1.Genotype analysis of ESBLs-producing Klebsiella pneumoniae isolates
Shu-Zhen CHEN ; Rong-Lin SHI ; Fen YAO ; Ying-Mu CAI ; Yuan-Su QIAN ;
Chinese Journal of Infection and Chemotherapy 2006;0(04):-
Objective To identify the genotypes of ESBLs-producing Klebsiella pneumoniae isolates from the First Affiliated Hospital,Shantou University Medical College.Methods The MICs of 10 antibiotics were determined by agar-dilution against the clinical isolates of ESBLs-producing K.pneumoniae.PCR were performed with specific primers for blaTEM,blaSHV, blaCTX-M and blaOXA respectively.PCR products were cloned and sequenced.Results The results of PCR showed that a- mong the 83 strains of ESBLs-producing K.pneumoniae,75 were positive for blaTEM,41 positive for blaSHV,25 poitive for blaCTX-M,9 positive for hlaOXA.Three genotypes were found in 13 strains(15.7%),2 genotypes in 59 strains (71.1%) and single genotype in only 11 strains(13.2%).The genes of CTX-M-3,TEM-1 and SHV were found co-existent in 9 strains. The strains carrying 2 or 3 ESBL genes were more resistant to antibiotics than those carrying only 1 ESBL gene.Conclusions The genotypes of ESBLs-producing Klebsiella pneumoniae in this hospital are blaTEM,blaSHV,blaCTX-M and blaOXA. Most strains carry 2 or 3 ESBL genes.
2.Efficacy of Granulocyte and Monocyte Adsorptive Apheresis for Treatment of Inflammatory Bowel Disease
Weiyan YAO ; Ying CHEN ; Shu CHEN ; Fenglai TAO ; Rui SHEN ; Yaozong YUAN ; Jie ZHONG
Chinese Journal of Gastroenterology 2017;22(3):163-167
The prevalence of inflammatory bowel disease (IBD) in China is increasing year by year, however, the efficacy and safety of commonly used therapeutic methods are limited.Granulocyte and monocyte adsorptive apheresis (GMA) is one of the effective methods for treatment of IBD used abroad, however, there is still lacking of such research in China.Aims: To investigate the efficacy and safety of GMA in IBD patients.Methods: A retrospective study was conducted in 21 cases of IBD patients [13 cases with ulcerative colitis (UC) and 8 with Crohn's disease (CD)] who accepted GMA treatment from May 2013 to July 2014 at the Shanghai Rui Jin Hospital.All the cases were poor responders to 5-aminosalycylic acid (5-ASA) or steroid-refractory.The clinical data were collected, and the clinical activity index (CAI), endoscopic activity index (EAI), laboratory parameters including serum albumin (Alb), hemoglobin (Hb), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), leukocyte count and percentage of neutrophils, as well as the adverse effects before and two weeks after the end of GMA treatment were analyzed.Results: After GMA treatment, both CAI and EAI were decreased significantly in UC and CD groups as compared with those before treatment (P all <0.05).Among laboratory parameters, Alb was increased in UC group and CRP was decreased in both UC and CD groups after treatment (P all <0.05).No significant differences were found in other laboratory parameters in both UC and CD groups before and after treatment (P all >0.05).The treatment was well tolerated with no severe adverse effects.Conclusions: GMA is safe and effective for ameliorating clinical symptoms, attenuating intestinal mucosal injury and controlling active inflammation in IBD patient that has not responded to 5-ASA or steroid treatment.Prospective clinical studies with large samples are needed to confirm these findings.
3.Effects and Safety of Metformin Combined with Vildagliptin on the Glycemic Control for Patients with Newly Diagnosed Type 2 Diabetes Mellitus
Zhen JIA ; Wang HE ; Weitao ZHANG ; Ying WANG ; Shu HAO ; Xiaoli YAO
Progress in Modern Biomedicine 2017;17(25):4900-4903
Objective:To study the effects and safety of metformin combined with vildagliptin on the glycemic control for patients with newly diagnosed type 2 diabetes mellitus.Methods:60 patients with type 2 diabetes mellitus who were treated from February 2015 to April 2016 were selected and divided into the control group and the observation group according to different treatment methods.The control group was treated with routine treatment.The observation group was treated with vildagliptin based on the control group.The blood glucose,glycosylated hemoglobin,two-hour postprandial blood glucose and serum as well as urinal amylase were measured before and after treatment,and the clinical curative effect of the two groups and the levels of interleukin-6,tumor necrosis factor and C-reactive protein were compared.Results:After treatment,the total effective rate of observation group was 90%,which was significantly higher than that of the control group(66.7%,P<0.05).After treatment,the serum interleukin-6,tumor necrosis factor,C-reactive protein and fasting blood glucose,glycosylated hemoglobin and postprandial blood glucose levels were significantly lower than those of the control group[(7.63± 1.12)dvs(8.68± 1.30)d;(7.23± 0.95)d vs(7.89± 1.20)d;(11.14± 1.56)d vs(12.12± 1.89)d];[(12.12± 1.89)d vs(ll.20± 1.34)d;(6.89± 0.96)d vs(8.23± 1.10)d;(1.65± 0.23)d vs(3.65± 0.48)d] (P<0.05).After treatment,the INS level of observation group was significantly lower than that of the control group (P<0.05) and the GLP-1 level was significantly higher than that of the control group (P<0.05).Conclusion:Metformin combined with vildagliptin could effectively control the blood glucose of patients with newly diagnosed type 2 diabetes and enhance the safety.
4.Viremia in infants with rotavirus diarrhea: a preliminary study
Ning LI ; Ying-Min YAO ; Shu-Juan WEN
Journal of Southern Medical University 2001;21(4):288-290
Objective To investigate the occurrence of viremia in infants with rotavirus diarrhea. Method The rotavirus ge- nome in the plasma samples of 60 infants with rotavirus diarrhea and in the peripherial blood mononuclear cells (PBMCs) of 14 out of the infants who showed abnormal serum enzyme levels were subjected to nest reverse transcriptase polymerase chain reaction test. Results One infant was found to be positive for rotavirus in the plasma and 3 in the mononuclear cells, and the latter 3 infants was negative for rotavirus in the PBMCs. Conclusion Rotavirus viremia may occur in infants with rotavirus diarrhea.
5.Viremia in infants with rotavirus diarrhea: a preliminary study
Ning LI ; Ying-Min YAO ; Shu-Juan WEN
Journal of Southern Medical University 2001;21(4):288-290
Objective To investigate the occurrence of viremia in infants with rotavirus diarrhea. Method The rotavirus ge- nome in the plasma samples of 60 infants with rotavirus diarrhea and in the peripherial blood mononuclear cells (PBMCs) of 14 out of the infants who showed abnormal serum enzyme levels were subjected to nest reverse transcriptase polymerase chain reaction test. Results One infant was found to be positive for rotavirus in the plasma and 3 in the mononuclear cells, and the latter 3 infants was negative for rotavirus in the PBMCs. Conclusion Rotavirus viremia may occur in infants with rotavirus diarrhea.
6.Using Delphi method to determine the questions and outcomes included in the Practice Guidelines for Individualized Medication of voriconazole
Ken CHEN ; Shu-Yao LIANG ; Ying-Ying YAN ; Yao-Long CHEN ; Suo-Di ZHAI ; Xiang-Lin ZHANG
The Chinese Journal of Clinical Pharmacology 2016;(4):368-369,381
Objective To define the questions and outcomes included in the Practice Guidelines for Individualized Medication of voriconazole and their importance ranking.Methods Using the Delphi method , experts were consulted in three rounds.Enthusiasm index , conformity indexes and authority indexes were calculated for quality control.Results Eighteen questions and 10 outcomes were defined.Recommendations of seven questions must be developed in the guideline.Four outcomes were ranked as “critical outcome”.Enthusiasm index was 90.5%.Authority indexes were all >0.75.Conformity indexes of only 2 questions and 2 outcomes were ≤15%.Conclusion Through Delphi method , questions and outcomes included in the Practice Guidelines for Individualized Medication of voriconazole were defined , which gives directions to guide-line development.
8.Effect of Magnesium Sulfate, Nifedipine Tablet Combined Salvia Injection on ET-1/NO, TXA2/PGI2 and Hemorheology of Preeclampsia Patients.
Xiao-ying ZHENG ; Jing YAO ; Jia-mei ZHU ; Mei LI ; Shu-qiong QIU ; Zhao-xia ZHU ; Ming ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(8):962-965
OBJECTIVETo observe the effect of magnesium sulfate, Nifedipine Tablet (NT) combined Salvia Injection (SI) on endothelin-1 (ET-1), nitric oxide (NO), thromboxane A2(TXA2), prostacyclin I2(PG2), and hemorheology of preeclampsia patients.
METHODSTotally 704 preeclampsia patients were randomly assigned to the treatment group and the control group, 352 cases in each group. All patients were treated with magnesium sulfate combined NT (on the first day: slow intravenous injection of magnesium sulfate 5 g + intravenous dripping of magnesium sulfate injection 10 g + oral administration of NT 30 mg; on the second and third day, intravenous dripping of magnesium sulfate injection 10 g + oral administration of NT 30 mg), while those in the treatment group were dripped with SI additionally at 20 mL per day for 3 consecutive days. Before and after treatment plasma levels of endothelin-1 (ET-1), nitric oxide (NO), TXA2, PGi2, and hemorheology indicators [such as high blood viscosity (HBV), low blood viscosity (LBV), plasma viscosity (PV), erythrocyte rigidity index (ERI), fibrinogen (FIB)] of two groups were detected.
RESULTSCompared with the same group before treatment, serum levels of ET-1, TXA2, HBV, LBV, PV, ERI, and FIB decreased in the two groups after treatment (P <0. 05), but levels of NO and PG2 increased (P <0. 05). Compared with the control group in the same period, levels of ET-1, TXA2, HBV, LBV, PV, ERI, and FIB decreased in the treatment group after treatment (P <0. 05), but levels of NO and PGI2 increased (P <0. 05).
CONCLUSIONMagnesium sulfate, NT combined SI could effectively regulate the balance of ET-1/NO and TXA2/PGI2, and improve hemorheology of preeclampsia patients.
Drug Therapy, Combination ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Endothelin-1 ; metabolism ; Epoprostenol ; metabolism ; Female ; Hemorheology ; Humans ; Injections ; Magnesium Sulfate ; administration & dosage ; pharmacology ; therapeutic use ; Nifedipine ; administration & dosage ; pharmacology ; therapeutic use ; Nitric Oxide ; metabolism ; Pre-Eclampsia ; drug therapy ; Pregnancy ; Salvia ; Tablets ; Thromboxane A2 ; metabolism
9.Combination of OCT and FFA for the research of pathogenesis of central serous chorioretinopathy
Jing-lin, ZHANG ; De-zheng, WU ; Bin-bin, WU ; Cui-qun, YAO ; Ru-long, GAO ; Shu-ying, HE
Chinese Journal of Experimental Ophthalmology 2011;29(8):724-727
Background The diagnosis of central serous chorioretinopathy (CSC) is mainly dependent onfluorescine fundus angiography (FFA). However, the combination of optical coherence topography (OCT) with FFA offers a new approach to the research of the pathogenesis of CSC. Objective This clinical study was designed to study the combined application of the FFA and OCT for the research of the pathogenesis of central serous chorioretinopathy (CSC). Methods Forty-four eyes of 44 patients with CSC were included in this study with 36 cases of males and 8 cases of female. The patients were aged 39.3 ± 5.3 years and the visual acuity was 0. 64 ±0. 27. FFA and OCT examinations were performed in all patients and the FFA images were imported into the Topcon 3D OCT 1000 device to locate the conformity of OCT lesions with the leakages of FFA. The neuroepithelial layer thickness at the fovea and the height of the neuroepithelial layer detachment were measured using 3-D OCT. Results OCT showed serous REP detachment in 34 eyes (77.3%) and rough surfaces of RPE in 10 eyes (22. 7% ). In thirtyfour eyes with RPE detachment, the OCT lesions and FFA leakage spots conformed to the same locations in 31 eyes, but the other three eyes did not. The mean foveal neuroepithelial thickness was (138.5±19.4) μm in CSC eyes and that of normal eyes was ( 131.35±5. 01 ) μm ,showing a significant difference between them( t=0. 39 ,P>0. 05 ). The mean height of neuroepithelial detachment was (263.3 ± 126.7 ) μm in CSC eyes. Conclusion RPE detachment occurs in CSC eyes and further induces macular neuroepithelial detachment. Leakage lesion of fluorescine corresponds to RPE detachment. CSC without RPE detachment may be related to the increase in RPE permeability. OCT can accurately measure the thickness of the macular neuroepithelial layer and the height of the neuroepithelial detachment.
10.Based on supramolecular chemistry to explore the scientific connotation of the compatibility between licorice and the insoluble mineral medicine gypsum
Yao-zhi ZHANG ; Wen-min PI ; Lin-ying WU ; Lu-ping YANG ; Shu-chang YAO ; Xiang ZHANG ; Xue-mei HUANG ; Peng-long WANG
Acta Pharmaceutica Sinica 2024;59(4):1048-1056
Licorice-gypsum (gancao-shigao, GC-SG) drug pair was used as the research object, using supramolecular chemistry to explore the scientific connotation of combining herbal medicine GC with insoluble mineral medicine SG in clinical application of traditional Chinese medicine. ① The Tyndall effect, microscopic morphology and particle size of the single and co-decocted of GC and SG were observed, the paste content and conductivity were determined, and the interaction between GC and SG was detected by isothermal titration calorimetry (ITC) and infrared absorption spectroscopy (IR). ② Calcium chloride (CaCl2), a soluble calcium salt of equal gypsum quality, was used instead of SG with GC for co-decocting to explore the effect of calcium salt content on the water decocting, and the characteristics were combined with the Tyndall effect, microscopic morphology, paste content and conductivity. ITC and IR techniques were used to detect the interaction between the two, and the interaction between them was detected by ITC and IR. The zeta potential and ultraviolet-visible spectrophotometry (UV-vis) of GC-SG and GC-CaCl2 co-decoction were compared, and the inorganic and organic components in the co-decoction were detected by inductively coupled plasma optical emission spectrometer (ICP-OES) and high performance liquid chromatography (HPLC). The results showed: ① Compared with the liquid phase of single decoction, GC-SG co-decoction had more obvious Tyndall effect, and showed uniform spherical nanoparticles under electron microscope. Physical characterization results such as paste content and conductivity showed that co-decoction promoted the dissolution of each other's components; ITC and IR results showed that there was strong interaction between GC and SG, which preliminatively indicated that GC and SG co-decoction promoted the formation of uniform and stable supramolecular system of traditional Chinese medicine. ② When soluble calcium salt was used to substitute insoluble SG with GC for co-decocting, a stronger but astigmatic light path appeared than single decocting solution, the zeta potential was reduced, and a large number of accumulated polymers were formed. The results of paste content and conductivity showed that the dissolution of the co-decocting component was reduced than the single decocting component. ITC, UV-vis and IR results showed that there was interaction between GC with Ca2+ and SG. The formation of polysink indicated that a large amount of soluble calcium salt would destroy the stability of supramolecular Chinese medicine. The results of ICP-OES and HPLC showed that the glycyrrhizic acid (GA) content of the former lower than the latter, which was related to the formation of a large number of polycondensates with the increase of Ca2+ concentration and the decrease of the dissolution of GA and other active ingredients. This study indicates that the compatibility of GC and SG can form a uniform and stable supramolecular system of traditional Chinese medicine. Calcium salt, the main component of SG, is taken as the starting point. Excessive soluble Ca2+ can promote the aggregation of active ingredients such as GA, so as to reveal the scientific connotation of the compatibility of GC and SG, an insoluble mineral medicine.