Objective To observe the safety and efficiency of two different ways of intravenous anesthesia combined with oropharyngeal airway ventilation in hysteroscope operation.Methods 40 ASA Ⅰ ～ Ⅱ patients undergoing hysteroscopy were randomly assigned into two groups,20 cases in each group.Patients in the group A,B,were administered respectively with sufentanil 0.1 μg/kg or dexmedetomidine 0.5μg/kg by micro-pump in at least 10 minutes before operation.The perioperative hemodynamic index was recorded.The different outcomes including total dose of propofol,hemodynamic changes,recovery time,postoperative uterine contraction pain and episodes of adverse actions were observed and compared.Results Compared with group A,heart rate (HR) and systolic blood pressure (SBP) were higher in group B (P ＜ 0.05).The recovery time in group A was longer than that in group B (P ＜0.05).But there were no statistical differences of the total dosage of propofol,the incidence of respiratory depression,and the incidence rate of drowsiness after operation betwween group A and group B (P ＞ 0.05).Conclusion There was safe and effective of two different ways of intravenous anesthesia combined with oropharyngeal airway ventilation in hysteroscope operation,but the dynamic index was more stable,and the recovery time was shorter in patients with lowdose dexmedetomidine.

Objective To investigate the effect of goserelin combined with marvelon in treatment of en -dometriosis(EM)and its effect on estrogen levels .Methods 120 EM patients were randomly divided into the ob-servation group(60 cases)and the control group(60 cases)according to the digital table.Two groups underwent laparoscopy .3.6 mg sustained release goserelin was injected subcutaneously from the anterior abdominal wall once every four weeks on the first time of menses recovery .The treatment continued during the following six months.The observation group were treated with marvelon on the basis of this , 1 tablet each day, 21 days of con-tinuous treatment and then began to take medicine on the 5 th day of the next menstruation during the following six months.The two groups were followed up for two years .The level of luteinizing hormone(LH), follicle-stimula-ting hormone(FSH)and estradiol(E2), the cumulative pregnancy rate, recurrence rate and peri menopausal sta-tus of the two groups were observed before and after treatment .Results The total effective rate was 96.67%and 83.33%respectively for the observation group and the control group .The difference had statistical significance (P<0.05).The level of E2, FSH, and LH at 1 month, 3 months, 6 months after treatmnet was lower than that before treatment(P<0.05).The level of E2, FSH, LH of two groups had no statistical difference (P<0.05). The cumulative pregnancy rate of the observation group was higher than that of the control group while the recur -rence rate was lower than that of the control group ( P<0.05 ) .The perimenopausal symptom score ( Kupperman score)of the two groups had no significant difference (P>0.05).Conclusion Goserelin combined with marvel-on can effectively improve the effect of laparoscopic surgery in treatment of endometriosis , lower estrogen level , improve patients'pregnancy rate , and reduce the recurrence rate .

Objective To investigate the blood glucose changes in critically ill patients taken continuous renal replacement therapy(CRRT)before treatment and at different time points after treatment. Methods Sixtyseven critically ill patients were enrolled in the study,of whom 13 cases were treated conventionally and assigned as pre-treatment control group,while the other 54 cases undertook CRRT were assigned as CRRT group. The CRRT group were further sub-divided into four groups according to CRRT time((CRRT time ＜6 h group(n = 18),CRRT time of 6 - 12 h group(n = 18),CRRT time ＞ 12 h group(n = 18);or sub-divided into two groups according to circulating blood temperature(≤ 36. 5 ℃ group(n =27)and ＞ 36. 5 ℃ group(n =27));or sub-divided into two groups by sugar substitute fluid replacement solution as the formula group(the standard level of sugar content was 6. 9 mmol/L(n = 27)and sugar-free replacement fluid group(n = 27);or sub-divided into two groups according to the Glasgow Coma score(GCS)(GCS ≤ 8 points group(n = 24)and GCS ＞ 8 group(n = 30). Blood glucose level at different time points were measured. Results The longer CRRT cycle time,lower temperature,sugar substitute fluid replacement fluid worse GCS score corresponded to more dramatic blood glucose fluctuation at different time points in CRRT group,and it took longer time for them to recover to normal blood sugar level Conclusions During the CRRT process insulin secretion was suppressed and led to increase of blood sugar. In most cases the blood glucose returns to normal after CRRT treatment over time,but a small number of cases require clinical intervention.

Objective To detect the effect of deep hypothermia on the function of mitochondria in hippocampus after global ischemia in rats and to explore the protection mechanism. Methods The animal model of cardiopulmonary bypass (CPB) was established in rats that were then randomly divided into three groups,ie,control group,normothermia ischemia group and hypothermia ischemia group,eight rats per group.The mitochondria was extracted from the hippocampus of each rats for observing the mitochondrial respiratory function,the activities of succinate dehydrogenase (SDH),the cytochrome oxidese(CCO),the lnembrane fluidity and the content of intramitochondria free calcium and MDA. Resuits The content of intramitochondria free calcium and MDA in the normothermia ischemia group was increased significantly compared to the control group and that in the hypothermia ischemia group wag decreased significantly compared with the normothermia ischemia group(P<0.05).Respiratory state Ⅲ (R3),respiratory state IV(R4),P/O ratio and oxidative phosphorylation (OPR) in the normothermia ischemia group were decreased significantly compared to the control group (P<0.05).R3,R4,P/O ratio and OPR in the hypothermia ischemia group were increased significantly compared with the normothermia ischemia group (P<0.05).Membrane fluidity in the normothermia ischemia group wag decreased significantly compared to the control group (P<0.01),while that in the hypothermia ischemia group was increased significantly compared with the normothermia ischemia group(P<0.05).The activities of SDH and CCO in the normothermia ischemia group were decreased significantly compared to the control group (P<0.01),while those in the hypothermia ischemia group were increased significantly compared with the normothermia ischemia group (P<0.05). Conclusion Profound hypothermia exerts a protective effect on the function of mitochondria in the hippocampus after global ischemia in rats.

Objective:The effects of IL-13 ( Interleukin-13 ) on SDF-1 ( Stromal cell derived factor 1 ) and EGF ( Epidermal growth factor) expression in fibroblasts co-cultured with breast cancer cells were investigated to explore the mechanism for IL-13 in the development of breast cancer.Methods:The co-culture of human breast cancer cell line MDA-MB-231 with the human skin fibroblast line CCC-ESF-1 ( ESF) was used in vitro and in tumor-burdened nude mice.The effects of IL-13 on SDF-1 and EGF expression in the co-cultured fibroblasts in vitro were analyzed using reverse transcription quantitative polymerase chain reaction ( RT-qPCR ) , flow cytometry and Western blot assay.The proliferation of the co-cultured human breast cancer cells in vitro was detected by Cell counting kit-8(CCK-8).The effects of IL-13 on SDF-1 and EGF expression in the fibroblasts of tumor tissue of tumor-burdened nude mice were analyzed using immunofluorescence and laser confocal microscope, and the tumor volumes were examined.Results: IL-13 could up-regulate SDF-1 and EGF expression in the fibroblasts co-cultured with breast cancer cells in vitro,and promoted the proliferation of the co-cultured breast cancer cells.In tumor-burdened nude mice,IL-13 enhanced SDF-1 and EGF expression of fibroblasts in tumor tissue, and accelerated tumor growth.Conclusion:IL-13 up-regulates SDF-1 and EGF expression of fibroblasts co-cultured with breast cancer cells.The molecular mechanism of promoting effect of IL-13 on breast cancer relates to SDF-1 and EGF of fibroblasts in breast cancer stroma.

To evaluate the value of the vaccinations with 3 strains of gene-deleted mutants from pseudorabies virus(PRV), PRV TK-, PRV gE-/gI- and PRV TK-/gE-/gI- after to exposure to the wild Fa strain, these mutant strains from the PVR reference isolate Fa were used to vaccinate 4 weeks old PRV-free pigs with a dosage of 105 PFU each ,and followed by nasally challenged by the parental Fa strain with a dosage of 107 PFU at 14 days post vaccination. The pathological changes, virus discharge and distribution were evaluated after vaccination and challenge. It was found that the histopathological observations in the 10 collected samples including cerebrum, cerebellum, heart, liver, lungs, spleen, kidneys, tonsils, lymph nodes and trigeminal ganglion from these 3 mutant strains showed that the rates of occurrence of pathological changes in various organs were 4/10, 3/10 and 4/10 respectively, whereas that of the positive controls were 9/10. The damage in lungs was more serious in pigs vaccinated with PRV TK-mutant and positive control in comparison with other groups of pigs inoculated, and the damages in cerebrum, cerebellum and trigeminal ganglion in positive controls were more serious than those of pigs vaccinated with the 3 gene-deleted mutants. However, the tonsils, the main organ for latent infection were damaged mildly in the pigs inoculated with these 3 gene-deleted mutants in comparison with that of the positive controls. As demonstrated by Southern blot analysis, all the vaccinated pigs could discharge viruses by secretion through nasal cavity, but the soldier pigs were not infected successively by the gene-deleted mutants and the gene-deleted mutants were also unable to establish infection in cerebrum and cerebellum. Nevertheless, they could not effectively block discharge of PRV Fa after exposure to Fa virus, but could block effectively the virulent Fa virus invading into cerebrum and cerebellum. From these observation, it is evident that the deleted mutants of the TK, gE/gI , TK/gE/gI genes can block the invasion of virulent Fa virus into cerebrum and cerebellum and lessen the damages on multiple organs or tissues ,indicating that the deleted mutant of TK/gE/gI gene may be the most promising candidate of vaccine strain for development of the commercial vaccine.

Objective To study the effects of decoy strategy targeted to NF-?B on IL-6 in rat's liver after traumatic inflammatin. Methods Ninty six Wistar rats were randomly divided into 4 groups: control group,traumatic inflammation group, decoy ODN group, and mutant decoy ODN group. Rats were killed on 3 , 6, 12, 24, 48 , and 72 h respectively, for the determination of plasma ALT. Hepatocytes were isolated and nuclear protein was extracted, DNA binding activity of NF-?B was measured by EMSA. Decoy ODN's competition inhibition effect was assayed by EMSA. IL-6 gene expression in liver tissue was assessed by RT-PCR and IL-6 protein level was determined by ELISA. Results After traumatic inflammation, DNA binding activity of NF-?B in the liver increased. IL-6 mRNA and protein level also significantly increased and was in positive correlation with the activity of NF-?B. Decoy ODN effectively inhibited the activity of NF-?B ex vivo. After using decoy ODN, IL-6 mRNA and protein levels of liver tissue significantly decreased, plasma ALT levels were also significantly decreased. Conclusions Decoy strategy targeted to NF-?B could effectively inhibit rat's liver IL-6 release by inhibiting specifically the activity of NF-?B.

Objective To determine the affinities of five oligopeptides specifically binding with DNA binding domain of NF-?B p65 subunit and identify their inhibiting effect on DNA binding activity of NF-?B. Methods By using biosensor the affinities were measured by means of kinetic analysis, and the inhibiting effects were determined by competitive ELISA. Results The results of biosensor showed that all of five oligopeptides really possessed the capability of specific interacting with NF-?B p65 subunit. The affinity constants of these oligopeptides were 2.67?10~ -7 mol/L, 9.02?10~ -6 mol/L, 1.07?10~ -6 mol/L, 8.03?10~ -6 mol/L, 9.83?10~ -7 mol/L respectively. The results of competitive ELISA indicated that five oligopeptides could inhibit NF-?B from binding with ?B motif, and their inhibiting effect depended on their concentration. Conclusion Five oligopeptides that were screened by yeast two-hybrid system method can really interact with p65, and possess the inhibiting effect on DNA binding activity of NF-?B. So it will be possible that these oligopeptides are regarded as model to design and develop novel anti-inflammatory peptide drug targeting NF-?B.

Objective To explore the application effects of intensive training in reducing the occurrence rate and frequency of pricking wound during nursing internship. Methods Quasi-experimental study with historical control study was used in this research. The 54 cases of grade 2008 undergraduate worked as intervention group with intensive training, and 53 cases of grade 2007 as control group with routine training, which were selected conveniently from a nursing school. The self-designed questionnaire of pricking wound was used to assess the occurrence rate and frequency of pricking wound. Results During eight months′ internship, occurrence rate of pricking wound in the control and intervention group were 58. 68% and 33. 33% (χ2 =6. 82, P<0. 05). The frequencies of normal pricking wound and polluted pricking in the intervention group were lower than those of the control group (t =3. 19,2. 46, respectively;P <0. 01). The nursing interns were less happened pricking in each step of practice in the intervention group ( 45. 83%) comparing with that of the control group (37. 29%), and the most frequency of polluted pricking was recapping of polluted needle, which was 46. 15% in the intervention group and 40. 00% in the control group. The highest incidence of pricking wound happened in the community in both groups. Conclusions The intensive training can decrease the occurrence rates, frequencies of pricking wound, and is a effective occupational protection education to prevent nursing interns to acquired a pricking wound.

Objective:To explore the potent effects of denatonium benzoate(DB)on Mas-related G protein-coupled receptor-B2(MrgprB2)-mediated rat mast cell degranulation.Methods:RBL-2H3 cells were treated with DB overnight,before challenged with MrgprB2 ligands substance P(SP).The release of β-hex from MrgprB2-activated RBL-2H3 was detected by substrate method.Detec-tion of LTC4,IL-6,TNF-α and cPLA2 activity were performed by ELISA.The Ca2+influx and the expression of RBL-2H3 MrgprB2 re-ceptors were measured by fluorescence assay.Results:The results showed 10 μmol/L,50 μmol/L,80 μmol/L,100 μmol/L DB treat-ments promoted β-hex and LTC4 releases from activated RBL-2H3,accompanied by increased Ca2+mobilization and cPLA2 activa-tion.DB treatments did not affect IL-6 and TNF-α LTC4 releases in MrgprB2-activated RBL-2H3,as well as the levels of MrgprB2 ex-pression in mast cells.Conclusion:Taken together,DB enhanced the MrgprB2-mediated RBL-2H3 degranulation in vitro,probably by up-regulating Ca2+mobilization in activated cells.