1. Detection of mycoplasma infection in human laryngeal carcinoma
Academic Journal of Second Military Medical University 2006;27(8):817-819
Objective: To detect and analyze the mycoplasma infection in human laryngeal carcinoma and to explore the relationship between the infection with the development, progression and prognosis of laryngeal cancer. Methods: Immunohistochemical methods were employed to detect the mycoplasma infection in 214 specimens of different laryngeal lesions and cervical lymphatic tumors metastasized from laryngeal cancer, including 121 laryngeal cancer specimens, 21 laryngeal precancerous specimens, 17 vocal cord polypus specimens. 14 normal laryngeal tissues adjacent to cancer tissues, 9 normal laryngeal tissues opposite to the cancer, and 32 cervical lymphatic tumor specimens metastasized from laryngeal cancer. The infection results were subjected to statistical analysis. Results: The positive rates of mycoplasma 2G10 antibody in laryngeal carcinoma specimens, cervical lymphatic tumor specimens metastasized from laryngeal cancer, laryngeal precancerous specimens, vocal cord polypus specimens, normal laryngeal tissues adjacent to cancer tissues, and normal laryngeal tissues opposite to the cancer were 44.63% (54/ 121),34.38%(11/32),23.81%(5/21),17.65%(3/17),7.14%(1/14),and 0%(0/9), respectively, with those of laryngeal carcinoma specimens and cervical lymphatic tumor specimens metastasized from laryngeal cancer significantly higher than those of other specimens(P<0.05). The positive rate of early stage laryngeal carcinoma (I-II stage, 16.36%[9 /55]) was significantly lower than that of advanced stage laryngeal carcinoma(III-IV, 68.18%[45/66]), (P<0.01). The positive rate of laryngeal carcinoma with cervical metastasis was higher (62.50%[20/32]) than that without cervical metastasis(35.96%[32/89),(P<0.01). The 3- and 5-year survival rates of III-IV stage patients positive of 2G10 antigen (60.0%[27/45], 58.14%[25/43]) were lower than those of patients negative of 2G10 antigen (85.71%[18/21],84.21%[16/19]),(P<0.05). Conclusion: Laryngeal carcinoma has a high infection rate of mycoplasma, which may be related with the development, progression and prognosis of laryngeal carcinoma.
2.Study on the Drug Utilization for Lower Respiratory Tract Diseases
Shengxin CHEN ; Jingxia ZHAO ; Zhigao HE ; Shuiyi WEI ; Lixin SHU
Chinese Journal of Pharmacoepidemiology 2001;10(1):19-21
To study the status and patterns of the drug utilization in the diseases of lower respiratory tract, the drug utilization for 290 inpatients with respiratory tract diseases in a Shanghai hospital druing 1993-1997 was analyzed by using Acute Physiology, Age, Chronic Health Evaluation(APACHE) and index of defined daily dose numbers(DDDs). The relativity between APACHE and DDDs was studied. It was found that most common drugs was anti-infection agents and expectorants, accounting for 39.06% and 38.38 %, respectively. The quantitative relationship between drug consumption and disease severity was not observed. It is concluded that the status of the drug utilization can't be demonstrated by analyzing the frequency of drug use by using DDDs.
3.The Curative Effect of MIPPO Technology United LCP Treatment for Humeral Fractures
Wei SHANG ; Gang ZHAO ; Jun SHU ; Xuejuan ZHANG
Journal of Kunming Medical University 2013;(9):63-65
Objective To discuss the clinical methods and curative effect of minimally invasive percutaneous plate osteosynthesis ( MIPPO) technique applied in the treatment of humeral shaft fractures. Methods A retrospective analysis was applied on 14 patients with humeral fracture underwent the MIPPO operation in our department from April 2012 to March 2013. There were 8 males and 6 females, with their ages ranging from 28 to 64 years. Results Fourteen cases were followed up for 2 months to 12 months (an average of 6 months) . Their incisions got primary healing. The fracture segments got satisfactory reduction with good apposition and alignment radiologically, and the radial never function recovered well. UCLA score concluded as excellent in 13 cases and good in 1 case. Conclusion MIPPO is a safe and effective treatment for the humeral fracture with the benefits of less invasion, fewer complications and higher union rate.
4.Noninvasive gastric motility measurement and evaluation by bioimpedance
Chaoshi REN ; Zhangyong LI ; Wei WANG ; Shu ZHAO ; Juan DENG
Chinese Journal of Tissue Engineering Research 2010;14(9):1653-1657
BACKGROUND:Bioimpedance method can be used to extract physiology and pathology information relative to the gastricmotility states,to investigate the courses of contraction,peristalsis,transmission and emptying of the stomach,to measure andevaluate gastric motility function.However,early studies mainly focused on the emptying of the stomach,and few studies onevaluation of gastric motility by extracting gastric motility information.OBJECTIVE:To understand the gastric motility from electricity-mechanism composite concept and to establish a noninvasive,convenience measurement method of gastric motility impedance.METHODS:Based on the characters of gastric motility impedance signal,a measurement method of impedance gastric motility isintroduced.Some foundation experiments about the gastric emptying measurement,the gastric motility compare between fastingand repast,the gastric motility comparison of healthy volunteers during different periods and some medicine effects on gastricmotility have carried out.The gastric motility measurement of the patients with functional dyspepsia and gastric motility evaluationfor the patients with erosive gastritis had been reported.RESULTS AND CONCLUSION:Using electrical bioimpedance method,according to the electrical property of the stomach tissueor the food in stomach and the change rules of the property,the physiology and pathology information relative to the gastricmotility states can be extracted,the courses of contraction,peristalsis,transmission and emptying of the stomach can beinvestigated and noninvasive measure and evaluation of gastric motility function can be realized.
5.Regulatory effect of miR-181 a on breast cancer resistance protein
Shu LIN ; Xuyang JIAO ; Lin ZHAO ; Minjie WEI
Chinese Pharmacological Bulletin 2014;(8):1073-1078
Aim ToinvestigatetheeffectsofmiRNA-181 a on breast cancer resistance protein ( BCRP ) . Methods Bioinformaticspredictedbindingsitesof BCRP mRNA-3ˊUTR region and miR-181 a;further lu-ciferase reporter gene analysis confirmed that miR-181 a could combine with BCRP mRNA-3ˊUTR; qRT-PCR and Western blot detected related mRNA and protein expressionlevels.Results Comparedwithnegative transfection group, after the miR-181a mimic and PGL3-BCRP 3ˊUTR were co-transfected, luciferase ac-tivity was significantly decreased ( P <0 . 05 ) . After miR-181a mimic transfected MCF7/MX cells for 48h, compared to the negative group, the expression of miR-181 a in MCF-7/MX cells was increased ( P<0. 05 ) , BCRP mRNA, BCRP protein expression were signifi-cantly decreased ( P<0 . 05 ) , while mRNA expression and protein levels of MRP, P-gp, LRP did not change significantly ( P >0. 05 ); after transfecting miR-181 a inhibitor for 48h, compared to the negative group, the expression of miR-181 a in MCF-7 cells was reduced (P<0. 05). Meanwhile,BCRP mRNA expression and BCRP protein expression were also significantly in-creased ( P<0. 05 ) . The mRNA expression and pro-tein levels of MRP, P-gp, LRP did not change signifi-cantly(P>0.05).Conclusion miR-181acanregu-late BCRP expression by targeting the BCRP mRNA-3ˊUTR region.
6.Protective effect of asiatic acid from Potentilla chinensis on alcohol hepatic injury in rats.
Gan ZHAO ; Shu-juan LV ; Gang WEI ; Jin-bin WEI ; Xing LIN ; Quan-fang HUANG
China Journal of Chinese Materia Medica 2015;40(14):2866-2870
To study the protective effect and the mechanism of asiatic acid (AA) from Potentilla chinensis on alcohol hepatic injury in rats. Male Wistar rats were randomly divided into six groups: the normal control group, the AA control group (8 mg · kg(-1) AA), the model group (5.0-9.0 g · kg(-1) alcohol) and high, medium and low-dose AA-treated groups (alcohol + 8, 4, 2 mg · kg(-1) AA). Each group was orally administered with the corresponding drugs once a day for 24 weeks. Approximately 1. 5 hours after the final administration, all rats were killed, and their blood samples and hepatic tissues were collected. The AST and ALT in rat serum and the contents of MPO, TNF-α, IL-1β, SOD, GSH-Px, GSH-Rd and MDA in hepatic tissues were detected. The expressions of NF-κB, TLR4, CD14, MyD88, TRIF and protein expression in hepatic tissues were measured by western blot. The pathological changes in liver tissues were observed by histological examination. The results showed that compared with the model group, the AA-treated groups showed significant decreases in serum ALT, AST and MDA and increases in the activities of SOD, GSH-Px, GSH-Rd and MPO. Moreover, AA markedly inhibited the expressions of TNF-α, IL-1β, TLR4, CD14, MyD88 and NF-κB. The histological examination showed alleviated hepatic issue ijury to varying degrees. In short, asiatic acid (AA) from P. chinensis could protect alcohol-induced hepatic injury in rats. Its mechanism may be related to the inhibition of NF-κB inactivation and the reduction of inflammatory response.
Animals
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Liver
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drug effects
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pathology
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Liver Diseases, Alcoholic
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prevention & control
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Male
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NF-kappa B
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physiology
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Pentacyclic Triterpenes
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pharmacology
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Potentilla
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chemistry
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Protective Agents
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pharmacology
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Rats
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Rats, Wistar
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Toll-Like Receptor 4
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antagonists & inhibitors
7.R & D of medicine and vaccine for Ebola hemorrhagic fever
Tianxi DIAO ; Shoujun XU ; Xiaoyu ZHAO ; Wei ZHOU ; Peng LI ; Shu LIU ; Wei WANG
Military Medical Sciences 2014;(8):569-575
The outbreak of Ebola hemorrhagic fever in West Africa in February 2014 is the worst one in the history of the disease.Medicines and vaccines for Ebola have attracted special attention .This study utilizes Cortellis database of Thom-son Reuters and knowledge about Ebola virus to analyze current R&D of medicines and vaccines for Ebola in order to offer references for research and development .Study findings shows that there are mainly 5 important categories:vaccines, neu-tralizing antibodies , small-molecule anti-Ebola drugs , RNAi drugs and nucleotide drugs .In each category , there are prom-ising products under development that are worthy of attention .
8.Evaluation of the fetal cerebellar vermis using three-dimensional extended imaging
Wei LIU ; Ailu CAI ; Dan ZHAO ; Ting LI ; Zhongqiu XIN ; Shu YANG ; Shuxiang GUO
Chinese Journal of Ultrasonography 2008;17(11):981-984
Objective To evaluate the development of fetal cerebellar vermis using 3D transabdominal ultrasound,and provide evidence for prenatal screening fetal cerebellar vermis anomalies.Methods Totally 387 normal fetuses at 20~36 gestation weeks were examined by three-dimensional extended imaging(3DXI) to observe the fetal cerebellar vermis.The width,anteroposterior diameter,craniocaudal diameter of the cerebellar vermis,the angle between brain stem and vermis,a ratio between the area of anterior vermis and posterior vermis were measured,and the relationship between the gestational age and parameters mentioned above were analyzed.Results The multi slice view of 3DXI and 3D reconstructed sagittal section well evaluated the integrity of vermis morphous and vermis size,identified characteristic signs of vermis:the fourth ventricle apex and vermis crack.In normal fetus,brain stem and vermis were almost parallel,the angle between them was 3.97°±1.65°.There was no significant correlation between the angle and the gestational age.The area of the anterior vermis was smaller than that of posterior vermis,with a ratio of 0.76±0.06,which was also not related to gestational age.The width,anteroposte rior diameter and craniocaudal diameter of the cerebellar vermis were positively correlated with gestational age.Conclusions The multi slice view of 3DXI and 3D reconstructed sagittal section should help evaluate the development of the cerebellar vermis,accurately show the cerebellar vermis and its surrounding strutures,and provide a new way to evaluate the fetal cerebellar vermis.
9.Simulation research on three dimension electrical impedance tomography and evaluation of image reconstruction quality.
Juan DENG ; Qingguo WEI ; Hong SHA ; Shu ZHAO ; Yan WANG ; Chaoshi REN ; Fusheng LI
Journal of Biomedical Engineering 2013;30(6):1195-1199
Three dimensional electrical impedance tomography (3D-EIT) became an important branch of EIT recently. It is important to research imaging and image quality evaluation methods for single targets of different positions and multi-targets in 3D field. Using finite element subdivision method, 3D-EIT field was dispersed into cube unit in the present study for models with single target located in the center of field, middle of field, and near to the edge, respectively. For models with two targets and four targets near to the field edge, Tikhonov-Noser algorithm was adopted in image reconstruction. Imaging error function ER and structure similarity degree function SSIM were introduced to evaluate the reconstructed images. For the models with signal target, with the movement of the target from the center to the edge of the field, the value of ER increased and SSIM decreased, and reconstruction quality decreased. For the models with multi-targets near to the field edge, ER and SSIM increased and decreased respectively with the increase of target number, mage quality also decreased. Tikhonov-Noser algorithm is an effective 3D-EIT algorithm. ER and SSIM are adaptive for the characteristic of 3D-EIT images, and it can quantitatively evaluate the 3D-EIT imaging effect from the two perspective of imaging error and structure quality.
Algorithms
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Electric Impedance
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Image Processing, Computer-Assisted
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Imaging, Three-Dimensional
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Tomography
10.Development of operation patient security detection system.
Shu-Qin GENG ; Ren-Hai TAO ; Chao ZHAO ; Qun WEI
Chinese Journal of Medical Instrumentation 2008;32(6):438-439
This paper describes a patient security detection system developed with two dimensional bar codes, wireless communication and removal storage technique. Based on the system, nurses and correlative personnel check code wait operation patient to prevent the defaults. The tests show the system is effective. Its objectivity and currency are more scientific and sophisticated than current traditional method in domestic hospital.
Automatic Data Processing
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organization & administration
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Computer Communication Networks
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Humans
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Operating Room Information Systems
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organization & administration
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Patient Identification Systems
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methods
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Quality Assurance, Health Care
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methods
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Safety