Objective To investigate the effects of simethicone on the quality of video capsule endoscopy (VCE) examination.Methods A prospective study was performed in 90 patients received VCE examination from February 2010 to October 2014.The randomized table was set according to different dosage of simethicone the patients received,by which patients were divided into three groups.Group 1 (35 cases) received 15 mL simethicone,group 2 (30 cases) received 30 mL simethicone and control group (25 cases) received no simethicone.The small intestinal visualization quality of VCE was scored by segments.Segment A was proximal small intestine (one hour after VCE passing pylorus).Segment B was distal small intestine (one hour before VCE passing ileocecal valve).Segment A and B were scored according to the air bubbles and degree of cleanliness.Gastric transit time,small bowel transit time and VCE completion rate were recorded.Student's t test,Mann Whitney rank sum test and chi square test were performed for statistical analysis.Results The average scores of segment A of group 1,group 2 and control group were 0.58,0.33 and 1.67,respectively,and the average socres of segment B were 0.25,0.00 and 1.17,respectively.The lesion detection rates of group 1,group 2 and control group were 68.6％ (24/35),80.0％ (24/30) and 52.0％ (13/25),respectively,and the differences was statistically significant (x2 =8.238,P=0.016).The detection rate of group 2 was significantly higher than those of group 1 and control group (x2 =7.354 and 9.349,P=0.034 and 0.005).The detection rates of small intestinal erosion of group 1,group 2 and control group were 22.9％ (8/35),70.0％ (21/30) and 32.0％ (8/25),respectively,and the differences was statistically significant (x2=8.714,P=0.013).The detection rate of group 2 was significantly higher than those of group 1 and control group (x2 =10.600 and 7.380,P=0.005 and 0.025).There was no statistically significant difference in the detection rates of ulcer,vascular malformation and protrusion among the three groups (all P＞0.05).The detection rates of lesions＜0.5 cm of group 1,group 2 and control group were 37.1％ (13/35),66.7％ (20/30) and 32.0％ (8/25),respectively,and the differences was statistically significant (x2 =8.242,P=0.016).The detection rate of group 2 was significantly higher than those of group 1 and control group (x2 =9.250 and 7.842,P =0.011 and 0.017).Conclusion Oral adminstration of 30 mL simethicone could obviously decrease air bubbles in small intestine,and increase lesion detection rate of VCE.

SUMMARY Behcet’sdisease(BD)isachronicvascularinflammatorydiseaseofunknowncauses.Itis called intestinal BD,when digestive tract is involved.To investigate small bowel feature of intestinal BD, we now report 5 intestinal BD cases undergone capsule endoscopy from December,2010 to April,2014 in Peking University People’s Hospital.General information,clinical feature and endoscopic feature were presented,and literatures were reviewed.There were 3 male and 2 female patients.Age range was from 23 to 55 years old (median age 40 years old).Disease course was from 3 days to 28 years (median course 9 years).4 patients were diagnosed as systemic BD,and the rest independent intestinal BD.4 systemic BD patients all presented as recurrent oral aphthous as initial symptom and had history of vulvar ulcer and skin lesion.They all had gastrointestinal symptoms,including retrosternal pain (2 cases),he-matochezia (3 cases),diarrhea (3 cases)and abdominal pain (2 cases).1 patient had a history of fis-tula of ileocecal junction and underwent caecectomy.5 patients all underwent whole digestive tract exami-nation by endoscopy,including gastroscopy,colonoscopy and capsule endoscopy.Except of 1 normal re-sult of colonoscopy,all endoscopy results revealed lesions.Capsule endoscopy results of all patients were abnormal.Types of small intestinal lesion were various,including ulceration,erosion,protrusion and vasculopathy.All digestive tract can be involved in BD patients.Capsule endoscopy can evaluate lesions throughout whole digestive tract,especially in small intestine.As a consequence,it is helpful to explain gastrointestinal symptom,increase early diagnostic rate.Intestinal BD (IBD)mainly involves small bow-el,and ileum is the major involved segment,not only limited in ileocecum.The updated perspective of IBD lesion distribution will contribute to differential diagnosis between IBD and Crohn’s disease.This is the first time to report capsule endoscopic feature of BD patients in China.

OBJECTIVETo evaluate the significance of extended radical resection in the treatment of pancreatic head cancer and its indication.

METHODSBetween Jan. 1995 and Dec. 1998, 56 patients with pancreatic head cancer were retrospectively reviewed, among whom 35 were treated by the Whipple operation and 21 received the extended radical resection during the same interval.

RESULTSThere was no significant difference between the mortality and morbidity rate of complication, though with more patients having higher clinical stages in the extended radical resection group. The 1-, 2- and 3-year survival rates were 84.8%, 62.8%, 39.9% in the extended radical resection group and 70.8%, 47.6%, 17.2% in the Whipple operation group with significant difference between the two groups. The total mortality rate was 51.4% in Whipple group and 42.9% in extended radical resection group with significant difference between the two. The 3-year cumulative rate of death from local recurrence decreased from 37.4% in the Whipple group to 23.8% in the extended radical operation group. Patients who survived for more than 3 years were only those in clinical stage (SC)1 in the Whipple group whereas they were found both in patients who had had CS1, CS2 lesions and also in some who had CS3 lesions in the extended radical resection group.

CONCLUSIONThe extended radical operation does benefit patients with pancreatic head carcinoma in CS1, CS2 and in a part of CS3 without too extensive exrtra-pancreatic invasion.

Aged ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Neoplasm Invasiveness ; Pancreatic Neoplasms ; mortality ; pathology ; surgery ; Retrospective Studies ; Survival Rate

OBJECTIVETo compare the effects and complications of subinguinal microscopic ligation, laparoscopic transperitoneal varicocelectomy, laparoscopic retroperitoneal varicocelectomy, open retroperitoneal high ligation, and interventional embolotherapy in the treatment of varicocele.

METHODSWe conducted a retrospective study that included 632 varicocele patients treated by subinguinal microscopic ligation (group A, n = 79), laparoscopic transperitoneal varicocelectomy (group B, n = 120), laparoscopic retroperitoneal varicocelectomy (group C, n =137), open retroperitoneal high ligation (group D, n = 283), and interventional embolotherapy (group E, n = 13). We compared the baseline and 3-month postoperative semen parameters, postoperative complications, and pregnancy rate among the five groups of patients.

RESULTSThe operation time was longer in groups A ([2.02 ± 1.25] h) and E ([2.17 ± 1.02] h) than in the other three groups, while the postoperative hospital stay was the shortest in group E ([1.1 ± 0.1] d). Intestinal injury or incision bleeding occurred intraoperatively in 2 cases in group B and 1 case in group E. Postoperative scrotal edema developed in 3.7, 17, 10, and 19% of the patients in groups A, B, C, and D, respectively, but not in group E. The rate of 1-year recurrence was the lowest in group A (1.6%) and highest in group E (22%). Sperm concentration and the percentages of progressively motile sperm and morphologically normal sperm were improved postoperatively in all the patients (P < 0. 05), but there were no statistically significant differences among the five groups either in the above three parameters or in the postoperative pregnancy rate (P > 0. 05).

CONCLUSIONIn the surgical treatment of varicocele, laparoscopic retroperitoneal approach involves short operation time and few complications, subinguinal microscopic ligation has the advantages of little injury, rapid recovery, and few complications but requires specialized microsurgical techniques, and interventional embolotherapy leaves no incision scar and needs only local anesthesia and 1-day postoperative hospital stay, which is uitable for those with a contraindication to anesthesia.

Embolization, Therapeutic ; adverse effects ; methods ; Female ; Humans ; Laparoscopy ; adverse effects ; methods ; Length of Stay ; Ligation ; adverse effects ; methods ; Male ; Operative Time ; Postoperative Complications ; Postoperative Hemorrhage ; Pregnancy ; Pregnancy Rate ; Recurrence ; Retroperitoneal Space ; Retrospective Studies ; Sperm Count ; Urogenital Surgical Procedures ; adverse effects ; Varicocele ; surgery ; Vascular Surgical Procedures ; adverse effects ; methods

One year survey on the concentrations and monthly or seasonal variations of airborne microbe in Guangzhou city were analysed and studied with JWL-IIB airborne microbial sampler. The results showed that the yearly average airborne microbe content of outdoor was 2, 298 cfu/m3, and that of indoor was 1,792 cfu/m3 in Guangzhou city. The monthly variation range of outdoor airborne microbe was from 1,073 to 4,096 cfu/m3, the highest content was 4,096 cfu/m3 in March, and the lowest content was 1,073 cfu/m3 in October. The outdoor airborne bacteria and fungi counts were the highest in spring, next in summer, lower in winter and the lowest in autumn in the four seasons . The yearly average concentrations of outdoor airborne microbe at the Garbage compression station, the business walk street, the key traffic route, the residential area, the industrial district and the garden were 4, 573, 3, 835, 1, 580, 1,413, 1, 197 and 1, 187 cfu/m3respectively; and Ones of indoor at the key traffic route, the tourist three star-route hotel and the subway station were 2,511, 1,699and 1,167 cfu/m3 respectively . The study on airborne microbe can be used for the research of health prevention and environment control measures in Guangzhou .

ObjectiveToinvestigatetheinflammatoryresponseandapoptosisof peripheral blood mononuclear cells(PBMCs) and their regulation by triptolide(TP) in IgA nephropathy(IgAN) patients.MethodsBlood samples were collected from 29 IgAN patients and 16 healthy individuals.TNF-α and IL-6 concentrations were measured by ELISA and NO concentration by Griess reagent in the plasma of samples.PBMCs were isolated from IgAN patients and cultured in vitro,and subsequently activated by PHA(10 mg/L).The cytotoxicity of different TP concentrations was assayed by MTT and two non-toxic concentrations (12.5 μg/L or 25.0 μg/L)were selected for treatment.TNF-α,IL-6 and NO concentrations were measured in the culture media collected from PBMCs cultures activated by PHA (10 mg/L) and treated with TP (12.5 μg/L or 25.0 μg/L).The PHA-activated,TP-treated cells apoptotic rate was analyzed by FACS using Annexin V-FITC staining.The expression of Bcl-2,Bax,caspase-9 and caspase-3 were detected by RT-PCR and Western blotting from lyses of PHA-activated with or without TP-treated cells.ResultsThe serum concentrations of TNF-α[(131.57±50.61) ng/L vs(30.24±18.93) ng/L,P＜0.01],IL-6[(76.36±25.21) ng/L vs(35.08±16.59) ng/L,P＜0.01] and NO[(46.36±12.93) μmol/Lvs (26.61 ±10.87) μmol/L,P＜0.01] were significantly increased in IgAN patients compared to healthy individuals.PBMCs viability in culture decreased after TP treatment in a dose-dependent manner.TP also inhibited TNF-α,IL-6 and NO levels in the media of PHA-activated PBMCs in culture and induced PBMCs apoptosis.The expression of Bcl-2 decreased markedly and Bax,caspase-9 and caspase-3 increased significantly after TP treatment (all P＜0.05).Conclusions The PBMCs from IgAN patients are in a highly activated state,and have a high apoptotic rate.TP treatment induces benificial effects in IgAN patients by inhibiting the activation of PBMCs by activating pro-apoptotic pathway.

OBJECTIVETo present a batch of data of transected pancreatic neck injuries and to sum up the experience in surgical interventions for the injuries.

METHODSWe analysed 13 patients with a transected injury to the pancreatic neck from Jan. 1995 to Dec. 2000. External drainage was performed in all patients. Pancreatoduodenectomy was conducted in 2 patients with a transected injury to the pancreatic neck associated with duodenal ruptures, and TPN was administered immediately after operation. Proximal closure of the transected margin and distal pancreaticojejunostomy was performed in 4 patients. Proximal closure of the transected margin and distal pancreaticojejunostomy plus splenectomy was performed in 7 patients associated with contusion of pancreatic body or tail plus spleen rupture.

RESULTS12 patients healed and one patient died of anesthetic accident during the course of restoration of the dislocation of his right hip joint. Complications occurred in 7 patients.

CONCLUSIONSThe operation should be performed according to the degree of the injuries and associated duodenal injuries. Routine drainage and nutrient support should be recommended.

Adolescent ; Adult ; Child ; Drainage ; Female ; Humans ; Male ; Middle Aged ; Nutritional Support ; Pancreas ; injuries ; surgery

OBJECTIVETo study the outcome of laminoforaminotomy with posterolateral discectomy for patients with lateral disc herniation at C(7)-T(1).

METHODSFrom August 2000 to August 2008, 12 patients with lateral disc herniation at C(7)-T(1) underwent posterolateral discectomy were analyzed retrospectively. Neurologic function were evaluated with the Motor Scoring System. Preoperative motor were compared with postoperative one. The unique clinical manifestation, imageology features and intraoperative findings were analyzed.

RESULTSAll these twelve patients were lateral type. All the patients showed hand intrinsic muscles atrophy and hand weakness. Nine patients had no paraesthesia. The average follow-up period was 26 months. Postoperative scores were significantly higher than preoperative ones.

CONCLUSIONSDisc herniation at C(7)-T(1) is predominantly lateral type and present C(8) nerve motor deficit (hand intrinsic muscles atrophy and hand weakness) and only minority has paraesthesia in C(8) nerve dermatome. Posterolateral cervical discectomy technique is safe and effective for patients with lateral disc herniation at C(7)-T(1).

Adult ; Cervical Vertebrae ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Displacement ; diagnosis ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Thoracic Vertebrae ; Treatment Outcome

Objective To explore the safety of collection of peripheral blood stem cells(PBSCs) from low-weight infants with osteopetrosis(OP) and its clinical significance. Methods One case of low-weight infants with OP received PBSCs collection using a continuous-flow blood cell separator,and the safety of collection process was observed.The amount of monocyte cell(MNC) and CD34+ cell were noted and its clinical significance was analyzed.Results Low-weight infants with OP could tolerate collection process,the number of collection MNC and CD34+ cells were 10.06?108/kg,2.74?106/kg.Conclusion Adequate PBSCs can be collected from OP who need not be mobilized,thus can offer backup for graft failure.PBSCs collection from low-weight infants is safe.

In this work,zinc oxide-reduced graphene oxide(ZnO-rGO)nanocomposites were fabricated using hydrothermal method,and the chemical and physical properties of the synthesized ZnO-rGO were characterized by several techniques,including X-ray diffraction and Fourier transform infrared(FT-IR)spectroscopy.A molecularly imprinted photoelectrochemical sensor based on ZnO-rGO was designed for sensitive detection of oxytetracycline(OTC).Polypyrrole(PPy)film was electropolymerized onto ZnO-rGO nanocomposites and OTC molecules were imprinted on the polymer film through hydrogen bonding.After OTC molecules were eluted,the recognition sites for OTC were left on the polymer membrane,enabling the specific detection of OTC.Linear detection of OTC was achieved in the range of 0.1-200 nmol/L with the detection limit of 0.05 nmol/L(S/N=3).The sensor was successfully applied to determination of OTC in milk and honey samples,with recoveries ranging from 95%to 107%.The developed method would provide significant reference value for effective and rapid detection of other antibiotics in the foods.