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Autism and diet

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https://www.readbyqxmd.com/read/28623167/the-ketogenic-diet-affects-the-social-behavior-of-young-male-rats
#1
Daniela Kasprowska-Liśkiewicz, Arkadiusz D Liśkiewicz, Marta M Nowacka-Chmielewska, Joanna Nowicka, Andrzej Małecki, Jarosław J Barski
The positive effects of the ketogenic diet (KD) on social behavior have been recently reported in patients and rodent models of autism spectrum disorder (ASD). Given the beneficial effects of the KD on epilepsy, mitochondrial function, carbohydrate metabolism, and inflammation, treatment based on the KD has the potential to reduce some of the ASD-associated symptoms, including abnormal social interactions. It is not known whether the KD influences sociability by reducing the pathological processes underlying ASD or through some independent mechanism...
June 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28612113/gluten-and-casein-free-diet-and-autism-spectrum-disorders-in-children-a-systematic-review
#2
REVIEW
Anna Piwowarczyk, Andrea Horvath, Jan Łukasik, Ewa Pisula, Hania Szajewska
PURPOSE: Effective treatments for core symptoms of autism spectrum disorders (ASD) are lacking. We systematically updated evidence on the effectiveness of a gluten-free and casein-free (GFCF) diet as a treatment for ASD in children. METHODS: The Cochrane Library, MEDLINE, and EMBASE databases were searched up until August 2016, for randomized controlled trials (RCTs); additional references were obtained from reviewed articles. RESULTS: Six RCTs (214 participants) were included...
June 13, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28608247/tryptophan-status-in-autism-spectrum-disorder-and-the-influence-of-supplementation-on-its-level
#3
Joanna Kałużna-Czaplińska, Jagoda Jóźwik-Pruska, Salvatore Chirumbolo, Geir Bjørklund
Recent reports show that the worldwide incidence of autism spectrum disorder (ASD) is dramatically increasing, although ASD etiology and pathogenesis are still far to be fully elucidated. Some dietary-derived essential compounds, such as the amino acid tryptophan, appear to be impaired in patients with ASD. Tryptophan (Trp) plays a significant role in the human organism and serves as a precursor for a wide range of bioactive compounds, including major neurotransmitters. Research indicates that tryptophan might be deficient in subjects with ASD...
June 12, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28562286/nutritional-and-dietary-interventions-for-autism-spectrum-disorder-a-systematic-review
#4
REVIEW
Nila Sathe, Jeffrey C Andrews, Melissa L McPheeters, Zachary E Warren
CONTEXT: Children with autism spectrum disorder (ASD) frequently use special diets or receive nutritional supplements to treat ASD symptoms. OBJECTIVES: Our objective was to evaluate the effectiveness and safety of dietary interventions or nutritional supplements in ASD. DATA SOURCES: Databases, including Medline and PsycINFO. STUDY SELECTION: Two investigators independently screened studies against predetermined criteria...
May 26, 2017: Pediatrics
https://www.readbyqxmd.com/read/28538871/what-do-cochrane-systematic-reviews-say-about-interventions-for-autism-spectrum-disorders
#5
Larissa Lyra, Luiz Eduardo Rizzo, Camila Sá Sunahara, Daniela Vianna Pachito, Carolina de Oliveira Cruz Latorraca, Ana Luiza Cabrera Martimbianco, Rachel Riera
CONTEXT AND OBJECTIVE: Autism spectrum disorders (ASDs) include autistic disorder, Asperger's disorder and pervasive developmental disorder. The manifestations of ASDs can have an important impact on learning and social functioning that may persist during adulthood. The aim here was to summarize the evidence from Cochrane systematic reviews on interventions for ASDs. DESIGN AND SETTING: Review of systematic reviews, conducted within the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo...
March 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28538662/maternal-factors-that-induce-epigenetic-changes-contribute-to-neurological-disorders-in-offspring
#6
REVIEW
Avijit Banik, Deepika Kandilya, Seshadri Ramya, Walter Stünkel, Yap Seng Chong, S Thameem Dheen
It is well established that the regulation of epigenetic factors, including chromatic reorganization, histone modifications, DNA methylation, and miRNA regulation, is critical for the normal development and functioning of the human brain. There are a number of maternal factors influencing epigenetic pathways such as lifestyle, including diet, alcohol consumption, and smoking, as well as age and infections (viral or bacterial). Genetic and metabolic alterations such as obesity, gestational diabetes mellitus (GDM), and thyroidism alter epigenetic mechanisms, thereby contributing to neurodevelopmental disorders (NDs) such as embryonic neural tube defects (NTDs), autism, Down's syndrome, Rett syndrome, and later onset of neuropsychological deficits...
May 24, 2017: Genes
https://www.readbyqxmd.com/read/28502704/ketogenic-diet-leads-to-o-glcnac-modification-in-the-btbr-t-tf-j-mouse-model-of-autism
#7
Christopher Newell, Virginia L Johnsen, Nellie C Yee, Warren J Xu, Matthias S Klein, Aneal Khan, Jong M Rho, Jane Shearer
BACKGROUND: Protein O-linked-β-N-acetyl glucosamine (O-GlcNAc) is a post-translational modification to Ser/Thr residues that integrates energy supply with demand. Abnormal O-GlcNAc patterning is evident in several neurological disease states including epilepsy, Alzheimer's disease and autism spectrum disorder (ASD). A potential treatment option for these disorders includes the high-fat, low-carbohydrate, ketogenic diet (KD). The goal of this study was to determine whether the KD induces changes in O-GlcNAc in the BTBR(T+tf/j) (BTBR) mouse model of ASD...
May 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28497358/predictive-value-of-selected-biomarkers-related-to-metabolism-and-oxidative-stress-in-children-with-autism-spectrum-disorder
#8
Afaf El-Ansary, Geir Bjørklund, Salvatore Chirumbolo, Osima M Alnakhli
Autism spectrum disorder (ASD) as a neurodevelopmental disorder is characterized by impairments in social interaction, communication, and restricted, repetitive behavior. Several and reproducible studies have suggested that oxidative stress may represent one of the primary etiological mechanism of ASD that can be targeted for therapeutic intervention. In the present study, multiple regression and combined receiver operating characteristic (ROC) analysis were used to search for a relationship between impaired energy and oxidative metabolic pathways in the etiology of ASD and to find the linear combination that maximizes the partial area under a ROC curve for a pre-identified set of markers related to energy metabolism and oxidative stress...
May 11, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28373848/the-current-status-of-the-ketogenic-diet-in-psychiatry
#9
REVIEW
Emmanuelle C S Bostock, Kenneth C Kirkby, Bruce V M Taylor
BACKGROUND: The ketogenic diet (KD) has been used in treatment-resistant epilepsy since the 1920s. It has been researched in a variety of neurological conditions in both animal models and human trials. The aim of this review is to clarify the potential role of KD in psychiatry. METHODS: Narrative review of electronic databases PubMED, PsychINFO, and Scopus. RESULTS: The search yielded 15 studies that related the use of KD in mental disorders including anxiety, depression, bipolar disorder, schizophrenia, autism spectrum disorder (ASD), and attention deficit hyperactivity disorder (ADHD)...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28346923/gut-brain-axis-and-behavior
#10
Clair R Martin, Emeran A Mayer
In the last 5 years, interest in the interactions among the gut microbiome, brain, and behavior has exploded. Preclinical evidence supports a role of the gut microbiome in behavioral responses associated with pain, emotion, social interactions, and food intake. Limited, but growing, clinical evidence comes primarily from associations of gut microbial composition and function to behavioral and clinical features and brain structure and function. Converging evidence suggests that the brain and the gut microbiota are in bidirectional communication...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28324109/sex-specific-life-course-changes-in-the-neuro-metabolic-phenotype-of-glut3-null-heterozygous-mice-ketogenic-diet-ameliorates-electroencephalographic-seizures-and-improves-sociability
#11
Yun Dai, Yuanzi Zhao, Masatoshi Tomi, Bo-Chul Shin, Shanthie Thamotharan, Andrey Mazarati, Raman Sankar, Elizabeth A Wang, Carlos Cepeda, Michael S Levine, Jingjing Zhang, Andrew Frew, Jeffry R Alger, Peter M Clark, Monica Sondhi, Sudatip Kositamongkol, Leah Leibovitch, Sherin U Devaskar
We tested the hypothesis that exposure of glut3+/- mice to a ketogenic diet ameliorates autism-like features, which include aberrant behavior and electrographic seizures. We first investigated the life course sex-specific changes in basal plasma-cerebrospinal fluid (CSF)-brain metabolic profile, brain glucose transport/uptake, glucose and monocarboxylate transporter proteins, and adenosine triphosphate (ATP) in the presence or absence of systemic insulin administration. Glut3+/- male but not female mice (5 months of age) displayed reduced CSF glucose/lactate concentrations with no change in brain Glut1, Mct2, glucose uptake or ATP...
April 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28298276/early-life-nutritional-programming-of-cognition-the-fundamental-role-of-epigenetic-mechanisms-in-mediating-the-relation-between-early-life-environment-and-learning-and-memory-process
#12
REVIEW
Laura Moody, Hong Chen, Yuan-Xiang Pan
The perinatal period is a window of heightened plasticity that lays the groundwork for future anatomic, physiologic, and behavioral outcomes. During this time, maternal diet plays a pivotal role in the maturation of vital organs and the establishment of neuronal connections. However, when perinatal nutrition is either lacking in specific micro- and macronutrients or overloaded with excess calories, the consequences can be devastating and long lasting. The brain is particularly sensitive to perinatal insults, with several neurologic and psychiatric disorders having been linked to a poor in utero environment...
March 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28288301/oral-health-assessment-of-a-group-of-children-with-autism-disorder
#13
Mariana C Morales-Chávez
OBJECTIVE: The aim of this research was to determine the oral status of a group of children with autism. STUDY DESIGN: An observational transversal study was carried out in 96 pediatric patients between the ages of 2 and 16 years old with a diagnosis of autism. The patients were assessed to determine the presence of caries with Index Caries (WHO criteria) and debris and calculus with the Simplified Oral Hygiene Index, as well as the type of diet they followed. RESULTS: It was established that 41...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28270747/metabolic-dysfunction-underlying-autism-spectrum-disorder-and-potential-treatment-approaches
#14
REVIEW
Ning Cheng, Jong M Rho, Susan A Masino
Autism spectrum disorder (ASD) is characterized by deficits in sociability and communication, and increased repetitive and/or restrictive behaviors. While the etio-pathogenesis of ASD is unknown, clinical manifestations are diverse and many possible genetic and environmental factors have been implicated. As such, it has been a great challenge to identify key neurobiological mechanisms and to develop effective treatments. Current therapies focus on co-morbid conditions (such as epileptic seizures and sleep disturbances) and there is no cure for the core symptoms...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28223908/elevated-urinary-glyphosate-and-clostridia-metabolites-with-altered-dopamine-metabolism-in-triplets-with-autistic-spectrum-disorder-or-suspected-seizure-disorder-a-case-study
#15
William Shaw
CONTEXT: Autism is a neurodevelopmental disorder for which a number of genetic, environmental, and nutritional causes have been proposed. Glyphosate is used widely as a crop desiccant and as an herbicide in fields of genetically modified foods that are glyphosate resistant. Several researchers have proposed that it may be a cause of autism, based on epidemiological data that correlates increased usage of glyphosate with an increased autism rate. OBJECTIVE: The current study was intended to determine if excessive glyphosate was present in the triplets and their parents and to evaluate biochemical findings for the family to determine the potential effects of its presence...
February 2017: Integrative Medicine
https://www.readbyqxmd.com/read/28209774/methyl-donor-supplementation-alters-cognitive-performance-and-motivation-in-female-offspring-from-high-fat-diet-fed-dams
#16
Sarah E McKee, Nicola M Grissom, Christopher T Herdt, Teresa M Reyes
During gestation, fetal nutrition is entirely dependent on maternal diet. Maternal consumption of excess fat during pregnancy has been linked to an increased risk of neurologic disorders in offspring, including attention deficit/hyperactivity disorder, autism, and schizophrenia. In a mouse model, high-fat diet (HFD)-fed offspring have cognitive and executive function deficits as well as whole-genome DNA and promoter-specific hypomethylation in multiple brain regions. Dietary methyl donor supplementation during pregnancy or adulthood has been used to alter DNA methylation and behavior...
June 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28178201/rett-syndrome-a-focus-on-gut-microbiota
#17
Elisa Borghi, Francesca Borgo, Marco Severgnini, Miriam Nella Savini, Maria Cristina Casiraghi, Aglaia Vignoli
Rett syndrome (RTT) is an X-linked neurodevelopmental disorder affecting 1 in 10,000 live female births. Changes in microbiota composition, as observed in other neurological disorders such as autism spectrum disorders, may account for several symptoms typically associated with RTT. We studied the relationship between disease phenotypes and microbiome by analyzing diet, gut microbiota, and short-chain fatty acid (SCFA) production. We enrolled eight RTT patients and 10 age- and sex-matched healthy women, all without dietary restrictions...
February 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28171816/the-western-disease-autism-and-somali-parents-embodied-health-movements
#18
Claire Laurier Decoteau
There is some statistical evidence indicating that Somali refugees and immigrants have high rates of autism spectrum disorder (ASD). Somalis in North America call autism the "Western disease" because there is no word for autism in the Somali language and because many believe it does not exist in Somalia. In Toronto, Somali parents have forged an "epistemic community," united around a coherent theory of the development of autism, its defining features, and most successful therapies. They work together with researchers to support the theory that gut bacteria is a causal factor for the development of autism...
February 1, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28166277/ketogenic-diet-improves-behaviors-in-a-maternal-immune-activation-model-of-autism-spectrum-disorder
#19
David N Ruskin, Michelle I Murphy, Sierra L Slade, Susan A Masino
Prenatal factors influence autism spectrum disorder (ASD) incidence in children and can increase ASD symptoms in offspring of animal models. These may include maternal immune activation (MIA) due to viral or bacterial infection during the first trimesters. Unfortunately, regardless of ASD etiology, existing drugs are poorly effective against core symptoms. For nearly a century a ketogenic diet (KD) has been used to treat seizures, and recent insights into mechanisms of ASD and a growing recognition that immune/inflammatory conditions exacerbate ASD risk has increased interest in KD as a treatment for ASD...
2017: PloS One
https://www.readbyqxmd.com/read/28141738/new-insights-into-the-mechanisms-of-the-ketogenic-diet
#20
Detlev Boison
PURPOSE OF REVIEW: High-fat, low-carbohydrate ketogenic diets have been used for almost a century for the treatment of epilepsy. Used traditionally for the treatment of refractory pediatric epilepsies, in recent years the use of ketogenic diets has experienced a revival to include the treatment of adulthood epilepsies as well as conditions ranging from autism to chronic pain and cancer. Despite the ability of ketogenic diet therapy to suppress seizures refractory to antiepileptic drugs and reports of lasting seizure freedom, the underlying mechanisms are poorly understood...
April 2017: Current Opinion in Neurology
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