1.Early results and mid-term patency of minimally invasive direct coronary bypass grafting surgery
Min TANG ; Ju MEI ; Hao LIU ; Naishi ZHAO ; Hang YI
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(4):205-207
Objective To study the early clinical outcome of patients undergone minimally invasive direct coronary bypass(MIDCAB) surgery,and the mid-term patency of left internal mammary artery(LIMA)-left anterior descending(LAD) anastomosis.Methods From Jannuary 2007 to May 2014,47 cases underwent MIDCAB surgery in our department,with 35 males and 12 females,aged 48-76 years,with the average of (62.9 ± 8.1) years old.Types of LAD lesions were as followed:1 case was ostial total obstruction,28 severe stenosis at proximal segment,10 long and severe stenosis,3 calcified lesion with severe stenosis,5 myocardial bridge.All patients had symptomatic angina,typical myocardial ischemia could be detected by electrocardiogram for all patients with myocardial bridge.Comorbidities included:hypertension 38 cases,27 diabetes mellitus,3 COPD and 3 chronic kidney disease.Results All surgery went well without transfer to mid-sternotomy.LIMA harvest time was 38-53 minutes,mean LIMA flow rate was(22 ± 6) ml/min after anastomosis.Surgery duration was 117-143 minutes,blood loss was less than 100 ml for each operation.No blood transfusion was required.Tracheal intubation time was 4-16 hours,ICU stay time was 22-45 hours,hospital stay time was 6-10 days.There was no peri-operative death,either no myocardial infarction or cerebral vessel accident.During follow-up,all LIMA-LAD appeared to be patent by coronary CT angiography.Conclusion High patency rate of LIMA-LAD anastomosis could also be obtained during MIDCAB surgery.It was reserved as a safe and effective surgery for well-selected patients.
2.Identification of related substances in nicergoline by HPLC-MS.
Xuefang ZENG ; Jie LIU ; Min SONG ; Taijun HANG
Acta Pharmaceutica Sinica 2015;50(8):1026-31
To study the related substances in nicergoline, electrospray positive ionization high resolution TOF/MS was used for the determination of the accurate mass and elemental composition of the related substances. Triple quadrupoles tandem MS/MS was employed for the determination of the fragmentations of the parent ions. 16 related substances were detected and identified to be eight synthetic by-products and eight degradation products, by using impurity references matching, product mass spectra fragmentations elucidation, and verified further according to synthetic processes and stress testing results. The results obtained are valuable for nicergoline manufacturing process control and quality assurance.
3.Application of whole brain angiography via radial approach in young patients for the diagnosis of ischemic cerebrovascular disease
Gaofei LIU ; Min ZHU ; Jinbiao QIN ; Chunhua HANG
Chinese Journal of Cerebrovascular Diseases 2015;(4):189-191
Objective To assess the feasibility and safety of transradial puncture route for digital subtraction angiography (DSA)in young patients with ischemic cerebrovascular disease. Methods One hundred young patients with cerebrovascular disease who underwent whole brain angiography at the Department of Neurology,the 81 st Hospital of PLA were enrolled. They were divided into either a radial group (n =50)or a femoral group (n = 50)using a computer random number method. The time of puncture,success rate of puncture,success rate of selective angiography,exposure time,and incidence of complications were compared and analyzed. Results (1)The puncture time of the radial group was significantly longer than that of the femoral group,they were 3. 00 ± 0. 50 min and 1. 50 ± 0. 25 min respectively. There was significant difference (t = 18. 97,P < 0. 05). There were no significant differences in the success rate of puncture (98% vs. 100%),success rate of selective angiography (100% vs. 100%),and exposure time (5. 3 ± 2. 2 vs. 4. 8 ± 1. 7 min)between the two groups (all P > 0. 05). (2)The incidence of complications of the radial group (4%,n = 2)was significantly 1ower than that of the femoral group (18%,n = 9 ). There was significant difference between the two groups (χ2 = 5. 01,P < 0. 05 ). Conclusion Transradial route puncture for whole brain DSA in young patients with cerebrovascular disease is safely and feasible.
4.Identification of related substances in nicergoline by HPLC-MS.
Xue-fang ZENG ; Jie LIU ; Min SONG ; Tai-jun HANG
Acta Pharmaceutica Sinica 2015;50(8):1026-1031
To study the related substances in nicergoline, electrospray positive ionization high resolution TOF/MS was used for the determination of the accurate mass and elemental composition of the related substances. Triple quadrupoles tandem MS/MS was employed for the determination of the fragmentations of the parent ions. 16 related substances were detected and identified to be eight synthetic by-products and eight degradation products, by using impurity references matching, product mass spectra fragmentations elucidation, and verified further according to synthetic processes and stress testing results. The results obtained are valuable for nicergoline manufacturing process control and quality assurance.
Chromatography, High Pressure Liquid
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Nicergoline
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chemical synthesis
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chemistry
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Quality Control
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Tandem Mass Spectrometry
6.Analysis of recurrence pattern and prognosis of patients with cervical envenoms and pelvic lymph node metastasis
Ying XIONG ; Lizhi HANG ; Min ZHENG ; Luanhong WANG ; Pengfei DENG ; Jihong LIU
Chinese Journal of Obstetrics and Gynecology 2008;43(6):425-428
0bjective To investigate the pattern of disease relapse and prognostic risk factor of patients with cervical carcinoma and pelvic lymph node metastasis.Methotis A total of 124 cases of International Federation of Gynecology and Obstetricfi(FIG0)I bl-Ⅱ a cervical carcinoma with pelvic node metastasis who were treated at the Cancer Center of Sun Yat-sen University during January 1994 to December 2001 were selected for this study.Prognosis and recurrence were retrospectively analyzed using the clinico.pathological data.Results The overall 5 year flun,ival and 5 year disease-free survival were 63.3% and 61.4%.respectively.Overall recurrence rate was 39.5%(49/124),among which intra-pelvic relapse (61.0%,25/41)was significantly more common than extra-pelvic relapse(31.7%,13/41;P=0.008).Multivariate analysis identified involvement of common iliac node as an independent prognostic factor(P=O.035).According to this factor,node-positive patients could be divided into low risk group(without common iliac node involvement,104 cases)and hiSh risk group(with common iliac node involvement,20 cases).The 5 year disease-free survival were 69.4%and 24.5%respectively,with a significant difference(P=0.003).Intra.pelvic relapse was observed in 22.1%(23/104)of low risk and 25.0% (5/20)of high risk group respectively,with no significant difference(P>0.05).However extra-pelvicrelapse wag seen in 7.7%(8/104)of low risk and 40.0%(8/20)of hish risk group,with a significant difference(P<0.01).Conclusions Common iliac node involvement is a significant factor influencing the prognosis of patients with cervical carcinoma and pelvic lymph node metastasis.Patients with positive common iliae nodes have significantly decreased 5 year disease.free survival and hishcr extra-pelvic disease recurrence rates compared with those whose common iliac nodes are negative.These findings provide impo.rtant data for design of individualized treatment mode.
7.Influence of different brushing time in oral hygiene in adolescent orthodontic patients and their clinical significances
Te WANG ; Xingfu BAO ; Junxing YANG ; Shaowei LIU ; Hang YU ; Min HU
Journal of Jilin University(Medicine Edition) 2017;43(2):375-380
Objective:To study the changes of oral health indexes in adolescent orthodontic patients under different brushing time, and to provide basis for the orthodontists to give effective dental health promotion in clinic.Methods:A total of 123 adolescent orthodontic patients were included, and they were divided into 1-3min, 3-5 min, 5-7 min and 7-10 min groups based on the brushing time recorded in the period of orthodontic treatment.The relationship between different brushing time and oral health indexes was evaluated 1,3,and 6 months after experiment, such as sulcus bleeding index(SBI),plaque index(PLI), debris index-simplified(DI-S) and enamel demineralization index(EDI).Results:Compared with 1-3 min and 3-5 min groups, the SBI, PLI, and DI-S of the patients in 5-7 min group were significantly reduced(P<0.05).There was no significant differences of SBI, PLI, DI-S , and EDI between 5-7 min group and 7-10 min group (P>0.05).Conclusion:Brushing teeth more than 5 min can improve the oral hygiene significantly and the best time is 5-7 min;the orthodontists should require the patients to brush teeth at least for 5 min.
8.Construction and function identification of luciferase reporter gene vectors containing SNPs in NFKBIA gene 3'UTR.
Shuo YANG ; Jiali LI ; Huichang BI ; Shouning ZHOU ; Xiaoman LIU ; Hang ZENG ; Bingfang HU ; Min HUANG
Acta Pharmaceutica Sinica 2016;51(1):80-5
This study aims to investigate the function of two SNPs (rs8904C > T and rs696G >A) in 3' untranslated region (3'UTR) of NFKBIA gene by constructing luciferase reporter gene. A patient's genomic DNA with rs8904 CC and rs696 GA genotype was used as the PCR template. Full-length 3'UTR of NFKBIA gene was amplified by different primers. After sequencing validation, these fragments were inserted to the luciferase reporter vector, pGL3-promoter to construct recombinant plasmids containing four kinds of haplotypes, pGL3-rs8904C/rs696G, pGL3-rs8904C/rs696A, pGL3-rs8904T/rs696G and pGL3-rs8904T/rs696A. Then these plasmids were transfected into LS174T cells and the luciferase activity was detected. Compared with pGL3-vector transfected cells (negative control), the luciferase activity of the four kinds of recombinant plasmids was significantly decreased (P < 0.001). For rs696G > A, the luciferase activity of the recombinant plasmids containing A allele (pGL3-rs8904C/rs696A and pGL3-rs8904T/rs696A) was about 45.1% (P < 0.05) and 56.1% (P < 0.001) lower than those containing G allele (pGL3-rs8904C/rs696G and pGL3-rs8904T/rs696G), respectively. For rs8904C > T, there were no significant differences in the luciferase activity between the recombinant plasmids containing T allele and those with C allele. Together, the luciferase reporter gene vectors containing SNPs in NFKBIA gene 3'UTR were constructed successfully and rs696G > A could decrease the luciferase activity while rs8904C >T didn't have much effect on the luciferase activity.
9.Effects of DC loaded α-GalCer combined with tumor specific cytotoxic T lymphocytes on the growth of transplanted Heps hepatoma in mice
Peng WANG ; Zhiyong LUAN ; Junquan LIU ; Min HANG ; Jin PAN ; Nanzheng ZHANG
Journal of International Oncology 2016;43(11):806-811
Objective To investigate the effects of dendritic cells (DCs)loading alpha-Galactosylce-ramide (α-GalCer)combined with tumor specific cytotoxic T lymphocytes (CTLs)on the growth of transplanted Heps hepatoma in mice.Methods We induced the augmentation of the DC cells and T lymphocyte derived from the mice bone marrow,and enabled them to be specific CTLs.DC cells loaded α-GalCer in vitro.First we established a Heps liver cancer xenograft model,then divided the model mice into 4 groups by random number table method (n =9):control group (intravenous injection with physiological saline),CTL group,DC loadingα-Galcer group and DC loading α-Galcer combined with CTLs group.After 2 weeks of intervention,we extrac-ted the tumor tissue,weighed the tumor and calculated the inhibition rate of tumor.The expressions of Bax/Bcl-2 cells in groups of transplanted tumor tissues were detected using immunohistochemistry and Western blotting. Results The average tumor weight of CTL group,DC loading α-GalCer group and combined treatment group were (1 .07 ±0.1 5)g,(1 .1 1 ±0.1 7)g,(0.79 ±0.1 4)g,respectively.All of them were lower than that of control group (1 .69 ±0.23)g,with significant differences (t =1 4.1 76,P =0.023;t =1 2.351 ,P =0.034;t =1 8.672,P =0.000).The average tumor weight of combined treatment group was lower than those of the CTL group and DC loading α-GalCer group,with significant differences (t =1 5.236,P =0.01 2;t =1 1 .1 76, P =0.037).Compared to the CTL group (36.69%)and DC loading α-GalCer group (34.32%),the com-bined treatment group had a higher tumor inhibition rate (53.25%;P =0.034,P =0.021 ).Immunohisto-chemical assay showed that the numbers of Bax-positive cells in CTL group,DC loading α-GalCer group and combined treatment group were 35.83 ±0.75,33.67 ±0.82,41 .1 7 ±1 .1 7 respectively,and compared with the control group (21 .67 ±2.1 6),the differences were statistically significant (t =-1 3.789,P =0.002;t =-1 5.1 1 6,P =0.001 ;t =-1 7.452,P =0.000).The numbers of Bax-positive cells in combined treatment group were different with CTL group and DC loading α-GalCer group (t =-7.730,P =0.009;t =-5.872, P =0.01 1 ).The numbers of Bcl-2-positive cells in CTL group,DC loading α-GalCer group and combined treatment group were 30.83 ±0.75,31 .67 ±1 .03,25.00 ±0.89,and compared with the control group (38.67 ±1 .21 ),the differences were statistically significant (t =9.234,P =0.007;t =1 1 .738,P =0.003;t =20.608,P =0.000).The numbers of Bcl-2-positive cells in combined treatment group were different with CTL group and DC loading α-GalCer group (t =1 1 .952,P =0.003;t =1 2.223,P =0.002).Western blot-ting test results showed that the expression levels of Bax in CTL group,DC loading α-GalCer group and com-bined treatment group were 0.46 ±0.01 ,0.42 ±0.03,0.55 ±0.01 ,and compared with the control group (0.31 ±0.02),the differences were statistically significant (t =1 .035,P =0.032;t =1 .1 24,P =0.027;t =1 .425,P =0.01 0).The expression level of Bax in combined treatment group was different with CTL group and DC loading α-GalCer group (t =1 .305,P =0.01 3;t =1 .421 ,P =0.01 0).The positive expressions of Bcl-2 in CTL group,DC loading α-GalCer group and combined treatment group were 0.34 ±0.03,0.33 ± 0.02,0.24 ±0.01 ,and compared with the control group (0.46 ±0.01 ),the differences were statistically sig-nificant (t =-1 .1 23,P =0.025;t =-1 .061 ,P =0.031 ;t =1 .278,P =0.01 4);the positive expression level of Bcl-2 in combined treatment group was different with CTL group and DC loading α-GalCer group (t =1 .1 60,P =0.021 ;t =1 .21 9,P =0.01 5).Conclusion It has synergistic killing effect on transplanted Heps hepatoma in mice using DC loading α-GalCer combined with the tumor specific CTL.
10.The prevalence of metabolic syndrome in residents aged over 35 years in Chongqing
Min DENG ; Huacong DENG ; Hang WANG ; Hua QU ; Chen CHEN ; Fang LIU
Chinese Journal of Endocrinology and Metabolism 2014;30(9):760-764
Objective To investigate the prevalence and epidemiologic characteristics of metabolic syndrome (MS) in adults aged over 35 years in Chongqing.Methods Randomly selected adults were studied by means of multi-stage sampling.A cross-sectional study was conducted in Chongqing with a representative sample of 5 384 Chinese adults aged over 35 years.After an overnight fasting,participants underwent an oral glucose tolerance test,fasting and 2-hour plasma glucose,blood lipid profile as well as height,body weight,blood pressure were measured.In this survey,the prevalence of MS was analyzed according to the diagnostic criteria of International Diabetes Federation in 2005.Results The crude prevalence of MS was 20.28%,and the standardized prevalence was 18.72% after age was adjusted.Compared to male population,female participants showed a higher prevalence (25.55% vs 12.90%,P<0.01).The prevalence of MS was higher in urban residents than in rural (26.65% vs 16.94%,P<0.01).The prevalence of MS increased with age,along with the highest prevalence in the group aged over 65 years.The incidences of central obesity,high triglyceridemia,hyperglycemia,hypertension,and low highdensity lipoprotein-cholesterol were 30.11%,26.17%,43.93%,54.03%,and 27.23%,respectively.There were at least 83.06% subjects who possessed more than 1 risk factor.The most common combination of four components of MS were central obesity,high triglyceridemia,hyperglycemia,and hypertension.Conclusion There is a high prevalence of MS in adult residents in Chongqing.MS is increasingly becoming a noteworthy health problem requiring urgent attention for its prevention and treatment.