One step dot-ELISA method for the rapid determination of ABO blood groups in humam body fluids(or stains)was established using enzyme-labelled anti-A,--B and anti--H monoclonal antibody (McAb).The sample was applied on the nitrocellulose membrance as a dot. After washing, the appropriate McAb wasadded on top of the dot, and then followed by adding 3, 3'-diaminobenzidine(DAB). The brown color indi-cated the positive reaction. The ABO blood typing of 521 saliva samples including both secretor and non-se-cretor were carried out. All the results were correct. The advantages of this method are accurate, sensitive,rapid, easy to perform, as well as not time consuming. It is more sensitive than the conventional hemaggluti-naton inhibition test.

NSP4, as the diarrhea-related protein of rotavirus, is becoming an attractive candidate for vaccine development. To compare the immunogenicity of NSP4 from different genetic groups, we constructed eukaryotic expression plasmids comprising the NSP4 genes from four different genetic types using the pCI vector. The recombinant vectors were designated as pCI-97B6, pCI-97S36, pCI-97S34 and pCI-97SZ8, respectively. Following the conformation of the transient expression of the constructs in 293 cells, the plasmids were respectively subjected to the 5 round i. m. inoculation of BALB/c mice. The specific antibodies against NSP4 as well as the IgG1/IgG2a subclasses of immunoglobulin in mice sera were examined with indirect ELJSA after each immunization. The results showed that the immunization of plasmids expression NSP4s could elicit not only humoral but also cellular immunity, but the humoral immune response is dominant. There is a difference of immunogenecity among the NSP4 of different genetic type. Further studies were needed to focus on the relationship between the immunogenicity and protection effect.

Objective To investigate the different effect among ropivacaine,bupivacaine,lidocaine on analgesia after harvesting grafts from the scalp in burn patients. Methods 84 patients who need harvesting grafts from the scalp after burn were divided in 4 groups random-ly(n=21). Patients in group C hypodermically injected with saline 200 mL were control,while patients in group R injected with 0. 05% ropi-vacaine 200 mL,group B with 0. 188% bupivacaine,and group L with 0. 1% lidocaine. Motor activity assessment scale( MAAS) and visual analogue scale(VAS) were made before anesthesia(T0) and 20 min,5 h,10 h after awake of patients. VAS were made focus on head and body in part. Vital signs were also monitored and recorded for assessment of security. Results All patients in 4 groups had passed the period of operation safely. Patients in group R have better VAS than other groups. Conclusion Low concentration ropivacaine hypodermically injec-tion of head is helpful to relieve the pain after harvesting grafts from the scalp.

Objective To observe the effects of static pressure on the number of cultured retinal M?ller glial cells(RMGC)and expression of glial fibrillary acidic protein(GFAP)and heat shock protein(HSP)70 by these cells.Design Experimental study. Participants Cultured rat RMGC.Methods Rat RMGCs were cultured and identified according to previous method described by Reichenbach.These cells were treated with different static pressures and divided into 4 groups:A(1.33kPa),B(2.67kPa),C(5.33kPa)and D(10.67 kPa)while the cells without treatment was as control group(NC).The morphologies of RMGC in these groups were observed under inverted phased contrast microscope,the number of RMGC counted with conservative method and the viability were studied with trypan blue staining.The expressions of GFAP and HSP70 in RMGCs were detected with the method of western blot.Main Outcome Measures The morphologies of RMGC,cell number,cell viability.Results There were pressure-dependent changes of RMGC number. The cell number of group C and D was less than that of group NC,A and B(P＜0.01).High static pressure resulted directly in the decreased ratio of unstained RMGCs(P＜0.01).The ratio of unstained RMGCs in group C and D was less than that in group NC,A and B(P＜0.01).Many cells in group C and D were injured and the higher the pressure elevated,the more the degree of injury became.The expressions of GFAP and HSP70 in group NC were less than other pressure treated groups and the expression of GFAP in group C and D was higher than that in group A and B.There was no obvious difference between these pressure treated groups.Conclusions High static pressure could cause the injuries of RMGCs.The increased expression of GFAP and HSP70 in RMGC might be regarded as a sign of retinal injury response to high intraocular pressure.

In order to find the anti-virus constituents of Alternanthera philoxeroides (Mart.) Griseb, the investigation was carried out. The paper reported the five triterpenoid saponins isolated from n-BuOH fraction: 3-O-beta-D-glucopyranosyl (1-->3)-O-[beta-D-glucopyranosyl-oleanolic acid]-28-O-beta-D-glucuronopyranoside (1), oleanolic acid-3-O-beta-D-glucuronopyranoside (calenduloside E, 2), oleanolic acid-3-O-beta-D-glucopyranosyl-28-Obeta-D-glucopyranosyl ester (chikusetsusaponin-IVa, 3), 3-O-(6'-O-butyl-beta-D-glucuronopyranosyl)-oleanolic acid-28-O-beta-D-glucopyranosyl ester (4) and hederagenin-3-O-beta-D-glucuronopyranoside (HN-sapoins K, 5). 1 is a new compound, saponins 4 and 5 were isolated from the plant for the first time.

ObjectiveTo investigate the imaging characteristic of DW1,tumor cell apoptosis and proliferation of nasopharyngeal carcinoma (NPC) xenograft transfected hNIS gene after 131Ⅰ treatment.MethodsThe NPC xenograft models were established with CNE-2-hNIS cells(experimental group) and CNE-2 cells(control group) respectively.After i.p.injections 131Ⅰ in the experimental group and control group,the changes of xenograft tumor volume and ADC value were observed in 3,6,12,18,24 days by MR scan.The correlations of changes of ADC with pathological TUNEL,Caspase-3 immunohistochemistry of apoptosis,and Ki-67 proliferation detection were further investigated.Independent samples t-test were compared between the two groups and Pearson linear correlation analysis was used.ResultsThe tumor volume of the experimental group was significantly reduced compared with that of the control group after 131 Ⅰ treatment (t values:8.27-19.46,P ＜0.05 ).DW-MRI showed that in the 3th day after 131Ⅰ treatment,ADC values increased in the experimental group,and ADC values reached the peak in the 6th and 12th day after 131Ⅰ treatment,then ADC values were decreased. ADC values after treatment was positively correlated with apoptotic index ( r =0.72,P ＜ 0.05 ) and caspase-3 positive rate ( r =0.65,P ＜ 0.05) and there was a negative correlation with Ki-67 proliferation index ( r =- 0.71,P ＜ 0.05 ).ConclusionADC values can reflect growth inhibition of NPC xenograft transfected hNIS gene after 131 I treatment.It is possible that DWMRI techniques can be used in early non-invasively monitor the therapy effect of 131Ⅰ treatment of NPC xenografts transfected hNIS gene.

Objective To investigate the incidence of radioactivity uptake in thymus combined with serum thyroglobulin (Tg) increase in differentiated thyroid cancer (DTC) patients after high-dose 131I treatments,in order to discuss the mechanism of thymus iodine uptaking and Tg increasing.Methods Retrospective analysis of the laboratory examinations and 131Iwhole body scan (131I-WBS) images in 316 DTC patients were performed.The radioactivity uptake in thymus and the Tg level were observed.Results Among 316 patients (total 735 case-times),4 patients of 5 cases-times 131I-WBS showed radioactivity uptake in thymus,accounting for 0.68％ (5/735).All the radioactivity uptake in thymus were found by posttreatment 131I whole body scan (Rx-WBS) and after the second radioactive iodine treatment.For 1 of 4 patients,Rx-WBS still showed thymic uptake 131I after the third radioactive iodine treatment.The serum Tg increased in 3 patients (4 caestimes Rx-WBS) of radioactivity uptake in thymus with the Tg level before Rx-WBS was 13.80 μg/L,＞300.00 μg/L,16.40 μg/L,20.60μg/L,respectively.Conclusion In order to avoid the inappropriate administration of radioiodine therapy,thymic uptake should be identified carefully in DTC patients whose radioactivity uptake is only found at the upper mediastinal and combined with serum Tg increase.

80 mL/ min were 12 cases;minor lesion group(50

Objective To investigate the CT and MRI findings of inflammation and lymphadenosis of lacrimal gland and to assess their diagnostic value.Design Retrospective case series study.Participants 46 patients with inflammation or lymphadenosis of lacrimal gland.Methods CT and MRI findings were analyzed retrospectively in 46 patients with inflammation or lymphadenosis of lacrimal gland,which were confirmed by pathology or clinical follow-ups.Main Outcome Measures Configuration,signal intense(or density)and extent of lesions.Results Of the 46 patients,32 patients with inflammatory pseudotumors demonstrated enlargement of the lacrimal gland,showing homogenous moderate density on CT,isointense or hypointense signal on T_1WI and T_2WI of MRI,and marked contrast enhancement.Multiple cystic components could be seen in one case.In 4 patients with Mikulicz disease,there were bilateral diffuse enlargment of the entire glands.CT scans showed homogenous moderate density.MRI showed hypointense signal on T_1WI and T_2WI,and marked contrast enhancement.Five patients with reactive lymphoid hyperplasia demonstrated enlargement of the lacrimal gland,homogenous moderate density on CT,hypointense or isointense signal on T_1WI and T_2WI(one case was hyperintense signal on T_2WI),and marked contrast enhancement.One patient with atypical lymphoid hyperplasia demonstrated bilateral diffuse enlargment of the entire glands,and homogenous moderate density on CT.4 patients had malignant lymphomas(B-cell lymphoma 3,histocytic sarco- ma 1,all 4 patients had bilateral disease),Those patients with malignant lymphomas showed bilateral diffuse enlargment of the entire glands.Conclusions The CT and MRI findings were similar in inflammation and lymphadenosis of lacrimal gland.CT and MRI may contribute to differentiate inflammation and lymphadenosis with epithelial tumors and may demonstrate the extent of the lesion.(Oph- thalmol CHN,2007,16:308-311)

Objective:To investigate the clinical characteristics, treatment effect and prognosis of children with nearly diploid neuroblastoma (NB).Methods:A retrospective analysis of the general clinical characteristics (including age, Gender, risk grouping, location of primary tumor, etc.), laboratory test results, treatment and recent prognosis of NB children with nearly diploidy in bone marrow chromosomes by G-banding technology who admitted to Beijing Children′s Hospital, Capital Medical University from January 2015 to December 2018. Kaplan- Meier method was adopted to calculate survival rate.Univariate analysis was performed using Log- Rank test, and multivariate analysis was conducted with Cox regression model. Results:A total of 43 patients, including 27 males and 16 females, with diagnosis were included, with 14 cases in the hypodiploid group and 29 cases in the hyperdiploid group, and the median age was 35.5 months.The 43 children were all in the high-risk group of International Neuroblastoma Staging System(INSS)-Ⅳ.The primary tumors were mainly located in the retroperitoneal adrenal region (83.7%, 36/43 cases). The largest diameter of the tumors was more than 10 cm (53.5%, 23/43 cases), and often accompanied by 2 or more metastases at the time of consultation.In terms of chromosome karyotype and chromosome karyotype of 14 children in the hypodiploid group was 41-45, the most common karyotype was 45 chromosomes[9 cases(64.3%)]. Among 29 children in the hyperdiploid group of the 47 chromosome karyotypes, 11 cases were common (37.9%). Tumor markers were as follows: neuron enolase (NSE) increased in 41 cases children (95.3%) at first diagnosis, and 25 cases (58.1%)> 370 μg/L; 42 cases (97.7%)had lactate dehydrogenase (LDH). The LDH of children in the hypodiploid group was all> 500 U/L, with 1 case was> 10 000 U/L.Nine cases (20.9%) of MYCN gene were detected by fluorescence in situ hybridization (FISH). Treatment and prognosis: the total course of chemotherapy for 43 patients was 1-12, 19(44.2%) patients received autologous stem cell transplantation, 21 patients (46.5%) received postoperative or autologous radiotherapy or metaiodobenzylguanidine treatment, 28 children developed or relapsed with a median duration of 13.8 months, and 15 cases (34.9%) died.The median follow-up time of the 14 children in the hypodiploid group was 14.9 months (2-38 months), 12 cases progressed or relapsed, and 7 died.The median follow-up of 29 children in the hyperdiploid group was 20.0 months (8.1-51.6 months), with 16 patients progressed or relapsed and 8 cases died. Kaplan- Meier survival analysis illustrated that the 3-year projected event free survival (EFS) rate of 43 children was 18.4%, of which 17.1% were in the hypodiploid group and 29.8% in the hyperdiploid group. Conclusions:Preliminary analysis reveals that children with nearly diploid NB are mostly in the stage Ⅳ high-risk group over the age of 18 months, and 2 or more metastases at the time of consultation.The 3-year estimated EFS of 43 children was 18.4%, and the prognosis was worse in the hypodiploid group.