Objective To investigate the valuable echocardiographic parameters and to evaluate theright heart function of patients with pulmonary hypertension in ICU. Methods From March 2015 to February 2016,30 patients with pulmonary hypertension in the intensive care unit(ICU) of Dongzhimen hospital were enrolled in the experimental group,and another 33 patients without pulmonary hypertension in ICU were enrolled in the control group. All of the patients were given bedside echocardiography examination. Results Significant differences in the right atrial diameter and area ,the base diameter of the right ventricle ,the intermediate diameter portion ,the distal inner diameter of the proximal end of the right ventricular outflow tract ,the main pulmonary artery diameter ,the Tei index and the E/A were observed between the two groups. However ,no significant differences in the right ventricular free wall thickness,TAPSE,RVFAC,VREF and DT were foundbetween the two groups. Conclusion Tei index,the diameter of the right heart and the main pulmonary artery diameter are proposed to be the promising echocardiographic parameters to evaluate the right heart function of patients with pulmonary hypertension in ICU.

Objective To design a quantitative criterion and grading system for injury from adverse drug reaction (ADR) in order to serve the compensation system of injury from ADR. Methods Based on the other grading system of injury cases, the independent scores and serial grades were given to the ADR injury of different organs or different levels through two turns of consultation to 27 experts from Shanghai. Results Injury from ADR was graded from stage 1 to stage 10 according to the damage degree, with 1 stand for death and 10 for slightest injury. Conclusion The grading method of ADR based on the characteristics of injury accords with the condition of China, and can provide reference for making up the compensation system of ADR injury.

Objective Mitotic spindle and midbody are both microtubule-based temporary structures during cell growth and play essential roles in mitosis.The purpose of this study was to establish a mature and efficient method to extract mitotic spindle and midbody.Methods Through the cell cycle synchronization method,mitotic spindle or midbody was made appear inside cells.Low permeability swelling and glycerol gradient centrifugation principles were then used to extract spindle and midbody.Results By Western Blot and immunofluorescence staining,the extracts were identified as mitotic spindle and midbody.Conclusions The successful extraction of mitotic spindle and midbody from synchronized Hela cells will provide foundation for identifying the proteins located in cell during mitosis,and be of great significance to the study of molecular regulation mechanisms of mitosis and tumorigenesis.

Objective To indentify the gene expression on different fractionated radiation regimens with the same total radiation dose in xenografts with human lung adenocareinoma. Methods Forty-eight BALB/c-nu mice, implanted with human lung adenocarcinoma (Anip973), were randomized into 4 groups: normal control greup,60 Gy in 30 fractions conventional radiation group (2 Gy group) ,60 Gy in 10 fractions hypofractionated radiation group (6 Gy group) ,60 Gy in 6 fractions hypofractionaed radiation group (10 Gy group). Gene alterations were investigated with the microchip analytical procedures covering the entire genome. Genes with significantly different expression were further validated by the quantitative real-time polymerase chain reaction (RT-PCR). Results Compared to the 2 Gy group, the expression of the genes related with the cell growth inhibition and apoptesis was increased, while the genes related with the cell proliferation, anti-apoptosis and DNA damage repair were decreased in the 6 Gy and 10 Gy groups. Confirmed by RT-PCR, c-myc gene was distinctly suppressed in the 6 Gy group (2. 9%) comparing with 2 Gy (5.6%) group and 10 Gy (4.8%) group (P=0. 000,P=0. 002) , and was slightly suppressed in the 10 Gy group comparing with 2 Gy group (P = 0. 069). Conclusions In the BALB/c-nu mice implanted with human lung adenocarcinoma, the hypofractionated radiation regimens clearly inhibit the tumor growth more than conventional fractionation group, though with the same total dose. The 6 Gy group seem to be more effective than 10 Gy group in the inhibition of tumor growth.

Objective Three parameters include circumferential strain (CS),circumferential strain rate (CSr) and stiffness parameter (β) were measured to evaluate the elasticity of carotid artery using two-dimensional(2D) strain imaging and evaluate its clinical value in patients with type 2 diabetes mellitus (T2DM).Methods 60 patients with T2DM were collected and divided into carotid intima-midia thickness (CIMT) thickeness group(34 cases,1.0 mm＜CIMT≤1.2 mm) and plaque group(26 case,CIMT＞ 1.2 mm).33 normal people were supplied as control group.The systolic global peak CS and CSr of the carotid artery were obtained from short-axis view of the common carotid artery and the stiffness parameters β was measured using 2D strain imaging.All the parameters were compared among the three groups.Results The CS and CSr were decreased and β was increased in patients with T2DM (P ＜ 0.01),The CS and CSr obtained from the plaque group were less than that of the CIMT thickeness group(P ＜0.05),but the β was higher than that of the CIMT thickeness group (P ＜0.01).The CS and β were correlated significantly with CIMT respectively (r =-0.79,P ＜ 0.01 ; r =0.72,P ＜ 0.01).Conclusions 2D strain imaging is a technique for early assessing the carotid artery elasticity in patients with T2DM,the thicker the CIMT is,the smaller the deformation is and the larger the β is.

Esophageal squamous cell carcinoma (ESCC) is one of the most aggressive cancers in China, but the underlying molecular mechanism of ESCC is still unclear. Involvement of micro-RNAs has been demonstrated in cancer initiation and progression. Despite the reported function of miR-503 in several human cancers, its detailed anti-oncogenic role and clinical significance in ESCC remain undefined. In this study, we examined miR-503 expression by qPCR and found the downregulation of miR-503 expression in ESCC tissue relative to adjacent normal tissues. Fur-ther investigation in the effect of miR-503 on ESCC cell proliferation, migration, and invasion showed that enhanced expression of miR-503 inhibited ESCC aggressive phenotype and overexpres-sion of CCND1 reversed the effect of miR-503-mediated ESCC cell aggressive phenotype. Our study further identified CCND1 as the target gene of miR-503. Thus, miR-503 functions as a tumor suppressor and has an important role in ESCC by targeting CCND1.

OBJECTIVETo summarize the clinical characteristics, early diagnosis, comprehensive treatment and prognosis of 6 cases of children with post-transplantation lymphoproliferative disorder (PTLD) after liver transplantation.

METHODData of 6 cases with PTLD seen between January 2011 and December 2013 were retrospectively analyzed. The anti-rejection drug dose adjustments, the effect of rituximab, antiviral therapy and comprehensive treatment program after surgery were explored.

RESULT(1) The diagnosis of PTLD was confirmed by histologic findings. Six cases of PTLD including 3 males and 3 females were diagnosed as congenital biliary atresia and underwent split liver transplantation. The occurrence rate of PTLD was 2.9%. (2) The median time to the development of PTLD was less than 6 months. The initial symptom of PTLD in all patients was fever and clinical manifestations of PTLD were non-specific, depending on the involving organs. Five cases of PTLD developed gastrointestinal symptoms, including diarrhea, abdominal pain, and abdominal distension. One case developed respiratory symptoms, including cough and tachypnea. Three cases had lymph node involvement. In 2 cases pathophysiology involved polymorphic lymphocyte proliferation and in 4 cases B lymphocyte proliferation. (3) Two cases died, in whom EBV DNA was not detected and were diagnosed as PTLD by surgical pathology before death. Four survived cases had high EBV-DNA load and then were diagnosed as PTLD by biopsy pathology. (4) Of the 6 cases of PTLD, 2 cases died and 4 cases survived. The overall mortality was 33%. The dead cases were only treated with laparotomy because of intestinal obstruction or perforation and the survived cases were treated with tacrolimus at reduced doses or discontinuation and rituximab. In 2 cases antiviral therapy (acyclovir) was continued, including 1 cases of intestinal obstruction treated with surgical repair. All the survived patients were followed up for 4 months to 1 year and no evidence has been found.

CONCLUSIONEBV infection is the high risk factor for PTLD after liver transplantation. Close clinical surveillance of EBV DNA for pediatric liver transplantation was important for the early diagnosis of PTLD. Reducing doses of immunosuppressive agents and rituximab is the initial therapy for PTLD. A reduction in the dose of tacrolimus is suggested. Operation therapy can also play a role in the management of local complications.

Antiviral Agents ; administration & dosage ; Biliary Atresia ; therapy ; DNA, Viral ; analysis ; Drug Therapy, Combination ; Early Diagnosis ; Epstein-Barr Virus Infections ; diagnosis ; therapy ; Female ; Humans ; Immunosuppressive Agents ; administration & dosage ; adverse effects ; Infant ; Liver Transplantation ; adverse effects ; Lymphoproliferative Disorders ; diagnosis ; etiology ; mortality ; therapy ; Male ; Pediatrics ; Postoperative Complications ; Retrospective Studies ; Survival Rate ; Tacrolimus ; administration & dosage