Publications by authors named "Guan S"

Overactivation of neddylation has been found in a number of common human tumor-related diseases. In recent years, targeting the neddylation pathway has become an appealing anti-cancer strategy, and it is critical to find neddylation inhibitors with novel structures and higher efficacy. Here, we present the discovery of novel inhibitors of the NEDD8-activating enzyme (NAE) and their antitumor activity in vitro.

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A spectroscopic imaging-scanning tunneling microscope (SI-STM) allows for the atomic scale visualization of the surface electronic and magnetic structure of novel quantum materials with a high energy resolution. To achieve the optimal performance, a low vibration facility is required. Here, we describe the design and performance of an ultrahigh vacuum STM system supported by a hybrid vibration isolation system that consists of a pneumatic passive and a piezoelectric active vibration isolation stage.

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Conventional embolists disreputably tend to recanalization arising from the low filling ratio due to their rigidity or instability. As a result, intelligent hydrogels with a tunable modulus may meaningfully improve the therapeutic efficacy. Herein, an injectable composite double-network (CDN) hydrogel with high shear responsibility was prepared as a liquid embolic agent by cross-linking poly(vinyl alcohol) (PVA) and carboxymethyl chitosan (CMC) via dynamic covalent bonding of borate ester and benzoic-imine.

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In the cardiovascular field, coating containing copper used to catalyze NO (nitric oxide) production on non-degradable metal surfaces have shown unparalleled expected performance, but there are few studies on biodegradable metal surfaces. Magnesium-based biodegradable metals have been applied in cardiovascular field in large-scale because of their excellent properties. In this study, the coating of copper loaded in silk fibroin is fabricated on biodegradable ZE21B alloy.

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Compared to traditional small molecule and antibody drugs, RNA-based drugs offer a simple design, short research and development cycles, high specificity, broad treatment fields, and long-term efficacy. As a result, RNA-based drugs are extensively used to treat genetic diseases, tumors, viral infections, and other illnesses, suggesting that they have the potential to become the third-largest drug class after small molecule and antibody drugs. Currently, more than 10 small nucleic acid drugs have gained regulatory approval.

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3-monochloropropane-1,2-diol esters (3-MCPDE) are toxic substances that form in food thermal processing and have a diverse range of toxicities. In this study, we found that 3-MCPDE triggered necroptosis by RIPK1/RIPK3/MLKL pathway in HepG2 cells. Previous studies have shown that ROS is an important activator of RIPK1 and RIPK3.

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Background And Purpose: In-stent stenosis is commonly observed after stent implantation. There is no consensus on the contributing factors for in-stent stenosis, especially for aneurysms located at or beyond the circle of Willis in the anterior circulation. This study aimed to investigate the morbidity and determinants of in-stent stenosis in distal anterior circulation aneurysms following the implantation of Pipeline Embolization Devices.

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Pesticide residues in cowpeas have raised worldwide concern. However, only a few studies have focused on pesticide accumulation and distribution in greenhouse and open-field cowpeas. Field trial results suggest that difenoconazole, dimethomorph, thifluzamide and pyraclostrobin dissipated faster in open fields (mean half-lives, 1.

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Aims: We previously showed that the nab-paclitaxel plus S-1 (NPS) regimen had promising effects against metastatic pancreatic ducal adenocarcinoma (mPDAC), whose efficacy however could not be precisely predicted by routine biomarkers. This prospective study aimed to investigate the values of mutations in circulating tumor DNA (ctDNA) and their dynamic changes in predicting response of mPDAC to NPS chemotherapy.

Methods: Paired tumor tissue and blood samples were prospectively collected from patients with mPDAC receiving first-line NPS chemotherapy, and underwent next-generation sequencing with genomic profiling of 425 genes for ctDNA.

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Ginsenoside Rb1 (Gs-Rb1) is among the most significant effective pharmacological components in ginseng. 3-monochloropropane-1,2-diol (3-MCPD), a chloropropanol-like contaminant, is produced in the production of refined oils and thermal processing of food. Pyroptosis is a type of programmed cell death triggered by inflammasomes.

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Replacing the oxygen evolution reaction with the alcohols oxidation reaction (AOR) in electrolytic water is not only expected to reduce the overall energy consumption, but also realize the green synthesis of high value-added chemicals. However, designing high-activity electrocatalysts toward AOR yet faces a daunting challenge due to the indefinite conversion mechanism of different alcohols. Herein, a self-supported N-CoFeP/NF electrocatalyst on a nickel foam is synthesized via hydrothermal method, followed by low temperature nitriding and phosphating.

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Liquiritin (LIQ) is a flavonoid known for its cardioprotective properties, extracted from Fisch. The purpose of the present study was to investigate the protective mechanism of LIQ against hypoxia/reoxygenation (H/R) injury through experiments, with the goal of enhancing its pharmacological effects. Initially, network pharmacology was employed to explore the targets and mechanisms of LIQ.

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Article Synopsis
  • Nitinol Tubridge flow diverter (TFD) is gaining popularity in China for treating intracranial aneurysms (IAs), and a study analyzed its real-world safety outcomes over two years in 235 centers.
  • The study examined 1281 unruptured aneurysms and found 12-month neurological morbidity and death rates of 5.4% and 2.8%, with ischemic strokes being the most frequent complication (4.2%).
  • Key independent risk factors for complications included male gender, older age, larger aneurysm size, and location on the basilar artery (BA), but overall, 93.2% of patients had good outcomes.
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Background: About 25% of pregnant women experience bleeding in the early stage, and half of them eventually progress to pregnancy loss. Progesterone serves as a useful biomarker to predict miscarriage in threatened miscarriage, yet its performance is still debated.

Aim: To evaluate the performance of single serum progesterone predicting miscarriage in early pregnant patients with threatened miscarriage.

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The vehicle suspension system is a complex system with multiple variables, nonlinearity and time-varying characteristics, and the traditional variable universe fuzzy PID control algorithm has the problems of over-reliance on expert experience and non-adaptive adjustment of the contracting-expanding factor parameters, which make it difficult to achieve a better control effect. In this paper, the system error e(t) and its change rate ec(t) are introduced into the contracting-expanding factor as dynamic parameters to realize the adaptive adjustment of the contracting-expanding factor parameters, and propose a variable universe fuzzy PID control based on dynamic adjustment functions (VUFP-DAF), which uses the real-time contracting-expanding factor to realize the adaptive adjustment of the fuzzy universe, so as to improve the ride comfort of vehicles. The research results show that the proposed VUFP-DAF has strong adaptability and can effectively improve the ride comfort and handling stability of vehicles under different speeds and road excitations, providing a certain technical basis for the development of the semi-active suspension system.

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Scientific-grade cameras are frequently employed in industries such as spectral imaging technology, aircraft, medical detection, and astronomy, and are characterized by high precision, high quality, fast speed, and high sensitivity. Especially in the field of astronomy, obtaining information about faint light often requires long exposure with high-resolution cameras, which means that any external factors can cause the camera to become unstable and result in increased errors in the detection results. This paper aims to investigate the effect of displacement introduced by various vibration factors on the imaging of an astronomical camera during long exposure.

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Aims: This study aims to explore the efficacy of reperfusion strategies on the clinical outcomes of ST-elevation myocardial infarction (STEMI) patients over 80 years old in China.

Methods And Results: A retrospective cohort study was performed on STEMI patients over 80 years old who underwent reperfusion strategies and no reperfusion between January 2014 and December 2021, based on the Chinese Cardiovascular Association (CCA) Database-Chest Pain Center. This study included a total of 42,699 patients (mean age 84.

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Sodium sulfite (SS) is a biological derivative of the air pollutant sulfur dioxide, and is often used as a food and pharmaceutical additive. Improper or excessive SS exposure in liver cell death. The phenomenon of simultaneous regulation of apoptosis, necroptosis, and pyroptosis is defined as PANoptosis.

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Objective: To analyze the content of unlicensed GS-441524-like products being used as a largely successful at-home treatment for cats suspected to have FIP. The remdesivir content and pH were also measured.

Sample: 127 injectable and oral samples from 30 of the most popular brands of black market producers.

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The overexpression of neddylation modification is frequently observed in human tumor cells. Targeting the neddylation pathway has been recognized as a promising anticancer therapeutic strategy, thus discovering potent and selective neddylation inhibitors is of great importance. In this study, we designed and synthesized a series of novel neddylation inhibitors bearing benzothiazole scaffolds by molecular hybridization strategy and all compounds were evaluated for antiproliferative activity against MGC-803, MCF-7, A549 and KYSE-30 cell lines.

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Article Synopsis
  • * The study successfully employs a pre-lithiation strategy to create a polycrystalline form of ZnO (Li-ZnO), enhancing its electronic conductivity and reducing volume expansion during use.
  • * After testing, Li-ZnO shows significant reversible capacity with good cycling stability, maintaining a high capacity after multiple charge-discharge cycles, underscoring the importance of innovative anode materials.
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Cultural Mismatch Theory (CMT) suggests mismatch between interdependent home norms and independent school norms can hinder academic success for historically marginalized (HM) students who are more likely to be first-generation college students and underrepresented in science, technology, engineering, and math (STEM). The effectiveness of a CMT intervention to increase science self-efficacy was tested among 213 ( = 22.99, = 5.

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Understanding pesticide residue patterns in crops is important for ensuring human health. However, data on residue accumulation and distribution in cowpeas grown in the greenhouse and open field are lacking. Our results suggest that acetamiprid, chlorantraniliprole, cyromazine, and thiamethoxam residues in greenhouse cowpeas were 1.

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Colorectal cancer (CRC) is one of the most prevalent and deadliest illnesses all around the world. Growing proofs demonstrate that tumor-associated macrophages (TAMs) are of critical importance in CRC pathogenesis, but their mechanisms remain yet unknown. The current research was designed to recognize underlying biomarkers associated with TAMs in CRC.

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Article Synopsis
  • The study evaluated the safety and efficacy of the Gekko coil system for treating intracranial aneurysms (IAs) compared to Axium coils in a randomized trial across 11 centers in China.
  • The results showed similar successful aneurysm occlusion rates at 6 months—96.08% for Gekko and 96.12% for Axium—indicating no significant difference.
  • The trial concluded that the Gekko coil system is a safe and effective alternative to the Axium system for IA embolization in clinical practice.
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