Publications by authors named "Pengpeng Wu"

Japanese encephalitis virus (JEV), a leading cause of viral encephalitis in Asia and the Western Pacific, is regulated by type I interferon (IFN) signaling pathway, in which STAT2 is critical. However, STAT2's exact role in JEV-mediated IFN evasion remains unclear. Existing murine models of JEV infection predominantly employ high viral titers to induce encephalitis and primarily use immunocompetent or IFN receptor-deficient mice, limiting their utility for studying JEV's IFN evasion mechanisms.

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Surface reconstruction is a common phenomenon during electrode processes, occurring on the surface of electrocatalysts. While corrosion-engineering approaches show promise in this reconstruction, the precise control of surface reaction kinetics remains a significant challenge. In this work, a corrosion kinetics-controlled strategy using a hypophosphite corrosion inhibitor was proposed to achieve a uniform nickel-iron oxyhydroxide (p-(Fe,Ni)OOH) layer through controlled corrosion-induced reconstruction.

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Background: Traffic-related air pollution (TRAP) poses significant risks to human health, particularly in urban areas with high traffic volumes. Intake fraction (iF) quantifies the relationship between emissions and exposure, defined as the ratio of the total inhalation increment of all exposed individuals in a target population to the emissions from specific pollution sources over a certain period.

Objective: The overarching objective of this study is to unravel the underlying value and significance of the iF method in evaluating TRAP exposure risks, while also exploring its future development trajectories and potential avenues for application.

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As important modulators of human purinergic signaling, P2X1 receptors form homotrimers to transport calcium, regulating multiple physiological processes, and are long regarded as promising therapeutic targets for male contraception and inflammation. However, the development of drugs that target the P2X1 receptor, such as the antagonist NF449, is greatly hindered by the unclear molecular mechanism of ligand binding modes and receptor activation. Here, we report the structures of the P2X1 receptor in complex with the endogenous agonist ATP or the competitive antagonist NF449.

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In order to reduce turnout rail wear, the paper establishes a coupled dynamics model and a turnout rail wear model that consider the true profile of the turnout rail, the vehicle's continuous traction force while passing, and the operational resistance. Comparative analysis of various models for predicting turnout rail wear indicates that the wear energy model is better suited for this purpose. The ideal profile update step for the turnout rail is 0.

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Spacecraft recovery technology is crucial in the field of aerospace, in which the parachute plays a key role in slowing down the descent speed of the spacecraft and realizing a smooth landing. In order to construct a dynamically adjustable parachute deployment strategy, it is necessary to measure the parachute dynamic load accurately in real-time. However, the existing sensor measurement scheme makes it difficult to meet the measurement requirements due to its large structure and complex wiring.

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Inhaled dose is crucial for accurately assessing exposure to air pollution, determined by pollutant concentration and minute ventilation (VE). However, the VE predictive models and its application to assess the health effects of air pollution are still lacking. In this study, we developed VE predictive models using machine learning techniques, utilizing data obtained from eighty participants who underwent a laboratory cardiopulmonary exercise test (CPET).

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Article Synopsis
  • Air pollution is really bad for our health, especially our lungs and hearts.
  • Exercising can help our lungs work better and make us healthier, but being outside while exercising means we can breathe in the bad air.
  • Researchers need to do more studies to find out how much pollution is too much when we are active outside, so people can stay safe while exercising.
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Article Synopsis
  • Prostate cancer is the most common cancer in men globally, and while Abiraterone is a treatment option, it faces challenges like drug resistance and toxicity.
  • Researchers have developed two new compounds, Abi-DZ-1 and Abi-783, using a near-infrared fluorescent dye (MHI-148), which specifically target prostate cancer cells without affecting normal cells.
  • Abi-DZ-1 has shown promising results in slowing tumor growth in animal models and could be a future tool for targeted imaging and therapy in prostate cancer treatment.
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Epilepsy is a common neurological disorder that is primarily treated with antiseizure medications (ASMs). Although dozens of ASMs are available in the clinic, approximately 30% of epileptic patients have medically refractory seizures; other limitations in most traditional ASMs include poor tolerability and drug-drug interactions. Therefore, there is an urgent need to develop alternative ASMs.

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We report a case of a 10-year-old male patient with pulmonary artery aneurysm (PAA) caused by infective endarteritis of the pulmonary artery attributed to patent ductus arteriosus. He was found to have patent ductus arteriosus at the age of 2, but he was not treated because of the absence of symptoms and normal physical development. He sought medical attention for fever and cough in August 2022.

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Circular RNAs (circRNAs), which are produced post-splicing of pre-mRNAs, are strongly linked to the emergence of several tumor types. The initial stage in conducting follow-up studies involves identifying circRNAs. Currently, animals are the primary target of most established circRNA recognition technologies.

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Aim: At present, the relationship between serum homocysteine (Hcy), fibrinogen (FIB), lipoprotein-a (LPa), and PAD is uncertain, and there has been no meta-analysis to establish the dose-response relationship between their exposure levels and PAD.

Methods And Results: Relevant literature published in PubMed, Embase, and Web of Science was retrieved. The robust error meta-regression method was used to assess the linear and non-linear dose-response relationship between exposure level and PAD risk.

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[F]FDG as a probe of PET/CT is a radiolabeled glucose analogue taken up by most cells, but its batch activity is limited. [Ga]FAPI-04 is a promising alternative based on a fibroblast activation protein-specific inhibitor (FAPI) labeled with radiotracer FAP. Here, a series of databases suggested that FAP expression was significantly different in pancreatic cancer compared to normal tissue.

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Owing to the high heterogeneity of pancreatic cancer, patient-derived xenografts (PDX) can compensate for the defects of cell line-derived xenografts (CDX) and also better preserve the heterogeneity and tumor microenvironment of primary tumors. Further, gemcitabine, which is used for the treatment of various cancers, is prone to tumor drug resistance, and this limits its sustained efficacy. Therefore, in this study, our objective was to screen appropriate individual therapeutic drugs for pancreatic cancer.

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Colletotrichum, a hemibiotrophic fungal pathogen with a broad host range, causes a yield-limiting disease called anthracnose. Stylo (Stylosanthes) is a dominant pasture legume in tropics and subtropics, and anthracnose is one of its most destructive disease. Resistance mechanisms against anthracnose in stylo are poorly understood, thus hindering the development of resistant varieties.

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Silver antibacterial compounds (SACs) and quorum sensing inhibitors (QSIs), as the potential antibiotic substitutes, have been recommended to prevent and treat microbial infections for the purpose of controlling the increasingly serious bacterial resistance induced by the abuse of antibiotics. However, there is little information regarding the resistance risk of these compounds, especially their mixtures. In this study, bacterial mutation and RP4 plasmid conjugative transfer among bacteria were used to characterize the bacterial endogenous and exogenous resistance, respectively.

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Prostate cancer (PC) is a heterogeneous disease characterized by variable morphological patterns. Thus, establishing a patient-derived xenograft (PDX) model that retains the key features of the primary tumor for each type of PC is important for appropriate evaluation. In this study, we established PDX models of hormone-naïve (D17225) and castration-resistant (B45354) PC by implanting fresh tumor samples, obtained from patients with advanced PC under the renal capsule of immune-compromised mice.

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---Farnesylthiosalicylic acid (FTS) is a Ras inhibitor that exhibits desirable anticancer property and currently undergoing clinical trials for pancreatic cancer (PC). However, its poor water solubility and low bioavailability have severely hampered clinical applications. A strategy to improve FTS bioavailability is to develop a suitable drug delivery method.

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New strategies to treat advanced bladder cancer are urgently required. A patient-derived xenograft (PDX) model has become a useful tool to evaluate chemotherapeutics and investigate personalized cancer treatment options. In this study, fresh human bladder cancer specimens (C09303 and C21391) were transplanted subcutaneously into nude mice to establish PDX models.

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Heat shock protein Hsp16.3 is closely related to latent Mycobacterium tuberculosis (MTB) infection and plays an important role in sustained survival when MTB is dormant. In this study, the Hsp16.

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Newcastle disease virus (NDV) infection causes serious problems in laying chickens, like reducing egg production, increasing rate of abnormal eggs in spite of strict vaccination in layer farms program. A new evaluation system is needed to show complete protection of the immunization in laying chickens based on the egg-laying performance, rather than clinical signs of the disease. In this study, laying chickens with different anti-NDV HI (hemagglutination-inhibition) antibody titer after vaccination were divided into different groups.

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S-thanatin (Ts) was a short antimicrobial peptide with selective antibacterial activity. In this study, we aimed to design a drug carrier with specific bacterial targeting potential. The positively charged Ts was modified onto the liposome surface by linking Ts to the constituent lipids via a PEG linker.

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This paper describes the complete genomic sequences of two virulent Newcastle disease virus (NDV) isolates, Shaanxi06 (prevalent genotype VIId) and Shaanxi10 (novel sub-genotype VIi), from sick crested ibises. The genomes of both isolates were 15,192 nt long and consisted of six genes in the order of 3'-NP-P-M-F-HN-L-5'. The genomes of the two isolates were highly similar to other reference NDV strains.

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