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.

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.

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 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 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.

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.

AIM: To investigate the role of Cx43 in the myocardialization of the proximal outflow tract(OFT) septum in the mouse heart.METHODS: C57/BL6 mice of ED11.5 to 1 day after birth were used in this study,which included Cx43 knockout homozygotes((Cx43-/-)),heterozygotes((Cx43+/-)) and wildtypes((Cx43+/+)).Pathohistological analysis was used to examine the structure of the hearts.The expression of alpha-sarcomeric actin(?-SCA),active caspase-3 and activator protein-2(AP-2) were detected by immunohistochemistry.RESULTS: Most(Cx43-/-) mice died within 24 h after birth with a swelling and blockage of the conotruncal region,which led to the obstruction of OFT and enlargement of right ventricle.HE staining showed plenty of abnormal tissues in this region forming many pouches.No apparent malformations were observed in(Cx43+/-) and(Cx43+/+) mice.The expression of ?-SCA in the proximal OFT septum was delayed obviously in(Cx43-/-).The apoptotic cells existed in the proximal OFT septum of(Cx43+/+) mostly during ED12.5 to ED15.5.However,there were less apoptotic cells observed in(Cx43+/-),and few in(Cx43-/-).The expression of AP-2,marker of neural crest cells,was increased in (Cx43-/-) and abnormally located in the proximal OFT septum.CONCLUSIONS: Cx43 KO mice are characterized by hyperplasia in conotruncal region,which may be associated with the delayed myocardialization of OFT septum.The decreased apoptosis and the abnormal distribution of cardiac neural crest cells are likely to contribute to the abnormal myocardialization in mice with Cx43 defects.

Objective To investigate the diagnostic value of intraductal ultrasonography (IDUS) for unconfirmed microlithiasis under endoscopic retrograde cholangiography ( ERC). Methods The data of 22 patients who were definitely diagnosed as having microlithiasis by IDUS and endoscopic sphincterotomy (EST) from July 2007 to September 2009 were retrospectively analyzed. Microlith was defined as choledo-cholith equal to or less than 3 mm in diameter. Using IDUS plus EST findings as golden standard of bile duct microlithiasis, the accuracy of diagnosis and rate of missed diagnosis of transabdominal ultrasonography, magnetic resonance cholangiography (MRC) and ERC were evaluated and compared. Results Diagnosis rates of trans-abdominal ultrasonography, MRC and ERC for extra-hepatic duct microlithiasis were 27. 3% (6/22), 38. 5% (5/13) and 27. 3% (6/22) , respectively. Detection rates of common bile duct dilation by 3 methods were 68. 2% (15/22) , 84. 6% (11/13) and 68. 2% (15/22) , respectively. The microlithiasis in 2 patients, which manifested as repeated acute pancreatitis, were missed by transabdominal ultrasonography , MRC and ERC, and were finally confirmed by IDUS. Conclusion Sensitivity of ERC in diagnosis of extra-hepatic microlithiasis is not superior to that of transabdominal ultrasonography or MRC. IDUS is a technically easy, safe, highly sensitive and accurate procedure, which is helpful in differentiation of etiology of recurrent acute pancreatitis.