1.The influence of three-dimensional kinematic factors on the walking capacity of hemiparetic stroke patients
Guangqing XU ; Yue LAN ; Yurong MAO ; Dongfeng HUANG
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(9):673-676
Objective To investigate any correlation between walking capacity, center of mass, and pelvic and hemiparetic lower limb motions in stroke survivors. Methods The kinematic variables studied included maximum walking speed, center of mass ( CoM ), pelvic movements and lower-limb movements on the paretic side. These were examined using a three-dimension motion analysis system as thirty-two post-stroke hemiparetic patients walked without aids. Results Average walking capacity was significantly correlated with lateral shifting of the CoM, with paretic limb hip extension, and with deficient knee flexion motions. There was a significant correlation between lateral CoM shifting and paretic limb hip extension and also deficient knee movement. Conclusions Walking capacity after stroke is associated with the lateral shifting of the CoM, paretic limb hip extension and deficient knee flexion. The lateral CoM shifting was associated with paretic limb hip extension and deficient knee movements.
2.TESTIN tumor suppressor gene in endometrial cancer tissues
Ruofan DONG ; Hong PU ; Zhenyu ZHANG ; Yurong MAO ; Jinjin YU
Journal of Chinese Physician 2011;13(11):1452-1454
ObjectiveTo investigate the expression of TESTIN gene in endometrial carcinoma and explore the functions of this gene in tumor development and progression.MethodsqRT-PCR and immunochemical staining assay were used to determine the mRNA and protein level of TESTIN in the tumor tissues,and the relationship between TESTIN expression and clinical pathology characteristics was analyzed.Results Compared to normal tissue,76.5% (52/68) tumor tissues showed TESTIN reduced ( P < 0.01 ),furthermore,this reduction in the subgroup of endometrioid adenocarcinoma was significant,but it was rarely observed in the subgroup of serous papillary adenocarcinoma.ConclusionsTESTIN was obviously down regulated in endometrail carcinoma,especially in endometrioid adenocarcinoma,which indicated TESTIN played an important role in tumorigenesis of uterine.
3.Velocity and target location influence the upper limb reaching movements:three-dimensional motion analysis combined with surface electromyograph
Lifang LI ; Yurong MAO ; Dongfeng HUANG ; Le LI
Chinese Journal of Tissue Engineering Research 2016;20(42):6357-6362
BACKGROUND:Three-dimensional (3D) motion analysis system combined with electromyograph cannot only objectively analyze movement function of the upper limb, but also exert an important role in exploring the exercise-related factors and the underlying mechanism.
OBJECTIVE:To explore the influence of movement velocity and target location on kinematics and muscle activity in upper limb reaching.
METHODS:Twelve healthy young adults reached for three different location targets (frontal, ipsilateral and contralateral) at self-selected and fast speeds to with the dominant right hand, respectively. Kinematic parameters and muscle activity were recorded by Vicon 3D motion analysis system and Noraxon wireless electromyograph, synchronously.
RESULTS AND CONCLUSION:Reach path ratio became smal er when moving faster (P<0.001), while mean velocity, peak velocity and the time percentage of peak velocity increased (P<0.001). Posterior deltoid, biceps brachi and triceps brachi activation was higher during fast speed movement (P<0.001). Muscle activation of anterior deltoid was lower in ipsitralateral reaching than contralateral (P=0.001) and frontal reaching (P<0.001), and posterior deltoid was higher than contralateral reaching (P=0.019). Biceps brachi (P=0.039) and triceps brachi (P<0.001) activation was also higher in ipsitralateral reaching than frontal reaching. These results suggest that moving fast can contribute to more muscle activation, high velocity, smooth trajectory and increased movement quality. Posterior deltoid, elbow extension and flexion muscle activation are high in ipsitralateral reaching, while high anterior deltoid activation in contralateral reaching;therefore, target location result in muscle synergies.
4.Rehabilitational effect of patients in post-operation of total replacement of the hip
Yurong MAO ; Zhiyong LI ; Dongfeng HUANG ; Meilian XU
Chinese Journal of Rehabilitation Theory and Practice 1997;3(4):155-157
Nine patients who have preceded total replacement of the hip are treated with early rehabilitational program. The patients were measured with the criteria of Hip Joint Functional Evaluation(HJFE)and Functional independent Measure (FIM). The result shows that early rehabilitational program greatlyadvanced the patients'walking ability and level of ADL.
5.Relationship between Level of Thoracic Complete Spinal Cord Injury and Ambulatory Function with Reciprocating Gait Orthosis through 3D Gait Analysis
Jiali SUN ; Dongfeng HUANG ; Yatao OUYANG ; Yurong MAO ; Shizhen ZHONG
Chinese Journal of Rehabilitation Theory and Practice 2010;16(2):143-145
ObjectiveTo evaluate the relationship between the level of thoracic complete spinal cord injury(SCI) and ambulatory function wearing Reciprocating Gait Orthosis(RGO) through three dimentional gait analysis, and to explore the quantitative indicators of reconstructing walking capacity of thoracic complete SCI patients.Methods10 patients with thoracic complete spinal cord injury of lesion level from T4 to T12 who had experienced RGO gait training for at least 3 months. Three dimentional gait analysis system of Vicon Nexus 1.2 was used to test and examine the gait speed, cadence, stride length, pelvic angle of rotation, hip range of motion(ROM), crutch force, angular velocity of hip flexion and extension phases, etc. Pearson's product moment correlation coefficient and Spearman rank correlation coefficient were used to examine the relationship between the level of spinal cord injury and the kinematic and kinetic values.ResultsThe mean cadence and stride length were (37.4±2.15) steps/min and (91.6±9.09) cm. The mean hip ROM, angular velocity of hip flexion and extension phases were (42.57 °±5.43 °), (20.88 °±2.18 °)/s and (124.75 °±9.31 °)/s respectively. The gait speed, stride length, peak crutch force, hip ROM, mean crutch force and angular velocity of hip extension phase all had significant pertinence with the level of spinal cord injury.ConclusionThe limitation of hip ROM and excessive load of upper limbs mainly result in ambulatory disorder in higher thoracic complete SCI patients who should be undertaken some rehabilitation training to reduce excessive physiological load in order to improve their ambulatory capacity.
6.Research of dendritic cells pulsed with HPV peptide inducing specific CTL in vitro
Hong PU ; Yang SHI ; Yinghua LU ; Chenyao ZHU ; Yurong MAO ; Zhenyu ZHANG ; Hongzhen SHI
Chinese Journal of Microbiology and Immunology 2012;32(5):468-472
Objective To explore the potential of autologous dendritic cells (DC) pulsed with HLA-A201-binding peptide E613-21(KLPDLCTEL) and E786-94(TLGIVCPI)in inducing specific T cells respouse in vitro.Methods Cervical carcinoma patients with positive HLA-A201 were enrolled and their monocytes isolated and induced into dendritic cells and pulsed with HLA-A201-binding peptide E613-21 and E786-94.PBLs were primed by DCs every week for thee times.The cytokine level of supernatant of CTLs was tested by ELISA.The percentage of special CTLs was tested by flow cytometry.The specific killing effect of CTLs was tested by MTT.Results the numbers of DCs of eleven cervical carcinoma patients were (10.79±0.88) ×106(100 ml peripheral blood).CDllc+HLA-DR+(97.15±2.41)%,CD80+(84.28+5.39)%,CD83 +(85.17±5.06) %,CD86 + (97.74+0.87) %.Proliferation index of PBLs primed by DCs three times was 15.4± 1.5.Cytokine levels including IL-2,IL-12,IFN-γ and TNF-α were obviously higher than nonpriming PBLs[(2551.9+195.3) pg/ml,(554.9±64.0) pg/ml,(2416.9±281.7) pg/ml,(632.4 +71.1)pg/ml,respectively] (P<0.05),but IL-10 was no significant difference between priming CTLs and nonpriming CTLs.The average percentage of special CTLs was obviously higher than control group[(6.32±1.54)%,P<0.05].The killing effect of CTLs was obviously higher than control group(P<0.05).Conclusion Dendritic cells pulsed with peptide E613-21 and E786-94 can induce special CTLs in vitro and stimulate CTLs secret cytokines.This will provide science basis for research of therapeutic HPV vaccine.
7.High-energy shockwave for the chronic pain of muscle and bone joint
Yurong MAO ; Dongfeng HUANG ; Guangqing XU ; Jianxin DING ; Lingli JIANG ; Suying LUO
Chinese Journal of Tissue Engineering Research 2005;9(18):227-229
BACKGROUND: At present, there are some reports regarding the treatment of high-energy shockwave to chronic pain of muscle and born joint, however,the therapeutic effects and mechanism are still uncertain and need further discussion.OBJECTIVE: To explore the curative effects, mechanism and clinical application of high energy shockwave to bone joint myofascitis.DESIGN: Non-randomized case controlled study based on diagnosis SETTING: Rehabilitation Medicine Department of First Affiliated Hospital of Sun Yat-sen University.PARTICIPANTS: Totally 90 patients with chronic pain of muscle and bone joint treated in Rehabilitation Medicine Department of First Affiliated Hospital of Sun Yat-sen University from July 2001 to April 2002 were divided into treatment group and control group each with 45 cases by the order of visiting time. There were 17 males and 28 females in the treatment group with mean age of 54 years and 15 males and 30 females in the control group with mean age of 63 years.METHODS: Shockwave therapy was applied to the treatment group while routine physical treatment was conducted to the control group. Simple McGill pain questionnaire(MPQ) was used to evaluate the general reactions of patients to pain and assess the shoulder joint territory and clinical effects.therapeutic effects.RESULTS: There was significant difference on sensory, affective and pain score, visual analogous scale(VAS) and pain presentation inventory(PPI) before and after treatment in the treatment group( t =5.69, 5.67, 7.06, 8.37,6. 21, P < 0.01 ). When compared with control group, there was significant difference on sensory, pain score, VAS between the treatment group and control group(t =4. 66, P < 0.01; t =2.52,3.40, P <0.05).CONCLUSION: Extracorporeal high-energy shockwave has reliable effects on treating chronic pain caused by bone joint myofascitis, which is characterized by its effective, quick and safe features.
8.Virtual reality-enhanced body weight-supported treadmill training improved lower limb motor function in patients with cerebral infarction
Xiang XIAO ; Yurong MAO ; Jiangli ZHAO ; Le LI ; Guangqing XU ; Dongfeng HUANG
Chinese Journal of Tissue Engineering Research 2014;(7):1143-1148
BACKGROUND:Most stroke patients affected walking dysfunction. Virtual reality-enhanced body weight-supported treadmil training has been proposed as a strategy for gait training of cerebral infarction subjects.
OBJECTIVE:To evaluate the effectiveness of virtual reality-enhanced body weight-supported treadmil training on lower limb motor function in subacute cerebral infarction patients.
METHODS:Twenty cerebral infarction patients (within 3 months of onset) were randomly divided into experiment group (virtual reality-enhanced body weight-supported treadmil training) and control group (conventional physiotherapy). Three-dimensional gait analysis in lower limb motor function was carried out before and after 3-week gait training. Intergroup and intragroup comparisons in the fol owing parameters were done before and after training:walking speed, cadence, step time, single limb support time (%), double limb support time (%), nonparetic swing (%), step length, pace, range of motion in the lower limb, functional ambulation category, Fugl-Meyer Assessment of the lower limbs and Brunel Balance Assessment.
RESULTS AND CONCLUSION:No significant differences in patient’s gender, age, course of disease, affected. side, walking speed, functional ambulation category, Fugl-Meyer Assessment of the lower limbs and Brunel Balance Assessment were detected between the two groups before training (P>0.05). Fugl-Meyer Assessment and functional ambulation category were improved in patients of the two groups after training (P<0.05). The improvement in walking speed, cadence, step time in affected side, step time in healthy side, single limb support time in affected side (%), nonparetic swing (%), pace, step lengths in affected and healthy sides were better in the experimental group than those in the control group.
9.Gait parameters in lower extremities of patients in sequela period after unilateral total hip arthroplasty
Jiangli ZHAO ; Peihui WU ; Guangqing XU ; Yurong MAO ; Weiming LIAO ; Dongfeng HUANG
Chinese Journal of Tissue Engineering Research 2014;(13):1981-1987
BACKGROUND:Total hip arthroplasty is known to be a successful surgical procedure to al eviate hip pain and to regain gait ability, but there are many debates on whether patients’ gait could reach a normal level several years later. OBJECTIVE:To investigate spatiotemporal parameter characters of lower extremities in patients during walking in sequela period fol owing unilateral total hip arthroplasty, and to probe into patients’ walking abilities.
METHODS:In accordance with the method of Case Database Data Analysis detected by Motion Reconstruction Laboratory, 14 patients at 5-10 years after total hip arthroplasty served as the experimental group, and 14 matched healthy persons served as the control group. Gait parameters of lower extremities during walking were col ected by Vicon Nexus. Spatiotemporal parameter characters of lower extremities during gait cycle were analyzed by using Polygon.
RESULTS AND CONCLUSION:Compared with the control group, walking speed, cadence, stride length and step length decreased, but double support and opposite foot off increased on both affected and unaffected sides in the experimental group (P<0.05). Both stride time and step time of the operated lower extremities increased (P<0.05). Foot off of non-operated lower extremities increased (P<0.05). There was no significant difference in al spatiotemporal parameters between operated and non-operated lower extremities (P>0.05). The results suggested that gaits of patients showed good gait symmetry at 5-10 years after surgery. However, they do not reach the level that observed in healthy subjects, and walking ability was poorer than normal persons. Systematic rehabilitation training is needed to improve walking ability.
10.Estimation of demands for medical services and regional health planning
Zhengzhong MAO ; Jialin JIANG ; Yuelin YANG ; Yurong BAO ; Yi ZHANG ; Yonghua LIU
Chinese Journal of Hospital Administration 1996;0(03):-
Objective To seek a rational method of estimating the demands for medical services so as to work out regional health planning in a scientific way. Methods A metropolis including 19 counties and districts was selected as a region and demands for medical services were forecasted via retrospective analysis and the econometric model. Results A model of the demands for outpatient and inpatient services was obtained based on the impact of many social and economic factors on medical health services, and illustrations were given to indicate the demands for medical health services in the 19 counties and districts in future when prices should rise by 15% and 20%. Conclusion The econometric model can be used as a tool for estimating the demands for medical health services, and yet improvements need to be made.