1.Research combined surgery of spastic cerebral palsy
Guitao LI ; Xiran CHEN ; Zaohong CHEN
Orthopedic Journal of China 2006;0(15):-
[Objective]To discuss the indication and attentive affairs among single and combined surgical treatments for spastic cerebral palsy by analyzing the therapeutic efficacy of different operations,such as lengthening tendon,osteotomy and neurectomy,etc.[Method]Six hundred and forty-two patients(aged 10 months to 37 years)were treated with combined operations of different operations,including traditional operations on soft tissue release,osteotomy,selective posterior rhizotomy,selective rhizotomy and converse anastomosis,neurectomy,etc.The follow-up period ranged from 6 months to 4 years(mean 18 months).[Result]The traditional soft tissue release and lengthening was still the major surgical treatment to cerebral palsy.It resulted on rectifying fixed contracure and deformity,although could not decrease muscular tension.The decisive processes lied on neurectomy.Though the selective posterior rhizotomy and selective peripheral neurectomy reduced muscular strength partially in the early stage,the muscular tension was also reduced,therefore the range of motion of joints was enlarged and the functions of extremities were strengthened.[Conclusion]Classifying the types of cerebral palsy carefully,mastering the indications of all sorts of surgical treatment strictly,realizing the latent complications of different operations,combining different processes of surgical treatment can enhance therapeutic efficacy,reduce recurrence of convulsion and malformed,as well as avoiding serious complications during therapy.In addition,postoperative exercise is also the basic treatment to spastic cerebral palsy.
2.Bone barrow mesenchymal stem cells in conjunction with bone morphOgenetic protein promote spine interbody fusion in rabbits
Weijian CHEN ; Guitao LI ; Dixin LUO ; Xiran CHEN ; Zaohong CHEN ; Guangqin WU ; Wei YE ; Jing LI
Chinese Journal of Tissue Engineering Research 2008;12(34):6763-6766
BACKGROUND: Several studies have demonstrated that bone marrow mcscnchymal stem cells (MSCs) can differentiate into osteoblasts after induction of bone morphogenetic protein (BMP).OBJECTIVE: This study was designed to compare the osteogenetic effects between MSCs, bBMP, and fibrin gel alone and their composite.DESIGN: A controlled observation experiment.SETTING: Second People's Hospital of Guangdong Province and Second Hospital Affiliated to Sun Yat-sen University.MATERIALS: This study was performed at the Second Hospital Affiliated to Sun Yat-sen University between January 2004 and June 2006. Healthy New Zealand rabbits were provided by the Laboratory Animal Center, Sun Yat-sen University.METHODS: Bone marrow was taken from the lilac bone. By density gradient centrifugation, autologous MSCs were in vitro cultured and amplified. A composite was made of fibrin gel and bovine bone morphogenetic protein (bBMP). After adding MSCs, another composite was made. Twelve rabbits underwent lumbar L3/4, LA/5, and LS/6 discectomy and interbody fusion via an anterior retroperitoneal approach. Three fusion sites in each animal were randomly assigned into three of four treatments: composite of MSCs and hBMP and fibrin gel (group A), composite of MSCs and fibrin gel (group B), composite of bBMP and fibrin gel (group C) and fibrin gel alone (group D). The interbodies were observed radiologically and histologically 3 months after surgery.MAIN OUTCOME MEASURES: Bone formation in the spinal interveRebral space of rabbits.RESULTS: Twelve weeks after surgery, bone formation was appasenfly greater in the Group A than in the other groups.Histological findings revealed continuous bone formation. The groups B and C showed equivalent radiological and histological changes. Bone formation was intermittent. Group D had fibrous union, but no bone formation. No residual fibrin gel was found in all groups, but a small amount of residual nucleus gelatinosus with a little cartilaginous tissue was visible in the intervertebral disc.X-ray examination results did not reveal vertebral posterior hyperplasia or spinal stenosis. There was significant difference in range of lumbar motion between the group B and the groups C and D (P < 0.05). No pronounced difference in vertebral posterior height loss existed among the groups.CONCLUSION: The composite of MSCs, fibrin gel and bBMP can promote bone regeneration and achieve osseous spinal fusion.
3. Levels of miRNA-106a in non-small cell lung cancer tissues and its clinical significance
Chinese Journal of Primary Medicine and Pharmacy 2019;26(20):2510-2514
Objective:
To investigate the level and clinical significance of miRNA-106a in non-small cell lung cancer tissues.
Methods:
Paraffin-embedded specimens of non-small cell lung cancer tissues and adjacent tissues from 80 patients with non-small cell lung cancer from January 2012 to December 2013 in Yiwu Central Hospital were selected in this study.The real-time fluorescence quantitative polymerase chain reaction (QRT-PCR) was used to determine the level of miRNA-106a in lung cancer tissues and adjacent tissues.
Results:
The level of miRNA-106a in non-small cell lung cancer tissues (2.42±0.23) was higher than that in adjacent tissues (1.00±0.06) (
4.Analysis of correlation between expression of vascular endothelial growth factor, MMP-2 and MMP-9 and clinical prognosis of patients with hepatocellular carcinoma
Chinese Journal of Primary Medicine and Pharmacy 2020;27(12):1422-1426
Objective:To investigate the correlation between the expression of vascular endothelial growth factor (VEGF), MMP-2, MMP-9 and the clinicopathology and prognosis of patients with hepatocellular carcinoma (HCC), and to provide evidence for the occurrence and development of HCC.Methods:From April 2015 to March 2016, 95 HCC tissues were resected in Yiwu Central Hospital.Forty-fivenormal liver tissues which were resected due to liver trauma were selected as control group.Immunohistochemical staining was used to detect the expression of VEGF, MMP-2 and MMP-9 in HCC and normal liver tissues, and the correlation between the expression of VEGF, MMP-2, MMP-9 and clinical pathology and prognosis was analyzed.Results:The positive expression rates of VEGF, MMP-2 and MMP-9 in the HCC tissues were significantly higher than those in the normal liver tissues (81.05%, 75.79%, 84.21% vs.42.22%, 33.33%, 48.89%)(χ 2=21.364, 23.397, 19.265, all P<0.05). The positive expression rates of VEGF, MMP-2 and MMP-9 in HCC were significantly increased in patients with poor differentiation, TNM stage Ⅲ-Ⅳ and vascular invasion (all P<0.05). The survival of patients with negative expression of VEGF, MMP-2 and MMP-9 in HCC tissues was significantly better than that of patients with positive expression (log χ 2=3.271, 2.975, 3.065, all P<0.05). Conclusion:The high expression of VEGF, MMP-2 and MMP-9 plays an important role in the growth, invasion and metastasis of HCC tissues.Therefore, VEGF, MMP-2 and MMP-9 can be used as biological indicators of the progression of HCC.