Objective To determine the expression of adapter protein p66Shc in mediating alveolar epithelial cells induced by hyperoxia and to explore their relationship.Methods A549 cells were cultured in vitro and divided randomly into a control group and a hyperoxia group.The hyperoxia group was exposed to a mixture of oxygen(O2,900 mL/L) and carbon dioxide(CO2,50 mL/L) for 10 min,then cultured in a closed environment.The changes in morphology were observed under inverted microscope after exposure to oxygen or air for 24 hours.The cell apoptosis was detected by flow cytometry (FC) after 24 hours.And the expression of p66Shc was detected by immunohistochemical method after 24 hours.The correlation of the changes in mitochondrial membrane potential and p66Shc protein expression was analyzed by using Bivariate correlation analysis.Results 1.Under inverted microscopy,A549 cells from the air group significantly increased,stuck to each other tightly and grew very quickly.Their adhesion was better,multy-angle oblate and many cells were in division phase.Compared with the control group,the changes in morphology of A549 were remarked and obvious than those in the hyperoxia group.The cells grew slowly,their counts decreased and the cell morphology changed from typical multi-angle oblate to round or ellipse.2.Compared with the control group,after 24 h,in hyperoxia group of A549 cells,red fluorescence decreased,and green fluorescence enhanced.3.Compared with the controls (0.057 664 88 ± 0.006 517 84),the expression of p66Shc (0.123 600 50 ± 0.004 227 23) was significantly increased in the hyperoxia group(t =-24.006,P ＜ 0.001).4.The decline of membrane potential was negatively correlated with the increased expression of p66Shc protein (R =-0.988,P ＜ 0.001).Conclusions The hyperoxia induction could significantly increase in injured mediating alveolar epithelial cells induced by hyperoxia,the expression of p66Shc increases,the membrane potential declined,and they exhibit a negative correlation.So p66Shc may be involved in the process of high oxygen damage to human alveolar epithelial cells.

Objective To investigate the lacrimal gland normal and abnormal diagnosed characteristics.Methods One hundred and six cases were examined by color Doppler flow imaging(CDFI).The results were compared with B mode scan.Results CDFI was better than B mode ultrascan in showing the whole lacrimal gland and inter echo at the same time observing the blood flow of it.Configuration and blood flow combining were a good choice for lacrimal gland disease in the diagnosis.Conclusions CDFI was the best way for lacrimal gland diseases.

Objective To explore the potential mechanism of abnormal behavior resulted from maternal separation in neo-natal period in rat. Methods Neonatal rats were equally and randomly divided into maternal separation group and control group. The rats in maternal separation group were separated from the dam for 3h per day on postnatal days (PND) 2 to 21, nothing was done to the rats in the control group. The brain tissues were taken out after being killed on PND 7, 14, and 21. The expressions of Caveolin-l, BDNF and GFAP in hippocampal formation were detected by immunohistochemistry. Semiquantitative assessment of immunohistochemical images was performed by Image-Pro Plus software. Results Compared with control groups, the expres-sion of Caveolin-l on PND 7 had no signiifcant change, while BDNF and GFAP were signiifcantly increased in maternal separa-tion group (P<0.05). On PND 14 and 21, the expressions of Caveolin-l, BDNF and GFAP were signiifcantly decreased in maternal separation group (P<0.05). Conclusions Decreased expressions of Caveolin-l, BDNF and GFAP caused by maternal separation in neonatal period may be associated with abnormal behaviors in adulthood in rat.

This paper analyzed the characteristics of post-disaster medical assistance systems in Anglo-American countries and Japan. In consideration of China's national conditions at present, it come up with recommendations that the government should formulate and perfect the legal system of postdisaster medical assistance, improve the related systems of medical care, establish post-disaster medical assistance responding as a long-term management mechanism, establish and improve emergency preparedness, and post-disaster psychological intervention in mechanisms.

Objectives To explore the role of PKCβ/p66Shc oxidative stress signaling pathway in hyperoxia-induced apoptosis of alveolar epithelial cells A549. Methods A549 cells were cultured in vitro and divided randomly into control (incubated with 5%CO2), hyperoxia group (exposed to a mixture of 900 ml/L O2 and 50 ml/L CO2 at speed of 3 L/min for 10 mins, then cultured in a closed environment) and LY333531 group (treated with 10μmol/L of PKCβinhibitor LY333531 for 24h then induced with hyperoxia for 10 mins). The cellular morphology was observed under inverted microscope at 12, 24 and 48 h of treatment. The cell apoptosis was detected by lfow cytometry. Expression of PKCβ/Pin1/p66Shc/p66Shc-Ser36 were detected by immunohistochemistry after 24 h of treatment. Results Comparing to the control group, the cellular morphology of A549 in the hyperoxia group changed to spherical shapes and space between cells increased, the living cell count decreased and suspension cell increased. The living cell count in LY333531 group increased and suspension cell decreased than those in hyperoxia group but not reach the levels of the control group. The apoptosis rate of A549 cells and the expression of PKCβ/Pin1/p66Shc/p66Shc-Ser36 at 24 h were signiifcantly increased in the hyperoxia group than those in the control group, while the apoptosis rate and the expression of PKCβ/Pin1/p66Shc/p66Shc-Ser36 were greatly decreased in the LY333531 group than those in the hyperoxia group (all P<0.01). Conclusions The expression of PKCβin A549 cells can be increased by the hyper-oxia induction but reduced by LY333531, and then the expressions of Pin1, p66Shc and p66Shc-Ser36 are reduced. Thus the re-duced apoptosis of A549 cells relieve the cell injury induced by hyperoxia.

Objective To explore the optimization of intubations for severe brain injury patients in ICU. Methods Seventy-six severe brain injury patients were divided into research group and traditional group through the envelop method, with 38 patients in each group. Patients in research group was induced by dexmedetomidine, while patients in traditional group was induced by midazolam or propofol. Throat and intratrachea surface anesthesia was taken with 3 ml of 1%lidocaine on two groups before intubation, and they were intubated through direct laryngoscope. Patients were connected with breathing machines after intubation, and the arterial carbondioxide partial pressure was maintained at 30-35 mmHg (1 mmHg=0.133 kPa). Intubations time, one-time success rate, cardiovascular reaction index, myocardial damage and heart failure biomarkers, adverse reaction, patients comfort and intubationists satisfaction of the two groups were compared. Results The intubation time on research group was significantly shorter than that on traditional group [(27.1 ± 14.2) s vs. (42.2 ± 18.7) s], and there was statistical significance (P<0.01). The one-time success rates in two groups was not statistically significant (P>0.05). The heart rates and mean arterial pressure (MAP) at pre-intubation, post-intubation, 5 min after intubation and 10 min after intubation in research group were significantly lower than those in traditional group:heart rate:(77.8 ± 8.5) bpm vs. (85.1 ± 7.6) bpm, (85.3 ± 9.1) bpm vs. (106.4 ± 12.5) bpm, (84.4 ± 10.4) bpm vs. (96.4 ± 11.9) bpm, (80.5 ± 12.1) bpm vs. (89.0 ± 10.5) bpm;MAP: (82.6 ± 10.1) mmHg (1 mmHg = 0.133 kPa) vs. (93.2 ± 14.3) mmHg, (88.3 ± 13.2) mmHg vs. (113.7 ± 15.1) mmHg, (85.4 ± 14.0) mmHg vs. (101.3 ± 9.9) mmHg, (83.7 ± 10.7) mmHg vs. (90.3 ± 13.4) mmHg, and there were statistical significances (P<0.05). There was no statistical significance of SpO2 between groups at every time point (P>0.05). For 6 and 12 h after intubation, creatine kinase isoenzyme MB (CK-MB), cardiac troponin T (cTnT) and brain natriuretic peptide (BNP) levels in research group were significantly lower than those in traditional group:CK-MB:(30.5 ± 7.2) U/L vs. (35.2 ± 10.1) U/L, (25.7 ± 5.7) U/L vs. (27.7 ± 6.5) U/L;cTnT:(0.6 ± 0.2) μg/L vs. (0.8 ± 0.1) μg/L, (0.5 ± 0.2) μg/L vs. (0.6 ± 0.2) μg/L;BNP:(152.6 ± 13.7) pg/L vs. (189.4 ± 19.3) pg/L, (89.7 ± 27.5) pg/L vs. (111.8 ± 20.4) pg/L, and there were statistical significances (P<0.05). There were no significant adverse reactions in two groups after topical anesthesia. The comfort and intubationists satisfaction scores in research group were significantly higher than those in traditional group: (2.5 ± 0.4) scores vs. (1.8 ± 0.5) scores and (8.8 ± 1.1) scores vs. (7.1 ± 0.9) scores, and there were statistical significance (P<0.01). Conclusions Combining dexmedetomidine induction with topical anesthesia to intubate is safe and effective, which is the optimization of tracheal intubations to severe brain injury patients.

Objective To construct p66shc gene interfering lentivirus vectors recombination and transfect it to 293T cells ,RNA interfering was carried out to induce p66shc gene silence ,so as to provide basis for further study of the p66shc function .Methods Screening of three RNA targets which were named after p66shc‐shc1 ,p66shc‐shc2 ,p66shc‐shc3 ,cloned into the pLenR‐GPH vec‐tor ,which contained green fluorescent protein(GFP) and transformed into DH5αcells .The positive clone were picked out for right sequencing and transfected to 293T cells with pRsv‐REV ,pMDlg‐pRRE ,pMD2G .The expression of GFP in inverted fluorescence microscope confirmed the virus packaging success .Fluorescence quantitative PCR and Western blot technology were used to investi‐gate the expression of p66shc at the molecular and protein levels ,p66shc‐shc1 target of effective silencing p66shc gene was selected to prepare for subsequent tests .Results The shRNA lentivirus vector was constructed which could express p66shc and was trans‐fected into 293T cells successfully .Fluorescence quantitative PCR and Western blot technology were used to investigate p66shc gene silence by RNA interference .Conclusion The lentivirus RNAi vector of targeted expression p66shc could induce p66shc gene si‐lence at the molecular and protein levels after transfected into 293T cells by RNA interference .

Objective To investigate the clinical effect of mild hypothermia on neonatal bilirubin encephalopathy, and the value of 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/CT and amplitude integrated electroencephalogram (aEEG) for diagnosis and evaluation of curative effect. Methods From May, 2013 to December, 2014, 29 newborns with bilirubin encephalopathy were divided into conventional group (n=15) and mild hypothermia group (n=14). The conventional group received conventional therapy, and the other group received mild hypothermia in addition. The aEEG and neuron-specific enolase (NSE) were measured before and after treatment, as well as the glucose metabolism rate with 18F-FDG PET/CT after treatment. Results The NSE was lower after treatment in both groups (t>9.670, P<0.001), and was lower in the mild hypothermia group than in the conventional group (F=46.146, P<0.001). After treatment, sleep-wake cycle (SWC), epileptiform activity and the degree of abnormality were obviously improved (P<0.05), and were better in the mild hypothermia group than in the conventional group (P<0.05). The cerebral glucose metabolism rate was significantly better in the mild hypo-thermia group than in the conventional group (t>2.943, P<0.01). The cerebral glucose metabolism rate was negatively correlated with aEEG and NSE (r>0.640, P<0.05). Conclusion Mild hypothermia therapy could further promote the energy metabolism of brain cells in neonatal bilirubin encephalopathy. 18F-FDG PET/CT and aEEG can be used for early diagnosis and therapeutic evaluation.

Objective To evaluate the efficacy and safety of inhaled corticosteroids for preventing chronic lung disease (CLD) in preterm infants. Methods PubMed, EMBASE, CENTRAL, the ISI Web of Knowledge databases, CBM, CNKI, VIP and Wanfang Data were searched for the period up to Oct. 2016. All randomized controlled trials (RCTs) about inhaled corticosteroids for preventing CLD in preterm infants were collected. The RCTs had been screened, data were extracted and assessed. The mata-analysis was performed by RevMan 5.3 software. Result A total of 12 RCTs were included (a total of 2051 preterm neonates). Compared with control group, in 28 day old group, the incidence of CLD was not significantly different between experimental and control groups (RR=0.87, 95%CI:0.74-1.03, P=0.11) and (RR=1.19, 95%CI:0.59-2.43, P=0.63) and no significant difference among subgroups budesonide (α), beclomethasone (β), fluticasone (γ) (RR=0.89, 95%CI:0.69-1.14, P=0.35), (RR=0.86, 95%CI:0.69-1.08, P=0.19) and (RR=0.91, 95%CI:0.60-1.38, P=0.19). In 36 wk postmenstrual age group,the incidence of CLD was decreased in experimental group and in subgroups inhalation (A), Intratracheal administration (B), α, γ (RR=0.70, 95%CI: 0.61-0.80, P<0.00001), (RR=0.74, 95%CI: 0.63-0.87, P=0.0003), (RR=0.57, 95%CI: 0.43-0.76, P=0.0002), (RR=0.67, 95%CI: 0.57-0.78, P<0.00001) and (RR=0.58, 95%CI: 0.36-0.94, P=0.03); but it is not significantly different in subgroup β(RR=0.98, 95%CI: 0.69-1.39, P=0.90); There was no difference in the motality in experimental and subgroups A ,B, α, β , γ (RR=1.07, 95%CI:0.86-1.33, P=0.55), (RR=1.24, 95%CI: 0.97-1.59, P=0.09), (RR=0.67, 95%CI: 0.43-1.03, P=0.07), (RR=1.04, 95%CI: 0.81-1.33, P=0.78), (RR=1.47, 95%CI: 0.79-2.74, P=0.22) and (RR=0.91, 95%CI: 0.47-1.74, P=0.77). No clinically significant adverse effects were observed during the study. Conclusions This updated review indicated that early administration of inhaled steroids to very low birth weight preterm neonates was effective in reducing the incidence of CLD. There was no statistically significant effect of inhaled steroids on motality, and there was no significant correlation between the mode of administration and the type of drug delivery, It is recommended to observe the 36 week gestational age as the outcome index. More and larger randomised placebo-controlled trials including long-term follow up are needed to establish the efficacy and safety of inhalation corticosteroids.

Objective: To analyze the compatibility taboo of polyene phosphatidyl choline injection with several kinds of commonly used clinical drugs.Methods: The medical literatures on the compatibility taboos of polyene phosphatidyl choline injection with several commonly used drugs were retrieved and statistically analyzed.Results: After the compatibility of polyene phosphatidyl choline injection with vitamin C, raceanisodamine injection, doxofylline and sodium chloride injection,ambroxol hydrochloride injection,ondansetron hydrochloride injection and the other commonly used drugs, physical and chemical reactions happened in varying degrees.Conclusion: Polyene phosphatidyl choline injection has compatibility taboos with a variety of commonly used drugs.