2.Clinical study on repair of open joint wounds and/or wounds with exposed hone fracture using negative pressure wound therapy combined with artificial dermis grafting and autologous skin grafting.
Xin CHEN ; Hao WANG ; Yundong DAI ; Cong ZHANG ; Cheng WANG
Chinese Journal of Burns 2015;31(2):93-97
OBJECTIVETo explore the clinical effects of negative pressure wound therapy (NPWT) combined with artificial dermis grafting and autologous skin grafting on repair of open joint wounds and/or wounds with exposed bone fracture.
METHODSEleven patients with open joint wounds and/or wounds with exposed bone fracture, hospitalized from November 2008 to November 2014, were enrolled in the study. According to the differences of the first stage treatment, all patients were divided into experimental group ( n = 6, including 4 patients of open joint wounds, 1 patient of wound with exposed bone fracture, and 1 patient of open joint wound with exposed bone fracture), and control group ( n 5, including 2 patients of open joint wounds, 2 patients of wounds with exposed bone fracture, and 1 patient of open joint wound with exposed bone fracture). After debridement, the wounds in both groups were grafted with punctured artificial dermis, while NPWT was only used over the artificial dermis of experiment group for 1 week. In the operation at sacsod stage, autologous split-thickness skin was grafted on the vascularized artificial dermis in both groups. Results In 5 patients of open joint wounds in experimental group, the artificial dermis was vascularized well, autologous skin grafts survived, and wounds were healed. In 3 patients of open joint wounds in control group, the artificial dermis grafting all failed due to local infection, and then these wounds were repaired with local tissue flap grafting. Artificial dermis in 3 patients of wounds with exposed bone fracture in both groups was vascularized well after grafting, and the wounds were healed after autologous skin grafting, whether or not NPWT was used.
CONCLUSIONSNPWT combined with artificial dermis grafting and autolognus skin grafting can be used for repairing open joint wounds and/or wounds with exposed bone fracture.
Debridement ; Dermis ; transplantation ; Humans ; Negative-Pressure Wound Therapy ; methods ; Skin Transplantation ; methods ; Skin, Artificial ; Surgical Flaps ; Wound Healing
3.Content-based analysis of Biological Samples Library sharing in China
Cong ZHAO ; Tao DAI ; Nan WANG ; Xiaofeng JIA
Chinese Journal of Medical Library and Information Science 2017;26(2):38-41
Integration and sharing of biological samples are the most effective approach for making use of their stock and improving their utilization efficiency. Although great success has been achieved in development of Biolog-ical Samples Library in China, efforts are not made in promoting sample resource sharing. The problems in develop-ment of Biological Samples Library were thus summarized in this paper by content analysis, such as no unified crite-ria, poor administrative management, and imperfect ethical supervision of sample sharing.
4.Value of 18F-FDG PET/CT examination in the differential diagnosis of gastric cancer and primary gastric lymphoma
Cong ZUO ; Wengui XU ; Dong DAI ; Xiuyu SONG
Chinese Journal of Digestive Surgery 2015;14(3):216-220
Objective To explore the value of 18 F-fluorodeoxyglucose (i8 F-FDG) PET/CT examination in the differential diagnosis of the gastric cancer and primary gastric lymphoma (PGL).Methods The clinical data of 80 patients with gastric cancer (60 with non-mucinous adenocarcinoma and 20 with mucinous adenocarcinoma) and 47 patients with PGL [22 with mucosa-associated lymphoid tissue (MALT) and 25 with diffuse large B-cell lymphoma (DLBCL)] who were admitted to the Tianjin Medical University Cancer Institute and Hospital from June 2006 to May 2014 were retrospectively analyzed.Spiral CT scan was first done and then followed by PET.The CT value of the lesions,maximum standardized uptake value (SUVmax) of patients and maximal gastrointestinal wall thickness (THKmax) were analyzed by the ANOVA test.The SUVmax comparison between groups was evaluated with the Student-Newman-Keuls.The lesions type was analyzed by the chi-square test.The THKmax and SUVmax among groups were analyzed by the Pearson correlation analysis.Results 18 F-FDG PET/CT imaging of patients with gastric cancer and PGL showed different types of gastric wall thickening,segmental and limited thickening of gastric wall were the main features of gastric cancer and diffuse and segmental thickening of gastric wall were the main features of PGL.The type Ⅰ,Ⅱ and Ⅲ of lesions were detected in 12,21 and 27 of 60 patients with nonmucinous adenocarcinoma,in 2,7 and 11 of 20 patients with mucinous adenocarcinoma,in 8,8 and 6 of 22 patients with MALT and in 13,7 and 5 of 25 patients with DLBCL respectively.There were significant differences in the 4 pathological types of lesions among all the patients (x2 =14.849,P < 0.05).The lymph nodes beneath the renal hilum and at the retroperitoneum were involved in 16 patients with gastric cancer and in 10 patients with PGL,and 7 patients with gastric cancer and 12 patients with PGL were complicated with splenomegalia,respectively,showing a significant difference in the splenomegalia between patients with PGL and gastric cancer (x2=7.506,P <0.05).There was no significant difference in the metastasis of lymph nodes beneath the renal hilum and at the retroperitoneum between patients with PGL and gastric cancer (x2=0.178,P >0.05).Among 80 patients with gastric cancer,positive 18F-FDG was detected in 79 patients and negative 18F-FDG in 1 patient with T3 stage of mucinous adenocarcinoma.Among 47 patients with PGL,positive 18 F-FDG was detected in 46 patients and negative 18F-FDG in 1 patient with stage Ⅰ of MALT.The CT value of the lesion,SUVmax and THKmax in patients with non-mucinous adenocarcinoma,mucinous adenocarcinoma,MALT and DLBCL were (40 ± 8)HU,(39±11)HU,(41±11)HU,(38±9)HU and 9.9 ±6.6,5.6±1.9,4.6 ±2.9,18.3±7.6 and (2.1 ± 1.2) cm,(1.9 ± 0.9) cm,(1.3 ± 1.1) cm and (2.6 ± 1.5) cm,respectively,showing significant differences in the SUVmax among all the groups (F =26.920,P < 0.05).In the pairwise comparisons,there were no significant difference between the MALT group and mucinous adenocarcinoma group (P > 0.05),and significant differences among the other groups (P < 0.05).The CT value of the lesions and THKmax among all the patients were compared,with no significant differences (F =0.578,4.510,P > 0.05).There were no significant differences in the SUVmax and THKmax among all the patients (r =0.055,0.346,0.226,0.133,P > 0.05).Conclusions There is an important diagnosis value of PET/CT examination in patients with gastric cancer and PGL.The pathological types of the lesions in patients with gastric cancer and PGL are different.The occurrence of splenomegalia in patients with PGL is easier than that with gastric cancer.SUVmax of patients with DLBCL is higher than those with gastric cancer and MALT.FDG uptake in patients with mucinous adenocarcinoma and MALT are not enough,and these may lead to false negative result of PET/CT examination.
5.Clinical Significance of Detection by Fluorescence in Situ Hybridization for Bladder Cancer
Chunlei MA ; Jin SI ; Cong DAI ; Dianyong ZHANG ; Jinyi LI
Chinese Journal of Clinical Oncology 2009;36(23):1329-1332
Objective: To analyze chromosome aberrations in bladder transitional cell carcinoma with exfoliated cells, and to evaluate the clinical value of fluorescence in situ hybridization (FISH) in bladder cancer. Methods: FISH was performed using centromeric probes of 3, 7, 17 and locus probe of p16 to examine chromosome aberrations of exfoliated cells of 56 bladder cancer patients and 20 healthy controls to analyze the correlation of chromosome aberration with the pathological features of bladder cancer. The urine cytology of the 56 bladder cancer patients was performed. Results: The rates of aneuploidy of chromosomes 3, 7, and 17 were 58.9%, 39.3%, 58.9% and 75.0% for aberration of p16 in exfoliated cells from the 56 bladder cancer patients. All of the aberrations had no correlation with tumor stage (P>0.05). The aberrations of chromosomes 3, 7, and 17 were significantly correlated with pathological grade (P<0.05). The sensitivity of the 4 chromosome probes for detecting bladder cancer was 80.4%. The detection rate of FISH was obviously higher than that of udne cytology. Conclusion: Chromosome aberration is correlated with the growth of bladder cancer. The detection of FISH has significance for early di-agnosis, prognosis evaluation, and recurrence monitoring of bladder cancer.
6.Ribosome display screening of a novel human anti-IgE scFv fragment.
Yongxia ZHANG ; Baocheng WANG ; Xin YU ; Yunjian DAI ; Yongzhi HE ; Cong CONG ; Yong XIA ; Mingrong WANG
Acta Pharmaceutica Sinica 2012;47(10):1329-35
Total mRNA was extracted from lymphocytes separated from the peripheral blood of allergic patients, and then variable region of heavy chain (VH) and variable region of light chain (VL) cDNA library were constructed by RT-PCR. Human scFv templates for rabbit reticulocyte lysate ribosome display were assembled by primers and linker peptide (Gly4Ser)3. mRNA bound in antibody-ribosome-mRNA complexes was recovered using in-situ single primer RT-PCR, and three rounds of anti-IgE scFv DNA were enriched. The target DNA fragments were double enzyme digested and ligated into plasmid pET22b (+), followed by transformation in E. coli Rosseta (DE3). Positive clones were screened using clone PCR, Dot blotting and antigen ELISA. The correct lengths of VH (400 bp) and VL (710 bp) PCR products were obtained. The expected 1,000 bp ribosome display templates were also observed in agarose gel electrophoresis. After three rounds of ribosome display target sequences were effectively enriched, leading to a library of 10(13) members. Antibodies with the highest ELISA value for IgE were generated in the strain pET-IgE-6. A human anti-IgE scFv library was successfully constructed as described herein. Ribosome display using single primer in-situ RT-PCR as the recovery procedure effectively enriched target sequences. Anti-IgE scFv with high affinity and specificity were identified. The prepared human anti-IgE scFv fragment might be self-developed to a lead drug for treating asthma. Our study provides an alternative method for rapid discovery of human antibodies of therapeutic importance.
7.Influencing factor of whole-body scan imaging on radioactive io-dine treatment for lung metastases of differentiated thyroid carci-noma
Ying ZHOU ; Wengui XU ; Dong DAI ; Peiyu TUO ; Jianjing LIU ; Hui HUANG ; Cong ZUO
Chinese Journal of Clinical Oncology 2013;(24):1558-1562
Objective: Lung metastases are common in patients with differentiated thyroid carcinoma (DTC). Post-therapeutic 131I-whole-body scan (WBS) was conventionally administered after the radioactive iodine treatment (RAI) of DTC lung metastases. This study aimed to investigate the influencing factors of WBS imaging on the RAI of DTC lung metastases. Methods:DTC patients (n=60) with lung metastases treated with 131I were retrospectively included. Before treatment, the thyroid function was assessed. Neck and chest computed tomography (CT) was performed, and WBS was inspected. Patients with lung metastases were classified into negative and positive subgroups according to the imaging of 131I WBS, and the relative influencing factors were analyzed. Results:Univariate analy-sis showed that age and chest CT imaging, which revealed pulmonary fibrosis, calcification, and patchy shadows, were related to WBS imaging. Binary variable logistic regression analysis revealed that pulmonary fibrosis (OR=0.175, P<0.001) and calcification (OR=0.088, P<0.05) went against the development of WBS. Conclusion:WBS imaging on RAI of lung metastases was not obvious in the el-derly. The fibrosis, calcification, and patchy shadows of the lung were not conducive for WBS imaging. The fibrosis and calcification of the lung were the main factors that affect WBS imaging.
8.Clinical study on Ginkgo biloba lactone injection combined with rt-PA intravenous thrombolysis in treatment of acute ischemic stroke
Cong LI ; Yingjie DAI ; Wei GUO ; Guanjian LV ; Shuyang LIN ; Zhilin JIANG
Drug Evaluation Research 2017;40(6):764-768
Objective To explore the safety and clinical efficacy of Ginkgo biloba lactone injection combined with Alteplase intravenous thrombolysis in treatment of acute ischemic stroke.Methods Totally 87 patients were recruited and divided into control group and test group.The,patients in control group (39 cases) were given Alteplase 0.9 mg/kg for injection,intravenous bolus total dose 10% was given within 1 min,then intravenous infusion of the remaining 90% was given in 1 h,and given basic therapy after 24 h.The 48 cases in test group,which were immediately iv Ginkgo biloba lactone injection after intravenous thrombolysis,6 mL added into 250 mL saline,once daily for 14 d,and also were given basic therapy after 24 h.All NIHSS scores were recorded before treatment,14 d and 90 d after treatment,and the adverse events were recorded.The modified Rankin scale (mRS) score and BI index were performed at 14 and 90 d after admission.Patients in two groups were classified according to the TOAST classification,and the patients with large-arteryatherosclerosis and small-artery occlusion were analyzed.Results No intracranial hemorrhage occurred in the two groups.The NIHSS score and mRS score of test group were significantly lower than that of control group,and BI index was significantly increased 90 d after treatment.The NIHSS score and mRS score of test group were significantly lower than that of control group,and BI index was significantly increased90 d after treatment of patients with large-artery atherosclerosis.But there was no significant difference between test group and control group of patients with small-artery occlusion.Conclusion Ginkgo biloba lactone injection combined with rt-PA intravenous thrombolysis in the treatment of acute ischemic stroke has high safety,and can improve the prognosis of patients.
9.Influence of Inhaled Glucocorticosteroid on ?-Glutamylcysteine Synthetase in Inflammatory Cell of Sputum in Children with Asthma
cong-yu, DAI ; yun-fu, ZHU ; yong-liang, JIANG ; chen-tao, LIU
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To explore the influence of inhaled glucocorticosteroid on ?-glutamylcysteine synthetase(?-GCS) in inflammatory cell of sputum in children with asthma.Methods Twenty-two asthmatic children were divided into 2 groups according to treatment.The children who were treated by inhaled budesonide combined with salbutamol were due to group A and the others inhaling salbutamol only were due to group B,the healthy children were acted as healthy control group(group C).The glutation(GSH),total GSH and the activity of ?-GCS in sputum were measured respectively;Expression of ?-GCS in inflammatory cell of sputum were detected by immunohistochemistry;the expression of ?-GCS heavy chain(?-GCS-h) mRNA were detected by reverse transcriptase-polymerase chain reaction(RT-PCR).Results 1.The total GSH[(1.08?0.14) ?mol/L] and oxidized glutathione(GSSG)[(0.37?0.09) ?mol/L] were decreased in sputum of group A of post-treatment compared with pre-treatment(Pa
10.The Effect of Acromioplasty in the Suture Bridge Rotator Cuff Repair under Arthroscopy
Cong XU ; Jiangtao REN ; Jia LI ; Haifeng DAI ; Fei XU ; Yuanliang DU ; Zhihuai LI ; Yongming LV
Chinese Journal of Sports Medicine 2017;36(6):526-530
Objective To explore the clinical results of the arthroscopic acromioplasty in the rotator cuff repair.Methods Sixty-five patients (42 males and 23 females) to receive suture bridge repair under the arthroscopy between May 2012 and May 2014 were selected and randomly divided into an experimental group and a control group.The experimental group was given suture bridge repair with acromioplasty,while the control group underwent the suture bridge repair without acromioplasty.The time of operation was recorded.The range of motion (ROM) of the shoulder,the UCLA shoulder scoring system (ULCA) score,American orthopedic surgeon scoring system (ASES) score,the visual analogue scale (VAS) score and Constant score were observed 3 and 12 months after the operation.Results There were no significant differences in age,sex and the affected side between the two groups.Significant differences were found between the two groups in the duration of the operation (t=-18.5,P<0.05).There were no significant differences in the ROM and the ULCA,ASES,VAS and constant scores of the shoulder 3 and 12 months after the operation.Conclusion No significant differences were found in the ROM and the shoulder function scoring between giving acromioplasty under the arthroscopy or not.However,the operation time of undergoing acromioplasty under the arthroscopy was longer.