Objective To study the role of chromoendoscopy with toluidine blue to diagnose gastric cancer and precancerous change.Methods572 cases were randomized into two groups.288 cases in testing group took gastroscopy with 0.1% toluidine blue sprinkles,while ordinary gastroscopy was applied in 284 cases of control group.We took biopsy in all of those cases for pathology examination.The biopsy was taken from heterochrome area if heterochrome area appeared in testing group,otherwise from suspected affection.ResultsDetection rate of gastric cancer of test groups(9.72%)was higher than that of control groups(5.28%).Both of the methods were significantly different(P

Objective To know the effects of living with the elderly on nursing students' willingness engaging in aged nursing and attitude towards the elderly so as to provide references for nurturing professionals for caring for the aged.Methods 231 nursing students were surveyed.The questionnaire included four parts,general information,life experience with the elderly,willingness engaging in aged nursing,attitude towards the elderly and cognition of aging.Results 45.9 percent of the nursing students were willing to engage in aged nursing.Living with elderly and relationship with the elderly affected their willingness.Conclusions Creating more opportunities for nursing students in touch with the elderly can help nursing students to have a good impression of the elderly and stimulate them to choose aged nursing.

Objective To know the nursing students' willingness engaging in geriatric nursing and analyze affecting factors so as to provide references for nurturing professionals for caring for the aged.Methods 231 nursing students were surveyed.The questionnaire included general information,life experience with the elderly,willingness engaging in geriatric nursing,attitude towards the elderly and cognition of aging.The investigation results underwent analysis.Results Single factor analysis showed that whether ever living with the elderly (x2=6.027),time living with the elderly and relationship with the elderly (x2=4.928) influeced the nursing students' willingness engaging in geriatric nursing.Multiple correspondence analysis indicated that nursing students living with elderly more than one year and having good relationship with the elderly had positive willingness.Conclusions Geriatric nursing curriculum should be optimized and more opportunities should be created for nursing students to be in touch with the elderly.At the same time,we must pay attention to occupation guide and moral education about how to respect and care for the elderly.

BACKGROUND: Blood platelet is active commonly appeared in both acute and recovery stages in ischemic cerebral apoplexy. Cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) are closely correlated with the blood platelet function.OBJECTIVE: To observe the therapeutic effects of compound danshen drop on clinical prevention and treatment of transient cerebral ischemic attack (TIA) and the influence on serum cAMP and cGMP.DESIGN: Randomized control experiment.SETTING: Department of Neurology of Binzhou Medical College affiliatedHospitalPARTICIPANTS: Totally 180 TIA patients participated in the experiment in volunteer in the clinic of Neurological Department of Affiliated Hospital of Binzhou Medical College from September 2000 to April 2001. Based on randomized number scale, 3 groups were divided according to dosages of compound danshen drop. In 10 drops/d group, there were 60 cases, of which 35 cases were male and 25 cases female, aged varied from 50 to 70 years, averagely (54.3±7.2) years old. In 20 drops/d group, there were 60 cases, of which, 32 cases were male and 28 cases female, aged varied from 49 to 62 years, averagely (55.7±5.1) years old. In 30 drops/d group, there were 60 cases, of which, 33 cases were male and 27 cases female, aged varied from 52 to 69 years, averagely (54.9±5.5) years old.METHODS: In 10 drops/d group, the drug was given once per day, 10drops each time. In 20 drops/d group, the drug was given twice per day,10 drops each time. In 30 drops/d group, the drug was given three times per day, 10 drops each time. Four weeks after medication, 3 mL blood was collected from each patient in the morning. With radioimmunoassay, the contents of cAMP and cGMP in serum were determined. Each case was tions, gem bleeding, epistaxis, subcutaneous bleeding, mouth numbness,headache, dizziness, etc.tack: In 10 drops/d group, there were 1 case in internal carotid arterial system, 2 cases in vertebral arterial system, 1 case of cerebral infarction and 2 cases of myocardial infarction. In 20 drops/d group, it was 2, 2 and 1 cases successively and in 30 drops/d group, it was 1, 2, 1 cases succesgroup: There were 1, 2 and 4 cases of harmful accident and side effects in three groups successively, of which, peripheral numbness of mouth 1 case in 10 drops/d group, 1 case of either peripheral numbness of mouth or headache in 20 drops/d group, gastrointestinal reaction 1 case, peripheral numbness of mouth 2 cases and dizziness 1 case in 30 drops/d group.There was no gem bleeding, epistaxis and subcutaneous bleeding, and no patient was withdrawn the treatment due to above-mentioned side effects.With comparison among groups, significant difference was not indicated The contents of cAMP were (21.22±3.94), (22.5±3.67), (23.1±7.7) ng/Land cGMP were (3.67±1.18), (4.74±2.12), (4.6±0.7) ng/L successively in three groups (P ＞ 0.05).CONCLUSION: During second-grade prevention of TIA, compound danshen drop presents definite therapeutic effects, which is basically same in comparison of dosages. Simultaneously, no remarkable side effects appear.

OBJECTIVE To investigate the effect of Radix Isatidis and its constituents indigo and in?dirubin on two principal subtypes of organic cation transporters(OCT)OCT1,OCT2 in vivo in mice. METHODS Decoction of Radix Isatidis (DRI) 1.6 and 6.4 g · kg-1,granules of Radix Isatidis (GRI) 0.615 and 2.460 g·kg-1,indigo 0.008 and 0.640 mg·kg-1 and indirubin 0.0192 and 1.536 mg·kg-1 were ig given to NIH mice(60 mice per group),twice a day for 5 d. Four control groups were set up,including the vehicle of water,0.5% sodium carboxymethyl cellulose(CMC),additives of sucrose plus dextrin (1.5 g · kg-1)and positive control quinidine(0.025 g · kg-1). Sixty minutes after the last dosing,all the mice were iv given metformin(Met)5 mg·kg-1,and at 1.0,2.5,5.0,7.5,10.0 and 20.0 min after Met iv,10 mice in each group were sacrificed to collect whole blood and kidneys respectively. The right kidney was homogenized for Met accumulation test and the left one used to extract total RNA for analysis of OCT1 and OCT2 mRNA expressions by real-time PCR. The contents of Met in sera and kidneys were quantified by HPLC. Major pharmacokinetic parameters of Met in sera were analyzed by pharmacokinetic software(DAS 2.0). RESULTS There was no significant difference between water control group,0.5%CMC group and sucrose plus dextrin group in any examined item. Compared with vehicle control group (water and 0.5%CMC group),all the related pharmacokinetic parameters in DRI 6.4 g · kg- 1,GRI 2.46 g · kg-1,indigo 0.640 mg · kg-1 and indirubin 1.536 mg · kg-1 groups were changed significantly (P<0.05,P<0.01). The elimination half time (t1/2β) was prolonged 13%-97%,volume of distribution reduced by 13%-72%,clearance(Cl)reduced by 9%-65%,and the area under the concentration-time curve (AUC0-20 min) increased by 13%-135%. AUC0-20 min obtained from renal Met accumulations was significantly increased(P<0.01)while Met uptake by kidney slices was reduced(P<0.05,P<0.01). The expressions of OCT1 and OCT2 mRNA were obviously down-regulated(P<0.05,P<0.01). CONCLUSION The mouse renal OCT1 and OCT2 are significantly inhibited by DRI,GRI,indigo and indirubin. The inhibitory effect of Radix Isatidis on OCT1 and OCT2 probably arises from indigo and indirubin contained.

BACKGROUND:The phenomenon of osteoinduction by biomaterials has been proven in animal experiments. OBJECTIVE:To investigate whether the ability of a biomaterial to initiate bone formation in ectopic implantation sites improves the performance of osteoinductive biomaterial as a scaffold for tissue-engineered bone. METHODS:We compared ectopic bone formation by combining autologous adipose-derived stromal cells with an osteoinductive and a nonosteoinductive biphasic calcium phosphate ceramic to create a tissue engineering construction in the muscle of dogs. Al implants were implanted in the back muscle of 10 adult dogs for 8 weeks and 12 weeks, including osteoinductive biphasic calcium phosphate ceramic+adipose-derived stromal cells (osteoinductive complex group), osteoinductive biphasic calcium phosphate ceramic (osteoinductive broup), nonosteoinductive biphasic calcium phosphate ceramic+adipose-derived stromal cells (nonosteoinductive complex group), and nonosteoinductive biphasic calcium phosphate ceramic (nonosteoinductive group). Micro-CT analysis and histomorphometry were performed to evaluate and quantify ectopic bone formation. RESULTS AND CONCLUSION:Ectopic bone formation was visible in the osteoinductive complex group and osteoinductive group, and the former group was superior to the latter one in quality of new bone (P<0.05). However, there was no ectopic bone formation in the other two groups. Micro-CT results were consistent with the histomorphological detection. These findings indicate that osteoinductive biphasic calcium phosphate ceramic, as a kind of bone tissue engineering scaffold material, has a better osteogenic capacity, while adipose-derived mesenchymal stem cells serve as seed cells to promote the ectopic bone formation.

OBJECTIVE:To study the effects of 10 kinds of nephrotoxic TCM on three main subtypes(Oat1,Oat2 and Oat3) of kidney organic anion transporter(Oats)in mice. METHODS:A total of 1 840 SPF NIH mice were randomly divided into nor-mal control group(isovolumic pure water),probenecid group(30 kg/mg),sodium carboxymethyl cellulose(CMC)group,Pulsa-tillae radix,Corydalis rhizoma,Aconiti kusnezoffii radix,Aconiti radix,Angelicae pubescentis radix,Gleditsiae spina,Polygo-num cuspidatum,Kansui radix,Platycladi cacumen,Aucklandiae radix high and low dose groups. Mice were treated twice a day for 5 d,ig. After 1 h of the last dosing,they were iv given PAH in tail(30 mg/kg). The PAH pharmacokinetic parameters of the kidney homogenate were determined and the PAH intake in kidney tissue at the time point of 1,5,10,15 and 20 min was detect-ed. The PAH in blood was analyzed by DAS 2.0 software. The grouping and dosing were the same as before,after 1 h of the last dosing,kidney slices were made and put into PAH-buffer. The PAH intake of kidney slices was determined. RESULTS:Compared with normal control group,the t1/2β in C. rhizoma high dose group,A. kusnezoffii high and low dose groups,A. pubescentis high dose group,P. cuspidatum high and low dose groups and P. cacumen group were increased;Vd were all decreased in 10 kinds of TCM high and low dose groups;except for A. pubescentis low dose group,G. spian low dose group and K. radix low dose group, the CL was decreased and AUC0-20 min was increased in all other groups,with significant difference (P<0.01 or P<0.05). Com-pared with normal control group,the content of PAH in kidney tissue in P. radix high dose group,C. rhizoma high dose group,A. kusnezoffii high dose group,A. radix high and low dose groups,A. pubescentis high and low dose groups,G. spina high and low dose groups,P. cuspidatum high and low dose groups,K. radix high and low dose groups,P. cacumen high and low dose groups and A. radix high and low dose groups were increased,with significant difference (P<0.01 or P<0.05). Compared with normal control group,the intake of PAH in kidney slices in C. rhizoma high dose group,A. kusnezoffii high and low dose groups,G. spi-na high and low dose groups,K. radix high dose group,P. ca-cumen high and low dose groups and A. radix high dose group were decreased,with significant difference (P<0.01 or P<0.05). CONCLUSIONS:The 10 kinds of nephrotoxic TCM probably induced kidney injury through inhibiting the Oat1,Oat2 and Oat3 of Oats.

ObjectiveTo summarize the echocardiographic diagnosis, clinical classification and prognosis of different types of fetal congenital cardiac malformation (FCMH).MethodsThe echocardiography sonogram characteristics for 429 cases with FCMH were summarized and analyzed by pathological findings and postnatal following-up.ResultsThe incidence of FCMH was 1.3% (429/33 800). In one hundred and seventy-seven caese of single structure malformation, there were 5 cases of Atrial septal defect and 55 cases of interventricular septal defect (34.5%, 61/177). The others including (116 cases): 10 cases of single atrium and 34 cases of single ventricle, 20 cases of Ebstein’s anomaly, 11 cases of tricuspid atresia and 6 cases of pulmonary atresia with intact ventricular seprum, 20 cases of pulmonary stenosis, 10 cases of coarctation of aortic arch and 4 cases of interruption of aortic arch, 1 case of pulmonary artery sling. In two hundred and thirty-three cases of symphysic teratism, there were 41 cases of double-outllet right or left ventricle (17.5%, 41/233) and Tetralogy of Fallot (40 cases, 17.2%, 40/233). The others (152 cases) including: 16 cases of complete and 18 cases of corrected transposition of great arteries, 38 cases of atrioventricular septal defect, 30 cases of truncus arteriosus persistens, 8 cases of total and 10 cases of partial abnormal pulmonary venous drainage, 14 cases of hypoplastic right heart and 6 cases of left heart syndrome, 9 cases of pulmonary artery atresia with ventricular septal defect, 2 cases of plysplenia and 1 case of plenia syndrome. Nineteen cases of instructure cardiac anomalies including 16 cases of heart tumor and 3 cases of endocardial ifbroelastosis. Nine cases were missed diagnosis and 7 cases were misdiagnosis. A total of 136 cases couldn′t be cured with an unfavorable outcome. Nighty three cases with severe FCMH could be cured. Fifty four cases needed emergent treatment postnatal, and 146 cases with mild abnormality.ConclusionsFetal congenital malformation of heart diagnosed by antenatal echocardiography is valuable for guiding the clinical decision in prevetion and treatment it can also reduce perinatal mortality with congenital malformation of heart.

Objective To describe an intelligent three-dimensional technique for automatic visualization of the fetal cranial mid-sagittal view to allow for the differential diagnosis of fetal midline anomalies.Methods Two hundred and twenty pregnant women with singleton pregnancies were imaged to display the mid-sagittal view of fetal head using a new 3D program (Smart MSP) developed by our team.Results The mid-sagittal view of the fetal head was successfully visualized in 190 normal cases (95％) and 18 abnormal cases (90％) by Smart MSP program.The total successful rate was 94.5％ (208/220).Conclusions Smart MSP is a novel and feasible method for the automatic visualization of fetal cranial midsagittal plane and may become a potential tool for routinely screening the fetal midline anomalies.

Objective To evaluate the clinical significance of prenatal ultrasonography in diagnosis of retroaortic left innominate vein ( LINV ) . Methods Thirty fetus with retroaortic LINV were involved , including 17 cases of isolated retroaortic LINV and 13 cases of complicated retroaortic LINV . Three-vessel and trachea ( 3VT ) view was focused in the routine second trimester ultrasound screening to observe whether LINV existing or not . And then the transducer was rotated to the fetal sagittal view to assess the relationship between LINV and aortic arch and the convergence of left subclavian vein and left internal jugular vein into the LINV . Results The characteristic feature of retroaortic LINV was the LINV converge into right superior vena cava ( SVC) under the aortic arch ,not above the aortic arch . The most important plane to detect the retroaortic LINV was the 3VT view ,which revealed the abnormal vein lying to the left of pulmonary artery . The abnormal vein then could be traced and revealed its connection with the right SVC beneath the aortic arch on the transverse plane inferior to the 3VT view and on the fetal sagittal plane . Conclusions The whole course of retroaortic LINV can be revealed by ultrasound prenatally ,which can not only account for the abnormal vein to the left of pulmonary artery on 3VT view ,but also play an important role in surgery decision and future cardiac intervention treatment .