1.Study on Clinical Influencing Factors of Serum Concentration of Digoxin
China Pharmacy 2007;0(26):-
OBJECTIVE:To analyze clinical influencing factors and monitoring results of serum concentration of digoxin (SDC) to provide reference for rational use of drug. METHODS: 137 medical records were collected and analyzed statistically with multiple regression analysis in order to study the relationship of SDC with influencing factors. RESULTS: SDC was significantly affected by dosage, height, body weight, free fat body weight, body surface area, creatinining clearance rate, serum creatinine (P
2.CT findings of desmoplastic small round cell tumor occurred in abdomen and pelvis
Chinese Journal of Radiology 2001;0(07):-
Objective To investigate the CT features of desmoplastic small round cell tumor (DSRCT)occurred in abdomen and pelvis.Methods The CT images of 4 patients with pathologically proven DSRCT occurred in abdomen and pelvis were retrospectively analyzed.Results The CT features common to the 4 DSRCT in abdomen and pelvis were as follows:the lobulated soft-tissue masses were very large;the masses often involved omental and serosal surfaces of abdomen and pelvis organ and had close relationship to the surrounding organs;the originating site of the tumors were not apparent;intratumoral hemorrhage or necrosis were often present;and contrast-enhanced CT scan showed mild to medium heterogeneous enhancement.Conclusion The CT features of DSRCT in abdomen and pelvis are rather specific and can provide helpful information to the clinical diagnosis.
3.The influences of three methods on determination of salivary alpha-amylase activity and its activity ratio from the saliva before and after citric acid stimulation
Zemin YANG ; Jing LIN ; Xiaorong YANG ; Longhui CHEN ; Weiwen CHEN
International Journal of Laboratory Medicine 2015;(11):1488-1490
Objective To compare the differences of salivary alpha(α) amylase (sAA) activity and its activity ratio from the sali‐va before and after citric acid stimulation and approach the correlations among sAA activity determined by the methods of iodine‐starch ,Bernfeld and EPS‐G7 velocity respectively .Methods Ten saliva samples were collected from five healthy volunteers before and after citric acid stimulation .Their activities were determined three times by the three methods ,and the variation coefficient (CV) of sAA activity and activity ratio were calculated .Moreover ,correlation among sAA activities determined by the three meth‐ods were analyzed .Results The significant differences (P< 0 .05) were found in sAA activity and total CV from three determined methods ,and sAA activity and total CV by the method of EPS‐G7 velocity were minimum .There were no significant differences (P> 0 .05) in sAA activities ratio and its CV ;Significant correlation was found between sAA activity determined by random two of three methods(P < 0 .05) ,and their correlation coefficients were above 0 .96 .Conclusion The sAA activity data determined by three methods could be transformed each other by regression equation ,and determined precision by the method of EPS‐G7 velocity is highest ,and data processing method of sAA activity ratio could decrease differences among CV from three methods .
4.Reliability and validity of the simplified Chinese version of the chronic oral mucosal disease questionnaire.
Lin WANG ; Xiaozhu YANG ; Fangchun CHEN
West China Journal of Stomatology 2014;32(6):584-587
OBJECTIVEThis study aims to evaluate the reliability and validity of the Chinese version of the chronic oral mucosal disease questionnaire (COMDQ).
METHODSUsing translation, back-translation, quality evaluation, cross-cultural adaptation, and pre-assessment, a Chinese version of the COMDQ was drafted. A 26-item instrument which comprised of four domains: pain and functional limitation, medications and side effects, social and emotional aspects, and patient support was designed and tested. This questionnaire was given to patients who visited our clinic. After the patients accomplished the questionnaires, we analyzed the collected data to evaluate the reliability and validity of the scale.
RESULTSA total of 130 patients were enrolled in our study. All the COMDQ questionnaires were completely filled out. The Chinese version of the COMDQ showed the following psychometric properties: Cronbach's alpha of 0.914, split-half reliability of 0.809, and correlation of 0.697. Factor analysis of construct validity demonstrated that the 26 items were classified into four domains, and the cumulative proportion was 67.62%. Thus, the scale had certain logical relation between the items in the same domains.
CONCLUSIONThe Chinese version of the COMDQ demonstrate good reliability and validity by rigorous psychometric properties. It can be widely used to test the oral health-related quality of life of patients with oral mucosal diseases.
China ; Humans ; Oral Health ; Psychometrics ; Quality of Life ; Reproducibility of Results ; Surveys and Questionnaires
5.Biologic treatments for hereditary diseases.
Jing YANG ; Yangli XIE ; Lin CHEN
Chinese Journal of Biotechnology 2015;31(6):968-975
Hereditary disease, especially monogenic disease is one of the major causes for malformation and disability of children. Most hereditary diseases have no effective therapy besides clinical symptomatic treatment. Biological techniques targeting casual genes or related signaling genes, such as transgenic, RNA interfere, genome editing, have been successfully applied in treating some hereditary diseases. However, most biological, treatments were carried out in animals, further confirmation of the effectiveness and safety of these therapies, and development of more therapeutic approaches based on mechanisms are needed before clinical trials.
Animals
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Biological Therapy
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Disease Models, Animal
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Genetic Diseases, Inborn
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therapy
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Genetic Therapy
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Humans
6.Catecholamines: Important Factors in the Increase of Oxidative Phosphorylation Coupling in Rat-liver Mitochondria during the Early Phase of Burn Injury
Lin YANG ; Xuemin WANG ; Kerning CHEN
Academic Journal of Second Military Medical University 1985;0(05):-
The respiratory control ratio (RCR), the rate of O2 consumption in state 3 and the rate of ATP formation of liver mitochondria succinate respiratory chain were increased 30 min after Sprague-Dawley rats were injected with epinephnne or norepinephrine. The rate of O2 consumption in state 4 was increased or slightly increased. When rats were injected with adrenergic blocking agents, timolol and phenoxybenzamine, 1 h before burn, the activities of succinate respiratory chain were partly inhibited 30 min post-burn. All the results suggest that catecholamines play a main role in the increase of oxidative phosphorylation coupling in the early phase of burn injury.
7.Effects of propofol combined with remifentanil on hepatic ischemia-reperfusion injury in cirrhotic rats
Jianzhen WANG ; He YANG ; Lin CHEN
The Journal of Clinical Anesthesiology 2014;(7):709-712
Objective To investigate the effects of propofol combined with remifentanil on he-patic ischemia-reperfusion injury in cirrhotic rats.Methods Sixty male SD rats of 260 to 300 grams were randomly divided into five groups(n=12):the sham-operated group(group S);the model con-trol group (group M);propofol group (group P);remifentanil group (group R);propofol combined with remifentanil group (group PR).In group M,P,R,PR,the hepatic arteries and veins of middle and left lobes were occluded for 20 min after 1 w hepatocirrhosis by using four principal factors,and group S went through an open surgery only.In groups P,R,and PR,porpofol (at a rate 20 mg·kg-1 ·h-1 for 1 h)、remifentanil (at a rate 1 μg·kg-1·min-1 for 1 h)and porpofol (at a rate 20 mg·kg-1· h-1 )combined with remifentanil(at a rate 1 μg·kg-1·min-1 for 1 h)was infused iv at 10 min before is-chemia,respectively.In group M,normal saline was infused iv at the same rate.Blood samples were taken at the end of 4 h reperfusion to determine serum AST,ALT activity.Meanwhile liver specimens were collected to assess Bcl-2 and Bax protein expression in liver cell and measuring the apoptosis in-dex(AI)of hepatic cell.The pathological change of liver was also examined.Results Compared with group S,the activity of AST,ALT,the expression of Bcl-2 and Bax and the apoptosis index(AI)of hepatic cell of the other groups all increased significantly(P <0.05);Compared with group M,the expression of Bcl-2 of groups P,R,PR significantly increased,and the activity of AST,ALT,the ex-pression of Bax and the apoptosis index(AI)of hepatic cell significantly decreased(P <0.05 );Com-pared with groups P and R,the expression of Bcl-2 of group PR significantly increased,and the activ-ity of AST,ALT,the expression of Bax and the apoptosis index(AI)of hepatic cell significantly de-creased(P <0.05);Microscopy and scanning electron microscopy showed that,for groups P,R,PR, pathological injury of liver tissue significantly reduced compared with group M.Conclusion Propofol combined with remifentanil can reduce the hepatic ischemia-reperfusion injury in cirrhotic rat by regu-lating Bcl-2 and Bax protein expression and inhibiting apoptosis.The effect is much more enhanced when they are used in combination than individuals.
8.Expression of S-phase kinase associated protein 2 in liver tissues of rats with acute liver failure
Zhejuan YANG ; Yongping CHEN ; Hailong LIN
Chinese Journal of Infectious Diseases 2009;27(8):461-464
Objective To investigate the expression of S-phase kinase associated protein 2 (Skp2) in rats with acute liver failure (ALF) and its significance. Methods There were 256 male SD rats used in this study, among which 240 were injected with D-galactosamine (D-GaIN) to set up ALF model. The rats were divided into 3 groups: ALF model group, free hepatocellular transplantation group, microencapsulated hepatocyte transplantation group, which were intraperitoneally injected with 2 mL of RPMI 1640 culture medium, free hepatocellular suspension and microencapsulated hepatocyte suspension, respectively. The other 6 rats were in control group and the rest 10 rats were used for hepatocyte isolation. Expressions of Skp2 protein in hepatocytes of rats at different time points were detected by immunohistochemical technique. Levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and total bilirubin (TBil) were detected by automatic biochemistry analyzer. The survival rate in each group was observed. Comparisons among groups were done using one-factor analysis of variance. Results Levels of ALT, AST and TBil decreased more significantly by intraperitoneal transplantation of microencapsulated hepatocytes than those by intraperitoneal transplantation of free hepatocytes (P<0. 05). Skp2 labeling indices after 36 h of injection in ALF model group, free hepatocellular transplantation group and microencapsulated hepatocyte transolantation grouo were (28. 2±6.1) %, (41.4± 10. 5) % and (68. 0±10.8) %, respectively (F=29. 08 , P<0. 05). There were 4, 6 and 11 out of 15 rats survived in the 3 groups, respectively. Conclusion The dynamic observation of Skp2 expression could be used to judge the regeneration of hepatocytes.
9.Application of Remote Blood Pressure Monitoring and Health Guidance in Community Hypertension Management
Peisen LIN ; Yanming YANG ; Dongri CHEN
Modern Hospital 2017;17(5):700-702
Objective To explore the application value of remote blood pressure monitoring and health guidance management model in community hypertension patients.Methods 200 hypertension patients were selected from community health service institution between June 2013 and June 2016, and averagely divided into two groups by random number table, 100 cases in each group.The control group was given routine guidance, and the study group was given the remote blood pressure monitoring and online health guidance.The two groups were compared in terms of hypertension knowledge rate and compliance rate, control rate of blood pressure, physical indicators before and after management, including systolic blood pressure (SBP), diastolic blood pressure (DBP), body mass index (BMI), serum creatinine (SCr), triglyceride (TG) and fasting blood glucose (GLU).Results The hypertension knowledge, treatment compliance rate and blood pressure control rate in the study group were 85%, 98%, 86%, and significantly higher than that of 68%, 82%, 57% (P<0.05) in the control group.Compared to the former management, the SBP, DBP, GLU and SCr of the two groups were significantly decreased, and the study group decreased more significantly (P<0.05).But there were no significant differences in BMI (P>0.05) between the two groups.Conclusion The remote blood pressure monitoring and online health guidance is useful for community hypertension patients.Hypertension knowledge awareness, medication compliance and blood pressure control rate are improved significantly, meanwhile, the patients physical examination indexes can be promoted.
10.Basic fibroblast growth factor induces the differentiation of human bone mesenchymal stem cells into cardiomyogenic cells in vitro
Lin YANG ; Lianfeng CHEN ; Ti SHEN
Basic & Clinical Medicine 2006;0(05):-
Objective To study the potential of bFGF to promote human bone marrow derived MSCs to differentiate into cardiomyogenic cells, and its effect on proliferation of MSCs. Methods MSCs isolated from adult human bone marrow were cultured in four different systems. Group A: medium with 5-aza. Group B: medium with bFGF. Group C: medium with 5-aza+bFGF. Control group: medium alone. The morphological changes of MSCs were observed. Then immunocytochemistry staining against ?-actin,cTnT,and Connixin43 was performed. The expression of Nkx2.5, GATA-4 and cTnT was detected by semi-quantitative RT-PCR. The proliferation of MSCs in different groups was measured by MTT. Results The MSCs in both group A and C partially differentiated into myogenic cells and expressed proteins of ?-actin,cTnT,and connixin43. In group A and group C, the mRNA level of Nkx2.5,GATA-4 and cTnT was higher than that of control group. In group B, mRNA level of Nkx2.5 and GATA-4 was higher than that of control group. As compared with the control group, cell proliferation was faster in group B than in group A and C. And the proliferation was faster in group C than in group A. Conclusion bFGF can promote the proliferation of MSCs significantly. When combining with 5-aza, bFGF can promote MSCs to differentiate into cardiomyogenic cells more effectively.