1.Preparation and Quality Control of Compound Rifampicin Auristilla
China Pharmacy 2005;0(15):-
OBJECTIVE:To prepare compound rifampicin auristilla and to establish a method for its quality control.METHODS:The content of rifampicin was determined by HPLC and the sample was stored under the temperature of(6?2)℃for6months.RESULTS:The linear range for rifampicin was6~60?g/ml,the average recovery was100.33%(RSD=1.23%).The appearance,pH value and contents of the preparation were in conformity with the requirements after storage for6months.CONCLUSION:This preparation method of compound rifampicin auristilla is simple and cheap,and its quality is controllable.
2.The Use of Psychological Intervention in Modified Electroconvulsive Therapy Patients
Journal of Medical Research 2006;0(05):-
Objective The purpose of the present study was to explore the use of psychological intervention in modified electroconvulsive therapy patients.Methods Divide all 160 patients random into two groups,the intervened group and the contrast group. The intervened group was accepted psychological intervention before the therapy day;The contrast group just did as normal.Record the anxiety, blood pressure,heart rate and the agreement to the therapy of the two group before the therapy.Results The anxiety of the intervened group was much little to the contrast group.The blood pressure and the heart rate of the intervened group was lower than the contrast group.Patient of the intervened group was much active to match with the treatment. Conclusions The use of psychological intervention in modified electroconvulsive therapy patients could decrease patient’s anxiety and painness,made them more active to match with the treatment.
3.Recent advances in the study of angiotensin converting enzyme 2
Chinese Journal of Pathophysiology 1999;0(09):-
Angiotensin converting enzyme 2 (ACE2) is a new member of renin-angiotensin system found recently. It counterbalances the effects of angiotensin converting enzyme (ACE), hydrolyzes angiotensin Ⅱ to generate angiotensin-(1-7) and hydrolyzes angiotensin Ⅰ to produce angiotensin-(1-9). Angiotensin-(1-9) can be hydrolyzed by ACE to form angiotensin-(1-7), and angiotensin-(1-7) counteracts the effects of angiotensin Ⅱ in many aspects. Bradykinin or atrial natriuretic factor or substance P are not the substrates of ACE2, and ACE2 hydrolyzes the metabolites of bradykinin such as des-Arg~9-BK and des-Arg~(10)-kallidin, and also the dynorphin A, one of the opium peptides. ACE2 is not inhibited by angiotensin-converting enzyme inhibitor (ACEI). Recent studies demonstrate that ACE2 is a functional receptor of SARS coronavirus. To elucidate the mechanisms of cardiovascular diseases and other disease such as SARS, further investigations in ACE2 are needed.
4.A survey of nonmedical students’satisfaction with their major at medical colleges
Chinese Journal of Medical Education Research 2005;0(06):-
Objective: To evaluate the satisfaction degree of non-medical students in medical school,and to investigate the factors that influence satisfaction degree. Method: Selfcompile scale is administered to 430 nonmedical students from 6 medical colleges,in which 5 is in Guangdong province and 1 is in Ha’erbin city. Result:The satisfaction of nonmedical students is low,significant diferences are found between grades,and between students with medicine as the first choice major and those whose first choice major is not medicine. Conclusion:Medical colleges should pay more attention to nonmedical majors,improve the quality of teaching,and so on in order to improve the nonmedical students’satisfaction degree.
5.Effects of the Mixture of Ferulic Acid and Paeoniflorin on PC12 Cells Injury
Lijun MA ; Zhenhua MIAO ; Wei MA
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(02):-
Objective To observe the protective effects of the mixture of ferulic acid (AF) and paeoniflorin on PC12 cells injury by FeSO4/H2O2 in vitro, and explorer its mechanism. Methods The cell injury model was established with FeSO4/H2O2 for 24 h. The process of the growth and morphology of the cells were observed under phase contrast microscope in vitro. The survival rate of the cells was determined by MTT method. The content of MDA and SOD activity was measured respectively by thiobarbituric acid and xanthine oxidase method. Results Compared with FeSO4/H2O2, the mixture of ferulic acid (AF) and paeoniflorin enhanced the PC12 cells survival rate and viability, reduced MDA content and increased SOD activity. Conclusion The mixture of 5~50 ?mol/L AF and 1~10 ?mol/L paeoniflorin exerted protective effects on PC12 cells injury induced by FeSO4/H2O2, which maybe related to free radical scavenging activity and lipid peroxidation process being inhibited.
6.Changes and clinical significance of collagen and cytokine during COPD episode and remission episode.
Jizhen WU ; Lijun MA ; Suyun LI
Chinese Journal of Practical Internal Medicine 2002;0(08):-
Objective Study changes and clinical significance of collagen and cytokine during COPD episode and remission in order to guide clinical treatment. Methods From Mar.2002 to Nov.2004,the COPD patients of episode and remission period were compared with the healthy elderly people.The collagen and cytokine of the serum from the COPD patients and healthy elderly people were detected by applying ABC-ELISA and radio-immunity means. Results The level of serum C_Ⅰ、C_Ⅲ、C_Ⅳ increased obviously in the COPD patients during COPD episode and remission episode compared with that in the healthy elderly people( P
7.The role of IL-8 and NF-?B in the airway inflammation of COPD in stable stage.
Jizhen WU ; Yong QI ; Lijun MA
Chinese Journal of Practical Internal Medicine 2001;0(10):-
Objective To discuss the role of IL-8 and NF-?B in the airway inflammation of COPD in stable stage.Methods From Mar.2003 to Sep.2005,select 26 COPD patients in stable stage,determine the concentration of IL-8 in the serum of induced sputum,separate the macropolycyte and determine the degree of active expression of NF-?B,the concentration of SOD,MDA and IL-8 in peripheral blood.Lung function(the percent of FEV_1/FEV_1 prospectived value,FEV_1/FVC)of all patients were investigated.Results The concentration of IL-8 in the serum of induced sputum of COPD patients was higher than the normal group obviously(P
8.Relationship of gallbladder emptying function and its hemodynamics in diabetic patients
Lijun LU ; Xiang YAN ; Sumei MA
Chinese Journal of Diabetes 2015;(9):839-841
Objective To explore the relationship of gallbladder emptying function and its hemodynamics in diabetic patients. Methods Gallbladder volume ,emptying function and its arterial blood flow were measured by ultrasound. Results The gallbladder volumes of fasting (FV ) and postprandial (RV) increased and the ejection fraction (EF) of gallbladder was decreased in DM group than in NC group (P<0.01). In DM group ,the gallbladder artery’s resistance index (RI) was higher than in NC group [(0.61 ± 0.06) vs (0.70 ± 0.08)](P<0.01). Minimum diastolic blood flow velocity (Vmin) was lower than in NC group [(8.72 ± 1.43) vs (6.05 ± 1.89)cm/s](P<0.01). RI was associated with HbA1c (r= 0.827 ,P< 0.01) and LDL‐C(r= 0.820 ,P< 0.01). Conclusion Gallbladder emptying dysfunction in diabetic patients is associated with the hemodynamics of gallbladder.
9.Factors of incidence of new-onset atrial fibrillation in acute myocardial infarction
Zhao LI ; Lijun CUI ; Xianghong MA
Clinical Medicine of China 2016;32(2):135-138
Objective To research the risk factors of new-onset atrial fibrillation (AF) during hospitalization in patients with acute myocardial infarction.Methods Five hundred and one patients first diagnosed with acute ST-segment elevation myocardial infarction who accepted primary coronary intervention from January 2012 to May 2014 in the Second Hospital of Tianjin Medical University were selected.These patients were divided into non-AF group and new-onset AF group depending on whether happened new-onset AF during hospitalization.Data of the patients in acute myocardial infarction complicated with new-onset atrial fibrillation were collected.Univariate and multivariate logistic regression analysis were used to determine the predictors of new-onset AF.Results AF occurred in 49 cases of the 501 (9.8%) patients diagnosed as acute myocardial infarction.Logistic regression analysis showed that admission heart rate(OR =1.019,95%CI:1.004-1.034,P =0.012),left atrial diameter (OR =1.086,95% CI:1.021-1.156,P =0.009),previous stroke (OR =2.060,95% CI:1.029-4.123,P =0.041) were independent risk factors for new-onset AF in acute myocardial infarction.Use of β-blockers before coronary intervention treatment can reduce the risk of new-onset atrial fibrillation(OR=0.222,95%CI:0.064-0.768,P=0.017).Conclusion Admission heart rate and left atrial diameter are independent predictors of new-onset atrial fibrillation,and β-blockers in early stage can effectively reduce the incidence of atrial fibrillation.
10.Ovarian protection with goserelin during adjuvant chemotherapy for pre-menopausal women with breast ;cancer
Guohua REN ; Meili MA ; Yuji AN ; Lijun SHENG
The Journal of Practical Medicine 2015;(6):992-994
Objective To observe the protective effect of goserelin on ovarian function of premenopausal patients with breast cancer during chemotherapy. Methods Forty patients with breast cancer under 40 received adjuvant chemotherapy were randomly divided intotest group(20 cases) and control group (20 cases). Compared the recovery rate and time of menstruation between two groups. Results All the 40 patients finished the treatment. Recovery ratio of normal ovarian function in test group and control group was 75% and 50% (P =0.013) respectively, and the median menstrual recovery time in two groups was 4.65 months and 6.65 months (P = 0.046) respectively. Statistically significant differences were found between two groups. Conclusion Goserelin can effectively protect ovarian function during chemotherapy , increase the ratio of normal ovarian function, shorten menstrual recovery time, and shows good tolerance.