Publications by authors named "Zhengqi Wu"

Purpose: This study aimed to investigate the effect of the N6-methyladenosine (m6A) dependent ferroptosis on cisplatininduced Sertoli cell injury.

Materials And Methods: A cisplatin exposure mouse model was established by intraperitoneal injection of cisplatin in our study. TM4 cell lines was used for study.

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Circular RNAs (circRNAs) function as tumour promoters or suppressors in bladder cancer (BLCA) by regulating genes involved in macrophage recruitment and polarization. However, the underlying mechanisms are largely unknown. The aim of this study was to determine the biological role of circLOC729852 in BLCA.

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Objective: Comparing the clinical efficacy of thoracoscopy and robotic surgery in the treatment of mediastinal tumors using meta-analysis.

Methods: Computer retrieval of PubMed, Embase, The Cochrane Library, and Web of Science databases for literature comparing the clinical effects of video-assisted thoracic surgery (VATS) and robot-assisted thoracic surgery (RATS) in treating mediastinal tumors, with the retrieval time limit from the establishment of the database to September 2023. Two evaluators independently screened the literature, extracted data, and assessed the risk of bias.

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Background: Modulation of programmed cell death in tumor cells alters the tumor microenvironment and the influx of tumor-infiltrating lymphocytes, and the combination of its inducers and immune checkpoint inhibitors plays a synergistic role in enhancing antitumor effects.

Methods: We downloaded the data of clear cell renal cell carcinoma samples from The Cancer Genome Atlas and used a machine learning approach to build a new programmed cell death index (PCDI) through 13 programmed cell death-related genes. Based on PCDI, clinical features, tumor immune microenvironment, chemotherapy response and immunotherapy response were systematically analyzed.

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Parkinson's disease (PD) is the second most common neurodegenerative disease after Alzheimer's disease (AD). It is characterized by a progressive loss of dopaminergic neurons in the substantia nigra pars compacta (SNc) and the formation of Lewy bodies (LBs). Although PD is primarily considered a gray matter (GM) disease, alterations in white matter (WM) have gained increasing attention in PD research recently.

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Article Synopsis
  • Different stages of gastric adenocarcinoma (GAC) development have unique sets of risk factors, highlighting the complexity of cancer progression.
  • Age, occupation (especially farming), low income, infection, alcohol consumption, hot food consumption, and previous gastritis or peptic ulcer history are linked to chronic atrophic gastritis (CAG) development.
  • Progression from low-grade dysplasia (LGD) to GAC is influenced by age, male gender, and history of polyps, suggesting that targeting these risk factors earlier could help reduce GAC incidence.
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Background: Pancreatic neuroendocrine tumors (pNETs) are rare neuroendocrine neoplasms (NENs) for which little is known about their clinical features, treatment options, and survival prognosis. The purpose of this study is to evaluate the risk factors affecting the overall survival (OS) and cancer-specific survival (CSS) in patients with grade 1 pNETs (G1 pNETs) and to provide a new theoretical basis for clinical diagnosis and treatment.

Methods: A retrospective analysis of individuals with G1 pNETs registered in the Surveillance, Epidemiology, End Results (SEER) database was performed.

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Multiple sclerosis (MS) is a chronic inflammatory, demyelinating, and neurodegenerative disease in the central nervous system (CNS). Its pathogenesis is quite complex: Accumulated evidence suggests that biochemical signals as well as mechanical stimuli play important roles in MS. In both patients and animal models of MS, brain viscoelasticity is reduced during disease progression.

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Existing studies on the biological activity of theabrownins are not based on their free state but on the complexes of theabrownins, polysaccharides, proteins, and flavonoids. In this study, theabrownins (TBs-C) were prepared by weak alkali oxidation of tea polyphenols. The ultraviolet-visible scanning spectrum of TBs-C showed two characteristic absorption peaks at 203 and 270 nm.

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Theabrownins (TBs) are prepared from dark tea and contain a large number of complex heterogeneous components, such as carbohydrates, proteins, and flavonoids, which are difficult to remove. In addition, some toxic and harmful extraction solvents are used to purify TBs. These obstacles hinder the utilization and industrialization of TBs.

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Background: A lack of research on the association of trefoil factors (TFF) with gastric cancer and premalignant lesions (PML) in the general population is an important obstacle to the application of TFFs for gastric cancer screening. We aimed to analyze the association of TFFs with gastric cancer and PMLs in a general population.

Methods: We evaluated 3,986 adults residing in Wuwei, China.

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Article Synopsis
  • Antibiotic resistance poses a significant challenge in China, affecting the treatment of infections, necessitating the need for personalized therapies using local data on resistance patterns.* -
  • A large multi-center study analyzed 4,242 bacterial strains from gastric biopsy samples across five regions, revealing high resistance rates, especially for clarithromycin, levofloxacin, and metronidazole.* -
  • Results showed good agreement between resistant phenotypes and genotypes for clarithromycin and levofloxacin, suggesting that genotype testing could be a viable alternative to traditional methods, while highlighting the importance of ongoing monitoring and personalized treatments.*
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Introduction And Importance: In surgery, misdiagnosis is not uncommon, usually a result of erroneous image interpretations and pathology diagnosis especially involving a tumor or cancer. Misdiagnosis may cause increased morbidity, mortality and surgical risks.

Case Presentation: A 49-year-old man presented for the second time with a right upper abdominal mass of 7 months.

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Objective: This study aimed to determine the prevalence and risk factors of Helicobacter pylori infection across all age groups in Wuwei City, a high-risk area for gastric cancer in Northwest China.

Methods: We conducted this study from 2016 to 2017 in an urban and a rural community in Wuwei City. Stool antigen tests targeted individuals aged 0 to 3 years old, and C-urea breath tests targeted individuals aged above 3 years.

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Objectives: To evaluate the prevalence of Helicobacter pylori infection and risk factors and to serotype the strains in Wuwei, located in north-western China, which has a high incidence of gastric cancer.

Methods: Helicobacter pylori infection was analysed in 21 291 adults by C-urea breath test, and H. pylori antibody were detected in 9183 serum samples by latex immunoturbidimetric method.

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Introduction: The COVID-19 pandemic presents a unique global health challenge further complicating surgical management of COVID-19 positive patients due to a lack of published literature.

Case: Within we discuss a 48-year-old Chinese man, presenting with acute gastrointestinal obstruction due to sigmoid colonic mass. The patient was screened and tested positive for COVID 19 due to his employment in Wuhan, China at the COVID-19 pandemic epicenter.

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Aroma assessment remains difficult and uncertain in the present sensory assessment system. It is highly desirable to develop a new assessment method to discriminate the quality of various teas in the tea market. In the present work, based on linear discriminant analysis and principal component analysis, the aroma of dry and wet samples of different Xi-hu Longjing and Pu-erh teas were tested and differentiated by electronic noses (e-nose).

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Chin-brick tea polysaccharide conjugates (TPC-C) were prepared to study their emulsion capabilities. Interfacial tension and the effects of some factors, such as storage time, metal ion concentrations (Na, Ca), pH (2.0-8.

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The mechanism of tea-infusion precipitation is not clear. Epigallocatechin gallate (EGCG) and caffeine (CAF) are the core components of green tea infusion precipitate. The critical precipitation concentration ( C) of EGCG-CAF mixed aqueous solutions was assayed through a turbidity assay performed at 25 °C and verified by a differential-scanning calorimeter (DSC) for reliability.

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The practical application of pure-silica MFI zeolite membranes for ethanol/water separation by pervaporation is limited by its poor stability. Herein, we present the Si-OH eliminated MFI membranes by a simple dopamine modification, which can effectively prevent the chemical reaction between Si-OH groups and components, endowing the long-term pervaporation stability.

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Polysaccharide conjugates were prepared from Pu'erh tea and fractionated by DEAE-cellulose DE-52 column chromatography to yield one unexplored polysaccharide-conjugate fraction termed TPC-P with a molecular weight of 251,200Da. DVS (dynamic vapour sorption) result discovered that the humidity condition of long-term preservation for TPC-P is below 70% RH. Although it contained proteins, TPC-P could not bind to the Coomassie Brilliant Blue dyes G250 and R250.

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E-cadherin, vascular endothelial growth factor (VEGF), and matrix metalloproteinases (MMPs) are important molecules involved in tumor metastasis. In this study, we examined the expressions of E-cadherin, VEGF, MMP-1, MMP-2, and microvessel density (MVD), as well as microlymphatic vessel density (MLVD) in 200 cases of gastric cancer tissues, and determined the relationship between these parameters and the clinicopathological features and patient survival. Protein expressions, MVD, and MLVD were detected by immunohistochemistry.

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