2.Effects of DDP with cisplatin by CHPP on patients with late digestive tract cancer
Qiong WANG ; Chen XU ; Weidong MAO ;
China Oncology 2001;0(02):-
Purpose: To study the treatment of metastasis of late digestive tract cancer?Methods:58 patients with late digestive tract cancer were divided into two groups. One group (reference group) of patients 28 cases were underwent chemotherapeutic treatment while another (treatment group) 30 cases were treated with DDP by CHPP. Results:Through DDP by CHPP (treatment group) the treatment show effectiveness as much 63.3% higher than that of reference group as 39.3%. This indicates the fact that there were significant differences between the groups ( P 0.05)Conclusions: DDP with Cisplatin by CHPP on patients with late digestive tract cancer, especially those patients followed by ascites, can evidently enhance the effectiveness of the treatment.
3.Clinical analysis of failure factors in root canal therapy
Qiong XU ; Adan WANG ; Ying SHI
Journal of Practical Stomatology 2001;0(03):-
Objective:To analyze the failure factors in root canal therapy(RCT)by analysis of the failed cases.Methods:215 teeth of 206 patients were analyzed according to former treatment records,clinical examination,pretreatment radiographs,and root canal exploration during endodontic retreatment.Results:67.9% of failed teeth showed apical radiolucency,12.6% showed under-filled canal material without apical radiolucent area,and 8.4% involved coronal leakage.When examined with X ray,84.2% of teeth indicated under-filling,and most canals of premolars and molars had poor taper.Most missed root canals were found in maxillary first molars and premolars.18.1% of teeth had complications such as ledge and apical transportation.Conclusions:The factors associated with RCT failure involve cleaning,obturation and poor seal of root canal system resulted from inadequate shaping.Coronal leakage and missed canals also contribute to the endodontic treatment failure.
4.p38 mitogen-activated Protein Kinase in Vascular Smooth Muscle Cells Proliferation in SHR
Liuqing XU ; Qiong YE ; Changsheng XU ; Huajun WANG ; Kegui WU
Chinese Journal of Hypertension 2006;0(09):-
Objective To investigate the role of p38 mitogen-activated protein kinase(p38MAPK) pathway in the proliferation of SHR vascular smooth muscle cells(VSMC) induced by angiotensin Ⅱ(Ang Ⅱ) and platelet-derived growth factor-BB(PDGF-BB).Methods VSMC were obtained from SHR thoracic aorta.DNA synthesis was quantified by measuring [3H]-thymidine incorporation.The p38MAPK activity was evaluated by immunobloting technique with phospho-p38MAPK antibody.Results 1) Ang Ⅱ(10-8-10-6 mol/L),PDGF(3-30 ng/L) dose-dependently increased the proliferation activity of VSMC([3H]-TdR incorporation).Ang Ⅱ(10-7 mol/L) or PDGF(10 ng/L) significantly increased [3H]-TdR incorporation rate in VSMCs(Ang Ⅱ:11 588?1322 vs control 2546?207 counts/min,P
5.Determination of Vancomycin in Human Serum by HPLC
Xinwen SONG ; Qiong XU ; Yang WANG ; Huanian ZHANG ; Hua XU
China Pharmacy 2005;0(18):-
OBJECTIVE: To establish an HPLC method for the determination of the concentration of vancomycin in human serum. METHODS: Serum samples were centrifuged after serum protein was precipitated by 20% metaphosphoric acid. The separation was performed on Hypersil C18 column with mobile phase consisted of acetonitrile-0.012 5 mol?L-1 potassium dihydrogen phosphate buffer (10 ∶ 90) at flow rate of 0.8 mL?min-1. The detection wavelength was set at 236 nm and column temperature was set at 25 ℃. RESULTS: The average relative recovery rate of vancomycin in low, medium and high concentrations (2.5,30.8,150.4 mg?L-1) were 99.8%, 101.1% and 98.9% respectively. The inter-day and intra-day RSD were less than 2.5%(n=5). The limit detection of vancomycin in serum was 2.0 mg?L-1. The linear range was within 2.0~170.0 mg?L-1(r=0.999 8). CONCLUSION: The method is simple, accurate, and rapid for the monitoring and phamacokinetic studies of vancomycin in human serum.
6.Analysis of RR-Lorenz Plot in Patients of Sinus Rhythm With Long RR Interval
Jinyi XU ; Yanyan QIU ; Qiong CHEN ; Qingyi WANG ; Yaohan WANG
Chinese Circulation Journal 2014;(7):529-531
Objective: To explore the advantage of RR-Lorenz plot (RR-LP) in analyzing the patients of sinus rhythm with long RR interval.
Methods: A total of 308 RR-LP patients with long RR interval were retrospectively studied. The patients were divided into 7 groups according to the type of long RR intervals. ① Sinus bradycardia with arrhythmia group, n=63,②Repeated transient sinus arrest group, n=16, ③Ⅱ° sino-atrial block group, n=14, ④Ⅱ° atrial ventricular block (Ⅱ° AVB) group, n=47, ⑤ Un-passed atrial premature beats (APB) group, n=28, ⑥ Atrial premature beats group, n=72 and ⑦ Premature ventricular beats group, n=68. We analyzed the patients of RR interval greater than 1500 ms with ambulatory electrocardiogram record.
Results: ①RR-LP of sinus bradycardia with arrhythmia group showed a single distributing area with 1500 ms for the origin of transverse and longitudinal axis with B line slope at 1, tilt angle of 45°.②RR-LP of repeated transient sinus arrest,Ⅱ° sino-atrial block,Ⅱ° AVB and APB groups showed special four distributing areas with B line slope at (0.51 ± 0.01), tilt angle of (23.04 ± 0.50) °, B line slope at 0.6, tilt angle of (27°), B line slope at (0.57 ± 0.21), tilt angle of (25.69 ± 9.59)° and B line slope at (0.50 ± 0.01), tilt angle of (22.59 ± 0.54) ° respectively.③RR-LP of premature beats groups showed special four regional distributing areas, B line slope for atrial premature beats was at (0.38 ± 0.12), tilt angle of (17.06 ± 5.22) ° and B line slope for ventricular premature beats was at (0.07 ± 0.05), tilt angle of (3.02 ± 2.39) °.
Conclusion: RR-LP in patients of sinus rhythm with long RR interval had speciifc morphology and distribution features, the local abnormality could be found in a plane via all RR intervals which provided a differential diagnosis for repeated occurrence of short RR interval.
7.MOLECULAR CLONING AND DETERMINATION OF RICE MITOCHONDRIA 26s rRNA GENE IN ESCHERICHIA COLI JM101
Qiong XU ; Wang FANG ; Zhao JING ; Bin WANG ;
Microbiology 1992;0(06):-
Mitochondria DNA was isolated from darkgrown shoots of Xi Feng A according to the procedure reported previously. Mitochondria DNA was digested with EcoR1 completely, and ligated with pUC19 vector DNA which was digested with EcoR1. The ligated DNA was transformed into E. coli JM101. The transformants were selected on LB medium which containing ampicillin 50ug/ml. All of the bacterial clones were hybridized with 32P-labelled maize 26S rRNA gene, seven positive clones were obtained. The plasmid DNAs were isolated from the clones and digested with EcoR1 and southern transferred to NC paper. The membrance was hybridized with maize 26S rRNA probe. One clone which a shortest hybridization band (1.3kb) was named pXMT1.
8.Genetic analysis of chorionic villi specimen in spontaneous abortion using various methods
Qiong LEI ; Qiong WANG ; Canquan ZHOU ; Baojiang CHEN ; Zheng CHEN ; Yanwen XU ; Yanhong ZENG
Chinese Journal of Obstetrics and Gynecology 2009;44(4):253-256
Objective To explore the efficacy of multiplex ligation-dependent probe amplification (MLPA)combined with fluorescence in situ hybridization(FISH)and comparative genomie hybridization (CGH)combined with FISH in genetic analysis of chorionic villi specimen(CVS)of spontaneous abortion.Methods CGH+FISH and MLPA+FISH were used for genetic analysis of 29 CVS from spontaneous abortion and 6 normal CVS from selective abortion,in the mean time,those results were compared with conventional eytogenetic karyotyping.Results The report time were 40 hours in MLPA+FISH and 120 houm in CGH+FISH.The mean time of chorionic villi culture was(240±72)hours.The successful rate of specimen analysis were 97%(34/35)in CGH,100%(35/35)in MLPA,100%(35/35)in FISH and 91%(32/35)in conventional cytogenetic karyotyping.Apart from 1 case failed in CGH analysis,the results from MLPA+FISH were almost similar to that from CGH+FISH,however,that 1 specimen failed in CGH were detected successfully by MLPA+FISH.The discrepancy rate were 13%(4/31)in CGH+FISH and 12%(4/32)in MLPA+FISH respectively when compared with conventional cytogenetic analysis.Conclusions MLPA+FISH analysis present shorter detecting time and achieve 100%tale of successful report.This combined method was an important adjuvant approach to conventional cytogenetic karyotyping in CVS from spontaneous abortion.
9.Effects of dexmedetomidine continuous intravenous infusion on the hemodynamic response of ephedrine and the recovery process of patients undergoing neck surgery under general anesthesia
Qiong CHEN ; Wang XU ; Mengli ZHU ; Weiwei KE ; Lingbin LI
Chinese Journal of Biochemical Pharmaceutics 2016;36(9):82-84,88
Objective To investigate the effects of dexmedetomidine continuous intravenous infusion on the hemodynamic response of ephedrine and the recovery process of patients undergoing neck surgery under general anesthesia.Methods Select elective fitting line surgery under general anesthesia of 100 patients with cervical disease from January 2015 to December 2015 in the First People's Hospital of Yongkang,randomly divided into low dose group and high dose group, 50 cases in each group, before induction of anesthesia, patients received continuous intravenous pumping of dexmedetomidine 0.4μg/kg in low dose group or 0.8μg/kg in high dose group,after ten mins 0.4μg/kg prior to anesthesia induction,until the end of operation withdrawal;5 min after laryngeal mask insertion, ephedrine 0.1 mg/kg were intravenous administered in two groups.Observe the following indicators:the after entering the operation room ( T0 ) , anesthesia before induction ( T1 ) , after induction ( T2 ) , administration of ephedrine ( T3 ) , the maximum value time(TBP,THR) of heart rate and blood pressure in 10 minutes.Increased of HR,SBP,DBP,recovery related indicators.Results HR, SBP and DBP levels compared no significant difference of T0 with two groups,T1, T2 and T3,HR,SBP, DBP were lower than T0 with two groups(P<0.05),high dose group were lower than low dose group of HR, SBP, DBP(P <0.05);TBP and THR no significant difference of two groups,high dose group were higher than low dose group of Increased of HR,SBP,DBP(P<0.05);high dose group were lower than low dose group of after extubation cough score and sedation agitation score(P<0.05).Spontaneous breathing recovery time and extubation time, called the open time, orientation recovery time,the difference between the two groups was not statistically significant.Conclusion 0.8μg/kg dexmedetomidine continuous intravenous injection of ephedrine in patients with neck pressor effect stronger than the 0.4μg/kg,0.8μg/kg compared with 0.4μg/kg can reduce the recovery period of cough and restlessness,different doses had no effect on recovery.
10.Correlation between genital tract Ureaplasma urealyticum infection in pregnant women and fetal malformation
Yuhua ZHANG ; Chengwen LI ; Tishu LING ; Xu WANG ; Qiong WU
Chinese Journal of Tissue Engineering Research 2005;9(15):250-251
BACKGROUND: Ureaplasma urealyticum may cause female genital tracts infection and lead sterility, infertility and spontaneous abortion. But it still is not clear whether Ureaplasma urealyticum is one of the factors responsible for fetal malformation.OBJECTIVE: To investigate whether Ureaplasma urealyticum is one of the key factor responsible for fetal malformation.DESIGN: Non-randomized observation of compromised children and their parents with concurrent control.SETTING: The department of immunology and microbiology of a medical college.PARTICIPANTS: Totally 16 malformed fetuses(3 female and 13 male cases) and their parents were chosen from the family seeking pregnancy care in the Department of Gynecology and Obstetrics of the First Affiliated Hospital of Luzhou Medical College and Luzhou First People's Hospital from 1995 to 1997.METHODS: Ureaplasma urealyticum detection was performed in 16 samples of the umbilic blood of the malformed fetuses, sperms of the father, and cervical mucus of the mother who conceived the malformed fetus. The 11 couples positive for Ureaplasma urealyticum were treated with macrolides and aminoglycoside antibiotics and followed up for the outcome of the following pregnancy.MAIN OUTCOME MEASURES: The relation between Ureaplasma urealyticum infection and fetal malformation was examined.RESULTS: Totally 11 of the 16 umbilical blood samples(69% ) were positive for Ureaplasma urealyticum, and serological tests of parents in the 11 positive cases detected rubella virus, cytomegalovirus or Toxoplasma gondii antibodies, nor was abnormality found in chromosomal examination. The following pregnancies and delivery were followed up in 4 women, and the babies showed no functional or organic abnormities with good development till the age of 2 years.CONCLUSION: Female genital tract Ureaplasma urealyticum infection is related to fetal malformation, which provides evidence to support interventions of the occurrence of fetal malformation.