Publications by authors named "Tongzhen Ji"

Background: is the most common gram-negative pathogen to cause neonatal infections. Contemporary virulence characterization and antimicrobial resistance (AMR) data of neonatal isolates in China are limited.

Methods: A total of 159  strains isolated from neonates were collected and classified into invasive and non-invasive infection groups, according to their site of origin.

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Objective: This study was aimed to investigate the serotypes, antibiotic susceptibilities, and multi-locus sequence type (MLST) profiles of group B (GBS) in the Beijing area.

Methods: Lower vaginal and rectal swabs were obtained from pregnant women of 35-37 gestational weeks (GWs) who attended the Beijing Obstetrics and Gynecology Hospital. All GBS isolates were identified with Gram staining, catalase reaction assays, and CAMP tests, followed by antibiotic susceptibility testing, serotype identification, multilocus sequence typing and erythromycin resistance gene analysis ( and ).

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Objective: The emerging epidemic of extended-spectrum β-lactamase-producing (ESBL-EC) is a global public health crisis. ESBL-EC infections are increasing worldwide and contribute to morbidity and mortality among newborn infants. However, the antimicrobial resistance characteristics and clonal transmission of maternal and neonatal ESBL-EC isolates need to be further deciphered.

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Neonatal invasive candidiasis (NIC) has significant morbidity and mortality. Reports have shown a different profile of those neonates affected with NIC and of fluconazole-resistant Candida spp. isolates in low- and middle-income countries (LMICs) compared to high-income countries (HICs).

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Objectives: Escherichia coli is a common pathogen causing invasive bacterial infections in neonates. In recent years, clinical antimicrobial susceptibility testing has demonstrated an increased rate of drug-resistant E. coli infections.

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Article Synopsis
  • The study aimed to explore how common maternal group B streptococcus (GBS) colonization is and its link to neonatal early-onset GBS disease (GBS-EOD), along with factors that may lead to GBS-EOD in newborns of GBS-positive mothers.
  • Researchers evaluated data from over 16,000 pregnant women and their neonates across three hospitals over one year, using consistent screening and prophylaxis methods to assess GBS colonization rates and GBS-EOD incidences.
  • The findings revealed that about 11.29% of pregnant women were GBS-positive, and those with GBS had a significantly higher GBS-EOD rate in their infants; specific predictive factors included positive GBS
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Background: Non-coding RNAs have emerged as important regulators in human cancers. In this work, we investigated the role of long intergenic non-protein-coding RNA 943 (LINC00943) in gastric cancer (GC).

Methods: LINC00943 expression was evaluated in GC patient tissues and cell lines.

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pathogens are commonly found in women and can cause vulvovaginal candidiasis (VVC), whose infection rate is further increased during pregnancy. We aimed to study the prevalence and strain distribution in pregnant Chinese women with a molecular beacon assay. From March 2016 to February 2017, a total of 993 pregnant women attending routine antenatal visits at the Beijing Obstetrics and Gynecology Hospital were enrolled.

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