Dujiangyan Medical Center

Dujiangyan, China

Dujiangyan Medical Center

Dujiangyan, China

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Yuan Z.,Chongqing Medical University | He C.,Dujiangyan Medical Center | Yan S.,Dujiangyan Medical Center | Yan S.,University of Sichuan | And 2 more authors.
World Journal of Urology | Year: 2015

Purpose: To assess the effectiveness of acupuncture in treating female adult with overactive bladder. Materials and methods: After we excluded other causes for storage symptoms, a total of 240 consecutive female patients with overactive bladder were enrolled and completed all aspects of this prospective randomized controlled trial, of which 118 cases were randomly assigned to receive a weekly acupuncture treatment (intervention group), while the other 122 cases were given a pharmacological treatment of oral tolterodine tartrate 2 mg twice daily (control group) for 4 weeks. Data on urgency, incontinence, micturition frequency, nocturia episodes and voided volume were collected and statistically analyzed before and after 4 weekly acupuncture treatments or 4 weeks’ pharmacological treatment using a 3-day micturition diary. Results: The two groups of female patients with overactive bladder were given treatment with weekly acupuncture (n = 118), oral tolterodine tartrate (n = 122) for 4 weeks respectively. At weeks 4, subjects in both intervention and control groups had significant decreases in number of urinary urgency episodes, incontinence episodes, daytime frequency, nocturia episodes and increase in volume voided per micturition without a significant difference in the changes of overactive bladder symptoms between the groups. There were no serious adverse events during the study. Conclusions: This randomized controlled trial demonstrates that acupuncture is safe with significant improvements in patient assessment of overactive bladder symptoms and may be considered a clinically alternative treatment for overactive bladder in female adult. © 2014, Springer-Verlag Berlin Heidelberg.

Chu S.-H.,Shanghai JiaoTong University | Zhou Z.-M.,Dujiangyan Medical Center | Karri S.,Harvard University | Li Z.-Q.,Wuhan University | Zhao J.-M.,Shanghai JiaoTong University
Cancer Gene Therapy | Year: 2014

Our previous study showed that solute carrier family 22 (organic cation transporter) member 18 (SLC22A18) downregulation via promoter methylation was associated with the development and progression of glioma, and the elevated expression of SLC22A18 was found to increase the sensitivity of glioma U251 cells to the anticancer drug 1,3-bis(2-chloroethyl)-1-nitrosourea. In this study, we investigated the possible upregulated expression of SLC22A18-induced enhancement of radiosensitivity of human glioma U251 cells in order to provide evidence in support of further clinical investigations. Stably overexpressing SLC22A18 human glioma U251 cells were generated to investigate the effect of SLC22A18 on the sensitivity of cells to irradiation in vitro using clonogenic survival assay. The apoptosis of U251 cells was examined with terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay. DNA damage and repair were measured using γH2AX foci. The effect of SLC22A18 on the in vivo tumor radiosensitivity was investigated in the orthotopic mice model. Upregulated expression of SLC22A18 enhanced the radiosensitivity of glioma U251 cells and also enhanced irradiation-induced apoptosis of U251 cells, but irradiation-induced apoptosis did not correlate with radiosensitizing effect of upregulated expression of SLC22A18. The repair of irradiation-induced double-strand-breaks was retarded in stably overexpressing SLC22A18 U251 cells. In the orthotopic mice model, the upregulated expression of SLC22A18 in U251 cells enhanced the effect of irradiation treatment and increased the survival time of mice. These results show that upregulated expression of SLC22A18 radiosensitizes human glioma U251 cells by suppressing DNA repair capacity. © 2014 Nature America, Inc. All rights reserved.

Chu S.-H.,Shanghai JiaoTong University | Zhou Z.-M.,Dujiangyan Medical Center | Feng D.-F.,Shanghai JiaoTong University | Ma Y.-B.,Shanghai JiaoTong University
Molecular Biology Reports | Year: 2014

Special AT-rich sequence-binding protein-1 (SATB1) has been reported to be over-expressed in many human tumors and knockdown of SATB1 can inhibit tumor growth. The present study was designed to determine the role of SATB1 in the growth of human glioma U251 cells using the plasmid-based SATB1 short hairpin RNA (shRNA) delivered by hydroxyapatite nanoparticles in vitro and in vivo. The in vitro growth, invasion and angiogenesis assays of human glioma U251 cells were done. U251 cells tumor blocks were transplanted into the nude mice. CaCl2-modified hydroxyapatite nanoparticles carrying shRNA-SATB1 plasmids were injected into the tumors. The apoptosis of the tumor U251 cells was examined with TUNEL assay and flow cytometer (FCM). The tumor growth and immunohistochemistry were measured. The expression level of SATB1 mRNA was investigated by RT-PCR. The expression levels of SATB1, Cyclin D1, MMP-2, VEGF, Bax and Caspase-9 protein were determined by western blot analysis. The results showed that hydroxyapatite nanoparticles-delivered shRNA-SATB1 could significantly inhibit the growth, invasion and angiogenesis of U251 cells in vitro and the growth of U251 cells in vivo. FCM results showed that Nano HAP-shRNA-SATB1-induced apoptosis (up to 67.8%). SATB1 expression was strongly down-regulated in the tumor U251 cells. Cyclin D1, MMP-2 and VEGF were also down-regulated in the tumor tissues that also displayed significant increased in Bax expression and Caspase-9 activity. These results show that Nano HAP-shRNA-SATB1 can inhibit the growth of human glioma U251 cells in vitro and in vivo, and hydroxyapatite nanoparticles can be used for the in vitro and in vivo delivery of plasmid-based shRNAs into U251 cells. © Springer Science+Business Media 2013.

Gao R.,Chongqing Medical University | Gao R.,Dujiangyan Medical Center | Zhou X.,Chongqing Medical University | Yang Y.,Chongqing Medical University | And 2 more authors.
Ultrasound in Medicine and Biology | Year: 2014

Using ultrasound-targeted microbubble destruction (UTMD), we transfected both wild-type p53 (wtp53) and Rb94 genes into retinoblastomas (RBs) of nude mice to investigate the inhibitory role of these two genes in RB development. The 40 tumor-bearing mice, which had been established by sub-retinal injection of an HXO-Rb44cell suspension, were randomly divided into five groups: blank control group (C); blank plasmid group (M); wtp53 plasmid group (p53); Rb94 plasmid group (Rb94); wtp53+Rb94 plasmid group (p53+Rb94). For preparation of the DNA-loaded microbubbles, a pre-determined amount of blank plasmid, pVIVO1-p53, pVIVO1-Rb94 or pVIVO1-p53-Rb94 was added and mixed with the microbubbles. Then, these DNA-loaded microbubbles were respectively transfected into the animal model by UTMD. Vascular endothelial growth factor level and microvessel density of the tumor were determined by immunohistochemical staining. Apoptosis of tissues was detected by terminal deoxynucleotidyl transferase dUTP nick end labeling staining. Expression of wtp53 and Rb94 at both the gene and protein levels was detected by RT-PCR (reverse transcription polymerase chain reaction) and Western blot, respectively. Transfection of both genes had greater inhibitory effects on RB development and resulted in lower levels of vascular endothelial growth factor, lower microvessel density and more obvious apoptosis than single-gene transfection (p<0.05). The results indicate that the transfection of both genes into the RB by UTMD more strongly inhibited RB growth than transfection of a single gene. © 2014 World Federation for Ultrasound in Medicine & Biology.

PubMed | Chengdu Nuoen Biotechnologies Inc., Chengdu University of Traditional Chinese Medicine and Dujiangyan Medical Center
Type: | Journal: Scientific reports | Year: 2015

MicroRNA (miRNA) studies are experiencing a transition from basic research applications to clinical applications. However, the lack of reliable and sensitive miRNA detection methods has become a bottleneck in the process. Here, we report an absolute quantification method based on the competitive PCR amplification of specific miRNAs and synthetic RNA spike-ins in a single reaction. RNA spike-ins are quantified as dynamic RNA copy number standards and are used to measure selected miRNAs free from the effects of intra-assay variables, including those from individual sample sources. Combined with the size differentiation power of capillary electrophoresis, the content of miRNAs was reproducibly measured, with verifiable detection limits of 10-46 copies over 5-log detection ranges. The direct measurements of miRNAs from 168 human serum samples and their considerable value as a diagnostic for bronchopneumonia and bronchiolitis demonstrate the potential of the assay in clinical applications.

Yuan Z.,Chongqing Medical University | Tang Z.,University of Sichuan | He C.,Dujiangyan Medical Center | Tang W.,Chongqing Medical University
Journal of Diabetes | Year: 2015

Herein we review and discuss epidemiological, clinical, and experimental studies on diabetic cystopathy, a common chronic complication of diabetes mellitus with a variety of lower urinary tract symptoms, providing directions for future research. A search of published epidemiological, clinical, or preclinical trial literature was performed using the key words "diabetes", "diabetic cystopathy", "diabetic bladder dysfunction", "diabetic lower urinary tract dysfunction", "diabetic detrusor instability". The classic symptoms of diabetic cystopathy are decreased bladder sensation, increased bladder capacity, and impaired bladder emptying with resultant increased post-void residual volume. However, recent clinical evidence indicates a presence of storage symptoms, such as overactive bladder symptoms. The pathophysiology of diabetic cystopathy is multifactorial, including disturbances of the detrusor, neuron, urothelium, and urethra. Hyperglycemia, oxidative stress, and polyuria play important roles in inducing voiding dysfunction in diabetic individuals. Treatment choice depends on clinical symptoms and urodynamic abnormalities. Urodynamic evaluation is the cornerstone of diagnosis and determines management strategies. Diabetes mellitus could cause a variety of lower urinary tract symptoms, leading to diabetic cystopathy with broadly varied estimates of the prevalence rates. The exact prevalence and pathogenesis of diabetic cystopathy remains to be further investigated and studied in multicenter, large-scaled, or randomized basic and clinical trials, and a validated and standardized workup needs to be made, improving diabetic cystopathy management in clinical practice. Further studies involving only female diabetics are recommended. © 2015 Ruijin Hospital, Shanghai Jiaotong University School of Medicine and Wiley Publishing Asia Pty Ltd.

PubMed | Chongqing Medical University and Dujiangyan Medical Center
Type: Journal Article | Journal: Journal of cancer research and therapeutics | Year: 2016

Although lobectomy has long been considered the standard procedure for Stage I nonsmall cell lung cancer (NSCLC), the selection of sublobectomy for Stage I NSCLC remains controversial. Amidst growing enthusiasm for minimally invasive surgery, the comparison of clinical outcomes after thoracoscopic sublobectomy versus thoracoscopic lobectomy may be of immense value.The present study aimed to compare the overall survival (OS) and disease-free survival (DFS) outcomes of patients who underwent thoracoscopic sublobectomy with those who underwent thoracoscopic lobectomy for Stage I NSCLC.An electronic search was conducted using five online databases from their dates of inception to February 2014. Hazard ratio (HR) was used in this meta-analysis, calculated from the published survival data.Eight studies met the selection criteria, including a total of 1613 patients (463 patients underwent thoracoscopic sublobectomy, and 1150 patients underwent thoracoscopic lobectomy). From the available data, compared with thoracoscopic sublobectomy, there was a significant benefit of thoracoscopic lobectomy on OS (HR: 1.45; 95% confidence interval [CI]: 1.11-1.90; P = 0.007). However, in subgroup analysis of thoracoscopic segmentectomy and thoracoscopic lobectomy, there was no significant difference in OS (HR: 1.03; 95% CI: 0.76-1.39; P = 0.85) or DFS (HR: 1.19; 95% CI: 0.67-2.10; P = 0.56) between the two groups. In addition, compared with thoracoscopic wedge resection, there was a significant benefit of thoracoscopic lobectomy on OS (HR: 4.19; 95% CI: 2.19-8.03, P < 0.0001).For Stage I patients, thoracoscopic segmentectomy leads to survival rates comparable to thoracoscopic lobectomy. However, the overall several of thoracoscopic lobectomy is superior to that of wedge resection.

Liu L.F.,Dujiangyan Medical Center
Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology | Year: 2011

To explore the dynamic expression and significance of Notch1 in the human kidney tubular epithelial cell transdifferentiation (KTECT)induced by TGF-β(1);. Normal human kidney epithelial cell line (HK-2) was cultured and then divided into blank group, and TGF-β(1);(10 ng/mL) induced group. At the 12 h, 24 h, 48 h and 72 h, the morphologic changes of HK-2 cells were observed under an inverted phase contrast microscope. The expression of α-SMA, E-cadherin and Notchl as well as their mRNA were examined by immunohisto-chemistry staining and RT-PCR respictively. Compared with the normal control group, the expression levels ofα-SMA and Notchl markedly increased in TGF-β(1); induced group (P<0.05), but the expression of E-cadherin obviously reduced(P<0.05). The expression of Notch1 protein and its mRNA was positively correlated to the expression ofα-SMA(r(protein);=0.958; r(mRNA);=0.944; P<0.05), and was negatively correlated to the expression of E-cadherin(r(protein);=-0.937; r(mRNA);=-0.921; P<0.05). Notch1 may participate in the KTECT induced by TGF-β(1);.

Yuan Z.,Dujiangyan Medical Center | He C.,Dujiangyan Medical Center
Kaohsiung Journal of Medical Sciences | Year: 2011

An 8-year-old girl presented with recurrent redness, warming, and pain of the lower extremities for more than 4 years, with exacerbation and accompanying swelling for the past 1 year and ulcers for 1 month. The episodes were triggered by exertion and heat. Her family history revealed that her mother had experienced similar symptoms. Physical examination showed proximal white nails and the distal border in normal color. There was some ulceration in the dorsum of the feet with thick, yellowish secretions, covered by some crusted lesions. Laboratory culture result showed that there were many Monilia guilliermondii in the ulcer specimen. Finally, she was diagnosed with juvenile onset of primary erythromelalgia and was given symptomatic treatment for neuropathic pain and pedal ulcers. Copyright © 2011, Elsevier Taiwan LLC. All rights reserved.

PubMed | Dujiangyan Medical Center
Type: Journal Article | Journal: International urogynecology journal | Year: 2014

We investigated the impact of diabetes mellitus (DM) on female lower urinary tract dysfunction.We prospectively collected data of 1,640 consecutive diabetic women from the inpatient departments and outpatient clinics of urology, endocrinology, geriatrics, and nephrology in primary, secondary, and tertiary referral hospitals, rural healthcare stations, and nursing homes in Dujiangyan, China. Clinical histories were taken on an individualized basis depending on patient presentation. Urodynamics were performed in the enrolled female diabetic patients after excluding other causes of lower urinary tract dysfunction. Data on lower urinary tract symptoms and urodynamic parameters were analyzed.Ninety-three percent of diabetic women complained of lower urinary tract symptoms, and 88% had positive urodynamic findings. Sixty-three percent presented with storage symptoms, 918 cases of which had detrusor overactivity, 787 impaired detrusor contractility, and 131 detrusor areflexia. Among the 918 patients with impaired detrusor contractility or detrusor areflexia, the mean first sensation of filling was 238.1ml, with a mean maximum cystometric capacity of 624ml, mean maximum flow rate of 9.6ml/s, mean detrusor pressure at maximum flow rate of 32.4cmH2O, and mean postvoid residual of 323ml. Thirty-eight of 131 patients with detrusor areflexia had impaired renal function on blood chemistry test, and massive bilateral ureterohydronephrosis and Christmas-tree-shaped bladder in videourodynamic studies. On the whole, 95% diabetic women had diabetic cystopathy.DM alters voiding patterns significantly, causing various lower urinary tract symptoms in a significant proportion of diabetic women. Diabetic cystopathy is a progressive condition with a spectrum of clinical symptoms and urodynamic findings. The prevalence of diabetic cystopathy is very high in Dujiangyan, China.

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