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Gluten and Autism Spectrum Disorder.
Croall, ID, Hoggard, N, Hadjivassiliou, M
Nutrients. 2021;(2)
Abstract
An expanding body of literature is examining connections between Autism Spectrum Disorder (ASD) and dietary interventions. While a number of specialist diets have been suggested as beneficial in ASD, gluten has received particularly close attention as a potentially exacerbating factor. Reports exist suggesting a beneficial effect of the gluten-free diet (GFD) in ameliorating behavioural and intellectual problems associated with ASD, while epidemiological research has also shown a comorbidity between ASD and coeliac disease. However, both caregivers and clinicians have expressed an uncertainty of the value of people with ASD going gluten-free, and as the GFD otherwise receives considerable public attention a discussion which focuses specifically on the interaction between ASD and gluten is warranted. In this review we discuss the historical context of ASD and gluten-related studies, and expand this to include an overview of epidemiological links, hypotheses of shared pathological mechanisms, and ultimately the evidence around the use and adoption of the GFD in people with ASD.
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How to manage adult coeliac disease: perspective from the NHS England Rare Diseases Collaborative Network for Non-Responsive and Refractory Coeliac Disease.
Baggus, EMR, Hadjivassiliou, M, Cross, S, Penny, H, Urwin, H, Watson, S, Woodward, JM, Sanders, DS
Frontline gastroenterology. 2020;(3):235-242
Abstract
Adult coeliac disease (CD) affects approximately 1% of the population. Most patients diagnosed will respond to a gluten-free diet; however, up to 30% may have persisting symptoms. Such patients may have ongoing issues associated with adherence, non-responsive CD or refractory CD. This article provides a clinical overview of how to manage this group of patients with persisting symptoms, including an investigational algorithm and details of how to contact the National Health Service England Rare Diseases Collaborative Network for Non-Responsive and Refractory Coeliac Disease. We hope this will be a valuable source of contemporary information for all UK gastroenterologists and internationally.
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3.
Treatment of Neurological Manifestations of Gluten Sensitivity and Coeliac Disease.
Zis, P, Hadjivassiliou, M
Current treatment options in neurology. 2019;(3):10
Abstract
PURPOSE OF REVIEW The aim of this paper was to overview the current literature in order to establish the available treatment options for the neurological manifestations of gluten-related disorders (serologically confirmed gluten sensitivity and coeliac disease). RECENT FINDINGS A range of debilitating neurological manifestations is increasingly being recognized in patients with gluten sensitivity with and without enteropathy even in the absence of gastrointestinal symptoms. Ataxia is the commonest neurological manifestation, followed by peripheral neuropathy. Epilepsy, headache, encephalopathy, various movement disorders, cognitive impairment, and muscle disorders have also been linked to gluten sensitivity and coeliac disease and are discussed in this review. Strict gluten-free diet is an effective first-line treatment of the neurological manifestations of gluten-related disorders. Very few patients will require additional immunosuppressive treatment usually in the form of mycophenolate.
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4.
Movement Disorders Related to Gluten Sensitivity: A Systematic Review.
Vinagre-Aragón, A, Zis, P, Grunewald, RA, Hadjivassiliou, M
Nutrients. 2018;10(8)
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Plain language summary
Gluten related disorders (GRDs) is an umbrella term for diseases triggered by gluten, including coeliac disease and gluten sensitivity. People with GRDs may experience a wide range of symptoms including digestive and nervous system issues. Movement Disorders (MDs) refers to a group of nervous system conditions that cause abnormal movements, which may be voluntary or involuntary. This literature review looked at the current research on GRDs and MDs such as epilepsy, Parkinson’s disease, restless leg syndrome and tremors. 48 papers were used for the review. Most papers looked at MDs in those diagnosed with coeliac disease, rather than other GRDs. The authors found many examples where the symptoms of MDs, including chorea, restless leg syndrome, stiff person syndrome and tics, improved on a gluten free diet. The authors concluded that gluten-related MDs may be more common than previously thought, and that following a gluten free diet can be beneficial in many cases. They recommended that gluten sensitivity and coeliac disease should be considered in patients with MDs of unknown cause.
Abstract
Gluten related disorders (GRD) represent a wide spectrum of clinical manifestations that are triggered by the ingestion of gluten. Coeliac disease (CD) or gluten sensitive enteropathy is the most widely recognised, but extra-intestinal manifestations have also been increasingly identified and reported. Such manifestations may exist in the absence of enteropathy. Gluten sensitivity (GS) is another term that has been used to include all GRD, including those where there is serological positivity for GS related antibodies in the absence of an enteropathy. Gluten ataxia (GA) is the commonest extraintestinal neurological manifestation and it has been the subject of many publications. Other movement disorders (MDs) have also been reported in the context of GS. The aim of this review was to assess the current available medical literature concerning MDs and GS with and without enteropathy. A systematic search was performed while using PubMed database. A total of 48 articles met the inclusion criteria and were included in the present review. This review highlights that the phenomenology of gluten related MDs is broader than GA and demonstrates that gluten-free diet (GFD) is beneficial in a great percentage of such cases.
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5.
Peripheral neuropathy in idiopathic Parkinson's disease: A systematic review.
Zis, P, Grünewald, RA, Chaudhuri, RK, Hadjivassiliou, M
Journal of the neurological sciences. 2017;:204-209
Abstract
BACKGROUND Parkinson's disease (PD) has been associated with peripheral neuropathy (PN). PN has been demonstrated in some rare genetic forms of PD (e.g. PARK2 mutations) but has also been linked to levodopa exposure. OBJECTIVE The aim of this systematic review is to clarify any evidence of peripheral nervous system involvement in idiopathic PD. METHODS A systematic computer-based literature search was conducted on PubMed database. FINDINGS The pooled estimate of the prevalence of large fiber PN in PD was 16.3% (based on 1376 patients). The pooled estimate of the prevalence of biopsy-proven small fiber neuropathy was 56.9% (based on 72 patients). Large fiber PN in PD is in the majority of cases distal, symmetrical, axonal and predominantly sensory. There are, however, few reports of chronic idiopathic demyelinating polyneuropathy and very occasional cases of acute neuropathies. Although nerve conduction studies have been performed in the majority of the studies, they included only a limited number of nerves, mainly in the lower limbs. There is little evidence to support a direct link between levodopa treatment and the development of PN in idiopathic PD. In the majority of the cases PN has been linked to abnormalities in vitamin B12, methylmalonic acid or fasting homocysteine levels. Additional aetiological risk factors for PN may be responsible for any apparent link between PD and PN. CONCLUSIONS Large-scale prospective studies with long-term follow-up with detailed baseline assessments are needed in order to understand the natural history of PN in PD, both on clinical and neurophysiological parameters.
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The Overlapping Area of Non-Celiac Gluten Sensitivity (NCGS) and Wheat-Sensitive Irritable Bowel Syndrome (IBS): An Update.
Catassi, C, Alaedini, A, Bojarski, C, Bonaz, B, Bouma, G, Carroccio, A, Castillejo, G, De Magistris, L, Dieterich, W, Di Liberto, D, et al
Nutrients. 2017;(11)
Abstract
Gluten-related disorders have recently been reclassified with an emerging scientific literature supporting the concept of non-celiac gluten sensitivity (NCGS). New research has specifically addressed prevalence, immune mechanisms, the recognition of non-immunoglobulin E (non-IgE) wheat allergy and overlap of NCGS with irritable bowel syndrome (IBS)-type symptoms. This review article will provide clinicians with an update that directly impacts on the management of a subgroup of their IBS patients whose symptoms are triggered by wheat ingestion.
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The gluten-free diet and its current application in coeliac disease and dermatitis herpetiformis.
Ciacci, C, Ciclitira, P, Hadjivassiliou, M, Kaukinen, K, Ludvigsson, JF, McGough, N, Sanders, DS, Woodward, J, Leonard, JN, Swift, GL
United European gastroenterology journal. 2015;(2):121-35
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Abstract
BACKGROUND A gluten-free diet (GFD) is currently the only available therapy for coeliac disease (CD). OBJECTIVES We aim to review the literature on the GFD, the gluten content in naturally gluten-free (GF) and commercially available GF food, standards and legislation concerning the gluten content of foods, and the vitamins and mineral content of a GFD. METHODS We carried out a PubMed search for the following terms: Gluten, GFD and food, education, vitamins, minerals, calcium, Codex wheat starch and oats. Relevant papers were reviewed and for each topic a consensus among the authors was obtained. CONCLUSION Patients with CD should avoid gluten and maintain a balanced diet to ensure an adequate intake of nutrients, vitamins, fibre and calcium. A GFD improves symptoms in most patients with CD. The practicalities of this however, are difficult, as (i) many processed foods are contaminated with gluten, (ii) staple GF foods are not widely available, and (iii) the GF substitutes are often expensive. Furthermore, (iv) the restrictions of the diet may adversely affect social interactions and quality of life. The inclusion of oats and wheat starch in the diet remains controversial.
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The spectrum of noncoeliac gluten sensitivity.
Aziz, I, Hadjivassiliou, M, Sanders, DS
Nature reviews. Gastroenterology & hepatology. 2015;(9):516-26
Abstract
The past 5 years have seen an increase in the use of a gluten-free diet outside a diagnosis of coeliac disease or IgE-mediated wheat allergy. This trend has led to the identification of a new clinical entity termed noncoeliac gluten sensitivity (NCGS). In this Review, we discuss the evidence for NCGS as demonstrated by the results of double-blind, placebo-controlled dietary rechallenge studies. Furthermore, the characteristic phenotype of individuals with NCGS is described as well as the symptom manifestations commonly reported after gluten exposure, which include intestinal symptoms consistent with IBS, and extraintestinal symptoms such as neurological dysfunction, psychological disturbances, fibromyalgia and skin rash. Moreover, emerging evidence suggests that NCGS can be associated with organic gastrointestinal pathologies, such as IBD, in which its presence might be a reflection of severe or stricturing disease. However, NCGS is not without its controversies and uncertainties, in particular pertaining to whether it is gluten or nongluten components of the grain evoking symptoms; evidence suggests that fermentable carbohydrates, amylase trypsin inhibitors and wheat-germ agglutinin can also be responsible culprits. Finally, we discuss the novel techniques that might help diagnose NCGS in the future.
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Gluten-related disorders: gluten ataxia.
Hadjivassiliou, M, Sanders, DD, Aeschlimann, DP
Digestive diseases (Basel, Switzerland). 2015;(2):264-268
Abstract
The term gluten-related disorders (GRD) refers to a spectrum of diverse clinical manifestations triggered by the ingestion of gluten in genetically susceptible individuals. They include both intestinal and extraintestinal manifestations. Gluten ataxia (GA) is one of the commonest neurological manifestations of GRD. It was originally defined as otherwise idiopathic sporadic ataxia in the presence of circulating antigliadin antibodies of IgA and/or IgG type. Newer more specific serological markers have been identified but are not as yet readily available. GA has a prevalence of 15% amongst all ataxias and 40% of all idiopathic sporadic ataxias. It usually presents with gait and lower limb ataxia. It is of insidious onset with a mean age at onset of 53 years. Up to 40% of patients have evidence of enteropathy on duodenal biopsy. Gastrointestinal symptoms are seldom prominent and are not a reliable indicator for the presence of enteropathy. Furthermore, the presence of enteropathy does not influence the response to a gluten-free diet. Most patients will stabilise or improve with strict adherence to gluten-free diet depending on the duration of the ataxia prior to the treatment. Up to 60% of patients with GA have evidence of cerebellar atrophy on MR imaging, but all patients have spectroscopic abnormalities primarily affecting the vermis. Recent evidence suggests that patients with newly diagnosed coeliac disease presenting to the gastroenterologists have abnormal MR spectroscopy at presentation associated with clinical evidence of subtle cerebellar dysfunction. The advantage of early diagnosis and treatment (mean age 42 years in patients presenting with gastrointestinal symptoms vs. 53 years in patients presenting with ataxia) may protect the first group from the development and/or progression of neurological dysfunction.
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10.
Coeliac disease.
Mooney, PD, Hadjivassiliou, M, Sanders, DS
BMJ (Clinical research ed.). 2014;:g1561