scholarly journals Different Mechanism and Efficacy of Dextran-Sodium Sulfate and 2,4,6-Trinitrobenzene Sulphonic Acid in Modeling Ulcerative Colitis in C57BL/6 Mice

2021 ◽  
Author(s):  
Qiaobo YE ◽  
Zhen YE ◽  
Mingquan WU ◽  
Kaihua QIN ◽  
Fating LU ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Chronic Ulcerative Colitis ◽  
Sodium Sulfate ◽  
Activity Index ◽  
Disease Activity Index ◽  
Dextran Sodium Sulfate ◽  
Sulphonic Acid ◽  
Enzyme Linked Immunosorbent Assay ◽  
Mrna Levels ◽  
Trinitrobenzene Sulphonic Acid

Abstract Background and Aims: Dextran-sodium sulfate and 2,4,6-trinitrobenzene sulphonic acid are common modeling methods in studying ulcerative colitis. Little attention has been paid to the mechanism differences between the two approaches. Here, we aim to compare the mechanisms and efficacy of these two models and wish to provide fundamental proves for choosing ideal ulcerative colitis models. Methods: Dextran-sodium sulfate and 2,4,6-trinitrobenzene sulphonic acid were applied to induce the colitis in C57BL/6 mice for seven days. Body weight and disease activity index were assessed. Hematology was detected by routine blood test. Histopathology was analyzed by hematoxylin-eosin staining section. Enzyme-linked immunosorbent assay, Western blot and quantitative real-time PCR were used to detect the cytokines protein levels and mRNA levels. Flow cytometry were used to detect the cycles and subsets of splenic cells. Results: Dextran-sodium sulfate induced colitis in C57BL/6 mice showed higher acute immune activities, while 2,4,6-trinitrobenzene sulphonic acid induced colitis showed chronic immune activities with high platelet amounts and activation. Dextran-sodium sulfate is more suitable for modeling acute ulcerative colitis. On the contrary, 2,4,6-trinitrobenzene sulphonic acid is more appropriate for modeling chronic ulcerative colitis. Conclusions: Dextran-sodium sulfate treatment within 7 days in C57BL/6 mice is a suitable experimental model for studying human acute ulcerative colitis with immune response, fecal blood and acute pathogenic damage. Conversely, 2,4,6-trinitrobenzene sulphonic acid treatment within 7 days is more appropriate for studying human chronic ulcerative colitis with hypercoagulable state, IL-2 over-expression state and chronic pathogenic damage.

scholarly journals Anti-inflammatory Bifidobacterium strains prevent dextran sodium sulfate induced colitis and associated gut microbial dysbiosis in mice

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Shashank Singh ◽  
Ruchika Bhatia ◽  
Pragyanshu Khare ◽  
Shikha Sharma ◽  
Sivasubramanian Rajarammohan ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Sodium Sulfate ◽  
Activity Index ◽  
Disease Activity Index ◽  
Dextran Sodium Sulfate ◽  
Raw 264.7 Cells ◽  
Spleen Weight ◽  
Lipocalin 2 ◽  
Weight Percentage ◽  
Microbial Dysbiosis

Abstract Crohn’s and ulcerative colitis are common inflammatory conditions associated with Inflammatory bowel disease. Owing to the importance of diet based approaches for the prevention of inflammatory gut conditions, the present study was aimed to screen the human isolates of Bifidobacterium strains based on their ability to reduce LPS-induced inflammation in murine macrophage (RAW 264.7) cells and to evaluate prioritized strains for their preventive efficacy against ulcerative colitis in mice. Twelve out of 25 isolated strains reduced the production of LPS-induced nitric oxide and inflammatory cytokines. Furthermore, three strains, B. longum Bif10, B. breve Bif11, and B. longum Bif16 conferred protection against dextran sodium sulfate induced colitis in mice. The three strains prevented shortening of colon, spleen weight, percentage body weight change and disease activity index relative to colitis mice. Lower levels of Lipocalin-2, TNF-α, IL-1β and IL-6 and improved SCFA levels were observed in Bifidobacterium supplemented mice relative to DSS counterparts. Bacterial composition of B. longum Bif10 and B. breve Bif11 fed mice was partly similar to the normal mice, while DSS and B. longum Bif16 supplemented mice showed deleterious alterations. At the genus level, Bifidobacterium supplementation inhibited the abundances of pathobionts such as Haemophilus, Klebsiella and Lachnospira there by conferring protection.

scholarly journals Ethanol Extract ofCordyceps militarisGrown on Germinated Soybeans Attenuates Dextran-Sodium-Sulfate- (DSS-) Induced Colitis by Suppressing the Expression of Matrix Metalloproteinases and Inflammatory Mediators

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Dong Ki Park ◽  
Hye-Jin Park
Keyword(s):  
Matrix Metalloproteinases ◽  
Inflammatory Mediators ◽  
Sodium Sulfate ◽  
Activity Index ◽  
Disease Activity Index ◽  
Ethanol Extract ◽  
Treated Group ◽  
Dextran Sodium Sulfate ◽  
Protective Agent ◽  
Colon Tissue

The effect ofCordyceps militaris(CM) grown on germinated soybeans (GSC) in the inflammatory bowel disease (IBD) model was studied. To demonstrate the preventive effect of GSC extract in a dextran-sodium-sulfate- (DSS-) induced acute colitis mouse model, GSC was administered 2 days before DSS coadministration. GSC significantly suppressed DSS-induced disease activity index (DAI) as well as histopathological scores, compared to control or CM-treated group. To elucidate the anti-IBD activity of GSC, we checked the level of matrix metalloproteinases (MMPs) and inflammatory mediators. GSC extract decreased the level of MMP-3 and -9 mRNAs and p53 proteins. The level and activity of LPS-induced MMP-9 were reduced in GSC-treated RAW264.7 cells. It also attenuated the level of inducible nitric oxide synthase (iNOS) and tumor necrosis factor- (TNF-)αmRNAs both in colon tissue and in macrophage cells. These results suggest that GSC can be applied as a protective agent against IBDs.

scholarly journals The protective effect of curcumin on rats with DSS-induced ulcerative colitis and its mechanisms

2021 ◽  
Author(s):  
Jing Guo ◽  
Yan-yan Zhang ◽  
Mei Sun ◽  
Ling-fen Xu
Keyword(s):  
Ulcerative Colitis ◽  
Th17 Cells ◽  
Dextran Sulfate ◽  
Activity Index ◽  
Disease Activity Index ◽  
Treg Cells ◽  
Enzyme Linked Immunosorbent Assay ◽  
T Helper ◽  
T Helper 17 ◽  
Inflammatory Bowel

Abstract Aim This study aimed to explore effect of curcumin on inflammatory bowel disease (IBD) in rats and its mechanism.Methods: A dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) rat model was established. The disease activity index (DAI) scores were calculated. The histopathological damage scores were determined by haematoxylin-eosin (H&E) staining. Regulatory T (Treg) cells and T helper 17 (Th17) cells in the spleen were analysed by flow cytometry. The levels of interleukin (IL)-10 and IL-17A were determined by enzyme-linked immunosorbent assay (ELISA). Results: Compared with the DSS model group, the curcumin group exhibited significantly reduced DAI scores and improvements in histopathological damage. The expression of CD4+IL-17+ Th17 cells was significantly lower and the expression of CD4+CD25+Foxp3+ Treg cells was significantly higher in the curcumin group than in the DSS group.Conclusion: Curcumin may be a new and effective treatment for IBD by regulating the balance of Treg/Th17 cells and the expression of IL-10 and IL-17A.

scholarly journals Interleukin-10 is Differentially Expressed in the Small Intestine and the Colon Experiencing Chronic Inflammation and Ulcerative Colitis Induced by Dextran Sodium Sulfate in Young Pigs

2017 ◽  
pp. 147-162 ◽  
Author(s):  
D. LACKEYRAM ◽  
D. YOUNG ◽  
C. J. KIM ◽  
C. YANG ◽  
T. L. ARCHBOLD ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Chronic Inflammation ◽  
Chronic Ulcerative Colitis ◽  
Sodium Sulfate ◽  
Intestinal Inflammation ◽  
Interleukin 10 ◽  
Dextran Sodium Sulfate ◽  
Mrna Abundance ◽  
Control Group ◽  
Young Pigs

Intestinal inflammation induced with dextran sodium sulfate (DSS) is used to study acute or chronic ulcerative colitis in animal models. Decreased gut tissue anti-inflammatory cytokine IL-10 concentration and mRNA abundance are associated with the development of chronic bowel inflammation. Twelve piglets of 3 days old were fitted with an intragastric catheter and randomly allocated into control and DSS groups by administrating either sterile saline or 1.25 g of DSS/kg body weight (BW) in saline per day, respectively, for 10 days. Growth rate and food conversion efficiency were reduced (p<0.05) in the DSS piglets compared with the control group. Quantitative histopathological grading of inflammation in the jejunum and colon collectively showed that the DSS treatment resulted in 12 fold greater (p<0.05) inflammation severity scoring in the colon than in the jejunum, indicative of chronic ulcerative colitis in the colon. Upper gut permeability endpoint was 27.4 fold higher (p<0.05) in the DSS group compared with the control group. The DSS group had higher concentrations and mRNA abundances (p<0.05) of TNF- and IL-6 in the jejunal and colonic tissues compared with the control group. Colonic concentration and mRNA abundance of IL-10 were reduced (p<0.05), however, jejunal IL-10 mRNA abundance was increased (p<0.05) in the DSS group compared with the control group. In conclusion, administration of DSS at 1.25 g/kg BW for 10 days respectively induced acute inflammation in the jejunum and chronic inflammation and ulcerative colitis in the colon with substantially decreased colonic concentration and mRNA abundance of IL-10 in the young pigs, mimicking the IL-10 expression pattern in humans associated with chronic bowel inflammation.

scholarly journals Efficacy of standardized novel Boswellia serrata extract in the dextran sodium sulfate-induced colitis model - potential use in gut health management

2021 ◽  
Vol 10 (12) ◽  
pp. 1352
Author(s):  
Shefali Thanawala ◽  
Rajat Shah ◽  
Prasanna Katnapally ◽  
Upendra Bhatnagar
Keyword(s):  
Sodium Sulfate ◽  
Health Management ◽  
Reference Group ◽  
Histopathological Examination ◽  
Activity Index ◽  
Disease Activity Index ◽  
Dextran Sodium Sulfate ◽  
Distilled Water ◽  
Gut Health ◽  
Boswellia Serrata

Background: Objective of this study was to evaluate anti-inflammatory properties of a novel standardized Boswellia serrata extract–bsRx (developed using natural excipients and designed to have specific ratio of its major actives, viz. AKBA and BBA) in dextran sodium sulfate (DSS)-induced IBD model in BALB/c mice.Methods: Animals (BALB/c mice) in control (CL) group were administered vehicle; DSS-induced colitis group (DSS group), 2.5 % DSS; and Boswellia serrata group (BS group) received DSS, for inducing colitis, together with a novel standardized extract of Boswellia serrata (41 mg/kg, 4.1 mg/ml solution in distilled water) for 10 days. Reference group (SS group) received DSS with sulfasalazine (30 mg/kg, 3.0 mg/ml suspension in distilled water) for 10 days. Clinical assessment for disease activity index (DAI), histopathological examination and hematological assessments were performed.Results: Treatment with Boswellia serrata showed significant reduction in the DAI score on day 10 compared to the DSS group (2.49±0.93 versus 3.63±0.55, p≤0.05). Body weight (18.54±2.21 gm versus 17.05±3.53 gm) and colon length (6.8±0.9 cm versus 7.6±0.6 cm, p≤0.05) also improved in the BS group compared to DSS group, respectively. Histological scoring of colitis was lower in the BS group (10.1±1.37). There was no difference in leukotriene levels between groups (p>0.05).Conclusions: Treatment with novel Boswellia serrata extract improved colon length, DAI and histological scoring index in DSS-induced colitis in IBD mice models. Our results indicate the promising potential of novel Boswellia extract in IBD and gut health management.

scholarly journals Salvia miltiorrhiza Ameliorates Disease Progression in Dextran-Sodium-Sulfate Induced Colitis in Mice

2021 ◽  
Author(s):  
Juan Chen ◽  
Danyu Chen ◽  
Lu Cheng ◽  
YongKang Yang ◽  
Weidong Gu ◽  
...  
Keyword(s):  
Sodium Sulfate ◽  
Activity Index ◽  
Salvia Miltiorrhiza ◽  
Disease Activity Index ◽  
Cerebrovascular Diseases ◽  
Dextran Sodium Sulfate ◽  
Inflammatory Factors ◽  
Inflammatory Bowel ◽  
Anti Inflammatory ◽  
Inflammatory Effect

Abstract Salvia miltiorrhiza (SM, or Danshen) extract has been approved by China FDA for the treatment of cardiovascular and cerebrovascular diseases owing to its potent anti-inflammatory effects. Whether SM may be used to treat inflammatory bowel disease (IBD) remains elusive. In the current study, Dextran-Sodium-Sulfate (DSS) induced colitis in mice was used as a model of IBD, and SM was given orally for 7 days. SM administration has significantly reduced the disease activity index (DAI) score and weight lost and colon shortening in the DSS-induced colitis mice. The macrophage infiltration was significantly reduced in the SM treatment group. To explore the mechanisms, macrophage processor cell line Raw 264.7 was used to verify the anti-inflammatory effect of SM. SM treatment inhibited lipopolysaccharide (LPS)-induced macrophage activation in RAW264.7 cells and significantly reduced the production of pro-inflammatory factors. The current study provided evidence that oral administration of SM ameliorates pathological deterioration of IBD in mice, and warrants future clinical application of SM for the management of IBD.

scholarly journals Anti-Inflammatory Properties and Gut Microbiota Modulation of Porphyra tenera Extracts in Dextran Sodium Sulfate-Induced Colitis in Mice

Antioxidants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 988
Author(s):  
Jungman Kim ◽  
Jae Ho Choi ◽  
Gwangpyo Ko ◽  
Hyejun Jo ◽  
Taehwan Oh ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Sodium Sulfate ◽  
Activity Index ◽  
Glyoxylate Cycle ◽  
Disease Activity Index ◽  
Dextran Sodium Sulfate ◽  
Porphyra Tenera ◽  
Hepatoprotective Effects ◽  
Metabolic Activities ◽  
Anti Inflammation

Porphyra tenera (PT) is a functional seaweed food that has been reported for health benefits such as antioxidant, immunostimulant, anti-inflammation, and hepatoprotective effects. In this study, we investigated the effect of PT extracts on gut microbiota modulation in colitis-induced mice. The mice experiment was designed as three groups including normal mice (CTL), dextran sodium sulfate (DSS)-fed mice, and DSS plus PT extracts-fed mice (PTE). DSS was administrated through drinking water containing DSS for 1 week, and the PT extract was ingested into the gastrointestinal tract in mice. PT extract ameliorated the decreased body weight and colon length and improved disease activity index and pro-inflammatory cytokine expression. In addition, PT extract significantly shifted the gut microbiota of mice. DSS treatment significantly increased the portion of harmful bacteria (i.e., Helicobacter, Mucipirillum, and Parasutterella) and decreased the butyrate producing bacteria (i.e., Acetatifactor, Alistipes, Oscillibacter, and Clostridium_XIVb). PT extract increased the abundance of genera Clostridium_XIVb and also enriched some of predicted metabolic activities such as glyoxylate cycle, ethylmalonyl-CoA pathway, nitrate reduction, creatinine degradation, and glycine betaine metabolism. These results suggest that PT extract may ameliorate the DSS-induced colitis inflammation through regulating the compositions and functions of gut microbiota in mice.

Baicalin may alleviate inflammatory infiltration in dextran sodium sulfate-induced chronic ulcerative colitis via inhibiting IL-33 expression

Life Sciences ◽  
2017 ◽  
Vol 186 ◽  
pp. 125-132 ◽  
Author(s):  
Cheng-Liang Zhang ◽  
Si Zhang ◽  
Wen-Xi He ◽  
Jing-Li Lu ◽  
Yan-Jiao Xu ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Chronic Ulcerative Colitis ◽  
Sodium Sulfate ◽  
Dextran Sodium Sulfate ◽  
Inflammatory Infiltration
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