The invention discloses an inflammatory bowel disease model, a construction method and application thereof and a drug evaluation method based on the inflammatory bowel disease model, and belongs to the technical field of inflammatory bowel disease model construction. A highly bionic intestinal crypt-villus three-dimensional structure is formed based on self-organization of an intestinal cell line C2BBe1, the intestinal crypt-villus three-dimensional structure and a DMEM complete medium containing dextransulfatesodium are added into an upper chamber of a double-layer culture chamber Transwell, the DMEM complete medium is added into a lower chamber of the double-layer culture chamber Transwell, culture is performed for 2 days, and the inflammatory bowel disease model is obtained. The method takes effect quickly and is highly simulated, the obtained model can simulate the space-time dynamic development process of intestinal inflammation molecular characteristics, and the natural recovery model and the drug treatment model constructed based on the model can provide a brand new platform for researching an inflammation regression mechanism and a drugintervention effect.
The invention discloses an attenuated artificial bear gallpowder nano preparation, the physical structure of which is a core-shell structure, the core is zincoxide nanoparticles, the shell is mesoporous SiO2, and artificial bear gallpowder is attached to the outer surface of the shell, through the design of the core-shell structure, the dissolution of zinc ions can be reduced while efficient loading and pH response release of the artificial bear gallpowder can be realized, and the toxicity of the artificial bear gall powder can be reduced. The toxicity of the preparation is reduced; the invention further discloses a preparation method which has the characteristics of simple steps, low cost and suitability for industrial production. The invention further discloses a novel application range, namely, the compound has a wide clinical application prospect in the fields of inflammatory bowel diseases and the like needing targeted anti-inflammatory treatment.
The invention discloses a mucosal epithelial cell targeted oral ROS response type nano-enzyme as well as a preparation method and application thereof, and relates to the technical field of biological medicines. The oral ROS response type nano-enzyme comprises Ce-CDs carbon dots and a betainepolymer, and the betainepolymer is coated on the surfaces of the Ce-CDs carbon dots to form nano-particles; the Ce-CCDs carbon dots are prepared by taking a metalcerium source and chlorogenic acid as raw materials through a pyrolysis method. Through structural innovation and function integration, the prepared nano-enzyme shows outstanding advantages in the aspects of catalytic activity, targeted delivery, collaborative treatment, industrial application and the like, a new technical scheme is provided for efficient and safe treatment of inflammatory bowel diseases, and the nano-enzyme has remarkable technical innovation and clinical application value.
A Bifidobacterium longum subsp. infantis YLGB-1496 postbiotic product, a bacteriocin, a preparation method, and a use, specifically relating to the technical field of probiotic postbiotics. The provided probiotic postbiotic product has the following biological functions: enhancing the intestinal barrier function, preventing and / or treating inflammatory bowel diseases, regulating gut flora, relieving intestinal flatulence and resisting oxidation, and has application prospects in preparing health-care foods or drugs for regulating gut flora and resisting oxidation.
The invention discloses a follow-up visit management system for an inflammatory bowel disease patient, and relates to the technical field of medical management. Comprising a patient management module which is in dynamic butt joint with a hospital information system, synchronizes patient data and endoscopic examination results in real time through an HL7 protocol, and establishes an electronic file containing an inflammatory bowel disease specificity tag; the diagnosis and treatment result module is used for storing structured data with temporal markers, including medication time sequences recorded by three groups of timestamps, administration routes and drug categories, auxiliary examination results accompanied with digestive tractpathological section images and hidden space feature vectors extracted from the images through a convolutional neural network; and the diet module is used for carrying out multi-level classification on diet photos uploaded by the patient through an image recognition unit based on MobileNetV3, and outputting food types and intake estimated values. According to the invention, by integrating the multi-dimensional data of the patient, the disease development trend is predicted, and personalized follow-up visit management is provided.
The invention discloses a bacterial cluster motion single image detection method and system based on deep learning, and the method and system are used for quickly and automatically distinguishing the states of cluster motion, swimming and the like of bacteria. According to the method, high-precision classification is realized by acquiring a long-exposure single blurred image of bacteria in a circular limited space and extracting spatial-temporal characteristics by using a dense connected neural network (DenseNet) with an attention module. The kit is suitable for a high-throughput environment, can be integrated into portable equipment, and is used for early diagnosis and treatment evaluation of diseases such as urinary system infection (UTI) and inflammatory bowel disease (IBD).
The invention discloses lactobacillus kefiranofaciens and application thereof, and belongs to the technical field of microorganisms. The strain number of the lactobacillus kefiranofaciens is 2503, the lactobacillus kefiranofaciens is preserved in the general microbiological center of the China Committee for Culture Collection of Microorganisms, and the preservation number of the lactobacillus kefiranofaciens is CGMCC NO.33828. The lactobacillus kefiranofaciens is named as Lactobacillus kefiranofaciens. The lactobacillus kefiranofaciens provided by the invention is strong in acid resistance and bile salt resistance, has the functions of resisting oxidation and scavenging free radicals, can be planted in intestinal tracts, improves the abundance of beneficial bacteria in the intestinal tracts and reduces the abundance of pathogenic bacteria, and has good prevention and treatment effects on inflammatory bowel diseases.
The invention discloses lactobacillus rhamnosus 1.0320, a metagen as well as a preparation method and application of the lactobacillus rhamnosus 1.0320 and the metagen, and belongs to the technical field of microorganisms. The invention provides lactobacillus rhamnosus 1.0320. The lactobacillus rhamnosus 1.0320 is preserved in the general microbiological center of the China Committee for Culture Collection of Microorganisms on April 8, 2018, and the preservation number of the lactobacillus rhamnosus 1.0320 is CGMCC (China General Microbiological Culture Collection Center) NO.15557. The lactobacillus rhamnosus 1.0320 can be used for preparing the lactobacillus rhamnosus 1.0320. The lactobacillus rhamnosus 1.0320 and the metagen thereof provided by the invention have the effects of improving the intestinal barrier and relieving the inflammatory bowel disease.
The invention relates to a polypeptide capable of promoting tuft cell proliferation and application of the polypeptide in treatment of inflammatory bowel diseases, in particular to a polypeptide Sjp40-73 derived from schistosome egg protein, and the amino acid sequence of the polypeptide Sjp40-73 is SEQ ID NO.1. The invention further relates to a preparation method of the polypeptide Sjp40-73. The polypeptide can be obtained through methods such as genetic engineering expression or chemical synthesis. In-vitro experiments prove that the peptide can effectively increase the number of tuft cells of intestinal organs of mice; in-vivo experiments further prove that the peptide can relieve mouse inflammatory bowel diseases and can improve corresponding inflammations. The polypeptide prepared by the invention can be applied to medicines, health-care products or food additives for preventing and treating inflammatory enteritis.
A method for improving gut microbiota population in a subject by administering a composition comprising allulose, erythritol or a combination thereof. A method for increasing one or more colonic bacterial populations from the families Lachnospiraceae or Eubacteriaceae by administering a composition comprising allulose, erythritol or a combination thereof. A method for preventing, treating or ameliorating a disease in a subject by administering a composition comprising allulose, erythritol or a combination thereof. The disease may be one or more of metabolic syndrome, obesity, type 2 diabetes, insulin resistance, hyperlipoproteinemia, hyperuricemia, hepatic steatosis, hypercholesterolemia, hypertriglyceridemia, irritable bowel syndrome (IBS), colon cancer, allergy, non-alcoholic fatty liverdisease, inflammatory bowel disease, cardiovascular disease, or inflammation. The bacterial population may be the species Anaerostipes hadrus, Blautia obeum, Anaerobutyricum hallii, Eubacterium rectale (Agathobacter rectalis), Eubacterium callanderi, Eubacterium limosum and Eubacterium maltosivorans. A composition comprising allulose, erythritol or a combination thereof and one or more colonic bacterial populations from the families Lachnospiraceae or Eubacteriaceae is also provided. The composition may in the form of a food composition.
The present invention provides a pharmaceutical composition having an effective dose of a compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof for treating inflammatory bowel disease. Disclosed is a pharmaceutical composition for treating inflammatory bowel disease, which comprises a compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof, where the compound or the pharmaceutically acceptable salt thereof is administered to a human at a dose of 50 mg or more per day as an active ingredient, where R represents a hydroxyl group or an isobutoxy group.