1.Distributive retrieval methods of special medical resources on foreign navy networks
Chinese Journal of Medical Library and Information Science 2015;(6):37-41
The significance of distributive retrieval methods of special medical resources on foreign navy networks was analyzed from the development of medical information resources and the value of medical information on foreign navy networks followed by a description of key words retrieval method, classification engine retrieval method, and link retrieval method of resources on foreign navy networks in order to speed up the development of navy special medical literature in China .
2.Progress of Th17 cells in chronic rhinosinusitis.
Yang WANG ; Zhenzhen TANG ; Dongfang YAO
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2016;30(2):161-166
Chronic rhinosinusitis is a common disease and frequently encountered disease in otolaryngology, but the therapeutic effect is not ideal. While its pathogenesis is exploring in the continuously. Found in the recent years, Th17 cells are a new subset of T cells and closely related with inflammatory disorders, autoimmune diseases and cancer. Its differentiation, regulation and biological effects are widely noted as a hot area of research. This review explores the discovery of differentiation and regulation of Th17 cells, the relationship between related cytokines and chronic rhinosinusitis, in order to have a beteer knowledge of chronic rhinosinusitis. This review regards Th17 cells as the main clue, nevertheless, lacking consideration of the impacts of other factors on chronic rhinosinusitis.
Chronic Disease
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Humans
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Rhinitis
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immunology
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Sinusitis
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immunology
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Th17 Cells
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immunology
3.The influence on smoking and drinking status of officers and soldiers after health management
Zhenzhen WANG ; Xianrong LUO ; Xuan YANG ; Jun YANG ; Shaen LI
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(3):261-263
Objective To investigate the influence of smoking,drinking cognition and behavior among the officers and soldiers in South China War Zone after health management,and to explore the establishrent of appropriate health management model for the army.Methods Harmfulness cognition,rate,quantity,types of drinking and smoking were investigated and analyzed before and after health management among 1 102 officers and soldiers in South China War Zone by providing a set of health education,psychological counseling service,disease and lifestyle intervention of health management as a whole.Results The harmfulness cognition rate of smoking and drinking raised from 95.6% and 94.1% to 98.7% and 97.8%,the smoking and drinking rate dropped from 64.7% and 72.6% to 37.2% and 61.4% after health management.The x2 values were 18,18.9,153,20.8,and had significant difference (P<0.001).The rate of occasional smoking,a small amount of smoking,often smoking dropped from 28.3%,25.8%,45.9% to 18.5%,12.2%,31.5% as well as the rate of occasional drinking,a small amount of drinking,often drinking has dropped from 56.6%,32.3%,11.1% to 49.8%,23.4%,4.1%.The x2 values were 26.8,62.1,31,9.61,8.06,19.4,and had significant difference (all P<0.01).Conclusion The health management improves the harmfulness cognition of smoking and drinking,and decreases the rate and quantity of smoking and driking.It has a positive effect on improving the heahh literacy and developing health way of life in officers and soldiers.
4.Preparation of rivastigmine liposome and its pharmacokinetics in rats after intranasal administration.
Zhenzhen YANG ; Zhanzhang WANG ; Kai WU ; Xianrong QI
Acta Pharmaceutica Sinica 2011;46(7):859-63
To prepare rivastigmine liposome, rivastigmine was loaded into liposome via ammonium sulfate gradient method. Its pharmacokinetic profile in rats was evaluated after intranasal administration. The size, zeta potential, entrapped efficiency and release of rivastigmine from the liposome in vitro were determined. Plasma concentration of rivastigmine was determined by high performance liquid chromatography-tandem mass spectrometry (HPLC/MS) using antipyrine as internal standard. The pharmacokinetic parameters were calculated by DAS 2.0. The entrapped efficiency of rivastigmine liposome was (33.41 +/- 6.58) %, with the mean diameter of 154-236 nm and zeta potential of (-10.47 +/- 2.41) mV. The release behavior of rivastigmine was fitting the first order equation in vitro. The pharmacokinetic studies indicated that the C(max), T(max) and AUC(0-infinity), of rivastigmine liposome were (1.50 +/- 0.15) mg x L(-1), 15 min and (89.06 +/- 8.30) mg x L(-') x min, respectively. Rivastimine liposome was absorbed rapidly, and could reach a certain concentration in rat plasma after intranasal delivery.
5.Changes in expression of DJ-1 protein during myocardial ischemia-reperfusion in diabetic rats
Yao YAO ; Zhongyuan XIA ; Zhenzhen LIU ; Yang WU ; Bo ZHAO
Chinese Journal of Anesthesiology 2013;33(6):661-664
Objective To evaluate the changes in the expression of DJ-1 protein during myocardial ischemia-reperfusion (I/R) in diabetic rats.Methods Fifty male Sprague-Dawley rats,weighing 220-280 g,were used in this study.Type 1 diabetes mellitus was induced by intraperitoneal streptozotocin 65 mg/kg and confirmed by fasting blood glucose > 16.7 mmol/L.Forty animals with type 1 diabetes mellitus were randomly divided into 3 groups:diabetes group (group D,n =10),diabetic sham operation group (group DS,n =15) and diabetic I/R group (group DIR,n =15).Another 10 non-diabetic rats in which citrate buffer 6 ml/kg was injected intraperitoneally were served as control group (group C).Myocardial I/R was produced by occlusion of the anterior descending branch of left coronary artery for 30 min followed by 120 min reperfusion in group I/R.At 120 min of reperfusion,5 rats were sacrificed and myocardial specimens were c(on)tained for determination of infarct size in groups DS and DIR,and 10 rats were sacrificed and myocardial specimens were obtained for microscopic examination and for determination of cell apoptosis,malondialdehyde (MDA) content,superoxide dismutase (SOD) activity and expression of DJ-1 and phosphatase and tensin homologue (PTEN) protein.Apoptotic index (AI) was calculated.Linear correlation between the expression of DJ-1 protein and MDA content,SOD activity,AI and expression of PTEN protein was analyzed.Results Compared with group DS,the myocardial infract size was significantly increased in group DIR (P < 0.05).Compared with group C,MDA content and AI were significantly increased,SOD activity was decreased,the expression of DJ-1 was down-regulated,and the expression of PTEN protein was up-regulated in groups D,DS and DIR (P < 0.05).Compared with groups D and DS,MDA content and AI were significantly increased,SOD activity was decreased,the expression of DJ-1 was down-regulated,and the expression of PTEN protein was up-regulated in group DIR (P < 0.05).There was no significant difference in the parameters mentioned above between groups D and DS (P > 0.05).There was linear correlation between the expression of DJ-1 protein and MDA content,SOD activity,AI and expression of PTEN protein and the correlation coefficients (r) were-0.734,0.593,-0.818,and-0.812 in turn.Conclusion Down-regulation of DJ-1 protein expression is involved in myocardial I/R injury in diabetic rats via decreasing anti-oxidative stress responses and upregulating PTEN protein expression.
6.An analysis of serum levels of cytokines and relative factors in depression patients
Chuanxin LIU ; Lili HAN ; Zhenzhen YANG ; Qian YUAN
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(9):801-804
Objective To explore the serum levels of cytokines in patients with depression and their correlations with sex,age,depression severity and anxiety severity.Methods After enrolling subjects into the corresponding patient group and control group,the same trained researcher should continue to collect general information of the enrolled subjects as well as the HAMA and HAMD scoring results collection and assessment;And the serum levels of interlukin-1β (IL-1β),interlukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were detected with the method of enzyme-linked Immuno-sorbent assay (ELISA) in two groups.Results ① The serum levels of IL-1β,IL-6 and TNF-α of depression group were significantly higher than these in control group (P<0.05),which were ((5.45±3.60) pg/ml vs(2.63± 1.92) pg/ml,(5.09±3.74) pg/ml vs (3.83±2.71) pg/ml,(5.77±3.94) pg/ml vs (4.05±3.25) pg/ml) respectively.②There was no significant difference in serum levels of IL-1 β,IL-6 and TNF-α between male and female patients with depression (P>0.05).③ No conspicuous differences were found between the young group and the middle-aged group in serum levels of IL-1β,IL-6,TNF-α (P>0.05).④ Serum level of IL-6 in major depressive disorder group((6.24±4.68) pg/ml) was more higher than that in mild to moderate depression group((3.95± 1.97)pg/ml),and the difference was statistically significant (t=2.467,P<0.05).⑤There was significant differences in serum level of IL-6 between two groups,which were depression patients with and without anxiety (separately(5.80±4.37) pg/ml vs(3.87±1.80) pg/ml) (t=2.397,P<0.05).Conclusions ①There is a phenomenon of immune activation,and levels of blood cytokines are raised in patients with depression.②Age and gender have no impact on depression in the level of cytokines.③IL-6 may be an important biological index that reflected the severity of depression and anxiety.
7.To explore learning burnout and professional commitment of nursing students studying at the traditional Chinese medicine college
Jinghua MA ; Zhenzhen ZHANG ; Rongfang YANG ; Huiling FENG ; Hui WANG
Chinese Journal of Practical Nursing 2014;30(27):31-33
Objective To explore learning burnout psychology and professional identity of nursing students studying at the traditional Chinese medicine college.Methods 200 students were surveyed by learning burnout and professional commitment scale.Results Learning burnout level of nursing students was higher,depression scores were the highest in four dimensions.Professional commitment kept within medium level.The professional identity was low.The inheritance commitment score was the lowest in each dimension analysis.Conclusions Schools and teachers should take corresponding measures to improve professional commitment level,so as to reduce learning burnout level and ensure long-term stable development of nursing profession.
8.Influence of thoracic duct ligation on lipid metabolism after esophagectomy
Yongheng ZHANG ; Bo YANG ; Zhenzhen YUAN ; Quan CHEN
Chinese Journal of General Practitioners 2009;8(12):880-883
Objective To explore influence of thoracic duct ligation on lipid metabolism after esophagectomy. Methods Seventy-four patients with esophageal cancer received esophagectomy were divided into two groups by their thoracic duct ligation, 39 in ligation group and 35 in non-ligation group. All the patients were fed with nutrients through nasal-duodenal tube placed during operation from the 1 st day to the 8th day after surgery, and started taking liquid diet on the 6th day. Blood specimens were collected from the patients on the 1st day after admission, the 9th day, one month and three months after surgery,respectively for biochemical analysis,including determinations of total cholesterol(TC),triglyeeride(TG),high-density lipoprotein-cholesterol ( HDL-C) and low-density lipoprotein-cholesterol ( LDL-C) . Databetween the two groups were compared with statistical analysis. Results No significant difference in plasma levels of TC, TG and HDI.-C was found between the two groups at varied time points. Plasma level of LDL-C in the ligation group significantly decreased on the 9th day after surgery, as compared with that in the nonligation group ( P < 0. 05), and went down to the lowest level one month after surgery. Conclusions Chylomicron was blocked to enter blood stream and production of LDL-C decreased by thoracic duct ligation,which affect lipid absorption and metabolism leading to poor early nutrition in patients with esophagealsurgery due to slower establishment of collateral circulation.
9.The analysis of heparin lithium interference in turbidimetric method to detect total protein
Quanneng ZHAO ; Zhenzhen YANG ; Zhengyu WAN ; Duofu LI
International Journal of Laboratory Medicine 2016;(3):364-366
Objective To confirm the interference effect of heparin lithium on turbidimetry method for detecting total protein , and to conduct performance evaluation of it .Methods Eight different concentrations of total protein urine specimen with and with ‐out heparin lithium were detected respectively ,to confirm the interference of heparin lithium on the experiment .Adding different concentration of heparin lithium solution to the prepared total protein samples with concentration of 0 .172 ,0 .427 g/L(a series of interference experiment samples ,with heparin lithium concentrations of 0 .000 ,0 .025 ,0 .030 ,0 .035 ,0 .040 ,0 .045 ,0 .050 mg/L ) , repeat four times detection ,and then conduct the dose‐effect experiment of interference .Results The biggest bias of the testing re‐sults in the two paired samples was 159 .37% ,the mini‐bias was 11 .37% ,the difference of the results in two groups was statistical significant(t= 17 .24 ,P< 0 .05) .95% confidence interval of the interference effect in the total protein samples with concentration of 0 .172 g/L was 0 .034 ~ 0 .062 ,while in the total protein samples with concentration of 0 .427 g/L was 0 .043 - 0 .053 .When the heparin lithium were 0 .025 mg/mL and 0 .050 mg/mL respectively ,the results of bias of the total protein samples with concentra‐tion of 0 .172 g/L were 27 .33% ,58 .14% respectively .But in the 0 .427 g/L total protein samples ,the results of bias were 11 .24% 、18 .74% respectively .Dose effect of interference both showed a linear relationship in the series concentration of the hepa ‐rin lithium and interference of sample of 0 .172 g/L and 0 .427 g/L ,and the linear equations were Y = 1 .974X - 0 .001 03 ,Y = 1 .599 X - 0 .000 5 respectively .Conclusion Heparin lithium is the exogenous interfering substance to the detection of total protein in tur ‐bidimetry method ,it is the positive interference to the determination results of total proteins ,especially for the low level of total pro‐tein detection ,and as heparin lithium concentration increases ,the stronger the interference effect .
10.Application of HC-videolaryngoscopy in nasotracheal intubation for patients with predicted difficult airway undergoing oral maxillofacial surgery
Xudong YANG ; Ruichang LIU ; Ling GAO ; Zhenzhen LI ; Xiaodong WANG
Journal of Practical Stomatology 2015;(6):833-836
Objective:To investigate the efficacy of HC-videolaryngoscopy in nasotracheal intubation for patients with predicted diffi-cult airway undergoing oral maxillofacial surgery.Methods:70 patients undergoing oral maxillofacial surgery with predicted difficult airway were enroled and randomly divided into 2 groups(n =35).Nasotacheal intubation was performed with HC-videolaryngoscopy (group VL)and Macintosh laryngoscopy(group ML)respectively.The duration and success rate of intubation,degree of glottis expo-sure,hemodynamic response as well as intubation related complications were evaluated.Results:There was higher success rate of first attempt(P <0.05),shorter intubation duration(P <0.05)and fewer frequency of multiple intubation(P <0.05)in group VL than in group ML.During intubation,the first and the best Cormack-Lehane laryngeal view was better in group VL(P <0.05)and less intuba-tion assistance was required in group VL(P <0.05).1 3 patients in group ML were intubated with VL after failure of the first attempt with ML.Conclusion:HC-videolaryngoscopy is safe and effective in the nasotracheal intubation for the patients with predicted difficult airway undergoing oral maxillofacial surgery.