Publications by authors named "Chunmei Bai"

Glecirasib (JAB-21822) is a new covalent oral KRAS-G12C inhibitor. This multicenter, single-arm phase 2b study assessed the efficacy and safety of glecirasib administered orally at 800 mg daily in patients with locally advanced or metastatic KRAS-mutated nonsmall-cell lung cancer. The primary endpoint was the objective response rate (ORR) assessed by an independent review committee (IRC).

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Background: Growing evidence indicates a significant correlation between polycystic ovary syndrome (PCOS) and endometrial carcinoma (EC); nevertheless, the fundamental molecular mechanisms involved continue to be unclear.

Methods: Initially, differential analysis, the least absolute shrinkage and selection operator (LASSO) regression, and support vector machine-recursive feature elimination (SVM-RFE) algorithms were employed to identify candidate genes associated with ferroptosis in PCOS. Subsequently, the TCGA-UCEC data were utilized to pinpoint the core gene.

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Background: The application of neoadjuvant immunotherapy in the treatment of esophageal cancer needs further exploration. This study aimed to investigate the safety and effectiveness of tislelizumab, an anti-PD-1 antibody, combined with chemotherapy as neoadjuvant treatment for locally advanced esophageal squamous cell carcinoma (LA-ESCC).

Methods: In this phase II study, patients with clinical stages of II-IVA (T3-T4 and/or node positive) potentially resectable LA-ESCC were enrolled.

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N-methyladenosine (mA) methylation is an essential mechanism of gene regulation known to impact several biological processes in living organisms. However, little is known about the abundance, distribution, and functional significance of mRNA mA modification during fruit ripening of tomato the main model species for fleshy fruits. Our study shows that mA modifications are prevalent in tomato mRNA and are detected in lncRNA and circRNA.

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Background: Currently, the need for new therapeutic strategies involving programmed cell death protein-1 (PD-1) monoclonal antibodies in the second-line setting of small cell lung cancer (SCLC) is urgent. This study aimed to evaluate the efficacy and safety of anlotinib plus penpulimab as a second-line treatment for patients with SCLC who progressed after first-line platinum-based chemotherapy.

Methods: This study included the patients from Cohort 4 of a single-arm, open-label, multicenter, phase II clinical trial.

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Article Synopsis
  • Metastatic colorectal cancer (mCRC) is increasingly linked to various genomic alterations beyond known factors, and this study focuses on identifying targetable changes for personalized treatment in a Chinese mCRC patient cohort.
  • A total of 500 patients underwent genomic profiling using targeted sequencing across 520 genes, revealing significant prevalence of mutations, including ones associated with potential therapy implications.
  • The findings indicated specific mutations and alterations correlated with prognosis, highlighting that some mutations lead to poorer survival rates, emphasizing the need for tailored therapies based on genomic profiling.
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Article Synopsis
  • The study examined how low temperatures (0 °C vs. 20 °C) affect the quality and flavor of ripe red tomatoes during 8 days of storage.
  • Storing tomatoes at 0 °C helped maintain their sugar content and texture by promoting the expression of certain genes, while inhibiting others related to aroma and carotenoid synthesis.
  • The cold storage also activated genes linked to antioxidants and heat shock proteins, which contributed to preserving the overall quality of the tomatoes.
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The utilization of high-density polyethylene (HDPE) pipes is prevalent in water transportation due to their exceptional durability, resistance to corrosion, and ease of installation. Traditionally, butt fusion welding has been employed to connect HDPE pipes. In this study, scanning electron microscopy (SEM) was utilized to examine the microstructure of butt fusion welded joints of HDPE pipes, while the stepped isostress method (SSM) was employed to investigate their creep behavior at 100 °C in ambient air.

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Objective: To identify the gut bacteria associated with chemotherapeutic outcomes, t characterized the gut microbiota in patients with esophageal squamous cell carcinoma (ESCC) in this prospective study.

Design: Thirty-one patients with ESCC were enrolled. Chemotherapy was performed with paclitaxel and cisplatin (TP).

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Purpose: Most clear cell renal cell carcinoma (ccRCC) overexpresses carbonic anhydrase IX (CAIX). [Ga]Ga-NY104 is a small-molecule PET agent selectively targeting CAIX. This study aims to assess the efficacy of [Ga]Ga-NY104 PET/CT to identify ccRCC.

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Quantitative analysis of vessel characteristics at the cellular scale is of great significance for understan-ding plant adaptation strategies to environment. The direct grinding combined with stereo-microscope imaging is one of the main approaches to examine the anatomical structure of xylem (conifer tracheid and hardwood vessel) wood structure, which inevitably damages xylem cells, hindering the accurate understanding of anatomical structures. In this study, we applied X-ray micro-computed tomography (μCT) and stereo-microscope technology to quantitatively measure the diameter and area of vessels of seven Canadian broadleaved tree species (, , , , , , and ).

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Purpose: F-labelled somatostatin receptor (SSTR) analogs offer several advantages over Ga in terms of yield, cost, spatial resolution and detection rate. This study presents an interim analysis of a prospective trial designed to assess the safety, biodistribution and dosimetry of [F]AlF-NOTA-LM3, and compare its diagnostic efficacy and clinical management outcomes with [Ga]Ga-DOTATATE or [Ga]Ga-NODAGA-LM3 in patients with well-differentiated NETs.

Methods: Twenty-one patients with histologically confirmed well-differentiated neuroendocrine tumors (G1 and G2) were prospectively recruited.

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Background: Malignant mesothelioma (MM) is an exceedingly rare tumor with poor prognosis due to the limited availability of effective treatment. Immunotherapy has emerged as a novel treatment approach for MM, but less than 40% of the patients benefit from it. Thus, it is necessary to identify accurate and effective biomarkers that can predict the overall survival (OS) and immunotherapy efficacy for MM.

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Although PD-1 inhibitors have revolutionized the treatment paradigm of non-small cell lung cancer (NSCLC), their efficacy in treating NSCLC has remained unsatisfactory. Targeting cancer-associated fibroblasts (CAFs) is a potential approach for improving the immunotherapy response. Multitarget antiangiogenic tyrosine kinase receptor inhibitors (TKIs) can enhance the efficacy of PD-1 inhibitors in NSCLC patients.

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In recent years, there has been an increasing number of related studies on exosomes. Most studies have focused on exosomes derived from mammals, confirming the important role that exosomes play in cell communication. Plants, as a natural ingredient, plant-derived exosomes have been confirmed to have similar structures and functions to mammalian-derived exosomes.

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Unlabelled: Bitter melon fruit is susceptible to yellowing, softening, and rotting under room-temperature storage conditions, resulting in reduced commercial value. Nitric oxide (NO) is an important signaling molecule and plays a crucial role in regulating the fruit postharvest quality. In this study, we investigated the effects of NO treatment on changes in sensory and firmness of bitter melon fruit during postharvest storage.

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Article Synopsis
  • The study examines how N-acetylcytidine (acC) modifications in mRNA affect gene expression during the ripening of wild-type and ethylene receptor-mutant (Nr) tomatoes.
  • Researchers compared gene expression and acetylation levels between mature green (MG) and breaker (Br6) stages, finding distinct differences related to key ripening genes.
  • The results suggest that acetylation modifications play a positive role in regulating the expression of these genes, influencing the differences in ethylene production, texture, and flavor of the tomatoes.
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Purpose: Somatostatin receptor antagonists have shown promising performance for imaging neuroendocrine neoplasms. However, there is a lack of studies exploring the diagnostic performance of SSTR antagonists or comparing them with agonists in a large cohort of patients with NENs. This study aimed to retrospectively review all SSTR antagonist PET/CT scans conducted at Peking Union Medical College Hospital since November 2018 in patients with confirmed or suspected NENs.

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Introduction: Apricot (Prunus armeniaca L.) fruits are highly perishable and prone to quality deterioration during storage and transportation.

Objectives: To investigate the effects of LED white light treatment on postharvest ripening of fruits using metabolomics, transcriptomics, and ATAC-Seq analysis.

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Objective: Currently, pre-treatment prediction of patients with pancreatic neuroendocrine tumors with liver metastases (PNELM) receiving surufatinib treatment was unsatisfying. Our objective was to examine the association between radiological characteristics and efficacy/prognosis.

Methods: We enrolled patients with liver metastases in the phase III, SANET-p trial (NCT02589821) and obtained contrast-enhanced computed tomography (CECT) images.

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Background: Co-occurrence of breast cancer and non-Hodgkin's lymphoma is a rare condition with diagnostic and therapeutic challenges. The coexistence of follicular lymphoma (FL) and triple-negative breast cancer (TNBC) has not been described previously.

Case Presentation: A 46-year-old woman, already suffering a history of untreated, advanced-stage, high tumor burden FL, was admitted for a rapidly progressing right breast mass.

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Formononetin as a Bax agonist exhibits anticancer effects. To identify novel Bax agonist, 18 new structurally modified formononetin derivatives were synthesised and their anticancer activities were evaluated in the A549 and Beas-2b cell lines. The results indicated that elicited the most potent inhibitory effect against the A549 cell line, with an IC value of 0.

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Background: There are no standard third-line treatment options for metastatic pancreatic ductal adenocarcinoma (mPDAC). Trametinib in combination with hydroxychloroquine (HCQ) or CDK4/6 inhibitors for pancreatic adenocarcinoma showed promising efficacy in preclinical studies. However, the regimens have not been well examined in patients with mPDAC.

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Objective: Gemcitabine plus nab-paclitaxel (GnP) is the standard first-line therapy for advanced pancreatic ductal adenocarcinoma (PDAC). S-1, an oral fluoropyrimidine derivative, as compared with gemcitabine, is non-inferior in terms of overall survival (OS) and is associated with lower hematologic toxicity. Accordingly, S-1 is a convenient oral alternative treatment for advanced PDAC.

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Background: Necroptosis is associated with oncogenesis, tumor immunity and progression. This research aims to investigate the association of necroptosis-related genes with drug sensitivity and prognosis in hepatocellular carcinoma (HCC).

Methods: Based on necroptosis-related signatures, HCC patients retrieved from the TCGA database were categorized.

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