Objective To design a new frequency domain magnato-aoustic imaging system to image the conductivity of medium.Methods A continuous sine wave signal was adopted to stimulate the MAT signal. The lock-in technique was applied to measuring the amplitude and phase of the magneto-acoustic signal. The drive control program of the imaging system was designed using virtual instrument tools. The experiments were conducted on the phantom made of coper wire.Results The amplitude precision was improved up to 10-7 Pa, while the system could locate the sonic source with locating precision of millimeter.Conclusion A new magneto-acoustic imaging system is proposed with high locating precision as well as low frequency excitation, which is significative to the study on the sonic source theory and improvement of the imaging precision.

Objective To analyze the expression of serum anti M phospholipase A2 receptor (PLA2R)antibody in idiopathic membranous nephropathy (IMN),and to investigate its value in the diagnosis and evaluation of idiopathic membranous ne-phropathy.Methods One hundred and eighteen patients with biopsy-proved glomerular diseases were involved in this study, including 97 cases with IMN,21 cases with IgA nephropathy (IgAN)and 19 healthy people.ELISA was used to detect ser-um anti-PLA2R antibodies.Correlations of anti-PLA2R antibody level with laboratory parameters,including serum albumin, 24-hour urine protein of IMN patients were evaluated.Results The median of anti PLA2R antibody in IMN group,IgAN group and healthy group was 45.2(3.6~705.9)RU/ml,5.9(2.3~10.6)RU/ml and 1.2(0.6~9.3)RU/ml.The levels of serum anti PLA2R antibody in IMN group were higher than those in IgA nephropathy group and healthy control group.The difference was statistically significant (t=-5.027,-3.077;P=0.05).Among 97 cases with IMN,76 cases showed posi-tive anti-PLA2R antibodies (positive rate 78.35%).There was none patient showed positive anti-PLA2R antibody respec-tively in IgAN and healthy people.Furthermore,anti-PLA2R antibody level was negatively correlated with serum albumin (r=-0.453,P=0.000)and positively correlated with CREA,TC,ESR,24 hour urine protein (r=0.233,0.234,0.363, 0.586;P=0.004,0.217,0.021,0.000)in IMN patients.Conclusion Serum anti PLA2R antibody may be used as a IMN specific marker for the diagnosis of IMN,and it has important reference value for evaluating the severity of IMN.

Objective To improve diagnosis accuracy of pineocytoma (PC) by joint analysis of CT,MRI imaging features and differential diagnosis with other lesions in pineal region.Methods Totally 6 pineocytoma patients confirmed surgically and pathologically had their clinical history,CT and MRI data collected and analyzed on lesion morphology,cystic solid changes,existence of necrosis,complications of hemorrhage and or calcification,MRI and enhanced scan of solid component,complications with hydrocephalus and etc.Results Plain scan found 1 case of solid nodule and 5 cases of cystic-solid nodules,2 cases with clearly-bordered lesions and 4 one not as well as 4 cases with significant hydrocephalus and 2 ones with light hydrocephalus.Enhanced scan showed 5 cases of moderate to marked enhancement and one case with no obvious enhancement.CT examination proved there were 1 case of calcification and 1 case of hemorrhage.Conclusion Pineocytoma has the characteristics of benign tumor,and has to be differentiated with other tumors frequently occurring in this region in case of obvious clinical signs due to crushing brain parenchyma or blocking aqueduct cerebri by oversized lesions.

9).Renal pathology revealed 3 patients with class Ⅳ, 1 patient with class Ⅱ. Image results showed diffuse pulmonary infiltration lesions. Bronchial lavage fluid was hemorrhage. Three patients recovered after treatment with corticosteroid and intravenous cyclophosphamide therapy. Conclusions Diffuse alveolar hemorrhage is rare serious complications of lupus nephritis. Aggressive immunosuppressive therapy should be started early for a favorable outcome.

Objective To study the inhibition of AP-1 transcription factor activity by Hint1 gene over expression in HepG2 cell lines. Methods The Hintl gene was amplified, and then was inserted into the pcDNA3/HA eukaryotic expression plasmid. The constructed pHA-Hint1 plasmid was confirmed by DNA sequencing. The pHA-Hint1 was transfected into the HepG2 human hepatoma cells. Semi-quantitative RT-PCR and Western-blot were used to detecte the expression of HA-Hint1. The HepG2 cells were co-transfected with pHA-Hint1 and pAP-1/Luc luciferase reporter. At 36 h after transfection, luciferase assay system was used to detect the AP-1 transcription factor activity. Results The constructed pHA-Hint1 was confirmed by DNA sequencing, pHA-Hint1 gene transduction through lipofectine induced over-expression in HA-Hint1 mRNA (t =3.89, P<0.05) and HA-Hintl protein (t=3. 12, P<0.05). Co-transfection of Hint1 gene inhibits AP-1 luciferase activity. Cotransfection with increased concentration of a pHA-Hint1 plasmid (0 μg/ml, 0. 5 μg/ml, 1.0 μg/ml, 1.5 μg/ml, 2. 0 μg/ml) produced a concentration-dependent inhibition of AP-1 transcription factor activity. At the concentration of 1.5 μg/ml, and 2.0 μg/ml, the activity inhibition reaches significant difference ( F = 72. 009, P < 0. 05 ). Conclusion Over-expression of Hintl can, at least in part, inhibit the AP-1 transcription factor activity in HepG2 cells.

AIM: To compare the difference in serum prolactin levels and the concentrations of anti-infective factors of human colostrums between normal labor and cesarean section. METHODS: The serum prolactin levels were measured at 48 h, 96 h after parturition in 100 cases of normal labor and cesarean using radioimmunoassay. Furthermore, the levels of SIgA, IgG, IgM, C3, C4 were tested in 100 cases at the same time using the technique of immuno-turbidimetry. RESULTS: The serum prolactin levels in normal labor tested at 48 h after parturition were significantly different with that of the cesarean section group. But there was no significant difference in serum prolatin levels 96 h after parturition between the two groups. The levels of SIgA,IgG,IgM,C3 and C4 of the colostrum in the cesarean group were higher significantly than those of the normal group at 48 h after parturition. (P＜0.05 or P＜0.01). At 96 h after parturition, there was no significant difference in SIgA, IgG, IgM and C3 between the two groups except C4. CONCLUSION: At 48 h after paturition, the serum prolactin levels of normal labor group are higher than that of the cesarean section group. The concentrations of anti-infective factors (SIgA, IgG, IgM, C3 and C4) of human colostrums at 48 h after paturition in cesarean section group are higher than those of normal labor group.

The "Assessment system for spiritual civilization development of service industries in Shanghai" is called into play to guide the survey of patients' satisfaction for service centers in hospital's outpatient clinics. Survey feedback recovered is analyzed with the key driving factors analysis model and the four-quadrant analysis. This practice identified the most critical areas to improve the satisfaction for such centers, providing theoretical references for constant quality improvement in hospitals, new insights for hospital branding, and guidelines for further health reforms.

Objective To investigate current status of preschool children's social competence and its relation to tempera-ment type. Methods A total of 1 251 children participated in this study. The questionnaire was conducted and the children were assessed usinginfant-junior middle school student's ability of social life scaleandchildren's temperament scale. Results No significant gender difference was observed in total score of social competence (P>0.05). The total score of live independently was higher in girls as compared to boys (P<0.05). A significant gender difference was observed in classified scores of social competence (P<0.05). Girls with excellent or better-than-normal social competence were more than boys (P<0.05). The distribu-tion of the temperament type in preschool children were the difficult-to-raise type (8.1%), the start-slow type (15.4%), the stan-dard type (69.0%) and the easy-to-raise type (7.5%). There was statistically gender significance (P<0.05) in the distribution of the temperament types. The percentage of difficult-to-raise type was higher in girls than in boys. The percentage of easy-to-raise type was higher in boys than in girls. The total score and classified scores of social competence had significant difference among children with different temperament types (P<0.05). Conclusions There is significant diffe-rence of social competence in chil-dren with different temperament types. Corresponding educational measures according to the child's temperament may be bene-fit to the development in preschool children.

Objective To explore the expression of interferon-inducible genes (IFIG) in idiopathic inflammatory myopathies (IIM) patients and its clinical significance.Methods Peripheral blood mononuclear cells from 52 IIM patients and 20 healthy controls were extracted.The transcriptional levels of six IFIG genes:oligoadenylate synthetase 1 (OAS-1),IFN-induced protein with tetratricopeptide repeats 1(IFIT1),IFIT4,interferon-inducible-protein 44 (IFI44),radical S-adenosyl methionine domain containing protein 2 (RSAD2) and myxo-virus resistance gene 1 (MX-1) were detected by real-time polymerase chain reaction (PCR).Interferon scores were calculated and compared.The correlations between interferon scores and clinical features of IIM patients were investigated.Non-parametric Mann-Whitney and Spearman analysis were used for statistical analysis.Results In IIM patients,the transcriptional levels of OAS-1 [90.4(40.2,350.8)],IFIT1 [112.7(49.8,151.1)],IFIT4 [127.8(110.4,200.2)],IFI44 [100.3(39.5,160.7)],RSAD2 [100.9(50.2,559.2)] and MX-1 [110.7(60.3,298.9)] were greatly higher than those in healthy controls [4.5(2.1,27.8),21.5(0.4,31.4)i 21.5(0.8,51.2),5.2(0.4,27.8),27.8(17.5,33.5),25.1(15.7,31.8),respectively] (Z=-5.121,-4.359,-5.301,-4.906,-4.348,-4.151; P＜0.01).Meanwhile,interferon scores were significantly elevated in IIM patients [65.7(3.6,136.9),Z=-5.778,P＜0.01],compared with healthy controls [1.2(0.1,3.1)],especially in those with interstitial lung disease [89.3(41.9,176.7),Z=0.544,P＜0.05].Interferon scores were correlated positively with ESR (r=0.234,P＜0.05).Conclusion The mRNA levels of OAS-1,IFIT1,IFIT4,IFI44,RSAD2 and MX-1 are significantly increased in patients with IIM.Interferon score might be used as a new biomarker for IIM patients.