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Yu K, Bu F, Jian T, Liu Z, Hu R, Chen S, Lu J. Urinary incontinence rehabilitation of after radical prostatectomy: a systematic review and network meta-analysis. Front Oncol 2024; 13:1307434. [PMID: 38584666 PMCID: PMC10996052 DOI: 10.3389/fonc.2023.1307434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/27/2023] [Indexed: 04/09/2024] Open
Abstract
Purpose The aim of this study is to provide treatment for patients with urinary incontinence at different periods after radical prostatectomy. Methods The PubMed, Embase, Cochrane, and Web of Science were searched for all literature on the effectiveness on urinary control after radical prostate cancer between the date of database creation and 15 November 2023 and performed a quality assessment. A network meta-analysis was performed using RevMan 5.3 and Stata 17.0 software and evaluated using the surface under the cumulative ranking curve. Results The results of the network meta-analysis showed that pelvic floor muscle therapy including biofeedback with professional therapist-guided treatment demonstrated better results at 1 month to 6 months; electrical stimulation, biofeedback, and professional therapist guidance may be more effective at 3 months of treatment; professional therapist-guided recovery may be less effective at 6 months of treatment; and combined therapy demonstrated better results at 1 year of treatment. During the course of treatment, biofeedback with professional therapist-guided treatment may have significant therapeutic effects in the short term after surgery, but, in the long term, the combination of multiple treatments (pelvic floor muscle training+ routine care + biofeedback + professional therapist-guided treatment + electrical nerve stimulation therapy) may address cases of urinary incontinence that remain unrecovered long after surgery. Conclusion In general, all treatment methods improve the different stages of functional recovery of the pelvic floor muscles. However, in the long term, there are no significant differences between the treatments. Given the cost-effectiveness, pelvic floor muscle training + routine care + biofeedback + professional therapist-guided treatment + electrical nerve stimulation therapy within 3 months and pelvic floor muscle + routine care after 3 months may be a more economical option to treat urinary incontinence. Systematic review registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=331797, identifier CRD42022331797.
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Affiliation(s)
- Kai Yu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Fan Bu
- Department of Plastic and Aesthetic Surgery, The First Affiliated Hospital of Jilin University, Changchun, China
| | - Tengteng Jian
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Zejun Liu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Rui Hu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Sunmeng Chen
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Ji Lu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
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Jian T, Yang M, Wu T, Ji X, Xia S, Sun F. Diagnostic value of dynamic contrast enhancement combined with conventional MRI in differentiating benign and malignant lacrimal gland epithelial tumours. Clin Radiol 2024; 79:e345-e352. [PMID: 37953093 DOI: 10.1016/j.crad.2023.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023]
Abstract
AIM To establish the diagnostic value of the quantitative parameters of dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) combined with conventional MRI in differentiating of benign and malignant lacrimal gland epithelial tumours. MATERIALS AND METHODS A retrospective analysis of primary lacrimal gland epithelial tumours confirmed by histopathology was conducted. Conventional MRI features and DCE-MRI quantitative parameters were collected and subjected to analysis. The diagnostic value was evaluated using receiver operating characteristic (ROC) curve analysis. RESULTS A total of 53 patients were enrolled of which 29 had malignant, whereas 24 had benign tumours. Conventional MRI revealed statistically significant differences between benign and malignant tumours regarding maximum tumour diameter, posterior margin characteristic, bone destruction, and erosion. The Ktrans and Kep values obtained by DCE-MRI were higher in malignant than in benign tumours, with a statistically significant (p<0.001 and p=0.022). A type I time-signal intensity (TIC) curve was more frequent in benign tumours, whereas a type II TIC curve was prevalent in malignant tumours (p=0.001). ROC analysis showed that Ktrans had the best diagnostic value of the DCE-MRI parameters (area under the ROC curve [AUC] of 0.822, 75.9% sensitivity, and 83.3% specificity, p<0.001). The combination of conventional MRI and DCE-MRI factors had the best diagnostic value and balanced sensitivity and specificity (AUC of 0.948, 93.1% sensitivity, and 91.7% specificity, p<0.001). CONCLUSIONS The present findings indicate that the combination of quantitative parameters of DCE-MRI and image characteristics of conventional MRI have a high diagnostic value for the diagnosis of benign and malignant lacrimal gland epithelial tumours.
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Affiliation(s)
- T Jian
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - M Yang
- Department of Ophthalmology, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Taizhou, China
| | - T Wu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - X Ji
- Department of Radiology, Tianjin First Central Hospital, Tianjin, China
| | - S Xia
- Department of Radiology, Tianjin First Central Hospital, Tianjin, China
| | - F Sun
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
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Zheng C, Wang J, Jian T, Lu J, Wang C, He L. Comparation of intraureteral stent and conventional stent at different stages: a systematic review with meta-analysis. Minerva Urol Nephrol 2023; 75:696-710. [PMID: 37350583 DOI: 10.23736/s2724-6051.23.05233-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
INTRODUCTION Stent related symptom (SRS) is the most common adverse effect of ureteral stenting. In recent years, many efforts have been made to develope modified ureteral stents to ameliorate SRS. It has been reported that intraureteral stents have the potential to improve the tail end adverse effect of the bladder and alleviate SRS. However, there still lack of evidence for the efficacy and the safety of clinically applying intraureteral stents. The aim of this work is to investigate the efficacy and safety of intraureteral stents. EVIDENCE ACQUISITION A systematic review was performed by using the PubMed, Web of Science, Medline, Embase, and Cochrane library. The studies published before February 2023 were included. The study selection was following the guideline from Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). The searching strategy was: "Pigtail suture stent" OR "Intra-ureteric stent" OR "Suture Stent" OR "Intraureteral stent" AND "Ureteroscopy" OR "Urinary calculi" OR "Stent-related symptoms" OR "Lower urinary tract symptoms". The data from randomized clinical trials which meet the selection criteria were extracted. Revman 5.4 was employed to proceed the meta-analysis. EVIDENCE SYNTHESIS A total of six randomized clinical trials of intraureteral stents were included in this systematic review and meta-analysis. According to the different investigation time, the results could be divided into four stages: early-stage, middle-stage, late-stage, and long-term evaluation. Urinary symptoms, pain score, and general health were significantly improved in intraureteral stents group at middle stage. For late-stage, intraureteral stent achieved better outcomes in urinary symptoms index, VAS score, quality of life, general health, and pain score. However, for early-stage and long-term evaluation, there was no significant difference between two groups. CONCLUSIONS This systematic review and meta-analysis reveal that regardless of the stage of treatment, the efficacy and safety of intraureteral stent are no worse than that of conventional stent. During 7-14 days postoperation, which is the most commonly time for clinically using ureteral stent, most of the outcomes of intraureteral stent are better than those of conventional stent. Hence, it is confirmed that intraureteral stent is worth for more clinical study and application.
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Affiliation(s)
- Chao Zheng
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Jixue Wang
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Tengteng Jian
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Ji Lu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Chunxi Wang
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Liang He
- Department of Urology, The First Hospital of Jilin University, Changchun, China -
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Jian T, Zhan Y, Yu Y, Yu K, Hu R, Wang J, Lu J. Combination therapy for high-volume versus low-volume metastatic hormone-sensitive prostate cancer: A systematic review and network meta-analysis. Front Pharmacol 2023; 14:1148021. [PMID: 37153773 PMCID: PMC10157498 DOI: 10.3389/fphar.2023.1148021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/11/2023] [Indexed: 05/10/2023] Open
Abstract
Purpose: To conduct a systematic review and network meta-analysis (NMA) to compare the efficacy of currently available combination therapies in patients with metastatic hormone-sensitive prostate cancer (mHSPC). Methods: Qualified publications were searched in the PubMed, Embase, and Cochrane CENTRAL databases. Overall survival (OS) and radiographic progression-free survival (rPFS) were indirectly compared and assessed using NMA and the surface under the cumulative ranking curve, respectively. Adverse events (AEs) were also compared. Results: Eighteen publications from 12 trials were analyzed in the NMA. In the overall population, triplet therapy was ranked first for OS (hazard ratio [HR]: 0.57, 95% credible interval [CrI]: 0.48-0.67) and rPFS (HR: 0.33, 95% CrI:0.26-0.41) compared with androgen deprivation therapy (ADT) with or without standard non-steroidal antiandrogen. In high-volume mHSPC, triplet therapy was also ranked first in OS (HR, 0.57; 95% CrI:0.44-0.75) and rPFS(HR, 0.29; 95% CrI: 0.23-0.37). Specifically, abiraterone triplet therapy was ranked first in OS (HR, 0.52; 95% CrI:0.38-0.72) and rPFS (HR, 0.28; 95% CrI:0.21-0.38) among all therapies. ADT plus rezvilutamide was ranked first among doublet therapies (OS: HR, 0.58; 95% CrI:0.44-0.77; rPFS: HR, 0.44; 95% CrI:0.33-0.58). In low-volume mHSPC, doublet and triplet therapies were ranked first in OS (HR:0.68, 95% CrI:0.58-0.80) and rPFS (HR:0.37, 95% CrI:0.25-0.55), respectively. ADT plus apalutamide was ranked first in OS among all therapies (HR:0.53, 95% CrI:0.35-0.79), whereas enzalutamide triplet therapy was ranked first in rPFS (HR:0.27, 95% CrI:0.15-0.51). ADT plus rezvilutamide showed a relatively lower incidence of AE among all therapies (OR:1.00, 95% CrI:0.31-3.15), and a lower risk of specific AEs among doublet therapies, particularly regarding seizure (OR, 0.29; 95% CrI:0.01-8.18) and fatigue (OR, 0.96; 95% CrI:0.63-1.46). Docetaxel-based doublet or triplet therapies significantly increased the risk of any AEs or grade ≥3 AEs. Conclusion: Triplet therapy was the best treatment option for the overall population. In high-volume mHSPC, triplet therapy and ADT plus rezvilutamide had the greatest potential to benefit patients. Patients with low-volume mHSPC were most likely to benefit from ADT plus androgen receptor-targeted agents. Triplet therapy was associated with a higher risk of AEs than the other therapies. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022375347, identifier PROSPERO:CRD42022375347.
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Affiliation(s)
- Tengteng Jian
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Yang Zhan
- School of Life Sciences, Jilin University, Changchun, China
| | - Ying Yu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Kai Yu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Rui Hu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Jixue Wang
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Ji Lu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Ji Lu,
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Jian T, Zhan Y, Hu K, He L, Chen S, Hu R, Lu J. Systemic triplet therapy for metastatic hormone-sensitive prostate cancer: A systematic review and network meta-analysis. Front Pharmacol 2022; 13:955925. [PMID: 36278154 PMCID: PMC9582339 DOI: 10.3389/fphar.2022.955925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 09/21/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose: To perform a systematic review and network meta-analysis to compare the efficacy and safety of currently available docetaxel-based systemic triplet therapies for metastatic hormone-sensitive prostate cancer (mHSPC). Methods: We searched for eligible publications in PubMed, Embase, and Cochrane CENTRAL. Improvements in overall survival (OS) and radiographic progression-free time (rPFS) were compared indirectly using network meta-analysis and evaluated using the surface under the cumulative ranking curve (SUCRA). Other secondary endpoints, such as time to castration-resistant prostate cancer and/or adverse events (AEs), were also compared and evaluated. Results: Five trials were selected and analyzed using a network meta-analysis. Compared to androgen deprivation therapy (ADT) plus docetaxel, darolutamide (hazard ratio [HR]: 0.68, 95% credible interval [CrI]: 0.57–0.80) and abiraterone (HR: 0.75, 95% CrI: 0.59–0.95) triplet therapy had significantly longer OS, and darolutamide triplet therapy was the first treatment ranked. Abiraterone (HR: 0.49, 95% CrI: 0.39–0.61) and enzalutamide (HR: 0.52, 95% CrI: 0.30–0.89) had significantly better rPFS than ADT plus docetaxel; however, all three therapies, including abiraterone, apalutamide, and enzalutamide, were the best options with a similar SUCRA. At most secondary endpoints, systemic triplet therapy was superior to ADT plus docetaxel. The risk of any AEs in darolutamide or abiraterone triplet therapy was comparable with ADT plus docetaxel (odds ratio [OR]: 2.53, 95% credible interval [CrI]: 0.68–12.63; OR: 1.07, 95% CrI: 0.03–36.25). Abiraterone triplet therapy had an increased risk of grade≥3 AEs (OR: 1.56, 95% CrI: 1.15–2.11). Conclusion: Systemic triplet therapy was more effective than ADT plus docetaxel for mHSPC. Of the triplet therapy regimens, darolutamide ranked first in terms of improved OS. Abiraterone and enzalutamide triplet ranked first in terms of rFPS, however, it did not confer a statistically difference among all triplet regimens. The overall risk of AEs was comparable. More studies are required for current and potential combinations of systemic triplet therapy.
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Affiliation(s)
- Tengteng Jian
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Yang Zhan
- School of Life Sciences, Jilin University, Changchun, China
| | - Kebang Hu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Liang He
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Sunmeng Chen
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Rui Hu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Ji Lu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Ji Lu,
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Chen S, Jian T, Chi C, Liang Y, Liang X, Yu Y, Jiang F, Lu J. Machine Learning-Based Models Enhance the Prediction of Prostate Cancer. Front Oncol 2022; 12:941349. [PMID: 35875103 PMCID: PMC9299367 DOI: 10.3389/fonc.2022.941349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose PSA is currently the most commonly used screening indicator for prostate cancer. However, it has limited specificity for the diagnosis of prostate cancer. We aim to construct machine learning-based models and enhance the prediction of prostate cancer. Methods The data of 551 patients who underwent prostate biopsy were retrospectively retrieved and divided into training and test datasets in a 3:1 ratio. We constructed five PCa prediction models with four supervised machine learning algorithms, including tPSA univariate logistic regression (LR), multivariate LR, decision tree (DT), random forest (RF), and support vector machine (SVM). The five prediction models were compared based on model performance metrics, such as the area under the receiver operating characteristic curve (AUC), accuracy, sensitivity, specificity, calibration curve, and clinical decision curve analysis (DCA). Results All five models had good calibration in the training dataset. In the training dataset, the RF, DT, and multivariate LR models showed better discrimination, with AUCs of 1.0, 0.922 and 0.91, respectively, than the tPSA univariate LR and SVM models. In the test dataset, the multivariate LR model exhibited the best discrimination (AUC=0.918). The multivariate LR model and SVM model had better extrapolation and generalizability, with little change in performance between the training and test datasets. Compared with the DCA curves of the tPSA LR model, the other four models exhibited better net clinical benefits. Conclusion The results of the current retrospective study suggest that machine learning techniques can predict prostate cancer with significantly better AUC, accuracy, and net clinical benefits.
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Affiliation(s)
- Sunmeng Chen
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Tengteng Jian
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Changliang Chi
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Yi Liang
- School of Business and Management, Jilin University, Changchun, China
| | - Xiao Liang
- School of Business and Management, Jilin University, Changchun, China
| | - Ying Yu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Fengming Jiang
- Department of Urology, The First Hospital of Jilin University, Changchun, China
| | - Ji Lu
- Department of Urology, The First Hospital of Jilin University, Changchun, China
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Chen L, Wu L, Yu J, Kuo CT, Jian T, Wu IC, Rong Y, Chiu DT. Highly photostable wide-dynamic-range pH sensitive semiconducting polymer dots enabled by dendronizing the near-IR emitters. Chem Sci 2017; 8:7236-7245. [PMID: 29081956 PMCID: PMC5633788 DOI: 10.1039/c7sc03448b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 09/02/2017] [Indexed: 12/15/2022] Open
Abstract
One constraint of semiconducting polymer dots (Pdots), especially those with near-IR emission, is their low effective emitter ratio (∼1.5 mole percent), which limits their pH sensing performance. The other critical issue of existing Pdot-based pH sensors is their poor photostability. To address these issues, we developed a series of Pdots by dendronizing the squaraine-based pH responsive near-IR emitter, which is covalently incorporated into the polyfluorene (PFO) backbone. The fluorescence self-quenching of the NIR squaraine emitter was effectively suppressed at a high emitter concentration of 5 mole percent. Through controlling the individually incomplete energy transfer from the amorphous PFO donor to the blue β-phase PFO and NIR squaraine emitter, we obtained a ratiometric pH sensor with simultaneously improved pH sensitivity, brightness, and photostability. The Pdots showed a fast and reversible pH response over the whole biological pH range of 4.7 to 8.5. Intracellular pH mapping was successfully demonstrated using this ultra-bright and photostable Pdot-based pH indicator.
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Affiliation(s)
- L Chen
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - L Wu
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - J Yu
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - C-T Kuo
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - T Jian
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - I-C Wu
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - Y Rong
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
| | - D T Chiu
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , USA .
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Rizos AK, Jian T, Ngai KL. Determination of the Coupling Parameter of Local Segmental Motion in Poly(isobutylene) by Photon Correlation Spectroscopy. Macromolecules 2002. [DOI: 10.1021/ma00106a015] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vogt S, Jian T, Anastasiadis SH, Fytas G, Fischer EW. Diffusive relaxation mode in poly(styrene-b-methylphenylsiloxane) copolymer melts above and below the order-disorder transition. Macromolecules 2002. [DOI: 10.1021/ma00065a019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jian T, Anastasiadis SH, Semenov AN, Fytas G, Adachi K, Kotaka T. Dynamics of Composition Fluctuations in Diblock Copolymer Solutions Far from and Near to the Ordering Transition. Macromolecules 2002. [DOI: 10.1021/ma00095a017] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jian T, Anastasiadis SH, Semenov AN, Fytas G, Fleischer G, Vilesov AD. Interdiffusion and Composition Polydispersity in Diblock Copolymers above the Ordering Transition. Macromolecules 2002. [DOI: 10.1021/ma00111a043] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hu WY, Fukuda N, Satoh C, Jian T, Kubo A, Nakayama M, Kishioka H, Kanmatsuse K. Phenotypic modulation by fibronectin enhances the angiotensin II-generating system in cultured vascular smooth muscle cells. Arterioscler Thromb Vasc Biol 2000; 20:1500-5. [PMID: 10845864 DOI: 10.1161/01.atv.20.6.1500] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We previously demonstrated that homogeneous cultures of vascular smooth muscle cells (VSMCs) from spontaneously hypertensive rats produce angiotensin II (Ang II) in response to increases in the levels of angiotensinogen, cathepsin D, and angiotensin-converting enzyme (ACE). The change of VSMCs from the contractile to the synthetic phenotype increased the amount of synthetic organelles, resulting in the production of proteases and growth factors. To evaluate the contribution of the synthetic phenotype to the generation of Ang II, we examined the effect of fibronectin (FN), which reportedly induces the synthetic phenotype, on the Ang II-generating system in VSMCs. Cultured VSMCs from Wistar-Kyoto rats were incubated with an active fragment of FN, Arg-Gly-Asp-Ser, for 24, 48, or 72 hours after synchronization of the cell cycle with 0. 2% calf serum for 48 hours. Immunofluorescence and protein levels of alpha-smooth muscle (SM) actin and expression of SM22alpha mRNA, apparent in the contractile phenotype, were suppressed by FN, whereas expression of matrix Gla mRNA and osteopontin mRNA and protein, apparent in the synthetic phenotype, was increased. FN (1 to 1000 microg/mL) dose-dependently increased DNA synthesis in the VSMCs, which was inhibited by the Ang II type 1 receptor antagonist CV-11974. Ang II-like immunoreactivity as determined by radioimmunoassay was significantly increased in conditioned medium from the VSMCs. In addition, mRNA for the Ang II-generating proteases cathepsin D and ACE was increased by FN. Expression of transforming growth factor-beta1, platelet-derived growth factor A-chain, and basic fibroblast growth factor mRNAs was also increased by FN. These results indicate that the changes accompanying the alteration to the synthetic phenotype in homogeneous cultures of VSMCs increase expression of proteases such as cathepsin D and ACE, which then produce Ang II, and that these changes increase expression of growth factors that then induce growth of VSMCs.
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Affiliation(s)
- W Y Hu
- Second Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
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Wei H, Young D, Lingjiang L, Shuiyuan X, Jian T, Hanshu S, Zhunghong Y, Xiouying T, Xudong W. Psychoactive substance use in three sites in China: gender differences and related factors. Addiction 1995; 90:1503-15. [PMID: 8528036 DOI: 10.1046/j.1360-0443.1995.901115039.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
One year prevalence rates for psychoactive substance use are reported based on a community survey in Hunan, Helongjiang and Jiangsu. Data were gathered on more than 14,000 respondents (15-65 years old). The drinking rates ranged from 58.3% to 82.6% for men and from 16.3% to 31.4% for women. Smoking rates ranged from 64.9% to 68.1% for men and from 0.1% to 20.5% for women. Most drinkers were light users and most smokers were heavy users. Illicit drug use was found in the Hunan site. For both frequency and quantity of psychoactive substance use, women are lighter consumers than males (except for the use of minor tranquillizers and analgesics). Psychosocial factors related to drinking and smoking are also investigated in this study.
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Affiliation(s)
- H Wei
- Mental Health Institute, Hunan Medical University, China
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Jian T, Anastasiadis SH, Rizos AK, Fytas G, Akcasu AZ. Interdiffusion in dilute polymer mixtures. A subtle concentration effect. J Chem Phys 1994. [DOI: 10.1063/1.467568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jian T, Semenov AN, Anastasiadis SH, Fytas G, Yeh F, Chu B, Vogt S, Wang F, Roovers JEL. Composition fluctuation induced depolarized Rayleigh scattering from diblock copolymer melts. J Chem Phys 1994. [DOI: 10.1063/1.466419] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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