Publications by authors named "Shan Fei"

Introduction: Multimodal therapy has become the standard treatment for curable upper gastrointestinal cancers. However, it remains unclear which 8th edition AJCC post-neoadjuvant therapy pathological classification system, esophageal (ypTNM-EC) or gastric (ypTNM-GC), can predict the overall survival (OS) of patients with Siewert II adenocarcinomas better.

Methods: Patients diagnosed with Siewert II adenocarcinomas receiving neoadjuvant therapy plus curative resection at the University Medical Center Utrecht (UMC Utrecht) and the Peking University Cancer Hospital (PUCH) between the 2001 and 2022 were included in this study.

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Solid Oxide Electrolysis Cells (SOECs) can electro-reduce carbon dioxide to carbon monoxide, which not only effectively utilizes greenhouse gases, but also converts excess electrical energy into chemical energy. Perovskite-based oxides with exsolved metal nanoparticles are promising cathode materials for direct electrocatalytic reduction of CO through SOECs, and have thus received increasing attention. In this work, we doped PrBaMnO at the B site, and after reduction treatment, metal nanoparticles exsolved and precipitated on the surface of the cathode material, thereby establishing a stable metal-oxide interface structure and significantly improving the electrocatalytic activity of the SOEC cathode materials.

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Background: This study was conducted to investigate the long-term outcomes of laparoscopic total gastrectomy (LTG) versus open total gastrectomy (OTG) in patients with advanced gastric cancer (AGC) after neoadjuvant chemotherapy (NACT).

Methods: Patients with AGC who received NACT before surgery were enrolled in either the LTG or OTG group. Propensity score matching (PSM) (1:2) was performed between the two groups based on the propensity score using a 0.

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Background: Deep learning features (DLFs) derived from radiomics features (RFs) fused with deep learning have shown potential in enhancing diagnostic capability. However, the limited repeatability and reproducibility of DLFs across multiple centers represents a challenge in the clinically validation of these features. This study thus aimed to evaluate the repeatability and reproducibility of DLFs and their potential efficiency in differentiating subtypes of lung adenocarcinoma less than 10 mm in size and manifesting as ground-glass nodules (GGNs).

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Article Synopsis
  • * A study involving 330 patients showed that proximal gastrectomy (PG) and total gastrectomy (TG) had similar short-term and long-term survival rates, with no significant differences noted in postop recovery.
  • * PG might provide better overall survival for tumors under 4 cm in diameter, while TG is preferred for larger tumors; further studies are needed to confirm these results for clinical use.
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Unlabelled: This study examined low bone mineral density (BMD) prevalence and associated factors among Chinese people living with HIV (PLWH), uncovering a persistent high BMD risk in older individuals, even after adjusting for age and body mass index (BMI). Notably, lopinavir/ritonavir (LPV/r) therapy was linked to reduced BMD, highlighting the imperative need for regular BMD monitoring and interventions in older PLWH.

Purpose: HIV infection and antiretroviral therapy (ART) have been shown to contribute to lower BMD, resulting in an increased susceptibility to osteopenia and osteoporosis.

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Purpose: To construct and validate a computed tomography (CT) radiomics model for differentiating lung neuroendocrine neoplasm (LNEN) from lung adenocarcinoma (LADC) manifesting as a peripheral solid nodule (PSN) to aid in early clinical decision-making.

Methods: A total of 445 patients with pathologically confirmed LNEN and LADC from June 2016 to July 2023 were retrospectively included from five medical centers. Those patients were split into the training set (n = 316; 158 LNEN) and external test set (n = 129; 43 LNEN), the former including the cross-validation (CV) training set and CV test set using ten-fold CV.

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Treatment with anti-programmed cell death protein 1 (PD-1) therapy and chemotherapy prolongs the survival of patients with unresectable advanced or metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma. The benefit from anti-PD-1 therapy is enriched in patients with programmed cell death 1 ligand 1 (PD-L1) combined positive score (CPS)-positive or CPS-high tumors compared with patients with PD-L1 CPS-negative or CPS-low tumors. In this phase 1b/2 study, we evaluated the efficacy and safety of cadonilimab, a bispecific antibody targeting PD-1 and cytotoxic T-lymphocyte antigen-4, plus chemotherapy as first-line treatment in patients with human epidermal growth factor receptor 2-negative unresectable advanced or metastatic gastric or GEJ adenocarcinoma.

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Background: This study aimed to compare the clinical outcomes and patient benefits of uncut Roux-en-Y (URY) anastomosis and Billroth-II with Braun (BB) anastomosis after distal gastrectomy.

Methods: We retrospectively reviewed the data of patients who underwent URY or BB anastomosis after distal gastrectomy between March 2015 and December 2017. Clinical characteristics, survival data, postoperative recovery data, and long-term outcomes were recorded and compared between the two groups.

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Article Synopsis
  • Positive peritoneal lavage cytology (CY1) in gastric cancer signifies a poor prognosis due to the high likelihood of peritoneal metastasis, but its underlying mechanisms and treatment options are still unclear.
  • A study analyzed genetic data from 17 CY1 and 31 matched CY0 gastric cancer patients to identify important driver and marker genes associated with these conditions through whole exome sequencing.
  • The results indicated no significant genetic differences between CY1 and CY0, suggesting that CY1 may be more of a progression stage of CY0 rather than a distinct subtype, which could influence future treatment strategies and clinical trials.
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Background: There is no optimal reconstruction method after proximal gastrectomy. The valvuloplastic esophagogastrostomy can reduce postoperative reflux esophagitis, but it is technically complex with a long operation time. The gastric tube anastomosis is technically simple, but the incidences of reflux esophagitis and anastomotic stricture are higher.

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Tuberculosis (TB) remains one of the major infectious diseases in the world with a high incidence rate. Drug-resistant tuberculosis (DR-TB) is a key and difficult challenge in the prevention and treatment of TB. Early, rapid, and accurate diagnosis of DR-TB is essential for selecting appropriate and personalized treatment and is an important means of reducing disease transmission and mortality.

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  • The study focuses on improving preoperative predictions of occult lymph node metastasis (OLNM) in solid-predominantly invasive lung adenocarcinoma (SPILAC) patients through a fusion model that combines radiomics and deep learning techniques.
  • The research analyzed data from 1325 SPILAC patients across six hospitals, developing three predictive models: a radiomics model, a deep learning model, and a fusion model that incorporates both methods.
  • The fusion model demonstrated the best performance, achieving an average area under the ROC curve (aAUC) of 0.754, indicating its potential to effectively predict OLNM and aid in tailoring personalized treatment strategies for patients.
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Background: The optimal reconstruction method after proximal gastrectomy remains unclear. This systematic review and meta-analysis aimed to compare the short-term outcomes and long-term quality of life of various reconstruction methods.

Methods: PubMed, Embase, Web of Science and Cochrane Library were searched to identify comparative studies concerning the reconstruction methods after proximal gastrectomy.

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Background: Only few studies have focused on the metabolite differences between asymptomatic neurocognitive impairment (ANI) and cognitively normal people living with HIV (PLWH). The current study aims to examine whether brain metabolisms in basal ganglia (BG) by magnetic resonance spectroscopy (MRS) were potential to discriminate ANI from cognitively normal PLWH.

Methods: According to neuropsychological (NP) test, 80 PLWH (37.

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Background: Accurate diagnosis of pneumonia is vital for effective disease management and mortality reduction, but it can be easily confused with other conditions on chest computed tomography (CT) due to an overlap in imaging features. We aimed to develop and validate a deep learning (DL) model based on chest CT for accurate classification of viral pneumonia (VP), bacterial pneumonia (BP), fungal pneumonia (FP), pulmonary tuberculosis (PTB), and no pneumonia (NP) conditions.

Methods: In total, 1,776 cases from five hospitals in different regions were retrospectively collected from September 2019 to June 2023.

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Background: Prognosis prediction of patients with gastric cancer after neoadjuvant chemotherapy is suboptimal. This study aims to develop and validate a dynamic radiomic model for prognosis prediction of patients with gastric cancer on the basis of baseline and posttreatment features.

Patients And Methods: This single-center cohort study included patients with gastric adenocarcinoma treated with neoadjuvant chemotherapy from June 2009 to July 2015 in the Gastrointestinal Cancer Center of Peking University Cancer Hospital.

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Article Synopsis
  • Immune checkpoint inhibitors like PD-1 and CTLA-4 have shown effectiveness in treating various cancers, prompting the study of cadonilimab, a bispecific antibody for patients with advanced solid tumors.
  • This multicenter trial in China included patients with specific eligibility criteria, assessing cadonilimab's safety and effectiveness through different dosage phases across cancers like cervical, esophageal, and liver cancer.
  • The primary focus was on determining safety during phase 1b and the objective response rate in phase 2, with results being documented and registered under ClinicalTrial.gov, indicating the study has concluded.
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The highly contagious tuberculosis is a leading infectious killer, which urgently requires effective diagnosis and treatment methods. To address these issues, three lipophilic aggregation-induced emission (AIE) photosensitizers (TTMN, TTTMN, and MeOTTMN) are selected to evaluate their labeling and antimicrobial properties in vitro and in vivo. These three lipophilic AIEgens preserve low cytotoxicity and achieve real-time and non-invasive visualization of the process of mycobacteria infection in vitro and in vivo.

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Technique: Although the double flap technique effectively reduces the incidence of postoperative reflux esophagitis and anastomotic leakage after laparoscopic gastrectomy, its clinical application is restricted because the procedure is technical complex. We devised a modified esophagogastric reconstructive method which we termed the "arch-bridge-type" reconstruction. This reconstruction method was performed for a 71-year-old man, who was admitted to our hospital with the diagnosis of cT2N0 upper gastric cancer.

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Background: Broad generalization of radiomics-assisted models may be impeded by concerns about variability. This study aimed to evaluate the merit of combatting batch effect (ComBat) harmonization in reducing the variability of voxel size-related radiomics in both phantom and clinical study in comparison with image resampling correction method.

Methods: A pulmonary phantom with 22 different types of nodules was scanned by computed tomography (CT) with different voxel sizes.

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Background: Computed tomography (CT) signs of lung nodules play an important role in indicating lung nodules' malignancy, and accurate automatic classification of these signs can help doctors improve their diagnostic efficiency. However, few relevant studies targeting multilabel classification (MLC) of nodule signs have been conducted. Moreover, difficulty in obtaining labeled data also restricts this avenue of research to a large extent.

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Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), remains a significant public health threat with high rates of infection and mortality. Rapid and reliable theranostics of TB are essential to control transmission and shorten treatment duration. In this study, we report two cationic aggregation-inducing emission luminogens (AIEgens) named TTVP and TTPy, which have different functional charged moieties, to investigate their potential for simultaneous tracing and photodynamic therapy in TB infection.

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Background: Lung cancer is a global disease with high lethality, with early screening being considerably helpful for improving the 5-year survival rate. Multimodality features in early screening imaging are an important part of the prediction for lung adenocarcinoma, and establishing a model for adenocarcinoma diagnosis based on multimodal features is an obvious clinical need. Through our practice and investigation, we found that graph neural networks (GNNs) are excellent platforms for multimodal feature fusion, and the data can be completed using the edge-generation network.

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Myocardial ischemia/reperfusion (MI/R) injury induces myocardial damage and dysfunction. Increasing evidence has confirmed that circular RNAs (circRNAs) play crucial roles in regulating MI/R. Mmu-circ-0001380 has identified to be highly expressed in myocardium of MI/R mouse model.

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