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| 1 | Association between orofacial granulomatosis and Crohn's disease in children:Systematic review显示文摘AIM:To review pediatric cases of orofacial granulomatosis(OFG),report disease characteristics,and explore the association between OFG and Crohn’s disease.METHODS:We conducted a systematic review according to the PRISMA guidelines.We searched Medline,LILACS,Virtual Health Library,and Web of Knowledge in September 2013 for cases of OFG in the pediatric age range(<18 years),with no language limitations.All relevant articles were accessed in full text.The manual search included references of retrieved articles.We extracted data on patients’characteristics,disease characteristics,association with other diseases,and treatment.We analyzed the data and reported the results in tables and text.RESULTS:We retrieved 173 reports of OFG in children.Mean age at onset was 11.1±3.8 years(range:2.0-18years).Prevalence in males was significant higher than in females(P<0.001),with a male:female ratio of 2:1.Gastrointestinal signs or symptoms were present in 26.0%of children at the time of OFG diagnosis.Overall,70/173(40.4%)children received a concomitant diagnosis of Crohn’s disease.In about half(51.4%)of the cases the onset of OFG anticipated the diagnosis of Crohn’s disease,with a mean time between the two diagnoses of 13.1±11.6 mo(range:3-36 mo).Overall,21/173(12.1%)of the children with OFG had perianal disease,while 11/173(6.4%)had a family history of Crohn’s disease.Both perianal disease and a family history of Crohn’s disease were significantly associated with a higher risk of Crohn’s disease diagnosis in children with OFG[relative risk(RR)=3.10,95%confidence interval(CI):2.46-3.90;RR=2.74,95%CI:2.24-3.36,P<0.0001 for both).Treatment of OFG included steroids(70.8%of children)and other immunosuppressive drugs(42.7%),such as azathioprine,thalidomide and infliximab.CONCLUSION:High prevalence of Crohn’s disease in children with OFG suggests that OFG may be a subtype of Crohn’s disease. | Marzia Lazzerini Matteo Bramuzzo Alessro Ventura | 2014 | World Journal of Gastroenterology2014，20，23： | 2 |
| 2 | Role of tristetraprolin phosphorylation in paediatric patients with inflammatory bowel disease显示文摘BACKGROUND Intestinal inflammation and epithelial injury are the leading actors of inflammatory bowel disease(IBD),causing an excessive pro-inflammatory cytokines expression.Tristetraprolin(TTP),an mRNA binding protein,plays a role in regulating the inflammatory factors,recognizing specific sequences on the 3’untranslated region of cytokine mRNAs.TTP activity depends on its phosphorylation state:the unphosphorylated TTP degrades pro-inflammatory cytokine mRNAs;on the contrary,the phosphorylated TTP fails to destabilize mRNAs furthering their expression.The phospho-TTP forms a complex with the chaperone protein 14-3-3.This binding could be one of the factors that promote intestinal inflammation as a cause of disease progression.AIM To assess if TTP phosphorylation has a role in paediatric IBD.METHODS The study was carried out on a cohort of paediatric IBD patients.For each patient enrolled,a specimen of inflamed and non-inflamed colonic mucosa was collected.Furthermore,the experiments were conducted on macrophages differentiated from blood samples of the same patients.Macrophages from healthy donors’blood were used as controls.Co-immunoprecipitation assay and immunoblotting analyses were performed to observe the formation of the phospho-TTP/14-3-3 complex.In the same samples TNF-αexpression was also evaluated as major factor of the pro-inflammatory activity.RESULTS In this work we studied indirectly the phosphorylation of TTP through the binding with the chaperone protein 14-3-3.In inflamed and non-inflamed colon mucosa of IBD paediatric patients immunoblot assay demonstrated a higher expression of the TTP in inflamed samples respect to the non-inflamed;the coimmunoprecipitated 14-3-3 protein showed the same trend of expression.In the TNF-αgene expression analysis higher levels of the cytokine in inflamed tissues compared to controls were evident.The same experiments were conducted on macrophages from IBD paediatric patients and healthy controls.The immunoblot results demonstrated a high expression of both TTP and co-immunoprecipitated 14-4-3 protein in IBD-derived macrophages in comparison to healthy donors.TNF-αprotein levels from macrophages lysates showed the same trend of expression in favour of IBD paediatric patients compared to healthy controls.CONCLUSION In this work,for the first time,we describe a relation between phospho-TTP/14-3-3 complex and IBD.Indeed,a higher expression of TTP/14-3-3 was recorded in IBD samples in comparison to controls. | Alessia Di Silvestre Marianna Lucafo Letizia Pugnetti Matteo Bramuzzo Gabriele Stocco Egidio Barbi Giuliana Decorti | 2019 | World Journal of Gastroenterology2019，25，39： | 1 |
| 3 | Pediatric stricturing Crohn's disease显示文摘Crohn’s disease(CD)is a chronic inflammatory disease of the digestive tract.The incidence of pediatric CD is increasing and is currently 2.5-11.4 per 100000 world-wide.Notably,approximately 25%of children with CD develop stricturing CD(SCD)that requires intervention.Symptomatic stricturing diseases refractory to pharmacological management frequently require non-pharmacological interventions.Non-pharmacological therapeutic strategies include endoscopic balloon dilatation,stricturoplasty,and surgical resection of the strictured seg-ment.However,strictures tend to recur postoperatively regardless of treatment modality.The lifetime risk of surgery in patients with childhood SCD remains at 50%-90%.Thus,new and emerging strategies,advanced diagnostic tools,and minimally invasive approaches are under investigation to improve the outcomes and overall quality of life of pediatric patients with SCD. | Alessandro Boscarelli Matteo Bramuzzo | 2024 | World Journal of Gastroenterology2024，30，12： | 0 |
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