2,775 results match your criteria: "LANZHOU UNIVERSITY SECOND HOSPITAL[Affiliation]"

To investigate the value of preoperative MRI features and ADC histogram analysis for evaluating tumor-infiltrating CD8+ T cells in meningiomas. In this single-center cross-sectional study, we conducted a retrospective analysis of clinical, imaging, and pathological data from 84 patients with meningioma and performed immunohistochemical staining to quantitatively evaluate CD8+ T cells. Using X-Tile software, we divided the patients into high-and low-CD8+ T cells groups based on cut-off values.

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Gastric cancer, a prevalent malignant tumor worldwide, poses a significant challenge to global health. Despite ongoing advancements in treatment methods, its high incidence and mortality rates remain concerning. Although progress in treating gastric cancer is encouraging, a more critical focus is on enhancing prevention efforts.

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Unlabelled: Juvenile myoclonic epilepsy (JME) exhibits abnormal functional connectivity of brain networks at multiple frequencies. We used the multilayer network model to address the heterogeneous features at different frequencies and assess the mechanisms of functional integration and segregation of brain networks in JME patients. To address the possibility of false edges or missing edges during network construction, we combined multilayer networks with link prediction techniques.

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Purpose: The purpose of this study is to propose new ultrasound scores to assess inflammatory bowel disease (IBD) activity and to analyze their accuracy in assessing disease severity. In addition to this, to validate that intestinal ultrasound can be used as a follow-up tool for the assessment of IBD.

Methods: One hundred and thirty-six adult IBD patients who underwent intestinal ultrasound.

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Objective: Spinal tuberculosis (STB) and Brucella spondylitis (BS) represent two types of granulomatous infections affecting the spine, which exhibit significant similarities that often result in misdiagnosis and overlooked diagnoses during preoperative evaluations. This study aims to identify non-invasive evaluative indicators that facilitate the differentiation between STB and BS.

Methods: This study conducted a retrospective collection of clinical features, laboratory tests, and imaging characteristics from 89 patients diagnosed with STB and 66 patients diagnosed with BS.

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Following myocardial infarction (MI), the accumulation of CD86-positive macrophages in the ischemic injury zone leads to secondary myocardial damage. Precise pharmacological intervention targeting this process remains challenging. This study engineered a nanotherapeutic delivery system with CD86-positive macrophage-specific targeting and ultrasound-responsive release capabilities.

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Messenger RNA (mRNA) therapy is an innovative approach that delivers specific protein-coding information. By promoting the ribosomal synthesis of target proteins within cells, it supplements functional or antigenic proteins to treat diseases. Unlike traditional gene therapy, mRNA does not need to enter the cell nucleus, reducing the risks associated with gene integration.

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Background: For patients with osteoporosis and rotator cuff tears, there is still no consensus on current treatment methods. The material, structure, and number of anchors have important effects on the repair outcome.

Purpose: To investigate the use of chitosan quaternary ammonium salt-coated nickel-titanium memory alloy (NTMA) anchors to treat rotator cuff injury in shoulders with osteoporosis in a rabbit osteoporosis model.

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Gastric cancer-derived exosomal let-7 g-5p mediated by SERPINE1 promotes macrophage M2 polarization and gastric cancer progression.

J Exp Clin Cancer Res

January 2025

Department of General Surgery, The Second Clinical Medical School, The Second Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu, 730000, China.

Background: Tumor-associated macrophages (TAMs), particularly M2-polarized TAMs, are significant contributors to tumor progression, immune evasion, and therapy resistance in gastric cancer (GC). Despite efforts to target TAM recruitment or depletion, clinical efficacy remains limited. Consequently, the identification of targets that specifically inhibit or reprogram M2-polarized TAMs presents a promising therapeutic strategy.

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Purpose: The aim of the study was to investigate the value of SwiftScan Step-and-Shoot Continuous (SSC) scanning mode in enhancing image quality and to explore appropriate scanning parameters for reducing scan time.

Methods: This study was composed of a phantom study and two clinical tests. The differences in visual image quality scores, coefficient of variance (COV) of the background, image signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and recovery coefficient (RC) of the sphere were compared between SSC mode and traditional Step-and-Shoot (SS) mode in the phantom study.

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Purpose: To assess and compare the diagnostic efficiency of histogram analysis of monochromatic and iodine images derived from spectral CT in predicting Ki-67 expression in gastric gastrointestinal stromal tumors (gGIST).

Methods: Sixty-five patients with gGIST who underwent spectral CT were divided into a low-level Ki-67 expression group (LEG, Ki-67 < 10%, n = 33) and a high-level Ki-67 expression group (HEG, Ki-67 ≥ 10%, n = 32). Conventional CT features were extracted and compared.

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Purpose: This study aims to investigate the relationship between epicardial adipose tissue (EAT) and left atrial function in patients with preserved ejection fraction heart failure (HFpEF).

Methods: We conducted a cross-sectional study involving 113 patients diagnosed with HFpEF and 48 control subjects without heart failure. Echocardiography was performed to assess EAT thickness and left atrial function was quantified using Autostrain left atrium (LA), including left atrial strain during reservoir phase (LASr), left atrial strain during conduit phase (LAScd), and left atrial strain during contraction phase (LASct).

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Clinical characteristics and risk factors analysis of bilateral renal tuberculosis.

Int Urol Nephrol

December 2024

Department of Urology, Lanzhou University Second Hospital, Lanzhou University, No. 82 Cui Ying, Lanzhou, 730030, Gansu Province, China.

Objective: To analyze and discuss the clinical characteristics and risk factors of bilateral renal tuberculosis.

Methods: A retrospective study was performed on 446 patients who were diagnosed with renal TB. Among these patients, 69 patients with bilateral renal TB were selected as the observation group, and 377 patients with unilateral renal TB served as the control group.

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Everolimus in pituitary tumor: a review of preclinical and clinical evidence.

Front Endocrinol (Lausanne)

December 2024

Department of Endocrinology and Metabolism, Lanzhou University Second Hospital, Lanzhou, Gansu, China.

Although pituitary tumors (PTs) are mostly benign, some PTs are characterized by low surgical resection rates, high recurrence rates, and poor response to conventional treatments and profoundly affect patients' quality of life. Everolimus (EVE) is the only FDA-approved mTOR inhibitor, which can be used for oral treatment. It effectively inhibits tumor cell proliferation and angiogenesis.

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Perioperative hypothermia is a frequent clinical complication resulting from the cold environment of the operating room and prolonged skin exposure, leading to adverse outcomes and increased healthcare burdens. To address this issue, this narrative review discusses in detail the currently common warming strategies for perioperative hypothermia .Forced air warming (FAW) systems are widely recognized as the most effective intervention for maintaining core body temperature.

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Assessing the toxicological impact of PET-MPs exposure on IVDD: Insights from network toxicology and molecular docking.

J Environ Manage

December 2024

Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, Gansu, 730030, PR China; The Second Clinical School, Lanzhou University, Lanzhou, Gansu, 730030, PR China; Orthopaedics Key Laboratory of Gansu Province, Lanzhou, Gansu, 730030, PR China. Electronic address:

Polyethylene terephthalate microplastics (PET-MPs) have emerged as a significant environmental concern due to their persistence and potential health hazards. Their role in degenerative diseases, particularly intervertebral disc degeneration (IVDD), remains poorly understood, highlighting the need for systematic evaluation of their molecular toxicity. In this study, network toxicology and molecular docking approaches were applied to investigate the toxicological mechanisms of PET-MPs-induced IVDD.

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Astrogliosis and glial scar in ischemic stroke - focused on mechanism and treatment.

Exp Neurol

December 2024

Department of Neurology, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China. Electronic address:

Ischemic stroke is a kind of neurological dysfunction caused by cerebral ischemia. Astrocytes, as the most abundant type of glial cells in the central nervous system, are activated into reactive astrocytes after cerebral ischemia, and this process involves the activation or change of a series of cell surface receptors, ion channels and ion transporters, GTPases, signaling pathways, and so on. The role of reactive astrocytes in the development of ischemic stroke is time-dependent.

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Sex differences in disease: sex chromosome and immunity.

J Transl Med

December 2024

The Second Hospital and Clinical Medical School, Lanzhou University, Lanzhou, 730000, China.

Sex is a fundamental biological variable that influences immune system function, with sex chromosomes (X and Y) playing a central role in these differences. Despite substantial evidence of disparities in immune responses between males and females, biomedical research has historically overlooked sex as a critical factor. This oversight has contributed to the observed disparities in susceptibility to autoimmune diseases, infectious diseases, and malignancies between the sexes.

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Pancreatic adenosquamous carcinoma (PASC) is a rare subtype of pancreatic cancer (PC), with no established consensus on the optimal treatment for postoperative liver metastasis recurrence. We report a case of a 48-year-old male patient who underwent radical surgery and was pathologically diagnosed with microsatellite instability-high (MSI-H) PASC. The patient experienced liver metastasis recurrence following single-agent gemcitabine adjuvant chemotherapy.

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Applications of carbon dot-mediated cardiomyocyte maturation in regenerative medicine: a review.

Nanomedicine (Lond)

December 2024

Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, China.

The maturation of cardiomyocytes (CMs) plays key roles in regenerative medicine and the treatment of cardiovascular diseases via stem cell-derived CMs. Carbon dots (CDs) have good biocompatibility, optical properties, and electrophysical properties and have been widely applied in bioimaging, biosensors, and biotherapy. In this review, we comprehensively summarize recent advances in promoting the maturation of CMs, mainly human pluripotent stem cell-derived CMs, and related regenerative medicine.

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Daily activities change is linked to acute angle closure occurrence in COVID-19 co-infected patients.

BMC Ophthalmol

December 2024

National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 3250027, China.

Objectives: To analyze the influence of daily activity-related factors associated with COVID-19 infection on the occurrence of acute angle closure (AAC).

Methods: A multicenter hospital-based study was conducted at 23 ophthalmic centers in 17 provincial-level regions across China to recruit patients with confirmed AAC during the post-lockdown time of COVID-19 (P-TOC) from Dec 7, 2022, to Jan 17, 2023, and three lockdown time of COVID-19 (TOC) periods, which included the TOC-2022 (Sep 7, 2022 - Dec 6, 2022), TOC-2021(Sep 7, 2021 - Jan 6, 2022) and TOC-2020 (Sep 7, 2020 - Jan 6, 2021). Patient information, including demographic, a questionnaire on daily activity changes during the AAC period, COVID-19 history, and eye examination results, was collected.

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Dynamic analysis of frequency specificity in multilayer brain networks.

Brain Res

December 2024

Department of Nuclear Magnetic Resonance, Lanzhou University Second Hospital, Lanzhou 730030, China. Electronic address:

The brain is a highly complex and delicate system, and its internal neural processes are manifested as the interweaving and superposition of multi-frequency neural signals. However, traditional brain network studies are often limited to the whole frequency band or a specific frequency band, ignoring the potentially profound impact of the diversity of information within the frequency on the dynamics of brain networks. To comprehensively and deeply analyze this phenomenon, the present study is devoted to exploring the specific performance of brain networks at different frequencies.

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Background: Pancreatic adenocarcinoma (PAAD) is a deadly cancer marked by extensive collagen deposition and limited response to immunotherapy. Discoidin domain receptor1 (DDR1), part of the transmembrane receptor tyrosine kinase family, is linked to inflammation regulation and immune cell infiltration. However, its role in controlling cytokines and chemokines in the microenvironment of PAAD is still unclear.

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Double-bundle (DB) anterior cruciate ligament (ACL) reconstruction has biomechanical advantages over single-bundle reconstruction. However, most studies perform the DB reconstruction with 2 femoral tunnels, which fails to provide an entire femoral footprint for ACL reconstruction. In this study, we describe a femoral double-bundle footprint technique for ACL reconstruction, named the tendon groove technique.

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