1.Determination of sarsasapogenin in crude Anemarrhena asphodeloides and its preparation by RP-HPLC-ELSD
Lan SHEN ; Huping ZHU ; Qi SONG ; Ming CHEN ; Guangping FAN ;
Chinese Traditional and Herbal Drugs 1994;0(10):-
Object To show that ELSD is an excellent detector for the detection of chemical compounds devoid of chromophore, such as sarsasapogenin Methods Sarsasapogenin in crude Anemar rhena asphodeloides Bunge and its preparation was determinated by RP HPLC ELSD Results The well separated chromatographic peaks show linearity with recovery of the added sample of 100 5% in crude medicinal material and 91 38% in its preparation, r= 0 999 0 Conclusion The method was advanced, reliable, simple and can be used for quality control of crude A asphodeloides and its preparations
2.Status of knowledge and performance of chronic heart failure guideline in general practitioners of Shanghai Pudong communities
Lan NI ; Hui ZHAO ; Jinhua XUE ; Qi XU ; Fengyuan CHEN
Chinese Journal of General Practitioners 2015;14(5):351-357
Objective To investigate the status of knowledge and performance on Chinese Heart Failure Diagnosis and Treatment Guideline (2014 version) in general practitioners of Shanghai Pudong communities.Methods The survey was conducted from April to June in 2014 with a self-designed questionnaire.Total 390 general practitioners (GPs) in Pudong New Area were selected by cluster sampling method.The contents of questionnaire included:diagnosis and differential diagnosis,drug therapy,non drug therapy of chronic heart failure.Result Total 385 questionnaires were retrieved with a response rate of 98.7% (385/390).The results showed that in aspect of diagnosis and differential diagnosis,373 (96.9%) Gps made the diagnosis based on history and physical examination,171 (44.4%)Gps never used BNP or NTPro-BNP tests,280 (72.7%)GPs did not know how to identify systolic or diastolic heart failure,86 (22.3%)Gps made the differential diagnosis according to the EF value.In aspects of drug therapy,the rate of beta blockers use was 10%-30% in 284 (73.8%) Gps,149 (38.7%) Gps did not use beta blockers because of not knowing the contraindications,289 (75.1%) Gps used a maximum dose of betaloc for 25-50 mg,no one used 101-200 mg,242 (62.9%)Gps did not know the target dose of betaloc,the rate of ACEI/ARB use was 10%-30% in 330 (85.7%) Gps,258 (67.0%) Gps would increase the dose but not knowing the target dose.The main reason for not using the target dose of Betaloc and ACEI/ARB was not knowing the dose.In aspect of non-drug therapy:240 (62.3%)Gps never heard of cardiac resynchronization therapy (CRT) and 271 (70.4%)Gps never heard of implantable cardioverter defibrillator (ICD).The senior rank GPs grasped the guideline much better than Gps with primary and intermediate professional ranks.Conclusion General practitioners in community health centers should further study the guideline of heart failure,particularly need to strengthen the knowledge and ability of drug therapy.
3.Effect of Radix Rehmanniae on expression of collagen Ⅰ and Ⅲ of pulmonary interstitial fibroblast in rat
Li LIU ; Lan TANG ; Desheng XU ; Qi CHEN
Chinese Traditional Patent Medicine 1992;0(02):-
AIM:To investigate the effect of Rehmannia glutinosa Libosch on collagen Ⅰ and Ⅲ of in pulmonary interstitial fibroblast in rat. METHODS: The components of Radix Rehmanniae were extracted and isolated to several parts.Primary pulmonary fibroblasts were separated from lung interstitial tissue of rat.After being reproduced for several generations,fibroblasts were cultured in the extracts of Radix Rehmanniae and Shengdi Solution for injection in several concentrations respectively for 72 hours,and then contents of Col Ⅰ and Col Ⅲ of these fibroblast were determined by RT-PCR. RESULTS: The part containing mainly oligosaccharide from preparation that decocted with water and deposited with alcohol could inhibit Col Ⅰ with a few exceptions concentration while it could inhibit Col Ⅲ at high concentration.The part of deposit inhibited Col Ⅰ obviously in the concentration of 2?10~(-2) g/mL and could inhibit Col Ⅲ in all the concentrations.Shengdi Solution for injection could inhibit Col Ⅲ in all the concentrations. CONCLUSION: Some constitutents of Radix Rehmanniae can inhibit the expression of Col Ⅰ and Col Ⅲ of pulmonary fibroblast which is one of mechanisms that Radix Rehmanniae takes effect on fibrosis disease in pulmonary interstitial tissue.
4.Analysis the epidemiological features of 3,258 patients with allergic rhinitis in Yichang City.
Bo CHEN ; Zhimao ZHANG ; Zhi PEI ; Shihan CHEN ; Zhimei DU ; Yan LAN ; Bei HAN ; Qi QI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(3):264-266
OBJECTIVE:
To investigate the epidemiological features in patients with allergic rhinitis (AR) in Yichang city, and put forward effective prevention and control measures.
METHOD:
Collecting the data of allergic rhinitis in city proper from 2010 to 2013, input the data into the database and used statistical analysis.
RESULT:
In recent years, the AR patients in this area increased year by year. The spring and the winter were the peak season of onset. The patients was constituted by young men. There was statistically significant difference between the age, the area,and the gender (P < 0.01). The history of allergy and the diseases related to the gender composition had statistical significance difference (P < 0.05). The allergens and the positive degree in gender, age structure had statistically significant difference (P < 0.01).
CONCLUSION
Need to conduct the healthy propaganda and education, optimizing the environment, change the bad habits, timely medical treatment, standard treatment.
Allergens
;
China
;
epidemiology
;
Female
;
Humans
;
Male
;
Rhinitis, Allergic
;
epidemiology
;
Seasons
5.The impact of proton pump inhibitors on esophageal acid exposure in gastroesophageal reflux disease
Xueya LIANG ; Weina CHEN ; Ling LAN ; Qi WANG ; Yanwei Lü ; Yu LAN
Chinese Journal of Internal Medicine 2012;51(7):513-515
Objective To explore the effects of proton pump inhibitors (PPIs) therapy on esophageal acid exposure of patients with gastroesophageal reflux disease(GERD),and the correlation of anxiety and depression with recurrence of acid-related symptoms after discontinuation of PPIs.Methods From February 2010 to June 2011,28 patients with GERD diagnosed by ambulatory 24 h esophageal pH monitoring admitted to Beijing Jishuitan Hospital were treated with esomeprazole 20 mg 2 times/d for 8 weeks (male 16,female 12).Symptoms after drug discontinuation were monitored.Ambulatory 24 h esophageal pH monitoring was performed on patients,whose symptom recurred within 8 weeks after treatment.BMI,Self-rating Anxiety Scale(SAS),and Self-rating Depression Scale (SDS) were detected.Results Among the 28 patients with GERD,15 (53.6%) recurred symptoms after withdraw of PPIs.Compared with the asymptomatic group after withdraw of PPIs,the pretreatment duration of pH 4 (supine),24 h total acid reflux time,number of time periods with acid reflux >5 minutes,the maximal acid reflux time and 24 h total number of acid reflux in the symptomatic recurrence group were statistically significantly increased ( 11.7%vs 4.5%,138.8 minutes vs 62.1 minutes,6.0 vs 2.0,27.0 minutes vs 12.4 minutes,74.0 times vs43.0times,respectively,all P values < 0.05 ).There were no significant differences in BMI,SAS and SDS between the two groups.Conclusions The basic level of esophageal acid exposure of patients with GERD before PPIs therapy may influence the esophageal acid exposure after PPIs therapy and then may affect the recurrence of symptoms.Although anxiety and depression is common in patients with GERD,it is not found that the recurrence of acid-related symptoms after the discontinuation of PPIs therapy is related to the anxiety and depression.
6.Age related reference value for reticulocyte hemoglobin equivalent among children aged one to thirteen years
Yuefang WANG ; Hui YANG ; Xia WANG ; Juan LI ; Lan CHEN ; Hong WANG ; Qi CHEN ; Yongmei JIANG
Chinese Journal of Laboratory Medicine 2008;31(7):767-770
Objective To establish age related reference value for the new reticulocyte hemoglobin equivalent (RET-He) parameter in healthy children aged one to thirteen years. Methods Reticulocyte hemoglobin equivalent was measured by Sysmex XE-2100 after completing daily internal quality control in 424 healthy children and the outlying observations was handled afterward, Age related reference value anddistribution of RET-He level were described as the 2.5th and 97.5th centiles, and the equation regardingage related reference value was established through curve fitting methods. Results After grouping accordingto sex, the medians of boys and girls in RET-He were 31.30 pg,31.80 pg. Non-parametric test showed therewas no differences between the boys and girls. When the data from two group was integrated together, thefitted equations of RET-He were: P2.5 =-0.008X3+0.125X2 - 0.178X+26.456; P97.5= 0.021X2-0.184X+34.670(X refers to age) ; R2 were 0.85 and 0.90,respectively(P <0.05). There was statisticallysignificance for the above equations. Conclusions The reference value of RET-He in healthy children isdifferent from those in adult. The equations can be used to produce age related reference value. It could beuseful for anemia diagnosis, differential diagnosis and hematopoiesis screening at early stage.
7.CT findings of Askin tumor of chest wall
Jun QIANG ; Pengfei QI ; Diansen CHEN ; Zihao LI ; Shuangshuang GUO ; Wanqin GAO ; Lan CHEN
Chinese Journal of Radiology 2016;50(8):590-593
Objective To analyze CT manifestations of chest wall Askin tumor and to illustrate its CT diagnostic and differentially diagnostic key points.Methods Eleven cases of chest wall Askin tumors were pathologically confirmed in our hospital between May 2006 and November 2014.Of them,10 cases were children and adolescents,and 9 cases had chest pain as the first symptom.All patients received plain CT scan,while 7 cases received contrast enhanced scan.CT signs of this group were retrospectively analyzed,including the location,quantity,shape,size,density,adjacent tissue invasion and distant metastasis of the tumors.Results CT examination showed a single oval mass on the chest wall in all 11 cases.The tumor was located completely within the thoracic cavity in 10 cases,while a tumor's main part was within thoracic cavity.Nine tumors had long diameters of more than 9 cm.All the tumors were heterogeneous without calcification,wherein 10 cases showed necrosis and cystic degeneration.On contrast enhanced scan,7 cases showed heterogeneously mild to moderate enhancement.All tumors invaded adjacent tissues,including 7 cases of bone damage of a single rib,and 7 cases of pleural involvement,wherein 6 cases had pleural effusion.No remote metastases were found in this group.Conclusions CT manifestations of Askin tumors of chest wall have some characteristics,and familiarity with these manifestations is conducive to diagnosis and differential diagnosis of this disease.
8.Studies on the Pharmacodynamics of Niao Gan Ning
Qi CHEN ; Qiangmin XIE ; Yangmei DENG ; Yu SHI ; Lan YU ; Xiaom LIU ; Yun SUN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(03):-
Objective: To investigate the anti-inflammatory, bacteriostatic, diuretic, antispasmodic and immunoenhancement effect of Niao Gan Ning(NGN). Methods: The tests of inhibiting the leukocyte infiltration, in-vitro bacteriostasis, water loading with metabolism cage, isometric tension recording and the phagocytosis of abdominal macrophages(AM) were conducted. Results: NGN could obviously inhibit the wandering of leukocyte in abdominal cavity and decreased the number of WBC in mice, and exert bacteriostatic effect to various degrees. NGN also increase the urine volume in water load rats, inhibited contraction of bladder and ureter smooth muscle induced by Carbacol and histamine in rabbits and rats, and increased phagocytosis of the chicken red cells by AM. Conclusion: NGN has a strong anti-inflammatory, bacteriostatic, diuretic and antispasmodic effect.
9.Analyzing the relationship between eigenvalues and limb function of rabbit after traction inj ury
Jingcong CHEN ; Xinchun LI ; Qi WAN ; Bowen LAN ; Chongpeng SUN ; Jianxun HE ; Xiaomei WU ; Jiaxuan ZHOU
Journal of Practical Radiology 2014;(5):848-851,882
Objective To investigate the correlation between eigenvalues(λ∥ andλ⊥)of sciatic nerve and limb function in a rabbit model of acute nerve traction inj ury for finding the role ofλ∥ andλ⊥ on diagnosis of nerve inj uries.Methods The right sciatic nerves of 32 Newland rabbits were selected to be performed as traction injury,and then left sciatic nerves were treated as control for the sham operation side.MRI DTI scan was performed before and after the operation on 1 day ,3 day,and 1 week,2,3,4,6 and 8 weeks respectively.Theλ∥ andλ⊥ of inj ured sciatic nerves and sham operated nerves were measured,meanwhile functional exami-nations were evaluated,and then analyzing the correlation betweenλ⊥ of inj ured sciatic nerves and the score of inj ured limb function in the periods of 3 days to 8 weeks;finally different portions of sciatic nerve were removed for histological examinations.Results Theλ⊥ of inj ured sciatic nerves in the proximal portion was slightly increased at 3 days and recovered to the normal at 2 weeks.Theλ⊥ of inj ured sciatic nerves in the traction portion and distal portion were slightly raised at 1 day,reached to its maximum value at 3 days,and then decreased gradually after 1 week and dropped to the pre-operation level after 4 weeks.Theλ⊥ of inj ured sciatic nerves in the proximal portions was significantly higher than that of the sham-operated nerves from 1 day to 1 week(F=7.275,P=0.000). Theλ⊥ of inj ured sciatic nerves in the traction portion and distal portion were significantly higher than that of the sham-operated nerves from 1 day to 3 weeks(F=5.851,F=3.794,P=0.001,P=0.000).However,there was no significantly difference between theλ∥ of inj ured nerves in each portion and sham-operated nerves .The negative correlation between theλ⊥ of inj ured sciatic nerves in the distal portion and the score of the nerve function in the injured limb was found (r=-0.938,r=-0.897,P<0.01).Conclu-sion Theλ⊥ of inj ured nerves in the traction portion and distal portion could monitor the process of degeneration and regeneration of sciatic nerve in traction inj ury,while theλ∥ plays no obvious role in diagnosis of nerve inj uries.
10.Protective effect of sulodexide on ox-LDL induced damage to human umbilical vein endothelial cells and its mechanism
Kejia KAN ; Haozhe QI ; Shuofei YANG ; Qihong NI ; Xiangjiang GUO ; Jiaquan CHEN ; Lan ZHANG
Journal of Interventional Radiology 2017;26(6):539-543
Objective To investigate the protective effect of sulodexide (SDX) on oxidized low density lipoprotein (ox-LDL) induced damage to human umbilical vein endothelial cell (HUVEC),and to discuss its mechanism.Methods By using CCK-8 method,the ox-LDL intervention HUVEC dose and the concentration of SDX were determined.The reactive oxygen species (ROS) assay kit was used to verify the protective effect of SDX on HUVEC.Real time fluorescent quantitation-polymerase chain reaction (RT-PCR) was employed to test the endothelial nitric oxide synthase (eNOS) and caveolin-1 mRNA expression;immunoblot assay was adopted to check the protein expression of phosphorylated eNOS (p-eNOS) and caveolin-1.The ability of cell migration was assessed by Transwell assay.Results Stimulated by 100 μg/ml concentration of ox-LDL,the cell viability of HUVEC decreased significantly (P<0.01).After adding 125 LRU/ml concentration of LDX,the cell viability of HUVEC was remarkably improved (P<0.01) and the production of ROS was strikingly decreased (P<0.01).SDX could down-regulate the expression of caveolin-1 (P<0.05) and up-regulate the expression of eNOS mRNA and p-eNOS (P<0.05) for ox-LDL-damaged HUVEC,and markedly improve the migration ability of damaged HUVEC (P<0.01).Conclusion By regulating the caveolin-1/eNOS signal route,SDX can improve impaired HUVEC cell migration ability,thus,to protect endothelial cells.