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Wu WC, Chen IH, Hou PY, Wang LH, Tsai CH, Cheng CP. The phosphorylation of the movement protein TGBp1 regulates the accumulation of the Bamboo mosaic virus. J Gen Virol 2024; 105. [PMID: 38189334 DOI: 10.1099/jgv.0.001945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024] Open
Abstract
Phosphorylation and dephosphorylation of viral movement proteins plays a crucial role in regulating virus movement. Our study focused on investigating the movement protein TGBp1 of Bamboo mosaic virus (BaMV), which is a single-stranded positive-sense RNA virus. Specifically, we examined four potential phosphorylation sites (S15, S18, T58, and S247) within the TGBp1 protein. To study the impact of phosphorylation, we introduced amino acid substitutions at the selected sites. Alanine substitutions were used to prevent phosphorylation, while aspartate substitutions were employed to mimic phosphorylation. Our findings suggest that mimicking phosphorylation at S15, S18 and T58 of TGBp1 might be linked to silencing suppressor activities. The phosphorylated form at these sites exhibits a loss of silencing suppressor activity, leading to reduced viral accumulation in the inoculated leaves. Furthermore, mimicking phosphorylation at residues S15 and S18 could diminish viral accumulation at the single-cell level, while doing so at residue T58 could influence virus movement. However, mimicking phosphorylation at residue S247 does not appear to be relevant to both functions of TGBp1. Overall, our study provides insights into the functional significance of specific phosphorylation sites in BaMV TGBp1, illuminating the regulatory mechanisms involved in virus movement and silencing suppression.
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Affiliation(s)
- Wan-Chen Wu
- Department of Biomedical Sciences and Engineering, Tzu Chi University, Hualien, 970, Taiwan, ROC
| | - I-Hsuan Chen
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan, ROC
- Advanced Plant and Food Crop Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan, ROC
| | - Pei-Yu Hou
- Department of Biomedical Sciences and Engineering, Tzu Chi University, Hualien, 970, Taiwan, ROC
| | - Lan-Hui Wang
- Department of Biomedical Sciences and Engineering, Tzu Chi University, Hualien, 970, Taiwan, ROC
| | - Ching-Hsiu Tsai
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan, ROC
- Advanced Plant and Food Crop Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan, ROC
| | - Chi-Ping Cheng
- Department of Biomedical Sciences and Engineering, Tzu Chi University, Hualien, 970, Taiwan, ROC
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Lu YF, Wu CY, Lo WC, Chiu YL, Shueng PW, Hsieh CH, Hsu CX, Kuo DY, Hou PY, Liao LJ. Postchemoradiotherapy systemic inflammation response index predicts treatment response and overall survival for patients with locally advanced nasopharyngeal cancer. J Formos Med Assoc 2023; 122:1141-1149. [PMID: 37202235 DOI: 10.1016/j.jfma.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/15/2023] [Accepted: 05/03/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND/PURPOSE To explore the clinical utility of the systemic inflammation response index (SIRI) in the prediction of patients with poor treatment response to concurrent chemoradiotherapy (CCRT) in locally advanced nasopharyngeal cancer (NPC). METHODS A total of 167 stage III-IVB (AJCC 7th edition) nasopharyngeal cancer patients who received CCRT were retrospectively collected. The SIRI was calculated using the following formula: SIRI = neutrophil count × monocyte count/lymphocyte count (109/L). The optimal cutoff values of the SIRI for noncomplete response were determined by receiver operating characteristic curve analysis. Logistic regression analyses were performed to identify factors predictive of treatment response. We used Cox proportional hazards models to identify predictors of survival. RESULTS Multivariate logistic regression showed that only the posttreatment SIRI was independently associated with treatment response in locally advanced NPC. A posttreatment SIRI≥1.15 was a risk factor for developing an incomplete response after CCRT (odds ratio 3.10, 95% confidence interval (CI): 1.22-9.08, p = 0.025). A posttreatment SIRI≥1.15 was also an independent negative predictor of progression-free survival (hazard ratio 2.38, 95% CI: 1.35-4.20, p = 0.003) and overall survival (hazard ratio 2.13, 95% CI: 1.15-3.96, p = 0.017). CONCLUSION The posttreatment SIRI could be used to predict the treatment response and prognosis of locally advanced NPC.
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Affiliation(s)
- Yueh-Feng Lu
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chia-Yun Wu
- Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Division of Oncology and Hematology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Wu-Chia Lo
- Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Otolaryngology Head and Neck Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Graduate Institute of Medicine, Yuan Ze University, Taoyuan, Taiwan
| | - Yen-Ling Chiu
- Graduate Institute of Medicine, Yuan Ze University, Taoyuan, Taiwan; Division of Nephrology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Pei-Wei Shueng
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan; School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chen-Hsi Hsieh
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan; School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chen-Xiong Hsu
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Deng-Yu Kuo
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Pei-Yu Hou
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Li-Jen Liao
- Head and Neck Cancer Surveillance & Research Group, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Otolaryngology Head and Neck Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Electrical Engineering, Yuan Ze University, Taoyuan, Taiwan.
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Hou PY, Hsieh CH, Hsu CX, Kuo DY, Lu YF, Shueng PW. Impact of Varying Chest Wall Target Volume Delineation on Postmastectomy Radiation Therapy Outcomes in Breast Cancer Patients with Implant-Based Reconstruction. J Clin Med 2023; 12:6882. [PMID: 37959348 PMCID: PMC10650648 DOI: 10.3390/jcm12216882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND The target volume for post-mastectomy radiation therapy (PMRT) in breast cancer patients with reconstruction has been a subject of debate. Traditionally, the RT chest wall (CW) volume encompasses the entire implant. For patients with retropectoral implants, the deep lymphatic plexus dorsal part of the implant is no longer considered high risk and can be omitted. This study aimed to assess the radiation dose distribution and treatment outcomes associated with different CW delineation according to ESTRO ACROP guideline for patients who have undergone implant-based reconstruction. METHODS We conducted a retrospective review of breast cancer patients who underwent a mastectomy followed by two-stage implant-based breast reconstruction and adjuvant radiation therapy (RT) between 2007 and 2022. The expanders/implants were positioned retropectorally. The chest wall target volumes were categorized into two groups: the prepectoral group, which excluded the deep lymphatic plexus, and the whole expander group. RESULTS The study included 26 patients, with 15 in the prepectoral group and 11 in the whole expander group. No significant differences were observed in normal organ exposure between the two groups. There was a trend toward a lower ipsilateral lung mean dose in the prepectoral group (10.2 vs. 11.1 Gy, p = 0.06). Both groups exhibited limited instances of reconstruction failure and local recurrence. CONCLUSIONS For patients undergoing two-stage expander/implant retropectoral breast reconstruction and PMRT, our data provided comparable outcomes and normal organ exposure for those omitting the deep lymphatic plexus.
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Affiliation(s)
- Pei-Yu Hou
- Department of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei 220216, Taiwan; (P.-Y.H.); (C.-H.H.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.)
- School of Nursing, Yuan Ze University, Taoyuan 320315, Taiwan
| | - Chen-Hsi Hsieh
- Department of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei 220216, Taiwan; (P.-Y.H.); (C.-H.H.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.)
- School of Nursing, Yuan Ze University, Taoyuan 320315, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Chen-Xiong Hsu
- Department of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei 220216, Taiwan; (P.-Y.H.); (C.-H.H.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.)
| | - Deng-Yu Kuo
- Department of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei 220216, Taiwan; (P.-Y.H.); (C.-H.H.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.)
| | - Yueh-Feng Lu
- Department of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei 220216, Taiwan; (P.-Y.H.); (C.-H.H.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.)
| | - Pei-Wei Shueng
- Department of Radiation Oncology, Far Eastern Memorial Hospital, New Taipei 220216, Taiwan; (P.-Y.H.); (C.-H.H.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.)
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
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Sun YY, Zhang Q, Fan L, Han DD, Li L, Yan L, Hou PY. Engineering the interface of organic/inorganic composite solid-state electrolyte by amino effect for all-solid-state lithium batteries. J Colloid Interface Sci 2022; 628:877-885. [PMID: 36029601 DOI: 10.1016/j.jcis.2022.08.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/15/2022]
Abstract
Composite solid-state electrolyte (CSSE) with integrated strengths avoids the weaknesses of organic and inorganic electrolytes, and thus become a better choice for all-solid-state lithium battery (ASSLB). However, the poor dispersion of inorganic fillers and the organic/inorganic nature difference leads to their interface incompatibility, which greatly destroys the performance of CSSE and ASSLB. Herein, silane coupling agent (SCA) aminopropyl triethoxysilane (ATS) is introduced to tailor the organic/inorganic interfaces in CSSE by the common chemical bridging effect of SCA and the special amino effect (hydrogen bond and lone pair electron effects). It is found that the hydrogen bond interaction between -NH2 and polyethylene oxide (PEO) enhances their interface interaction. And the lone pair electrons on nitrogen atom allow it to react with solvent acetonitrile and promote the uniform dispersion of ceramic fillers. Moreover, the lone pair electrons can complex with Li+, which promotes the dissociation of Li salts, uniforms Li+ diffusion and inhibits the Li dendrite. Thanks to the above merits, the interface compatibility and stability of organic/inorganic CSSE are much enhanced by innovatively introducing ATS, showing high ionic conductivity and superior mechanical/thermal stability. The ASSLB with this modified CSSE exhibits excellent electrochemical performance with a reversible capacity of 140.9 mAh g-1 and a capacity retention of 94.4% after 280 cycles. These achievements offer a new insight into improving the stability of organic/inorganic CSSE interface and promoting their applicability into ASSLB.
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Affiliation(s)
- Yan-Yun Sun
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Changzhou, Jiangsu Province 213001, China.
| | - Qi Zhang
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Changzhou, Jiangsu Province 213001, China
| | - Lei Fan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.
| | - Dian-Dian Han
- Center for Advanced Materials Research, Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China.
| | - Li Li
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Changzhou, Jiangsu Province 213001, China
| | - Lei Yan
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Changzhou, Jiangsu Province 213001, China
| | - Pei-Yu Hou
- School of Physics and Technology, University of Jinan, Jinan, Shandong Province 250022, China.
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Wei LC, Su YM, Xu TF, Zheng ZY, Zhang K, Luo CZ, Zheng Y, Wei XM, Ye YH, Lan YJ, Wang YF, Hou PY. [Endovascular repair of ruptured abdominal aortic aneurysms assisted by double balloon occlusion technique combined with intra-aneurysm fibrin binder injection technique]. Zhonghua Wai Ke Za Zhi 2021; 59:987-993. [PMID: 34839613 DOI: 10.3760/cma.j.cn112139-20210329-00146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the long-term efficacy and safety of alternating double balloon occlusion combined with intra-aneurysm injection of human fibrin binder in the endovascular repair of ruptured abdominal aortic aneurysm (rAAA). Methods: The clinical data of 28 patients with rAAA admitted to Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University from January 2015 to December 2019 were retrospectively analyzed. There were 23 males and 5 females, aged (62±5) years (range: 46 to 88 years).The maximum diameter of the tumors was (65.2±10.5) mm (range: 47.3 to 100.5 mm), all of which were subrenal rAAA. The intraoperative EVAR for abdominal aortic aneurysm was successfully performed under the emergency green channel procedure, and this surgery was assisted used the double balloon occlusion technique in aorta of inferior renal and superior renalcombined with intraoperative human fibrin binder injection technique. Observation indexes included: patients with preoperative preparation, operation time, hospitalization days, surgical treatment success rate and the incidence of postoperative complications, and aortic stent form during the follow-up period, the incidence of leakage, branch stents patency rate and infection rates. Results: The preoperative preparation time of 28 patients was (45.5±8.5) minutes (range:20 to 100 minutes). The operation time was (100.0±15.5) minutes (range:85 to 210 minutes), the ICU stay time was (7±2) days(range:1 to 17 days). The length of hospitalization was (13.5±2.5) days(range:5 to 43 days). The success rate of surgical treatment was 92.9% (26/28). Two patients died, 1 case died of postoperative multifocal lacunar cerebral infarction and massive gastrointestinal hemorrhage, and another elderly patient (84 years old) died of massive abdominal fluid due to preoperative abdominal aortic aneurysm rupture, postoperative complicated with significant abdominal compartment syndrome, and secondary multiple organ failure. Balloon occlusion of the upper renal aorta took (13±2)minutes (range:12 to 30 minutes). The intraoperative injection of fibrin adhesive was (14±2) ml(range:6 to 28 ml) in 22 cases. The incidence of major postoperative complications was 57.1% (16/28). Among the 26 patients who survived the surgery, 69.2% (18/26) completed the 3-year follow-up, and the follow-up time was (30±3) months(range:13 to 36 months). During the follow-up, the aortic stent was in good shape without obvious displacement. The incidence of leakage within 6 months after the operation was 10.7% (3/28), and there was no internal leakage in the patients who were followed up for 36 months after the operation. The patency rate of renal artery and iliac artery branch stents was 16/18. The incidence of stent infection was 7.7% (2/26), 1 case occurred at 1 month and another case at 6 months, respectively. All patients recovered after prolonged intensive anti-infection therapy. Conclusions: Under the standard emergency treatment process, the double balloon alternating occlusion technique combined with the intra-aneurysm injection of human fibrin adhesive technique can assist the successful completion of the endovascular repair of rAAA, effectively improve the success rate of treatment for patients, and reduce the incidence of postoperative leakage and serious complications. The mid-term and long-term results of EVAR for rAAA are good, safe and reliable.
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Affiliation(s)
- L C Wei
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - Y M Su
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - T F Xu
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - Z Y Zheng
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - K Zhang
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - C Z Luo
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - Y Zheng
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - X M Wei
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - Y H Ye
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - Y J Lan
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - Y F Wang
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
| | - P Y Hou
- Department of Vascular Surgery, the Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
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Hou PY, Hsieh CH, Wu LJ, Hsu CX, Kuo DY, Lu YF, Tien HJ, Hsiao HW, Shueng PW, Hsu SM. Modern Rotational Radiation Techniques with Volumetric Modulated Arc Therapy or Helical Tomotherapy for Optimal Sparing of the Lung and Heart in Left-Breast Cancer Radiotherapy Plus Regional Nodal Irradiation: A Comparative Dosimetric Analysis. Cancers (Basel) 2021; 13:cancers13205043. [PMID: 34680189 PMCID: PMC8534109 DOI: 10.3390/cancers13205043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/02/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary For advanced left-breast cancer patients, adjuvant radiotherapy (RT) with regional nodal irradiation (RNI) has been indicated to reduce cancer recurrence and mortality. Modern arc RT techniques, volumetric-modulated arc therapy (VMAT), or helical tomotherapy (HT), can minimize normal organ exposure without compromising disease control. The aim of this study is to identify which arc technique is optimal for patients receiving left-breast RT with RNI, and to explore distinct RNI volumes with or without IMN. A total of 108 eligible patients were enrolled (70 VMAT, 38 HT). VMAT reduced the mean dose and low-dose exposure to the heart, ipsilateral lung, whole lung, contralateral breast, and esophagus compared with HT. The advantage of VMAT for normal organ sparing was distinct when performing RNI with IMN irradiation. To limit normal organ exposure and reduce potential toxicities, VMAT is the optimal technique for patients with left-breast cancer who are undergoing RT with RNI. Abstract Background: For advanced breast cancer with lymph node involvement, adjuvant radiotherapy (RT) with regional nodal irradiation (RNI) has been indicated to reduce cancer recurrence and mortality. However, an extensive RT volume is associated with normal organ exposure, which increases the toxicity and affects patient outcomes. Modern arc RT techniques can improve normal organ sparing compared with conventional techniques. The aim of this study was to explore the optimal technique for left-breast RT with RNI. Methods: We retrospectively reviewed patients receiving RT with RNI for left-breast cancer. We used modern arc RT techniques with either volumetric-modulated arc therapy (VMAT) or helical tomotherapy (HT) with a novel block technique, and compared differences in dosimetry parameters between the two groups. Subgroup analysis of RNI with or without internal mammary node (IMN) volume was also performed. Results: A total of 108 eligible patients were enrolled between 2017 and 2020, of whom 70 received VMAT and 38 received HT. The median RT dose was 55 Gy. No significant differences were found regarding the surgery, RT dose, number of fractions, target volume, and RNI volume between the VMAT and HT groups. VMAT reduced the heart mean dose more than HT (3.82 vs. 5.13 Gy, p < 0.001), as well as the cardiac parameters of V5–V20, whole-lung mean dose, lung parameters of V5–V20, and contralateral-breast and esophagus mean dose. In the subgroup analysis of RNI with IMNs, the advantage of VMAT persisted in protecting the heart, lung, contralateral breast, and esophagus. HT was beneficial for lowering the thyroid mean dose. For RNI without IMN, VMAT improved the low-dose exposure of the heart and lung, but HT was similar to VMAT in terms of heart, whole-lung, and contralateral-breast mean dose. Conclusions: For patients with left-breast cancer receiving adjuvant RT with RNI, VMAT reduced the exposure dose to the heart, lung, contralateral breast, and esophagus compared with HT. VMAT was superior to HT in terms of normal organ sparing in the patients who underwent RNI with IMN irradiation. Considering the reduction in normal organ exposure and potential toxicity, VMAT is the optimal technique for patients receiving RNI when deep inspiration breath-hold is not available.
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Affiliation(s)
- Pei-Yu Hou
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
| | - Chen-Hsi Hsieh
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
| | - Le-Jung Wu
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
| | - Chen-Xiong Hsu
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
| | - Deng-Yu Kuo
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
| | - Yueh-Feng Lu
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
| | - Hui-Ju Tien
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
| | - Hsiu-Wen Hsiao
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
| | - Pei-Wei Shueng
- Department of Radiation Oncology, Far Eastern Memorial Hospital, Taipei 220, Taiwan; (P.-Y.H.); (C.-H.H.); (L.-J.W.); (C.-X.H.); (D.-Y.K.); (Y.-F.L.); (H.-J.T.); (H.-W.H.)
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
- Correspondence: (P.-W.S.); (S.-M.H.); Tel.: +886-2-8966-7000 (ext. 1031) (P.-W.S.); +886-2-2826-5858 (S.-M.H.); Fax: +886-2-2820-1095 (S.-M.H.)
| | - Shih-Ming Hsu
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 30010, Taiwan
- Correspondence: (P.-W.S.); (S.-M.H.); Tel.: +886-2-8966-7000 (ext. 1031) (P.-W.S.); +886-2-2826-5858 (S.-M.H.); Fax: +886-2-2820-1095 (S.-M.H.)
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Huang YP, Hou PY, Chen IH, Hsu YH, Tsai CH, Cheng CP. Dissecting the role of a plant-specific Rab5 small GTPase NbRabF1 in Bamboo mosaic virus infection. J Exp Bot 2020; 71:6932-6944. [PMID: 32926136 DOI: 10.1093/jxb/eraa422] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
NbRabF1, a small GTPase from Nicotiana benthamiana and a homolog of Arabidopsis thaliana Ara6, plays a key role in regulating Bamboo mosaic virus (BaMV) movement by vesicle transport between endosomal membranes. Reducing the expression of NbRabF1 in N. benthamiana by virus-induced gene silencing decreased the accumulation of BaMV, and with smaller infection foci on inoculated leaves, but had no effect in protoplasts. Furthermore, transient expression of NbRabF1 increased the accumulation of BaMV in inoculated leaves. Thus, NbRabF1 may be involved in the cell-to-cell movement of BaMV. The potential acyl modification sites at the second and third amino acid positions of NbRabF1 were crucial for membrane targeting and BaMV accumulation. The localization of mutant forms of NbRabF1 with the GDP-bound (donor site) and GTP-bound (acceptor site) suggested that NbRabF1 might regulate vesicle trafficking between the Golgi apparatus and plasma membrane. Furthermore, GTPase activity could also be involved in BaMV cell-to-cell movement. Overall, in this study, we identified a small GTPase, NbRabF1, from N. benthamiana that interacts with its activation protein NbRabGAP1 and regulates vesicle transport from the Golgi apparatus to the plasma membrane. We suggest that the BaMV movement complex might move from cell to cell through this vesicle trafficking route.
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Affiliation(s)
- Ying-Ping Huang
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Pei-Yu Hou
- Department of Life Sciences, Tzu Chi University, Hualien, Taiwan
| | - I-Hsuan Chen
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Yau-Huei Hsu
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Ching-Hsiu Tsai
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
- Research Center for Sustainable Energy and Nanotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Chi-Ping Cheng
- Department of Life Sciences, Tzu Chi University, Hualien, Taiwan
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Sun YY, Hou PY, Zhang LC. Mitigating the Microcracks of High-Ni Oxides by In Situ Formation of Binder between Anisotropic Grains for Lithium-Ion Batteries. ACS Appl Mater Interfaces 2020; 12:13923-13930. [PMID: 32150372 DOI: 10.1021/acsami.9b23470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Increasing attention has been paid to layered high-Ni oxides with high capacity as a promising cathode for high-energy lithium-ion batteries. However, the undesirable microcracks in secondary particles usually occur due to the volume changes of anisotropic primary grains during cycles, which lead to the decay of electrochemical performance. Here, for the first time, a functional electrolyte with di-sec-butoxyaluminoxytriethoxysilane additive integrating the functions of silane and aluminate is proposed to in situ form the binder-like filler between anisotropic primary grains for mitigating the microcracks of high-Ni oxides. It is demonstrated that Li-containing aluminosilicate as a glue layer between the gaps of grains and as a coating layer on the surface of the grains is generated, and these features further enhance the interfacial bonding and surface stability of anisotropic primary grains. Consequently, the microcracks along with side reactions and phase transitions of high-Ni oxides are mitigated. As anticipated, the electrochemical performance and thermal stability of high-Ni oxides are improved, and there is also a capacity retention of 75.4% even after 300 cycles and large reversible capacity of ∼160 mA h g-1 at 5 C. The functional electrolyte offers a simple, efficient, and scalable method to promote the electrochemical properties and applicability of high-Ni oxide cathodes in high-energy lithium-ion batteries.
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Affiliation(s)
- Yan-Yun Sun
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Jiangsu Province, 213001, China
| | - Pei-Yu Hou
- School of Physics and Technology, University of Jinan, Jinan, Shandong Province 250022, China
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Lan-Chun Zhang
- School of Automobile and Traffic Engineering, Jiangsu University of Technology, Jiangsu Province, 213001, China
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Chou HL, Shueng PW, Liao LJ, Hsu CX, Kuo DY, Lo WC, Hou PY, Wang LY, Chou SF, Hsieh CH. Prophylactic NS-21 maintains the skin moisture but does not reduce the severity of radiation dermatitis in patients with head and neck cancer: a randomized control trial. Radiat Oncol 2019; 14:90. [PMID: 31146741 PMCID: PMC6543645 DOI: 10.1186/s13014-019-1302-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 05/22/2019] [Indexed: 12/22/2022] Open
Abstract
Background To evaluate the practicality of NS-21 cream with regard to its skin-related toxicity in patients with head and neck cancer (HNC) who are undergoing concurrent chemoradiation therapy (CCRT) or radiotherapy (RT). Methods Between July 2015 and November 2017, 30 HNC patients who underwent RT or CCRT were randomly allocated to receive either NS-21 or control treatment on their irradiated skin three times per day, starting at the initiation of RT or CCRT and ending 2 weeks after the completion of RT or until the appearance of grade 3 acute radiation dermatitis (ARD). Dermatitis was recorded weekly according to the Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Skin humidity was monitored by a digital moisture meter. The generalized estimating equation (GEE) and logit link function method were used for statistical analysis. Results No serious adverse events were observed in either group. Itching dermatitis occurred on the right lower neck in one patient of the NS-21 group during the 3rd week of CCRT, but the severity was mild. The median skin moisture value at the time of the final treatment was significantly different between the study and control groups (30.6 vs. 27.3, p = 0.013). Additionally, there was an inverse relationship between skin moisture and ARD grade (B = -0.04, p = 0.005). The incidence of ARD at the time of the last treatment was not significantly different between the study and control groups (6.7% vs 26.7%, p = 0.165). The risk of grade 3 ARD for skin that had received an irradiation dose of 47–70 Gy was higher than that of skin that had received an irradiation dose ≤46 Gy (OR = 31.06, 95% CI =5.95–162.21, p < 0.001). Nevertheless, the risk of ARD was not significantly different between the groups (OR = 0.38, 95% CI = 0.08–1.74, p = 0.212). Conclusions NS-21 was well tolerated and effective for the maintenance of skin moisture; however, there was no statistically significant reduction in the risk of ARD in HNC patients undergoing RT or CCRT when compared with HNC patients in the control group. Trial registration The study was approved by the Institutional Review Board of Far Eastern Memorial Hospital (FEMH-IRB, 104048-F), Registered 1st June 2015,
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Affiliation(s)
- Hsiu-Ling Chou
- Department of Nursing, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,School of Nursing, National Yang-Ming University, Taipei, Taiwan.,Department of Nursing, Oriental Institute of Technology, New Taipei City, Taiwan
| | - Pei-Wei Shueng
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, 21 Sec 2, Nanya S Road, Banciao District, New Taipei City, 220, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Li-Jen Liao
- Department of Otolaryngology Head and Neck Surgery, Far Eastern Memorial Hospital, Taipei, Taiwan.,Department of Electrical Engineering, Yuan Ze University, Taoyuan, Taiwan
| | - Chen-Xiong Hsu
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, 21 Sec 2, Nanya S Road, Banciao District, New Taipei City, 220, Taiwan.,Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Deng-Yu Kuo
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, 21 Sec 2, Nanya S Road, Banciao District, New Taipei City, 220, Taiwan
| | - Wu-Chia Lo
- Department of Otolaryngology Head and Neck Surgery, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Pei-Yu Hou
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, 21 Sec 2, Nanya S Road, Banciao District, New Taipei City, 220, Taiwan
| | - Li-Ying Wang
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan.,Physical Therapy Center, National Taiwan University Hospital, Taipei, Taiwan
| | - San-Fang Chou
- Department of Medical Research, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chen-Hsi Hsieh
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, 21 Sec 2, Nanya S Road, Banciao District, New Taipei City, 220, Taiwan. .,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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10
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Wei LC, Gong GY, Chen JH, Hou PY, Li QY, Zheng ZY, Su YM, Zheng Y, Luo CZ, Zhang K, Xu TF, Ye YH, Lan YJ, Wei XM. [Application of lower abdominal aorta balloon occlusion technique by ultrasound guiding during caesarean section in patients with pernicious placenta previa]. Zhonghua Yi Xue Za Zhi 2018; 98:930-934. [PMID: 29665668 DOI: 10.3760/cma.j.issn.0376-2491.2018.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To discuss the feasibility, effect and safety of lower abdominal aorta balloon occlusion technique by ultrasound guiding during caesarean section in patients with pernicious placenta previa. Methods: The clinical data of 40 patients with pernicious placenta previa complicated with placenta accreta from January 2015 to August 2017 in Liuzhou workers hospital were analyzed retrospectively. The study group included 20 cases, which were operated in the way of cesarean section combined lower abdominal aorta balloon occlusion technique by ultrasound guiding, while the control group also included 20 cases, which were operated in the way of the conventional cesarean section without balloon occlusion technique. The bleeding amount, blood transfusion volume, operative total time, hysterectomy and complications of the two groups were compared. Results: The bleeding amount and blood transfusion volume in study group were(850±100)ml and (400±50)ml, which were lower than that of the control group[(2 500±230)ml and (1 500±100)ml], the difference was statistically significant(t=35.624, 16.523, all P<0.05). In addition, the hysterectomy rate in study group was 5%, which was lower than that in the control group(30%), the difference was statistically significant(χ2=8.672, P<0.05). And the total time of operation was (2.0±0.5)h in the study group, which was shorter than that in the control group[(3.5±0.4)h]. The difference was statistically significant(t=11.362, P<0.05). No postoperative complications took place in the study group.The blood pressure, heart rate and blood oxygen fluctuated significantly, and the postoperative renal function was significantly reduced in the control group. Conclusions: The lower abdominal aorta balloon occlusion technique by ultrasound guiding during a caesarean section in patients with pernicious placenta previa can effectively control the bleeding during operation, and preserve reproductive function to the utmost degree.Therefore, the technique is safe, feasible, convenient and cheaper, and worthy of being widely applied in clinic.
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Affiliation(s)
- L C Wei
- Department of Vascular Interventional Surgery, Liuzhou Workers Hospital, Liuzhou 545005, China
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Lu YF, Chung CS, Liu CY, Shueng PW, Wu LJ, Hsu CX, Kuo DY, Hou PY, Chou HL, Leong KI, How CH, Chou SF, Wang LY, Hsieh CH. Esophageal Metal Stents with Concurrent Chemoradiation Therapy for Locally Advanced Esophageal Cancer: Safe or Not? Oncologist 2018; 23:1426-1435. [PMID: 29728468 DOI: 10.1634/theoncologist.2017-0646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/23/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The purpose of this study was to review the risks and benefits of concurrent chemoradiation therapy (CCRT) with esophageal self-expandable metal stents (SEMS) for the treatment of locally advanced esophageal cancer. MATERIALS AND METHODS Between January 2014 and December 2016, the data from 46 locally advanced esophageal cancer patients who received CCRT at our institution were retrospectively reviewed. Eight patients who received CCRT concomitant with SEMS placement (SEMS plus CCRT group) and thirty-eight patients who received CCRT without SEMS placement (CCRT group) were identified. The risk of developing esophageal fistula and the overall survival of the two groups were analyzed. RESULTS The rate of esophageal fistula formation during or after CCRT was 87.5% in the SEMS plus CCRT group and 2.6% in the CCRT group. The median doses of radiotherapy in the SEMS plus CCRT group and the CCRT group were 47.5 Gy and 50 Gy, respectively. SEMS combined with CCRT was associated with a greater risk of esophageal fistula formation than CCRT alone (hazard ratio [HR], 72.30; 95% confidence interval [CI], 8.62-606.12; p < .001). The median overall survival times in the SEMS plus CCRT and CCRT groups were 6 months and 16 months, respectively. Overall survival was significantly worse in the SEMS plus CCRT group than in the CCRT group (HR, 5.72; 95% CI, 2.15-15.21; p < .001). CONCLUSION CCRT concomitant with SEMS for locally advanced esophageal cancer results in earlier life-threatening morbidity and a higher mortality rate than treatment with CCRT alone. Further prospective and randomized studies are warranted to confirm these observations. IMPLICATIONS FOR PRACTICE Patients treated with SEMS placement followed by CCRT had higher risk of esophageal fistula formation and inferior overall survival rate compared with patients treated with CCRT alone. SEMS placement should be performed cautiously in patients who are scheduled to receive CCRT with curative intent.
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Affiliation(s)
- Yueh-Feng Lu
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chen-Shuan Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Chao-Yu Liu
- Division of Thoracic Surgery, Department of Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Pei-Wei Shueng
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Le-Jung Wu
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chen-Xiong Hsu
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Deng-Yu Kuo
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Pei-Yu Hou
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Hsiu-Ling Chou
- Department of Nursing, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- School of Nursing, National Yang-Ming University, Taipei, Taiwan
- Department of Nursing, Oriental Institute of Technology, New Taipei City, Taiwan
| | - Ka-I Leong
- Division of Thoracic Surgery, Department of Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Cheng-Hung How
- Division of Thoracic Surgery, Department of Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - San-Fang Chou
- Department of Medical Research, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Li-Ying Wang
- Physical Therapy Center, National Taiwan University Hospital, Taipei, Taiwan
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chen-Hsi Hsieh
- Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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Hou PY, Teng CJ, Chung CS, Liu CY, Huang CC, Chang MH, Shueng PW, Hsieh CH. Aortic pseudoaneurysm formation following concurrent chemoradiotherapy and metallic stent insertion in a patient with esophageal cancer. Medicine (Baltimore) 2015; 94:e862. [PMID: 25997064 PMCID: PMC4602863 DOI: 10.1097/md.0000000000000862] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Aortic pseudoaneurysm formation subsequent to concurrent chemoradiotherapy (CCRT) for esophageal cancer patient with esophageal metallic stent insertion is a rare condition.A 52-year-old man with esophageal cancer, cT4N1M0, stage IIIC, was treated with concurrent weekly cisplatin (30 mg/m) and 5-Fluorouracil (500 mg/m) as well as radiotherapy (50.4 Gy in 28 fractions) for 6 weeks. An esophageal metallic stent was inserted for dysphagia 1 week after initiation of CCRT. During the treatment regimen, the platelet count dropped to less than 200 × 10 /μL. One month after the completion of CCRT, chest CT revealed the presence of an aortic pseudoaneurysm as well as aortoesophageal fistulas. A thoracic aortic endografting was performed and the patient responded well to surgery. However, the patient died 2 months later due to a nosocomial infection.Multimodality treatment for esophageal cancer comprising cisplatin-based CCRT and esophageal metallic stent placement near a great vessel may increase the risk of pseudoaneurysm formation.
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Affiliation(s)
- Pei-Yu Hou
- From the Division of Radiation Oncology, Department of Radiology, Far Eastern Memorial Hospital, New Taipei City (P-YH, P-WS, C-HH); Department of Medicine (C-JT, C-HH); Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei (C-HH); Division of Oncology and Hematology, Department of Medicine, Far Eastern Memorial Hospital, New Taipei City (C-JT); Institute of Public Health, National Yang-Ming University, Taipei (C-JT); Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City (C-SC); College of Medicine, Fu Jen Catholic University, New Taipei City (C-SC); Department of Thoracic surgery, Far Eastern Memorial Hospital, New Taipei City (C-YL); Department of Medical Imaging, Far Eastern Memorial Hospital, New Taipei City (C-CH); Department of Anatomical Pathology, Far Eastern Memorial Hospital, New Taipei City (M-HC); Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (P-WS)
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