245 results match your criteria: "The Fourth Affiliated Hospital of Zhejiang University[Affiliation]"

The purpose of this study was to present the surgical technique of Unilateral Biportal Endoscopic (UBE) decompression combined with percutaneous pedicle screws for the treatment of thoracolumbar burst fractures with secondary spinal stenosis. Thoracolumbar burst fracture is a common traumatic disease in spinal surgery. In the Arbeitsgemeinschaft für Osteosynthesefragen (AO) classification of thoracolumbar fractures, Type A fractures have the highest incidence, accounting for about 70%, with A1 and A3 types being the most common.

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Adipocyte-derived ferroptotic signaling mitigates obesity.

Cell Metab

December 2024

The Second Affiliated Hospital, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou 310058, China; School of Public Health, Basic Medical Sciences, School of Pharmacology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, China; School of Public Health, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China. Electronic address:

Ferroptosis is characterized as an iron-dependent and lipophilic form of cell death. However, it remains unclear what role ferroptosis has in adipose tissue function and activity. Here, we find a lower ferroptotic signature in the adipose tissue of individuals and mice with obesity.

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Evidence mapping was performed to review the clinical trials and systematic reviews about the treatment of hyperlipidemia with Chinese patent medicines in recent ten years. A total of 387 clinical studies and 18 systematic reviews/Meta-analysis involving 45 Chinese patent medicines commonly used in the treatment of hyperlipidemia in recent ten years were retrieved from Chinese and English academic publication databases. The article information was extracted by reading the abstract and full text, and the evidence of publication trend, combined medication, intervention course, complications, and outcome indicators was sorted out.

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KPNA3 regulates histone locus body formation by modulating condensation and nuclear import of NPAT.

J Cell Biol

January 2025

Department of General Intensive Care Unit and Department of Biochemistry of the Second Affiliated Hospital, Liangzhu Laboratory, Zhejiang University School of Medicine, Hangzhou, China.

The histone locus body (HLB) is a membraneless organelle that determines the transcription of replication-dependent histones. However, the mechanisms underlying the appropriate formation of the HLB in the nucleus but not in the cytoplasm remain unknown. HLB formation is dependent on the scaffold protein NPAT.

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Inhibition of cathepsin L ameliorates inflammation through the A20/NF-κB pathway in endotoxin-induced acute lung injury.

iScience

November 2024

Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.

Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is a severe inflammatory condition that remains refractory; however, its molecular mechanisms are largely unknown. Previous studies have shown numerous compounds containing 4-indolyl-2-aminopyrimidine that display strong anti-inflammatory properties. In our research, we identified that a 4-Indole-2-Arylaminopyrimidine derivative named "IAAP" suppressed lipopolysaccharide (LPS)-induced inflammation.

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ER-phagy is an evolutionarily conserved mechanism crucial for maintaining cellular homeostasis. However, significant gaps persist in our understanding of how ER-phagy and the ER network vary across cell subtypes, tissues, and organs. Furthermore, the pathophysiological relevance of ER-phagy remains poorly elucidated.

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Primary Large-Cell Neuroendocrine Carcinoma of the Breast.

Diagnostics (Basel)

October 2024

Department of Radiation Oncology, The Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.

Breast neuroendocrine carcinoma (NECB) is a rare type of breast tumor. Large-cell neuroendocrine carcinomas of the breast (LCNECB) are a special and rare histological subtype of NECB. Here, we present a case of a 59-year-old woman who was diagnosed with an LCNECB.

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Article Synopsis
  • The study assessed contrast sensitivity function (CSF) in patients recovering from Vogt-Koyanagi-Harada (VKH) disease, particularly focusing on those with and without sunset glow fundus (SGF).
  • Patients with SGF exhibited significantly impaired CSF compared to normal controls, especially at medium and high spatial frequencies, while no notable differences were found between the non-SGF group and controls.
  • The results indicate that despite good visual acuity recovery, both CSF and outer retinal thickness were reduced in VKH patients, suggesting that CSF is a valuable measure for evaluating functional vision in these cases.
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Article Synopsis
  • LIMP-2, or SCARB2, is a key lysosomal membrane protein involved in various functions like acting as a virus receptor, aiding in enzyme targeting, and transporting lipids such as phospholipids and cholesterol.
  • Recent research indicates that LIMP-2 might play a role in the contact points between lysosomes and the endoplasmic reticulum (ER) by interacting with the proteins STARD3 and VAPB.
  • The study suggests that LIMP-2 could help facilitate cholesterol transport from lysosomes to the ER, highlighting its potential role in lipid trafficking and inter-organelle communication.
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  • Advances in diagnosis and treatment have highlighted how impaired right ventricular (RV) function significantly impacts heart failure prognosis, regardless of left ventricular ejection fraction.
  • Right heart failure (RHF) can arise from multiple conditions, such as congenital heart disease and pulmonary arterial hypertension, and may occur after left ventricular assist devices are used.
  • Recent studies focus on the use of SGLT2 inhibitors, particularly gliflozins, in improving RV function by addressing issues like RV overload and inflammation, while also discussing their implications for future clinical approaches and research.
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Multiple glioblastomas (GBMs) are aggressive, malignant, and sporadic brain tumors. We present the case of a 58-year-old patient with two GBMs in the right frontal lobe and associated edema. The patient presented with sudden left limb weakness accompanied by abnormal gait for five consecutive days.

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Article Synopsis
  • The study aimed to evaluate the safety and effectiveness of a varicose vein sealant kit for treating dysfunction in the great saphenous vein through a randomized controlled trial involving 180 patients across 9 hospitals.
  • Participants were divided into an experimental group, which used the sealant kit, and a control group, which received radiofrequency ablation, with their outcomes compared after surgery.
  • The main focus was on the complete closure rate of the great saphenous vein at 3 months post-surgery, along with other secondary measures, including pain levels and overall complication rates, to determine if the sealant kit was as effective as traditional methods.
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Long-term exposure to polystyrene microplastics reduces macrophages and affects the microbiota-gut-brain axis in mice.

Toxicology

December 2024

The Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China. Electronic address:

The remarkably increase in plastic use has led to worldwide pollution involving microplastics (MPs), which have been shown to be potentially hazardous substances. Although several studies have focused on the effects of small MPs on the brain and behavior of aquatic species, their effects on the mouse brain and the underlying mechanisms remain unclear. Our study's aim was to investigate the effects of long-term oral ingestion of different sizes of MPs (0.

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In this manuscript, we have investigated the dielectric and antibacterial potential of hydrothermally synthesized ZnMnO nanoparticles. The synthesized nanoparticles were annealed at various temperatures ranging from 450 to 650 °C with a step of 50 °C to modulate the structural, vibrational, dielectric, and antibacterial properties. XRD data confirmed the hexagonal structure of the synthesized samples and crystalline size was decreased to 4.

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Lactylation stabilizes TFEB to elevate autophagy and lysosomal activity.

J Cell Biol

November 2024

Center for Metabolism Research, The Fourth Affiliated Hospital of Zhejiang UniversitySchool of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China.

Article Synopsis
  • TFEB is a key factor in the regulation of lysosomes and autophagy, and its activity can be modified post-translationally.
  • Lactate can chemically modify TFEB through a process called lactylation, which stabilizes TFEB by preventing its degradation.
  • Increased levels of lactylated TFEB were found in pancreatic cancer samples, suggesting that lactylation may enhance autophagy in rapidly growing cancer cells.
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Introduction: Biportal endoscopy, a newly developed technique rapidly applied in lumbar spine surgery, has recently been utilized for treating cervical spine diseases. We present a case of cervical spondylotic myelopathy managed with open-door laminoplasty fixed by mini-plate and performed with biportal endoscopy assistance.

Presentation Of Case: The patient, a 62-year-old woman, presented with gradually developing weakness in the lower extremities.

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Background: RNA pseudouridylation is a critical post-transcriptional modification that influences gene expression and impacts various biological functions. Despite its significance, the role of mRNA pseudouridylation in cancer remains poorly understood. This study investigates the impact of pseudouridine synthase 7 (PUS7)-mediated pseudouridylation of Alpha-ketoglutarate-dependent Dioxygenase alkB Homolog 3 (ALKBH3) mRNA in gastric cancer.

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Long-chain free fatty acids (FFAs) accumulation and oxidative toxicity is a major cause for several pathological conditions. The mechanisms underlying FFA cytotoxicity remain elusive. Here we show that palmitic acid (PA), the most abundant FFA in the circulation, induces S403 phosphorylation of SQSTM1/p62 (sequestosome 1) and its aggregation, which sequesters KEAP1 and activates the non-canonical SQSTM1-KEAP1-NFE2L2 antioxidant pathway.

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Coordination between midcingulate cortex and retrosplenial cortex in pain regulation.

Front Mol Neurosci

August 2024

NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain, Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China.

Introduction: The cingulate cortex, with its subregions ACC, MCC, and RSC, is key in pain processing. However, the detailed interactions among these regions in modulating pain sensation have remained unclear.

Methods: In this study, chemogenetic tools were employed to selectively activate or inhibit neuronal activity in the MCC and RSC of rodents to elucidate their roles in pain regulation.

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A predictive model for therapy failure in patients with chronic myeloid leukemia receiving tyrosine kinase inhibitor therapy.

Blood

October 2024

Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.

Although tyrosine kinase inhibitor (TKI) therapy has markedly improved the survival of people with chronic-phase chronic myeloid leukemia (CML), 20% to 30% of people still experienced therapy failure. Data from 1955 consecutive patients with chronic-phase CML diagnosed by the European LeukemiaNet recommendations from 1 center receiving initial imatinib or a second-generation (2G) TKI therapy were interrogated to develop a clinical prediction model for TKI-therapy failure. This model was subsequently validated in 3454 patients from 76 other centers.

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Mucormycosis has become more prevalent during the COVID-19 pandemic and is associated with a high mortality rate. However, concurrent host allergic reactions, invasive pulmonary mucormycosis, and disseminated mucormycosis are rarely reported. Herein, we describe a case of disseminated mucormycosis initially misdiagnosed as a malignancy that developed from allergic bronchopulmonary mycosis caused by in a woman with post-SARS-CoV-2 infection.

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Macroautophagic/autophagic and endocytic pathways play essential roles in maintaining homeostasis at different levels. It remains poorly understood how both pathways are coordinated and fine-tuned for proper lysosomal degradation of diverse cargoes. We and others recently identified a Golgi-resident RAB GTPase, RAB2A, as a positive regulator that controls both autophagic and endocytic pathways.

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CCL11/CCR3-dependent eosinophilia alleviates malignant pleural effusions and improves prognosis.

NPJ Precis Oncol

June 2024

Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Zhejiang Province, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.

Malignant pleural effusion (MPE) is a common occurrence in advanced cancer and is often linked with a poor prognosis. Eosinophils were reported to involve in the development of MPE. However, the role of eosinophils in MPE remains unclear.

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Macrophage Extracellular Traps Suppress Particulate Matter-Induced Airway Inflammation.

Am J Pathol

September 2024

Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China. Electronic address:

Accumulating evidence has substantiated the potential of ambient particulate matter (PM) to elicit detrimental health consequences in the respiratory system, notably airway inflammation. Macrophages, a pivotal component of the innate immune system, assume a crucial function in responding to exogenous agents. However, the roles and detailed mechanisms in regulating PM-induced airway inflammation remain unclear.

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A new era of mutation rate analyses: Concepts and methods.

Zool Res

July 2024

Center for Evolutionary & Organismal Biology and the Fourth Affiliated Hospital of Zhejiang University, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China. E-mail:

The mutation rate is a pivotal biological characteristic, intricately governed by natural selection and historically garnering considerable attention. Recent advances in high-throughput sequencing and analytical methodologies have profoundly transformed our understanding in this domain, ushering in an unprecedented era of mutation rate research. This paper aims to provide a comprehensive overview of the key concepts and methodologies frequently employed in the study of mutation rates.

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