Publications by authors named "Zheng-dong Zhang"

Background: The spread of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) among humans and food-producing animals has been widely reported. However, the transmission routes and associated risk factors remain incompletely understood.

Methods: Here, we used commensal Escherichia coli bacteria strains from faeces of pigs and local citizens [HEG: high exposure group (pig breeders, butchers or restaurant chefs) and LEG: low exposure group (other occupations)] to explore the dynamics of ARB and ARG transmission between animals and humans.

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Background: Ferroptosis-related genes disrupt iron homeostasis and enhance lipid peroxidation to initiate respiratory system diseases. However, the association between genetic variants in the ferroptosis-related genes with house dust mite (HDM)-induced allergic rhinitis (AR) susceptibility remains unclear.

Methods: A case-control study, involving 222 cases and 237 healthy controls from a Chinese population, was conducted to evaluate the relationship between single nucleotide polymorphisms (SNPs) in ferroptosis-related genes and HDM-induced AR risk.

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  • The study examines post-traumatic related limb osteomyelitis (PTRLO) in China, revealing a notable increase in infection rates from 0.93% to 2.16% over ten years, with a predominance of monomicrobial infections (82.6%).
  • The research identified significant increases in both Gram-positive (GP) and Gram-negative (GN) pathogens, with the most common strains being Methicillin-sensitive Staphylococcus aureus (MSSA) and Pseudomonas Aeruginosa, respectively.
  • High-risk factors for polymicrobial infections included open fractures, hypoproteinemia, and multiple fractures, emphasizing the need for targeted antibiotic resistance and sensitivity analysis.
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As a highly infectious pathogen, Bombyx mori nuclear polyhedrosis virus (BmNPV) has a high lethality rate in silkworm. Our previous study have confirmed that Hsp90 plays a positive role in BmNPV proliferation and Hsp90 inhibitor, geldanamycin (GA) can decrease the replication of BmNPV in vitro. However, its molecular mechanism is not fully understood.

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Long non-coding RNAs (lncRNAs), a class of transcripts exceeding 200 nucleotides and lacking protein coding potential, have been proven to play important roles in viral infection and host immunity. Bombyx mori nucleopolyhedrovirus (BmNPV) is an important pathogen, which causes the silkworm disease and leads to a huge challenge to the sericultural industry. At present, research on the roles of insect lncRNAs in host-virus interaction are relatively few.

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Background: Genetic variants in (also known as ) have been reported to have significant associations with asthma and eczema in special populations, but little is known about allergic rhinitis. This study purposes to evaluate the association of single nucleotide polymorphisms (SNPs) in with house dust mite (HDM)-sensitized persistent allergic rhinitis (PER) in a population of Han Chinese.

Methods: In this hospital-based case-control study, 534 HDM-sensitized PER patients and 451 healthy controls were recruited from East China.

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Background: Allergic rhinitis (AR) is a nasal inflammatory disease resulting from a complex interplay between genetic and environmental factors. The association between Toll-like receptor (TLR) signaling pathway and environmental factors in AR pathogenesis remains to be explored. This study aims to assess the genetic association of AR with single nucleotide polymorphisms (SNPs) in TLR signaling pathway, and investigate the roles of gene-gene and gene-environment interactions in AR.

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Long non-coding RNA (lncRNA) is a type of non-coding RNA molecule, which exceeds 200 nucleotides in length and participates in the regulation of a variety of life activities. Recent studies showed that lncRNAs play important roles in viral infection and host immunity. At present, the researches on insect lncRNAs are relatively few.

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Article Synopsis
  • - A study investigated the role of genetic variants in the Hippo pathway genes and their association with house dust mite (HDM)-induced allergic rhinitis (AR), a common respiratory condition characterized by bothersome symptoms.
  • - Researchers conducted a case-control study involving 222 individuals with AR and 237 controls, focusing on 121 genetic variants and using various methods for DNA extraction and genotyping to evaluate their effects on AR risk.
  • - The findings revealed that the genetic variant rs754466 in the DLG5 gene was linked to a reduced risk of developing HDM-induced AR, particularly in individuals with moderate to severe nasal symptoms, and was associated with higher mRNA expression of DLG5.
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Differential expression of non-coding RNA after traumatic spinal cord injury (TSCI) is closely related to the pathophysiological process. The purposes of this study were to systematically profile and characterize expression of circular RNA (circRNA) in the lesion epicenter of spinal tissues after TSCI, and predict the structure and potential function of the regulatory circRNA/miRNA network. Forty-eight C57BL/6 mice were randomly and equally assigned to two groups: one subjected to TSCI at T8-10 with an Allen's drop impactor, and a second subjected to laminectomy without TSCI.

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Background: The polymorphisms inside microRNA target sites locating in the 3'-UTR region may introduce the micro-RNA-binding changes, which may regulate the gene expression and correlate with the potential diseases.

Objectives: We aimed to investigate whether the polymorphisms in microRNA target sites of transforming growth factor beta (TGF-β) signaling pathway genes are associated with the susceptibility of mite-sensitized allergic rhinitis (AR) in a Han Chinese population.

Methods: In this case-control study, 454 AR patients and 448 healthy controls were recruited.

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Background: Polymorphism -509C/T in the promoter of transforming growth factor beta1 () gene is implicated in the pathogenesis of asthma. This polymorphism might also act to regulate the development of allergic rhinitis (AR).

Objectives: To investigate whether -509C/T is associated with AR susceptibility and severity in a Han Chinese population.

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  • - The study investigates the use of deep neural networks, specifically FR-CNN, to improve the identification of perigastric metastatic lymph nodes (PGMLNs) in CT scans, aiming to mimic and enhance radiologists' recognition abilities.
  • - A dataset of 1371 labeled CT images and additional original images was analyzed to compare the accuracy of the FR-CNN model against radiologists' assessments, with initial results showing promising metrics for precision and recall.
  • - After refining the model, improvements in accuracy were noted, with metrics like mean average precision (mAP) increasing from 0.5019 to 0.7801, and area under the curve (AUC) rising from 0.8995 to 0.
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Background: Early diagnosis and accurate staging are important to improve the cure rate and prognosis for pancreatic cancer. This study was performed to develop an automatic and accurate imaging processing technique system, allowing this system to read computed tomography (CT) images correctly and make diagnosis of pancreatic cancer faster.

Methods: The establishment of the artificial intelligence (AI) system for pancreatic cancer diagnosis based on sequential contrast-enhanced CT images were composed of two processes: training and verification.

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Background: An artificial intelligence system of Faster Region-based Convolutional Neural Network (Faster R-CNN) is newly developed for the diagnosis of metastatic lymph node (LN) in rectal cancer patients. The primary objective of this study was to comprehensively verify its accuracy in clinical use.

Methods: Four hundred fourteen patients with rectal cancer discharged between January 2013 and March 2015 were collected from 6 clinical centers, and the magnetic resonance imaging data for pelvic metastatic LNs of each patient was identified by Faster R-CNN.

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Although aberrant expression of Runt-related transcription factor 3 (RUNX3) contributes to tumor progression and metastasis in a number of carcinomas, the status of RUNX3 and its correlation with prognosis in oral squamous cell carcinomas (OSCC) are still controversial. The aim of present study was to investigate the function of RUNX3 in OSCC and the underlying molecular mechanisms. Tissue microarray (TMA) consisting of 232 OSCC specimens was used to detect the expression of RUNX3 by immunohistochemistry method.

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MicroRNAs (miRNAs/miRs) are a class of small noncoding RNA molecules that have important roles in regulating the expression of target genes associated with the development and progression of cancer. The majority of miRNAs are expressed in a highly tissue- and region-specific manner, and released into the bloodstream as a consequences of different diseases. Furthermore, altered levels of miRNAs have been observed in several diseases, including cancer.

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  • China has a high burden of tuberculosis (TB), with Sichuan province having the second-highest number of cases, particularly in Zigong.
  • A study in 2010 analyzed 265 TB samples to understand the genetic makeup and drug resistance of Mycobacterium tuberculosis, using methods like Spoligotyping and MIRU-VNTR typing.
  • The findings revealed that the Beijing family strain was the most common, accounting for over half of the cases, and 27.17% of isolates showed resistance to at least one anti-TB drug, with no significant difference in resistance between Beijing and non-Beijing strains.
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SWAT model, an extensively used distributed hydrological model, was used to quantitatively analyze the influences of changes in land use and climate on the runoff at watershed scale. Liuxihe Watershed' s SWAT model was established and three scenarios were set. The calibration and validation at three hydrological stations of Wenquan, Taipingchang and Nangang showed that the three factors of Wenquan station just only reached the standard in validated period, and the other two stations had relative error (RE) < 15%, correlation coefficient (R2) > 0.

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Unlabelled: As recent studies have described an association between vitamin D and allergic rhinitis, we hypothesized that vitamin D pathway-related genes may be candidate genes for susceptibility to allergic rhinitis. Thus, we sought to evaluate whether polymorphisms in the vitamin D receptor (VDR) and CYP2R1 genes are associated with mite-sensitized persistent allergic rhinitis (PER) in a Han Chinese population. A hospital-based case-control study consisting of 519 patients with mite-sensitized PER and 447 healthy controls was conducted.

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Background: The ADAM33 gene has been identified as a potentially important asthma candidate gene and polymorphisms in this gene have been shown to be associated with asthma and seasonal allergic rhinitis.

Objective: To assess whether the ADAM33 polymorphisms are associated with persistent allergic rhinitis (PER) due to house dust mites in a Chinese population.

Methods: In a hospital-based case-control study of 515 patients with mite-sensitized PER and 495 healthy controls, we genotyped seven single nucleotide polymorphisms (SNPs) in ADAM33.

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Objective: To study feasibility and security of single-incision laparoscopic cholecystectomy (SILC).

Methods: Clinical trials comparing SILC with conventional laparoscopic cholecystectomy (LC) for benign gallbladder disease published from 2010 to 2012 were retrieved. A meta-analysis was conducted to evaluate operative time, blood loss, conversion rate, post-operative pain, wound satisfaction score, post-operative hospital stay and post-operative complications between SILC group and LC group.

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This study was designed to evaluate whether the revised 2010 Tumour Node Metastasis (TNM) staging system could lead to a more accurate prediction of the prognosis of renal cell carcinoma (RCC) patients. A total of 1216 patients who had undergone radical nephrectomy or partial nephrectomy for RCC from 2003 to 2011 were enrolled. All of the patients had pathologically confirmed clear cell RCC (ccRCC).

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Objectives: The aim of the present study was to investigate whether PON2 gene polymorphisms (rs7493, rs12026, rs12704796, rs7785846 and rs7786401) are associated with susceptibility to noise-induced hearing loss (NIHL) in the Chinese population.

Methods: A case-control study was conducted using 615 cases selected without any restriction in age or sex and 644 controls who were matched with the cases in terms of age, gender and the intensity and duration of exposure to noise. Information on these subjects was gathered by questionnaires that were administered through face-to-face interviews by trained interviewers.

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  • HIF-1α is crucial for angiogenesis, affecting tumor growth and metastasis, and genetic variations in HIF1A can influence cancer susceptibility.
  • A study involving 662 prostate cancer patients and 716 controls found that certain HIF1A polymorphisms (particularly rs11549467) were linked to a significantly higher risk of developing prostate cancer.
  • Specifically, those with the rs11549467 variant had increased risk based on factors like age, smoking status, and family history, as well as a correlation to higher Gleason scores, indicating more aggressive cancer.
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