LncRNA NEAT-2 regulate the function of endothelial progenitor cells in experimental Sepsis model.

Background: Sepsis is a life-threatening disease with a limited effectiveness and the potential mechanism remains unclear. LncRNA NEAT-2 is reported to be involved in the regulation of cardiovascular disease. This study aimed to investigate the function of NEAT-2 in sepsis.

Analysis of risk factors and prevention strategies for functional delayed gastric emptying in 1243 patients with distal gastric cancer.

Background: Analysis of the risk factors associated with functional delayed gastric emptying after distal gastric cancer surgery to provide a basis for further reduction of the incidence of this complication.

Methods: Total of 1382 patients with distal gastric cancer from January 2016 to October 2018 were enrolled. Correlation analysis was performed in 53 patients with FDGE by logistic regression.

Development and validation of a nomogram for preoperative prediction of lymph node metastasis in early gastric cancer.

Background: The status of lymph nodes in early gastric cancer is critical to make further clinical treatment decision, but the prediction of lymph node metastasis remains difficult before operation. This study aimed to develop a nomogram that contained preoperative factors to predict lymph node metastasis in early gastric cancer patients.

Methods: This study analyzed the clinicopathologic features of 823 early gastric cancer patients who underwent gastrectomy retrospectively, among which 596 patients were recruited in the training cohort and 227 patients in the independent validation cohort.

Fiber-modified hexon-chimeric oncolytic adenovirus targeting cancer associated fibroblasts inhibits tumor growth in gastric carcinoma.

Objective: To evaluate the effects of fiber-modified hexon-chimeric recombinant oncolytic adenovirus targeting cancer associated fibroblasts (CAFs) on the gastric CAFs and the transplantation tumor mice model of gastric carcinoma (GC).

Results: Compared with BJ cells and GPFs, the reproduction and infectivity of P9, P9-4C or GP adenoviruses were markedly higher in gastric CAFs. In addition, P9, P9-4C or GP had a significantly relatively more killing effect on gastric CAFs compared with GPFs, and have less oncolytic effect in BJ cells.

Caveolin-1 is a modulator of fibroblast activation and a potential biomarker for gastric cancer.

Stromal fibroblasts play an important role in chronic cancer-related inflammation and the development as well as progression of malignant diseases. However, the difference and relationship between inflammation-associated fibroblasts (IAFs) and cancer-associated fibroblasts (CAFs) are poorly understood. In this study, gastric cancer-associated fibroblasts (GCAFs) and their corresponding inflammation-associated fibroblasts (GIAFs) were isolated from gastric cancer (GC) with chronic gastritis and cultured in vitro.

Experimental study on sustained-release 5-Fluorouracil implantation in canine peritoneum and para-aortic abdominalis.

Objective: To observe local and systemic toxicity after sustained-release 5-fluorouracil (5-Fu) implantation in canine peritoneum and para-aortic abdominalis and the changes of drug concentration in the local implanted tissue with time.

Methods: 300 mg sustained-release 5-Fu was implanted into canine peritoneum and para-aorta abdominalis. Samples were taken 3, 5, 7 and 10 days after implantation for assessment of changes and systemic reactions.

[Isolation, culture and identification of rabbit bone marrow-derived vascular endothelial progenitor cells].

The aim of study was to set up a suitable method of isolation, culture and identification of endothelial progenitor cells (EPC) derived from rabbit bone marrow. Density gradient centrifugation was used to isolate mononuclear cells from bone marrow, the isolated mononuclear cells were cultured with specific culture medium for EPCs. EPCs were identified by cellular morphologic observation, immunohistochemistry testing, flow cytometry and the function test of taking up Dil-ac-LDL and FITC-UEA-1.

[Construction of a RU486 inducible recombinant adenoviral vector carrying murine interleukin-12 gene and experimental treatment of colonic carcinoma].

Objective: To construct a RU486 inducible recombinant adenovirus of murine IL-12 protein and study its effect and safety on colonic cancer.

Methods: The replication-defective recombinant adenovirus were produced after cotransfection of shutter vector pDC-RUmIL-12 and adenovirus DNA helper plasmid pBHGloxDeltaE1, 3Cre into HEK293 cells. The recombined adenovirus was purified by CsCl density gradient centrifugation and its titer was determined by end point dilution assay.

[Predictors of mortality in critically multiple trauma patients after damage control surgery].

Objective: To investigate the efficiency of damage control surgery (DCS) and predictors of mortality in critically multiple trauma patients.

Methods: From May 1998 to February 2007, DCS were carried out in 27 patients with critically multiple trauma. Of the patients 15 cases survived (survival group) and 12 cases died (dead group).

The change and effect of endothelial progenitor cells in pig with multiple organ dysfunction syndromes.

Introduction: The dysfunction and decrease of endothelial progenitor cells (EPCs) may play a very important role in the initiation of organ dysfunction caused by trauma or severe sepsis. We aim to measure the number and function of EPCs in the progression of multiple organ dysfunction syndromes (MODS) caused by severe sepsis, which may help to understand the pathogenesis of MODS by the changing of EPCs.

Methods: A total of 40 pigs were randomly divided into two groups, which were subjected to hemorrhagic shock, resuscitation and endotoxemia (experimental group, n = 20) or acted as a control (control group, n = 20).

A gutless adenoviral vector expressing full-length anti-Her2 antibody.

1. Therapeutic monoclonal antibodies are increasingly being used in clinical cancer treatment, but their complex technology and high cost limit their use. Helper-dependent (HD) adenoviruses are among the most efficient and safe gene therapy vectors capable of mediating long-term expression.

[Construction and expression of RU486-inducible eukaryotic vector carrying red fluorescent protein].

Objective: To construct an inducible eukaryotic vector carrying red fluorescent protein (DsRed) and evaluate the regulation of DsRed gene expression in vitro.

Methods: The vector pRS17-RUDsRed containing DsRed gene, promoter and RU486-inducible system was constructed using molecular biological methods. To minimize potential interference, the two transcriptional elements were spaced with a 1.

[Effect of free hemoglobin on hemorrhagic shock in pigs: TNF-alpha, IL-6 expressions in serum and rates of MODS after the blood transfusion].

This study was aimed to investigate the expressions of tumor necrosis factor-alpha (TNF-alpha), Interleukin-6 (IL-6) in serum and the incidence of multiple organ dysfunction syndrome (MODS) in pigs with hemorrhagic shock after the blood transfusion simultaneously combined with different doses of free hemoglobin (FHb) so as to provide guidance of banked blood with high concentration of FHb during war injury through understanding effect of FHb on the animals. The different doses of FHb were given intravenously during the recovery of pig from shock, the vital signs and functional changes of vital organs were monitored and the incidence of MODS was determined, as well as the serum specimens were collected and the TNF-alpha, IL-6 levels in serum were detected by ELISA. The results showed that there were statistical differences of serum levels of TNF-alpha and IL-6 in pigs after FHb 10 mg/kg infusion, as compared to shock control group.

Clinical management of abdominal trauma.

Objective: To improve the prognosis of patients with abdominal trauma.

Methods: Between January 1993 and December 2005, 415 patients were enrolled in this research. The patients consisted of 347 males and 68 females with mean age of 36 years (ranging from 3-82 years).

[Effect of replication- competent adenovirus-mediated interleukin- 12 gene to chemotherapeutic sensitivity on gastric cancer cell].

Objective: To investigate the effect of replication-competent adenovirus-mediated interleukin-12 gene to chemotherapeutic sensitivity on gastric cancer cell.

Methods: Replication-competent adenovirus and replication-competent adenovirus- mediated interleukin- 12 gene was constructed and expanded separately. The mortality of gastric cancer cell caused by the CNHK200- mIL- 12, Onyx- 015 in combination with different dosages of chemotherapeutic agents were evaluated by MTT assay at the same viral titer with a series of different dosages of chemotherapeutic agent,or at a series of different viral titers with the same dosage of chemotherapeutic agent.

[Efficacy of intraoperative hypotonic peritoneal chemo-hyperthermia combined with early postoperative intraperitoneal chemotherapy on gastric cancer].

Background & Objective: Abdominal recurrence from exfoliated cancer cells contributes a lot to treatment failure of advanced gastric cancer. Intraperitoneal chemotherapy, which has been proved effective in eliminating exfoliated cancer cells in abdominal cavity, is a hot topic on treatment of gastric cancer. This study was to explore application of combined therapy of intraoperative hypotonic peritoneal chemo-hyperthermia and early postoperative intraperitoneal chemotherapy to gastric cancer.