Objective To observe the efficacy of folic acid combined with mecobalamine for the treatment of vascular mild cogni-tive impairment (VMCI) in patients with cerebral small vessel disease (SVD) and hyperhomocysteinemia(Hcy) .Methods A total of 84 VMCI patients with cerebral small vessel disease and Hcy were randomly divided into combination group and control group . Two groups received conventional therapy for 6 months .Besides ,the combination group received folic acid combined with mecobal-amin .The level of plasma Hcy and ADAS-cog score were observed before and after 3 months and 6 months treatment .Results Af-ter treatment ,plasma Hcy significantly lower in the combination group (P<0 .01) ,whereas it did not show any improvement in the control group .ADAS-cog scores in combination group decreased compared with that of before treatment ,but there was no statisti-cally significant difference after 3 months treatment(P>0 .05) .However ,after 6 months treatment ,the ADAS-cog scores decreased obviously than that in the before treatment group (P<0 .05) .ADAS-cog scores in control group increased compared with before treatment ,but there was no statistically significant difference in after treatment (P>0 .05) .After 3 months treatment ,there was no significant difference on ADAS-cog score between combination group and control group (P>0 .05) ,however ,there had significant difference between the two groups after 6 months treatment(P<0 .05) .Conclusion The level of plasma Hcy could be reduced by adding folic acid and mecobalamin .Treatment of hyperhomocysteinemia may delay the progression of vascular cognitive impairment w hich caused by cerebral small vessel disease .

Objective To investigate the feasibility of the lower cervical spine (C3 -C7 ) laminar screw technique for fixing adult posterior cervical spine .Methods We chose 9 formalin fixed moist adult cervical specimens ,which consist of male 6 and female 3 of the age 38 to 63 years old .The average age is 51 .9 years old and the average height is 165 .6 cm .Then we measured the thickness and heightof C3 -C7 lamina ,the lamina length of L1 ,L2 ,and the lamina of axis and the sagittal plane angle .Results The thickness and height of C3 -C7 lamina ,and the lamina length of L1 and L2 of adult male is bigger than adult women .There was statistical sig-nificance between the thickness ,height ,lamina length difference of different genders lamina (P<0 .05) ,but no significant difference between the left and the right (P> 0 .05) .The average lamina thickness of C2 ,C3 ,C4 ,C5 ,C6 ,C7 were respectively 4 .70 ,3 .87 , 3 .30 ,3 .84 and 5 .16 mm .The lamina thickness which was more than 4 .00 mm accounted for 54 .4% .The lamina thickness of C3 , C4 ,C6 ,C7 which was more than 4 .00 mm accounted respectively for 77 .8% ,61 .1% ,33 .3% ,and 88 .9% .Conclusion Crossing laminar screws in cervical spine is feasible in anatomy .The operation can make under direct vision ,and can accurately estimate the screw path length and entry angle .Patients with anatomic abnormalities can be used as an alternative fixation technique or as fixed in the fixed mode fails .So the results can provide a reference for clinical application .

Objective To research the effect of GGCX gene on MMP13 in rabbit osteoarthritis cartilage cells and investigate its effect on osteoarthritis cartilage degeneration.Methods Six Japanese big ear rabbits weighted (2.0±0.2)kg were randomly di vided into three groups,each group seted a rabbit as control.Anterior cruciate ligament transection method was used to build osteoarthritis cartilage degeneration model at second,forth,sixth week.Articular cartilage was separated successfully after the model were built,cartilage cells were divided from articular cartilage and cultured in 6-well cell culture plate.Cartilage cells were divided into blank group,negative control group and transfection group.PCR method and Western blot were conducted to detect GGCX and MMP13 expressed at the level of mRNA and protein.Results Compare with blank group and negative control group,the expressin level of GGCX incresed,while the MMP13 expression level dcresed(P＜0.05).Conclusion Over expression of GGCX gene can ob viously decrease the expression of MMP13,it provide experimental basis for osteoarthritis of the in vitro gene therapy.

Antineoplastic Agents ; administration & dosage ; adverse effects ; therapeutic use ; Asparaginase ; administration & dosage ; adverse effects ; therapeutic use ; Child ; Drug Administration Routes ; Drug Administration Schedule ; Forecasting ; Humans ; Leukemia ; drug therapy ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy

Antineoplastic Agents ; administration & dosage ; adverse effects ; Asparaginase ; administration & dosage ; adverse effects ; Child ; Child, Preschool ; Combined Modality Therapy ; Dose-Response Relationship, Drug ; Drug Hypersensitivity ; prevention & control ; Female ; Humans ; Hyperglycemia ; chemically induced ; prevention & control ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; Severity of Illness Index ; Time Factors ; Treatment Outcome

OBJECTIVEThis paper aims to study the effects of gossypol acetic acid (GAA) on proliferation and methylation level of human MutL homologue 1 (hMLH1) gene in human tongue cancer cell line Tca8113.

METHODSThe MTT assay was used to determine the effects of the acid on the proliferation inhibition in Tca8113 cells treated with different GAA concentrations. Nested methylation-specific polymerase chain reaction (nMSP) was used to detect the change in the methylation level of hMLH1 after 48 and 72 h with 30 and 15 micro mol L(-1) GAA treatment.

RESULTSMTT assay results showed the growth and proliferation inhibition of Tca8113 cells in the experimental GAA group after 24 h to 72 h of GAA treatment. The nMSP results indicated that the average optical density of hMLH1 in the Tca8113 cells significantly changed after the GAA treatment (30 micro mol L(-1) GAA for 48 h and 15 micro mol L(-1) for 72 h) (P<0.05) compared with that of the control group.

CONCLUSIONGAA does not only inhibit Tca8113 proliferation but also has a demethylation effect on the hMLH1 gene. These phenomena may be part of an underlying tumor-suppression mechanism of GAA.

Objective To investigate the expression of CyelinD1 protein in nephroblastoma.Methods The tissue microarray were made in 28 cases of nephroblastoma and 19 cases of renal tissue adjacent to tumor.The expression of CyclinD1 and p53 proteins were detected by immunohistochemistry.Results The positive rate of the expression of CyclinD1 and p53 protein was significantly different between nephroblastoma and renal tissue adjacent to tumor (P < 0.05).The positive rate of the expression of CyclinD1 and p53 protein was significantly different in different degree of differentiation of nephroblastoma (P < 0.05).The expression of CyclinD1 and p53 protein was positively correlated (P < 0.05).Conclusions The CyclinD1 and p53 might be used as the marks for estimating the degree of differentiation of nephroblastoma.The over-expression of CyclinD1 and the mutation of p53 might play the vital role in nephroblastoma.

Objective The purpose of this study was to investigate the effects of gossypol acetic acid (GAA) on protein and mRNA expressions of hMLH1 gene in human tongue carcinoma cell line Tca8113 in vitro in order to discuss the mechanism of tumor suppression of GAA. Methods (1) Western-blot was used to study the effects of GAA on protein expressions of hMLH1 gene in Tca8113 cell line treated by different concentrations of GAA for 48 h. (2) Real-time fluorescence quantitative PCR (RFQ-PCR) was used to investigate the effects on the mRNA expressions of hMLH1 gene in Tca8113 cell line treated by GAA for 48 h. Results (1) Compared with the control group, the results of Western-blot showed that the protein expression of hMLH1 gene was increased after treatment by GAA for 48 h ( <0.05) . (2) The results of RFQ-PCR indicated that the mRNA expression of hMLH1 gene was increased after GAA treatment for 48 h ( <0.05) . Conclusion GAA could up-regulate protein and mRNA expression of hMLH1 in Tca8113 cell line, which indicated that it may be one of the mechanisms of tumor suppression effect of GAA.

Objective To evaluate the efficacy of ultrasound-guided combined C5 and superficial cervical plexus block in patients undergoing clavicle surgery.Methods Sixty ASA physical status Ⅰ or Ⅱ patients,scheduled for elective clavicle surgery,were randomly divided into 2 groups (n =30 each) using a random number table:injection with 10 ml local anesthetic guided by ultrasound group (group U),and injection with 10 ml local anesthetic guided by anatomical landmark group (group A).A mixture of 0.375 ％ levobupivacaine and 1.0％ lidocaine was used.The time spent performing the block onset time of analgesia,onset time of analgesia in the medial border,midpoint and lateral border of the clavicle and duration of analgesia were measured.The effectiveness of block (excellent,good,failure) was assessed.The complications were observed.Results Compared with group A,the time spent performing the block was significantly prolonged,the onset time of analgesia in the lateral border and midpoint of the clavicle was shortened,the rate of excellent anesthesia was increased,and the duration of analgesia was prolonged in group U (P ＜ 0.05).No complications occurred in group U,while vascular puncture occurred in 3 cases,and one patient developed mild toxic reaction in group A.Conclusion Ultrasound-guided combined C5 and superficial cervical plexus block provides better block,with faster onset time of analgesia in the lateral border and midpoint of the clavicle,longer duration of analgesia and fewer complications as compared with that guided by anatomical landmarks in patients undergoing clavicle surgery.

Objective To assess the efficacy of high intensity focused ultrasound (HIFU) for the ablation of feeding-artery in uterine fibroids.Methods A total of 45 women with uterine fibroids who had children accepted HIFU treatment.Color Doppler and contrast-enhanced ultrasound were used to target the supply vessels entered the fibroid.HIFU treatment was focused primarily on locations where supplying vessels entered the fibroid.Conventional ultrasound,color Doppler ultrasound,contrast-enhanced ultrasound and MRI were performed before and after HIFU treatment to observe the changes of imaging.Results After HIFU treatment,the volume of uterine fibroids decreased to certain extent.The blood signals decreased or disappeared in the treated regions.Bewteen two groups of the uterine fibroids diamete ≥5 cm and ＜5 cm,there were significant differences in the percentage of the nonperfusion regions in the volume of uterine fibroids (≥70％,P ＜0.05).Conclusions Ablation of feeding artery by HIFU is an effective treatment for the uterine fibroids.HIFU treatment is effective for the ablation of feeding-artery in uterine fibroids whose diameter less than 5 cm.