Publications by authors named "Yingbo Chen"

Background: This study has employed network analysis while investigating the interrelationships among stress and stigma symptoms and their associations with quality of life among Chinese female infertility patients.

Methods: In this cross-sectional study, 428 female patients who visited the Department of Reproductive Center of Dalian Women and Children's Medical Group with chief complaints of infertility symptoms were recruited using convenience sampling from November 2022 to December 2023. Fertility-related stress and stigma status were examined by the Fertility Problem Inventory (FPI) and Infertility Stigma Scale (ISS), respectively.

View Article and Find Full Text PDF
Article Synopsis
  • - The study focuses on melanoma treatment challenges, highlighting the need for a model that can predict prognosis and assess drug sensitivity using programmed cell death (PCD) modes.
  • - Researchers analyzed 13 PCD modes to create a Cell Death Index (CDI) based on gene signatures, which was validated with various data sources and showed distinct differences in patient outcomes.
  • - The CDI model effectively predicts melanoma prognosis and drug resistance, indicating that patients with higher CDI values have poorer postoperative outcomes.
View Article and Find Full Text PDF

Diarrhoeal disease caused by Cryptosporidium is a major cause of morbidity and mortality in young and malnourished children from low- and middle-income countries, with no vaccine or effective treatment. Here we describe the discovery of EDI048, a Cryptosporidium PI(4)K inhibitor, designed to be active at the infection site in the gastrointestinal tract and undergo rapid metabolism in the liver. By using mutational analysis and crystal structure, we show that EDI048 binds to highly conserved amino acid residues in the ATP-binding site.

View Article and Find Full Text PDF
Article Synopsis
  • * A study analyzed data from 34 trials to compare the effectiveness of PD1/PD-L1 inhibitors versus standard treatments for patients with low PD-L1 expression (< 1%), revealing that combination therapies provided significant survival benefits over standard care, especially in non-small cell lung cancer and other specific cancers.
  • * Overall, anti-PD-1/PD-L1 combination therapy improved overall survival (OS) and progression-free survival (PFS) compared to standard treatment, while monotherapy results were
View Article and Find Full Text PDF

The hydrochemical characteristics of groundwater are of great significance for studying the source, development, and utilization of groundwater. This study investigated the characteristics of anions and cations, total dissolved solids (TDS), hydrochemical types, and hydrogen and oxygen isotopes of surface water and groundwater in the Balasu coalfield. By conducting experiments using inductively coupled plasma emission electron spectrometry, ion chromatography, acid-base titration, and gravimetric analysis, the characteristics of ion concentration and TDS in different aquifers were analyzed to determine the possible source of groundwater in C2 (number 2 coal seam in Yan'an Formation).

View Article and Find Full Text PDF

Importance: Whether anti-Helicobacter pylori treatment can provide survival benefits for patients with gastric cancer who are diagnosed with H pylori infection is an area with limited research.

Objective: To explore the potential survival benefits of anti-H pylori treatment after radical gastrectomy in patients with gastric cancer and presurgical confirmation of H pylori infection.

Design, Setting, And Participants: This retrospective cohort study was conducted using data from patients with gastric cancer treated between January 1, 2010, and December 31, 2018, and followed up for outcome ascertainment until May 19, 2021.

View Article and Find Full Text PDF

This paper proposes an adaptive river discharge measurement method based on spatiotemporal image velocimetry (STIV) and optical flow to solve the problem of blurred texture features and limited measurement accuracy under complex natural environmental conditions. Optical flow tracking generates spatiotemporal images by following the flow mainstream direction of rivers with both regular and irregular natural banks. A texture similarity function filtering method effectively enhances spatiotemporal texture features.

View Article and Find Full Text PDF
Article Synopsis
  • Perioperative chemotherapy remains the standard treatment for locally advanced gastric cancer, and a study (NEOSUMMIT-01) is exploring the effectiveness of adding a PD-1 inhibitor called toripalimab to this regimen.
  • In the study, patients were randomly assigned to receive either standard chemotherapy or a combination of toripalimab and chemotherapy, with results showing that the latter group had a significantly higher rate of tumor regression (44.4% vs. 20.4%).
  • Additionally, the combination treatment led to a greater rate of complete pathological response and had similar rates of surgical complications and treatment-related side effects compared to chemotherapy alone.
View Article and Find Full Text PDF

Background: Excessive pesticide residues will seriously endanger human health. The complexity and lag of the current popular analytical methods hinder the timeliness of food safety analysis. Surface-enhanced Raman scattering (SERS) was an ultra-sensitive vibration spectroscopy technology with the advantages of less time cost, non-destructive and semi-quantitative detection, which has attracted much attention in the rapid field detection of pesticide residue.

View Article and Find Full Text PDF

The adhesion between metal plasma and substrate was the key of surface-enhanced Raman scattering (SERS) technology. The preparation of ideal SERS substrate with multiple advantages such as high sensitivity and good signal reproducibility was still the focus of research. A flexible foldable and transparent fluorinated polyimide/silver NPs (FPI@Ag) SERS film was fabricated by the ion exchange and in-situ reduction method in this work.

View Article and Find Full Text PDF
Article Synopsis
  • Circulating tumor DNA (ctDNA) can help doctors understand if stomach cancer might come back after treatment, especially in patients with stage II/III gastric cancer.
  • In a study with 100 patients, those who had ctDNA after surgery or chemotherapy had a much higher chance of their cancer returning.
  • Using ctDNA measurements along with other tests showed better predictions for cancer recurrence than using just tissue samples alone.
View Article and Find Full Text PDF

Background: The effect of a single tumor marker on the prognosis of gastric cancer patients is not ideal. This study explored a novel prognostic assessment method for gastric cancer (GC) patients using a combination of three important tumor markers (CEA, CA72-4, and CA19-9).

Method: Data from 1966 GC patients who underwent curative gastrectomy at Sun Yat-Sen University Cancer Center (Guangzhou, China) were included.

View Article and Find Full Text PDF

In this study, a new composite adsorbent for Cr(VI) removal was developed by immobilizing polyethyleneimine (PEI) on the surface of zero-valent iron (ZVI) particles with tannic acid (TA) as a stabilizer. The adsorbent (denoted as Fe-TA-PEI-10) was easy to prepare and regenerate, requiring no conditions for storage. It was found to be particularly effective for Cr(VI) removal from wastewater via reduction and adsorption.

View Article and Find Full Text PDF

Background: Relapse-free survival (RFS) has been considered a primary endpoint to assess the effects of immunotherapy in the adjuvant setting among patients with early-stage disease. However, it is not clear whether RFS is a valid surrogate endpoint for overall survival (OS) in this clinical context.

Methods: Phase II or III clinical trials of adjuvant immunotherapy that reported hazard ratios on OS and RFS were identified.

View Article and Find Full Text PDF

Background: This study aimed to construct a prognostic model for prognosis prediction and assess the response to adjuvant chemotherapy (ACT) of stage II gastric cancer (GC) patients on high and low survival risk stratifications.

Methods: We retrospectively reviewed 547 stage II gastric cancer patients who underwent D2 radical gastrectomy from January 2009 to May 2017 in Sixth Affiliated Hospital of Sun Yat-Sen University (SAH-SYSU), the Fujian Medical University Union Hospital (FJUUH), and the Sun Yat-Sen University Cancer Center (SYSUCC).The propensity score matching (PSM) of all variables was performed to balance selective bias between ACT and surgery alone (SA) groups.

View Article and Find Full Text PDF

Background: Although the incidence of adenocarcinoma of the esophagogastric junction (AEG) has been increasing since the past decade, the proportion of AEG cases in two previous clinical trials (ACTS-GC and CLASSIC) that investigated the efficacy of adjuvant chemotherapy was relatively small. Therefore, whether AEG patients can benefit from adjuvant chemotherapy remains unclear.

Methods: Patients who were diagnosed with pathological stage II/III, Siewert II/III AEG, and underwent curative surgery at three high-volume institutions were assessed.

View Article and Find Full Text PDF

To compare the inhibition of LAG3-PD1 versus the inhibition of CTLA-4-PD1 in patients with previously untreated advanced melanoma. The individual participant data (IPD) were extracted from the KM plots using a graphical reconstructive algorithm. Log-rank, Cox proportional hazard model, Bayesian hierarchical model with time-varying hazard ratio (HR) effect, and restricted mean survival time (RMST) were performed to estimate survival benefits.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the relationship between pyroptosis (a type of cell death) and the tumor immune microenvironment (TIME) in gastric cancer to better understand their interactions.
  • Researchers identified distinct groups based on pyroptosis-related characteristics and created a pyroptosis risk score to predict immunotherapy responses and identify potential cancer treatments.
  • Findings show that a low pyroptosis risk score correlates with favorable immune cell profiles and better patient outcomes, validating its effectiveness as a prognostic tool for survival and immunotherapy response in gastric cancer.
View Article and Find Full Text PDF

Background: The benefit of adjuvant chemotherapy (AC) for patients with stage II gastric cancer remains controversial. This study aimed to explore the indications for adjuvant chemotherapy in patients with stage II gastric cancer by constructing an individual prediction model.

Patients And Methods: In this Chinese multicenter study, a total of 1012 patients with stage II gastric cancer after D2 radical gastrectomy were retrospectively analyzed.

View Article and Find Full Text PDF

A new type of composite membrane was prepared through the vacuum filtration self-assembly, in which, graphene oxide (GO) was the basic material, and the horizontal insertion material is product of perylene-3, 4, 9, 10-tetracarboxylic dianhydride (PTCDA) and UiO-66-NH (PTCDA-UiO-66-NH). The leading role of Π-Π conjugate, auxiliary effect of hydrogen bonding during membrane preparation have been confirmed through Fourier transform infrared spectroscopy (FTIR), UV-visible spectrophotometer, Raman spectroscopy, and X-ray diffraction (XRD). The prepared GO@PTCDA-UiO-66-NH membrane had new nodular structure compared to GO membrane by scanning electron microscopy (SEM) and atomic force microscopy (AFM), which promoted the water transport.

View Article and Find Full Text PDF

Lymph node (LN) metastasis is known as one of the most important prognostic factors for early gastric cancer (EGC) patients. Patients without LNM normally have better prognosis. However, there is no evaluation criteria to accurately assess the possibility of LN metastasis.

View Article and Find Full Text PDF

The soaring global prevalence of diabetes makes it urgent to explore new drugs with high efficacy and safety. Nanomaterial-derived bioactive agents are emerging as one of the most promising candidates for biomedical application. In the present study, we investigated the anti-diabetic effects of a functionalized gadofullerene (GF) using obese db/db and non-obese mouse model of type 2 diabete mellitus (MKR) mouse type 2 diabetes mellitus (T2DM) models.

View Article and Find Full Text PDF

Objective: The benefit of adjuvant chemotherapy is still controversial for stage II gastric cancer patients. This study aims to identify prognostic factors to guide individualized treatment for stage II gastric cancer patients.

Methods: We retrospectively reviewed 1121 stage II gastric cancer patients who underwent D2 radical gastrectomy from 2007 to 2017 in the Sixth Affiliated Hospital of Sun Yat-sen University, FuJian Medical School Affiliated Union Hospital and Sun Yat-sen University Cancer Center.

View Article and Find Full Text PDF