1.Minimally invasive technique for potential application in colorectal cancer surgery
Chinese Journal of Clinical Oncology 2016;43(11):464-466
New technologies and ideas are constantly emerging recently. With the arrival of the era of minimally invasive surgery, most of the colorectal cancer surgeries can be conducted through minimally invasive techniques. In this study, we discuss the status, characteristics, controversy, and consensus of minimally invasive techniques in colorectal cancer surgery.
3.Intravascular Ultrasound-based Computational Fluid Dynamics Simulation of Arterial Vessel Wall Strain Distribution.
Journal of Biomedical Engineering 2015;32(6):1244-1248
Quantitative measurement of strain distribution of arterial vessel walls due to pulsatile blood flow within the vascular lumen is valuable for evaluating the elasticity of arterial wall and predicting the evolution of plaques. The present paper shows that the three-dimensional (3D) strain distribution are estimated through uni-directional coupling for 3D vessel and blood models reconstructed from intravascular ultrasound (IVUS) images with the computational. fluid dynamics (CFD) numerical simulation technique. The morphology of vessel wall and plaques as well as strain distribution can be visually displayed with pseudo-color coding.
Arteries
;
diagnostic imaging
;
physiology
;
Elasticity
;
Hemodynamics
;
Humans
;
Imaging, Three-Dimensional
;
Pulsatile Flow
;
Ultrasonography
4.Progress in the application of suppression ubtractive hybridization
Basic & Clinical Medicine 2006;0(11):-
Suppression subtractive hybridization(SSH),which is feasible and highly specific,is one of the most efficient methods for cloning differentially expressed genes.It has been successfully applied in the study of tumors,stem cells,etc.
5.The effect of CD151 on Akt-Ser~(473) phosphorylation and human umbilical veine endothelial cell proliferation
Zhenzhong ZHENG ; Zhenxiang LIU
Journal of Medical Postgraduates 2003;0(03):-
Objective:To investigate the the effect of CD151 on Akt-Ser473 and human umbilical veine endothelial cell proliferation.Methods:To construct pAAV-CD151 and transiently transfect to HUVEC(human umbilical veine endothelical) mediated with Lipofectamine 2000.HUVEC were assigned to control group,GFP group,CD151 group.After transfection,the expression of CD151,Akt and phospho-Akt were measured by western blot.Proliferation of HUVEC were measured by MTT colorimetric assay.Results:①The expression of CD151,phospho-Akt of pAAV-CD151 transfected group were significantly increased compared with non-transfected group and pAAV-GFP transfected group(P
6.Taking the opportunity of clinical skill center construction to promote the reforms on the teaching of clinical practice
Chinese Journal of Medical Education Research 2006;0(08):-
As an important part of medical education,clinical practice teaching is an im-portant period for medical students to become doctors,in which they integrate theory with practice.So,in clinical practice teaching process,it is important to cultivate students’ innovative ability and practical ability,and emphasize quality-oriented education.For clinical skills training center,it is of great significance to reform management of clinical skills teaching,establish scientific and effective teaching methods,develope the correct clinical thinking and innovative aware-ness.
7.The pathological mechanism of innate and adaptive immunity in the development of uveitis
Chinese Journal of Experimental Ophthalmology 2013;(5):505-509
Human body often contacts with different kinds of pathogens,but these pathogens do not result in disease due to innate immunity.The adaptive immunity is able to discriminate self and non-self pathogen and further maintain immunological health and appropriate response through peripheral regulatory mechanism.Whether innate immune or adaptive immune,lack of control mechanism leads to autoimmunity and autoinflammation.Up to now,some studies demonstrated that autoimmunity and autoinflammation have many common characteristics in intraocular inflammation,but their mechanism relates to different molecular pathways.Hence,ophthalmologists have better understanding in the pathogenesis of uveitis.Herein,it is inferred from the basic mechanism of the activation of immunology pathway that regulation of innate and adaptive immunity might impact how autoinflammatory and autoimmune pathways contribute to disease progress in uveitis.
8.Curative effect of enteral and parenteral nutrition support therapy in elderly patients with severe pneumonia
Parenteral & Enteral Nutrition 2017;24(2):98-100
Objective:To investigate the effects of two different routes of nutrition support on the treatment of severe pneumonia in elderly patients.Methods:From January 2015 to January 2016,84 elderly patients with severe pneumonia in our hospital were randomly divided into two groups,42 patients in each group.The enteral nutrition (EN) group was treated with nasogastric feeding and another group was defined as combined treatment group.After 4 weeks of treatment,the nutritional status of two groups of patients was compared.The incidence of complications during treatment were documented.Results:After treatment,the hemoglobin was (111.34 ± 20.33) g/L,and the albumin was (23.33 ± 5.09) g/L in the EN group.The hemoglobin was (132.13 ±24.39) g/L,and the albumin was (35.43 ±9.12)g/L.There was significant difference between the two groups (P < 0.05).The cure rates of the two groups were 92.86% and 95.24%,respectively,and there was no significant difference (P > 0.05).Conclusion:For elderly patients with severe pneumonia,the combination of enteral and parenteral nutrition is more likely to improve the nutritional index,and has a lower incidence of adverse events.
9.Modified cervical single open-door laminoplasty combined with segmental lateral screw fixation for the treatment of multilevel cervical spondylotic myelopathy
Clinical Medicine of China 2017;33(7):643-647
Objective To compare the clinical effects of modified single open-door laminoplasty combined with segmental lateral screw fixation with conventional single open-door combined with continuous screw fixation in the treatment of multilevel cervical spondylotic myelopathy (MCSM).Methods Retrospective analysis was used to analyze the fifty-five cases of MCSM who underwent posterior operation in Lianyungang Hospital Affiliated to Xuzhou Medical University from March 2009 to January 2017.Among them,26 cases in the modified group were treated by modified single open-door laminoplasty combined with segmental lateral screw fixation;29 cases in the traditional group were treated by conventional single open-door combined with continuous screw fixation.JOA score collected before the operation and at the last time of the follow-up,the cervical spine mobility,cervical curvature,cervical axial symptom,C5 nerve root palsy and the incidence rate of screw fracture in both groups were compared.Operation time and the intraoperative blood loss were recorded.Results 55 cases were all followed up.The cervical spine mobility at the last time of the follow-up in the modified group was significantly higher than that of the traditional group ((39.63°±5.98°) vs.(36.14°±6.05°),P=0.036).The cervical curvature in the modified group was higher than that of the traditional group ((19.83°±5.61°) vs.(16.02°±7.05°),P=0.030).The operation time and intraoperative blood loss in the modified group were significantly lower than those of the traditional group ((116.3±13.2) min vs.(128.7±14.3) min,(186.7±39.8) ml vs.(228.7±42.5) ml,P=0.002,0.000).In the modified group,the proportion of patients with postoperative cervical axial symptom was 15.38%,the rate of C5 nerve root palsy cases was 8.69%,compared with 48.27% and 34.48%,respectively in the control group,the difference between the two groups was statistically significant (P=0.011,0.022).In the traditional group,2 cases of screw fracture were found at the last follow-up,while there was no such case in the modified group.Conclusion The modified cervical single open-door laminoplasty combined with segmental lateral screw fixation can obtain good effect of nerve decompression,maintain cervical mobility and cervical curvature,reduce the occurrence of postoperative cervical axial symptom,C5 never root palsy,screw fracture and other complications,is a safe and effective surgical method.
10.The effect of celecoxib on Wnt/β-catenin signaling pathway and matrix metabolism of chondrocytes in osteoarthritis
Chinese Journal of Rheumatology 2015;19(11):756-760,封3
Objective To study effect of celecoxib on Wnt/β-catenin signaling pathway and matrix metabolism of chondrocytes in osteoarthritis (OA).Methods Use a modified way of mechanical fixation to make rabbit OA model.Knee OA separated and extractd rabbit chondrocytes were and then culture in medium.The cultured chondroctyes were divided into the Dimethyl sulfoxide (DMSO) control group and the celecoxib group, which were given 1% DMSO and 10 μmol/L celecoxib respectively.After 48 hours' intervention, the protein expression and gene expression of Wnt/β-catenin signaling pathway related factors, including β-catenin,matrix metalloproteinase (MMP)-3, MMP-13, collagen Ⅱ were detected.T-test was used for the comparison between the two groups.Results Compared with the control group, the levels of type Ⅱ collagen [(275±19) ng/ml vs (202±12) ng/ml, t=-6.21, P<0.05] and proteoglycan [(58±12) ng/ml vs (30±3) ng/ml, t=-9.23, P<0.05] significantly increased in celecoxib group (P<0.05).Meanwhile, compared with the control group, the levels of β-catenin, MMP-3, MMP-13 mRNA and protein in celecoxib group were significantly reduced (P<0.05).Conclusion In rabbit OA chondrocytes, celecoxib can inhibit Wnt/β-catenin signaling pathway, reduce downstream factors expression including MMPs, thereby increase the cartilage matrix type Ⅱ collagen and proteoglycan levels.