Myeloid-derived suppressor cells (MDSC) are a heterogeneous population of cells of myeloid origin that comprises myeloid progenitor cells and immature macrophages, which expand in tumorbearing mice and patients' bone marrow, spleen and peripheral blood and recruit to the tumor site. MDSC express high levels of arginase 1 (ARG1), inducible-nitric oxide syntheses (iNOS), reactive oxygen species (ROS) and peroxynitrite. They could suppress T-cell functions by cell contact or not, and induce regulatory T cells (Treg), all of the above are its weapons to defend individuals' immune system. Anti-tumor strategies targeted at MDSC develop rapidly now. In this review, we briefly introduce the strategies that targeted at MDSC and their mechanisms.

Objective To research and design a system of data integrated warehouse oriented to HIS. Methods The system was constructed by developing special data integrated warehouse, data integrated mart, XML(SQL) interface of script, etc. Results The anticipated result was achieved by applying the system architecture. Conclusion It is feasible to construct the system with special intelligent modular kits comprising data integrated warehouse, data integrated mart, and so on. The system is suitable for medical data mining and processing oriented to HIS.

Objective To evaluate the safety of nasogastric tube feeding and nasojejunal tube feeding in early enteral nutrition treatment of acute pancreatitis.Methods Using key words,subject headings,and citation tracing,we searched literatures reporting randomised controlled trials on early enteral nutrition treatment of acute pancreatitis through nasojejunal tube and nasogastric tube in the following databases:PubMed,Embase,Cochrane library,Wanfang,China National Knowledge Infrastructure (CNKI),and VIP published since the founding of the databases up to 2016.Meta-analysis was performed with the selected literature.Results Seven randomised controlled trials with 367 patients were included.Meta-analysis showed that the nasogastric tube group was not inferior to the nasojejunal tube group in the incidence of recurrent abdominal pain,gastrointestinal adverse reaction,the total length of hospital stay,and mortality.Conclusion Enteral nutrition via nasogastric tube is safe and well tolerated,may be a safe approach of nutrition treatment for acute pancreatitis.

Candida albicans ; genetics ; pathogenicity ; Extracellular Matrix ; metabolism

Objective To observe the effects of sodium arsenite (NaAsO2) on the expression of transcription factor nrf2 (Nrf2) and heme oxygenase 1 (HO-1) in Chang liver cells, and to explore the possible mechanism by using buthionine sulfoximine ( BSO), a GSH synthesis inhibitor. Methods Chang liver cells were treated with NaAsO2 at the doses of 5, 10 and 20 ?mol/L, alone, for 24 h, or pretreated with BSO (3 mmol/L, 12 h). Western blot assays were used to detect the protein expression of Nrf2 and HO-1. Results The protein expression of Nrf2 and HO-1 significantly increased in 5, 10 and 20 ?mol/L of NaAsO2 alone groups, and Nrf2 and HO-1 protein expression was up-regulated even higher by BSO pretreatment (P

Objective To investigate the proliferation inhibition and apoptosis induction effect of thalidomide(Thal) and its joint effect with 5-Fu on MGC-803 cell line. Methods The morphological changes of MGC-803 cells with AO/EB stain were observed under fluorescence microscope. The proliferation inhibition effeet was evaluated with MTT. The apoptosis induction effect was determined by FAM. Results The results of MTr array were as below: the difference was significant between Thai groups of 25 mg/L or above concentration and the control group (P＜0.05), 5-Fu of all testing concentrations showed significant difference compared with the control gToup(P＜0.01). For combined groups with the same concentration of 25 mg/L 5-Fu,combined groups showed distinct difference from the corresponding 5-Fu group (P＜0.01), but two combined groups showed no distinct difference with each other (P＞0.05). For combined groups with the same concentration of 5-Fu 12.5 mg/L, 5-Fu plus 50 mg/L or 100 mg/L Thai showed no distinct difference from 5-Fu group of 25 mg/L(P＞0.05). With FAM study, all test groups showed significant difference compared with the control group (P＜0.01). There was also significant difference between two test groups arbitrarily (P＜0.01).Conclusion Both Thai and 5-Fu could inhibit the proliferation and induce the apoptosis of MGC-803 cells.The effect is reinforced with the combination significantly. Combination with Thai could decrease the concentration of 5-Fu but have the similar effect.

Objective To study the effects of olanzapine on glucolipid metabolism,liver function and prolactin level in childhood onset schizophrenia(COS) to provide reference for clinical medication.Methods Thirty-eight patients with COS aged 13-17 years old were treated with olanzapine for at least two weeks.The changes of body mass,alanine aminotransferase(ALT),aspartate aminotransferase (AST),total cholesterol (TC),triglyceride (TG),glucose (GLU) and prolactin (PRL) were detected and compared between before and after treatment.Results The body mass after medication in children patients was significantly increased,average increase by (3.50-t-1.90)kg (P＜0.01).The levels of ALT,AST,TC,TG and PRL after treatment were higher than before treatment (P＜0.05).However,there was no statistically significant difference in blood GLU level between before and after treatment(P=0.598).The body mass change before and after treatment was positively correlated with ALT and AST levels(r=0.366,0.377,P＜0.05);whereas the PRL level before and after treatment was negatively correlated with the body mass change (r=-0.432,P＜0.01).Conclusion Olanzapine can lead to the body weight gain and increase of ALT,AST,TC,TG and PRL levels in COS patients.

Objective To explore the mechanism of vessel endothelial dysfunction in rats under intermittent hypoxia (IH). Methods The respiratory simulation system was used to simulate IH. Sixty C57BL/6J rats (male) were randomized into control group and IH group. The rats of IH group were exposed to IH 8 hours per day for 6 weeks. The serum levels of hypoxia inducible factor (HIF)-1a and stromal cell derived factor (SDF)-1a were assessed by ELISA. The serum levels of reactive oxygen species (ROS) were detected in two groups. The serum expression of miR-199a-5p was detected by real-time fluorescent quantitative PCR in two groups. The dual luciferase report system and point mutation test were used to verify target gene for HIF-1a. Results The serum levels of HIF-1a and SDF-1a were significantly higher in IH group than those of control group (μg/L:1.60±0.02 vs. 1.19±0.02, 1 823.00±8.97 vs. 1 444.00±17.90, P<0.01). The serum level of ROS was significantly higher in IH group than that of control group (U/mL:487.66±35.73 vs. 211.57±23.82, P<0.01). The serum level of miR-199a-5p expression was significantly lower in IH group compared to that of control group (1.31±0.07 vs. 3.47± 0.17, P<0.01). The result of dual luciferase reporter gene detection confirmed that target gene of miR-199a-5p was HIF-1a. Conclusion The serum level of miR-199a-5p is decreased first due to IH, and then its target gene (HIF-1a) is increased. HIF-1a can induce the increased level of SDF-1a, and its receptor (CXCR-4 ) is also increased. Finally, HIF-1a can increase the serum level of ROS, resulting in the endothelial dysfunction.

Structural heart disease includes congenital cardiovascular structural abnormalities, valvular heart disease and cardiomyopathy, which shows the common features of cardiac anatomical structure and hemodynamic abnormalities, especially anatomical abnormalities. Echocardiography, especially three-dimensional (3D) ultrasound, is good at displaying anatomical structure and blood flow abnormalities. As a non-invasive method of examination, it has advantage in the evaluation of such heart diseases. In recent years, the gradual rise of 3D printing technology can make physical printing, and the printed heart model can stereoscopically display abnormal state of heart diseases. Ultrasound combined with 3D printing technology may provide more intuitive and accurate information for the assessment of structural heart disease.

OBJECTIVETo evaluate digital rectal examination (DRE) , transrectal ultrasonography (TRUS) , free/total (f-PSA/ t-PSA) prostate-specific antigen (PSA), and PSA density (PSAD) in the diagnosis of prostate cancer (PCa) in patients with PSA < or = 4.0 microg/L.

METHODSBetween April 1996 and December 2012, a total of 343 subjects, aged 30 -91 years, with PSA < or =4.0 microg/L and abnormal findings on DRE or TRUS underwent prostatic biopsy. Based on the levels of PSA, the subjects were divided into four groups: 0 -1.0, 1.1 -2. 0, 2.1 -3. 0, and 3.1 -4.0 microg/L. The diagnostic values of DRE, TRUS, f-PSA/t-PSA, and PSAD were assessed in those with different PSA levels. According to the age, the subjects were again divided into five groups: C49 yr, 50 -59 yr, 60 -69 yr, 70 -79 yr, and > 80 yr. The rates of PCa detection in relation to PSA levels were estimated in different age groups.

RESULTSOf the 343 subjects, 65 (19.0% ) were diagnosed with PCa, with detection rates of 16.28% (21/129) , 17. 17% (17/99), 21.82% (12/55), and 25.00% (15/60) in those with the PSA levels of 0 -1.0, 1.1 -2.0, 2.1 -3.0, and 3.1 -4.0 microg/L, respectively. There were statistically significant differences in f-PSA/t-PSA between the PCa patients and non-PCa subjects with the PSA level > 2.0 microg/L (P <0.05) , but not with the PSA level < or =2.0 microg/L (P > 0.05) , nor did PSAD show any significant difference between the PCa and non-PCa groups ([0.09+/-0. 16] versus [0. 06 +/- 0. 07] micro/L/ml, P > 0. 05). The rate of cancer detection rose -with the elevation of the PSA level, but had no statistically significant difference among different age groups (P >0.05).

CONCLUSIONPSA 2.1 -4.0 microg/L with abnormal DRE and TRUS findings should be considered as a warning signal, which requires regular follow-up and PSA detection. With f-PSA/t-PSA <0. 15 with or without abnormal DRE and TRUS findings, routine prostate biopsy should be performed. PCa diagnosis cannot be effectively established by DRE, TRUS, f-PSA/t-PSA, and PSAD in those with PSA < or = 2.0 microg/L.

Adult ; Aged ; Aged, 80 and over ; Biopsy ; Humans ; Male ; Middle Aged ; Prostate ; pathology ; Prostate-Specific Antigen ; blood ; Prostatic Neoplasms ; diagnosis ; pathology