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  1. Article ; Online: Optimization of under-sampling phase detection accuracy in phase laser ranging.

    Pan, Yingling / Ji, Rongyi / Xie, Ziqi / Gao, Meng / Dong, Dengfeng / Zhou, Weihu / Li, Guicun

    Applied optics

    2024  Volume 63, Issue 4, Page(s) 1022–1031

    Abstract: Under-sampling is an advantageous way for lowering sampling circuit complexity in phase laser ranging while maintaining high modulated frequency operation. Improving the accuracy of the ranging system is the aim of the proposed selection criteria with ... ...

    Abstract Under-sampling is an advantageous way for lowering sampling circuit complexity in phase laser ranging while maintaining high modulated frequency operation. Improving the accuracy of the ranging system is the aim of the proposed selection criteria with involved under-sampling parameters. These parameters include signal frequency, sampling frequency, and calculation points. Setting the number of one periodic sampling points to be an integer power of 2 (
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.510986
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Marine Natural Products as Novel Treatments for Parasitic Diseases.

    Cheng, Wenbing / Huang, Yanbing / Gao, Haijun / Bold, Bolor / Zhang, Ting / Yang, Dengfeng

    Handbook of experimental pharmacology

    2024  

    Abstract: Parasitic diseases including malaria, leishmaniasis, and trypanosomiasis have received significant attention due to their severe health implications, especially in developing countries. Marine natural products from a vast and diverse range of marine ... ...

    Abstract Parasitic diseases including malaria, leishmaniasis, and trypanosomiasis have received significant attention due to their severe health implications, especially in developing countries. Marine natural products from a vast and diverse range of marine organisms such as sponges, corals, molluscs, and algae have been found to produce unique bioactive compounds that exhibit promising potent properties, including antiparasitic, anti-Plasmodial, anti-Leishmanial, and anti-Trypanosomal activities, providing hope for the development of effective treatments. Furthermore, various techniques and methodologies have been used to investigate the mechanisms of these antiparasitic compounds. Continued efforts in the discovery and development of marine natural products hold significant promise for the future of novel treatments against parasitic diseases.
    Language English
    Publishing date 2024-03-31
    Publishing country Germany
    Document type Journal Article
    ISSN 0171-2004
    ISSN 0171-2004
    DOI 10.1007/164_2024_712
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Sk-Conv and SPP-based UNet for lesion segmentation of coronary optical coherence tomography.

    Wang, Zhan / Zheng, Jiawei / Jiang, Peilin / Gao, Dengfeng

    Technology and health care : official journal of the European Society for Engineering and Medicine

    2023  Volume 31, Issue S1, Page(s) 347–355

    Abstract: Background: Coronary artery disease (CAD) manifests with a blockage the coronary arteries, usually due to plaque buildup, and has a serious impact on the human life. Atherosclerotic plaques, including fibrous plaques, lipid plaques, and calcified ... ...

    Abstract Background: Coronary artery disease (CAD) manifests with a blockage the coronary arteries, usually due to plaque buildup, and has a serious impact on the human life. Atherosclerotic plaques, including fibrous plaques, lipid plaques, and calcified plaques can lead to occurrence of CAD. Optical coherence tomography (OCT) is employed in the clinical practice as it clearly provides a detailed display of the lesion plaques, thereby assessing the patient's condition. Analyzing the OCT images manually is a very tedious and time-consuming task for the clinicians. Therefore, automatic segmentation of the coronary OCT images is necessary.
    Objective: In view of the good utility of Unet network in the segmentation of medical images, the present study proposed the development of a Unet network based on Sk-Conv and spatial pyramid pooling modules to segment the coronary OCT images.
    Methods: In order to extract multi-scale features, these two modules were added at the bottom of UNet. Meanwhile, ablation experiments are designed to verify each module is effective.
    Results: After testing, our model achieves 0.8935 on f1 score and 0.7497 on mIOU. Compared to the current advanced models, our model performs better.
    Conclusion: Our model achieves good results on OCT sequences.
    MeSH term(s) Humans ; Tomography, Optical Coherence/methods ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/pathology ; Plaque, Atherosclerotic/diagnostic imaging ; Plaque, Atherosclerotic/pathology ; Heart ; Coronary Vessels/diagnostic imaging ; Coronary Vessels/pathology
    Language English
    Publishing date 2023-05-05
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1159961-3
    ISSN 1878-7401 ; 0928-7329
    ISSN (online) 1878-7401
    ISSN 0928-7329
    DOI 10.3233/THC-236030
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The role of cardiac remodeling associated with renal function in mediating cardiovascular event outcomes.

    Lv, Zhi / Fu, Yangzhi / Liu, Chang / Ma, Yao / Yuan, Miao / Ren, Junru / Gao, Dengfeng

    iScience

    2024  Volume 27, Issue 3, Page(s) 109143

    Abstract: The potential impact of renal function-related cardiovascular remodeling on associated cardiovascular risk has not been previously investigated. Hence, we conducted multiple mediation analyses in the UK Biobank study to evaluate this association. Using ... ...

    Abstract The potential impact of renal function-related cardiovascular remodeling on associated cardiovascular risk has not been previously investigated. Hence, we conducted multiple mediation analyses in the UK Biobank study to evaluate this association. Using multiple Cox models, we found lower renal function (estimated glomerular filtration rate based on cystatin C, eGFR-cysC) was independently related to increased risks of various cardiovascular events and mortalities. Multivariable linear regression revealed a progressive relationship between declining eGFR-cysC and adverse left ventricular (LV) remodeling and impaired systolic function. In Cox models, larger LV volume, mass, as well as decreased systolic function, were significantly correlated with adverse events, particularly in heart failure. Mediation analyses showed that undesirable LV remodeling and cardiometabolic diseases were independent mediators. Our study explores the connections between reduced renal function and poor cardiovascular phenotypes, as well as their significant independent role in mediating renal function-cardiovascular outcome relationships.
    Language English
    Publishing date 2024-02-05
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2024.109143
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The relationship between complement C1q and coronary plaque vulnerability based on optical coherence tomography analysis.

    Wang, Yuan / Zheng, Jiawei / Li, Qing / Ma, Yao / Liu, Chang / Deng, Jie / Gao, Dengfeng

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 9477

    Abstract: To determine the association between complement C1q and vulnerable plaque morphology among coronary artery disease (CAD) patients. We conducted a retrospective observational study of 221 CAD patients admitted to The Second Affiliated Hospital of Xi'an ... ...

    Abstract To determine the association between complement C1q and vulnerable plaque morphology among coronary artery disease (CAD) patients. We conducted a retrospective observational study of 221 CAD patients admitted to The Second Affiliated Hospital of Xi'an Jiaotong University. Intravascular optical coherence tomography was utilized to describe the culprit plaques' morphology. Using logistic regression analysis to explore the correlation between C1q and vulnerable plaques, and receiver operator characteristic (ROC) analysis assess the predictive accuracy. As reported, the complement C1q level was lower in ACS patients than CCS patients (18.25 ± 3.88 vs. 19.18 ± 4.25, P = 0.045). The low complement-C1q-level group was more prone to develop vulnerable plaques. In lipid-rich plaques, the complement C1q level was positively correlated with the thickness of fibrous cap (r = 0.480, P = 0.041). Univariate and multivariate logistic regression analyses suggested that complement C1q could be an independent contributor to plaques' vulnerability. For plaque rupture, erosion, thrombus, and cholesterol crystals, the areas under the ROC curve of complement C1q level were 0.873, 0.816, 0.785, and 0.837, respectively (P < 0.05 for all). In CAD patients, the complement C1q could be a valuable indicator of plaque vulnerability.
    MeSH term(s) Humans ; Tomography, Optical Coherence/methods ; Male ; Female ; Plaque, Atherosclerotic/diagnostic imaging ; Plaque, Atherosclerotic/pathology ; Middle Aged ; Complement C1q/metabolism ; Complement C1q/analysis ; Coronary Artery Disease/diagnostic imaging ; Coronary Artery Disease/pathology ; Aged ; Retrospective Studies ; ROC Curve
    Chemical Substances Complement C1q (80295-33-6)
    Language English
    Publishing date 2024-04-25
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Observational Study
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-60128-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Identifying an immunogenic cell death-related gene signature contributes to predicting prognosis, immunotherapy efficacy, and tumor microenvironment of lung adenocarcinoma.

    Li, Xue / Zhang, Dengfeng / Guo, Pengfei / Ma, Shaowei / Gao, Shaolin / Li, Shujun / Yuan, Yadong

    Aging

    2024  Volume 16, Issue 7, Page(s) 6290–6313

    Abstract: Background: Immunogenic cell death (ICD) is a regulated form of cell death that triggers an adaptive immune response. The objective of this study was to investigate the correlation between ICD-related genes (ICDGs) and the prognosis and the immune ... ...

    Abstract Background: Immunogenic cell death (ICD) is a regulated form of cell death that triggers an adaptive immune response. The objective of this study was to investigate the correlation between ICD-related genes (ICDGs) and the prognosis and the immune microenvironment of patients with lung adenocarcinoma (LUAD).
    Methods: ICD-associated molecular subtypes were identified through consensus clustering. Subsequently, a prognostic risk model comprising 5 ICDGs was constructed using Lasso-Cox regression in the TCGA training cohort and further tested in the GEO cohort. Enriched pathways among the subtypes were analyzed using GO, KEGG, and GSVA. Furthermore, the immune microenvironment was assessed using ESTIMATE, CIBERSORT, and ssGSEA analyses.
    Results: Consensus clustering divided LUAD patients into three ICDG subtypes with significant differences in prognosis and the immune microenvironment. A prognostic risk model was constructed based on 5 ICDGs and it was used to classify the patients into two risk groups; the high-risk group had poorer prognosis and an immunosuppressive microenvironment characterized by low immune score, low immune status, high abundance of immunosuppressive cells, and high expression of tumor purity. Cox regression, ROC curve analysis, and a nomogram indicated that the risk model was an independent prognostic factor. The five hub genes were verified by TCGA database, cell sublocalization immunofluorescence analysis, IHC images and qRT-PCR, which were consistent with bioinformatics analysis.
    Conclusions: The molecular subtypes and a risk model based on ICDGs proposed in our study are both promising prognostic classifications in LUAD, which may provide novel insights for developing accurate targeted cancer therapies.
    MeSH term(s) Humans ; Tumor Microenvironment/immunology ; Tumor Microenvironment/genetics ; Adenocarcinoma of Lung/genetics ; Adenocarcinoma of Lung/immunology ; Adenocarcinoma of Lung/pathology ; Adenocarcinoma of Lung/therapy ; Adenocarcinoma of Lung/mortality ; Lung Neoplasms/genetics ; Lung Neoplasms/immunology ; Lung Neoplasms/pathology ; Lung Neoplasms/therapy ; Lung Neoplasms/mortality ; Prognosis ; Immunotherapy ; Immunogenic Cell Death/genetics ; Gene Expression Regulation, Neoplastic ; Biomarkers, Tumor/genetics ; Gene Expression Profiling ; Male ; Transcriptome ; Female
    Chemical Substances Biomarkers, Tumor
    Language English
    Publishing date 2024-04-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1945-4589
    ISSN (online) 1945-4589
    DOI 10.18632/aging.205705
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: New discoveries in the field of metabolism by applying single-cell and spatial omics.

    Xie, Baocai / Gao, Dengfeng / Zhou, Biqiang / Chen, Shi / Wang, Lianrong

    Journal of pharmaceutical analysis

    2023  Volume 13, Issue 7, Page(s) 711–725

    Abstract: Single-cell multi-Omics (SCM-Omics) and spatial multi-Omics (SM-Omics) technologies provide state-of-the-art methods for exploring the composition and function of cell types in tissues/organs. Since its emergence in 2009, single-cell RNA sequencing ( ... ...

    Abstract Single-cell multi-Omics (SCM-Omics) and spatial multi-Omics (SM-Omics) technologies provide state-of-the-art methods for exploring the composition and function of cell types in tissues/organs. Since its emergence in 2009, single-cell RNA sequencing (scRNA-seq) has yielded many groundbreaking new discoveries. The combination of this method with the emergence and development of SM-Omics techniques has been a pioneering strategy in neuroscience, developmental biology, and cancer research, especially for assessing tumor heterogeneity and T-cell infiltration. In recent years, the application of these methods in the study of metabolic diseases has also increased. The emerging SCM-Omics and SM-Omics approaches allow the molecular and spatial analysis of cells to explore regulatory states and determine cell fate, and thus provide promising tools for unraveling heterogeneous metabolic processes and making them amenable to intervention. Here, we review the evolution of SCM-Omics and SM-Omics technologies, and describe the progress in the application of SCM-Omics and SM-Omics in metabolism-related diseases, including obesity, diabetes, nonalcoholic fatty liver disease (NAFLD) and cardiovascular disease (CVD). We also conclude that the application of SCM-Omics and SM-Omics approaches can help resolve the molecular mechanisms underlying the pathogenesis of metabolic diseases in the body and facilitate therapeutic measures for metabolism-related diseases. This review concludes with an overview of the current status of this emerging field and the outlook for its future.
    Language English
    Publishing date 2023-06-04
    Publishing country China
    Document type Journal Article ; Review
    ZDB-ID 2630174-X
    ISSN 2214-0883 ; 2095-1779
    ISSN (online) 2214-0883
    ISSN 2095-1779
    DOI 10.1016/j.jpha.2023.06.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The Value of SII in Predicting the Mortality of Patients with Heart Failure.

    Yuan, Miao / Ren, Fuxian / Gao, Dengfeng

    Disease markers

    2022  Volume 2022, Page(s) 3455372

    Abstract: Background: The main purpose of this study was to explore the predictive value of the systemic immune inflammation index (SII), a novel clinical marker, in heart failure (HF) patients.: Methods: Critically ill patients with HF were identified from ... ...

    Abstract Background: The main purpose of this study was to explore the predictive value of the systemic immune inflammation index (SII), a novel clinical marker, in heart failure (HF) patients.
    Methods: Critically ill patients with HF were identified from the Medical Information Mart for Intensive Care III (MIMIC III) database. Patients were divided into three groups according to tertiles of SII (group 1, group 2, group 3). We used Kaplan-Meier curves and Cox proportional hazards regression models to evaluate the association between the SII and all-cause mortality in HF. Subgroup analysis was used to verify the predictive effect of the SII on mortality.
    Results: This study included 9107 patients with a diagnosis of HF from the MIMIC III database. After 30, 60, 180, and 365 days of follow-up, 25.60%, 32.10%, 41.30%, and 47.50% of the patients in group 3 had died. Using the Kaplan-Meier curve, we observed that patients with higher SII values had a shorter survival time (log rank
    Conclusions: SII values could be used as a predictor of prognosis in critically ill patients with HF.
    MeSH term(s) Critical Illness ; Heart Failure ; Humans ; Inflammation ; Prognosis ; Proportional Hazards Models
    Language English
    Publishing date 2022-05-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604951-5
    ISSN 1875-8630 ; 0278-0240
    ISSN (online) 1875-8630
    ISSN 0278-0240
    DOI 10.1155/2022/3455372
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Role of PCSK9 in Homocysteine-Accelerated Lipid Accumulation in Macrophages and Atherosclerosis in ApoE

    Jin, Ping / Gao, Dengfeng / Cong, Guangzhi / Yan, Ru / Jia, Shaobin

    Frontiers in cardiovascular medicine

    2021  Volume 8, Page(s) 746989

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2021-10-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2781496-8
    ISSN 2297-055X
    ISSN 2297-055X
    DOI 10.3389/fcvm.2021.746989
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The Value of SII in Predicting the Mortality of Patients with Heart Failure

    Miao Yuan / Fuxian Ren / Dengfeng Gao

    Disease Markers, Vol

    2022  Volume 2022

    Abstract: Background. The main purpose of this study was to explore the predictive value of the systemic immune inflammation index (SII), a novel clinical marker, in heart failure (HF) patients. Methods. Critically ill patients with HF were identified from the ... ...

    Abstract Background. The main purpose of this study was to explore the predictive value of the systemic immune inflammation index (SII), a novel clinical marker, in heart failure (HF) patients. Methods. Critically ill patients with HF were identified from the Medical Information Mart for Intensive Care III (MIMIC III) database. Patients were divided into three groups according to tertiles of SII (group 1, group 2, group 3). We used Kaplan-Meier curves and Cox proportional hazards regression models to evaluate the association between the SII and all-cause mortality in HF. Subgroup analysis was used to verify the predictive effect of the SII on mortality. Results. This study included 9107 patients with a diagnosis of HF from the MIMIC III database. After 30, 60, 180, and 365 days of follow-up, 25.60%, 32.10%, 41.30%, and 47.50% of the patients in group 3 had died. Using the Kaplan-Meier curve, we observed that patients with higher SII values had a shorter survival time (log rank p<0.001). The Cox proportional hazards regression model adjusted for all possible confounders and indicated that the higher SII group had a higher mortality (30-day: HR=1.304, 95%CI=1.161−1.465, 60-day: HR=1.266, 95% CI=1.120−1.418, 180-day: HR=1.274, 95%CI=1.163−1.395, and 365-day: HR=1.255, 95%CI=1.155−1.364). Conclusions. SII values could be used as a predictor of prognosis in critically ill patients with HF.
    Keywords Medicine (General) ; R5-920
    Subject code 610
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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