1.Development of rapid search device for case material
Weidong LI ; Daming QIN ; Zheng LI
Chinese Medical Equipment Journal 2003;0(11):-
Case material search system is mainly used in the rapid search,tracing and location of field medical cases including all material in it.It can timely determine the location and volume of medical material when they are in transportation,airdrop and mobile outspread so as to improve the rescue support ability for the wounded.
2.STUDIES ON THE CHARACTERISTICS OF A MODERATELY THERMOACIDOPHILIC IRON-OXIDIZING BACTERIVM
Microbiology 1992;0(06):-
A moderately thermoacidophilic iron-oxidizing bacterium,designated as strain MLY,was isolated from a coal spoil heap in China.The optimum of temperature for growth is 50℃~54℃.The optimum of pH is 1.2~1.4.The strain MLY is facultative autotroph and grows heterotrophically on yeast extract.It is able to oxidize ferrous iron(Fe 2+ ),pyrite(FeS 2),and elemental sulfur(S 0) autotrophically and mixotrophically in the presence of yeast extract.Autotrophic oxidation of elemental sulfur is relative weak.The comparison of ferrous iron and pyrite oxidation between strain MLY and A10 Thiobacillus ferrooxidans,strain indicated that MLY is one time faster than A10.
3.Clinical value of C - reactive protein, erythrocyte sedimentation rate and white blood cell count in patients with ocular syphilis
Ya-Li, LI ; Yuan-Yuan, YANG ; Mei-Qin, ZHENG
International Eye Science 2016;16(11):2169-2170
AIM:To explore the clinical value of combined detection of C-reactive protein ( CRP ) , erythrocyte sedimentation rate ( ESR) and white blood cell ( WBC) count in patients with ocular syphilis.
METHODS:Dates of CRP, ESR, WBC, TPPA and RPR of 51 ophthalmopathy patients caused by syphilis and 50 normal control from Jan. 2012 to Dec. 2015 in eye hospital were recruited and analyzed statistically.
RESULTS:The positive rates of CRP, ESR and WBC of oculopathy patients were 16%, 18% and 39%, respectively, which were higher than those in the control group. In patients group, the positive rate of ESR was higher than CRP and WBC. There were no obvious relationships between RPR titers and positive ratios of CRP, WBC and ESR.
CONCLUSION: The blood level of CRP, WBC and ESR may have certain help in estimating and monitoring condition of patients with ocular syphilis.
4.Diagnosis and treatment of blunt pancreatic injury:a report of 32 cases
Changjiang QIN ; Songluo SUN ; Shijie LI ; Li ZHENG ; Wanli MA
Chinese Journal of General Surgery 2001;0(09):-
Objective To explore the methods for early diagnosis and treatment of blunt pancreatic injury.Methods The clinical data of 32 patients with blunt pancreatic injury treated in our hospital from Janurery 2004 to Janurery 2009 were retrospectively analyzed.Results The conformity diagnosis rate of CT was 79.3%.Four cases received nonoperative treatment including 3 cases of grade I and 1 of grade II injury.A total of 28 cases with blunt pancreatic injury underwent operation: 5 grade I and 7 grade II cases underwent debridement and drainage;among the patients with grade Ⅲ injury,4 underwent distal pancreatectomy in combination with splenectomy,and 2 pancreatectomy with spleen preservation;amongst the 5 patients with grade Ⅳ injury,4 underwent Roux-en-Y pancreaticojejunostomy and 1 underwent distal pancreatectomy in combination with splenectomy;of the 5 patients with grade Ⅴ injury,1 case was operated on using duodenorrhaphy and diverticulization,2 underwent the Whipple′s procedare and 2 had damage control surgery.Three patients died of multiple organ failure,and complications occurred in 19(76.0%).Pancreatic fistula and pancreatic pseudocysts were the main complications.Conclusions In the absence of major pancreatic ductal injury,and the clinical conditions were stable,pancreatic injuries can be treated with nonoperative management.Operative treatment is suitable for severe blunt pancreatic injury.Appropriate operation,based on patient condition and the classification of pancrecatic trauma,is the key to increase the cure rate and decrease mortality rate.
5.Effects of indomethacin on human choroidal melanoma OCM-1 xenografts in nude mouse
Xin-rui, LUO ; Hao, CHEN ; Qin-xiang, ZHENG ; Ling, QIN ; Min, LI ; Wen-sheng, LI
Chinese Journal of Experimental Ophthalmology 2011;29(1):8-12
Background Choroidal melanoma(CM)is a common form of primary ocular cancer in adults.It is reported that indomethacin has inhibitory effect on many tumor in vitro and in vivo,but whether it can inhibit the growth of CM has not been published. Objective This study was to investigate the anti-tumor activity of indomethacin on the growth of human CM OCM-1 cell xenografts in nude mice. Methods OCM-1 cells were subcutaneously implanted on 24 SPF female BALB/C.nu/nu nude mice to establish ectopic models of human CM.The nude mice with the tumor 5 mm were randomly divided into 4 groups:untreated group,normal saline solution(NS) group,indomethacin 1 ms/kg group,indomethacin 2 ms/kg group.The 1 mS/kg or 2 ms/kg indomethacin was intraperitoneally injected for 14 consecutive days in indomethacin 1 ms/kg group and indomethacin 2 me/kg group respectively.and 0.2 ml of 2%NS-DMSO was used at a same way in the NS group.No any agent was used as the untreated group.The volume and weight of implanted tumor as well as inhibitory rates of indomethaein on tumor were calculated.The expression of ki67 and survivin proteins were measured with immunohistochemistry,and the expression of survivin mRNA in CM was assessed by RT-PCR. ResuIts The tumor of indomethacin treatment group was reduced in volume and weight with a significant difference between treatment group and control group as well as indomethacin 1 ms/ks group and indomethacin 2 ms/kg group(P<0.05).The inhibitory rate of indomethacin 1 ms/kg and 2 ms/kg for tumor was 22.86%,48.00%respectively.The prolifiration index (PI)of ki67 in these 4 groups were (76.73±3.34)%,(73.30±2.95)%,(55.97±2.24)%,(32.87±2.91)%respectively,and significant difference was found in PI between indomethacin 2 mg/kg group and untreated group or NS group(P<0.05),but there was not significant difference between indomethacin 1 mg/kg and 2 ms/kg group(P>0.05).Compared with the control group,the indomethacin treatment groups showed the decreased expression of survivin protein and mRNA,and significant difference was found between indomethaein 2 ms/kg group and untreated group or NS group(P<0.05),however,no significant difference was found between indomethacin 1 mg/kg and 2 mg/kg group(P>0.05). Conclusion Indomethacin inhibits the growth of CM in nude mice through inhibiting the expression of survivin in the tumor and accelerating cell apoptosis and inhibiting tumor cell proliferation.
6.Study on immunogenicity of B cell epitopes of Epstein-Barr virus latent membrane protein-2
Wenshu LI ; Meixia ZHENG ; Qin OU ; Shanli ZHU ; Lifang ZHANG
Chinese Journal of Infectious Diseases 2010;28(10):587-592
Objective To analyze the immunogenicity of selected B-cell epitopes of Epstein-Barr virus (EBV) latent membrane protein-2 (LMP2). Methods Three potential dominant B-cell epitopes of LMP2199-209, LMP2318-322 and LMP2381-391 from EBV LMP2 had been predicted using bioinformaties methods. The gene fragments of three epitopes were cloned respectively into pET32a(+) vector and transformed into E. coli strain BL21 (DE3). After identification by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and immunoblotting, the expression products were purified by Ni-NTA agarose affinity chromatography. BALB/c mice in immunized groups were immunized by multi-point intracutaneous injection with the three purified epitope proteins,respectively; and mice in control groups were injected with pET32a (+) protein or phosphate buffered saline(PBS), respectively. The sera from mice at week O, week 3 and week 6 of injection were collected for determination of epitope-specific antibody IgG by enzyme linked immunosorbent assay (ELISA) using epitope proteins as coating antigens. The ability of serum antibody recognizing nature EBV antigen was determined at week 6 of immunization. Results Three epitope proteins of LMP2199-209 ,LMP2318-322 and LMP2381-391 were successfully expressed in prokaryotic system. Epitopespecific antibodies IgG could be detected respectively in the sera of all immunized mice, and the levels of antibodies increased with immunized time increasing. The antibody levels in LMP2318-322 immunized group at week 3 and week 6 were significantly higher than that of pET32a (+) protein control group (F= 493.85 and 773.99, respectively; both P<0. 05), and the antibody levels in LMP2381-391 immunized group at week 3 and week 6 were also significantly higher than that of pET32a (+) protein control group (F= 926.33 and 309.14, respectively; both P<0.05). Antibody level in LMP2199-209 immunized group at week 6 was significantly higher than that of pET32a ( + ) protein control group (F=87.27, P<0.05). The antibody IgG in serum from immunized mice with three epitope proteins could all recognize nature EBV antigens, especially LMP2199-209 and LMP2381-391 immunized groups.Conclusions Three possible dominant epitopes of LMP2199-209, LMP2318-322 and LMP2381-391 from EBV LMP2 are prepared by prokaryotic expression system and exhibit obvious immunogenicity, which could be used for further research of EBV infection and related tumor vaccine.
7.Outcome of radical operation on Hirscbsprung disease:laparotomy versus modified Soave procedure
Chongjiang QIN ; Songluo SUN ; Wanli MA ; Li ZHENG ; Dahan LIU
Chinese Journal of Postgraduates of Medicine 2009;32(26):26-28
Objective To make a comparison between the outcome of modified Soave procedure and laparotomy on Hirschsprung disease(HD)in children.Method Chose the 21 eases who underwent transanal modified Soave procedure(modified Soave procedure group)and 25 eases had done by laparotomy (laparotomy group)from January 2001 to January 2007,clinical data of two groups were compared.Results Modified Soave procedure group showed lower level of IL-6 and CRP[(10.7±1.6)ng/L,(27.7±4.1)mg/L]on 48 h postoperation than laparotomy group[(22.0±2.3)ng/L,(73.7±15.0)mg/L](P < 0.01).The mean operative time,hospital stay,the mean time of anal aerofluxus and the cost of hospitalization in modified Soave procedure group were much shorter than those in laparotomy group(P< 0.01).While the complication rate of two groups had no statistical difference.Moreover,there were no significant difference of rectal high pressure zone length and resting anal canal pressure between two groups at 1 year after operation.Conclusion Transanal modified Soave procedure for HD is a minimal invasive surgery,especially in young patients with short-segment type and common type of HD.
8.Diagnosis and treatment of solid-pseudopapillary tumor of the pancreas in children
Huijuan WANG ; Huanmin WANG ; Hong QIN ; Zheng ZHAO ; Jun LI
Chinese Journal of General Surgery 2008;23(11):856-858
Objective To discuss the clinical manifestations, diagnosis and treatment of solidpseudopapillary tumor of the pancreas (SPTP) in children. Methods Clinical data of 12 cases of SPTP admitted to Beijing Children's Hospital from Mar 2001 to Mar 2007 were collected and analyzed retrospectively. Result There were 7 females and 5 males among the patients. The mean age was 13.6 years. The main symptoms were abdominal pain and mass. Tumors located in the head in 4 cases, in the body and tail of the pancreas in 8 cases. Five cases underwent tumor enucleations, one case underwent body resection of the pancreas, two cases underwent Whippple's procedure including one recurrent case, five cases underwent body and tail resection of the pancreas plus splenectomy. All these 12 cases were followed up for 6 months to 6 years. One case lost follow-up 6 months after body and tail resection of the pancreas plus spleneetomy. Another one suffered from live tumor one year after operation and refused surgical exploration and lost follow-up. The other 10 cases were still alive. Conclusion SPTP are predominantly seen in adolescent females. For its benign clinical behavior and relatively good prognosis, surgical resection is the main choice of therapy.
10.Clinical observation of low molecular weight heparin combined with astragalus injection in the treatment of diabetic nephropathy
Zheng LI ; Hua MENG ; Mei CHEN ; Qian ZHANG ; Qin HUANG
Chinese Journal of Primary Medicine and Pharmacy 2016;23(8):1165-1167
Objective To observe the effect of low molecular weight heparin calcium combined with astraga-lus injection in the treatment of diabetic nephropathy.Methods From January 2013 to December 2014,78 patients with stage III diabetic nephropathy in our hospital were enrolled into the study.They were randomly divided into con-trol group(41 cases) and treatment group(37 cases).The control group received general therapy,such as low protein diets,compound alpha keto acid,insulin,irbesartan,simvastatin.The treatment group was treated with low molecular weight heparin calcium and astragalus injection on the basis of general therapy.The changes of urinary albumin and 24 hours urinary protein after treatment in the two groups were observed.Results After treatment,the negative rate of urinary micro albumin in the treatment group ( 75.68%) was significantly higher than that of the control group (29.27%)(χ2 =16.765,P<0.01).24 hour urinary protein of the treatment group[(176.2 ±82.3)mg/24h]was significantly lower than that of the control group[(223.8 ±87.8)mg/24h](t=2.471,P<0.05).Conclusion Low molecular weight heparin calcium combined with astragalus injection can reduce the proteinuria of diabetic nephropa-thy,it is an effective intervention therapy for early diabetic nephropathy.