Objective To determine a possible role for Clara cell secretary protein(CCSP)during acute RSV infection.Method CCSP-deficient [CCSP (-/-)]and wild-type (WT) mice were intratracheally infected with RSV and the lung inflammatory response to RSV infection were assessed.Results RSV-F gene expression increased in the lungs of CCSP (-/-) mice compared to WT mice following RSV infection, consistent with increased viral persistence. Lung inflammation was significantly worsened in CCSP (-/-) mice compared to WT mice after RSV infection. Th2 cytokines and neutrophil chemokines increased in the lungs of CCSP (-/-) mice following RSV infection.Conclusion These findings suggest that lack of CCSP may promote the inflammatory and Th2 immune response to RSV infection.

0.05). The blood glucose, glycosylated hemoglobin and oxidized low density lipoprotein degrade, insulin resistance were improved in probucol group after treatment, while the adiponectin level was increased(P

OBJECTIVETo investigate the effects of peroral endoscopic myotomy(POEM) on esophageal dynamics in patients with esophageal achalasia.

METHODSFrom September 2011 to November 2011, 20 cases with esophageal achalasia received POEM at the Endoscopic Center in the Zhongshan Hospital of Fudan University. Pre-operation esophageal dynamics of all the patients were evaluated by high resolution manometry(HRM) system and 3 days after operation the test was repeated. Lower esophagus sphincter resting pressure(LESP), 4-second integrated relaxation pressure(4sIRP), lower esophagus sphincter relax rate(LESRR), lower esophagus sphincter length(LESL), and esophageal manometry were analyzed.

RESULTSAfter POEM, LESP decreased from(29.1±17.0) mm Hg to(14.6±4.9) mm Hg, and decrease rate was 49.8%(P<0.01). However, the decreases in LESRR and LESL were not statistically significant(P>0.05). Esophageal peristaltic contraction was absent in all the 20 patients preoperatively. After POEM, changes in the esophageal contraction were seen in 7 patients, and peristalsis was noticed but was below normal level. There were no significant changes in peristalsis in the remaining 13 patients.

CONCLUSIONPOEM can significantly reduce LESP and 4sIRP in patients with achalasia, but can not affect the contraction of the esophagus.

Adolescent ; Adult ; Aged ; Esophageal Achalasia ; physiopathology ; surgery ; Esophagoscopy ; methods ; Esophagus ; physiopathology ; surgery ; Female ; Humans ; Male ; Middle Aged ; Young Adult

AIMTo observe the effect of quercetin (Que) on the adhesion of platelets to cultured endothelial cells and adhesion molecule expression by human umbilical vein endothelial cells (HUVEC) and platelets.

METHODS[3H]-Adenine labeled platelets were incubated with HUVEC to investigate the effect of Que on adhesion of platelets to HUVEC. The number of platelets adhering to the HUVEC monolayer was determined by liquid scintillation spectroscopy. TNF-alpha induced HUVEC expression ICAM-1 and thrombin induced platelets expression of P-selectin were measured by flow cytometry.

RESULTSQue (0.3-2.4 mumol.L-1) was shown to inhibit the increase of P-selectin expression of thrombin activated platelets. Pretreatment of HUVEC with tumor necrosis factor (TNF-alpha) significantly increased platelets adhesion to HUVEC and the expression ICAM-1. Que (0.6-2.4 mumol.L-1) inhibited this effect of TNF-alpha in a concentration-dependent manner.

CONCLUSIONQue can inhibit the adhesion of platelets to HUVEC and the expression of adhesion molecules (P-selectin and ICAM-1).

Blood Platelets ; drug effects ; metabolism ; Cell Adhesion ; drug effects ; Cells, Cultured ; Endothelium, Vascular ; drug effects ; metabolism ; Gene Expression ; drug effects ; Humans ; Intercellular Adhesion Molecule-1 ; metabolism ; P-Selectin ; metabolism ; Quercetin ; pharmacology ; Umbilical Veins ; cytology

OBJECTIVETo explore the relationship between latex allergen and clinical presentation as well as allergenic cross-reactivity between latex and other allergens, to know the incidence of latex allergy in Chinese children and elucidate the allergenic cross-reactivity of latex with other allergens.

METHODSTotally 265 children with allergic disorders were assayed with 13 international standard allergen agents by means of SPT.

RESULTSIn 79 children with latex allergenic SPT position, 53 were boys and 26 were girls with an average age of 5.6 years, and 14 cases had episodes occurred in winter, 14 cases in spring, 24 cases in summer, and 27 cases in autumn. Of them, 66 cases presented as asthma, 5 cases atopic skin disorders, 1 case anaphylactoid purpura, 1 case hives and 6 cases only had mild cough. Statistical analysis showed that the positive percentage of the latex SPT had no obvious relation with sex and age, but was higher in summers and autumns than in winters and springs (P < 0.01). Children with allergic symptoms had higher positive rate in latex allergenic SPT than those without them, that is, the positive percentage of the latex SPT significantly increased among children presenting with some allergic symptoms, such as asthma, hives and atopic skin disorders (P < 0.01). All the children with latex allergenic SPT position had cross-reactivity with acarid allergen, 62.0% approximately 43.0% with animal protein allergens including milk, cats, shrimp, dogs, eggs in the order of decreasing cross-reaction rate, and 10.1% - 3.8% with mold and plant farina allergens. But the cross-reactivity between latex and mold or tree farina I were not statistically significant.

CONCLUSIONThirty percent of the children with allergic disorders were latex allergenic SPT positive. Latex allergenic SPT positive results were significantly correlative to allergic clinical presentation and season, while were not relative to sex and age. The cross-reactivity of latex with acarid was most common, followed by animal protein allergens, while the cross-reactivity with mold and plant farina allergen was rare.

Allergens ; immunology ; Animals ; Asthma ; immunology ; Child ; Child, Preschool ; Cross Reactions ; Female ; Humans ; Infant ; Latex Hypersensitivity ; classification ; diagnosis ; immunology ; Male ; Predictive Value of Tests ; Seasons ; Skin Tests

Objective To evaluate the clinical outcome of autologous hemopoietic stem cell transplantation (AHSCT) for hematological malignancies. Methods Data of 61 patients with hematological malignancies who underwent AHSCT in Xiangya Hospital from April 1994 to August 2008 were retrospectively analyzed. There were 30 acute non-lymphoblastic leukemias (ANLL), 25 non-Hodgkin lymphoma (NHL), 3 Hodgkin lymphoma (HL), and 3 plasmacytoma. Mel 160 mg/m2 + Ara-C 2.0/2.5 g × 2 +Cy 1.8 g/m2 × 2, or TBI 8-10 Gy + Cy 1.8 g/m2 × 2 were mainly included in pretreatment regimens. Results All patients had rapid hemopoietic reconstitution. There was one patient who died of heart failure during the transplantation process. The rate of AHSCT related death was 1.6 %. The median follow up duration was 52(2-211) months. Forty-seven of 61 patients were still alive during the analysis. The probabilities of disease free survival (DFS) at 5 years were significantly different between these two groups: (77.5±5.5) % for AHSCT groups and (31.6±7.3) % for synchronous intensive chemotherapy groups(P ＜0.01). Conclusion AHSCT can be safely performed as an important treatment constituent for hematological malignancies.

OBJECTIVEThe expression of CD25, CD45RA, CD45RO on umbilical cord blood mononuclear cells (CBMCs) and CD3(+) T lymphocytes was investigated to explore the mechanism of immunosuppressive effects of intravenous immunoglobulin on neonatal immune function.

METHODSUmbilical cord blood mononuclear cells and CD3(+) T lymphocytes isolated from 8 neonates were studied. The expression of CD25, CD45RA, CD45RO on umbilical cord blood mononuclear cells (CBMCs) and CD3(+) T lymphocytes induced with various stimuli of different combinations of IVIG and phytohemagglutinin (PHA) including (1) control group, (2) PHA activation group, (3) IVIG pre-inhibition group, (4) PHA pre-activation group, (5) PHA+IVIG group was measured with four-color immunofluorescence antibodies staining-flow cytometric technique. The results were also compared with peripheral blood mononuclear cells of 8 adults (PBMCs).

RESULTSIVIG inhibited the PHA-induced proliferation of CBMCs as reflected by the decreased expression of CD25 and CD45RO. The amounts of CD25(+) and CD4(+)CD45RO(+) CBMCs reached 77.52% +/- 2.31% and 64.29% +/- 3.09% after PHA use. But a decreased response in CD25(+) (7.66% +/- 1.20% and 7.78% +/- 1.46%) and CD4(+)CD45RO(+) CBMC (3.18% +/- 1.90% and 3.11% +/- 0.08%) was observed when IVIG was added in both IVIG pre-inhibition group and PHA+IVIG group. As compared with PBMCs, IVIG failed to induce the increase of the expression of CD45RA in CBMCs whereas CD45RA(+) PBMCs increased from 54.93% +/- 3.63% to 72.77% +/- 0.39% in IVIG pre-inhibition group. Moreover, IVIG inhibited the expression of CD25 and CD45RO on cord blood CD3(+) T lymphocytes no matter whether they were activated with PHA or not. The amounts of CD25(+) and CD4(+)CD45RO(+) CD3(+) T lymphocytes reached 97.92% +/- 2.19% and 80.41% +/- 5.57% after PHA use. But a decreased response in CD25(+) CBMCs (77.29% +/- 0.63%, 51.48% +/- 1.85% and 62.73% +/- 1.24%) and CD4(+)CD45RO(+) CD3(+) T lymphocytes (35.47% +/- 2.55%, 40.14% +/- 1.16% and 36.41% +/- 2.96%) was observed when IVIG was added in IVIG pre-inhibition group, PHA pre-activation group and PHA+IVIG group, and the degree of inhibition of IVIG on cord blood CD3(+) T lymphocytes was much lower than that of CBMCs.

CONCLUSIONSCord blood T lymphocytes activation was inhibited by IVIG through the inhibition of CD25(+) CBMCs expression and the prevention of transformation from CD4(+)CD45RA(+) cells into CD4(+)CD45RO(+) cells. This IVIG-mediated suppression of activation in cord blood T cells may be derived from the indirect effect of other immune cells or molecules other than the direct effects on T cells. IVIG failed to induce the increase of expression of CD45RA in CBMCs, which may be related to the fact that majority of CBMCs were CD45RA(+) cells, but this may not rule out that the immunosuppressive effect of IVIG could be accomplished by the increase of CD45RA(+) cells in adult peripheral blood mononuclear cells. The suppressive effect of IVIG on CD4(+)CD45RO(+) T lymphocytes may account for its inhibitory effect on immunoglobulin production of neonates' B cells. Considering that naïve CD45RA(+) cells dominate in neonates and IVIG can inhibit transformation from CD4(+)CD45RA(+) cells into CD4(+)CD45RO(+) cells, it is recommended that IVIG should be used properly in neonates, otherwise it may deteriorate their poor immune function especially when it is used for prophylaxis or as a treatment of neonatal non-infectious diseases, and its immunosuppressive action will increase the susceptibility of neonates to infection.

Adult ; CD3 Complex ; biosynthesis ; immunology ; Cell Survival ; drug effects ; Cells, Cultured ; Female ; Fetal Blood ; cytology ; immunology ; Flow Cytometry ; Humans ; Immunoglobulins, Intravenous ; administration & dosage ; adverse effects ; immunology ; Immunologic Factors ; adverse effects ; Immunosuppressive Agents ; administration & dosage ; adverse effects ; immunology ; Infant, Newborn ; Injections, Intravenous ; Interleukin-2 Receptor alpha Subunit ; biosynthesis ; immunology ; Leukocyte Common Antigens ; biosynthesis ; immunology ; Leukocytes, Mononuclear ; cytology ; drug effects ; immunology ; Lymphocytes ; cytology ; drug effects ; immunology ; Male

Objective To evaluate the risks of vaccination operation in order to provide scientific basis for policy makings of vaccination operation.Methods The risk matrix and analytic hierarchy process approach were used to evaluate the risks of vaccination operation,including the possibility,severity,risk weight,and risk level.Results Seven items for the first level and thirty one items for the second level vaccination risk factors were determined.In the first level,E level risk (Extremely serious risk ) was vaccination implementation risk,and H level risk (high risk ) was the risks of pre -notification and health education and risks of vaccine and cold chain management.Vaccination implementation risk accounted the largest weight (weight coefficient=38.95%).In second level,E level risk was three inspection and seven verification before vaccination,and H level risk were personnel professional quality,personnel responsibility,pre -inspection,informed before vaccination, vaccination route, site and dose, vaccination operation, post vaccination notification and retention,and three inspection and seven verification before vaccination,accounted the largest weight (weight coefficient=10.14%).The weight of the logical consistency of the test results were satisfactory (consistency ratio<0.1 ).Conclusion The integrated application of risk matrix and analytic hierarchy process in risk assessment of vaccination operation helps to further regulate vaccination services and has application and promotion value.

Objective To observe the urodynamic change after spinal cord injury at different levels and the relationship with neurogenic dysfunction of bladder and urethra. Methods Eighty female rats were divided into a control group (20 rats) , a suprasacral spinal cord injury group (30 rats) and a sacral spinal cord injury (30 rats). The urodynamic exam was performed with all the rats before and 20 days after the spinal cord injury model was established by surgical operation. Results The maximum bladder volume and compliance in the su- prasacral injury group were significantly less than the sacral spinal cord injury group and the control, the maxi- mum volume and compliance in sacral spinal cord injury group were significantly less than the control. The DLPP in suprasacral injury group was significantly higher than that in the sacral spinal cord injury group and the con- trol, the DLPP in sacral spinal cord injury group was significantly less than that in the control group. Conclu- sion Urodynamic study is very useful for the early diagnosis and individualized treatment of the neurogenic bladder after spinal cord injury.

OBJECTIVETo evaluate the feasibility, efficacy, and safety of metallic clips for closure of full-thickness defects in the stomach wall.

METHODSForty-eight rabbits were randomly divided into 4 groups with 12 in each group using random digits table. A 2 cm×2 cm full-thickness defect was created in the gastric body. No closure was performed in the first group; in the second group, mucosa closure with metallic clips; the third group, closure of full-thickness gastric tissue with metallic clip; the fourth group closure with 3-0 silk suture. After operation the animals were sacrificed at the third day and the seventh day. Wound healing was evaluated. Bursting pressure was recorded. HE and Masson staining was performed to inspect wound inflammation and tissue fibrosis situation.

RESULTSAfter operation all the animals in the first group died within 34 hours, while those in other groups survived. No intraperitoneal bleeding or infection were seen in the survived animals. General observation showed that the metallic closure group caused less intraperitoneal adhesions. Operative time was shorter in the second and third group compared to the fourth group [(45.8 ± 1.6) min and (42.5 ± 1.5) min vs. (48.0 ± 1.4) min, P<0.05]. The bursting pressure on the third day was lower [(36.9 ± 4.6) mm Hg and (39.8 ± 4.1) mm Hg vs. (50.5 ± 4.2) mm Hg, P<0.05]. There was no significant difference in bursting pressure on the 7th day among the three groups [(95.0 ± 7.9) mm Hg and (97.8 ± 6.8) mm Hg vs. (98.5 ± 7.0) mm Hg, P>0.05]. HE staining revealed that metal closure had a better healing and Masson staining reflected no significant difference in healing at the same time point.

CONCLUSIONSMetal clips closure full-thickness defects in the stomach, regardless in full thickness or mucosa closure, is as safe and effective as suture closure.

Animals ; Pilot Projects ; Rabbits ; Stomach ; surgery ; Surgical Instruments ; Suture Techniques ; Sutures ; Wound Healing