Project description:Mechanical bowel preparation for left-sided colorectal surgery remains standard in most cases. However, there are some discrepancies on how to prepare the bowl, while rectal enema and oral agents are both available methods.
The knowledge of intestinal microbiome role on surgical outcomes is increasing, since few recent reports linked microbiome composition to postoperative complications, such as anastomotic insufficiency. Although, it is not clear how the bowel preparation affects the gut microbiome. Therefore, different bowel preparation techniques impact on gut microbiome will be studied.
Project description:The mucosal penetration area formed by implant placement is critical problems of dental implant treatment, because epithelial barrier is broken and it can become a source of inflammation. To clarify the influence and risk caused by dental implant treatment in peri-implant soft tissue, we compared to gene expression profile of peri-implant soft tissue and oral mucosal tissue with microarray analysis. Both side upper first molars of 4 week-old rat were extracted, and titanium alloy implants were placed only in the left extraction socket. Four weeks after surgery, samples were harvested from left side of peri-implant soft tissue and right side of oral mucosal tissue.
Project description:This study aims to demonstrate that a preoperative combination of mechanical bowel preparation and oral antibiotics, before elective laparoscopic colon cancer surgery, is associated with a reduction of postoperative surgical site infection rate, as compared to mechanical bowel preparation alone, oral antibiotics alone, or no colonic preparation.
Our Hypothesis is that a preoperative colonic preparation including a combination of mechanical bowel preparation and oral antibiotics before elective laparoscopic colon cancer surgery is associated with a reduced rate of 30-day postoperative surgical site infection, as compared to mechanical bowel preparation alone, oral antibiotics alone, or no colonic preparation.
Project description:We have employed miRNA microarray expression profiling to identify miRNA differentially expressed in neonatal bowel tissues with different gastrointestinal conditions. Bowel tissues were collected from infants who underwent surgery treatment for necrotizing enterocolitis (NEC), spontaneous intestinal perforation (SIP). Infants with other non-inflammatory, congenital intestinal conditions were employed as the Surgical-Control. Differential miRNA microarray analysis was performed.
Project description:Identification of significant regulated genes in the intestinal epithelium (ileum and colon) <br>in patients suffering from inflammatory bowel disease (normal vs. activ and non-activ <br>Crohn's disease and Ulcerative Colitis). This experiment is an extension of experiment E-MEXP-1225. We added 12 new hybridizations prepared according to amplification, hybridization and normalization protocols described in E-MEXP-1225.
Project description:We have employed whole genome microarray expression profiling to identify genes differentially expressed in neonatal bowel tissues of different gastrointestinal conditions. Bowel tissues were collected from infants who underwent surgery treatment for necrotising enterocolitis (NEC) and spontaneous intestinal perforation (SIP). Infants with other non-inflammatory, congenital intestinal conditions were employed as the Surgical-Control. Differential whole genome microarray analysis was performed.
Project description:PL8177 is a potent and selective agonist of the melanocortin 1 receptor (MC1R). PL8177 has shown efficacy in reversing intestinal inflammation in a cannulated rat ulcerative colitis model. To facilitate oral delivery, a novel, polymer-encapsulated formulation of PL8177 was developed and tested in dextran sulfate sodium induced rat ulcerative colitis model. Rats treated with 50 µg oral PL8177 demonstrated significantly lower macroscopic colon damage scores and improvement in colon weight, stool consistency, and fecal occult blood vs the vehicle without active drug. We used single nuclei RNA sequencing of colon tissues to characterize the mechanism of action and identify relative cell population and key gene expression changes between treated, healthy and vehicle.
