1.A Fluorimetric Method for Determination of Chromium (Ⅵ)
Suling FENG ; Anna TANG ; Jing FAN
Chinese Journal of Analytical Chemistry 2001;29(5):558-560
A simple and sensitive fluorimetric method is proposed for the determination of Cr(Ⅵ).The method is based on the oxidation of Cr(Ⅵ) to the pyronine in the sulfuric acid medium.The detection limit for Cr(Ⅵ) is 2.2μg/L,the linear range of the determination is 8.0~88μg/L.The method has been used to determine Cr(Ⅵ) in electroplating waste,electroplating solution and alloy steel samples with satisfactory results.
2.Flow Injection-Catalytic Spectrophotometric Determinationof Trace Phenols Using Stopped-Flow Technique
Yahong CHEN ; Jing FAN ; Cunling YE ; Suling FENG
Chinese Journal of Analytical Chemistry 2001;29(3):339-341
A rapid and simple flow-injection-catalytic spectrophotometric method using stopped-flow technique for determination of trace phenols is described. This methods is based on the catalytic effect of phenols on the reaction of rhodamine B and potassium bromate in sulfuric acid medium. The optimal experimental conditions are obtained by using the controlled and weighed centroid simplex method. The linear range of the determination is 0.60~4.00 mg/L for phenols, and the detection limit is 0.1 mg/L with the sample throughput of 34/h. The relative standard deviation of eleven replicate measurements is less than 2.0%. It has been applied for the determiantion of phenols in waste water with satisfactory results
3.Flow Injection Spectrophotometric Determination of Metoclopramide
Jing FAN ; Yahong CHEN ; Cunling YE ; Suling FENG
Chinese Journal of Analytical Chemistry 2001;29(2):216-218
A rapid and sensitive flow-injection spectrophotometric method was proposed for the determination of metoclopramide. This method was based on the diazotisation of metoclopramide with sodium nitrite in acidic medium and coupling with α-naphthylamine. The optimal experimental condition was obtained by using the simplex optimization method. The linear range was 0.0 ~ 30 mg/L, and the sample throughput was 160 samples h-1. The relative standard deviation of eleven replicate measurements was less than 0.6%. The method was used to determine metoclopramide in tablets and injections. The results were statistically compared with those obtained by pharmacopoeia method.
4.Meta-analysis on PFNA and DHS in treatment of unstable intertrochanteric fracture
Jian CHENG ; Huining LEI ; Shiming FENG ; Jing FAN ; Mingming LIU
Chongqing Medicine 2016;45(21):2956-2961
Objective To evaluate the effects and security of PFNA and DHS in the treatment of unstable intertrochanteric fractures through meta analysis .Methods The randomized controlled trials(RCT) for comparing PFNA and DHS in the treatment of unstable intertrochanteric fracture were retrieved from MEDLINE ,EMbase ,Pubmed ,Cochrane library ,CBM ,CNKI ,VIP data‐bases by computer .The related orthopedic relevant documents and conference papers were collected by manual retrieval .The Rev‐Man5 .1 statistical software was used for conducting the meta analysis .Results Nineteen RCT were included ,involving 1 690 pa‐tients ,in which 871 cases were treated by using PFNA and 819 cases were treated by using DHS .Compared with DHS ,PFNA had the advantages of little trauma ,less blood loss ,short operation time ,short fracture healing time and postoperative bed time ,good hip function and low incidence of postoperative coxa vara and screw cutting ,but there were no statistical differences in the aspects of length of hospital stay ,fatality rate ,and incidences of fracture nonunion ,breakage of internal fixation ,femoral head necrosis ,short‐ening of the femoral neck ,femoral shaft fractures ,deep vein thrombosis ,urinary tract infection and other complications between the two groups(P>0 .05) .Conclusion The retrieved literatures show that PFNA internal fixation is superior to DHS internal fixation in treatment of unstable intertrochanteric fractures .
5.Jinlong capsule combined with chemoradiotherapy for NSCLC: a Meta-analysis.
Qiang LU ; Jing-bin LUO ; Yi-fan FENG ; Qin SHE ; Zhong-feng SHI
China Journal of Chinese Materia Medica 2015;40(22):4491-4496
The purpose of this study was to evaluate the effect and safety of Jinlong capsule combined with chemotherapy or radio-therapy for non-small cell lung cancer (NSCLS) using Meta-analysis. PubMed, Embase, CNKI and Wanfang databases were all searched without language restriction, and searching time was from January 1990 to July 2015. All eligible published studies were included in this study for quality assessment and data extraction. All the data were analyzed using Revman 5.3. A total of ten studies including 736 subjects (370 in Jinlong capsule plus chemoradiotherapy and 366 in chemoradiotherapy only) were finally included in this Meta-analysis. The result of Meta analysis showed that compared with pure chemoradiotherapy group, Jinlong capsule combined with chemoradiotherapy for NSCLC could improve the patients' curative effect (OR = 1.77, 95% CI: 1.29-2.43, P < 0.05), clinical benefit rate (OR = 1.89, 95% CI: 1.22-2.91, P < 0.05), life quality improvement rate (OR = 2. 56, 95% CI: 1.61-4.05, P < 0.05), and decrease leucopenia incidence rate (OR = 0.35, 95% CI: 0. 22-0.56, P < 0.05) and gastrointestinal reaction rate (OR = 0.67, 95% CI: 0.40-1.11, P < 0.05). The pooled results showed that Jinlong capsule combined with chemoradiotherapy for NSCLC could improve the curative effect and life quality, and decrease the adverse reaction of patients.
Antineoplastic Combined Chemotherapy Protocols
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administration & dosage
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Capsules
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administration & dosage
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Carcinoma, Non-Small-Cell Lung
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drug therapy
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radiotherapy
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Chemoradiotherapy
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Combined Modality Therapy
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Drugs, Chinese Herbal
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administration & dosage
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Humans
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Lung Neoplasms
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drug therapy
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radiotherapy
6.Role of visfatin in the pathogenesis of gestational diabetes mellitus and its relationship with insulin resistance
Yan HUO ; Suxin LIU ; Jing FENG ; Hongyan LI ; Yanli FAN ; Ying JIN ; Li LI
Chinese Journal of Obstetrics and Gynecology 2014;49(8):584-587
Objective To investigate the role of visfatin in the pathogenesis of gestational diabetes mellitus (GDM)and its correlation with insulin resistance.Methods The study recruited 58 pregnant women of 24 to 28 gestational weeks in People' s Hospital of Hebei Province from January to June 2013.Among them,30 were patients with GDM (GDM group),28 had normal oral glucose tolerance test and was referred as healthy pregnancy group (NGT group).Fourteen age-matched female who were first-degree relatives (FDR1)of type 2 diabetes mellitus patients,and 27 healthy nonpregnant women with normal oral glucose tolerance test were referred as high-risk group and normal controls (NC),respectively.The fasting plasma glucose (FPG),1 hour and 2 hours postprandial glucose levels were measured by glucose oxidase method.The fasting insulin (FIN)levels were measured by radioimmunoassay and the homeostatic model assessment-insulin resistance index (HOMA-IR)was calculated.The levels of total cholesterol (TC),triglycerdes (TG),high density lipoprotein cholesterol (HDL)and low density lipoprotein cholesterol (LDL)were determined.The visfatin levels were measured by ELISA.Results (1)The levels of FPG were significantly higher in GDM,FDRI and NC group [(5.5±0.7),(5.1±0.6),(5.2±0.4) mmol/L] than that in NGT group [(4.5 ± 0.3) mmol/L],respectively (P<0.05).(2) The levels of INS [(14 ± 6) mU/L],HO MA-I R (4.0±2.0),1 hour [(10.9± 1.8) mmol/L] and 2 hours [(8.6± 1.8) mmol/L] postprandial glucose levels of GDM group were significantly higher than those in NGT group [(12±4) mU/L,2.0± 1.0,(7.4± 1.3) and (6.2 ±0.9) mmol/L],respectively (P<0.05).(3)The levels of TC,TG,HDL and LDL levels in GDM group were (5.5±0.9),(2.8±0.8),(1.8±0.4)and(3.3±0.8) mmol/L,and were(5.9 ± 0.8),(2.5 ± 0.7),(1.9 ± 0.4) and (3.4 ± 0.6) mmol/L in NGT group.The levels of lipid in the two groups were significantly higher than those in FDR 1 or NC group,respectively (P<0.05).(4) The levels of visfatin in GDM group and NGT group [(43 ± 10),(45 ± 12) μg/L] were significantly higher than that in FDR1 or NC group [(29±9),(36±7) μg/L],respectively (P<0.05),but the visfatin levels in FDR 1 group were significantly lower than that in NC group (P<0.05).The visfatin levels in GDM group were slightly lower than that in NGT group,but the difference was not statistically significant (P>0.05).(5)The visfatin levels in NGT group were negatively correlated to the levels of FPG,HOMA-IR and TC(r=-0.38,-0.44,-0.47,respectively,P<0.05).But the visfatin levels in GDM group were not correlated with the levels of FPG,HOMA-IR,TC (r=-0.16,-0.01,0.33,respectively,P> 0.05).While in NC group,the levels of visfatin were negatively correlated with FPG and 2 hours postprandial glucose (r=-0.48,-0.42,respectively,P<0.05).Conclusion Visfatin may be an important adipokine that involved in the carbohydrate and lipid metabolism in GDM,and is related to the pathogensis of GDM and insulin resistance.
7.Relationship Between Apelin Level and Blood Pressure in a Coastal Population of Fujian Province
Yin YUAN ; Feng HUANG ; Pengli ZHU ; Fan LIN ; Jing LIN ; Lili ZHOU
Chinese Circulation Journal 2015;(1):42-46
Objectives: To explore the relationship between vascular active peptide, apelin level and blood pressure in a coastal population of Fujian province.
Methods: A total of 1031 subjects with the mean age of (55.1 ± 10.9) years in a coastal area of Fujian province were included in this cross-sectional study, and 416 subjects with male gender. The questionnaire survey, physical examination and plasma level of apelin measurement were conducted. Based on JNC-7 deifnition of hypertension, the subjects were divided into 3 groups: ① Hypertension group, the patients with systolic blood pressure (SBP)≥140 mmHg and/or diastolic blood pressure (DBP)≥90 mmHg, n=496. ② Pre-hypertension group, SBP at (120-139) mmHg and/or DBP at (80-89) mmHg without medication, n=314.③Normal BP group, SBP<120mmHg and DBP<80mmHg without medication, n=221. Based on 4 quartiles of apelin levels, the subjects were further divided into 4 groups:Q1 group, apelin<164.8 ng/ml, n=258. Q2 group, apelin at (164.8-<220.0) ng/ml, n=258. Q3 group, apelin at (220.0-283.1) ng/ml, n=258. Q4 group, apelin>283.1 ng/ml, n=257. One way analysis of variance, covariance analysis and multivariate linear regression analysis were used to study the
relationship between apelin level and BP.
Results: The apelin level in male gender (220.57 ± 78.87) pg/ml was lower than female gender (232.06 ± 81.17) pg/ml. Compared with Normal group, Pre-hypertension group had decreased apelin level, compared with Normal and Pre-hypertension groups, Hypertension group had decreased apelin level, P<0.05. Compared with Q1 group, Q2, Q3 groups presented decreased SBP, DBP and mean arterial blood pressure (MABP), and compared with other 3 groups, Q4 group had decreased SBP, DBP (not including Q2, Q3 groups) and MABP, P<0.05. With adjusted age and gender, SBP, DBP and MABP were signiifcantly different among 4 quartiles of apelin groups, P<0.05. Multivariate linear regression analysis indicated that SBP, DBP and MABP were negatively related to apelin level, such relationship remained the same after adjusting the other cardiovascular risk factors.
Conclusion: Apelin level dropping accompanying with BP increasing implies that vascular active peptide, apelin involved in BP regulation.
9.Treatment of lower extremity diabetic atherosclerotic obliterans with shuxuetong injection.
Kun FENG ; Jing-fan TAN ; Ying CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2009;29(3):255-257
OBJECTIVETo observe the effect and safety of Shuxuetong Injection (SXT) in treating patients with type 2 diabetes mellitus accompanying lower extremity atherosclerotic obliterans.
METHODSThe selected patients were assigned by randomized digital table to the treated group (180 cases treated with SXT) and the control group (80 cases treated with alprostadil). The clinical efficacy was assessed after 4 weeks of treatment, and the inner diameters and blood flow of the superficial femoral artery, the posterior tibial artery and the foot dorsal artery were measured and compared before and after treatment using Doppler's ultrasonography.
RESULTSThe total effective rate in the treated group was 94.4% (170/180), better than that in the control group, 85.0% (68/80, P < 0.01). Ultrasonic examination showed that the inner diameter and the blood flow of all the arteries measured in the treated groups increased after treatment (P < 0.01), with the increase superior to those in the control group (P < 0.05). No adverse reaction was found during the treatment.
CONCLUSIONSXT has the effect of activating blood circulation, dissolving stasis and dredging collaterals, it could reduce or eliminate the formation of thrombi, being effective and safe when applied in clinical practice for the treatment of lower extremity diabetic atherosclerotic obliterans.
Adult ; Aged ; Arteriosclerosis Obliterans ; drug therapy ; etiology ; Diabetes Mellitus, Type 2 ; complications ; drug therapy ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Infusions, Intravenous ; Lower Extremity ; blood supply ; diagnostic imaging ; Male ; Middle Aged ; Phytotherapy ; Ultrasonography
10.Clinic-based depression screening in hepatocellular carcinoma patients using the PHQ-9 depression questionnaire
Jing ZHANG ; Songlin AN ; Liming WANG ; Weiqi RONG ; Fan WU ; Li FENG ; Jianxiong WU
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(7):646-649
Objective To investigate the possibility of perform depression screening with the patient health questionnaire (PHQ-9) in hepatocellular carcinoma patients,and to evaluate the prevalence of depression among these patients.Methods 186 hepatocellular carcinoma patients completed PHQ-9 and Hamilton depression scale (HAMD) from January 2015 to April 2015.60 patients randomly selected from these 186 patients received depression screening again with PHQ-9 in 7 to 14 days after the first survey.Results Cronbach's α coefficient of PHQ-9 was 0.869,the test-retest reliability 0.963,and the range of correlation coefficient of the nine items with the total score of the scale was 0.546-0.752 (P<0.01).The sensitivity and specificity of PHQ-9 were 84.4% and 95.7% respectively.69(37.1%) cases of the 186 patients were detected with depression with PHQ-9,and mild,moderate and major depression were 41 (22.0%),21 (11.3%) and 7(3.8%) respectively.Conclusion PHQ-9 has been shown to have good reliability and validity for screening of depression in hepatocellular carcinoma patients.