1.Clinical Observation on 67 Early Pregnancy Women Treated by Medicinal Abortion Combined with Fugong Decoction
Cuixia GAO ; Cuiying ZHANG ; Shiying YANG
Journal of Traditional Chinese Medicine 1992;0(08):-
Objective To observe the effect of Fugong Decoction(Decoction for Uterine Restroation) as assistant therapy of medicinal abortion for early pregnancy.Methods The 134 early pregnancy women who were volunteers of medicinal abortion were randomized into a treatment group and a control group with 67 cases in each.The control group was treated with Mifepristone and Misoprostol while the treatment group treated with Fugong Decoction based on these drugs.Totally they were treated for 7 days.The abortion effect,volume of vaginal bleeding,bleeding time,and time of urine human chorionic gonadotrophin(HCG) changed to negative were observed.Results In the treatment group,the time of discharge of gestational sac,volume of vaginal bleeding,bleeding time,time of urine HCG changed to negative,and abortion effect were all better than those of the control group,with significant difference(P
2.Effects of selective iNOS inhibitor 1400W on expired nitric oxide and plasma nitrate concentration in a porcine model of endotoxemia
Yan YANG ; Shanglong YAO ; Shiying YUAN
Chinese Journal of Anesthesiology 1996;0(08):-
Objective To study the effects of selective inducible nitric oxide synthase (iNOS) inhibitor 1400W on nitric oxide (NO) exhalation and plasma nitrate concentration during endotoxemia in pigs. Methods Fourteen pigs of both sexes aged 12-16 weeks, weighing 40-60 kg were randomly divided into two groups : ( Ⅰ ) endotoxemia group ( n = 6) and ( Ⅱ ) 1400W group ( n = 8). The animals were anesthetized with pentobarbital and ketamine, intubated and mechanically ventilated. PaC02 was maintained at 35-45 mm Hg. Femoral artery and portal vein were cannulated for BP monitoring and blood sampling. E coli (LPS 20 mg L-1 ) was continuously infused iv at 4 ml h-1 for 24 h in both groups. In 1400W group, at 12 h of LPS infusion, continuous iv infusion of 1400W was started at 0.5 mg kg-1 h-1 . Blood samples were taken from artery and portal vein before LPS infusion (T0) and at 12 h (T, ) and 24 h (T2) of LPS infusion for determination of plasma nitrate concentration. Expired NO concentration was measured using NOA 280 NO analyzer. Results 1400W decreased LPS-induced increase in expired NO (P 0.05). Conclusion The selective iNOS inhibitor 1400W can inhibit iNOS activity and lead to decreased NO production.
3.Heteromorphism of Indomethacin Solvate and Characterization Method
Yongliang LI ; Shiying YANG ; Kun HU ; Yang LYU
Herald of Medicine 2015;(6):785-790
Objective To systematically study solvatomorphism of indomethacin and provide a scientific basis for the quality control of the solvated impurities in this drug. Methods By changing the recrystallization solvent, solvent volume, recrystallization temperature, time and pressure, nine solvates and four non-solvated forms were discovered and prepared. The differential scanning calorimetry (DSC), thermogravimetric analysis ( TGA), X-ray powder diffraction ( PXRD) and infrared spectrometry (IR) were introduced for characterization analysis. Furthermore, the test of influencing factors was used to explore the stability of solvate crystal form and the crystal transformation rules among them. Results Nine solvates were prepared, which including two solvates reported for the first time in this work. Results showed that crystal forms of the 9 solvates have different types or proportions of crystal solvents according to the various results of DSC, TGA, PXRD and IR. Moreover, the nine solvates prepared in this work were metastable crystal forms which could be transformed to non-medicinal forms. Conclusion The composition, thermodynamic property and transformation rule of all the solvates are elucidated in this work. In addition, an effective method for qualitative or quantitative analysis of these solvates was established. The standard graphs and data were used as basic data and scientific basis for the solvate control in the manufacturing of indomethacin.
4.The respiratory mechanics assessment of intraendotracheal tube suctioning in ventilated children
Xiaohong CHENG ; Shiying YANG ; Hongyan XIE ; Fang SONG ; Fengwu KUANG
Chinese Pediatric Emergency Medicine 2001;8(1):16-17
Objective To evaluate the effectiveness of intratracheal tube suctioning by respiratory mechanics measurement.Methods The indexes of respiratory mechanics,including respiratory rate,expiratory tidal volume,% leak around the tube,dynamic respiratory compliance and mean airway resistance were measured just before and 20 minutes after intraendotracheal tube suction in mechanical ventilated children with respiratory failure.Results Fifty-two measurements was carried out in 11 patie nts.The mean values of respiratory risistance was (116.73±27.12)cmH2O/L.s before suctioning and (93.38±26.64)cmH2O/L.s after suctioning,with significant differrence(P<0.01);The mean values of % leak around the tacheal tube dereased from(18.12±4.12)% before suctioning to (8.71±3.76)% after suctioning (P<0.05),The mean values of expiratory tidal valume was markedly increased from(7.31±2.12)ml/kg before suctioning to(5.72±1.2)ml/kg after suctioning(P<0.01),The total respiraory rate markedly decreased after suctioning.Conclusion The respiratory mechanics measurement is very useful to evaluate the airway patient.The removal of secretions is crucial in respiratory managemet.
5.Creation of a special medical service mechanism for large international sport events
Yang LI ; Shiying XUAN ; Tongqin HAN ; Qian GAO
Chinese Journal of Hospital Administration 2009;25(6):379-381
For medical service provision for the Olympic Games, a special medical service mechanism for important international sport events eventually took shape, based on task analysis and medical services provided in test games for two years including 2006 and 2007 Qingdao Sailing Regatta. This mechanism features the following: First, "7-Special" sport event medical practice - Medical zones, medical teams, service flows, service signs, medical papers, and drug management, all exclusively earmarked for the event; Second, medical services up to international standard; Third, special flows for medical rescue; Fourth, Special system for information reporting. Thanks to this special mechanism, the hospital provided its medical assurance for the Olympic Games successfully, and upgraded its routine medical services as a result.
6.Preparation, transfer property and biocompatibility of the hollow fiber dialysis membrane
Shiying WANG ; Xinxin ZHAO ; Jun SHI ; Suxia YANG ; Zhiqiang SUN
Chinese Journal of Tissue Engineering Research 2017;21(2):268-272
BACKGROUND:Polysulfone membrane holds good anti-biodegradation ability, but how to use it to prepare hol ow fiber dialysis membrane and its blood compatibility have not been ful y understood. OBJECTIVE:To study the preparation, transfer property and biocompatibility of hol ow fiber dialysis membrane. METHODS:With polysulfone as the film material, diethylene glycol as the porogen, polyvinyl pyrrolidone as the modifier, N, N-dimethylacetamide as the solvent, and the hol ow fiber dialysis membrane was prepared using nonsolvent-induced phase separation. The performance was measured using scanning electron microscopy, ultra-depth three-dimensional microscope imaging and porosity test;the transfer parameters including reject rate and water flux were detected by ultrafiltration device;the blood compatibility was determined through hemolysis test, dynamic clotting time test and platelet adhesion test. Type II medical polyurethane material served as negative control. RESULTS AND CONCLUSION:The section of hol ow fiber dialysis membrane was asymmetric. 17%dialysis membrane showed a porous middle layer, while 19%, 21%and 23%membrane showed a sponge-like middle layer. Under the same membrane area, the density of fiber dialysis membrane was significantly lower than that of the negative control material, and the porosity of fiber dialysis membrane was significantly higher than that of the negative control material (P<0.05). The water volume and water flux of the hol ow fiber dialysis membrane were significantly higher than those of the negative control material (P<0.05). Results from three hemolytic tests showed that the average absorbance values and hemolysis rate of the hol ow fiber dialysis membrane were significantly higher than those of the negative control material (P<0.05). The dynamic clotting time test and the platelet adhesion test revealed that the dynamic clotting time of hol ow fiber dialysis membrane at 20, 40 and 70 minutes was significantly shorter than that of the negative control material (P<0.05). These results suggest that polysiloxane can be used as the membrane material to prepare hol ow fiber dialysis membrane using nonsolvent-induced phase separation, and holds a good biocompatibility, blood compatibility and transfer efficiency.
7.Impact of epidural anesthesia with levobupivacaine at different concentrations combined with general anesthesia on colon surgery
Zhen CHEN ; Xinxin SHAO ; Haihua SHU ; Liangcan XIAO ; Shiying YANG
The Journal of Practical Medicine 2015;(20):3419-3422
Objective To evaluate the impact of epidural anesthesia with levobupivacaine combined with general anesthesia on colon surgery. Methods Sixty patients undergoing elective radical procedure for colon carcinoma were randomLy divided into four groups: saline group (group S), 0.125% levobupivacaine group (group L1), 0.25% levobupivacaine group (group L2), and 0.5% levobupivacaine group (group L3). Group S received normal saline of 10 mL epidurally and then infusion of 5 mL·h-1 until the procedure was finished; groups L1, L2, and L3 received levobupivacaine instead. Anesthetic induction was performed after epidural puncture. Mean blood pressure and heart rate were recorded at 8 time points including 5 min after entering into the operation room, 1 min after intubation, skin incision, abdominal exploration, 1 h after skin incision, completion of operation, extubation, and leaving PACU; meanwhile blood glucose and cortisol were detected, anesthesia time, time to PACU stay, bleeding, transfusion volume, adverse reaction, and doses of propofol, remifentanil, ephedrine, and fentanyl were noted. Results Time to PACU stay was longer in S group than in other 3 groups. Doses of remifentanil and fentanyl were larger in L1 group than in L2 group and L3 group. Ephedrine dose in L3 group was larger than in other 3 groups. Blood sugar in L1 group was higher than L2 group and L3 group. Cortisol in S group was higher than in other 3 group. Cortisol in L1 group was higher than in L3 group. The number of patients with hypotension was greater in L3 group than other 3 groups. Conclusions Continue epidural infusion of 0.25%levobupivacaine can reduce stress response and opioid uses, shorten PACU stay, whereas it does not increase use of ephedrine.
8.Kidney cancer stem cells and epigenetic regulation
Lei SONG ; Zhong GUO ; Shiying YANG ; Jin ZHAO
Chinese Journal of Clinical Oncology 2013;(23):1477-1480
Targeted therapeutic strategy for cancer stem cells (CSCs) is the key to prevent tumor relapse and metastasis. The im-portant roles of epigenetic regulation on the development of stem cells and gene reprogram of somatic cells suggest that this process may remarkably affect the occurrence and development of CSCs. The epigenome, which comprises DNA methylation, histone modifica-tions, chromatin structures, and non-coding RNAs, controls gene expression patterns. In renal cell carcinoma (RCC), aberrant changes occur in the epigenome. To date, cells with CSC properties from RCC have been successfully isolated using different methods, such as sorting using the Hoechst 33342 side population, forming tumor spheroid, and sorting CD105 cell surface biomarker. According to the progress in genetic studies on RCC, in addition to DNA sequence, the abnormality in the regulatory mechanism has considerable func-tions in tumor progression. Epigenetic changes may be integral to the behavior of cancer progenitor cells and their progeny. Knowledge on epigenetics in renal tumorigenesis process is beneficial in the development of new therapeutic modalities and may deliver new prog-nostic and early diagnostic markers. This paper reviews the latest development in the study of RCC stem cells and the underlying mech-anisms of epigenetic regulation on the development of CSCs in RCC.
9.THE PREVENTIVE AND THERAPEUTIC EFFECTS OF SILK FIBROIN ACTIVE PEPTIDES ON ACUTE ALCOHOLISM IN MICE
Fengjuan ZHOU ; Shiying XU ; Ruijin YANG ; Zhang WANG
Acta Nutrimenta Sinica 2004;0(05):-
Objective:To study the preventive and therapeutic effects of silk fibroin peptides (SFP) on acute alcoholism in mice. Methods:In first experiment, the mice were randomly divided into four groups, and every group was treated by 56o alcohol (ethanol dosage 7.56 ml/kg bw) via i.g. Eighty mice were fed normal saline (NS) and different dosages of SFP (0.1, 0.5, 2.5 g/kg bw) 30 min later respectively, then the rate of ebriety and time of sobriety were determined. Another 72 mice were also divided into four groups and given NS and SFP similarly. The concentration of ethanol in serum was measured 1 h, 2 h and 4 h later respectively. In second experiment, the mice were also divided into four similar groups, but 56o alcohol was given at 6.16 ml/kg?bw via i.g. NS and SFP were given similarly, 0.5 h before alcohol. Two experiments were performed to observe the effect of SFP on prevention of temulence. Results:The time of sobriety and concentration of ethanol of SFP groups fed 0.5 and 2.5g/kg bw were lower significantly than those of NS group (P
10.EFFECTS OF SECOISOLARICIRESINOL ON PROLIFERATION OF BREAST CANCER MCF-7 CELLS
Wenbin ZHANG ; Zhang WANG ; Ruijin YANG ; Rongrong LU ; Shiying XU
Acta Nutrimenta Sinica 2004;0(05):-
Objective To observe the effects of secoisolariciresinol (SECO) and its metabolites, enterolactone (ENL) and enterodiol (END), on proliferation of MCF-7 cell line and to the probable mechanism. Method Effect of SECO, END, ENL and genistein (GEN) on MCF-7 proliferation was investigated by MTT assay. Cell cycle arrest was measured by flow cytometry (FCM). Cell morphology was observed by optical microscope. The anticarcinogenic mechanism of SECO was analyzed. Results SECO had promotive effect on the cell growth at lower concentration (≤40 ?mol/L) but inhibition effect at higher concentration (100 ?mol/L). ENL and END, however, showed significant inhibition effect at all tested concentrations (10~100?mol/L). The cell cycle progression was arrested at G2/M phase and apoptosis was observed by optical microscope. Conclusion Effect of SECO on the MCF-7 cell proliferation depends on its concentration. Inhibition effect of SECO may relate to its metabolites ENL or END.