The plant F-box protein more axillary growth 2 (MAX2) is a key factor in the signal transduction of strigolactones (SLs) and karrinkins (KARs). As the main component of the SKP1-CUL1-FBX (SCF) complex ubiquitin ligase E3, MAX2 is responsible for specifically recognizing the target proteins, suppressor of MAX2 1/SMAX1-like proteins (SMAX1/SMXLs), which would be degraded after ubiquitination. It can thereby regulate plant morphogenesis and stress responses. There exist homologous genes of MAX2 in the important grain and oil crop soybean (Glycine max). However, its role in plant defense responses has not been investigated yet. Here, GmMAX2b, a homologous gene of MAX2, was successfully cloned from stressed soybean. Bioinformatics analysis revealed that there were two MAX2 homologous genes, GmMAX2a and GmMAX2b, with a similarity of 96.2% in soybean. Their F-box regions were highly conserved. The sequence alignment and cluster analysis of plant MAX2 homologous proteins basically reflected the evolutionary relationship of plants and also suggested that soybean MAX2 might be a multifunctional protein. Expression analysis showed that plant pathogen infection and salicylic acid treatment induced the expression of GmMAX2b in soybean, which is consistent with that of MAX2 in Arabidopsis. Ectopic expression of GmMAX2b compensated for the susceptibility of Arabidopsis max2-2 mutant to pathogen, indicating that GmMAX2b positively regulated plant disease resistance. In addition, yeast two hybrid technology was used to explore the potential target proteins of GmMAX2b. The results showed that GmMAX2b interacted with SMXL6 and weakly interacted with SMXL2. In summary, GmMAX2b is a positive regulator in plant defense responses, and its expression is induced by pathogen infection and salicylic acid treatment. GmMAX2b might exert its effect through interaction with SMXL6 and SMXL2. This study expands the theoretical exploration of soybean disease resistant F-box and provides a scientific basis for future soybean disease resistant breeding.
Glycine max/metabolism* ; Disease Resistance/genetics* ; Plant Diseases/immunology* ; Plant Proteins/genetics* ; Cloning, Molecular ; Gene Expression Regulation, Plant ; F-Box Proteins/genetics* ; Arabidopsis/genetics* ; Phylogeny

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.

Objective:To investigate the influence of ferri ion on the growth, reproduction and energy metabolism of Leptospira interrogans ( L. interrogans), and to identify whether the LA_2690 and LA_3598 gene products functioned as ferritin and ferroxidase. Methods:Petroff-Hausser counting method was used to analyze the influence of ferri ion deficiency on the growth and reproduction of L. interrogans serogroup Icterohaemorrhagiae serovar Lai strain 56601 in EMJH medium. Spectrophotometry and Chemiluminescence method was used to detect whether ferri ion deficiency inhibited the synthesis of DNA and ATP in L. interrogans. The structures and functions of L. interrogans LA_2690 and LA_3598 genes were analyzed using bioinformatic softwares. Prokaryotic expression systems for LA_2690 and LA_3598 genes were established and the target proteins, rLep2690 and rLep3598, were extracted by Ni-NTA affinity chromatography. The ferroxidase activity of rLep2690 and rLep3598 was detected by spectrophotometry. After L. interrogans strain 56601 was used to infect human umbilical vein endothelial cells (HUVEC) and monocytes (THP-1), changes in the expression of LA_2690 and LA_3598 genes at transcription level were detected using real-time fluorescence quantitative RT-PCR (qRT-PCR). Results:In the ferri ion-absent EMJH medium, the growth and reproduction of L. interrogans as well as the DNA and ATP synthesis levels were significantly decreased ( P<0.05). The products of LA_2690 and LA_3598 genes were predicted as bacterioferritin (Bfr) and DNA-binding ferritin containing ferroxidase diiron centers, but the latter lacked the heme-binding site and ferroxidase core. The prokaryotic expression systems for LA_2690 and LA_3598 genes could efficiently express the target recombinant proteins. Both the purified rLep2690 and rLep3598 showed a single band on SDS-PAGE. The ferroxidase activity of rLep2690 and rLep3598 was 1 238.619 U/L and 60.052 U/L, respectively. The expression of LA_2690 and LA_3598 genes of L. interrogans at mRNA level was significantly elevated during infection of the two types of cells ( P<0.05). Conclusions:Ferri ion participates in the growth and reproduction of L. interrogans as well as the synthesis of DNA and ATP. LA_2690 and LA_3598 genes were essential for L. interrogans to infect cells, and the product of LA_2690 gene possessed a stronger ferroxidase activity.

Objective To evaluate the value of multi-slice spiral computed tomography angiography(MSCTA)scanning and reconstruction technology in detecting anomalous origin of coronary artery(AOCA).Methods Retrospective analysis was done in 3 856 patients who accepted MSCTA.Volume rendering(VR),multi-planar reformation(MPR),curved planar reformation(CPR)and maximum intensity projection(MIP)were used to observe the origin and course of coronary artery.Results 42 patients with AOCA were detected among 3 856 objects,and the detection rate was 1.09%.The detection rates had no statistically significant difference between male(1.17%)and female(0.98%).The rate of patients with anomalous origin of left coronary artery was 30.95%(13/42), and 9 objects(69.23%,9/13)of them had the anomalous origin of left circumflex.The rate of patients with anomalous origin of right coronary was 66.67%(28/42),and 35.71% of them(17/28)were found to have the anomalous origin of right coronary artery from the left sinus of valsalva.Conclusion MSCTA scanning and reconstruction technology is noninvasive,rapid,accurate and intuitive.

Objective: To compare the efficacy and safety of plasma exchange (PE) combined with double plasma absorption and simple PE in the treatment of acute-on-chronic liver failure. Methods: We retrospectively analyzed 251 cases of acute-on-chronic liver failure treated with artificial liver treatment since January 2015. Changes in clinical manifestations, laboratory tests, and complications of the patients before and after different modes of treatment were compared and short-term efficacy was tracked. In accordance with different data, t-test, Pearson's chi-squared test and Fisher's exact test were used for statistical analysis. Results: The effectiveness of low-volume PE combined with double plasma molecular adsorption system (DPMAS) and equal amount of PE combined with DPMAS was significantly better than simple PE (83.7%, 84.05% and 82.15 vs 55.6%, P < 0.05) in early stage of liver failure. In late-stage of liver failure, there was no significant difference in the treatment efficiency of each group (P > 0.05). Bilirubin and bile acid levels were significantly decreased in combined treatment groups than that to simple PE group (P < 0.05). PTA and albumin improvement rate of DPMAS PE groups were significantly lower than that of simple PE group (P < 0.05). There was no statistical difference in adverse reactions between each group. Conclusion PE combined with DPMAS improves the treatment efficiency of early hepatic failure and decrease dosage of plasma when compared with simple PE. A beforehand DPMAS treatment after PE treatment can improve the adverse effects of DPMAS on blood coagulation function and albumin levels.

Objective To explore the effect of goal-oriented repetitive training on motor function of upper limb in patients with stroke. Methods From March, 2014 to February, 2016, a total of 60 stroke patients were randomly divided into experiment group (n=30) and con-trol group (n=30). Both groups received routine rehabilitation, while the experiment group received goal-oriented repetitive training in addi-tion, 30 minutes once a day, 5 days a week for 4 weeks. They were assessed with simple Fugl-Meyer Assessment-Upper Extremity (FMA-UE) and modified Barthel index (MBI) before and after training. Results There was no difference in the scores of FMA-UE and MBI between two groups before training (Z<1.153, P>0.05). The scores of FMA-UE and MBI significantly improved in both groups after treat-ment (Z>5.645, P<0.001), in which the scores were higher in the experiment group than in the control group (Z>2.275, P<0.05), as well as the D-value of scores before and after training (t>5.770, P<0.001). Conclusion Goal-oriented repetitive training could promote the recovery of upper limb motor function in patients with stroke.

Objective To study the capacity of dentifrice containing hydroxyapatite (HA) particles with various grain sizes on the sorption of Cu (Ⅱ) ion from aqueous solution. Methods Three groups of dentifrice suspensions containing 3% HA particles with 60 nm grain size, 3% HA particles with 12 μm grain size, and blank dentifrice were prepared with serial concentrations. Copper ion solutions with initial concentration of 4.0 mg/L were mixed with dentifrice suspensions respectively and then been kept still for 24 hours. The residual copper ion concentration of the supernatant was measured by inductively coupled plasma emission spectrometer and the sorption rate of copper ion was calculated. Results The residual copper ion concentration of the supernatant decreased with increase of the concentration of dentifrice suspensions. The sorption rate of copper ion of dentifrice containing 60 nm HA was highest among the three groups. Conclusion Nano HA should be added into dentifrice to enhance the sorption capacity of copper ion from aqueous solution.

Objective To explore the application of evidence-based medicine in rehabilitation therapy in clinical teaching. Methods 45 interns were divided into 2 groups. The interns during July, 2011 to April, 2012 as the control group (n=23) received the traditional teaching method and the interns during July, 2012 to April, 2013 as the test group (n=22) accepted the evidence-based medicine teaching method in addition. They were assessed with the test scores of theory and operation, and questionnaires. Results The operation scores and the total scores were higher in the test group than in the control group (P<0.05). The satisfaction was better in the test group than in the control group in the items of improving the ability of self-study, taking the initiative, developing clinical thinking, improving the ability of obtaining information, improving the ability of selecting literature, improving the ability of analyzing and summarizing, improving their overall level and degree of satisfaction with this teaching method (P<0.05). Conclusion The evidence-based medicine teaching method can facilitate to improve the practical skills, cultivate the clinical thinking and improve the overall level for students in rehabilitation therapy in clinical practice.

Objective To explore the application effect of throughout nursing management mode in the free treatment of acquired immune deficiency syndrome (AIDS) in outpatient.Methods Follow the principle of voluntary participation,seventy-two infected person or patients with AIDS were chosen and were divided into the intervention group (n =34) and the control group (n =38).The control group received the routine nursing management mode,and the intervention group received the throughout nursing management mode.The seven compliance indicators were observed and analyzed one year after the intervention.Results The average interval time from confirming HIV to detecting CD4 cell count firstly was 20 d,and the average interval time from finding CD4 less than 350/μl firstly to antivirus treatment was 30 d in the intervention group,and were lower than 30 d,60 d in the control group,and the differences were statistically significant (Z =3.42,3.13,respectively; P ＜ 0.01).The proportions of full compliance,partial compliance in the intervention group were respectively 82.4％,14.7％,and were better than those in the control group(52.6％,34.2％),and the difference was statistically significant (Z =-2.693,P ＜ 0.01).The proportions of the standard of follow-up in the intervention group were respectively 82.4％,and were better than 55.3％ in the control group,and the difference was statistically significant (x2 =6.057,P ＜ 0.05).The proportions of detecting CD4 cell count every three months,the increased CD4 more than 100/μl 6-12 months after the antivirus treatment,the viral suppression 6-12 months after the treatment in the intervention group were respectively 97.1％,79.4％,82.4％,and were better than 81.6％,44.7％,60.5％ in the control group,and the differences were statistically significant (x2 =4.354,5.678,4.138,respectively; P ＜ 0.05).Conclusions The throughout nursing management mode can urge the patients to detect CD4 cell count and standardize the follow-up,and can promote the patients to treat as soon as possible,and increase the medication compliance,and improve the treatment effect,and reduce the incidence and mortality of AIDS-related diseases.

ObjectiveTo observe the postoperational curative effect and complicational occuring status by using soft palate landscape orientation two fusiform cuts and enlarge two amygdales resection to treat(obstructive sleep apnea hyponea syndrome,OSAHS).Methods59 cases with type Ⅰ OSAHS were divided into experimental group(39 cases)using soft palate landscape orientation two fusiform cuts and enlarge two amygdales resection,control group( 20 cases)carrying out UPPP or keeping uvula UPPP.ResultsTow groups postoperational total effective rate 84.75％ (50/59),PSG survey's analysis( x2 =6.348,P ＜0.05 ) with preoperation,postoperation,without obvious discrepancy,the degree of postoperational pharyngeal ache,after follow-up visit 6-12 months,comparing the changes of snore,nasopharynx's backflow or missing deglutition and appearing cavum pharyngis coarctation( U =3.426,P ＜ 0.05 ),having outstanding discrepancy.ConclusionIt was not only to completely keeping uvula by using soft palate landscape orientation two fusiform cuts and enlarge two amygdales resection to treat OSAHS,but to enlarge soft palate shaping confines,not only effectively enlarging the ventilate's sectional area of cavum oropharyngeum,but preferably keeping the normal physiological morphology and function of cavum pharynges,avoiding the happening such as palatepharynx insufficiency complication etc.