1.Clinical analysis of 39 cases of pancreatic trauma
International Journal of Surgery 2013;(2):82-85
Objective To explore the key points of diagnosis,treatment and the reasonable surgical methods in 39 cases of pancreas trauma.Methods A retrospective review and analysis the cause and classification of injury,surgical methods of 39 cases of pancreatic trauma in the Department of General Surgery of Affiliated Provinical Hospital of Anhui Medical University during Jan.1990 to Dec.2011.Results In the 39 patients who underwent surgery,38 patients were cured,1 dead duing to craniocerebral injuries,3 patients with complications of pancreatic leakage cured after adequate drainage.Two patients with pancreatic pseudocyst pancreatic pseudocystcyst cured after pancreatic pseudocyst jejunum anastomosis.One patients with traumatic pancreatitis cured after conservative treatment.Conclusions Blunt injury is the most common cause of pancreas trauma.Imaging examination has high value in the early diagnosis of pancreas trauma.The reasonable surgical methods and careful examination during operation can improve the cure rate and reduce the mortality and incidence of complications of pancreatic trauma.If the patient's condition allowed,endoscopy not only contributes to the diagnosis of pancreatic trauma,but is an effective method for treatment of it.
2.The application of small molecule bioactive probes in the identification of cellular targets.
Acta Pharmaceutica Sinica 2012;47(3):299-306
Identification of the cellular targets of bioactive compounds is a major challenge and a key issue in chemical biology and drug discovery. As an important technology in functional proteomics, small molecule probes play a pivotal role in the identification of cellular targets of bioactive compounds. This review is intended to introduce the application principles and structural design philosophy of chemical probes for the purpose of mechanistic study. Recent cases of successful application were also discussed to further demonstrate the principles and significance ofbioactive small molecule-based probes.
3.Progress in pancreatic cancer neural invasion
International Journal of Surgery 2011;38(6):393-395
Neural invasion is an important invasion pathway of pancreatic cancer.New research shows that neural invasion of pancreatic cancer related genes in the sequential role effect,through the cell signal transduction,regulation of specific growth factors,adhesion molecules,matrix metallopmteinase and other related systems,then changed in the generation,resulting in the cancer cells invasion of the nerve tissue eventually.We reviewed the progress of neural invasion of pancreatic cancer in this paper.
4.Surgical treatment effects in cancer of the cardia and esophagogastric junction
Yumin ZHOU ; Jiong PAN ; Yuwei SHENG ; Hao LIU ; Ziping FAN
China Oncology 2006;0(08):-
0.05 ), the postoperative complication and mortality rate of PG group were 13.7% and 6.8%, of TG group was all 6%.Conclusions:Proximal and total gastrectomy treatment does not significantly influence the prognosis of patients with cardia and esophgogastric junction cancer in progressive stage.
6.Relationship between plasma homocysteine level and stroke
Jiong ZHOU ; Songzhao ZHANG ; Yun ZHANG ; Zhong CHEN ; Meiping DING
Chinese Journal of Tissue Engineering Research 2005;9(33):181-183
BACKGROUND: Hyperhomocysteinemia has been suggested to be a possible independent risk factor for stroke.OBJECTIVE: To explore the relationship between hyperhomocysteinemia and cerebral infarction and hemorrhage, and analyze the factors that affect plasma homocysteine level.DESIGN: Case-controlled clinical trial.SETTING: Department of Neurology, Second Hospital Affiliated to Medical College of Zhejiang University.PARTICIPANTS: Totally 57 patients including 21 with cerebral hemorthage and 36 with brain infarction were treated in the Department of Neurology, Second Hospital Affiliated to Medical College of Zhejiang University Between January and November 2003. Twenty-eight healthy volunteers were also recruited from the subjects coming for routine physical examination.METHODS: Two milliliters of fasting venous blood was collected from all subjects in the morning for detecting the contents of plasma homocysteine,vitamin B12, folic acid, creatinine and so on. All patients were scored for clinical neurological impairment, with the hematoma volume calculated in patients with brain hemorrhage determined on the basis of CT scanning.acid, vitamin B12, clinical neurological impairment score and hematoma volume.RESULTS: Valid results were obtained from all the 57 stroke patients and in male and female patients of both cerebral infarction group and cerebral hemorrhage group than that of the subjects of the same gender in the control group [(25.2±21.4), (18.3±10.9), (11.5±2.9) μmol/L for male subjects;(22.8±18.9), (14.7±7.4), (10.8±2.6) μmol/L for female subjects, P< 0.05-0.01].The level of homocysteine was similar between cerebral infarction group and cerebral hemorrhage group, homocysteic acid level showed obvious inverse correlation with folic acid level (r=-0.442, -0.531, P < 0.05), but without relation to vitamin B12 level (r=-0.086, -0.111, P > 0.05). Homocysteine level was not obviously correlated to the neurological impairment scores in cerebral infarction group (r=-0.139, P > 0.05), nor was it related to the scores or hematoma volume in cerebral hemorrhage group (r=0.225,0.425, P > 0.05).CONCLUSION: Hyperhomocysteinemia is risk factor for cerebral infarction and hemorrhage. Plasma homocysteine level is inversely correlated with folic acid level, but not obviously related to vitamin B12, clinical neurologicla impairment score or hematoma volume.
7.Role of decoy receptor 3 and its tumor necrosis factor ligand-related molecular 1A in the treatment of pancreatic cancer implantation with CD 4 and CD 8 double negative T cells in nude mice
Jiong CHEN ; Pibo HU ; Gaohua WU ; Haibo ZHOU
Chinese Journal of Pancreatology 2021;21(1):20-24
Objective:To explore the role of decoy receptor 3(DcR3) and its ligand tumor necrosis factor ligand-related molecule 1A(TL1A) in the treatment of pancreatic cancer implanted tumors in nude mice with CD 4 and CD 8 double negative T cells (DNT cells). Methods:DNT cells derived from peripheral blood of healthy volunteers were cultured in vitro by antibody adsorption method. A nude mouse model of pancreatic cancer implantation was established and randomly divided into DNT cell treatment group (tail vein injection of 1×10 8/ml DNT cell suspension), gemcitabine treatment group (tail vein injection of 50 mg/kg gemcitabine) and control group (no treatment). The tumor volume and weight in each group were measured after 50 days. Western blotting and qRT-PCR were used to detect the protein and mRNA expression of DcR3 and TL1A in nude mice implanted tumor tissues in each group, and TUNEL method was used to detect the apoptosis rate of nude mice implanted tumors in each group. Results:The tumor volume of the DNT cell treatment group, gemcitabine treatment group, and control group was (670.28±124.54), (604.60±179.16), (1738.80±391.39)mm 3, and the tumor weight was (225.60±8.12), (222.69±8.73), (265.07±10.76)mg, and the volume and weight of implanted tumors in the DNT cell treatment group and gemcitabine treatment group were significantly lower than those in the control group, and the differences were statistically significant (all P values <0.001). The expression levels of DcR3 protein and mRNA in the DNT cell treatment group and gemcitabine treatment group (0.56±0.02, 3.74±0.19; 0.57±0.03, 3.40±0.39) were significantly higher than those in the control group (0.39±0.04, 0.92±0.05), while the expression levels of TL1A protein and mRNA (0.41±0.03, 0.83±0.11; 0.40±0.05, 0.79±0.08) were significantly lower than those of the control group (0.81±0.05, 1.70±0.36), and the differences were statistically significant (all P values <0.001). The apoptotic rate of implanted tumors in the DNT cell treatment group was (53.2±11.2)%, and that in the gemcitabine treatment group was (56.2±8.6)%, which were significantly higher than the control group (10.3±3.2)%, and the differences were statistically significant ( all P values <0.001). Conclusions:DNT cells had a significant inhibitory effect on the growth of pancreatic cancer implanted tumors in nude mice. DcR3-TL1A may be involved in the anti-tumor mechanism of DNT cells.
8.Quantitative measurement of fatty liver by spectral imaging on gemstone CT:an experimental study on mice model
Tingting SHI ; Jian HE ; Jiong SHI ; Shan JIANG ; Bin XUE ; Zhengyang ZHOU ; Bin ZHU
Journal of Practical Radiology 2014;(12):2079-2083
Objective To investigate the feasibility of quantitative measurement of fat concentration by CT spectral imaging in a mice model of fatty liver.Methods Twenty-four mice with different degrees of fatty liver underwent CT spectral imaging.CT values of liver parenchyma under mixed X-ray energy and 65 keV,fat concentration based on various basic material pairs (fat/water,fat/io-dine,fat/calcium)and spectral curves were obtained.Liver specimens were obtained to measure the concentration of triglyceride , and HE staining was performed.Correlations between various CT indexes and triglyceride concentration were analyzed.Results Correlation between fat concentration (fat/water pair)and triglyceride (r =0.91 5 )was better than that between CT values on 65 keV and triglyceride (r=-0.858),as well as polychromatic CT values (r=-0.81 6).All the P values were<0.001.Correlations between fat concentrations based on fat/iodine or fat/calcium pairs and triglyceride were relatively low (r=-0.726,-0.660).CT indexes on 1.25 mm slice thickness performed better than those on 2.5 mm.With fatty liver degree increased,the shape of spectral curve changed gradually.Conclusion Liver fat concentration can be measured by CT spectral imaging noninvasively,accurately and quantitatively in a mice model of fatty liver.
9.Research progress of proteomics technology in diagnosis of pancreatic cancer
Wen WU ; Jiong CHEN ; Yunlian XIA ; Hangcheng ZHOU ; Yin LU ; Renbao YANG ; Longjiang CHEN ; Liwei HU
International Journal of Surgery 2012;39(6):407-411
Pancreatic cancer is a commonly malignant gastrointestinal tumor with an significantly increasing incidence.Those patients without nonspecific symptoms at early stage had mostly lost the opportunity of surgical therapy when pancreatic cancer was detected at advanced stage,and its prognosis is poor.Therefore,it is rather important to improve the early diagnosis of pancreatic cancer.In recent years,proteomics is developing rapidly.Proteomics technologies have been widely used in clinical research.Using proteomics technology screening pancreatic cancer tumor markers becomes the research focus,thus we try to find a kind of or a group of pancreatic tumor markers,so as to improve the diagnosis of pancreatic cancer.
10.Serous cystadenoma of the pancreas: clinicopathologic analysis in 21 cases
Hangcheng ZHOU ; Jiong CHEN ; Haiyan WENG ; Wen WU ; Liwei HU ; Renbao YANG ; Longjiang CHEN
Chinese Journal of Pancreatology 2012;(6):378-380
Objective To investigate the clinicopathological features of patients with serous cystadenomas of the pancreas (SCAP).Methods The clinical and pathological features of 21 cases of SCAP were retrospectively analyzed.Results The mean age of the 21 cases was 61 years old,male:female ratio was 1∶ 1.33,18 (85.7%) patients presented with abdominal pain,bloating,abdominal mass,weight loss,and 3 (14.3%) patients were found during check-up.The tumors were located in pancreatic head in 9 patients,in pancreatic body and tail in 12 patients.The clinical manifestations were pancreatic cystic lesions.All patients underwent surgery.Histologically,the cyst wall was complete and lined with flat or cuboidal epithelium,cytoplasm was translucent,nucleus were round or oval with similar size,no significant nuclear atypia and mitotic activity was found.The pathologic diagnosis was micro-cyst type in 15 cases,single-cyst type in 6 cases.Immunohistochemistry method showed EMA,CK7,CK19 positive and PAS staining positive.The positive expression rate of Ki 67 was between 1% and 3%.After follow-up of 19 cases ranging from 3 months to 7 years,no recurrence and metastasis was detected.Conclusions SCAP is seen predominantly in elderly female patients with significant symptoms.A majority of tumors are located in the pancreatic body and tail.SCAP presents with characteristics of pancreatic ductal epithelial,and the prognosis is excellent.