Journal
CLINICAL IMMUNOLOGY
Volume 130, Issue 3, Pages 235-243Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.clim.2008.10.010
Keywords
Smell; Depression; Autoimmune; Antibodies; Neurodegenerative diseases; Ribosomal P; Neuroimmunology; Pathology; Physiology; Immune network
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Smelt has traditionally been considered a less important sense when compared to sight or hearing, but recent research has unraveled important features inherent to the sense of smelt. Once considered just a chemical sensor for sampling the environment, data from animal models and human studies currently imply numerous and complex effects of smell on behavior, mood, and on the immune response. In this review we discuss a possible inter-relationship between olfactory impairment, autoimmunity and neurological/psychiatric symptoms in several diseases affecting the central nervous system (CNS) such as Parkinson, Alzheimer's disease, autism, schizophrenia, multiple sclerosis and neuropsychiatric lupus erythematosus. We suggest that common manifestations are not mere coincidences. Current data from animal models show that neuropsychiatric manifestations are intimately associated with smelt impairment, and autoimmune dysregulation, via autoantibodies (anti-NMDAR, anti-ribosomal P) or other mechanisms. From clues of pathological manifestations, we propose a novel approach to the understanding of the interactions between the CNS, the smell and the immune system. (C) 2008 Elsevier Inc. All rights reserved.
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