Publications by authors named "Jian Z Zhang"

Article Synopsis
  • NCTC11168, a standard strain for flagellar biosynthesis research, produced two distinct phenotypic isolates, CJ1Z (mutant, lost flagellum) and CJ2S (complemented, normal colony), during laboratory passages.
  • Comprehensive analyses, including motility assessments, electron microscopy, and genome re-sequencing, revealed significant differences in biofilm formation, autoagglutination, and motility between the two isolates.
  • The study identifies a unique nucleotide insertion in the flhA gene of CJ1Z, which led to key mutations and supports the conclusion that FlhA is crucial for flagella expression, marking a first in understanding its C-terminal function.
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Objective: To determine the distribution of two important virulence factors [lipooligosaccharide (LOS) and capsular polysaccharide (CPS)] in ( ) isolated from different sources in China and to develop a rapid screening method for Guillain-Barré syndrome (GBS)-associated strains.

Methods: Whole-genome sequencing was carried out for 494 strains. The OrthoMCL software was used to define the LOS/CPS gene clusters.

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Background: Flurbiprofen has been one of the most commonly used nonsteroidal anti-inflammatory drugs (NSAIDs) in China and other Asian countries for perioperative multimodal analgesia in recent years, yet its association with anastomotic leakage in gastrointestinal anastomoses is unknown. The current study was designed to investigate whether short-term administration of flurbiprofen would increase the risk of anastomotic leakage in patients undergoing gastrointestinal surgery for cancer resection.

Methods: A total of 3653 patients (2487 (66.

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Background: Weightbearing computed tomography (WBCT) is a useful tool for the assessment of hindfoot alignment (HA). Foot ankle offset (FAO) is a recently introduced parameter, determined from WBCT images using semiautomatic software. The aim of this study was to determine the clinical relevance and reproducibility of FAO for the evaluation of HA.

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Objective: To establish a domestic database of Enterobacteria cloacae (E. cloacae), and improve the identification efficiency using peptide mass fingerprinting.

Methods: Peptide mass fingerprinting was used for the identification and subtyping of E.

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Osteoarthritis (OA) is an age-related disease with poorly understood pathogenesis. Recent studies have demonstrated that miRNA might play a key role in OA initiation and development. We reviewed recent publications and elucidated the connection between miRNA and OA cartilage anabolic and catabolic signals, including four signaling pathways: TGF-β/Smads and BMPs signaling, associated with cartilage anabolism; and MAPK and NF-KB signaling, associated with cartilage catabolism.

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Objective: To develop a multiple-locus variable-number tandem-repeat (VNTR) analysis (MLVA) assay for Acinetobacter pittii typing.

Methods: Polymorphic VNTRs were searched by Tandem Repeats Finder. The distribution and polymorphism of each VNTR locus were analyzed in all the A.

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In order to identify early specific diagnostic antigens of Spirometra erinaceieuropaei (syn. S. erinacei or S.

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This study aimed to determine the in vitro activity of quinupristin-alfopristin against Streptococcus sp. isolated in China. This agent is not yet available for clinical use, but it has been tested against a high proportion of resistant Staphylococcus aureus strains.

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Objective: To construct a rapid and high-throughput assay for identifying recombinant bacteria based on mass spectrometry.

Methods: Matrix assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) techniques were used to identify 12 recombinant proteins (10 of Yersinia pestis, 1 of Campylobacter jejuni and 1 of Helicobacter pylori). A classification model for the various phase of recombinant bacteria was established, optimized and validated, using MALDI-TOF MS-ClinProTools system.

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Background: Mesenchymal stem cells are capable of self-renewal and multi-lineage differentiation. They are used extensively to treat several diseases. Traditionally, mesenchymal stem cells are cultured in serum-containing media, typically supplemented with fetal bovine serum (FBS).

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Objective: To investigate molecular characterization of streptococcus pyogenes isolates involved in an outbreak of scarlet fever in China in 2011.

Methods: Seventy-four Streptococcal pyogenes involved in an outbreak of scarlet fever were isolated from pediatric patients in the areas with high incidence in China from May to August of 2011. Emm genotyping, pulsed-field gel electrophoresis (PFGE), superantigen (SAg) genes and antimicrobial susceptibility profiling were analyzed for these isolates.

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China is a developing country with the largest population of any country in the world. The 2010 sixth national census found that China's population was 1,339,724,852, accounting for about 19 percent of the world's total population. However, higher education in the Chinese dental field started late and developed slowly.

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Objective: To investigate the protein expression profiles of the major food-borne pathogen Campylobacter jejuni NCTC11168.

Methods: Membrane and soluble cellular proteins were extracted from the genome-sequenced C. jejuni strain NCTC11168.

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Objective: Secreted proteins of Helicobacter pylori (H. pylori) interact with gastric epithelium cells and may contribute to cell damage. Considering the fact that HP0175 and hypothetical conserved protein HP1286 are included in the group and that HP0175 is a well-known apoptosis-induced factor, the present study aims to clarify whether HP1286 plays a role in bacterial pathogenicity or even functions as an apoptosis-induced factor in human stomach.

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As a medical approach to posing contextualized questions that are based on real-life clinical problems, case-based learning (CBL) is used to stimulate and underpin the acquisition of knowledge, skills, and attitudes through clinical cases. Good effects were acquired in the practice of CBL teaching in English applied by the College of Stomatology, Shanghai Jiao Tong University. Responses from both students and teachers reflected that this course approach won their high acceptance and was worthy of use in selected stomatological courses.

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Article Synopsis
  • The study focuses on the genomic differences of two Yersinia pestis strains from China, linked to the EV76 vaccine strain.
  • A microarray with 12,000 probes was used to analyze these strains, and PCR was done to verify the findings.
  • The results revealed missing genes related to betaine synthesis and phage-related proteins in specific strains, offering insights for future genomic comparisons across different Yersinia pestis strains.
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Subject motion during scan is a major source of artifacts in MR examinations. Prospective motion correction is a promising technique that tracks subject motion and adjusts the imaging volume in real time; however, additional retrospective correction may be necessary to achieve robust image quality and compatibility with other imaging options. Real-time realignment of the imaging volume by prospective motion correction changes the coil sensitivity weighting and the field inhomogeneity relative to the imaging volume.

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Objective: To establish and evaluate a real-time PCR assay to detect Mycoplasma pneumoniae (M.pneumoniae) in clinical specimens.

Methods: By analysing the whole p1 gene sequence of 60 M.

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Article Synopsis
  • Previous studies identified various Bartonella species in rodents in Yunnan Province, China, but little is known about those carried by rodent fleas.
  • In this research, DNA of Bartonella was detected in two types of rodent fleas, indicating that some fleas can be carriers of this bacteria.
  • The study found different genetic variants of Bartonella and emphasized the need for further research to understand how these parasites contribute to the spread of Bartonella in rodents and their fleas.
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