Objective To investigate the effect of IL-1 7A on lipopolysaccharide (LPS)-induced neuroinflammation and fear conditioning test.Methods Among 70 male SD rats aged 18 months, firstly,thirty rats were randomly divided into five groups:control group(group A),LPS 6 h group (group B),12 h group(group C),24 h group(group D),48 h group(group E).Group A were injected intraperitoneally with normal saline and groups B,C,D and E were injected with LPS 500 μg/kg.Ani-mals of groups A,B,C,D and E were killed respectively after LPS injection and their hippoeampus tis-sue was detected for the concentration of IL-1 7A.Secondly,forty rats were randomly divided into 4 groups:control group(group O),IL-1 7A antibody group(group P),LPS group (group Q),IL-1 7A antibody+LPS group(group R).Group P and group R were injected intracerebroventricularly with IL-1 7A antibodies 3 μl (200 μg/μl),groups O and Q were injected equal volume of normal saline.30 min later,groups Q and R were injected intraperitoneally with LPS 500 μg/kg,groups O and P were in-jected equal volume of normal saline.24 h later,contextual fear conditioning test was performed. Then,all animals were killed and their hippocampus tissue would be detected for the concentration of TNF-αand IL-6,as well as the expression of Iba1-positive cells.Results The concentration of IL-1 7A of groups B,C,D and E increased significantly compared with group A (P <0.01 ),there was no difference between groups E and A.The freezing time of groups Q and R was significantly shortened than that in group O(P <0.01 or P <0.05 ),the freezing time of group R was significantly longer than that in group Q(P <0.01).The concentration of TNF-αand IL-6 of groups Q and R was obvi-ously higher than group O(P <0.01 ),the concentration of TNF-α and IL-6 of group R lower than group Q(P <0.01).The expression of Iba1-positive cells in hippocampal area CA1 of groups Q and R was obviously increased compared with group O(P <0.01).Compared with group Q,the expression of Iba1-positive cells in hippocampal area CA1 of group R were obviously decreased (P < 0.05 ). Conclusion IL-1 7A is implicated in the early stage of LPS-induced neuroinflammation and the chan-ging of freezing time in contextual fear conditioning in aged rats.

Objective To investigate the clinical significance of detecting cardiac troponin Ⅰ (cTnⅠ) and CK -MB in children with hand-foot-and-mouth disease and myocardial injury.Methods 90 children with hand-foot-and-mouth disease (observation group) were detected the level of serum cTnⅠ and CK-MB.At the same time,40 healthy children were chosen as control group.Results Compared with the control group,the levels of CK-MB and cTnl in observation group were significantly higher than those of the control group (t =8.92,5.46,all P ＜ 0.01),which indicated that children with hand,foot and mouth disease was easier to merge myocardial injury.CK-MB and cTnl levels in high-risk group were significantly higher than those in normal children group (t =9.17,6.13,all P ＜ 0.01),and the levels of CK-MB and cTnl were positively correlated with severe degree (r =0.767,0.683,all P ＜ 0.01).For children with hand,foot and mouth disease merged myocarditis,cTnl diagnostic sensitivity (53.8％) was lower than that of CK-MB diagnostic sensitivity (71.8％),but the specificity was better than that of CK-MB,and the diagnosis of cTnl detection window 2 weeks longer than CK-MB,but after 2 weeks both lose their clinical diagnostic significance.Conclusion Children with hand,foot and mouth disease easily merge myocardial damage,dynamic measuring CK-MB and cTnl levels could help early diagnosis of children with hand,foot and mouth disease whether merged myocardial damage,both applications can also complement each other,more timely and accurate reflection of disease progression and recovery,it is worth promoting.

Objective To discuss the application of combined probiotics pretreatment and late triple therapy with helicobacter pylori infection in children.Methods 300 children with helicobacter pylori infection were randomly divided into three groups according to the way of random table.Group A was treated with standard triple therapy, omeprazole,amoxicillin and clarithromycin treatment,and 10 d was 1 treatment course.B group was given probiotic pretreatment,prior to the triple therapy using compound lactobacillus acidophilus piece 1 piece /time,cold water to take after meals,taking 2 weeks,follow -up treatment with triple therapy for 10d.In group C,triple therapy before using compound lactobacillus acidophilus piece 1 piece /time,cold water to take after meals,taking 2 weeks,follow -up treatment with triple therapy for 10d.To take one week after the completion of compound lactobacillus acidophilus piece 1 piece /time,cold water after meals.The clinical therapeutic effects were recorded.Results The helicobacter pylori clearance rate of group A was 55.00%,that of group B was 86.00%,that in group C was 89.00%,the helico-bacter pylori clearance rate of group B and group C was significantly higher than that in group A,the difference was statistically significant (χ2 =23.103 7,28.670 6,all P <0.05).The treatment effect between group B and group C had no statistically significant difference (χ2 =0.411 4,P >0.05 ).In A group,nausea and vomiting occurred in 5 cases,2 cases of diarrhea,abdominal distension abdominal pain in 4 cases,skin rash in 5 cases.In group B,nausea and vomiting occurred in 2 cases,0 cases of diarrhea,abdominal distension abdominal pain in 1 case,skin rash in 1 case.In group C,nausea and vomiting occurred in 1 case,0 cases of diarrhea,abdominal distension abdominal pain 0 cases,skin rashes in 1 case.The incidence rate of adverse reactions in group B and group C was lower than that in group A,the difference was statistically significant (χ2 =11.965 8,8.000 0,all P <0.05).The incidence rate of ad-verse reactions between group B and group C had no statistically significant difference (χ2 =0.687 3,P >0.05). Conclusion Joint probiotics pretreatment and late triple therapy application in helicobacter pylori in children can promote helicobacter pylori clearance,reduce the triple therapy drug adverse reactions,it is worthy of popularization and application in clinic.

OBJECTIVETo construct a three-dimensional (3D) model of arteries supplying the extrahepatic bile duct with a new segmentation algorithm based on submillimeter CT data.

METHODSThe new image segmentation algorithm based on interactive volume rendering was integrated into Medical Image Three-Dimensional Visualization System (MI-3DVS) as an intersected plug-in. The abdominal submillimeter CTA data of 10 patients were imported into MI-3DVS and the 3D model of the extrahepatic bile duct and its supplying arteries were constructed. The 3D model was zoomed in, zoomed out and spinned for observation and analysis of the arteries supplying the extrahepatic bile duct.

RESULTSThe 3D models of the blood supply to extrahepatic bile duct allowed stereoscopic, and accurate display of the fourth- and fifth-level branches of the hepatic artery, the second-level branches of the cystic artery, the pancreatic duodenal artery arch and the retroportal artery. The 3D models also provided a clear vision of the biliary structures including the hepatobiliary tract, the left and right hepatic ducts, gallbladder, the liver duct, and the common bile duct.

CONCLUSIONBased on the segmentation method of interactive volume rendering, the CT data of the arterioles supplying the extrahepatic bile duct can be extracted and segmented for 3D reconstruction to display the three-dimensional anatomical structures of the extrahepatic bile duct and its supplying arteries.

Bile Ducts, Extrahepatic ; anatomy & histology ; Hepatic Artery ; anatomy & histology ; Humans ; Imaging, Three-Dimensional ; Liver ; blood supply ; Models, Anatomic

OBJECTIVETo explore the application value of the MI-3DVS in patients with hepatic artery variation receiving duodenopancreatectomy.

METHODSA total of 114 patients who had undergone pancreatoduodenectomy were retrospectively summarized and analyzed during January 2010 to July 2012. The clinical data of 64-slice multidetector CT angiography (64-MDCTA) scanning was introduced into MI-3DVS for procedural segmentation, registration and 3-dimensional reconstruction. Based on the reconstructed 3-dimensional model, the origination and bifurcations of variant hepatic artery was observed. And its anatomical relationships with abdominal organs and vessels were also observed. Thereafter, preoperative procedures planning was formulated. The findings were compared to those found during the operation and by postoperative digital subtraction angiography (DSA) of coeliac artery.

RESULTSThe abdominal 3D models can clearly display the size and shape of tumor, the origin and course of the blood vessels, as well as the 3D anatomic relationship between tumors and organs, blood vessels. A total of 14 cases (12.3%, 14/114) were found with variant, including 9 cases (7.9%) with replaced right hepatic artery arising from superior mesenteric artery, 3 cases (2.6%) with replaced common hepatic artery arising from superior mesenteric artery, 2 cases (1.8%) with replaced left hepatic artery arising from left gastric artery. The 14 patients all received standard procedures of duodenopancreatectomy. Compared to the intraoperative findings and postoperative DSA examination, the sensitivity, specificity and accuracy of MI-3DVS to variant hepatic artery is 100%. The preoperative planning guided by MI-3DVS is in line with the intraoperative findings.No postoperative complications occurred in all 14 patients, including hepatic abscesses, biliary fistula and liver failure.

CONCLUSIONSMI-3DVS can accurately diagnose hepatic artery variation before duodenopancreatectomy. Therefore, it contributes to the formulation of preoperative surgical plans.It also increases the success rate of the surgical operations and decreases the occurrence of postoperative complications.

Adult ; Aged ; Aged, 80 and over ; Female ; Hepatic Artery ; abnormalities ; Humans ; Imaging, Three-Dimensional ; Male ; Middle Aged ; Pancreaticoduodenectomy ; instrumentation ; Retrospective Studies ; Tomography, Spiral Computed ; Young Adult