2.Dual anatomical steel plate for the surgical management of intercondylar fracture of humerus through approach of osteotomy of olecranon
Yuping LAN ; Fenglin ZHONG ; Bing XU
Orthopedic Journal of China 2006;0(24):-
[Objective]To explore the surgical management and its results of intercondylar fracture of humerus through approach of osteotomy of olecranon(AOO) with dual anatomical steel plate DASP.[Method]From July 2002 to March 2006,26 patients of intercondylar fracture of humerus were treated surgically through AOO,and the fracture was reduced and fixed with DASP.The patients were 19 males and 7 females with a mean age of 35 years (range 15~46 years),According to Riseborough and Radin classification,type Ⅱ fracture was found in 6 cases,type Ⅲ in 18,type Ⅳ in 2.Early rehabilitation exercises was taken.[Result]Twenty-five fractures were satisfactory reduced but one not too good,none had incision infection,injuries of the ulnar nerve.Twenty-two patients were followed up from 6 months to 19 months(average 13.5 months),of these 22 patients,all the osteotomies healed in 17 weeks averagely(range 14~24 weeks) and the injuried ulnar nerve recovered completely.The function of the elbow(according to Cassbaum scale) showed excellent in 5 cases,good in 13,fair in 3 and poor in 1.the good-excellent rate was 81.8%.[Conclusion]The technique of DASP for the treatment intercondylar fracture of humerus through transolecranon approach offers many advantages,such as sufficient exposure easy to get anatomical reduction,stable fixation and earlier exercise.
3.The effects of angiotensinⅡ on the proliferation in human breast cancer cell line MCF-7 through AT1R/ERK/MAPK pathway
Xiaohong ZHONG ; Xiaoan WU ; Bing HU
China Oncology 2014;(9):652-656
Background and purpose:Studies have shown that renin-angiotensin system (RAS) is closely associated with tumor progress. angiotensinⅡ (AngⅡ) is the most important component of RAS. This study aimed to investigate the possible mechanism by which AngⅡ affected the cell proliferation in human breast cancer cell line MCF-7.Methods:CCK-8 was used to investigate the cell proliferation alteration of MCF-7 cells after treatment of AngⅡ at different dose and time. The inlfuence of losartan (an AT1R inhibitor) and PD98059 (a MAPK inhibitor) in AngⅡ-enhanced cell proliferation was detected by CCK-8. Protein expression was analyzed by Western blot.Results:AngⅡ stimulated the growth of breast cancer cells in a dose- and time-dependent manner. The maximal proliferation effect on MCF-7 cells was obtained with 10-7 mol/L AngⅡ and 24 h, respectively (P<0.000 1). Losartan signiifcantly decreased the level of AngⅡ-induced proliferative effects (P<0.05). Western blot showed that AngⅡ caused rapid activation of p-ERK. In addition, PD98059 could signiifcantly suppress AngⅡ-promoted cell proliferation.Conclusion:AngⅡ can promote MCF-7 cell proliferation through AT1R/ERK/MAPK pathway activation, which could be reversed by losartan or PD98059. Therefore, targeting AngⅡ/AT1R/MAPK signaling could be a novel therapeutic for breast cancer.
4.Implantation of plate and hollow screw for the repair of the split fracture of greater tuberosity of humerus:comparison of shoulder joint function
Guangyong WANG ; Junsheng DU ; Bing ZHONG
Chinese Journal of Tissue Engineering Research 2014;(40):6482-6487
BACKGROUND:Canada Montreal Scholar Mutch et al have recently proposed a new morphologic classification of fracture of greater tuberosity of humerus. They divided these fractures into three typeavulsion, split and depression.
OBJECTIVE:To compare the recovery of shoulder function after conventional plate-screw and hol ow-screw fixation for the repair of the split fracture of greater tuberosity of humerus.
METHODPatients with greater tuberosity of humerus, who were treated in the Department of Orthopedics of Yichang Yiling Hospital, China from January 2010 to January 2014, were classified according to Mutch’s classification. A total of 83 patients with split greater tuberosity of humerus after complete fol ow-up were retrospectively analyzed. Of them, 23 cases received plate-screw fixation as plate-screw group, and 60 cases received hol ow-screw fixation as hol ow-screw group. Visual Analog Scale, the United States Scores of Shoulder and Elbow Surgeons, and Constant and Murley Scoring Systems were utilized to assess the therapeutic outcomes. Patient’s pain and changes in shoulder function were analyzed before and after treatment.
RESULTS AND CONCLUSION:A total of 83 patients were fol owed up. Fixator was obtained at 1 year after surgery in al patients. No significant difference in Visual Analog Scale, the United States Scores of Shoulder and Elbow Surgeons, and Constant and Murley Scoring Systems was detected in both groups before treatment (P>0.05). Significant differences in Visual Analog Scale, the United States Scores of Shoulder and Elbow Surgeons, and Constant and Murley Scoring Systems were detectable in both groups at 16 months after removal of the fixator (P<0.05). Data were better in the hol ow-screw group than in the plate-screw group. Above results suggested that hol ow-screw fixation in the repair of split fracture of greater tuberosite of humerus is simple to be operated, with smal trauma, and is an ideal fixation method. Clinical repair effect is better than plate-screw fixation.
5.Gelatin sponge impregnated with hemocoagulase reduces postoperative blood loss of patients with lumbar fractures undergoing posterior spinal decompression
Junsheng DU ; Guangyong WANG ; Bing ZHONG
Chinese Journal of Tissue Engineering Research 2014;(34):5530-5534
BACKGROUND:A single hemostatic material has been proved not to facilitate wound healing or to produce certain adverse reactions; while composites composed of two or three different materials can improve the
advantage and histocompatibility of hemostatic materials.
OBJECTIVE:To investigate the effect of gelatin sponge impregnated with hemocoagulase solution on amount of bleeding in patients with lumbar fractures undergoing posterior spinal decompression.
METHODS: Fifty patients with lumbar fractures who were scheduled for open reduction, pedicle screw fixation
and laminectomy were enroled, including 25 cases treated with gelatin sponge impregnated with hemocoagulase before surgical incision closure as test group and 25 cases treated with single gelatin sponge before surgical
incision closure as control group. Postoperative drainage volume, drainage time, length of stay, number of re-admissions and postoperative complications were compared between the two groups.
RESULTS AND CONCLUSION:The postoperative drainage volume, drainage time and length of stay in the test group were significantly less than those in the control group (P < 0.000 1). No infection, epidural hematoma, or
re-admission of patients was found, and there was no hemocoagulase-impregnated absorbable gelatin sponge- related adverse reaction. These findings indicate that posterior laminectomy with hemocoagulase-impregnated gelatin sponge can significantly reduce patients’ postoperative wound drainage and shorten the length of stay.
6.Selection of targeted glioblastoma tumor cell-binding and internalizing peptides through phage display vector
Bing WANG ; Xueyun ZHONG ; Yanfang QIN ; Ying ZHONG ; Lina YU
Chinese Journal of Pathophysiology 1989;0(05):-
AIM: To isolate peptides targeted binding and internalizing into glioblastoma cell line SWO-38. METHODS: Tumor cells were screened five rounds of whole cell screen through the Ph.D.-12 phage display library. The monoclone specific binding efficiency to the tumor cell was analyzed, and the DNA of phages were extracted, sequenced and translated to the sequences of amino acid. RESULTS: In the phage library after five rounds of screen , 10 of 13 monoclones had highly selective binding to SWO-38 cells. We found two repeated peptide sequences. CONCLUSION: Whole cell screening against tumor cells through random phage peptide library can obtain phage peptides with highly specific binding and internalizing ability. The peptides could be used as a therapy vector for tumor targeted delivery.
8.Isometricity of grafts in ACL reconstruction under bone tunnel shifting condition
Mohammed ALJABERI ; Bing-Fang ZENG ; Jin-Zhong ZHAO ;
Chinese Journal of Orthopaedic Trauma 2004;0(07):-
Objective To explore the isometricity of grafts in ACL(anterior cruciate ligament)recon- struction under bone tunnel shifting condition.Methods Knee specimens from ten fresh frozen cadavers were used. Femoral tunnels of 2 mm were drilled at three points on the medial aspect of the lateral condyle.The first was“anterior bundle point”(located at the 11 o'clock position in the right knee and 1 o'clock position in the left knee).The second was“error point”(located at the place 5 mm anterior and distal to the“anterior bundle point”).The third was“posterior bundle point”(located at the crossing point of the long axis of the ACL attachment and a vertical line drawn across the femoral-tibial contact point with the knee flexed at 90?).Moreover,tibial tunnels of 2 mm were drilled at three points on the tibial plateau.The first was“central point”(located at the center of original insertion of ACL).The second was“5 mm posterior point”,located at the place 5 mm posterior to the“central point”.The third was“10 mm posterior point”,located at the place 10 mm posterior to the“central point”.Changes in distance between each pair of tibial and femoral tunnels were measured during passive knee flexion-extension.Results The anterior-posterior shifting of the tibial tunnel was found to have little influence(P>0.05)on the isometricity after the femoral tunnel had been chosen.However,the shifting of the femoral tunnel was found to have significant influence(P<0.01)on the isometricity.Changes in distance related to the“anterior bundle point”led to lengths within the physiologic isometric range.Changes in distance related to the“error point”led to lengthening(ligament stretching)beyond the physiologic isometric range.Changes in distance related to the“posterior bundle point”led to shortening(ligment relaxing)beyond the physiologic isometric range.Conclusion Anterior-posterior shifting of the tibial tunnel between the center of original insertion and posterior edge of inter-tibial eminence area has little influence on the isometricity of grafts in ACL double bundle reconstruction.
9.Phytohaemagglutinin stimulates the proliferation of peripheral blood mononuclear cells and expression of secretory cytokines
Ding WANG ; Bing SONG ; Xuan ZHONG ; Xiaofang SUN ; Yong FAN
Chinese Journal of Tissue Engineering Research 2014;(23):3707-3714
BACKGROUND:Phytohemagglutinin (PHA) can stimulate the peripheral blood mononuclear cells (PBMCs) into cellcycle, and cause their immune activation, which is a common immune proliferation model. However, the role of non-PBMC ingredient of peripheral blood is unclear, as wel as the expression of endothelial cells related cytokines. OBJECTIVE:To study the effect of whole blood culture and PBMCs alone culture with PHA on the PBMC proliferation and apoptosis, expression of inflammatory cytokine and endothelial cellsecreted cytokine markers. METHODS:Morphological changes of PBMCs separated from normal karyotype human peripheral blood individual y cultured with or without PHA were observed. The PBMCs were col ected by whole blood culture or PBMC separated culture. mRNA was extracted for the fluorescence quantitative RT-PCR, which was applied to detect the cellproliferation, apoptosis, and expression of inflammatory cytokine and endothelial cellsecreted cytokines. The statistic analysis was used for the significance explication. RESULTS AND CONCLUSION:PBMCs alone cultured ere different from those undergoing whole blood culture. The PHA could up-regulate the gene expression of Ki67, proliferating cellnuclear antigen, Caspase 3, interferon-γ, tumor necrosis factor-βand interleukin-6, but down-regulate Protein C. This indicted that PHA could promote the proliferation and apoptosis of PBMCs and up-regulate the expression of inflammatory cytokines, but down-regulate the expression of endothelial cells secreted coagulation cytokines.
10.Clinical observation of jiont analyesia in labor
Shaomei LIN ; Bing LIN ; Yanping ZHONG ; Zexi LIN ; Danfen XU
Chinese Journal of Primary Medicine and Pharmacy 2012;19(13):1966-1967
Objective To evaluate the effect of nitrous oxide-inhale combined with lidocaine-injection by Ciliao and Uterine points and single therapy in labor analgesia,and the impact on maternal and child.Methods 400 cases were randomly divided into four groups.Observation group:100 cases take the therapy of Nitrous oxide-inhale combined with lidocaine-injection in Ciliao and Uterine points in the time of active period.Control group 1:100 cases take the therapy of gas mixture-inhale( 50% Nitrous oxide and 50% Oxygen) in the time of active period.Control group 2:100 cases take the therapy of lidocaine-injection in Ciliao and Uterine points in the time of active period.Control group 3:100 cases do not take any analgesia.Analgesic effects,labor time,mode of delivery,neonatal conditions,the amount of bleeding in every group were observed.Results There was statistically significant differences between the observation group with the control group 1,2,3 on analgesic effects ( x2 =48.513,P < 0.05 ) labor time( F =782.88,1120.81,1104.57,all P < 0.05 ),mode of delivery ( x2 =85.715,P < 0.05 ),neonatal conditions,the amount of bleeding( F =422.66,P < 0.05 ).Conclusion Combination therapy was more effective than the single treatment.