Child ; Humans ; Proteomics ; methods

Resident standardization training is a major part of education of medical students after graduation , and is extremely important for high-level physician training and raising the quality of medical treatment. We trained the residents comprehensively according to the characteristics of echocardiography in terms of theoretical knowledge, clinical manipulative skills, clinical thinking ability, scientific research ability and communication and team cooperation ability, and carried out the relative examination according to the training. On the basis of practice, we explored the establishment of a standardized training mode and evaluation system suitable for echocardiography resident doctors in China.

AIM: To analyze neuron-related gene expression before and after mesenchymal stem cells (MSCs) differentiating into neuron-like cells. METHODS: MSCs were induced to neuron-like cells with ?-mercaptoethanol. Before inducement and at 8 h after inducement, the total RNA was extracted, then the expression of microtubule-associated protein-2 (MAP-2), growth-associated protein-43 (GAP-43), NSE, nestin and neurofilament (NF) mRNA were detected with RT-PCR. RESULTS: NSE mRNA expressed before and after inducement, MAP-2, GAP-43, nestin and NF mRNA only expressed after inducement. CONCLUSION: The differentiation of MSCs into neuron-like cells may be related to MAP-2, GAP-43, nestin and NF expression. [

Child ; Child, Preschool ; Humans ; Sleep Apnea, Obstructive

Objective To study the risk factors affecting neoplasm recurrence and survival of hepatocellular carcinoma(HCC)following liver transplantation(LT).Methods The clinicopatholo gic data,neoplasm recurrence and survival results of 118 patients with HCC receiving LT were retro- spectively analyzed and various clinicopathologic risk factors for neoplasm recurrence and survival were evaluated by univariate and multivariate analysis.Results The follow-up time ranged from 1 to 32 months.The recurrence rate was 37.3% and the mortality was 35.5%.The 12-,18-,24-month survival rate was 84.55%,70.30% and 62.24%,respectively.The 12-,18-,24-month neoplasm free survival rate was 69.05%,66.93% and 61.38%,respectively.In the univariate analysis,por- tal vein neoplasm thrombus(PVTT),Milan-criteria,neoplasm size,histological differentiation and pTNM stage were associated significantly with neoplasm recurrence,and PVTT,Milan-criteria,pre- operative alpha-fetoprotein(AFP),histological differentiation and pTNM stage were associated signif- icantly with survival rate;In the multivariate Logistic regression analysis,PVTT and histological dif- ferentiation were independent predictive factors of neoplasm recurrence,and multivariate Cox regres- sion analysis showed that PVTT and AFP independently associated with prognosis.Conclusions PVTT and histological differentiation are the most important predictive factors of neoplasm recur- rence,and PVTT and AFP independently predict the survival of patients undergoing LT.

The somatostatin analogue pasireotide is a new type of protein which is the first therapeutic agent targeted to the pituitary.Pasireotide can prevent adrenocorticotropic hormone release and inhibit the growth of tumor cells after coupling with somatostatin receptor of the target cell membranes.Pasireotide has a high binding affinity for most of somatostatin receptor (SSTR) subtypes and in particular for SSTR5.Pasireotide can paly an important role in the new round of new targets for individualized diagnosis and treatment of tumors through the studies of translational medicine.

Diabetic nephropathy (DN) is currently the most common complication of diabetes. It is considered to be one of the leading causes of end-stage renal disease (ESRD) and affects many diabetic patients. The pathogenesis of DN is extremely complex and has not yet been clarified; however, in recent years, increasing evidence has shown the important role of innate immunity in DN pathogenesis. Pattern recognition receptors (PRRs) are important components of the innate immune system and have a significant impact on the occurrence and development of DN. In this review, we classify PRRs into secretory, endocytic, and signal transduction PRRs according to the relationship between the PRRs and subcellular compartments. PRRs can recognize related pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs), thus triggering a series of inflammatory responses, promoting renal fibrosis, and finally causing renal impairment. In this review, we describe the proposed role of each type of PRRs in the development and progression of DN.

The aim of this study is to evaluate anti-tumor activities and mechanism of a novel kinase inhibitor ZLJ213 which targeted Aurora A and vascular endothelial growth factor receptor (VEGFR) in vitro and in vivo against human colon cancer. Results showed that ZLJ213 inhibited cell proliferation and induced cell cycle arrest and apoptosis of HCT1 16 and SW48 cell lines. In HCT116-derived xenograft, ZLJ213 dosed at 100 mg · kg(-1) inhibited tumor growth by 73.24%. The IC50 of ZLJ213 on the expression of p-Aurora A was 0.258 µmol · L(-1) analyzed by ELISA. Under the concentration of 0.08 µmol · L(-1), ZLJ213 could inhibit the activities of Aurora A, Histone H3 and VEGFR of HCT116 and SW48 cell lines. Simultaneously, ZLJ213 induced activation of Caspase 3 and PARP cleavage. Above data suggested that ZLJ213 had the ability to inhibit cell proliferation and induce cell apoptosis both in vitro and in vivo in colon cancer, and down-regulate the expression of p-Aurora A and p-VEGFR. ZLJ213 might be a potential therapeutic agent against colon cancer.
Animals ; Apoptosis ; Aurora Kinase A ; antagonists & inhibitors ; Cell Cycle Checkpoints ; Cell Line, Tumor ; drug effects ; Cell Proliferation ; Colonic Neoplasms ; pathology ; Humans ; Protein Kinase Inhibitors ; pharmacology ; Receptors, Vascular Endothelial Growth Factor ; metabolism ; Xenograft Model Antitumor Assays

Objective To investigate the induction and function of circulating CD4+ CD25+ regulatory T cells(CD4+CD25+ Treg cells)in patients with chronic hepatitis B,and their role in the progress of chronic HBV infection.Methods Twenty two patients with chronic hepatitis B(CHB),11 patients with acute hepatitis B(AHB)and 20 healthy blood donators were enrolled in the study.After stimulating with recombinant HBV antigen or anti-CD3 mAb,the fraction of CD4+ CD25+Treg cells in peripheral blood mononuclear cells(PBMC)from different subjects was analyzed using flow cytometry.CD4+CD25+ Treg cells and effector cells(PBMC-Treg)were sorted out and cultured alone or together in vitro,and the cell proliferation and cytokines production were measured. Serum HBV titers,HBV markers and liver function were also evaluated.Results The fraction of circulating CD4+CD25+ Treg cells induced in PBMC from CHB patients under the stimulation of recombinant HBsAg was much higher than that in AHB patients(F=3.47,P＜0.05)and normal controls(F=4.98,P＜0.05).With HBsAg stimulation,cell proliferation and cytokines production (IFN-γand IL-10)of CD4+ CD25+ Treg cells either from patients or from normal controls was very low when cultured alone,and there was no significant difference between two groups(P＞0.05).Cell proliferation and IFN-γproduction of effector cells from AHB patients were higher than those from CHB patients,however,when effector cells were cultured with CD4+Cd25+Treg cells at a ratio of 5:1,the cell proliferation and IFN-γ production were significantly inhibited (F=4.66,5.24,P＜0.05).Conclusion Circulating nificantly suppress the production and IFN-γ production of effector T Cells,which may be associated with the progress of chronic HBV infection.

Purpose To summarize the characteristics of computed tomography enteroclysis (CTE) in active ulcerative colitis (UC), and to explore the value of multi-slice CTE in the evaluation of UC. Materials and Methods Thirty-five patients with active UC confirmed by clinical manifestation, colonoscopy and pathology underwent CTE examination in the study. According to the modiifed Mayo-score, the patients were divided into mild group, moderate group and severe group, and the CTE manifestations were compared among the three groups. Results Among 35 patients, 6 patients were in the mild group, 13 in the moderate group, and 16 in the severe group. Submucosal bubbles had signiifcant differences between mild and moderate groups (P<0.05), bowel wall stratiifcation, disappearance of haustra and enlarged mesenteric lymph nodes were signiifcantly different between moderate and severe groups (P<0.05), and engorged vasa recta was significantly different between the 3 groups (P<0.05). However, bowel wall thickening, mural hyperenhencement, narrow lumen and fatty deposits around the rectum showed no difference between the three groups (P>0.05). Conclusion Multi-slice CTE can provide image features of bowel wall, intestinal tube and structures outside intestine in the evaluation of UC, thus it is useful in the diagnosis of active UC as well as in its clinical grading.