Objective : To investigate the efficacy and safty of radiofrequency ablation for arrhythmia. Methods: The clinical data of 1 065 patients with arrhythmia by Radiofrequency ablation treatment were analyzed retrospectively, including 537 cases of atrioventricular nodal reentrant tachycardia, 386 cases of atrioventricular reentrant tachycardia, 59 cases of ventricular premature, 26 cases of ventricular tachycardia, 35 cases of atrial flutter, and 8 cases of paroxysmal atrial fibrillation. Results:The procedural succeed rate was 96. 80% , and complication was 1. 56%. Conclusion: Radiofrequency ablation was an safe and effective method in treating arrhythmia.

AIM: To estimate the antiasthmatic activity of new compounds: SDF-1, SDG-1 and SDG-3. F-1 is a furoxan derivative, G-1 and G-3 are hydroxylguanidine derivatives, SDF-1 is a novel seratrodast derivative connected with F-1, SDG-1 a seratrodast derivative connected with G-1, and SDG-3 a novel seratrodast derivative connected with G-3. METHODS: Firstly, the in vivo antiasthmatic activity was estimated in asthmatic guinea pigs induced by acetylcholine and histamine. Secondly, the in vitro NO releasement of these compounds was determined following the procedures of Griess. Finally, tracheal smooth muscle relexant potency of these compounds was evaluated on trachea of guinea pigs. RESULTS: The in vivo antiasthmatic activity of SDF-1 was more potent than seratrodast (P

Objective To explore changes of expression of pro-and anti-inflammatory cytokines in the hippocam-pus of Aβ1-42-induced Alzheimer’s disease (AD) rat model. Methods Twenty-four SD rats were divided into control group, PBS group (PBS was injected into CA1 area of hippocampus) and AD model group (Aβ1-42 was injected into CA1 area of hip-pocampus). The escape latency was evaluated by Morris water maze in three groups. Nissl staining was used to detect the le-sions of hippocampal CA1 neurons. Levels of amyloid precursor protein (APP) and protein phosphatase 2A (PP2A) in hippo-campus were measured by Western blot analysis. Real-time PCR was employed to examine the expressions of pro-inflamma-tory cytokines, including interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ), and the mRNA expressions of anti-inflammatory cytokines, including IL-4, IL-10 and transforming growth factor-β(TGF-β). Re-sults Rats subjected to Aβ1-42 injection in bilateral hippocampus led to a ability reduction of learning and memory, a loss of neurons in hippocampus and an increase in the expression of APP, and a decrease in PP2A expression in the hippocampus. In AD hippocampus, The mRNA expressions of the pro-inflammatory mediator, IL-1β, TNF-αand IFN-γ, were significant-ly up-regulated, but the expressions of the anti-inflammatory cytokines, IL-4, IL-10 and TGF-β, were markedly down-reg-ulated in AD group compared with those of control and PBS groups. Conclusion The pro-inflammatory/anti-inflammatory imbalance induced neuro-inflammation in AD rats, which was involved in pathogenesis of AD.

Objective To retrospectively review the epidemiological data from 159,242 patients hospitalized after traumatic brain injury in traffic accidents and provide epidemiological evidences for the prevention and treatmentmeasures.Methods Patient data were collected using the Chinese Trauma Database for the years 2001-2007.Epidemiological features of age,gender,time distribution,length of hospital stay,state of injury,and treatment outcome were recorded.Results Age of the patients was (33.01 ± 15.20) years and ratio of male to female patients was 2.39∶ 1.The majority were aged 21-50 years with the 31-40 age group were more vulnerable.Annual average growth of age was 3.92％.Within a year,number of the patients accounted for 54.10％ from July to December with it reached the peak in October.Mean length of stay was 20.20 days with the longest stay in the ≥90 age group and shortest stay in the ≤10 age group.Mean hospital charges was 13 689.8 yuan with the ≤10 age group occupying the least and 51-60 age group occupying the most.Overall cure rate was 66.92％ and mortality was 4.22％.Proportion of severe traumatic brain injury in traffic accidents increased and related cure rate decreased with increased age.Male patients showed higher death rate and lower cure rate compared with female patients.Conclusions Incidence of traffic accidents-related traumatic brain injury is the most in the young and middle-aged population and is prevalent in the second half year.There should be emphasis on the aged or male patients.Measures to prevent and treat the injury may produce better results when defined based upon these epidemiologic features.

Objective To explore the role of Th17-and Treg-derived catecholamines during collagen-induced ar?thritis (CIA) progression. Methods Eighteen male DBA/1 mice were randomly divided into control group, CIA model groupⅠ(day 35) and CIA model groupⅡ(day 55). The CIA models were induced by typeⅡcollagen (CⅡ) injection from tails. mRNA expression of Th17 specific transcription factor include ROR-γt, cytokines, IL-17 IL-22, Treg specific transcription factor, Foxp3, cytokines, TGF-βand tyrosine hydroxylase (TH) in lymph nodes were examined by real-time PCR. Co-local?ization of ROR-γt or Foxp3, with TH, vesicular monoamine transporter-2 (VMAT-2) or monoamine oxidase (MAO) in lymph nodes were observed by immunofluorescence staining. Results In lymph nodes of mice in CIAⅠgroup and CIAⅡgroup, mRNA expression of ROR-γt, IL-17, TH and IL-22 were upregulated, while mRNA expression of Foxp3 and TGF-βex?pression was downregulated compared to those expression in control group. The upregulated expression of IL-17 was signifi?cantly reduced in CIAⅡgroup compared with that in CIAⅠgroup. In the lymph nodes of both intact and CIA mice, co-lo?calization of ROR-γt or Foxp3 with TH, VMAT-2 or MAO was seen in some cells. The numbers of cells that are double-pos?itive of ROR-γt/TH,ROR-γt/VMAT-2 and ROR-γt/MAO IL-17 were increased in CIA groups compared to those in con?trol group. And they are significantly reduced in CIAⅡgroup compared with those in CIAⅠgroup. Conclusion The abili?ty to synthesize catecholamines in Th17 cells was increased in lymph node in mice from CIA groups compared to that in con?trol group. The increased catecholamines production from Th17 cells in lymph nodes may be involved in the anti-inflammato?ry progression in CIA.

In the context of the combination of education for clinical medicine graduates and standardized training of resident doctors,the professional psychological quality of clinical medical postgraduates is confronted with a test.The professional psychological quality education is not only related to the professional development of medical graduate studlents,but also to the realization of the goal of training talents in medical colleges,even to the people's life and health.Medical institutions and relevant teaching hospitals can,through strengthening the psychological education system,promote the occupation education,carry out rich and colorful educational activities,strengthen employment guidance,and improve the security policy to improve the medical personnel quality,and promote the comprehensive reform of the medical and health education.

Objective To study on the effect of nttrsing intervention on coping with fatigue in patients with cervical spine fracture and high paraplegia.Methods 46 patients who suffered cervical spine fracture with paraplegia were divided into the control group and the intervention group with 23 patients in each group randomly.The control group received routine care in general,while the intervention group was given additional systematic nursing intervention by full-time nurses.The brief fatigue inventory(FSI),as fatigue assessment tools,was used to assess the fatigue of patients in the two groups before invention and 20 days after invention respectively.Results As a result,we found that the difference of fatigue between the two groups had no prominent significance before intervention,but after invention the difference had prominent significance.Conclusions The nursing intervention is very important for patients with cervical spine fracture and paraplegia and has significant advantages to alleviate or eliminate patients' fatigue and improve their quality of life.

Purpose　The aim is to compare the sterols in Hericium crinaceus ethanol extract and water extract from solid fermented hyphae and to study the pharmaceutical chemical basis of the different medicinal effects. Methods　The nonsaponifiable lipids were isolated by saponification.The sterols were then detected by TLC and RP-HPLC.Results　The content of sterols in ethanol extract was found to be higher than that in water extract.And one type of sterols from Hericium erinaceus hyphae was identified as ergosterol.Conclusion　Due to ergosterol′s multifunction in biological activities,it may well be one of the active components of hyphae.And higher content of lipids, especially sterols may be one of the reasons for the better medicinal effect of ethanol extract than water extract.

Objective To study the effect of early enteral nutrition on stress ulcer in patients with severe craniocerebral injury.Methods 134 patients with severe craniocerebral injury were randomly divided into two groups,the early enteral nutrition group (the EEN group,69 cases) was given nasogastric intubation feeding after hospitalization or within 24 hours postoperation,the delayed enteral nutrition group (the DEN group,65 cases) was given nasogastric intubation feeding 24 hours postoperation.The incidence of upper gastrointestinal bleeding in two groups were compared.Results The incidence of upper gastrointestinal bleeding in the EEN group was significantly lower than that of the DEN group.Conclusions Patients with severe brain injury should be given enteral nutrition as soon as possible to reduce the occurrence of stress ulcer and prevent upper gastrointestinal bleeding.

Objective To investigate the effects of human amniotic membrane on the survival of the crossboundary perforator flap in rats through distal subcutaneous implantation.Methods From February,2016 to December,2016,38 SD rats weighing 270-300 g were randomly divided into experimental group and control group (n=19).A three-territory perforator flap (3 cm× 10 cm) with the iliac artery as the pedicel elevated on the right dorsum of the rats.Experiment group,a section of amnion was sutured to the distal subcutaneous of the flap and then the flap was sutured back to its donor site.Control group,after the flap elevated,directly sutured back to its donor site.The blood flow of the pedicel were detected by laser Doppler flowmetry at the day before surgery,1 day after surgery,3 and 7 days after surgery,with 3 rats in every group.When the rats were anesthetized,biopsies were taken from the choke area Ⅱ at the day before surgery,3 and 7 days after surgery,with 9 rats in every group.When the rats were anesthetized,HE was used to compare the diameter size of the artery and vein at the same site.At day 7,measure the survival area of the flap,and 3 of them observe the vessel of the flap by lead oxide-gelatine technique.Results The survival rate of the experimental group and the control group after 7 days were (89.09±4.23)％ and (74.56-±5.59)％ respectively,the experimental group was significantly higher than that of the control group (t=5.48,P=0.00).X-ray showed that 7 days after operation,the pedicel of iliac artery in the experimental group was bigger than that in the control group.The blood flow detection showed that the blood flow of the experimental group was higher than that of the control group (t=2.39,3.06;P=0.03,0.00,respectively) at day 1 and day 3 after surgery.Hematoxylin eosin staining showed that arteriovenous tube diameter at the Choke Ⅱ were gradually increased on the day3 and day7 after surgery in both group,but the experimental group diameter expanded multiple was higher than that of control group (t=3.52,3.50;P=0.02,0.02,respectively).Conclusion Human Amnion subcutaneous embedding may improve the blood flow of the vascular pedicle,expand the microvascular at Choke area Ⅱ,improve microcirculation,as a result to promote the survival of cross perforator flap,while the mechanism is needed to understanding.