Publications by authors named "Zeng Quan"

The development of efficient immobilization support for the enhancement of enzyme activity and recyclability is a highly desirable objective. Single-crystalline ordered macro-microporous ZIF-8 (SOM-ZIF-8), has emerged as a highly effective matrix for enzyme immobilization, however, the inherent hydrophobic nature limits its further advancement. Herein, we have customized the immobilization of the Pseudomonas cepacia lipase (LP) in the modification-channels of SOM-ZIF-8 by functionalizing the inner surface-properties with polyethylene glycol (PEG) (LP@SOM-ZIF-8-PEG), and significant enhancement of the activity and (thermal, solvent and cyclic) stability can be realized.

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To investigate optimal treatment strategy for pT3N0 laryngeal squamous cell carcinoma(SCC). A retrospective study of 150 patients with pT3N0 laryngeal SCC treated in the First Affiliated Hospital of Chongqing Medical University was performed. The efficacies of partial laryngectomy and total laryngectomy, as well as surgery alone and postoperative radiotherapy were evaluated.

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Article Synopsis
  • Extranodal extension (ENE) is a common feature in head and neck squamous cell carcinoma (HNSCC) that signifies tumor aggressiveness and raises the likelihood of local recurrence and distant metastasis.
  • ENE is utilized as a crucial indicator for prognosis and treatment decisions, yet there's a lack of consistent diagnostic standards for its assessment.
  • The article evaluates recent advancements in understanding the prognostic implications and diagnostic methods (both pathologic and radiologic) related to ENE in HNSCC.
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Neuroinflammation triggered by activated microglia leads to neuronal damage and, to a certain extent, neurodegeneration. Human umbilical cord mesenchymal stem cells (UC-MSCs) have good immunomodulatory and neuroprotective effects as well as therapeutic potential for neuroinflammation-related diseases. However, the complex microenvironment created by neuroinflammation poses a challenge to transplanted UC-MSCs.

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Flowers serve as hubs for biotic interactions with pollinators and microbes, which can significantly impact plant reproduction and health. Previous studies have shown that the flower microbiota undergoes dynamic assembly processes during anthesis. However, the influence of foraging pollinators on the assembly and dispersal of the flower microbiota and the transmission of plant pathogens remains poorly understood.

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Understanding the failure mechanisms of lithium-ion batteries is essential for their greater adoption in diverse formats. Operando X-ray and electron microscopy enable the evaluation of concentration, phase, and stress heterogeneities in electrode architectures. Phase-field models are commonly used to capture multi-physics coupling including the interplay between electrochemistry and mechanics.

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  • Scientists studied human stem cells that can turn into red blood cells, but noticed these stem cells often kept a protein called vimentin, while normal red blood cells did not.
  • They created a special stem cell line that could get rid of vimentin to see if that would help the stem cells form better red blood cells.
  • When they removed vimentin, the stem cells were better at getting rid of their nucleus, which is an important step to becoming mature red blood cells.
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Rescuing or compensating mitochondrial function represents a promising therapeutic avenue for radiation-induced chronic wounds. Adult stem cell efficacies are primarily dependent on the paracrine secretion of mitochondria-containing extracellular vesicles (EVs). However, effective therapeutic strategies addressing the quantity of mitochondria and mitochondria-delivery system are lacking.

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  • Comparative proteomics and non-target metabolomics were conducted on two wheat varieties over specific growth stages to investigate grain filling dynamics and identify quality control genes.
  • A total of 1541 proteins and 406 metabolites showed differential expression, primarily involved in protein metabolism, stress responses, energy metabolism, and amino acid metabolism.
  • The study identifies key proteins and metabolites influencing wheat quality, contributing to understanding the metabolic networks responsible for quality differences during the grain filling stage.
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Plant diseases significantly impact food security and food safety. It was estimated that food production needs to increase by 50% to feed the projected 9.3 billion people by 2050.

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is a causal agent of sugarcane Pokkah boeng, an important fungal disease that causes a considerable reduction in yield and sugar content in susceptible varieties of sugarcane worldwide. Despite its importance, the fungal factors that regulate the virulence of this pathogen remain largely unknown. In our previous study, mapping of an insertional mutant defect in virulence resulted in the identification of a cutinase G-box binding protein gene, designated that encodes a C2H2-type transcription factor (TF).

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Human pluripotent stem cell (hPSC)-derived red blood cells (RBCs) possess great potential for compensating shortages in transfusion medicine. For better RBC generation from hPSCs, we compared the cell seeding density in the embryoid body formation-based hPSC induction protocol. In the selection of low- and high-density inoculation conditions, we found that low-density culture performed better in the final RBC product with more cell output and increased average cellular hemoglobin content.

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To investigate the effects of fertilization methods and types on wheat rhizosphere microorganisms, macroelement (N, K) and microelement (Zn) fertilizers were applied on wheat by foliar spraying (FS) and root irrigation (RI) methods in a field experiment. The results indicated that fertilization methods and types can have significant impacts on the diversity and structure of rhizospheric microorganisms in wheat. The application method produced more significant effects than the fertilizer type.

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Unlabelled: Flowers are colonized by a diverse community of microorganisms that can alter plant health and interact with floral pathogens. is a flower-inhabiting bacterium and a pathogen that infects different plant species, including (apple). Previously, we showed that the co-inoculation of two bacterial strains, members of the genera and isolated from apple flowers, reduced disease incidence caused by this floral pathogen.

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Article Synopsis
  • - The article highlights the shift towards open access in scientific publishing, emphasizing the need for research outputs like data, code, and publications to be freely available.
  • - It offers best practices for publishing in The American Phytopathological Society journals, covering critical topics such as diagnostic assays, experimental design, and data sharing.
  • - The goal is to enhance reproducibility and effective use of research resources, ultimately improving understanding of biological effects in plant pathology.
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The enzymatic activities of Furin, Transmembrane serine proteinase 2 (TMPRSS2), Cathepsin L (CTSL), and Angiotensin-converting enzyme 2 (ACE2) receptor binding are necessary for the entry of coronaviruses into host cells. Precise inhibition of these key proteases in ACE2 lung cells during a viral infection cycle shall prevent viral Spike (S) protein activation and its fusion with a host cell membrane, consequently averting virus entry to the cells. In this study, dual-drug-combined (TMPRSS2 inhibitor Camostat and CTSL inhibitor E-64d) nanocarriers (NCs) are constructed conjugated with an anti-human ACE2 (hACE2) antibody and employ Red Blood Cell (RBC)-hitchhiking, termed "Nanoengineered RBCs," for targeting lung cells.

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To investigate the diversity and clinical effect of supraclavicular island flap in repairing the defect after head and neck tumor surgery. A retrospective analysis was performed on 30 patients who received the repair of head and neck defects with supraclavicular island flaps at Department of Otorhinolaryngology Head and Neck Surgery of the First Affiliated Hospital of Chongqing Medical University from January 2017 to March 2023. The sites and types of defects, intraoperative blood loss, time of flaps preparation, areas of flaps, survival of the flaps and other complications were recorded.

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To investigate the prognostic impact of different tumor invasion patterns in the surgical treatment of T3 glottic laryngeal cancer. A retrospective analysis was conducted on the clinical data of 91 patients with T3 glottic laryngeal cancer. Among the 91 patients, 58 cases (63.

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Article Synopsis
  • This study analyzed clinical data from 91 patients with T3 glottic laryngeal cancer to determine how different tumor invasion patterns affect prognosis after surgery.
  • Results indicated that posterior tumor invasion is linked to more complications and worse survival outcomes compared to anterior invasion, especially regarding laryngeal stenosis after partial laryngectomy.
  • The findings suggest that while partial laryngectomy can provide similar oncological results as total laryngectomy, further classification of tumor invasion patterns could help tailor treatment plans for better patient outcomes.
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Heat stress is a major abiotic stress that can cause serious losses of a crop. Our previous work identified a gene involved in heat stress tolerance in wheat, . To further investigate its mechanisms, in the present study, RNAi-silenced transgenic wheat and the wild type were comparatively analyzed at both the seedling and adult stages, with or without heat stress, using transcriptome sequencing.

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The plant core microbiota transmitted by seeds have been demonstrated to exist in seeds and adult plants of several crops for multiple generations. They are closely related to plants and are relatively conserved throughout evolution, domestication, and breeding. These microbiota play a vital role in the early stages of plant growth.

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Embedding an enzyme in the metal-organic frameworks (MOFs) gives good protection to the fragile enzyme. However, this may also restrain the enzyme activity because of the decreased substrate accessibility. Encapsulation of lipase AK from Pseudomonas fluorescens for preparing the enzyme-MOF composite (AK@ZIF-8-PEI) was performed through a new strategy based on polyethyleneimine and enzyme induced in-situ growth of zeolitic imidazolate framework-8 (ZIF-8).

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Article Synopsis
  • The study aimed to investigate how low oxygen levels affect the neural retina in retinal organoids made from human induced pluripotent stem cells (hiPSCs).
  • Researchers used a three-dimensional culture method to create embryoid bodies, observing them under both hypoxic (low oxygen) and normoxic (normal oxygen) conditions over several days.
  • Results indicated that while low oxygen levels increased the number of proliferating cells, it also changed the composition of specific cell types, enhancing stem cell characteristics in the neural retina.
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To evaluate the clinical significance of neoadjuvant immunotherapy combined with chemotherapy in the treatment of larynx preservation in locally advanced hypopharyngeal squamous cell carcinoma. Patients with locally advanced HPSCC(cT3-T4aN0-N3M0) were eligible. All received 2 cycles of pembrolizumab combined with docetaxel and platinum neoadjuvant induction therapy.

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