Objective To explore the efficacy and side effect of CAG (G-CSF, aclarubicin and cytarabine) priming chemotherapy for patients with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). Methods 54 patients with AML at diagnosis and relapse or MDS were'enrolled for the initial treatment with CAG regimen. Patients who have achieved complete remission (CR) were treated with various regimens. Results The total effective rate was 72.2 %, complete remission rate was 48.1% and partial remission rate was 24.1%. The incidence of granulocyte deficiency was 40.7 %(22/54). The severe infection rate was 24.1%(13/54). One case died of function damage in liver. The study includes 36 patients below 60 years, 18 patients above 60 years, and overall effective cases are 28 (77.8 %), 11 (61.1%),respectively. There was significant difference (P ＜0.05). Conclusion CAG regimen is effective and well tolerated in remission for AML and MDS-RAEB.

Objectives The purpose of this study is to observe the effects of valsartan on hepapetic fibrosis. Methods Thirty male Sprague-Dawley rats were randomly divided into three groups: valsartan -prevetive group (A), modle group of hepatic fibrosis (B)and valsar-tan-treating group (C). The model of hepatic fibrosis in rats was induced by intraperitoneai injection of dimethylnitrosamine (DMN) for 4 weeks(2ml/kg everyday, three times a week). Valsartan (10mg/kg everyday) was given together with injection of DMN per intrngastric (Ig) in group A for 8 weeks. After stop injection of DMN, the S valsartan(10mg/kg, everyday)was given per Ig in group C for 4 weeks. After modeling, normal saline were given per Ig everyday in group B. At the end of eighth week, the histomorphylogic structure of the liver was ob-served with light microscope. Immunohistoebemical staining was used to evaluate the expression of a-SMA. Results In group B, there was a large necrotic area and a number of pesudolobes appeared in the liver tissue. In group A, there were normal hepatic cords. In the group C, there was fibrosis interval formation and portal area expansion and fibrotie intervals extending to the lobule. The quantitative analysis of Mas-son staining showed that the collagen quantities in group B was higher than that of other group(P<0.01). The collagen quantities in group A was lower than that of group C(P<0.05). The results of immanohistochemical staining showed that the expression of a-SMA in group B was strong positive, middle positive in group C, and weak positive in group A (P<0.05). Conclusion The valsartan has preventive and treatment effects on hepatic fibrosis in rats of hepatic fibrosis model induced by DMN, and the preventive effect of valsartan is better than its treatment effect. The valsartan can ameliorate the hver cirrhosis by partly suppressing the activation of HSC.

OBJECTIVE:To establish a method for the determination of 4 flavonoids constituents in Yinqiao capsules. METH-ODS:HPLC method was adopted. The Hypersil ODS C18 column was used with the mobile phase A of methanol-water-acetic acid (10∶88∶2,V/V/V)and B of methanol-water-acetic acid(88∶10∶2,V/V/V)in gradient elution at the flow rate of 1.0 ml/min;the de-tection wavelength was 327 nm,the column temperature was 25 ℃,and the volume was 10 μl. RESULTS:There was a good linear relationship between the amount of quercetin and peak area in the range of 0.050 9-1.018 0 μg(r=0.999 8),kaempferide in the range of 0.050 2-1.004 0 μg(r=0.999 5),isorhamnetin in the range of 0.051 0-1.020 0 μg(r=0.999 4)and rutin in the range of 0.050 4-1.007 0 μg(r=0.999 8). RSDs of precision,stability and repeatability tests were <2%. The average recoveries were 100.09%(RSD=0.93%,n=9),99.83%(RSD=0.75%,n=9),100.51%(RSD=1.17%,n=9) and 101.19%(RSD=1.08%,n=9). CONCLUSIONS:The method is amount specific,stable and reproducible and can be used for the quality control of Yinqiao capsules.

Objective:To assess the effect of auto-bone marrow mononuclear cells (BMMNCs) transplantation on reendothelialization and neointima formation in vein grafts. Methods: BMMNCs were extracted from the bone marrows of adult rabbit under sterile environment and were labelled with DAPI before transplanted into vein grafts. Twenty adult rabbits were randomly divided into 2 groups: BMMNCs transplantation group(groupⅠ,n=10) and PBS transplantation group (group Ⅱ, n=10). The left external jugular vein of 20 rabbits were harvested and transplanted between ipsolateral common carotid artery(AVG). Three days later, animals in group Ⅰ were transplanted with BMMNCs(6?108 cells)/100 ?l via periotic veins and those in groupⅡwere injected with 100 ?l PBS. Animals were killed 4 weeks later and graft veins were harvested to observe the reendothelialization and the thickness of vein grafts. Results: We found that the transplanted cells survived and were incorporated into the endothelium of vein grafts in groupⅠ.The endothelium integrity of the vein grafts in groupⅠwas significantly better than that of groupⅡ. The intima thickness of vein grafts in groupⅠwas significantly thicker than that of groupⅡ. Conclusion: BMMCs transplantation therapy may improve reendothelialization of the vein graft and inhibits intimal hyperplasi the vein graft.

Purpose Many studies have shown that subclinical left ventricular systolic dysfunction is seen in prediabetic patients.However,its relationship with prognosis is unclear.The purpose of this study is to investigate the prognostic value of subclinical left ventricular systolic dysfunction with prediabetes.Materials and Methods This was a prospective clinical cohort study.A total of 98 prediabetes patients with complete medical record and follow up data in the physical exam center and the clinic of Yan'an People's Hospital were chosen between January 2013 and January 2014.The biochemical data,echocardiography and left ventricular global longitudinal strain (GLS) in 2 years of follow up were collected.The subjects were grouped into diabetes if the diagnosis was confirmed during follow up,or non-diabetes group if not diagnosed.After follow up,the baseline parameters were compared to screen for risk factors to develop clinical diabetes.Results During the study,38 participants were diagnosed as clinical diabetes.Cox proportional hazard regression models show that obesity [hazard ratio (HR):2.662,95％ CI 1.374-5.159,P=0.004],waist-hip ratio (HR:1.917,95％ CI:1.012-3.492,P=0.001),mitral E/e'ratio (HR:1.661,95％ CI:1.336-2.065,P＜0.001),HbAlc (HR:2.029,95％ CI:1.047-3.932,P＜0.001),global longitudinal strain (HR:0.786,95％ CI:0.728-0.848,P＜0.001) were significant independent predictors for developing diabetes.Using GLS＜18％ as cutoff value,the area under receiver operating characteristic (ROC) curve to predict development of diabetes was 0.796 (95％ CI:0.704-0.888,P＜0.001),with sensitivity and specificity of 46.7％ and 89.5％,respectively.Conclusion Among modifiable risk factors in patients with prediabetes,subclinical left ventricular systolic dysfunction is an early indicator of progressing to diabetes.Early detection of left ventricular systolic dysfunction in prediabetes can provide the basis for early clinical intervention.

Objective To evaluate the imaging features of benign fibrous histiocytoma (BFH).Methods Imaging data were retrospectively collected and reviewed in 11 patients with pathologically proved BFH.Of the 11 patients,X-ray was performed in all patients,MR scans in 6 patients,and CT scans in 4 patients.Results ALL lesions detected were a solitary lesion.The distribution of BFH was in the tibia (n =5 ),femur ( n =3),fibula ( n =1 ),sacrum ( n =1 ),and thoracic vertebrae ( n =1 ).X-ray features included eccentric osteolytic lesions in 7 patients and centric in 2 patients,with clear boundary and thinning of the cortex,and 7 patients with varying degrees of ossified border were found. CT scan shows bone destruction with density similar to soft tissue.The majority of lesions ( n =3 ) were observed in the expanding shell of bone,2 patients in the tibia and 1 patient in the thoracic lesions with cortical bone perforation.The thoracic lesion as soft tissue mass was detected. All of the lesions detected in CT showed no periosteal reaction.In patients with MR images,hypo to isointense signal intensity on T1WI and hyperintense signal intensity on T2WI was found. All lesions on post-contrast T1WI were detected with homogeneous or heterogeneous lesion with moderate or significant enhancement.Conclusion Imaging features were typical for MFH which is useful tool helping correct diagnosis of MFH.

Objective To explore the CT and MR imaging features of nodular fasciitis(NF), which will in return improve the standard and quality of diagnosis. Methods CT (n = 4) and MRI (n = 5) findings of pathologically proved nodular fasciitis in 9 patients were retrospectively analyzed. Results Of 9 NF, 5 were located in the lower extremities, 2 in the abdominal wall, and the others in the acoustic duct. The resected tumor size vary from 1.1 to 9. 5 cm in the largest diameter and mean (3.7±0.3) cm. All lesions appeared as a discrete solid mass on imaging. The CT value of lesions was similar to muscle. MR imaging manifested as a hypo to isointense lesion on T_1WI and hyperintense signal intensity on T_2WI. There was homogeneous or heterogeneous moderate to significant enhancement in the lesions. Conclusion CT and MRI can provide helpful information for the clinical and differential diagnosis of NF.

Visceral leishmaniasis (VL) is a parasitic disease ,which is still endemic in western China .An earthquake struck south-western China on May 12th ,2008 ,which affected Longnan City of Gansu Province considerably .The objective of this survey is to determine the effect of the Wenchuan earthquake on the Kala-azar epidemic in Longnan City .In this study ,VL cases were collected from 2005 to 2013 and diagnosed on positive test for anti-rK39IgG antibodies by the Kala-azar Detect rK39 dip-stick (InBios ,USA) .The incidence rates were calculated among various counties of Longnan City with SPSS 19 .0 soft-ware .The epidemiological characteristics of the disease were analyzed before and after the Wenchuan earthquake .From 2005 to 2013 ,there were 825 VL cases in Longnan City ,with an annual incidence of 3 .36/100 000 and a significantly higher incidence in males than that in females (P＜ 0 .001) .All age groups were affected .During this period ,there was an obvious upward trend from 2005 to 2008 ,and a distinct downward tendency since 2010 .The incidences of VL between 2008 and 2010 were sig-nificantly different with that in other years (P＜0 .01) .Results revealed that VL was widespread in Longnan City ,which was likely exacerbated by the earthquake in 2008 .Earthquake created diverse natural environment and social circumstances ,w hich may contribute to the spread of the VL epidemic .Together ,our data strongly suggest that the epidemic of VL should be close-ly monitored after earthquake .

Objective To observe the imaging features of primary lymphoma of bone (PLB) on MRI and PET, and to assess the value of MRI combined with PET for PLB. Methods Sixteen patients with pathologically confirmed PLB were collected, and the MRI and PET appearances were analyzed retrospectively. Results Single bone infiltration was detected in 15 patients (5 in femurs, 3 in vertebro, 3 in right iliums, 2 in tibias, 1 in radius and 1 in maxillae), while multiple bones infiltration were noticed in 1 patient (lesion located in manubrium sterni and the 7th right rib). MRI demonstrated heterogeneous focal-lamellar or diffuse signal intensity within marrow, isointense or hypointense on T1WI and slightly hyperintense on T2WI with homogeneous or heterogeneous enhancement. Severe soft tissue mass was seen in all 16 patients, the range of soft tissue mass was larger than osseous lesion in 15 patients and equal to osseous lesion in 1. Most PLB were homogeneous isointense or slightly hypointense on T1WI and homogeneous or heterogeneous slight-hyperintense on T2WI with slightly or moderately homogeneous or heterogeneous enhancement, while in 3 patients showed single vertebral compression fracture with local epidural- and/or paravertebral-soft tissue, and the range of soft tissue larger than the pathologic vertebrae. PET was performed before operation in 13 patients, showing local increasement of glycometabolism and uptake of radioactive nuclide without abnormality for other sites. For three patients of primary lymphoma of vertebrae underwent PET after operation, and recurrence was detected in 1 patient after 2 months. Conclusion Large soft mass with small osseous destruction and relatively hypointensity on T2WI is somehow characteristic for PLB. PET features of PLB are not specific, but has some advantages in determining the nature of lesion, differentiating lesions and follow-up after operation. MRI combined with PET is an appropriate imaging method for PLB.

Objective To compare the effects of standard decompressive craniectomy (DC) vs.combined cisternostomy on severe traumatic brain injury (STBI).Methods Seventy-two patients with severe brain injury were divided into standard decompressive craniectomy group (control group,n=34) and DC combined cisternostomy group (treatment group,n=38).The clinical parameters from pre-and post-surgery were compared between the two groups.Results There was no statistical difference in clinical data including gander,age,injury causes,GSC score,Helsinki CT score and operative opportunity between two groups before surgery (P＞0.05).The treatment group was inferior in the duration of decompression (2.8±0.4 h vs.2.5±0.3 h,P＜0.05) relative to control treatment group.However,treatment group were superior to control group in the mean time of admission in neuro-intensive care unit (5.54±3.09 d vs.7.24±2.74 d,P＜0.01),the cumulative time of intracranial pressure (ICP) more than 20 nmHg within seven days after surgery(23.2±4.4 h vs.56.8±8.3 h,P＜0.01),Helsinki CT scores at postoperative day (3(2,5) vs.5(2,9),P＜ 0.01)and Glasgow Outcome Scores (GOS) at 3 month after surgery (P＜0.01).Conclusion DC combined with cisternostomy for STBI is significantly better than standard decompressive craniectomy,which is worth further study by multicenter clinical trials.