Publications by authors named "Zhao Da Zhang"

Objectives: To investigate the effect of receptor for advanced glycation end products (RAGE) on cell proliferation and tumor growth in nude mice with pancreatic cancer.

Methods: PANC-1 cells were transfected with shRNA -1, -2, -3 to down-regulate the expression of RAGE. Cholecystokinin octopeptide-8 (CCK-8), real-time PCR and Western blot were performed to test the impact of shRNA on the expressions of mRNAs and proteins of RAGE, matrix metalloproteinase-2 (MMP-2), MMP-9, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), and vascular endothelial growth factor (VEGF).

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Background: Transjugular intrahepatic portosystemic shunt (TIPS) and open splenectomy and esophagogastric devascularization (OSED) are widely used to treat patients with portal hypertension and recurrent variceal bleeding (PHRVB). This study aimed to compare the effectiveness between TIPS and OSED for the treatment of PHRVB.

Methods: The data were retrospectively retrieved from 479 cirrhotic patients (Child-Pugh A or B class) with PHRVB, who had undergone TIPS (TIPS group) or OSED (OSED group) between January 1, 2010 and October 31, 2014.

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Aim: To identify the possible predictors of early complications after the initial intervention in acute necrotizing pancreatitis.

Methods: We collected the medical records of 334 patients with acute necrotizing pancreatitis who received initial intervention in our center. Complications associated with predictors were analyzed.

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Objective: To investigate the effect of CD86 gene modified recipient dendritic cell (DC) on mix cultured donor-derived islet with recipient-derived lymphocyte in vitro.

Methods: DCs were separated from bone marrow of BALB/c mice and identified by flow cytometry. Chemically synthesized CD86 siRNA was transferred into DC.

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Objective: To analysis the effects of Talpha1 on the immune effector molecules in mouse immune system.

Methods: Sixty five BABL/c mice were divided into four groups: CsA group (n=20), Talpha1 group (n= 20), CsA+Talpha1 group (n=20) and control group (n=5). In the 3 experimental groups, 10 mg/kg CsA, 400 microg/ kg Talpha1, 10 mg/kg CsA+400 microg/kg Talpha1 were respectively administrated by intraperitoneal injection daily.

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Background: The early diagnosis of pancreas allograft dysfunction is crucial for the management and long-term survival of transplanted pancreases. We investigated whether intercellular adhesion molecular-1 (ICAM-1), Fas, and Fas ligand (FasL) can be used as novel biomarkers of acute pancreaticoduodenal allograft dysfunction in pigs.

Methods: Forty outbred landraces were randomly divided into three groups.

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Background: Pancreatic fistula (PF) is one of the most common complications after pancreaticoduodenectomy (PD). We described a new method of pancreaticojejunostomy (PJ) developed by combining triple-layer duct-to-mucosa PJ with resection of jejunal serosa, which was named as modified layer-to-layer PJ (MLLPJ). The aim of the present study was to observe whether the new technique would effectively reduce the PF rate in comparison with two-layer duct-to-mucosa PJ (TLPJ).

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Article Synopsis
  • - A meta-analysis evaluated the safety and feasibility of laparoscopic treatment for pancreatic insulinomas (PIs) compared to open surgery using data from several studies.
  • - The analysis included seven studies with a total of 452 patients, showing that laparoscopic surgery resulted in shorter hospital stays without significant differences in operation time or major complications.
  • - Overall, laparoscopic surgery for PIs is deemed a safe and effective option, offering benefits like reduced hospital stays while maintaining comparable postoperative outcomes to open surgery.
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Background: The safety of pancreaticoduodenectomy has improved significantly. However, alkaline reflux gastritis and marginal ulcer are two substantial problems after pancreaticoduodenectomy.

Aims: To identify whether Child reconstruction with a modified Braun enteroenterostomy decreases the incidence of alkaline reflux gastritis and marginal ulcer after pancreaticoduodenectomy better than Roux-en-Y reconstruction.

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Objectives: To compare the postoperative complications and survival of standard pancreatoduodenectomy (SPD) and extended pancreatoduodenectomy (EPD) in patients with resectable adenocarcinoma of the head of the pancreas.

Methods: Between January 1994 and December 2011, 165 patients with biopsy-proven adenocarcinoma of the pancreatic head were treated in West China Hospital, among whom 93 underwent SPD and 72 had EPD. Complications and survival after the surgery were analyzed retrospectively.

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The purpose of this analysis was to evaluate the technological viability, basic safety and consequence of central pancreatectomy (CP) with pancreaticogastrostomy in properly chosen sufferers with noncancerous central pancreatic pathology. This research is centered on the infirmary charts of West China hospital. We recruited 20 individuals from 2007 to 2009 diagnosed with benign cancerous growth of pancreatic body and neck.

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Aim: To evaluate whether antecolic reconstruction for duodenojejunostomy (DJ) can decrease delayed gastric emptying (DGE) rate after pylorus-preserving pancreaticoduodenectomy (PPPD) through literature review and meta-analysis.

Methods: Articles published between January 1991 and April 2012 comparing antecolic and retrocolic reconstruction for DJ after PPPD were retrieved from the databases of MEDLINE (PubMed), EMBASE, OVID and Cochrane Library Central. The primary outcome of interest was DGE.

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Background/aims: The aim of this study is to evaluate the effectiveness of using an internal stent for pancreaticojejunostomy (PJ) on pancreatic fistula (PF) formation, as well as on the overall outcome for patients undergoing pancreatic resections.

Methodology: Articles published until the end of February 2012 comparing internal stenting and no stenting for PI were included. The primary outcome of interest was PF.

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Objective: To investigate the expressions of Bcl-2 and Beclin-1 in pancreatic cancer and analyze the correlation between them.

Methods: The pancreatic tissue samples were collected from each 6 cases of pancreatic cancer, pancreatic exocrine benign tumor, chronic pancreatitis and normal pancreas and marked as group A, group B, group C and group D, respectively. The mRNA expression levels of Bcl-2 and Beclin-1 were detected by real-time fluorescence quantitative PCR and the protein expression levels of Bcl-2 and Beclin-1 were detected through immunohistochemistry.

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Background/aims: The timing for the management of gallstones pancreatitis remains a contentious issue. Various scholars have their own achievement in in regards to this issue.

Methodology: We reviewed our hospital charts from Jan 2007 to December 2010 and made a comparative study about early and delayed LC for mild to moderate gallstone pancreatitis in 80 patients.

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Objective: Patients with liver cirrhosis suffer from hyperinsulinemia, hyperglucagonemia and a certain degree of insulin resistance, and portosystemic shunts may be involved in the etiology. A transjugular intrahepatic portosystemic shunt (TIPS) as a treatment for the complications of portal hypertension leads to hemodynamic changes. The objective of the present study is to evaluate whether TIPS can also affect glycometabolism in cirrhosis patients.

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Objective: To investigate clinical characteristics of fulminant pancreatitis (FP) died at early and late stage, analyze the difference in death causes of FP at these two stage.

Methods: Ninety-two (92) patients with FP were admitted in our center from January 2000 to June 2010, and 55 patients of them died of FP. These dead FP patients were divided into two groups according to the death time: within 7 d (early death group) or after 7 d (late death group).

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Background: The aim of this study was to investigate the pancreas anatomy and surgical procedure for harvesting pancreas for islet isolation while performing pancreatectomy to induce diabetes in rhesus monkeys.

Methods: The necropsy was performed in three cadaveric monkeys. Two monkeys underwent the total pancreatectomy and four underwent partial pancreatectomy (70-75%).

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Article Synopsis
  • The study investigates how specific interleukin cytokines (IL-6, IL-17, IL-23, IL-23R) are involved in the development of acute pancreatitis in rat models.
  • Thirty-six rats were divided into control, model, and intervention groups, with the latter two receiving an injection to induce pancreatitis, and one group receiving treatment simultaneously.
  • Results showed significantly higher levels of IL-6, IL-17, and IL-23 in the model group compared to controls, indicating that IL-23 is an important mediator that facilitates the effects of IL-6 and IL-17 in promoting acute pancreatitis.
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Objectives: This study aimed to address whether hydroxyethyl starch (HES) is beneficial for intra-abdominal pressure (IAP) in severe acute pancreatitis (SAP) in early stages.

Methods: Forty-one patients with SAP were randomized to HES group (n = 20) and the Ringer's lactate (RL) group (n = 21). The groups received 6% HES 130/0.

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Objective: To investigate the effects of NKG2D mAb on the survival of allogeneic transplanted islets nonobese diabetic (NOD) mice, and to find if CD154 mAb has synergistic effects.

Methods: Spontaneous diabetic NOD mice transplanted with allogeneic islets of BALB/c mice were divided into 4 groups. Group A was control group, Group B were treated with anti-NKG2D monoclonal antibody (mAb), Group C were treated with CD154 mAb (MR1), Group D were treated with NKG2D mAb and MR1.

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Background/aims: The aim of this study is to explore the surgical treatment for hepatolithiasis.

Methodology: Data of 1431 consecutive patients who underwent surgical treatment from January 2000 to December 2006 in West China Hospital were collected retrospectively and analyzed. Surgical procedures included T-tube insertion combined intraoperative cholangioscopic removal of intrahepatic stones, hepatectomy, cholangiojejunostomy and liver transplantation.

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Objective: To observe the effects of early goal-directed fluid therapy with hydroxyethyl starch 130/0.4 on intra-abdominal hypertension (IAH), multiple organ dysfunction and fluid balance in severe acute pancreatitis (SAP) patients.

Methods: According to the criteria of selection and exclusion, 120 SAP patients within 72 hours after the symptom occurred from 4 study sites were recruited.

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