Publications by authors named "SiTong Liu"

Background: The antibiotic resistance of Pseudomonas aeruginosa (PA) is increasingly severe in bronchiectasis patients. However, there is currently a lack of research on the clinical outcomes of carbapenem-resistant PA (CRPA) isolation in hospitalized exacerbations of bronchiectasis (HEB) patients. We investigated the incidence, risk factors, and clinical outcomes of PA and CRPA isolation in HEB patients.

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During viral infections, autophagy functions as a cell-intrinsic defense mechanism by facilitating the delivery of virions or viral components to the endosomal/lysosomal pathway for degradation. In this study, we report that internalized African swine fever virus (ASFV) virions enter autolysosomes during the early phase of viral infection. Autophagy selectively targets the major capsid protein p72 within the ASFV virion.

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MicroRNAs (miRNAs) have key roles in the pathological processes of neuropathic pain. Here, our aim was to elucidate the function of miR-200a-3p as well as its related regulatory mechanism in neuropathic pain. An animal model of neuropathic pain was established by chronic constriction injury (CCI) induction.

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  • Photothermal therapy (PTT) shows promise in combating cancer but faces challenges, including inflammation and recurrence risks; combining PTT with anti-inflammatory treatments may improve its effectiveness.
  • The study developed mesoporous dopamine nanoparticles (MAGM NPs) using Gd, arginine, and the anti-inflammatory drug meloxicam, aiming to enhance anti-cancer and anti-inflammatory effects while enabling MRI imaging.
  • Test results on a mouse model of breast cancer revealed that MAGM NPs improved targeted anticancer effects under MRI guidance, while also boosting photothermal efficiency and reducing inflammation.
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Background: Currently, there is a lack of research on multi-drug resistant Pseudomonas aeruginosa (MDR-PA) isolation in bronchiectasis-related hemoptysis. The aim of this study to analyze the risk factors for recurrent hemoptysis following bronchial artery embolization (BAE) and compare the recurrent hemoptysis-free rates between MDR-PA, non-MDR-PA, and non-PA isolation.

Methods: A retrospective study was performed of patients diagnosed with idiopathic bronchiectasis-related recurrent hemoptysis who underwent BAE at an university-affiliated hospital.

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Organophosphate esters (OPEs) have attracted extensive attention due to their toxic effects on human health and biological systems as plasticizers and flame retardants. This study focused on exploring a green approach to get toxicity mechanisms that used less solvents or organisms. The toxicity values of selected organophosphate esters including tri (2-chloroethyl) phosphate (TCEP), tri (1, 3-dichloro-2-propyl) phosphate (TDCP), tripropyl phosphate (TPrP), tri-n-butyl phosphate (TnBP), and tritolyl Phosphate (TCrP) to Photobacterium phosphoreum were determined.

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Nonalcoholic steatohepatitis (NASH) is a prevalent chronic disease, yet its exact mechanisms and effective treatments remain elusive. Nuclear receptor subfamily 5 group A member 2 (NR5A2), a transcription factor closely associated with cholesterol metabolism in the liver, has been hindered from comprehensive investigation due to the lethality of NR5A2 loss in cell lines and animal models. To elucidate the role of NR5A2 in NASH, we generated hepatocyte-specific knockout mice for Nr5a2 (Nr5a2) and examined their liver morphology across different age groups under a regular diet.

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Ethnopharmacological Relevance: Hand, foot, and mouth disease (HFMD) is mainly caused by various of enteroviruses such as enterovirus 71 (EVA71), coxsackievirus A16 (CVA16), CVA6, and CVA10 in infants and children under 5 years old. During the past 5 years, CVA4 has become the dominant pathogen resulting in HFMD in China. However, there are no effective vaccines and antiviral drugs available.

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  • - The study focused on ischemic stroke (IS) among hypertensive patients, aiming to identify risk and prognostic factors using data from the MIMIC-IV database.
  • - Various statistical and machine learning methods were utilized to analyze the data, with the Gradient Boosted Decision Tree (GBDT) model achieving the highest prediction accuracy and AUC values.
  • - Results highlighted several risk factors and their interactions that contribute to IS occurrence and prognosis in hypertensive patients, offering valuable insights for clinical practices.
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  • Bacterial cooperation, especially between anammox and symbiotic bacteria, is crucial for efficient nitrogen removal in wastewater treatment, particularly under varying NH4-N concentrations.
  • Research showed that anammox bacteria benefit from antioxidants like vitamin B6 produced by symbiotic bacteria, which help them cope with high NH4-N and fluctuating oxygen levels.
  • When faced with increased NH4-N, anammox bacteria reduce amino acid supply to save metabolic energy, leading some bacterial generalists to specialize and improve microbial community stability and functionality.
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  • Anammox bacteria are typically anaerobic but this study shows they can grow in aerobic conditions, producing more nitrate without losing total nitrogen.
  • The bacteria utilize nitrite oxidation and hydrazine dehydrogenation for carbon fixation while their hydrazine dehydrogenase is inhibited in aerobic settings.
  • Findings also indicate that various metabolic pathways are upregulated in aerobic conditions, highlighting the bacteria's adaptation to oxygen through antioxidative enzymes like bacterioferritins.
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Nonalcoholic steatohepatitis (NASH) is a primary cause of liver cirrhosis and hepatocellular carcinoma, presenting a significant and unmet medical challenge. The necessity to investigate the molecular mechanisms underlying NASH is highlighted by the observed decrease in programmed cell death 4 (PDCD4) expression in NASH patients, suggesting that PDCD4 may play a protective role in maintaining liver health. In this study, we identify PDCD4 as a natural inhibitor of NASH development in mice.

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()-1, 3-Butanediol (1, 3-BDO) is an important intermediate in the synthesis of aromatics, pheromones, insecticides, and beta-lactam antibiotics. The KRED20 is a robust NADH-dependent ketoreductase identified from sp. .

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Bacterial communication could affect their interactions, but whether this regulation has "intelligence" is still unknown. Here, we operated an anammox reactor under temperature gradient from 35 °C to 15 °C. As results, expression abundance of bacterial communication genes increased by 12 % significantly after temperature declined.

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Premium green tea is a high-value agricultural product significantly influenced by its geographical origin, making it susceptible to food fraud. This study utilized nuclear magnetic resonance (NMR) spectroscopy to perform chemical fingerprint analysis on 78 Longjing tea (LJT) samples from both protected designation of origin (PDO) regions (Zhejiang) and non-PDO regions (Sichuan, Guangxi, and Guizhou) in China. Unsupervised algorithms and heatmaps were employed for the visual analysis of the data from PDO and non-PDO teas while exploring the feasibility of linear and nonlinear machine-learning algorithms in discriminating the origin of LJT.

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Scented green tea () is a type of reprocessed green tea produced by scenting with flowers. To investigate the differences in the volatiles of scented green tea processed with four different flowers (, , , and ), gas chromatography-ion mobility spectrometry (GC-IMS) and gas chromatography-mass spectrometry (GC-MS) were employed to detect and identify the volatile compounds in the four types of scented teas. GC-IMS and GC-MS identified 108 and 101 volatile compounds, respectively.

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  • Microplastics (MPs) pollution is gaining attention globally, especially in the Bohai Rim region of northern China, which lacks detailed assessments despite human activity affecting its rivers.
  • Researchers collected data from 11 estuaries, finding overall MPs pollution is low, but specific areas show potential ecological risks primarily from PVC.
  • The study modeled MPs outflow from 22 rivers, revealing that Shandong province contributes over 80% of the outflow, and highlights that small and medium-sized rivers are significant contributors, stressing the need for tailored pollution control measures.
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Recently, the application of two-dimensional (2D) piezoelectric materials has been seriously hindered because most of them possess only in-plane piezoelectricity but lack out-of-plane piezoelectricity. In this work, using first-principles calculation, by atomic substitution of penta-graphene (PG) with tiny out-of-plane piezoelectricity, we design and predict stable 2D X-PG (X = Si or Ge) semiconductors with excellent in-plane and out-of-plane piezoelectricity and extremely high in-plane hole mobility. Among them, Ge-PG exhibits better performance in all aspects with an in-plane strain piezoelectric coefficient = 8.

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Point-of-care testing (POCT) is rapid, exhibits highly sensitive performance, can facilitate home self-testing and avoids cross-contamination. Herein, we developed a biosensor that combines Si-OH magnetic bead (MB)-based fast RNA extraction, reverse transcription-loop-mediated isothermal amplification (RT-LAMP), CRISPR-Cas12a, and lateral flow assay (LFA) for rapid detection of SARS-CoV-2 RNA within 1.5 h.

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Although granular floatation has been recognized as a significant issue hindering the application of high-rate anammox biotechnology, limited knowledge is available about its causes and control strategies. This study proposed a novel control strategy by adding folate, and demonstrated its role in the granular floatation alleviation through long-term operation and granular characterizations. It was found that the floatation of anammox granular sludge was obviously relieved with the decreased sludge floatation potential by 67.

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Background And Aim: Identifying a more suitable marker among various measures of adiposity, demonstrating strong associations and predictive ability for clinical use, remains a topic of debate. Weight-adjusted waist index (WWI) has been proposed as a novel index of adiposity, yet its exploration is limited, especially in Chinese populations. This study seeks to examine the associations between body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), waist-to-height ratio (WHTR), weight-adjusted waist index (WWI), waist circumference divided by body mass to the power of 0.

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  • Atrial fibrillation (AF) increases the risk of stroke and death, and this study investigates how β-catenin may influence atrial fibrosis in humans, using human right atrial appendage (hRAA) tissues.
  • The research compared β-catenin levels in AF patients versus those with normal sinus rhythm, and also used mice and primary cells to explore β-catenin's role in AF development.
  • Key findings showed that AF patients had wider gaps in cardiomyocyte junctions, increased β-catenin expression, decreased gap junction proteins, and that inhibiting β-catenin could prevent both atrial fibrosis and AF in model mice.
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Synopsis of recent research by authors named "SiTong Liu"

  • - Sitong Liu's recent research encompasses innovative approaches in nanotechnology and microbiology, particularly focusing on developing mesoporous polydopamine nanotherapeutics to enhance cancer photothermal therapy while addressing inflammatory responses and recurrence risks.
  • - Liu has also investigated the implications of multi-drug resistant Pseudomonas aeruginosa in recurrent hemoptysis among patients with idiopathic bronchiectasis, revealing it as an independent risk factor in a retrospective cohort study.
  • - Additionally, the research explores the environmental impact of organophosphate esters and the role of NR5A2 in nonalcoholic steatohepatitis, contributing significant findings towards understanding toxicity mechanisms and metabolic disorders.