5.Effect of total knee arthroplasty via different approaches on extensor mechanism
Chao ZHOU ; Wei PENG ; Zhiping SI
Chinese Journal of Tissue Engineering Research 2014;(9):1337-1342
BACKGROUND:Traditional total knee arthroplasty adopts medial parapatel ar approach, which induces severe trauma, requires long-term rehabilitation, and interferes the end point of quadriceps femoral tendon on superior patel ar pole. Total knee arthroplasty by subvastus approach has no impact on the knee-extension equipment, but it cannot provide sufficient exposure of surgical field and can induce damage to femoral muscle, so its application and safety need further exploration.
OBJECTIVE:To explore clinical effect of total knee arthroplasty by subvastus approach and medial parapatel ar approach.
METHODS:A total of 78 patients with 82 knees who were candidates for total knee arthroplasty were randomly divided into two groups. Treatment group (39 cases;41 knees) was given subvastus approach and control group (39 cases;41 knees) was given median parapatel ar approach. The knee function, range-of-motion of knee joint and complications after total knee arthroplasty were observed and compared.
RESULTS AND CONCLUSION:Compared with control group, the operation time in treatment group was significantly increased, while the postoperative wound drainage, straight leg raising time and walking time were obviously reduced (P<0.05). The scores of HSS before surgery and 12 weeks after surgery were not significantly different between the two groups (P>0.05), while at 1 and 6 weeks after surgery the scores in treatment group were significantly higher than those in control group (P<0.05). The range-of-motion of knee joint and MMT rank for quadriceps muscle were significantly improved in two groups after treatment (P<0.05), and those indicators in treatment group were more significant than the control group (P<0.05). The incidences of complications in treatment group and control group were 2.6%and 15.4%, respectively, with statistical y significant difference (P<0.05). The total knee arthroplasty by subvastus approach has less impact on the extensor mechanism, improves the recovery of knee function and range-of-motion of knee joint, and reduces the incidence of complications.
6.Integrator complex and its research progress
Lanlan SI ; Hongxing ZHANG ; Gangqiao ZHOU
Military Medical Sciences 2015;(5):398-402
The integrator complex is multifunctional and contains at least 12 evolutionarily conserved subunits in hu-mans.It interacts with the C-terminal tail of the largest subunit of RNA-polymeraseⅡ ( RNAPⅡ) to promote 3′-end pro-cessing of small nuclear RNA (snRNA) U1/U2.It also interacts with RNAPⅡ, NELF and Spt5 to regulate NELF-mediated RNAPⅡpause/release and processivity at coding genes .Recently, the integrator complex is also reported to be involved in DNA damage response , dynein recruitment to the nuclear envelope , integrity of Cajal bodies , adipose differentiation , hem-atopoiesis , ciliogenesis , tumorigenesis and generation of viral microRNAs .This review discusses related research progress in the integrator complex .
7.The expression and significance of peripheral blood of Toll-like receptor-4 and cytotoxic T lymphocyte-associated antigen-4 in patients with essential hypertension
Si CHEN ; Zhong ZHOU ; Sheng JING
The Journal of Practical Medicine 2014;(22):3601-3603
Objective To investigate the expression and significance of Peripheral blood of Toll-like receptor-4 and cytotoxic T lymphocyte-associated antigen-4 in patients with essential hypertension. Methods We selected 35 patients with hypertension and 20 healthy people.We used flow cytometry to investigate TLR4 expression levels, and ELISA to detect the expression of CTLA-4. Results TLR4 expression in peripheral blood of patients with hypertension was (8.63 ±1.16)%, significantly higher (5.27 ± 1.25)%.The difference was statistically significant (t = 6.16,P < 0.05); CTLA-4 expression in peripheral blood of patients with hypertension was significantly higher (P<0.05); Hypertensive patients with CTLA-4 positive rate and TC, LDL-C was positively correlated (P<0.05); TLR4 and CTLA-4 was positive correlation (r = 0.886,P < 0.05). Conclusions TLR4 and CTLA-4 were high expression in hypertensive patients with hypertension,and related to hypertension.
8.Percutaneous Intravascular Home-Made Port-Catheter System Implantation
Si ZHOU ; Jingbing WANG ; Ning MA
Journal of Interventional Radiology 1994;0(02):-
Purpose: To investigate the security and clinical value of percutaneous intravascular home-made port-catheter-system(PCS) implatation. Materials and Methods: This technique was used to treat thoracic, abdominal and pecvic malignant tuwcors in 63 patients. Intra-arterial injection of anticancerous agents and lipiodol were regularly carried out Via PCS. Results: All PCS implatation were successful. The PCS catheter tips were all retained within target vessels. The related complications in- cluded local hemorrhage (5 cases, 7.9%), wound delaged healing or wound dehiscence (4 cases, 6. 3%), indwelling catheter blockage (4 cases, 6. 3%), migrating of catheter tip (1case, 1.5%), local infection (2cases, 3.1%). Most of these cases were recovered after appropriate management without any fatal and pevae sequelae. Conclusion: Percutaneous Intravascular home-made port-eatheter system implantation is safe and reliable. Home-made PCS is cheaper and more suitable for chinese than im- ported products.
9.Functional Application Progression of Composite Artificial Bone Repair Materials
Mengmeng ZHOU ; Hong LIU ; Si GUO
China Pharmacist 2017;20(5):899-903
The paper retrieved the literature information on the artificial bone and composite artificial bone in CNKI, Wanfang data and foreign databases such as Pubmed and SCI-E from 2009 to 2016, and summarized the characteristics and deficiency of all kinds of artificial bone materials.On this basis, it briefly described the functional application and the principles of the composite artificial bone repair materials, and introduced the application of tissue engineering and 3D printing technology in the field, which could provide reference for the exploration of new types of composite artificial bone repair materials.
10.Clinical analysis of computed tomographic-guided lung biopsy with coaxial technique for 63 cases
Shengyi ZHOU ; Shuzhang CHENG ; Guangyan SI
Chinese Journal of Primary Medicine and Pharmacy 2017;24(16):2480-2483,后插5
Objective To evaluate diagnostic value and analyze the complications of the lung nodules by 64 slice CT guided percutaneous thoracic biopsy(PTB)with coaxial technique.Methods The clinical data of 63 patients with lung placeholder in coaxial line casing biopsy under CT guidance were retrospectively analyzed.After CT positioning,16G coaxial trocar rapidly passed through the pleura,the tip to the edge of the tumor or pathological lesions,pulled out the needle core,the coaxial sleeve in 18G semi automatic biopsy needle,the materials were multi-angle cuted and sent to the pathology examination,the positive rate and the incidence of complications were analyzed.Results In 63 cases of lesions under CT guidance,the success rate of drawing materials was 100.0%,the pathological diagnosis rate was 88.9%.Intraoperative and postoperative complications occurred in 18 cases,the incidence rate was 28.6%,among them 9 cases of pneumothorax(14.3%),pulmonary hemorrhage in 8 cases(12.7%),hemoptysis in 1 case(1.6%),no severe adverse reaction was observed.Conclusion Multi slice CT guided percutaneous coaxial biopsy has the advantages of simple operation,high diagnosis rate,less complications,low risk,it can be promoted in hospitals.