Disease ⇒ Behcet’s Disease {40000121} Record Keys Type:Disease Parent:[ ] Definition:Behcet’s Disease Details Initialisation date:2020-09-06 Other Terms:BD, Behçet Disease LinksWickipediaMerck Manual Meta Information MedDra ID:10004213 MedDra Level:pt ICD:[ ] Category:Rheumatology, Immunology Zone:[ ] Mechanism:Gut Inflammation, Leaky gut, Reduced SCFA Notes: - A significant decrease of butyrate production in patients was demonstrated (1) - Lack of butyrate (antiinflamatory) > Lack of MucinShared Reference Notes [1.1] [#Butyrate] [1.2] [#Butyrate, #Lactate, #Lipopolysaccharide] - These results showed that the gut microbiota in BD patients was enriched with lactic acid-producing bacteria, #Sulfate-reducing bacteria, and some opportunistic pathogens but lacked #Butyric acid-producing bacteria and methanogenic bacteria. - In mice receiving BD feces, it was observed that the intestinal barrier was disrupted with low expression of tight-junction proteins, leading to LPS release into circulation. - enrichment of #Bilophila, Alistipes, and #Paraprevotella was observed in the BD-recipient group. - a similar effect was observed by the administration of #Eubacterium rectale (a kind of #Butyrate-producing bacteria) in BD mice, which can upregulate NK1.1+ cells and reduce serum IL-17 levels and disease severity scores, sharing the partial mechanism of #Colchicine, which is used to treat BD patients. [1.3] - Depleted #Dorea, #Blautia, #Coprococcus, #Erysipelotrichaceae and #Lachnospiraceae as well as enriched #Bilophila and #Stenotrophomonas were identified in BU patients. - A peptide antigen (SteTDR) encoded by BU specifically enriched #Stenotrophomonas was identified to share homology with IRBP161-180. - Addition of the SteTDR peptide to the classical IRBP immunization protocol exacerbated EAU severity. [1.4] - Behcet’s disease > Stool samples were enriched with #Parabacteroides, sulphate-reducing bacteria #Bilophila and #Desulfovibrionaceae species. In addition, it was also noted that #Butyrate-producing bacteria #Clostridium and methanogens were reduced. - Transplantation of BD faeces in mice illustrated remarkable results in which gut integrity was breached due to decreased expression of tight junctions, with the subsequent effects of experimental uveitis. [1.5] - decrease in the proportion of #Butyrivibrio species in the intestinal tracts of patients with Behcet’s disease.References Notes[ ]