Objective To investigate the correlationship between depressed behaviors and interleukin-1β (IL-1β) in brain tissue in mice which are insensitive to fluoxetine,and to mimic the treatment resistant depression (TRD) in clinical condition.Methods 50 BALB/c mice were randomly divided into Control group (Control),Chronic unpredictable mild stress (CUMS) group and CUMS+fluoxetine group.Mice in Control group were raised ad libitum for 9 weeks,those in CUMS group received CUMS for 9 weeks and those in CUMS+fluoxetine group received 8 weeks' CUMS followed 1 week' s treatment with Fluoxetine(10 mg · kg-1 · d-1).At the end of the 9th week,mice in(CUMS + treatment)group were selected into antidepressant treatment-resistant mice(ATRM) as no remission and Depression Group (DM) as symptoms improved.Body mass test (BMT),open field test (OFT) and forces swim test (FST) were completed respectively in these 4 groups at the endpoint of the experiment,and the brain tissue were extracted after the tests for IL-1β Elisa test.Results (1) BMT:there was no effect of weightgain in ATRM after 1 week' s therapy with Fluoxetine.There was no difference in body-weight between ATRM ((18.56±7.56) g) and CUMS ((19.03± 8.58) g) mice,while compared with Control ((24.56±5.45) g) and DM mice ((20.12±9.17) g) ATRM and CUMS mile's body weight were significantly lower (P＜0.05).(2)OFT and FST:in OFT,there was no significant difference in of horizontal moving distance(F=0.355) either in the frequencies of entering the central zone (F=0.327) among the 4 groups;in OFT,the immobility time of ATRM ((241.50 ± ± 36.55) s) was significantly longer than that in DM ((156.00± 25.47) s) (F=13.573,P＜0.05).(3) Elisa test of IL-1β:the brain' s IL-1β serum level in ATRM ((164.90±46.70) pg/mg) was higher than those in Control ((69.68±6.56) pg/mg)),and DM ((93.09±4.65) pg/mg) (P＜0.01),while no difference with that in CUMS mice.Additionally,the depressive behaviors in ATRM showed its positive correlation with the IL-1β level in CNS (r=0.669,P=0.006).Conclusion CUMS can elicit the refractory depressive symptoms in BALB/c mice to simulate TRD' s characteristic,and the elevated level of IL-1 β within brain tissue may play an important role in the development of TRD.

Objective To investigate the effect of rosmarinic acid on the behavioral changes in enhanced single prolonged stress (ESPS) model rats and the levels of interlukin-1β (IL-1β) and interlukin-6 (IL-6) in the hippocampus.Methods 48 adult male Sprague Dawley rats were randomly divided into six groups (n =8):Control group,Control + RA (L) group,Control + RA (H) group,ESPS group,ESPS + RA (L) group and ESPS + RA (H) group.Behavioral changes of these rats were analyzed by open field test and elevated plus-maze.The levels of IL-1 β and IL-6 were measured by enzyme linked immunosorbent assay (ELISA).Results (1) Open field test showed that the number of central region entering and the fraction of time exploring in center of ESPS group were significantly reduced than that of Control group ((18.13 ± 10.15) times,(26.68 ± 10.06) ％) and ESPS + RA (H) group ((16.88 ± 8.81) times,(25.08 ± 8.52) ％) (P ＜ 0.05).And it showed no significant difference among Control + RA(L) group,Control + RA(H) group and Control group.Meanwhile,there was also no statistic difference between ESPS group and ESPS + RA(L) group.(2) Elevated plus-maze test showed that percentages of open arm entries and fraction of time exploring in open arm in reference to total number of entries into all arms and total time spent on all arms in ESPS group were significantly reduced than that of Control group((37.38 ± 8.24)％,(17.63 ±4.74)％) and ESPS + RA(H) group((33.72 ±9.49)％,(16.99 ±4.28)％) (P ＜ 0.05),but there was no significant difference between that of ESPS group and ESPS + RA(L) group(P＞0.05).It also showed no significant difference among Control + RA (L) group,Control + RA (H) group and Control group.(3) Compared with ESPS group,RA(10mg/kg) reduced the levels of IL-1β and IL-6 in the hippocampus,but RA(5mg/kg) did not have this effect.(4) Correlation analysis results showed the level of IL-1β in the hippocampus was negatively related with the ameliorated PTSD-like behaviors of ESPS exposure rats.Conclusion RA can ameliorate PTSDlike behaviors of ESPS exposure rats,and this effect may be carried out by down-regulating the levels of IL-1β and IL-6 in the hippocampus,especially the IL-1β.

Objective To approach the effect of Shenfu injection (SFI) and conventional early goal-directed therapy (EGDT) on organ functions and outcomes of septic shock patients. Methods Eighty-four cases conformed to the criteria for the diagnosis of septic shock admitted to Department of Critical Care Medicine of Xuzhou Central Hospital were randomly divided into conventional treatment group (42 cases), and SFI treatment group (42 cases). Conventional treatment was given in the two groups;in SFI treatment group, SFI 100 mL was additionally given by trace continuous intravenous pump 20 mL/h, twice daily for 7 days. Before and after treatment for 1, 6, 12, 24, 48, 72 hours, the levels of hemodynamic status, lactic acid and dosage of vasoactive drugs used, organ function, acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score, sequential organ failure assessment (SOFA) score, the time of weaning from ventilator, the length of stay in intensive care unit (ICU), time without organ failure and 28-day mortality rate were observed. Results Compared with those before treatment, after treatment in the two groups, the mean arterial pressure (MAP), cardiac index (CI) and systemic vascular resistance index (SVRI) were increased, while the levels of heart rate (HR) and lactate were decreased (all P<0.05). Compared with conventional treatment group, in SFI treatment group, after treatment for 24 hours, the MAP level was increased significantly [mmHg (1 mmHg=0.133 kPa):75.40±9.75 vs. 71.80±11.08, P < 0.05], that continued to 48 hours; after treatment for 6 hours, the CI level was increased obviously (mL·s-1·m-2: 75.18±34.84 vs. 67.35±39.34, P < 0.05) , that continued to 48 hours; after treatment for 6 hours, the lactic acid level was decreased markedly (mmol/L: 2.03±0.82 vs. 2.24±0.97, P < 0.05);in the comparison of dosage of vasoactive drugs used between two groups, the difference was not significant (all P >0.05). Compared with that before treatment, in the conventional treatment group after treatment for 1 and 3 days, gamma glutamyl transpeptidase (GGT) was increased, on the 5th day it began to decrease, reaching its minimum on the 7th day (U/L:26.75±16.74 vs. 46.96±25.85);while in SFI treatment group, GGT was increased after treatment for 1 day, on 3rd day it began to decrease, reaching its lowest level on the 7th day (U/L:22.41±17.87 vs. 51.23±27.74);aspartate aminotransferase (AST), total bilirubin (TBil), oxygenation index (PaO2/FiO2) were increased after the treatment for 1, 3, 5, 7 days, and blood urea nitrogen (BUN), creatinine (Cr) were decreased at different time points after treatment. In the conventional treatment group, the precursor protein (PA) was decreased after treatment for 1, 3, 5 days, on the 7th day it was increased (mg/L:134.20±63.44 vs. 115.70±45.96);while in SFI treatment group, after the treatment for 1 days and 3 days, it was decreased, on the 5th day it was increased, reaching its highest level on the 7th day (mg/L:145.40±59.75 vs. 108.20±54.34). Compared with those before treatment, after treatment for 1, 3, 5, 7 days, APACHEⅡscore and SOFA score were decreased in the two groups, but there was no statistically significant difference in APACHEⅡscore between the two groups, in SFI treatment group after treatment for 3 days, SOFA score was significantly lower than that of the conventional treatment group (6.31±3.86 vs. 7.14±4.03, P<0.05), that continued to the 7th day after treatment. In SFI treatment group, the time for weaning from ventilator (days:7.5±3.5 vs. 9.1±3.2) and the length of stay in ICU (days: 16.1±9.2 vs. 18.7±8.3) were significantly shorter than those in conventional treatment group (both P<0.05). There were no significant differences in time without organ failure (days:14.5±4.2 vs. 15.3±3.1) and 28-day mortality rate [28.6%(12/42) vs. 31.0%(13/42)] between SFI group and conventional group (both P>0.05). Conclusion The combined use of SFI and EGDT can improve hemodynamics, reduce damage to vital organs, and shorten the times for ventilation and stay in ICU in septic shock patients.

Objective To investigate the effects of gastrodin on neural function and the expression of myelin basic protein (MBP) and neurofilament high molecular weight (NFH) in the striatum during cerebral ischemiareperfusion in mice.Methods 36 Kunming mice were randomly divided into sham group,MCAO group and gastrodin (GAS) group.The middle cerebral artery occlusion(MCAO) was established by artery embolization.The mice in sham group were received fake surgery and saline,and the mice in MCAO and GAS group were exposed to MCAO,and received saline and GAS (100 mg/(kg · d)) injection,respectively,immediately after the operation for 7 days.On the 8th day of operation,the neurological severity scores of the mice were observed and the volume ratio of the cerebral infarction was estimated by triphenyl tetrazolium chloride (TTC) staining.Immunohistochemistry was used to detect the MBP and NF-H in the striatum.Results (1) The mice in MCAO group showed significant neurologic deficient in comparison with sham group,and the neurological severity scores of gastrodin group(3.13±0.64) were significantly higher than that(1.38±0.52) of MCAO group (P＜0.05).(2) Results of TTC staining showed that the infarction volume was obviously larger in the injured cerebral tissue in MCAO group in comparison with sham group,and the volume ratio of the cerebral infarction significantly decreased after the intervention with GAS (P＜0.05).(3) The integral optical density of MBP(272968.14±1215.23) and NF-H(12 142.73±47.16) in MCAO group decreased as compared to that((43 855.23±2434.16),(275 321.00±926.15)) in sham group and GAS group((321 531.2±2376.14),(106 135.73±598.15)) (P＜0.05).Conclusion GAS can improve neural function of mice after middle cerebral artery occlusion,and it may play an important role in protecting myelin and nerve fibers of striatum.

Objective:To evaluate the effect of long non-coding RNA (lncRNA) nuclear enriched abundant transcript 1 (NEAT1) on the radiosensitivity in breast cancer cells by regulating the miR-149-5p/ glutamic pyruvic transaminase 2 (GPT2) axis.Methods:Real-time reverse transcription PCR (RT-qPCR) was used to detect NEAT1, miR-149-5p and glutamic pyruvic transaminase 2 (GPT2) mRNA levels in human breast cells MCF-10A, and human breast cancer cells MCF-7, MDA-MB-231 and MDA-MB-468, respectively. MCF-7 cells were divided into 0, 2, 4, 6 and 8 Gy irradiation groups. MCF-7 cells were divided into NEAT1 knockdown (si-NEAT1) group and control (si-NC) group, NEAT1 knockdown +miR-149-5p knockdown (si-NEAT1+anti-miR-149-5p) group and control (si-NEAT1+anti-miR-NC) group, NEAT1 knockdown + GPT2 overexpression (si-NEAT1+GPT2) group and control (si-NEAT1+NC) group. On the basis of the above grouping, irradiate each group of cells with 4 Gy radiation for 2 h, denoted as IR+si-NEAT1, IR+si-NC, IR+si-NEAT1+anti-miR-149-5p, IR+si-NEAT1+anti-miR-NC, IR+si-NEAT1+GPT2, IR+si-NEAT1+NC groups. Subsequently, MCF-7 cells were irradiated at a dose of 4 Gy and divided into the IR+si-NEAT1, IR+si-NC, IR+si-NEAT1+anti-miR-149-5p, IR+si-NEAT1+anti-miR-NC, IR+si-NEAT1+GPT2 and IR+si-NEAT1+NC groups. RT-qPCR was used to detect NEAT1, miR-149-5p, GPT2 mRNA levels in cells. Colony formation assay was used to detect cell radiosensitivity. CCK-8 assay was adopted to detect cell proliferation ability. The binding sites of NEAT1 and miR-149-5p were predicted by StarBase database. The binding sites of miR-149-5p and GPT2 were predicted by Targetscan database, and validated by dual luciferase assay. Single factor ANOVA was used for inter-group comparisons. LSD- t test was used for pairwise comparison. Results:Compared with MCF-10A cells, NEAT1 and GPT2 mRNA levels in cell lines were up-regulated, whereas miR-149-5p level was down-regulated (all P<0.05). Compared with the 0 Gy dose group, NEAT1 and GPT2 mRNA levels were down-regulated, while miR-149-5p levels were up-regulated in the 2, 4, 6, and 8 Gy dose groups (all P<0.05). Knockdown of NEAT1 expression or radiation alone could enhance cell radiosensitivity, and reduce cell proliferation ability (all P<0.05). Simultaneous radiation treatment with knockdown of NEAT1 expression could strengthen the above effects upon cells (all P<0.05). Knockdown of miR-149-5p expression or overexpression of GPT2 could partially reverse the aforementioned effects of knockdown of NEAT1 expression (all P<0.05). Conclusion:Knockdown of NEAT1 expression enhances breast cancer cell radiosensitivity, and reduces cell proliferation ability by regulating the miR-149-5p/GPT2 signal axis.

To summarize the nursing experience of 5 patients with severe ARDS complicated with hypercapnia who underwent extracorporeal carbon dioxide removal(ECCO2R).Key points of nursing care included:establishing a rapid emergency response nursing team for ECCO2R;PETCO2 real-time monitoring to grasp the timing of the machine;ensuring continuity of treatment and improving the removal efficiency;respiratory-related monitoring;prevention of complications of blood coagulation and hypothermia;and weaning from extracorporeal carbon dioxide removal.After careful treatment and care,all the 5 patients were successfully removed from ECCO2R treatment.

Objective To explore the pregnancy outcomes in women whose fetal/embryonic heart rate( FHR) were below 120 beats per minute( bpm) before 8 weeks pregnancy and determine the predictive value of FHR in pregnancy outcome . Methods The laboratory examinations ,clinical data and clinical history of the pregnant women whose FHR were below 120 bpm before 8 weeks pregnancy were retrospectively analyzed . Results When gestational age(GA) was less than 8 weeks ,pregnancy loss was observed in 11 .0% ( 110/998 ) cases with an FHR less than or equal to 120 bpm ,and pregnancy loss occurred in all the cases ( 23/23) with an FHR less than or equal to 70 bpm . The proportions of first trimester loss were 86 .4% (19/22) for pregnancies with an FHR of 71 －80 bpm ,75 .7% (28/37) for pregnancies with an FHR of 81－90 bpm ,25 .5% (14/55) for pregnancies with an FHR of 91 －100 bpm , 6 .3% (13/208) for pregnancies with an FHR of 101 －110 bpm ,and 2 .0% (13/653) for pregnancies with an FHR of 111 －120 bpm .ROC analysis showed that the best cut-off value to predict adverse pregnancy outcomes was an FHR of 94 bpm . The area under the ROC curve was 0 .906 ( P ＜ 0 .0001 ) and its sensitivity and specificity values were 97 .86% and 71 .43% respectively . Conclusions Fetal/embryonic heart monitoring before 8-weeks pregnancy can be an effective predictor for early pregnancy outcome . The best cut-off value to predict adverse pregnancy outcomes is an FHR of 94 bpm .