3.Study on challenge dose of pigeon paramyxovirus type 1 (Chuansha strain).
Jun-Ping ZHANG ; Hui-Ping YANG ; Feng-Ying JIANG ; Jian-Ping NI ; Chun-Hua LI
Chinese Journal of Virology 2014;30(2):177-179
In order to determine the challenge dose of pigeon paramyxovirus type 1 (PPMV-1) inactivated vaccine (S-1 strain). The virus titer of PPMV-1 E5 allantoic fluid (Chuansha strain) was determined using SPF chicken embryos in this research. After inoculating 30-day-old and 120-day-old pigeons with low-HI antibody against PPMV-1 (HI antibody < or =2) with different doses of PPMV-1 (Chuansha strain), the clinical symptoms and histopathological lesions of the challenged pigeons were examined. The results showed that the minimal lethal dose (MLD) of PPMV-1 (Chuansha strain) was 102.5 ELD50, so we determined that 10(5.5) ELD50, which was 1000 times the MLD, could be taken as the challenge dose in the vaccine efficacy test for PPMV-1 inactivated vaccine (S-1 strain).
Animals
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Antibodies, Viral
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immunology
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Bird Diseases
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immunology
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mortality
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virology
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Chick Embryo
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Columbidae
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immunology
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virology
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Newcastle Disease
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immunology
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mortality
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virology
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Newcastle disease virus
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immunology
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pathogenicity
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Phylogeny
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Viral Vaccines
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immunology
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Virulence
4.Application of Nvivo software in qualitative nursing research:a bibliometric analysis
Li ZHENG ; Dan YANG ; Ping JIANG ; Wei WANG
Chinese Journal of Practical Nursing 2016;32(26):2076-2080
Objective To explore the application status of Nvivo software in qualitative nursing research and compare the difference between overseas and domestic publications. Methods Six databases were searched and finally 159 qualitative nursing articles were analyzed, the information such as year, region, institution, literature source, impact factor, fund support, theme, theory attachment, analytical approach, data collection approach, function utility were used to included. From inception to January 31, 2016. Results It was found that up to 21%(21/100)publications were from Australia, and up to 18.64%(11/59)publications were from Shanghai in the past 15 years. Responsible institutions were mainly college and hospital. 54.24% of these domestic papers had no fund support, and 78 % of these overseas papers had no fund support. Themes of overseas papers were more various than those of domestic. The utility of Nvivo software overseas proved to be more systematic and deeper. Conclusions The quantity and quality of relevant publications increase dramatically in China in recent years, nevertheless, wider and deeper usage of Nvivo function should be explored deeply. Qualitative nursing researchers should take advantage of benefits of Nvivo, build a holistic view and generalize its comprehensive application.
5.Application of early enteral nutrition for patients with carcinoma of esophagus after operation
Yongkang YU ; Jianqing JIANG ; Yifeng ZHENG ; Lie YANG ; Ping MAO
Parenteral & Enteral Nutrition 1997;0(04):-
Objective: To review the clinical effect of early enteral nutrition in patients with carcinoma of esophagus after operation.Methods: Nutrient canal was indwelt through Fresubin(TP) was given through the nasal-intestinal tube in 120 cases with carcinoma of esophagus after operation.Results: The complications such as anastomotic leakage,lung infection and incisional infection in the patients receiving early enteral nutrition were much less than those in control group.No death occurred.The time for bowel function recovery was much shorter.Conclusion: Early enteral nutrition can promote the recovery of gastrointestinal function,improve the nutrition,decrease the occurrence of complications and raise the successful rate of operation in operative patients with esophagus carcinoma.
6.Plasmakinetic enucleation of the prostate: the complication and outcome according to the prostate size
Jianming RAO ; Yixin REN ; Jiang HE ; Jinghua YANG ; Ping DING
Journal of Chinese Physician 2016;18(4):557-561
Objective To evaluate surgical complications and outcomes based on prostate size in patients with benign prostatic hyperplasia (BPH) treated with plasmakinetic enucleation of prostate (PKEP).Methods A retrospective review was conducted of PKEP performed in 326 patients with BPH.According to the prostate size on preoperative transrectal ultrasonography measurement,patients were divided into three groups:groupl:<40ml (n =92),group2:40~80ml (n =155),and group3:>80ml (n =79).Intraoperative and perioperative parameters were evaluated.Patient perioperative data and postoperative outcomes were compared.Patients were followed up at 1,3,6 and 12 months after surgery.Early and late complications were recorded.Results There were significant differences among three groups regarding the mean operative time (P < 0.01) and the mean resected tissue weight (P < 0.01).However,enucleation efficiency (P < 0.01) in gm tissue per minute increased significantly as prostate size increased.Mean hemoglobin decrease (P >0.05),mean serum sodium decrease (P >0.05),mean postoperative irrigation time (P > 0.05),mean catheter time (P > 0.05) and mean hospital stay (P >0.05) did not differ significantly among three groups.Three groups had a similar and significant postoperative improvement in international prostate symptom score (IPSS),quality of life (QOL),maximum urine rate (Qmax),and post-void residual urine volume(PVR) independent of prostate size (P < 0.01),but no significant difference was found among three groups during 1,3,6 and 12-month follow-up (P > 0.05).Perioperative and postoperative complications did not depend on prostate size (P > 0.05).Conchsions Although patients with a larger BPH required significantly longer operation time in PKEP,prostate size did not affect perioperative and postoperative complications or micturition improvement.
7.Hypofraction radiotherapy by helical tomotherapy for unresectable but confined intrahepatic hepatocellular carcinoma is efficient and safe in comparison with conventional 3-dimension conformal radiotherapy
Tao JIANG ; Zhaochong ZENG ; Ping YANG ; Yong HU
Chinese Journal of Radiation Oncology 2016;25(6):588-592
Objective To evaluate the safety of helical tomotherapy (HT) for hepatocellular carcinoma confined to the liver,and to investigate the efficacy of HT by comparison with three-dimensional conformal radiotherapy (3DCRT).Methods In June 2011,hypofractionated HT was performed in 35 patients with unresectable hepatocellular carcinoma confined to the liver who had no distant metastasis or tumor thrombosis.The dose in each fraction increased from 2.4 Gy to 5.0 Gy with a median dose of 3.2 Gy.The median dose for the total treatment was 50.0 Gy.Within the same period,45 patients received conventionally fractionated 3DCRT with a median dose of 54.0 Gy.The adverse reactions,clinical outcomes,and survival time were compared between the two groups.The survival rate was calculated with Kaplan-Meier method,and log-rank test was used to estimate statistical significance of survival differences.Multivariate analysis of survival was carried out with Cox' s regression model.Results There were no significant differences in adversc reactions between the two groups.The objective response rate was significantly higher in the HT group than in the 3DCRT group (60% vs.33%,P=0.024).There was no significant difference in the disease control rate between the two groups (94% vs.89%,P=0.459).The HT group showed significantly higher 1-,2-,and 3-year overall survival rates than the 3DCRT group (97% vs.80%,P=0.025;81% vs.55%,P =0.008;67% vs.50%,P =0.048).The multivariate analysis indicated that tumor smaller than 8 cm,transarterial chemoembolization before radiotherapy,and HT were associated with improved survival (P=0.005;P =0.000;P=0.002).Conclusions HT shows an advantage in precise treatment of hepatocellular carcinoma confined to the liver.With acceptable toxicity,hypofractionated HT shortens the treatment duration and improves the survival in patients.
8.Analysis of related factors for pacemaker pocket infection in elderly patients after implantation of permanent pacemakers
Sujuan QIAN ; Deye YANG ; Fan JIANG ; Xuezhen LEI ; Ping YU
Chinese Journal of Geriatrics 2014;33(6):582-584
Objective To analyze related factors for pacemaker pocket infection in elderly patients after implantation of permanent pacemakers and to provide a theoretical basis for preventing pacemaker pocket infection.Methods Pacemaker pocket infection and related factors were analyzed for 412 patients who received implantation of permanent pacemakers from Apr.2010 to Jun.2013 in the Department of Cardiology.Results With 5 cases of pacemaker pocket infection,the rate of infection was 1.2%.The infected patients were older than the uninfected patients [(74.5±4.2) years vs.(60.3±6.6) years,t=4.781,P<0.01].The rate of infection was higher in patients who had undergone operations twice or more than in patients who had undergone one operation [10.0% (3/300) vs.0.5% (2/382),x2=10.583,P<0.01].The rate of infection was higher in patients with the operation lasting 2 hours or longer than in patients with the operation time shorter than 2 hours [(3.8% (4/106) vs.0.3% (1/306),x2=7.802,P<0.01].The rate of infection was higher in patients with pocket hematoma than in patients without pocket hematoma [16.7% (3/18) vs.0.5%(2/394),x2=37.492,P<0.01].Independent risk factors for pacemaker pocket infection included pocket hematoma (OR=6.193),number of operations≥2 (OR=2.594),operating time≥2 hours (OR=2.265) and age of 75 years or older (OR =2.193).Conclusions Pocket infection after implantation of permanent pacemakers is related to pocket hematoma,number of operations,operating time and age.
9.Clinical analysis and intervention strategies in 67 cases of pregnancy complicated with heart failure
Yong WANG ; Chun YANG ; Ping TANG ; Jing JIANG
Chinese Journal of General Practitioners 2012;11(5):375-376
To explore the clinical characteristic and intervention strategies for pregnancy complicated with heart failure. The clinical data of 67 pregnant women with heart failure during January 1998 to December 2010 were collected and analyzed.The rate of heart failure in pregnancy with heart diseases was 31% (67/216).The causes of pregnancy complicated with heart failure were peripartum cardiomyopathy ( n =33,49% ) and hypertensive disorder complicating with pregnancy heart disease( n =28,42% ).Heart failure in pregnancy appeared at an average of (36.0 ± 2.7 ) weeks.The average terminating time of pregnant women with heart failure was ( 36.5 ± 2.1 ) weeks.Cesarean section was the main safe choice of delivery for pregnant women with heart failure.The average weight of newborns for pregnant women with heart failure was(2517 ±541 )g.The rate of neonatal asphyxia was 22% (11/50).Strengthening routine antenatal examination and treating pregnant complications timely can prevent and reduce the incidence of heart failure.
10.Effect of phosphodiesterase inhibitor Ro 20-1724 on social interaction ability of developing rats after repeating ketamine anesthesia
Ping JIANG ; Sheng PENG ; Xia YANG ; Haiyan SUN
Chinese Journal of Behavioral Medicine and Brain Science 2012;(11):961-963
Objective To observe the effect of Ro 20-1724 on social interaction ability of developing rats after repeated ketamine anesthesia.Methods 32 rats with 21 days old were randomly divided into four groups,control group (C group),ketamine group (K group),ketamine + Ro 20-1724 group (K + R group),ketamine + ethanol group (K + E group).Ethanol was used as a solvent of Ro 20-1724.Ketamine 70 mg· kg-1 was intraperitoneal injected,30 min later,to give or not give Ro 20-1724 0.5 mg · kg-1 or equivalent ethanol solvent for once each day for seven consecutive days.Then the rats were fed for three days.On the fourth day after the last administration,the social interaction ability were assessed in all rats.The expression of brain-derived neurotropic factor (BDNF) in hippocampal CA1 region was detected using conventional ELISA.Results Comparing with rats in C group,the time spent on the cage of lifeless body ((60 ± 29) min vs (109 ± 33) min,P < 0.01),unfamiliar rats (103 ±35)min vs (151 ±42)min,P<0.01;((123 ±34)min vs (184 ±46) min,P<0.05) and familiar rats (89 ± 25) min vs (140 ± 38) min,P < 0.01) in the social interaction test was significantly less in K group.The time spent significantly prolonged in group K + R,comparing with K group (lifeless body:(94 ± 34) min vs (60 ±29) min,P<0.01) ;unfamiliar rat 1:(140 ±41) min vs (103 ±35)min,P<0.05) ;unfamiliar rat 2:(171 ±45)min vs (123 ±34)min,P<0.01) ; familiar rat:(133 ±35)min vs (89 ±25) min,P<0.01).And there was no difference between K group and K + N group (P > 0.05).The expression of BDNF in hippocampal CA1 region was significantly lower in K group,comparing with C group ((8.6 ± 2.7) ng/ml vs (11.8 ± 2.4) ng/ml,P <0.01) ; and there was a significant increase in K + R group,comparing with K group ((10.1 ± 3.6) ng/ml vs (8.6 ± 2.7) ng/ml,P < 0.05).Conclusion Ro 20-1724 significant rescued social interaction impairment induced by ketamine anesthesia in developing rats.And BDNF in hippocampal CA1 region contribute to the reversal process.