Objective This study was carried out in order to analyze genetic diversity in plants of Dendrobium Sw. and compare the marker index (MI) between SRAP and RAPD markers. Methods Using 40 SRAP primer combinations and 36 RAPD primers,the genetic diversity of the materials in Dendrobium Sw. was amplified. Results A total of 1 977 loci were generated by 40 SRAP primer combinations,of which 90.2% was polymorphic and the genetic similarity (GS) ranged from 0.330 2 to 0.789 2. As for RAPD,281 bands were obtained,in which 87.1% was polymorphic,and the GS was from 0.494 2 to 0.773 1. There were some differences existing in the two cluster results revealed by SRAP and RAPD markers,they were as follows:compared to that of RAPD,the result of SRAP could more comfortably reflect the kinship and geographical origin,simultaneously conform to the traditional classification. For the experiment materials,SRAP (16.46) got an MI value 4.5 folds higher than that of RAPD (3.67),which meant SRAP markers were more effective in detecting genomic polymorphisms in the plants of Dendrobium Sw. Conclusion These results show that SRAP and RAPD could be applied to detecting genetic diversity analysis of plants in Dendrobium Sw. SRAP Also shows great superiority and advantage in this study.

Objective To explore the clinical effect of continuous infusion of dopamine and furosemide on elderly patients with refractory heart failure.Methods 76 elderly patients with heart failure were selected as the observation subjects,they were randomly divided into observation group and control group,38 cases in each group.The control group was given oxygen inhalation,the expansion of vascular,cardiac and other conventional treatment.The observation group was given conventional treatment and continuous infusion of dopamine and furosemide.Clinical efficacy and cardiac function improvement were compared between the two groups.Restlts The effective rate of observation group was 92.1％,which was higher than that of the control group (73.7％) (x2 =10.29,P ＜ 0.05).After treatment,the improvement of cardiac function between the two groups had significant difference (t =15.94,10.18,all P ＜0.05).Conclusion Continuous infusion of dopamine and furosemide in treatment of elderly patients with refractory heart failure could improve heart function,enhance curative effect.

Objective To investigate the usefulness of HC visual laryngoscope designed for unskilled junior emergency resident doctors in respect of increasing the efficiency and success rate of emergency tracheal intubation.Methods A total of 80 patients needed the emergency tracheal intubation were at first divided into two groups randomly (random number).Patients in group A were operated by junior emergency resident doctors and patients in group B were operated by well experienced attending doctors.Then,the two groups of patients above were divided into two groups randomly (random number).Patients in group N were operated with conventional laryngoscope and patients in group HC were managed with HC visual laryngoscope.Then comparisons of the success rate of glottis exposure,the one-time success rate of tracheal intubation,the success rate of tracheal intubation,the complications,the number of attempt in successful intubation cases and the operative time consumed for successful intubation cases among the groups were done.Results (1)The success rate of glottis exposure,the one-time success rate and the success rate of tracheal intubation in group A-HC were 90%,70% and 90%,respectively which were significantly higher than those (50%,20% and 45%)in group A-N (P <0.05).The rate of complication,the number of attempt and operative time consumed for intubation cases in group A-HC were respectively 15%,(1.28 ± 0.43)and (31.44 ±5.06 ) s,which were significantly less than those [45%,(1.89 ±0.79 )and (45.89 ±4.99) s in group A-N (P <0.05 ).(2)The success rate of glottis exposure,the one-time success rate and the success rate of tracheal intubation in group B-N were 80%,65% and 80%, respectively which were significantly higher than those (50%,20% and 45%)in group A-N (P <0.05). The rate of complication,the number of attempt and operative time consumed for successful intubation cases in group B-N were 15%,(1.25 ±0.41)and (39.31 ±4.23)s,respectively which were significantly less than those [45%,(1.89 ±0.79)and (45.89 ±4.99)s]in group A-N (P <0.05).(3)There were no significant statistical differences in above results between group A-HC and group B-HC (P >0.05 ). Conclusions HC visual laryngoscope used by unskilled junior emergency resident doctors for emergency tracheal intubation,could increase success rate of glottis exposure,decrease the number of attempt of intubation,decrease rate of complication,shorten operative time required for intubation thus improving efficiency and success rate of emergency tracheal intubation,and maybe narrow the skill gap between unskilled junior resident doctors and well experienced attending doctors in respect of emergency tracheal intubation.

Objective To discuss the ethical necessity and feasibility of implementing multiple comprehensive psychological intervention measures in intensive care unit (ICU), and to investigate the effect of the measures on treatment compliance. Methods The conscious adult patients hospitalized in emergency ICU (EICU) of the Second Affiliated Hospital of Xi'an Jiaotong University from 2015 to 2017 were enrolled, and divided into control group and intervention group according to random number table, with 40 patients in each group. Patients in control group were treated with routine care and routine diagnosis and treatment, and patients in intervention group were treated with the help of psychologists and with multiple comprehensive psychological intervention measures (including nursing care, medical treatment, family and management) based on routine care and routine diagnosis and treatment. After 5 days of intervention, the treatment compliance, the medical coping attitude and the mental health were assessed respectively using the Treatment Compliance Scale, the Medical Coping Modes Questionnaire (MCMQ) and the Symptom Checklist Scale (SCL-90), and then comparation were done between the two groups. Results After 5 days of intervention, 3 patients in the control group and 4 patients in the intervention group withdraw the study because of the change of illness, and at last 37 patients in the control group and 36 in the intervention group were enrolled. There was no significant difference in basic data such as gender, age, education level, disease, course of disease, the length of EICU stay, and acute physiology and chronic health evaluationⅡ (APACHEⅡ) score between the two groups. The scores of treatment compliance in intervention group was significantly higher than that in control group (2.89±0.67 vs. 2.32±0.91, P < 0.01). Compared with the control group, the "confrontation" dimension score of the MCMQ questionnaire in intervention group was significantly increased (19.75±2.08 vs. 18.62±2.65, P < 0.05), while the "avoidance" and"surrender" dimensions scores were significantly decreased (14.22±1.91 vs. 15.14±1.92, 8.83±1.54 vs. 9.73±2.10, both P < 0.05). In the SCL-90 scale, the scores of the 5 factors such as "somatization", "interpersonal sensitivity","depression", "anxiety" and "photic anxiety" in intervention group were significantly less than those in control group (1.59±0.38 vs. 1.81±0.37, 1.72±0.40 vs. 1.93±0.42, 1.76±0.32 vs. 1.92±0.29, 1.82±0.40 vs. 2.14±0.40, 1.44±0.30 vs. 1.60±0.38, all P < 0.05), while there was no significantly difference in the scores of the other 4 factors as "obsessive-compulsive symptoms", "hostile", "bigotry" and "psychoticism" between the two groups (all P > 0.05). Conclusion The multiple comprehensive psychological intervention measures used for ICU conscious patients could improve the treatment compliance, make the patients' medical coping attitude more active and improve the mental health of the patients, so it has ethical necessity and certain feasibility.

In order to overcome the defects of the motor function evaluation systems contained in current tele-rehabilitation devices, such as inconvenient, incomplete of measurement position, nonstandard and lacking of humanized design, we designed and developed a tele-rehabilitation gradient motor function self-evaluating system in this paper. Based on Brunnstrom stage, this system which was competitive comparing to manual evaluations, common tele-rehabilitation assessments and similar nonmedical products, realized the quantitative motor assessment for both limbs of stroke patients using the self-developed algorithms. The clinical trials proved that the system was feasible and accurate.
Algorithms ; Clinical Trials as Topic ; Humans ; Research Design ; Stroke ; Stroke Rehabilitation ; Telerehabilitation