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Evaluation, Diagnosis, and Treatment of Gastrointestinal Disorders in Individuals With ASDs: A Consensus Report

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TLDR
The consensus expert opinion of the panel was that individuals with ASDs deserve the same thoroughness and standard of care in the diagnostic workup and treatment of gastrointestinal concerns as should occur for patients without ASDs.
Abstract
Autism spectrum disorders (ASDs) are common and clinically heterogeneous neurodevelopmental disorders. Gastrointestinal disorders and associated symptoms are commonly reported in individuals with ASDs, but key issues such as the prevalence and best treatment of these conditions are incompletely understood. A central difficulty in recognizing and characterizing gastrointestinal dysfunction with ASDs is the communication difficulties experienced by many affected individuals. A multidisciplinary panel reviewed the medical literature with the aim of generating evidence-based recommendations for diagnostic evaluation and management of gastrointestinal problems in this patient population. The panel concluded that evidence-based recommendations are not yet available. The consensus expert opinion of the panel was that individuals with ASDs deserve the same thoroughness and standard of care in the diagnostic workup and treatment of gastrointestinal concerns as should occur for patients without ASDs. Care providers should be aware that problem behavior in patients with ASDs may be the primary or sole symptom of the underlying medical condition, including some gastrointestinal disorders. For these patients, integration of behavioral and medical care may be most beneficial. Priorities for future research are identified to advance our understanding and management of gastrointestinal disorders in persons with ASDs.

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Dectin-1 Polymorphism: A Genetic Disease Specifier in Autism Spectrum Disorders?

TL;DR: The genetic diversity of CLEC7A gene influences the ASD phenotype by behaving as a disease specifier and imply that the genetic control of innate immune response could determine the autistic phenotype.
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Neuropeptides in the microbiota-brain axis and feeding behavior in autism spectrum disorder

TL;DR: It is shown that interactions between α-MSH and oxytocin systems in the brain can provide clues for better understanding of the mechanisms underlying altered feeding and social behaviors in ASD and that the origin of such alterations can be linked to gut microbiota.
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The role of the gut microbiome in mediating neurotoxic outcomes to PCB exposure.

TL;DR: This review will focus on the role of the microbiome and the gut in neurodevelopment and neurodegeneration as well as the impacts of environmental exposures, particularly to the neurotoxicant polychlorinated biphenyls (PCBs), given that the gut serves as the primary exposure route.
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A role for the serotonin reuptake transporter in the brain and intestinal features of autism spectrum disorders and developmental antidepressant exposure.

TL;DR: The potential roles of5-HT and SERT in the brain and intestinal manifestations of autism spectrum disorders and developmental antidepressant exposure are discussed and the potential therapeutic value of 5-HT4 modulation in the subsequent treatment of these conditions is addressed.
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How could a Gluten- and casein-Free Diet Ameliorate symptoms Associated with Autism spectrum conditions?

TL;DR: Three prospective modes of action used alone and in combination to explain the effects of a gluten- and casein-free diet on autism spectrum conditions are discussed, and a number of key points derived from each model offer testable markers for experimental evaluation onwards to ascertaining potential responsiveness to such dietary intervention in autism.
References
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