Objective To evaluate efficacy and safety of porcine small intestine submucosa (SIS) for the repair of severe vaginal relaxation (stage Ⅳ) in women.Methods Biological repair meshes were fixed in 18 patients with stage Ⅵ vaginal relaxation,among which anterior walls were fixed in 12 cases,posterior walls in 5 cases,and both walls in 1 patient.Patients with POP underwent vaginal vault suspension first,then patient with SUI underwent transvaginal urinary incontinence surgery.Extravesicle fascia was transversely folded and sutured with 2-0 Mousse.The pelvic arch ligament together with vesicle fascia,SIS mesh and vaginal submucosa were sutured 3 stitches per side with 1-0 Mousse.Scar tissue at posterior vaginal wall was rhombically excised followed by transverse folding constriction of the rectovaginal fascia with 2-0 Mousse.A 1-0 Mousse was then used for colpoperineoplasty by suturing ruptured superficial anal sphincter,superficial transverse perineal muscle,and bulbocavernosus muscle.Patients were followed at 2,6,and 12 months post-operatively.Unsuccessful outcome was defined as diameter of outer 1/3 of vagina greater than 3.5 cm,or vagina prolapsed beyond hymen.Results The median follow-up was 13 months.Pelvic Organ Prolapse/Urinary Incontinence/Sexual Function Short Form Questionnaire (PISQ-12) was obtained in 13 patients and the score increased was noted (P＜0.01).Pelvic floor distress inventory-short form for scoring the quality of life (PFIQ) was collected from 18 patients and the score decreased was noted (P＜0.01).Pelvic floor impact questionnaire (PFIQ-7) was gathered in 18 patients and the score decreased was noted (P＜ 0.01).One unsuccessful case with stage Ⅱ anterior vaginal wall prolapse who underwent posterior vaginal wall fixed with patch ended with a diameter of outer 1/3 of vagina greater than 4.0 cm post-operation.Severe complications like infection,rosion,rejection or SUI were not noticed in any case.Conclusions The anatomical repair of pelvic floor is the most effective modality for vaginal rejuvenation.Adjunct SIS can enhance vaginal elasticity,reduce scar formation and recurrence,particularly.

Objective To study the relationship between white blood cell(WBC) count and cardiac events in acute ST-elevation myocardial infarction(STEMI) patients treated with reperfusion in the early stage. Methods Two hundred and thirty-five patients with acute STEMI were divided into two groups:percutaneous coronary intervention group (PCI group, 97 patients) and thrombosis therapy group (138 patients). WBC count and cardiac events of the two groups before and after treatment (3 h and the second day and the third day) were recorded and compared. Results The level of WBC count had no changes in two groups before and after treatment in first 3 h (P>0.05) , while the level of WBC count was significantly decreased, and the level of WBC count was significantly lower in PCI group than that in thrombosis therapy group (P<0.05). The rate of no cardiac events and two cardiac events in two groups has no significant differences (P > 0.05). The rate of one cardiac events in PCI group was significantly higher than that in thrombosis therapy group (P<0.05). The rate of three cardiac events in PCI group was significantly lower than that in thrombosis therapy group (P<0.05). WBC count had a positive correlation with cardiac events rate (r = 0.231, P < 0.05). Conclusions Primary percutaneous coronary intervention decreases WBC count and cardiac events rate. In patients with acute myocardial infarction, level of WBC count has positive relationship with cardiac events.

BACKGROUND: Immune tolerance is regarded as the most effective measure to overcome rejection. For the past few years, the important effect of immature dendritic cells (imDCs) on immune tolerance has drawn close attention. OBJECTIVE: To study the effect of imDCs treated with tacrolimus (FK506) on imlnune tolerance in rat allograft organ transplantation and to investigate the mechanism of immune tolerance induced by imDCs. DESIGN: A randomized and controlled animal experiment. MATERIALS: The experiment was carried out at the Experimental Animal Center, the Affiliated Hospital of Medical College. Qingdao University from April 2006 to December 2006.Cervical heart transplantations were performed in which 45Wister rats were used as donors and45 SD rats as allograft recipients. The ratswere randomly divided into three groups with 15 for each. METHODS: Normal sodium, imDes. and imDCs treated with FK506 were injected via vena caudalis seven. days before the operations respectively. Mixed lymphocyte reaction (MLR) was meas ured on SD, Wistar, and Lewis rats. MAIN OUTCOME MEASURES: Heart allografi survival was monitored and one-way MLR, heart pathology and the levels of interleukin-2(IL-2),IL-4,IL-10,and interferon-Y(IFN-Y)in the serum were detected. RESULTS: In treatment group without FK506.heart allografl survival were prolonged after imDC injection(P＜0.01);while their survival were prolonged further in treatment group with FK506(P＜0.05).MLR showed that the tolerance was donor specific. Analysis of variance showed that tere was high significant difference for serum concentrations of IL-2,IFN-Y,IL-4,and IL-10 in the three groups(P＜0.01).The concentrations of IL-2 and IFN-Y expressing on Th1 were lower. and that of IL-4 and IL-10 expressing on Th2 were obviously higher in the latter two groups. CONCLUSION: ImDCs can induce immune tolerance in rat heterotopic heart transplantation successfully; ImDCs treated with FK506 can enhance the tolerance which is donor specific.ImDCs may induce the immnune tolerance bymeans of modifying the immune response type of T cells (immune deflection from Th1 to Th2), mediating the generation of regulatory T cells (T-reg)and inducing T cells disenabling.

Objective To reproduce a pulmonary carcinoma model by injecting VX2 tumor tissue block suspension into rabbits' lung,and to compare the result with that of injecting VX2 tumor cells suspension.Methods A total of 50 New Zealand white rabbits were divided into two groups randomly with 25 in each.The VX2 tumor tissue block suspension and cell suspension were injected respectively into the right lower lung of each rabbit in two groups.The growth and metastasis of tumor in the thorax were observed with CT scan.The general condition of the animals was observed as well.Results The pathological pictures of the VX2 tumors were the same in two groups.The ratio of successful transplantation was 100% in the tissue block suspension group,while it was 48% in the cells suspension group,a remarkable difference in the success rate of tumor transplantation was found between the two methods(P

According to that Y-chromosomal sequence in characterised by Y-specific repeat DNA family (DYZ1 ), which contain 800-5000 copies, a pair of primers Y3, Y4 is designed to amplify their 446bp long of specific DNA segment by polymerase chain reaction (PCR), so as to detect male fetal cells in materal blood. In this paper male fetal cells in maternal blood can be detected by PCR amplification of unpurified DNA from maternal peripheral blood during various stages of gestation (early, middle, late). Compared with villi, ammotic fluid and deliverd neonate sex their coincident rate are 93%. 100%, 87. 5% respectively among three periods. It is revealed that noninvasive examining fetal cells from peripheral blood of pregnant women for diagnosis of sex-linked inherited diseases is significant valuable.

AIM To explore the effect of tacrolimus on maturity and allostimulatory activity of cultured dendritic cells (DC) in vitro. METHODS Twenty rats were randomly divided into 4 groups: control, tacrolimus, LPS, and tacrolimus+LPS groups. The bone marrow cells of rats were cultured with granulocyte-macrophage colony-stimulating factors and interleukin-4 (IL-4) for 6 d and the DC which adhered to the wall were harvested. No other extraneous reagents were used in control group. Tacrolimus 10 μg·L-1 was added to tacrolimus group at the beginning of culture. Lipopolysaccarides (LPS) 100 μg·L-1 were administered 18 h beforeharvest in LPS group. In tacrolimus+LPS group, tacrolimus and LPS were used in accordance with tacrolimus and LPS groups. The immunophenotypes of DC were analyzed with flow cytometry and the level of IL-12 secreted by DC was detected by ELISA. The allostimulatory activity of DC on allogeneic T cells was assessed with mixed lymphocyte reaction. RESULTS Compared with control group, LPS increased CD80 and CD86 expressions, IL-12 secretion and allostimulatory activities of DC. Compared with control and LPS groups, tacrolimus cut down the expressions of CD80 and CD86, decreased the secretion of IL-12 and reduced the allostimulatory activity of cultured DC. CONCLUSION Tacrolimus exerts a negative effect on the maturation and allostimulatory activity of cultured DC in vitro.

Objective To investigate the effect and molecular mechanism of cyclooxygenase-2 (COX-2) on the benign prostatic hyperplasia (BPH) in rat model. Methods Thirty-six SD rats were randomly divided into 3 groups:normal control (group A,n=12),BPH model (group B,n=12) and BPH+selective COX-2 inhibitor celecoxib (group C,n=12). At the 5th week after treatment, the weight of the prostates was measured, and the morphological changes were examined under light microscope.Detection of ki-67 and TUNEL in prostatic epithelial and stromal cells was undertaken to assess the proliferation and apoptosis status.The protein and mRNA expression of COX-2,epidermal growth factor (EGF),basic fibroblast growth factor (bFGF) and transforming growth factor-?1 (TGF-?1) were analyzed by means of immunohistochemisty and RT-PCR. Results The prostate index [prostate wet weight (mg)/rat body weight (g)] of group B was significantly higher compared with those in groups A and C (1.88?0.17 vs 1.70?0.09 and 1.74?0.16,P0.05). Conclusions The increased expression of COX-2 may play an important role in the pathogenesis of BPH by modulating the expression of growth factors and affecting the proliferation and apoptosis of prostate cells.

Objective To investigate the efficacy of Saxagliptin on the glucose and lipids metabolism and adipokines levels in diet-induced insulin resistance rat,and to explore the regulatory mechanism of saxagliptin in insulin resistance.Methods 36 4-week-old male Wistar rats were randomly divided into two groups:control group (n=12) and high-glucose and fat diet group(HF,n =24).The HF rats were randomly divided into two subgroups:HF group and saxagliptin group,and continued the treatment for 8 weeks.Levels of blood glucose,insulin,triglyceride (TG),total cholesterol (TC),TNF-α and adiponectin were determined.Results After four months,serum levels of fasting glucose,insulin,TG,TC were significantly increased in HF group as compared with control group [(7.07±1.61) mmol/L vs.(5.10±0.44) mmol/L,(23.70±7.37) mU/L vs.(19.35 ± 6.38) mU/L],[(3.21± 1.44) mmol/L vs.(0.83 ± 0.39) mmol/L,(3.04 ± 1.62) mmol/L vs.(1.14±0.24) mmol/L,all P＜0.05],and were all decreased after the treatment of saxagliptin.The glucose infusion rate was lower in HF group than in control group and was higher in saxagliptin group than in HF group [(18.80±1.57) mg · kg-1 · min-1 vs.(24.31±2.65) mg · kg 1 · min 1,(21.45 ±1.80) mg· kg-1 · min-1 vs.(18.80±1.57) mg· kg 1 · min-1,P＜0.01 or 0.05].Compared with the control group,serum THF-α was higher and adiponectin level was lower in HF group [(1.38 ±0.18) μg/L vs.(2.33±0.21)μg/L,(2.65±0.29) mg/L vs.(1.38±0.20)mg/L,both P＜0.01].Saxagliptin can significantly increase the serum level of adiponectin and decrease the level of TNF-α in HF group (P＜0.01 or 0.05).Conclusions Saxagliptin treatment can improve high-fat dietinduced insulin resistance,decrease blood lipids levels and regulate the levels of adipokines in HF rats.

Objective To study the effect and its possible mechanism of p66shc on endothelial dysfunction induced by hydrogen peroxide(H2O2).Methods Human umbilical vein endothelial cells (HUVEC) were used and cultured.H UVEC cells were untreated(control group)or treated with four groups of H2O2,H2O2 plus protein kinase C (PKC) inhibitors,H2O2 plus PKC activator,H2O2 plus P38 inhibitor for 30 minutes respectively,and cells were collected after 24 hours.The apoptosis,viability,proliferation of HUVEC were detected with immune fluorescent staining,MTT and Ki-67 respectively.P66shc and ser36 p66shc (p-p66shc)protein expressions were assessed using Western blotting.P66shc mRNA expression was measured with real-time quantitative polymerase chain reaction (RT-PCR).Results H2O2 induced HUVEC dysfunction which decreased HUVEC proliferation and increased the apoptosis of HUVEC.The expressions of p66shc,p-p66shc protein and p66shc mRNA were significantly increased after treating with H2O2.PKC inhibitor inhibited a H2O2 induced HUVEC dysfunction through increasing HUVEC proliferation activity and reducing cell apoptosis.The expressions of p66shc,p-p66shc protein and p66shc mRNA were significantly decreased after treating with H2O2 plus PKC inhibitor.PKC activator enhanced H2O2-induced HUVEC dysfunction and increased the expressions of p66shc.P38 inhibitor had no obvious effect on H2O2-induced HUVEC dysfunction and the expressions of p66shc.Conclusions p66shc may play an important regulatory rote in endothelial dysfunction caused by H2O2.P66shc may regulate a H2O2-induced endothelial dysfunction through PKC signal pathway.

Objective:To investigate the relationship between levels of plasma thrombopoietin(TPO) and thrombocytopenia.Methods:Sixty-eight thrombocytopenia with different causes were injected with rhIL-11 domestically made, by 25 ?g/(kg?d) for 10 days continuously. The plasma TPO levels were determined by quantitative sandwich enzyme immunoassay technique in thrombocytopenic patients between before and after treatment.Results:(1)The serum TPO controls of patients with thrombocytopenia after acute leukemia(AL) chemotherapy were lower than normal controls. The plasma TPO levels in aplastic anemia(AA) and myelodysplastic syndrome(MDS) patients were all elevated compared to those in normal controls.The serum TPO levels in patients with idiopathic thrombocytopenic purpura(ITP) and liver cirrhosis had no difference with the normals. Bone marrow megakaryocytes(MK) count in after chemotherapy AL and AA patients were lower than those with normal serum TPO levels controls. (2)In all above patients used interleukin-11(rhIL-11), their TPO levels were close to normal in efficiency patients. On the contrary, their TPO did not change dramatic. Those react to rhIL-11, their TPO levels were inversely correlated with platelet count.Conclusion:Testing serum TPO levels would be helpful for distinguish the thrombocytopenia with different causes, and provides theorical support to patients to use rhIL-11 reasonably.