Objective To evaluate the correlation between human serum S100A12 level and severity of acute pancreatitis (AP).Methods Serum S100A12 were tested in 64 AP patients in 24 hours after the onset.S 100A12 levels was compared to the severity of AP,and the area under the curve (AUC) of the receiver operating characteristic curve(ROC) of serum S100A12 levels for estimating the severity of AP were made and compared with laboratory parameters and APACHE-Ⅱ,Ranson' s scoring system.Results S100A12 levels in early AP patients were higher than healthy controls (P ＜ 0.05).S100A12 levels increased and correlated with MCTSI scores:patients scored 7-8 ＞ patients scored 4-6 ＞patients scored less than 4 (P ＜ 0.01).S100A 12 levels increased with organ failure (P ＜ 0.01).The AUC of S100A12 in 24 hours after onset for distinguishing MAP between MSAP and SAP was 0.80,cut-off point was 61.83 ng/ml,sensitivity was 70.01％ and the specificity was 73.52％.Serum S100A12 levels were higher in SAP than in MSAP(P =0.01).The AUC of S100A12 in early AP for distinguishing between MSAP and SAP was 0.84,cut-off point was 285.32 ng/ml,the sensitivity was 76.94％ and the specificity was 94.12％,Youden index was 71.00％,positive likelihood ratio was 13.00,negative likelihood ratio was 0.20,the diagnostic performance was better than APACHE-Ⅱ,Ranson and Marshall scoring systems and serum CRP concentration.Conclusions Human serum S100A12 levels elevated at early stage of AP.S100A12 ＞285.32 ng/ml represents high risk of SAP,which is more sensitive and accurate than APACHE-Ⅱ and Marshall scoring system.

OBJECTIVE:To study the effects of rosiglitazone(RH)on body weight,FPG,FFA and other indicators in diabe-tes model rabbit. METHODS:18 rabbits were evenly randomized into control group,model group and dextran group. The latter 2 groups were given alloxan intravenously to induce diabetes model. 3 groups were given RH(0.5 mg/kg)intragastrically,and dex-tran group was additionally given dextran 40 glucose injection(5 ml/kg)intravenously,once a day,for consecutive 3 weeks. Body weight,serum level of FPG,FFA,AngⅡ and NO were determined before and after medication. RESULTS:Compared with be-fore medication,body weight of rabbits in control group were increased after medication,while the levels of FFA and AngⅡ were decreased;the levels of FPG and FFA were decreased in model group;body weight of rabbits were decreased in dextran group af-ter medication,with statistical significance (P<0.01 or P<0.05);other indicators had no statistically significant difference (P>0.05). The level of FFA in dextran group was higher than in model group after medication,with statistical significance(P<0.01). CONCLUSIONS:Rosiglitazone can lead to weight gain by a mechanism which reduce the level of FFA.

OBJECTIVE: To investigate the analeptic action of Xingnaojing injection(XNJI) in patients undergoing total intravenous anesthesia and the possible mechanism.METHODS: 60 patients undergoing selective abdominal operation with tracheal intubation(scored grade Ⅰ or grade Ⅱ using ASA score) were transferred to post-anesthctic ICU(PACU) after surgery and randomly divided into two groups of 30 each: X group(XNJI 0.5 mL?kg-1) and C group(control group).The X group received XNJI(0.5 mL?kg-1) by drip infusion within 10 minutes,while C group received same amount of normal saline.The vocal reaction recovery time,autonomous breath recovery time,extubation time and duration of PACU stay were recorded.The mean arterial pressure(MAP),heart rate(HR),the concentrations of Epinephrine(E),and Norepinephrine(NE) and ?-endorphin(?-EP) in arterial blood were detected at 0,5,15,30 and 45 minutes before and after medication.RESULTS: No significant differences were noted for X group in hemodynamics parameters after medication as compared with before medication,but significant differences were noted for C group at 30 min and 45 min when compared with before medication or compared with X group at the same different time points.The vocal reaction recovery time,autonomous breath recovery time,extubation time and the duration of PACU stay were all significantly shorter in X group than in C group(P

ObjectiveTo investigate the effect of intrathecal (IT) Ro25-6981 (a selective NR2B receptor antagonist) on focal cerebral ischemia-reperfusion (I/R) injury in rats.MethodsSixty healthy male SD rats weighing 280-320 g in which IT catheter was successfully implanted without complication were randomly divided into 4 groups ( n ＝ 15 each):group sham operation (group S) ; group focal cerebral I/R(group I/R) ; group I/R + Ro25-6981 (group Ro) and group I/R+ normal saline (group NS).The right middle cerebral artery was occluded for 2 h with a nylon thread with rounded tip which was inserted into right internal carotid artery and advanced cranially until resistance was met in groups I/R,Ro and NS.In group Ro Ro25-6981 100 μg/10 μl was injected IT at 0,2,23 h of reperfusion,while in group NS NS was injected IT instead of Ro25-6981.Neurological dificit was assessed and scored (0 ＝ no deficit,3 ＝ severe deficit) at 24 h of reperfusion.The infarct size was determined by 2,3,5-triphenyl tetrazolium chloride staining.ResultsIT administration of Ro25-6981 significantly reduced cerebral I/R-induced infarct sized and neurological deficit score in group Ro as compared with groups I/R and NS.ConclusionRo25-6981 injected IT can protect the brain against local cerebral I/R injury.

objective To assess the effect of aldosterone on the production of matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9)and collagen Ⅳ in culture supematants of podocytes and the possible molecular mechanisms involved in the influence of aldosterone on the synthesis and degradation of extracellular matrix produced by podocytes. Methods Podecytes were treated with aldosterone at the concentration of 10-11, 10-9, 10-7 mol/L respectively. Cultured podocytes were examined at 24, 48 and 72 hours respectively. Spironolactone, a receptor antagonist of aldosterone, was added to observe the blocking effect on aldosterone. An inhibitor of TGF-β1 receptor was used to determine whether the effect of aldosterone on podocytes were mediated through TGF-β1 system. The enzymatic activities of MMP-2 and MMP-9 were assayed by gehtin zymography. Collagen Ⅳ 0.5 chain and TGF-β1 proteins released into culture supematants were assessed by Western blot and ELISA analysis. The adhesion rate of podocytes was monitored by flow cytometry. Results Aldosterone increased the activities of MMP-2 and MMP-9 in a dose- and time-dependent manner (P<0.05). Aldosterone decreased the level of collagen Ⅳ or5 chain protein in culture supernatants (P<0.05). Meanwhile, the expression of TGF-β1 was also increased (P<0.05). Spironolactone completely abolished the above-mentioned changes(P< 0.05). Blockage of TGF-β1 signaling with SB431542 prevented the aldosterone-induced upregulation of MMP-2 and MMP-9 as well as the downregulation of the collagen Ⅳ α5 chain protein and the adhesion rate of podocytes (P<0.05). Conclusions Aldosterone increases the activities of MMP-2 and MMP-9 but decreases the expression of collagen Ⅳ α5 chain and the adhension rate of podocytes possibly via TGF-β1 signaling pathway. Such alterations may contribute to glomerular podocyte injury associated with the GBM abnormality caused by the imbalance between matrix synthesis and degradation.

Objective To observe CT features of ovarian thecofibroma and the clinical significance.Methods CT manifestations, clinical data and pathological diagnosis of 12 cases of ovarian thecofibroma proved by pathology were retrospectively analysed.Results The CT manifestation of ovarian thecofibroma was typical,which was showed as following:on one side of the attachment area tumor,single,ovoid or class circular shape,most boundary clear,equal or slightly low density solid masses,internal or boundary ar-ea accompanied by a small amount low density area,mild delay enhancement in solid ingredients or no obvious enhancement.Conclu-sion CT examination is important for qualitative diagnosis of ovarian thecofibroma and finding complications.

Objective To analyze the clinical features,methods of treatment and prognosis of primary neurogenic tumors of mediastinum in patients taking surgical intervention.Methods A database was maintained retrospectively of all patients undergoing surgery for tumor and pathologically diagnosed with primary neurogenic tumors of mediastinum,managed in the Department of Thoracic Surgery,Zhongshan Hospital,Fudan University,Shanghai between Jan.,2008 and Dec.,2014.This work analyzed retrospectively the information about clinical and imaging features,surgical techniques and outcome extracted from medical records.Results Among the 131 cases,78 cases (59.5％) were males,53 cases (40.5％) were females;72 cases were diagnosed incidentally (55.0％),while the other 59 cases (45.0 ％) suffered from different symptoms.The posterior mediastinum was the most principal location with 61 cases in the left and 69 cases in the right,and 1 case remained in the anterior mediastinum.Total 98 cases (74.8％) underwent surgeries via video-assisted thoracic surgery (VATS),5 cases (3.8％) took VATS surgery with small incision,and 28 cases (21.4％) experienced open thoracotomy,with no mortality during perioperative period.Gross total resection was obtained in 130 patients (99.2％).The remaining patient underwent a palliative resection for malignant schwannomas.Of the patients,98 cases had benign schwannomas (74.8％),24 cases had gangliocytomas (18.3％),2 cases had malignant schwannomas (1.5％),2 cases had neurofibromas (1.5％),2 cases had paragangliomas (1.5％),2 cases hadprimitive neurotodermal tumor (PNET) (1.5％) and 1 case had neuroblastomas (0.8％).All patients were followed up from 12 to 95 months with an average of 53 months.A patient with PNET died of tumor metastasis,a patient with malignant schwannomas died after palliative ectomy,and 2 cases died of other reasons.The rest survived until Jan.,2016 with tumor free.Conclusions Nearly no specific clinical symptoms occur in neurogenic tumors of mediastinum.Most of neurogenic tumors of mediastinum are benign with optimistic prognosis after surgical treatment.While malignant neurogenic tumorsusually come with poor prognosis,which places special emphasis on early diagnose together with surgical treatment.

Purpose To evaluate the myocardial perfusion in diabetes mellitus (DM) rats with insulin intervention at different times by myocardial contrast echocardiography (MCE) so as to explore the value of MCE in evaluating the treatment of diabetic cardiomyopathy (DCM).Materials and Methods In this prospective study,90 rats were randomly divided into normal control (NC) group,DM group and insulin intervention (INS) group,with 30 rats in each group.After the DM models were established,the INS group was then divided into three subgroups of A,B and C treated with insulin intervention at 0,4 and 8 weeks respectively and further treated continuously for 12 weeks.The NC and DM groups were also randomly divided into three subgroups and fed synchronously just as the INS group but without insulin intervention.At the end of 12,16 and 20 weeks after modeling,the rats in each subgroup were examined by MCE.The changes of myocardial blood volume (A),blood velocity (β) and blood flow (A×β) were analyzed,and the myocardial tissues were also collected for pathological examination.Results A,β and A×β were increased in INS group compared with DM group (P＜0.05).Compared with NC group,the values of INS group including A×β in A subgroup,A and A×β in B subgroup,A,β and A×β in C subgroup were decreased (all P＜0.05).In INS group,there was no difference in the three values of myocardial blood between A and B subgroup (P＞0.05),but A and A×β were lower in C subgroup than those in A subgroup (P＜0.05).On pathology,the thickness of capillary basement membrane of INS group improved compared with DM group;the capillary density of INS group increased compared with DM group,but there was significant difference only inA subgroup (P＜0.05).Conclusion Early insulin intervention can improve myocardial microvascular structure and increase myocardial blood flow.MCE can be used to evaluate the myocardial microcirculation of DCM rats sensitively and accurately,which can be used as an important method for early diagnosis and dynamic monitoring of DCM with clinical significance.

For rapid and accurate screening of recombinant modified vaccinia virus Ankara (rMVA) that satisfied the quality standards of clinical trials, a novel shuttle vector that can delete the marker gene automatically during virus propagation was construted: pZL-EGFP. To construct the pZL-EGFP, the original shuttle vector pSC11 was modified by replacing the LacZ marker gene with enhanced green fluorescent protein (EGFP) and then inserting homologous sequences of TKL into the flank regions of EGFP. Baby hamster kidney (BHK)-21 cells were cotransfected with pZL-EGFP and MVA, and underwent ten passages and one plaque screening to obtain the EGFP-free rMVA carrying the exogenous gene. Resulting rMVA was tested by polymerase chain reaction and western blotting to verify pZL-EGFP function. A novel shuttle vector pZL-EGFP containing an EGFP marker gene which could be deleted automatically was constructed. This gene deletion had no effect on the activities of rMVA, and the exogenous gene could be expressed stably. These results suggest that rMVA can be packaged efficiently by homologous recombination between pZL-EGFP and MVA in BHK-21 cells, and that the carried EGFP gene can be removed automatically by intramolecular homologous recombination during virus passage. Meanwhile, the gene deletion had no influence on the activities of rMVA and the expression of exogenous target gene. This study lays a solid foundation for the future research.
Animals ; Biomarkers ; Cricetinae ; Epithelial Cells ; virology ; Gene Deletion ; Genetic Engineering ; methods ; Genetic Vectors ; genetics ; metabolism ; Green Fluorescent Proteins ; genetics ; metabolism ; Humans ; Recombination, Genetic ; Vaccinia ; virology ; Vaccinia virus ; genetics ; physiology ; Virus Replication

The activity of the NK cells in patients with preeclampsia was studied to investigate the pathogenesis of preeclampsia. By using MTT and 51Cr releasing technique, the proliferation and killing ability of the NK cells in maternal and umbilical blood from preeclampsia patients (n = 18) and normal third trimester pregnant women (n = 18) were detected. The NK-92 cell line was as the positive control. The results showed that the NK cell counts of umbilical blood in preeclampsia patients and normal third trimester pregnant women were significantly greater than those of maternal blood (both P<0.05). Compared with that in normal third trimester pregnant women, the proliferative ability of the NK cells in preeclampsia patients was apparently increased (P<0.05). Compared with that in maternal blood, the proliferative ability of the NK cells in umbilical blood from both preeclampsia patients and normal third trimester pregnant women was dramatically increased. The killing ability of the NK cells in preeclampsia patients was significantly higher than that in normal third trimester pregnant women (P <0.05). It was suggested that both number and function of the NK cells in preeclampsia women were increased, and that in umbilical blood was greater than that in maternal blood, speculating that the function of the NK cells may affect the maintenance of the maternal and fetal immune tolerance during pregnancy.
Cytotoxicity, Immunologic/*immunology ; Fetal Blood/cytology ; Immune Tolerance ; Killer Cells, Natural/*immunology ; Killer Cells, Natural/pathology ; Pre-Eclampsia/blood ; Pre-Eclampsia/*immunology ; Pregnancy Trimester, Third