Publications by authors named "Mengxin Zhang"

Polyolefin elastomers (POEs) serve as versatile materials bridging rubber and plastic properties across a variety of industrial processes, but their environmental persistence stemming from inert hydrocarbon composition raises ecological concerns. Here, we present a sustainable synthesis of degradable thermoplastic elastomers (TPEs) through the carbonylative polymerization of ethylene and biomass-derived polar monomers (PMs). A cost-effective and scalable nickel catalyst has overcome the dual poison to metal center resulted from polar acid or ester motif and CO, enabling the synthesis of high-molecular-weight polyketone materials with moderate strain recovery (SR) values ranging from 27% to 61%.

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Porcine Reproductive and Respiratory Syndrome (PRRS) is one of the most significant viral infectious diseases affecting the global swine industry. Eradicating PRRS remains a formidable challenge due to the high genetic diversity and the complexity of the host immune response. Currently, no commercial vaccine provides complete protection against Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) infection.

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TFEB-altered renal cell carcinoma (RCC) included TFEB-rearranged and TFEB-amplified RCC with unclear clinicopathological features and treatment options. Cases of TFEB-altered RCCs were collected. Fourteen cases showed TFEB rearrangement.

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Chinese hamster ovary (CHO) cells are the most widely used host for the commercial production of recombinant therapeutic proteins. The rapidly growing demand for large quantities of biologics at controllable cost-of-goods requires continuous cell engineering and process optimization of the CHO host cells. MicroRNAs (miRNAs) have been shown to enhance recombinant protein production in CHO cells.

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Hirschsprung disease (HSCR) is a common peripheral neurodevelopmental disorder and impaired enteric neural crest cell migration is one of the key factors. Secretagogin (SCGN) has been demonstrated to play a critical role in the rostral migratory stream during central nerve regeneration. However, there is a paucity of knowledge on the role of SCGN in enteric neural crest cell migration.

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Purpose: To address celastrol(Ce)'s efficacy and toxicity challenges in breast cancer, we first developed a carrier-free, self-targeting nanosystem with synergistic anti-tumor action by leveraging methotrexate (MTX)'s intrinsic folate moiety for active tumor targeting.

Methods: Ce-MTX nanoparticles (NPs) were prepared using a solvent precipitation method, with formulation parameters optimized. Characterization included particle size, polydispersity index (PDI), encapsulation efficiency (EE), loading efficiency (LE), and TEM.

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Objective: To investigate the risk factors and prognosis of acute kidney injury (AKI) in elderly patients after surgery based on the Medical Information Mart for Intensive Care IV (MIMIC-IV).

Methods: A retrospective analysis was conducted using MIMIC-IV data pertaining to aged postoperative patients. By logistic regression analysis models, Kaplan-Meier survival curve and Cox proportional hazards regression model.

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Background: Matrix metalloproteinase-7 (MMP7), which is expressed primarily by biliary epithelial cells (BECs), has been shown to promote biliary atresia (BA). However, the mechanism by which elevated MMP7 expression is induced in BA remains unclear.

Methods: Mouse extrahepatic BECs were used to investigate MMP7 overexpression induced by rhesus rotavirus (RRV) and lipopolysaccharide (LPS).

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Introduction: 2'-Fucosyllactose (2'-FL) is an oligosaccharide that can be synthesized in the human body and is known for its health-promoting and prebiotic effects. The biosynthesis of 2'-FL using microorganisms has received attention recently due to its increased application in nutritional and medical infant formulations.

Methods: This work attempts the new application of α-1,2-fucosyltransferase (FutCB) in the synthesis of 2'-FL in ().

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Introduction/objective: Some Mendelian randomization (MR) studies have found that there may be a genetic causal relationship between circulating metabolites and Alzheimer 's disease (AD), but the strength of evidence and the direction of association are not always consistent. In this study, a systematic review and meta-analysis of all the literature using MR methods to study the causal relationship between metabolites and AD was conducted to enhance the robustness and correlation of predicting genetic causality.

Methods: We conducted a comprehensive review of Mendelian randomization (MR) studies which are within the timeframe of all years to 20 December 2023.

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Zinc oxide-modified tourmaline-based negative ion polyester fiber (ZnO/TM/PET), as a new functional fiber with excellent negative ion emission characteristics, is of great significance to human health, and its industrial application needs to be expanded and promoted. In this paper, using zinc oxide, tourmaline, and polyethylene terephthalate as the main raw materials, ZnO/TM/PET negative ion functional fiber with 5% ZnO/TM composites was prepared. Then, it was blended with cotton fiber and interknitted with wool yarn and spandex yarn, from which we developed five kinds of negative ion polyester/cotton-blended yarn and four different kinds of knitted double-sided fabric using different equipment and process parameters.

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Background: Deep learning, a leading technology in artificial intelligence (AI), has shown remarkable potential in revolutionizing nuclear medicine.

Objective: This review presents recent advancements in deep learning applications, particularly in nuclear medicine imaging, lesion detection, and radiopharmaceutical therapy.

Results: Leveraging various neural network architectures, deep learning has significantly enhanced the accuracy of image reconstruction, lesion segmentation, and diagnosis, improving the efficiency of disease detection and treatment planning.

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Background: Thoracoscopic repair of esophageal atresia (EA) with tracheoesophageal fistula (TEF) has been performed with increasing frequency. Although many children have underwent surgery within three days after birth, the optimal timing for operation remains undetermined. This study aimed to investigate the appropriate timing for thoracoscopic repair of type C EA and its mid-term clinical outcomes.

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Background: Patients with anorectal malformations (ARM) commonly experience post-operative bowel dysfunctions due to inherent neuromuscular dysplasia and surgical damage to extraluminal structures. Magnetic compression anastomosis (MCA) minimizes injury to the perirectal neurovascular bundle and sphincter muscles via an endoluminal approach. We evaluated the preclinical feasibility and healing efficacy of a novel MCA device in a swine model of ARM and applied the device to an ARM patient.

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Background: Many variables, including age at surgery, disease type, surgical approaches and perioperative management factors have been demonstrated to influence efficacy in BA infants, however, the effect of surgical performance remains unclear. The objective of this retrospective study was to compare the postoperative efficacy and surgical performance of robotic (RKPE) versus laparoscopic Kasai portoenterostomy (LKPE) for BA.

Methods: Between October 2018 and June 2023, 158 type III BA patients undergoing minimally invasive surgery (RKPE = 66, LKPE = 92) were included in this multicenter retrospective study.

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With the emergence of the precision medicine era, targeting specific proteins has emerged as a pivotal breakthrough in tumor diagnosis and treatment. Apurinic/apyrimidinic Endonuclease 1 (APE1) is a multifunctional protein that plays a crucial role in DNA repair and cellular redox regulation. This article comprehensively explores the fundamental mechanisms of APE1 as a multifunctional enzyme in biology, with particular emphasis on its potential significance in disease diagnosis and strategies for tumor treatment.

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Article Synopsis
  • Robotic-assisted Kasai portoenterostomy (RAKPE) is a surgical option for treating biliary atresia (BA), and a study compared its outcomes to the traditional open method (OKPE) in 74 patients.
  • Results showed that while RAKPE took longer to perform, it resulted in less blood loss, faster recovery of bowel function, and better jaundice clearance rates at 3 and 6 months post-surgery compared to OKPE.
  • Despite these advantages, the rates of cholangitis and native liver survival were similar between both surgical methods, indicating that RAKPE may provide better short-term benefits but not a significant long-term advantage.
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The WHO's classification of renal cell carcinoma (RCC) has identified loss of SMARCB1 as one of the driven mutations. Despite intensive postoperative interventions, the prognosis for SMARCB1-deficient medullary RCC remains poor, indicating insufficiency in current therapy. Herein, we reported the treatment outcomes of five patients with metastatic SMARCB1-deficient medullary RCC and molecular correlates.

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Astroblastoma, MN1-altered, is a rare circumscribed glial neoplasm that is composed of round, cuboidal, orcolumnar cells with astroblastic perivascular pseudorosettes, often associated with MN1::BEND2 and MN1::CXXC5 fusions. Atroblastoma-like gliomas harbouring EWSR1::BEND2 have been reported that they defined an epigenetically distinct subtype of astroblastoma. We report a case of a 19-year-old female with an intracranial neuroepithelial tumor featuring a novel TCF3::BEND2 fusion.

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Article Synopsis
  • - The study focuses on developing a sensitive and specific biosensor for tumor molecular imaging using a modified DNA framework that targets a specific enzyme called APE1, which is more active in cancer cells compared to normal cells.
  • - This biosensor utilizes the unique ability of APE1 to cleave a specific site in the DNA framework, triggering a fluorescence signal that enhances the detection of tumor cells while minimizing noise from off-tumor signals.
  • - The results show that this biosensor can accurately distinguish tumor cells and assess drug resistance in neuroblastoma, offering potential for better patient risk classification in clinical settings.
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The limited understanding of the molecular mechanism underlying MYCN-amplified (MNA) neuroblastoma (NB) has hindered the identification of effective therapeutic targets for MNA NB, contributing to its higher mortality rate compared to MYCN non-amplified (non-MNA) NB. Therefore, a comprehensive analysis integrating metabolomics and transcriptomics was conducted to systematically investigate the MNA NB. Metabolomics analysis utilized plasma samples from 28 MNA NB patients and 68 non-MNA NB patients, while transcriptomics analysis employed tissue samples from 15 MNA NB patients and 37 non-MNA NB patients.

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