Molecular characteristic of mcr-1 producing Escherichia coli in a Chinese university hospital.

Background: Colistin has been considered as a last-line treatment option in severe infections caused by multidrug-resistant (MDR) gram-negative pathogens. However, the emergence of the mobile colistin resistance gene (mcr-1) has challenged this viewpoint. The aim of this study is to explore the prevalence of mcr-1 in Escherichia coli (E.

High prevalence of metallo-β-lactamase among carbapenem-resistant Klebsiella pneumoniae in a teaching hospital in China.

The aim of this study was to characterize the carbapenemases in carbapenem-resistant Klebsiella pneumoniae (CR-KP) from a Chinese teaching hospital. A total of 40 CR-KPs were screened for the presence of carbapenemases. Minimum inhibitory concentrations were determined by agar dilution.

Fecal carriage of carbapenem-resistant Enterobacteriaceae in a Chinese university hospital.

Background: Carbapenem-resistant Enterobacteriaceae (CRE) is widespread in China. To date, no study available has specifically determined the prevalence and risk factors of inpatients with CRE intestinal colonization in this region.

Methods: Stool samples were screened for the presence of CRE in a Chinese university hospital.

The UDP glucose: flavonoid-3-O-glucosyltransferase (UFGT) gene regulates anthocyanin biosynthesis in litchi (Litchi chinesis Sonn.) during fruit coloration.

We analyzed a litchi cultivar that included three phenotypes for pericarp color, ranging from green, indicating the absence of anthocyanins, to yellow, and red. Anthocyanins, chlorophylls, carotenoids, and flavonoids were measured in the three stages. Fruit coloration of red-skinned litchi was mainly due to higher flavonols, and anthocyanin pigments, lower chlorophyll (higher chlorophyll degradation).