Objective To investigate the inhibitory effects of RNA interference (RNAi) expression vector on the expression of survivin in pancreatic cancer cell PANC-1. Methods The protein and mRNA expressions of survivin were examined with immunofluorescence and RT-PCR. The survivin gene was cloned into the T-vector and sequenced. The RNAi expression vectors targeting survivin, named si-svv-1 and si-svv-2 respectively according to whether they harbored a mutation or no mutation, were constructed and transfected into PANC-1 cells with liposome. The expression of survivin mRNA was detected with RT-PCR. Apoptosis of PANC-1 cells was analyzed with DNA ladder and FACS. Results There was a high degree expression of survivin in PANC-1 cells. The expression of survivin was not inhibited by RNAi expression vectors si-svv-1, but inhibited about (72.43±8.04)% by si-svv-2 and the apoptosis rate of PANC-1 cells increased to （12.36±1.44）% after 72 h. Conclusion The RNAi expression vector can effectively inhibit the expression of survivin in pancreatic cancer cell PANC-1 cells and induce the apoptosis in PANC-1 cells.
ObjectiveTo explore the correlation of serum lipocalin-2 (LCN2) with inflammation and the predictive value of LCN2 for detecting acute kidney injury (AKI) in acute pancreatitis (AP).MethodsNighty-one patients with AP, who were admitted to Bazhong Municipal Hospital of Traditional Chinese Medicine between June 2016 and June 2018, were enrolled in the present study. Clinical paramaters were analyzed between patients with AKI (n=29) and patients without AKI (n=62). The correlation of serum LCN2 with inflammation was assessed with Pearson’s correlation analysis. The area under the receiver operating characteristic curve (ROC AUC) for serum LCN2 predicting AKI in AP patients was assessed.ResultsCompared with the patients without AKI, the patients with AKI showed increased serum levels of C-reactive protein [(64.8±10.5) vs. (148.3±21.6) mg/L], procalcitonin [(3.5±2.3) vs. (4.8±3.9) μg/L], urea nitrogen [(5.5±2.1) vs. (6.6±2.8) mmol/L], creatinine [(80.3±28.1) vs. (107.3±30.8) μmol/L], interleukin-6 [(10.1±3.7) vs. (16.2±4.6) pg/mL], and LCN2 [(155.0±37.6) vs. (394.8±53.1) mg/mL], as well as decreased level of calcium [(2.6±1.3) vs. (2.0±1.0) mmol/L], the differences were all statistically significant (P<0.05). The serum level of LCN2 was correlated with C-reactive protein (r=0.694, P<0.05), interleukin-6 (r=0.762, P<0.05), and procalcitonin (r=0.555, P<0.05) in patients with AP. The ROC AUC of LCN2 for predicting AKI was 0.844 (P<0.05) , with a sensitivity of 81.3% and a specificity of 81.4% when the cut-off value was 210.2 ng/mL.ConclusionsSerum LCN2 concentration is elevated in patients with AKI. In patients with AP, serum LCN2 level is positively correlated with C-reactive protein, interleukin-6, and procalcitonin. It can be regarded as a reliable indicator for predicting AKI.
Objective To evaluate the effect of early clinical interference strategies on preventing the conversion of acute pancreatitis to the severe form and aggravation of severe acute pancreatitis (SAP). Methods The patients with acute pancreatitis admitted to this hospital were divided into two therapeutic phases by different therapeutic methods from January 2001 to December 2008. Patients in the first phase (from January 2001 to December 2004) were treated by the routine management, and the second phase (from January 2005 to December 2008) by the routine management combined with early clinical interference strategies. Then, the ratio of conversion from acute pancreatitis to SAP and prognosis of SAP between two phases were compared. Results Compared with the first phase, the rate of aggravation of acute pancreatitis was significantly decreased in the second phase (4.48% vs. 21.18%), the average healing time of SAP, the incidences of systemic and local complications and the mortality of pancreatitis were reduced (P＜0.05). When early clinical interference strategies were performed, some adverse reaction and complications occurred in 35 cases, but without severe consequence. Conclusion Early clinical interference strategies may serve as a beneficial strategy on preventing the progression of mild acute pancreatitis to the severe form or halting the aggravation of acute pancreatitis.
ObjectiveTo investigate the relation between disulfidptosis-related genes (DRGs) and prognosis or immunotherapy response of patients with pancreatic cancer (PC). MethodsThe transcriptome data, somatic mutation data, and corresponding clinical information of the patients with PC in The Cancer Genome Atlas (TCGA) were downloaded. The DRGs mutated in the PC were screened out from the 15 known DRGs. The DRGs subtypes were identified by consensus clustering algorithm, and then the relation between the identified DRGs subtypes and the prognosis of patients with PC, immune cell infiltration or functional enrichment pathway was analyzed. Further, a risk score was calculated according to the DRGs gene expression level, and the patients were categorized into high-risk and low-risk groups based on the mean value of the risk score. The risk score and overall survival of the patients with high-risk and low-risk were compared. Finally, the relation between the risk score and (or) tumor mutation burden (TMB) and the prognosis of patients with PC was assessed. ResultsThe transcriptome data and corresponding clinical information of the 177 patients with PC were downloaded from TCGA, including 161 patients with somatic mutation data. A total of 10 mutated DRGs were screened out. Two DRGs subtypes were identified, namely subtype A and subtype B. The overall survival of PC patients with subtype A was better than that of patients with subtype B (χ2=8.316, P=0.003). The abundance of immune cell infiltration in the PC patients with subtype A was higher and mainly enriched in the metabolic and conduction related pathways as compaired with the patients with subtype B. The mean risk score of 177 patients with PC was 1.921, including 157 cases in the high-risk group and 20 cases in the low-risk group. The risk score of patients with subtype B was higher than that of patients with subtype A (t=14.031, P<0.001). The overall survival of the low-risk group was better than that of the high-risk group (χ2=17.058, P<0.001), and the TMB value of the PC patients with high-risk was higher than that of the PC patients with low-risk (t=5.642, P=0.014). The mean TMB of 161 patients with somatic mutation data was 2.767, including 128 cases in the high-TMB group and 33 cases in the low-TMB group. The overall survival of patients in the high-TMB group was worse than that of patients in the low-TMB group (χ2=7.425, P=0.006). ConclusionDRGs are closely related to the prognosis and immunotherapy response of patients with PC, and targeted treatment of DRGs might potentially provide a new idea for the diagnosis and treatment of PC.
Ａ ｒｅｖｉｅｗ ｏｆ ｐａｔｉｅｎｔｓ ｗｉｔｈ ａｃｕｔｅ ｐａｎｃｒｅａｔｉｔｉｓ ｔｒｅａｔｅｄ ｉｎ ｔｈｉｓ ｈｏｓｐｉｔａｌ ｉｎ ｒｅｃｅｎｔ １０ ｙｅａｒｓ ｗａｓ ｍａｄｅ．Ｔｏ ｄｅｔｅｒｍｉｎｅ ｔｈｅ ｒｉｓｋ ｆａｃｔｏｒｓ ｏｆ ｓｅｐｔｉｃ ｎｅｃｒｏｓｉｓ ｉｎ ａｎｄ ａｒｏｕｎｄ ｔｈｅ ｐａｎｃｒｅａｓ，３２ ｃａｓｅｓ ｗｉｔｈ ｓｅｐｔｉｃ ｎｅｃｒｏｓｉｓ ｗｈｉｃｈ ｗｅｒｅ ｐｒｏｖｅｄ ｉｎ ｓｕｒｇｉｃａｌ ｏｐｅｒａｔｉｏｎ ａｎｄ ４４ ｃａｓｅｓ ｗｉｔｈｏｕｔ ｓｅｐｔｉｃ ｎｅｃｒｏｓｉｓ（ａｓ ｃｏｎｔｒｏｌ）ｗｅｒｅ ｉｎｃｌｕｄｅｄ ｉｎ ｔｈｉｓ ｓｔｕｄｙ．Ｔｈｅ ｐｏｓｓｉｂｌｅ ｆａｃｔｏｒｓ ｗｅｒｅ ｃｏｍｐａｒａｔｉｖｅｌｙ ａｎａｌｙｓｅｄ．Ｔｈｅ ｒｅｓｕｌｔｓ ｓｈｏｗｅｄ ｔｈａｔ ｓｅｐｔｉｃ ｎｅｃｒｏｓｉｓ ｉｎ ａｎｄ ａｒｏｕｎｄ ｔｈｅ ｐａｎｃｒｅａｓ ｏｂｖｉｏｕｓｌｙ ｒｅｌａｔｅｄ ｔｏ ｔｈｅ ｄｉａｇｎｏｓｔｉｃ ｏｒ ｔｈｅｒａｐｅｕｔｉｃ ｐｕｎｃｔｕｒｅｓ，ｅａｒｌｙ ｓｕｒｇｉｃａｌ ｄｒａｉｎａｇｅ ａｎｄ ｐａｒａｌｙｔｉｃ ｉｌｅｕｓ（ＯＲ ３０２－５４８，Ｐ＜００５)，ｂｕｔ ｔｈｅｒｅ ｗｅｒｅ ｎｏ ａｓｓｏｃｉａｔｉｏｎｓ ｗｉｔｈ ａｇｅ，ｅｔｉｏｌｏｇｙ，ｓｈｏｃｋ，ｒｅｓｐｉｒａｔｏｒｙ ｆａｉｌｕｒｅ ａｎｄ ｔｏｔａｌ ｐａｒｅｎｔｅｒａｌ ｎｕｔｒｉｔｉｏｎ（ＯＲ ０７８－１２６，Ｐ＞００５）．Ｔｈｅ ａｕｔｈｅｒｓ ｓｕｇｇｅｓｔ ｔｈａｔ ｅｉｔｈｅｒ ｐａｎｃｒｅａｔｉｃ，ｐｅｒｉｐａｎｃｒｅａｔｉｃ ｐｕｎｃｔｕｒｅ ｏｒ ｅａｒｌｙ ｓｕｒｇｉｃａｌ ｄｒａｉｎａｇｅ ｓｈｏｕｌｄ ｂｅ ｌｉｍｉｔｅｄ ａｎｄ ａｎｙ ｍｅｄｉｃａｔｉｏｎ ｗｈｉｃｈ ｍａｋｅｓ ｐａｒａｌｙｔｉｃ ｉｌｅｕｓ ｄｅｔｅｒｉｏｒａｔｅｄ ｓｕｃｈ ａｓ ａｔｒｏｐｉｎｅ ｓｈｏｕｌｄ ｂｅ ａｖｏｉｄｅｄ ｉｎ ｔｈｅ ｔｒｅａｔｍｅｎｔ ｏｆ ａｃｕｔｅ ｐａｎｃｒｅａｔｉｔｉｓ．
ObjectiveTo summarize the application of magnetic resonance imaging (MRI) in the evaluation of pancreatic exocrine function.MethodIn this paper, we reviewed and summarized the related literatures about the application of MRI in the field of pancreatic exocrine function evaluation in recent years.ResultsA variety of MRI techniques could be used to detect the pancreatic exocrine function. In addition to conventional MRI techniques, there were also MRI stimulated by pancreatic secretions, cine (dynamic) cholangiopancreatography based on space selective reverse recovery pulse, and so on.ConclusionThe new MRI techniques have potential for semi-quantitative and quantitative evaluation of pancreatic exocrine function.
Objective To study the influence factors of surgical site infection (SSI) after hepatobiliary and pancreatic surgery. Methods Fifty patients suffered from SSI after hepatobiliary and pancreatic surgery who treated in Feng,nan District Hospital of Tangshan City from April 2010 and April 2015 were retrospectively collected as observation group, and 102 patients who didn’t suffered from SSI after hepatobiliary and pancreatic surgery at the same time period were retrospectively collected as control group. Then logistic regression was performed to explore the influence factors of SSI. Results Results of univariate analysis showed that, the ratios of patients older than 60 years, combined with cardiovascular and cerebrovascular diseases, had abdominal surgery history, had smoking history, suffered from the increased level of preoperative blood glucose , suffered from preoperative infection, operative time was longer than 180 minutes, American Societyof Anesthesiologists (ASA) score were 3-5, indwelled drainage tube, without dressing changes within 48 hours after surgery, and new injury severity score (NISS) were 2-3 were higher in observation group (P＜0.05). Results of logistic regression analysis showed that, patients had history of abdominal surgery (OR=1.92), without dressing changes within 48 hours after surgery (OR=2.07), and NISS were 2-3 (OR=2.27) had higher incidence of SSI (P＜0.05). Conclusion We should pay more attention on the patient with abdominal surgery history and with NISS of 2-3, and give dressing changes within 48 hours after surgery, to reduce the incidence of SSI.
ObjectiveTo systematically evaluate the potential value of C-reactive protein to albumin ratio (CAR) as an indicator of prognosis and survival in patients with pancreatic cancer. MethodsThe literatures were searched comprehensively in the PubMed, Embase, Web of Science, Cochrane Library, CBM, Wanfang, CNKI, and CQVIP databases from the establishment of the databases to May 20, 2021. The combined hazard ratio (HR) and 95% confidence interval (95%CI) were used to evaluate the correlation between the CAR and the overall survival (OS), progression-free survival (PFS), or disease-free survival (DFS) in the patients with pancreatic cancer. The Newcastle-Ottawa scale (NOS) was used to evaluate the quality of the non-randomized controlled studies, and the Stata SE 15.0 software was used for meta-analysis. ResultsA total of 2 985 patients with pancreatic cancer were included in this meta-analysis of 15 studies. The results of meta-analysis showed that the higher CAR value, the shorter OS [effect size (ES)=0.60, 95%CI (0.50, 0.69), Z=12.04, P<0.001], DFS [ES=0.63, 95%CI (0.47, 0.78), Z=3.61, P<0.001], and PFS [ES=0.41, 95%CI (0.19, 0.63), Z=7.91, P<0.001] in the patients with pancreatic cancer. The results of subgroup analysis of OS according to different countries, sample size, mean age, follow-up time, CAR cut-off value, and NOS score showed that the higher CAR value was related to the shorter OS (P<0.05). The result of linear regression analysis showed that there was no correlation between the CAR cut-off value and lnHR of OS (r2=0.947, P=0.455). Conclusion From results of this study, CAR is closely related to OS of patients, and it is expected to be used as a new reference index for monitoring and judging prognosis of patients with pancreatic cancer.
Objective To summarize the CT, MRI, and positron emission computed tomography (PET) imaging findings of hematologic malignancies of the pancreas, so as to improve the capacity of its diagnosis. Methods After searching articles concerning radiological research about hematologic malignancies of the pancreas, summarizing its imaging characteristics. Results Hematologic malignancies of the pancreas include pancreatic lymphoma, pancreatic multiple myeloma, myeloid sarcoma, posttransplantation lymphoproliferative disorder, and giant lymph node hyperplasia. ① Pancreatic lymphoma: imaging features of pancreatic lymphoma are segmental or diffuse homogeneous enlargement of the pancreas, diameter of mass >5 cm, adenopathy below the level of renal veins, and lack of pancreatic duct dilation. Blurred margins of pancreas by lymphadenopathy is highly suggestive of lymphoma. ② Pancreatic multiple myeloma: pancreatic multiple myeloma are hyperintense on both T1- and T2-weighted images. ③ Pancreatic granulocytic sarcoma: pancreatic granulocytic sarcoma present as homogeneous hypoenhancing mass on CT, usually without pancreatic duct dilation. On MRI, the lesions are isointense and mildly hyperintense on T1- and T2-weighted images respectively. ④ Posttransplantation lymphoproliferative disorder: diameter of leison of posttransplantation lymphoproliferative disorder usually is >5 cm with poor enhancement. Lesions are mildly hyperintense on T2-weighted images and extremely hypermetabolic on PET images. ⑤ Giant lymph node hyperplasia: it mainly appear as solitary noninvasive masses. Punctate calcification and surrounding supply vessels are observed in hyaline vascular type. Plasma cell type demonstrate unapparent enhancement and less calcification. Conclusions Hematologic malignancies of the pancreas manifest different imaging features on CT, MRI, and PET. Familiarity with such characteristics helps to early recognize diseases and determine next-step measures.