【Abstract】Objective To explore the relation between the expression of telomerase and DNA ploidy with biliarypancreatic system cancer, so as to find a better way to diagnose and distinguish jaundice between malignance and benign disease.Methods Endoscopic retrograde cholangiopancreatography (ERCP) were performed before operation in patients with obstructive jaundice. The bile and pancreatice juice were collected before ERCP. Biopsy specimens from part of patients were obtained during ERCP. All cancer specimens were possessed once again during operation and were assessed by the activity of telomerase and DNA ploidy. Results ① Telomerase positive rate 〔87.50%(56/64)〕 of tissue specimens in malignant obstructive jaundice were higher than that in benign obstructive jaundice 〔3.33%(2/60)〕，P=0.000. ② Telomerase positive rate〔71.88%(46/64)〕of Bile and pancreatice juice in malignant obstructive jaundice were higher than that in benign obstructive jaundice 〔3.33%(2/60)〕， P=0.000, tissue specimens obtained by endoscopy with malignant obstructive jaundice had detectable telomerase activity, positive rate was 83.33%（20/24）. ③ The rate of DNA heteroploid with malignant obstructive jaundice was 62.50%（40/64）, that of diploid can be seen in all patients with benign obstructive jaundice, the difference was statistically significant (P=0.000). ④ The rate of telomerase positive and DNA heteroploid in high differentiation tumor were significantly lower than in middlelow differentiation tumor （P=0.028，P=0.001）.Conclusion Applying the duodenoscope we collected the bile and pancreatic fluid before operation and obtain biopsy specimens whose telomerase activity and DNA ploid were detected. This is simple, safe, quick method which can identify the malignant and benign obstructive jaundice.
Objective To investigate the effects and mechanisms of bile on small intestine mucosal barrier.Methods Fifty Wistar rats were assinged into 3 groups randomly: obstructive jaundice (OJ) group （n=20）, biliary external drainage group （n=20） and control group （n=10）. Ten days after operation, the plasma endotoxin level was determinated, the terminal ileum mucosas was obtained to be morphologically measured by light microscope, and immunohistochemistry and Western blot were uesd to examine the expressions of tight junction proteins zona occludens-1 (ZO-1) and occludin in the mucosas. Results Atrophy significantly appeared in the distal ileum mucosas in OJ group. Compared with control group, the intestinal villus height, mucosa thickness and crypt depth in OJ group were obviously decreased 27.8%, 21.7%, and 25.4% (P=0.001, 0.001, 0.040). There were no differences between external drainage group and control group (P=0.050, 0.070, 0.080); While the values of external drainage group were significantly higher than those in OJ group (all P=0.001). The level of plasma endotoxin was up to (1.49±0.27) EU/ml in OJ group compared with control group 〔（0.27±0.09） EU/ml〕, P=0.001. In external drainage group, the value was （0.91±0.25） EU/ml, which was obviously higher than that in control group and lower than that in OJ group （all P=0.001）. Immunohistochemical study showed b positive expression of ZO-1 dropped from 7/10 in the control group to 6/20 in OJ group （P=0.040）, occludin expression was 8/10 in control group and 7/20 in OJ Group （P=0.020）; expressions of them in external drainage group 〔8/20 （P=0.100,0.210） and 9/20 （P=0.060, 0.200）〕 displayed no significant differences compared with the other twogroups. Quantitative testing of Western blot showed the expressions of ZO-1 and occludin in OJ group were significantly lower than those in control group (P=0.001, 0.010), the values in external drainage group were higher than those in OJ group （P=0.005, 0.014）. The expression of ZO-1 was lower in external drainage group than that in control group (P=0.001), and there was no significant difference of occludin between the two groups (P=0.062）. Conclusion Lack of intestinal bile will undermine the intestinal tight junction protein composition, and make intestinal mucosal barrier impaired. The intestinal barrier more severely injured when biliary tract obstructs because of multiple factors. Bile plays an important role in the maintenance of intestinal mucosal barrier.
【Abstract】Objective To study the expression of serum soluble interleukin-2 receptor (sIL-2R) level in perioperative period of patients with obstructive jaundice and its clinical significance. Methods Serum sIL-2R was measured during perioperative period in 30 patients with obstructive jaundice by using a sandwich enzyme linked immunosorbent assay (ELISA). Results The preoperative serum sIL-2R level in patients with obstructive jaundice was increased obviously. The expression of serum sIL-2R level in them was correlated with the degree and duration of obstructive jaundice and nutritional status respectively (r=0.734, P＜0.01; r=0.646, P＜0.01; r=0.594, P＜0.05). The serum sIL-2R in the patients with malignant obstructive jaundice was significantly higher than that with benign obstructive jaundice (P＜0.05). Among the patients with malignant obstructive jaundice, the serum sIL-2R level in the patients with metastasis was higher than in those without metastasis (P＜0.05). The immunologic function underwent a process from temporary suppression to gradual recovery during perioperative period. On the 21th day after operation the sIL-2R was recovered to normal level in patients with benign obstructive jaundice while it only recovered to preoperative level in patients with malignant obstructive. Conclusion Depressed immunity is observed in patients with obstructive jaundice. The abnormal expression of sIL-2R is related to the type, degree and duration of obstructive jaundice and the nutritional status and metastasis. The result that preoperative sIL-2R might be used to evaluate the state of immunity, clinical condition, and treatment and prognosis of patients with obstructive jaundice.
Objective To compare the therapeutic effect of percutaneous transhepatic cholangial drainage (PTCD) and operation drainage for the patients with inoperable malignant obstructive jaundice. Methods A total of 131 patients with inoperable malignant obstructive jaundice were treated in this hospital, in which 102 patients had PTCD by placement of metallic stent and (or) plastic tubes to remove obstruction of bile duct (interventional treatment group). Simultaneously 29 patients were selected for operation by intraexternal drainage (operation drainage group). The patients were followed up for comparison of the serum level of total bilirubin, postoperative complications, average length of hospitalization and average cost between the two groups. Results PTCD was successfully performed in all the patients of the interventional treatment group. There were no significant differences of 50% decrease period of average total bilirubin level or postoperative complications between the two groups (Pgt;0.05). The average length of hospitalization and average cost of interventional treatment group were less than those of operation drainage group (Plt;0.05). Conclusions Compare with operation drainage, interventional treatment can reduce average length of hospitalization and average cost, without increase of postoperative complications, which is a main chance of treatment for malignant obstructive jaundice.
Ｈｅｍｏｄｙｎａｍｉｃ ｃｈａｎｇｅｓ ｏｆ ｓｙｓｔｅｍｉｃ ａｎｄ ｐｏｒｔａｌ ｖｅｉｎ ｆｌｏｗ ａｎｄ ｒｅｇｕｌａｔｉｏｎ ｏｆ ｉｎｄｏｍｅｔｈａｃｉｎ ｈａｖｅ ｂｅｅｎ ｓｔｕｄｉｅｄ ｉｎ ７３ ｐａｔｉｅｎｔｓ ｗｉｔｈ ｏｂｓｔｒｕｃｔｉｖｅ ｊａｕｎｄｉｃｅ（ｇｒｏｕｐ Ａ）ａｎｄ ３９ ｃａｓｅｓ ｗｉｔｈ ｓｉｍｐｌｅ ｇａｌｌｂｌａｄｄｅｒ ｓｔｏｎｅｓ（ｇｕｏｕｐ Ｂ）．Ｏｂｓｔｒｕｃｔｉｖｅ ｊａｕｎｄｉｃｅ ｗａｓ ｓｕｂｇｒｏｕｐｅｄ ｉｎｔｏ ｇｒｏｕｐ Ａ１（ｎｏｉｎｄｏｍｅｔｈａｃｉｎ ａｄｍｉｎｉｓｔｒａｔｉｏｎ），ｇｒｏｕｐ Ａ２（ｐｒｅｏｐｅｒａｔｉｖｅ ａｄｍｉｎｉｓｔｒａｔｉｏｎ ｏｆ ｉｎｄｏｍｅｔｈａｃｉｎ），ｇｒｏｕｐ Ａ３（ｐｏｓｔｏｐｅｒａｔｉｖｅ ａｄｍｉｎｉｓｔｒａｔｉｏｎ ｏｆ ｉｎｄｏｍｅｔｈａｃｉｎ），ａｎｄ ｇｒｏｕｐ Ａ６（ｓｅｎｉｌｅ ｏｂｓｔｒｕｃｔｉｖｅ ｊａｕｎｄｉｃｅ）．Ｏｆ ｔｈｅｍ ｇｒｏｕｐ Ａ１ ｗａｓ ｓｕｂｇｒｏｕｐｅｄ ｉｎｔｏ ｇｒｏｕｐ Ａ４（ｍａｌｉｇｎａｎｔ ｏｂｓｔｒｕｃｔｉｏｎ）ａｎｄ ｇｒｏｕｐ Ａ５（ｂｅｎｉｇｎ ｏｂｓｔｒｕｃｔｉｏｎ）ａｇａｉｎ．Ｔｈｅ ｒｅｓｕｌｔｓ ｓｈｏｗｅｄ ｔｈａｔ ｔｈｅ ｓｔｒｏｋｅ ｖｏｌｕｍ（ＳＶ），ｃａｒｄｉａｃ ｏｕｔｐｕｔ（ＣＯ）ａｎｄ ｃａｒｄｉａｃ ｉｎｄｅｘ （ＣＩ）ｗｅｒｅ ｈｉｇｈｅｒ ｉｎ ｅａｃｈ ｇｒｏｕｐ ｏｆ ｏｂｓｔｒｕｃｔｉｖｅ ｊａｕｎｄｉｃｅ ｔｈａｎ ｔｈｏｓｅ ｉｎ ｇｒｏｕｐ Ｂ（Ｐ＜０．０１），ａｎｄ ｔｈｅ ｍｅａｎ ａｒｔｅｒｙ ｐｒｅｓｓｕｒｅ （ＭＡＰ），ｓｔｒｏｋｅ ｖｅｓｓｅｌ ｒｅｓｉｓｔａｎｃｅ （ＳＶＲ）ａｎｄ ｐｏｒｔａｌ ｖｅｉｎ ｂｌｏｏｄ ｆｌｏｗ（ＰＶＦ）ｗｅｒｅ ｌｏｗｅｒ ｉｎ ｅａｃｈ ｇｒｏｕｐ ｏｆ ｏｂｓｔｒｕｃｔｉｖｅ ｊａｕｎｄｉｃｅ ｔｈａｎ ｔｈｏｓｅ ｉｎ ｇｒｏｕｐ Ｂ（Ｐ＜０．０１）．Ｔｈｅ ＭＡＰ，ＳＶＲ ａｎｄ ＰＶＦ ｉｎ ｇｒｏｕｐ Ａ２ ａｎｄ ｇｒｏｕｐ Ａ３ ｓｈｏｗｅｄ ｂｅｔｔｅｒ ｉｍｐｒｏｖｅｍｅｎｔ ｔｈａｎ ｔｈｏｓｅ ｉｎ ｏｔｈｅｒ ｓｕｂｇｒｏｕｐｓ，ｂｕｔ ａｓ ｃｏｍｐａｒｅｄ ｗｉｔｈ ｇｒｏｕｐ Ｂ ｔｈｅｒｅ ｗｅｒｅ ｓｉｇｎｉｆｉｃａｎｔ ｄｉｆｆｅｒｅｎｃｅｓ （Ｐ＜０．０１）．Ｔｈｅ ａｕｔｈｏｒｓ ｃｏｎｓｉｄｅｒ ｔｈａｔ ｉｎｄｏｍｅｔｈａｃｉｎ ｃａｎ ｉｍｐｒｏｖｅ ｔｈｅ ｃｉｒｃｕｌａｔｉｏｎ ｆｕｎｃｔｉｏｎ，ＰＶＦ ａｎｄ ｌｉｖｅｒ ｆｕｎｃｔｉｏｎ ｉｎ ｐａｔｉｅｎｔｓ ｗｉｔｈ ｏｂｓｔｒｕｃｔｉｖｅ ｊａｕｎｄｉｃｅ．
ObjectiveTo study the changes of lipopolysaccharide binding protein (LBP) in the serum of Wistar rats with obstructive jaundice and to investigate its potential mechanism.MethodsEighty male Wistar rats were randomly divided into obstructive jaundice group (OJ group, n=40） and sham operation group (SO group, n=40）. Before operation and the 5th, 10th, 15th, 20th day after common bile duct ligation, the levels of LBP, endotoxin, tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) in plasma were detected in all the rats. ResultsLBP levels in serum increased significantly in OJ group on the 10th day after operation compared with those of SO group. Moreover, LBP levels gradually increased in OJ group with the prolongation of obstructive time. A positive correlation existed between serum LBP and plasma endotoxin, TNF-α and IL-6.ConclusionThe study demonstrates that LBP in serum is high and plays an important role in the pathogenesis of multiple organ injury secondary to obstructive jaundice. It may be an appropriate way to treat patients with obstructive jaundice by decreasing LBP levels in serum.
We have measured the serum levels of total cholic acid (TCA) in 103 samples of obstructive jaundiced patients (OB group) and 83 samples of gallbladder stone patients without jaundice (control group) by enzymeconjugated colorimetric analysis method. The results revealed that TCA level was higher in OB group than in control group (Plt;0. 001) and had postive correlation with total bilirubin, direct bilirubin and alanine aminotransferase in OB group (Plt;0.01 in all). The clinical value of TCA in obstructive jaundice in comparison with alkaline phosphatase is discussed.