1.Reasonable Configuration Education with Assistive Devices in Sichuan
Shuwei LI ; Longwei CHEN ; Hongxia LI
Chinese Journal of Rehabilitation Theory and Practice 2012;18(3):213-214
Reasonable configuration with assistive devices is a comprehensive project that involves much discipline, interdisciplinary technology. This paper summarized World Vision training about reasonable configuration with assistive devices in Sichuan province.
2.A new method for improving the success rate of the establishment of endometriosis models in rats
Longwei LI ; Yanyun WANG ; Qi CHEN ; Yaping WANG ; Lu HAN
Chinese Journal of Comparative Medicine 2016;26(3):81-85
Objective To provide ideal endometriosis animal models for research new treatment methods. Methods 64 Sexual mature without pregnant SD rats who has regular oestrous cycle were underwent operation that autologous endometrium were transplanted to peritoneum and subcutaneous with lancet gently cut tissue of where to transplant in the rut, and compared the model of peritoneum and subcutaneous after 4 weeks.Results The general success rate of autologous endometrium transplantation in rat estrus was 93.3%,and the peritoneum transplantation success rate was 51.7%, subcutaneous was 88.3%, the difference of the two place transplantation has statistical significance. Compare the two parts of volume of endometriosis,there was no statistically significant difference.Conclusion Using the lancet to establish the endometriosis model has a high success rate, and subcutaneous model is better than peritoneum.
3.Promoted role of bone morphogenetic protein 2/7 heterodimer in the osteogenic differentiation of human adipose-derived stem cells
Xiao ZHANG ; Yunsong LIU ; Longwei LV ; Tong CHEN ; Gang WU ; Yongsheng ZHOU
Journal of Peking University(Health Sciences) 2016;48(1):37-44
Objective:To investigate the role of bone morphogenetic protein 2/7 heterodimer (BMP-2/7)in the osteogenesis of human adipose-derived stem cells (hASCs).Methods:hASCs were exposed to three different treatments in vitro:osteogenic medium with 1 50 μg/L BMP-2/7 (experimental group), osteogenic medium alone (OM group)and proliferation medium (PM group).After 1 ,4 and 7 days of osteogenic induction,the amount of cellular DNA was measured to investigate the cytotoxicity.After 7 and 1 4 days,alkaline phosphatase (ALP)staining and quantification were performed to test the activity of ALP.After 21 and 28 days,the calcification deposition was determined by Alizarin Red S (ARS)stai-ning and quantification.The expressions of the osteoblast-related genes were tested on days 1 ,4,7 and 1 4.In the in vivo study,6 nude mice were used and 4 groups were set and implanted subcutaneously into the back of nude mice:(1 )β-TCP scaffold only (scaffold control group );(2 )β-TCP scaffold with hASCs cultured by PMin vitro for 1 week (PMcontrol group);(3)β-TCP scaffold with hASCs cultured by OM in vitro for 1 week (OM control group);(4)β-TCP scaffold with hASCs cultured by OM with 1 50 μg/L BMP-2/7 in vitro for 1 week (test group).After 4 weeks of implantation,histological staining was performed to evaluate the in vivo osteogenesis of hASCs.Results:After induction for 1 day,there was no significant difference between the experimental group and the PM group on the cellular DNA con-tent (P>0.05 ).After 4 days,the cellular DNA content increased under the stimulation of BMP-2/7 (P<0.05).On day 7,there was no significant difference among the three groups (P>0.05).ALP ac-tivity was higher by the induction of BMP-2/7 than in OMalone and PM(P<0.05).More mineraliza-tion deposition and more expressions of osteoblast-related genes such as Runx2,ALP,COL-1 A1 and OC were determined in the experimental group at different time points (P<0.05).HE staining showed that, in the test group and OM control group,the extracellular matrix (ECM)with eosinophilic staining were observed around hASCs,and newly-formed bone-like tissues could be found in ECM around the scaffold materials.Moreover,compared with the OM control group,more bone-like tissues could be observed in ECMwith typical structure of bone tissue in the test group.Masson’s trichrome staining showed that more expression of collagen could be observed in ECM in the test group compared with the other groups.There was small amount of expression of collagen in the OM and PM control groups.No obvious positive results were found in the scaffold group.Conclusion:BMP-2/7 heterodimer plays a significant role in the osteo-genesis of hASCs and is able to enhance the osteogenic differentiation of hASCs in vitro and in vivo.
4.Study on the relationship between laparoscopic operation and pseudo vascular invasion in stage Ⅰ a endometrial carcinoma
Longwei LI ; Lu HAN ; Yaping WANG ; Qi CHEN ; Lizhi ZHANG
Chinese Journal of Obstetrics and Gynecology 2017;52(9):612-617
Objective To explore relations between pseudo vascular invasion (PVI) and laparoscopic operation in patients with stage Ⅰa endometrial carcinoma. Methods Details of stage Ⅰa endometrial carcinoma patients′ clinical information and pathological sections who received operation treatment between January 2008 and October 2015 were obtained from the Dalian Maternal and Child Health Hospital. There were 515 cases entrolled into this study, including 332 (64.5%) cases performed surgery by laparoscopy and 183 (35.5%) cases undergone abdominal surgery. The vascular invasion rate and the microscopic manifestations of PVI in two groups were retrospectively compared and analyzed. The follow-up period ended February 2017, the adjuvant treatment and prognosis of patients with lympho-vascular space invasion (LVSI) and PVI were analysed. Results (1) Seventy-five of 515 cases with stage Ⅰa endometrial carcinoma, there were seven-five cases found with tumor cells in lympho-vascular space, including 52 cases of LVSI and 25 cases of PVI (2 cases of both). The incidence of cancer emboli in lympho-vascular space and LVSI in laparoscopic group and laparotomy group were respectively 15.4%(51/332) vs 13.1%(24/183) and 9.6%(32/332) vs 10.9%(20/183), there were no significant differences (all P>0.05). But the rate of PVI between the two group was significantly different [6.3% (21/332) vs 2.2%(4/183), P=0.036], laparoscopic group was higher than that in laparotomy group. (2) Of 332 cases in laparoscopic group, 21 cases was found PVI, containing 8 cases showed tumor tissue with mesenchyme or papillary structures located in large thick wall vessels of the outer lateral myometrium, 13 cases showed the tumor tissue was away from the vessel wall. Among 183 cases in laparotomy group, 3 cases with PVI which the tumor tissue was away from the vessel wall, and 1 with interstitial tissue. (3) During the follow-up period, 7 of 75 cases (both LVSI and PVI) were lost, and 66 cases were relapse-free survival, 2 cases recurred at fifth months and died respectively at 7, 20 months after the operation. This 2 cases were both PVI of laparoscopic group, and the pathological type was endometrioid adenocarcinoma grade 3, and adjuvant treatment was not accepted after the operation. The relapse-free survival with LVSI was 49 months and 46 months for cases with PVI. Conclusions Laparoscopic operation could increase PVI in patients with stageⅠa endometrial carcinoma, while does not increase LVSI. It is not yet possible to demonstrate that PVI affects the prognosis of patients.
5.The rehabilitative effect of task-oriented training for stroke survivors
Jie ZHANG ; Xiaokang FU ; Yongyong WANG ; Yanhui YANG ; Longwei CHEN
Chinese Journal of Physical Medicine and Rehabilitation 2022;44(7):595-598
Objective:To observe any effect of task-oriented training in the activities of daily living (ADL) for stroke patients.Methods:Sixty-two hemiplegic stroke survivors were randomly divided into an experimental group and a control group, each of 31. In addition to routine occupational therapy, the control group exercised on their own, while the experimental group underwent 45-minute task-oriented training sessions based on ADL action analysis every day, 5 days a week for 6 weeks consecutively. Before and after the treatment the upper limb functioning of both groups was quantified using Fugl-Meyer upper limb motor function scoring (FMA-UE) and Brunnstrom staging (BSS). ADL skill was assessed using the modified Barthel index (MBI).Results:After the treatment, the average FMA-UE and MBI scores of both groups were significantly better than before the treatment and better than the control group′s averages. The average BSS scores had also improved significantly, with that of the experimental group significantly better than the control group′s average.Conclusions:Task-oriented training based on ADL motion analysis can significantly improve upper limb motor functioning and ADL ability after a stroke despite hemiplegia. Its efficacy is better than that of conventional occupational therapy alone.
6.Robot-assisted training can improve the bladder and intestinal functions of paraplegic patients
Jie ZHANG ; Yiping ZHU ; Jianhua XIAO ; Shuwei LI ; Longwei CHEN ; Yongyong WANG ; Yafeng TIAN ; Yan-Hui YANG ; Nannan ZHANG ; Xiaokang FU ; Jie JIA
Chinese Journal of Physical Medicine and Rehabilitation 2019;41(2):111-115
Objective To explore the clinical effect of training assisted by a lower limb rehabilitation robot on the bladder and intestinal function of paraplegic spinal cord injury survivors. Methods Thirty-eight paraplegic patients with spinal cord injury were divided according to their admission order into an experimental group ( n=19) and a control group (n=19). Both groups were given conventional rehabilitation training, while the experimental group was additionally provided with robot-assisted lower limb training in three stages:adaptation, training and con-solidation. It lasted 30 minutes daily, 5 days per week for 12 weeks. Before and after the training, an urodynamics examination system was used to evaluate the maximum urine flow, bladder capacity, residual urine volume, bladder pressure and detrusor pressure. Colon transit time, mean rectal pressure and intestinal function were measured using the colon transit test, a mean rectal pressure test, and the Functional Independence Measure ( FIM) scale respective-ly. Results The average bladder volume, maximum urine flow rate, average urine flow rate, detrusor pressure, bladder compliance, average rectal pressure and intestinal FIM score of the robot training group after training were all significantly better than before the training, as were the average residual urine volume and colon transit time. After the training, the average bladder volume, maximum urine flow rate, average urine flow rate, detrusor pressure, bladder compliance and average rectal pressure of the robot training group were all significantly higher than those of the control group, while the average residual urine volume and colon transit time were significantly smaller. Then, 32% of the patients in the experimental group achieved no less than 6 points for their average FIM score, significantly higher than in the control group. Conclusion Robot-assisted lower limb training combined with comprehensive rehabilitation training can effectively improve the bladder and intestinal function of paraplegic patients after a spinal cord injury.