Publications by authors named "Lin-Lin Sun"

Article Synopsis
  • A high portal pressure gradient (PPG) is linked to serious complications in patients with decompensated cirrhosis, but direct measurement is invasive and not practical for regular use.
  • * Researchers aimed to create a deep learning model to predict PPG values and identify patients at high risk for portal hypertension, who might need earlier TIPS treatment.
  • * Using data from 428 patients, a model based on three key measures showed an accuracy of 87.5% in predicting PPG and performed well in external tests, successfully differentiating high-risk patients.
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Article Synopsis
  • Aristolochic acids (AAs) are linked to an increased risk of hepatocellular carcinoma (HCC) due to their ability to influence cell death processes.
  • The study revealed that AAs interact with the p53 protein in liver cancer cells, disrupting its normal function, specifically affecting ferroptosis and the regulation of key genes like GADD45A and NRF2.
  • This interaction leads to down-regulation of GADD45A and up-regulation of NRF2, ultimately promoting tumor growth by inhibiting ferroptosis, suggesting that targeting NRF2 could be a potential therapeutic strategy for liver cancer.
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Lymphocyte activation gene 3 (LAG3), an immune checkpoint molecule expressed on activated T cells, functions as a negative regulator of immune responses. Persistent antigen exposure in the tumor microenvironment results in sustained LAG3 expression on T cells, contributing to T cell dysfunction. Fibrinogen-like protein 1 (FGL1) has been identified as a major ligand of LAG3, and FGL1/LAG3 interaction forms a novel immune checkpoint pathway that results in tumor immune evasion.

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The rebound characteristics of respiratory infections after lifting pandemic control measures were uncertain. From January to November 2023, patients presenting at a teaching hospital were tested for common respiratory viruses and using a combination of antigen, nucleic acid amplification, and targeted next-generation sequencing (tNGS) tests. The number and rate of positive tests per month, clinical and microbiological characteristics were analyzed.

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Introduction: At present, machine learning and image processing technology are widely used in plant disease diagnosis. In order to address the challenges of subjectivity, cost, and timeliness associated with traditional methods of diagnosing potassium deficiency in apple tree leaves.

Methods: The study proposes a model that utilizes image processing technology and machine learning techniques to enhance the accuracy of detection during each growth period.

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Heat shock protein family A member 8 (HSPA8) participates in the folding or degradation of misfolded proteins under stress and plays critical roles in cancer. In this study, we investigated the function of HSPA8 in the development of liver cancer. By analyzing the TCGA transcriptome dataset, we found that HSPA8 was upregulated in 134 clinical liver cancer tissue samples, and positively correlated with poor prognosis.

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Background: Significant histopathologic changes of hepatic injury (SHCHI) play a decisive role in evaluating the condition and initiating antiviral in hepatitis B virus (HBV)-infected patients, especially those with normal or mildly elevated alanine transaminase levels. Considering that non-invasive methods were established through experience with chronic hepatitis C, the aim of this study was to establish and verify a nomogram based on hepatitis B for diagnosing SHCHI.

Methods: Three hundred eighty-four patients who fulfilled requirements for participation were randomly assigned to training cohort (n=270) and validation cohort (n=114) according to 7:3.

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Purpose: To explore the risk of fatty liver and type 2 diabetes with quantitative parameters of abdominal computed tomography (CT) in a non-obese population.

Methods: A retrospective analysis of abdominal CT and hospitalization records of inpatients admitted from May 2019 to May 2021 were divided into a non-obese control group (n = 143 cases) and a non-obese diabetes group (n = 105 cases). The measured abdominal CT parameters included body width, liver and spleen CT values, and the ratio of the liver CT value to the spleen CT value (L/S ratio).

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Ferroptosis is a recently recognized type of programmed cell death and emerges to play an important role in cancer biology and therapies. This unique form of cell death, characterized by iron-dependent lipid peroxidation, is exquisitely regulated by the cellular metabolic networks such as lipid, iron and amino acid metabolism. The sensitivity to ferroptosis varies among different tumors.

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Long intergenic non-coding RNA 00839 (LINC00839) has been verified as a pro-metastasis factor in malignancies. However, the significance of LINC00839 in nasopharyngeal carcinoma (NPC) has yet to be illuminated, as well as its underlying mechanism. Here, we disclosed that LINC00839 is highly expressed in NPC.

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Background/aim: Stroke is among the most common causes of disability and death in highly developed countries and China. We sought to study the role of oleanolic acid in cerebral ischemia-reperfusion injury.

Methods: Middle cerebral artery occlusion (MCAO) was performed to induce cerebral ischemia-reperfusion injury in mice.

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Purpose: On the basis of stimulus-organism-response (SOR) theory, this study extends the work of Lee and Kwon by examining the concept of perceived usefulness as a mediator between emotional interaction (familiarity and intimacy) and purchase intention. The consumer purchase decision model, in which product type plays a moderating role in the linking mechanism, is also explored.

Methods: We proposed a consumer purchase decision model, and empirically examined it by means of an online questionnaire survey.

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The third-generation of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs), represented by osimertinib, has achieved remarkable clinical outcomes in the treatment of non-small-cell lung cancer (NSCLC) with EGFR mutation. However, resistance eventually emerges in most patients and the underlying molecular mechanisms remain to be fully understood. In this study, we generated an osimertinib-acquired resistant lung cancer model from a NSCLC cell line H1975 harboring EGFR L858R and T790M mutations.

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The Triboelectric Nanogenerator has demonstrated broad applications in energy, environmental, and electronic fields, as well as huge potential in the mechanism study of contact electrification, since 2012. Herein, we employed a Triboelectric Nanogenerator working in vertical contact-separation mode to study the electrification performance of the polymer under redox atmosphere. The results show that the electron-withdrawing ability of the polymer is weakened with increasing O concentration.

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Most marine copiotrophic bacteria can produce extracellular enzymes to degrade biopolymers into bio-available smaller solutes, while oligotrophic bacteria usually cannot. Bacterial extracellular enzymes and enzymatic products can be a common resource that could be utilized by both copiotrophs and oligotrophs; when present, oligotrophs may outcompete the enzyme-producing copiotrophs. However, copiotrophs and oligotrophs consistently coexist in the ocean.

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The quantum limit is quite easy to achieve once the band crossing exists exactly at the Fermi level (E) in topological semimetals. In multilayered Dirac fermion systems, the density of Dirac fermions on the zeroth Landau levels (LLs) increases in proportion to the magnetic field, resulting in intriguing angle- and field-dependent interlayer tunneling conductivity near the quantum limit. BaGa is an example of a multilayered Dirac semimetal with its quasi-2D Dirac cone located at E, providing a good platform to study its interlayer transport properties.

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Extracellular enzymes, initiating the degradation of organic macromolecules, are important functional components of marine ecosystems. Measuring seawater extracellular enzyme activity (EEA) can provide fundamental information for understanding the biogeochemical cycling of organic matter in the ocean. Here we investigate the patterns of EEA and the major factors affecting the seawater EEA of Chinese marginal seas.

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A Gram-stain-negative, aerobic, flagellated, rod-shaped bacterial strain, SM1705, was isolated from a surface seawater sample collected from the South China Sea. The strain grew at 10-40 °C and with 0.5-13.

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A Gram-stain-negative, aerobic, oxidase- and catalase-positive, non-flagellated, non-gliding, yellow-pigmented, and rod-shaped bacterium with appendages, designated strain SM1704, was isolated from surface seawater collected from the South China Sea. The strain grew at 15-42 °C and with 1-10 % NaCl. It hydrolysed aesculin, but did not hydrolyse gelatin and Tween 80 nor reduce nitrate to nitrite.

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The streamlining hypothesis is generally used to explain the genomic reduction events related to the small genome size of free-living bacteria like marine bacteria SAR11. However, our current understanding of the correlation between bacterial genome size and environmental adaptation relies on too few species. It is still unclear whether there are other paths leading to genomic reduction in free-living bacteria.

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SM1504 was isolated from Arctic surface seawater and classified as a novel genus of the phylum . To date, no genomes have been reported, their genomic compositions and metabolic features are still unknown. Here, we reported the complete genome sequence of SM1504, which comprises 5,379,839 bp with an average GC content of 37.

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Background: The link between cardiac diseases and cognitive deterioration has been accepted from the concept of "cardiogenic dementia", which was proposed in the late 1970s. However, the molecular mechanism is unclarified.

Methods: The two animal models used in this study were cardiac-specific overexpression of microRNA-1-2 transgenic (Tg) mice and a myocardial infarction mouse model generated by left coronary artery ligation (LCA).

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Alzheimer's disease (AD) is a complex neurodegenerative disease and the most common cause of dementia among the elderly. There has been increasing recognition of sex differences in AD prevalence, clinical manifestation, disease course and prognosis. However, there have been few studies on the molecular mechanism underlying these differences.

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