1.Research Progress on Paradoxical Extraintestinal Manifestations of Biologics in the Treatment of Inflammatory Bowel Disease
Zhangqin LI ; Qi HUANG ; Yinglei MIAO
Journal of Kunming Medical University 2024;45(2):160-165
		                        		
		                        			
		                        			Inflammatory Bowel Diseases(IBD)is a class of genetically related diseases caused by multiple genes and environmental factors that accelerate the disturbance of the immune-gut-microbiome axis.Lesions often involve multiple organs and systems.Biological agents are an important means of treating IBD and its extraintestinal manifestations.Current studies suggest that biologics can bring benefits to patients,but paradoxical skin lesions,joint lesions,and ocular lesions appear during the treatment.Diseases,pulmonary lesions and other manifestations or lesions are easily ignored in clinical practice,thereby delaying the patient's condition and affecting the patient's quality of life.Therefore,by summarizing the clinical characteristics and diagnosis and treatment experience of contradictory extraintestinal manifestations in the current application of biological agents,this review aims to improve the understanding of clinicians,identify this clinical manifestation early,and avoid delaying the patient's condition.
		                        		
		                        		
		                        		
		                        	
2.A national questionnaire survey on endoscopic treatment for gastroesophageal varices in portal hypertension in China
Xing WANG ; Bing HU ; Yiling LI ; Zhijie FENG ; Yanjing GAO ; Zhining FAN ; Feng JI ; Bingrong LIU ; Jinhai WANG ; Wenhui ZHANG ; Tong DANG ; Hong XU ; Derun KONG ; Lili YUAN ; Liangbi XU ; Shengjuan HU ; Liangzhi WEN ; Ping YAO ; Yunxiao LIANG ; Xiaodong ZHOU ; Huiling XIANG ; Xiaowei LIU ; Xiaoquan HUANG ; Yinglei MIAO ; Xiaoliang ZHU ; De'an TIAN ; Feihu BAI ; Jitao SONG ; Ligang CHEN ; Yingcai MA ; Yifei HUANG ; Bin WU ; Xiaolong QI
Chinese Journal of Digestive Endoscopy 2024;41(1):43-51
		                        		
		                        			
		                        			Objective:To investigate the current status of endoscopic treatment for gastroesophageal varices in portal hypertension in China, and to provide supporting data and reference for the development of endoscopic treatment.Methods:In this study, initiated by the Liver Health Consortium in China (CHESS), a questionnaire was designed and distributed online to investigate the basic condition of endoscopic treatment for gastroesophageal varices in portal hypertension in 2022 in China. Questions included annual number and indication of endoscopic procedures, adherence to guideline for preventing esophagogastric variceal bleeding (EGVB), management and timing of emergent EGVB, management of gastric and isolated varices, and improvement of endoscopic treatment. Proportions of hospitals concerning therapeutic choices to all participant hospitals were calculated. Guideline adherence between secondary and tertiary hospitals were compared by using Chi-square test.Results:A total of 836 hospitals from 31 provinces (anotomous regions and municipalities) participated in the survey. According to the survey, the control of acute EGVB (49.3%, 412/836) and the prevention of recurrent bleeding (38.3%, 320/836) were major indications of endoscopic treatment. For primary [non-selective β-blocker (NSBB) or endoscopic therapies] and secondary prophylaxis (NSBB and endoscopic therapies) of EGVB, adherence to domestic guideline was 72.5% (606/836) and 39.2% (328/836), respectively. There were significant differences in the adherence between secondary and tertiary hospitals in primary prophylaxis of EGVB [71.0% (495/697) VS 79.9% (111/139), χ2=4.11, P=0.033] and secondary prophylaxis of EGVB [41.6% (290/697) VS 27.3% (38/139), χ2=9.31, P=0.002]. A total of 78.2% (654/836) hospitals preferred endoscopic therapies treating acute EGVB, and endoscopic therapy was more likely to be the first choice for treating acute EGVB in tertiary hospitals (82.6%, 576/697) than secondary hospitals [56.1% (78/139), χ2=46.33, P<0.001]. The optimal timing was usually within 12 hours (48.5%, 317/654) and 12-24 hours (36.9%, 241/654) after the bleeding. Regarding the management of gastroesophageal varices type 2 and isolated gastric varices type 1, most hospitals used cyanoacrylate injection in combination with sclerotherapy [48.2% (403/836) and 29.9% (250/836), respectively], but substantial proportions of hospitals preferred clip-assisted therapies [12.4% (104/836) and 26.4% (221/836), respectively]. Improving the skills of endoscopic doctors (84.2%, 704/836), and enhancing the precision of pre-procedure evaluation and quality of multidisciplinary team (78.9%, 660/836) were considered urgent needs in the development of endoscopic treatment. Conclusion:A variety of endoscopic treatments for gastroesophageal varices in portal hypertension are implemented nationwide. Participant hospitals are active to perform emergent endoscopy for acute EGVB, but are inadequate in following recommendations regarding primary and secondary prophylaxis of EGVB. Moreover, the selection of endoscopic procedures for gastric varices differs greatly among hospitals.
		                        		
		                        		
		                        		
		                        	
3.Influencing factors for chronic pancreatitis complicated by pancreatogenic portal hypertension and establishment of a predictive model
Jiani YANG ; Zhini MA ; Yingxia HU ; Zongshuai LI ; Yan LIU ; Hairong ZHANG ; Yinglei MIAO
Journal of Clinical Hepatology 2024;40(7):1438-1445
		                        		
		                        			
		                        			Objective To investigate the influencing factors for chronic pancreatitis(CP)complicated by pancreatogenic portal hypertension(PPH),and to establish a predictive model.Methods A retrospective analysis was performed for the clinical data of 99 patients with CP complicated by PPH who were hospitalized in The First Affiliated Hospital of Kunming Medical University,Chuxiong Yi Autonomous Prefecture People's Hospital,Wenshan People's Hospital,and Puer People's Hospital from January 2017 to December 2022,and these patients were enrolled as PPH group.The incidence density sampling method was used to select 198 CP patients from databases as control group.The independent-samples t test was used for comparison of normally distributed continuous data between two groups,and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups;the chi-square test or the Fisher's exact test was used for comparison of categorical data between two groups.The Least Absolute Shrinkage and Selection Operator(LASSO)regression model was used to identify the potential predictive factors for CP complicated by PPH,and the predictive factors obtained were included in the multivariate Logistic regression analysis to obtain independent risk factors,which were used to establish a nomogram prediction model.The receiver operating characteristic(ROC)curve,the calibration curve,and the Hosmer-Lemeshow goodness-of-fit test were used to perform internal validation of the model,and the clinical decision curve was used to assess the clinical practicability of the model.Results There were significant differences between the two groups in sex,history of recurrent acute pancreatitis attacks,acute exacerbation of CP,bile duct stones,peripancreatic fluid accumulation,pseudocysts,pulmonary infection,elevated C-reactive protein(CRP),elevated procalcitonin,fibrinogen(FIB),neutrophil-lymphocyte ratio(NLR),gamma-glutamyl transpeptidase,total bilirubin,direct bilirubin,low-density lipoprotein(LDL),serum amylase,D-dimer,and serum albumin(all P<0.05).The predictive variables obtained by the LASSO regression analysis included sex,recurrent acute pancreatitis attacks,bile duct stones,peripancreatic fluid accumulation,pulmonary infection,pseudocysts,CRP,NLR,FIB,and LDL.The multivariate Logistic regression analysis showed that sex(odds ratio[OR]=2.716,P<0.05),recurrent acute pancreatitis attacks(OR=2.138,P<0.05),peripancreatic fluid accumulation(OR=2.297,P<0.05),pseudocysts(OR=2.805,P<0.05),and FIB(OR=1.313,P<0.05)were independent risk factors for CP complicated by PPH.The above factors were fitted into the model,and the Bootstrap internal validation showed that the nomogram model had an area under the ROC curve of 0.787(95%confidence interval:0.730—0.844),and the calibration curve was close to the reference curve.The Hosmer-Lemeshow goodness-of-fit test showed that the model had a good degree of fitting(χ2=7.469,P=0.487).The clinical decision curve analysis showed that the prediction model had good clinical practicability.Conclusion Male sex,recurrent acute pancreatitis attacks,peripancreatic fluid accumulation,pseudocysts,and FIB are independent risk factors for CP complicated by PPH,and the nomogram model established has good discriminatory ability,calibration,and clinical practicability.
		                        		
		                        		
		                        		
		                        	
4.Establishment of small intestinal organoid models in a novel culture system
Bian WU ; Guili LIANG ; Chengfeng XING ; Zaozao WU ; Junmo WU ; Yu KANG ; Yinglei MIAO ; Danfeng LAN
Chinese Journal of Digestion 2023;43(11):764-770
		                        		
		                        			
		                        			Objective:To establish a new type of small intestinal organoids with injury-related regenerative capacity, and to simulate the process of intestinal injury, regeneration, and repair in vitro. Methods:The crypt structures of ileal mucosa from 6 to 8 weeks old, 18 to 24 g specific pathogen-free C57BL/6 mice were isolated. The ENR, ENR+ tumor necrosis factor-α(TNF-α) and 8C culture systems were designed to establish small intestinal organoids under conditions of intestinal homeostasis, inflammatory injury and injury-related regeneration, and the morphology of intestinal organoids were observed. The cell types and spatial arrangements of intestinal organoids, and the expression of genes clusterin( Clu), annexin A1( Anxa1), stem cell antigen-1( Sca1) and regenerating islet-derived protein 3-beta( Reg3 b) at protein levels were detected by immunofluorescence staining. The expression of genes Clu, Anxa1, Sca1 and Reg3 b at mRNA levels were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Independent sample- t test was used for statistical analysis. Results:In ENR and 8C culture system, both intestinal organoids contained intestinal stem cells, goblet cells, Paneth cells and intestinal endocrine cells, and the spatial arrangement of cells was similar to the intestinal epithelium. In the 8C culture system, the amplification capacity of the new small intestinal organoids was significantly enhanced, the growth rate was faster, and the structure was larger and more complex than those of small intestinal organoids in ENR and ENR+ TNF-α culture systems. The results of qRT-PCR showed that, the relative mRNA expression levels of novel small intestinal organoid regeneration genes Clu, Anxa1, and Sca1 in the 8C culture system were higher than those in the ENR and ENR+ TNF-α culture systems (0.68±0.31 vs.0.20±0.07 and 0.36±0.19, 0.48±0.13 vs. 0.07±0.02 and 0.18±0.11, 0.56±0.20 vs. 0.02±0.01 and 0.08±0.04), and the differences were statistically significant ( t=4.82 and 2.77, 8.62 and 4.89, and 8.58 and 7.50; all P<0.05). The results of immunofluorescence staining indicated that, the expression levels of novel small intestinal organoid regeneration genes Clu, Anxa1, Sca1 and Reg3 b at protein level in the 8C culture system were higher than those in the ENR and ENR+ TNF-α culture systems (31.62±1.69 vs. 9.73±2.39 and 15.11±2.16, 42.65±1.85 vs. 19.70±1.18 and 24.97±2.82, 63.80±2.73 vs. 37.10±1.59 and 43.27±2.53, 53.26±1.84 vs. 27.75±3.78 and 33.16±3.50), and the differences were statistically significant( t=12.95 and 10.41, 18.13 and 9.09, 14.63 and 9.56, and 10.51 and 8.80; all P<0.001). Conclusion:The small intestinal organoids established in the novel culture system have the characteristics of injury-related regeneration, and provide a novel in vitro model for studying the regeneration of epithelial tissues and organs.
		                        		
		                        		
		                        		
		                        	
5. Bidirectional Relationship Between Inflammatory Bowel Disease and Physical Activity
Chinese Journal of Gastroenterology 2022;27(11):696-699
		                        		
		                        			
		                        			 There is a bidirectional relationship between patients with inflammatory bowel disease (IBD) and physical activity. Physical activity may be associated with a reduced risk of IBD, especially Crohn’s disease. Long⁃term prolongation and recurrence of IBD not only affect the quality of life of patients, but also make many patients ignore the impact of exercise on IBD. Moderate exercise can reduce the level of proinflammatory factors in IBD patients, which can play an anti⁃inflammatory role, but acute high⁃intensity exercise may cause a local inflammatory response. IBD symptoms, especially active symptoms, can impair the ability to exercise and participate in physical activity. Exercise may worsen the symptoms such as fatigue, abdominal pain, diarrhea, and urgency of bowel movements in patients with active IBD. This review presented the level of physical activity in adults with IBD, summarized the evidence for benefits of physical activity for IBD and the challenges faced by patients with IBD in physical activity, and provided recommendations for physical activity in patients with IBD based on the latest evidence, so as to provide references for further research in this area. 
		                        		
		                        		
		                        		
		                        	
6. Two-way Relationship Between Inflammatory Bowel Disease and Sleep Disorder
Chinese Journal of Gastroenterology 2022;27(10):637-640
		                        		
		                        			
		                        			 Inflammatory bowel disease (IBD) is an idiopathic inflammatory disease of gastrointestinal tract, which mainly includes Crohn’s disease (CD) and ulcerative colitis (UC). The existence of chronic diseases is an important influencing factor of sleep quality, and sleep quality is a key index to evaluate the quality of life. Sleep disorder can lead to fatigue, anxiety and stress. The incidence of sleep disorder in patients with active IBD is higher than that in remission IBD. When patients with IBD get worse, the sleep disorder is more serious, while sleep disorder can aggravate intestinal inflammation and injury recovery. This article summarized the research on the correlation between sleep disorder and IBD, and clarified their two - way interaction, so as to provide reference for the clinical management and treatment of sleep disorder associated with IBD. 
		                        		
		                        		
		                        		
		                        	
7. Fecal Microbiota Transplantation for Treatment of Inflammatory Bowel Disease: From Immune Response to Mechanism
Xiaocui CHEN ; Yang SUN ; Yinglei MIAO
Chinese Journal of Gastroenterology 2021;26(6):358-362
		                        		
		                        			
		                        			 Inflammatory bowel disease (IBD) is a chronic, recurrent, nonspecific inflammatory disease of gastrointestinal tract, and includes ulcerative colitis (UC) and Crohn's disease (CD). Many studies have shown that gut microbiota and its mediated immune responses are the key factors driving the development of IBD. Fecal microbiota transplantation (FMT) is widely recognized as a new and potentially effective method for the treatment of IBD, but the mechanism is unclear. This article reviewed the current application of FMT in IBD, the immune response and the microbiota-immune interaction mechanism after FMT for the treatment of IBD, so as to discuss the potential mechanism of FMT in IBD. 
		                        		
		                        		
		                        		
		                        	
9.Effect of multi-channel health education model by professional team on self-management of patients with inflammatory bowel disease
Xiaolin LIU ; Junkun NIU ; Jing WU ; Shu′an LI ; Yinglei MIAO
Chinese Journal of Digestion 2021;41(2):112-117
		                        		
		                        			
		                        			Objective:To explore the effect of multi-channel health education model by professional team on drug compliance, disease knowledge and recurrence in rate of inflammatory bowel disease (IBD) patients, so as to provide basis for formulating scientific health education measures.Methods:From February 2016 to February 2019, IBD patients visited First Affiliated Hospital of Kunming Medical University were selected. According to whether they received health education, the patients were divided into intervention group (100 cases) and control group (138 cases). Morisky medication adherence scale-8 (MMAS-8) and Chinese version of Crohn′s and colitis knowledge score (CCKNOW) were used to evaluate treatment compliance and disease knowledge. The score of MMAS-8, the proportion of poor drug compliance, CCKNOW score and recurrence rate at 48 weeks of follow-up were compared between the intervention group and control group. Two sample t test and chi-square test were used for statistical analysis. Results:The total scores of MMAS-8 and CCKNOW of the intervention group were both higher than those of the control group (5.58±1.96 vs. 4.47±1.44, 10.87±4.21 vs. 9.23±4.65), and the differences were statistically significant ( t=-5.06 and -2.79, both P<0.05). The proportion of patients with poor drug compliance and recurrence rate at 48 weeks of follow up of the intervention group were both lower than those of the control group (56.0%, 56/100 vs. 86.2%, 119/138; 20.0%, 20/100 vs. 31.9%, 44/138), and the differences were statistically significant ( χ2=38.18 and 4.17, both P<0.05). Conclusions:Multi-channel health education by professional team can effectively improve the drug compliance and disease knowledge in IBD patients, improve patient self-management ability, and reduce the recurrence rate.
		                        		
		                        		
		                        		
		                        	
10. Value of Colonoscopy and Endoscopic Ultrasonography in Diagnosis and Evaluation of Disease Severity of Inflammatory Bowel Disease
Jiarong MIAO ; Qiong NAN ; Yunling WEN ; Yunzhen ZHU ; Yinglei MIAO ; Zi LEI
Chinese Journal of Gastroenterology 2020;25(11):660-665
		                        		
		                        			
		                        			 Background: Endoscopic ultrasonography (EUS) can display the different layers and structures of the intestinal wall, however, its value in diagnosis and assessment of disease activity of inflammatory bowel disease (IBD) is still in exploration. Aims: To investigate the value of colonoscopy and EUS in diagnosis and evaluation of disease severity of IBD. Methods: A retrospective study was conducted in patients with active IBD admitted at the First Affiliated Hospital of Kunming Medical University from September 2017 to September 2019. The results and characteristics of colonoscopy and EUS were analyzed. Results: One hundred and five active IBD patients were enrolled, including 68 cases of ulcerative colitis (UC) and 37 cases of Crohn's disease (CD). Spearman correlation coefficient analysis revealed that the endoscopic score of UC (ulcerative colitis endoscopic index of severity, UCEIS) and CD (simple endoscopic score for Crohn's disease, SES-CD) were both positively correlated with the disease severity (r 
		                        		
		                        		
		                        		
		                        	
            
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