Objective To study the regulative effect of angelica sinensis on cellular immune function in perioperative patients with obstructive jaundice. Methods Fourteen patients with obstructive jaundice were injected with angelica before and after operation for 14 days. The activity of IL-2 and the expression of IL-2R in lymphocytes in peripheral blood were measured, respectively. Results The activity of IL-2 and the expression of IL-2R decreased significantly in patients with obstructive jaundice (P＜0.01). The activity of IL-2 and the expression of IL-2R in peripheral blood lymphocyte increased significantly before and after operations (after treatment using angelica) (P＜0.01), though there was a little decrease after operation but they were still higher than that befor using angelica.Conclusion It maybe useful to use angelica to improve the cellular immune function in patients with obstructive jaundice.
Objective To research the changes in plasma endothelin, LPS, TNF-α, IL-6 and IL-8 in the patients with obstructive jaundice (OJ) and non-obstructive jaundice (NOJ) after surgery. Methods The plasma ET, LPS, TNF-α, IL-6 and IL-8 were measured in 15 patients without jaundice as controls. Results As compared with NOJ, the postoperative changes of ET, LPS, TNF-α, IL-6 and IL-8 in OJ group increased significantly at multiple time points (P＜0.05). Conclusion There is interaction between ET,LPS, TNF-α, IL-6 and IL-8 and damage to multiple organ function in patients with OJ after surgery.
ObjectiveTo investigate the effects of different levels of resveratrol on oxidative stress injury in central nervous system of rats with obstructive jaundice and its protective effect and mechanism of oxidative stress injury.
MethodsThirty two female SD rats of 6 weeks old were used as experimental object. The animals were randomly divided into four groups, 8 rats in each group. Sham operation group (SO group), the common bile duct were seperated without ligation; while the models of obstructive jaundice of obstructive jaundice group (OJ group), obstructive jaundice+low dose resvera-trol (L-Res)treatment group (OJ+L-Res group), and obstructive jaundice+high dose resveratrol (H-Res) treatment group (OJ+H-Res group) were established by operation. After the operation, the rats in OJ+L-Res group and OJ+H-Res group were treated with different doses of resveratrol, the rats in SO group and OJ group were given the same dose of normal saline. On the 14th day after operation, blood were tested for total bilirubin (TBIL), direct bilirubin (DBIL), ALT, and AST. And cerebral cortex specimen were collected, then malondialdehyde (MDA), total superoxidedismutase (T-SOD) activity, and HO-1 protein expression in the rats brain of the four groups were measured.
ResultsThe levels rise of TBIL and DBIL after modeling suggested that obstructive jaundice model were estabilshed successfully, but there was no significant difference among the OJ group, OJ+L-Res group, and OJ+H-Res group. In the OJ group, OJ+L-Res group, and OJ+H-Res group, the levels of ALT, AST, and MDA were increased while levels of T-SOD and HO-1 protein expression were decreased when compared with SO group(P < 0.05). Among the OJ group, OJ+L-Res group, and OJ+H-Res group, levels of ALT, AST and MDA were lower in the treatment groups than in the OJ group(P < 0.05), while levels of T-SOD and HO-1 protein expression which reflects the oxidative stress were higher in the treatment group(P < 0.05). Different doses of resveratrol had different effects on T-SOD and HO-1 protein expression with statisticl significance (P < 0.05).
ConclusionsResveratrol have little effect on TBIL and DBIL of obstrctive jaundice rats, but it can protect the liver function, and it has antioxidant properties of decreasing MDA and incresing SOD and HO-1 protein expression levels in the cerebral cortex cells of obstructive jaundiced rats.
Objective To investigate the effects of cimetidine on the red cell immune function and interleukin-2(IL-2) in rats with obstructive jaundice. Methods Sixty SD rats were divided into bile duct ligation(BDL) group, cimetidine therapy (BDLC) group and sham operation(SO) group respectively. The red cell immue function and serum IL-2 level were determined with the red cell yeast-rosttes test and radioimmunoassay respectively. Results The red blood cell C3b receptor rosette rate(RBC-C3bRR), the red blood cell immune complex rosette rate(RICR), the red blood cell C3b receptor rosette-forming excited rate(RFER) and serum IL-2 level were significantly lower in BDL group as compared with SO group, the red blood cell C3b receptor rosette-forming inhibitory rate(RFIR) in BDL group was higher than that of SO group. After 7 days’ cimetidine therapy RBCC3bRR, RICR, RFER and IL-2 became higher than those of BDL group, but RFIR was lower than that of BDL group. Conclusion Supplemental cimetidine can significantly enhance the impaired red cell immune function and IL-2 production in rats with obstructive jaundice.
Objective To investigate the correlation between the plasma endothelin (ET) and gastric mucosal pathology.MethodsIn this experiment,seven dogs who experienced common bileduct ligation were in experiment group, the other three dogs who underwent shamoperation were control group. By using specific radio immunological method, the plasma ET levels were determined in dogs before and after 1,4,7 d. The total bilirubin levels were determined before and after 1,4,7 d after operation by using carbazotic acid method.The gastric mucosa,7 d after operation, was cut into slices and was examined under the electron microscope and the light microscope.Results In the experiment group,the levels of ET and total bilirubin rose continually and were higher than those in control group. Vascular congestion and oedema were seen in gastric mucosa of common bileduct ligated dogs. Under the electron microscope, we could see the dilated blood capillary and sludging of blood,the intenstitial mucusa cells oedema. Conclusion The increase of plasma ET might lead to impairment of mucosal microcirculation,which might be one of the pathogens that could induce the gastric mucosal damages in common bileduct ligated dogs.
This experimental study was aimed at observing the influence of bile salt and lactulose on intestinal mucosa of obstructive jaundiced rat. Twenty adult Wistar rate were divided into four groups (five rats for each group): sham operation, common bile duct ligation (CBDL), CBDL plus sodium deoxycholate feeding and CBDL plus lactulose feeding. The results showed that the intestinal mucosa of rats with obstructive jaundice took on marked edema, markedly decreased activities of adenosine triphosphatase, alkaline phosphatase and succinic dehydrogenase and intensified acid phosphatase activity. However, the intestinal mucosa of the rats, treated with bile salt or lactulose as compared with that of the obstructive jaundiced rats showed both pathological and histochemical improvement.
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.
Objective To investigate the changes of renal medulla aquaporin 2 expression and morphological changes of epithelia of collecting tube after bile duct recanalizaiton operation. Methods Thirty rats were divided into two groups randomly. Common bile duct ligation was performed on 20 experimental rats with silicon tubes 2 mm in extre-diameter, and sham operation on the other 10 rats. Seven days later, bile duct recanalizaiton was performed on obstructive jaundice group and sham operation on contrast group. Experimental rats were divided into two subgroups randomly. Half of them were killed immediately and the others would be killed 24 hours later. Serum of each rat was collected to detect hepatic function and renal function. Renal medulla was fixed for microscopic examination and was kept in the -80 ℃ refrigerator for aquaporin 2 expression measurement by Western blot technique. Results All of the animals accomplished the experiment smoothly. Golden ascites were found in the rats of obstructive jaundice group. Twenty-four hours after recanalization, serum bilirubin levels decreased 〔(45.95±8.39) μmol/L〕, P＜0.01, and there was no significant change in blood urine and creatine level. Compared with sham operation group (21 966.20±1 544.70), expression of aquaporin 2 decreased significantly after common bile duct ligation in obstructive jaundice group (15 665.30±1 181.85), P＜0.01. After recanalizaion, the expression of aquaporin 2 in obstructive jaundice group increased (19 490.80±4 239.32), P＜0.01. Conclusion Common bile duct obstruction would lead to epithelium injury of renal collecting tube, and down regulate the aquaporin 2 expression.
【Abstract】ObjectiveTo explore the effect of glutamine on immune function of rat with obstructive jaundice and its possible mechanism. MethodsFifty male Wistar rats were randomly divided into three groups: Control group (n=10)， obstructive jaundice group (n=20) and glutamine treatment group (n=20). The serum concentration of TNF-α, IL-10 was detected by using radioimmune method. Liver function was measured through automated biochemistry analyzer. The animal model of obstructive jaundice was established by ligating the rat’s common bile duct. Bacteria cultures were performed with the rat’s tissues of lung, spleen, liver and kidney respectively. ResultsCompared with control group, obstructive jaundice group showed statistically lower serum level of TNF-α, and statistically higher serum level of IL-10, TBIL, ALT and AST during the first and the second week after ligation of common bile duct. During the first and second week after administration of glutamine, the serum TNF-α of glutamine treatment group was statistically higher than that in control group and obstructive jaundice group. Meanwhile, glutamine treatment group showed statistically lower serum level of IL-10, TBIL, ALT and AST than obstructive jaundice group. There were statistically less bacteria translocations in glutamine treatment group than those in obstructive jaundice group. Conclusion Glutamine can increase the immune function by changing serum concentration of TNF-α, IL-10 and decrease the bacteria translocation.
Objective To investigate the changes and significance of intercellular adhesion molecule-1 (ICAM-1) and tumor necrosis factor-α (TNF-α) in intestinal mucosa in rats with obstructive jaundice. MethodsTwenty-four SD rats were randomly divided into sham operation (SO) group and bile duct ligation (BDL) group, and each group were randomly divided into the day 7 and day 14 subgroup. The expression of ICAM-1 was assayed by immunohistochemistry. The level of TNF-α was determined by ELISA. The activity of myeloperoxidase (MPO) and diamine oxidase (DAO) was determined as well.ResultsOn the day 7 and 14, in the bile duct ligation group, the ICAM-1 protein was mainly expressed in the intestinal epithelia and increased with the time on (P＜0.05); the level of TNFα increased from （14.25±1.01） ng/g to （23.83±1.43） ng/g （P＜0.01）； the intestinal DAO activity decreased from （1.70±0.36） U/mg to （1.22±0.41） U/mg （P＜0.01），and plasma DAO activity increased from （6.44±1.74）U/ml to （8.93±1.29） U/ml （P＜0.01）; the MPO activity increased from （2.85±1.22 ） U/mg to （4.93±1.37） U/mg （P＜0.01）. ConclusionThe ICAM-1 expression is significantly upregulated and the level of TNFα significantly increases after bile duct ligation, which may be involved in the PMNmediated injury to intestinal mucosa.
