Objective In order to study the value of drug treatment for leukemia, quercetin was delivered to the cultured NB4 cell line. MethodsUsing RT- PCR and western blot, we studied the expression of mutant p53 gene and protein after inducing 24, 48, 72, 96 and 120h by the quercetin with different concentrations (30, 60, 90μmol/L). Results We verified the results that quercetin with concentration of 30 ～90μmol/L could successfully inhibit the expression of mutant p53 protein, but the mutant p53 gene did not have. ConclusionThat data suggested that quercetin would be an effective method for the therapy of leukemia.

Objective To investigated the biological procedure of allograft decalcified bone matrix(DBM)and bone cement(BC)combined with bovine bone morphogenetic protein (bBMP)used for the repair of femoral defect caused by microwave－ induced hyperthermia in dogsby 99mTc－ MDP bone scintigraphy.Method The canine femoral defect(length 25mm,width 10mm)was caused by microwave－ induced hyperthermia(50℃ ,20minutes)and the composite material was implanted .Then the canine femurs were examined by 99mTc－ MDP bone scintigraphy respectively at different postoperative time and the results were compared with that of X－ ray photography and histological observation.Bone cement was implanted in the other femur as a contrast.Results It could be observed at the first and the second month that the radioisotope was gathered in the place where the composite material was implanted and the amount of radioisotope gathered in was the most abundant at the third month and it was lasted to the fourth month. That of the sixth month was decreased to that of the second month.The radiation count of the first, the second, the third the fourth and the sixth month were 93.9± 12.7, 110.7± 16.4,222.1± 24.0,201.3± 26.9 and 111.6± 20.7 respectively,and the count of the third month and the fourth month were more than that of the first, the second and the sixth month(P<0.01).Conclusion The composite material could be remodeled easily and the new bone could be formed by the induction of bBMP. So it could be merged with the normal bone.While the 99mTc－ MDP bone scintigraphy is the object and reliable index to determine the biological procedure of the composite material in dogs.

Objective To choose a best cultivar by comparing the content of total flavonoid and naringin between different cultivars of Citrus grandis 'tomentosa'.Methods The content of total flavonoids was determined by spetral photometric analysis.The content of naringin was determined by HPLC.Results The content of total flavonoid was 19.24 % and 18.06 %,and naringin content was 11.72 % and 12.38 % in the cultivars from Dachaling and Fengwei respectively,which were much higher than the other cultivars.Conclusion The contents of total flavonoid and naringin were different in different cultivars of Citrus grandis 'tomentosa'.The cultivars of Citrus grandis 'tomentosa' from Dachaling and Fengwei have the best quality.

Objective:To investigate the role of the expression of E-cadherin(E-Cad) and tissue inhibitor of metalloproteinases-2(TIMP-2) in carcinogenesis and progression of colorectal cancer(CRC).Methods:The E-Cad and TIMP-2 expressions were studied immun ohistochemistrically in 30 specimens of colorectal adenoma and 60 specimens of CRC.Results:The expression rates of E-Cad were 87.10% in colorectal adenoma and 55.00% in CRC, the former was apparently higher than that of the later (P0.05);The significant relationship was observed between low TIMP-2 expression and Dukes stage, metastasis of lymph node and distant organs and poor prognosis.Conclusion:The detection of expression about E-Cad and TIMP-2 may be helpful to judge the malignant behavior and metastasis and prognosis with colorectal carcinoma,furthermore the expression of TIMP-2 may be used to know prognosis of patients.

Objective To examine mycological profile of eryptococcal meningitis in patients with non-acquired immune deficiency syndrome (AIDS) during treatment and follow-up so that to support clinical therapy. Methods Data of 28 cuhure-confirmed cryptoeoccal meningitis patients with non-AIDS were retrospectively analyzed. Fungat smear, count, culture and latex agglutination test of cerebrospinal fluid (CSF) were done during treatment and follow-up. Initial treatment included intravenous amphotericin B plus oral flucytosine or f;uconazole for at least 6 weeks, and consolidation treatment included oral fluconazole and (or) itraeonazole for at least 2 months. All 28 patients were cured. The data were analyzed by rank-sum test. Results The positive rate of CSF fungal smear was 92.9% before treatment and gradually decreased, and the fungal count was significantly reduced over time after treatment. While fungal smears of some patients were still positive after initial treatment. Fungal growth time in culture was gradually extended, and fungal culture turned to be negative in all patients after 2 weeks of treatment. The positive rate of latex agglutination test of CSF was 100%. Cryptococcal antigen titer decreased steadily after treatment, which was not correlated with the decrease of fungal count. Conclusion Mycological tests of patients with eryptococcal meningitis should be interpreted comprehensively during treatment, and result of each test should be specifically analyzed.

Objective To investigate the diagnostic value of sonographic changes of adipose tissue in benign and malignant breast lesions.Methods The sonographic characteristics of subcutaneous adipose tissue were retrospectively analyzed in 92 patients with 114 breast lesions,all lesions were confirmed by postoperative pathology.Receive operating characteristic (ROC) curve was drew with the pathological results as standard,the diagnostic value of subcutaneous adipose tissue changes in benign and malignant breast lesions was evaluated.Results The area under the ROC curve that derived from all of the lesions (61 benign and 53 malignant) was 0.862 (P =0.000).The ultrasonographic findings which showed subcutaneous adipose tissue changes at grade Ⅲ or higher suggested that the tumors were more likely malignant lesions.When adipose tissue changes at grade Ⅲ was taken as the diagnostic indicator for the presence of malignant breast lesions,the diagnostic sensitivity reached 73.6％ while specificity reached 93.4％.At ultrasound imaging scan,the adipose tissue in malignant lesions had the following manifestations:increased fibrosis,increased echogenicity,the sonographic images were turbidity or blurred,presence of ground-glass-like opacity.There were significant differences (P =0.000) between the benign and the malignant lesions in the range of adipose tissue changes.Conclusions The ultrasonographic changes were helpful to the differential diagnosis between the benign and the malignant breast lesions.

AIM: To analyze the electronic product use time, writing time, playing piano time and outdoor activity time and the distribution of myopia in 586 cases of school age children in our hospital. ·METHODS: A retrospective analysis of 586 cases of children aged 6 to 12 years old in the outpatient department was established. Personalized files were used to record the uncorrected visual acuity, optometry, slit lamp, fundus mirror and strabismus. The cumulative use time of electronic products ( including computer, mobile phone, iPad) , writing time, whether to play the piano and outdoor activities time with the eye situation were recorded. Statistical analysis of the age group of myopia, the cumulative use of electronic age in different age groups, writing time, whether playing piano and outdoor activities and the distribution of myopia occurred. · RESULTS: ( 1 ) With the increasing of age, the distribution of uncorrected eyesight was in children mostly mild myopia, and the proportion of mild myopia was significantly higher than that of moderate and high myopia. ( 2 ) Electronic products use time distribution:the proportion of playing electronic products ( including mobilephone, computers, iPad) accounted for 76. 8%, of which 9 years old, 10 years old the cumulative use of electronic products with a long time was higher than other age groups. ( 3 ) Distribution of writing time: the proportion of write homework ≤1h was significantly lower than the proportion of writing homework > 1h (37. 2% vs 62. 8%), of which 9 and 10 years old children cumulative write time was higher than other age group. ( 4 ) Distribution of playing the piano: the proportion of playing piano time less than 1h was significantly higher than the proportion of playing piano time more than 1h ( 89. 1% vs 10. 9%). ( 5 ) Distribution of outdoor activities: the proportion of outdoor activities ≤1h in children at school age was significantly higher than that of outdoor activities > 1h (91. 8% vs 8. 9%). ·CONCLUSION: With the age exposure to electronic products becoming younger, heavy learning tasks and less outdoor activities, myopia occurred in advance of age. So health examination and eye guidance, reducing the amount of work appropriately, increasing outdoor activities will slow the development of early childhood myopia.

Objective To report a case of progressive pseudorheumatoid dysplasia (PPD) with two kinds of WISP3 gene mutation. Methods A case of PPD was reported. Its clinical profile and the process of diagnosis were analyzed, and the related literature were reviewed. Results A 15-years old boy, who developed progressive joint pain and enlargement with spine involvement, was diagnosed as PPD. The erythrocyte sedimentation rate and C-reactive protein were in normal range, rheumatoid factor and anti-CCP antibody were all negative. HLA-B27 was also negative. Gene study discovered two kinds of mutations in Wnt1-inducible signaling pathway protein 3 (WISP3) gene: c.589+2T＞C and c.624dupA. Radiographic studies revealed severe osteoporosis without erosion, platyspondylia, enlargement of metaphysis and scoliosis deformity. The joint space of sacroiliac joint and articulation of pubis were significantly widened. Conclusion PPD is a rare autosomal recessive disorder characterized by cartilage homeostasis. It is associated with WISP3 gene mutations. Gene detection, laboratory examination and typical radiographic features are helpful for the diagnosis. This is the first report of c.589+2T＞C and c.624dupA mutations in patients with PPD in our country.

Objective To investigate the evolution of surgical treatment and it's influence on prognosis in reptured liver cystic echinococcosis.Method Clinical data of 110 surgically treated cases of reptured liver cystic echinococcosis from January 1990 to December 2008 were retrospectively analysed,and these cases were divided into three groups by different surgical approach;Group A(22 cases):removal of internal capsule,with formaldehyde or hydrogen peroxide regional anthelminthic,with residual cavity side edge of lock stitching or greater omentum filling or drainage after residual cavity closure;Group B (65 cases):Removal of intemal capsule,with hypertonic saline regional anthelminthic,with external capsule extrahepatic partial resection,with residual cavity bile leakage sutured,and with residual cavity open drainage,Group C(23 cases):the total or subtotal external capsule stripping operation,with hypertonic saline regional anthelminthic and drainage.Result The rate of overall postoperative complications of residual cavity was 40.9%、16.9%、0.0%(P<0.05)respectively and the recurrence rate was 18.2%、4.6%、0.0%(P<0.05)respectively;drainage time needed was the longest in group A,and shortest in group C,whereas the operation time was the longest in group C and it costed higher blood loss.Intraabdominal implantation of the hydatid significantly decreased with hypertonic saline treatment.Conclusion Total or near total removal of the external capsule of the hydatic cyst and hypertonic saline treatment with postoperative external drainage is the therapy of choice for reptured liver cystic echinococcosis.