Objective To investigate the effect of elispheric motion on balance and walking ability of hemiplegic patients after stroke. Methods From September to December, 2016, 40 hemiplegic patients after stroke were randomly divided into control group (n=20) and ob-servation group (n=20). Both groups received conventional rehabilitation, additionally, the control group received juggling ball training, and the observation group received elispheric motion combined with juggling ball training, 20 minutes a day, six days a week for six weeks. They were assessed with the Fugl-Meyer Assessment-Sensory (FMA-S), Fugl-Meyer Assessment-Lower Extremity (FMA-LE), Berg Bal-ance Scale (BBS) and TimedUp and GoTest (TUGT) before and six weeks after training. Results After training, the scores of FMA-S, FMA-LE, BBS significantly increased (t>10.012, P<0.05) in both groups, and were higher in the observation group than in the control group (t>2.129, P<0.05);the time of TUGT significantly shortened (t>10.001, P<0.001) in both groups, and were shorter in the observation group than in the control group (t>4.669, P<0.05). Conclusion Elispheric motion can facilitate to improve the balance and walking ability of hemi-plegic patients after stroke.

Objective To observe the effects of repetitive transcranial magnetic stimulation (rTMS) combined with abdominal muscle electrical stimulation on the pulmonary ventilation of patients with cervical spinal cord injury.Methods Twenty-five patients with cervical spinal cord injury were randomized into an experimental group (n =13) and a control group (n =12).The control group was given comprehensive rehabilitation treatment,including upper limb movements,standing training and training of respiratory function,while the experimental group was given repetitive transcranial magnetic stimulation and abdominal muscle electrical stimulation in addition to the comprehensive rehabilitation treatment.The patients' maximum lung capacity (VC),forced expiratory volume for 1 second (FEV1),peak expiratory flow rate (PEF) and tidal volume (VT) were measured at the outset and after 3 months of treatment.Results The lung function indexes increased in both groups after treatment,but each index improved significantly more in the experimental group,on average,than in the control group.Conclusion As a supplement to routine respiratory function training,repetitive transcranial magnetic stimulation combined with abdominal intermediate frequency electrical stimulation can improve the pulmonary ventilation function of patients with middle and lower cervical spinal cord injury.

Objective To investigate the influence of citalopram on the fast response action potential,slow response action potential,in vitro electrocardiogram(ECG) and in vivo ECG of cardiac myocytes,and explore its mechanism of adverse cardiac effects. Methods Conventional microelectrode technique was employed to record the fast and slow response action potentials of the isolated papillary muscles of guinea pigs.In vivo and in vitro ECG were recorded from anesthetized animals and Langendorff-perfused hearts,respectively. Results Citalopram could prolong the RR interval and QRS duration of in vivo ECG.The premature ventricular contraction and atrial ventricular block were induced by 12.5?10-6 mol/L citalopram.The maximum ascending velocity of 0 phase(Vmax),action potential amplitude(APA) and action potential duration(APD50 and APD90) were dose-dependently decreased by citalopram in the fast and slow response action potentials of guinea pigs,respectively. Conclusion Citalopram can inhibit sodium and calcium channels effectively,which may be the ionic mechanism that citalopram induces arrhythmia in the clinical practice.

Diabetic ulcer (DU), one of the common and serious complications in patients with diabetes mellitus, often leads to infection, necrosis and amputation, and has a long and costly treatment period. Because of DU's unclear healing mechanism and the difficulty of delayed healing, its treatment and management have been a major challenge in clinical medicine. In recent years, the potential role of mitochondrial autophagy in DU has become a research hotspot with the in-depth study of mitochondrial autophagy mechanism. Previous studies have shown that mitochondrial autophagy is an important intracellular self-repair mechanism that plays a crucial role in maintaining cellular health and functional stability. During the development of DU, mitochondrial autophagy plays multiple roles in attenuating oxidative stress and inflammatory responses, maintaining mitochondrial functional homeostasis, influencing cell proliferation and repair capacity during DU healing, promoting DU healing, and enhancing antimicrobial capacity. In this paper, we illustrate the multiple roles played by mitochondrial autophagy in DU prevention and treatment, as well as the potential applications of mitochondrial autophagy in DU therapy. It is expected to provide a basis for the clinical application of mitochondrial autophagy in DU treatment, and provide more effective strategies and solutions for the treatment of DU.

ObjectiveTo observe the relationship between astrocytes and neurons in rat's medulla oblongata after exposed to 8Hz, 90dB/130dB infrasound for different times. MethodsRats were exposed to 8Hz, 90dB/130dB infrasound for 2 hours per day.At the 1st,7th,12th,21th and 28th day, the expression of glial fibrillary acidic protein (GFAP) and Fos in medulla oblongata were detected using double-labling immunohistochemical method.Results GFAP-positive astrocytes and Fos-positive neurons were increased after exposure for one time. They showed similar topographic localization and formed close relationship. Their number increased as the exposure times increasing, and decreased gradually after 14 days. The reaction of 130dB group was stronger than that of 90dB group.Conclusions 8Hz, 90dB/130dB infrasound can activate both astrocytes and neurons in rats' medulla oblongata which might participate and regulate the response to infrasound.

AIMTo determine the feasibility of establishing the heterologous expression model of human- serotonin transporter(hSERT or 5-HTT).

METHODScRNA of SERT was transcribed from cDNA, which was cloned in the pOTV vector. Each oocyte of mature xenopus laevis was injected with transcribed cRNA in vivo and incubated at room temperature for 4-9 days. Recording the current induced by 5-HT with voltage clamp technique tested the function of the expressed 5-HT transporter.

RESULTSThe transporter current could be observed in Ringer's solution containing 5-HT, and the 5-HT induced current were concentration-dependent. Norepinephrine and dopamine could not induce the transporter current while the 5-HT induced current could be specifically inhibited by 5-HTT blocker, desipramine.

CONCLUSIONThe results demonstrate that the heterologous expression product in xenopus laevis oocytes is human 5-HT transporter.

Animals ; Carrier Proteins ; genetics ; DNA, Complementary ; genetics ; Female ; Gene Expression ; Models, Animal ; Oocytes ; metabolism ; RNA, Messenger ; genetics ; Serotonin ; metabolism ; Serotonin Plasma Membrane Transport Proteins ; biosynthesis ; genetics ; Xenopus laevis

The slowing down mechanism of heart rate during growth of the body after birth was studied in isolated rabbit heart and sinus node (SN) preparation with Langendorff perfusion method, conventional microelectrode recording and perforated patch for recording pacemaker current I(f). The radioimmunoassay was also used to measure the concentration of cAMP within SN cells. The results indicate that without the influence of nervous and humoral factors, the spontaneous heart rate would also become slower as the rabbit grew older, which is due to the decrease of spontaneous depolarized rate of phase 4 in SN cells. The negative directed shift of the threshold potential of I(f) and the decrease in cAMP concentration within SN cells may be responsible for the phenomenon. The results obtained suggest that besides the nervous and humoral factors which influence the heart rate, the changes in automaticity of SN cell itself may take part in the slowing down process as the body grows up.
Animals ; Cyclic AMP ; physiology ; Heart Rate ; In Vitro Techniques ; Microelectrodes ; Perfusion ; Rabbits ; Sinoatrial Node ; physiology

Single sodium channel currents were recorded by patch clamp technique in isolated guinea-pig ventricular myocytes, and action potentials of papillary muscle and ECG were conventionally measured. Sea anemone toxin (ATXⅡ), a high affinity toxin to sodium channel, was used to change the sodium channel dynamics. Changes in the duration of action potentials and the QT interval of ECG depending on the channel modes were studied in order to provide hints to an understanding of pathogenesis of the long QT syndrome (a genetic disease). With the binding of ATXⅡ to the sodium channel, the occurrence frequency and the open time constant of the “long opening” mode of single Na channels increased significantly, whereas the action potential durations, APD50 and APD90, were prolonged by 23% and 27% respectively. Following application of ATXⅡ, on the other hand, the QT interval and the QTc, a rectified QT interval, increased by 18. 6% and 18. 9% respectively. The results suggest that the dynamics or modes of Na channel play an important role in determining the action potential duration and the QT interval of ECG. The dynamical changes in Na channels induced by genetic mutation may be partially responsible for the long QT syndrome.

Objective To explore the effect of the Healthcare Failure Mode and Effect Analysis (HFMEA) in the security management of newborn Bacillus Calmette-Guerin (BCG) vaccination.Methods One thousand neonates born in 2010 were selected as the experiment group who received the BCG vaccination under the management with the HFMEA.One thousand neonates born in 2009 were served as the control group who received routine BCG vaccination after birth.We performed the hazard analysis and decision making tree by making the effort to find the potential failure mode,reason and effect during the vaccination procedure and formulate and take the steps for top priority issue.Results After the application of the HFMEA into the management,the index of the risk priority number (RPN) ≥8 points in the high risk process could decrease to the average≤6 points by means of controlled measures in the procedure of BCG vaccination.The incidence rate of adverse reaction for the BCG vaccination could decrease to 0.0％ from 0.6％ ( x2 =4.2,P ＜ 0.05 ).Conclusions We can reduce the risk of adverse reaction and promote the rate of safety in BCG vaccination by mean of the management of BCG vaccination procedure with the HFMEA.

Objective To assess the clinical predictability of waist-to-hip ratio (WHR) among female civil servants who had experienced risk factors of cardiovascular disease. Methods Data was gathered from 4153 female civil servants aged 21-91 y working at universities who were enrolled in health screening centre at the Second Hospital Attached to Hebei Medical University, in 2006. WHR quartiles were determined as: <0.80, 0.80-<0.84, 0.84-<0.90 and ≥0.90. Subjects were placed into high-risk categories for cardiovascular disease on the basis of national health reference on range norms of protocol including hypertension, diabetes mellitus and dyslipidemia. Results Participants had an increased likelihood of hypertension (systolic blood pressure) , dyslipidemia (elevated triacylglycerol and descending HDL-C) and diabetes mellitus at WHR≥0.84. All aforementioned variables had a significant odds ratio at WHR ≥0.84. This trend was further persisted after adjustment had been made on smoking, age, and BMI. Descended HDL-C was observed at the 0.80≤WHR<0.84 when compared with WHR< 0.80. Conclusion These data indicated an upward shift in the critical threshold for WHR to ≥0.84. Above which point, there was an elevation of risk factors on cardiovascular diseases among all the female civil servants. The trend persisted regardless of smoking, BMI