Objective To study the effect of Thy-1.1 stem cell transplantation on endothelial hyperplasia and restenosis.Methods Thirty 4-6 weeks male SD rats were sacrificed to obtain the Thy-1.1 stem cells.Carotid artery were injured by ballon in sixty female SD rat's were randomized to receive stem cell transplantation(5?10~6 Thy-1.1,n=30)or saline approach(n=30).About 5?10~6 Thy-1.1 stem cells were injected into the injured arter- y after carotid artery injury;while the control rats underwent carotid artery injury and was injected the same amount of saline.The animals were sacrificed,3,7,14,21 and 28 days after balloon denudation.The samples of carotid artery were harvested for pathological examination,RT-PCR and in situ hyhridzation(ISH)were used to detect the transplanted cells in the injured artery.Results The intimal thickness was thinner in stem cell transplantation group(I/M,Stem cell transplantation group:2.06?0.28 vs control group 2.42?0.19,P

ObjectiveTo investigate the effect of Schwann cells (SCs) transplanted into cerebral hemorrhage area on never restore in rat.MethodsSCs were expended and labeled with 5'-Bromodexyuridine (BrdU) in vitro, then transplanted into cerebral hemorrhage area of model rat. Double immunohistochemistry staining was used to detect the expression of BrdU/myelin basic protein (MBP) and BrdU/growth associated protein-43 (GAP-43) respectively.ResultsBrdU/MBP positive cells could be seen one week after transplantation and up to 13 weeks. GAP-43 positive cells appeared in 12 weeks and 13 weeks, which was more in Hippocamp.ConclusionGrafted SCs can participate in remyelination and promoter nerve restore.

ObjectiveTo compare the effects of normal saline (NS), 10% hydroxyethyl starch (HES) and hypertonic-hyperoncotic solution (HHS,7.5% NaCl/10% HES) on regional cerebral blood flow (rCBF), brain edema and blood-brain barrier (BBB) in a rat model of traumatic head injury (THI) complicate with hemorrhagic shock. Methods60 SD rats were randomized into 5 groups: sham group (n=12), model group (n=12), NS group (n=12), HES group (n=12) and HHS group (n=12). rCBF and mean arterial pressure (MAP) were determined before and after THI, hemorrhagic shock and resuscitation. Cerebral water content and Evans Blue (EB) content were assessed 3 h after resuscitation.ResultsMAP and rCBF were restored to baseline values immediately after resuscitation in all resuscitated group and began to decrease 15 min, 30 min or 45 min later, respectively(P<0.05). 3 h after resuscitation, the brain water content was higher in NS group than those in sham or HHS group(P<0.05). EB contents of injured hemispheres were higher in model and NS group than those in HES or HHS group(P<0.05). ConclusionSmall-volume resuscitation with HHS can restore MAP and rCBF, decrease brain edema and improve BBB in a rat model of THI complicate with hemorrhagic shock.

Objective To improve the understanding,the incidence and imaging findings of tuberous sclerosis complex (TSC) combined with cardiac rhabdomyomas (CRs) in fetuses and infants.Methods The imaging findings of 9 infants with TSC combined with CRs and 4 fetuses with TSC combined with CRs from our hospital between June,2006 and November,2013 were retrospectively reviewed.Results The brain MRI of 9 with TSC combined with CRs showed bilateral subependy-mal nodules,subcortical white matter and cortical tubers.Subependymal nodules were isointense or hypointense on spin-echo T1WI and hypointense or hyperintense on spin-echo T2WI.Subcortical white matter and cortical tubers were hypointense or hyperintense on T1WI and hypointense or hyperintense on T2WI.There was varying contrast enhancement.Three of 9 infants presented single cardiac tumor and 6 of 9 infants presented multiply cardiac lesions.CRs on contrast cardiac MRI showed round solid masses in ventricular septums,ventricular outflow tract,ventricle or atrial free walls.The masses were isointense relative to the cardiac muscles on T1WI,T2WI and B-TFE sequence.There was varying contrast enhancement.Four fetuses with TSC on ultrafast MRI showed bilateral multiply subependymal nodules,the nodules were isointense or hyperintense on TFE T1WI and isointense or hypointense signals on SSTSE or B-FFE sequence,Four fetuses with CRs showed isointense to hyperintense solid masses in ventricular septums on ultrafast MRI,ventricle or atrial free walls on B-FFE sequence and SSTSE sequence images.Conclusions TSC in infant and fetus is a kind of neurocutaneous syndrome,usually combines with CRs.Fetal ultrafast and routine MRI is a useful method to make a definite diagnosis for cranial and cardiac lesions.The development of MRI might improve the timeliness and accuracy of the assessment for this disease.

Objective To review retrospectively the experience of surgical treatment of Ebstein anomaly in 45 adult patients.Methods Between January 2008 and December 2011,45 adult patients underwent surgery for Ebstein anomaly.There were 14 male and 31 female patients aged 18 to 61 years (mean,39 years).The main symptoms included chest tightness,shortness of breath,palpitation.25 patients had cyanosis,while 6 patients with Wolff-Parkinson-White syndrome.Preoperative echocardiography: The septal downward from 2.5 cm to 7.5 cm,average 4.2 cm; the posterior leaflet downward 3.0 cm to 8.0cm,average 5.1 cm.Tricuspid incompetence was moderate in 6 patients and severe in 29.According to Carpentier classification,5 cases of type A,30 type B,type C in 6 cases.Preoperative New York Heart Association(NYHA) functional class Ⅱin 14 cases,Ⅲ 30 cases,Ⅳ in 1 cases.Surgical procedures included modified Danielson's in 15 patients,modified Carpentier's in 23,and 7 patients underwent tricuspid valve replacement(incloud 4 secondary operations).The ratio of tricuspid valve repair was 84.4％.Autologous pericardium patch was used to reconstruct the septal and posterior leaflets in 5 cases.Intraoperative use of annuloplasty rings in 21 cases.Results There were 2 hospital deaths with a postoperative mortality of 4.4％.The main causes of death were low cardiac output and right heart failure.Operation to discharge time was (8.0 ± 3.8)days.The follow up time was 2 to 46 months.Echocardiography examination: Within the 32 patients of severe tricuspid regurgitation before tricuspid valve plasty,16 patients’ tricuspid regurgitation disappeared,13 patients with mild regurgitation,3 moderate regurgitation.Within 5 patients of moderate tricuspid regurgitation before tricuspid valve plasty,4 cases tricuspid regurgitation disappeared after operation,1 case tricuspid valve mild regurgitation.Tricuspid valve leaflets were at normal levels,the atrialized portion of the ventricular disappeared.The heart function improved to be NYHA class Ⅰ to Ⅱ in 95 ％ of the survived patients.Conclusion Operative method of Ebstein anomaly sould be selected according to the type of pathoanatomies.Tricuspid valve repair should be performed to the best of our ability.

Objective:To study the application of HL-60 monocyte activation test in the pyrogen detection of vaccines. Methods:HL-60 cells were incubated with the standard pyrogen(endotoxin,zymosan and lipoteichoic acid)solution and the sample solution at different concentrations,and then IL-6 level was detected using ELISA kit. According to the concentration of standard pyrogen solution and the level of IL-6,the standard curve and linear relationship were obtained. Based on the IL-6 value from the sample solution,the pyrogen content of the sample was calculated. The standard pyrogen solution at middle concentration of the standard curve was used as the interference sample,and the interference assay was performed referring to the bacterial endotoxin test in Chinese pharmacopoeia. The pyrogen recovery rate and the content were detected using HL-60 / IL-6 assay in seven kinds of vaccines such as influenza vaccine(Split Virion),inactivated;hepatitis A(live)vaccine,freeze-dried;rabies vaccine(Vero Cell)for human use,freeze-dried;lyophilized human measles and rubella combined vaccine,live;measles and mumps combined vaccine, live; haemorrhagic fever with renal syndrome bivalent vaccine, inactived; group A and C meningococcal polysaccharide vaccine. Results:① The linear relationship between the pyrogen concentration and the IL-6 level was good,and R2 value was 0. 996,0. 993 and 0. 997,respectively. ② The recovery rate of pyrogen in the above vaccines ranged from 50% to 200% . ③ The endotoxin concentration of 10 batches of group A and C meningococcal polysaccharide vaccine was detected using HL-60 / IL-6 assay,and the average value of 6 batches from factory A was 134. 73 EU·ml-1 ,and that of 4 batches from factory B was 40. 75 EU·ml -1 . The pyrogen in the other vaccines was all negative. Conclusion:The HL-60 / IL-6 assay is suitable for the pyrogen detection of the seven kinds of vaccines.

Background One of the features of the pathogenesis of primary angle-closure glaucoma(PACG) is anterior synechia of peripheral iris.Goniosynechialysis and combination of phacoemulsification and goniosynechialysis have been applied for the treatment of the disease recently,but the selection of operative types has great impact on clinical efficacy.Objective This study was to investigate the long-term efficacy of goniosynechialysis and combination of phacoemulsification and goniosynechialysis for the management of chronic PACG.Methods A non-randomized clinical controlled trial was designed.This clinical trial complied with Declaration of Helsinki and was approved by Medical Ethic Committee of Nanjing Medical University.Written informed consent was obtained from each patient.One hundred and ten eyes of 110 patients with chronic PACG were assigned to the goniosynechialysis group and combined operative group from March,2008 to February,2011 in Wuxi People's Hospital.180° goniosynechialysis was performed on 34 patients in the goniosynechialysis group,and phacoemulsifieation +intraocular lens (IOL) implantation + goniosynechialysis were carried out in 78 patients of the combination operative group.All the patients were followed-up for 2 years.Vision acuity,intraocular pressure (IOP),anterior chamber depth(ACD),unltrasound biomicroscopy and perimetry were recorded and compared between before and after operation.Results No significant difference was found in vision acuity between preoperation and postoperative 2 years in the goniosynechialysis group ([0.65 ± 0.15] vs.[0.45 ± 0.15]) (t =1.57,P＞0.05),but in the combination operative group,the vision acuity was significantly different between the before and after operation ([0.25±0.15] vs.[0.85 ±0.05]) (t =9.12,P＜0.001).The lOPs at 2 years after operation were (14.2±4.1) mmHgand(13.7±4.8) mmHg,respectively in the goniosynechialysis group and combination operative group and were significantly lower than(47.2 ±6.3) mmHg and(46.9±7.0) mmHg before operation(t =4.95,P＜0.001 ;t=5.03,P＜0.001).The ACD values in the goniosynechialysis group and combination operative group were(3.38±0.02)mm and (3.54±0.03) mm 2 years after operation,which were significantly increased in comparison with (1.33 ±0.24)mm and (1.56±0.37) mm before operation(t=7.65,P＜0.001;t=6.76,P＜0.001).Conclusions Both combination of phacomulsification with goniosynechialysis or 180° goniosynechialysis are effective for the treatment of PACG.Suitable operation should be alternated depending on the indicators of PACG patients.

Objective To isolate Fusarium species from Kashin-Beck disease(KBD)area and biosynthesize cnlde T-2 toxin.Methods T-2 toxin.producing Fusarium was isolated from corns produced in KBD area and purifted.The purifted funsi were identified according to the traits of colony,appearance of thallus and characters of conidium and then weIe cultivated in sterile Corn culture media.After extraction with organic solvent and purification by silica gel chromatography column,the quality and quantity of the toxin in the extracts were estimated by thin,Layer chromatography and high-performance liquid chromatography.Results The toxin-producing strain was Fusarium tricinctum. The com cuIture media inoculated with this strain produced about 250 mg of crude T-2 toxin per kg. Conclusions This experiment has indirectly further confirmed pollution of T-2 toxin-producing Fmarium existed in

Objective To explore the high risk factors of different degrees of premature infants with bronchopulmonary dysplasia (BPD) and to provide theoretical basises for the clinical prevention of BPD.Methods The clinical datas of 64 cases patients with BPD who were diagnosed and hospitalized in Neonatology Department of Affiliated Hospital of Qingdao University from June in 2009 to March in 2016 were retrospective analyzed,from several aspects to analyze the BPD's high risk factors,such as the mother's factors,the perinatal factors,treatments after birth and complications.Results There were 27 moderate and mild cases,19 moderate cases and 18 severe cases in children who were diagnosed BPD;different degrees of BPD patients in gender,5 minute's apgar score,the repeated application of PS,long time of mechanical ventilation,high concentration of oxygen inhalation,neonatal pneumonia,blood transfusion and neonatal anemia's differences were significant in the severity of BPD difference (P =0.003,0.033,0.006,0.002,0.001,0.000,0.001,0.001,0.036,0.004).Conclusion Strengthen resuscitation in delivery room,shorten the mechanical ventilation time and reduce the high concentration oxygen inhalation,prevent and reduce the infection after delivery,reduce latrogenic blood loss and the number of blood transfusion are important measures to alleviate the severity of BPD.

A strain was isolated from internal organ of died porcine about 8 weeks with purulent pneumonia,arthritis,pyogenic arthritis and endocarditis in April 2007.Objectives of the study are to confirm the genus of the strain,pathopoiesis,and drug sensitivity.The mainly study methods:the first,the strain was identified by the phenotype and the characteristics of the biochemistry,sequence 16S rDNA genes of the strain was analyzed by molecular biology technology,finally animal experiment and drug sensitivity testing were done.The results of the phenotype and the characteristics of the biochemistry showed that it is greatly similar to Actinomyces hyovaginalis,16S rRNA sequence analysis exhibited the homology achieved to 99.2% com-pared with group III strains of Actinomyces hyovaginalis,and the phyletic evolution analysis also indicated that it has mostly relationship with group III strains of Actinomyces hyovaginalis.Animal experiment dis-covered it has highly pathogenicity to Mus musculus albus;Drug sensitivity testing showed that it is hyper-sensitive to Erycin,Gentamicin and Amikacin.So,the result of the study confirmed that the strain is Actin-omyces hyovaginalis III with the pathogenicity.