Objective To compare complications incidence rates of 8-core and 12-core prostate biopsies guided with transrectal ultrasound retrospectively,and to study intervention ways to decrease complications.Methods The data of 260 consecutive patients undergoing first-time transrectal ultrasound-guided biopsy were analyzed.132 patients underwent 8-core biopsy and 128 patients underwent 12-core biopsy.Results In 8-core group,there were 7 cases of infections,15 cases of gross hematuria,7 cases of rectal bleeding and 6 cases of acute urinary retention,and in 12-core group,5 cases of infections,19 cases of gross hematuria,9 cases of rectal bleeding and 7 cases of acute urinary retention in 12-core group.There are no statistical differences of complications incidence rate between two groups (P ＞ 0.05).when prostate volume ＞ 45 ml,detection rate of prostate cancer in 12-core group was significantly higher than that in 8-core group.Conclusions There are no statistical differences of complications incidence rate between 8-and 12-core prostate biopsy.Homologous measure must be taken to reduce complications.12-core prostate biopsy is recommended as prostate volume ＞ 45 ml.

Objective To observe change of T regulatory cells (Tregs) and its relation with in-jury severity and sepsis following severe muhiple injury. Methods A total of 60 patients were em-ployed in the study and divided into severe group (30 patients) and critical group (30 patients) based on ISS scores and into sepsis group (22 patients) and non-sepsis group (38 patients) based on complication of sepsis. The proportion of Tregs in peripheral blood in different groups was detected by flow cytometry at days 1,3,5 and 8 after injury. Results The proportion of Tregs was significantly increased at day 5 postinjury, with statistical difference compared with that at day 3 postinjury (P < 0.01). The proportion of Tregs remained increasing at day 8 pestinjury (P < 0.05). At day 8 postinjury, the proportion of Tregs in critical group was significantly higher than that in severe group (P < 0.01). At the same time, the proportion of Tregs in sepsis group was significantly higher than that in non-sepsis group (P < 0.05). Spearman correlation analysis showed a positive correlation of Tregs proportion with ISS score (rs =0.654, P < 0.01). Conclusions Tregs play an important role in suppression of T cell-mediated im-munity after severe injury. The variation of Tregs can help evaluate prognosis and predict the risk of com-plicating sepsis in patients with severe multiple injury.

Objective To investigate the capability of 99 Tcm?tricine?EDDA/HYNIC?SFSIIHTPILPL ( SP94) as a specific probe for HCC imaging. Methods HYNIC?SP94 peptide was prepared by solid phase synthesis, followed by 99 Tcm labeling with tricine?EDDA as the coligand. After determination of radiochemical purity and stability, cell binding study was carried out by incubating Huh?7 cells with 99 Tcm?tricine?EDDA/HYNIC?SP94 at different specific activities (2.5, 4.0 and 30.0 GBq/μmol). The biodistribution studies and microSPECT/CT imaging were performed in Huh?7 tumor?bearing mice ( study group) and Hela tumor?bear?ing mice ( control group ) . Statistical analysis was by two?sample t test. Results 99 Tcm?tricine?EDDA/HYNIC?SP94 was synthesized with over 95% of labeling yield, which remained stable in saline and FBS up to 12 h. With increasing concentrations of 99 Tcm?tricine?EDDA/HYNIC?SP94, Huh?7 cell binding increased but became gradually saturated. In biodistribution studies, (1.02±0.26) %ID/g of tracer was accumulated in Huh?7 tumors at 0.5 h after injection of 99 Tcm?tricine?EDDA/HYNIC?SP94, higher than that in the HYNIC?SP94 blocking group ((0.34±0.09) %ID/g;t=3.537, P<0.05). Compared to Hela tumors, Huh?7 tumors were clearly visualized by microSPECT/CT, with which better imaging quality could be achieved with higher specific radioactivity. Conclusion 99 Tcm?tricine?EDDA/HYNIC?SP94 could achieve a high labeling effi?ciency and good in vitro stability as a potential diagnostic tracer specifically targeted for HCC.

Objective To investigate the regulation of miR-939-5p on USP22 gene expression and its effect on liver cancer migration and proliferation.Methods The expression of miR-939-5p in hepatoma cell lines (HepG2,MHCC-97H,SMMC-7721,BEL-7404 and Huh7) and normal liver cell line LO2 was detected by realtime PCR (qPCR).The liver cancer cells with the lowest expression were used as experimental subjects,and transfected with miR-939-5p (Experimental group) or miR-NC (Control group).qPCR was used to detect the transfection efficiency of miR-939-5p.Transwell migration assay and MTT proliferation assay were used to detect the migration and proliferation of hepatoma cells after transfected miR-939-5p.Bioinformatics software predicted target genes for miR-939-5p.The dual luciferase reporter gene verified the interaction of miR-939-5p with the target gene.qPCR and Western blotting were used to detect the expression of target genes at mRNA and protein levels after over-expression of miR-939-5p.Measurement data were expressed as (Mean ± SD),and t test was used for comparison between groups.Results The expression of miR-939-5p was significantly lower in hepatoma cell lines than in normal hepatocytes (P ＜0.01),and the expression of miR-939-5p was the lowest in SMMC-7721 cells (P＜0.01).miR-939-5p was efficiently transfected into SMMC-7721 cells [(1.01 ±0.07) vs (20.12 ± 1.27),P ＜0.01].High expression of miR-939-5p inhibited the migration ability (P ＜ 0.01) and proliferative capacity of liver cancer SMMC-7721 cells (P ＜0.05).The USP22 gene may be a target gene of miR-939-5p.The luciferase reporter gene confirmed that miR-939-5p specifically binds to the 3'-UTR of USP22 mRNA (P ＜ 0.01).USP22 expression was decreased at mRNA and protein levels after high expression of miR-939-5p (P ＜ 0.01).Conclusions The expression of miR-939-5p was down-regulated in hepatocellular carcinoma cell lines,and miR-939-5p inhibited the migration and proliferation of liver cancer SMMC-7721 cells.The molecular mechanism was to interfere with the expression of USP22 gene.

Objective To evaluate carotid sinus block (CAS) in preventing the low hemodynamic state in the perioperative period of carotid artery stenting (CAS).Method A prospective single-center randomized controlled study was conducted on 172 patients with internal carotid artery stenosis receiving CAS from May 2015 to May 2018.Patients were randomly divided into group A treated with local anesthesia of the carotid artery sinus of the trouble side under the guidance of ultrasound preoperatively and group B without local block anesthesia.The carotid artery stenosis rate,the maximum intraoperative reduction of blood pressure and heart rate,the use of atropine and vasopressor were monitored and compared between the two groups.Results There were no significant differences between the two groups in preoperative general data,degree of stenosis,plaque nature,degree of residual stenosis (P ＞ 0.05).The maximum reduction of intraoperative blood pressure and heart rate in group A was significantly lower than that in group B,and the number and dose of intraoperative atropine were smaller than those in group B (P ＜ 0.05).The number of postoperative patients with low hemodynamic status in group A and the time period of vasopressor use were significantly less than those in group B (P ＜ 0.05).Conclusion Preoperative carotid sinus block anesthesia is safe and effective in preventing low hemodynamic status in perioperative period of CAS.

Hepatocellular carcinoma is one of the common causes of tumor-related death, and it has high morbidity and mortality rates in China. Recent studies have shown that platelets are closely associated with the development of hepatocellular carcinoma. Literature review shows that platelets not only participate in hemostasis, but also act on liver cells and tumor microenvironment, promote the formation of new blood vessels, and participate in the development and progression of hepatocellular carcinoma as a cell mediator through immune response and other pathways. In addition, platelets and their derivatives can be used as potential therapeutic targets for hepatocellular carcinoma. Therefore, antiplatelet therapy is expected to become a new adjuvant strategy for the treatment of hepatocellular carcinoma, which has important clinical significance.