For establish a sensitive and specific method to diagnose schistosomasis,we used the PCR and NEST-PCR to detect the Schistosoma japonicum 5D gene encoding an immunogenic miracidial antigen in samples from schistosomiasis patients and animal models.The PCR protocol gave positive re- sults in liver.spleen and stool samples,but the serum from patients and animal models as well as plasma and peripheral blood mononuclear cells from animal models were negative.The results suggest that S. japonicum DNA not exist in peripheral blood.

Objective To compare the clinic effect of the locking compression plate (LCP) fixation and the anatomical plate in treatment of high-energy distal tibial fractures. Methods The study involved 42 patients with high-energy distal tibial fractures treated between May 2003 and May 2009. The anatomical plate group included 24 patients ( 16 males and 8 females, at average age of 39 years), of whom there were 13 patients with type A fractures, five with type B and six with type C according to the AO/ASIF classification. The LCP group included 18 patients ( 15 males and 3 females, at average age of 40 years), of whom there were 11 patients with type A fractures, three with type B and four with type C according to the AO/ASIF classification. All the patients were followed up for 8-17 months. Their functional and radiographic outcomes were collected. The operation time, intra-operative blood loss, X-ray exposure, bone healing time, post-operative complications and therapeutic effects were compared between both groups. Mazur's criteria was used to evaluate the function of the ankle. Results The LCP group was followed up for average 11.6 months and the anatomical plate group for average 14.2 months, which showed fracture healing in all the patients. The bone graft in the anatomical plate group was used more frequently than the LCP group, while the X-ray exposure in the LCP group was much more than that in the anatomical plate group. The operation time, incision size, blood loss, postoperative complications and radiographic bone healing time in the LCP group were significantly less than those in the anatomical plate group. Conclusions Both the LCP and anatomical plate are effective methods for the high energy distal tibial fractures. LCP has advantages of less trauma, quick fracture healing and less complications, is consistent with the biomechanics of internal fixation and hence is an ideal method for the treatment of the high-energy tibial fractures.

Objective To study the antitumor activity of Xerophilusin G on S180 cells,and Its mechanism.Methods Modified MTT assay was used to test the effect of Xerophilusin G on the proliferation of S180 tumor cell strain.The influences on tumor growth and immune organs of mice with transplanted sarcoma (S180) were observed.The cell cycle of S180 cell lines and mouse sarcoma (S180) was analyzed by flow cytometry.The lymphocyte proliferation activity of spleen stimulating was tested.The level of IL-2 in serum of mice with transplanted sarcoma (S180) was measured by ELISA.Results The IC50 of Xerophilusin G in S180 cell lines was 19.80 μg·mL-1,the LD50 in mouse for Xerophilusin G was 121.11 mg·kg-1 through intraperitoneal injection.The tumor inhibition rate of Xerophilusin G was 32.11％ and 41.60％,respectively at the doses of 3 and 6 mg · kg-1 (P ＜ 0.05).Compared with the control,the thymus,kidney and cardiac index were decreased.The cell proportion at G0/G1 phase of mouse sarcoma (S180) was increased.T and B cell proliferation activities in tumor-bearing mice were enhanced (P ＜ 0.05).As compared with control group,the serum level of IL-2 was decreased 90.9％ and 77.1％ in low-and medium-dose groups,respectively (P ＜ 0.05).Conclusion Xerophilusin G has remarkable effects in sarcoma (S180) bearing mice.The antitumor mechanism of Xerophilusin G might be related with G0/G1 phase arrest of mouse sarcoma (S180) cells and enhancing the activity of T and B cell but not related with increasing the secreting of IL-2.

The etiology of diaphragmatic hernia in adults is mainly congenital and traumatic, its overall incidence in adults is low, and adult diaphragmatic hernia is easily misdiagnosed and missed diagnosis because of lacking specificity in clinical presentation. There is no clinical guidelines or consensus for the diagnosis and treatment of diaphragmatic hernia in adults. The authors inquire into the diagnosis and treatment of diaphragmatic hernia in adults by summarizing relevant litera-tures and combining with clinical practice, and recommend that multi-slice spiral computed tomo-graphy should be promptly refined for suspected cases, especially focusing on sagittal images. The symptomatic patients should be repaired promptly, with a preference for laparoscopic surgery, and mesh augmentation is recommended in those with larger defects.

Objective To explore the application value of the extra-glissonian pedicle transection approach guided by arantius' ligament in laparoscopic left hemihepatectomy.Methods The retrospective cohort study was conducted.The clinical data of 57 patients who underwent laparoscopic left hemihepatectomy in the First Affiliated Hospital of Fujian Medical University from January 2015 to January 2018 were collected.There were 18 males and 39 females,aged from 29 to 75 years,with an average age of 57 years.Of the 57 patients,22 undergoing the laparoscopic left hemihepatectomy with extra-glissonian pedicle transection approach guided by arantius' ligament and 35 undergoing laparoscopic left hemihepatectomy with regular intra-glissonian pedicle transection approach were allocated into the extra-glissonian transection group and intra-glissonian transection group,respectively.Observation indicators:(1) intraoperative situations and postoperative short-term outcomes;(2) postoperative complications;(3) follow-up.Patients were followed up by outpatient examination and telephone interview to investigate postoperative recurrence of diseases up to June 2018.Measurement data with normal distribution were represented as Mean±SD and comparison between groups was analyzed using the t test.Count data were described as absolute number or percentage and comparison between groups was analyzed using the chi-square test.Results (1) Intraoperative situations and postoperative short-term outcomes:the operation time,dissection time of left hepatic pedicle,volume of intraoperative blood loss were (123± 37) minutes,(14± 5) minutes,(337± 169) mL in the extra-glissonian transection group and (148± 27) minutes,(22± 3) minutes,(495±203) mL in the intra-glissonian transection group,respectively,showing statistically significant differences between the two groups (t =2.992,7.733,3.045,P＜0.05).Cases with intraoperative blood transfusion,time of gastrointestinal recovery,time for postoperative drainage-tube removal,duration of postoperative hospital stay were 1,(1.8±0.9)days,(3.2±0.9)days,(8.2± 1.7)days in the extra-glissonian transection group and 4,(2.0± 0.8)days,(3.6±0.8)days,(10.0±4.0)days in the intra-glissonian transection group,respectively,showing no statistically significant difference between the two groups (x2 =0.171,t=1.304,1.857,1.622,P＞0.05).There was no uncontrolled hemorrhage or air embolism in the two groups.(2) Postoperative complications:3 patients had complications of Clavien-Dindo classification Ⅰ in the extra-glissonian transection group including 1 of pulmonary infection,1 of abdominal infection,1 of incisional infection and 7 had complications in the intraglissonian transection group including 2 of pulmonary infection,2 of liver sectional effusion,1 of subphrenic abscess,1 of biliary leakage,1 of incisional infection,showing no statistically significant difference between the two groups (x2=0.066,P＞0.05).Patients with postoperative complications were cured and discharged after symptomatic treatment.There was no perioperative death in the two groups.(3) Follow-up:57 patients were followed up for 5-41 months,with a median time of 23 months.Two and 1 patients had tumor recurrence and hepatolithiasis recurrence in the intra-glissonian transection group,without recurrence of hepatic hemangioma or cholangiocarcinoma.Five patients had tumor recurrence in the intra-glissonian transection group,without recurrence of hepatic hemangioma,hepatolithiasis or cholangiocarcinoma.The disease recurrence rate was 13.6％ (3/22) and 14.3％(5/35) in the extra-glissonian transection group and intra-glissonian transection group,respectively,showing no statistically significant difference between the two groups (x2 =0.104,P＞0.05).Conclusions Extraglissonian pedicle transection approach guided by arantius' ligament in laparoscopic left hemihepatectomy is feasible and effective,which can control hepatic blood inflow of left liver,simplify the surgery procedure and shorten dissection time of left pedicle,in order to save operation time and reduce volume of intraoperative blood loss.

Objective To evaluate biomechanical properties of the personalized titanium alloy short femoral prosthesis by finite element analysis. Methods Based on the validated femoral finite element model, the base of the femoral neck was simulated, and by inserting different short femoral prostheses, four total hip replacement (THR) models, namely, the SMF stem model (Model A), BE1 stem model (Model B), MINI stem model (Model C) and personalized stem model (Model D) were established, respectively. The same loads and constraints were applied to four groups of models, and the von Mises stress distribution and deformation were calculated and analyzed, so as to compare mechanical stability of each model. Results The deformation of all THR models was smaller than that of the femur model under physiological state. The deformation of Model B was close to that of Model C, and the deformation of Model A was close to that of Model D. The peak stress of Model C was higher than that of the other 3 models, reaching 9555 MPa. The overall stress trend was Model C > Model B > Model D> Model A > Model under physiological state. Conclusions The peak stress, stress distribution of personalized short femoral stem were similar to that of SMF stem, with reasonable stress distribution, small stress shielding of the proximal femur, minimum overall deformation and shear stress of the prosthesis, and its effectiveness and stability could meet the requirements of human biomechanics, which could provide references for joint surgeons and prosthesis researchers.