Humans ; Hypertension, Pulmonary ; complications ; physiopathology ; Ventricular Dysfunction, Right ; etiology

Objective:To discuss the effect of improved supine position on the prevention of pressure injuries of emergency patients under observation and their comfort levels.Methods:A total of 114 patients in our Emergency Observation Ward were randomly divided into the intervention group and control group, 57 patients in each. Patients in the control group were treated with routine supine position and pressure injury prevention nursing; while patients in the intervention group were treated with improved supine position nursing intervention. Then, the incidence of pressure injury, its risk score and its comfort evaluation were compared between patients under observation in the two groups.Results:The incidence of pressure injury of the intervention group was obviously lower than that in the control group ( Z value was -2.426, P<0.05). The scores of sensation, humidity, activity, friction and shear force of patients in the intervention group were 3.36 ± 0.59, 2.92 ± 0.47, 3.21 ± 0.52 and 2.61 ± 0.29 respectively, which were significantly higher than those in the control group, specifically 2.87 ± 0.51, 2.24 ± 0.38, 2.76 ± 0.44 and 2.04 ± 0.32. The difference was statistically significant ( t value was 4.74-9.96, P<0.01). In addition, the scores of the physiological and psychological comfort level of patients in the prevention group were 15.41±2.49 and 27.26 ± 3.42 respectively, which were significantly higher than 11.01±1.97 and 22.14± 3.23 in the control group. The difference was statistically significant ( t value was 10.46, 8.21, P<0.05). Conclusions:The improved supine position nursing method can effectively lower the occurrence of pressure injury in emergency patients under observation and enhance patients’ comfort degree. Therefore, it is applicable to emergency patients under observation.

Objective To analyze the clinical,myopathological and genetic features in 5 female manifesting carriers of Duchenne muscular dystrophy (DMD).Methods The age of onset of these 5 patients were from birth to 54 years old,one of which had a family history of DMD.Two patients presented with proximal weakness,one with myalgia and dilated cardiomyopathy,one with limb weakness and ventricular septal defect,and one with exercise intolerance.Serum creatine kinase concentrations were between 1 000-31 815 U/L.Muscle biopsies were performed in 4 patients.Dystrophin gene mutation analyses were carried out in 5 patients by multiplex ligation-dependent probe amplification.Karyotype study was done in one patient who had no dystrophin gene mutation.Results Muscle biopsy revealed markedly decreased dystrophin expression in one patient and a mosaic pattern with some fibers lacking or partially expressing dystrophin in 3 patients.Four patients were identified carrying exonic deletions of dystrophin gene and one had t(x;5) (p21 ;p14).Conclusions The clinical manifestations and myopathological changes are more compatible with Becker muscular dystrophy.Chromosome translocation can be detected in Chinese female manifesting carrier.

The tissue-specific and MeJA-induced transcriptional levels of BcUGT3 and BcUGT6 in Bupleurum chinense were analyzed in the present study. The transcriptional levels of BcUGT3 in root, leaf, flower and fruit were similar and they all were higher than those in stem. The transcriptional level of BcUGT6 was the highest in leaf and the lowest in flower among in all tested tissues. With non-treated adventitious roots as control, BcUGT6's transcriptional levels were elevated to nearly 2 folds for 2 h, 8 h, 24 h, 2 d and 4 d in MeJA-treated adventitious roots of B. chinense. It showed that the transcriptional level of BcUGT6 was slightly affected by MeJA. While, BcUGT3's transcriptional levels were gradually elevated, and till 4 d after MeJA treatment, the expression level was about 7 folds than that of non-treated control. Using pET-28a (+), the expressions of two genes was investigated. Induced by IPTG, the target proteins were expressed in E. coli and then purified. All the results obtained in the present study will be helpful for follow-up bio-function analysis of BcUGT3 and BcUGT6.
Acetates ; pharmacology ; Bupleurum ; cytology ; enzymology ; genetics ; Cell Membrane ; metabolism ; Cyclopentanes ; pharmacology ; Escherichia coli ; genetics ; Gene Expression ; Gene Expression Regulation, Plant ; drug effects ; Hexosyltransferases ; chemistry ; genetics ; isolation & purification ; metabolism ; Intracellular Space ; metabolism ; Oxylipins ; pharmacology ; Protein Sorting Signals ; Protein Structure, Secondary ; Protein Transport ; Sequence Analysis ; Transcription, Genetic ; drug effects

The high molecular weight genomic DNA of yeast was extracted using three methods.Products were separated on agarose gel electrophoresis,quantified by spectrophotometer ND-1000 and restricted by EcoRⅠand MesⅠ.The result was shown that the genomic DNA extracted by modified benzyl chloride method was the best.The products of wild isolates supported it,too.This method was suitable for restriction of genomic DNA from yeast.

Objective To investigate the effects of radix salviae militiorrhizae (RSM) on acute lung injury induced by"two hits"and to study its probable mechanism.Method Thirty Wister rats were randomly divided into three groups:namely normal control group,model group and RSM treatment group.The model was created by"two-hits"in which 0.2 ml/kg oleic acid was injected into tail vein first,and then 2 mg/kg lipopolysaccharide was administered four hours later.After model rats sacrificed,the pathological changes of lung were observed,and lung wet/dry weight ratio,protein content,and the ratio of neutrophiles in brochoalveolar lavage fluid (BALF) were calculated.In addition,the expression of Fas,FasL protein and apoptosis were evaluated by immunohistochemical studies and TUNEL technique.Results The acute lung injury rat model was successfully induced by"two hits".The gross and micrographic injury of lung was milder in RSM treatment rats than in model rats.The W/D ratio,protein contents and the ratio of neutrophiles in BALF were also markedly reduced in comparison with model rats,while the expression of Fas and Fasl,and the apoptosis index in model rats were significantly increased compared with other two groups.Furthermore,it showed a positive correlation between the expression of Fas,FasL,and the number of cell with apoptosis.Conclusions RSM shows a protective effect on ALT rats caused by"two hits"likely reaulted from inhibiting the expressions of Fas and Fasl,which are associated with the cell apoptosis of lung tissue.

Objective: To explore the influencing factors for the primary and secondary school students with abnormal angle of trunk rotation for the prevention. Methods: The students of Grade Four to Nine in Jiashan County of Zhejiang Province were selected by cluster sampling method. A self-designed questionnaire was used to collect social demographic data, diet behaviors, physical activities, reading and writing habits. The angle of trunk rotation was measured by scoliometer. Logistic regression model was used to investigate the influencing factors for abnormal angle of trunk rotation. Results: This study included 2 942 schoolchildren, with 1 582 ( 53.78% ) boys and 1 360 ( 46.23% ) girls. The incidence rate of abnormal angle of trunk rotation was 7.82%. The incidence rate of abnormal angle of trunk rotation in girls was 10.74%, which was higher than 5.31% in boys ( P<0.05 ). Grade ( OR=1.485, 95%CI: 1.058-2.085 ), gender ( OR=2.084, 95%CI: 1.536-2.828 ), frequency of eating fresh vegetables in the past week ( OR=0.749, 95%CI: 0.633-0.887 ) and watching electronic screen in the dark ( OR=1.188, 95%CI: 1.002-1.408 ) were the influencing factors for abnormal angle of trunk rotation in primary and secondary school students. Grade ( OR=2.664, 95%CI: 1.481-4.791 ) and watching electronic screen in the dark ( OR=1.325, 95%CI: 1.030-1.704 ) were influencing factors for abnormal angle of trunk rotation in boys. Frequency of eating fresh vegetables in the past week ( OR=0.714, 95%CI: 0.574-0.887 ) and uncorrected eyesight less than 5.0 ( OR=1.795, 95%CI: 1.164-2.767 ) were influencing factors for abnormal angle of trunk rotation in girls. Conclusion The abnormal angle of trunk rotation in primary and secondary school students is related to gender, grade, reading and writing behaviors as well as diets; and the influencing factors are different in male and female students.

Objective To evaluate the protective effect and mechanism of luomaishutong(LMST)on acute myocardial ischemia-reperfusion injury in rabbits.Method Twenty-four New Zealand white rabbits were randomly divided into 3 groups:the LMST group,the control group and the sham-operated group.The AMI reperfusion model was established by removing the blockade after the occlusion of coronary artery for 2 hours.The changes of hemodynamics,oxygen free radical and clearance system were measured in all rabbits.Results (1)Compared with the control group,left ventricular systolic pressure(LVSP)and maximal changing rate of left ventricular innner pressure(?dp/dt_(max))increased remarkably in the LMST group after reperfusion,meanwhile, LVEDP decreased significantly.(2)In the control group,MDA level of cardiocyte was noticeably higher,while SOD and NOS levels were lower than in the sham-operated group.Compared with the control group,MDA level in the LMST group was significantly lower.Furthermore,SOD and NOS levels were higher in LMST group,and the infarcted area was smaller in the LMST group as well.Conclusions LMSF can protect myocardium after ischemia-repcrfusioninjury and improve cardiac function through inhibiting induced by oxygen free radicals.

According to the training requirement of the biological-psycho-social medical model to the clinical medical students,in order to promote the comprehensive improvement of medical students' professional knowledge,hands-on ability and human qualities,we design the course of introduction to clinical medicine.Through six major functional modules such as basic professional quality,clinical diagnosis basic technology,basic skills related to the operation,the new progress in clinical medicine and technology,clinical nursing and medical relationship,and medical information management,we build up the core content of integrated course of introduction to clinical medical.In this way,the clinical and related basic knowledge and skills are integrated,the clinical course is closely connected with the basic curriculum,the medical and the humanities exchanges.Through this design,the foundation is laid out for the collaborative efforts of the organ-system of integrated curriculum reform.

OBJECTIVETo detect the influence of mannitol on cerebral blood flow of post-resuscitation children by transcranial Doppler (TCD).

METHODSThe blood flow changes of left side middle cerebral artery (MCA) and extracranial internal carotid artery (EICA) were monitored by TCD in 21 post-resuscitation children. TCD waveforms, peak velocity (Vp), diastolic velocity (Vd), mean velocity (Vm) and pulsitility index (PI) of MCA and EICA were monitored daily and 30 minutes before and after the first dose of mannitol. Glasgow scores were estimated in the meantime. The patients were divided into 2 groups according to the patterns of diastolic flow. Patients in group I showed no diastolic flow or retrograde diastolic flow (n = 9), and patients in group II had positive diastolic flow (n = 12).

RESULTSVp, Vd, Vm, PI of MCA and EICA in group I patients had no significant change after the administration of mannitol and the Glasgow scores were much lower than that of group II patients (P < 0.05). TCD waveforms showed no improvement in group I patients and their outcomes were poor. Vd, Vm and Vp of MCA and Vd of EICA in group II patients increased, PI of MCA decreased (P < 0.05), while Vp, Vm, PI of EICA had no significant change. TCD waveforms recovered within one week. All the patients in this group survived.

CONCLUSIONSThe results suggested that mannitol could improve cerebral perfusion in patients with mild brain damage. These patients usually had increased diastolic blood flow in the early stage. Lack of or retrograde diastolic flow of TCD waveforms might be associated with severe brain damage with poor outcome. Mannitol had no effect on improving cerebral blood flow in these patients.

Adolescent ; Blood Flow Velocity ; Cardiopulmonary Resuscitation ; Cerebrovascular Circulation ; drug effects ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Mannitol ; pharmacology ; Middle Cerebral Artery ; physiopathology ; Ultrasonography, Doppler, Transcranial ; methods