4.Molecular typing of Salmonella paratyphi A strains isolated in Hangzhou area from 2002 to 2013
Haoqiu WANG ; Wei ZHENG ; Hua YU ; Wei ZHANG ; Jincao PAN
Chinese Journal of Microbiology and Immunology 2017;37(1):57-61
Objective To analyze the molecular characteristics of Salmonella paratyphi A ( S. pa-ratyphi A) strains prevailing in Hangzhou area in recent years. Methods Pulse field gel electrophoresis ( PFGE) and multiple-locus variable-number tandem repeat analysis ( MLVA) were performed for molecular typing and epidemiological analysis of 72 S. paratyphi A strains isolated in Hangzhou area during 2002 to 2013. Results The 72 S. paratyphi A strains were divided into 11 PFGE ( by using restriction enzymes of Xba Ⅰ and Bln Ⅰ) and 6 MLVA types. Among the selected 34 variable number tandem repeat ( VNTR) sites, 4 sites (1188K, 2075K, 2201K and 4346K) showed high polymorphism, in which PFGE displayed a higher resolution than MLVA. Except for the 5 PFGE types of X4B5, X7B7, X8B8, X9B9 and X10B10, the other 6 PFGE types belonged to a same clone sharing a similarity of greater than 95%, and the S. Paratyphi A strains in that clone accounted for 93. 1% of the total strains isolated in Hangzhou. Conclu-sion The occurrence of paratyphoid A in Hangzhou area from 2002 to 2013 was mainly caused by S. para-typhi A strains belonging to the same clone. Combination of PFGE with MLVA was conducive to epidemiolog-ical investigation of paratyphoid A.
5.Hypoglycemic effects of Trigonella foenum-graecum on mice
Li-dong PAN ; Jian YANG ; Rong-hua LU ; Wei JIANG
Chinese Journal of Rehabilitation Theory and Practice 2004;10(11):662-663
ObjectiveTo study the effects of aqueous extract of Trigonella foenum-graecum(AET) on the blood glucose in normal and alloxan(ALX)-diabetic mice.MethodsFasting blood glucose and glucose tolerance in normal and ALX-diabetic mice were measured respectively 7 days after AET had been given.ResultsAET had not significantly effected the fasting blood glucose of normal mice, but improved their glucose toleranc. Otherwise, AET reduced fasting blood glouse of diabetic mice induced by ALX significantly.ConclusionAET can be used on treatment of diabetes mellitus.
6.Use of gentamicin solution in transurethral ureteroscopic lithotripsy to prevent postoperative infection
Ming CAO ; Jia-Hua PAN ; Hai-Ge CHEN ; Wei XUE ;
Chinese Journal of Infection and Chemotherapy 2007;0(05):-
Objective To evaluate the efficacy of gentamicin solution in transurethral ureteroscopic lithotripsy to prevent postop- erative infection.Methods Prospective clinical randomized control study was conducted.From July 2003 to June 2006,116 ca- ses of ureteral stones at high risk of postoperative infection were randomized into control group or gentamicin group.Patients in gentamicin group received gentamicin solution for washing in the operation.All the patients undergoing operation were followed up for 2 weeks after operation.Diagnosis of postoperative infection was based on clinical manifestations.Results A total of 109 patients received operation in all the 116 cases,including 58 cases in gentamicin group and 51 cases in control group.Thirteen cases of postoperative infection were identified in all the patients receiving operation (11.93%),3 cases in gentamicin group and 10 in control group.The incidence of postoperative infection was significantly different between the two groups (X~2= 5.3342,P=0.0209).Eight cases had positive bacterial culture.Of the microbiological isolates,2 were gram-positive bacteria, 5 gram-negative bacteria and 1 Candida albicans.Conclusions The most common pathogen causing postoperative infection after transurethral ureteroscopic lithotripsy is gram-negative bacteria.The use of gentamicin solution for washing in the operation can reduce the incidence of postoperative infection.
7.Microvenular hemangioma: report of a case.
Qian-he LIAO ; Hui-min AN ; Sheng-hua PAN ; Wei-hua LI
Chinese Journal of Pathology 2013;42(7):474-475
Actins
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metabolism
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Antigens, CD34
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metabolism
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Diagnosis, Differential
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Female
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Hemangioma
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metabolism
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pathology
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surgery
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Hemangiosarcoma
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pathology
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Humans
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Middle Aged
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Platelet Endothelial Cell Adhesion Molecule-1
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metabolism
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Sarcoma, Kaposi
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pathology
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Skin Neoplasms
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metabolism
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pathology
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surgery
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Vimentin
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metabolism
8.Molecular characteristics of Salmonella typhi and Salmonella paratyphi A isolates in Hangzhou area
Haoqiu WANG ; Jincao PAN ; Yumei GE ; Hua YU ; Wei ZHENG ; Wei ZHANG ; Dongmei MENG ; Jie YAN
Chinese Journal of Microbiology and Immunology 2012;32(8):711-715
Objective To determine the molecular characteristics of predominant Salmonella typhi and Salmonella paratyphi A strains prevalent in Hangzhou area from 2002 to 2008.Methods Pulse field gel electrophoresis (PFGE),multi-locus variable-number tandem repeat analysis (MLVA) and multi-locus sequence typing (MLST) were applied for typing as well as analysis of the molecular characteristics of 31 S.typhi isolates and 404 S.paratyphi A isolates from Hangzhou area during 2002 to 2008.Results The 404 S.paratyphi A isolates could be divided into six PFGE types (P1-P6).99.0% of the S.paratyphi A isolates (400/404) belonged to the same one clone family (P1 and P2 types),in which P1 strains occupied 93.3% (373/400) of the isolates.The 31 S.typhi isolates displayed a high diversity,which could be classified into 14 PFGE types,28 MLVA types with 90.3% resolving power and 3 MLST types.The S.typhi strains prevalent in Hangzhou area were similar to those in Southeast Asia but different from those in Europe.The variable number tandem repeat (VNTR) sites with high polymorphism,TR1,TR2 and Sal02,could be used to the markers for diagnosis of S.typhi isolates in the area.The MLST types of 31 S.typhi isolates included all the three types currently found in the world but the ST2 type of S.typhi strains was predominant (23/31,74.2%).Conclusion The paratyphoid A prevalence in Hangzhou area in the recent years is caused by infection of the same clone family of S.paratyphi A whereas the S.typhi strains prevalent in the area display a high diversity.
9.Efficacy observation of combination of Lumbrukinase Capsule and Probucol Tablet in treating cerebral infarction patients' unstable atheromatous plaque of the carotid artery.
Xiao-feng PAN ; Wei SHAO ; Guo-hua CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2011;31(11):1479-1482
OBJECTIVETo observe the effects of combination of Lumbrukinase Capsule (LC) and Probucol Tablet (PT) in treating cerebral infarction (CI) patients' unstable atheromatous plaque of the carotid artery.
METHODS150 patients were randomly assigned to the PT group and the LC group, 75 cases in each. Patients in the PT group took 0.5 g PT each time, twice daily. On the basis of PT, patients in the LC group also took 600 thousand U LC, thrice daily. The treatment course was 12 months for all. The serum levels of TC, TG, HDL-C, LDL-C, fibrinogen (FIB), and changes of the carotid atherosclerotic plaque were measured before treatment, 6 and 12 months after treatment. Meanwhile, adverse events were recorded.
RESULTSThe serum levels of TC, TG, and LDL-C were all lower 6 months after treatment than before treatment in the two groups, showing statistical significance (P < 0.05). The serum level of HDL-C was higher 6 months after treatment than before treatment in the two groups, showing no statistical significance (P > 0.05). When compared with before treatment in the same group, the serum level of FIB significantly decreased after treatment. Besides, there was statistical difference between the two groups (P < 0.05). There was no statistical difference in the serum levels of blood lipids or FIB between 12-month treatment and 6-month treatment in the same group (P > 0.05). The plaque effective rate in the LC group was superior to that of the PT group, showing statistical significance (P < 0.01). During the treatment period, the occurrence of cerebrovascular event was lower in the LC group than in the PT group (P < 0.05). Partial patients in the two groups had gastric discomfort.
CONCLUSIONSThe combination of LC and PT could prevent and treat arteriosclerosis, stabilize the plaque, effectively lower the occurrence of ischemic events. Its clinical application did not increase the risk of hemorrhage. It was safe and effective, worthy of spreading. It was necessary to further observe whether combination of LC and PT could increase side effects of the digestive tract.
Adult ; Aged ; Animals ; Biological Products ; therapeutic use ; Carotid Artery Diseases ; drug therapy ; Cerebral Infarction ; drug therapy ; pathology ; Female ; Humans ; Male ; Materia Medica ; therapeutic use ; Middle Aged ; Oligochaeta ; enzymology ; Plaque, Atherosclerotic ; drug therapy ; Probucol ; therapeutic use ; Serine Endopeptidases ; therapeutic use ; Treatment Outcome
10.Research about effect of spray drying conditions on hygroscopicity of spray dry powder of gubi compound's water extract and its mechanism.
Jie ZONG ; Qi SHAO ; Hong-Qing ZHANG ; Yong-Lan PAN ; Hua-Xu ZHU ; Li-Wei GUO
China Journal of Chinese Materia Medica 2014;39(4):663-668
OBJECTIVETo investigate moisture content and hygroscopicity of spray dry powder of Gubi compound's water extract obtained at different spray drying conditions and laying a foundation for spray drying process of Chinese herbal compound preparation.
METHODIn the paper, on the basis of single-factor experiments, the author choose inlet temperature, liquid density, feed rate, air flow rate as investigated factors.
RESULTThe experimental absorption rate-time curve and scanning electron microscopy results showed that under different spray drying conditions the spray-dried powders have different morphology and different adsorption process.
CONCLUSIONAt different spray-dried conditions, the morphology and water content of the powder is different, these differences lead to differences in the adsorption process, at the appropriate inlet temperature and feed rate with a higher sample density and lower air flow rate, in the experimental system the optimum conditions is inlet temperature of 150 degrees C, feed density of 1.05 g x mL(-1), feed rate of 20 mL x min(-1) air flow rate of 30 m3 x h(-1).
Desiccation ; methods ; Drugs, Chinese Herbal ; chemistry ; Hydrophobic and Hydrophilic Interactions ; Particle Size ; Powders ; chemistry ; Temperature ; Water ; analysis ; Wettability