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Pu X, Wang X, Ran L, Xie T, Li Z, Yang Z, Lin R, Zeng J. Comparison of predictive performance for cage subsidence between CT-based Hounsfield units and MRI-based vertebral bone quality score following oblique lumbar interbody fusion. Eur Radiol 2023; 33:8637-8644. [PMID: 37462819 DOI: 10.1007/s00330-023-09929-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/15/2023] [Accepted: 03/25/2023] [Indexed: 11/26/2023]
Abstract
OBJECTIVE To compare the predictive performance between CT-based Hounsfield units (HU) and MRI-based vertebral bone quality (VBQ) for cage subsidence (CS) following oblique lumbar interbody fusion combined with anterolateral single-rod screw fixation (OLIF-AF). METHODS A retrospective study was performed on consecutive patients who underwent OLIF-AF at our institution from 2018 to 2020. CS was determined by CT according to the change in the midpoint intervertebral space height. The VBQ score and HU value were measured from preoperative MRI and CT, respectively. Then, we evaluated the predictive performance of those two parameters by comparing the receiver operating characteristic (ROC) curves. RESULTS The mean global and segmental VBQ scores were significantly higher in the CS group, and the mean global and segmental HU values were significantly lower in the CS group. The area under the curve (AUC) of CS prediction was higher in the operative segments' VBQ score and HU value than the measurement in the global lumbar spine. Finally, the combined segmental VBQ score and segmental HU value demonstrated the highest AUC. CONCLUSION Both MRI-based VBQ score and CT-based HU value can achieve accurate CS prediction. Moreover, the combination of those two measurements indicated the best predictive performance. CLINICAL RELEVANCE STATEMENT Both MRI-based VBQ score and CT-based HU value can be used for cage subsidence prediction, in order to take preventive measures early enough. KEY POINTS • Osteoporosis is a risk factor for CS, both MRI-based VBQ score and CT-based HU value are important predictors during vertebral bone quality evaluation. • The VBQ score and HU value measured in the operative segments are better predictors of CS than the measurement in the global lumbar spine. • Combined segmental VBQ score and segmental HU value achieved the best predictive performance for CS.
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Affiliation(s)
- Xingxiao Pu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, People's Republic of China
| | - Xiandi Wang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Liyu Ran
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Tianhang Xie
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Zhuhai Li
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
- Department of Spine Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 TaoYuan Rd, Nanning, 530021, Guangxi, China
| | - Zhiqiang Yang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Run Lin
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Jiancheng Zeng
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Wuhou Guoxue Road, Chengdu, 610041, People's Republic of China.
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Pu X, Wang D, Gu S. Advances in Hounsfield units value for predicting cage subsidence on spinal interbody fusion surgery. Eur Spine J 2023; 32:3149-3157. [PMID: 37306798 DOI: 10.1007/s00586-023-07805-2] [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] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 01/26/2023] [Accepted: 05/28/2023] [Indexed: 06/13/2023]
Abstract
PURPOSE A growing number of studies have demonstrated that Hounsfield units (HU) value can effectively assess bone quality and predict cage subsidence (CS) after spinal surgery. The purpose of this review is to provide an overview of the utility of the HU value for predicting CS after spinal surgery and to raise some of the unresolved questions in this field. METHODS We searched on PubMed, EMBASE, MEDLINE, and Cochrane Library for studies correlating HU value to CS. RESULTS Thirty-seven studies were included in this review. We found that HU value can predicted the risk of CS effectively after spinal surgery. Moreover, the HU value of the cancellous vertebral body and the cortical endplate were used for predicting CS, in comparison, the measurement method of HU value in the cancellous vertebral body was more standardized, but which region is more important to CS remains unknown. Different cutoff thresholds of HU value have been established in different surgical procedures for predicting CS. The HU value may be superior to dual-energy X-ray absorptiometry (DEXA) for CS prediction; however, the usage standard of HU value has not been well established. CONCLUSIONS The HU value shows great potential for predicting CS and constitutes an advantage over DEXA. However, general consensuses about how CS is defined and HU is measured, which part of HU value is more important, and the appropriate cutoff threshold of the HU value for osteoporosis and CS still require exploration.
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Affiliation(s)
- Xingxiao Pu
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China
| | - Daxing Wang
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China.
| | - Shao Gu
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China.
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Pu X, Wang D, Xiao W, Liu B. Letter to the Editor concerning "Endoscopic anterior to psoas lumbar interbody fusion: indications, techniques, and clinical outcomes" by Y. Liu et al. (Eur Spine J; [2023]: doi:10.1007/s00586-023-07700-w). Eur Spine J 2023; 32:3315-3316. [PMID: 37347279 DOI: 10.1007/s00586-023-07824-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 06/03/2023] [Accepted: 06/11/2023] [Indexed: 06/23/2023]
Affiliation(s)
- Xingxiao Pu
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China
| | - Daxing Wang
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China
| | - Weiping Xiao
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China
| | - Bailian Liu
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, 650051, Yunnan, People's Republic of China.
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Pu X, Li H. Letter to the editor regarding "Opportunistic Use of Lumbar Magnetic Resonance Imaging for Osteoporosis Screening". Osteoporos Int 2023:10.1007/s00198-023-06801-y. [PMID: 37341730 DOI: 10.1007/s00198-023-06801-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/15/2023] [Indexed: 06/22/2023]
Affiliation(s)
- Xingxiao Pu
- Department of Orthopedics, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, People's Republic of China
| | - Haifeng Li
- Department of Orthopedics, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, 650051, People's Republic of China.
- Department of Orthopedics, Yan'an Hospital Affiliated to Kunming Medical University, 245# Panlong, Renmingdonglu, Kunming, Yunnan, 650051, People's Republic of China.
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Pu X, Liu B. Letter to the Editor. Does the prone transpsoas approach affect LLIF outcomes? Neurosurg Focus 2023; 54:E10. [PMID: 37127029 DOI: 10.3171/2023.2.focus2341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
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Li Z, Wang X, Xie T, Pu X, Lin R, Wang L, Wang K, You X, Wu D, Huang S, Zeng J. Oblique lumbar interbody fusion combined with stress end plate augmentation and anterolateral screw fixation for degenerative lumbar spinal stenosis with osteoporosis: a matched-pair case-controlled study. Spine J 2023; 23:523-532. [PMID: 36539041 DOI: 10.1016/j.spinee.2022.12.007] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/18/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND CONTEXT Oblique lumbar interbody fusion (OLIF) has been proven to be effective in treating degenerative lumbar spinal stenosis (DLSS). Whether OLIF is suitable for treating patients with DLSS with osteoporosis (OP) is still controversial. Bone cement augmentation is widely used to enhance the internal fixation strength of osteoporotic spines. However, the effectiveness of OLIF combined with bone cement stress end plate augmentation (SEA) and anterolateral screw fixation (AF) for DLSS with OP have not confirmed yet. PURPOSE To evaluate the clinical, radiological, and functional outcomes of OLIF-AF versus OLIF-AF-SEA in the treatment of DLSS with OP. STUDY DESIGN Retrospective case-control study. PATIENT SAMPLE A total of 60 patients with OP managed for DLSS at L4-L5. OUTCOME MEASURES Visual analog scale (VAS) score of the lower back and leg, Oswestry Disability Index (ODI), disk height (DH), lumbar lordosis (LL), segmental lordosis (SL), cage subsidence and fusion rate. METHODS The study was performed as a retrospective matched-pair case‒controlled study. Patients with OP managed for DLSS at L4-L5 between October 2017 and June 2020 and completed at least 2 years of follow-up were included, which were 30 patients treated by OLIF-AF and 30 patients undergoing OLIF-AF-SEA. The demographics and radiographic data, fusion status and functional outcomes were therefore compared to evaluate the efficacy of the two approaches. RESULTS Pain and disability improved similarly in both groups at the 24-month follow-up. However, the SEA group had lower pain and functional disability at 3 months postoperatively (p<.05). The mean postoperative disc height decrease (△DH) was significantly lower in the SEA group than in the control group (1.17±0.81 mm vs 2.89±2.03 mm; p<.001). There was no significant difference in lumbar lordosis (LL) or segmental lordosis (SL) between the groups preoperatively and 1 day postoperatively. However, a statistically significant difference was observed in SL and LL between the groups at 24 months postoperatively (p<.05). CS was observed in 4 cases (13.33%) in the SEA group and 17 cases (56.67%) in the control group (p<.001). A nonsignificant difference was observed in the fusion rate between the SEA and control groups (p=.347) at 24 months postoperatively. CONCLUSIONS This study revealed that OLIF-AF-SEA was safe and effective in the treatment of DLSS with OP. Compared with OLIF-AF, OLIF-AF-SEA results in a minor postoperative disc height decrease, a lower rate of CS, better sagittal balance, and no adverse effect on interbody fusion.
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Affiliation(s)
- Zhuhai Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China; Department of Spine Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 TaoYuan Rd, Nanning 530021, Guangxi, China
| | - Xiandi Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Tianhang Xie
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Xingxiao Pu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Run Lin
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Lihang Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China; Department of Spine Surgery, Guizhou Provincial Orthopedics Hospital, No.206 Sixian Rd, Guiyang 550014, Guizhou, China
| | - Kai Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Xuanhe You
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Diwei Wu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China
| | - Shishu Huang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China.
| | - Jiancheng Zeng
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, No. 37 GuoXue Rd, Chengdu 610041, Sichuan, China.
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Pu X, Chen G, Gu S. Individualized anatomical lateral plate for oblique lumbar interbody fusion: concerns required to be addressed. Ann Transl Med 2023; 11:231. [PMID: 37007582 PMCID: PMC10061469 DOI: 10.21037/atm-22-5025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 02/08/2023] [Indexed: 03/09/2023]
Affiliation(s)
- Xingxiao Pu
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Guojun Chen
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Shao Gu
- Department of Orthopedic Spine Surgery, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
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Wu L, Wu Z, Xiao Z, Ma Z, Weng J, Chen Y, Cao Y, Cao P, Xiao M, Zhang H, Duan H, Wang Q, Li J, Xu Y, Pu X, Li K. EP08.02-158 Final Analyses of ALTER-L018: A Randomized Phase II Trial of Anlotinib Plus Docetaxel vs Docetaxel as 2nd-line Therapy for EGFR-negative NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wu L, Wang J, Chen B, Pu X, Li J, Liu L, Wang Q, Xu Y, Xu L, Xu F, Li K. EP08.02-161 An Exploratory Study on Biomarkers Related to Primary Resistance Of EGFR-TKIs Therapy in Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wu L, Pu X, Lin G, Xiao M, Lin J, Wang Q, Kong Y, Yan X, Xu F, Xu Y, Li J, Li K, Chen B, Wen X, Tan Y. EP08.01-094 A Phase II Study of Camrelizumab combined with Apatinib and Albumin Paclitaxel in Advanced Non-squamous NSCLC (CAPAP-lung). J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wu L, Chen B, Wang J, Pu X, Li J, Wang Q, Liu L, Xu Y, Xu L, Kong Y, Li K, Xu F. EP08.01-093 ICI in Combination With Chemotherapy or Anti-angiogenic Agents as Second-Line Orbeyondtreatment for Advanced Non-small Cell Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li J, Pu X, Zhang B, Zhang J, Mok T, Nakagawa K, Rosell R, Cheng Y, Zhou X, Migliorino M, Niho S, Lee K, Corral J, Pluzanski A, Li J, Linke R, Pan F, Tang Y, Tan W, Wu L. EP08.02-159 Post Hoc Analyses of Dacomitinib-Associated Skin Disorders and Efficacy in the ARCHER 1050 Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Zhao L, Xie T, Wang X, Yang Z, Pu X, Zeng J. Whether Anterolateral Single Rod Can Maintain the Surgical Outcomes Following Oblique Lumbar Interbody Fusion for Double-Segment Disc Disease. Orthop Surg 2022; 14:1126-1134. [PMID: 35478325 PMCID: PMC9163980 DOI: 10.1111/os.13290] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 02/05/2023] Open
Abstract
Objective To evaluate the outcomes of oblique lumbar interbody fusion (OLIF) combined with anterolateral single‐rod screw fixation (AF) in treating two‐segment lumbar degenerative disc disease (LDDD) and to determine whether AF can maintain the surgical results. Methods A retrospective analysis was performed on patients who underwent OLIF combined with AF (OLIF‐AF) for LDDD at the L3‐5 levels between October 2017 and May 2018. A total of 84 patients, including 44 males and 40 females, with a mean age of 62.8 ± 6.8 years, who completed the 12‐month follow‐up were eventually enrolled. Clinical outcomes, including the Oswestry Disability Index (ODI), visual analog scale (VAS) score for the low back and leg, and radiographic parameters, including the cross‐sectional area (CSA) of the spinal canal, disc height (DH), foraminal height (FH), degree of upper vertebral slippage (DUVS), segmental lumbar lordosis (SL), fusion rate, and lumbar lordosis (LL), were recorded before surgery and 1 and 12 months after surgery. Surgical‐related complications, including cage subsidence (CS), were also evaluated. The local radiographic parameters were compared between L3‐4 and L4‐5. The clinical results and all radiographic parameters were compared between patients with and without CS. Results Significant improvements were observed in radiographic parameters 1 day postoperatively (p < 0.05). Local radiological parameters in L4‐5 had a significant decrease at 12 months postoperatively (p < 0.05), while they were well‐maintained at L3‐4 throughout the follow‐up period (p > 0.05). CS was observed in 26 segments (15.5%). Endplate injury was observed in four segments (2.4%). There was no significant difference in the fusion rate between the segments with and without CS (p = 0.355). The clinical results improved significantly after surgery (p < 0.05), and no significant difference was observed between the groups with and without CS (p > 0.05). Conclusions Anterolateral fixation combined with OLIF provides sufficient stability to sustain most radiological improvements in treating double‐segment LDDD. Subsidence was the most common complication, which was prone to occur in L4‐5 compared to L3‐4, but did not impede the fusion process or diminish the surgical results.
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Affiliation(s)
- Long Zhao
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Tianhang Xie
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Xiandi Wang
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Zhiqiang Yang
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Xingxiao Pu
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Jiancheng Zeng
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China
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Zhao L, Xie T, Wang X, Yang Z, Pu X, Lu Y, Zeng J. Clinical and radiological evaluation of cage subsidence following oblique lumbar interbody fusion combined with anterolateral fixation. BMC Musculoskelet Disord 2022; 23:214. [PMID: 35248042 PMCID: PMC8898418 DOI: 10.1186/s12891-022-05165-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 02/22/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Cage subsidence (CS) was previously reported as one of the most common complications following oblique lumbar interbody fusion (OLIF). We aimed to assess the impacts of CS on surgical results following OLIF combined with anterolateral fixation, and determine its radiological characteristics as well as related risk factors.
Methods
Two hundred and forty-two patients who underwent OLIF at L4-5 and with a minimum 12 months follow-up were reviewed. Patients were divided into three groups according to the extent of disk height (DH) decrease during follow-up: no CS (DH decrease ≤ 2 mm), mild CS (2 mm < DH decrease ≤ 4 mm) and severe CS (DH decrease > 4 mm). The clinical and radiological results were compared between groups to evaluate radiological features, clinical effects and risk factors of CS.
Results
CS was identified in 79 (32.6%) patients, including 48 (19.8%) with mild CS and 31 (11.8%) with severe CS. CS was mainly identified within 1 month postoperatively, it did not progress after 3 months postoperatively, and more noted in the caudal endplate (44, 55.7%). In terms of clinical results, patients in the mild CS group were significantly worse than those in the no CS group, and patients in the severe CS group were significantly worse than those in the mild CS group. There was no significant difference in fusion rate between no CS (92.6%, 151/163) and mild CS (83.3%, 40/48) groups. However, significant lower fusion rate was observed in severe CS group (64.5%, 20/31) compared to no CS group. CS related risk factors included osteoporosis (OR = 5.976), DH overdistraction (OR = 1.175), flat disk space (OR = 3.309) and endplate injury (OR = 6.135).
Conclusion
CS following OLIF was an early postoperative complication. Higher magnitudes of CS were associated with worse clinical improvements and lower intervertebral fusion. Osteoporosis and endplate injury were significant risk factors for CS. Additionally, flat disk space and DH over-distraction were also correlated with an increased probability of CS.
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Pu X, Huang S, Wang X, Zeng J. Letter to the Editor. Spontaneous facet fusion. Neurosurg Focus 2022; 52:E15. [PMID: 35231890 DOI: 10.3171/2021.11.focus21701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wu L, Wu Z, Xiao Z, Ma Z, Weng J, Chen Y, Cao Y, Cao P, Xiao M, Zhang H, Duan H, Wang Q, Li J, Xu Y, Pu X, Li K. P48.01 Anlotinib Plus Docetaxel vs Docetaxel for 2nd-Line Treatment of EGFR negative NSCLC (ALTER-L018): A Randomized Phase II Trial. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhao L, Zeng J, Xie T, Pu X, Lu Y. [Advances in research on Cage subsidence following lumbar interbody fusion]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021; 35:1063-1067. [PMID: 34387439 DOI: 10.7507/1002-1892.202104036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To summarize the advances in research on Cage subsidence following lumbar interbody fusion, and provide reference for its prevention. Methods The definition, development, clinical significance, and related risk factors of Cage subsidence following lumbar interbody fusion were throughout reviewed by referring to relevant domestic and doreign literature in recent years. Results At present, there is no consensus on the definition of Cage subsidence, and mostly accepted as the disk height reduction greater than 2 mm. Cage subsidence mainly occurs in the early postoperative stage, which weakens the radiological surgical outcome, and may further damage the effectiveness or even lead to surgical failure. Cage subsidence is closely related to the Cage size and its placement location, intraoperative endplate preparation, morphological matching of disk space to Cage, bone mineral density, body mass index, and so on. Conclusion The appropriate size and shape of the Cage usage, the posterolateral Cage placed, the gentle endplate operation to prevent injury, the active perioperative anti-osteoporosis treatment, and the education of patients to control body weight may help to prevent Cage subsidence and ensure good surgical results.
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Affiliation(s)
- Long Zhao
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Jiancheng Zeng
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Tianhang Xie
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Xingxiao Pu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Yufei Lu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
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Wu L, Jiang M, Peng W, Pu X, Chen B, Li J. P76.48 A CT-Based Radiomic Feature Predicts EGFR Mutation and Response to Targeted Therapy in NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wu L, Peng W, Pu X, Jiang M, Wang J, Li J, Li K, Xu Y, Xu F, Chen B, Wang Q, Cao J, Chen Y. P76.63 Dacomitinib Induces a Drastic Response in Metastatic Brain Lesions of Patients with EGFR-mutant Non-small-cell Lung Cancer: A Brief Report. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wu L, Li K, Chen B, Peng W, Wang J, Jiang M, Wang Q, Pu X, Li J, Xu F, Xu Y. P48.15 A Case from a Single-Arm, Phase Two, Open Label Study Assessing Sindilimab Plus Metaformin in Chemotherapy Failed PD-L1 Positive Advanced SCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wu F, Hu C, Huang Y, Pu X, Liu C, Liu X, Ma F, Zhao L, Shu L, Pan Y, Zeng Y. FP01.02 The Efficacy of Postoperative Radiotherapy in IIIA-N2 Non-Squamous NSCLC with Different EGFR Mutation Status: A Retrospective Analysis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Huan H, Liu C, Yang Z, Bao JL, Liu C, Wang JT, Zhang L, Wang CH, Ci RSP, Tu QL, Ren T, Xu D, Zhang HJ, Li XG, Kang N, Li XP, Wu YH, Pu X, Tan YJ, Cao JJ, Luo SWQ, Luo SQP, Zhuo M, Qi XL. [Current situation of screening, prevention and treatment of bleeding esophageal varices in cirrhotic portal hypertension in Tibet region: a multicenter study]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:737-741. [PMID: 33053972 DOI: 10.3760/cma.j.cn501113-20200615-00318] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate and analyze the current situation, screening, clinical characteristics, prevention and treatment of bleeding esophageal varices in cirrhotic patients with portal hypertension in Tibet region. Methods: Clinical data of cirrhotic patients with portal hypertension through March 2017 to February 2020 from Tibet region were collected and analyzed retrospectively. Results: 511 cases with liver cirrhosis were included in the study, of which 185 cases (36.20%) had compensated cirrhosis and 326 cases (63.80%) had decompensated cirrhosis. Further analysis of the etiological data of liver cirrhosis showed that 306 cases (59.88%) were of chronic hepatitis B, 113 cases (22.11%) of alcoholic liver disease, and 68 cases (13.31%) of chronic hepatitis B combined with alcoholic liver disease. Among patients with compensated liver cirrhosis, 48 cases (25.95%) underwent endoscopic examination of which 33 diagnosed as high-risk variceal bleeding. However, none of these 33 cases had received non-selective β-blocker therapy, and only four patients had received endoscopic variceal banding therapy. Among patients with decompensated liver cirrhosis, 83 cases (25.46%) had a history of upper gastrointestinal bleeding, 297 cases (91.10%) had ascites, 23 cases (7.05%) had hepatic encephalopathy, and 3 cases (0.92%) had hepatorenal syndrome. Among the patients with a history of upper gastrointestinal bleeding, 42 cases (50.60%) had received secondary preventive treatment for bleeding esophageal varices, including 39 cases of endoscopic treatment, 1 case of endoscopic combined drug treatment, 3 cases of interventional treatment, and 2 cases of surgical treatment. Conclusion: Chronic hepatitis B and alcoholic liver diseases are the main causes of liver cirrhosis in Tibet region. Moreover, this region lacks screening, prevention and treatment for bleeding esophageal varices in cirrhotic patients with portal hypertension. Therefore, it is necessary to increase the screening of high-risk groups to prevent and improve the first-time bleeding, and promote multidisciplinary team to prevent and treat re-bleeding.
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Affiliation(s)
- H Huan
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - C Liu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - Z Yang
- Department of Hepatology, The Third People's Hospital of Tibet Autonomous Region, Lasa 850000, China
| | - J L Bao
- Department of Gastroenterology,Shannan People's Hospital, Shannan 856000, China
| | - C Liu
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - J T Wang
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - L Zhang
- Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | - C H Wang
- Department of Gastroenterology, The Second People's Hospital of Tibet Autonomous Region, Lasa 850000, China
| | - R S P Ci
- Department of Internal Medicine, Naqu Tibetan Hospital, Naqu 852000, China
| | - Q L Tu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - T Ren
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - D Xu
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - H J Zhang
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X G Li
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - N Kang
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X P Li
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - Y H Wu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - X Pu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - Y J Tan
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - J J Cao
- Medical Administration, Ali District Health and Safety Commission, Ali 859000, China
| | - S W Q Luo
- Department of Internal Medicine, Naqu Tibetan Hospital, Naqu 852000, China
| | - S Q P Luo
- Department of Pediatrics, Ali District People's Hospital, Ali 859000, China
| | - M Zhuo
- Department of Gastroenterology, Lasa People's Hospital, Lasa 850000, China
| | - X L Qi
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
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Wang W, Xu C, Lei L, Wang D, Pu X, Zhu Y, Huang J, Yu Z, Li J, Fang Y, Wang H, Zhuang W, Lan S, Cai X, Zhang Y, Gao W, Wang L, Fang M, Lv T, Song Y. 1336P Patients with EGFR exon 20 insertion mutation non-small cell lung cancer benefit from pemetrexed-based chemotherapy: A multicenter study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Pu X, Huang XY, Yang B, Bai T, Liu YM, Huang LJ. [Successful emergency hybrid treatment for aortic rupture in a pregnant patient with congenital aortic coarctation]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:74-76. [PMID: 32008300 DOI: 10.3760/cma.j.issn.0253-3758.2020.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X Pu
- Department of Intervention Diagnose and Therapy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - X Y Huang
- Department of Intervention Diagnose and Therapy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - B Yang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029,China
| | - T Bai
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029,China
| | - Y M Liu
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029,China
| | - L J Huang
- Department of Intervention Diagnose and Therapy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Li X, Wang W, Xu C, Pu X, Fang S, Cai X, Fang Y, Zhu Y, Wang H, Liang X, Zhuang W, Zhang Y, Wang L, Cai X, Li J, Feng H, Fang M, Chen G, Lv T, Song Y. A multicenter study of NRG1 fusions in Chinese non-small cell lung cancer patients and response to afatinib using next generation sequencing. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pu X, Tang G, Cai K, Huang Y, Ping M, Peng Z, Qiu H. A parallel deep learning network framework for whole-body bone scan image analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Hua D, Liu Q, Xu J, Xu Y, Chen M, Deng L, Wu J, Zhou T, Zhang L, Tan J, Pu X, Shang Y, Hua J, Li Y, Cai W, Gu Y, Peng X. OA03.01 A Non-Randomized, Open-Label, Prospective, Multicenter Study of Apatinib as Second-Line and Later-Line Therapy in Patients with ES-SCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Peng W, Li J, Chang L, Bai J, Zhang Y, Guan Y, Pu X, Jiang M, Cao J, Chen B, Xia X, Yi X, Zhang J, Wu L. MA14.01 Clinical and Genomic Features of Chinese Lung Cancer Patients with Germline Mutations. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Touchstone H, Bryd R, Loisate S, Thompson M, Kim S, Puranam K, Senthilnathan AN, Pu X, Beard R, Rubin J, Alwood J, Oxford JT, Uzer G. Recovery of stem cell proliferation by low intensity vibration under simulated microgravity requires LINC complex. NPJ Microgravity 2019; 5:11. [PMID: 31123701 PMCID: PMC6520402 DOI: 10.1038/s41526-019-0072-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 03/20/2019] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stem cells (MSC) rely on their ability to integrate physical and spatial signals at load bearing sites to replace and renew musculoskeletal tissues. Designed to mimic unloading experienced during spaceflight, preclinical unloading and simulated microgravity models show that alteration of gravitational loading limits proliferative activity of stem cells. Emerging evidence indicates that this loss of proliferation may be linked to loss of cellular cytoskeleton and contractility. Low intensity vibration (LIV) is an exercise mimetic that promotes proliferation and differentiation of MSCs by enhancing cell structure. Here, we asked whether application of LIV could restore the reduced proliferative capacity seen in MSCs that are subjected to simulated microgravity. We found that simulated microgravity (sMG) decreased cell proliferation and simultaneously compromised cell structure. These changes included increased nuclear height, disorganized apical F-actin structure, reduced expression, and protein levels of nuclear lamina elements LaminA/C LaminB1 as well as linker of nucleoskeleton and cytoskeleton (LINC) complex elements Sun-2 and Nesprin-2. Application of LIV restored cell proliferation and nuclear proteins LaminA/C and Sun-2. An intact LINC function was required for LIV effect; disabling LINC functionality via co-depletion of Sun-1, and Sun-2 prevented rescue of cell proliferation by LIV. Our findings show that sMG alters nuclear structure and leads to decreased cell proliferation, but does not diminish LINC complex mediated mechanosensitivity, suggesting LIV as a potential candidate to combat sMG-induced proliferation loss.
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Affiliation(s)
- H. Touchstone
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
| | - R. Bryd
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
| | - S. Loisate
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
| | - M. Thompson
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
| | - S. Kim
- Department of Medicine, University of North Carolina Chapel Hill, Chapel Hill, NC 27599 USA
| | - K. Puranam
- Department of Medicine, University of North Carolina Chapel Hill, Chapel Hill, NC 27599 USA
| | - A. N. Senthilnathan
- Department of Medicine, University of North Carolina Chapel Hill, Chapel Hill, NC 27599 USA
| | - X. Pu
- Biomolecular Research Center, Boise State University, Boise, ID 83725 USA
| | - R. Beard
- Biomolecular Research Center, Boise State University, Boise, ID 83725 USA
| | - J. Rubin
- Department of Medicine, University of North Carolina Chapel Hill, Chapel Hill, NC 27599 USA
| | - J. Alwood
- Space Biosciences Division, NASA-Ames Research Center, Mountain View, CA 94035 USA
| | - J. T. Oxford
- Biomolecular Research Center, Boise State University, Boise, ID 83725 USA
| | - G. Uzer
- Department of Mechanical and Biomedical Engineering, Boise State University, Boise, ID 83725 USA
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Yang SN, Pu X, Xiang SL, Chen JP, Pei L. [Brain derived neurotrophic factor enhances the role of mesenchymal stem cells in inhibiting follicular helper T cells]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:37-40. [PMID: 29551031 PMCID: PMC7343120 DOI: 10.3760/cma.j.issn.0253-2727.2018.01.008] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
目的 探讨脑源性神经营养因子(BDNF)增强间充质干细胞(MSC)抑制滤泡辅助性T细胞(Tfh细胞)的作用及机制。 方法 ELISA法检测MSC培养上清中吲哚胺2,3-二加氧酶(IDO)、IL-10、TGF-β和IL-21的含量;采集健康志愿者的外周血标本,采用人淋巴细胞分离液分离外周血中的淋巴细胞;采用Transwell小室进行MSC和淋巴细胞共培养,流式细胞术检测CD4+CXCR5+ Tfh细胞及其亚群的比例。 结果 ①BDNF组(BDNF刺激的MSC)培养上清IL-10、TGF-β、IDO浓度均高于对照组(加入等体积磷酸盐缓冲液)[IL-10:(42.1±4.4)ng/ml对(19.3±2.1)ng/ml,t=4.761,P=0.009;TGF-β:(13.9±1.7)ng/ml对(5.3±0.6)ng/ml,t=5.129,P=0.008;IDO:(441.3±56.9)ng/ml对(226.7±37.6)ng/ml,t=3.130,P=0.035];②BDNF组(淋巴细胞与BDNF刺激的MSC共培养)与MSC组(淋巴细胞与MSC共培养)比较:CD4+CXCR5+Tfh细胞比例降低[(3.37±0.21)%对(6.51±0.27)%,t=9.353,P<0.001],CD4+ CXCR5+ CXCR3+ CCR6−Tfh1细胞比例升高[(41.14±2.04)%对(26.72±2.57)%,t=4.383,P=0.012],CD4+CXCR5+CXCR3−CCR6−Tfh2细胞和CD4+CXCR5+CXCR3−CCR6+Tfh17细胞比例降低[Tfh2:(30.16±5.38)%对(43.26±4.11)%,t=4.426,P=0.012;Tfh17:(15.61±1.52)%对(22.32±0.72)%,t=4.202,P=0.014],CD4+CXCR5+Foxp3+ Tfr细胞比例升高[(4.95±0.22)%对(2.32±0.16)%,t=10.241,P<0.001],淋巴细胞培养上清中IL-21浓度降低[(0.28±0.03)ng/ml对(0.85±0.08)ng/ml,t=6.675,P=0.003]。 结论 BDNF能够增强MSC抑制Tfh细胞的作用,机制是抑制淋巴细胞中Tfh细胞比例升高及其向Tfh2和Tfh17亚群的分化。
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Affiliation(s)
- S N Yang
- Department of Hematology, Southwest Hospital, Army Medical University, Chongqing 400038, China
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Pu X, Huang XY, Ning Y, Wu WH, Pu JZ, Huang LJ. [Effect of emergency thoracic endovascular aortic repair in patients with acute traumatic thoracic aortic injury]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:559-563. [PMID: 30032548 DOI: 10.3760/cma.j.issn.0253-3758.2018.07.010] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of emergency thoracic endovascular aortic repair (TEVAR) in patients with acute traumatic thoracic aortic injury. Method: From January 2014 to December 2016, a total of 35 patients with acute traumatic thoracic aortic injuries were treated with emergency TEVAR in our hospital, their clinical data were analyzed retrospectively in this study. Results: The patients were 42 (34, 55) years old,and there were 31 males.All cases were diagnosed by emergency aorta computed tomography angiography (CTA),and 5 cases were diagnosed as aortic transaction, 13 cases were diagnosed as aortic pseudoaneurysm, 7 cases were diagnosed as aortic dissection, and 10 cases were diagnosed as aortic intramural hematoma combined hemothorax.The concomitant injuries included cerebral contusion (3 cases, 8.6%), pulmonary contusion with rib fracture (31 cases, 88.5%), long bone fracture (7 cases, 22.5%), contusion of viscera or internal organs (3 cases, 8.6%).Emergency TEVAR were performed with vascular suture system preset under local anesthesia after diagnosis,and combined injury was treated in related departments.CTA was repeated after 1, 3 and 6 months and yearly thereafter. One patient died before transferring to catheter room,and 34 (97.1%) patients underwent TEVAR procedure successfully.Time from door to operating room was (88.6±26.6) minutes,and the procedure time was (52.0±9.4) minutes. A total of 69 Perclose Proglide vascular suture system were used,and 2 cases underwent surgical suture because of hematoma and pseudoaneurysm formation in femoral arteries.The involved length of thoracic aorta was (44.5±7.4)mm. A total of 46 stent-grafts were implanted, the length of stent-graft was (164.3±15.2)mm,and the proximal oversize rate was (22.3±8.6)%. The follow-up time was 24 (12,24) months, and there were no procedure related complication such as endoleak and paraplegia. Complete aortic remodeling was observed in 14 cases. Fully thrombolization at stent segments were observed in 7 cases. Fully thrombalization of pseudoaneurysms were observed in 13 cases. One patient complained mild left upper limb weakness due to left subclavian artery occlusion. Conclusion: Emergency TEVAR is safe and effective procedure for the treatment of patients with acute traumatic thoracic aortic injury.
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Affiliation(s)
- X Pu
- Department of Intervention Diagnose and Therapy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Misra N, Pu X, Holt DN, McGuire MA, Tinker JK. Immunoproteomics to identify Staphylococcus aureus antigens expressed in bovine milk during mastitis. J Dairy Sci 2018; 101:6296-6309. [PMID: 29729920 DOI: 10.3168/jds.2017-14040] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 03/18/2018] [Indexed: 12/31/2022]
Abstract
Staphylococcus aureus is an opportunistic pathogen affecting both human and animal species. An effective vaccine to prevent S. aureus bovine disease and transmission would have positive effects on animal well-being, food production, and human health. The objective of this study was to identify multiple antigens that are immunoreactive during udder colonization and disease for exploration as vaccine antigens to prevent bovine mastitis. Staphylococcus aureus produces several cell wall-anchored and surface-associated virulence factors that play key roles in the pathogenesis of mastitis. Many of these proteins are conserved between different strains of S. aureus and represent promising vaccine candidates. We used an immunoproteomics approach to identify antigenic proteins from the surface of S. aureus. The expression of cell wall and surface proteins from S. aureus was induced under low iron conditions, followed by trypsin extraction and separation by 2-dimensional electrophoresis. The separated proteins were blotted with antibodies from mastitic bovine milk and identified by liquid chromatography-mass spectrometry. Thirty-eight unique proteins were identified, of which 8 were predicted to be surface exposed and involved in S. aureus virulence. Two surface proteins, iron-regulated surface determinant protein C (IsdC) and ESAT-6 secretion system extracellular protein (EsxA), were cloned, expressed, and purified from Escherichia coli for confirmation of immune reactivity by ELISA. A PCR of 37 bovine S. aureus isolates indicated that the presence of esxA and isdC is conserved, and amino acid alignments revealed that IsdC and EsxA sequences are highly conserved. The immunoproteomics technique used in this study generated reproducible results and identified surface exposed and reactive antigens for further characterization.
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Affiliation(s)
- N Misra
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID 83725
| | - X Pu
- Biomolecular Research Center, Boise State University, Boise, ID 83725
| | - D N Holt
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID 83725
| | - M A McGuire
- Department of Animal and Veterinary Science, University of Idaho, Moscow 83844
| | - J K Tinker
- Biomolecular Sciences Graduate Program, Boise State University, Boise, ID 83725; Department of Biological Sciences, Boise State University, Boise, ID 83725.
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Wu WH, Huang LJ, Pu JZ, Huang XY, Pu X, Ning Y, Wang X. [Feasibility and efficacy of transcatheter closure of anastomotic leakage after aortic surgery using Amplatzer Vascular Plug Ⅲ]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:203-207. [PMID: 29562425 DOI: 10.3760/cma.j.issn.0253-3758.2018.03.007] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility and efficacy of transcatheter closure of anastomotic leakage after aortic surgery using Amplatzer Vascular Plug Ⅲ (AVP Ⅲ). Methods: A retrospective analysis was performed in 5 patients with anastomotic leakage after aortic surgery, who underwent transcatheter closure in our hospital from January to June 2017 using AVP Ⅲ. Surgeries were performed in 3 cases of Standford type A dissection, 1 case of ascending aortic aneurysm and 1 case of persistent truncus.There were 3 males,and age was (43.8±13.1) years old. Anastomotic leakages located at the ascending aorta in 4 patients, and the other one located between the aortic arch and the stent-graft.Three of them had aorta-right atrium fistula and patients suffered from progressive heart failure. False aneurysm between aorta and pulmonary artery was formed in 1 patient, and patent aortic false lumenwas found in the other patient. All the AVP Ⅲ were deployed based on a femoral arteriosus loop. Patients were followed up after transcatheter closure to observe the clinical results. Results: Six AVP Ⅲ were successfully implanted in the 5 patients. Trivial residual shunt was seen in 1 patient after closure. The patients were followed up 6 (1, 6) months. The cardiac function improved from NYHA class Ⅱ-Ⅳ to class Ⅰ-Ⅱ after the procedure in 3 congestive heart failure patients.The right atrium systolic pressure was significantly reduced after the procedure((8.7±1.8) mmHg (1 mmHg=0.133 kPa) vs. (24.3±2.3) mmHg, P=0.03). The diameter of the false aneurysm reduced in 1 patient after the procedure. Complete thrombosis formation of the thoracic false lumen was observed in 1 patient. Conclusion: Transcatheter closure of anastomotic leakage after aortic surgery using AVP Ⅲ is feasible and effective according to our primary experience.
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Affiliation(s)
- W H Wu
- Intervenional Department, Beijing Anzhen Hospital, Capital Medical University, Institute of Beijing Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
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Li D, Liu J, Huang S, Bi X, Wang B, Chen Q, Chen H, Pu X. CCAAT enhancer binding protein β promotes tumor growth and inhibits apoptosis in prostate cancer by methylating estrogen receptor β. Neoplasma 2018; 65:34-41. [PMID: 29322786 DOI: 10.4149/neo_2018_161205n620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The CCAAT enhancer binding protein β (C/EBPβ) is overexpressed at late stages in carcinogenesis of prostate cancer (PCa), suggesting that it could potentially contribute to progression of PCa. Estrogen receptor beta (ERβ) is a tumor suppressor gene in PCa. However, whether C/EBPβ could regulate ERβ by promoter methylation is still poorly understood.In this study, expression levels of C/EBPβ and ERβ in two PC lines (LNCap and PC-3), prostatic epithelial cell line (RWPE-1), forty-eight paired non-cancerous and cancerous peripheral blood samples were examined via qRT-PCR, western blotting and methylation-specific PCR. In addition, PCa cell line was infected with pCDH-C/EBPβ and pLKO.1-C/EBPβ and expression levels of C/EBPβ, ERβ and DNA methyltransferases were detected. Finally, the role of C/EBPβ in proliferation and apoptosis of PCa cell lines was examined by MTT and flow cytometer assay. Our results show a higher frequency of promoter methylation of ERβ levels in blood samples from PCa patients (16 of 48 cases) compared with that from healthy controls (3 of 48). Besides, elevated expression levels of C/EBPβ were found in PCa patients and two PCa lines (LNCap and PC-3) compared to non-cancerous cases or prostatic epithelial cell line (RWPE-1), while opposite expression levels of ERβ were found. Overexpression of C/EBPβ could regulate ERβ expression, DNA methyltransferases expression, cell proliferation and apoptosis. Our results support the conclusion that C/EBPβ down-regulated ERβ expression through increasing its promoter methylation, and then regulated proliferation and apoptosis in PCa.
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Pu X, Wang TJ, Huang X, Melas D, Zanis P, Papanastasiou DK, Poupkou A. Enhanced surface ozone during the heat wave of 2013 in Yangtze River Delta region, China. Sci Total Environ 2017; 603-604:807-816. [PMID: 28442137 DOI: 10.1016/j.scitotenv.2017.03.056] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/06/2017] [Accepted: 03/07/2017] [Indexed: 05/10/2023]
Abstract
Under the background of global warming, occurrence of heat waves has increased in most part of Europe, Asia and Australia along with enhanced ozone level. In this paper, observational air temperature and surface ozone in the Yangtze River Delta (YRD) region of China during summer of 2013, and the regional chemistry-climate model (RegCM-CHEM4) were applied to explore the relationship between heat wave and elevated ground-level ozone. Observations indicated that YRD experienced severe heat waves with maximum temperature up to 41.1°C, 6.1°C higher than the definition of heat wave in China, and can last for as long as 27days. Maximum ozone reached 160.5ppb, exceeding the national air quality standard (secondary level) as 74.7ppb. Moreover, ozone was found to increase at a rate of 4-5ppbK-1 within the temperature range of 28-38°C, but decrease by a rate of -1.3~-1.7ppbK-1 under extremely high temperature. A typical heat wave case (HW: 24/7-31/7) and non-heat wave case (NHW: 5/6-12/6) were selected to investigate the mechanism between heavy ozone and heat waves. It was found that chemical reactions play the most important role in ozone formation during HW days, which result in 12ppb ozone enhancement compared to NHW days. Chemical formation of ozone can be influenced by several factors. During heat waves, a more stagnant condition, controlled by anti-cyclone with sink airflow, led to less water vapor in YRD from south and contributed to less cloud cover, which favored a strong solar radiation environment and ozone significantly increasing. High temperature also slightly promote the effect of vertical turbulence and horizontal advection, which beneficial to ozone remove, but the magnitude is much smaller than chemical effect. Our study suggests that the chemical reaction will potentially lead to substantial elevated ozone in a warmer climate, which should be taken into account in future ozone related issues.
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Affiliation(s)
- X Pu
- School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China
| | - T J Wang
- School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China.
| | - X Huang
- School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, China
| | - D Melas
- Laboratory of Atmospheric Physics, School of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P Zanis
- Department of Meteorology and Climatology, School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - D K Papanastasiou
- Laboratory of Atmospheric Physics, School of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - A Poupkou
- Laboratory of Atmospheric Physics, School of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Pu X, Ning Y, Huang X, Huang L. P3970Emergency endovascular repair for acute traumatic thoracic aortic transection. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- X. Pu
- Beijing Anzhen Hospital, Intervention Department, Beijing, China People's Republic of
| | - Y.I. Ning
- Beijing Anzhen Hospital, Intervention Department, Beijing, China People's Republic of
| | - X.Y. Huang
- Beijing Anzhen Hospital, Intervention Department, Beijing, China People's Republic of
| | - L.J. Huang
- Beijing Anzhen Hospital, Intervention Department, Beijing, China People's Republic of
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Pu X, Wang L, Chang JY, Hildebrandt MAT, Ye Y, Lu C, Skinner HD, Niu N, Jenkins GD, Komaki R, Minna JD, Roth JA, Weinshilboum RM, Wu X. Inflammation-related genetic variants predict toxicity following definitive radiotherapy for lung cancer. Clin Pharmacol Ther 2014; 96:609-15. [PMID: 25054431 PMCID: PMC4206576 DOI: 10.1038/clpt.2014.154] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 07/16/2014] [Indexed: 12/25/2022]
Abstract
Definitive radiotherapy improves locoregional control and survival in inoperable non-small cell lung cancer (NSCLC) patients. However, radiation-induced toxicities (pneumonitis/esophagitis) are common dose-limiting inflammatory conditions. We therefore conducted a pathway-based analysis to identify inflammation-related SNPs associated with radiation-induced pneumonitis or esophagitis. 11,930 SNPs were genotyped in 201 stage I-III NSCLC patients treated with definitive radiotherapy. Validation was performed in an additional 220 NSCLC cases. After validation, 19 SNPs remained significant. A polygenic risk score (PRS) was generated to summarize the effect from validated SNPs. Significant improvements in discriminative ability were observed by adding the PRS into the clinical/epidemiological variable-based model. We then used 277 lymphoblastoid cell-lines to assess radiation sensitivity and eQTL relationships of the identified SNPs. Three genes (PRKCE,DDX58 and TNFSF7) were associated with radiation sensitivity. We concluded that inflammation-related genetic variants could contribute to the development of radiation-induced toxicities. These loci could assist in predicting those unfavorable events.
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Affiliation(s)
- X Pu
- Department of Epidemiology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - L Wang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - J Y Chang
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - M A T Hildebrandt
- Department of Epidemiology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - Y Ye
- Department of Epidemiology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - C Lu
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - H D Skinner
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - N Niu
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - G D Jenkins
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - R Komaki
- Department of Radiation Oncology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
| | - J D Minna
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - J A Roth
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - R M Weinshilboum
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA
| | - X Wu
- Department of Epidemiology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA
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Zhang W, Hua D, Ma S, Chen Z, Wang Y, Zhang F, Len F, Pu X. Preliminary Study for Vascular Tissue Engineering by Electrospinning Angelica Polysaccharide (ASP)/PLA Microfibrous Scaffolds. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2013.854241] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chen W, Zhou Y, Pu X, Xiao C. Evaluation of Propess outcomes for cervical ripening and induction of labour in full-term pregnancy. J OBSTET GYNAECOL 2013; 34:255-8. [DOI: 10.3109/01443615.2013.853730] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pu X, Xiao Q, Kiechl S, Chan K, Ng FL, Gor S, Poston RN, Fang C, Patel A, Senver EC, Shaw-Hawkins S, Willeit J, Liu C, Zhu J, Tucker AT, Xu Q, Caulfield MJ, Ye S. YIA3: ADAMTS7 CLEAVAGE AND VASCULAR SMOOTH MUSCLE CELL MIGRATION IS AFFECTED BY A CORONARY ARTERY DISEASE ASSOCIATED VARIANT. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chan K, Motterle A, Patel RS, Pu X, Ye S. B: CHROMOSOME 9P21 LOCUS AND CORONARY ARTERY DISEASE – COLLABORATIVE META-ANALYSIS ON ANGIOGRAPHIC BURDEN AND MOLECULAR FUNCTION ANALYSIS. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Tan KK, Tang KZ, Putra AS, Pu X, Huang S, Lee TH, Ng SC, Tan LG. An auto-perfusing umbilical cord blood collection instrument. ISA Trans 2012; 51:420-429. [PMID: 22342030 DOI: 10.1016/j.isatra.2012.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 12/30/2011] [Accepted: 01/03/2012] [Indexed: 05/31/2023]
Abstract
In this paper, the development of an automated umbilical cord blood (UCB) collection instrument, comprising of mechanical, electronics and control components, is provided in detail. UCB from the placenta provides a rich source of highly proliferative cells for many clinical uses as it contains rich Hematopoietic Stem Cells (HSCs) which yield many benefits over traditional sources such as the bone marrow and periphery blood. Current collection of UCB uses a syringe to extract blood from placenta, which is highly limited in volume and cell numbers. This paper will present the development of an automated UCB collection instrument to yield improved performance which comprised four subsystems. First, a placenta handling system is designed to produce air pressure which can realize the emulation of the uterus compression on the placenta. Second, an auto-medium injector system is presented to enable perfusion automatically. Third, a time window widening system is developed which generates vibrations during the perfusion phase and helps the exposed end of the cord cool down to a low temperature. Finally, a control platform is used to integrate all systems working together, hosting the control algorithms which operate the instrument automatically.
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Affiliation(s)
- K K Tan
- Department of Electrical & Computer Engineering, National University of Singapore, Singapore.
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Han L, Shen X, Pan L, Lin S, Liu X, Lin L, Pu X. Changes of myeloperoxidase (MPO) and ischaemia modified albumin in patients with coronary heart disease. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Pu X, Lu C, Stewart DJ, Gu J, Hildebrandt MAT, Lin J, Lippman SM, Xifeng W. MicroRNA-Related Genetic Variants as Predictors of Early Stage Non–Small Cell Lung Cancer Clinical Outcomes. Cancer Epidemiol Biomarkers Prev 2011. [DOI: 10.1158/1055-9965.epi-11-0095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Meyer L, Liang D, Lin J, Ye Y, Huang M, Pu X, Lu K, Wu X. Genetic variants in the mammalian target of rapamycin (mTOR) signaling pathway as predictors of clinical response and survival in women with ovarian cancer. Gynecol Oncol 2011. [DOI: 10.1016/j.ygyno.2010.12.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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46
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Ali S, Chapman J, Lipton A, Leitzel K, Pritchard K, Pu X, Wilson C, Carney W, Shepherd L, Pollak M. Examination of TIMP-1 Levels and Relapse-Free Survival for Patients in NCIC CTG MA.14 Who Received Adjuvant Tamoxifen +/- Octreotide LAR. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-3022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Tissue inhibitor of metalloproteinase-1 (TIMP-1) has been shown to have diverse multifunctional roles in tumorigenesis. AL/KL/SA postulated from first line metastatic endocrine therapy that elevated pre-treatment serum TIMP-1 required additional therapy. NCIC CTG MA.14 adjuvant endocrine trial permitted examination of whether TIMP-1 serum levels post-chemotherapy was associated with RFS. Methods: NCIC CTG MA.14 is a trial where 667 postmenopausal patients were randomized to receive adjuvant tamoxifen +/- octreotide LAR with a stratification factor of no, concurrent or sequential chemotherapy. For the purposes of this work, this was simplified to whether a patient had or had not received adjuvant chemotherapy prior to the serum draw. Serum TIMP-1 was assessed on >90% of the trial patients. We examined the effect of baseline TIMP-1 levels on relapse-free survival (RFS) of 1) all types, 2) bone only, 3) all types of bone, and 4) non-bone, by timing of chemotherapy before the serum draw utilizing continuous TIMP (ng/ml) and categorical TIMP (<454, >454 ng/ml, based on 95% non-parametric cut-point for healthy post-menopausal females). Data were available on patient and tumour characteristics of age (years), pathologic tumour size (cm), pathologic lymph node status (# nodes), IGF-1, C-peptide, IGFBP-3. Step-wise forward Cox multivariate models were used where a factor was added if p<=0.05, and interaction terms were added for TIMP-1 level and timing of chemotherapy. Results: High (categorical) TIMP-1 was significantly associated with longer RFS (p=0.04) in the non-bone RFS multivariate model in the subgroup of patients who had prior chemotherapy, but not in those who did not. The interaction between TIMP-1 and administration of chemotherapy before serum draw was significant (p=0.02). High (continuous) TIMP-1 was significantly associated with longer bone only RFS (p=0.04) in subgroup who had no chemotherapy before the serum draw, but not in those who may or may not have had it after. There was no significant interaction effect. Categorical and continuous TIMP-1 were not associated with any other type of RFS. Conclusions: We found a predictive benefit with the assessment of serum TIMP-1 in hormone receptor positive patients, that high TIMP-1 levels after adjuvant chemotherapy were predictive of a reduction in non-bone RFS.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 3022.
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Affiliation(s)
| | - J. Chapman
- 2NCIC Clinical Trials Group, Queen's University, ON, Canada
| | - A. Lipton
- 3Penn State/Hershey Medical Center, PA,
| | | | - K. Pritchard
- 4Sunnybrook Odette Cancer Centre, University of Toronto, ON, Canada
| | - X. Pu
- 2NCIC Clinical Trials Group, Queen's University, ON, Canada
| | - C. Wilson
- 2NCIC Clinical Trials Group, Queen's University, ON, Canada
| | - W. Carney
- 5Siemens Healthcare Diagnostics Inc, MA,
| | - L. Shepherd
- 2NCIC Clinical Trials Group, Queen's University, ON, Canada
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Xiao J, Guo C, Zhai L, Li H, Fu X, Huang Y, Huang Y, Huang J, Pu X, Lin T, Ye S. Prognostic value of different B symptoms in upper aerodigestive tract NK/T-cell lymphoma. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e19544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e19544 Background: Extranodal NK/T-cell lymphoma (ENKL) is a rare disease originated from NK or toxic T cells. ENKL arising from the upper aerodigestive tract (UNKTL) is a newly recognized subtype and commonly presents with B symptoms. This study is to investigate the prognostic value of different B symptoms in UNKTL. Methods: UNKTL cases with detailed clinical, pathological and prognostic data in our center since 2001 to 2007 were retrospectively analyzed with the major study endpoint of overall survival (OS). Central pathological review was performed. Survival curves were estimated by Kaplan-Meier method and tested by Log Rank method. Statistically significant factors in univariate analysis were then included in multivariate analysis. B symptoms were defined as fever, night sweat and weight loss according to the Ann Arbor Cotswolds meeting. The predictive values of survival for each type of B symptoms were studied independently. Results: 172 cases of UNKTL with a median follow-up duration of 27.4 months were included. 45 ladies and 127 gentlemen had a median age of 43 years. 98 cases were Ann Arbor stage I, 54 were stage II and the remaining 20 cases were stage III or IV. About half of the patients present B symptoms: 82 had fever, 5 had night sweat and 6 present weight loss. Totally 18 patients had ECOG PS larger than 1. The 5-year OS rate of the whole group is 41.8%. Patients with persistent fever before treatment indicated a poor outcome in the univariate analysis (p=.033) and its prognostic value was also confirmed by the Cox regression (p=.030) whereas those of night sweat and weight loss were not (p= .960 and .824 respectively). Conclusions: B symptoms were common in UNKTL patients. Our data suggested that only fever among the three types of B symptoms was independent prognostic factor for UNKTL but it still needs further confirmation. No significant financial relationships to disclose.
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Affiliation(s)
- J. Xiao
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - C. Guo
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - L. Zhai
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - H. Li
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X. Fu
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Y. Huang
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Y. Huang
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - J. Huang
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X. Pu
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - T. Lin
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S. Ye
- Sun Yat-sen University Cancer Center, Guangzhou, China; The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Chen J, Pu X, Deng X, Liu S, Li H, Civerolo E. A phytoplasma related to 'Candidatus phytoplasma asteri' detected in citrus showing Huanglongbing (yellow shoot disease) symptoms in Guangdong, P. R. China. Phytopathology 2009; 99:236-242. [PMID: 19203275 DOI: 10.1094/phyto-99-3-0236] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Citrus huanglongbing (HLB) or yellow shoot disease (i.e., greening disease) is highly destructive to citrus production worldwide. Understanding the etiology of HLB is critical for managing the disease. HLB is currently associated with infection by 'Candidatus Liberibacter spp.' around the world, including China. However, Koch's postulates have not been fulfilled. In addition, other plant pathogens also may be involved in HLB. In a survey performed in Guangdong Province, P. R. China in 2006 and 2007, 141 citrus samples showing typical symptoms of HLB from 11 different cities were collected. Polymerase chain reaction (PCR) using phytoplasma-specific primer sets fU5/rU3 nested with primer set P1/P7 identified 110 (78.0%) positive samples. A 1,785-bp amplicon was obtained with primer set P1/P7. Analysis showed a 100% identity of this sequence in the region of 16S rDNA and 16S-23S rRNA intergenic transcribed spacer to three strains of 'Candidatus Phytoplasma asteri' (onion yellows [Japan], aster yellows 'watercress' [Hawaii], and valeriana yellows [Lithuania]). Of the 141 samples, 89 (63.1%) samples were positive for 'Ca. Liberibacter asiaticus'. When mixed infection was considered, 69 (48.9%) samples were positive for both 'Ca. P. asteri' and 'Ca. L. asiaticus'. Transmission electron microscopy (TEM) showed low titers of both walled and wall-less bodies in the phloem sieve tubes of HLB citrus. When transmission from symptomatic citrus to periwinkle (Catharanthus roseus) via dodder (Cuscuta campestris) was conducted, both phytoplasma and 'Ca. L. asiaticus' were detected from the affected periwinkle. In addition to yellowing/mottling, the infected periwinkle showed symptoms of virescence and phyllody which are commonly associated with phytoplasmal diseases. TEM analysis of affected periwinkle revealed pleomorphic and wall-less organisms, characteristic of phytoplasmas, filling some phloem sieve tubes. In contrast, walled bacteria were at low titer. This study showed that in addition to 'Ca. L. asiaticus', a phytoplasma related to 'Ca. P. asteri' could also be detected in citrus showing HLB symptoms in Guangdong.
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Affiliation(s)
- J Chen
- U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS), Parlier, CA, USA.
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Borowsky B, Adham N, Jones KA, Raddatz R, Artymyshyn R, Ogozalek KL, Durkin MM, Lakhlani PP, Bonini JA, Pathirana S, Boyle N, Pu X, Kouranova E, Lichtblau H, Ochoa FY, Branchek TA, Gerald C. Trace amines: identification of a family of mammalian G protein-coupled receptors. Proc Natl Acad Sci U S A 2001; 98:8966-71. [PMID: 11459929 PMCID: PMC55357 DOI: 10.1073/pnas.151105198] [Citation(s) in RCA: 604] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Tyramine, beta-phenylethylamine, tryptamine, and octopamine are biogenic amines present in trace levels in mammalian nervous systems. Although some "trace amines" have clearly defined roles as neurotransmitters in invertebrates, the extent to which they function as true neurotransmitters in vertebrates has remained speculative. Using a degenerate PCR approach, we have identified 15 G protein-coupled receptors (GPCR) from human and rodent tissues. Together with the orphan receptor PNR, these receptors form a subfamily of rhodopsin GPCRs distinct from, but related to the classical biogenic amine receptors. We have demonstrated that two of these receptors bind and/or are activated by trace amines. The cloning of mammalian GPCRs for trace amines supports a role for trace amines as neurotransmitters in vertebrates. Three of the four human receptors from this family are present in the amygdala, possibly linking trace amine receptors to affective disorders. The identification of this family of receptors should rekindle the investigation of the roles of trace amines in mammalian nervous systems and may potentially lead to the development of novel therapeutics for a variety of indications.
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Affiliation(s)
- B Borowsky
- Synaptic Pharmaceutical Corporation, Paramus, NJ 07652, USA.
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Pu X. [Ischemic heart disease induced by myocardial bridges. Report of 2 cases]. Hunan Yi Ke Da Xue Xue Bao 2001; 23:423. [PMID: 11189419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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