Publications by authors named "Nianzhao Zhang"

Article Synopsis
  • Clear cell renal cell carcinoma (ccRCC) shows altered metabolism, with FUCA1 expression downregulated, correlating with poorer patient outcomes.
  • Enhancing FUCA1 levels reduces ccRCC cell invasion and migration, indicating its potential protective role, influenced by the transcription factor CTCF.
  • FUCA1 impacts the autophagy process in ccRCC by affecting autophagosome-lysosome fusion, while FUCA2 is closely related and serves as a prognostic marker.
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Article Synopsis
  • This study investigates how absolute neutrophil count (ANC) and absolute monocyte count (AMC) can help distinguish between renal cell carcinoma (RCC) and renal angiomyolipoma (RAML) and their implications on RCC patient prognosis.
  • The research analyzed data from 1120 patients, finding significantly higher ANC and AMC levels in RCC patients compared to those with RAML, and noted associations with factors like smoking history and tumor characteristics.
  • Additionally, high ANC and AMC levels were linked to poorer overall survival (OS) and progression-free survival (PFS) in RCC patients, with ANC being identified as a potential independent prognostic factor.
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The purpose of the study was to introduce a novel surgical approach of combining laparoscopic pyelotomy with ultrasonic lithotripsy via a nephroscope for the treatment of complex renal stones. Between May 2021 and April 2023, 32 patients underwent laparoscopic pyelotomy combined with ultrasonic lithotripsy via a nephroscope and their perioperative variables were retrospectively collected and outcomes were assessed. Dissection and incision of the anterior renal pelvis wall was performed via a laparoscope.

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Purpose: Immune checkpoint therapy (ICT) provides a new idea for the treatment of advanced clear cell renal cell carcinoma (ccRCC), which can bring significant benefits to patients. However, the clinical application of ICT is limited because of the lack of predictive biomarkers to select potential responders. This study aims to propose a new biomarker to predict the response to Nivolumab in patients with ccRCC.

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The vascular and morphological features of tumors are important predictors of the nature, grade, and stage of various cancers. However, this association has not been tested in bladder cancer. The aim of our study was to investigate the correlation between the morphological characteristics of tumor vessels and the nature, stage and grade of bladder cancer.

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Purpose: At present, the prediction of bladder tumor nature during cystoscopy is partially dependent on the clinician's own experience. Subjective factors may lead to excessive biopsy or delayed treatment. The purpose of our study is to establish a reliable model for predicting the nature of bladder tumors using narrow band imaging.

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Receptor tyrosine kinase (RTK) inhibitors, such as sunitinib and sorafenib, remain the first-line drugs for the treatment of mRCC. Acquired drug resistance and metastasis are the main causes of treatment failure. However, in the case of metastasis Renal Cell Cancer (mRCC), which showed a good response to sunitinib, we found that long-term treatment with sunitinib could promote lysosome biosynthesis and exocytosis, thereby triggering the metastasis of RCC.

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Mesenchymal stem cells (MSCs) are capable of impacting tumor progression but its role in tumor stroma remodeling still remains unclear. This present study was aimed to evaluate the potential function of MSCs on tumor stroma remodeling using rabbits VX2 bladder tumor model. The VX2 bladder tumor models were established by injecting mixed cell suspensions (10 of VX2 tumor cells and 0/10/10 of autologous MSCs in group A, B, C, respectively) into the bladder mucosa using thirty male New Zealand white rabbits.

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Based on perlolyrine (1), a natural alkaloid with weak PDE5 potency from the traditional Chinese aphrodisiac plant Tribulus terrestris L., a series α-substituted tetrahydro-β-carboline (THβC) derivatives were synthesized via TBF4-mediated oxidative C-H functionalization of N-aryl THβCs with diverse potassium trifluoroborates. Following Winterfeldt oxidation afforded the corresponding furyl/thienyl pyrroloquinolones, of which 5-ethylthiophene/ethylfuran derivatives 20a-b were identified as the most potent and selective PDE5 inhibitors.

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Reticulocalbin 1 (RCN1), an endoplasmic reticulum (ER)-resident Ca -binding protein, is dysregulated in cancers, but its pathophysiological roles are largely unclear. Here, we demonstrate that RCN1 is overexpressed in clinical prostate cancer (PCa) samples, associated with cyclin B, not cyclin D1 expression, compared to that of benign tissues in a Chinese Han population. Downregulation of endogenous RCN1 significantly suppresses PCa cell viability and arrests the cell cycles of DU145 and LNCaP cells at the S and G2/M phases, respectively.

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Anterior gradient 2 (AGR2), an endoplasmic reticulum (ER)-resident protein-disulfide isomerase (PDI), is associated with cancer development and malignant progression. Here, we show that high level of AGR2 promotes the aggressive phenotype of prostate cancer (PCa) mouse models developed by either patient-derived xenografts or surgical intra-prostate implantation of PCa cells, associated with enrichment of the blood vessel network in tumor tissues. Angiogenesis markers VEGFR2 and CD34, accompanied with the invasive marker Vimentin, were predominantly stained in metastatic liver tissues.

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Aims And Objectives: To assess the clinical effect of the multifunctional suprapubic catheter (MSC) on occurrence of cystospasm, catheter occlusion, the catheter-related urinary tract infection and remission of overactivity bladder, by comparing with the conventional suprapubic catheter (CSC) in patients with permanent suprapubic cystostomy.

Background: The conventional suprapubic catheter usually presents with high incidence of catheter-associated complications.

Design: A prospective randomised clinical trial in a single centre.

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Objective: To establish the detrusor overactivity (DO) model induced by visceral hypersensitivity (VH) and investigate the relationship between mast cell (MC) infiltration and DO.

Materials And Methods: Sixty rats are divided into 4 groups randomly: Group 1:Baseline group; Group 2: DO group; Group 3: CON group; Group 4: VH group. The colorectal distension (CRD) and abdominal withdral reflex (AWR) scores are performed to evaluate VH.

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Objective: To improve the model for establishment and evaluation of detrusor overactivity in female Wistar rats.

Materials And Methods: We ligated the perineal urethra of female Wistar rats and then performed filling cystometry. The probability of detrusor overactivity, bladder capacity, peak voiding pressure and histological changes were investigated.

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Urothelial carcinoma of the bladder is nearly three times more common in men than in women. Although it has been primarily attributed to differences in exposure to smoking and industrial chemicals, it is evident now that hormonal factors also play a role. One of the explanations for the differential biologic aggressiveness of urothelial carcinoma of the bladder between genders has focused on sex steroid hormones and their receptors.

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Objective: To evaluate the safety of solifenacin and tolterodine in the treatment of overactive bladder (OAB).

Methods: Studies on the solifenacin, tolterodine and OAB were searched and those fulfilling the inclusion criteria were selected. RevMan 5.

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Objective: To analyze the influence of intravesical Pirarubicin (THP) instillation on the prediction results of European Organization for Research and Treatment of Cancer (EORTC) risk tables and to discuss the efficacy of EORTC risk tables in clinical application.

Methods: We retrospectively reviewed the clinical data of 389 patients with non-muscle invasive bladder cancer after TURBT treated with intravesical pirarubicin instillation. According to the EORTC Scoring System, all the cases were divided into low risk group, intermediate risk group and high risk group.

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Background: Bladder leiomyoma is an uncommon type of bladder neoplasms. Most publications are reports of isolated cases. The influence of tumor size on patients' early symptoms was seldom analyzed.

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Objectives: To investigate the clinical characteristics of bladder urothelial tumors in male patients.

Patients And Methods: The clinical characteristics of 356 patients with newly diagnosed bladder urothelial tumors from July 2005 to January 2010 were analyzed. Characteristics of different age groups were compared.

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Objective: The aim of this study was to investigate the influence of age and menopause on the clinical characteristics of bladder urothelial tumors in female patients.

Methods: We retrospectively reviewed the clinical and pathological data of 215 consecutive female patients with bladder urothelial tumors who were treated at our department from January 2000 to July 2008. To investigate the relationship with age, the clinical characteristics of the patients were first classified into three groups: 50 years or younger, 51 to 69 years, and 70 years or older.

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Objectives: To evaluate the relationship between patient age and the characteristics of superficial transitional cell carcinoma.

Methods: The clinical and pathologic records of 576 patients were retrospectively reviewed. The patients were classified into three groups: those 40 years or younger, those 41 to 59 years old, and those 60 years or older.

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