1.Study on the HPLC Fingerprint Chromatogram of Cuochuang Xiaoyan Lotion
Jiangping ZHENG ; Youlin ZHANG ; Liangyong HUANG
China Pharmacist 2016;19(7):1276-1279
Objective:To prepare Cuochuang Xiaoyan lotion and establish HPLC fingerprint chromatogram for the quality control . Methods:The separation was performed on a Waters XTerra MS C 18column(250 mm ×4.6 mm, 5μm).The mobile phase consisted of acetonitrile-0.2%phosphoric acid with gradient elution at a flow rate of 1.0 ml· min-1 , the eluent was monitored by a UV detector at 277 nm, and the column temperature was at 30℃.Results: There were sixteen common peaks for the sample , and among them, three ones were identified as baicalin , linarin and rhein , respectively .Conclusion:The repeatability and information of chromatogram peaks of the method are satisfied , which can provide credible quality control method for Cuochuang Xiaoyan lotion .
2.Determination of Baicalin and Polydatin in Kanggan Liyan Syrups by HPLC
Liangyong HUANG ; Youlin ZHANG ; Jiangping ZHENG
China Pharmacist 2014;(4):703-705
Objective:To establish an HPLC method for the determination of baicalin and polydatin in Kanggan Liyan syrups. Methods:The samples were analyzed on an Waters SunFire C18 column with the mobile phase A of acetonitrile and the mobile phase B of 0. 2% phosphoric acid solution with gradient elution. The flow rate was 1. 0 ml·min-1 , the detection wavelength was 284nm,and the column box temperature was 30℃. Results:Baicalin and polydatin could be separated effectively without interference. The linear range of baicalin was 32. 0-480. 0 μg·ml-1 and the average recovery was 98. 71%(RSD=0. 67%,n=5). The linear range of poly-datin was 16. 0-240. 0 μg·ml-1 and the average recovery was 97. 02%(RSD=1. 03%,n=5). Conclusion:The method is accurate and stable, and can be used in the determination of Kanggan Liyan syrups.
3.Study on the GC fingerprints of volatile oil in ultramicro-powder of Houttuynia cordata
Youlin HUANG ; Zhucan LIN ; Suhua GUO ; Jiancheng LIU ; Yifan HUANG
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(12):-
Objective:To establish a GC fingerprint analysis method for identification of volatile oil in ultramicro-powder of Houttuynia cordata from different habitats, then to control the quality sensitively.Methods: GC was used to analyze the volatile constituents of ultramicro-powder of Houttuynia cordata from 12 different habitats;SPDTM-1CapillaryColumn(30m?0.32mm?0.25?m),temperature programming and FID detector were applied.Results: The mutual mode of GC fingerprints was set up and the similar degrees to the volatile oil from of different habitats were compared.Conclusion:The GC fingerprints of volatile oil in ultramicro-powder can be used to identify the Houttuynia cordata from different habitats and evaluate its quality.
4.Effects of herba epimedium extract on spontaneous activity and sleep function of mice
Youlin PENG ; Xiuyuan ZHU ; Jing ZENG ; Xianhua HUANG
Chinese Journal of Tissue Engineering Research 2005;9(40):164-166
BACKGROUD: According to the record of Compendium of Herbology of herbs epimedium, Berberidaceae barrenwort genus, herbs epimedium has the effects of supplementing essence qi, consolidating bones and tendons, tonifying bruise of loin and strengthening cardiac ability, etc. In recent years, its clinicalapplications and pharmacological effects have been reported more frequently.OBJECTIVE: To investigate the effects of herba epimedium extract on spontaneous activity and sleep function of mice under the intervention of suprathreshold and subthreshold dose of pentobarbital sodium with the method of jiggle-cage transducer.SETTING: Department of Mathematics and Physics, Laboratory of Analysis, Department of Pharmacology, Gannan Medical College.MATERIALS: A total of 110 healthy adult Kunming male mice of clean grade, with a body mass between 18 g and 22 g.METHODS: The experiment was conducted in Laboratory of Scientific Research Institute of Gannan Medical College from August to September 2004. ① The mice (n=30) were injected intraperitoneally with 1 000 g/L herbs epimediu extract(0.01 mL/g) and put into hanging cage 15 minutes later, after a 3-minute stabilization period, waveforms of spontaneous activity within 15 s after the administration of drug were recorded. ②The mice (n=40) were intraperitoneally injected with 1000 g/L herba epimediu extract(0.01 mL/g), 15 minutes later, injected intraperitone ally with 0.02 mL/g suprathreshold dose of pentobarbital sodium (2.5 g/L), and then observe the disappearance time of righting reflex of the mouse. ③ The mice (n=40) were injected intraperitoneally with 1 000 g/L herba epimediu extract(0.01 mL/g), 15 minutes later,intraperitoneally injected with 0.01mL/g subthreshold dose of pentobarbital sodium (0.25%),and then observe the disappearance time of righting reflex of the mouse.MAIN OUTCOME MEASURES: Frequency of spontaneous activity of the mice; sleeping time of the mouse with suprathreshold and subthreshold dose of pentobarbital sodium.RESULTS: All the 110 mice entered result analysis. ① Herba epimedium extract (0.1 mL/10 g) could significantly inhibit the spontaneous activity of the mice, and the frequencies of large waves and moderate waves decreased obviously (7.4±6.5, 47.1±18.7; t=3.265, P < 0.01). ② Herbs epimedium extract (0.01mL/10g) could shorten the time for falling asleep and prolong the sleeping time of the mouse with suprathreshold dose of pentobarbital sodium, and there was significant difference as compared with the control group [(3.9±2.8), (219.7±87.2); (5.8±2.9), (113.0±77.4) minutes; t=2.452, 2.501, P < 0.05]. ③ Herba epimedium extract (0.01 mL/10 g)could significantly prolong the time for falling asleep and the sleeping time of the mouse with subthreshold dose of pentobarbital sodium, and there was significant difference as compared with the control group [(6.6±5.2),(60.3±71.7); 0, 0 minute; t=3.275, P < 0.01]. Herba epimedium extract and pentobarbital sodium had synergistic effect of central inhibition.CONCLUSION: Herba epimedium extract has the effect of significant central inhibition, which could inhibit the spontaneous activity of mice ,remarkably shorten the time for falling asleep,and obviously prolong the sleeping time of the mouse with suprathreshold dose of pentobarbital sodium, prolong the time for falling asleep of the mouse with subthreshold dose of pentobarbital sodium and increase the amount of animals falling asleep.
5.The comparison of ticagrelor and clopidogrel on patients undergoing percutaneous coronary intervention with acute ST elevated myocardial infarction
Youlin MAO ; Qiong HUANG ; Jian CHEN ; Yu ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2015;(7):1041-1043
Objective To compare the effects of ticagrelor and clopidogrel on patients undergoing percutane-ous coronary intervention(PCI)with acute ST elevated myocardial infarction (STEMI).Methods 120 patients with STEMI received PCI within 12h of symptom onset in our hospital were randomly divided into clopidogrel treated group (n=60)and ticagrelor treated group (n=60).Serum was collected before surgery and 36 hours after PCI for ALT, Cr,CK-MB,and MA.Cardiac ultrasound was examined,too.All patients were followed 6 months post-PCI for main adverse cardiovascular and cerebrovascular events (MACCE)and medicine side effect.Results No significantly difference was noted in baseline between the two groups.The level of CK-MB and MA in the ticagrelor treated group [CK-MB(56.5 ±8.3)U/L,MA (45.9 ±6.4)mm[and clopidogrel treated group[CK-MB(74.3 ±9.6)U/L,MA (35.6 ±7.3)mm]were significant difference (CK-MB,P=0.043;MA,P=0.038).The MACCE of patients in ticagrelor treated group were significantly lower than patients in clopidogrel treated group during post-PCI 6 months follow-up(The ratio of angina in ticagrelor group was 1.7%,while in clopidogrel group was 6.7%,P=0.042). Conclusion Ticagrelor is more effective in suppress the function of platelet,decrease MACCE in patients with STE-MI undergoing PCI.
6.Relationship between left atrial diameter with serum glutamyl transpeptidase level in patients with essential hypertension
Feng CHEN ; Gang LUO ; Youlin FU ; Mingshan HUANG
International Journal of Laboratory Medicine 2017;38(8):1077-1078,1081
Objective To analyze the relationship and clinical meaning of serumglutamyl transpeptidase (GGT) level with left atrial diameter.Methods All the 320 essential hypertension patients from Ganzhou People′s Hospital were divided into normal left atrial group and enlarged left atrial group based on the size of left atrial diameter.Fasting blood glucose,serum lipid,routine laboratory tests,hepatic and renal function and blood pressure were measured by routine methods,and used for analyzing between groups.Results Among essential hypertension patients,the GGT level in enlarged left atrial group [(24.78±10.93)U/L] was lower than normal left atrial group[(35.23±12.46)U/L] (P=0.004).Multiple linear regression analysis showed that the serum GGT was negatively correlated with left atrial diameter (P=0.032),and logistic regression analysis showed that GGT was a protective factor for enlarged left atrial (OR=0.424,P=0.026).Conclusion Our study demonstrated the level of GGT was negatively with left atrial diameter among essential hypertension patients,and monitoring the changes of serum liver enzyme may has significant effect on the early detection of enlarged left atrial diameter.
7.Investigation of knowledge and acceptability of human papillomavirus vaccine and assessment of health education among employed urban women in China
Shaokai ZHANG ; Rong HUANG ; Shaoming WANG ; Fanghui ZHAO ; Youlin QIAO
Cancer Research and Clinic 2014;26(2):114-117,128
Objective To investigate knowledge of cervical cancer,human papillomavirus (HPV) and HPV vaccine and attitude to HPV vaccine among employed urban women in China,and to assess willingness to vaccinate their children.Methods This study was conducted in women from 16 factories or companies in Beijing,Hangzhou,Changsha,Chcngdu and Guangzhou.A questionnaire on cervical cancer,HPV knowledge and HPV vaccine acceptability was administered to participants before and after educational intervention.Results A total of 1 146 women were surveyed from August to November,2011.The awareness rates of cervical cancer,HPV and HPV vaccine were 95.06 %,27.98 % and 12.82 %,respectively.Only 20.68 % knew that HPV was related to cervical cancer.After educatioual instruction,89.26 % understood the relationship between HPV and cervical cancer (x2 =93.414,P < 0.001).Only 19.25 % women were unwilling to allow their children to be vaccinated.The main reasons were as follows:worried about vaccine safety (23.52 %),belief that their child was not at risk (21.92 %),lack of scientific evidence for the vaccine (13.01%),and worricd about vaccine efficacy (12.79 %).Conclusions In general,there is a high acceptability of HPV vaccine to prevent cervical cancer among employed urban Chinese women after educational intervention.However,some women remain reluctant to vaccinate their children due to concern about vaccine safety and efficacy.
8.Association of serum γ-glutamyl transpeptidase level with carotid intima media thickness in essential hypertension
Feng CHEN ; Gang LUO ; Youlin FU ; Mingshan HUANG
International Journal of Laboratory Medicine 2017;38(14):1925-1927,1930
Objective To analyze the association of serum γ-glutamyl transpeptidase(γ-GT)level with carotid intima media thickness(IMT) in essential hypertension.Methods All the 300 essential hypertension patients and 70 healthy controls were from Ganzhou People′s Hospital.They were divided into healthy control group(70 cases),hypertension with out arteriosclerosis group(141 cases) and hypertension with arteriosclerosis group(159 cases) based on carotid IMT.Fasting blood glucose,serum lipid,routine laboratory tests,hepatic and renal function were detected by routine methods.The one-way analysis of variance and χ2-test were used to compared among the three groups,and the relationship of γ-GT with IMT was assessed by using the Spearman correlation coefficient,multiple linear regressions and Logistic regression analysis.Results The diastolic blood pressure,body mass index,fasting blood glucose,glomerular filtration rate and glycosylated hemoglobin had no differences among the three groups(P>0.05),but systolic pressure,triacylglycerol,total cholesterol,high density lipoprotein cholesterol,aspartate transaminase(AST),low density lipoprotein cholesterol alanine,transaminase(ALT) and γ-GT had significant differences among the three groups(P<0.05).Multiple linear regression analysis showed that the serum γ-GT(β=-0.345,95%CI was-0.005——0.511,P=0.036) was also negatively correlated with IMT,and Logistic regression analysis showed that γ-GT(OR=0.569,95%CI was 0.237-0.867,P=0.029)was a protective factor for atherosclerosis.Conclusion Our study demonstrated the level of γ-GT is negative with IMT among essential hypertension patients,and monitoring the changes of serum liver enzyme might has significant effect on the early detection of arteriosclerosis.
9.Simultaneous Determination of Baicalin,Linarin,Rhein in Cuochuang Xiaoyan Lotion by HPLC Method
Jiangping ZHENG ; Zhengde YE ; Youlin ZHANG ; Liangyong HUANG
Herald of Medicine 2017;36(11):1294-1297
Objective To establish a specific HPLC method for simultaneous determination of three components ( baicalin, linarin and rhein) in Cuochuang Xiaoyan lotion. Methods The three components in Cuochuang Xiaoyan lotion were assayed by HPLC gradient elution method.The assay was performed with Waters Xterra MS C18(4.6 mm×250 mm,5 μm) column, with acetonitrile (A) and 0.2% phosphoric acid solution (B) as mobile phase in gradient elution.The flow rate was 1.0 mL·min-1.The detection wave length was 277 nm and column temperature was 30 ℃. Results Three components were completely separated from the adjacent peaks and a good linear relationship between each sample concentration and integral area was obtained.The linear equations were as follows:Ybaicalin=9.208X-0.0994(R2=0.9999, 83.97-839.70 μg·mL-1);Ylinarin=3.0628X-0.0038 ( R2 = 0. 9999, 34. 75-347. 49 μg · mL-1 );Yrhein = 1. 0225X-0. 0286 ( R2 = 0. 9998, 63. 20-632.00 μg·mL-1 ) . Conclusion The HPLC method is simple, accurate and reproducible, which is effective in controlling the quality of Cuochuang Xiaoyan lotion.