2.EXPERIMENTAL STUDIES ON HAEMOSTASIS AND HEALING PROMOTION EFFECT OF ETAN
Quansheng YAO ; Guolin ZHOU ; Chi ZHOU
Chinese Journal of Marine Drugs 1994;0(04):-
ETAN is a marine biomaterial which is made of chitosan,a partially deacetylated derivative of chitin ,and prepared by a foaming technique. The effects of absorbing exudate, stopbleeding,promoting wound healing and biological compatibility were observed in this experiment. The results showed ETAN could promote skin wound healing reduce the scab time of the wound surfaces. Skin tissue was healed quickly after ETAN was coated on wound skin surfaces,and it had marked effects of absorbing exudate,and haemostasis. Its effects were superior to that of gelatin sponge. ETAN could be fused with subcutaneous tisssue embeded subcutaneously two weeks later. The fused skin tissue was returned to normal skin tissue nearly after it was embeded four weeks . These experimental results showed ETAN had a better biological compatibility.
3.The interaction between ALOX5AP SG13S114A/T and COX-2 765G/C increases susceptibility to cerebral infarction
Wanzhang CHI ; Xingyang YI ; Xuerong HUANG ; Qiang ZHOU ; Lifen CHI
The Journal of Practical Medicine 2014;(21):3422-3425
Objective To investigate the interrelations of ALOX5AP SG13S114A/T , COX-2 765G/C , COX-1-50C/T polymorphisms and cerebral infarction. Methods The ALOX5AP SG13S114A/T, COX-2 765G/C and COX-1 50C/T polymorphisms in 411 cases with cerebral infarction and 411 controls were measured by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism method. The generalized multifactor dimensionality reduction (GMDR) method was employed to detect gene-gene interactions. Results Single-gene analysis showed that there were no significant differences in the genotype and allele frequency distributions of ALOX5AP SG13S114A/T, COX-2 765G/C and COX-1 50C/T between two groups. However, in those cases carrying ALOX5AP SG13S114AA as well as COX-2 765CC , the risk of cerebral infarction increased significantly by 2.842 times. Conclusions The combinational analysis among genes used in this study may be helpful in the elucidation of genetic risk factors for common and complex diseases.
5.Comparative study of the MRI findings of lymphoplasmacyte-rich meningioma with pathological findings
Jianli LIU ; Junlin ZHOU ; Chi DONG
Chinese Journal of Radiology 2010;44(11):1153-1156
Objective To investigate the MRI features of intracranial lymphoplasmacyte-rich meningioma and the corelation between the MRI features and pathologic findings. Methods The MRI and pathologic data of 7 patients with lymphoplasmacyte-rich meningioma were reviewed retrospectively. All cases were proved by surgery and pathological examinations. Results All lesions were solitary. The tumors crawled along meninges in 6 cases and in 5 cases the tumors did not appear as mass lesions. In 2 cases, the tumors appeared as half-moon. The boundary of all of the tumors was unclear, accompanying heavy peritumoral brain edema. The brain invasion can be seen in 7 cases. The lesions showed hypo-isointense signal on T1 WI in 7 cases, hyper-isointense signal in 5 cases and hypo-isointense in 2 cases on T2 WI.Enhancement scan demonstrated marked enhancement in 7 cases. Extensive thickening of the meninges was observed in 6 cases. Pathological results showed that the cells were abundant and diversified, with a great quantity of lymphoplasmacytes, and there were typical meningeal epithelial cells area in the surgical specimen. Conclusion The MRI findings of lymphoplasmacyte-rich meningioma show some features different from other common meningiomas, which would be helpful to the diagnosis and differential diagnosis.
6.Detection of extended-spectrum-?-lactamases with VITEK-AMS and double-disk synergy test
Tieli ZHOU ; Meijie DAI ; Shengying CHI
Chinese Journal of Laboratory Medicine 2000;0(06):-
Objectives To investigate the reliability of VITEK AMS for the detection of strains of E.coil and K.pneumoniae that produce ESBLs, and to determine the prevalence in our hospital of the two strains producing ESBLs.Method VITEK GNS 506 was used to detect ESBLs, and was compared with double disk synergy test. Results Among 48 strains of K.pneumoniase detected using VITEK GNS 506, 24 strains were found to be ESBLs positive, and 24 strains ESBLs negative. The result was consistent with that of double disk synergy test. Among 102 strains of E.coli detected using VITEK GNS 506, 41 strains were found to be ESBLs positive. The result was consistent with that of double disk synergy tests. 61 strains were found to be ESBLs negative detected using VITEK GNS 506. Among them, 19 strains were found to be ESBLs positive.Conclusion Detection ESBLs using VITEK AMS has some limitations in our area. Simple and reliable method should be used more with indicates for detection of ESBLs suitable for routine screening.
7.The Application of Structural Analysis in Medical Project Cost Accounting
Wenying CHI ; Zhufang ZHOU ; Jing HU
Chinese Health Economics 2013;(7):91-93
Analysis of medical project is the first step in the work of medical institutions to carry out medical project cost accounting. It introduces a case of a general hospital by analyzing the structure, department distribution, contact ratio of medical project to design the practical steps of medical project cost accounting.
8.Analysis on the Incidence and Mortality of Stroke in Urban Residents of Shenzhen
Haibin ZHOU ; Hongshan CHI ; Jingfan XIONG
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(03):-
Objective To illuminate the incidence and mortality of stroke in Shenzhen urban citizens,and to explore the regularity and characteristics of stroke occurrence in shenzhen.Method According to the guide of WHO-MONICA,the registered data of Shenzhen stroke incidence was collected and analyzed.Results The results showed there were 21 170 new stroke cases from 2003 to 2006 in Shenzhen,including 6661(31.0%) Ischemic stroke,1 4391(68.0%) Intracerebral Hemorrhage and 118(1.0%) unspecified cases,with gender ratio of 1.49 and the average age of 61.3?16.2 yrs.Compared to the World-wide standardized rate of 268.22/100 000,the average annual incidence of Stroke in shenzhen was 148.66/100 000.The annual incidence increased with age,and showed a tendency to rise steadily year by year in both genders.The mortality of stroke was 10.6% with no statistical significance between male rate of 11.1% and female rate of 9.8%.There was significant difference between the mortalities of Intracerebral Hemorrhage(25.2%) and Ischemic Stroke(3.6%)(P
9.The long non-coding RNA HOTTIP promotes the proliferation of non-small cell lung cancer cells through the regulation of apoptosis
Fachen ZHOU ; Lei ZHAO ; Yuxin BAI ; Xinming CHI ; Xin ZHOU
China Oncology 2015;(9):652-658
Background and purpose:Exploration of the effective early diagnostic and prognostic markers of non-small cell lung cancer (NSCLC) has important scientiifc signiifcance and clinical value. Recently, the role of long chain non-coding RNA (lncRNA) in the tumor attracts widespread attention. This study intended to investigate the level of lncRNA HOTTIP in NSCLC, the effect of HOTTIP on cell proliferation and its mechanisms.Methods:Expression of lncRNA HOTTIP in tumor and their matched non-tumor tissues were determined by quantitative real-time PCR (qRT-PCR) in NSCLC patients. Then, we analyzed the potential correlation of lncRNA HOTTIP expression levels in tumor tissues with clinicopathological features of NSCLC and clinical outcome. The effects of HOTTIP on NSCLC cell proliferation and apoptosis were tested usingin vitro MTT and lfow cytometric assays. Western blot method was uesd to detect the expressions of proteins.Results:LncRNA HOTTIP expression level was signiifcantly decreased in NSCLC tissues in comparison to adjacent non-tumor tissues (P<0.05). It was also proved that HOTTIP expression was associat-ed with NSCLC histological grade and lymph node metastasis. Moreover, knockdown of HOTTIP expression in A549 cell line decreased proliferation and enhanced apoptosis compared with transfected negative control. Western blot assay showed that the level of Bax protein was signiifcantly increased, whereas Bcl-2 was signiifcantly decreased in HOT-TIP-silencing A549 cell.Conclusion:HOTTIP is a novel prognostic biomarker and a potential therapeutic candidate forNSCLC.
10.The value of NSE, S100B and MBP in evaluating the severity and prognosis in patients with subarachnoid hemorrhage
Haiming CONG ; Xianglin CHI ; Zhaorong GUO ; Zhenguang LI ; Li ZHOU
Chinese Journal of Postgraduates of Medicine 2008;31(25):11-13
Objective To research the significance of the levels of neuron-specific enolase(NSE), S100B and myelin basic protein(MBP) in predicting the severity and prognosis in patients with subarachnoid hemorrhage (SAH). Methods The serum levels ofNSE, SI00B and MBPwere measured within 72 hours after the injury in 36 patients with SAH(SAH group), then the severity of illness and prognosis was evaluated by world federation of neurosurgical societies(WFNS) grade and Glasgow outcome scale(GOS) respectively. Twenty healthy persons were selected as controls(control group). Results After the injury, the serum levels of NSE,SI00B and MBP in SAH group increased significantly compared with those in control group. Moreover, there were significant difference in the serum levels of NSE, S100B and MBP among different groups in different severity of illness and prognosis. Assessed the severity and prognosis by serum levels of NSE 25 μg/L, S100B 1.2 μg/L and MBP 10.0 μg/L after 72 hours of SAH, the specificity of assessing the severity by NSE, SI00B and MBP was 71.43%,61.90%, 66.67%, and the sensitivity was 73.33%,86.62% and 73.33%. At assessment of prognosis,the specificity of NSE, S100B, MBP was 69.57%, 60.87%,65.22%, and the sensitivity was 61.54%,76.92% and 69.23%. Conclusion There are higher specificity and sensitivity in evaluating the severity of illnoss and prognosis in patients with SAH by serum levels of NSE, S100B and MBP.