1.Preliminary attempt to identify geoherbalism of Flos Lonicerae by sequence divergence of 5S-rRNA gene spacer region
Ping LI ; Zhaohui CAI ; Junbo XING ;
Chinese Traditional and Herbal Drugs 1994;0(09):-
Object To study the formation of geoherbalism of Flos Lonicerae on the molecular level Methods Genomic DNAs from different populations of Lonicera japonica Thunb , outgroup Lonicera similis Hemsl , and Lonicera confusa DC were extracted, the 5S rRNA gene spacer region amplified, sequuenced, and analysed with Mega 1 02 Results The fragments of 5S rRNA gene spacer region in Lonicera L was about 210 bp with G+C content up to about 70% The sequences were different in various populations, and can be identified by sequencing The genetic distance between L confusa and L japonica was larger Conclusion The genuine distance between species was larger than that within species; the genetic distance among genuine crude drugs was smaller; the genetic distance among genuine and ungenuine crude drugs were bigger than that among genuine crude drugs
2.A Comparative Study on CTA and DSA in Diagnosis of Intracranial Aneurysms
Dacheng LI ; Xiling XING ; Yajun LI ; Li CAI
Journal of Practical Radiology 2001;0(08):-
Objective To evaluate the value of three dimensional CT angiography in the diagnosis of intracranial aneurysms by the comparison with DSA.Methods CTA and DSA were performed in 30 patients(aged 34~76 years) who were highly suspected with intracranial aneurysms.Feasible endovascular treatment were performed simultaneously.The sensitivity,specificity,accuracy in detecting the aneurysms,in demonstrating the neck of the aneurysms and the relationship of parent artery were compared between CTA and DSA.Results 26 intracranial aneurysms were detected by CTA,the sensitivity,sepcificity and accuracy were 95.5%,87.5% and 93.3% respectively.There were no statistical differences among the sensitivity,specificity,accuracy between CT and DSA(?
3.Epidemic characteristics and tendency prediction of hemorrhagic fever with renal syndrome from 2005 to 2014 in Xi'an
Qinli LI ; Zhenghua CAI ; Yuan XING ; Guangshuai LI ; Rui ZHU
Chinese Journal of Endemiology 2015;34(8):606-610
Objective To analyze the epidemiologic characteristics and tendency of hemorrhagic fever with renal syndrome (HFRS) in Xi'an from 2005 to 2014,and to grasp the epidemic regularity and predict the trend of HFRS for establishing effective prevention and control measures.Methods The descriptive epidemiological method was used to analyze the epidemic situation of HFRS in Xi'an from 2005 to 2014.The autoregressive integrated moving average (ARIMA) model was applied to analyze,fit and predict the epidemic data of 2015.Results There were 8 500 HFRS patients in Xi'an from 2005 to 2014,the incidence rate was 10.60/100 000.The morbidity increased at first and then decreased from 2005 to 2014;the incidence rate was 9.06/100 000 in 2005 and up to 19.46/100 000 in 2010,then down to 3.43/100 000 in 2014.More cases were reported in spring (15.85%,1 347/8 500) and autumn-winter seasons (72.91%,6 197/8 500).The high-risk age group of HFRS was between 15 to 59 years,accounting for 77.71% (6 605/8 500) of the overall incidence rate;there were no significant differences in < 15 years,15 to 59 years and > 59 years groups (x2 =15.63,P > 0.05).The male to female ratio was 3.01 ∶ 1.00,male incidence was 15.57/100 000 and female incidence rate was 5.41/100 000,and the difference was statistically significant between gender (x2 =1 948.84,P < 0.05).The main occupation was farmers,accounting for 66.04% (5 613/8 500) of the overall incidence rate.The top 4 districts were Chang'an,Zhouzhi,Huxian and Lintong;the incidence rate was 31.07/100 000,22.74/100 000,21.09/100 000 and 11.06/100 000,respectively,and the 10 years cumulative incidence rate was higher than the total incidence.The monthly incidence was predicted with ARIMA (1,1,0) × (0,1,1)12 models in Xi'an from 2005 to 2014,and the predicted number of cases was 235 in 2015 (lower than 2014).Conclusions The overall trend of the epidemic has continued to fall but slowly.Positive and effective comprehensive measures should be taken to maintain the incidence of hemorrhagic fever at a lower level.
4.Nursing care in ultra-high pressure balloons angioplasty treatment of arteriovenous fistula stenosis in hemodialysis patients
Li CAI ; Yanyu LIN ; Xing HUANG ; Hong LI
Chinese Journal of Interventional Imaging and Therapy 2017;14(7):412-415
Objective To investigate the nursing care in ultra-high pressure balloon dilatation for treating in patients with hemodialysis patients.Methods The patients with arteriovenous fistula were treated with ultra-high pressure balloon dilatation.Under fluoroscopy guidance the ultra high pressure balloon was used to dilate the stenosis.Preoperative preparation included psychological and routine care.Results Blood flow in all the 14 patients with hemodialysis was ≥ 250 ml/min,mean (270.00±27.33) ml / min.All patients were successfully completed the treatment,there were no angiorrhexis,bleeding,infection and embolism.Conclusion Careful nursing can promote the rehabilitation of patients,improve the effect of postoperative treatment.
5.Vaccine inoculation rate of hemorrhagic fever with renal syndrome in rural population and vaccination strategy in the Xi'an epidemic area
Yuan XING ; Chaofeng MA ; Zhenghua CAI ; Qinli LI ; Zhijun CHEN
Chinese Journal of Endemiology 2016;35(9):677-680
Objective To describe the vaccine inoculation rate of hemorrhagic fever with renal syndrome (HFRS) and the movement characteristics of rural population in the Xi'an epidemic area.Methods This was a cross-sectional study.The study covered all the four HFRS traditional high incidence areas (counties):Zhouzhi,Huxian,Chang'an and Lintong.Three villages were selected in each county and 20 households were selected in each village in 2013.Participants included all the persons of these families.People 16-60 years old were interviewed face to face about their sociodemographic and environmental information,and at the same time related HFRS vaccine history and characters of migrant workers were collected.Results Nine hundred and ninety-six persons were investigated,69.3 percent (690/996) were vaccinate-age population.Of all,49.0 percent (338/690) had HFRS vaccine history and 53.9 percent (372/690) had worked away from home most of the year.The inoculation proportion of workers which worked in their own counties (56.8%,67/118) were higher than that of workers worked outside (37.0%,60/162;39.1%,36/92,x2 =10.74,6.44,all P < 0.017).In the workers that went back home every week,60.3 percent (76/126) had vaccinated.Workers that went back home once a year had the lowest proportion of inoculation (16.7%,7/42).The morbidity of HFRS decreased significantly accompany with ascend of inoculation rate (Y =-0.524X + 38.319,t =-4.581,P < 0.05).Conclusions After the free vaccinations,there is still a gap between the vaccine inoculation rate and prevention benefit.The current vaccination strategies need to be adjusted.
6.Anti-apoptotic effects of cobalt proporphyrin-induced overexpression of heme oxygenase-1 in a mouse ;model of liver ischemia-reperfusion injury
Jing LI ; Jinzhen CAI ; Yu XING ; Guoliang ZHANG
Chinese Journal of Microbiology and Immunology 2016;36(8):561-565
Objective To investigate the anti-apoptosis effects of heme oxygenase-1 (HO-1) in a mouse model of liver ischemia-reperfusion ( IR ) injury and to analyze the possible mechanisms . Methods A cell model of hypoxia/reoxygenation injury was established after transfecting mouse liver AML12 cells with HO-1 small interfering RNA ( siRNA) . Real-time PCR and Western blot assay were performed to detect the changes of HO-1, B-cell lymphoma 2 (Bcl2) and caspase-3 at the cellular level. The mouse models of liver ischemia-reperfusion injury were established with/without pretreatments with cobalt proporphyrin (CoPP), CoPP+znic proporphyrin ( ZnPP) and/or ZnPP. The levels of aspartate transaminase ( AST) and alanine transaminase ( ALT) in serum samples were measured. Immunohistochemistry was used to analyze the chan-ges of caspase-3. Western blot assay was used to detect the expression of HO-1 and Bcl2 at protein level. The pathological changes of liver tissues were observed under light microscope. The apoptosis of hepatocytes was observed by using Tunel assay. Results Decreased expression of HO-1 and Bcl2 and increased expres-sion of caspase-3 were observed in the model of hypoxia/reoxygenation injury by pre-transfecting the AML12 cells with HO-1 siRNA. Compared with the IR injury group, the CoPP pretreatment group showed lower lev-els of AST and ALT (P<0. 05) and alleviated pathological damages in liver tissues. Moreover, the expres-sion of caspase-3 was inhibited, but the expression of HO-1 and Bcl2 were enhanced. Less apoptotic cells was detected by the Tunel assay (P<0. 05). However, these protective effects could be suppressed by adding ZnPP. Conclusion HO-1 has anti-apoptotic effects in the in vitro model of hypoxia/reoxygenation. CoPP can upregulate the expression of HO-1 and play the role of anti-apoptosis in a mouse model of liver is-chemia-reperfusion injury.
7.Application of CT perfusionimaging in assessing the physiological state of solitary pulmonary nodules
Ning XING ; Zulong CAI ; Shaohong ZHAO ; Li YANG
Chinese Journal of Tissue Engineering Research 2007;0(09):-
0.05); mean transit time was significantly lower but permeability surface area product higher than benign nodules (P 0.05). ③If the mean transit time ≤ 7 s was selected as cut-off value for malignant lesion, the sensitivity was 68.97%, specificity was 66.67%, accuracy was 68.49%, positive predict value was 88.89%, and negative predict value was 35.71%. When permeability surface area product ≥ 0.20 was selected as the cut-off value for malignant lesion, the sensitivity, specificity, accuracy, positive predict value, and negative predict value were 86.21%, 53.33%, 79.45%, 87.72%, and 50.0%, respectively. CONCLUSION: CT perfusion imaging is a valuable method for assessing the physiological state of solitary pulmonary nodules.
8.Thinking of Work on Sanitation Equipment Packaging
Wenrong XING ; Xin XUE ; Xin LI ; Yao CAI
Chinese Medical Equipment Journal 2003;0(12):-
To combine current situation and existing problem of sanitation equipment packaging in military area, perfect organization, special funds and package research of military special useful can be given. The high level of standardization, informationization and containerization of packaging has great significance that improves the ability to protection and pro-motes the development of sanitation equipment packaging on troops.
9.The mechanism through which low-intensity pulsed ultrasound promotes the differentiation of C2C12 myoblasts
Yalian ZHANG ; Bin SHU ; Zhong YANG ; Qian LI ; Xing CAI
Chinese Journal of Physical Medicine and Rehabilitation 2021;43(3):193-199
Objective:To observe the effect of low-intensity pulsed ultrasound (LIPUS) at different intensities on the expression of adiponectin and its receptors in C2C12 myoblasts, and to explore the potential mechanism by which LIPUS promotes the differentiation of C2C12 myoblasts.Methods:C2C12 myoblasts cultured in vitro were randomly divided into a control group and U 0.1, U 0.3 and U 0.5 groups. The control group received sham LIPUS exposure, while the U 0.1, U 0.3 and U 0.5 groups were exposed to LIPUS at intensities of 0.1W/cm 2, 0.3W/cm 2 or 0.5W/cm 2 respectively, and 1MHz for 5 min daily for 5 days. Cell viability was measured using CCK-8 assays. Fluorescence quantitative reverse transcription-polymerase chain reactions were used to detect the mRNA expression of adiponectin, adiponectin receptor 1 (adipoR1) and T-cadherin in the cells. Western blotting was employed to assess the protein expression of adiponectin, adipoR1, T-cadherin, adenosine monophosphate activated protein kinase (AMPK), activated phosphorylated adenylate-activated protein kinase (P-AMPK), embryonic myosin heavy chain (eMHC) and myogenin (MYOG). The differentiation ability of the 4 groups was measured using cell immunofluorescence chemistry. Results:After the intervention the cell viability in the U 0.1, U 0.3 and U 0.5 groups was significantly higher than in the control group. Compared with the control group, the average mRNA expression of adiponectin and the receptors of adipoR1 and T-cadherin were up-regulated significantly in the U 0.3 and U 0.5 groups. The average adiponectin, adipoR1 and T-cadherin protein expressions, and the AMPK phosphorylation level in the U 0.3 and U 0.5 groups had increased significantly compared with the control group, but all were significantly lower than in the U 0.3 group. The average protein expression of eMHC and MYOG, and the C2C12 myoblast fusion indices of the U 0.3 and U 0.5 groups were significantly higher the control group′s averages. Conclusions:LIPUS can promote the differentiation of C2C12 myoblasts. It is most effective at 0.3W/cm 2, administered for 5min/d at 1MHz with a 20% duty cycle. Its regulatory mechanism may be related to up-regulation of the expression of adiponectin, the adipoR1 and T-cadherin receptors, and the activation of AMPK phosphorylation in C2C12 myoblasts.
10.Characteristics of patients with hemorrhagic fever with renal syndrome in Xi'an
Jinsong LI ; Zhijun CHEN ; Tiejun HOU ; Zhenghua CAI ; Yuan XING
Chinese Journal of Infectious Diseases 2012;(12):740-743
Objective To describe the clinical features of patients with hemorrhagic fever with renal syndrome (HFRS) in popular period and other period.Methods All the HFRS patients from epidemic areas in Xi' an were surveyed retrospectively.The sociodemographic data,symptom characteristics and laboratory test results were collected.Chi-square test,rank test were used to analyze the data.Results Totally 429 HFRS cases were recruited including 280 male (65.3%) and the male/female ratio was 1.9 ∶ 1.Adults with 16-60 years of age were the main group,which accounted for 74.8% of the total cases.The constituent ratios of cases with 16-60 years of age in popular period and other period were 76.1% (245/322) and 71.0% (76/107),respectively; the sex ratios were 1.93∶1 and 1.74∶1,respectively; the time from fever onset to hospitalization was 3 d and 4 d,respectively; the time of hospitalization was both 10 d; the proportions of emergency cases were 59.8% (189/316) and 67.6% (71/105),respectively; the proportions of cured cases were 56.4% (181/321) and 43.4% (46/106),respectively.The clinical features were not significantly different between popular period and other period (all P>0.05).The immunoglobulin M (IgM) antibody positive rate was 85.4% (315/369) and those in popular period and other period were 88.4% (251/ 284) and 75.3% (64/85),respectively (x2 =8.968,P<0.01).There was a positive correlation between symptom severity and outcome of discharge (x2=18.558,P< 0.01),the more slight symptoms were related with the better outcome.Conclusion The clinical features are similar in cases from popular period and other period from Jan 2008 to Jun 2011.