Objective　To establish the method of noninvasive measuring the new indexes of cardiac functions by echocardiography and illustrate the diagnostic values of the indexes.Methods　By use of simultaneous screen display of echocardiography, phonocardiography and electrocardiography and synchronously monitoring blood pressure (BP) technique, the values of LV end-systolic and end-diastolic long and short- axis dimensions, wall thickness and area sizes,and synchronous BP were measured in the patients with myocardial infarction (MI) of defferent sites and area sizes before and during BP were altered to defferent degrees. The values of maximum elasticity (Emax) and average maximum myocardial elasticity stiffness (maxEav) and ejection blood fraction (EF) were calculated through computer programmed process.Results　The order of values of Emax,maxEav and EF among MI patients of defferent sites was control group>inferior MI group>anterior MI subgroup>multi-wall MI subgroup. Their order among MI patients of defferent area sizes was control group > small area MI subgroup > larger MI subgroup. Emax was associated with the MI parts and 　maxEav was associated better with the MI area sizes.Conclusions　The study has established a noninvasive method of examining cardiac function by use of echocardiography and reflected the special diagnostic values of Emax,maxEav and EF in MI patients of defferent parts and area sizes.

Objective To observe the therapeutic efficacy and safety of acupuncture and epidural anesthesia during full-term labor. Method A total of 199 eligible subjects experiencing natural labor were randomized into four groups. The acupuncture group was intervened by acupuncture at acupoints; the epidural group was given epidural anesthesia;the combined analgesia group was given acupuncture at acupoints plus epidural anesthesia; the control group was not given any interventions for analgesia. The Visual Analogue Scale (VAS) was adopted to record and compare labor pain (cervix dilation 3 cm at 0 min, 30 min, and 60 min, and at full cervix dilation); meanwhile, the active period of the first stage of labor, cervix dilation speed, the second stage of labor, Caesarean section (C-section) rate, instrumental delivery rate, Apgar score, and post-labor bleeding amount (2 h) were also recorded. The contents of blood β-endorphin (β-EP) and 5-hydroxytryptamine (5-HT) were monitored during the first stage of labor. Result Compared with the control group, the VAS scores dropped in the other three groups, and the decreases were similar in the epidural group and combined analgesia group, while the decrease in the acupuncture group was the least significant. Regarding the labor-related indexes, the cervix dilation speed was higher in the acupuncture group than in the control group(P<0.05), while there was no significant difference between the acupuncture group and control group in comparing the duration of the second labor stage(P>0.05). There were no significant between-group differencesin comparing the post-labor bleeding amount and Apgar score of the new-born babies(P>0.05), but compared with the epidural group, there was no use of assisted delivery. The content of blood β-EP during the first stage of labor increased in the acupuncture group and combined analgesic group(P<0.05), but there were no significant changes in the epidural group and control group(P>0.05). Conclusion Acupuncture analgesia can reduce labor pain and shorten labor duration without affecting the second stage of labor and security-related indexes.

Objective To explore the control effect of proactive monitoring on senile stroke women with Escherichia coli infection caused by indwelling catheter.Methods From October 2011 to September 2012 elderly female stroke patients with indwelling urinary catheter were chosen in the department of neurology and were given proactive monitoring,which included the following:management of antibiotics has been humanized,urinary catheter care used first-cleaning and then disinfection method,pathogen monitoring professionals directly went to the bacteria room for obtaining information.The monitoring results were compared with those last year.Results The urinary Escherichia coli infection in monitoring popu-lations declined sharply,Escherichia coli infection rate reduced from 20.5％ to 3.6％.The urinary infection rate in hospitalized patients reduced from 10.8％ to 5.7％ respectively.The preventive application of an-tibacterial drugs greatly reduced from 70.0％ to 24.7％.The nursing staff all mastered the nursing method of the catheter.Conclusions To give proactive monitoring to senile stroke women with indwelling urinary catheter can control Escherichia coli and other bacteria induced urinary infection due to indwelling catheter significantly,demonstrate a deterrent effect on unreasonable application of antibiotics,which can be recommended to control other indwelling catheter induced urinary hospital infection.

AIM:To study intravenous transplantation of human mesenchymal stem cells (hMSCs) on the life span and pathological change of SOD1-G93A amyotrophic lateral sclerosis (ALS) mice. METHODS:hMSCs were cultured and expanded from heparinized bone marrow cells from healthy donors and the purity and features were identified with FCM. hMSCs (3×10~6) resuspended in 0.3 mL DMEM or 0.3 mL DMEM only were injected into the tail vein of genotyped SOD1-G93A ALS mice. The mice were evaluated for signs of motor deficit with 4-point scoring system according to Weydt and the onset and life span were assessed. The pathological change was observed with Nissl staining and number of motor neuron was counted. RESULTS:The onset symptoms in untreated SOD1-G93A ALS mice appeared at (156.6±3.6) d of age and the average life span was (188.3±3.5) d. hMSCs transplantation delayed the onset of ALS type symptoms about 14 d and prolonged the life span about 18 d compared to the untreated SOD1-G93A littermates. The loss of motor neurons in untreated mice was much faster and severer than that in hMSCs transplanted mice. At 16 th week and 20 th week,motor neurons of untreated mice were significantly fewer than those of transplanted mice. β-globin gene in brain was detected in transplanted ALS mice. CONCLUSION:hMSCs migrate to central nervous system after intravenous transplantation,prolong the life span and delay the onset and motor neuron loss in SOD1-G93A ALS mice.

This paper provides a brief overview of the current research activities which focused on the bio-application of gold magnetic nanocomposite particles. By combining the magnetic characteristics of the iron oxide core with the unique features of nano-gold particles such as targeting by surface modification and optical properties, such composite nanoparticles have a wide range of applications in cancer hyperthermia, CT and MRI imaging, bio-separation, bio sensors, gene diagnosis, drug targeting and many other biomedical fields.
Diagnostic Imaging ; Drug Delivery Systems ; Ferric Compounds ; chemistry ; Gold ; chemistry ; Humans ; Magnetics ; Nanocomposites ; chemistry ; Nanoparticles ; chemistry ; Neoplasms

Objective To study the effects of Fructus ligustri lucidi and its monomers, tyrosol and oleanotic acid, on the migration of mouse melanoblast cell line (NCCmelb4M5). Methods Cultured NCCmelb4M5 cells were treated with Fructus ligustri lucidi (0.0625, 0.125, 0.25, 0.5, 2 mg/mL), tyrosol (0.02, 0.04, 0.08, 0.16, 0.8 mg/mL) and oleanolic acid (0.0625, 0.125, 0.25, 0.5, 2.5 mg/mL), respectively,for 48 hours followed by the detection of cell proliferation with MTT assay. The working concentration of the three drugs was determined according to the results of MTT assay. Scratch and transwell assays were performed to observe the effect of Fructus ligustri lucidi and its monomers at working concentration on the migration of NCCmelb4M5 cells. Results Based on the results of MTT assay, the working concentration of Fructus ligustri lucidi, tyrosol and oleanolic acid was determined at 0.125 mg/mL, 0.08 mg/mL and 0.0625 mg/mL respectively, and at these concentrations, these drugs exhibited a cytotoxity lower than that of absolute alcohol with no obvious stimulation of cell proliferation. Scratch and transwell assay revealed a promoting effect of both Fructus ligustri lucidi and tyrosol on melanoblast migration (P<0.05), while oleanolic acid had little effect on melanoblast migration. Conclusions The extract of Fructus ligustri lucidi has a significant stimulatory effect on the migration of mouse melanoblasts, and tyrosol may be an active component of Fructus ligustri lucidi associated with confirmative effect on migration of mouse melanoblasts.

Objective To study the changes of life span and pathology in superoxide dismutase 1 (SOD1)-G93A mice after intracardiac transplantation of human mesenchymal stem cells (hMSCs).Methods hMSCs were isolated from bone marrow cells obtained from healthy donors and cultured.The purity and morphology were assessed by flow cytometry (FCM).hMSCs (3×10~6) resuspended in 0.2 ml DMEM was injected into the heart of 8 week-old SOD1-G93A mice.In non-transplantion control SOD1-G93A mice, only DMEM was injected.The mice were evaluated for signs of motor deficit with 4-point scoring system previously described by Weydt et al.The age of onset and life span in mice were assessed.The pathological change including number of motor neurons was investigated by Nissl staining.Immunofluorescence staining with specific human nuclear antibody was used to confirm the transplant of hMSCs in mice.Results The onset symptoms in untreated SOD1-G93A mice appeared at (156.56±3.60) days of age and the average life span was (188.32±3.51) days.hMSCs transplantation delayed the onset of ALS type symptoms about 16 days (x~2=10.888, P=0.001) and prolonged the life span about 14 days compared to the untreated SOD1-G93A littermates((202.19±4.09) days vs (188.32±3.51) days, x~2=3.917, P=0.04).The loss of motor neurons in untreated mice was earlier and more severe than in hMSCs transplanted mice.At 20 weeks, the number of motor neurons in transplanted mice was significantly higher than those in untreated mice.Human specific nuclear antigen in brain and spinal cord was detected in transplanted SOD1-G93A mice.Conclusion hMSCs can be implanted for a long-term into central nervous system by intracardiac transplantation and the transplantation can prolong life span, and delay the onset of the disease and motor neuron loss in SOD1-G93A mice.

Objective: To explore the relationship between post-stroke depression and coping style and social sustian for guiding psychological intervention.Methods: A control study was done in 78 patients with post-stroke depression and 65 patients with non-post-stroke depression by using Medical Coping Modes Questionnaire and Social Sustian Scale.Results: The score of confrontation was lower and that of resignation was significantly higher in depression group than in non-depression group(P

Rat models with common peroneal nerve injury were treated with modified Decoction for Invigorating Yang orally to observe its effect on the nervous functional recovery after peripheral nerve injury. The result showed that the motor nerve conduction velocity of the drug group during the whole observation period was higher than that of the control group (p