Publications by authors named "Dingyi Liu"

Background: Exosomes are vesicles secreted by all types of mammalian cells. They are characterized by a double-layered lipid membrane structure. They serve as carriers for a plethora of signal molecules, including DNA, RNA, proteins, and lipids.

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Regeneration across tissues and organs exhibits significant variation throughout the body and undergoes a progressive decline with age. To decode the relationships between aging and regenerative capacity, we conducted a comprehensive single-cell transcriptome analysis of regeneration in eight tissues from young and aged mice. We employed diverse analytical models to study tissue regeneration and unveiled the intricate cellular and molecular mechanisms underlying the attenuated regenerative processes observed in aged tissues.

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Objectives: The purpose of this retrospective study was to summarize our experience in performing robot-assisted thoracoscopic surgery (RATS) for mediastinal tumours in children to investigate its safety and feasibility.

Methods: This retrospective study involved 149 patients with mediastinal tumours who were hospitalized in the Department of Thoracic Surgery of Beijing Children's Hospital, Capital Medical University, and underwent RATS for tumour resection from March 2021 to November 2022. Information on patient age, weight, tumour size, surgical incision selection, operative time, intraoperative bleeding, intraoperative complications, length of hospital stay, rate of conversion to thoracotomy and follow-up conditions were summarized.

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Background: Leucine-rich repeat-containing protein-25 (LRRC25) can degrade the ISG15 gene in virus-infected cells and prevent overactivation of the type Ⅰ IFN pathway. However, the role of LRRC25 in bacterial infection is still unclear. In this pursuit, the present study aimed to explore the regulatory role and mechanism of LRRC25 in microglia infected with in a mouse model.

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Altered Krüppel-like factor 9 (KLF9) expression can regulate the progression of several cancers, including renal cell carcinoma (RCC). This study was conducted to investigate the role of KLF9 in the proliferation, invasion, and migration of RCC cells via regulation of stromal cell-derived factor-1 (SDF-1)/CXC chemokine receptor 4 (CXCR4). The expression patterns of KLF9, SDF-1, and CXCR4 in the experimental cell lines were determined by real-time quantitative polymerase chain reaction and Western blotting.

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The aim of the study was to analyze population-based prostate cancer (PCa) screening and the incidence of PCa among males ≥50 years of age residing in the Luqiao district of Taizhou, China. From October to December 2020, male residents ≥50 years of age were screened for serum total prostate-specific antigen (total-PSA). If t-PSA re-test levels persisted above 4 μg/L, subjects underwent further noninvasive examinations, including digital rectal examination or multiparameter magnetic resonance imaging (mpMRI) of the prostate.

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Background: Communicating bronchopulmonary foregut malformation is a rare anomaly characterized by a patent congenital communication between the esophagus or stomach and an isolated portion of the respiratory system. An esophagogram is taken as the gold standard for diagnosis. Compared with esophagography, computed tomography (CT) is more widely used and easily obtained, but CT findings have been described as nonspecific.

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A community-based prostate cancer screening program was conducted to assess the morbidity and associated factors for prostate cancer among the subpopulation of men aged ≥50 years in Taizhou, China. Taizhou Integrated Prostate Screening (TIPS) is a large, observational, population-based study of prostate cancer screening data based on serum prostate-specific antigen (PSA) concentrations. A pilot census of all male residents aged 50 years or older was conducted in Luqiao District, one of the field sites of the TIPS cohort in the city of Taizhou, Zhejiang.

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Background: Pain is one of the most common concomitant symptoms among cancer patients. Pharmacologic agents are regarded as a cornerstone of cancer pain management. 'Dose titration' with short-acting morphine is widely accepted.

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The wide range existence of M. aeruginosa FACHB 905 strains in the aquatic environment becomes a great threat for the health of humans and animals; it also poses a great obstacle in the ecological ecosystem. Therefore, an effective, efficient, and environmentally friendly method of treatment is needed.

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Background And Objective: To automatically identify and locate various types and states of the ureteral orifice (UO) in real endoscopy scenarios, we developed and verified a real-time computer-aided UO detection and tracking system using an improved real-time deep convolutional neural network and a robust tracking algorithm.

Methods: The single-shot multibox detector (SSD) was refined to perform the detection task. We trained both the SSD and Refined-SSD using 447 resectoscopy images with UO and tested them on 818 ureteroscopy images.

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Importance: Pulmonary inflammatory myofibroblastic tumors (PIMTs) are primary lung tumors in children. Misdiagnosis easily occurs because of the nonspecific clinical manifestations, laboratory examination results, and imaging findings in affected patients.

Objective: To summarize the clinical characteristics, diagnosis, and prognosis of children with PIMTs.

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In urology endoscopic procedures, the Ureteral Orifice (UO) finding is crucial but may be challenging for inexperienced doctors. Generally, it is difficult to identify UOs intraoperatively due to the presence of a large median lobe, obstructing tumor, previous surgery, etc. To automatically identify various types of UOs in the video, we propose a real-time deep learning system in UO identification and localization in urinary endoscopy videos, and it can be applied to different types of urinary endoscopes.

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Based on the multi-functional magnetic sludge-derived biochar (MSBC), an innovative integrated process-coupling accumulation by adsorbing, degradation by microwave (MW)-induced catalytic oxidation in the presence of HO and the regeneration of adsorbent simultaneously, was proposed. In this study, bisphenol S (4,4'-sulfonyldiphenol) was chosen as the pollutant model, its behaviors and related mechanism of BPS and MSBC in MW + HO system were investigated. The BPS effective degradation on MSBC was proved by decoupling the adsorption and degradation with solvent extraction.

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A retrospective study was carried out to determine the feasibility and safety of an extracorporeal-assisted intracorporeal sliding knot-tying technique in minimally invasive surgery in children. From June 2009 to December 2017, a total of 333 cases of pediatric minimally invasive surgery were performed using the extracorporeal-assisted intracorporeal sliding knot-tying technique. Polyester, polyglactin, and polydioxanone sutures were used for suturing and knotting.

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Objective: This study was performed to investigate the age at onset, clinical manifestations, pathological types and features, treatment, and prognosis of pleuropulmonary blastoma (PPB) in children in an attempt to reduce the misdiagnosis rate and achieve early detection and timely intervention.

Methods: We retrospectively studied the clinical data of 41 pediatric patients with PPB who were treated in our center from March 2002 to November 2018. The data comprised the age at onset, clinical manifestations, characteristics of familial diseases, pathological types, surgical procedures, and prognosis.

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Squamous cancer (SqCC) of the lung has a poor prognosis. With the advent of immunotherapy, prognosis has tended to improve; however, pseudoprogression poses a challenge to the management of immunotherapy. Herein, we discuss the case of a 47-year-old heavy smoker with advanced SqCC.

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Objective: To investigate the safety and effectiveness of radical retropubic prostatectomy (RRP) with adjuvant androgen deprivation or external radiotherapy in the treatment of prostate cancer (PCa) with pelvic lymph node metastasis (PLNM).

Methods: Twenty PCa patients underwent bilateral pedal lymphangiography (PLG) preoperatively, and 11 of them received lymph node aspiration for examination of the mRNA expressions of prostate-specific antigen (PSA) and prostate-specific membrane antigen (PSMA) in the lymph fluid by real-time RT-PCR. All the patients were treated by RRP with extended dissection of pelvic lymph nodes, and 3 of them by external radiotherapy in addition after recovery from urinary incontinence because of positive surgical margins, followed by adjuvant androgen deprivation therapy.

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Background: To identify the value of unilateral pedal lymphangiography (LPG) plus computed tomography angiography (CTA) in accurate depiction of persistent idiopathic chyluria undetectable by ordinary contrast CT.

Methods: Eighteen patients 44-63 years of age with persistent idiopathic chyluria who failed conservative management were included. Ordinary CT had not revealed a chyle leak.

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ΔNp63αplays key roles in cell survival and proliferation. So its expression is always tightly controlled in cells. We previously reported that DNA damage down-regulates transcription of ΔNp63αin FaDu and HaCat cells, which contributes to cell apoptosis.

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Objective: To identify the value of lymphography in the location and treatment decision of chyle leakage.

Methods: The clinic data of 177 patients suffered from chyle leakage admitted in 6 medical centers in Shanghai from February 1998 to December 2014 was analyzed retrospectively. There were 94 male and 83 female patients aging from 9 to 84 years with a mean of 49 years, including 128 cases of chyluria, 34 cases of primary chylothorax and 15 cases of other chyle leakage.

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TAp63γ is a homologue of tumor suppressor p53 and functions as a transcriptional factor playing key roles in cell cycle and cell apoptosis. In the present work, we find that JNK1 can physically interact with N-terminal transactivation domain (TAD) of TAp63. Overexpression of JNK1 inhibits TAp63γ-mediated transcription, while knockdown or inhibition of endogenous JNK1 increases transactivity of TAp63γ.

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Crossed fused renal ectopia combined with chyluria is extremely rare. Here we report the case of a patient who was admitted to our institution since milky urine and was finally found to have an L-shaped fused kidney and renal pelvis fistula. The patient was cured by renal pelvic instillation sclerotherapy.

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Objectives: To evaluate the efficacy and safety of pedal lymphography (PLG) in the localization diagnosis of chyluria.

Methods: Cystoscopy was performed in 153 patients and PLG in 121 cases. Unilateral or staged bilateral ligation and stripping of renal lymphatic vessel were performed according to the results of cystoscopy and/or PLG.

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