Objective:To investigate the roles of donor alveolar maerophages and the recipient circulating neutrophils in early-stage reperfusion injury of lung allograft,and to study the interaction between the 2 kinds of cells.Methods:Twenty pairs of size-and weight-matched adult mongrel dogs were randomly assigned to 4 groups:C(control),D(leukocyte-depleted blood reperfusion),M(maerophage inhibition)and DM(leukocyte-depleted plus macropbage inhibition).The 20 cases of left lung transplantations were performed by the same surgeon.All procedures were identical,except that the donors in Group M and DM received the macrophage inhibitor gadolinium chloride(14 mg/kg)intravenously 24 h before operation,and that the recipients in Group D and DM underwent initial 10 min reperfusion with leukocyte-depleted blood collected from donors'inferior vena cava. All lung allografts were reperfused for 2 h.Results:Compared with Group D and C,macrophage inhibition ameliorated PO_2/FiO_2 and mean pulmonary arterial pressure(mPAP)consistently after 30 min reperfusion in Group M and DM;the parameters of lung reperfusion injury(malonaldehyde activity,wet/dry ratio)at 120 min after reperfusion were also significantly improved(P

r study.

Aim To study the effects of telmisartan upon serum calcineurin.Methods 92 male SD rats with the same age were randomly divided into control group (N), sham operation group (S), 2K1C+distilled water group (K) and 2K1C+telmisartan group (T).S rats were performed the open-abdomen surgery without being restricted any renal artery, but the K and the T rats were restricted their left renal artery. Beginning from the third week after the surgery, the K rats started to be treated with the intragastric infusion of distilled water 10 ml·(kg·d)~(-1) , while the T rats with telmisartan 10 mg·(kg·d)~(-1) .And after being treated for 2, 4 and 8 weeks, rats were respectively measured the systolic blood pressure (SBP), the diastolic blood pressure (DBP) of the abdominal aorta. Before and after the operation, ultrasonography with probe of 7.5 MHz was used to obtain the structure and functional indexes, such as IVSd, IVSs, LVPWd, and serum calcineurin were evaluated by ELISA and colorimetric assay kit.Result Compared with the S group and the N group, ① the results of blood pressure (SBP, DBP) were significantly higher in K group (all P <0.01), after use of telmisartan, blood pressure was significantly reduced(P <0.01);② the thickness of interventricular septal and left ventricular posterior wall at the end of diastolic and systolic were significantly higher in K group (all P <0.01), after use of telmisartan, the thickness of those declined(all P <0.01);③ the level and activity of serum calcineurin were significantly higher in K group (all P <0.01), after use of telmisartan, the level and activity of calcineurin significantly fell(P <0.01).Conclusion The serum calcineurin of artery was also raised in the left ventricular remodeling. Telmisartan ameliorates ventricular remodeling effectively, which may be associated with decreasing the expression of artery serum calcineurin.

Objective:To prove the effect of PADI-4 gene in the development of rheumatoid arthritis.Methods:Four SiRNA sequences were designed for PADI-4 gene,and the SiRNAs were cloned into blank pSiRNA-hH1neo G2 vectors.The vectors were transformed into GT116 E.coli competent cells.By white-blue selection system,the right vectors were gotten.After transfection into HL-60 cells,the cells were collected on 3,5,7,10 and 14 day,the levels of PADI-4 mRNA were detected by Real-time PCR.Results:Digestion by Acc 65Ⅰand Hind Ⅲ,the recombinant expressive vector of RNA interference was obtained successfully.The PADI-4 mRNA generated by the cells transfected with the vector of SiRNAs were reduced,and the level was not change in normal cells.Conclusion:The recombinant expressive vector of RNA interference is obtained successfully and the recombinant expressive vector can affect expression of PADI-4 gene in HL-60 cells.

Objective To evaluate the sensitizations of Hydroxyethyl Starch 40 Sodium Chloride Injection . Methods Active systemic anaphylaxis ( ASA) test, internal sensitive index ' s determination and screening and Passive Cutaneous Anaphylaxis ( PCA) test are carried out .Observe the allergy safety of the samples .Results We use guinea pigs to carry on ASA test and PCA test with Hydroxyethyl Starch 40 Sodium Chloride Injection from 45 batches of 3 companies and no changes have occurred .Measuring and comparing the sensitive index of HIS ,IgG, IgM and IgE in plasma, IgM and IgE are not obvious variation;HIS and IgG positive group and negative group and sample groups are different .Conclusions It is suggestion that Hydroxyethyl Starch 40 Sodium Chloride Injection safety evaluation should include allergic reactions , HIS and IgG sensitive index monitoring in clinical application of hydroxyethyl starch .

AlM: To explore the inhibiting effect of FTY720 on corneal neovascularization ( CNV) of rat.METHODS: MTT assay and cells scratch were adopted to observe hyperplasia of human umbilical vein endothelial cells ( HUVECs ) and cell migration induced by sphingosine-1-phosphate(S1P) after using FTY720 of different concentration. The effect of FTY720 on CNV induced by S1P in a rat corneal micropocket model was detected. 30SD rats were randomly divided into group A, group B and group C with 10 rats per group. S1P and 0μg, 5μg, and 20μg FTY720 controlled-released particles were implanted into the corneal stroma. The growth of CNV and having pathological examination on 12d after the operation was observed. Findings was analyzed by one-way ANOVA.RESULTS: 10, 102 , 103 , and 104 nmol/L FTY720 and HUVECs co-incubate 72h could inhibit cell proliferation (P < 0. 01 ), 24h after the function of 10, 100nmol/L FTY720, it could inhibit S1P-induced cell migration and the ability of restricting cell proliferation and cell migration was enhanced with increasing concentration of FTY720. On 12d, after rat corneal micropocket controlled-release particles was implanted into groups A, B, C, the CNV area were respectively 10. 05±1. 19, 6. 59±0. 95, 2. 70± 0.68mm2(F=145. 155, P<0. 01), group A and group B was statistically different and this was the same case between group B and group C (P<0. 01).CONCLUSlON:FTY720 can inhibit S1P-induced corneal neovascularization.

0.05).And the increasing of weight in high protein+plus prolein jelly group was significantly higher than those of other two groups(Pa

Objective To observe the effect of liver disease special-purpose enteral nutrition preparation on protein metabolism and liver function in children with liver injury.Methods Sixty cases of severe ill with liver injury in hospital,with mean age of (7.8?6.3) years old.All patients were randomly divided into experimental group (n=30) and control group(n=30).The experimental group was treated by adding the liver disease special-purpose enteral nutrition preparation homogenized diet and control group was treated by adding entire protein entire nutrition type enteral nutrition preparation.All patients in both 2 groups were nasally fed with intestinal nutrition,which contained 418-628 kJ/(kg?d).One day before nutritional support and 14 days after nutritional support,the liver function,total serum protein,albumin,hemoglobin were recorded.SPSS 11.5 software was used to analyze the data.Results The baseline indicators were similar before nutritional supports.Fourteen days after nutritional support,alanine aminotransferase(ALT) and aspartate aminotransferase(AST) were all significantly lower in experimental group than in control group(Pa

Objective:To observe the lipid-lowering effect of different transdermal absorption enhancers applied to the herbal cake-partitioned moxibustion in hyperlipidemia model rabbits, and to explore the possible mechanism. Methods:Forty New-Zealand rabbits were randomly divided into 5 groups using the random number table method, with 8 rats in each group. Rabbits in the blank group were fed routinely with normal diet; rabbits in the other groups were fed with high-fat diet for 12 weeks to establish the hyperlipidemia model. Rabbits in the blank and the model groups were not treated. After the model was prepared, rabbits in the non-transdermal absorption enhancer group received herbal cake-partitioned moxibustion without transdermal absorption enhancer; rabbits in the laurocapram group and the borneol group received herbal cake-partitioned moxibustion with laurocapram or borneol respectively. After 4 weeks of treatment, serum was collected for enzyme-linked immunosorbent assay (ELISA), and the liver tissues were isolated for immunohistochemistry, quantitative polymerase chain reaction (qPCR) and Western-blotting (WB) detection. Results: Serum ELISA results showed that leptin was significantly decreased in the model group compared with the blank group (P＜0.05); compared with the model group, leptin was significantly increased in the non-transdermal absorption enhancer, the laurocapram and the borneol groups (all P＜0.05); compared with the non-transdermal absorption enhancer group, leptin was significantly increased in the laurocapram group and the borneol group (both P＜0.05); there was no significant difference in leptin between the laurocapram and the borneol groups (P＞0.05). The qPCR results of rabbit liver tissues showed that the mRNA expressions of leptin, Janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3) in the model group were significantly lower than those in the blank group (all P＜0.05); compared with the model group, the mRNA expressions of leptin, leptin receptor (LR), JAK2 and STAT3 in the non-transdermal absorption enhancer, the laurocapram and the borneol groups were significantly increased (all P＜0.05); compared with the non-transdermal absorption enhancer group, the mRNA expressions of leptin, LR, JAK2 and STAT3 in the laurocapram and the borneol groups were significantly increased (all P＜0.05); compared with the laurocapram group, the mRNA expressions of leptin, LR, JAK2 and STAT3 in the borneol group were significantly increased (P＜0.05). The trend of immunohistochemistry and WB detection results was basically consistent with the qPCR assay results. The immunohistochemistry and WB detection results of phosphorylated JAK2 (phospho-JAK2) and phosphorylated STAT3 (phospho-STAT3) were basically consistent with those of JAK2 and STAT3. Conclusion: The molecular expression of Leptin/JAK2/STAT3 pathway in the hyperlipidemia model rabbits was decreased. The molecular expression of Leptin/JAK2/STAT3 pathway was significantly increased after the herbal cake-partitioned moxibustion. The application of laurocapram and borneol, as transdermal absorption enhancers, in the herbal cake-partitioned moxibustion could more obviously up-regulate the factors of the Leptin/JAK2/STAT3 lipid-regulating pathway than the herbal cake-partitioned moxibustion alone.

OBJECTIVETo evaluate the efficacy and safety of heated humidified high-flow nasal cannula (HHHFNC) in preventing extubation failure in neonates.

METHODSA literature search was performed using PubMed, Cochrane Library, FMRS, and CNKI to collect the randomized controlled trials (RCTs) and quasi-RCTs which compared the clinical efficacy of HHHFNC and nasal continuous positive airway pressure (NCPAP) in preventing extubation failure in neonates. The identified studies were finally selected after full-text search and quality assessment and then subjected to a Meta analysis using RevMan 5.3.

RESULTSFive eligible trials involving 1040 neonates were included in the Meta analysis. The Meta analysis showed that there was no significant difference in treatment failure rate between the HHHFNC and the NCPAP groups. The HHHFNC group had significantly lower incidence rates of nasal trauma (OR=0.49, 95% CI: 0.34-0.71, P=0.0001) and pneumothorax (OR=0.27, 95% CI: 0.07-0.97, P=0.04) than the NCPAP group, but there were no significant differences in the duration to reach full oral feedings and the incidence rates of serious adverse events or other complications between the two groups, such as in-hospital mortality, bronchopulmonary dysplasia, intraventricular hemorrhage, necrotizing enterocolitis, and retinopathy of prematurity.

CONCLUSIONSHHHFNC is safe and effective in preventing extubation failure in neonates.

Airway Extubation ; methods ; Catheters ; Continuous Positive Airway Pressure ; methods ; Hot Temperature ; Humans ; Infant, Newborn ; Nasal Cavity ; Noninvasive Ventilation ; methods