scholarly journals The Influence of Food Intake Specificity in Children with Autism on Gut Microbiota

2020 ◽  
Vol 21 (8) ◽  
pp. 2797 ◽  
Author(s):  
Aleksandra Tomova ◽  
Katarina Soltys ◽  
Petra Kemenyova ◽  
Miloslav Karhanek ◽  
Katarina Babinska
Keyword(s):  
Gut Microbiota ◽  
Food Habits ◽  
High Throughput Sequencing ◽  
Fermented Milk ◽  
Autism Spectrum ◽  
Food Selectivity ◽  
Omega 3 ◽  
Fibre Intake ◽  
Children With Asd ◽  
Α Diversity

Autism spectrum disorder (ASD) is a complex of neurodevelopmental conditions with increasing incidence. The microbiota of children with ASD is distinct from neurotypical children, their food habits are also different, and it is known that nutrient intake influences microbiota in a specific way. Thus, this study investigates the food habits of children with ASD and their association with the gut microbiota. Children with ASD had their dietary energy intakes similar to controls, but they more often demonstrated food selectivity, which seemed to result in deficiency of micronutrients such as vitamins K, B6, C, iron, cooper, docosahexaenoic and docosapentanoic acid. Using high-throughput sequencing, a DNA library of intestinal microbiota was performed. Core microbiota was similar in children with and without ASD, but Dichelobacter, Nitriliruptor and Constrictibacter were found to be putative markers of ASD. The changes in gut microbiota that we observed in connection to food selectivity, intake of fats and omega-3 in particular, fermented milk products and animal/plant protein consumption had similar character, independent of diagnosis. However, high fibre intake was connected with a decreased α-diversity only in children with ASD. High carbohydrate and fibre intake influenced β-diversity, changing the abundance of Bacteroides and other genera, many of them members of the Clostidiaceae. Modulating food habits of ASD children can influence their gut microbiota composition.

scholarly journals Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders

2021 ◽  
Vol 11 ◽  
Author(s):  
Hongfang Ding ◽  
Xinhao Yi ◽  
Xiaohua Zhang ◽  
Hui Wang ◽  
Hui Liu ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
High Throughput Sequencing ◽  
Clinical Manifestations ◽  
Autism Spectrum ◽  
Rrna Gene ◽  
Healthy Children ◽  
Healthy Controls ◽  
Children With Asd ◽  
Gi Symptoms ◽  
Autistic Symptoms

BackgroundAutism spectrum disorder (ASD) are complex behavioral changes manifesting early in childhood, which impacts how an individual perceives and socializes with others. The study aims to assess the disparities in gut microbiota (GM) amongst healthy controls and children with ASD.MethodsThe study was performed on 25 children with ASD and 20 healthy children. Autistic symptoms were diagnosed and assessed with the Diagnostic and Statistical Manual for Mental Disorders and the Autism Treatment Evaluation Checklist (ATEC). Gastrointestinal (GI) symptoms were assessed with a GI Severity Index (GSI) questionnaire. The fecal bacteria composition was investigated by the high−throughput sequencing of the V3–V4 region of the 16S rRNA gene. The alpha diversity was estimated using the Shannon, Chao, and ACE indexes. The unweighted UniFrac analysis and the PCA plots were used to represent the beta diversity. LDA and LEfSe were used to assess the effect sizes of each abundant differential taxon.ResultsChildren with high GSI scores had much higher ATEC Total scores than those with lower GSI-scores. GI symptoms were strongly associated with symptoms of ASD. There was no difference in Chao, ACE, and Shannon indexes between ASD patients and healthy controls. Both groups showed a significant microbiota structure clustering in the plotted PCAs and significant differences in its composition at the family, order, genus, and phyla levels. There were also noteworthy overall relative differences in Actinobacteria and Firmicutes between both groups.ConclusionsThis study shows the relationship between the clinical manifestations of Autistic symptoms and GI symptoms. ASD patients have dysbiosis of gut microbiota, which may be related to the onset of ASD. These findings may be beneficial for developing ASD symptoms by changing gut microbiota.

scholarly journals The Role of Occupational Therapy in Managing Food Selectivity of Children with Autism Spectrum Disorder: A Scoping Review

Children ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 1024
Author(s):  
Laura Reche-Olmedo ◽  
Laura Torres-Collado ◽  
Laura María Compañ-Gabucio ◽  
Manuela Garcia-de-la-Hera
Keyword(s):  
Autism Spectrum Disorder ◽  
Occupational Therapy ◽  
Scoping Review ◽  
Occupational Therapists ◽  
Children With Autism ◽  
Autism Spectrum ◽  
Food Selectivity ◽  
Spectrum Disorder ◽  
Journal Citation Reports ◽  
Children With Asd

Food selectivity is common in children with autism spectrum disorder (ASD). It can be defined as the unwillingness to eat common or new foods, resulting in a lack of variety in the diet or limited food consumption for multiple reasons, such as inflexibility or sensory alterations. We conducted a peer scoping review to describe the interventions that are carried out from occupational therapy (OT) in children with ASD with food selectivity. Two authors independently searched the databases PubMed, Scopus, Web of Science, and EMBASE, as well as the OT journals indexed in Journal Citation Reports. Articles exploring OT interventions in children (≤12 years) with ASD and food selectivity, published in Spanish or English, with experimental design, and with full text available were included. Of the 1445 articles identified, 8 articles met the inclusion criteria. Three main intervention categories were identified: sensory–behavioral, family focused, and other interventions. Most of the interventions from OT were aimed at treating sensory–behavioral aspects. Only three articles described interventions led exclusively by occupational therapists, and the rest were led by a multidisciplinary team. Finally, although these interventions are not exclusive to OT, occupational therapists can participate together with other professionals as an essential component in the treatment of food selectivity in children with ASD.

scholarly journals A Review of the Efficacy of the Dietary Intervention in Autism Spectrum Disorder

2021 ◽  
Vol 9 (F) ◽  
pp. 88-94
Author(s):  
Zainab Taha ◽  
Khalid A. Abdalhai
Keyword(s):  
Autism Spectrum Disorder ◽  
Dietary Intervention ◽  
Neurodevelopmental Disorder ◽  
Food Additives ◽  
Gastrointestinal Symptoms ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Omega 3 ◽  
Dietary Interventions ◽  
Children With Asd

BACKGROUND: Autism spectrum disorder (ASD) is an early-onset neurodevelopmental disorder with 1 in 68 children prevalence. The key symptoms of ASD include social deficits, verbal and non-verbal communication deficits, and restricted, repetitive patterns of behavior, interests, or activities. For unknown reasons, gastrointestinal symptoms are related to ASD. The aim of the current paper is to review the available literature on dietary interventions in children with ASD and provide up-to-date evidence. METHODS: Searches in online databases, using the search terms’ dietary intervention, “autism spectrum disorders,” and “autism” were conducted. The search targeted publications ranging from 2010 to 2020. RESULTS: Twenty-six studies with different study designs which evaluated the effectiveness of specific dietary interventions in children with ASD were included in our review. Several dietary interventions were of popular practice in the management of children with ASD, including elimination (gluten-/casein-free diet and oligoantigenic diet), modification (modified ketogenic diet), supplementation (minerals, vitamins, omega 3, and omega 6), and exclusion (food additives). Studies showed different results with varying degrees of evidence. Overall, data were inadequate to make accurate conclusions. CONCLUSION: There is little evidence to support the use of dietary interventions for children with ASD. Additional high-quality studies and further research are, therefore, needed.

Underdevelopment of the gut microbiota and bacteria species as non-invasive markers of prediction in children with autism spectrum disorder

Gut ◽  
2021 ◽  
pp. gutjnl-2020-324015
Author(s):  
Yating Wan ◽  
Tao Zuo ◽  
Zhilu Xu ◽  
Fen Zhang ◽  
Hui Zhan ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Gut Microbiota ◽  
Gut Microbiome ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Chinese Children ◽  
Chronological Age ◽  
Microbiome Composition ◽  
Children With Asd ◽  
Faecal Microbiome

ObjectiveThe gut microbiota has been suggested to play a role in autism spectrum disorder (ASD). We postulate that children with ASD harbour an altered developmental profile of the gut microbiota distinct from that of typically developing (TD) children. Here, we aimed to characterise compositional and functional alterations in gut microbiome in association with age in children with ASD and to identify novel faecal bacterial markers for predicting ASD.DesignWe performed deep metagenomic sequencing in faecal samples of 146 Chinese children (72 ASD and 74 TD children). We compared gut microbial composition and functions between children with ASD and TD children. Candidate bacteria markers were identified and validated by metagenomic analysis. Gut microbiota development in relation to chronological age was assessed using random forest model.ResultsASD and chronological age had the most significant and largest impacts on children’s faecal microbiome while diet showed no correlation. Children with ASD had significant alterations in faecal microbiome composition compared with TD children characterised by increased bacterial richness (p=0.021) and altered microbiome composition (p<0.05). Five bacterial species were identified to distinguish gut microbes in ASD and TD children, with areas under the receiver operating curve (AUC) of 82.6% and 76.2% in the discovery cohort and validation cohort, respectively. Multiple neurotransmitter biosynthesis related pathways in the gut microbiome were depleted in children with ASD compared with TD children (p<0.05). Developing dynamics of growth-associated gut bacteria (age-discriminatory species) seen in TD children were lost in children with ASD across the early-life age spectrum.ConclusionsGut microbiome in Chinese children with ASD was altered in composition, ecological network and functionality compared with TD children. We identified novel bacterial markers for prediction of ASD and demonstrated persistent underdevelopment of the gut microbiota in children with ASD which lagged behind their respective age-matched peers.

scholarly journals Altered Gut Microbiota in Korean Children with Autism Spectrum Disorders

Nutrients ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 3300
Author(s):  
Sungji Ha ◽  
Donghun Oh ◽  
Sunghee Lee ◽  
Jaewan Park ◽  
Jaeun Ahn ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Neurodevelopmental Disorder ◽  
Critical Role ◽  
Short Chain Fatty Acids ◽  
Bioinformatic Analysis ◽  
Autism Spectrum ◽  
Korean Children ◽  
Children With Asd ◽  
Genetic Information Processing ◽  
Behavioral Impairments

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by social and behavioral impairments. Recent studies have suggested that gut microbiota play a critical role in ASD pathogenesis. Herein, we investigated the fecal microflora of Korean ASD children to determine gut microbiota profiles associated with ASD. Specifically, fecal samples were obtained from 54 children with ASD and 38 age-matched children exhibiting typical development. Systematic bioinformatic analysis revealed that the composition of gut microbiota differed between ASD and typically developing children (TDC). Moreover, the total amounts of short-chain fatty acids, metabolites produced by bacteria, were increased in ASD children. At the phylum level, we found a significant decrease in the relative Bacteroidetes abundance of the ASD group, whereas Actinobacteria abundance was significantly increased. Furthermore, we found significantly lower Bacteroides levels and higher Bifidobacterium levels in the ASD group than in the TDC group at the genus level. Functional analysis of the microbiota in ASD children predicted that several pathways, including genetic information processing and amino acid metabolism, can be associated with ASD pathogenesis. Although more research is needed to determine whether the differences between ASD and TDC are actually related to ASD pathogenesis, these results provide further evidence of altered gut microbiota in children with ASD, possibly providing new perspectives on the diagnosis and therapeutic approaches for ASD patients.

scholarly journals Dietary Patterns and Weight Status in Italian Preschoolers with Autism Spectrum Disorder and Typically Developing Children

Nutrients ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 4039
Author(s):  
Benedetta Raspini ◽  
Margherita Prosperi ◽  
Letizia Guiducci ◽  
Elisa Santocchi ◽  
Raffaella Tancredi ◽  
...  
Keyword(s):  
Dietary Patterns ◽  
Weight Status ◽  
Dietary Habits ◽  
Eating Habits ◽  
Autism Spectrum ◽  
Food Selectivity ◽  
Typically Developing ◽  
Children With Asd ◽  
Increased Risk ◽  
The Impact

Atypical eating habits are more common in children with autism spectrum disorders (ASD) than typically developing (TD) peers. Feeding problems may lead to the double burden of specific nutrient deficiencies and excessive weight gain, with a consequent increase in obesity prevalence. The dietary intake of Italian preschoolers with ASD compared to their TD peers and the impact of their dietary choices on their weight status and relationship to food selectivity (FS) were investigated. Dietary patterns and their associations with body mass index (BMI) were evaluated in 65 children with ASD and 82 peers with TD aged 1.3–6.4 years. Eating habits were assessed with a modified version of a parent-rated semi-quantitative Food Frequency Questionnaire. Moreover, the prevalence of FS and possible links with dietary patterns and BMI were investigated in the ASD group. Children with ASD consumed significantly higher amounts of simple sugars, processed and ultra-processed carbohydrates, both low- and high-fat animal proteins, and lower amounts of vegetables and fruits compared to peers with TD. The obesity rate was 1.5% in children with TD and more than fourfold (6.2%) in children with ASD, although the difference between groups was not statistically significant. FS was significantly more frequent in children with ASD than in peers with TD. Children with ASD and FS showed significantly lower annual intakes of vegetable proteins and fiber (considered essential nutrients for a healthy diet) than children with ASD without FS. Our results showed that children with ASD showed different dietary habits than those with TD, with the higher consumption of energy-dense foods and lower amounts of food-sourced fibers, which could place them at increased risk to develop overweight, obesity, and micronutrient deficiencies later in life.

scholarly journals Fecal Supernatant from Adult with Autism Spectrum Disorder Alters Digestive Functions, Intestinal Epithelial Barrier, and Enteric Nervous System

2021 ◽  
Vol 9 (8) ◽  
pp. 1723
Author(s):  
Jacques Gonzales ◽  
Justine Marchix ◽  
Laetitia Aymeric ◽  
Catherine Le Berre-Scoul ◽  
Johanna Zoppi ◽  
...  
Keyword(s):  
Nervous System ◽  
Gut Microbiota ◽  
Enteric Nervous System ◽  
Fecal Microbiota ◽  
Autism Spectrum ◽  
Repetitive Behaviors ◽  
Rrna Gene ◽  
Intestinal Epithelial ◽  
Microbiota Composition ◽  
Α Diversity

Autism Spectrum Disorders (ASDs) are neurodevelopmental disorders defined by impaired social interactions and communication with repetitive behaviors, activities, or interests. Gastrointestinal (GI) disturbances and gut microbiota dysbiosis are frequently associated with ASD in childhood. However, it is not known whether microbiota dysbiosis in ASD patients also occurs in adulthood. Further, the consequences of altered gut microbiota on digestive functions and the enteric nervous system (ENS) remain unexplored. Therefore, we studied, in mice, the ability offecal supernatant (FS) from adult ASD patients to induce GI dysfunctions and ENS remodeling. First, the analyses of the fecal microbiota composition in adult ASD patients indicated a reduced α-diversity and increased abundance of three bacterial 16S rRNA gene amplicon sequence variants compared to healthy controls (HC). The transfer of FS from ASD patients (FS–ASD) to mice decreased colonic barrier permeability by 29% and 58% compared to FS–HC for paracellular and transcellular permeability, respectively. These effects are associated with the reduced expression of the tight junction proteins JAM-A, ZO-2, cingulin, and proinflammatory cytokines TNFα and IL1β. In addition, the expression of glial and neuronal molecules was reduced by FS–ASD as compared to FS-HC in particular for those involved in neuronal connectivity (βIII-tubulin and synapsin decreased by 31% and 67%, respectively). Our data suggest that changes in microbiota composition in ASD may contribute to GI alterations, and in part, via ENS remodeling.

scholarly journals Composition of Gut Microbiota in Children with Autism Spectrum Disorder: A Systematic Review and Meta-Analysis

Nutrients ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 792 ◽  
Author(s):  
Lucía Iglesias-Vázquez ◽  
Georgette Van Ginkel Riba ◽  
Victoria Arija ◽  
Josefa Canals
Keyword(s):  
Autism Spectrum Disorder ◽  
Gut Microbiota ◽  
Psychiatric Symptoms ◽  
Meta Analysis ◽  
Public Health Problem ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Lower Percentage ◽  
Children With Asd ◽  
Meta Analyses

Background: Autism spectrum disorder (ASD) is a public health problem and has a prevalence of 0.6%–1.7% in children. As well as psychiatric symptoms, dysbiosis and gastrointestinal comorbidities are also frequently reported. The gut–brain microbiota axis suggests that there is a form of communication between microbiota and the brain underlying some neurological disabilities. The aim of this study is to describe and compare the composition of gut microbiota in children with and without ASD. Methods: Electronic databases were searched as far as February 2020. Meta-analyses were performed using RevMan5.3 to estimate the overall relative abundance of gut bacteria belonging to 8 phyla and 17 genera in children with ASD and controls. Results: We included 18 studies assessing a total of 493 ASD children and 404 controls. The microbiota was mainly composed of the phyla Bacteroidetes, Firmicutes, and Actinobacteria, all of which were more abundant in the ASD children than in the controls. Children with ASD showed a significantly higher abundance of the genera Bacteroides, Parabacteroides, Clostridium, Faecalibacterium, and Phascolarctobacterium and a lower percentage of Coprococcus and Bifidobacterium. Discussion: This meta-analysis suggests that there is a dysbiosis in ASD children which may influence the development and severity of ASD symptomatology. Further studies are required in order to obtain stronger evidence of the effectiveness of pre- or probiotics in reducing autistic behaviors.

scholarly journals Current Correction Techniques of Food Selectivity in Children with Autism Spectrum Disorders (ASD)

2018 ◽  
Vol 16 (4) ◽  
pp. 21-27
Author(s):  
V.K. Toguleva
Keyword(s):  
Eating Disorders ◽  
Autism Spectrum Disorders ◽  
Gastrointestinal Tract ◽  
Eating Behavior ◽  
Children With Autism ◽  
Sensory Systems ◽  
Autism Spectrum ◽  
Food Selectivity ◽  
Children With Asd ◽  
Spectrum Disorders

According to various reports, eating disorders in children with ASD can occur in 70—90% of cases. The article provides review of studies on the problems of food selectivity in children with autism. Presented results of the author’s study of food selectivity correction techniques in children with autism spectrum disorders, conducted from October 2015 to May 2017. It was revealed that parents of children with ASD have certain types of behavior that are different from the behavior of parents with neurotypical children. It has also been determined that early aged children with ASD have specific features of eating behavior, including various degrees food selectivity, as well as functioning features of the sensory systems and the gastrointestinal tract.

scholarly journals Management of Gut Microbiota to Improve Sleep Dysfunction for Children with Autism-Spectrum Disorders

2021 ◽  
Vol 9 (4) ◽  
pp. 85-91
Author(s):  
Vasanth Senthilraja ◽  
Ethan Yang ◽  
Akshay Jakkidi Reddy ◽  
Eric Liu ◽  
Himanshu Wagh
Keyword(s):  
Autism Spectrum Disorders ◽  
Gut Microbiota ◽  
Sleep Disorders ◽  
Children With Autism ◽  
Autism Spectrum ◽  
Hormone Production ◽  
Sleep Dysfunction ◽  
Children With Asd ◽  
Significant Difference ◽  
Spectrum Disorders

Many children with Autism-Spectrum Disorders (ASD) struggle with sleep dysfunction. This can be caused by a lack of important gut microbiota (GM) that have the ability to influence functions of the nervous system through the gut-brain axis. The metabolites of GM function are responsible for influencing the production of pertinent sleep hormones, such as melatonin and serotonin. The research has identified lower abundance levels of the gut microbiota species Faecalibacterium and Agathobacter in children with ASD that struggled with sleep disorders. When exploring their impact on sleep hormone production, a positive correlation was identified between these species of GM and melatonin levels, which regulates circadian sleep cycles. In addition, a negative correlation was observed between these species of GM and serotonin levels, which high levels of can lead to wakefulness and sleep dysfunction. To improve GM levels in children with ASD, a Bimuno® galactooligosaccharide (B-GOS®) prebiotic intervention was tested in children with ASD. While this intervention led to improved GM levels and increased levels of Faecalibacterium growth, a significant difference was not noticed between groups. Furthermore, an analysis of probiotic intervention studies in various individuals revealed the ability to improve sleep metric scores through consumption of probiotics. These findings can be further explored in children with ASD for potential treatments for sleep disorders.

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