Publications by authors named "Guo-Dong Zhu"

Activation of brown adipose tissue (BAT) contributes to energy dissipation and metabolic health. Although mineralocorticoid receptor (MR) antagonists have been demonstrated to improve metabolism under obesity, the underlying mechanisms remain incompletely understood. We aimed to evaluate the role of BAT MR in metabolic regulation.

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Lower-grade gliomas (LGG) are the most common intracranial malignancies that readily evolve to high-grade gliomas and increase drug resistance. Paraptosis is defined as a nonapoptotic form of programmed cell death, which is gradually focused on patients with gliomas to develop treatment options. However, the specific role of paraptosis in LGG and its correlation is still vague.

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Background: Candida auris is an opportunistic pathogen with multiple drug resistance. Therefore, researchers conducted a meta-analysis to review PCR's ability to diagnose Candida auris to promote the development of accurate Candida auris diagnosis.

Methods: Researchers systematically retrieved relevant articles from PubMed, Cochrane Library, Embase, and Web of Science.

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The valve replacement is the main treatment of heart valve disease. However, thrombus formation following valve replacement has always been a major clinical drawback. Accelerating the endothelialization of cardiac valve prosthesis is the main approach to reduce thrombus.

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Background: Opportunistic Candida species causes severe infections when the human immune system is weakened, leading to high mortality.

Methods: In our study, bioinformatics analysis was used to study the high-throughput sequencing data of samples infected with four kinds of Candida species. And the hub genes were obtained by statistical analysis.

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Based on previous studies, we found that Bacillus Calmette-Guérin (BCG) vaccination may play a role in preventing SARS-CoV-2 infection. Therefore, we conducted a meta-analysis to investigate this protective effect. We searched the Embase, PubMed, Web of Science, Cochrane Library, BioRxiv, and MedRxiv databases for studies that evaluated the relationship between BCG vaccination and SARS-CoV-2 infection or COVID-19 disease.

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We report the efficient syntheses of chiral tetrahydroindole pyrazolinones by the asymmetric [3 + 2] cascade cyclizations (indolizations) of simple aniline derivatives with pyrazolinone ketimines as 2C synthons. The chiral phosphoric-acid-catalyzed system uses a concerted π-π interaction/dual H-bond control strategy to catalytically direct the asymmetric aniline, which undergoes a highly chemo-, regio-, and enantioselective [3 + 2] cascade annulation, furnishing a series of optically active tetra-hydroindole pyrazolinones with two contiguous chiral aza-quaternary carbon centers in excellent yields with excellent enantioselectivities. This method features a relatively broad substrate scope for amines and 2-naphthylamines and highlights the emerging value of direct chiral indolizations from simple amine sources in organic synthesis.

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Glioblastomas (GBM) is the most common primary malignant brain tumor, and radiotherapy plays a critical role in its therapeutic management. Unfortunately, the development of radioresistance is universal. Here, we identified calcium-regulated heat-stable protein 1 (CARHSP1) as a critical driver for radioresistance utilizing genome-wide CRISPR activation screening.

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Article Synopsis
  • The Xpert Xpress Flu/RSV is a fast, automated tool designed for detecting influenza virus and respiratory syncytial virus (RSV) through nucleic acid amplification.
  • A study assessed the accuracy of this tool by analyzing data from various medical databases and applying diagnostic accuracy guidelines.
  • Results showed high sensitivity (97% for influenza A, 98% for influenza B, and 96% for RSV) and high specificity (97% for influenza A, 100% for influenza B, and 100% for RSV), making it a reliable option compared to other RT-PCR methods.
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Background: Currently, Chlamydia trachomatis-specific host defense mechanisms in humans remain poorly defined. To study the characteristics of host cells infected early with Chlamydia trachomatis, we used bioinformatics methods to analyze the RNA transcription profiles of the conjunctiva, fallopian tubes, and endometrium in humans infected with Chlamydia trachomatis.

Method: The gene expression profiles of GSE20430, GSE20436, GSE26692, and GSE41075 were downloaded from the Gene Expression Synthesis (GEO) database.

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Background: (CT) and (NG) are widely spread across the world. Asymptomatic or inconspicuous CT/NG infections are difficult to diagnose and treat. Traditional methods have the disadvantages of low detection rate, inaccurate results, and long detection time.

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Article Synopsis
  • The study evaluated the effectiveness of a new test called loop-mediated isothermal amplification (LAMP) for detecting hepatitis B virus (HBV), which is crucial for diagnosing hepatitis B infection.
  • Researchers analyzed nine studies with a total of 1,298 samples and found that LAMP showed high sensitivity (91%) and specificity (97%) for HBV detection, indicating it is a reliable method.
  • Although LAMP demonstrated promising results compared to traditional PCR tests, further research is needed to determine if it can fully replace existing detection methods for HBV.
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We have developed a novel π-π interaction and dual H-bond concerted control strategy to construct axially chiral naphthylamine heterocycles. With -alkynyl-naphthylamines as the electrophile, indoles and 4-hydroxycoumarins were efficiently employed to construct axially chiral skeletons in good yields and with excellent enantioselectivities (up to 97% enantiomeric excess). Furthermore, the resulting products could be converted to potential squaramides featuring organic catalysts.

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In general, enantioselective C-H functionalization of -monosubstituted anilines is a highly challenging task owing to the competitive chemoselective N-H bond insertion reactions. In this paper, we reported a direct highly chemo-, site-, and enantioselective C-H aminoalkylation of -monosubstituted aniline derivatives with isatin-derived ketimines in the presence of chiral phosphoric acids (CPAs) and offered a practical strategy for asymmetric C-H functionalization of anilines containing N-H bonds.

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A versatile dual H-bonds and π-π interaction strategy that enables enantioselective remote C6-selective C-H functionalization of 2,3-disubstituted indoles was first reported. The N-H bond of indole was pivotal to achieve the C6 functionalization with excellent yield and enantioselectivity. Furthermore, this methodology leads to the efficient construction of numerous enantioenriched C6-functionalized indole products under mild reaction conditions employing different electrophiles.

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Herein, a cascade [3 + 2] annulation of N-aryloxyacetamides with 3-(hetero)arylpropiolic acids affording benzofuran-2(3H)-ones via rhodium(iii)-catalyzed redox-neutral C-H functionalization/isomerization/lactonization using an internal oxidative directing group O-NHAc was achieved. This catalytic system provides a regio- and stereoselective approach to synthesize (Z)-3-(amino(aryl)methylene)benzofuran-2(3H)-ones with exclusive Z configuration selectivity, acceptable yields and good functional group tolerance. Preliminary investigations on ultraviolet-visible and fluorescence behaviors reveal that the annulation products may be applied as a promising fluorescent probe for sensing metal cations, especially for cerium (Ce3+).

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Article Synopsis
  • The photothermally induced resonance AFM-IR technique (PTIR) is an emerging analytical method that captures nanoscale chemical and topographical data.
  • By using a customized PTIR system with a quantum cascade laser, the study examines how the surface-enhanced IR absorption (SEIRA) effect from Au-coated components influences PTIR signals in -nitrobenzoic acid samples of varying thicknesses.
  • Results indicate that SEIRA can significantly boost PTIR signals (by 1.5-8.3 times), with variations depending on sample thickness, incidence mode, and laser polarization, suggesting potential improvements in PTIR's analytical capabilities.
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Nonbiaryl N-C atropisomer is an important structural scaffold, which is present in natural products, medicines and chiral ligands. However the direct enantioselective C-H amination to access optically pure N-C atropisomer is still difficult and rare. Here we report a π-π interaction and dual H-bond concerted control strategy to develop the chiral phosphoric acids (CPAs) catalyzed direct intermolecular enantioselective C-H amination of N-aryl-2-naphthylamines with azodicarboxylates as amino sources for the construction of atroposelective naphthalene-1,2-diamines.

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is a major pathogenic bacterium causing perinatal infections in humans. In the present study, a novel real-time fluorescence loop-mediated isothermal amplification technology was successfully developed and evaluated for the detection of in a single reaction. Six specific primers were designed to amplify the corresponding six regions of fbs B gene of , using Bst DNA polymerase with DNA strand displacement activity at a constant temperature for 60 min.

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A method of SPINOL-derived chiral phosphoric acid catalyzed asymmetric intermolecular N-hydroxyalkylation of multisubstituted indoles with ethyl glyoxalates is described in this report. This protocol provides an alternative, convenient, and direct strategy for efficient access to structurally unique α-chiral indole N,O-acyclic aminals with a broad substrate scope and good to excellent enantioselectivities. The synthetic utility of this methodology is illustrated by a gram-scale experiment and the subsequent efficient synthesis of more complex chiral N,O-aminal indole derivatives.

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Grazing is a common human activity on grassland region. Long-term grazing exerts great effects on ecosystem carbon cycling. In this study, we collected leaf and soil samples from different grassland types across the growing season, separately from un-grazed (UG) and overgrazed (OG) plots.

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A metal-controlled, regioselective intermolecular amination of unsaturated N-acylpyrazoles with azodicarboxylates is described. Under zinc catalysis, the N-acylpyrazole substrates undergo amination at the α-position of the N-acylpyrazole moiety. Conversely, with silver as the catalyst, the reaction gave γ-amination products.

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The present study was to investigate clinical significance, biological functions and underlying mechanisms of BTB Domain and CNC Homolog 1(BACH1) deregulation in human colorectal cancer (CRC). The result showed that BACH1 upregulation was significantly associated with enhanced tumor invasion (P = 0.014) and gender (P = 0.

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Aims And Background: Discs large homolog 1 (DLG1) belongs to the modular proteins Membrane Associated Guanylate Kinases (MAGUKs) and plays a major role in the formation of cell-cell junctions and cell polarity. DLG1 varies in expression and localization among malignancies. However, the clinical significance of DLG1 in the context of human colorectal cancer (CRC) remains unclear.

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