1.Surgical treatment of unilateral destroyed lung
International Journal of Surgery 2009;36(8):562-565
Destroyed lung has resulted in the pathological changes of irreversible lung damage. The variety of reasons cause lobes of lung or the side of the whole lung loss of function and volume decrease. To the side of lung damage for patients.,it is necessary to take the whole side of surgical resection of lung disease at the right time Not only it can quickly alleviate the respiratory symptoms, but also can significantly improve the patients quality of life. Even some benign disease can be cured to achieve the purpose. Because of the extensive fibrosis of lung tissue loss of the affected lung function. Patients have varying degrees of shortness of breath and recurrent cough, cough purulent sputum, hemoptysis. Because of the thickened parietal pleura,those result in the effect of bad medical treatment. Most need surgical treatment, but the surgery cause perioperative patient physiological condition of interference, Major trauma surgical procedures, much more bleeding, and many and serious postoperative complications, those require a higher surgical technique. The article summed up the whole lung damage lung surgical methods and progress were reviewed.
2.Inhibitory effect of miR-146a on high glucose-induced apoptosis of retinal microvascular endothelial cells and its mechanism
Fei GAO ; Zhipeng WU ; Yihua RUAN
Chinese Journal of Experimental Ophthalmology 2021;39(5):398-403
Objective:To investigate the effect of microRNA-146a (miR-146a) on apoptosis of human retinal microvascular endothelial cells (HRMECs) induced by high glucose and its possible molecular mechanism.Methods:HRMECs were cultured in vitro with 5.5 mmol/L D-glucose in the normal control group and 25 mmol/L D-glucose in the high glucose group for 48 hours, respectively.Normally cultured HRMECs were transfected by miR-146a mimics in the high glucose+ miR-146a mimics group or corresponding mimics control in the high glucose+ mimics control group by lipofection and cultured with 25 mmol/L D-glucose for 48 hours, respectively.Real-time fluorescent quantitative polymerase chain reaction (PCR) was performed to detect the expression level of miR-146a.MTT assay and flow cytometry were used to detect the activity and apoptosis of HRMECs, and Western blot was employed to detect the expression levels of apoptosis-associated protein B-cell lymphoma factor-2 (Bcl-2), Bcl-2 related X protein (Bax) and nuclear factor-κB (NF-κB) signaling-related proteins NF-κB p65 and p-NF-κB p65. Results:The relative expression levels of miR-146a were 1.00±0.10, 0.22±0.02, 0.21±0.02 and 0.88±0.09, and the cell viability was (100.00±10.06)%, (68.41±6.67)%, (67.91±6.74)% and (90.46±8.97)%, and the apoptosis rates were (3.11±1.02)%, (27.28±3.56)%, (27.44±4.03)% and (7.29±2.11)% in the normal control group, high glucose group, high glucose+ mimics control group and high glucose+ miR-146a mimics group, respectively.The relative expression levels of miR-146a and the cell viability were significantly lower, and the cell apoptosis rate was significantly higher in the high glucose group than those in the normal control group, with statistical significant differences (all at P<0.05). The relative expression levels of miR-146a and the cell viability were significantly higher, and the cell apoptosis rate was significantly lower in the high glucose+ miR-146a mimics group than those in the high glucose group and the high glucose+ mimics control group, and the differences were statistically significant (all at P<0.05). The relative expression levels of Bax and p-NF-κB p65 protein were significantly higher, the relative expression level of Bcl-2 protein was significantly lower in the high glucose group than those in the normal control group, showing statistically significant differences (all at P<0.05). The relative expression levels of Bax and p-NF-κB p65 protein were significantly lower, and the relative expression level of Bcl-2 protein was significantly higher in the high glucose+ miR-146a mimics group than those in the high glucose group and the high glucose+ mimics control group, and the differences were statistically significant (all at P>0.05). There was no significant difference in the relative expression of NF-κB p65 protein among the groups ( F=0.106, P=0.955). Conclusions:Overexpression of miR-146a may inhibit the apoptosis of HRMECs induced by high glucose, and its mechanism may be related to the inhibition of NF-κB signaling pathway activation.
3.The relationship between consciousness, memory and event-related potentials during propofol sedation and anesthesia
Di WU ; Yun YUE ; Zhipeng XU
Chinese Journal of Anesthesiology 1995;0(12):-
Objective To determine the changes in event-related potentials (ERPs) and examine the relationship between memory, consciousness and ERPs during propofol sedation and anesthesia. Methods Ten young healthy volunteers were enrolled in this study. Baseline values of ERPs, noninvasive BP (NBP), ECG and SpO2 were recorded before induction of sedation and anesthesia. The level of sedation was assessed using OAA/S scale. Sedation and anesthesia were induced and maintained with target-controlled infusion (TCI) of propofol. The amplitude, peak value and latency of the potential N1 and P3, NBP ECG and SpO2 were recorded at each level of sedation and anesthesia. A list of words was played via headphone at OAA/S score of 3 or 2. Memory test was performed 4hr after the recovery from anesthesia. Target and distractor hits in inclusion and exclusion test were obtained and explicit and implicit memory scores were calculated. Results (1) At OAA/S score of 3 the amplitude of N1 was attenuated and that of P3 suppressed ( P
4.Diagnostic value of miR-29 family in cancers: a Meta-analysis
WANG Zhipeng ; DENG Lihong ; PAN Xiongfeng ; WU Xiaoli ; LIU Aizhong
Chinese Journal of Cancer Biotherapy 2019;26(4):445-453
Objective: To determine the potential diagnostic value of miRNA-29 (miR-29) for malignant tumor. Methods: A systematic search of literature regarding miR-29 was performed in three English databases (PubMed, Web of Science, and Embase) and two Chinese databases (Chinese National Knowledge Infrastructure [CNKI] and WanFang). The retrieval was ended until September 15, 2018. Search terms included miRNA-29 (miR-29), tumor, cancer, serum, plasma, diagnosis, etc. Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) was carried out to evaluate the quality of the selected articles. STATA12.0 was used to calculate the combined sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR) and diagnostic odds ratio (DOR). Subgroup analysis and Meta-regression analysis were carried out to explore the origin of heterogeneity. Results: Twenty eligible articles were selected from 1 172 literatures related to tumors and miR-29. The combined sensitivity was 0.76 (95%CI: 0.68-0.83), combined specificity was 0.83 (95%CI: 0.74-0.89), combined PLR was 4.5 (95%CI: 2.7-7.4), combined NLR was 0.28 (95%CI: 0.20-0.41), DOR was 16 (95%CI: 7-35), and theAUC was 0.86 (95%CI: 0.83-0.89). The combined specificity of plasma samples was higher than that of serum samples, and the difference was statistically significant (P<0.01). There was a higher diagnostic value of miR-29 for breast cancer and pancreatic cancer (DOR=101.52, 11.22), but lower diagnostic value for colorectal cancer and non-small cell lung cancer (DOR=5.05, 6.57); miR-29b showed a high diagnostic value for cancer (DOR=60.91). The publication bias was not obvious in this study (P>0.05). Conclusion: This systematic review and Meta-analysis suggests that miR-29 family is a potential biomarker in the diagnosis of cancers with great sensitivity and specificity.
5.Changes in coagulation system and cytokines following intravascular stenting
Zhipeng LI ; Pengfei WU ; Zhitao JING ; Yunjie WANG
Chinese Journal of Tissue Engineering Research 2007;0(44):-
Intravascular stent as a foreign body exhibits obvious reaction following implantation,such as activation of coagulation system and elevation of serum C-reactive protein,inflammatory marker.After platelet is activated,P-selectin binds to the glycoprotein ligand 1 expressed on leukocyte,and forms congeries on the leukocyte.In addition,interleukin-1?,interleukin-6 and tumor necrosis factor-? are greatly secreted.The two factors are main reasons for restenosis following stent implantation.Studies on spiral CT angiography and transcranial Doppler sonography are important.
6.Technique and method of multi-slice CT in the examinations of laryngeal
Baojin WU ; Ting MAO ; Lianzhi TANG ; Zhipeng LIU ; Yuan TIAN
Chinese Journal of Primary Medicine and Pharmacy 2011;18(13):1749-1750,后插5
Objective To investigate the technique and method of MSCT in examination of laryngeal. Methods MSCT data of 28 patients with laryngeal carcinoma confirmed pathologically were analyzed retrospectively. Images quality was evaluated and the results obtained with various windows and CT virtual larynscopy were compared. Results All images had good quality,20 cases(69% ) could be displayed with conventional soft tissue windows,24 cases(81% ) could be demonstrated with lung windows,and 27 cases(93% ) could be demonstrated with CT virtual larynscopy. Conclusion The multislice CT could effectively demonstrate laryngeal carcinoma, and could be applied routinely in examination of laryngeal carcinoma.
7.Classification and treatment of the degloving hand
Jian DING ; Jingquan YANG ; Zhipeng WU ; Damu LIN ; Zhijie LI
Chinese Journal of Microsurgery 2015;38(6):557-560
Objective To discuss the classification and treatment of the degloving hand.Methods All 68 degloving hand treated between January, 2005 and December, 2014 in our department were reviewed.The cases were divided into three types according to the extent of the injury.Type Ⅰ the degloving tissue had enough blood supply which was debrided and stitched.Type Ⅱ the degloving tissue had less or no blood supply which was revascularized with replantation or vein anastomosis, some degloving palm or dorsum resurfaced the wound by the degloving skin graft.Type Ⅲ the degloving tissue had no blood supply or severely damaged,the tissue defect should be resurfaced with other tissue reconstruction.Type Ⅱ and Ⅲ were further divided into subtype A, B and C depending on the degloving scope and location, each subtype has its own surgical procedure.Results The total survival rate was 83.8%.The survival rate decreased with the increasing extent of the injury and the increasing degloving scope.Conclusion Classification of the hand degloving injuries depending on the extent of the injury, the degloving scope and location is useful for the assessment of injury and the selection of proper operation procedures.
8.Role of GRP78 in sevoflurane preconditioning-induced inhibition of apoptosis in cardiomyocytes of rats
Yuchao WU ; Zhipeng SUN ; Liang ZHONG ; Qiang XIANG
Chinese Journal of Anesthesiology 2015;35(3):361-365
Objective To investigate the role of glucose-regulated protein 78 (GRP78) in sevoflurane preconditioning-induced inhibition of apoptosis in cardiomyocytes of rats.Methods The cultured cardiomyocytes of Sprague-Dawley rats were randomly divided into 5 groups (n =30 each) using a random number table:control group (group C),hypoxia-reoxgenation (H/R) group,sevoflurane preconditioning group (group S),siRNA-GRP78 group and siRNA control group.H/R was produced by 2 h exposure of cells to 95% N2-5% CO2 in an air-tight chamber at 37 ℃,followed by reoxygenation with 95% O2-5% CO2 in an air-tight chamber at 37 ℃ for 1 h.In group S,the cells were incubated with 2.5% sevoflurane for 20 min,followed by 10-min washout before H/R.In siRNA-GRP78 group,the cells were transfected with siRNA-GRP78 100 nmol/L,and 24 h later preconditioning with sevoflurane was performed and H/R was produced.In siRNA group,cells were transfected with siRNA,and the other treatments were similar to those previously described in siRNA-GRP78 group.After treatment in each group,the expression of GRP78 in myocardial cells and cytochrome c in cytoplasm and mitochondria was detected by Western blot.Lactic dehydrogenase (LDH) and creatine kinase (CK) activities in the culture medium of each group were determined by ELISA.The apoptosis in myocardial cells was assessed by flow cytometry.Apoptotic rate was calculated.Intracellular free Ca2+ concentration ([Ca2+]i) was measured with the fluorescent probe Fura-2/ AM.The opening of mPTP was measured by fluorescence spectrophotometry.Results Compared to group C,the expression of GRP78 in myocardial cells and cytochrome c in cytoplasm was significantly up-regulated,LDH and CK activities in the culture medium,apoptotic rate and [Ca2+]i were increased,and the expression of cytochrome c in mitochondria was down-regulated in H/R group.Compared to group H/R,the expression of GRP78 in myocardial cells and cytochrome c in mitochondria was significantly up-regulated,LDH and CK activities in the culture medium,apoptotic rate,[Ca2+] i and opening of mPTP were decreased,and the expression of cytochrome c in cytoplasm was down-regulated in group S,and no significant change was found in the parameters mentioned above in siRNA group.Compared to group S,the expression of GRP78 in myocardial cells and cytochrome c in mitochondria was significantly down-regulated,LDH and CK activities in the culture medium,apoptotic rate,[Ca2+] i and opening of mPTP were increased,and the expression of cytochrome c in cytoplasm was up-regulated in group siRNA-GRP78.Conclusion GRP78 is involved in sevoflurane preconditioning-induced inhibition of apoptosis in cardiomyocytes of rats,and the mechanism is related to maintenance of intracellular Ca2+ stability and inhibition of opening of mPTP.
9.Application of hemi-hepatic blood flow occlusion through descending hilar plate in laparoscopic anatomic hepatectomy
Yingjun CHEN ; Zuojun ZHEN ; Zhipeng WU ; Yintao HE
Chinese Journal of Digestive Surgery 2015;14(4):339-343
Objective To explore the application value of hemi-hepatic blood flow occlusion through descending hilar plate in laparoscopic anatomic hepatectomy.Methods The clinical data of 15 patients who underwent laparoscopic anatomic hepatectomy by hemi-hepatic blood flow occlusion using descending hilar plate technique at the First People's hospital of Foshan between August 2012 and May 2014 were retrospectively analyzed.The hilar plate was bluntly dissected to expose the left and right Glissonean pedicles.Either side of Glissonean pedicle was tied up with a turnable aspirator with a cotton rope or shoelace and then bypassed the back of hilar plate.Anatomic hepatectomy was performed when hemi-hepatic blood flow was occluded.The follow-up by telephone interview and outpatient examination was done till October 2014.Results Among the 15 patients,the conversion to open surgery was done in 1 patient,Pringle maneuver in 1 patient,and hemi-hepatic blood flow occlusion by descending the hilar plate in 14 patients.Thirteen patients received succesfully laparoscopic anatomic hepatectomy by hemi-hepatic blood flow occlusion using descending hilar plate technique,including 4 of left hemihepatectomy,4 of left lateral lobectomy,2 of right hemihepatectomy,1 of right posterior lobectomy,1 of segment Ⅳ hepatectomy and 1 of segment Ⅵ hepatectomy.Bile duct exploration was applied to 4 patients with left hepatic duct stones and T-tube was placed in 2 patients.Nine and 4 patients received left and right hemi-hepatic blood flow occlusion,respectively.The operation time,mean volume of intraoperative blood loss and time of hemi-hepatic blood flow occlusion in 13 patients were (196 ±63)minutes,320 mL (range,50-1 200 mL) and (51 ± 20)minutes,respectively.The time of descending the hilar plate in 14 patients was (10 ±4)minutes.Among the 13 patients,bile leakage was detected in 1 patient with a maximum volume of drainage of 120 mL/day,liver wound bleeding in 1 patient with a volume of abdominal bloodstained drainage of 400 mL at postoperative day 2.Two patients were cured by conservative treatment,and no liver failure and perioperative death were occurred.The duration of hospital stay was (6.9 ± 2.4)days.Among the 15 patients,2 patients were loss to follow-up and other patients were followed up for 5-26 months with good survival,1 patient died.Conclusion Hemi-hepatic blood flow occlusion through descending hilar plate in laparoscopic anatomic hepatectomy is safe and feasible.
10.Tomographic ultrasound imaging for analyzing for the relative orientation of fetal heart and great arteries
Tao LIU ; Ying WU ; Yi XIONG ; Shilong LIU ; Zhipeng NI
Chinese Journal of Medical Imaging Technology 2009;25(10):1845-1848
Objective To assess the value of tomographic ultrasound imaging (TUI) for prenatal analysis of the relative orientation of fetal heart and great arteries. Methods Volume datasets acquired from 12 patients of transposition of the great arteries (TGA) and 13 normal fetal heart were evaluated offline with TUI. The aortic valves (AV) and pulmonary valves (PV) were respectively showed on the two parallel slices. According to the pivot point in the middle of the PV in one slice, the relative orientation of the AV on another slices were analyzed. Results In the 12 patients of TGA confirmed postnatally, 7 were concomitant with single ventricle anomaly, AV was on the anterior-right orientation of the PV in 5, and was relatively on the anterior and anterior-left orientation in other 2 of them.In the remained 5 with seeming normal 4 chamber view, AV was found on the anterior-right of the PV in 3, and was relatively on the anterior and upright orientation.in other 2 patients. In 13 normal fetuses, TUI showed that all AV located on the posterior-right orientation to the PV. Conclusion TUI can provide detailed spatial information of the great arteries both in normal and abnormal fetal heart. It may be a convenient and veracious tool for prenatal exploring the morphology of the great arteries.