Effect of Escherichia Coli Infection on Metabolism of Dietary Protein in Intestine.

Dietary proteins are linked to the pathogenic Escherichia coli (E. coli) through the intestinal tract, which is the site where both dietary proteins are metabolized and pathogenic E. coli strains play a pathogenic role. Dietary proteins are degraded by enzymes in the intestine lumen and their metabolites are transferred into enterocytes to be further metabolized. Seven diarrheagenic E. coli pathotypes have been identified, and they damage the intestinal epithelium through physical injury and effector proteins, which lead to inhibit the digestibility and absorption of dietary proteins in the intestine tract. But the increased tryptophan (Trp) content in the feed, low-protein diet or milk fractions supplementation is effective in preventing and controlling infections by pathogenic E. coli in the intestine.

Radial versus femoral artery access for percutaneous coronary angiography and intervention: a systematic review and meta-analysis of randomized controlled trials in Chinese population.

To compare the feasibility, efficiency and safety of coronary angiography (CAG) and interventional procedures between the radial and femoral catheterization approaches in Chinese population using systematic review and meta-analysis, we conducted a search of the studies comparing radial and femoral catheterization approaches in patients underwent either CAG or percutaneous coronary intervention (PCI) in Chinese population. Fixed-effect relative risk (RR) for the primary end points and the second end points were compared between the two approaches. A total of 27 studies (n=8,749 patients) were finally included in the analysis. The success rate of radial approach was slightly lower than that of femoral approach in patients receiving CAG (P=0.004), but similar in patients receiving a further PCI treatment (P=0.11). The risk of major adverse cardiovascular events (MACEs) was similar between two approaches (P=0.27). Radial catheterization had a significantly lower rate of puncture site complications (P<0.00001), but a lower rate of puncture success rate (P=0.02). In patients with acute myocardial infarction (AMI), there was no difference in neither the risk of MACEs nor PCI success rate between two approaches (P=0.23 and 0.45, respectively), but a board line decrease of puncture success rate was observed in radial catheterization group (P=0.04). There were no significant differences in the volumes of contrast media, X-ray exposure time and operation time between the two approaches (all P>0.05). Thus, we concluded that radial approach is a safe method for CAG or PCI compared to traditional femoral approach in Chinese population due to their similar success rate of the procedure and risk of MACEs, and a decreased risk of puncture site complications.

Identification of metastasis-related microRNAs of hepatocellular carcinoma in hepatocellular carcinoma cell lines by quantitative real time PCR / 中华肝脏病杂志

<p><b>OBJECTIVE</b>To identify the metastasis-related miRNAs in hepatocellular carcinoma (HCC) cell lines.</p><p><b>METHODS</b>A qRT-PCR method was established and optimized.</p><p><b>RESULTS</b>All candidate metastasis associated miRNAs except miR-124a were expressed in high metastasis cell line MHCC97H and low metastasis cell line MHCC97L, while some miRNAs were differentially expressed between liver cancer cell line (HepG2) and hepatic cell line (L02) (P less than 0.05), these miRNAs include: miR-148b (1.96+/-0.51 vs 3.76+/-0.28), miR-9 (-4.38+/-0.86 vs -1.10+/-0.53), miR-30c (8.41+/-0.40 vs 6.82+/-0.29), miR-338 (3.14+/-0.29 vs -2.36+/-0.32), miR-34a (0.71+/-0.40 vs -2.95+/-0.26), Let-7g (-4.07+/-0.55 vs -6.98+/-0.56). miR-148b expression was about 4 times higher than miR-148a [5.46 (IQR 4.25-6.67) vs 1.29 (IQR 0.94-1.64)] in all cell line tested (Z=-5.097, P=3x10(-7)).</p><p><b>CONCLUSION</b>This study may help to understand the biological significance of miRNAs in HCC metastasis.</p>