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"Oral bacteria" AND "autoimmune disease"

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https://www.readbyqxmd.com/read/25505950/bacterial-lipodipeptide-lipid-654-is-a-microbiome-associated-biomarker-for-multiple-sclerosis
#1
Vahid Farrokhi, Reza Nemati, Frank C Nichols, Xudong Yao, Emily Anstadt, Mai Fujiwara, James Grady, Daniel Wakefield, Wanda Castro, James Donaldson, Robert B Clark
Multiple sclerosis (MS) is an autoimmune disease of unknown etiology. Infectious agents have been suggested to have a role as environmental factors in MS, but this concept remains controversial. Recently, gastrointestinal commensal bacteria have been implicated in the pathogenesis of autoimmune diseases, but mechanisms underlying the relationship of human systemic autoimmunity with the commensal microbiome have yet to be identified. Consistent with the lack of understanding of pathogenic mechanisms and relevant environmental factors in MS, no blood biomarkers have been identified that distinguish MS patients from healthy individuals...
November 2013: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/21343168/autopathogenic-correlation-of-periodontitis-and-rheumatoid-arthritis
#2
REVIEW
John G Routsias, John D Goules, Andreas Goules, Georgios Charalampakis, Dimitrios Pikazis
Recently, a number of studies have pointed to a potential relationship between periodontitis (PO) and RA and vice versa. Both diseases are characterized by chronic inflammation, osseous destruction, damage of the supporting soft tissues, similar cellular immune responses and common immunogenetic findings. Although a definite, methodological report associating these diseases is missing from the literature, it is possible that both diseases share a common aetiopathogenic background. This background includes the post-translation modification citrullination, which guides the conversion of the amino acid arginine to citrulline in certain self-proteins, generating neo-epitope structures...
July 2011: Rheumatology
https://www.readbyqxmd.com/read/19852746/rheumatoid-arthritis-and-systemic-lupus-erythematosus-as-immune-complex-diseases
#3
REVIEW
Gerald Weissmann
Rheumatoid factors are 9s IgM autoantibodies directed against the hinge regions of 7s IgG's that have been changed consequent to their encounter with a foreign antigen, such as those produced by oral bacteria. Occasionally self-aggregating 7s IgG's serve this function. When these complexes are taken up by phagocytes in the joint, they form the "RA cell," a cell analogous to the LE cell of Hargraves. The circulating complexes, which activate complement cascades in the joint, are not specific for RA, being found in other rheumatic and autoimmune diseases as well as having a low prevalence in the normal population...
2009: Bulletin of the NYU Hospital for Joint Diseases
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