The present experiment was designed to develop colon specific drug delivery system of ketorolac tromethiamine (KT) for treatment of various colonic disorders. Matrix tablets were prepared by direct compression technique utilizing combination of guar gum with various types of biodegradable/pH dependent/hydrophilic retarders. Tablets evaluated for quality control tests and in-vitro liberation stu...

Aim: To evaluate the possible effects of red-ginseng on colon anastomosis healing in an experimental rat model.
 Methods: In Group 1 (sham), laparotomy and colonic mobilization were performed. Colonic transection performed to Groups 2 3. (control), ml saline was administered rectally all rats for 10 days. 3 (drug group) given 2.5 gr/kg red ginseng extract days.
 Results: The sham grou...

Mineralocorticoid receptor (MR)-deficient mice were generated by gene targeting. These animals had a normal prenatal development. During the first week of life, MR-deficient (-/-) mice developed symptoms of pseudohypoaldosteronism. They finally lost weight and eventually died at around day 10 after birth from dehydration by renal sodium and water loss. At day 8, -/- mice showed hyperkalemia, hy...

Present study was designed to minimize the drug release in upper gastro intestinal tract and target to colon by using the principles of compression coat. Compression coated tablets are prepared by direct compression method using guar gum alone (or) combination of guargum/metalose 90 SH polymers. Tablets are evaluated for their physicochemical properties and in vitro drug release studies. All th...

MicroRNAs (miRNAs) act as important post-transcriptional regulators of gene expression by targeting the 3'-untranslated region of their target genes. Altered expression of miR-16 is reported in human ulcerative colitis (UC), but its role in the development of the disease remains unclear. Adenosine through adenosine A2a receptor (A2aAR) could inhibit nuclear factor-kappaB (NF-κB) signaling pathw...

The present study aimed to develop and optimize liposome formulation for the colonic delivery of biologically active compounds. A strategy to facilitate such targeting is to formulate liposomes with a polymer coating sensitive to the pH shifts in the gastrointestinal tract. To this end, liposomes encapsulating curcumin-chosen as the biologically active compound model-and coated with the pH-resp...

Colonic motor function is modulated by extended and local neural reflexes involving unknown mediators. To test the role of serotonin (5-HT3) pathways, increases in colonic tone during antral distension and duodenal lipid perfusion (gastrocolonic responses) and changes in orad and caudad colonic tone in response to local colonic distension (peristaltic reflex) were measured after double-blind gr...

Management of inflammatory bowel disease (IBD) is a real clinical challenge. Despite intense investigation, the mechanisms of IBD remain substantially unidentified. Some inflammatory conditions, such as matrix metalloproteinases (MMPs) and the nuclear factor-κB (NF-κB) and NOD-like receptor protein 3 (NLRP3) inflammasome signaling pathways, are reported to contribute to the development and main...

Mucin 2 (MUC2) is the major secreted mucin of the large intestine and is expressed by adenomas and mucinous carcinomas. Since colon cancer is associated with a proinflammatory microenvironment and dysregulated MUC2 expression, the aim of this study was to characterize the effects of MUC2 gene expression in colon tumor progression using colonic cancer cells. CT26 colon cancer cells were stably t...

Drug targeting to the colon via the oral administration route for local treatment of e.g. inflammatory bowel disease and colonic cancer has several advantages such as needle-free administration and low infection risk. A new source for delivery is plant-polysaccharide based delivery platforms such as Rhamnogalacturonan-I (RG-I). In the gastro-intestinal tract the RG-I is only degraded by the act...