A series of 5H-benzo[b] carbazole derivatives were synthesized to find new TopⅡ inhibitors.The substitution pattern at C-9 was discussed.All 16 compounds were tested for their antiproliferative activities against 4 tumor cell lines (SMMC-7721,S1,HCT116,and HeLa) by sulforhodamine B assay.Four compounds were found to inhibit the proliferation of all tested cell lines.And compound 10e displayed the best antiproliferative activity against all 4 tested cell lines with IC50 values of 5.06,4.50,5.29,and 6.32 μmol/L,respectively.

Objective This study intends to explore the impacts of the establishment of chest pain center(CPC) on the door-to-balloon(D-to-B) time in patients with ST-elevation myocardial infarction (STEMI) by different transfer ways to hospital. Methods A regular CPC and a regional cooperative network were established based on the pre-hospital transmitted real-time 12-lead electrocardiogram system. The STEMI patients were divided into the following three groups by the different transfer ways to hospital before and after the establishment of chest pain center:self-referral groups (group A1, n=52, and group A2, n=65), EMS (emergency medical service ) groups (group B1, n=31, and group B2, n=92) and transfer PCI groups (group C1, n=23, and group C2, n=552). The mean D-to-B time and the rate of D-to-B below 90 minutes were compared between before and after the establishment of CPC and the reasons of reperfusion delay were analyzed. Results There were no statistical differences of the average D-to-B time [(123±78) min vs.(140±123)min, P > 0.05] and the rate of D-to-B time below 90 min (44.2%vs. 46.2%) between group A1 and group A2. The average D-to-B time was significantly shortened in group B2 [(89±66)min] while compared with that in group B1 [(155±115)min, P<0.05] and the rate of D-to-B time below 90 min was remarkably elevated in group B2 compared with that of group B1 (69.6%vs. 32.3%, P<0.05). The average D-to-B time was significant shorter in group C2 than in group C1 [(77±43)min vs. (337±662)min, P<0.05] and the rate of D-to-B time below 90 min was remarkable higher in group C2 than in group C1 (75.7%vs. 21.7%, P<0.05). The longer D-to-B time in self-referral groups was mainly due to the delay of getting informed consent before PCI when occupied catheterization laboratory was the major cause of reperfusion delay in EMS groups and transfer PCI groups. Conclusions The establishment of CPC may significantly shorten the D-to-B time and increase the rate of D-to-B time below 90 min for these patients admitted by EMS and transferred from non-PCI hospitals. However, the pathway for the self-referral patients should be further modified.

To construct the eukaryotic expression plasmid containing the p55 gene fragment of Pneumocystis and to investigate the efficient expression in COS-7 cells, the gene fragment conaining the whole length of p55 gene was used as template to amplify this fragment with PCR and the amplified fragment was then cloned to vector pGEM-T. After enzyme digestion, p55 gene was cloned to the eukaryotic expression vector pcDNA3.1(+) to construct the plasmid pcDNA3.1(+)-582. This plasmid was then transfected to the eukaryotic expression cells COS-7 and PCR and SDS-PAGE assays were used to confirm the presence of target protein in these cells. In these ways, the eukaryotic expression vector for the p55 gene of Pneumocystis of rats was successfully constructed and expressed in COS-7 cells, thus providing the basis for further studies on the nucleic acid vaccine.

Objective To investigate an effective method of treating primary hepatic cancer(PHC) with portal venous tumor thrombosis (PVTT). Methods The clinical data Of 23 patients with PHC and PVTT were retrospectivly analysed. Results Of the 23 patieats after hepatoma resection and PVTT extraction, continuous micro dose infusion chemotherapy or perfusion chemotherapy by DDS was adopted. In 8 patients with main portal vein tumor thrombus, 2 died, 4 recured in 6 months. In 8 patients with the first class branch of portal vein tumor thrombus, 2 recurrd in 6 months and 6 recurred in 12 months. In 4 patients with secondary class branch of portal vein tumor thrombus, l recurred in 12 months (P

? AlM: To estimate the clinical significance of the microculture of humor and vitreous and vancomycin intraocular injection in treatment of suppurative endophthalmitis associated with intraocular foreign bodies.
?METHODS: Totally 65 patients with penetrating eye trauma and retained intraocular foreign bodies in emergency operation and intraocular injection from January 2012 to September 2014 were regarded as the study group, another 62 patients with penetrating eye trauma and retained intraocular foreign bodies in emergency operation without intraocular injection before August 2011 were regarded as the control group. Aqueous humor and vitreous humor were taken from each patient of the study group and the control group for bacteria and fungus cultivation. The study group was treated with 1mg vancomycin intraocular injection after operation, while the control group was not.
?RESULTS: The incidence of endophthalmitis in the control group was 16% ( 10 cases ) , while in the study group was 3% ( 2 cases ) , with significant difference between two groups (x2 =6. 32, P<0. 05). The aqueous humor germiculture in both groups was in low positive rates, the study group was 3% (2 cases) and the control group was 2% (1 case), with no difference between two groups (P>0. 05). The positive rate of vitreous humor germiculture in study group was 14% (9 cases), and the incidence of endophthalmitis was 3%. The positive rate of vitreous humor germiculture in control group was 11% (7 cases) and the incidence of endophthalmitis was 16%, with significant differences between two groups (P<0. 05).?CONCLUSlON: lntraocular foreign bodies treated with emergency operation and vancomycin intraocular injections can decrease the incidence of suppurative endophthalmitis and have a good vision prognosis for the second stage of operation.

Severe liver disease during pregnancy is uncommon in clinical practice. The most common cause of liver disease during pregnancy is liver dysfunction, with an overall prevalence rate of approximately 3%. Liver disease during pregnancy is classified into the liver diseases directly caused by pregnancy and those co-existing with pregnancy, i.e., pre-existing liver disease or occasional liver disease during pregnancy. A differential diagnosis of pre-existing and co-existing liver diseases may help to improve maternal and fetal outcome. During clinical diagnosis and selection of treatment and intervention measures, priority should be given to the potential impact on mother and fetus. This article introduces the latest research advances in the general information, pathogenesis, treatment, and pregnancy outcome of major liver diseases during pregnancy and elaborates on the risk of pregnancy and related coping measures for patients with pre-existing liver disease, so as to guide clinical diagnosis and treatment and patient management.

Objective To investigate the changes in cerebral glucose metabolism induced by postoperative delirium in the elderly patients and the effects of dexmedetomidine on it.Methods Forty-two patients of both sexes aged 65-85 yr with a body mass index of 19-25 kg/m2 undergoing abdominal surgery under general anesthesia were enrolled in this study.Delirium occurred during the first 2 days after operation in 39 out of the 42 patients (29/42).The 29 patients were randomly divided into 2 groups:group delirium without any treatment (group D,n =13) and group delirium + dexmedetomidine (group Dex,n =16).The remaining 13 patients did not develop delirium after operation and served as control group (group C).In group Dex a loading dose of dexmedetomidine 1 μg/kg was administered iv over 10 min after occurrence of delirium followed by continuous infusion at 0.2-0.7μg· kg-1 · h-1.PET scan was performed within the time period in which delirium occurred.18 Fluorine-deoxyglucose was injected for observation of imaging of glucose metabolism.The standard uptake value of glucose of bilateral parietal,temporal and frontal lobes was calculated.Results Delirium was controlled within 30 min after adminnistration of dexmedetomidine.Delirium significantly reduced cerebral glucose metabolism in the bilateral parietal,temporal and frontal lobes in group D as compared with group C (P ＜ 0.05).Dexmedetomidine significantly attenuated the delirium-induced decrease in cerebral glucose metabolic rate of the 3 lobes in group Dex as compared with group D (P ＜ 0.05).Conclusion Postoperative delirium reduces cerebral glucose metabolism and dexmedetomidine can significantly control pastoperative delirium in the elderly patients.

Aim To investigate the effect of p-hydroxybenzaldehyde ( HD) on intestinal fibrosis in mice based on mouse intestinal fibrosis model and in vitro EMT model,and to explore the underlying mechanism Methods HE staining, Masson staining, immunohisto-chemistry ,qPCR, Western blot and other experimental methods were used to verify the effect of HD on intestinal fibrosis in mice and the potential mechanism. Results In vivo experiments showed that compared with the normal group, the DSS-induced intestinal fibrosis model group had shortened colon, increased colon his-topathological score, increased collagen volume fraction, and significantly increased collagen I expression. After treatment with 4, 10, and 25 mg • kg

OBJECTIVE: To explore the relationship between the time-dependent level changes of microRNA and 18S rRNA and the different postmortem interval (PMI) in rat cardiac muscle. METHODS: SD rats were sacrificed by cervical dislocation and placed at ambient temperature 25 degrees C with a humidity of 50%. Total RNA was extracted from the rat cardiac muscle at different time points after death. The levels of miR-1-2 and 18S rRNA were examined using real-time PCR in rat cardiac muscle. The results were expressed by cycle threshold (Ct) value to explore relationship between PMI and Ct value, and the regression functions were established to estimate PMI. RESULTS: The miR-1-2 level in rat myocardial tissue showed no significant changes within 120 h after death, and then began to decline. The 18S rRNA level increased gradually within 96 h after death, and then declined slowly. The nonlinear relationships were established between Ct value (18S rRNA), deltaCt value (difference between 18S rRNA and miR-1-2) and PMI. The R2 of conics fitting were 0.9487 and 0.8072, respectively. CONCLUSION Ct value of 18S rRNA and deltaCt value present a good correlation with PMI, and can be markers for estimating early PMI.
Animals ; Forensic Pathology ; Male ; MicroRNAs/metabolism* ; Myocardium/pathology* ; Postmortem Changes ; RNA Stability ; RNA, Messenger/metabolism* ; RNA, Ribosomal, 18S/metabolism* ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Real-Time Polymerase Chain Reaction/methods* ; Time Factors

OBJECTIVETo investigate the impact of the establishment of chest pain center (CPC) model based on the pre-hospital real-time tele-12-lead electrocardiogram on the door-to-balloon (D-to-B) time and short-term outcome after primary percutaneous coronary intervention (PPCI) of patients with ST-segment elevated myocardial infarction (STEMI).

METHODSA regular CPC was established with pre-hospital transmitted real-time 12-lead electrocardiogram system for pre-hospital diagnosis of STEMI and enabled the STEMI patients to bypass the emergency room and directly treated in the catheter lab to shorten the D-to-B time. The mean D-to-B time, the short-term outcome and medical costs were compared in PPCI patients before (93 cases, group A) and after (149 cases, group B) the establishment of CPC.

RESULTSAfter the establishment of CPC, the annual mean D-to-B time was significantly shortened [(127 ± 79) min in group A vs.(72 ± 23 )min in group B, P < 0.01], the shortest monthly mean D-to-B time was remarkably reduced in group B than in group A [(56 ± 11) min vs. (73 ± 14) min, P < 0.01]. The annual ratio of D-to-B below 90 minutes was significantly increased from 62.4% (58/93) in group A to 91.9% (137/149) in group B (P < 0.05) . The in-hospital mortality rate tended to be lower and the incidence of heart failure during hospitalization was significantly reduced in group B compared with group A [3.4% (5/149) vs. 6.5% (6/93), P > 0.05; 14.1% (21/149) vs. 24.7% (23/93), P < 0.05]. The length of hospital stay was slightly shortened from (8.98 ± 4.89) days to (7.79 ± 5.43) days (P > 0.05). Corrected mean medical cost went down by 9.4% (P < 0.05).

CONCLUSIONThe establishment of CPC may significantly shorten the D-to-B time, improve the short-term outcome and reduce the hospitalization cost for PPCI patients with STEMI.

Adult ; Aged ; Angioplasty, Balloon, Coronary ; Chest Pain ; therapy ; Female ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; therapy ; Percutaneous Coronary Intervention ; Prognosis ; Time Factors