122 results match your criteria: "the First Affiliated Hospital of Zhengzhou University Zhengzhou 450052[Affiliation]"

Ga-labeled TMTP1 radiotracer for PET imaging of cervical cancer.

Am J Nucl Med Mol Imaging

April 2024

Department of Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030, Hubei, China.

Molecular imaging enables visualization and characterization of biological processes that influence tumor behavior and response to therapy. The TMTP1 (NVVRQ) peptide has shown remarkable affinity to highly metastatic tumors and and its potential receptor is aminopeptidase P2. In this study, we have designed and synthesized a Ga-labeled cyclic TMTP1 radiotracer (Ga-DOTA-TMTP1), for PET imaging of cervical cancer.

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Background: Marburg virus (MARV), a close relative of Ebola virus, could induce hemorrhagic fevers in humans with high mortality rate. In recent years, increasing attention has been paid to this highly lethal virus due to sporadic outbreaks observed in various African nations. This bibliometric analysis endeavors to elucidate the trends, dynamics, and focal points of knowledge that have delineated the landscape of research concerning MARV.

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This study aims to investigate the effect and mechanism of Maxingshigan Decoction on inflammation in the rat model of cough variant asthma(CVA). The SPF-grade SD rats of 6-8 weeks were randomized into normal, model, Montelukast sodium, and low-, medium-, and high-dose Maxing Shigan Decoction groups, with 8 rats in each group. The CVA rat model was induced by ovalbumin(OVA) and aluminum hydroxide sensitization and ovalbumin stimulation.

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Primary malignant melanoma most frequently occurs in the skin. Melanoma affecting the gastrointestinal (GI) tract has been substantiated for lesions occurring in the esophagus, stomach, small bowel, and anorectum through multiple published reports, given the presence of melanocytes in these areas. Nevertheless, owing to the exceedingly low incidence of this disease, reports on its clinical features are few, and treatment approaches lack standardization.

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Giant cell tumor (GCT) is a benign yet locally aggressive bone neoplasm typically situated in the juxta-articular metaphysis of long bones. Although spinal involvement is rare, it is predominantly reported in the axial skeleton, with the sacrum being the primary location. Conversely, GCTs are notably uncommon in the thoracic spine.

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Small non-coding RNAs (microRNA, miR), powerful epigenetic regulators, were found involved in the regulation of most biological functions via post-translational inhibition of protein expression. Increased expression of pro-oncogenic miRs (known as miR cancer biomarkers) and inhibition of pro-apoptotic miR expression have been demonstrated in different tumors. The recently identified miR-183 was found implicated in gastrointestinal tumor metabolism regulation.

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There is no strong evidence indicating the optimal treatment for breast cancer (BC) and no specific prognostic model. The aim of this study was to establish nomograms to predict the overall survival (OS) of BC patients receiving chemoradiotherapy and surgery, thereby quantifying survival benefits and improving patient management. A total of 1877 patients with primary nonmetastatic BC who received chemoradiotherapy and surgery from 2010 to 2019 were identified from the Surveillance, Epidemiology and End Results (SEER) database as the training cohort, 804 as the internal validation cohort, and 796 patients from the First Affiliated Hospital of Zhengzhou University (n=324) and Jiaxing Maternal and Child Health Hospital (n=472) as the external validation cohort.

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Colorectal cancer (CRC) is one of the most common malignant cancers. The tumor microenvironment (TME) plays an important role in tumor progression and affects the prognosis of CRC patients. However, the TME has been poorly characterized and studies aiming to identify the biomarkers or combined risk scores of CRC patients are limited.

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Follicular lymphoma (FL) is a subtype of non-Hodgkin lymphoma (NHL) that is typically characterized by a slow-growing course. Duodenal-type follicular lymphoma (D-FL) was recently reclassified as a distinct variant. This subtype exhibits unique clinical and biological characteristics, which set it apart from other forms of FL.

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To investigate the effect of Huazhi Rougan Granules(HZRG) on autophagy in a steatotic hepatocyte model of free fatty acid(FFA)-induced nonalcoholic fatty liver disease(NAFLD) and explore the possible mechanism. FFA solution prepared by mixing palmitic acid(PA) and oleic acid(OA) at the ratio of 1∶2 was used to induce hepatic steatosis in L02 cells after 24 h treatment, and an in vitro NAFLD cell model was established. After termination of incubation, cell counting kit-8(CCK-8) assay was performed to detect the cell viability; Oil red O staining was employed to detect the intracellular lipid accumulation; enzyme-linked immunosorbnent assay(ELISA) was performed to measure the level of triglyceride(TG); to monitor autophagy in L02 cells, transmission electron microscopy(TEM) was used to observe the autophagosomes; LysoBrite Red was used to detect the pH change in lysosome; transfection with mRFP-GFP-LC3 adenovirus was conducted to observe the autophagic flux; Western blot was performed to determine the expression of autophagy marker LC3B-Ⅰ/LC3B-Ⅱ, autophagy substrate p62 and silent information regulator 1(SIRT1)/adenosine 5'-monophosphate(AMP)-activated protein kinase(AMPK) signaling pathway.

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Diabetic nephropathy (DN) is thought to be the major cause of end-stage renal disease. Due to its complicated pathogenesis and the low efficacy of DN treatment, a deep understanding of new etiological factors may be useful. Ferroptosis, a nonapoptotic form of cell death, is characterized by the accumulation of iron-dependent lipid peroxides to lethal levels.

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Esophageal squamous cell carcinoma (ESCC) is an invasive malignant tumor with a high incidence rate and mortality. It is imperative to study its tumorigenesis and development for better treatment. CircRNA has been proven to play an important role in various cancers.

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Objective: To evaluate the efficacy of drug-eluting beads transarterial chemoembolization (DEB-TACE) in the treatment of hepatocellular carcinoma (HCC) by propensity score matching (PSM) technique.

Methods: The clinical data of HCC patients treated with DEB-TACE in the First Affiliated Hospital of Zhengzhou University from June 2017 to June 2020 as well as their 36-month-follow-up data were retrospectively analyzed. The subjects were matched in pairs based on baseline data and laboratory indicators using the PSM method and divided into a pirarubicin group (n = 34), raltitrexed group (n = 34), and arsenic trioxide group (n = 34).

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Cytochrome P450 metabolism studies of [6]-gingerol, [8]-gingerol, and [10]-gingerol by liver microsomes of humans and different species combined with expressed CYP enzymes.

RSC Adv

February 2023

International Cooperative Laboratory of Traditional Chinese Medicine Modernization, Innovative Drug Development of Ministry of Education of China/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/College of Pharmacy, Jinan University Guangzhou 510632 China

Gingerols, mainly [6]-gingerol (6G), [8]-gingerol (8G), and [10]-gingerol (10G), are the functional and specific pungent phytochemicals in ginger. However, poor oral bioavailability limits their applications owing to extensive metabolism. The present study aims to characterize the cytochrome P450 (CYP) metabolic characteristics of 6G, 8G, and 10G by using pooled human liver microsomes (HLM), different animal liver microsomes, and the expressed CYP enzymes.

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In this study, two novel fluorine-functionalized crystalline covalent organic frameworks (COFs), namely DF-TAPB-COF and DF-TATB-COF, were synthesized, and their ordered structure, porosity, suitable pore size, and abundant fluorine groups were expected to serve as effective carriers in drug delivery. The excellent cell viability of DF-TAPB-COF and DF-TATB-COF was verified using MTT assays. Both COFs exhibited very high loading capacities in terms of drug loading performance, in particular the drug loading rate of DF-TAPB-COF for 5-fluorouracil (5-FU) was up to 69%.

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Background: Peptidylprolyl cis-trans isomerase B (PPIB) plays an important role in the process of inflammation through binding RNA, but the molecular pathogenesis is not yet clearly understood. The objective of this study was to investigate and verify the PPIB-regulated gene expressions and alternative splicing in Hela cells.

Methods: We examined the PPIB-regulated transcriptomes in HeLa cells using RNA-seq data.

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Primary pulmonary artery sarcoma (PAS) is a malignant neoplasm of the pulmonary vascular system originating from the intima, with clinical and imaging manifestations similar to those of pulmonary thromboembolism (PTE), and is often misdiagnosed. Spectral CT and PET/CT can clearly show the extent and metastasis of PAS and are valuable in visualizing adjacent structures such as lungs, bronchi, and mediastinum, providing a strong imaging basis for the diagnosis and differentiation of PAS, allowing treatment monitoring and follow-up.

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Objectives: The prognosis of gallbladder carcinoma (GBC) is poor, with a less than 5% five-year survival rate. Identifying the mechanisms underlying GBC occurrence and advancement is necessary to improve GBC patient prognosis and survival rates. The phosphatidylinositol 3-kinase (PI3K)/serine-threonine kinase (AKT) pathway is involved in cancer deterioration, tumor growth, cell proliferation, and distant metastasis.

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Long noncoding RNAs (lncRNAs) are defined as a class of non-protein-coding RNAs that are longer than 200 nucleotides. Previous studies have shown that lncRNAs play a vital role in the progression of multiple diseases, which highlights their potential for medical applications. The lncRNA hepatocyte nuclear factor 1 homeobox A (HNF1A) antisense RNA 1 (HNF1A-AS1) is known to be abnormally expressed in multiple cancers.

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Current status and future perspectives of immune checkpoint inhibitors in extensive-stage small cell lung cancer.

Am J Cancer Res

June 2022

Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital Zhengzhou 45008, P. R. China.

Small-cell lung cancer (SCLC) is a type of neuroendocrine neoplasms with high aggressiveness and poor prognosis. Chemotherapy has been the standard first-line therapy for SCLC over the past several decades. In recent years, results of randomized phase III CASPIAN and IMpower-133 trials indicated that the combination of immune checkpoint inhibitors (ICIs) with platinum-etoposide chemotherapy improved the overall survival (OS) of patients with extensive stage small-cell lung cancer (ES-SCLC), which has transformed the treatment model for ES-SCLC.

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Objective: To investigate the effect of liraglutide combined with metformin or acarbose on glucose control in patients with type 2 diabetes mellitus (T2DM) and to analyze the risk factors of gastrointestinal adverse reactions.

Methods: This retrospective study was conducted on 88 T2DM patients who were treated in our hospital from February 2019 to August 2021. The patients were divided into Group A (n=40) and Group B (n=48) according to different treatment methods.

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The importance of microRNAs (miRNAs or miRs) has attracted more and more attention. MiRNA is an approximately 22-nucleotide, single-stranded, non-coding RNA molecule that affects the expression of downstream target genes. MiRNAs regulate the occurrence and development of human diseases.

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Breast cancer is the leading cause of cancer-related deaths among women worldwide. Human epidermal growth factor receptor 2 (HER2) overexpression is significantly associated with higher breast tumor proliferation rates. MFCH401, a 9-mer specific peptide fragment (DTILWKDIF) in the extracellular domain of the HER2 protein, is an attractive epitope for developing anti-HER2 cancer vaccines.

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Specific and accurate detection of single nucleotide variants (SNVs) plays significant roles in pathogenic gene research and clinical applications. However, the sensitive but ultra-specific detection of rare variants in biological samples still remains challenging. Herein, we report a novel, robust and practical SNV assay by integrating the outstanding features of high selectivity of an artificial mismatched probe, and the powerful loop-mediated isothermal amplification.

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