scholarly journals The New Salicylate Derivative UR-1505 Modulates the Th2/Humoral Response in a Dextran Sodium Sulphate Model of Colitis That Resembles Ulcerative Colitis

2009 ◽  
Vol 109 (2) ◽  
pp. 315-318 ◽  
Author(s):  
Elvira Bailón ◽  
Juan Román ◽  
Isabel Ramis ◽  
Pedro Michelena ◽  
Dolors Balsa ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Humoral Response ◽  
Sodium Sulphate ◽  
Dextran Sodium Sulphate

scholarly journals Innovative Animal Model of DSS-Induced Ulcerative Colitis in Pseudo Germ-Free Mice

Cells ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2571
Author(s):  
Sona Gancarcikova ◽  
Stanislav Lauko ◽  
Gabriela Hrckova ◽  
Zuzana Andrejcakova ◽  
Vanda Hajduckova ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Animal Model ◽  
Cellular Proliferation ◽  
Sodium Sulphate ◽  
Mucosal Barrier ◽  
Pathogenic Microorganisms ◽  
Dextran Sodium Sulphate ◽  
Germ Free ◽  
Proliferation And Apoptosis ◽  
Selective Antibiotics

The aim of this study was to investigate the use of a standardized animal model subjected to antibiotic treatment, and the effects of this treatment on the course of dextran sodium sulphate (DSS)-induced colitis in mice. By decontamination with selective antibiotics and observation of pathogenesis of ulcerative colitis (UC) induced chemically by exposure of mice to various concentrations of DSS, we obtained an optimum animal PGF model of acute UC manifested by mucin depletion, epithelial degeneration and necrosis, leading to the disappearance of epithelial cells, infiltration of lamina propria and submucosa with neutrophils, cryptitis, and accompanied by decreased viability of intestinal microbiota, loss of body weight, dehydration, moderate rectal bleeding, and a decrease in the selected markers of cellular proliferation and apoptosis. The obtained PGF model did not exhibit changes that could contribute to inflammation by means of alteration of the metabolic status and the induced dysbiosis did not serve as a bearer of pathogenic microorganisms participating in development of ulcerative colitis. The inflammatory process was induced particularly by exposure to DSS and its toxic action on compactness and integrity of mucosal barrier in the large intestine. This offers new possibilities of the use of this animal model in studies with or without participation of pathogenic microbiota in IBD pathogenesis.

scholarly journals Titanium Dioxide Presents a Different Profile in Dextran Sodium Sulphate-Induced Experimental Colitis in Mice Lacking the IBD Risk Gene Ptpn2 in Myeloid Cells

2021 ◽  
Vol 22 (2) ◽  
pp. 772
Author(s):  
Javier Conde ◽  
Marlene Schwarzfischer ◽  
Egle Katkeviciute ◽  
Janine Häfliger ◽  
Anna Niechcial ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Titanium Dioxide ◽  
Genetic Risk ◽  
Intestinal Inflammation ◽  
Sodium Sulphate ◽  
Food Additive ◽  
Wild Type ◽  
Dextran Sodium Sulphate ◽  
Risk Gene ◽  
The Impact

Environmental and genetic factors have been demonstrated to contribute to the development of inflammatory bowel disease (IBD). Recent studies suggested that the food additive; titanium dioxide (TiO2) might play a causative role in the disease. Therefore, in the present study we aimed to explore the interaction between the food additive TiO2 and the well-characterized IBD risk gene protein tyrosine phosphatase non-receptor type 2 (Ptpn2) and their role in the development of intestinal inflammation. Dextran sodium sulphate (DSS)-induced acute colitis was performed in mice lacking the expression of Ptpn2 in myeloid cells (Ptpn2LysMCre) or their wild type littermates (Ptpn2fl/fl) and exposed to the microparticle TiO2. The impact of Ptpn2 on TiO2 signalling pathways and TiO2-induced IL-1β and IL-10 levels were studied using bone marrow-derived macrophages (BMDMs). Ptpn2LysMCre exposed to TiO2 exhibited more severe intestinal inflammation than their wild type counterparts. This effect was likely due to the impact of TiO2 on the differentiation of intestinal macrophages, suppressing the number of anti-inflammatory macrophages in Ptpn2 deficient mice. Moreover, we also found that TiO2 was able to induce the secretion of IL-1β via mitogen-activated proteins kinases (MAPKs) and to repress the expression of IL-10 in bone marrow-derived macrophages via MAPK-independent pathways. This is the first evidence of the cooperation between the genetic risk factor Ptpn2 and the environmental factor TiO2 in the regulation of intestinal inflammation. The results presented here suggest that the ingestion of certain industrial compounds should be taken into account, especially in individuals with increased genetic risk

scholarly journals Orally administered RDP58 reduces the severity of dextran sodium sulphate induced colitis

2002 ◽  
Vol 61 (Supplement 2) ◽  
pp. 19ii-24 ◽  
Author(s):  
R Boismenu ◽  
Y Chen ◽  
K Chou ◽  
A El-Sheikh ◽  
R Buelow
Keyword(s):  
Sodium Sulphate ◽  
Dextran Sodium Sulphate

scholarly journals Ablation of ceramide synthase 2 exacerbates dextran sodium sulphate-induced colitis in mice due to increased intestinal permeability

2017 ◽  
Vol 21 (12) ◽  
pp. 3565-3578 ◽  
Author(s):  
Ye-Ryung Kim ◽  
Giora Volpert ◽  
Kyong-Oh Shin ◽  
So-Yeon Kim ◽  
Sun-Hye Shin ◽  
...  
Keyword(s):  
Intestinal Permeability ◽  
Sodium Sulphate ◽  
Ceramide Synthase ◽  
Dextran Sodium Sulphate

POTENTIAL OF ETHANOL EXTRACT OF MAHKOTA DEWA LEAVES (PHALERIA MACROCARPA (SCHECFF.) BOERL.) TO INHIBIT INFLAMMATION IN MOUSE DISTAL COLON INDUCED BY DEXTRAN SODIUM SULFATE (DSS) AND AZOXYMETHANE (AOM)

2020 ◽  
pp. 101-105
Author(s):  
MUHAMMAD ILHAM DHIYA RAKASIWI ◽  
KUSMARDI KUSMARDI ◽  
ARI ESTUNINGTYAS ◽  
ARYO TEDJO
Keyword(s):  
Leaf Extract ◽  
Histopathological Examination ◽  
Ethanol Extract ◽  
Distal Colon ◽  
Goblet Cells ◽  
Sodium Sulphate ◽  
Dextran Sodium Sulphate ◽  
Phaleria Macrocarpa ◽  
Hematoxylin Eosin

Objective: To demonstrates the ability of P. macrocarpa leaf extract to reduce inflammation of the distal colon in DSS/AOM-induced mice. Methods: In vivo experimental research using Balb/c mice induced by 0.2 ml azoxymethane (AOM) 0.1% once and 1% dextran sodium sulphate (DSS) for one week; additionally, ethanol extract of P. macrocarpa leaves, 25 mg and 50 mg, and 0.84 mg acetosal were given orally. The mice were sacrificed after 20 w. Histopathological examination (hematoxylin-eosin staining) was conducted by counting the average number of goblet cells per crypt, inflammatory focus and angiogenesis. Results: Ethanol extract of P. macrocarpa leaves was able to prevent the decrease in the number of goblet cells (p<0.05). However, the administration of ethanol P. macrocarpa leaf extract could not reduce focal inflammation and angiogenesis in inflammation of the distal colon. Conclusion: Ethanol extract of the Mahkota Dewa leaves is able to prevent inflammation of the distal colon by preventing the decrease in the number of goblet cells.

Intestinal anti-inflammatory effects of Passiflora edulis peel in the dextran sodium sulphate model of mouse colitis

2016 ◽  
Vol 26 ◽  
pp. 565-576 ◽  
Author(s):  
Cinthia Baú Betim Cazarin ◽  
Alba Rodriguez-Nogales ◽  
Francesca Algieri ◽  
M. Pilar Utrilla ◽  
M. Elena Rodríguez-Cabezas ◽  
...  
Keyword(s):  
Sodium Sulphate ◽  
Dextran Sodium Sulphate ◽  
Passiflora Edulis ◽  
Anti Inflammatory
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