Publications by authors named "Weipeng Zhao"

Background: To investigate the clinical characteristics of liver metastasis from metastatic breast cancer and construct a competing risk nomogram for predicting the probability of liver metastasis.

Methods: Clinical data of patients with metastatic breast cancer from Tianjin Medical University Cancer Institute during 2008-2018 were retrospectively collected. Independent prognostic factors were assessed by the Fine-Gray competing risk model.

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Nickel-catalyzed arylation of carboxylic acids provides a ligand-controlled chemoselectivity-switchable method for the construction of C(sp)-C(sp) bonds. Here, we employed density functional theory to provide a detailed understanding of the mechanism and origin of nickel-catalyzed ligand-controlled carbonyl transformation. This reaction generates decarbonylation products through oxidative addition, activation of C-C bonds, decarbonylation, binding of alkyl radicals with Ni(III) complexes, and final reduction elimination step.

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Aims: Accurate heart function estimation is vital for detecting and monitoring cardiovascular diseases. While two-dimensional echocardiography (2DE) is widely accessible and used, it requires specialized training, is prone to inter-observer variability, and lacks comprehensive three-dimensional (3D) information. We introduce CardiacField, a computational echocardiography system using a 2DE probe for precise, automated left ventricular (LV) and right ventricular (RV) ejection fraction (EF) estimations, which is especially easy to use for non-cardiovascular healthcare practitioners.

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  • A clinical trial compared the effectiveness and safety of gemcitabine plus capecitabine (GX) versus gemcitabine plus carboplatin (GC) in treating advanced triple-negative breast cancer (TNBC) patients.
  • The results showed that while median progression-free survival (PFS) was similar, the GC regimen was more effective, particularly in patients with high tumor-infiltrating lymphocytes (TILs).
  • The GX regimen is still considered for patients who might struggle with the side effects associated with the GC treatment, particularly hematological toxicity.
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  • After 16 days without improvement, the patient refused surgery and chose to pursue traditional Chinese medicine (TCM) treatments instead.
  • Using a combination of TCM techniques like acupuncture, herbal remedies, and modern medical care, the patient’s obstruction resolved successfully, allowing for discharge without surgery and no recurrence noted during follow-up.
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  • The study aims to enhance the diagnosis of mitral valve prolapse (MVP) by using an automated approach that combines multi-view echocardiography and deep learning, addressing limitations of traditional methods.
  • Researchers trained two types of deep learning models (view-specific and view-agnostic) on echocardiographic data, achieving high diagnostic accuracy for both fibroelastic deficiency (FED) and Barlow's disease (BD).
  • The results suggest that this AI-driven diagnostic method significantly improves efficiency and accuracy, indicating its potential for future clinical applications in diagnosing heart valve diseases.
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  • The study aimed to create a reliable gastric cancer (GC) screening score system for urban residents and assess its effectiveness using data from two groups: a derivation cohort of 3,406 individuals and a validation cohort of 868.
  • Three distinct GC-risk scoring systems were developed, incorporating various risk factors like age, plateletocrit, and carcinoembryonic antigen, with different scoring ranges and optimal cut-off points for each system, demonstrating strong discrimination capabilities.
  • The results confirmed that the scoring systems significantly aid in identifying individuals at higher risk for GC, with the third scoring system showing the highest screening efficiency among urban residents.
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  • The study aimed to evaluate a new intracardiac echocardiography (ICE) catheter’s effectiveness, image clarity, and practicality during heart procedures on human subjects.
  • Two patients were tested with the catheter, and post-procedure evaluations showed it performed comparably to existing catheters, providing detailed imaging without complications.
  • Preliminary results indicate the new catheter is safe and effective for complex heart interventions, emphasizing the need for specialized sheaths to reduce complications.
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Introduction: Breast cancer is a heterogeneous disease comprising various molecular subtypes, including Luminal A, Luminal B, human epidermal growth factor receptor-2 (HER2) positive, and triple negative types, each with distinct biological characteristics and behaviors. Triple negative breast cancer (TNBC) remains a particularly challenging subtype worldwide. Our study aims to evaluate whether Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography (F-FDG PET/CT) parameters, clinical pathological features, and biochemical indicators serve as prognostic risk factors for TNBC.

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  • Circular RNAs (circRNAs) like circ_0084653, which arises from the COPS5 gene, are increasingly recognized for their role in triple-negative breast cancer (TNBC) and are shown to be upregulated in TNBC cells.* -
  • Knockdown of COPS5 resulted in decreased cell proliferation, invasion, and other cancer traits, while circ_0084653 silence also inhibited TNBC progression, indicating a regulatory relationship between these molecules and cancer development.* -
  • circ_0084653 enhances TNBC by deubiquitinating the MYC protein through USP36 recruitment and acting as a sponge for miR-1323, subsequently increasing the expression of the SOX5 gene, which
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Background: There is limited data on the 2-year outcomes of transapical transcatheter edge-to-edge repair (TA-TEER) using the ValveClamp in patients with severe primary mitral regurgitation (MR) and its impact on myocardial deformation.

Methods: From July 2018 to March 2021, 53 patients with symptomatic severe primary MR underwent TA-TEER were enrolled. The endpoint was the composite of all-cause mortality, recurrent 3 + or 4 + MR, or need for mitral surgery.

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Myocardial motion tracking stands as an essential clinical tool in the prevention and detection of cardiovascular diseases (CVDs), the foremost cause of death globally. However, current techniques suffer from incomplete and inaccurate motion estimation of the myocardium in both spatial and temporal dimensions, hindering the early identification of myocardial dysfunction. To address these challenges, this paper introduces the Neural Cardiac Motion Field (NeuralCMF).

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  • This study aimed to evaluate the effectiveness and prognosis of serum HER2 (sHER2) in patients with advanced breast cancer, analyzing data from 200 patients undergoing treatment.
  • Results revealed that high baseline sHER2 levels were linked to worse prognosis factors like visceral metastasis and shorter time to progression (TTP), but also indicated higher objective response rates (ORR) in treatment.
  • The dynamic monitoring of sHER2 levels during treatment is crucial, as significant decreases were associated with better treatment outcomes, although overall survival did not correlate with sHER2 levels.
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  • Triple-negative breast cancer (TNBC) is highly aggressive, and while androgen receptor (AR) shows potential as a treatment target, effective therapies remain untested in clinical settings.
  • A study investigated a new treatment regimen combining an AR inhibitor (enzalutamide, Enz) and a histone deacetylase inhibitor (chidamide, Chid), resulting in reduced cell growth and movement by disrupting the cell cycle and targeting the PI3K/Akt signaling pathway.
  • The combination therapy upregulated insulin receptor substrate 4 (IRS4), which appears pivotal in inhibiting KRAS signaling and tumor growth, suggesting IRS4 might serve as a biomarker for patient screening in AR-positive TNBC treatment with Enz and Chid.
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Background: The mitral valve undergoes structural modifications in response to cardiac functional changes, often predating cardiac decompensation and overt clinical signs. Our study assessed the potential of mitral valve morphological changes as early indicators for detecting carriers of hypertrophic cardiomyopathy (HCM)-associated gene mutations.

Methods: We studied 505 participants: 189 without the pathogenic gene mutations and left ventricular hypertrophy (G-/LVH-), 149 carriers without LV hypertrophy (G+/LVH-), and 167 manifest HCM patients (G+/LVH+).

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Aims: This study aims to clarify the association between hypertrophic patterns and genetic variants in hypertrophic cardiomyopathy (HCM) patients, contributing to the advancement of personalized management strategies for HCM.

Methods And Results: A comprehensive evaluation of genetic mutations was conducted in 392 HCM-affected families using Whole Exome Sequencing. Concurrently, relevant echocardiographic data from these individuals were collected.

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  • Metaplastic breast cancer (MpBC) is a highly aggressive form of breast cancer characterized by various subtypes, with a significant portion being mixed (45.1%), and a majority being triple-negative (69.6%).
  • The study analyzed data from 217 MpBC patients and found that their survival rates are worse compared to those with invasive ductal carcinoma of no special type (IDC-NST), with important prognostic factors including tumor subtype and chemotherapy treatment.
  • Overall, MpBC patients have poorer prognoses than IDC-NST patients; mixed MpBC exhibits the most aggressive characteristics, while pure and heterologous mesenchymal differentiation subtypes tend to have better survival outcomes.
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Background: Cytokines are involved in many inflammatory diseases and thus play an important role in tumor immune regulation. In recent years, researchers have found that breast cancer is not only related to genetic and environmental factors, but also to the chronic inflammation and immunity. However, the correlation between serum cytokines and blood tests indicators remain unclear.

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  • Breast carcinoma is the most prevalent cancer among women, but metastasis to the gastrointestinal tract is uncommon, with a study focusing on 22 Chinese women revealing various clinicopathological features and treatment outcomes.
  • Common symptoms included anorexia, epigastric pain, and vomiting; metastasis sites were primarily the skeleton, stomach, and colorectal regions, with specific diagnostic markers aiding in identifying metastases.
  • The study indicated that systemic therapy led to an 81% disease control rate, but only a 10% objective response rate, highlighting the importance of endoscopic biopsies for accurate diagnosis and treatment planning to differentiate between primary and metastatic cancers.
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The hormone receptor (HR) status and human epidermal growth hormone receptor 2 (HER2) status of patients with breast cancer may change following neoadjuvant chemotherapy (NAC). We retrospectively analyzed the clinical data of 294 patients with stage II/III breast cancer to evaluate the clinical significance and prognostic value of receptor transformation after NAC in breast cancer patients. Pathological complete response after NAC was achieved in 10.

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Catalytic hydrogenation plays an important role in the industrial production of fine chemicals. Herein, we report a Co-doped MoS and CoS composite with a coupling interface and successfully apply it for the chemoselective hydrogenation of -chloronitrobenzene to -chloroaniline. The target catalyst 0.

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The COVID-19 outbreak triggered a serious and potentially lethal pandemic, resulting in massive health and economic losses worldwide. The most common clinical manifestations of COVID-19 patients are pneumonia and acute respiratory distress syndrome, with a variety of complications. Multiple organ failure and damage, ultimately leading to patient death, are possible as a result of medication combinations, and this is exemplified by DILI.

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Immunotherapy has revolutionized cancer treatment and become one of the five pillars of cancer therapy. The clinical applications of immunotherapy have been adapted to range from the management of melanoma to most tumor types. As the clinical applications of cancer immunotherapies expand, understanding the treatment-related adverse events of these drugs becomes critical in clinical practice.

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  • The study focuses on using circulating tumor DNA (ctDNA) methylation as a non-invasive biomarker for early cancer detection, specifically in breast cancer patients, tackling challenges like low ctDNA availability and complex DNA variations.
  • Researchers analyzed three cohorts from hospitals in China, developing a specialized ctDNA sequencing technology that requires minimal plasma input and offers comprehensive genome-wide coverage.
  • Results showed that a diagnostic signature of 15 ctDNA methylation markers can accurately identify both early and advanced breast cancer stages, as well as discern estrogen receptor status and differentiate between various cancer types.
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To evaluate the cardiac safety of anti-HER2-targeted therapy for early breast cancer; to investigate whether trastuzumab combined with pertuzumab increases cardiac toxicity compared with trastuzumab; to evaluate the predictive value of high-sensitivity Troponin (hs-TnI) and QTc for the cardiotoxicity associated with anti-HER2 targeted therapy in early breast cancer. A total of 420 patients with early-stage HER2-positive breast cancer who received trastuzumab or trastuzumab combined with pertuzumab for more than half a year in Tianjin Medical University Cancer Hospital from January 2018 to February 2021 were included. Left ventricle ejection fraction (LVEF), hs-TnI values, and QTc were measured at baseline and 3, 6, 9, 12 months.

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