alexa Brain Fires in Autism Spectrum Disorders
ISSN: 2090-7214

Clinics in Mother and Child Health
Open Access

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Review Article

Brain Fires in Autism Spectrum Disorders

Theoharides TC1,2,3* Stewart JM4 and Athanassiou M5

1Molecular Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, USA

2Department of Internal Medicine, Tufts University School of Medicine and Tufts Medical Center, Boston, MA, USA

3Department of Psychiatry, Tufts University School of Medicine and Tufts Medical Center, Boston, MA, USA

4Registered Mother-Infant-Perinatal Nurse, Tufts University School of Medicine and Tufts Medical Center, Boston, MA, USA

5Bachelor of Arts in Health Science, Tufts University, Medford MA, USA

Corresponding Author:
Theoharides TC
Molecular Immunopharmacology and
Drug Discovery Laboratory, Department of Integrative
Physiology and Pathobiology, Tufts University
School of Medicine, Boston, USA
Tel: (617) 636-6866
Fax: (617) 636-2456
E-mail: [email protected]

Received Date: January 28, 2016 Accepted Date: February 15, 2016 Published Date: February 27, 2016

Citation: Theoharides TC, Stewart JM, Athanassiou M (2016) Brain Fires in Autism Spectrum Disorders. Clinics Mother Child Health 13:226. doi:10.4172/2090-7214.1000226

Copyright: © 2016 Theoharides TC, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Autism spectrum disorders (ASD) is characterized by social and communicative deficits, severe anxiety, and stereotypic movements. Despite affecting as many as 1 in 45 US children in the USA, the pathogenesis of ASD is still unknown. Recent epidemiological studies indicated a strong statistical correlation between risk for maternal / infant atopic diseases and ASD suggesting the possible involvement and activation of mast cells (MC). These unique immune cells are located close to blood vessels in all tissues, including the thalamus and hypothalamus in the brain, which regulate emotions known to be dysfunctional in ASD. Moreover, MCs are stimulated by two brain peptides, corticotropin-releasing hormone (CRH) and neurotensin (NT), which we showed to be high in the blood of children with ASD. Stimulated MCs then secrete inflammatory molecules that activate brain microglia, which proliferate and “choke off” nerve communication. These inflammatory molecules are increased in the brain and serum of patients with ASD and also lead to disruption of the protective blood brain barrier (BBB), which is regulated by MCs, permitting the entry of circulating white blood cells and toxins contributing to brain. We further reported that the elevated blood levels of two inflammatory molecules, IL-6 and TNF, identify a subgroup of children with ASD, who benefit most from a promising treatment with the natural flavonoid luteolin that combats brain inflammation. Extinguishing inflammation (“Brain fires”) may be the best hope for curing ASD.

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