[Dietary exposure assessment of aflatoxins of residents in Shanghai residents aged 15 years and above from 2018 to 2023].

Objective: To understand the contents of aflatoxins(AFs) in foods sold in Shanghai, and to assess the exposure assessment of and its potential health risk among residents over 15 years old in Shanghai.

Methods: A total of 8114 samples from 8 categories of food were collected in Shanghai from 2018 to 2023. The samples were detected by GB 5009.

Growth, biofilm formation, and motility of Listeria monocytogenes strains isolated from food and clinical samples located in Shanghai (China).

Listeria monocytogenes is a common foodborne pathogen that frequently causes global outbreaks. In this study, the growth characteristics, biofilm formation ability, motility ability and whole genome of 26 L. monocytogenes strains isolated from food and clinical samples in Shanghai (China) from 2020 to 2022 were analyzed.

Clinical Outcome and Factors with Dietary Behaviors in Pregnant Women with : A Hospital-Based Case-Control Study in Shanghai.

Listeriosis is a globally rare foodborne disease that causes fetal-placental infection, leading to adverse pregnancy outcome, while limited research among pregnant women is available in China. This study was therefore aimed at analyzing the incidence, clinical manifestations, and clinical outcome of listeriosis among pregnant women and its associated dietary behavior risk factors in prevention. A hospital-based case-control study had been conducted from January 2017 to December 2021.

Risk factors associated with food consumption and food-handling habits for sporadic listeriosis: a case-control study in China from 2013 to 2022.

The prevalence of listeriosis in China has been increasing in recent years. Listeriosis primarily spreads through contaminated food. However, the resilient causative organism, , and its extended incubation period pose challenges in identifying risk factors associated with food consumption and food-handling habits.

Whole-Genome Sequencing-Based Characterization of Clinical Isolates in China, 2013-2019.

Invasive listeriosis is a rare but serious foodborne disease that causes maternal-neonatal, central nervous system, and bloodstream infections. The aim of this study was to assess the whole-genome sequencing (WGS)-based genetic diversity of clinical isolates over a 7-year period and prove the effect of WGS application in food vehicle investigation. A total of 360 isolates were recovered during 2013 and 2019 through the national listeriosis special surveillance program.

Functional divergence and adaptive selection of gene family in plants.

KNOTTED-like homeodomain () genes are transcriptional regulators that play an important role in morphogenesis. In the present study, a comparative analysis was performed to investigate the molecular evolution of the characteristics of the gene family in 10 different plant species. We identified 129 gene family members, which were categorized into two subfamilies based on multiple sequence alignment and phylogenetic tree reconstruction.

Identification of Contamination in a Ready-to-Eat Meat Processing Plant in China.

is the etiologic agent of listeriosis, which remains a significant public health concern in many countries due to its high case-fatality rate. The constant risk of transmission to consumers remains a central challenge in the food production industry. At present, there is very little known about contamination in ready-to-eat (RTE) processing plants in China.

10-Year Molecular Surveillance of Using Whole-Genome Sequencing in Shanghai, China, 2009-2019.

is an etiologic agent of listeriosis, and has emerged as an important foodborne pathogen worldwide. In this study, the molecular characteristics of 155 isolates from seven food groups in Shanghai, the biggest city in China, were identified using whole-genome sequencing (WGS). Most isolates (79.

Urinary levels of nickel and chromium associated with dental restoration by nickel-chromium based alloys.

This paper aims to investigate if the dental restoration of nickel-chromium based alloy (Ni-Cr) leads to the enhanced excretions of Ni and Cr in urine. Seven hundred and ninety-five patients in a dental hospital had single or multiple Ni-Cr alloy restoration recently and 198 controls were recruited to collect information on dental restoration by questionnaire and clinical examination. Urinary concentrations of Ni and Cr from each subject were measure by graphite furnace atomic absorption spectrometry.

[A cross-sectional survey on immunological function after dental restoration of nickel-chromium alloy].

Objective: To investigate the immunological function parameters in patients undergoing dental restoration of nickel-chromium (Ni-Cr).

Methods: Seven hundred and ninety-five Ni-Cr alloy consumers as exposure group, together with 198 controls, were surveyed by the questionnaire and the biological examination of immunological function.

Results: After splitting all subjects into three groups of equal sample size by urinary Ni or urinary Cr, serum interleukin-1beta(IL-1β) was found to be significantly higher in the group of urinary Ni > 115.

[A prospective follow-up study on the impact of urinary excretions of nickel and chromium after dental restoration by nickel-chromium based alloys].

Objective: To explore whether the dental restoration of nickel-chromium (Ni-Cr) based alloys will lead to extra excretions of urinary Ni and Cr.

Methods: Urinary Ni and Cr were repeatedly measured in 33 patients before and 2 months after the dental restoration of Ni-Cr alloys. The associations between alloy restoration and urinary Ni or Cr were analyzed by paired t test and general linear model of repeated measures.