Objective To explore the relationship between cytogenetics with therapy and prognosis in myelodysplastic syndrome.Methods 124 cases of myelodysplastic syndrome from September 2005 to October 2009 were reviewed.124 cases contained 79 males and 45 females,aged 14 to 79 years,median age was 57 years old.26 cases were diagnosed as RA,13 cases as RAS,21 cases as RCMD,29 cases as RAEB-Ⅰ,35 cases as RAEB-Ⅱ.According to the karyotype,124 cases were divided into two groups,79 cases of normal karyotype and 45 cases of abnormal karyotype.Patients were followed up for three years in order to analyze the incidence of myelodysplastic syndrome changed into acute leukemia.Results In 39 patients diagnosed as RA and RAS,32 cases were with normal karyotype and 7 cases (17.9 ％) with abnormal karyotype.15 of 32 cases with normal karyotype achieved hematologic remission after treatment while only 1 of 7 cases with abnormal karyotype achieved remission.1 case with abnormal karyotype changed into acute leukemia after 2 years.In 85 patients diagnosed as RCMD,RAEB-Ⅰ and RAEB-Ⅱ.Difference of the lower incidences of RA and RAS changed into acute leukaemia during 3 years in normal karyotype and abnormal karyotype groups was statistically insignificant (P ＜ 0.05).The incidences of RCMD,RAEB-Ⅰ and RAEB-Ⅱ changed into acute leukemia were higher,especially in the abnormal karyotype group with 42.1 ％.Conclusion Myelodysplastic syndromea with abnormal karyotype is associated with poorer efficacy of therapy,higher incidence of changing into acute leukaemia.The patients can take early allogeneic hematopoietic stem cell transplantation to improve the prognosis.

Objective To explore ways for the supervision of department directors. Methods Job responsibility agreements with department directors were signed and a series of assessment standards were established. Results The methods adopted were standardized, individualized and easy to use. Conclusion Job responsibility agreements with department directors and a standard assessment system are currently effective measures for the supervision of department directors.

OBJECTIVE:To establish an analytical method for the determination of prednisolone and prednisolone-hemisuccinate in biological media METHODS:Using RP-HPLC,biological media were extracted with a mixture of n-pentane and methyl tert-butyl ether(2∶3) The mobile phase consisted of acetonitrile and trisodium citrate buffer (33∶67) The sample was eluted on C18 column and detected at 254nm RESULTS:The extraction recoveries of two drugs were over 80% and the RSDs of within-day and day-to-day were below 3% CONCLUSION:The method is simple,rapid,sensitive,accurate and good enough to be applied to the pharmacokinetic study of new preparation of prednisolone and can also be applied to other similar glucocorticoids

AIM: To explore the expression changes of bone morphogenetic protein-7 (BMP-7) and its receptors (BMPR-Ⅱ, ALK-2, ALK-3, ALK-6) in the renal tubulo-interstitial lesions induced by unilateral ureteral obstruction (UUO). METHODS: Rats were divided into normal control, sham operation and UUO groups, and sacrificed at postoperative day 1, 3, 7 and 14. The mRNA levels of BMP-7, BMPR-Ⅱ, ALK-2, ALK-3 and ALK-6 were examined by RT-PCR. The protein expression site and level of BMP-7 was detected by immunohistochemistry staining. RESULTS: Compared to sham operation group, the mRNA levels of BMP-7, BMPR-Ⅱ, ALK-2 and ALK-3 were significantly decreased, but the change of ALK-6 mRNA was not marked in UUO rats. The reduction of mRNA expression levels of BMP-7, BMPR-Ⅱ, ALK-2 and ALK-3 in the kidney tissue aggravated along with the delayed post-operated days. The results of immunohistochemistry staining indicated that BMP-7 mainly expressed in renal tubular and interstitial, rarely in glomeruli. In UUO rats, the protein expression of BMP-7 decreased in varying degrees according to the post-operated days. CONCLUSION: The loss of BMP-7 and its receptors (BMPR-Ⅱ, ALK-2, ALK-3) were observed in the early phase of fibrotic process and this may play a very important role in mediating the renal tubulointerstital fibrosis.

OBJECTIVE: To study the effects of Naomaitong Recipe, a compound Chinese herbal medicine, on the expressions of nuclear factor-kappaB (NF-kappaB) and nitric-oxide synthases (NOSs) in brain tissue after focal cerebral ischemia reperfusion in aged rats and the dosage-effect relationship. METHODS: We adopted the middle cerebral artery occlusion (MCAO) in aged rats as the focal cerebral ischemia model, with 3-hour ischemia and 12-day reperfusion, and observed the changes of the nerve dysfunction score, the water content of cerebral constitution and the expressions of NF-kappaB, heat-shock protein 70 (HSP70) and NOSs in cerebral cortex. RESULTS: The nerve dysfunction score, the water content of cerebral constitution, the expressions of NF-kappaB, HSP70, neuronal nitric-oxide synthase (nNOS), endothelial nitric-oxide synthase (eNOS) and inducible nitric-oxide synthase (iNOS) in the untreated group were higher than those of the sham-operated group. The nerve dysfunction score, the water content of cerebral constitution, the expressions of NF-kappaB, iNOS and nNOS were lower, while the expressions of HSP70 and eNOS were higher in the high-, medium- and low-dose Naomaitong-treated groups and nimodipine-treated group than those of the untreated-group. The nerve dysfunction score and the expression of nNOS were lower, while the expression of eNOS was higher in the medium-dose Naomaitong-treated group than those of the nimodipine-treated group. The expressions of HSP70 and eNOS were higher, while the other indices were lower in the medium-dose Naomaitong-treated group than those of the low-dose Naomaitong-treated group. CONCLUSION: Naomaitong Recipe can protect the brain cells from damage after focal cerebral ischemia reperfusion injury by adjusting the expressions of NF-kappaB, HSP70 and NOSs, and the medium-dose Naomaitong Recipe is more effective.

Objective To explore how the different intervention measures affect the outcome of central venous catheter-related thrombosis (CRT) in children. Methods A retrospective analysis was carried out to collect the clinical data of patients with CRT from the nursing management system of the Children′s Hospital Affiliated to Zhejiang University School of Medicine which reported by each nursing unit from January 1,2015 to December 31,2015. Results Totally 108 cases were included (72 boys and 36 girls), median age of 24.5 months (ranged from 1 month to 14 years old). Nearly 42.59% (46/108) patients suffered from neurological diseases. Nearly 55.56%(60/108) CRT was detected in the first week after catheterization. Once CRT conformed, there were four kinds clinical intervention options applied. Intervention 1: thrombolytic therapy with urokinase combined anticoagulation with nadroparin calcium. Intervention 2: anticoagulant therapy only. Intervention 3: thrombolytic therapy alone. Intervention 4: no medications. The differences of effective between the four kinds of intervention were statistically significant (χ2=13.380, P=0.004). The single-factor regression analysis was done to each relevant factor. Finally the multivariate regression analysis showed four factors had impacts upon the results. The factors were as follows:gender (OR=10.400, 95%CI 1.879-57.563, P=0.007);interval (OR=1.107, 95%CI 1.035-1.184, P = 0.003), size of thrombus(OR = 1.562,95%CI 1.033-2.362,P=0.035; Intervention 2 (OR =11.757, 95% CI 2.254- 61.327, P = 0.003), intervention 4 (OR = 35.397, 95% CI 3.493-358.760, P =0.003). Conclusions The earlier and small size thrombus is more soluble. Thrombolytic therapy or combined anticoagulation is more effective. It is recommended that if no contraindications presents, thrombolytic combined with anticoagulant therapy should start early standardized treatment.

The transfection efficiency of oligonucleotide and plasmid to the HL-60 cell line with lipofectaminePLUS was compared through observing the transfection rate and the expression duration of exogenous gene in the target cells. The results showed that the transfection rate of oligonucleotide to the HL-60 was about 90% - 95% and it had no obvious attenuation within 84 h. However, the plasmid transfection rate was only 5% -25% and it was decreased significantly within 60 h. It was suggested that the transfection of oligonucleotide with liposomes was better than that of plasmid.
Green Fluorescent Proteins/genetics ; HL-60 Cells ; Liposomes ; Oligonucleotides/*genetics ; Plasmids/*genetics ; Transfection

In order to explore whether gene CHFR was inactivated by methylation in leukemia cells, the expression of CHFR was examined before and after treatment with demethylation agent in Molt-4, Jurkat and U937 leukemia cell lines by means of RT-PCR. The methylation of promoter in Molt-4, Jurkat and U937 cells as well as 41 acute leukemia patients was analyzed by MS-PCR. The results showed that methylation of CHFR promoter was inactivated and could be reversed by treatment with a demethylating agent in Molt-4, Jurkat and U937. CHFR promoter methylation was detected in 39% of acute leukemia patients. There was no difference in incidence of CHFR promoter methylation between acute myelocytic leukemia and acute lymphocytic leukemia. In conclusion, CHFR is frequently inactivated in acute leukemia and is a good candidate for the leukemia supper gene. By affecting mitotic checkpoint function, CHFR inactivation likely plays a key role in tumorigenesis in acute leukemia. Moreover, the methylation of gene CHFR appears to be a good index with which to predict the sensitivity of acute leukemia to microtubule inhibitors.
Cell Cycle Proteins/*genetics ; DNA Methylation ; DNA, Neoplasm ; Epigenesis, Genetic ; Leukemia, Myeloid, Acute/*genetics ; Neoplasm Proteins/*genetics ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/*genetics ; Promoter Regions (Genetics)/*genetics ; Tumor Cells, Cultured

The HL-60 cells were transfected with chk1 antisense and sense chain, and 24 h later subjected to irradiation. Twenty-four h after irradiation, the changes in the chk1 protein expression was assayed by Western blot, and the cell cycles and apoptosis rate detected by FCM. The irradiated apoptosis sensitivity was increased by antisense blocking of chk1 gene in HL-60 cell line with the apoptosis rate being 26.31%, significantly higher than that by the sense blocking (10.34%, 0.025 < P < 0.05). In HL-60 cells transfected with chk1 antisense chain, the G2/M phase arrest was attenuated and the cells in G2/M phase were accounted for 38.42%, significantly lower than those of the cells transfected with chkl sense chain (54.64%, 0.005 < P < 0.01). It was concluded that antisense blocking of chk1 gene could increase the apoptosis sensitivity to irradiation.
*Apoptosis/radiation effects ; Cell Cycle/radiation effects ; HL-60 Cells ; Oligonucleotides, Antisense/*genetics ; Protein Kinases/*genetics ; Protein Kinases/metabolism ; Radiation Tolerance/*genetics ; Transfection

Objective To evaluate the impact of 1125 seeds para-tracheal braehytherapy on regional tissue injury in rab-bit models. Methods 42 rabbits were randomized into 7 groups. Group 1 to 6 belong to study groups (in which 1,4,5 and 6 belong to "dose gradient" subgroup, while 2,3 and 4 to "chronologic" subgroup) , while the last group acts as negative con-trol. The activity of seeds in study group were 0.3 mCi in group 1, 0.5 mCi in group 2 to 5, 0.7 mCi in group 5, and 0.9mCi in group 6. False seeds (0 mCi) were used for the negative control. 4 seeds with equal dosage were implanted between trachea and esophagus in each rabbit under general anesthesia. Seeds arrangement was made according to Paris principle. For the tissue injury evaluation, group 2 was sacrificed by the end of first month post-operatively, group 3 at the end of the second month, and group 4 end of the third month. The rest of rabbits were also sacrificed at the end of the third month. Pieces of adjacent e-sophagus and trachea were sampled from each rabbit. Tissue injury features such as inflammation, edema, congestion or fibrosis as evaluated histologically. Results All rabbits were healthy during study period except 5. Histological analysis revealed that trachea samples from all groups had lymphocytas and plasma cells infiltration as signs of chronic inflammation, hut fibrosis was nut clearly visible. There were no differences between study and control groups with respect to inflammation, edema and con-gestion scores. But in groups which received the highest doses of radiation or sacrificed at 60 d showed more eosinophil infiltra-tion and epithelum degeneration, and statistical significance was reached between these groups and control. Esophageal samples had less histological changes compared with trachea. Conclusion Para-tracheal implantation of ~(125)Ⅰ seeds with therapeutic or higher dosage only induce minor and reversible damage to the regional tissue. This implies that ~(125)Ⅰ implants adjacent to trachea or esophagus are clinically safe.