The ScFv gene containing Nco I and Bam HI was amplified by PCR, and inserted into the prokaryotic expression vector pHOG21 with Nco I and Bam HI digestion. After screening, high-level expression recombinant XL1-Blue (pHOG2E3) were obtained, and the different expression levels of ScFv were detected by SDS-PAGE and EUSA. When the strain was induced by 0.5 mmol/LIPTG and 0.4mol/L sucrose in the culture medium LB at 37℃ for 6 hours, the high level production of ScFv protein was obtained. The molecular weight of the expressed ScFv is 31, 000 D. The ScFv was mainly in the form of inclusion body, but it could also be in the culture medium and soluble periplasmic content. Above all, the ScFv protein could neutralize the phospholipase C activities of alpha-toxin of Gostridium perfrigens type A.

Aged ; Chondrosarcoma ; Humans ; Laryngeal Neoplasms ; Male ; Middle Aged

Humans ; Immunoglobulin E ; Mouth Diseases ; Syndrome

Objective To study the clinical significance of P - selection expression in children with viral encephalitis and the correlation between this expression and the cerebral infarction with critical viral encephalitis. Methods Flow cytometric was employed to detect the expression of P- selection on the surface of platelet membrane in 44 children with viral encephalitis(20 light patients and 24 critical patients) and 20 healthy control children. The area of the cerebral infarction was determined by computed tomographic scan in 20 patients with critical viral encephalitis. The correlation between the two variables was analyzed. Results The expressions of P - selection on the surface of platelet membrane on less than 5 days and on 2 weeks after the onset of viral encephalitis were significantly higher in critical patients than those in normal control children and light patients( P

Objective To explore the clinical significance of monocyte chemoattractant protein-1(MCP-1)in children with Henoch-Schonlein purpura nephritis(HSPN).At the same time compare the association between serum and urine MCP-1,to investigate the impact of the both on them in children with HSPN.Methods Serum and urine MCP-1 were measured by enzyme linked immunosorbent assay in 50 children with Henoch-Schonlein purpura(HSP)(25 cases of them patients with renal injures),and 25 healthy children,the changes of serum and urine MCP-1 were compared;at the same time serum urea nitrogen,creatinine,urinary albumin,urine N-acetyl-D-glucosaminidase(NAG),urine ?2-MG,24 hours urinary levels of protein were investigated in children with HSPN by analyzing the correlation between these indicators and serum and urine MCP-1;urine MCP-1 in HSPN group were measured in recovery period,and were compared with urine MCP-1 in HSP group and HSPN group in acute period.Results 1.The expressions of urine MCP-1 was significantly higher in HSPN group than those in HSP group and healthy controls(P0.05).2.Urine MCP-1 levels were associated with proteinuria in children with HSPN,but serum MCP-1 levels had nothing to do with HSPN.3.There was a close correlation between urine MCP-1 expression and urinary albumin,urine NAG,urine ?2-MG and 24 hours urinary levels of protein,but the expression of urine MCP-1 levels were not correlated with the serum urea nitrogen and creatinine.4.There was statistical significance in urine MCP-1 in acute and recovery periods with HSPN group(P

0.05) in incidence rate for bone marrow suppression,gastrointestinal reaction,hepatic damage and mucosa damage and infection between different therapic courses.Central nervous system leukemia(CNSL) occured in one high risk case followed up at 12 month after complete remission(CR);the incidence rate was 12.5%.Conclusions HD-MTX is practicable in basic-level hospitals,as long as there are perfect preparation,fitness hydration and alkalization and leucovorin rescue being used in time.

OBJECTIVETo seek the effective treatment for peripheral neuropathy induced by chemotherapeutic drugs.

METHODSSixty-four cases of peripheral neuropathy induced by Paclitaxel or Oxaliplatin were randomly divided into an acupuncture group and a medication group, 32 cases in each group. The acupuncture group was treated with therapeutic principle of dredging meridians and collaterals, tonifying qi and eliminating blood stasis, supplementing liver and kidney, nourishing blood and tendon. Hegu (LI 4), Taichong (LR 3), Zusanli (ST 36), Qihai (CV 6) and Quchi (LI 11) etc. were selected. The medication group was treated with intramuscular injection of Cobamamide. The neurotoxicity of two groups was compared with questionnaire of peripheral neuropathy induced by chemotherapeutic drugs before and after treatment.

RESULTSThe total effective rate for sensory nerve disorder of acupuncture group was 66.7% (20/30), which was superior to that of 40.0% (12/30) in medication group (P < 0.05).

CONCLUSIONAcupuncture is more effective than Cobamamide for treatment of peripheral neuropathy induced by chemotherapeutic drugs, especially for moderate and severe sensory nerve disorder induced by paclitaxel.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Drug-Related Side Effects and Adverse Reactions ; Female ; Humans ; Male ; Middle Aged ; Organoplatinum Compounds ; adverse effects ; Paclitaxel ; adverse effects ; Peripheral Nervous System Diseases ; chemically induced ; therapy

Objective To investigate the effects of Shenfu injection ( SF,a Chinese herbal medicine preparation made of Codonopsis pilosula and Aconitum carmichaeli) on the cell apoptosis of focal cerebral ischemic-reperfusion injured rats and the expression of heme oxygenase-1 (HO-1). Methods Forty-two male Sprague-Dawley rats used for producing unilateral brain ischemia reperfusion model were randomly divided into three groups:sham operation group ( Sham group),ischemia reperfusion group ( IR group),and SF Injection group (SF group).The model of focal cerebral ischemia-reperfusion injury was induced by transient occlusion of middle cerebral artery (ischemia for 2 h,and reperfusion for 3,6 h respectively).In SF group,SF ( 10 mg/kg) was intraperitoneally injected duri(n)g reperfusion.Cell apoptosis rate in brain tissue was detected by the technique of Annexin-V-PI double staining and was counted in flow cytometer.Expression of HO-1 in brain was measured by RT-PCR,while the pathological and ultra structure changes of cerebral tissue were also observed.Results Cell apoptosis rate of brain tissue were significantly higher in IR group than that in Sham group (P ＜0.01 ),while SF group had less significant changes in cell apoptosis rate, HO-1 level of brain tissue than IR group (P ＜ O.01 ).The ultra structure change of brain tissue was less in SF group than that in IR group.Conclusions During early stage of brain IR injury,SF inhibits cellular apoptosis and in turn protects the brain from injury which is attributed to the increase in HO-1 expression induced by SF.

Among all the adverse reactions of anti-tumor drugs, the incidence of chemotherapy-induced peripheral neuropathy elevated gradually in recent years, but no trustworthy treatment by Chinese and Western medicine for it has been found so far. The related clinical and experimental reports published in the latest 10 years were reviewed in this paper.
Drug Therapy, Combination ; Drug-Related Side Effects and Adverse Reactions ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Integrative Medicine ; Neoplasms ; complications ; drug therapy ; Peripheral Nervous System Diseases ; drug therapy ; etiology

The technique introduced in this paper is applied in the endocardial catheter operation, which describes the 3D heart model reconstruction before the operation for the endocardial navigation. After a series of CT images of the thorax are processed, an accurate 3D endocardial model can be reconstructed. At first, the series of 2D CT images are preprocessed for denoising and the enhancement,then they are constructed as the volume data. After the region growing segmentation in the 3D volume data according to the grey value of the voxel in the heart cavity, the heart surface rendering is got and the 3D model of endocardial cavity is reconstructed.
Cardiac Catheterization ; methods ; Imaging, Three-Dimensional ; Models, Cardiovascular ; Tomography, X-Ray Computed ; methods