1
|
D’Adamo CR, Nelson JL, Miller SN, Rickert Hong M, Lambert E, Tallman Ruhm H. Reversal of Autism Symptoms among Dizygotic Twins through a Personalized Lifestyle and Environmental Modification Approach: A Case Report and Review of the Literature. J Pers Med 2024; 14:641. [PMID: 38929862 PMCID: PMC11205016 DOI: 10.3390/jpm14060641] [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: 04/30/2024] [Revised: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
The prevalence of autism has been increasing at an alarming rate. Even accounting for the expansion of autism spectrum disorder diagnostic (ASD) criteria throughout the 1990's, there has been an over 300% increase in ASD prevalence since the year 2000. The often debilitating personal, familial, and societal sequelae of autism are generally believed to be lifelong. However, there have been several encouraging case reports demonstrating the reversal of autism diagnoses, with a therapeutic focus on addressing the environmental and modifiable lifestyle factors believed to be largely underlying the condition. This case report describes the reversal of autism symptoms among dizygotic, female twin toddlers and provides a review of related literature describing associations between modifiable lifestyle factors, environmental exposures, and various clinical approaches to treating autism. The twins were diagnosed with Level 3 severity ASD "requiring very substantial support" at approximately 20 months of age following concerns of limited verbal and non-verbal communication, repetitive behaviors, rigidity around transitions, and extensive gastrointestinal symptoms, among other common symptoms. A parent-driven, multidisciplinary, therapeutic intervention involving a variety of licensed clinicians focusing primarily on addressing environmental and modifiable lifestyle factors was personalized to each of the twin's symptoms, labs, and other outcome measures. Dramatic improvements were noted within several months in most domains of the twins' symptoms, which manifested in reductions of Autism Treatment Evaluation Checklist (ATEC) scores from 76 to 32 in one of the twins and from 43 to 4 in the other twin. The improvement in symptoms and ATEC scores has remained relatively stable for six months at last assessment. While prospective studies are required, this case offers further encouraging evidence of ASD reversal through a personalized, multidisciplinary approach focusing predominantly on addressing modifiable environmental and lifestyle risk factors.
Collapse
Affiliation(s)
- Christopher R. D’Adamo
- Department of Family and Community Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
- Documenting Hope, Windsor, CT 06095, USA; (J.L.N.); (M.R.H.); (E.L.); (H.T.R.)
| | - Josephine L. Nelson
- Documenting Hope, Windsor, CT 06095, USA; (J.L.N.); (M.R.H.); (E.L.); (H.T.R.)
| | - Sara N. Miller
- Department of Family and Community Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Maria Rickert Hong
- Documenting Hope, Windsor, CT 06095, USA; (J.L.N.); (M.R.H.); (E.L.); (H.T.R.)
| | - Elizabeth Lambert
- Documenting Hope, Windsor, CT 06095, USA; (J.L.N.); (M.R.H.); (E.L.); (H.T.R.)
| | | |
Collapse
|
2
|
El-Ansary A, Al-Ayadhi L. Effects of Walnut and Pumpkin on Selective Neurophenotypes of Autism Spectrum Disorders: A Case Study. Nutrients 2023; 15:4564. [PMID: 37960217 PMCID: PMC10647375 DOI: 10.3390/nu15214564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Special diets or nutritional supplements are regularly given to treat children with autism spectrum disorder (ASD). The increased consumption of particular foods has been demonstrated in numerous trials to lessen autism-related symptoms and comorbidities. A case study on a boy with moderate autism who significantly improved after three years of following a healthy diet consisting of pumpkin and walnuts was examined in this review in connection to a few different neurophenotypes of ASD. We are able to suggest that a diet high in pumpkin and walnuts was useful in improving the clinical presentation of the ASD case evaluated by reducing oxidative stress, neuroinflammation, glutamate excitotoxicity, mitochondrial dysfunction, and altered gut microbiota, all of which are etiological variables. Using illustrated figures, a full description of the ways by which a diet high in pumpkin and nuts could assist the included case is offered.
Collapse
Affiliation(s)
- Afaf El-Ansary
- Autism Center, Lotus Holistic Alternative Medical Center, Abu Dhabi P.O. Box 110281, United Arab Emirates
- Autism Research and Treatment Center, P.O. Box 2925, Riyadh 11461, Saudi Arabia;
| | - Laila Al-Ayadhi
- Autism Research and Treatment Center, P.O. Box 2925, Riyadh 11461, Saudi Arabia;
- Department of Physiology, Faculty of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia
| |
Collapse
|
3
|
Anastasescu CM, Gheorman V, Popescu F, Stoicănescu EC, Gheorman V, Riza AL, Badea O, Streață I, Militaru F, Udriștoiu I. Serum Amino Acid Profiling in Children with Autistic Spectrum Disorder: Insights from a Single-Center Study in Southern Romania. Healthcare (Basel) 2023; 11:2487. [PMID: 37761684 PMCID: PMC10530373 DOI: 10.3390/healthcare11182487] [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: 08/04/2023] [Revised: 08/29/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
The objective of this study was to analyze the serum amino acid profile in children diagnosed with autistic spectrum disorder (ASD) in southern Romania. The analysis aimed to provide insights into the underlying metabolic dysregulations associated with ASD. ASD is a neurodevelopmental disorder characterized by impaired social interaction, communication deficits, and restricted repetitive behaviors. Although the exact cause of ASD is largely unknown, recent evidence suggests that abnormalities in amino acid metabolism may contribute to its pathogenesis. Therefore, studying the amino acid profile in children with ASD could offer valuable information for understanding the metabolic disturbances associated with this complex disorder. This single-center study examined serum samples from children diagnosed with ASD, utilizing advanced analytical techniques to quantify the levels of different amino acids, amino acid derivatives, and amino acid-like substances. The results showed a lower level of taurine and a higher level of asparagine and leucine in the ASD group versus the control group. In the ASD group, we observed significant differences in tryptophan and alpha-aminobutyric acid levels based on age, with higher tryptophan levels in children older than 7 years when compared to children younger than 7 years; however, no significant correlations were found with the ASD group older than 7 years old. Additionally, younger children with ASD exhibited higher levels of alpha-aminobutyric acid than older children with ASD. The findings from this study contribute to the growing body of knowledge on the metabolic aspects of ASD, highlighting potential biomarkers and therapeutic targets for improving the management and treatment of ASD in children.
Collapse
Affiliation(s)
- Cătălina Mihaela Anastasescu
- Hospital of Neuropsychiatry Craiova, Children Mental Health Center, Pharmacology Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Veronica Gheorman
- Department of Cardiology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Florica Popescu
- Pharmacology Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Eugen-Cristi Stoicănescu
- Pediatry Department, Emergency Clinical Hospital Râmnicu Vâlcea, 200300 Râmnicu Vâlcea, Romania;
| | - Victor Gheorman
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (V.G.); (F.M.); (I.U.)
| | - Anca-Lelia Riza
- Human Genomics Laboratory, University of Medicine and Pharmacy, 050474 Craiova, Romania; (A.-L.R.); (I.S.)
| | - Oana Badea
- Department of Modern Languages, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Ioana Streață
- Human Genomics Laboratory, University of Medicine and Pharmacy, 050474 Craiova, Romania; (A.-L.R.); (I.S.)
| | - Felicia Militaru
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (V.G.); (F.M.); (I.U.)
| | - Ion Udriștoiu
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (V.G.); (F.M.); (I.U.)
| |
Collapse
|
4
|
Duque-Ossa LC, Volin Bolok-Russek M, Reyes-Retana JA. Glycine Active Sites Analysis from a Geometrical Perspective: A DFT Study. J Phys Chem B 2023. [PMID: 37267585 DOI: 10.1021/acs.jpcb.3c00666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Density functional theory calculations of 2D materials and biological molecules have been used to evaluate disease progression through biosensing. In this case, a glycine molecule in normal and zwitterionic form was evaluated on its interaction with zigzag single-walled carbon nanotubes, graphene sheets, and molybdenum disulfide sheets. Glycine was rotated in order to interact with the materials at different active sites. Binding and cohesion energies, band gaps, and charge transfer for the systems were obtained. Binding and cohesion for the interaction between normal glycine and 2D materials result in better outcomes with the presence of a dangling bond using van der Waals correction, giving the more stable results for glycine and carbon nanotubes in the plane ZY and glycine with graphene in the plane YX, respectively. For zwitterion glycine, binding and cohesion energies are better without a dangling bond supported on graphene in the plane ZX. Charge transfer results for normal glycine show a better interaction for glycine and molybdenum disulfide in the plane ZY, while for zwitterion glycine, higher charge transfer is reported in graphene (ZX). Furthermore, the density of states of normal glycine exhibits an improvement in the band gap for carbon related materials (more semiconductor behavior) and a slight decrease in semiconductor behavior for molybdenum disulfide.
Collapse
Affiliation(s)
- L C Duque-Ossa
- Tecnologico de Monterrey, Department of Mechanics and Advanced Materials, Santa fe, Ciudad de Mexico 01389, Mexico
| | - Mark Volin Bolok-Russek
- Universidad Iberoamericana, Department of Physics and Mathematics, Lomas de Santa Fe, Ciudad de Mexico 01219, Mexico
| | - José Angel Reyes-Retana
- Tecnologico de Monterrey, Department of Mechanics and Advanced Materials, Santa fe, Ciudad de Mexico 01389, Mexico
| |
Collapse
|
5
|
Gołyński M, Metyk M, Ciszewska J, Szczepanik MP, Fitch G, Bęczkowski PM. Homocysteine-Potential Novel Diagnostic Indicator of Health and Disease in Horses. Animals (Basel) 2023; 13:ani13081311. [PMID: 37106874 PMCID: PMC10135347 DOI: 10.3390/ani13081311] [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: 01/25/2023] [Revised: 03/12/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Homocysteine is an endogenous, non-protein sulfuric amino acid, an intermediate metabolite formed by the methionine transmethylation reaction. Its elevated serum concentration in humans, hyperhomocysteinemia, is a sensitive indicator and a risk factor for coagulation disorders, cardiovascular diseases and dementia. However, the role of homocysteine in veterinary species has not been unequivocally established. Although some research has been conducted in dogs, cats, cattle and pigs, relatively few studies on homocysteine have been conducted in horses. So far, it has been established in this species that homocysteine has an atherogenic effect, plays a role in early embryo mortality and is responsible for the induction of oxidative stress. These preliminary findings support establishing a reference range in a normal population of horses, including horses in training and merit further investigations into the role of this amino acid in health and disease in this species.
Collapse
Affiliation(s)
- Marcin Gołyński
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Michał Metyk
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Jagoda Ciszewska
- Sub-Department of Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-033 Lublin, Poland
| | - Marcin Paweł Szczepanik
- Sub-Department of Diagnostics and Veterinary Dermatology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-033 Lublin, Poland
| | - Gareth Fitch
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| | - Paweł Marek Bęczkowski
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| |
Collapse
|
6
|
Galineau L, Arlicot N, Dupont AC, Briend F, Houy-Durand E, Tauber C, Gomot M, Gissot V, Barantin L, Lefevre A, Vercouillie J, Roussel C, Roux S, Nadal L, Mavel S, Laumonnier F, Belzung C, Chalon S, Emond P, Santiago-Ribeiro MJ, Bonnet-Brilhault F. Glutamatergic synapse in autism: a complex story for a complex disorder. Mol Psychiatry 2023; 28:801-809. [PMID: 36434055 DOI: 10.1038/s41380-022-01860-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/12/2022] [Accepted: 10/28/2022] [Indexed: 11/27/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder whose pathophysiological mechanisms are still unclear. Hypotheses suggest a role for glutamate dysfunctions in ASD development, but clinical studies investigating brain and peripheral glutamate levels showed heterogenous results leading to hypo- and hyper-glutamatergic hypotheses of ASD. Recently, studies proposed the implication of elevated mGluR5 densities in brain areas in the pathophysiology of ASD. Thus, our objective was to characterize glutamate dysfunctions in adult subjects with ASD by quantifying (1) glutamate levels in the cingulate cortex and periphery using proton magnetic resonance spectroscopy and metabolomics, and (2) mGluR5 brain density in this population and in a validated animal model of ASD (prenatal exposure to valproate) at developmental stages corresponding to childhood and adolescence in humans using positron emission tomography. No modifications in cingulate Glu levels were observed between individuals with ASD and controls further supporting the difficulty to evaluate modifications in excitatory transmission using spectroscopy in this population, and the complexity of its glutamate-related changes. Our imaging results showed an overall increased density in mGluR5 in adults with ASD, that was only observed mostly subcortically in adolescent male rats prenatally exposed to valproic acid, and not detected in the stage corresponding to childhood in the same animals. This suggest that clinical changes in mGluR5 density could reflect the adaptation of the glutamatergic dysfunctions occurring earlier rather than being key to the pathophysiology of ASD.
Collapse
Affiliation(s)
| | - Nicolas Arlicot
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Unité de Radiopharmacie, CHRU de Tours, Tours, France
| | - Anne-Claire Dupont
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Unité de Radiopharmacie, CHRU de Tours, Tours, France.,Service de Médecine Nucléaire, CHRU de Tours, Tours, France
| | - Frederic Briend
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Excellence Center for Autism and Neurodevelopmental Disorders, CHRU de Tours, Tours, France
| | - Emmanuelle Houy-Durand
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Excellence Center for Autism and Neurodevelopmental Disorders, CHRU de Tours, Tours, France
| | - Clovis Tauber
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | - Marie Gomot
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Excellence Center for Autism and Neurodevelopmental Disorders, CHRU de Tours, Tours, France
| | | | | | - Antoine Lefevre
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | | | | | - Sylvie Roux
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Excellence Center for Autism and Neurodevelopmental Disorders, CHRU de Tours, Tours, France
| | - Lydie Nadal
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | - Sylvie Mavel
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | | | | | - Sylvie Chalon
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | - Patrick Emond
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | - Maria-Joao Santiago-Ribeiro
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France.,Service de Médecine Nucléaire, CHRU de Tours, Tours, France
| | - Frédérique Bonnet-Brilhault
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France. .,Excellence Center for Autism and Neurodevelopmental Disorders, CHRU de Tours, Tours, France.
| |
Collapse
|
7
|
Zhang Y, Guo M, Zhang H, Wang Y, Li R, Liu Z, Zheng H, You C. Lactiplantibacillus plantarum ST-III-fermented milk improves autistic-like behaviors in valproic acid-induced autism spectrum disorder mice by altering gut microbiota. Front Nutr 2022; 9:1005308. [PMID: 36505260 PMCID: PMC9729765 DOI: 10.3389/fnut.2022.1005308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/03/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Autism spectrum disorder (ASD) is a serious neurodevelopmental disorder with a rising incidence. More and more studies have shown that abnormal microbiota composition may aggravate the behavioral symptoms and biological signs of ASD, and interventions of probiotics and diet have emerged as a potential improvement measure. Methods Lactiplantibacillus plantarum ST-III-fermented milk was applied as an oral intervention in a valproic acid (VPA)-induced ASD mice model, and the effect of probiotic intake on autistic-related behaviors and gut microbiota composition was evaluated by behavioral tests and 16S rRNA gene sequencing. Results Gender specificity was shown in VPA-induced behavioral abnormalities in a mouse model, and L. plantarum ST-III-fermented milk was effective in ameliorating the impaired social interaction in male ASD mouse models, but not for the anxiety behavior exhibited by female ASD mouse models. Meanwhile, dietary changes were found to be the main cause of the altered gut microbiota in mice, and additional intake of L. plantarum ST-III-fermented milk seemed to improve autistic-like behaviors in male ASD mouse models by modulating specific gut microbes. Discussion These findings suggest that L. plantarum ST-III-fermented milk may play a beneficial role in improving the behavioral symptoms of ASD and is expected to be one of the candidate functional foods for ASD.
Collapse
Affiliation(s)
- Yilin Zhang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Min Guo
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Hongfa Zhang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Yuezhu Wang
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China,Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Ruiying Li
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China,*Correspondence: Zhenmin Liu,
| | - Huajun Zheng
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China,Huajun Zheng,
| | - Chunping You
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China,Chunping You,
| |
Collapse
|
8
|
Antibiotic Treatment during Pregnancy Alters Offspring Gut Microbiota in a Sex-Dependent Manner. Biomedicines 2022; 10:biomedicines10051042. [PMID: 35625778 PMCID: PMC9138679 DOI: 10.3390/biomedicines10051042] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
This study investigated the effect of antibiotics administered to pregnant dams on offspring gut microbiome composition and metabolic capabilities, and how these changes in the microbiota may influence their immune responses in both the periphery and the brain. We orally administered a broad-spectrum antibiotic (ABX) cocktail consisting of vancomycin 0.5 mg/mL, ampicillin 1 mg/mL, and neomycin 1 mg/mL to pregnant dams during late gestation through birth. Bacterial DNA was extracted from offspring fecal samples, and 16S ribosomal RNA gene was sequenced by Illumina, followed by analysis of gut microbiota composition and PICRUSt prediction. Serum and brain tissue cytokine levels were analyzed by Luminex. Our results indicate that the ABX-cocktail led to significant diversity and taxonomic changes to the offspring's gut microbiome. In addition, the predicted KEGG and MetaCyc pathways were significantly altered in the offspring. Finally, there were decreased innate inflammatory cytokines and chemokines and interleukin (IL)-17 seen in the brains of ABX-cocktail offspring in response to lipopolysaccharide (LPS) immune challenge. Our results suggest that maternal ABX can produce long-lasting effects on the gut microbiome and neuroimmune responses of offspring. These findings support the role of the early microbiome in the development of offspring gastrointestinal and immune systems.
Collapse
|
9
|
Wu H, Zhao G, Liu S, Zhang Q, Wang P, Cao Y, Wu L. Supplementation with Selenium Attenuates Autism-Like Behaviors and Improves Oxidative Stress, Inflammation and Related Gene Expression in an Autism Disease Model. J Nutr Biochem 2022; 107:109034. [DOI: 10.1016/j.jnutbio.2022.109034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/05/2022] [Accepted: 03/20/2022] [Indexed: 12/23/2022]
|
10
|
Montanari M, Martella G, Bonsi P, Meringolo M. Autism Spectrum Disorder: Focus on Glutamatergic Neurotransmission. Int J Mol Sci 2022; 23:ijms23073861. [PMID: 35409220 PMCID: PMC8998955 DOI: 10.3390/ijms23073861] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/24/2022] [Accepted: 03/29/2022] [Indexed: 12/16/2022] Open
Abstract
Disturbances in the glutamatergic system have been increasingly documented in several neuropsychiatric disorders, including autism spectrum disorder (ASD). Glutamate-centered theories of ASD are based on evidence from patient samples and postmortem studies, as well as from studies documenting abnormalities in glutamatergic gene expression and metabolic pathways, including changes in the gut microbiota glutamate metabolism in patients with ASD. In addition, preclinical studies on animal models have demonstrated glutamatergic neurotransmission deficits and altered expression of glutamate synaptic proteins. At present, there are no approved glutamatergic drugs for ASD, but several ongoing clinical trials are currently focusing on evaluating in autistic patients glutamatergic pharmaceuticals already approved for other conditions. In this review, we provide an overview of the literature concerning the role of glutamatergic neurotransmission in the pathophysiology of ASD and as a potential target for novel treatments.
Collapse
Affiliation(s)
- Martina Montanari
- Laboratory of Neurophysiology and Plasticity, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (M.M.); (G.M.)
- Department of Systems Neuroscience, University Tor Vergata, 00133 Rome, Italy
| | - Giuseppina Martella
- Laboratory of Neurophysiology and Plasticity, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (M.M.); (G.M.)
| | - Paola Bonsi
- Laboratory of Neurophysiology and Plasticity, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (M.M.); (G.M.)
- Correspondence: (P.B.); (M.M.)
| | - Maria Meringolo
- Laboratory of Neurophysiology and Plasticity, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy; (M.M.); (G.M.)
- Correspondence: (P.B.); (M.M.)
| |
Collapse
|
11
|
Alteration of the Intestinal Permeability Are Reflected by Changes in the Urine Metabolome of Young Autistic Children: Preliminary Results. Metabolites 2022; 12:metabo12020104. [PMID: 35208179 PMCID: PMC8875518 DOI: 10.3390/metabo12020104] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 12/11/2022] Open
Abstract
Several metabolomics-based studies have provided evidence that autistic subjects might share metabolic abnormalities with gut microbiota dysbiosis and alterations in gut mucosal permeability. Our aims were to explore the most relevant metabolic perturbations in a group of autistic children, compared with their healthy siblings, and to investigate whether the increased intestinal permeability may be mirrored by specific metabolic perturbations. We enrolled 13 autistic children and 14 unaffected siblings aged 2–12 years; the evaluation of the intestinal permeability was estimated by the lactulose:mannitol test. The urine metabolome was investigated by proton nuclear magnetic resonance (1H-NMR) spectroscopy. The lactulose:mannitol test unveiled two autistic children with altered intestinal permeability. Nine metabolites significantly discriminated the urine metabolome of autistic children from that of their unaffected siblings; however, in the autistic children with increased permeability, four additional metabolites—namely, fucose, phenylacetylglycine, nicotinurate, and 1-methyl-nicotinamide, strongly discriminated their urine metabolome from that of the remaining autistic children. Our preliminary data suggest the presence of a specific urine metabolic profile associated with the increase in intestinal permeability.
Collapse
|
12
|
Balandeh E, Karimian M, Behjati M, Mohammadi AH. Serum Vitamins and Homocysteine Levels in Obsessive-Compulsive Disorder: A Systematic Review and Meta-Analysis. Neuropsychobiology 2022; 80:502-515. [PMID: 33744893 DOI: 10.1159/000514075] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 12/21/2020] [Indexed: 11/19/2022]
Abstract
Vitamin and homocysteine (Hcy) alternations have been associated with psychiatric disorders. The aim of this meta-analysis was to assess the association of serum vitamin and Hcy levels with obsessive-compulsive disorder (OCD). Following PRISMA protocol, we used the databases including Scopus, PubMed, Google Scholar, and Web of Science with no time restriction. Data were pooled using a random-effects model and/or fixed-effects model to estimate the standard mean difference (SMD) for evaluation of the strength of association analyses. Our data showed a significant reduction in vitamin B12 (SMD = -0.58, 95% CI = -1.08 to -0.08, p = 0.02, I2 = 65%; pheterogeneity = 0.06), vitamin E (SMD = -0.89, 95% CI = -1.23 to -0.56, p < 0.00001, I2 = 23%; pheterogeneity = 0.26), and vitamin C (SMD = -1.40, 95% CI = -2.44 to -0.36, p = 0.008, I2 = 92%; pheterogeneity < 0.0001) in OCD patients. In addition, the findings showed significantly higher levels of Hcy (SMD = 1.11, 95% CI = [0.48, 1.75], p = 0.0006, I2 = 73%; ph = 0.02) in patients compared to controls. Also, our data showed that vitamin B9 and D levels are not associated with OCD (vitamin B9: SMD = -0.23, 95% CI = -1.01 to 0.55, p = 0.56, I2 = 88%; pheterogeneity < 0.0001; vitamin D: SMD = -0.63, 95% CI = -1.41 to 0.15, p = 0.11, I2 = 88%; pheterogeneity = 0.0002). Our findings support significant impacts of Hcy and vitamin B12, E, and C levels in OCD pathogenesis. This will be important for prevention and treatment of OCD. However, further studies are recommended to elucidate more accurate conclusions.
Collapse
Affiliation(s)
- Ebrahim Balandeh
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Karimian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Mohaddeseh Behjati
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mohammadi
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran, .,Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran,
| |
Collapse
|
13
|
Bjørklund G, Doşa MD, Maes M, Dadar M, Frye RE, Peana M, Chirumbolo S. The impact of glutathione metabolism in autism spectrum disorder. Pharmacol Res 2021; 166:105437. [PMID: 33493659 DOI: 10.1016/j.phrs.2021.105437] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 12/31/2020] [Accepted: 01/12/2021] [Indexed: 12/14/2022]
Abstract
This paper reviews the potential role of glutathione (GSH) in autism spectrum disorder (ASD). GSH plays a key role in the detoxification of xenobiotics and maintenance of balance in intracellular redox pathways. Recent data showed that imbalances in the GSH redox system are an important factor in the pathophysiology of ASD. Furthermore, ASD is accompanied by decreased concentrations of reduced GSH in part caused by oxidation of GSH into glutathione disulfide (GSSG). GSSG can react with protein sulfhydryl (SH) groups, thereby causing proteotoxic stress and other abnormalities in SH-containing enzymes in the brain and blood. Moreover, alterations in the GSH metabolism via its effects on redox-independent mechanisms are other processes associated with the pathophysiology of ASD. GSH-related regulation of glutamate receptors such as the N-methyl-D-aspartate receptor can contribute to glutamate excitotoxicity. Synergistic and antagonistic interactions between glutamate and GSH can result in neuronal dysfunction. These interactions can involve transcription factors of the immune pathway, such as activator protein 1 and nuclear factor (NF)-κB, thereby interacting with neuroinflammatory mechanisms, ultimately leading to neuronal damage. Neuronal apoptosis and mitochondrial dysfunction are recently outlined as significant factors linking GSH impairments with the pathophysiology of ASD. Moreover, GSH regulates the methylation of DNA and modulates epigenetics. Existing data support a protective role of the GSH system in ASD development. Future research should focus on the effects of GSH redox signaling in ASD and should explore new therapeutic approaches by targeting the GSH system.
Collapse
Affiliation(s)
- Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Toften 24, 8610, Mo i Rana, Norway.
| | - Monica Daniela Doşa
- Department of Pharmacology, Faculty of Medicine, Ovidius University of Constanta, Campus, 900470, Constanta, Romania.
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Impact Research Center, Deakin University, Geelong, Australia
| | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Richard E Frye
- Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ, USA; Department of Child Health, University of Arizona College of Medicine, Phoenix, AZ, USA
| | | | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; CONEM Scientific Secretary, Verona, Italy
| |
Collapse
|
14
|
Involvements of Hyperhomocysteinemia in Neurological Disorders. Metabolites 2021; 11:metabo11010037. [PMID: 33419180 PMCID: PMC7825518 DOI: 10.3390/metabo11010037] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/27/2020] [Accepted: 01/01/2021] [Indexed: 12/14/2022] Open
Abstract
Homocysteine (HCY), a physiological amino acid formed when proteins break down, leads to a pathological condition called hyperhomocysteinemia (HHCY), when it is over a definite limit. It is well known that an increase in HCY levels in blood, can contribute to arterial damage and several cardiovascular disease, but the knowledge about the relationship between HCY and brain disorders is very poor. Recent studies demonstrated that an alteration in HCY metabolism or a deficiency in folate or vitamin B12 can cause altered methylation and/or redox potentials, that leads to a modification on calcium influx in cells, or into an accumulation in amyloid and/or tau protein involving a cascade of events that culminate in apoptosis, and, in the worst conditions, neuronal death. The present review will thus summarize how much is known about the possible role of HHCY in neurodegenerative disease.
Collapse
|
15
|
Bjørklund G, Tinkov AA, Hosnedlová B, Kizek R, Ajsuvakova OP, Chirumbolo S, Skalnaya MG, Peana M, Dadar M, El-Ansary A, Qasem H, Adams JB, Aaseth J, Skalny AV. The role of glutathione redox imbalance in autism spectrum disorder: A review. Free Radic Biol Med 2020; 160:149-162. [PMID: 32745763 DOI: 10.1016/j.freeradbiomed.2020.07.017] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/02/2020] [Accepted: 07/13/2020] [Indexed: 12/22/2022]
Abstract
The role of glutathione in autism spectrum disorder (ASD) is emerging as a major topic, due to its role in the maintenance of the intracellular redox balance. Several studies have implicated glutathione redox imbalance as a leading factor in ASD, and both ASD and many other neurodevelopmental disorders involve low levels of reduced glutathione (GSH), high levels of oxidized glutathione (GSSG), and abnormalities in the expressions of glutathione-related enzymes in the blood or brain. Glutathione metabolism, through its impact on redox environment or redox-independent mechanisms, interferes with multiple mechanisms involved in ASD pathogenesis. Glutathione-mediated regulation of glutamate receptors [e.g., N-methyl-d-aspartate (NMDA) receptor], as well as the role of glutamate as a substrate for glutathione synthesis, may be involved in the regulation of glutamate excitotoxicity. However, the interaction between glutathione and glutamate in the pathogenesis of brain diseases may vary from synergism to antagonism. Modulation of glutathione is also associated with regulation of redox-sensitive transcription factors nuclear factor kappa B (NF-κB) and activator protein 1 (AP-1) and downstream signaling (proinflammatory cytokines and inducible enzymes), thus providing a significant impact on neuroinflammation. Mitochondrial dysfunction, as well as neuronal apoptosis, may also provide a significant link between glutathione metabolism and ASD. Furthermore, it has been recently highlighted that glutathione can affect and modulate DNA methylation and epigenetics. Review analysis including research studies meeting the required criteria for analysis showed statistically significant differences between the plasma GSH and GSSG levels as well as GSH:GSSG ratio in autistic patients compared with healthy individuals (P = 0.0145, P = 0.0150 and P = 0.0202, respectively). Therefore, the existing data provide a strong background on the role of the glutathione system in ASD pathogenesis. Future research is necessary to investigate the role of glutathione redox signaling in ASD, which could potentially also lead to promising therapeutics.
Collapse
Affiliation(s)
- Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Mo I Rana, Norway.
| | - Alexey A Tinkov
- IM Sechenov First Moscow State Medical University, Moscow, Russia; Yaroslavl State University, Yaroslavl, Russia; Federal Research Centre of Biological Systems, Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
| | - Božena Hosnedlová
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic; CONEM Metallomics Nanomedicine Research Group (CMNRG), Brno, Czech Republic
| | - Rene Kizek
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic; CONEM Metallomics Nanomedicine Research Group (CMNRG), Brno, Czech Republic; Faculty of Pharmacy with Division of Laboratory Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Olga P Ajsuvakova
- IM Sechenov First Moscow State Medical University, Moscow, Russia; Yaroslavl State University, Yaroslavl, Russia; Federal Research Centre of Biological Systems, Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
| | - Salvatore Chirumbolo
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; CONEM Scientific Secretary, Verona, Italy
| | - Margarita G Skalnaya
- IM Sechenov First Moscow State Medical University, Moscow, Russia; Federal Research Centre of Biological Systems, Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
| | | | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Afaf El-Ansary
- Medicinal Chemistry Department, King Saud University, Riyadh, Saudi Arabia; Autism Research and Treatment Center, Riyadh, Saudi Arabia; CONEM Saudi Autism Research Group, King Saud University, Riyadh, Saudi Arabia
| | - Hanan Qasem
- Autism Research and Treatment Center, Riyadh, Saudi Arabia; CONEM Saudi Autism Research Group, King Saud University, Riyadh, Saudi Arabia
| | - James B Adams
- School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, USA
| | - Jan Aaseth
- Research Department, Innlandet Hospital Trust, Brumunddal, Norway
| | - Anatoly V Skalny
- IM Sechenov First Moscow State Medical University, Moscow, Russia; Federal Research Centre of Biological Systems, Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
| |
Collapse
|
16
|
Analyzing the Potential Biological Determinants of Autism Spectrum Disorder: From Neuroinflammation to the Kynurenine Pathway. Brain Sci 2020; 10:brainsci10090631. [PMID: 32932826 PMCID: PMC7563403 DOI: 10.3390/brainsci10090631] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/31/2020] [Accepted: 09/10/2020] [Indexed: 12/22/2022] Open
Abstract
Autism Spectrum Disorder (ASD) etiopathogenesis is still unclear and no effective preventive and treatment measures have been identified. Research has focused on the potential role of neuroinflammation and the Kynurenine pathway; here we review the nature of these interactions. Pre-natal or neonatal infections would induce microglial activation, with secondary consequences on behavior, cognition and neurotransmitter networks. Peripherally, higher levels of pro-inflammatory cytokines and anti-brain antibodies have been identified. Increased frequency of autoimmune diseases, allergies, and recurring infections have been demonstrated both in autistic patients and in their relatives. Genetic studies have also identified some important polymorphisms in chromosome loci related to the human leukocyte antigen (HLA) system. The persistence of immune-inflammatory deregulation would lead to mitochondrial dysfunction and oxidative stress, creating a self-sustaining cytotoxic loop. Chronic inflammation activates the Kynurenine pathway with an increase in neurotoxic metabolites and excitotoxicity, causing long-term changes in the glutamatergic system, trophic support and synaptic function. Furthermore, overactivation of the Kynurenine branch induces depletion of melatonin and serotonin, worsening ASD symptoms. Thus, in genetically predisposed subjects, aberrant neurodevelopment may derive from a complex interplay between inflammatory processes, mitochondrial dysfunction, oxidative stress and Kynurenine pathway overexpression. To validate this hypothesis a new translational research approach is necessary.
Collapse
|
17
|
Liu S, Wang X, Zhang R, Song M, Zhang N, Li W, Wang Y, Xu Y, Zhang L. Amino acid, fatty acid, and carbohydrate metabolomic profiles with ginsenoside-induced insecticidal efficacy against Ostrinia furnacalis (Guenee). J Ginseng Res 2020; 44:544-551. [PMID: 32617034 PMCID: PMC7322809 DOI: 10.1016/j.jgr.2019.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 03/14/2019] [Accepted: 04/23/2019] [Indexed: 01/22/2023] Open
Abstract
Background Previous studies have shown the insecticidal efficacy of ginsenosides. In the present study, we aimed to investigate the metabolic mechanism related to the inhibitory effect of panaxadiol saponins (PDSs) against the Asian corn borer Ostrinia furnacalis (Guenee). Methods Third instar larvae of O. furnacalis were fed normal diets with different concentrations of PDSs for 4 days. The consumption index, relative growth rate, approximate digestibility, and conversion of ingested and digested food were recorded. A targeted gas chromatography–mass spectrometry assay was performed to detect the profiles of amino acids, fatty acids, and carbohydrates in larvae of O. furnacalis. In addition, the activity of detoxification-related enzymes was determined. Results and Conclusions PDSs decreased the consumption index, relative growth rate, approximate digestibility, and conversion of ingested and digested food in the 3rd instar larvae of O. furnacalis in a dose-dependent manner. PDSs decreased 15 free amino acids, 16 free fatty acids, and 5 carbohydrates and increased the levels of palmitoleic acid, palmitic acid, and 9-octadecenoic acid in the 3rd instar larvae. The activity of detoxification-related enzymes, such as acetylcholinesterase, glutathione S-transferase, cytochrome P450, carboxylesterase, trehalase, acid phosphatase, and alkaline phosphatase, was reduced in a dose-dependent manner in the 3rd instar larvae exposed to PDSs. These data confirmed the inhibitory effect of PDSs against growth, food utilization, and detoxification in the 3rd instar larvae of O. furnacalis and the potential for using PDSs as an efficient tool for insect pest management for O. furnacalis larvae. Panaxadiol saponins (PDSs) reduced larval growth and food consumption and utilization in Ostrinia furnacalis. PDSs reduced the levels of free amino acids, fatty acids, and sugar in larvae. PDSs inhibited the activity of acetylcholinesterase, glutathione S-transferase, cytochrome P450, carboxylesterase, trehalase, acid phosphatase, and alkaline phosphatase. All the inhibitory effects of PDSs against O. furnacalis larvae were dose dependent.
Collapse
Affiliation(s)
- Shuangli Liu
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
| | - Xiaohui Wang
- Research Center of Agricultural Environment and Resources, Jilin Academy of Agricultural Sciences, China
| | - Rui Zhang
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
| | - Mingjie Song
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
| | - Nanqi Zhang
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
| | - Wanying Li
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
| | - Yingping Wang
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
| | - Yonghua Xu
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
- Corresponding author. 2888 Xincheng Street, Changchun City, Jilin Province, China.
| | - Lianxue Zhang
- National & Local Joint Engineering Research Center for Ginseng Breeding and Application (Jilin), Jilin Agricultural University, China
- Corresponding author. 2888 Xincheng Street, Changchun City, Jilin Province, China.
| |
Collapse
|
18
|
Salagre E, Vizuete A, Leite M, Brownstein D, McGuinness A, Jacka F, Dodd S, Stubbs B, Köhler C, Vieta E, Carvalho A, Berk M, Fernandes B. Homocysteine as a peripheral biomarker in bipolar disorder: A meta-analysis. Eur Psychiatry 2020; 43:81-91. [DOI: 10.1016/j.eurpsy.2017.02.482] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 12/13/2022] Open
Abstract
AbstractBackground:Bipolar disorder (BD) is a psychiatric disorder with an uncertain aetiology. Recently, special attention has been given to homocysteine (Hcy), as it has been suggested that alterations in 1-carbon metabolism might be implicated in diverse psychiatric disorders. However, there is uncertainty regarding possible alterations in peripheral Hcy levels in BD.Methods:This study comprises a meta-analysis comparing serum and plasma Hcy levels in persons with BD and healthy controls. We conducted a systematic search for all eligible English and non-English peer-reviewed articles.Results:Nine cross-sectional studies were included in the meta-analyses, providing data on 1547 participants. Random-effects meta-analysis showed that serum and plasma levels of Hcy were increased in subjects with BD in either mania or euthymia when compared to healthy controls, with a large effect size in the mania group (g= 0.98, 95% CI: 0.8–1.17,P< 0.001,n= 495) and a small effect in the euthymia group (g= 0.3, 95% CI: 0.11–0.48,P= 0.002,n= 1052).Conclusions:Our meta-analysis provides evidence that Hcy levels are elevated in persons with BD during mania and euthymia. Peripheral Hcy could be considered as a potential biomarker in BD, both of trait (since it is increased in euthymia), and also of state (since its increase is more accentuated in mania). Longitudinal studies are needed to clarify the relationship between bipolar disorder and Hcy, as well as the usefulness of peripheral Hcy as both a trait and state biomarker in BD.
Collapse
|
19
|
Higher Levels of Low Molecular Weight Sulfur Compounds and Homocysteine Thiolactone in the Urine of Autistic Children. Molecules 2020; 25:molecules25040973. [PMID: 32098164 PMCID: PMC7070266 DOI: 10.3390/molecules25040973] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 12/23/2022] Open
Abstract
In this study, the levels of concentration of homocysteine thiolactone (HTL), cysteine (Cys), and cysteinylglycine (CysGly) in the urine of autistic and non-autistic children were investigated and compared. HTL has never been analyzed in autistic children. The levels of low molecular weight sulfur compounds in the urine of both groups were determined by validated methods based on high-performance liquid chromatography with spectrofluorometric and diode-array detectors. The statistical data show a significant difference between the examined groups. Children with autism were characterized by a significantly higher level of HTL (p = 5.86 × 10−8), Cys (p = 1.49 × 10−10) and CysGly (p = 1.06 × 10−8) in urine compared with the control group. A difference in the p-value of <0.05 is statistically significant. Higher levels of HTL, Cys, and CysGly in the urine of 41 children with autism, aged 3 to 17, were observed. The obtained results may indicate disturbances in the metabolism of methionine, Cys, and glutathione in some autistic patients. These preliminary results suggest that further research with more rigorous designs and a large number of subjects is needed.
Collapse
|
20
|
Gruenbaum BF, Kutz R, Zlotnik A, Boyko M. Blood glutamate scavenging as a novel glutamate-based therapeutic approach for post-stroke depression. Ther Adv Psychopharmacol 2020; 10:2045125320903951. [PMID: 32110376 PMCID: PMC7026819 DOI: 10.1177/2045125320903951] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 12/31/2019] [Indexed: 12/16/2022] Open
Abstract
Post-stroke depression (PSD) is a major complication of stroke that significantly impacts functional recovery and quality of life. While the exact mechanism of PSD is unknown, recent attention has focused on the association of the glutamatergic system in its etiology and treatment. Minimizing secondary brain damage and neuropsychiatric consequences associated with excess glutamate concentrations is a vital part of stroke management. The blood glutamate scavengers, oxaloacetate and pyruvate, degrade glutamate in the blood to its inactive metabolite, 2-ketoglutarate, by the coenzymes glutamate-oxaloacetate transaminase (GOT) and glutamate-pyruvate transaminase (GPT), respectively. This reduction in blood glutamate concentrations leads to a subsequent shift of glutamate down its concentration gradient from the blood to the brain, thereby decreasing brain glutamate levels. Although there are not yet any human trials that support blood glutamate scavengers for clinical use, there is increasing evidence from animal research of their efficacy as a promising new therapeutic approach for PSD. In this review, we present recent evidence in the literature of the potential therapeutic benefits of blood glutamate scavengers for reducing PSD and other related neuropsychiatric conditions. The evidence reviewed here should be useful in guiding future clinical trials.
Collapse
Affiliation(s)
- Benjamin F Gruenbaum
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Ruslan Kutz
- Division of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Alexander Zlotnik
- Division of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Matthew Boyko
- Division of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84101, Israel
| |
Collapse
|
21
|
Park E, Elidrissi A, Schuller-Levis G, Chadman KK. Taurine Partially Improves Abnormal Anxiety in Taurine-Deficient Mice. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1155:905-921. [PMID: 31468456 DOI: 10.1007/978-981-13-8023-5_76] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Taurine is abundant in various tissues including the brain, muscle, heart, spleen, liver and kidney with various physiological functions. Since taurine is produced by cysteine sulfinic acid decarboxylase (CSAD) in the liver and kidney, taurine-deficient mice without CSAD have been investigated for abnormal physiological functions such as retinal development, immune, pancreatic and liver function. In this study, the behavioral effects and abnormal brain development caused by low taurine in the developing brain were examined. In neonatal brains of homozygous CSAD knockout mice (HO), taurine was reduced by 85%, compared to wild-type mice (WT). Taurine was reduced by 35% in the brains of 2 month-old HO, compared to WT. Anxiety, motor coordination and autistic-like behaviors were evaluated at 2 months of age using five behavioral tests: elevated plus maze, open field, social approach, marble burying and accelerating rotarod. Mice were tested from 3 groups including WT, HO and HO with oral treatment of 0.2% taurine in the drinking water (HOT). HOT were born from HO dams treated with taurine from before pregnancy and were continuously treated with taurine in the drinking water after weaning. The taurine levels in the brain and plasma of HOT were restored to WT at 2 months of age. Taurine-deficiency did not lead to changes in autistic-like behaviors as the HO were not significantly different from WT in marble burying and social approach. However, taurine-deficiency increased anxiety-like behavior in HO in the elevated plus maze and open field, compared to WT. Taurine treatment significantly restored the HOT to WT levels of anxiety-like behavior in the elevated plus maze. However, changes in exploratory activity in the open field were not improved with taurine treatment. There was a slight difference in motor ability as the WT mice stayed on the accelerating rotarod longer that the HO and HOT, but the difference was significant in the HOT during the first trial only, compared to WT.These data support hypothesis that taurine is essential for the emotional development of the brain. First, taurine is remarkably low in the neonatal brain of HO, compared to the adult brain of HO. Second, taurine treatment in HO partially improves anxiety-like behavior to WT.
Collapse
Affiliation(s)
- Eunkyue Park
- Department of Developmental Neurobiology, New York Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA.
| | - Abdeslem Elidrissi
- Department of Biological Science, College of Staten Island, Staten Island, NY, USA
| | - Georgia Schuller-Levis
- Department of Developmental Neurobiology, New York Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA
| | - Kathryn K Chadman
- Department of Developmental Neurobiology, New York Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA
| |
Collapse
|
22
|
Efficacy and tolerability of riluzole in psychiatric disorders: A systematic review and preliminary meta-analysis. Psychiatry Res 2019; 278:294-302. [PMID: 31254879 DOI: 10.1016/j.psychres.2019.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/16/2019] [Accepted: 06/16/2019] [Indexed: 12/15/2022]
Abstract
There is a pressing need for better pharmacological treatment strategies for psychiatric disorders as current treatment often results in partial symptom remission and unwanted side effects. A point of entry may be the glutamatergic system since glutamatergic dysregulation contributes to multiple psychiatric disorders. We evaluated the evidence from randomized controlled trials (RCTs) regarding the use of the glutamatergic drug riluzole in mental illnesses; and conducted preliminary meta-analyses of its effectiveness in treating obsessive-compulsive disorder (OCD) and depression. A systematic search was performed using PubMed (Medline), Embase, Cochrane Database of Systematic Reviews and PsycINFO. Meta-analyses were performed using Comprehensive Meta-Analysis software. Twenty-three RCTs were included for qualitative analysis and showed positive effects of adjunctive/monotherapy riluzole in patients with OCD, depression, autism, substance abuse and schizophrenia. Seven studies were also used for quantitative analysis, which revealed positive but non-significant effects on OCD and depression. Riluzole was generally well tolerated with few serious adverse events. The studies included in this systematic review were highly heterogeneous and the number of studies was limited per diagnostic condition. Moreover, few studies have examined riluzole as a single treatment. We suggest carrying out further work to provide definitive evidence for the benefit of riluzole in psychiatric illness.
Collapse
|
23
|
Kersten E, Dammeier S, Ajana S, Groenewoud JMM, Codrea M, Klose F, Lechanteur YT, Fauser S, Ueffing M, Delcourt C, Hoyng CB, de Jong EK, den Hollander AI. Metabolomics in serum of patients with non-advanced age-related macular degeneration reveals aberrations in the glutamine pathway. PLoS One 2019; 14:e0218457. [PMID: 31220133 PMCID: PMC6586309 DOI: 10.1371/journal.pone.0218457] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 06/03/2019] [Indexed: 12/20/2022] Open
Abstract
Age-related macular degeneration (AMD) is a common, progressive multifactorial vision-threatening disease and many genetic and environmental risk factors have been identified. The risk of AMD is influenced by lifestyle and diet, which may be reflected by an altered metabolic profile. Therefore, measurements of metabolites could identify biomarkers for AMD, and could aid in identifying high-risk individuals. Hypothesis-free technologies such as metabolomics have a great potential to uncover biomarkers or pathways that contribute to disease pathophysiology. To date, only a limited number of metabolomic studies have been performed in AMD. Here, we aim to contribute to the discovery of novel biomarkers and metabolic pathways for AMD using a targeted metabolomics approach of 188 metabolites. This study focuses on non-advanced AMD, since there is a need for biomarkers for the early stages of disease before severe visual loss has occurred. Targeted metabolomics was performed in 72 patients with early or intermediate AMD and 72 control individuals, and metabolites predictive for AMD were identified by a sparse partial least squares discriminant analysis. In our cohort, we identified four metabolite variables that were most predictive for early and intermediate stages of AMD. Increased glutamine and phosphatidylcholine diacyl C28:1 levels were detected in non-advanced AMD cases compared to controls, while the rate of glutaminolysis and the glutamine to glutamate ratio were reduced in non-advanced AMD. The association of glutamine with non-advanced AMD corroborates a recent report demonstrating an elevated glutamine level in early AMD using a different metabolomics technique. In conclusion, this study indicates that metabolomics is a suitable method for the discovery of biomarker candidates for AMD. In the future, larger metabolomics studies could add to the discovery of novel biomarkers in yet unknown AMD pathways and expand our insights in AMD pathophysiology.
Collapse
Affiliation(s)
- Eveline Kersten
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Sascha Dammeier
- Institute for Ophthalmic Research, Core Facility for Medical Bioanalytics, University of Tübingen, Tübingen, Germany
| | - Soufiane Ajana
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, LEHA team, UMR 1219, Bordeaux, France
| | - Joannes M. M. Groenewoud
- Department of Epidemiology, Biostatistics, and Health Technology Assessment, Radboud university medical center, Nijmegen, the Netherlands
| | - Marius Codrea
- Quantitative Biology Center, University of Tübingen, Tübingen, Germany
| | - Franziska Klose
- Institute for Ophthalmic Research, Core Facility for Medical Bioanalytics, University of Tübingen, Tübingen, Germany
| | - Yara T. Lechanteur
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Sascha Fauser
- F. Hoffmann - La Roche AG, Basel, Switzerland
- Department of Ophthalmology, University Hospital of Cologne, Cologne, Germany
| | - Marius Ueffing
- Institute for Ophthalmic Research, Core Facility for Medical Bioanalytics, University of Tübingen, Tübingen, Germany
| | - Cécile Delcourt
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, LEHA team, UMR 1219, Bordeaux, France
| | - Carel B. Hoyng
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Eiko K. de Jong
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | - Anneke I. den Hollander
- Department of Ophthalmology, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud university medical center, Nijmegen, the Netherlands
| | | |
Collapse
|
24
|
Huang F, Chen X, Jiang X, Niu J, Cui C, Chen Z, Sun J. Betaine ameliorates prenatal valproic-acid-induced autism-like behavioral abnormalities in mice by promoting homocysteine metabolism. Psychiatry Clin Neurosci 2019; 73:317-322. [PMID: 30821067 DOI: 10.1111/pcn.12833] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 02/08/2019] [Accepted: 02/25/2019] [Indexed: 12/15/2022]
Abstract
AIM Abnormally high levels of homocysteine (Hcy) are associated with autism spectrum disorder. Betaine is a methyl group donor in Hcy metabolism, and is known to prevent noxious Hcy accumulation. This study explored whether betaine could influence Hcy metabolism in a mouse model of autism and ameliorate behavioral abnormalities. METHODS Pregnant ICR mice were administered valproic acid (VPA) intraperitoneally on Embryonic Day 12.5. Serum Hcy concentrations in the offspring were measured by enzyme-linked immunosorbent assay. Expressions of Hcy-metabolism-related enzymes, betaine-Hcy methyltransferase, cystathionine β-synthase, and methionine synthase, were measured by quantitative reverse transcription polymerase chain reaction and western blotting. Offspring were treated by either betaine or saline at the age of 8 weeks and serum Hcy concentrations were measured. Social behaviors were assessed by sniff-duration test and three-chamber test. Repetitive behavior was evaluated by marble-burying test. Tail-flick test was performed to measure nociceptive sensitivity. RESULTS Prenatal VPA-exposed mice showed significantly elevated Hcy concentrations and decreased betaine-Hcy methyltransferase expression. Treatment with betaine could reduce Hcy level in VPA-exposed mice, attenuate social impairment and repetitive behavior, and normalize nociceptive sensitivity in this model. CONCLUSION Betaine could ameliorate autism-like features and play a beneficial role in a mouse autism model induced by prenatal VPA exposure.
Collapse
Affiliation(s)
- Fei Huang
- Psychiatric Ward, Qingdao Mental Health Center, Qingdao, China
| | - Xiaoqin Chen
- Psychiatric Ward, Qingdao Mental Health Center, Qingdao, China
| | - Xiangzhi Jiang
- Psychiatric Ward, Qingdao Mental Health Center, Qingdao, China
| | - Juan Niu
- Psychological Clinic, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Cuicui Cui
- Psychosomatic Ward, Shandong Mental Health Center, Jinan, China
| | - Zhenli Chen
- Psychosomatic Ward, Shandong Mental Health Center, Jinan, China
| | - Jun Sun
- Psychiatric Ward, Qingdao Mental Health Center, Qingdao, China
| |
Collapse
|
25
|
Obara T, Ishikuro M, Tamiya G, Ueki M, Yamanaka C, Mizuno S, Kikuya M, Metoki H, Matsubara H, Nagai M, Kobayashi T, Kamiyama M, Watanabe M, Kakuta K, Ouchi M, Kurihara A, Fukuchi N, Yasuhara A, Inagaki M, Kaga M, Kure S, Kuriyama S. Potential identification of vitamin B6 responsiveness in autism spectrum disorder utilizing phenotype variables and machine learning methods. Sci Rep 2018; 8:14840. [PMID: 30287864 PMCID: PMC6172273 DOI: 10.1038/s41598-018-33110-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/19/2018] [Indexed: 12/15/2022] Open
Abstract
We investigated whether machine learning methods could potentially identify a subgroup of persons with autism spectrum disorder (ASD) who show vitamin B6 responsiveness by selected phenotype variables. We analyzed the existing data from our intervention study with 17 persons. First, we focused on signs and biomarkers that have been identified as candidates for vitamin B6 responsiveness indicators. Second, we conducted hypothesis testing among these selected variables and their combinations. Finally, we further investigated the results by conducting cluster analyses with two different algorithms, affinity propagation and k-medoids. Statistically significant variables for vitamin B6 responsiveness, including combination of hypersensitivity to sound and clumsiness, and plasma glutamine level, were included. As an a priori variable, the Pervasive Developmental Disorders Autism Society Japan Rating Scale (PARS) scores was also included. The affinity propagation analysis showed good classification of three potential vitamin B6-responsive persons with ASD. The k-medoids analysis also showed good classification. To our knowledge, this is the first study to attempt to identify subgroup of persons with ASD who show specific treatment responsiveness using selected phenotype variables. We applied machine learning methods to further investigate these variables' ability to identify this subgroup of ASD, even when only a small sample size was available.
Collapse
Affiliation(s)
- Taku Obara
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Mami Ishikuro
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Gen Tamiya
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Statistical Genetics Team, RIKEN Center for Advanced Intelligence Project, Chuo-ku, Tokyo, Japan
| | - Masao Ueki
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Statistical Genetics Team, RIKEN Center for Advanced Intelligence Project, Chuo-ku, Tokyo, Japan
| | - Chizuru Yamanaka
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Satoshi Mizuno
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Masahiro Kikuya
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Hygiene and Public Health, School of Medicine, Teikyo University, Tokyo, Japan
| | - Hirohito Metoki
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Division of Public Health, Hygiene and Epidemiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi, Japan
| | - Hiroko Matsubara
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Masato Nagai
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Tomoko Kobayashi
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Pediatrics, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Machiko Kamiyama
- Department of Education, Art and Science, Yamagata University, Yamagata, Yamagata, Japan
| | - Mikako Watanabe
- Department of Pediatrics, Saka General Hospital, Shiogama, Miyagi, Japan
| | | | - Minami Ouchi
- Department of Pediatrics, NTT Medical Center Tokyo, Shinagawa-ku, Tokyo, Japan
- Bunkyo Education Center, Bunkyo-ku, Tokyo, Japan
| | - Aki Kurihara
- Fujimoto Shinjuku Hospital, Shinjuku-ku, Tokyo, Japan
| | - Naru Fukuchi
- Department of Psychiatry, Miyagi Psychiatric Center, Natori, Miyagi, Japan
- Miyagi Disaster Mental Health Care Center, Sendai, Miyagi, Japan
| | | | - Masumi Inagaki
- Department of Developmental Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Makiko Kaga
- Department of Developmental Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
- Tokyo Metropolitan Tobu Medical Center for Children with Developmental Disabilities, Koto-ku, Tokyo, Japan
| | - Shigeo Kure
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan
- Department of Pediatrics, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Shinichi Kuriyama
- Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Miyagi, Japan.
- Department of Molecular Epidemiology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan.
- Department of Disaster Public Health, International Research Institute of Disaster Science, Tohoku University, Sendai, Miyagi, Japan.
| |
Collapse
|
26
|
Park E, Cohen I, Gonzalez M, Castellano MR, Flory M, Jenkins EC, Brown WT, Schuller-Levis G. Is Taurine a Biomarker in Autistic Spectrum Disorder? ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 1:3-16. [PMID: 28849439 DOI: 10.1007/978-94-024-1079-2_1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Taurine is a sulfur-containing amino acid which is not incorporated into protein. However, taurine has various critical physiological functions including development of the eye and brain, reproduction, osmoregulation, and immune functions including anti-inflammatory as well as anti-oxidant activity. The causes of autistic spectrum disorder (ASD) are not clear but a high heritability implicates an important role for genetic factors. Reports also implicate oxidative stress and inflammation in the etiology of ASD. Thus, taurine, a well-known antioxidant and regulator of inflammation, was investigated here using the sera from both girls and boys with ASD as well as their siblings and parents. Previous reports regarding taurine serum concentrations in ASD from various laboratories have been controversial. To address the potential role of taurine in ASD, we collected sera from 66 children with ASD (males: 45; females: 21, age 1.5-11.5 years, average age 5.2 ± 1.6) as well as their unaffected siblings (brothers: 24; sisters: 32, age 1.5-17 years, average age 7.0 ± 2.0) as controls of the children with ASD along with parents (fathers: 49; mothers: 54, age 28-45 years). The sera from normal adult controls (males: 47; females: 51, age 28-48 years) were used as controls for the parents. Taurine concentrations in all sera samples were measured using high performance liquid chromatography (HPLC) using a phenylisothiocyanate labeling technique. Taurine concentrations from female and male children with ASD were 123.8 ± 15.2 and 145.8 ± 8.1 μM, respectively, and those from their unaffected brothers and sisters were 142.6 ± 10.4 and 150.8 ± 8.4 μM, respectively. There was no significant difference in taurine concentration between autistic children and their unaffected siblings. Taurine concentrations in children with ASD were also not significantly different from their parents (mothers: 139.6 ± 7.7 μM, fathers: 147.4 ± 7.5 μM). No significant difference was observed between adult controls and parents of ASD children (control females: 164.8 ± 4.8 μM, control males: 163.0 ± 7.0 μM). However, 21 out of 66 children with ASD had low taurine concentrations (<106 μM). Since taurine has anti-oxidant activity, children with ASD with low taurine concentrations will be examined for abnormal mitochondrial function. Our data imply that taurine may be a valid biomarker in a subgroup of ASD.
Collapse
Affiliation(s)
- Eunkyue Park
- Departments of Developmental Neurobiology, NY State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Rd, Staten Island, NY, 10314, USA.
| | - Ira Cohen
- Department of Psychology, NY State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, 10314, USA
| | - Maripaz Gonzalez
- Department of Psychology, NY State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, 10314, USA
| | - Mario R Castellano
- Division of Hematology/Oncology, Division of Research, Department of Medicine, Staten Island University Hospital-Northwell Health, Staten Island, NY, 10305, USA
| | - Michael Flory
- Department of Infant Development, NY State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, 10314, USA
| | - Edmund C Jenkins
- Department of Human Genetics, NY State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, 10314, USA
| | - W Ted Brown
- Department of Human Genetics, NY State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, 10314, USA
| | - Georgia Schuller-Levis
- Departments of Developmental Neurobiology, NY State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Rd, Staten Island, NY, 10314, USA
| |
Collapse
|
27
|
Al-Otaish H, Al-Ayadhi L, Bjørklund G, Chirumbolo S, Urbina MA, El-Ansary A. Relationship between absolute and relative ratios of glutamate, glutamine and GABA and severity of autism spectrum disorder. Metab Brain Dis 2018; 33:843-854. [PMID: 29397522 DOI: 10.1007/s11011-018-0186-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 01/08/2018] [Indexed: 11/22/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental pathology characterized by an impairment in social interaction, communication difficulties, and repetitive behaviors. Glutamate signaling abnormalities are thought to be considered as major etiological mechanisms leading to ASD. The search for amino-acidic catabolytes related to glutamate in patients with different levels of ASD might help current research to clarify the mechanisms underlying glutamate signaling and its disorders, particularly in relation to ASD. In the present study, plasma levels of the amino acids and their derivatives glutamate, glutamine, and γ-aminobutyric acid (GABA), associated with their relative ratios, were evaluated using an enzyme-linked immunosorbent assay (ELISA) technique in 40 male children with ASD and in 38 age- and gender-matched neurotypical health controls. The Social Responsiveness Scale (SRS) was used to evaluate social cognition, and the Childhood Autism Rating Scale (CARS) was used to assess subjects' behaviors. Children with ASD exhibited a significant elevation of plasma GABA and glutamate/glutamine ratio, as well as significantly lower levels of plasma glutamine and glutamate/GABA ratios compared to controls. No significant correlation was found between glutamate levels and the severity of autism, measured by CARS and SRS. In receiver operating characteristic (ROC) curve analysis, the area under the curve for GABA compared to other parameters was close to one, indicating its potential use as a biomarker. Glutamine appeared as the best predictive prognostic markers in the present study. The results of the present study indicate a disturbed balance between GABAergic and glutamatergic neurotransmission in ASD. The study also indicates that an increased plasma level of GABA can be potentially used as an early diagnostic biomarker for ASD.
Collapse
Affiliation(s)
- Hanoof Al-Otaish
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Laila Al-Ayadhi
- Autism Research and Treatment Center, Riyadh, Saudi Arabia
- Shaik AL-Amodi Autism Research Chair, King Saud University, Riyadh, Saudi Arabia
- Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Toften 24, 8610, Mo i Rana, Norway.
| | - Salvatore Chirumbolo
- Department of Neurological and Movement Sciences, University of Verona, Verona, Italy
| | | | - Afaf El-Ansary
- Autism Research and Treatment Center, Riyadh, Saudi Arabia
- Shaik AL-Amodi Autism Research Chair, King Saud University, Riyadh, Saudi Arabia
- Central Laboratory, Female Center for Medical Studies and Scientific Section, King Saud University, Riyadh, Saudi Arabia
- Medicinal Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
| |
Collapse
|
28
|
Hamed NO, Al-Ayadhi L, Osman MA, Elkhawad AO, Qasem H, Al-Marshoud M, Merghani NM, El-Ansary A. Understanding the roles of glutamine synthetase, glutaminase, and glutamate decarboxylase autoantibodies in imbalanced excitatory/inhibitory neurotransmission as etiological mechanisms of autism. Psychiatry Clin Neurosci 2018; 72:362-373. [PMID: 29356297 DOI: 10.1111/pcn.12639] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 12/06/2017] [Accepted: 01/10/2018] [Indexed: 12/26/2022]
Abstract
AIM Autism is a heterogeneous neurological disorder that is characterized by impairments in communication and social interactions, repetitive behaviors, and sensory abnormalities. The etiology of autism remains unclear. Animal, genetic, and post-mortem studies suggest that an imbalance exists in the neuronal excitation and inhibition system in autism. The aim of this study was to determine whether alterations of the measured parameters in children with autism are significantly associated with the risk of a sensory dysfunction. METHODS The glutamine synthetase (GS), kidney-type glutaminase (GLS1), and glutamic acid decarboxylase autoantibody levels were analyzed in 38 autistic children and 33 age- and sex-matched controls using enzyme-linked immunosorbent assays. RESULTS The obtained data demonstrated significant alterations in glutamate and glutamine cycle enzymes, as represented by GS and GLS1, respectively. While the glutamic acid decarboxylase autoantibodies levels were remarkably increased, no significant difference was observed compared to the healthy control participants. CONCLUSION The obtained data indicate that GS and GLS1 are promising indicators of a neuronal excitation and inhibition system imbalance and that combined measured parameters are good predictive biomarkers of autism.
Collapse
Affiliation(s)
- Najat O Hamed
- Department of Medical Biochemistry, University of Medical Sciences and Technology, Khartoum, Sudan.,Department of Pharmacology, Almaarefa Colleges for Science & Technology (MCST), Riyadh, Saudi Arabia
| | - Laila Al-Ayadhi
- Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia.,Autism Research and Treatment Center, King Khalid University Hospital, Riyadh, Saudi Arabia.,Shaik AL-Amodi Autism Research Chair, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed A Osman
- Department of Medical Biochemistry, University of Medical Sciences and Technology, Khartoum, Sudan.,Department of Pharmacology, Faculty of Pharmacy, University of Medical Sciences and Technology, Sudan Medical and Scientific Research Institute, Khartoum, Sudan
| | | | - Hanan Qasem
- Autism Research and Treatment Center, King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Majida Al-Marshoud
- Central Laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
| | - Nada M Merghani
- Central Laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
| | - Afaf El-Ansary
- Autism Research and Treatment Center, King Khalid University Hospital, Riyadh, Saudi Arabia.,Shaik AL-Amodi Autism Research Chair, King Saud University, Riyadh, Saudi Arabia.,Central Laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
29
|
Bitar T, Mavel S, Emond P, Nadal-Desbarats L, Lefèvre A, Mattar H, Soufia M, Blasco H, Vourc’h P, Hleihel W, Andres CR. Identification of metabolic pathway disturbances using multimodal metabolomics in autistic disorders in a Middle Eastern population. J Pharm Biomed Anal 2018; 152:57-65. [DOI: 10.1016/j.jpba.2018.01.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/17/2017] [Accepted: 01/06/2018] [Indexed: 12/21/2022]
|
30
|
da Silva VC, de Oliveira AC, D’Almeida V. Homocysteine and Psychiatric Disorders. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2017. [DOI: 10.1177/2326409817701471] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | | | - Vânia D’Almeida
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| |
Collapse
|
31
|
Lussu M, Noto A, Masili A, Rinaldi AC, Dessì A, De Angelis M, De Giacomo A, Fanos V, Atzori L, Francavilla R. The urinary1H-NMR metabolomics profile of an italian autistic children population and their unaffected siblings. Autism Res 2017; 10:1058-1066. [PMID: 28296209 DOI: 10.1002/aur.1748] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/19/2016] [Accepted: 12/24/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Milena Lussu
- Department of Biomedical Sciences; University of Cagliari; Cagliari Italy
| | - Antonio Noto
- Department of Surgical Sciences; University of Cagliari and Neonatal Intensive Care Unit, Puericulture Institute and Neonatal Section, Azienda Ospedaliera Universitaria Cagliari; Italy
| | - Alice Masili
- Department of Surgical Sciences; University of Cagliari and Neonatal Intensive Care Unit, Puericulture Institute and Neonatal Section, Azienda Ospedaliera Universitaria Cagliari; Italy
| | - Andrea C. Rinaldi
- Department of Biomedical Sciences; University of Cagliari; Cagliari Italy
| | - Angelica Dessì
- Department of Surgical Sciences; University of Cagliari and Neonatal Intensive Care Unit, Puericulture Institute and Neonatal Section, Azienda Ospedaliera Universitaria Cagliari; Italy
| | - Maria De Angelis
- Department of Soil, Plant and Food Sciences; University of Bari Aldo Moro; Bari Italy
| | - Andrea De Giacomo
- Child Neurological and Psychiatric Unit, Department of Neurological and Psychiatric Sciences; University of Bari Aldo Moro; Bari Italy
| | - Vassilios Fanos
- Department of Surgical Sciences; University of Cagliari and Neonatal Intensive Care Unit, Puericulture Institute and Neonatal Section, Azienda Ospedaliera Universitaria Cagliari; Italy
| | - Luigi Atzori
- Department of Biomedical Sciences; University of Cagliari; Cagliari Italy
| | - Ruggiero Francavilla
- Interdisciplinary Department of Medicine-Paediatric Section; University of Bari; Italy
| |
Collapse
|
32
|
Zaki MM, Abdel-Al H, Al-Sawi M. Assessment of plasma amino acid profile in autism using cation-exchange chromatography with postcolumn derivatization by ninhydrin. Turk J Med Sci 2017; 47:260-267. [PMID: 28263499 DOI: 10.3906/sag-1506-105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 05/28/2016] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM Autism is a heterogeneous neurodevelopmental disorder. This study aimed to assess the clinical significance of amino acid profile assay in autism using cation-exchange chromatography with ninhydrin postcolumn derivatization. MATERIALS AND METHODS This study included 42 autistic children and 26 apparently healthy children. All participants were subjected to the assay of plasma amino acids (essential, nonessential, and nonstandard) using cation-exchange chromatography with postcolumn derivatization by ninhydrin. RESULTS The levels of most of the essential amino acids were significantly lower in autistic children than controls. As regards nonessential amino acids, significantly lower levels for plasma cysteine, tyrosine, and serine and significantly higher levels for plasma glutamic acid were recorded in autistic children than controls. Finally, the autistic group demonstrated significantly lower levels of α-aminoadipic acid, carnosine, and β-alanine and significantly higher levels of hydroxyproline, phosphoserine, β-amino-isobutyric acid, and ammonia as compared to controls. CONCLUSION The study revealed that autistic children exhibit distinct alterations in the plasma levels of some amino acids, which can in turn participate in the disease etiology and can be applied as a diagnostic tool for early detection of autism.
Collapse
Affiliation(s)
- Mona Mohamed Zaki
- Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hala Abdel-Al
- Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed Al-Sawi
- Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| |
Collapse
|
33
|
Ruggiero V, Mura M, Cacace E, Era B, Peri M, Sanna G, Fais A. Free amino acids in fibromyalgia syndrome: relationship with clinical picture. Scandinavian Journal of Clinical and Laboratory Investigation 2017; 77:93-97. [PMID: 28079404 DOI: 10.1080/00365513.2016.1269362] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The objectives of our study were to evaluate free amino acid (FAA) concentrations in the serum of patients affected by fibromyalgia syndrome (FMS) and to determine the relationships between FAA levels and FMS clinical parameters. Thus, serum amino acid concentrations were quantified (HPLC analysis) in 23 females with fibromyalgia (according to the American College of Rheumatology classification criteria) and 20 healthy females. The results showed significantly higher serum concentrations of aspartate, cysteine, glutamate, glycine, isoleucine, leucine, methionine, ornithine, phenylalanine, sarcosine, serine, taurine, tyrosine and valine in FMS patients vs. healthy controls. Patients with higher Fibromyalgia Impact Questionnaire (FIQ) scores showed increased levels of alanine, glutamine, isoleucine, leucine, phenylalanine, proline and valine. In conclusion, our results indicate an imbalance in some FAAs in FMS patients. Increased Glu is particularly interesting, as it could explain the deficit in monoaminergic transmission involved in pain.
Collapse
Affiliation(s)
- Valeria Ruggiero
- a Dipartimento di Scienze Mediche e Sanità Pubblica , Università di Cagliari , Monserrato , Cagliari , Italy
| | - Massimiliano Mura
- b Ospedale Pediatrico "A. Cao", Azienda Ospedaliera Brotzu , Cagliari , Italy
| | - Enrico Cacace
- a Dipartimento di Scienze Mediche e Sanità Pubblica , Università di Cagliari , Monserrato , Cagliari , Italy
| | - Benedetta Era
- c Dipartimento di Scienze della Vita e dell'Ambiente , Università di Cagliari , Monserrato , Cagliari , Italy
| | - Marcella Peri
- d Dipartimento di Scienze Chirurgiche , Università di Cagliari , Monserrato , Cagliari , Italy
| | - Giuseppina Sanna
- b Ospedale Pediatrico "A. Cao", Azienda Ospedaliera Brotzu , Cagliari , Italy
| | - Antonella Fais
- c Dipartimento di Scienze della Vita e dell'Ambiente , Università di Cagliari , Monserrato , Cagliari , Italy
| |
Collapse
|
34
|
Mussap M, Noto A, Fanos V. Metabolomics of autism spectrum disorders: early insights regarding mammalian-microbial cometabolites. Expert Rev Mol Diagn 2016; 16:869-81. [PMID: 27310602 DOI: 10.1080/14737159.2016.1202765] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Autism spectrum disorders (ASD) are a group of neurodevelopmental disorders consisting of delayed or impaired language development and difficulties in social interactions. The very high degree of phenotypic heterogeneity in ASD originates from the interaction between environmental risk factors and susceptible genetic loci, leading to epigenetic DNA methylation. Advances in system biology are becoming strategic for implementing knowledge on the ASD aetiology and for the early diagnosis of the disease after birth. AREAS COVERED We overhauled the value of either targeted or untargeted metabolomics studies in autism for identifying the most relevant metabolic pathways and key metabolites implicated in the disease, with special emphasis to mammalian-microbial metabolites. The most discriminant metabolites in ASD belong to amino acid metabolism, antioxidant status, nicotinic acid metabolism, and mitochondrial metabolism. Expert commentary: Most published studies point out the role of metabolites derived from the gut microbiota: they can modulate the behavioral phenotype of the autistic children, greatly influencing host metabolic pathways and the immune system, shaping the individual susceptibility to the disease. Pitfalls and caveats in metabolomics results across studies have been additionally recognized and discussed leading to the conclusion that metabolomics studies in ASD are far to be definitive and univocal.
Collapse
Affiliation(s)
- Michele Mussap
- a Laboratory Medicine Service, IRCCS AOU San Martino-IST , University-Hospital , Genoa , Italy
| | - Antonio Noto
- b Department of Surgical Sciences, Neonatal Intensive Care Unit, Neonatal Pathology and Neonatal Section , University of Cagliari , Cagliari , Italy
| | - Vassilios Fanos
- b Department of Surgical Sciences, Neonatal Intensive Care Unit, Neonatal Pathology and Neonatal Section , University of Cagliari , Cagliari , Italy.,c Department of Public Health Clinical and Molecular Medicine , University of Cagliari , Cagliari , Italy
| |
Collapse
|
35
|
Sun C, Zou M, Zhao D, Xia W, Wu L. Efficacy of Folic Acid Supplementation in Autistic Children Participating in Structured Teaching: An Open-Label Trial. Nutrients 2016; 8:nu8060337. [PMID: 27338456 PMCID: PMC4924178 DOI: 10.3390/nu8060337] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 05/29/2016] [Accepted: 05/31/2016] [Indexed: 11/23/2022] Open
Abstract
Autism spectrum disorders (ASD) are recognized as a major public health issue. Here, we evaluated the effects of folic acid intervention on methylation cycles and oxidative stress in autistic children enrolled in structured teaching. Sixty-six autistic children enrolled in this open-label trial and participated in three months of structured teaching. Forty-four children were treated with 400 μg folic acid (two times/daily) for a period of three months during their structured teaching (intervention group), while the remaining 22 children were not given any supplement for the duration of the study (control group). The Autism Treatment Evaluation Checklist (ATEC) and Psychoeducational Profile-third edition (PEP-3) were measured at the beginning and end of the treatment period. Folic acid, homocysteine, and glutathione metabolism in plasma were measured before and after treatment in 29 autistic children randomly selected from the intervention group and were compared with 29 age-matched unaffected children (typical developmental group). The results illustrated folic acid intervention improved autism symptoms towards sociability, cognitive verbal/preverbal, receptive language, and affective expression and communication. Furthermore, this treatment also improved the concentrations of folic acid, homocysteine, and normalized glutathione redox metabolism. Folic acid supplementation may have a certain role in the treatment of children with autism.
Collapse
Affiliation(s)
- Caihong Sun
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin 150081, China.
| | - Mingyang Zou
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin 150081, China.
| | - Dong Zhao
- Zhejiang Provincial Center For Disease Prevention and Control, Hangzhou 310009, China.
| | - Wei Xia
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin 150081, China.
| | - Lijie Wu
- Department of Children's and Adolescent Health, Public Health College of Harbin Medical University, Harbin 150081, China.
| |
Collapse
|
36
|
Häge A, Banaschewski T, Buitelaar JK, Dijkhuizen RM, Franke B, Lythgoe DJ, Mechler K, Williams SCR, Dittmann RW. Glutamatergic medication in the treatment of obsessive compulsive disorder (OCD) and autism spectrum disorder (ASD) - study protocol for a randomised controlled trial. Trials 2016; 17:141. [PMID: 26983548 PMCID: PMC4794817 DOI: 10.1186/s13063-016-1266-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 02/29/2016] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Compulsivity is a cross-disorder trait underlying phenotypically distinct psychiatric disorders that emerge in childhood or adolescence. Despite the effectiveness of serotonergic compounds in the treatment of obsessive-compulsive disorder, treatment-resistant symptoms remaining in 40 to 60 % of patients present a pressing clinical problem. There are currently no medications that effectively treat the core impairments of autism spectrum disorder. There is an urgent need for the development of conceptually novel pharmacological strategies. Agents targeting glutamate neurotransmission, such as memantine, represent promising candidates. This proof-of-concept clinical study will allow pilot-testing of memantine for both clinical effectiveness and tolerability/safety. Memantine is an N-methyl-D-aspartate receptor antagonist, approved for the treatment of Alzheimer's dementia in a number of countries. METHODS/DESIGN This 12-week study has an add-on, randomised, double-blind, placebo-controlled design of treatment with memantine, including an up-titration phase (forced flexible dose design, 5-15 mg/day), in patients aged 6-17 years and 9 months with obsessive-compulsive disorder or autism spectrum disorder. It is planned to include patients with obsessive-compulsive disorder (N = 50) or autism spectrum disorder (N = 50) across four centres in three European countries. Patients will be randomly assigned to memantine or placebo in a 1:1 ratio. Primary objectives are the investigation of the effectiveness of memantine in paediatric patients for improving symptoms of compulsivity (primary outcome measure: total score on the Children's Yale-Brown Obsessive-Compulsive Scale) and to explore its tolerability and safety. Secondary objectives are to explore the effects of memantine at the level of structure, function and biochemistry of the fronto-striatal circuits, and to collect blood for genetic analyses and biomarkers. Tertiary objectives are to explore the role of new candidate genes and pathways for compulsivity by linking genes to clinical phenotypes, response to treatment, neurocognitive test performance, and key structural and functional neuroimaging measures of the fronto-striatal circuits and to explore biomarkers/proteomics for compulsivity traits. DISCUSSION This study is part of the large, translational project TACTICS ( http://www.tactics-project.eu/ ) that is funded by the European Union and investigates the neural, genetic and molecular factors involved in the pathogenesis of compulsivity. Its results will provide clinically relevant solid information on potential new mechanisms and medication treatment in obsessive-compulsive and autism spectrum disorders. TRIAL REGISTRATION EudraCT Number: 2014-003080-38 , date of registration: 14 July 2014.
Collapse
Affiliation(s)
- Alexander Häge
- />Paediatric Psychopharmacology, Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, PO Box 12 21 20, 68072 Mannheim, Germany
| | - Tobias Banaschewski
- />Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Jan K. Buitelaar
- />Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rick M. Dijkhuizen
- />Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Barbara Franke
- />Departments of Human Genetics and Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - David J. Lythgoe
- />Department of Neuroimaging, King’s College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Konstantin Mechler
- />Paediatric Psychopharmacology, Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, PO Box 12 21 20, 68072 Mannheim, Germany
| | - Steven C. R. Williams
- />Department of Neuroimaging, King’s College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Ralf W. Dittmann
- />Paediatric Psychopharmacology, Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, PO Box 12 21 20, 68072 Mannheim, Germany
| | - the TACTICS Consortium
- />Paediatric Psychopharmacology, Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, PO Box 12 21 20, 68072 Mannheim, Germany
- />Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- />Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
- />Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht, Utrecht, The Netherlands
- />Departments of Human Genetics and Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
- />Department of Neuroimaging, King’s College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| |
Collapse
|
37
|
Fluegge K. The role of air pollution exposures in mediating nutritional biochemical profiles in autism: A reply to Jory (2015). Nutrition 2016; 32:1163-4. [PMID: 27158054 DOI: 10.1016/j.nut.2016.02.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 02/17/2016] [Accepted: 02/20/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Keith Fluegge
- Institute of Health and Environmental Research, Cleveland, Ohio, USA
| |
Collapse
|
38
|
A sensitive and practical RP-HPLC-FLD for determination of the low neuroactive amino acid levels in body fluids and its application in depression. Neurosci Lett 2016; 616:32-7. [DOI: 10.1016/j.neulet.2016.01.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 01/06/2016] [Accepted: 01/15/2016] [Indexed: 01/23/2023]
|
39
|
Puig-Alcaraz C, Fuentes-Albero M, Calderón J, Garrote D, Cauli O. Increased homocysteine levels correlate with the communication deficit in children with autism spectrum disorder. Psychiatry Res 2015; 229:1031-7. [PMID: 26070768 DOI: 10.1016/j.psychres.2015.05.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 05/05/2015] [Accepted: 05/20/2015] [Indexed: 01/28/2023]
Abstract
The clinical significance of high levels of homocysteine in autism spectrum disorder (ASD) is unknown. An experimental study was conducted in order to evaluate the concentration of homocysteine in children with ASD and typically developing children and to analyse any relationships with the severity of core symptoms of ASD and other clinical features (drugs, co-morbidities, gender, age, diet). Core symptoms of autism were evaluated by DSM-IV criteria. Homocysteine, glutathione, methionine, 3-nitrotyrosine were measured in urine. The increase in homocysteine concentration was significantly and directly correlated with the severity of the deficit in communication skills, but was unrelated to deficit in socialisation or repetitive/restricted behaviour. Urinary homocysteine concentration may be a possible biomarker for communication deficits in ASD and a potential diagnostic tool useful to evaluate new treatment options since no treatment for core symptoms of ASD are available.
Collapse
Affiliation(s)
- Carmen Puig-Alcaraz
- Area of Mental Health and Psychiatry, Hospital of Sagunto, Sagunto, Valencia, Spain
| | | | | | | | - Omar Cauli
- Department of Nursing, University of Valencia, c/Jaume Roig s/n, 46010 Valencia, Spain.
| |
Collapse
|
40
|
Han Y, Xi Q, Dai W, Yang S, Gao L, Su Y, Zhang X. Abnormal transsulfuration metabolism and reduced antioxidant capacity in Chinese children with autism spectrum disorders. Int J Dev Neurosci 2015; 46:27-32. [DOI: 10.1016/j.ijdevneu.2015.06.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/20/2015] [Accepted: 06/29/2015] [Indexed: 11/29/2022] Open
Affiliation(s)
- Yu Han
- School of Public HealthTianjin Medical UniversityTianjinChina
| | - Qian‐qian Xi
- School of Public HealthTianjin Medical UniversityTianjinChina
| | - Wei Dai
- School of Public HealthTianjin Medical UniversityTianjinChina
| | - Shu‐han Yang
- School of Public HealthTianjin Medical UniversityTianjinChina
| | - Lei Gao
- School of Public HealthTianjin Medical UniversityTianjinChina
| | - Yuan‐yuan Su
- School of Public HealthTianjin Medical UniversityTianjinChina
| | - Xin Zhang
- School of Public HealthTianjin Medical UniversityTianjinChina
| |
Collapse
|
41
|
Sharma M, Tiwari M, Tiwari RK. Hyperhomocysteinemia: Impact on Neurodegenerative Diseases. Basic Clin Pharmacol Toxicol 2015; 117:287-96. [DOI: 10.1111/bcpt.12424] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Accepted: 05/19/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Meenakshi Sharma
- Dr. B. R. Ambedkar Centre for Biomedical Research; University of Delhi; Delhi India
- Chapman University School of Pharmacy; Harry and Diane Rinker Health Science Campus; Irvine CA USA
| | - Manisha Tiwari
- Dr. B. R. Ambedkar Centre for Biomedical Research; University of Delhi; Delhi India
| | - Rakesh Kumar Tiwari
- Chapman University School of Pharmacy; Harry and Diane Rinker Health Science Campus; Irvine CA USA
| |
Collapse
|
42
|
Ghanizadeh A, Singh AB, Berk M, Torabi-Nami M. Homocysteine as a potential biomarker in bipolar disorders: a critical review and suggestions for improved studies. Expert Opin Ther Targets 2015; 19:927-39. [PMID: 25882812 DOI: 10.1517/14728222.2015.1019866] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Homocysteine levels have been associated with major depression, but associations with bipolar disorder remain less clear. Some data suggest homocysteine levels have potential as a biomarker of treatment response; however the literature is mixed. AREAS COVERED Oxidized forms of homocysteine can be potentially neurotoxic leading to glutamate toxicity, apoptotic transformation and neurodegenerative processes. High homocysteine may be a risk biomarker for bipolar disorders, but the empirical base remains too weak for firm conclusions. This review discusses the current literature for homocysteine levels as a biomarker. EXPERT OPINION It is premature to foreclose the utility of homocysteine levels as a biomarker for bipolar disorder due the methodological inadequacies in the existing literature. These methodological design issues include lack of control for the confounding variables of concurrent medication, phase of bipolar disorder, gender, age, nutritional status, thyroid, liver and renal function, smoking or lean body mass. Well-powered association studies with confounder control could help shed more light on the important clinical question of homocysteine's utility as a biomarker in bipolar disorder. Future experiments are needed to examine the outcome of interventions modulating homocysteine for treating bipolar disorder. Only prospective randomized control trials will provide definitive evidence of the utility of homocysteine as a biomarker or therapeutic target.
Collapse
Affiliation(s)
- Ahmad Ghanizadeh
- Shiraz University of Medical Sciences, School of Medicine, Research Center for Psychiatry and Behavioral Sciences, Department of Psychiatry , Shiraz , Iran +00987116273070 ;
| | | | | | | |
Collapse
|
43
|
Samsel A, Seneff S. Glyphosate, pathways to modern diseases III: Manganese, neurological diseases, and associated pathologies. Surg Neurol Int 2015; 6:45. [PMID: 25883837 PMCID: PMC4392553 DOI: 10.4103/2152-7806.153876] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 01/21/2015] [Indexed: 12/20/2022] Open
Abstract
Manganese (Mn) is an often overlooked but important nutrient, required in small amounts for multiple essential functions in the body. A recent study on cows fed genetically modified Roundup(®)-Ready feed revealed a severe depletion of serum Mn. Glyphosate, the active ingredient in Roundup(®), has also been shown to severely deplete Mn levels in plants. Here, we investigate the impact of Mn on physiology, and its association with gut dysbiosis as well as neuropathologies such as autism, Alzheimer's disease (AD), depression, anxiety syndrome, Parkinson's disease (PD), and prion diseases. Glutamate overexpression in the brain in association with autism, AD, and other neurological diseases can be explained by Mn deficiency. Mn superoxide dismutase protects mitochondria from oxidative damage, and mitochondrial dysfunction is a key feature of autism and Alzheimer's. Chondroitin sulfate synthesis depends on Mn, and its deficiency leads to osteoporosis and osteomalacia. Lactobacillus, depleted in autism, depend critically on Mn for antioxidant protection. Lactobacillus probiotics can treat anxiety, which is a comorbidity of autism and chronic fatigue syndrome. Reduced gut Lactobacillus leads to overgrowth of the pathogen, Salmonella, which is resistant to glyphosate toxicity, and Mn plays a role here as well. Sperm motility depends on Mn, and this may partially explain increased rates of infertility and birth defects. We further reason that, under conditions of adequate Mn in the diet, glyphosate, through its disruption of bile acid homeostasis, ironically promotes toxic accumulation of Mn in the brainstem, leading to conditions such as PD and prion diseases.
Collapse
Affiliation(s)
- Anthony Samsel
- Research Scientist and Consultant, Deerfield, NH 03037, USA
| | - Stephanie Seneff
- Spoken Language Systems Group, Computer Science and Artificial Intelligence Laboratory, MIT, Cambridge MA 02139, USA
| |
Collapse
|
44
|
Niederhofer H. Is the vigilance regulation model of affective disorders and ADHD also appropriate for other psychiatric disorders (schizophrenia, autism) and is it associated with glutamate? Med Hypotheses 2015; 84:281-2. [DOI: 10.1016/j.mehy.2014.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 12/08/2014] [Accepted: 12/14/2014] [Indexed: 11/30/2022]
|
45
|
Nishijo M, Tai PT, Anh NTN, Nghi TN, Nakagawa H, Van Luong H, Anh TH, Morikawa Y, Waseda T, Kido T, Nishijo H. Urinary amino acid alterations in 3-year-old children with neurodevelopmental effects due to perinatal dioxin exposure in Vietnam: a nested case-control study for neurobiomarker discovery. PLoS One 2015; 10:e0116778. [PMID: 25584822 PMCID: PMC4293140 DOI: 10.1371/journal.pone.0116778] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 12/12/2014] [Indexed: 11/19/2022] Open
Abstract
In our previous study of 3-year-old children in a dioxin contamination hot spot in Vietnam, the high total dioxin toxic equivalent (TEQ-PCDDs/Fs)-exposed group during the perinatal period displayed lower Bayley III neurodevelopmental scores, whereas the high 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-exposed group displayed increased autistic traits. In autistic children, urinary amino acid profiles have revealed metabolic alterations in the amino acids that serve as neurotransmitters in the developing brain. Therefore, our present study aimed to investigate the use of alterations in urinary amino acid excretion as biomarkers of dioxin exposure-induced neurodevelopmental deficits in highly exposed 3-year-old children in Vietnam. A nested case-control study of urinary analyses was performed for 26 children who were selected from 111 3-year-old children whose perinatal dioxin exposure levels and neurodevelopmental status were examined in follow-up surveys conducted in a dioxin contaminated hot spot. We compared urinary amino acid levels between the following 4 groups: (1) a high TEQ-PCDDs/Fs and high TCDD-exposed group; (2) a high TEQ-PCDDs/Fs but low TCDD-exposed group; (3) a low TEQ-PCDDs/Fs exposed and poorly developed group; and (4) a low TEQ-PCDDs/Fs exposed and well-developed group. Urinary levels of histidine and tryptophan were significantly decreased in the high TEQ-PCDDs/Fs and high TCDD group, as well as in the high TEQ-PCDDs/Fs but low TCDD group, compared with the low TEQ-PCDDs/Fs and well-developed group. However, the ratio of histidine to glycine was significantly lower only in the high TEQ-PCDDs/Fs and high TCDD group. Furthermore, urinary histidine levels and the ratio of histidine to glycine were significantly correlated with neurodevelopmental scores, particularly for language and fine motor skills. These results indicate that urinary histidine is specifically associated with dioxin exposure-induced neurodevelopmental deficits, suggesting that urinary histidine may be a useful marker of dioxin-induced neurodevelopmental deficits and that histaminergic neurotransmission may be an important pathological contributor to dioxin-mediated neurotoxicity.
Collapse
Affiliation(s)
- Muneko Nishijo
- Department of Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
- * E-mail:
| | - Pham The Tai
- Biomedical and Pharmaceutical Research Center, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Nguyen Thi Nguyet Anh
- Department of Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Tran Ngoc Nghi
- Department of Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Hideaki Nakagawa
- Department of Public Health, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Hoang Van Luong
- Biomedical and Pharmaceutical Research Center, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Tran Hai Anh
- Biomedical and Pharmaceutical Research Center, Vietnam Military Medical University, Ha Noi, Vietnam
| | - Yuko Morikawa
- School of Nursing, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Tomoo Waseda
- Department of Obstetrics and Gynecology, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan
| | - Teruhiko Kido
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Ishikawa, 920-0942, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| |
Collapse
|
46
|
Ghanizadeh A, Ayoobzadehshirazi A. A randomized double-blind placebo-controlled clinical trial of adjuvant buspirone for irritability in autism. Pediatr Neurol 2015; 52:77-81. [PMID: 25451017 DOI: 10.1016/j.pediatrneurol.2014.09.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 09/21/2014] [Accepted: 09/24/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND The brain serotonin level is decreased in individuals with autism. Buspirone is a 5-HT(1A) receptor agonist with antiaggressive effects increasing prosocial behaviors. METHODS We conducted an 8-week randomized double-blind placebo-controlled clinical trial. Participants included 40 outpatient children and adolescents with autism. The patients took buspirone plus risperidone or risperidone plus placebo during 8 weeks. The patients were assessed at baseline, week 4, and week 8 using the Aberrant Behavior Checklist-Community Rating Scale. RESULTS Eighteen patients in the placebo group and 16 patients in the buspirone group completed this trial. The mean dose of buspirone was 6.7 (SD 2.7) mg/day. Irritability subscale score significantly decreased during this trial in both groups (buspirone group: declined from 25.7 [SD 5.7] to 16.3 [SD 8.5]; placebo group: declined from 24.7 [SD 7.6] to 18.2 [SD 7.7]). The Cohen d effect size was .45. Thirteen (81.2%) of 16 patients in the buspirone group and 7 (38.9%) of 18 patients in the placebo group showed a ≥30% decline in irritability score. The relative risk for treatment was 2.1. There were no serious adverse effects. The most common adverse effects in the buspirone group were increased appetite, drowsiness, and fatigue. CONCLUSION This clinical trial supports that low dose buspirone plus risperidone is more effective than risperidone plus placebo for treating irritability in individuals with autism.
Collapse
Affiliation(s)
- Ahmad Ghanizadeh
- Research Center for Psychiatry and Behavioral Sciences, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Psychiatry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Anaheed Ayoobzadehshirazi
- Research Center for Psychiatry and Behavioral Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
47
|
GHANIZADEH A, BERK M. Beta-lactam antibiotics as a possible novel therapy for managing epilepsy and autism, a case report and review of literature. IRANIAN JOURNAL OF CHILD NEUROLOGY 2015; 9:99-102. [PMID: 25767546 PMCID: PMC4322506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 04/20/2014] [Accepted: 05/09/2014] [Indexed: 12/04/2022]
Abstract
Autism is a disorder of unknown etiology. There are few FDA approved medications for treating autism. Co-occurring autism and epilepsy is common, and glutamate antagonists improve some symptoms of autism. Ceftriaxone, a beta-lactam antibiotic, increases the expression of the glutamate transporter 1 which decreases extracellular glutamate levels. It is hypothesized that modulating astrocyte glutamate transporter expression by ceftriaxone or cefixime might improve some symptoms of autism. This case report of a child with autism and epilepsy suggests a decrease in seizures after taking cefixime.
Collapse
Affiliation(s)
- Ahmad GHANIZADEH
- Research Center for Psychiatry and Behavioral Sciences, Shiraz University of Medical Sciences, Shiraz, Iran ,Department of Psychiatry, Shiraz University of Medical Sciences, School of Medicine, Shiraz, Iran ,Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Michael BERK
- Professor of Psychiatry, School of Medicine, Deakin University, Melbourne, Australia ,Professorial Research Fellow, The Florey Institute of Neuroscience and Mental Health, Orygen Research Centre and the Department of Psychiatry, University of Melbourne, Melbourne, Australia
| |
Collapse
|
48
|
Magnetic Resonance Spectroscopy Studies of Glutamate and GABA in Autism: Implications for Excitation-Inhibition Imbalance Theory. CURRENT DEVELOPMENTAL DISORDERS REPORTS 2014. [DOI: 10.1007/s40474-014-0032-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
49
|
Meguid NA, Atta HM, Rashed LA, Gouda AS, Khalil RO, Hashish AF. Autism and Fragile X: Is There a Neurochemical Link? Open Access Maced J Med Sci 2014. [DOI: 10.3889/oamjms.2014.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND:Autism and Fragile X syndrome are intertwined. This study aimed at assessing Serotonin, Glutamate, and Gama Amino Butyric Acid (GABA) in autism and Fragile X syndrome patients and to detect possible neurochemical similarities between the 2 disorders that can be used as metabolic biomarkers.DESIGN AND METHODS: Eighty subjects divided into four groups, two diseased groups (20 male patients with Autism and 20 males with Fragile X syndrome) and two control groups (20 neurotypical male controls and 20 Down syndrome male patients) were included. Estimation of Serotonin, Glutamate and GABA were done using Enzyme linked Immunosorbent Assay (ELISA), Tandem Mass Spectrometry and high-pressure liquid chromatography (HPLC), respectively.RESULTS: Serotonin was, exclusively, significantly low in autistic children. GABA was significantly high in both autistic and Fragile X children only, but not in Down syndrome children. Glutamate was significantly high in children with autism, Fragile X and Down syndrome Children.CONCLUSIONS: Autism and Fragile X syndrome share some neurochemical similarities with regards of high Glutamate and GABA levels while Serotonin was significantly different in the 2 disorders and may be used a unique biomarker for autism.
Collapse
|
50
|
Rojas DC. The role of glutamate and its receptors in autism and the use of glutamate receptor antagonists in treatment. J Neural Transm (Vienna) 2014; 121:891-905. [PMID: 24752754 PMCID: PMC4134390 DOI: 10.1007/s00702-014-1216-0] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 04/06/2014] [Indexed: 12/11/2022]
Abstract
Glutamate is the major excitatory neurotransmitter in the brain and may be a key neurotransmitter involved in autism. Literature pertaining to glutamate and autism or related disorders (e.g., Fragile X syndrome) is reviewed in this article. Interest in glutamatergic dysfunction in autism is high due to increasing convergent evidence implicating the system in the disorder from peripheral biomarkers, neuroimaging, protein expression, genetics and animal models. Currently, there are no pharmaceutical interventions approved for autism that address glutamate deficits in the disorder. New treatments related to glutamatergic neurotransmission, however, are emerging. In addition, older glutamate-modulating medications with approved indications for use in other disorders are being investigated for re-tasking as treatments for autism. This review presents evidence in support of glutamate abnormalities in autism and the potential for translation into new treatments for the disorder.
Collapse
Affiliation(s)
- Donald C Rojas
- Department of Psychology, Campus Delivery 1876, Colorado State University, Fort Collins, CO, 80523, USA,
| |
Collapse
|