Cognition and progress of de Winter electrocardiogram pattern / 中南大学学报(医学版)

The de Winter electrocardiogram pattern is an acute ST-segment elevation myocardial infarction equivalent, however this specific electrocardiogram change is easily ignored by clinicians. The de Winter electrocardiogram pattern in patients with acute chest pain mostly indicates sub-complete or complete occlusion of the left anterior descending or the diagonal branch. Patients with acute chest pain and such electrocardiographic finding should undergo emergency coronary angiography immediately to determine the coronary condition, and reperfusion therapy should be performed as soon as possible to reduce the incidence of adverse cardiovascular events.

Clinical characteristics of patients with the de Winter electrocardiogram pattern / 中南大学学报(医学版)

OBJECTIVES@#To explore the electrocardiogram manifestations and clinical characteristics of patients with the de Winter electrocardiogram pattern.@*METHODS@#This retrospective study was performed on acute coronary syndrome (ACS), patients with culprit lesion in left anterior descending branch (LAD), who admitted to Yongchuan Hospital of Chongqing Medical University from August 2017 to October 2018. Patients were categorized into those with or without the de Winter electrocardiogram pattern. The characteristics of de Winter electrocardiogram were analyzed by the clinical data of the patients.@*RESULTS@#Among 230 patients with left anterior descending branch lesion, 14 (6%) had the de Winter electrocardiogram pattern. Compared with the control group, patients with de Winter electrocardiogram pattern were younger [(53.86±10.26) years old vs (67.20± 11.60) years old @*CONCLUSIONS@#The de Winter electrocardiogram pattern syndrome in patients with acute chest pain mostly indicates that the left anterior descending or the diagonal branch is subtotal or completely occluded, which is a special ST-segment elevation myocardial infarction equivalent and should attract the clinicians' extensive attention.

Study on Screening of Effective Components of Embelia parviflora for Tonifying Blood and Its Mechanism / 中国药房

OBJECTIVE：To inv estigate the tonifying blood effects of different extract parts of Embelia parviflora on blood deficiency model mice ，and to explore its mechanism. METHOD S：Totally 70 mice were randomly divided into blank control group（water），model control group （water），positive control group （Danggui buxue oral liquid ，324 g/kg），petroleum ether ， ethyl acetate ，n-butanol and water parts of E. parviflora groups（4.2，10.64，22.07，5.0 g/kg respectively ，calculated by the extractum），with 10 mice in each group. The mice were given medicine intragastrically ，once a day ，for consecutive 14 d. Except for blank control group ，other groups were given intraperitoneal injection of cyclophosphamide （80 mg/kg）on 12th and 13th day of starting administration to induce blood deficiency model. 30 min after last administration ，automatic hematology analyzer was used to detect the levels of peripheral hemogram indexes （WBC，RBC，HCT，PLT，HGB）；the levels of IL- 2，IL-3，IL-6，EPO， G-CSF，M-CSF and VCAM- 1 were determined by ELISA ；thymus and spleen indexes were calculated. RESULTS ：Compared with blank control group ，peripheral hemogram indexes levels ，serum levels of IL- 2，IL-3，IL-6，EPO，G-CSF，M-CSF，VCAM-1 and thymus index were decreased significantly ，while spleen index was increased significantly （P＜0.01）. Compared with model control group，there was no statistical significance in above indexes of mice in petroleum ether part of E. parviflora group（P＞0.05）. The levels of RBC ，HGB，PLT，the serum levels of IL- 2，IL-6，G-CSF，M-CSF，VCAM-1 and thymus index in ethyl acetate part of E. parviflora group were significantly increased （P＜0.05 or P＜0.01），while there was no statistical significance in other indexes （P＞0.05）. Except for no significant increase of WBC in water part of E. parviflora group，above peripheral hemogram indexes ， serum indexes and thymus index of n-butanol group and water part of E. parviflora group were increased significantly while spleen index was decreased significantly （P＜0.05 or P＜0.01）. CONCLUSIONS：The ethyl acetate ，n-butanol and water parts of E. parviflora can improve immunological function and the expression of hematopoietic factors in blood deficiency model mice ，and shows certain blood tonifying effects.

Optimization of the Extraction Technology of Total Flavonoids from Combretum alfrdii / 中国药房

OBJECTIVE： To establish the method for content determination of total flavonoids from Combretum alfrdii， and to optimize the extraction technology of total flavonoids from C. alfrdii. METHODS： Using aluminium trichloride as， chromogenic agent， UV spectrum was adopted to determine the content of total flavonoids from C. alfrdii. Based on single factor test， ethanol volume fraction， material-liquid ratio， extraction time， extraction temperature and times were selected as investigation factors， and the content of total flavonoids was selected as response value， Plackett-Burman design was used to screen the factors that had significant influence on the content of total flavonoidsfrom C. alfrdii. Then steepest climbing test was adopted to confirm the optimum valuing range； the extraction technology of total flavonoids was optimized by Box-Behnken response methodology. RESULTS： The linear range of total flavonoids were 0.012-0.036 mg/mL （r＝0.999 9）； RSDs of precision， stability and repeatability tests were less than 3％； the recovery ranged from 92.98％ to 99.86％ （RSD＝2.71％， n＝6）. The optimal extraction technology included that 60％ ethanol， material-liquid ratio of 1 ∶ 34 （g/mL）， extracting for 3 times， lasting for 60 min， extraction temperature of 80 ℃. Under this technology， average content of total flavonoids from C. alfrdii was 2.71％ （RSD＝1.69％， n＝6）， and the relative error was 2.65％ compared with predicted value of the model （2.64％）. CONCLUSIONS： Established method is stable and reproducible， and can be used for content determination of total flavonoids from C. alfrdii. The optimized extraction method is stable and feasible.

Comparison of life quality between surgical castration and drug castration in advanced prostate cancer / 中国生化药物杂志

Objective To explore the effects of surgical castration and intermittent androgen blockade (IAB) in patients with advanced prostate cancer.Methods 115 cases of advanced prostate cancer were selected including 48 cases with drug castration receiving IAB and 67 cases with surgical castration.Before the treatment, 6 months and 1 years after the treatment, the quality of life of the two groups was investigated by the quality of life questionnaire (EORTC QLQ-C30 +QLQ-PR25).Results Compared with before treatment, the general health status of the patients in the drug castration group and the surgical castration group were significantly improved (P<0.01), the whole body and the local pain were relieved (P<0.01) and the micturition symptoms were controlled ( P<0.01 ).The overall quality of life of drug castration group and surgical castration group were significantly decreased (P<0.05), and the degree of sexual function was particularly affected (P<0.01), but the body function of patients in drug castration group restored to a certain extent in drug castration group after 1 year’s treatment(P<0.01), while the quality of life in patients of surgical castration did not reverse.Conclusion Both of surgical castration and androgen deprivation therapy can reduce the quality of life of patients with advanced prostate cancer, but the adverse effects of drug treatment on the quality of life can be recovered in treatment intermission.

Effect of tirofiban combined with reteplase in patients with ST segment elevation acute myocardial infarction / 重庆医学

Objective To study the thrombolysis effect and safety of tirofiban combined with half dose reteplase in patients with ST segment elevation acute myocardial infarction .Methods 60 patients with ST segment elevation acute myocardial infarction in our hospital from January 2011 to March 2013 were selected as research object ,and they were divided into reteplase group (control group ,n=32) and tirofiban combined with reteplase group (observation group ,n=28) ,then the recanalization rate of infarct-relat-ed artery at different time and incidence of complications were compared .Results The recanalization rate of infarct-related artery of observation group at different time were all higher than those of control group (P0 .05) .Conclusion The thrombolysis effect of tirofiban combined with half dose reteplase in patients with ST segment elevation acute myocardial infarction is better ,and it does not increase the incidence of complications .

Determination of glaucocalyxin A by HPLC and its protein binding rate in plasma of rat / 中草药

Objective To study the protein binding rate of glaucocalyxin A in plasma of rat. Methods The plasma balance dialysis was used. An HPLC for the quantitative determination of glaucocalyxin A was presented and used to calculate the protein binding rate in plasma of rat. Results There were protein binding rate results of 74.46%, 77.87%, and 75.29% at three various concentrations 20, 10, and 1 ?g/ mL of glaucocalyxin A in plasma of rat. Conclusion The HPLC method used to determine glaucocalyxin A is simple, rapid, and sensitive with good specificity, precision and accuracy, and glaucocalyxin A has medium capacities in protein binding rate in plasma of rat.

Pharmacodynamics study on Radix saposhnikoviae(RL) and Feutus tribuli (FI) / 中成药

Objective: To study the pharmacological effects of Radix Saposhnikoviae (RL) and Fruetus Tribuli (FI) used singly and combinedly. Methods: The effect of the tested drugs on the animal itching models induced by dextran 40 and Histanmine, skin capillary permeability induced by Histamine and experimental nettle rash induced by dimethylsulfoxide (DMSO) were observed. Results: RL and FI used singly and combinedly could obviously relieve the itch, inhibit the increase of skin capillary permeability induced by Histamine and resist experimental nettle rash induced by dimethylsulfoxide (DMSO) in different degree. Conclusion:RL and FI used singly and combinedly have anti allergic effect and the effect of RL and FI used combinedly is the same as used respectively.

Experimental study of Radix Saposhnikoviae and Feutus Trbuli on antagonizing type Ⅰ allergy / 中成药

AIM: To study the effects of Radix Saposhnikoviae(RL) and Feutus Trbuli(FI) used singly and combinedly on antagonizing type Ⅰ allergy,such as passive cutaneous anaphylaxis(PCA),released model from mast cell granules,Schulz-Dale respond. METHODS: Mouse and rat models mainly induced by IgE were used in experiments. RESULTS: RL and FI used singly and combinedly could significantly inhibit PCA of same species of mice,the degranulation of mast cells of skull in rats and Schulz-Dale response. CONCLUSION: Both RL and FI respectively have antagonistic effect on type Ⅰ allergy and RL in combination with FI will possess more satisactory effect