Publications by authors named "Zengqing Guo"

Background: Cachexia is associated with multiple adverse outcomes in cancer. However, clinical decision-making for oncology patients at the cachexia stage presents significant challenges.

Objective: This study aims to develop a machine learning (ML) model to identify potentially reversible cancer cachexia (PRCC).

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Background: Gallbladder and biliary tract cancer (GBTC) is a significant health burden in China, exacerbated by the rising prevalence of high body mass index (BMI). Understanding the trends and factors contributing to mortality and disability associated with GBTC is crucial for targeted public health interventions.

Methods: We utilized data from the Global Burden of Disease (GBD) Study to assess the burden of GBTC attributable to high BMI in China from 1990 to 2021.

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Malnutrition is a prevalent condition among patients with gastric cancer and is associated with poor survival outcomes. This study aimed to evaluate the clinical utility of the Global Leadership Initiative on Malnutrition (GLIM) criteria in predicting survival among patients with gastric cancer. The multicenter retrospective cohort study (INSCOC study) included 1406 patients enrolled between December 2012 and April 2020, with follow-up data collected until June 2023.

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Background: Inflammatory factors have increasingly become a more cost-effective prognostic indicator for gastric cancer (GC). The goal of this study was to develop a prognostic score system for gastric cancer patients based on inflammatory indicators.

Methods: Patients' baseline characteristics and anthropometric measures were used as predictors, and independently screened by multiple machine learning(ML) algorithms.

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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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Objective: The purpose of this study was to develop an individual survival prediction model based on multiple machine learning (ML) algorithms to predict survival probability for remnant gastric cancer (RGC).

Methods: Clinicopathologic data of 286 patients with RGC undergoing operation (radical resection and palliative resection) from a multi-institution database were enrolled and analyzed retrospectively. These individuals were split into training (80%) and test cohort (20%) by using random allocation.

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Background: Body weight and its changes have been associated with cancer outcomes. However, the associations of short-term peridiagnosis weight dynamics in standardized, clinically operational time frames with cancer survival remain largely unknown. This study aimed to screen for and evaluate the optimal indicator of short-term peridiagnosis weight dynamics to predict overall survival (OS) in patients with cancer.

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Background & Aims: The key step of the Global Leadership Initiative on Malnutrition (GLIM) is nutritional risk screening, while the most appropriate screening tool for colorectal cancer (CRC) patients is yet unknown. The GLIM diagnosis relies on weight loss information, and bias or even failure to recall patients' historical weight can cause misestimates of malnutrition. We aimed to compare the suitability of several screening tools in GLIM diagnosis, and establish machine learning (ML) models to predict malnutrition in CRC patients without weight loss information.

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Objectives: Systemic inflammation and skeletal muscle strength play crucial roles in the development and progression of cancer cachexia. In this study we aimed to evaluate the combined prognostic value of neutrophil-to-lymphocyte ratio (NLR) and handgrip strength (HGS) for survival in patients with cancer cachexia.

Methods: This multicenter cohort study involved 1826 patients with cancer cachexia.

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Background: Although the Patient-Generated Subjective Global Assessment (PG-SGA) is a reference standard used to assess a patient's nutrition status, it is cumbersome to administer. The aim of the present study was to estimate the value of a simpler and easier-to-use modified PG-SGA (mPG-SGA) to evaluate the nutrition status and need for intervention in patients with malignant tumors present in at least two organs.

Methods: A total of 591 patients (343 male and 248 female) were included from the INSCOC study.

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Importance: The bioequivalence of denosumab biosimilar has yet to be studied in a 53-week, multicenter, large-scale, and head-to-head trial. A clinically effective biosimilar may help increase access to denosumab in patients with solid tumor-related bone metastases.

Objectives: To establish the biosimilarity of MW032 to denosumab in patients with solid tumor-related bone metastases based on a large-scale head-to-head study.

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Objectives: The concept of possible sarcopenia (PS) was recently introduced to enable timely intervention in settings without the technologies required to make a full diagnosis of sarcopenia. This study aimed to investigate the association between PS and all-cause mortality in patients with solid cancer.

Design: Retrospective observational study.

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Article Synopsis
  • Cancer cachexia is a serious condition affecting cancer patients with diverse clinical features, and identifying these phenotypes can lead to tailored treatments and improved patient outcomes.
  • In a nationwide study conducted in China on 4,329 patients, researchers used machine learning to classify patients into four distinct clusters based on their clinical characteristics, which varied from mildly to severely impaired health.
  • The study found that as the impairment severity increased, so did mortality rates, with the machine learning model performing better at predicting outcomes compared to traditional methods, confirming its effectiveness in classifying cancer cachexia phenotypes.
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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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Background: SETD2 protects against genomic instability via maintenance of homologous recombination repair (HRR) and mismatch repair (MMR) in neoplastic cells. However, it remains unclear whether SETD2 dysfunction is a complementary or independent factor to microsatellite instability-high (MSI-H) and tumor mutational burden-high (TMB-H) for immunocheckpoint inhibitor (ICI) treatment, and little is known regarding whether this type of dysfunction acts differently in various types of cancer.

Methods: This cohort study used multidimensional genomic data of 6726 sequencing samples from our cooperative and non-public GenePlus institute from April 1 through April 10, 2020.

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Article Synopsis
  • The study assessed sarcopenia (muscle loss) in a large group of cancer patients and its impact on prognosis, finding that 33% of 13,761 patients had sarcopenia.
  • Age was identified as the most significant risk factor for sarcopenia, with those affected experiencing worse nutritional status and quality of life.
  • Sarcopenia was linked to higher mortality rates in cancer patients, suggesting it is a critical consideration in managing cancer care.
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Background & Aims: The present study aimed to compare the ability of the GLIM criteria, PG-SGA and mPG-SGA to diagnose malnutrition and predict survival among Chinese lung cancer (LC) patients.

Methods: This was a secondary analysis of a multicenter, prospective, nationwide cohort study, 6697 LC inpatients were enrolled between July 2013 and June 2020. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), area under the curve (AUC), and quadratic weighted Kappa coefficients were calculated to compare the ability to diagnose malnutrition.

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Background: The fat mass and nutritional status play important roles in the onset and progression of cancer cachexia. The present study evaluated the joint prognostic value of the fat mass, as indicated by the triceps skinfold thickness (TSF), and the serum albumin level, for mortality in patients with cancer cachexia.

Methods: We performed a multicentre cohort study including 5134 patients with cancer cachexia from January 2013 to April 2019.

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The aim of this study was to investigate the upper gastrointestinal cancer incidence trend in China from 1990 to 2019 with Joinpoint software and to evaluate the age effect, cohort effect, and period effect using the age-period-cohort model, with the data obtained from the Global Burden of Disease, Injuries, and Risk Factors Study. The crude incidence rate (CR) of upper gastrointestinal cancer in China increased from 41.48/100,000 in 1990 to 62.

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We aimed to analyze the levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and interleukin-12 (IL-12p70) in colorectal cancer and evaluate the predictive significance of clinical efficacy of patients with colorectal cancer treated with anti-vascular therapy combined with chemotherapy. A retrospective study of 162 patients with colorectal cancer in Fujian Medical University Hospital was conducted from January 2019 to December 2020. A comparative analysis of the levels of IL-6, TNF-α and IL-12p70 between the two groups were studied.

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Background: Diagnosing cancer cachexia relies extensively on patient-reported historic weight, and failure to accurately recall this information can lead to severe underestimation of cancer cachexia.

Objectives: The present study aimed to develop inexpensive tools to facilitate the identification of cancer cachexia in patients without weight loss information.

Methods: This multicenter cohort study included 12,774 patients with cancer.

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Objective: Neoantigens arising from gene mutations in tumors can induce specific immune responses, and neoantigen-based immunotherapies have been tested in clinical trials. Here, we characterized the efficacy of altered neoepitopes in improving immunogenicity against gastric cancer.

Methods: Raw data of whole-exome sequencing derived from a patient with gastric cancer were analyzed using bioinformatics methods to identify neoepitopes.

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Article Synopsis
  • - The study aimed to assess whether adding high-dose vitamin C to the standard chemotherapy (FOLFOX ± bevacizumab) would improve outcomes for patients with metastatic colorectal cancer (mCRC).
  • - Results showed that there was no significant difference in progression-free survival (PFS), overall survival (OS), or response rates between the vitamin C group and the control group, although patients with RAS mutations did experience longer PFS with vitamin C.
  • - Overall, high-dose vitamin C did not provide a clear benefit over standard chemotherapy for mCRC, except potentially for patients with specific genetic mutations (RAS mutation).
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