2.Role of nuciear factor-?B in the ischemic acute renal failure rat
Jianzhou ZOU ; Xiaoqiang DING ; Li SUN ; Jie TENG ; Yi FANG
Chinese Journal of Nephrology 1994;0(04):-
Objective To determine the role of nuclear factor-?B(NF-?B) in ischemic acute renal failure (ARF) rats. Methods Gel mobility shift assay was used to detect the DNA binding activity of NF-KB in ischemic ARF rats and reverse transcription-polymerase chain reaction (RT-PCR) assay was used to study the expression of renal inducible nitric oxide synthase (iNOS) . The relationship between DNA binding activity of NF-?B and expression of iNOS was also analyzed. Results The DNA binding activity of NF-?B in renal cortex increased from 1.00 ?0.17 of controls to 3. 67 ? 1. 94 of 6 hours after ischemia-reperfusion ( P
3.Long-term versus short-term introvesical chemotherapy in patients with non-muscle-invasive bladder cancer: A systematic review and meta-analysis of the published results of randomized clinical trials.
Teng, LI ; Yi, XING ; Shu-Cheng, LIU ; Xiao-Min, HAN ; Wen-Cheng, LI ; Min, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(5):706-15
In order to assess the effect of long-term versus short-term intravesical chemotherapy in preventing the recurrence of patients with non-muscle-invasive bladder cancer, we searched several databases with words as mesh terms and free text words to find all eligible randomized clinical trials (RCTs) for the comparison of the two strategies of instillation durations. "Observed-Expected events research (O-E)" and "Variance (V)" for calculating hazard ratio (HR) were used in Revman 5.2 software recommended by Cochrane Collabration for data analysis. Sensitivity and subgroup analysis were selected to minish heterogeneity. GRADEpro 3.6 profile recommended by Cochrane Collabration was employed for quality assessment of analyses. Finally, 13 eligible RCTs with 4216 patients were included in this review and 16 comparisons from 13 trials were involved for analysis. The pooled analysis revealed no significant difference between long-term and short-term duration [HR=0.99, 95% CI (0.89, 1.11), P=0.89]. Within the subgroup analysis, patients benefited from long-term instillations with a start regimen of one immediate instillation [HR=0.83, 95% CI (0.69, 1.00), P=0.05]. But patients were not suitable to receive long-term instillations with epirubicin (EPI) [HR=1.01, 95% CI (0.91, 1.13), P=0.78]. The progression rate was not reduced after long-term instillations [HR=0.96, 95% CI (0.66, 1.39), P=0.82]. From our results, patients should not receive introvesical chemotherapy more than half a year. In contrast, patients with one immediate instillation are preferred to have a long-term duration at least one year. Long-term instillations can not reduce the progression rate.
4.Computer-aided design and rapid prototyping technique for individualized artificial semi-knee joint prosthesis: Establishment of three-dimensional model of femoral condyle
Yong TENG ; Zhen WANG ; Dichen LI ; Yi HUAN ; Yunyu HU ; Feng ZHANG
Chinese Journal of Tissue Engineering Research 2006;10(29):187-189,封三
BACKGROUND:At present, there are several limb-preserving methods,such as xenogenic bone joint replacement, artificial metal prothesis replacement and inactivation and replantation of tumor bone segment, etc.Each method has its advantages and disadvantages. In addition, mismatch of xenogenic and autogeneic joints and articular cartilage necrosis in the late stage, which affects joint function, are two important problems for large frozen bone-joint allograft at ultra-low temperature in repair of bone defect following bone tumor resections in extremities.OBJECTIVE:To evaluate a method to obtain outline information on the cartilage surface through spiral CT scanning data, so as to lay foundation for study on individualized artifical semi-knee joint based on rapid prototyping (RP) technique.DESIGN: Open experiment.SETTING: First Department of Trauma, Urumqi General Hospital of Lanzhou Military Area Command of Chinese PLA.MATERIALS: This experiment was carried out at Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University of Chinese PLA, and Institute of Advanced Manufacturing, Xi'an Jiaotong University from September 2001 to May 2003. CT scanning subject was a 25-year-old healthy male volunteer.METHODS:Distal femur was performed 1 mm in thickness scanning with Picker 6 000 spiral CT. Three-dimensional volume reconstruction was conducted at the Voxel Q Image workstation on Picker 6000 CT, then, two-dimensional tomography image of reconstruction data were downloaded with spacing of 0.1 mm. Data format converter software was self-developed. The downloaded image was treated through smoothing, de-noise and so on.Vector data of two-dimensional borderline outline of tomography image was calculated and input into Surfacer 9.0 software (American Imageware company) for vectorial three-dimensional reconstruction. According to recognition of articular cartilage outline and request of prothesis design, the threedimensional images of interested articular cartilage surface outline were extracted and used in the computer-aided design for individualized artificial semi-knee joint.MAIN OUTCOME MEASURES:Vector converting of CT image and vector image of three-dimensional reconstruction of femoral condyle.RESULTS:Vector converting of CT image dafa had been come true using self-developed medical image vector converter software. Three-dimensional solid model of individualized femoral condyle was constructed with Surfacer9.0 three-dimensional processing software and edited according to design request. Three-dimensional model of articular cartilage requested by artifical semi-knee joint prothesis was extracted for computer-aided design. The constructed articular surface outline could be treated further to complete computer-aided design of artificial semi-knee joint prothesis; The file format was .stl, which could be recognized by RP software and used in engineering.CONCLUSION:Vector reconstruction of articular cartilage outline is performed based on spiral CT data that can obtain precise three-dimensional solid model of articular cartilage outline. The three-dimensional model can be edited, which lays foundation for computer-aided design and RP manufacturing of artificial semi-knee joint prothesis compounded with large segment xenogenic bone; It is easy and practicable in vector converting of medical image information with this method, and it also has good application prospect in biomanufacturing field in orthopaedic and oral maxillofacial surgery.
5.Chronic intermittent hypobaric hypoxia ameliorates myocardial apoptosis through inhibiting mitochondrial pathway in rats with metabolism syndrome
Fang YUAN ; Yanqing LI ; Xu TENG ; Jingjing ZHOU ; Zan GUO ; Xin WANG ; Ziwei ZHANG ; Yi ZHANG
Chinese Pharmacological Bulletin 2015;(8):1131-1135,1136
Aim To confirm the inhibitory effect of chronic intermittent hypobaric hypoxia ( CIHH) on my-ocardial apoptosis induced by metabolism syndrome ( MS) , and to investigate its mechanism. Methods A rat model of MS induced by fructose was used. The blood pressure and the plasma content of glucose, tri-glyceride, cholesterol, and insulin after 12 h fasting were detected. HE stain were used to detect the cardi-ac structure. The TUNEL staining and activity of caspase-3 were used to detect the apoptosis of myocar-dium. The protein expression of Bcl-2 and Bax was detected by Western blot . Results Compared with the control rats, the blood pressure and the plasma content of glucose, triglyceride, cholesterol, and insu-lin were all increased in rats with MS. In rats with MS, the impairment of cardiac structure and the increase of apoptosis were also observed. The protein expression of Bcl-2 was significantly down-regulated, and that of Bax was significantly up-regulated in MS rats. The ratio of Bcl-2/Bax was also significantly decreased. Interest-ingly, CIHH could ameliorate all of the above issues. There was no significant difference between control group and CIHH group. Conclusion CIHH may im-prove the increased apoptosis in rats with MS via inhib-iting the mitochondrial pathway of apoptosis. This stud-y might provide new targets for therapy and the preven-tion of MS patients.
6.Protective effects of recombinant human thioredoxin on myocardium in mice with viral myocarditis
Zong-yan, TENG ; Xino-wei, WU ; Yi-na, ZHANG ; Jing, LI ; Ying-ying, CONG
Chinese Journal of Endemiology 2008;27(4):361-363
Objective To evaluate protective effects of recombinant human thioredoxin(TRX) in myocardial injury of mice with viral myocarditis. Methods We established viral myocarditis models by intraperitoneal injection with 0.1 ml 100TCID50 Coxsackie virus 3m(CVB3m), along with tail vein injection of recombinant human TRX (2 mg/kg) for protection. The control group was given equivalent volume of normal saline. The mice were killed 7 days following the injections. Serum lactate dehydrogenase (LDH) activity was determined and myocardial injury was examined with light microscopy. Results The somm LDH activity in Coxsackie virns-infected mice [(3130.50±390.57)U/L] was higher than that of animals in the control group[ (1617.86±155.42)U/L] and that of TRX protection group[ (1959.43±540.75)U/L], the difference being statistically significant (P<0.05); there was no significant difference between TRX protection group and the control group(P 0.05). Light microscopy showed that five of the eight Coxsackie rims-infected mice had myocardial lesions, including focal myocardial necrosis and inflammatory infiltration. There was no myocardial injury in the TRX protection group. Conclusions Recombinant human TRX can lessen myocardial injuries induced by infection with CVB3m, and so can protect myocardium.
7.Case study of Yersinia enterocolitica infection
Yi LIU ; Jianyuan FENG ; Yanchun LI ; Lili LIU ; Teng QI ; Ziren ZHOU
Chinese Journal of Zoonoses 2014;(7):769-771
Yersinia enterocolitica infection in humans and animals was investigated in this study to explore the source of infection .We collected samples from patients and pigs ,and then the strains were conducted to undergo serotyping ,virulence gene detection and PFGE molecular typing .Of the 150 patients samples ,3 were tested positive for Yersinia enterocolitica ,and one of them was O∶3 .Of the 222 pigs samples ,14 were tested positive for Yersinia enterocolitica ,and all of them were O∶3 .PFGE molecular typing showed that the Yersinia enterocolitica from patient and pig had high homology .Our study con-firmed that Yersinia enterocolitica from pigs could infect people and find that it could exist in the cured patient for at least two months .
8.The overall action molecular mechanism of anti-hepatitis B active extracts in Flos chrysanthemi indici based on epigenetics and metabonomics
Fang-ping ZHANG ; Yun-yu WANG ; Xin-tao CHENG ; Dong-hao WANG ; Ying-mei LI ; Teng-teng LIU ; Shuang LI ; Yi-chao ZHENG ; Ling FU ; Yue-feng BI
Acta Pharmaceutica Sinica 2022;57(8):2352-2363
Using the concepts and methods of epigenetics and metabolomics, to investigate the overall action molecular mechanism of
9. Analysis of incidence and mortality for upper digestive tract cancers and results of early detection and treatment program in Feicheng, Shandong Province
Li YI ; Teng ZHAO ; Yanyan LI ; Wanqing CHEN ; Deli ZHAO
Chinese Journal of Preventive Medicine 2017;51(5):403-408
Objective:
To investigate the trend of esophageal and stomach cancer incidence and mortality in Feicheng during 2000 to 2013, and to evaluate the effects of the national project of screening for upper digestive tract cancers from 2006 to 2015 in Feicheng.
Methods:
We collected 26 569 cases, which were coded of C15 and C16 in the 10th edition of international classification of diseases (ICD) during the period of 2000-2013. The data came from cancer registration system of Feicheng, Shandong Province, China. These cases already covered 21 679 882 person-year. The annual percent change (APC) of incidence and mortalit were analyzed. The risk factors of upper gastrointestinal cancer were investigated and evaluated for people aging 40-69 in three street offices and eleven townships of Feicheng, and endoscopic screening was conducted among people who was in high risk. The corresponding data were used to analyze the early detection project of upper gastrointestinal cancer screening and early diagnosis, with the index of detection rate, early diagnosis rate, early treatment rate and other indicators.
Result:
There were 26 569 new cases of esophageal cancer and gastric cancer occurred in Feicheng from 2000 to 2013. The incidence of esophageal cancer gradually increased since 2000 with 76.06 per 100 000 people (575/756 005) and reached the peak in 2010 with incidence rate of 118.76 per 100 000 people (852/717 429), with the annual percent change at about 4.3% (95
10.Clinical study on effect of Erzhi Tiangui Granule in improving the quality of oocytes and leukemia inhibitory factor in follicular fluid of women undergoing in vitro fertilization and embryo transfer.
Fang LIAN ; Yi-li TENG ; Jian-wei ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2007;27(11):976-979
OBJECTIVETo investigate the effects of Erzhi Tiangui Granule (ETG) on the concentration of leukemia inhibitory factor (LIF) in follicular fluid (FF) and quality of oocytes/embryos after in vitro fertilization and embryo transfer (IVF-ET).
METHODSWomen undergoing IVF-ET were randomly assigned to two groups: the treated group (42 cases) treated with ETG combined with Western medicine and the control group (38 cases) treated with Western medicine alone. Syndrome of Shen-deficiency, amount of oocytes, rates of mature oocytes, fertilization, cleavage, high-quality embryos and pregnancy, as well as LIF level in FF were observed and compared between the two groups. The relationship of LIF level with mature oocyte rate and high-quality embryo rate was analyzed, respectively.
RESULTSIn the treated group after treatment, the syndrome of Shen-deficiency and the above-mentioned indexes tested were improved better than those in the control group, respectively. Correlation analysis showed that the LIF level in FF was positively correlated with the rate of mature oocyte, high-quality embryo and the outcome of pregnancy.
CONCLUSIONETG can distinctively increase the amount of oocyte, elevate the quality of embryo and raise the successful rate of IVF-ET. The mechanism maybe correlated to the increase of LIF level in FF and the activating of microenvironment for its full expression.
Adult ; Drugs, Chinese Herbal ; therapeutic use ; Embryo Transfer ; Female ; Fertilization in Vitro ; methods ; Follicle Stimulating Hormone ; therapeutic use ; Follicular Fluid ; metabolism ; Humans ; Infertility, Female ; drug therapy ; Leukemia Inhibitory Factor ; metabolism ; Medicine, Chinese Traditional ; Oocytes ; cytology ; Phytotherapy ; Yang Deficiency ; drug therapy