Acute lymphoblastic leukemia is a major type of childhood cancer.It is an obstacle to cure for young patients with relapsed acute lymphoblastic leukemia.Recent investigations into the mechanism of relapse in pediatric acute lymphoblastic leukemia indicate the relationship between gene abnormalities and the relapse of pediatric acute lymphoblastic leukemia.An increasing number of gene abnormalities have been confirmed to be related with relapse of this disease, including deletion of IKZF1 and mutations of JAK, CREBBP,CEBPE and ARID5B.This paper reviews the details about the influence of the various gene mutations on the relapse of the pediatric acute lymphoblastic leukemia.

Humans ; Infant, Newborn ; Mastocytosis, Cutaneous

To explore the relationship between the activity of polyol pathway and diabetic microangiopathy, the level of red blood cell sorbitol(RBCS)in 106 patients with NIDDMwas determined. The results indicated that the level of RBCS in diabetic patients was significantly increased, and was positively correlated with 24-h urinary albumin excretion rate(UAER)and the degree of diabetic retinopathy(DR). Besides,the value of RBCS in patients with both pro-teinuris and DR or proteinuria was markedly higher as compared with that in patients with either proteinuria or DR,and the concentration of RBCS in the patients with DR of proteinuria was also significantly higher than those wth neither proteinuria nor DR. In addition.it was also found that the value of RBCS gradually elevated with the aggravation of UAERand DR. These findings suggest that the elevation of RBCS level plays an important role in the formation and development of diabetic microangiopathy.

Animals ; China ; epidemiology ; Rickettsia Infections ; epidemiology ; veterinary ; Rodentia ; Ticks

Objective To investigate the effect of simvastatin on the mobilization and migration of endothelial progenitor cells(EPCs).Methods EPCs were harvested from the bone marrows of two rabbits,cultured with M199,and identified by immunohistochemistry.The identified EPCs were then treated with simvastatin with different concentrations(0,0.01,0.1,1.0 ?mol/L),and their migration induced by simvastatin was determined with Transwell chamber assay.Six rabbits models of cranial bone defect were established and divided into control and experiment groups(3 in each).In order to elicit the effects of simvastatin on mobilization of EPCs,simvastatin was embedded in polylactic acid compound,and implanted into the cranial bone defect area in the experiment group.Meanwhile,polylactic acid was implanted in the control animals.After 10 days,the expression rate of CD34+/CD133+ EPCs in the rabbit peripheral blood was counted by flow cytometry to determine the motivating effect of simvastatin.Results In Transwell experiment,16 hours after adding simvastatin(0,0.01,0.1 or 1.0 ?mol/L),the cell migration ability was obviously increased showing a dose-dependent trend(OD value:0.077?0.014 in control group and 0.075?0.013 in 0.01 ?mol/L group vs 0.097?0.011 in 0.1 ?mol/L group and 0.099?0.019 in 1.0 ?mol/L group,P

Objective To investigate the effect of simvastatin-polylactic acid compound on critical calvarial defects in rats.Methods Twenty male SD rats(150 g?10 g),were used to establish critical cranial defect(10 mm in diameter)model.The animals were randomly divided into control and experiment groups(10 in each).In the control group,40 mg of polylactic acid were implanted into the defect area;whereas in the experiment group,simvastatin-polylactic acid compound were used(20 mg simvastatin and 40 mg polylactic acid).Four and eight weeks after the implantation,the defect area of the rats was observed by X-ray and toluidine blue staining.Results Eight weeks after the operation,X-ray examination showed high-density regions in the defect area in the experiment group,while low-density regions in the control group.The radiopacity of cranial defects were 27.33%?2.54% in the control group,and 74.63%?2.42% in the experimental group(n=5,t=-30.148,P=0.000).Toluidine blue staining showed a few new bone tissues at 4 weeks and fully filled bone defect at 8 weeks in the experiment group.Meanwhile,in the control group,only a small quantity of new bone tissue could be seen on the edge of the cranial defects.Conclusion Locally implanted simvastain-polylactic acid compound is a promising method for the treatment of bone defect owing to its high osteogenic ability.

Objective: To study the effect of Tang Ke Decoction on tumor necrosis factor ?(TNF?) and glucose transporter 4(GLUT4) expression in tissues of model rats of insulin resistance of type two diabetes mellitus,and to investigate the mechanism of the function of Tang Ke Decoction to insulin resistance.Methods: Rat model of insulin resistance of type two diabetes mellitus was duplicated by using strepozotocin(STZ) and high caloric diet,and using Tang Ke Decoction of compound Chinese herbs and rosiglitazone acted on model rats individually.The degree of insulin resistance was measured by insulin sensitivity index(ISI).The expression of TNF? mRNA was assayed in adipose tissue by RT-PCR.GLUT4 protein expression was assayed by immunohistochemical method in skeletal muscule tissue,and its distribution in skeletal muscle cell was observed with electron microscope.Results: ISI of model group was significantly lower than that of control group(P

Objective To investigate the application of evidence-based nursing in the patients with cerebrospinal fluid leakage (CSFL) after vertebrae surgery.Methods 60 cases of patients were randomly divided into the observation group and the control group (30 cases in each),the control group was given conventional nursing,the observation group used evidence-based nursing,which was established by referring to some data and literatures according to a series of related nursing problems,getting direct and indirect evidence,and through analysis and summarizing to set up the nursing project for implementation.The incidence of intracranial hypotension headache,hyponatremia,wound healing disorders,infection of intervertebral space were compared.Results In the observation group,incidence of postoperative intracranial hypotension symptoms,postoperative hyponatremia,the incidence of wound healing disorders was statistically different from that of the control group.The incidence of infection in two groups showed no significant difference.Conclusions Using evidence-based nursing can reduce a series of complications in patients with CSFL after cervical surgery,control infection effectively,improve patients' comfort and improve the quality of nursing.

Objective To investigate the clinical efficacy and safety of caffeine citrate in the treat-ment of primary apnea in premature infants. Methods A non-randomized controlled trial had been designed in which 96 premature infants would be enrolled form Oct 2013 to Sep 2014 in our hospital. According to the therapeutic strategy,the patients were divided into treatment group(n=51) and control group(n=45). The treatment group was treated with caffeine citrate,and the control group was treated with placebo. The overall response rates and the complication rates in the two groups were compared. Results The effective rate of the treatment group was 80. 4%(41/51),while the control group was 51. 1%(23/45). There was a significant difference between the two groups(χ2 =9. 224,P =0. 002). The incidence of bronchopulmonary dysplasia (7 cases vs. 14 cases),patent ductus arteriosus(7 cases vs. 15 cases),retinopathy of prematurity(4 cases vs. 10 cases),intraventricular hemorrhage(9 cases vs. 20 cases),showed significant differences between the two groups( P<0. 05 ) . Conclusion Caffeine citrate is significantly more effective than placebo in reducing apnea episodes and reduces the rate of bronchopulmonary dysplasia, patent ductus arteriosus, retinopathy of prematurity and intraventricular hemorrhage in premature infants.

Objective To study appliction value of quantitative dynamic contrast enhanced MRI(T1-DCE MRI)in preoperative grading of brain glioma.Methods 80 patients who were pathologically confirmed with a tumor grade (WHO grade Ⅰ 20 cases, grade Ⅱ 20 cases,grade Ⅲ 20 cases and grade Ⅳ 20 cases).All patients were examined with MR enhancements and T1-DCE MRI. The original perfusions imaging datas were analyzed using the GE Omni Kinetic software,which produced the transfer constant (Ktrans )map,the rate constant (Kep )map and fractional volume (Ve )map.Choose ROI and get values of Ktrans ,Kep and Ve .Pearson correlation was carried out to analyze the correlation between values of Ktrans ,Kep ,Ve of different grades of gliomas and pathology classifications.The Ktrans ,Kep and Ve values of the different grade gliomas were statistically analyzed using an ANOVA .Receiver operator characteristics (ROC)curve was used to analyze sensitivity and specificity of permeability parameters.Results The Ktrans ,Kep and Ve values of each levels has a strong correlation with pathological grading (r=0.95 1,0.804,0.766).There was obviously statistically significant difference between different grade groups(P < 0.01 )by Ktrans .Kep values have statistically difference between different grades except grade Ⅱ and Ⅲ.Ve values were different between different grades except grade I andⅡand grade Ⅲ and IV.Accord-ing to ROC curve,Ktrans seemed to be a better parameter for evaluating the tumor grade with the highest sensitivity and specificity. With the cutoff thresholds of Ktrans of 0.1 60,0.420 and 0.935,different grades of glioma can be differentiated with sensitivities of 90%,95%,95% and specificities of 95%,95%,85% respectively.Conclusion Quantitative analysis of microcirculation perfusion status of different grade gliomas by Ktrans values obtained from T1-DCE MRI can assessment the degree of the destruction of the blood brain barrier and evaluate the grade of gliomas more accurately before operation.