| | - Mark R Geier
- Institute of Chronic Illnesses, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA; CoMeD, Inc., 14 Redgate Court, Silver Spring, MD, 20905 USA
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Crawford S. On the origins of autism: The Quantitative Threshold Exposure hypothesis. Med Hypotheses 2015; 85:798-806. [PMID: 26481157 DOI: 10.1016/j.mehy.2015.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 09/21/2015] [Accepted: 10/08/2015] [Indexed: 12/27/2022]
Abstract
The Quantitative Threshold Exposure (QTE) hypothesis is a multifactorial threshold model that accounts for the cumulative effects of risk factor exposure in both the causation of autism spectrum disorder (ASD) and its dramatic increase over the past 30 years. The QTE hypothesis proposes that ASD is triggered by the cumulative effects of high-level exposure to endogenous and environmental factors that act as antigens to impair normal immune system (IS) and associated central nervous system (CNS) functions during critical developmental stages. The quantitative threshold parameters that comprise a cumulative risk for the development of ASD are identified by the assessment of documented epidemiological factors that, in sum, determine the likelihood that ASD will occur as a result of their effects on critically integrated IS and CNS pathways active during prenatal, neo-natal and early childhood brain maturation. The model proposes an explanation for the relationship between critical developmental stages of brain/immune system development in conjunction with the quantitative effects of genetic and environmental risk factors that may interface with these critical developmental windows. This model may be useful even when the individual contributions of specific risk factors cannot be quantified, as it proposes that the combined quantitative level of exposure to risk factors for ASD rather than exposure to any one risk factor per se defines threshold occurrence rates.
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Affiliation(s)
- S Crawford
- Department of Biology, Southern Connecticut State University, 501 Crescent Street, New Haven, CT 06515, United States.
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Iqbal M, Bashir S, Al-Ayadhi L. Prevalence of antimitochondrial antibodies in autism spectrum subjects. FUTURE NEUROLOGY 2015. [DOI: 10.2217/fnl.15.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
ABSTRACT Objective: Autism is a neurodevelopmental disorder characterized by impairment in verbal and nonverbal communication, repetitive and stereotypic behavior. Dysregulated immune system has a role in the pathogenesis of Autism. This study was designed to measure the prevalence of antimitochondrial (AM) antibodies in a group of autistic children. Methods: AM antibodies subtype 2 (AMA-M2) were evaluated by indirect solid phase enzyme immunoassay in 62 autistic children and 14 age-matched healthy controls. Autistic activity was assessed by using the Childhood Autism Rating Scale. Results: Significantly elevated levels of AMA-M2 were observed in the sera of autistic children (n = 54, 0.221 ± 0.029 IU/ml [mean ± SEM]) compared with healthy controls (n = 14, 0.111 ± 0.010 IU/ml [mean ± SEM], p = 0.0008) and there was no significant difference in patients with moderate to severe autism (p = 0.49). AM antibodies in autistic patients have no correlation with Childhood Autism Rating Scale score. Conclusion: The current study demonstrated significantly high levels of AMA-M2 in autistic subjects when compared with healthy controls. Further large-scale studies are required to dissect any pathogenic role of these antibodies in the development of autism.
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Affiliation(s)
- Muhammad Iqbal
- Aging Research Chair, Department of Physiology, Faculty of Medicine, King Saud University, PO box 2925, Riyadh 11461, Saudi Arabia
| | - Shahid Bashir
- KSU-Autism Research & Treatment Center, AL-Amodi Autism Research Chair, Department of Physiology, Faculty of Medicine, King Saud University, PO box 2925, Riyadh 11461, Saudi Arabia
- Berenson-Allen Center for Noninvasive Brain Stimulation, Division of Cognitive Neurology, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Laila Al-Ayadhi
- KSU-Autism Research & Treatment Center, AL-Amodi Autism Research Chair, Department of Physiology, Faculty of Medicine, King Saud University, PO box 2925, Riyadh 11461, Saudi Arabia
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Lisik MZ, Gutmajster E, Sieroń AL. Anti-neuronal antibodies in patients with fragile X syndrome: is there a role of autoimmunity in its pathogenesis? NEURODEGENER DIS 2014; 15:45-9. [PMID: 25500855 DOI: 10.1159/000369215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 10/20/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Fragile X syndrome (FXS) is a single-gene disorder with a broad spectrum of involvement, including cognitive and behavioural impairments of varying degrees with specific physical features and a strong association with autism. OBJECTIVES In this study, the frequency of serum anti-neural antibodies was investigated in FXS patients who did and those who did not manifest autism spectrum disorders (ASD) in comparison to typically developing controls. METHODS The study involved 23 males (mean age, 19.78 ± 6.56 years) who harboured a full mutation in the FMR1 gene. The control group comprised 19 healthy students (mean age 24.63 ± 1.89 years). Serum anti-neuronal antibodies were analyzed using Western blotting. RESULTS Serum anti-neuronal antibodies were present in 10/23 (43.48%) FXS males. CONCLUSION Serum anti-neuronal antibodies were found in a subgroup of FXS patients. Autistic symptoms in FXS may, in part, be caused by auto-immune factors. Further studies in larger patient and control groups are necessary to elucidate the aetiopathogenic role of anti-neuronal antibodies in FXS patients.
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Affiliation(s)
- Małgorzata Zofia Lisik
- Department of Molecular Biology and Genetics, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
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Affiliation(s)
- Hannah Wilson
- Future Medicine Ltd., Unitec House, 2 Albert Place, London, N3 1QB, UK
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