1.Analysis of the changes in intestinal microecology in the early stage of sepsis rat based on 16S rDNA sequencing
Hongyi LI ; Ruiqing ZHAI ; Huoyan LIANG ; Yanhui ZHU ; Yan YAN ; Chengyang WANG ; Xianfei DING ; Gaofei SONG ; Tongwen SUN
Chinese Critical Care Medicine 2022;34(1):28-34
Objective:To investigate the changes of intestinal microecology in the early stage of sepsis rat model by 16S rDNA sequencing.Methods:Sixty male Sprague-Dawley (SD) rats were randomly divided into cecal ligation and puncture (CLP) group and sham operation group (Sham group), with 30 rats in each group. In the CLP group, sepsis rat model was reproduced by CLP method; the rats in the Sham group only underwent laparotomy without CLP. At 24 hours after the operation, the intestinal feces and serum samples of 8 rats in each group were collected. The survival rate of the rest rats was observed until the 7th day. The level of serum tumor necrosis factor-α (TNF-α) was detected by enzyme-linked immunosorbent assay (ELISA). Intestinal feces were sequenced by 16S rDNA sequencing technology. The operational taxonomic unit (OTU) data obtained after sequence comparison and clustering was used for α diversity and β diversity analysis, principal coordinate analysis and linear discriminant analysis effect size analysis (LEfSe) to observe the changes of intestinal microecology in early sepsis rats and excavate the marker flora.Results:At 24 hours after the reproduction of the model, the rats in the CLP group showed shortness of breath, scattered hair and other manifestations, and the level of serum TNF-α increased significantly as compared with that in the Sham group (ng/L: 43.95±9.05 vs. 11.08±3.27, P < 0.01). On the 7th day after modeling, the cumulative survival rate of the Sham group was 100%, while that of the CLP group was 31.82%. Diversity analysis showed that there was no significant difference in α diversity parameter between the Sham group and the CLP group (number of species: 520.00±52.15 vs. 492.25±86.61, Chao1 richness estimator: 707.25±65.69 vs. 668.93±96.50, Shannon index: 5.74±0.42 vs. 5.79±0.91, Simpson index: 0.93±0.03 vs. 0.94±0.05, all P > 0.05). However, the β diversity analysis showed that the difference between groups was greater than that within groups whether weighted according to OTU or not (abundance weighted matrix: R = 0.23, P = 0.04; abundance unweighted matrix: R = 0.32, P = 0.01). At the phylum level, the abundance of Proteobacteria and Candidatus_sacchari in the CLP group increased significantly as compared with the Sham group [18.100% (15.271%, 26.665%) vs. 6.974% (2.854%, 9.764%), 0.125% (0.027%, 0.159%)% vs. 0.018% (0.008%, 0.021%), both P < 0.05]. At the genus level, the abundance of opportunistic pathogen including Helicobacter, Ruthenium, Streptococcus, Clostridium ⅩⅧ in the CLP group was significantly higher than that in the Sham group [5.090% (1.812%, 6.598%) vs. 0.083% (0.034%, 0.198%), 0.244% (0.116%, 0.330%) vs. 0.016% (0.008%, 0.029%), 0.006% (0.003%, 0.010%) vs. 0.001% (0%, 0.003%), 0.094% (0.035%, 0.430%) vs. 0.007% (0.003%, 0.030%), all P < 0.05], and the abundance of probiotics such as Alloprevotella and Romboustia was significantly lower than that in the Sham group [7.345% (3.662%, 11.546%) vs. 22.504% (14.403%, 26.928%), 0.113% (0.047%, 0.196%) vs. 1.229% (0.809%, 2.29%), both P < 0.01]. LEfSe analysis showed that the probiotics belonging to Firmicutes were significantly enriched in the Sham group, and Romboustia was the most significantly enriched species. Opportunistic pathogens such as Helicobacter, Streptococcus and Clostridium ⅩⅧ were significantly enriched in the CLP group, Helicobacter_NGSU_ 2015 was the most significantly enriched species. Conclusion:In the early stage of sepsis, the intestinal microbiota structure of rats is significantly changed, which mainly shows that the abundance of Alloprevotella and other probiotics is significantly reduced, while that of Helicobacter and other opportunistic pathogens is significantly increased.
2.Adjunctive sepsis therapy with aminophylline (STAP): a randomized controlled trial
Ruifang ZHANG ; Huan LIU ; Dongmei DAI ; Xianfei DING ; Dong WANG ; Yan WANG ; Xuexiu SHI ; Shuguang ZHANG ; Xiaoguang DUAN ; Haixu WANG ; Yonggang LUO ; Shaohua LIU ; Bing HAN ; Xiaojuan ZHANG ; Yu FANG ; Jing YANG ; Wangbin XU ; Tongwen SUN
Chinese Medical Journal 2022;135(23):2843-2850
Background::Sepsis is a serious disease caused by infection. Aminophylline has anti-asthma and anti-inflammatory effects. We aimed to explore the safety and effect of aminophylline in sepsis.Methods::We conducted a clinical randomized controlled trial involving 100 patients diagnosed with sepsis within 48 h after intensive care unit (ICU) admission in two sites. All patients were randomized in a 1:1 ratio to receive standard therapy with or without aminophylline. The primary clinical outcome was all-cause mortality at 28 days.Results::From September 27, 2018 to February 12, 2020, we screened 277 septic patients and eventually enrolled 100 patients, with 50 assigned to the aminophylline group and 50 to the usual-care group. At 28 days, 7 of 50 patients (14.0%) in the aminophylline group had died, compared with 16 of 50 (32.0%) in the usual-care group ( P = 0.032). Cox regression showed that the aminophylline group had a lower hazard of death (hazard ratio = 0.312, 95% confidence interval: 0.129-0.753). Compared with the usual-care group, patients in the aminophylline group had a longer survival time ( P = 0.039 by the log-rank test). The effects of aminophylline on vasopressor dose, oxygenation index, and sequential organ failure assessment score were time-dependent with treatment. There were no significant differences in total hospitalization days, ICU hospitalization days, and rates of serious adverse events (all P > 0.05). No adverse events were observed in the trial. Conclusions::Aminophylline as an adjunct therapy could significantly reduce the risk of death and prolong the survival time of patients with sepsis.Trial registration::ChiCTR.org.cn, ChiCTR1800019173.
3.Research progress of music therapy in lung cancer surgery
LI Yang ; ZHANG Ming ; YAN Xianfei ; YU Yi ; WANG Yongjie
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2019;26(5):489-493
Music has a powerful influence on people’s psychology and emotions. Many clinical research reports confirm that music therapy can directly affect and improve people’s psychological and physiological status, alleviate patients’anxiety and other adverse physiological emotions, improve the effectiveness of surgical treatment, and promote rapid recovery. Lung cancer surgery has the characteristics of great trauma, high incidence of postoperative complications and poor prognosis. Therefore, music therapy has its unique advantages for lung cancer. With the rapid development of thoracic surgery (ERAS), as an important part of psychological intervention, music therapy plays an irreplaceable role in the surgical treatment of lung cancer. This article reviews the impact of music therapy on anxiety in lung cancer surgery.
4.Dexmedetomidine and midazolam in procedural sedation: a systematic review of efficacy and safety
Xianfei DING ; Bo YUAN ; Zhentao XU ; Shaohua ZHENG ; Yan MA ; Peina SHI ; Tongwen SUN
Journal of Jilin University(Medicine Edition) 2017;43(4):762-769
Objective:To systematically review the efficacy and safety of dexmedetomidine and midazolam in procedural sedation. Methods: PubMed,EMBase,Cochrane Library,CNKI,CBM and WanFang databases were retrieved to collect the randomized controlled trials (RCT) about comparion of efficacy and safety between dexmedetomidine and midazolam in procedural sedation up to March, 2017. Based on the inclusion criteria, the data extraction and quality evaluation were performed, and then the systematic evaluation was carried out.The outcome measures for efficacy were the satisfaction scores and pain scores of the patients and clinicians;the outcome measures for safety comparison were hypotension, hypoxia, and circulatory and respiratory complications.Results:There were 14 RCT satisfied the inclusion criteria including 949 patients.Compared with midazolam group, the incidence of pain, delirium, and analgesia of the patients in dexmedetomidine group had significant differences (P<0.05);but the incidence of respiratory depression, low blood pressure had no significant differences (P>0.05).Conclusion:When the adult patients are sedated, dexmedetomidine can be used as an ideal alternative to midazolam sedation.
5.Practice and Experience of the Development of Pharmaceutical Care by Clinical Pharmacists in Our Hospital Based on Micro Letter Public Platform
Yan GUI ; Gang LI ; Xianfei LI ; Jizhi CHEN
China Pharmacy 2015;26(35):5015-5016
OBJECTIVE:To discuss the feasibility of the development of pharmaceutical care by clinical pharmacist based on micro letter public platform. METHODS:The content and method of pharmaceutical care based on micro letter public platform were introduced by registering micro letter public platform public number,building reasonable medication guidance team,releasing reasonable medication information regularly. RESULTS:40 pieces of reasonable medication information had been pushed by micro letter public platform of our department during Aug.-Nov. 2014,and 350 users added our public platform. The pushed information was mainly about reasonable drug use(57.5%),read by 18 585 persons,and read by 465 person per time in average. Reposted or collected 2 190 times in total,reposted or collected 55 times in average,each piece of information was read by 4 219 person per time at the most. CONCLUSIONS:The pharmaceutical care by pharmacists depending on micro letter public platform contribute to put pharmacist team together,build professional image and provide pharmaceutical care for the public in the information age.
6.Effect of arsenic trioxide on anti-dsDNA antibody and lymphocyte subsets proliferation in splenic cells of lupus-prone MRL/lpr mice
Xiaobing WANG ; Shenghui ZHANG ; Xianfei ZOU ; Yan ZHOU ; Xiaochun ZHU ; Chaosheng CHEN
Basic & Clinical Medicine 2006;0(05):-
Objective To investigate the effects of arsenic trioxide(ATO) on anti-dsDNA antibody and lymphocyte subsets proliferation in splenic cells of MRL/lpr mice.Methods MRL/lpr mice were divided into three groups: ATO group(0.4 mg/kg?d,ip),sodium chloride(NS) group(0.25 mL,ip),and cyclophosphamide(CTX) group(50 mg/kg?qw,ip).The control group consisted of 12 syngeneic normal C57/BL mice,which were sub-divided into ATO group(0.4 mg/kg?d,ip) and NS group(0.25 mL,ip).After two-month treatment,all mice were killed and their bodies and spleens were weighed.Anti-dsDNA antibody in serum were detected by ELISA.The percentage of different cell subsets was checked through flow cytometry.Results(1)The spleen index、serumlevel of anti-dsDNA antibody and the percentages of CD19+、CD3+、CD3+CD4+ lymphocytes in ATO group were much lower than those in NS group of MRL/lpr mice(P0.05). Conclusion Arsenic trioxide can inhibit the activation of T and B lymphocytes,increase the percentage of NK cell and reduce the serum level of auto-antibody.And it was of no effect in the normal mice.

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