Introduction Microorganisms regulate soil nitrogen (N) cycling in cropping systems. However, how microbial functional genes involved N respond to mulching practices is not well known. Methods We collected samples from a spring maize field mulched with crop straw (SM) and plastic film (FM) for 10-year no (CK) the Loess Plateau. Microbial were quantified using metagenomic sequencing. Results Comp...

The World Health Organization (WHO) has defined Vancomycin intermediate Staphylococcus aureus (VISA) and resistant (VRSA) as high priority pathogens. VISA VRSA are produced by different mechanisms, hence cannot convert to VRSA. Consequently, upon vancomycin treatment of VSSA isolates, there can be emergence but not its conversion But we observed that when (MIC ≤2 µg/mL) lacking vanA or vanB gen...

prior investigators demonstrated helicobacter pylori as a risk factor of liver diseases. in this study association between h. pylori and hepatocellular carcinoma was investigated. patients and methods totally, 59 specimens of liver were collected from two health care centers affiliated to shahid beheshti university of medical sciences, including 22 specimens of hepatocellular carcinoma, 18 spec...

BACKGROUND Helicobacter pylori cause chronic gastritis and subsequent diseases like gastric and duodenal ulcers and gastric adenocarcinoma. Current methods for detecting H. pylori have several disadvantages and it is of utmost importance to develop a simple, quick, accurate, and cost-effective diagnostic test. OBJECTIVES The aim of this study was to set up and evaluate a diagnostic value of l...

BACKGROUND/AIM To detect the effects on quinolone resistance due to biofilm formation activity in Ureaplasma urealyticum. MATERIALS AND METHODS An improved checkerboard dilution susceptibility test was used to analyze the quinolone resistance of clinical Ureaplasma isolates and a postbiofilm formation susceptibility assay was used to compare the effects on the quinolone susceptibility between...