Pudong New Area Peoples Hospital

Shanghai, China

Pudong New Area Peoples Hospital

Shanghai, China
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Chen Y.,Beijing Institute of Technology | Wang F.,Beijing Institute of Technology | Zhang N.,Beijing Institute of Technology | Li Y.,Beijing Institute of Technology | And 2 more authors.
Colloids and Surfaces B: Biointerfaces | Year: 2017

In the present study, a chitosan derivative with long chain quaternary ammonium locating grafted at 6-OH (CTS-6-QAS) was designed and prepared via a novel click reaction. The structure and thermal stability of the products of each step were determined with Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). Rheological tests indicate that CTS-6-QAS possesses excellent thermally induced hydrogel formation property in the presence of β-glycerophosphate (β-GP). Based on these results, a novel thermally induced/polyelectrolyte complex CTS-6-QAS/alginate (SA)/β-GP dual-network hydrogel was designed. This controllable preparation method can avoid the disadvantages of the preparation methods for single thermo-induced hydrogels and polyelectrolyte complex hydrogels, and promote the homogeneity of the hydrogel. Porous sponges were prepared by freeze-drying the CTS-6-QASSA/β-GP hydrogels. The effects of hydrogel preparation conditions on the porous structure and swelling property of the sponges were quantitatively investigated. Tea tree oil (TTO), a natural antibacterial agent, was successfully embedded in the hydrogel due to the lipophilicity of the long chain quaternary ammonium grafted at 6-OH of chitosan. The sustained release of TTO from the hydrogel was studied. © 2017 Elsevier B.V.

Hou S.,Shanghai JiaoTong University | Zhang L.,Pudong New Area Peoples Hospital | Chen Q.,Shanghai JiaoTong University | Fang A.,Shanghai JiaoTong University | Cheng L.,Shanghai Institute of Planned Parenthood Research
International Journal of Gynecology and Obstetrics | Year: 2010

Objective: To compare the efficacy of 1-day and 2-day mifepristone and misoprostol intervals for second trimester termination of pregnancy between 13 and 16 weeks. Methods: A prospective randomized cohort study of 100 women who underwent voluntary termination between 13 and 16 weeks of gestation. Patients were randomly assigned to receive 200 mg of oral mifepristone, followed 1 day (group 1) or 2 days (group 2) later by 600 μg of vaginal misoprostol. All patients received 400 μg of oral misoprostol every 6 hours for a maximum of 2 doses. Main outcome measure was successful abortion rate at 24 hours after the start of misoprostol treatment. Secondary outcome measures were induction-to-abortion interval and frequency of adverse events. Results: The 24-hour successful abortion rate was similar between groups 1 and 2 (47 [94%] vs 50 [100%]; P = 0.241). The mean misoprostol-to-abortion interval was also similar (7.0 ± 3.0 vs 6.8 ± 4.3 hours; P = 0.744). Among the 86 patients for whom histological examination of the products of conception was performed, retained chorionic villi rates were higher in the 1-day regimen group compared with the 2-day regimen group (46.2% [18/39] vs 29.8% [14/47]; P < 0.001). Conclusion: A 2-day mifepristone-misoprostol interval resulted in fewer incomplete abortions than a 1-day interval for second trimester termination of pregnancy between 13 and 16 weeks. © 2010 International Federation of Gynecology and Obstetrics.

Hou S.,Shanghai JiaoTong University | Chen Q.,Shanghai JiaoTong University | Zhang L.,Pudong New Area Peoples Hospital | Fang A.,Shanghai JiaoTong University | Cheng L.,Shanghai Institute of Planned Parenthood Research
European Journal of Obstetrics Gynecology and Reproductive Biology | Year: 2010

Objectives: To compare the effectiveness and safety of mifepristone/ misoprostol versus intra-amniotic injection of ethacridine lactate for the termination of second trimester pregnancy. Study design: 210 women requesting voluntary termination of pregnancies at between 16 and 24 weeks of gestation were randomly assigned into two groups. Group 1 (MM) received a single oral dose of 200 mg mifepristone and, 36-48 h later, 400 μg of misoprostol vaginally, with up to three additional oral doses of 400 μg misoprostol every 12 h. Group 2 (EL) received an intra-amniotic injection of 100 mg ethacridine lactate. The primary outcome was successful abortion rate. Secondary outcomes included the difference in the induction-to-abortion interval and the frequency of adverse events. Results: Both MM and EL regimens were effective, with successful abortion rates of 96.19% and 94.29%, respectively (P = 0.746). The complete abortion rates were 68.57% and 70.48%, respectively. The induction-to-abortion interval was longer in the MM group than in the EL group (50.57 ± 6.80 h vs. 43.02 ± 8.74 h, respectively, P < 0.001). Both treatments were safe, although there was a significant difference in rates of gastrointestinal and fever adverse events between the two groups. Conclusions: Both MM and EL regimens were effective with high success rates and were safe for the termination of second trimester pregnancy. © 2010 Elsevier Ireland Ltd. All rights reserved.

PubMed | Pudong New Area Peoples Hospital and Beijing Institute of Technology
Type: | Journal: Carbohydrate polymers | Year: 2016

The chitosan physical hydrogels formed under gaseous ammonia atmospheres usually have poor mechanical properties and low antibacterial activities, which limit its application as biomaterials. In the current study, CTS-Ag

Li J.,Pudong New Area Peoples Hospital | Li J.,Tongji University | Sheng C.,Pudong New Area Peoples Hospital | Li W.,Tongji University | Zheng J.-H.,Tongji University
International Journal of Clinical and Experimental Pathology | Year: 2014

Background: Protein phosphatase-2A (PP2A) is one of the major cellular serine-threonine phosphatases. It positively regulates apoptosis and negatively regulates the mitogenic pathway, suggesting that loss of it might be involved in cancer development. Recent studies found its association with breast, lung and colorectal cancer; however, its expression profile and its prognostic value in clear cell renal cell carcinoma (ccRCC) have not been investigated. Methods: Real-time quantitative PCR (qRT-PCR) and Western blot were used to explore PP2A expression in ccRCC and normal renal tissues. Moreover immunohistochemistry (ICH) was used to detect the expression of PP2A in ccRCC. Spearman's rank correlation, Kaplan-Meier plots and Cox proportional hazards regression model were used to analyze the data. Results: Down-regulated expression of PP2A mRNA and protein was observed in the majority of ccRCC by qRT-PCR and Western blot when compared with their paired normal renal tissues. Clinic pathological analysis was showed a significant correlation existed between the lower expression of PP2A protein with the histological grade, lymph node metastasis and tumor distant metastasis (P<0.05); Survival analysis by Kaplan-Meier survival curve and log-rank test demonstrated that reduced PP2A expression in cancer tissue predicted poorer overall survival (OS) compared with group in higher expression. Notably, multivariate analyses by Cox's proportional hazard model revealed that expression of PP2A was an independent prognostic factor in ccRCC. Conclusions: These results suggest that the aberrant expression of PP2A in human ccRCC is possibly involved with tumorigenesis and development, and the PP2A protein could act as a potential biomarker for prognosis assessment of renal cancer. Further studies on the cellular functions of PP2A need to address these issues.

Tong W.-S.,Pudong New Area Peoples Hospital | Zheng P.,Pudong New Area Peoples Hospital | Xu J.-F.,Pudong New Area Peoples Hospital | Guo Y.-J.,Pudong New Area Peoples Hospital | And 5 more authors.
Neuroradiology | Year: 2011

Introduction: Since progressive hemorrhagic injury (PHI) was introduced in neurosurgical literatures, several studies have been performed, the results of which have influenced doctors but do not define guidelines for the best treatment of PHI. PHI may be confirmed by a serial computerized tomography (CT) scan, and it has been shown to be associated with a fivefold increase in the risk of clinical worsening and is a significant cause of morbidity and mortality as well. So, early detection of PHI is practically important in a clinical situation. Methods: To analyze the early CT signs of progressive hemorrhagic injury following acute traumatic brain injury (TBI) and explore their clinical significances, PHI was confirmed by comparing the first and repeated CT scans. Data were analyzed and compared including times from injury to the first CT and signs of the early CT scan. Logistic regression analysis was used to show the risk factors related to PHI. Results: A cohort of 630 TBI patients was evaluated, and there were 189 (30%) patients who suffered from PHI. For patients with their first CT scan obtained as early as 2 h post-injury, there were 116 (77.25%) cases who suffered from PHI. The differences between PHIs and non-PHIs were significant in the initial CT scans showing fracture, subarachnoid hemorrhage (SAH), brain contusion, epidural hematoma (EDH), subdural hematoma (SDH), and multiple hematoma as well as the times from injury to the first CT scan (P<0.01). Logistic regression analysis showed that early CT scans (EDH, SDH, SAH, fracture, and brain contusion) were predictors of PHI (P<0.01). Conclusion: For patients with the first CT scan obtained as early as 2 h post-injury, a follow-up CT scan should be performed promptly. If the initial CT scan shows SAH, brain contusion, and primary hematoma with brain swelling, an earlier and dynamic CT scan should be performed for detection of PHI as early as possible and the medical intervention would be enforced in time. © 2010 Springer-Verlag.

Zheng P.,Pudong New Area Peoples Hospital | He B.,Pudong New Area Peoples Hospital | Guo Y.,Pudong New Area Peoples Hospital | Zeng J.,Pudong New Area Peoples Hospital | Tong W.,Pudong New Area Peoples Hospital
Journal of Neurosurgery | Year: 2015

Obj ect The relationship between microstructural abnormality in patients with traumatic brain injury (TBI) and hormone-secreting status remains unknown. In this study, the authors aimed to identify the role of the apparent diffusion coefficient (ADC) using a diffusion-weighted imaging (DWI) technique and to evaluate the association of such changes with hypopituitarism in patients with TBI. Methods Diffusion-weighted images were obtained in 164 consecutive patients with TBI within 2 weeks after injury to generate the pituitary ADC as a measure of microstructural change. Patients with TBI were further grouped into those with and those without hypopituitarism based on the secretion status of pituitary hormones at 6 months postinjury. Thirty healthy individuals were enrolled in the study and underwent MRI examinations for comparison. Mean ADC values were compared between this control group, the patients with TBI and hypopituitarism, and the patients with TBI without hypopituitarism; correlational studies were also performed. Neurological outcome was assessed with the Glasgow Outcome Scale (GOS) for all TBI patients 6 months postinjury. Results In the TBI group, 84 patients had hypopituitarism and 80 had normal pituitary function. The pituitary ADC in TBI patients was significantly less than that in controls (1.83 ± 0.16 vs 4.13 ± 0.33, p < 0.01). Furthermore, the mean ADC was much lower in TBI patients with hypopituitarism than in those without pituitary dysfunction (1.32 ± 0.09 vs 2.28 ± 0.17, p < 0.05). There was also a significant difference in ADC values between patients with hyperprolactinemia and those with normal prolactin levels (p < 0.05). Additionally, the receiver operating characteristic curve analysis showed that the pituitary ADC could predict hypopituitarism with a sensitivity of 90.0% and a specificity of 90.1% at the level of 1.720 (ADC value). Finally, the ADC value was positively correlated with neurological outcome at 6 months following TBI (r = 0.602, p < 0.05). Con clusions Use of DWI demonstrated that the pituitary ADC is correlated with hormone-secreting status in TBI patients. The authors suggest that pituitary ADC may be a useful biomarker to predict pituitary function in patients with TBI. © AANS, 2015.

Yuan Z.,Pudong New Area Peoples Hospital | Quan J.,Pudong New Area Peoples Hospital | Yunxiao Z.,Pudong New Area Peoples Hospital | Jian C.,Pudong New Area Peoples Hospital | And 2 more authors.
Journal of Breast Cancer | Year: 2013

Purpose: This study aimed to evaluate the diagnostic value of SonoLiver software for parametric imaging in breast tumors. Methods: Contrast-enhanced ultrasound (CEUS) was performed in 216 breast lesions (113 malignant, 103 benign). The CEUS parameters were compared between benign and malignant lesions. The rise time, the time to peak, the mean transit time and dynamic vessel pattern (DVP) were analyzed using SonoLiver software. Results: Quantitative analysis showed that the rise time was 16.52±4.15 seconds in the benign group vs. 13.86±3.36 seconds in the malignant group (p=0.007), and the time to peak was 19.86±4.87 seconds in the benign group vs. 16.52±4.85 seconds in the malignant group (p=0.009). The mean transit time was 80.55±18.65 seconds in the benign group vs. 65.16± 20.28 seconds in the malignant group (p=0.006). The difference between the distribution of DVP in benign and malignant tumors was statistically significant. One hundred one malignant tumors (89.4%) performed an irregular red/yellow fill in the region of interest (ROI) and 85 benign tumors (82.5%) performed a single blue/green fill in the ROI. The sensitivity, specificity, and accuracy of parametric imaging in breast tumors were 84.1%, 85.4%, 84.7%, respectively. Conclusion: The CEUS parametric imaging can distinguish differences between malignant and benign breast tumors as well as provide diagnostic information on breast lesions. © 2013 Korean Breast Cancer Society. All rights reserved.

Zeng J.,Pudong New Area Peoples Hospital | Tong W.,Pudong New Area Peoples Hospital | Zheng P.,Royal Melbourne Hospital
Journal of Neurosurgery | Year: 2013

Object: The authors undertook this study to evaluate the effects of continuous intracranial pressure (ICP) monitoring-directed mannitol treatment on kidney function in patients with moderate or severe traumatic brain injury (TBI). Methods: One hundred sixty-eight patients with TBI were prospectively assigned to an ICP monitoring group or a conventional treatment control group based on the Brain Trauma Foundation guidelines. Clinical data included the dynamic changes of patients' blood concentrations of cystatin C, creatinine (Cr), and blood urea nitrogen (BUN); mannitol use; and 6-month Glasgow Outcome Scale (GOS) scores. Results: There were no statistically significant differences with respect to hospitalized injury, age, or sex distribution between the 2 groups. The incidence of acute kidney injury (AKI) was higher in the control group than in the ICP monitoring group (p < 0.05). The mean mannitol dosage in the ICP monitoring group (443 ± 133 g) was significantly lower than in the control group (820 ± 412 g) (p < 0.01), and the period of mannitol use in the ICP monitoring group (3 ± 3.8 days) was significantly shorter than in the control group (7 ± 2.3 days) (p < 0.01). The 6-month GOS scores in the ICP monitoring group were significantly better than in the control group (p < 0.05). On the 7th, 14th, and 21st days after injury, the plasma cystatin C and Cr concentrations in the ICP-monitoring group were significantly higher than the control group (p < 0.05). Conclusions: In patients with moderate and severe TBI, ICP-directed mannitol treatment demonstrated a beneficial effect on reducing the incidence of AKI compared with treatment directed by neurological signs and physi ological indicators. © AANS, 2013.

PubMed | Pudong New Area Peoples Hospital
Type: Journal Article | Journal: Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery | Year: 2016

To explore the efficacy and the mechanism of Bisacodyl in treating slow transit constipation model rats.A total of 30 healthy rats were enrolled. Twenty rats received intragastric diphenoxylate to develop slow transit constipation (STC) model, and 10 untreated rats were set as blank control. STC rats were subdivided into two groups: STC Bisacodyl group (fed with Bisacodyl) and STC control group (common feed). Body weight, number and dry weight of faeces, and intestinal transit time were compared among 3 groups. Interstitial cells of Cajal(ICC) and c-Kit protein expression were measured by immunohistochemical staining. Restults Compared to blank control rats, at 100-day of receiving intragastric diphenoxylate, above 20 rats presented the decrease of body weight and feces number, the increase of dry weight of faeces, and the delay of intestinal transit time, indicating the successful establishment of STC rat model. One month after feeding, compared to STC control group, STC Bisacodyl grap had an increased feces number[(36.66.8) pill/day vs. (26.86.0) pill/day], decreased dry weight of feces [(150.610.5) mg/pill vs. (171.616.3) mg/pill] and shortened intestinal transit time [(416.950.6) minutes vs. (495.366.8) minutes], and the differences were statistically significant(all P<0.05). Dissolution of ICC basement membrane, damage of connection between ICC and surrounding cells, and atrophy of ICC nucleus structure were found in STC control rats. ICC (8.201.92 per field] and c-Kit expression (12.68%2.59% ) in STC control rats were significantly lower than those in blank control rats(36.006.25 per field and 71.50 %8.27%) (P=0.000). Compared to STC control group, the connection between ICC and surrounding cells enhanced obviously, ICC (18.803.70 per field) and c-Kit expression (45.91%6.80%) were significantly higher in STC Bisacodyl group (all P=0.000).Bisacodyl treatment can relieve STC symptoms, which may be associated with increased ICC number and c-Kit protein expression.

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