27 results on '"Feng QC"'
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2. Clinical application of ERCP concurrent laparoscopic cholecystectomy in the treatment of cholecystolithiasis complicated with extrahepatic bile duct stones.
- Author
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Shen JB, Chen PC, Su JG, Feng QC, and Shi PD
- Abstract
Objective: To compare the clinical efficacy of endoscopic retrograde cholangiopancreatography (ERCP) combined with laparoscopic cholecystectomy (LC) and laparoscopic common bile duct exploration and lithotomy (LCBDE) in the treatment of cholecystolithiasis combined with bile duct stones., Methods: From September 2018 to January 2022, 195 patients with cholecystolithiasis complicated with extrahepatic bile duct stones from Department of Department of General Surgery, Shanghai Jiading Central Hospital met the inclusion criteria, including 60 cases in the LC group and 86 cases in the LCBDE group. The general condition, operation success rate, complications and residual stone rate of the two groups were retrospectively analyzed., Results: In the simultaneous operation group, 58 patients successfully performed ERCP, and the indwelling rate of the abdominal drainage tube (41.7 % vs. 95.3 %) was significantly better than that in the LCBDE group. There was no significant difference in the conversion rate to open surgery, operation time, and intraoperative blood loss between the two groups. In the simultaneous surgery group, 4 patients (6.7 %) developed pancreatitis after ERCP, which was cured by conservative treatment. The pain score at 6 h after operation was significantly lower than that in the LCBDE group (3.9 ± 1.6 vs 6.5 ± 2.4). There were no significant differences in biliary leakage (1.7 % vs. 4.7 %), postoperative cholangitis (5.0 % vs. 5.8 %), incision infection (3.3 % vs. 3.5 %), and bile duct stone residue rate (5.0 % vs 3.5 %) between the two groups. There was no severe pancreatitis, second operation or death. The duration of hospital stay was shortened in the concurrent operation group (5.1 ± 2.3d vs 7.9 ± 3.7d), and the operation cost was significantly higher than that in the LCBDE group (48839.9 ± 8549.5 vs 34635.9 ± 5893.7 yuan)., Conclusion: ERCP combined with LC and LCBDE are both safe and effective methods for the treatment of cholecystolithiasis combined with extrahepatic bile duct stones. The simultaneous operation group has certain advantages in patient comfort and rapid rehabilitation, which can be popularized in qualified units., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 Published by Elsevier Ltd.)
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- 2024
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3. Targeting ONECUT3 blocks glycolytic metabolism and potentiates anti-PD-1 therapy in pancreatic cancer.
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Chen PC, Ning Y, Li H, Su JG, Shen JB, Feng QC, Jiang SH, Shi PD, and Guo RS
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- Humans, Cell Line, Tumor, Cell Proliferation genetics, Lactic Acid, Glycolysis, Tumor Microenvironment, Pancreatic Neoplasms genetics, Carcinoma, Pancreatic Ductal genetics
- Abstract
Background: Reprogramming glucose metabolism, also known as the Warburg effect (aerobic glycolysis), is a hallmark of cancers. Increased tumor glycolysis not only favors rapid cancer cell proliferation but reprograms the immune microenvironment to enable tumor progression. The transcriptional factor ONECUT3 plays key roles in the development of the liver and pancreas, however, limited is known about its oncogenic roles, particularly metabolic reprogramming., Methods: Immunohistochemistry and Western blotting are applied to determine the expression pattern of ONECUT3 and its clinical relevance in pancreatic ductal adenocarcinoma (PDAC). Knockdown and overexpression strategies are employed to determine the in vitro and in vivo functions of ONECUT3. Chromatin immunoprecipitation, luciferase reporter assay, and gene set enrichment analysis are used to decipher the molecular mechanisms., Results: The glycolytic metabolism is inversely associated with T-cell infiltration in PDAC. ONECUT3 is identified as a key regulator for PDAC glycolysis and CD8
+ T-cell infiltration. Genetic silencing of ONECUT3 inhibits cell proliferation, promotes cell apoptosis, and reduces glycolytic metabolism as evidenced by glucose uptake, lactate production, and extracellular acidification rate. Opposite effects of ONECUT3 are observed in overexpression studies. ONECUT3 enhances aerobic glycolysis via transcriptional regulation of PDK1. Targeting ONECUT3 effectively suppresses tumor growth, increases CD8+ T-cell infiltration, and potentiates anti-PD-1 therapy in PDAC. Pharmacological inhibition of PDK1 also shows a synergistic effect with anti-PD-1 therapy. In clinical setting, ONECUT3 is closely associated with PDK1 expression and T-cell infiltration in PDAC and acts as an independent prognostic factor., Conclusions: Our study reveals a previous unprecedented regulatory role of ONECUT3 in PDAC glycolysis and provides in vivo evidence that increased glycolysis is linked to an immunosuppressive microenvironment. Moreover, targeting ONECUT3-PDK1 axis may serve as a promising therapeutic approach for the treatment of PDAC., (© 2023. Springer Nature Switzerland AG.)- Published
- 2024
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4. Intra-Sac Injection of Thrombin During Endovascular Aneurysm Repair to Remedy Type II Endoleak and Promote Sac Shrinkage.
- Author
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Zhao SL, Xiong JP, Luan JY, Jia ZC, Han JT, Feng QC, Zhuang JM, Li TR, Wang CM, and Li X
- Subjects
- Humans, Endoleak diagnostic imaging, Endoleak etiology, Endoleak surgery, Endovascular Aneurysm Repair, Thrombin adverse effects, Treatment Outcome, Risk Factors, Retrospective Studies, Blood Vessel Prosthesis Implantation adverse effects, Aortic Aneurysm, Abdominal diagnostic imaging, Aortic Aneurysm, Abdominal surgery, Aortic Aneurysm, Abdominal complications, Endovascular Procedures adverse effects
- Abstract
Purpose: To evaluate the safety and effectiveness of intra-sac thrombin injection to remedy type II endoleaks (T2ELs) during endovascular aneurysm repair (EVAR)., Materials and Methods: 224 cases abdominal aortic aneurysm (AAA) were treated with EVAR. For the 52 cases of intra-operative type II endoleaks and 8 cases of ruptured AAAs, after the grafts were deployed, thrombin was injected into the aneurysm sac through a preset catheter. The occurrence of endoleaks post-EVAR were followed up with by Computed Tomography (CT) angiogram. The diameter and the volume of the aneurysm sac were also measured. Endpoints included incidence of T2ELs, AAA sac shrinkage and re-intervention rate and all-cause mortality., Results: The overall technical success rate was 100%. Fifty-two patients were followed up with for 9-56 (median 24) months. No serious complications were observed during follow-up. The incidence of endoleak was 5.8% (3/52) during follow-up. The maximum diameter of the aneurysm decreased from 61.1 ± 14.2 mm to 53.7 ± 10.6 mm, 47.9 ± 8.3 mm and 43.7 ± 7.2 mm (87.9%, 78.4% and 71.5% of pre-EVAR) at the 6-month, 1-year and 2-year follow-up, respectively ( P < .05). The volume of the aneurysm sac shrank from 236.2 ± 136.2 cm
3 to 202.6 ± 114.1 cm3 , 155.6 ± 68.4 cm3 and 129.7 ± 52.4 cm3 (85.8%, 65.9%, and 54.9% of pre-EVAR) at the 6-month, 1-year and 2-year follow-up, respectively ( P < .05). The rate of various endoleaks was 5.8% (3/52) and the re-intervention rate was 1.9% (1/52) in this research., Conclusions: Clinical outcomes show that intra-sac injection of thrombin during EVAR is safe and may be effective in remedying small amount and low-velocity endoleaks and promoting shrinkage of the aneurysm sac., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.- Published
- 2024
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5. Magnetic field evolution in [Formula: see text] collisions at [Formula: see text].
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Zhang CH, Feng QC, Ren YY, Hua LM, and Huo L
- Abstract
In high energy heavy-ion collisions, the high speed valence charges will produce intense electromagnetic fields within the resulting quark-gluon plasma. Utilizing the AMPT model, this paper presents a comprehensive analysis of the magnetic field distribution generated from non-central collisions between [Formula: see text] nuclei at [Formula: see text]. The initial geometric parameters of the collision and the electric conductivity of the quark-gluon plasma have a dominant influence on the evolution of the magnetic field, while the plasma diffusion and the CME effect have a lesser impact and only slightly involve the original magnetic field by inducing new magnetic fields. This finding suggests that the dynamics of the quark-gluon plasma can be roughly decoupled from the effect of the electromagnetic field., (© 2023. The Author(s).)
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- 2023
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6. [Application of Rotarex catheter system in femoropopliteal artery stenosis accompanied with thrombosis].
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Zhuang JM, Li TR, Li X, Luan JY, Wang CM, Feng QC, and Han JT
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- Male, Female, Humans, Middle Aged, Aged, Aged, 80 and over, Retrospective Studies, Constriction, Pathologic, Platelet Aggregation Inhibitors, Treatment Outcome, Catheters, Femoral Artery surgery, Thrombosis
- Abstract
Objective: To evaluate the effectiveness and safety of Rotarex catheter system in treating femoropopliteal artery stenosis accompanied with thrombosis., Methods: From Jun. 2017 to Dec. 2019, the clinical data of 32 femoropopliteal artery stenosis accompanied with thrombosis cases treated with Rotarex catheter system were retrospectively analyzed. There were 23 males and 9 females aged from 50 to 89 years and the mean age was (70.7±10.3) years. Six cases had acute course of disease (≤2 weeks), 17 cases had subacute course of disease (>2 weeks, ≤3 months), and 9 cases had chronic course of disease (>3 months). Mean lesion length was (23.4±13.7) cm, mean occlusion length was (19.9±13.3) cm, and in-stent occlusion 7 cases. The superficial femoral artery (SFA) was involved in 13 cases, the popliteal artery (PA) was involved in 8 cases, and both SFA and PA were involved in the other 11 cases. All the cases were treated with Rotarex catheter system. When necessary, suction with large lumen catheter was enabled. Residual stenosis was treated with percutaneous transluminal angioplasty (PTA). Drug-coated balloon (DCB) was only used in patients with financial status, and stent was used only when it was necessary. Heparin was used for 24 h after procedures, and after that, antiplatelet agents were used. Doppler ultrasonography was taken during the followed-up., Results: Technical success was 100%, and mean procedure time was (107.4±21.5) min. 8F (1F≈0.33 mm) and 6F Rotarex catheter were used in 27 and 5 cases respectively. In 27 cases, forward flow was obtained immediately after debulking with Rotarex catheter, and in the other 5 cases, suction with large lumen catheters were used. PTA was used in all 32 cases. DCB were used in 8 cases, of which 4 were used in in-stent stenosis. Twelve cases were implanted stents. There were no perioperative deaths. The only one procedure related complication was distal embolism. We took out the thrombus with guiding catheter. In all cases, mean hospital stay were (4.6±1.5) d. The ankle brachial index increased from 0.32±0.15 to 0.86±0.10 after treatment ( t =-16.847, P < 0.001). The Rutherford stages decreased significantly ( Z =-4.518, P < 0.001). All the patients were followed up for 6.0-36.0 months, and the median time was 16.0 months. 2 cases stopped antiplatelet agents, which resulted in acute thrombosis. Another percutaneous mechanical thrombectomy and PTA were taken in one of them. Two cases died of cardiovascular disease during the follow-up, and no amputation was observed. Target lesion restenosis occurred in 7 cases during the follow-up, and target lesion revascularization (TLR) was taken in two of them., Conclusion: In treating femoropopliteal artery stenosis accompanied with thrombosis, Rotarex catheter can remove thrombus effectively, and that can expose underlying lesions and reduce stent use and complications rates. It is a safe and effective method.
- Published
- 2023
7. [Application of mechanical debulking in arteriosclerosis occlusive disease of lower extremity].
- Author
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Zhuang JM, Li TR, Li X, Luan JY, Wang CM, Feng QC, and Han JT
- Abstract
Objective: To evaluate the effect of mechanical debulking in treating arteriosclerosis occlusive disease of lower extremity. Methods: The clinical data of 52 arteriosclerosis occlusive disease of lower extremity cases treated with Rotarex mechanical debulking system from June 2017 to June 2020 at Department of Intervention Vascular Surgery,Peking University Third Hospital were retrospectively analyzed. There were 37 males and 15 females,aged(69.4±10.1)years(range:47 to 89 years).Lesion length was (21.6±12.9)cm(range:4 to 45 cm),occlusion length was (18.5±11.8)cm(range:4 to 45 cm).The lesion was located in iliac artery(IA) in 6 cases,femoral-popliteal artery(FPA) in 42 cases,and both IA and FPA in 4 cases. All the cases were treated with Rotarex mechanical debulking system. Residual stenosis more than 50% were treated with percutaneous transluminal angioplasty(PTA).Drug coated balloon was used in part of them,and stent was used only when it was necessary. The patient's operation, complications, postoperative target vessel restenosis and reoperation were collected. The paired sample t test and rank sum test was used for data comparison and the postoperative target vessel patency rate was analyzed by Kaplan-Meier survival curve. Results: All the 52 cases obtained technical success. Percutaneous transluminal angioplasty was used in all cases,and drug coated balloon were used in 11 cases. Twenty-six stents were implanted in 24 cases (2 cases implanted 2 stents).Nine stents were implanted in IA and 15 in FPA. The length of stents was (11.3±3.3)cm(range:6 to 23 cm).There were 3 procedure related complications: one of them was acute occlusion in an iliac lesion,and thrombectomy was applied urgently,and the result was good. And the other two were distal embolism. The thrombus were took out with guiding catheter. The hospital stay was (4.8±1.9)days. The ankle brachial index increased from 0.34±0.16 to 0.81±0.16 after treatment( t =-25.160, P <0.01).The Rutherford stages decreased from ( M (IQR)) 3(1) to 1(1( Z =-6.825, P <0.01).The median followed up time was 19 months(range:6 to 42 months).Two cases stopped antiplatelet agents during follow-up and which result in acute thrombosis 2 weeks and 2 months later respectively. One of them was treated with percutaneous mechanical thrombectomy and the other one was not for gastrointestinal hemorrhage. Four cases died during follow-up,one case died of lung cancer,one died of abdominal infection,and the other 2 cases died of cardiovascular disease,and no amputation was observed. Target lesion restenosis(TLR) more than 50% occurred in 13 cases during the follow-up. All TLR were observed in FPA,and target lesion revascularization was taken in 3 of them. According to Kaplan-Meier survival curve analysis,half-year,1-year and 2-year cumulative patency rates of target vessels in this group was 94.2%,87.4% and 51.4%, respectively. And half-year and 1-year cumulative patency rates just in FPA cases was 92.9% and 84.3%, respectively. Conclusions: Percutaneous mechanical debulking using Rotarex catheter combining PTA can reduce the use of stents in femoral-popliteal artery. It is safe and effective in treating with arteriosclerosis obliterans of lower extremity.
- Published
- 2022
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8. [Application of Rotarex mechanical thrombectomy system in acute lower limb ischemia].
- Author
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Zhuang JM, Li TR, Li X, Luan JY, Wang CM, Feng QC, and Han JT
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- Aged, Aged, 80 and over, Humans, Middle Aged, Retrospective Studies, Ischemia, Thrombectomy
- Abstract
Objective: To evaluate the effectiveness and safety of Rotarex mechanical thrombectomy system in treating acute lower limb ischemia., Methods: From December 2017 to December 2019, the clinical data of 23 acute lower limb ischemia cases treated with Rotarex mechanical thrombectomy system were retrospectively analyzed. There were 14 males and 9 females from 53- to 84-year-old patients and the mean age was (69.1±9.1) years. Duration of symptoms was 6 hours to 14 days (median time 7 days). In the study, 8 acute thromboembolism cases and 15 acute thrombosis cases were included (In which, there was one thromboangiitis obliterans case and two in-stent restenosis cases). In 5 cases, the lesions were located above the groin; in 16 cases, the lesions were located below the groin, and in the other 2 cases, the lesions were located both above and below the groin. All the cases were treated with Rotarex mechanical thrombectomy system. When residual stenosis was greater than 50%, percutaneous transluminal angioplasty (PTA) was used, and stent was used only when it was necessary. Heparin was used 24 h after the procedure, and after that, antiplatelet agents were used in acute thrombosis cases, and oral anti-coagulants were used in acute thromboembolism cases. Doppler ultrasonography was taken during the follow-up., Results: In all the 23 cases, there were 22 successful cases and 1 unsuccessful case, the mean procedure time was (68.2±15.6) min. Percutaneous transluminal angioplasty was used in 18 cases, 7 of which were implanted stents (3 stents were implanted in iliac artery and 4 in superficial femoral artery). There were 3 procedure related complications. The first one was arterial wall injury which resulted in contrast medium extravazation, and in this case, we solved it with prolonged balloon inflation. The second one was distal embolism. We took out the thrombus with guiding catheter. The last one was acute occlusion in a stent, and thrombectomy was applied urgently, and the result was good. Mean hospital stay were (3.6±1.7) days. The ankle brachial index (ABI) increased from 0.25±0.10 to 0.85±0.16 after treatment ( t =12.901, P < 0.001). All the patients were followed up for 4.0-28.0 months, and the median time was 12.0 months. One patient stopped antiplatelet agents, which resulted in acute thrombosis 2 months later. Another percutaneous mechanical thrombectomy and PTA were taken. In the failed case, the patient suffered amputation above the knee 3 months later and in another case, the patient died of heart failure 8 months after the procedure. Two target lesion restenosis occurred during the follow-up. Because the patients' symptom was not sever, no procedure was taken., Conclusion: Percutaneous mechanical thrombectomy using Rotarex catheter is safe and effective in treating acute lower limb ischemia. For one side, it can restore blood flow to the affected limbs quickly, and for the other, it has the characteristics of minimally invasive and good repeatability. So it should be considered that this me-thod can be widely used for acute lower limb ischemia.
- Published
- 2021
9. [Application of Rotarex mechanical thrombectomy system in treating in-stent restenosis of lower extremity arteriosclerosis obliterans].
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Zhuang JM, Li TR, Li X, Luan JY, Wang CM, Feng QC, and Han JT
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- Aged, Female, Femoral Artery, Humans, Lower Extremity, Male, Middle Aged, Recurrence, Retrospective Studies, Stents, Thrombectomy, Treatment Outcome, Arteriosclerosis Obliterans complications, Arteriosclerosis Obliterans surgery, Coronary Restenosis
- Abstract
Objective: To evaluate the role of Rotarex mechanical thrombectomy system in treating instent restenosis of peripheral artery disease (PAD)., Methods: The clinical data of 7 in-stent restenosis (ISR) cases of lower extremity PAD from June 2017 to Dec 2018 were retrospectively analyzed. There were 5 males and 2 females and the mean age was (70.0±7.6) years from 59.0 to 76.0 years. All the cases were treated by Rotarex mechanical thrombectomy system. In the 7 cases, time interval from the previous stent implantation to ischemia recurrence was 1.0 to 72.0 months, and the median time was 6.0 months. The period from ischemia recurrence to endovascular therapy was 3 days to 2 years, and the median time was 62 days. Rotarex mechanical debulking catheter and percutaneous transluminal angioplasty (PTA) were used in all the cases, and the stent was used only when it was necessary. Anticoagulation was used for 24 hours after procedures and then antiplatelet agents were used as usual. Doppler ultrasonography was taken during the followed-up., Results: All the 7 cases were successful in technology, 3 of which were implanted with new stents for the fracture of the old ones. while for the other four cases, no new stent was implanted. The ankle-brachial index (ABI) increased from 0.31±0.08 to 0.86±0.08 after treatment ( t =-12.84, P < 0.001). Thrombectomy was applied urgently in one case because of acute thrombosis in the stent, and the result was good. There was no other complications in hospital. All the patients were followed up for 5.0-22.0 months, and the median time was 14.0 months. No death and amputation occurred during the follow-up. One patient stopped antiplatelet agents because of gastrointestinal bleeding, which resulted in acute thrombosis. in-stent restenosis reappeared in 3 cases., Conclusion: Debulking using Rotarex catheter is safe and effective in treating in-stent restenosis of PAD, especially in reducing stents implantation, but is not good at dealing with old thrombus and proliferating intima, and can do nothing about fractured stents and hyperplasia of intima, so it needs to be combined with stents and drug coated balloons.
- Published
- 2021
10. One-year outcomes of radiofrequency ablation of incompetent perforator veins using the radiofrequency stylet device: Cohort study from East Asia.
- Author
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Wang CM, Zhao SL, Feng QC, Gai S, and Li X
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- Cohort Studies, Humans, Retrospective Studies, Saphenous Vein surgery, Treatment Outcome, Catheter Ablation, Radiofrequency Ablation, Varicose Veins surgery, Venous Insufficiency diagnostic imaging, Venous Insufficiency surgery
- Abstract
Objectives: The present study was designed to assess outcomes of patients undergone radiofrequency ablation (RFA) for their incompetent perforator veins (IPVs) with ClosureFast stylets., Methods: Data of 165 IPVs in 138 limbs of 117 consecutive patients between July 2017 to Nov. 2019 were retrospectively reviewed. Primary endpoints (technical success rate, complications) and secondary endpoints (VCSS) were analyzed., Results: The immediate technical success rate was 100%. There were no major complications. The rate of ecchymosis and induration was 5.8%. 129/165 IPVs in 79.5% (93/117) patients had achieved sonographic evaluation at 1 year followed-up, in which 3 perforators were recanalized. VCSS scores at pre-operation and 1-year follow-up were 5.77 ± 1.88 and 2.70 ± 1.39, respectively ( t = 29.644, P = .000)., Conclusions: In conclusion, RFA is safe and effective for the treatment of IPVs. At the 1-year follow-up, the RFA of IPVs showed a low recanalization rate and had a satisfactory improvement on VCSS.
- Published
- 2021
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11. BUB1B promotes extrahepatic cholangiocarcinoma progression via JNK/c-Jun pathways.
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Jiao CY, Feng QC, Li CX, Wang D, Han S, Zhang YD, Jiang WJ, Chang J, Wang X, and Li XC
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- Cell Line, Tumor, Disease Progression, Humans, MAP Kinase Signaling System, Prognosis, Bile Duct Neoplasms genetics, Cell Cycle Proteins metabolism, Cholangiocarcinoma genetics, Protein Serine-Threonine Kinases metabolism
- Abstract
Currently, the controversy regarding the expression profile and function of BUB1B in different malignancies still exist. In this project, we aimed to explore the role and molecular mechanism of BUB1B in the progression of extrahepatic cholangiocarcinoma (ECC). The expression levels of BUB1B in human ECC were evaluated by immunohistochemistry, western blot, and real-time PCR. The role and mechanism of BUB1B in CCA cell proliferation and invasion were investigated in both in vitro and in vivo functional studies. To indicate the clinical significance, a tissue microarray was performed on 113 ECC patients, followed by univariate and multivariate analyses. The expression of BUB1B was increased in both human CCA tissues and CCA cells. Results from loss-of-function and gain-of-function experiments suggested that the inhibition of BUB1B decreased the proliferation and invasiveness of CCA cells in vitro and in vivo, while overexpression of BUB1B achieved the opposite effect. Furthermore, the activation of c-Jun N-terminal kinase-c-Jun (JNK)-c-Jun pathway was regulated by BUB1B. BUB1B regulated the proliferation and invasiveness of CAA cells in a JNK-c-Jun-dependent manner. Clinically, ECC patients with BUB1B high expression had worse overall survival and recurrence-free survival than those with BUB1B low expression. Multivariate analysis identified that BUB1B was an independent predictor for postoperative recurrence and overall survival of ECC patients. In conclusion, BUB1B promoted ECC progression via JNK/c-Jun pathways. These findings suggested that BUB1B could be a potential therapeutic target and a biomarker for predicting prognosis for ECC patients.
- Published
- 2021
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12. PPARGC1A is upregulated and facilitates lung cancer metastasis.
- Author
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Li JD, Feng QC, Qi Y, Cui G, and Zhao S
- Subjects
- AMP-Activated Protein Kinases genetics, AMP-Activated Protein Kinases metabolism, Animals, Biomarkers, Tumor metabolism, Brain Neoplasms metabolism, Brain Neoplasms secondary, Carcinoma, Non-Small-Cell Lung metabolism, Carcinoma, Non-Small-Cell Lung secondary, Cell Line, Cell Line, Tumor, Epithelial-Mesenchymal Transition, Female, Gene Expression Profiling, Humans, Lung metabolism, Lung pathology, Lung Neoplasms metabolism, Lung Neoplasms pathology, Mice, Mice, Nude, Neoplasm Staging, Neoplasm Transplantation, Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha metabolism, Signal Transduction, Sirtuin 1 genetics, Sirtuin 1 metabolism, Snail Family Transcription Factors metabolism, Transcriptional Activation, Biomarkers, Tumor genetics, Brain Neoplasms genetics, Carcinoma, Non-Small-Cell Lung genetics, Gene Expression Regulation, Neoplastic, Lung Neoplasms genetics, Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha genetics, Snail Family Transcription Factors genetics
- Abstract
Lung cancer remains a leading cause of cancer-related mortality, with metastatic progression remaining the single largest cause of lung cancer mortality. Hence it is imperative to determine reliable biomarkers for lung cancer prognosis. We performed quantitative real-time PCR (qRT-PCR) analysis to explore epithelial-mesenchymal transition (EMT) inducers that regulate EMT process in three patients with advanced lung cancer disease. Peroxisome proliferator-activated receptor gamma (PPARGC1A) was uniformly the topmost overexpressed gene in all three human non-small cell lung cancer (NSCLC) patient samples. Further evaluation in human normal lung and metastatic lung cancer cell lines revealed that the expression of PPARGC1A was upregulated in metastatic lung cancer cell lines. Metagenomic analysis revealed direct correlation among PPARGC1A, zinc-finger transcription factor snail homolog 1 (SNAI1), and metastatic lung disease. Upregulation of PPARGC1A transcript expression was independent of a differential upregulation of the upstream AMP-dependent protein kinase (AMPK) activation or steady state expression of the silent mating type information regulation 2 homolog 1 (SIRT1). Xenograft tail vein colonization assays proved that the high expression of PPARGC1A was a prerequisite for metastatic progression of lung cancer to brain. Our results indicate that PPARGC1A might be a potential biomarker for lung cancer prognosis., (Copyright © 2017. Published by Elsevier Inc.)
- Published
- 2017
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13. [Significance of renal filtration fraction evaluation of renal artery stenting for atherosclerotic renal artery stenosis treatment].
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Feng QC, Li X, Luan JY, Wang CM, and Li TR
- Subjects
- Angioplasty statistics & numerical data, Antihypertensive Agents therapeutic use, Biomarkers blood, Blood Vessel Prosthesis Implantation statistics & numerical data, Creatinine blood, Creatinine metabolism, Female, Humans, Hypertension, Renovascular drug therapy, Hypertension, Renovascular etiology, Ischemia etiology, Ischemia physiopathology, Ischemia surgery, Kidney blood supply, Kidney physiopathology, Male, Reference Values, Renal Artery Obstruction complications, Stents statistics & numerical data, Atherosclerosis surgery, Glomerular Filtration Rate physiology, Hypertension, Renovascular surgery, Recovery of Function physiology, Renal Artery surgery, Renal Artery Obstruction surgery, Renal Plasma Flow, Effective physiology
- Abstract
Objective: To investigate the significance of filtration fraction (FF) and renal artery stenting in the treatment of atherosclerotic renal artery stenosis., Methods: In the study, 42 cases of renal artery stenosis were treated with 52 renal artery stent implantation. Percutaneous transluminal renal angioplasty and stent (PTRAS) of the patients' health side kidney, ipsilateral kidney (renal) glomerular filtration rate (GFR), renal effective renal plasma flow effective renal plasma flow (ERPF), kidney filtration fraction changes of preoperative and postoperative serum creatinine (SCR) and the changes in the patients with blood pressure (SBP) and the changes after taking antihypertensive drugs were observed and analyzed., Results: The 52 cases of renal artery stent implantation were all successful. Preoperative ipsilateral GFR was significantly lower than that of normal side (t=-3.989, P=0.000); preoperative ipsilateral ERPF was significantly lower than the contralateral side (t=-4.926, P=0.000). On both sides, the overall FF values were equal (t=1.273, P=0.207). Postoperative ipsilateral renal GFR was increased, but there was no statistical difference (t=-1.411, P=0.164). Postoperative ipsilateral renal ERPF was increased significantly (t=-4.954, P=0.000), and FF lower (closer to the normal value (t=3.274, P=0.002). Postoperative side GFR was significantly reduced (t=2.569, P=0.000), the contralateral ERPF was significantly reduced (t=3.889, P=0.001), and FF had no significant change (t=-0.758, P=0.454). Postoperative side GFR was lower than that of the contralateral (t=-3.283, P=0.002) and postoperative side ERPF was still lower than that of the contralateral (t=-3.351, P=0.001), but on both sides, the FF values were equal (t=-0.361, P=0.719). Preoperative FF was relatively normal in the patients with kidney, and the postoperative FF value change was small (t=0.799, P=0.430); preoperative FF was significantly higher in the patients with kidney, and the postoperative FF value was lower than the preoperative (normal value, t=5.299, P=0.000). Postoperative overall serum creatinine was significantly decreased (t=2.505, P=0.016); but for the patients with unilateral renal artery stenosis, the changes in serum creatinine had no statistical difference (t=1.228, P=0.299); and for the patients with bilateral renal artery stenosis and serum creatinine compared with the preoperative, the changes were decreased significantly (t=2.518, P=0.030); postoperative blood pressure (SBP) was significantly decreased compared with that before operation (t=8.945, P=0.000); antihypertensive drugs taken were decreased significantly compared with the preoperative (t=5.280, P=0.000)., Conclusion: For the patients with renal artery stenosis, FF is a useful index to understand the pathophysiological process of renal ischemia. Whether preoperative FF is significantly increased or FF is relatively normal, should be regarded as the indications of renal artery stent implantation.
- Published
- 2017
14. [Relative factors of type II endoleak after endovascular aneurysm repair].
- Author
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Luan JY, Li X, Fu J, Wang CM, Li TR, Zhuang JM, Feng QC, Han JT, and Dong GX
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- Embolization, Therapeutic, Humans, Retrospective Studies, Tomography, X-Ray Computed, Treatment Outcome, Aortic Aneurysm, Abdominal surgery, Blood Vessel Prosthesis Implantation, Endoleak, Endovascular Procedures
- Abstract
Objective: To study the relative factors of type II endoleak after endovascular aneurysm repair (EVAR) for abdominal aortic aneurysms., Methods: Twenty-eight cases of abdominal aortic aneurysms treated by EVAR were retrospectively analyzed. The characteristics of the inferior mesentery arteries (IMA), the arc Riolan and the lumbar arteries of the cases with or without type II endoleak were analyzed., Results: Type II endoleak was found in 8 (28.6%) cases, of which, 2 were type IIa and 6 were type IIb. The diameter of the IMA originating part of the cases with type II endoleak [(4.03 ± 1.00) mm] was significantly bigger than that without endoleak [(2.89 ± 0.50) mm, P=0.007]. The number of the lumbar arteries originating from the aneurysm sac in cases with type II endoleak (3.4 ± 0.8) was significantly more than that without endoleak (1.9 ± 1.5, P=0.017). However, type II endoleak was irrelevant to the diameter of originating part of the lumbar arteries and the form of the arc Riolan. After the average 14.5 months follow-up, the aneurysm sac was found with shrinkage in 1 case, no change in 2 cases, and augment in 5 cases. Secondary transarterial embolization was performed for only 1 case., Conclusion: Type II endoleak was much easily found in cases with bigger diameter of originating part of the IMA, or in cases with more lumbar arteries originating from the aneurysm sac.
- Published
- 2015
15. [Comparison of curative effect and thrombolysis time between r-tPA application and urokinase in the interventional thrombectomy and thrombolysis for acute and severe pulmonary embolism].
- Author
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Feng QC, Li X, Dong GX, Fu J, and Wang CM
- Subjects
- Arteries, Blood Pressure, Hemorrhage, Humans, Oxygen, Pulmonary Embolism therapy, Thrombectomy, Thrombolytic Therapy, Tissue Plasminogen Activator therapeutic use, Urokinase-Type Plasminogen Activator therapeutic use
- Abstract
Objective: To study the influence of r-tPA and urokinase in curative effect and thrombolysis time on patients with acute and severe pulmonary embolism after interventional thrombectomy., Methods: After reviewing and analyzing the clinical data of 19 acute and severe pulmonary embolism patients, we classified them into two groups in accordance with the application of r-tPA and urokinase to compare the changes of their heart rate, blood pressure, pulmonary arterial pressure, arterial partial pressure of oxygen and hemachrome before and after thrombolysis, as well as the thrombolysis effect time the two groups took., Results: The heart rate, blood pressure, pulmonary arterial pressure, arterial partial pressure of oxygen of the patients in both groups gained remarkable improvement after operation (P<0.05); the pulmonary arterial pressure of the r-tPA patient group dropped but not significantly compared with that before operation (P>0.05); the pulmonary arterial pressure of the urokinase patient group dropped significantly compared with that study before operation (P<0.05); the hemachrome of both patient groups did not significantly drop after operation (P>0.05); the thrombolysis effect time by adopting r-tPA was remarkably shorter than that caused in thrombolysis by adopting urokinase (P<0.05)., Conclusion: Both r-tPA and urokinase are effective in interventional thrombolysis for acute and severe pulmonary embolism. However, r-tPA could significantly shorten the time caused in thrombolysis without increasing any bleeding risk.
- Published
- 2014
16. New fluorescent sensor for Cu(2+) and S(2-) in 100% aqueous solution based on displacement approach.
- Author
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Fu Y, Feng QC, Jiang XJ, Xu H, Li M, and Zang SQ
- Subjects
- Benzimidazoles chemistry, Benzimidazoles pharmacology, Benzoates chemistry, Benzoates pharmacology, Cell Line, Tumor, Cell Survival drug effects, Humans, Magnetic Resonance Spectroscopy, Microscopy, Fluorescence, Molecular Structure, Spectrometry, Mass, Electrospray Ionization, Benzimidazoles chemical synthesis, Benzoates chemical synthesis, Copper analysis, Spectrometry, Fluorescence methods, Sulfides analysis
- Abstract
An On-Off-On type fluorescent sensor (HL) has been developed, which exhibited high selectivity and sensitivity for Cu(2+) over other common ions in 100% aqueous solution. Once HL combined with Cu(2+), blue fluorescence was almost completely quenched and the L-Cu ensemble was formed. Moreover, the ensemble showed high specificity for S(2-) based on the displacement approach, and no interferences were observed in the presence of other anions. Such fluorescence modulation behavior simulates the performance of an IMPLICATION logic gate. In addition, the fluorescent sensor was successfully applied to fluorescent cellular imaging implying potential applications in physiological and environmental systems.
- Published
- 2014
- Full Text
- View/download PDF
17. Genetic variants of phosphodiesterase 4D gene are associated with an enhanced risk for ischemic stroke in young Chinese population.
- Author
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He Y, Yang DZ, Yu H, Li MY, Feng QC, and Zheng H
- Subjects
- China, Cyclic Nucleotide Phosphodiesterases, Type 3 genetics, Genetic Predisposition to Disease, Humans, Polymorphism, Single Nucleotide, Brain Ischemia genetics, Cyclic Nucleotide Phosphodiesterases, Type 4 genetics, Stroke genetics
- Abstract
Background: Previous studies have shown that the phosphodiesterase 4D (PDE4D) gene is a susceptibility gene for ischemic stroke (IS) primarily in elder populations. However, few studies have reported the role of the PDE4D gene polymorphisms in a young cohort., Aims: To investigate the association between the PDE4D gene polymorphisms and young-onset IS in Chinese population., Materials and Methods: A total of 186 young patients (18-45 years) with IS and 232 matched control subjects were recruited. Two SNPs (rs918592 and rs2910829) in PDE4D gene were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Odds ratio and 95% confidence intervals (95% CI) were calculated to test the association between the genetic factors and IS., Results: The rs918592A/A genotype frequency and A allele frequency, rs2910829 CT/TT genotype frequency and T allele frequency of young IS group were significantly higher than those of the control group ( P < 0.05). Besides, the frequency of Hap (A-T) was remarkably higher in the young patients than that in the controls (OR =4.047, 95% CI: 3.521-4.652). Hap (A-C) and Hap (G-C) were associated with decreased risk of IS (OR =0.640, 95% CI: 0.452-0.906; OR =0.675, 95% CI: 0.466-0.978, respectively)., Conclusions: Our findings suggest that the rs918592 and rs2910829 polymorphisms and haplotypes of PDE4D gene are significantly associated with IS in Chinese young population.
- Published
- 2013
- Full Text
- View/download PDF
18. Sex-dependent association of phosphodiesterase 4D gene polymorphisms with ischemic stroke in Henan Han population.
- Author
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He Y, Bai JY, Song B, Tan S, Chang YS, Li T, Shi CC, Zhang H, Feng QC, Qi H, Song GY, Zheng H, and Xu YM
- Subjects
- Aged, Female, Genetic Predisposition to Disease genetics, Genotype, Haplotypes genetics, Humans, Linkage Disequilibrium, Male, Middle Aged, Sex Factors, Brain Ischemia genetics, Cyclic Nucleotide Phosphodiesterases, Type 4 genetics, Polymorphism, Genetic genetics, Stroke genetics
- Abstract
Background: Recent evidence has implicated the gene for phosphodiesterase 4D (PDE4D) as susceptibility gene for ischemic stroke (IS) in Icelandic population. However, there are few reports on the associations between PDE4D gene polymorphisms and IS in Chinese individuals. The present study aimed to investigate the possible association of genetic polymorphisms in PDE4D gene with IS in Henan Han population., Methods: A total of 400 patients with IS and 400 matched controls were examined using a case-control design. Two single nucleotide polymorphism (SNPs) (rs918592 and rs2910829) in PDE4D gene were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Odds ratios (OR) and 95% confidence intervals (95%CI) were calculated to test the association between the genetic factors and IS. Genetic parameter and association studies were carried out with SPSS 16.0., Results: Among the two SNPs tested, the rs918592 was significantly associated with IS (OR: 1.351, 95%CI: 1.110 - 1.645), especially in male patients (OR: 1.427, 95%CI: 1.105 - 1.844). Haplotype analysis showed that A-T was associated with an increased risk of the IS (OR: 2.114, 95%CI: 2.005 - 2.230) while G-T was associated with decreased risk of IS (OR: 0.419, 95%CI: 0.302 - 0.583). Protecting effect of haplotype G-T was also significant in males (OR: 0.264, 95%CI: 0.162 - 0.431)., Conclusions: The present study demonstrated a strong association of rs918592 with IS. Haplotype A-T increased the risk of IS while haplotype G-T had a protective effect in Henan Han population. The association was sex-dependent with male patients showing stronger effect.
- Published
- 2012
19. [Successful endovascular repair of isolated iliac aneurysm and reserving the internal iliac artery with fenestrated covered stent].
- Author
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Luan JY, Li X, Feng QC, Wang CM, Fu J, and Zhuang JM
- Subjects
- Aged, Follow-Up Studies, Humans, Male, Endovascular Procedures methods, Iliac Aneurysm surgery, Iliac Artery surgery, Stents
- Abstract
Isolated iliac aneurysm is rare and difficult for surgery repair because it locates in the deep pelvis. Endovascular repair is preferred currently, and internal iliac artery is generally embolized in order to avoid the endoleak. Embolization of the internal iliac artery can lead to the complications such as buttock claudication, colon ischaemia and erectile dysfunction. Therefore, the antegrade flow of internal iliac artery should be reserved. One seventy-seven-year-old male patient with isolated left common iliac aneurysm, 30 mm in diameter, was successful endovascular repaired using fenestrated covered stent. At 1-month follow up, the patient was asymptomatic. Computed tomography scan shows the iliac aneurysm was completely excluded, and the antegrade flow of the left common, internal and external iliac arteries were normal.
- Published
- 2012
20. [A study on paternity testing with 96 autosomal SNPs].
- Author
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Lee L, Wang L, Feng QC, Zhu YL, Cheng XL, Kong XD, Huang YM, Wang WF, and Zeng ZS
- Subjects
- Fathers, Female, Genotype, HapMap Project, Humans, Male, Mothers, Genetic Testing methods, Paternity, Polymorphism, Single Nucleotide genetics
- Abstract
Objective: To explore the feasibility of applying autosomal single nucleotide polymorphisms (SNPs) on parentage testing., Methods: All SNP genotyping results of HapMap (r27) were downloaded from the website. With self-made computer programs, SNPs were extracted when their minor allele frequency (MAF) were ≥ 0.30 among all of the 11 HapMap populations. Ninety-six SNPs were chosen and integrated into the Illumina Goldengate bead arrays on the condition that no linkage disequilibrium was found between them. Three father-child-mother trios (9 samples in total) were tested with the arrays. Cumulative paternity index (CPI) was then calculated and compared with genotyping results using 15 short tandem repeats (STRs)(Identifiler(TM))., Results: Family 1 was found to have nine SNPs or seven STRs that did not conform to the Mendelian laws, Family 2 had 13 such SNPs or seven STRs, and Family 3 only had one such SNP but no STR. For Family 3, when all of the 96 SNPs were used in combine, the CPI was 1207, which had contrasted with the CPI by the 15 STRs, i.e., 355 869., Conclusion: When applied to paternity testing, the paternity exclusion (PE) value for a SNP is usually less than 1/3 of that of a STR. The proportion of SNPs not comforming to the Mendelian laws for the tested SNPs may not be as high as that of inconsistent STRs over all tested STRs. Because of the low mutation rate of a SNP, the CPI will be greatly reduced even if one SNP did not conform to the Mendelian laws. Therefore, highly accurate testing methods are required to reduce artificial errors when applying SNPs for paternity testing.
- Published
- 2012
- Full Text
- View/download PDF
21. Pulse width modulation electro-acupuncture on cardiovascular remodeling and plasma nitric oxide in spontaneously hypertensive rats.
- Author
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Xiong X, You C, Feng QC, Yin T, Chen ZB, Ball P, and Wang LX
- Abstract
This study was designed to investigate the effect of pulse width modulation electro-acupuncture (PWM-EA) on cardiovascular remodeling and nitric oxide (NO) in spontaneously hypertensive rats (SHR). Thirty-four male SHR were randomly divided into control, captopril, and two PWM-EA groups, which were treated with 350 Hz (SHR-350 Hz) and whole audio bandwith electro-acupuncture (SHR-WAB group) respectively, on the ST 36 point located on the outside of the hind leg. Systolic blood pressure (BP), plasma and myocardial NO were measured. Histological studies were also performed on the aortic wall and the left ventricle. The BP in the SHR-350 Hz, SHR-WAB and the captopril groups was lower than in the control group following the treatment (P < .05). The average aortic media wall thickness in the two electro-acupuncture groups was less than in the control group (P < .05). The left ventricle/heart weight ratio in the captopril and SHR-350 Hz groups was less than in the control group (P < .01), but was similar between the SHR-WAB and the control group (P > .05). The plasma and myocardium NO levels were elevated in the captopril and the SHR-350 Hz group (P < .05 and .01, resp.). The plasma level of NO in the SHR-WAB group was also higher than in the control group (P < .05). We concluded that pulse width modulation electro-acupuncture on the ST 36 point prevents the progression of hypertension and diminishes the cardiovascular remodeling in SHR. It also elevates plasma and cardiac NO in this animal model.
- Published
- 2011
- Full Text
- View/download PDF
22. [Electronic spectra and energy levels analysis of Ho3+ in Cs2NaYF6].
- Author
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Zhou XJ, Ren CD, Luo B, and Feng QC
- Abstract
The electronic spectra and energy levels of Ho3+ in Cs2NaYF6 were studied on basis of rare earth (RE) spectrum, quantum mechanics and crystal field theory. Detailed analysis on electronic absorption spectra at temperatures down to 10 K in the range of 4600-24,000 cm(-1) was carried out. The transitions, with zero phonon lines (ZPL) and abundant vibronic sidebands, from ground states to different excited states such as 5I(J); (J = 7, 6, 5, 4), 5F(S) (S = 5, 4, 3), 5G(P) (P = 6, 5) and (3)K8 were clearly observed. All the transitions have been assigned and 50 experimental crystal field levels have been obtained. The dataset has been investigated by standard f-shell program, which gave out the calculated energy levels and the corresponding empirical Hamiltonian parameters. The comparison of the energy levels and Hamiltonian parameters was made with that of Cs2NaYCl6 : Ho3+ as well.
- Published
- 2010
23. [Detecting the information of cucumber in greenhouse for picking based on NIR image].
- Author
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Yuan T, Xu CG, Ren YX, Feng QC, Tan YZ, and Li W
- Subjects
- Color, Fruit, Plant Leaves, Robotics, Agriculture methods, Algorithms, Cucumis sativus, Spectroscopy, Near-Infrared
- Abstract
For the cucumber harvesting robot, the identification of target information is one of important tasks in the automation of fruit-picking. In order to implement spatial fruit localization and quality discrimination in greenhouse, this paper presented a machine vision algorithm for the recognition and detection of cucumber fruits based on near-infrared spectral imaging. By comparing the spectral reflectance of cucumber plant (fruit, leaf and stem) from visible to infrared region (325-1 075 nm) measured by ASD FieldSpec Pro VNIR spectrometer, a monospectral near-infrared image at the 850 nm sensitive wavelength was captured to cope with the similar-color segmentation problem in complex environment. Then, a method of fruit extraction was developed on the basis of the following steps. Firstly, from the gray level histogram it was observed that the pixels of fruit distributed on the right are lesser than that of background, so "P parameter threshold method" was used to image segmentation. Subsequently, divided local image was partitioned into several sub-blocks by the application of adaptive template mining, which was feasible for processing the fruit with long-column feature. Finally, noises including parts of stem and leaf were eliminated using estimation condition of barycentre position and area size, proved by relative experiment In addition, the region for robotic grasping was established by gray variation between fruit-handle and fruit pedicel, as the quality feature was extracted with morphological characteristics of the centre-line length and the fruit flexure degree. A detecting experiment was carried out on 30 images with cucumber fruits and 10 images with no fruits, which were taken in a changing greenhouse environment. The results indicate that the accuracy rate of the recognition was 83.3% and 100%, while the success rate of effectively acquiring the grasping region was 83.3%, which can meet the demand of robotic fruit-harvesting.
- Published
- 2009
24. [Relationship between liver pathological characteristics and serum HBeAg and HBV DNA in 1057 patients with chronic hepatitis B].
- Author
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Fan HM, Zhang CL, Ying RS, Chen ZM, and Feng QC
- Subjects
- Hepatitis B virus genetics, Hepatitis B virus immunology, Hepatitis B, Chronic virology, Humans, Liver pathology, Liver virology, DNA, Viral blood, Hepatitis B e Antigens blood, Hepatitis B, Chronic blood, Hepatitis B, Chronic pathology
- Abstract
Objective: To study the relationship between liver pathological changes and serum HBeAg and HBV DNA in 1057 patients with chronic hepatitis B., Methods: Liver puncture biopsy for histopathological examinations were performed in 1057 patients with chronic hepatitis B. The quantitative analysis of serum HBV DNA by fluorogenic quantitative PCR and HBeAg by chemoluminescence were also conducted., Results: The inflammatory grade and fibrosis stage were higher in HBeAg-negative patients (G4 and S4 were 7.83% and 12.17% respectively) than in HBeAg-positive patients (G4 and S4 were 3.39% and 5.44% respectively). The inflammatory grade and fibrosis stage were higher in HBeAg-positive patients with low-level HBV DNA (G3G4 was 45.64% and S3S4 was 30.20% for HBV DNA104-105), whereas they were higher in HBeAg-negative patients with high-level HBV DNA (G3G4 was 54.55% for HBV DNA106-107 and S3S4 was 42.85% for HBV DNA108-109)., Conclusion: There were some correlation between the liver pathological changes and serum HBeAg and HBV DNA levels in patients with chronic hepatitis B. It is important to perform the liver pathological examination and antiviral therapy as early as possible in patients with HBeAg-negative chronic hepatitis B.
- Published
- 2008
25. Epidemiological evidences from China assume that psychiatric-related diseases may be associated with Toxoplasma gondii infection.
- Author
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Zhu S, Guo MF, Feng QC, Fan JM, and Zhang LX
- Subjects
- Animals, Cats, China epidemiology, Geography, Humans, Mental Disorders etiology, Psychotic Disorders epidemiology, Psychotic Disorders etiology, Seroepidemiologic Studies, Mental Disorders epidemiology, Toxoplasmosis epidemiology
- Abstract
In recent years, the effect of Toxoplasma gondii infection on psychiatric-related aspects has been increasingly recognized. T. gondii has a high affinity for brain tissue where tachyzoites may form tissue cysts and persist life long. In recent years, 15 serological surveys about T. gondii infection and psychiatric diseases have been carried out in different areas in China. Studies showed that the prevalence of antibodies against T. gondii in psychotic patients was much higher than in normal persons; statistically differences were significant. Studies also reported that raising cats or enjoying the habit of eating raw or under cooked meet were potential risk factors for the infection of T. gondii. The epidemiological and serological evidence support the hypothesis that some psychiatric diseases such as schizophrenia or mental retardation might be linked to T. gondii infection.
- Published
- 2007
26. [Effects of short interval successive partial hepatectomy on ACP, AKP, HSC70/HSP68 and PCNA in rat liver].
- Author
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Xu CS, Lu AL, Feng QC, and Li GW
- Subjects
- Animals, Female, Liver Regeneration physiology, Male, Rats, Rats, Sprague-Dawley, Acid Phosphatase metabolism, Alkaline Phosphatase metabolism, HSP70 Heat-Shock Proteins metabolism, Hepatectomy, Liver metabolism, Proliferating Cell Nuclear Antigen metabolism
- Abstract
In this paper, the models of 36-4-4 SISPH and 4-36-36-36 SISPH were used to analyze the changes of activity and content of ACP, AKP, HSC70/HSP68 and PCNA in rat liver. The results showed that the activities of 140 kD ACP and AKP in SISPH were increased following the increase of SISPH number of times, but that of 160 kD ACP and AKP were decreased following the increase of SISPH number of times. The content of PCNA in 4-36-36-36 SISPH were more than that in 36-4-4 SISPH, in contrast for HSC70/HSP68 in these two models. Therefore, the content and activities of ACP, AKP, HSC70/HSP68 and PCNA could be strongly effected by SISPH number of times and SISPH methods. Its mechanisms and physiological significance were discussed.
- Published
- 2001
27. Minute esophageal granular cell tumor: a case report with immunohistochemical and ultrastructural examination.
- Author
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Yoshimi N, Tanaka T, Feng QC, Ishizaki N, Kan S, and Mori H
- Subjects
- Adult, Esophageal Neoplasms analysis, Esophageal Neoplasms pathology, Humans, Immunohistochemistry, Male, Neoplasms, Muscle Tissue analysis, Neoplasms, Muscle Tissue pathology, S100 Proteins analysis, Esophageal Neoplasms ultrastructure, Neoplasms, Muscle Tissue ultrastructure
- Abstract
A small granular cell tumor (GCT) of the esophagus, which developed in a 44-year-old Japanese man and was removed by endoscopic polypectomy, is presented. Histopathologically, the tumor, located in the submucosa, was composed of uniform neoplastic cells with nuclei and abundant round or oval cytoplasm containing eosinophilic granules. An immunohistochemical examination showed positive reactions with S-100 protein, especially the beta subunit, and neuron specific enolase in the neoplastic cells. Electron microscopic observation revealed abundant electron-dense or light granules and myelin-like structures in the cytoplasm. These findings support the concept that esophageal GCT is derived from Schwann cells.
- Published
- 1988
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