Publications by authors named "Guangwen Cheng"

Objectives: This study sought to design and verify a nomogram that utilizes ultrasonographic and clinical indicators to differentiate between intrahepatic cholangiocarcinoma (ICC) and hepatocellular carcinoma (HCC).

Methods: From November 2022 to September 2024, 136 patients with confirmed ICC or HCC were enrolled and randomly assigned to training and validation groups in a 7:3 ratio. Preoperative B-mode ultrasound, contrast-enhanced ultrasound, two-dimensional shear wave elastography features, and clinical indicators were retrieved and compared.

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Background: Hepatic steatosis, characterized by fat accumulation in hepatocytes, can result from metabolic dysfunction-associated steatotic liver disease (MASLD), infections, alcoholism, chemotherapy, and toxins. MASLD is diagnosed imaging or biopsy with metabolic criteria and may progress to metabolic dysfunction-associated steatohepatitis, potentially leading to fibrosis, cirrhosis, or cancer. The coexistence of hepatic steatosis with chronic hepatitis B (CHB) is mainly related to metabolic factors and increases mortality and cancer risks.

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Immune checkpoint blockade (ICB) is combined with sonodynamic therapy (SDT) to increase response rates and enhance anticancer efficacy. However, the "always on" property of most sonosensitizers in reducing tumor microenvironment (TME) compromises the therapeutic outcome of sonoimmunotherapy and exacerbates adverse side effects. Precisely controllable strategies combining sulfur dioxide (SO) gas therapy with cancer immunotherapy can address these issues but remain lacking.

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Background: The association between vitamin C status and Alzheimer's disease (AD) mortality remains unclear.

Methods: A total of 4864 adults aged 60 years or above from the National Health and Nutrition Examination Survey III 1988-1994 were included in this study. Serum vitamin C levels were measured by the fully automated electrochemiluminescence immunoassay.

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Purpose: To conduct a head-to-head comparison between deep learning (DL) and radiomics models across institutions for predicting microvascular invasion (MVI) in hepatocellular carcinoma (HCC) and to investigate the model robustness and generalizability through rigorous internal and external validation.

Methods: This retrospective study included 2304 preoperative images of 576 HCC lesions from two centers, with MVI status determined by postoperative histopathology. We developed DL and radiomics models for predicting the presence of MVI using B-mode ultrasound, contrast-enhanced ultrasound (CEUS) at the arterial, portal, and delayed phases, and a combined modality (B + CEUS).

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Purpose: Posthepatectomy liver failure (PHLF) is a major cause of postoperative mortality in hepatocellular carcinoma (HCC) patients. The study aimed to develop a method based on the two-dimensional shear wave elastography and clinical data to evaluate the risk of PHLF in HCC patients with chronic hepatitis B.

Methods: This multicenter study proposed a deep learning model (PHLF-Net) incorporating dual-modal ultrasound features and clinical indicators to predict the PHLF risk.

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Background: Liver stiffness (LS) measurement with two-dimensional shear wave elastography (2D-SWE) correlates with the degree of liver fibrosis and thus indirectly reflects liver function reserve. The size of the spleen increases due to tissue proliferation, fibrosis, and portal vein congestion, which can indirectly reflect the situation of liver fibrosis/cirrhosis. It was reported that the size of the spleen was related to posthepatectomy liver failure (PHLF).

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Purpose: We investigated the optimal number of valid measurements (VMs) for the attenuation coefficient (AC) to assess liver steatosis using attenuation imaging (ATI) and explored factors that may affect AC measurement in patients with metabolic dysfunction-associated fatty liver disease (MAFLD).

Materials And Methods: A total of 139 patients with MAFLD who underwent ATI and liver biopsy were enrolled. Hepatic steatosis was graded as S0-3 according to the SAF scoring system.

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Background And Aims: To evaluate the diagnostic performance of dual elastography (dual-elasto) in continuous differentiation of liver fibrosis and inflammation in a large prospective cohort of patients with chronic HBV.

Approach And Results: Adults with positive HBsAg for at least 6 months were recruited from 12 medical centers. Participants underwent dual-elasto evaluations.

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An all-in-one therapy for cooperatively fighting cancer, infection and boosting wound repair is exceedingly demanded for patients with advanced superficial cancers or after surgical intervention to avoid multiple drug abuse and resultant adverse effects. Here, the ultrasound-activated nanosonosensitizer PHMP that integrated peroxymonosulfate (PMS) into the Pd-catalyzed hydrogenated mesoporous titanium dioxide (PHM) was dexterously designed for combined therapy of cancer and infected wound based on oxygen/sulfate dual-radical nanotherapy. Firstly, the PHM with single crystal structure and abundant oxygen deficiencies exhibited excellent ultrasound-excited reactive oxygen species (ROS) production for enhanced sonodynamic therapy (SDT) under the support of Pd nanozyme-mediated O supply.

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Background: Procyanidins have antioxidative properties that may protect against age-related brain oxidative stress. Previous studies indicated that procyanidin-rich foods could improve cognitive function and prevent neurodegenerative diseases. This study hypothesized that grape seed procyanidins extract (GSPE) would have a favorable effect on cognitive function in elderly people with mild cognitive impairment (MCI).

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Objective: To investigate the association between adherence to healthy dietary patterns, such as Mediterranean dietary pattern(MED), dietary approaches to stop hypertension(DASH), Mediterranean-DASH intervention for neurodegenerative delay with cognitive disorders(MIND), and the incidence of cognitive disorders.

Methods: Prospective studies on the association of MED, DASH and MIND with cognitive disorders in Chinese and English literatures were retrieved from PubMed, Wanfang, CNKI and VIP databases by title/abstract retrieval strategy from database establishment to February 28, 2022. Relative risk and its 95% confidence intervals were extracted to calculated the pooled effect and dose-response relationship.

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Background: Mild cognitive impairment (MCI) induced the majority number of dementia patients. The prevalence of MCI in China varied across studies with different screening tools and diagnostic criteria.

Objective: A systematic review and meta-analysis was conducted to estimate the pooled MCI prevalence among the population aged 55 years and older in China.

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Background: Chronic liver disease is an important cause of liver failure and death worldwide, and liver fibrosis is a common pathological process of most chronic liver diseases. There still lacks a useful tool for evaluating liver fibrosis progression precisely and non-invasively. The purpose of this study was to explore the use of ultrasound radio frequency (RF) signals combined with deep learning approach to evaluate the degree of liver fibrosis quantitatively.

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This study aims to explore the differences of sleep structure between patients with amnestic mild cognitive impairment (aMCI) and elderly people with normal cognition, which will help to provide evidence for the relationship between sleep disturbances and cognitive impairment. A systematic review and meta-analysis were conducted on the literature on sleep parameters obtained by polysomnography or actigraphy in patients with aMCI. The PubMed and EMBASE databases were searched up to April 2020.

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Study Objectives: To examine the association between sleep structure and amnesic mild cognitive impairment (aMCI) in patients with insomnia disorder.

Methods: A total of 256 patients with insomnia disorder were diagnosed by neurologists, 45 of whom were diagnosed with aMCI according to the Petersen criteria, and 45 participants with intact cognition were chosen as controls matched for age and education. A case-control study was conducted to compare sleep structure between aMCI and control patients with insomnia disorder.

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Background: Online information on electronic cigarettes (e-cigarettes) may influence people's perception and use of e-cigarettes. Websites with information on e-cigarettes in the Chinese language have not been systematically assessed.

Objective: The aim of this study was to assess and compare the types and credibility of Web-based information on e-cigarettes identified from Google (in English) and Baidu (in Chinese) search engines.

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The aim of this study is to evaluate the age related changes of T lymphocyte subsets in C57BL/6 mice and immune function. Multi-color immunofluorescence techniques that were used to analyse relative numbers of T lymphocyte subsets include CD4, CD8, naive and memory CD4 and CD8, CD8CD28 T cells in peripheral blood of C57BL/6 mice from different age groups (Group I: 2 months old; Group II: 7 months old; Group III: 21 months old); Splenocytes isolated from different group mice were stimulated with Con A to evaluate the proliferative ability. Compared with group I, group II had a significant reduction in the percentage of CD4, naive CD4 and CD8 T cells and an increase in the percentage of CD8 T cells, while group III had a significant reduction in the percentage of CD4, naive CD4 and CD8 T cells and increase in the percentage of CD8, memory CD4 and CD8 T cells in peripheral blood.

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1-Alkyl-3-methylimidazolium chloride ionic liquids ([Cnmim] Cl, n=4, 6, 8) were prepared. The ionic liquid was then mixed with hydrogen peroxide (H2O2) to form an absorbent. The Hg(0) removal performance of the absorbent was investigated in a gas/liquid scrubber using simulated flue gas.

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