Publications by authors named "LiZhi Niu"

Background: Bronchial cysts are congenital malformations usually located in the mediastinum, and intrapulmonary localization is very rare. Cryoablation is a novel therapeutic approach that promotes tumor necrosis and stimulates anti-tumor immune responses.

Case Summary: This article reports a case of a 68-year-old male patient who was diagnosed with an intrapulmonary bronchogenic cyst by computed tomography examination and pathology, and the patient subsequently underwent cryoablation therapy and achieved complete response with after 3 months of follow-up.

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Article Synopsis
  • * Traditional treatments like chemotherapy and radiotherapy offer limited benefits for these patients, prompting the exploration of alternatives such as iodine-125 seed interstitial brachytherapy.
  • * In 2023, the Chinese College of Interventionalists convened experts to create standardized guidelines for this treatment, covering everything from suitability and preparation to potential complications and follow-up care.
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Article Synopsis
  • This expert consensus outlines guidelines for diagnosing and treating lung cancer that appears as multiple ground glass nodules.
  • Key topics include strategies for monitoring patients, how to differentiate between types of nodules, methods for accurate diagnosis and staging, treatment options, and follow-up care after treatment.
  • The review emphasizes the importance of informed clinical practices based on the latest literature.
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Background: Irreversible electroporation (IRE) is a novel local tumor ablation approach with the potential to stimulate an antitumor immune response. However, it is not effective in preventing distant metastasis in isolation. This study aimed to compare the potential of augmenting the antitumor immune response in patients with locally advanced pancreatic cancer (LAPC) who underwent IRE combined with chemotherapy and PD-1/PD-L1 blockade with those who underwent IRE combined with chemotherapy.

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The main contents of the Clinical Practice Guidelines on Image-Guided Thermal Ablation (IGTA) of Primary and Metastatic Lung Tumors (2022 Edition) include the following: epidemiology of primary and metastatic lung tumors; the concepts of the IGTA and common technical features; procedures, indications, contraindications, outcomes evaluation, and related complications of IGTA on primary and metastatic lung tumors; and limitations and future development.

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Context: polysaccharide (APS) is a new tumour therapeutic drug, that has an inhibitory effect on a variety of solid tumours. Tumour cell immunosuppression is related to the up-regulation of programmed death ligand 1 (PD-L1). However, whether APS exerts its antitumor effect by regulating PD-L1 remains unclear.

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Multiple endocrine neoplasia type 1 (MEN1) is an inherited disease caused by mutations in the gene encoding a nuclear protein menin. Among those different endocrine tumors of MEN1, the pancreatic neuroendocrine tumors (PNETs) are life-threatening and frequently implicated. Since there are uncertainties in genotype and phenotype relationship and there are species differences between humans and mice, it is worth it to replenish the mice model with human cell resources.

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Background: Irreversible electroporation (IRE) is a new local ablation technique for pancreatic cancer. The aim of this study is to analyse the safety and effectiveness of simultaneous gemcitabine and percutaneous CT-guided IRE for locally advanced pancreatic cancer (LAPC).

Materials And Methods: From October 2016 to January 2018, 61 patients with LAPC who received simultaneous gemcitabine and IRE therapy (GEM-IRE group,  = 31) or IRE alone therapy (IRE group,  = 30).

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Background And Aims: Irreversible electroporation (IRE) is an emerging local ablation therapy which may be effective for unresectable tumors. This study aimed to evaluate the safety and efficacy of percutaneous IRE in the treatment of hepatocellular carcinoma (HCC) abutting the diaphragm.

Methods: A total of 26 participants with 39 tumors abutting the diaphragm were prospectively evaluated between July 2015 and September 2018.

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Purpose: To assess the safety and efficacy of cryoablation in patients with lung nodules mainly composed of ground-glass opacities (GGOs).

Materials And Methods: In this retrospective study, 50 patients (mean age, 65.0 years ± 12.

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Discontinuity and non-smoothness of system displacement and velocity caused by mechanical impact make the related research on dynamics of vibro-impact systems very difficult and complex. For the sake of bypassing the problems resulting from impact to some extent, Zhuravlev and Ivanov coordinate transformations were proposed, which can effectively convert the vibro-impact system to one without impact terms. In this paper, a more direct and universal transformation for general bilateral rigid vibro-impact systems is proposed.

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The Expert Consensus reviews current literatures and provides clinical practice guidelines for thermal ablation of pulmonary subsolid nodules or ground-glass nodule (GGN). The main contents include the following: (1) clinical evaluation of GGN; (2) procedures, indications, contraindications, outcomes evaluation, and related complications of thermal ablation for GGN; and (3) future development directions.

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Introduction: Unresectable hilar cholangiocarcinoma (UHC) is a malignant tumor and has a poor prognosis. IRE is a novel non-thermal ablative therapy that causes cellular apoptosis electrical impulses. To compare the curative effect for UHC, chemotherapy plus concurrent IRE and chemotherapy alone were set up.

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Purpose: To investigate the safety and efficacy of locoregional therapy plus adoptive transfer of allogeneic gamma delta (γδ) T cells for patients with hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC).

Methods: Thirty patients with HCC and 29 patients with ICC were randomly assigned to receive locoregional therapy (HCC, Group A, n = 15; ICC, Group C, n = 15) or locoregional therapy plus γδ T cell therapy (HCC, Group B, n = 15; ICC, Group D, n = 14). Groups A and C only received locoregional ablation (cryoablation or irreversible electroporation), whereas Groups B and D received locoregional therapy followed by adoptive transfer of allogeneic γδ T cells.

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Pancreatic cancer (PC) is a lethal disease with extremely high mortality. Although surgical resection is the optimal therapeutic approach for PC, about 30%-40% of those patients are not candidates for surgical resection when diagnosed. Chemotherapy and radiotherapy also could not claim a desirable effect on PC.

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In this paper, the transient response of the time-delay system under additive and multiplicative Gaussian white noise is investigated. Based on the approximate transformation method, we convert the time-delay system into an equivalent system without time delay. The one-dimensional Ito stochastic differential equation with respect to the amplitude response is derived by the stochastic averaging method, and Mellin transformation is utilized to transform the related Fokker-Planck-Kolmogorov equation in the real numbers field into a first-order ordinary differential equation (ODE) of complex fractional moments (CFM) in the complex number field.

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"The Expert Group on Tumor Ablation Therapy of Chinese Medical Doctor Association, The Tumor Ablation Committee of Chinese College of Interventionalists, The Society of Tumor Ablation Therapy of Chinese Anti-Cancer Association and The Ablation Expert Committee of the Chinese Society of Clinical Oncology" have organized multidisciplinary experts to formulate the consensus for thermal ablation of pulmonary subsolid nodules or ground-glass nodule (GGN). The expert consensus reviews current literatures and provides clinical practices for thermal ablation of GGN. The main contents include: (1) clinical evaluation of GGN, (2) procedures, indications, contraindications, outcomes evaluation and related complications of thermal ablation for GGN and (3) future development directions.

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The primary problem associated with fibrosarcoma is its high potential to metastasize to the lung. Aberrant expression of SAPCD2 has been widely reported to be implicated in the progression and metastasis in multiple cancer types. However, the clinical significance and biological roles of SAPCD2 in fibrosarcoma remain unknown.

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Background: Locally advanced pancreatic cancer (LAPC) is a common malignant digestive system tumor that ranks as the fourth leading cause of cancer-related death in the world. The prognosis of LAPC is poor even after standard treatment. Irreversible electroporation (IRE) is a novel ablative strategy for LAPC.

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Immunotherapy has limited efficacy against locally advanced pancreatic cancer (LAPC) due to the presence of an immunosuppressive microenvironment (ISM). Irreversible electroporation (IRE) can not only induce immunogenic cell death, but also alleviate immunosuppression. This study aimed to investigate the antitumor efficacy of IRE plus allogeneic γδ T cells in LAPC patients.

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Cryoablation has become a popular modality to treat a variety of malignant tumors in solid organs and soft tissues. In the future, the use of cryoablation should focus on its abscopal effect. The present review discusses the increased immune response triggered by cryoablation alone or by cryoablation combined with immunotherapies, which can improve the immune response and limit immunosuppression.

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Background: Solid pseudopapillary tumor (SPT) of the pancreas is a rare pancreatic tumor and 10% to 15% of cases are associated with metastasis. Cryoablation is a new method that can induce tumor necrosis, and treatment of tumors by cryoablation can cause anti-tumor immune responses.

Case Summary: A 16-year-old woman with SPT of the pancreas developed liver metastases 5.

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Background: Pancreatic cancer has a poor prognosis; 40%-50% of patients have liver metastases at the time of initial diagnosis and only 15%-20% undergo surgical resection. Irreversible electroporation (IRE) is a new, non-thermal local ablation method for solid tumors, which can induce cell membrane permeabilization, resulting in unrecoverable nanoscale perforation and apoptotic cell death without damaging the structural components of tissues.

Case Summary: We report the case of a 66-year-old female patient with liver metastasis from pancreatic cancer with a pathological diagnosis of poorly differentiated adenocarcinoma.

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BACKGROUNDThe anti-programmed cell death 1 (anti-PD-1) antibody pembrolizumab is clinically active against non-small cell lung cancer (NSCLC). In addition to T cells, human natural killer (NK) cells, reported to have the potential to prolong the survival of patients with advanced NSCLC, also express PD-1. This study aimed to investigate the safety and efficacy of pembrolizumab plus allogeneic NK cells in patients with previously treated advanced NSCLC.

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