Dandan Wei

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Plectasin, the first fungus defensin, is especially efficient against Gram-positive bacteria. To explore an effective approach for expressing plectasin in Bacillus subtilis, the sequence encoding plectasin fused with the small ubiquitin-like modifier (SUMO) gene, the 6 × His gene and the signal peptide of SacB were cloned into an E. coli–B. subtilis shuttle(More)
Dear Editor: Ulcerate colitis (UC), the main type of inflammatory bowel disease (IBD), is an unexplained immune-mediated intestinal mucosal inflammation with higher cancer risk. Because of an interaction between inflammation and coagulation in the disease progression, hypercoagulative state is often seen in patients of UC. Endothelial cell damage plays an(More)
To find potential serum biomarkers for upper tract urothelial carcinomas (UTUCs) via 1H nuclear magnetic resonance (1H NMR)-based metabolomic analysis. Serum specimens collected from 34 healthy individuals and 39 patients with UTUCs were subjected to 1H NMR-based metabolomic analysis. Principal component and orthogonal partial least squares discriminant(More)
Venenum Bufonis, a well-known traditional Chinese medicine, has been widely used in Asia and has gained popularity in Western countries over the last decade. Venenum Bufonis has obvious side effects that have been observed in clinical settings, but few studies have reported on its cardiotoxicity. In this work, the cardiotoxicity of Venenum Bufonis was(More)
Aspergillus flavus strains were isolated frompeanut fields of Liaoning, Shandong, Hubei and Guangdong Provinces in China, and identified through phenotypic and molecular approaches. Of the 323 A. flavus strains isolated, 76 strains did not produce aflatoxins detectable by UPLC. The incidence of atoxigenic A. flavus strains decreased with increase in(More)
A new species attributed to the genus Parvifuzia Guo & Ren, 2011, Parvifuzia peregrinasp. n., is described from the Middle Jurassic Jiulongshan Formation of Daohugou Village, Inner Mongolia, China. This new species, with apex of wing almost reaching the end of the abdomen and forewing venation with 30-32 veins at margin, broadens the diversity of(More)
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