1.Effects on glucose control of abnormal glucose metabolism during pregnancy by continuous glucose monitoring system
Chinese Journal of General Practitioners 2014;13(7):577-579
For the case study group,52 pregnant women diagnosed as abnormal glucose metabolism and requiring in-hospital glucose control were selected for continuous glucose monitoring.And another 49 pregnant women with known glucose levels through serial glucose monitoring at the same period were taken as case control group.We divided the case study group into A1,A2 and B based on White's typing.In case study group,the glucose levels peaked at 8 to 10 am and dropped to the lowest levels at 10 pm to 6 am on the next day.The glucose of A2 group was markedly higher than that of A1 group.The highest postprandial glucose of case study group happens at (1.6 ± 0.5) h after breakfast,(1.6 ± 1.2) h after lunch and (1.6 ± 0.8) h after dinner.The blood glucose wavy coefficient of patients of A1 and A2 groups had significant statistical difference.The newborn weight of case study group was lower than that of case control group.
3.Detecting Thermal Stability of Cefmenoxime Hydrochloride in Infusion Solutions by Classical Isothermal Kinetic Method and Multivariate Linear Model
Jianxin WANG ; Chenchen ZHANG ; Jizhang YANG ; Tixin GU
Herald of Medicine 2014;(5):668-671
Objective To investigate thermal degradation kinetic characteristics of Cefmenoxime Hydrochloride in infusion solutions, and predict its thermal stability. Methods The HPLC was applied to determine the contents of Cefmenoxime Hydrochloride. Classical isothermal kinetic method and multivariate linear model were used to predict the expiration date of the injection. Results It was found that the thermal degradation kinetics of Cefmenoxime Hydrochloride in two infusion solutions corresponded with the first-order kinetics. The expiration dates of Cefmenoxime Hydrochloride in 0. 9%sodium chloride injection calculated by two different methods were 2. 20 days and 1. 52 days,and in 5% glucose injection were 2. 09 days and 1. 53 days,respectively. Conclusion The thermal stability of Cefmenoxime Hydrochloride in infusion solutions is poor and its expiration dates are the same calculated by two different methods.
4.Determination of Cinnamic Aldehyde Content in Xianggui Huazhuo Capsules by Gas Chromatography-Mass Spectrometry
Dan WU ; Chenchen ZHANG ; Jizhang YANG ; Hongmiao LIU
Herald of Medicine 2015;(3):376-378
Objective To establish a method for determining cinnamic aldehyde content in Xianggui Huazhuo capsules by gas chromatography-mass spectrometry (GC-MS). Methods The content of cinnamic aldehyde was determined by GC-MS. Separation was performed on a capillary column (30 m×0. 25 mm, 0. 25 μm) with HP-5 as the stationary phase. A programmed temperature was employed. The flow rate was 1 mL·min-1 with He as carrier gas, and split ratio was 50∶1. The injection volume was 1. 0 μL. Results The cinnamic aldehyde was well isolated from the other ingredients. A good linear relationships of cin-namic aldehyde in range of 0. 02-4. 00 mg·mL-1 was observed. The correlation coefficient was 0. 999 4. The average recovery of cinnamic aldehyde was 96. 2% , and RSD was less than 2. 11% . Conclusion The method is simple, accurate and suitable for determination of cinnamic aldehyde content.
5.Quality Analysis of Herba Ephedra
Chaozhan LIN ; Chenchen ZHU ; Jinyan YANG ; Kang CHEN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective To supply evidence for quality control of Herba Ephedra by determining content limit in different batches of medicinal material of Herba Ephedra.Methods A RP-HPLC method was used for the determination of ephedrine and pseudo-ephedrine. The chromatographic conditions were: Kromasil RP-C18(250?4.6 mm,5 ?m) column, a mixture of 0.3 %phosphoric acid-methanol (10∶90) as mobile phase and 213nm as detected wavelengths.Results The contents of the above two alkaloids showed great difference among the 14 patches of tested samples. The content of ephedrine ranged 0.361 %~1.538 %and that of pseudo-ephedrine 0.332~2.087 %. The suggested content limitation of ephedrine should be 1.082 %, and that of psedoephedrine be 1.008 %in the crude Herba Ephedra.Conclusion The established method has been proven to be simple, stable and repeatable, and can be applied for quality control of the crude crude Herba Ephedra and compound prescriptions containing crude Herba Ephedra.
6.The relationship between coagulation function indicators of cancer patients and their clinical features
Jiayong HE ; Guoliang WANG ; Huabin ZHANG ; Chenchen YANG
International Journal of Laboratory Medicine 2015;(17):2485-2486,2489
Objective To investigate the relationship between the clinical features of patients with different cancer and their clin‐icalstage,lymphnodemetastasissituation.Methods 135cancerpatientsdiagnosedandtreatedinthehospitalfromJanuary2010to December 2014 were enrolled in the study ,in addition to that ,57 people who underwent healthy examination in the hospital and proved to be healthy were also recruited as control group .Prothrombin time(PT) ,thrombin clotting time(TT) ,activated partial thromboplastin time(APTT) ,D‐dimer ,fibrinogen(FIB) were tested for the people mentioned above .Results The level of routine coagulation indicators were statistically significant different between people with different types of cancers and control group(P<0 .05) .Compared with the control group ,PT ,APTT of the cancer patients significantly shortened ,FIB ,D‐dimer levels were signifi‐cantly increased(P<0 .05) .PT ,APTT was prolonged in lung cancer ,esophageal cancer ,breast cancer ,stomach cancer compared with lung cancer ,FIB ,D‐dimer decreased compared with other malignancies(P<0 .05) .PT ,APTT was decreased and D‐dimer ,FIB was significantly increased in cancer(lung ,esophagus ,breast ,stomach) with Ⅲ‐Ⅳ stage or lymph node metastasis than Ⅰ‐Ⅱstage or non‐lymph node metastasis ,the difference was statistically significant(P<0 .05) .Conclusion The malignant tumors were with hypercoagulable state ,there are differences in coagulation in different clinical stages ,lymph node metastasis .
7.Determination of Psoralen and Isopsoralen in Different Effective Extracts of Fructus Psoraleae by RP-HPLC
Xuejun HU ; Songfeng ZHEN ; Chaozhan LIN ; Jinyan YANG ; Chenchen ZHU
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(05):-
Objective To establish a HPLC method for the assay of psoralen and isopsoralen in different effective extracts of Fructus Psoraleae. Methods HPLC was carried out on the column of Kromasil RP-C18. The mobile phase was methanol -water(65 ∶35). The flow rate was 1.0 mL/min and the UV detection wavelength was 245 nm. Results Good linearity of psoralen was showed within the range of 10.5 ng~525 ng(r= 0.999 3)and isopsoralen within the range of 9 ng~450 ng (r= 0. 999 9). The content of psoralen and isopsoralen differed in different extractions of Fructus Psoraleae. Among them,the extract C (extracted by ethyl acetate ) contained the highest contents of psoralen and isopsoralen,while the contents of psoralen and isopsoralen were very low in the extract D (extracted by n-butyl alcohol) and E (supernatant of water extract). Conclusion The method is simple,accurate and reproducible. The anti-asthma effect and the dose-effect relationship of the different effective extracts of Fructus Psoralea need further pharmacodynamics study.
8.Sodium deoxyribonucleotide injection atZusanlipoint for chemotherapy-induced leukopenia in patients with lung cancer
Lixing YANG ; Dong WANG ; Xuehai LI ; Chenchen MA ; Jianxin ZHANG
International Journal of Traditional Chinese Medicine 2015;(7):602-604
Objective To evaluate thetherapeutic effect of sodium deoxyribonucleotide injection at Zusanli point for chemotherapy-induced leukopenia in patients with lung cancer.MethodsA total of 116 chemotherapy-induced leukopenia patients with lung cancer were randomly divided into a therapy group and a control group, 60 in the treatment group and 56 in the control group. The patients in the treatment group were treated with sodium deoxyribonucleotide injection atZusnlipoint, and those in the control group were treated with vein injection of sodium deoxyribonucleotide.Results The total effective rate in the treatment group was significant higher than that in the control group (91.7%vs.76.8%;χ2=4.890,P=0.032). The effective rates on days 3,5,7 and 10 in the treatment group were also significant higher than those in the control group (on day 3: 51.7%vs. 32.1%,χ2=4.530,P=0.036; on day 5: 76.7%vs. 53.6%,χ2=6.840,P=0.018; on day 7: 85.0%vs. 67.9%,χ2=4.770,P=0.026; on day 10: 78.3%vs. 53.6%,χ2=7.960,P=0.011).Conclusion Sodium deoxyribonucleotide injection atZusanlipoint has definite efficacy for chemotherapy-induced leukopenia in patients with lung cancer.
9.Impact of gestational weight gain and pre-pregnant body mass index on pregnant outcomes
Jin TONG ; Ning GU ; Jie LI ; Chenchen XU ; Lan YANG ; Zhenhua ZHU ; Zhiqun WANG
Chinese Journal of Perinatal Medicine 2013;16(9):561-565
Objective To evaluate the effects of gestational weight gain(GWG) in different prepregnant body mass index (BMI) women on perinatal outcomes and to provide evidences for gestational weight management protocol.Methods Totally,2409 healthy singleton pregnant women accepted regular prenatal examinations in Nanjing Drum Tower Hospital from January 2009 to April 2010 were recruited in this study.They were divided into three groups according to pre-pregnant BMI,which were low BMI group (BMI<18.5),normal BMI group (BMI 18.5-) and high BMI group (BMI≥24.0).According to GWG,the difference between pre-delivery maximal weight and prepregnant weight,the low and normal BMI women were divided into <10 kg,10 kg-and ≥15 kg GWG subgroups,and the high BMI women were divided into <5 kg,5 kg-,10 kg and ≥15 kg GWG subgroups.Data including gestational age,delivery modc,newborns' birth weight,Apgar score and incidences of gestational complications,such as hypertensive disorders complicating pregnancy (HDP),gestational diabetes mellitus (GDM),macrosomia,fetal growth restriction (FGR) and preterm birth,were recorded.Analysis of variance,Student-Newman Keuls,Chi-square test and Fisher exact test were applied for statistics.Results (1) Among the 2409 women,the percentages of low,normal and high BMI groups were 18.5% (n=445),69.9% (n=1685) and 11.6% (n=279),respectively.The incidences of HDP,GDM,macrosomia and caesarean delivery in high BMI group were 12.9% (n=36),17.9% (n=50),13.6% (n=38) and 52.3% (n=146),respectively,higher than those in low BMI group [3.4% (n=15),4.3 % (n=19),3.8% (n=17) and 25.8%(n=115),x2 =23.8,37.1,23.5 and 50.2,P<0.05] and those in normal BMI group [5.5% (n=92),7.8% (n=132),7.8% (n=132)and 31.6% (n=532),x2=21.8,29.0,10.1 and 3.4,P<0.05].(2) In normal BMI group,the rates of FGR and preterm birth in GWG <10 kg subgroup were 3.5% (4/115) and 8.7% (10/115),higher than those in GWG 10 kg-subgroup [0.7%(4/548) and 3.3%(18/548),x2=6.0 and 6.9,P<0.05] and GWG ≥15 kg subgroup [(0.8 % (8/1022) and 3.6% (37/1022),x2=7.2 and 6.7,P<0.05].The rates of macrosomia and cesarean delivery in GWG ≥15 kg subgroup were 10.7% (109/1022) and 34.5% (353/1022),higher than those in GWG<10 kgsubgroup [3.5% (4/115) and 32.2% (37/115),x2=6.0 and 63.0,P<0.05] and GWG 10 kg subgroup [3.5% (19/548) and 25.9% (142/548),x2=24.7 and 31.0,P<0.05].(3) In high BMI group,the incidences of all pregnancy complications and perinatal outcomes did not show statistical significance among the four GWG subgroups (P>0.05).Conclusions High prepregnant BMI is a high risk factor of pregnancy complications.It is suggested that normal BMI women should control GWG at 10-15 kg to lower the incidences of pregnancy complications.
10.Effects of cisplatin combined with heparanase inhibitor on proliferation and invasion of human nasopharyngeal carcinoma cells.
Yang LI ; Hao LIU ; Yingying HUANG ; Longjian PU ; Xudong ZHANG ; Zhiwen JIANG ; Chenchen JIANG
Acta Pharmaceutica Sinica 2013;48(4):609-14
This study is to investigate the effects of cisplatin combined with heparanase inhibitor OGT2115 on proliferation, invasion and migration of human nasopharyngeal carcinoma cells CNE-2 and to provide a new target for the treatment of metastasis of nasopharyngeal carcinoma. MTT assay was used to detect the cell viability of CNE-2 after exposure to different concentrations of DDP (2, 4, 8, 16 and 32 micromol x L(-1)), different concentrations of OGT2115 (0.4, 0.8, 1.6, 3.2 and 6.4 micromol x L(-1)), and DDP combined with OGT2115. Transwell assay was applied to analyze the effects of drugs on invasion and migration of human nasopharyngeal carcinoma cells. Wound healing assay was performed to detect cell migration and heparanase activity was analyzed by ELISA. MTT results showed that DDP can inhibit the proliferation of CNE-2 cells in a time and concentration-dependent manner, with an IC50 of 24.03 micromol x L(-1) at 24 h (P < 0.05), low concentration of DDP has almost no inhibitory effect on cell invasion and migration. DDP combined with OGT2115 can significantly inhibit cell invasion and migration. Inhibition of heparanase can significantly enhance anti-invasion and anti-proliferation of DDP.