Objective To study the expression of p16 and Rb gene in primary gallbladder carcinoma (PGC). MethodsFiftysix cases of PGC and 26 of gallbladder benign lesions were observed by immunohistochemistry (SP). ResultsThe positive rates of p16 and Rb protein in PGC were 46.3% and 71.4% respectively. No association of Rb expression with histological grade, histological type, invasion, metastasis and prognosis was found. There were close correlation between p16 expression and invasion, metastasis as well as prognosis. The inverse correlation of p16 and Rb gene expression in PGC was confirmed. Conclusion The loss of p16 or Rb gene protein is an important molecular event in PGC,and closely related to the block in the negative regulatory pathway of all cell cycle. The detection of p16 protein may be useful in evaluating biological characteristics and prognosis in PGC.
ObjectiveTo investigate and compare the advantages and disadvantages of laparoscopic cholecystolithotomy and laparoscopic cholecystectomy for patients with gallbladder stone. MethodsThe eligible patients with gallbladder stones hospitalized in our department between January 2007 and December 2011 were included, and all of them received either laparoscopic cholecystolithotomy (observation group) or laparoscopic cholecystectomy (control group) minimally-invasive surgery. The operation time, bleeding volume, enterokinesia recovery time, hospital stay, post-operative complication and follow-up results were compared between the two groups. ResultsA total of 148 patients were included, with 68 patients in the observation group and 80 patients in the control group. In this cohort, the success rate of surgery for the observation group and the control group was 100.0% (68/68) and 98.8% (79/80), respectively; and the success rate of complete stone removal was 100% for both two groups. B-ultrasound examination after 2 weeks of treatment showed that gallbladder wall was normal and gallbladder contraction rate was more than 30% for all patients with laparoscopic cholecystolithotomy. The operation time was (49.6±5.2) minutes for the observation group and (50.5±6.2) minutes for the control group, and bleeding volume was (9.5±1.4) mL for the observation group and (50.2±8.1) mL for the control group; the difference in bleeding volume was significant between the two groups (P<0.05). The difference in enterokinesia recovery time[(33.9±2.2) and (34.4±2.6) minutes] or hospital stay[(3.4±1.0) and (3.6±1.2) days] between the observation group and the control group was not significant (both P >0.05). The post-operative complications of bleeding, bile leakage and wound infection were not observed in both two groups, and all patients were followed up for 6 to 12 months with no stone recurrence; and only 2.7% of patients (1/37) had stone recurrence after 3-year follow-up. ConclusionBoth laparoscopic cholecystolithotomy and laparoscopic cholecystectomy procedures are safe and efficient. However, laparoscopic cholecystolithotomy not only reserves gallbladder but also has superiority of less bleeding volume.
Objective To explore the prevention and treatment of injury to brangches of the middle hepatic vein in laparoecopic cholecystectomy. Methods The clinical data of 27 hemorrhage cases of injury to brangches of the middle hepatic vein in laparoscopic cholecystectomy from January 2008 to January 2010 were analyzed retrospectively. Results All 27 hemorrhage cases were successfully stopped bleeding under laparoscopy by the way of packing hemostasis （n=17）, clamping hemostasis （n=6）, and suturing hemostasis （n=4）. In the 3 hemostasis methods, the operating time and amout of bleeding in the cases with packing hemostasis was the shortest and the least, respectively, which was （90.26±12.46） min and （240.32±80.15）ml, respectively, but the differences of the 3 methods were not statistical significance （P＞0.05）. Conclusions During laparoscopic cholecystectomy, gallbladder bed should be seperated in the correct plane to avoid injury to brangches of the middle hepatic vein. The most important to ensure surgery safety is applying the right surgical hemostasis method to stop bleeding quickly, and the open surgery will be the first choice in the right time when the difficult hemostasis occurs under laparoscopy.
ObjectiveTo study the relationship of the expression of CD44v6 and bcl2 protein with histological type,pathological grading and metastasis.MethodsImmunohistochemical technique was used to investigate the expression of CD44v6 and bcl2 in 50 primary gallbladder carcinoma,20 gallbladder adenoma and 10 chronic cholecystitis.ResultsThe positive rate of CD44v6 and bcl2 was 82.0% and 60.0%，which was positively correlated with the histological type,pathological grading and metastasis of gallbladder carcinoma(P＜0.05) and was higher than that in gallbladder adenoma (CD44v6 45.0% and bcl2 30.0% respectively).Expression of CD44v6 was significantly correlated with the expression of bcl2(r=0.36,P＜0.05).ConclusionCD44v6 and bcl2 might be an important biologic marker to evaluate the malignancy and prognosis of gallbladder carcinoma.There might be some extent of coordinated regulation between them.
Objective To study the relation between expressions of transforming growth factor β1 （TGF-β1）, transforming growth factor receptor type Ⅰ (TβRⅠ) and cell proliferation, cell cycle in gallbladder carcinomas, to disclose the mechanism of TGF-β1 and TβRⅠin the gallbladder carcinogenesis，and to evaluate their values in the prognosis of gallbladder carcinomas. Methods Thirty five gallbladder carcinomas 〔age （57.94± 4.61） years, 14 male cases and 21 female cases〕 comprised 32 adenocarcinomas, 2 adenosquamous carcinoma and 1 squamous cell carcinomas. Formalin fixed, paraffin embedded sections from gallbladder carcinomas were immunostained with TGF-β1, TβRⅠ, PCNA, cyclin E antibodies by immunochemical assays. Gallbladder adenoma and chronic cholecystitis were collected as non-malignant controls. Patients of gallbladder carcinomas were followed up. Results Positive immunostaining rate of TGF-β1 was 57.14% in gallbladder carcinomas, which was significantly higher than that in gallbladder adenomas and chronic cholecystitis (P＜0.01, respectively). Expression of TGF-β1 was associated with Nevin stage, lymph nodes and distant metastasis (P＜0.05, P＜0.01, respectively). Expression of TGF-β1 was positively correlated with expression of PCNA LI and cyclin E (r=0.523 2, P=0.001 3; r=0.406 5, P=0.015 4), and 34.29% of gallbladder carcinomas were immunostained positively for TβRⅠ. Expression of TβRⅠwas significantly lower in gallbladder carcinomas than that in gallbladder adenomas and cholecystitis (P＜0.05, respectively). It was significantly lower in gallbladder carcinomas patients with lymph nodes and distant metastases than in those without (P＜0.05). Expression of TβRⅠwas negatively correlated with PCNA LI (r=-0.402 4, P=0.016 6). Patients with negative expression of TGF-β1 and/or positive expression of TβRⅠ had significant longer survival rates than those with positive expression of TGF-β1 and/or negative expression of TβRⅠ(P＜0.01, P＜0.05, respectively). Expressions of TGF-β1 and TβRⅠ correlated with prognosis of gallbladder carcinomas closely. Conclusion TGF-β1 and TβRⅠ have close correlation with cell proliferation, cell cycle of gallbladder carcinomas and are important biological markers of carcinogenesis and progress of gallbladder carcinomas. The escape of growth inhibition of TGF-β1 due to low expression of TβRⅠand carcinogenesis of TGF-β1 may play an important role in gallbladder carcinogenesis. TGF-β1 and TβRⅠare valuable indices for judging the prognosis of gallbladder carcinoma.
Four hundred and twenty six laparoscopic cholecystectomy(LC)were peformed on patients with acute and subacute cholecystitis,including ①emergency LC(59 patients),②selected LC(215 patients following administration of antibiotic and antispasmotic drugs for 10-15days),and ③selected LC(152 patients with mild biliary colic without any medication).Operative findings were ①congestion and edema of the gallbladder(208cases,11 of them were achieved laparocystectomy),②impaction of stones in the cystic infundibulum or duct with hydrops of gallbladder(142 cases,14 of them were achieved by laparocystectomy),and ③gangrene or empyema of gallbladder(76 patients,20 of them were achieved by laparocystectomy).LC was done successfully on 377 cases,conversion to open surgery was 45 cases (10.6%),severe complication occured on 4 patients for LC(reoperation,0.9%).The quthors believe that LC for patients with acute and subacute cholecystitis issafe and suitable,but LC cannot replace the classical laparocystectomy.
ObjectiveTo evaluate the diagnostic value of ultrasound for gallbladder carcinoma (GA), in order to improve the ability of early ultrasonic and clinical diagnosis of GA. MethodsWe analyzed and compared the clinical data and ultrasonic results of 42 GA cases confirmed by surgery and pathology between January 2008 and December 2013, and summarized the classification, ultrasonographic features, and diagnosis of GA. ResultsAmong the 42 cases, 25 were correctly diagnosed by ultrasound (59.5%), among which 9 were thick-wall type, 11 were protrusion type and 5 were solid type. Seventeen cases were misdiagnosed (40.5%). Pathological results showed 14 cases of highly-differentiated adenocarcinoma, 16 of moderately differentiaed adenocarcinoma, 9 of poorly-differentiated adenocarcinoma, 2 of squamous adenocarcinoma and 1 of neuroendocrine carcinoma. ConclusionUltrasound is the preferred method for the diagnosis of GA because of its convenience, although the diagnostic accuracy is still not good and more efforts should be done.
Objective To explore the operative managements of ectopic gallbladder during laparoscopic cholecystectomy (LC).Methods Twenty one cases of ectopic gallbladder undergone LC in this hospital were analyzed regarding the perioperative management, principle, and technique of operation.Results There were 2 cases of situs transversus, 1 case with gallbladder under right posterior lobe of liver, 2 under left lateral lobe of liver and 16 in the liver. All 21 cases of ectopic gallbladder had undergone LC successfully, and no complications were found during and after operation. Conclusion Anatomic ectopia of gallbladder tosses a challenging problem to laparoscopic surgeon. It is safe for surgeons to recognise actual anatomical anomaly and to manage them appropriately.
【Abstract】Objective To study the regulatory ability of peroxisome proliferatoractivated receptor γ(PPARγ) ligands to the inflammatory response in human gallbladder epithelial cells. Methods Culture human gallbladder epithelial cells and identify them . Cells were treated for 24 hours with 0, 10 μmol/L, 20 μmol/L, 30 μmol/L, 50 μmol/L and 100 μmol/L of Ciglitazone during cellular growth peak(5th day), then stimulated them with hIL-1β 5 ng/ml for 2 hours and measured the concentration of IL-6、IL-8 and TNF-α in cellular supernatants by riadioimmunoassay. Results Contrasted with control group, the expression of IL-6 and IL-8 in each test group were inhibited （P＜0.001）. The IL-6 and IL-8 levels were gradually dropped and corelated with the dosage of Cigtitazone, and manifested dosagedependence (P＜0.001). The concentration of TNF-α could not be measured. Conclusion PPARγ ligands can inhibit the expression of IL-6 and IL-8 in human gallbladder epithelial cells and probably produce effect in the regulation of cholecystic inflammation.
ObjectiveTo investigate clinical value of magnetic resonance imaging (MRI) in differentiating xanthogranulomatous cholecystitis (XGC) with gallbladder cancer (GBC). MethodsMRI data of 7 patients with XGC and 13 patients with GBC proved by surgery and pathology were analyzed retrospectively. The main contents of the observation included:①Maximum thickness of gallbladder wall; ②Diffuse thickening or localized thickening of gallbladder wall; ③Enhancement pattern (uniform or nonuniform) of gallbladder wall; ④Gallbladder wall sandwiches enhancement; ⑤Gallbladder wall nodules; ⑥Completeness of gallbladder mucosa lines; ⑦Obstruction of biliary tract; ⑧Calculus in gallbladder or bile duct; ⑨Involvement of adjacent liver; ⑩Definition of surrounding fat layer; Lymphadenopathy. ResultsIn above 11 MRI comparing features, these features such as the gallbladder wall sandwiches enhancement, the gallbladder wall nodules, the completeness of gallbladder mucosa lines, the biliary obstruction, and the lymphadenopathy were statistically significant between the XGC and the GBC (P < 0.05), while the rest features such as the maximum thickness of gallbladder wall, the type of gallbladder wall thickening, the gallbladder wall enhancement pattern, the calculus in gallbladder or bile duct, the involvement of adjacent liver, and the definition of surrounding fat layer were not statistically significant between the XGC and the GBC (P > 0.05). ConclusionMRI has important values in differentiating XGC with GBC.