Arsenic trioxide(As2O3)effectively triggers apoptosis in acute promyelocytic leukemia (APL) cells and induces complete remission and cure in most APL patients ,if they can refrain from early mortality .In the last few years,it has been under investigation as a potential treatment for non -APL leukemia and a variety of sol-id tumors.In the meantime,it has been found that As2O3 also inhibits proliferation of non -APL leukemia cell and several solid tumor cell such as liver ,esophageal ,and gastric cancer cell in vitro or in vivo in the more and more studies .The molecular mechanisms that As 2 O3 induces cellular apoptosis in non APL leukemia cell and solid tumor cells have been discussed ,which also includes building new targeting preparation in order to obtain much more satisfying therapeutic effect and relieve its cellular toxic and side effect and so on.Here, we give a summary which is connected with the research progress above .

0.05). There was significant difference between G_1, G_2and G_3(P0.05). Low expression levels in G_4 (Ⅲ,Ⅳ) were observed.Significant differences were noted between expression levels in G_4 (Ⅲ,Ⅳ) and in G_2, G_3 or G_4 (Ⅰ,Ⅱ; P

Objective To investigate the optimum techniques for processing Yuhuanlian with microwave. Methods Nine samples were obtained by orthogonal design. Thin-layer chromatography was used to determine berberine in Yuhuanglian. The content of berberine was taken as the index for the evaluation on the superiority of processing techniques. Results The optimal processing techniques for Yuhuanglian with microwave was suggested as follows:A2B2C3, moistened for 90 minutes, put 2 cm thick, with 80% of the microwave, heating 3 minutes. Conclusion The method is simple, easy to control, easy to use, easy to promote, and the quality of processed products is better.

Objective To monitor the function of infection on myelination in white matter damage,neonatal Wistar rats of postnatal day 2 (P2) and postnatal day 7 (P7) were injected intraperitoneally with the same doses of lipopolysaccharides (LPS),and 2',3 '-cyclic nucleotide phosphodiesterase (CNPase) and myelin basic protein (MBP) were labeled in immature oligodendrocytes and mature oligodendrocytes.To investigate the function of tumor necrosis factor(TNF)-α according to test the change of TNF-α expression in the brain.Methods Ninty-six neonatal Wistar rats were randomly divided into four groups (each group 24 rats):group A:LPS (5.0 mg/kg) was injected intraperitoneally on P2 ; group B:LPS (5.0 mg/kg) was injected intraperitoneally on P7 ;group C1 and C2 were control groups in which equal amount of normal saline was injected intraperitoneally on P2 or P7.The expression of CNPase at 24 h after injection and MBP at P14 in brain tissue of each group were measured by immunohistochemistry and express of TNF-α mRNA at 4 h after the injection was measured by RT-PCR.Results Punctate hemorrhage in the corpus callosum,external capsule and intraventricular hemorrhage were seen in group A.Periventricular leukomalacia appeared in the corpus callosum and glial cells hyperplasia could be seen periventricular in P14 rat brains,but not found in the group B and any of the saline-injected rat brains.Compared with group C1 and C2 respectively,CNPase-positive cells showed obvious decrease in the area of white matter in periventricular in group A(106.93 ± 2.62 vs 113.67 ± 2.69,P ＜ 0.01) and group B (96.37 ± 1.82 vs 101.65 ± 2.01,P ＜ 0.01).Following LPS treatment in group A,the protein expression of MBP in neonatal brain decreased evidently compared with group C1 at P14 (128.21 ± 2.99 v s 134.81 ± 2.98,P ＜ 0.01),while no significant change was found between group B and group C2(134.77 ±3.68 vs 134.81 ±2.98,P ＞0.05).After 4h of the LPS treatment,the level of TNF-α mRNA was greatly increased in group A,it was significantly higher than that in group B (1.79 ± 0.04 vs 1.18 ± 0.04,P ＜ 0.01).Conclusion Intraperitoneal injection of LPS to the development neonatal rats can lead to dysmyelination and white matter damage.The expression of TNF-oα mRNA increased significantly in these immature neonatal rats,while only myelination delay occurred in those of mature neonatal rats without dysmyelination.

Objective To explore the performance of serum AFP-L3 and PIVKA-Ⅱ in differential diagnosis of benign and malignant liver disease in high risk population.Methods The serum levels of AFP-L3 and PIVKA-Ⅱ in 48 patients with primary hepatic carcinoma,43 patients with cirrhosis and 81 patients with chronic hepatitis B were analyzed retrospectively.Results There was no statistically different significance among the median levels of serum AFP in primary hepatic carcinoma patients,cirrhosis patients and chronic hepatitis B patients (x2=4.014,P=0.134).Both median level of AFP-L3 and PIVKA-Ⅱ in primary hepatic carcinoma patients were higher than cirrhosis patients and chronic hepatitis B patients (x2 =33.93,52.33,both of P values were below 0.001).The specificity (92.74％) of AFP-L3 and the sensitivity (79.17％) of PIVKA-Ⅱ were all higher.The accuracy (84.88％) of combined detection in series was the highest,with its 47.92％ of sensitivity and 99.19％ of specificity.Conclusion Combined detection PIVKA-Ⅱ and AFP-L3 series will help to differential diagnosis of benign and malignant liver disease in high risk population.

ObjectiveTo explore the effects of optional cesarean section on the level of plasma motilin and serum gastrin in umbilical blood and their relationship with gastroenteric symptoms of neonates. MethodsWe measured the concentrations of plasma motilin and serum gastrin in umbilical blood from neonates undergoing optional cesarean operation, emergency cesarean section and vaginal delivery by radioimmunoassay(RIA). ResultsFull-term deliveries undergoing optional cesarean section were with significant gastrointestinal symptoms. Plasma motilin and serum gastrin were significantly lower in neonates undergoing cesarean operation without birth initiate group(optional cesarean section)than that in cesarean section with birth initiate group and vaginal delivery group (P<0.05). ConclusionCesarean operation without birth initiate influences neonatal gastroenteric symptoms.Breast feeding which begins as early as possible will help to relieve those symptoms.

BACKGROUND:With more and more elderly patients suffering lumbar degenerative disease undergoing internal fixation, infection after spinal internal fixation is a common complication in orthopedic surgeries, but its treatment strategy remains controversial.OBJECTIVE: To explore the curative efficacy of incision infection after internal fixation in the elderly with lumbar degenerative disease.METHODS: 197 patients with lumbar degenerative disease undergoing internal fixation and followed up for more than 2 years admitted in Department of Orthopedics, Beijing Shijitan Hospital Affiliated to Capital Medical University from January 2012 to January 2015, were analyzed retrospectively. The follow-up time was 2-4.9 years. There were 97 cases of lumbar stenosis, 29 cases of lumbar disc herniation, 33 cases of lumbar spondylolisthesis, 17 cases of degenerative scoliosis and 21 cases of lumbar compression fractures.RESULTS AND CONCLUSION: (1) Eleven patients experienced incision infection, including ten acute, and one delayed infection. (2) Among acute infected cases, three were superficial infection in three cases and seven had deep infection,who characterized as exudation (10/10), local pain (8/10) and fever (9/10). Acute infected cases received bacterial culture, drug sensitive test, antibiotic therapy, and debridement of the infected wound, and leaving all internal fixators in situ in all but one case. (3) For delayed infection, one patient had local pain, incision exudation, and intermittent fever,and then the internal fixators were removed. (4) Pseudarthrosis was not founded during 2-year follow-up in all patients.(5) These results suggest that for the elderly patients suffering lumbar degenerative disease with infection after internal fixation, intravenous antibiotics, debridement plus drainage are recommended, but without internal fixator removal, and repetitive debridement and drainage is a rational choice if necessary.

Objective To explore the down-regulation of advanced receptor for advanced glycation end products(RAGE)on expression of high mobility group protein B1(HMGB1)in glioma cells line and the volume change of transplanted tumor in nude mice. Methods HMGB1 expression in glioma LN229 cells line (divided into a control group and a study group) was observed by immunohistochemical assay and Western blot. The control group received normal saline,whereas the study group received RAGE receptor blocking agent FPS-ZM1. Expression of HMGB1 protein was detected by the same methods. The difference of the expression was examined by independent sample t test. 30 Nu/Nu nude mice were randomly divided into two groups;the above two kinds cell lines were injected into the same area of the left back of nude mice. Six weeks after injection ,the volume size was measured six times ,and the variance of repeated measurement data was used to analyze the difference of the volume change. Results HMGB1 protein was mainly expressed in the cytoplasm and nucleus. As compared with the control group,HMGB1 protein expression levels were decreased in the study group(P < 0.05),the growth rate of transplanted tumor in nude mice was significantly faster in the control group than in the study group ,the difference was statistically significant(P < 0.05). Conclusions The growth and invasion of HMGB1 protein may be involved in glioma by RAGE receptor. RAGE receptor blocker FPS-ZM1 can significantly reduce the expression of HMGB1 protein and inhibit the growth of transplanted tumor volume. It is expected to be used for the research on glioma cell apoptosis.

In view of the new situation in rapid variation with food safety and nutrition, and an urgent need of the practical talents in China, this study proposes corresponding reforming measures in improving teaching principle, teaching content, teaching methods, teaching equipment, teaching evalu-ation and training teachers.

Objective To explore the correlation between the joint detection of cholinesterase(CHE),alpha-L-fucosidase(AFU) and alpha-fetoprotein(AFP)and primary hepatic cancer(PHC).Methods 56 cases of patients with PHC(PHC group),52 cases of patients with liver cirrhosis(LC group)and 60 cases of healthy individuals(control group)were enrolled in this study,and serum levels of CHE,AFU and AFP were detected and statistically analysed.Results Serum levels of CHE in patients with PHC were negatively correlated with levels of AFU and AFP(correlation coefficient was -0.889 and -0.797 respectively,P <0.05),the ser-um levels of CHE in patients with LC were also negatively correlated with levels of AFU and AFP (correlation coefficient was-0.598 and -0.653 respectively,P <0.05).The positive rates of joint detection of CHE,AFU and AFP in PHC group and LC group were higher than that in the control group,had statistically significant differences(P <0.05 ).Conclusion CHE,AFU and AFP are sensitive indicators of liver lesions,and the joint detection could provide reference value for diagnosis and monitoring pro-gression of PHC.