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Ren HL, Shen X, Ding RT, Cai HB, Zhang GL. Preoperative Range of Motion in Extension May Influence Postoperative Cervical Kyphosis After Laminoplasty. Spine (Phila Pa 1976) 2023; 48:1308-1316. [PMID: 36856549 DOI: 10.1097/brs.0000000000004610] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/01/2023] [Indexed: 03/02/2023]
Abstract
STUDY DESIGN Retrospective observational study. OBJECTIVE The objective of this study was to investigate factors associated with cervical kyphosis after laminoplasty. SUMMARY OF BACKGROUND DATA Many factors are reportedly associated with the deterioration of cervical curvature after laminoplasty, including cervical lordosis angle, cervical spine range of motion (ROM), T1 slope, and C2-C7 sagittal vertical axis. Postlaminoplasty kyphosis or deterioration of cervical curvature is likely caused by multiple factors. There is currently no consensus on these issues. MATERIALS AND METHODS Data of patients treated with laminoplasty for degenerative cervical myelopathy at our institution during 2008-2018 were reviewed. The following variables were collected for each patient: age and sex; follow-up time; surgery involving C3 (yes or no); surgery involving C7 (yes or no); distribution of segments operated on; number of laminae operated on; flexion, extension, and total ROM; cervical lordotic angle; longitudinal distance index; curvature index; C2-C7 sagittal vertical axis; and T1 slope. Logistic regression analysis was used to assess possible risk factors for postoperative kyphosis. Receiver operating characteristic curves were constructed to determine the cutoff values of risk factors. RESULTS The study cohort comprised 151 patients. Logistic regression analysis indicated that sex, number of laminae operated on, and preoperative extension ROM were significantly associated with postoperative cervical kyphosis ( P <0.05). There was significantly greater postoperative kyphosis in women than in men; the more segments operated on, the greater the risk of postoperative kyphosis, and the larger the preoperative extension ROM, the lower the risk of postlaminoplasty kyphosis. Receiver operating characteristic curve analysis showed that the cutoff value for preoperative extension ROM is 22.1°. CONCLUSIONS Preoperative extension ROM may be associated with the development of postoperative kyphosis. The cutoff value of preoperative extension ROM that suggested the prospect of postoperative kyphosis in our sample was 22.1°.
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Affiliation(s)
- Hai-Long Ren
- Division of Spinal Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xing Shen
- Division of Spinal Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Ruo-Ting Ding
- Division of Spinal Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Hai-Bo Cai
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Gong-Liang Zhang
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
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Yao XQ, Liu ZY, Chen JY, Huang ZC, Liu JH, Sun BH, Zhu QA, Ding RT, Chen JT. Proteomics and bioinformatics reveal insights into neuroinflammation in the acute to subacute phases in rat models of spinal cord contusion injury. FASEB J 2021; 35:e21735. [PMID: 34143440 DOI: 10.1096/fj.202100081rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 01/14/2021] [Revised: 05/18/2021] [Accepted: 06/01/2021] [Indexed: 01/16/2023]
Abstract
Neuroinflammation is recognized as a hallmark of spinal cord injury (SCI). Although neuroinflammation is an important pathogenic factor that leads to secondary injuries after SCI, neuroprotective anti-inflammatory treatments remain ineffective in the management of SCI. Moreover, the molecular signatures involved in the pathophysiological changes that occur during the course of SCI remain ambiguous. The current study investigated the proteins and pathways involved in C5 spinal cord hemi-contusion injury using a rat model by means of 4-D label-free proteomic analysis. Furthermore, two Gene Expression Omnibus (GEO) transcriptomic datasets, Western blot assays, and immunofluorescent staining were used to validate the expression levels and localization of dysregulated proteins. The present study observed that the rat models of SCI were associated with the enrichment of proteins related to the complement and coagulation cascades, cholesterol metabolism, and lysosome pathway throughout the acute and subacute phases of injury. Intriguingly, the current study also observed that 75 genes were significantly altered in both the GEO datasets, including ANXA1, C1QC, CTSZ, GM2A, GPNMB, and PYCARD. Further temporal clustering analysis revealed that the continuously upregulated protein cluster was associated with immune response, lipid regulation, lysosome pathway, and myeloid cells. Additionally, five proteins were further validated by means of Western blot assays and the immunofluorescent staining showed that these proteins coexisted with the F4/80+ reactive microglia and infiltrating macrophages. In conclusion, the proteomic data pertaining to the current study indicate the notable proteins and pathways that may be novel therapeutic targets for the treatment of SCI.
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Affiliation(s)
- Xin-Qiang Yao
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhong-Yuan Liu
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jia-Ying Chen
- Department of Comprehensive Medical Treatment Ward, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zu-Cheng Huang
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jun-Hao Liu
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Division of Spine Surgery, Department of Orthopaedics, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Bai-Hui Sun
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qing-An Zhu
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ruo-Ting Ding
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jian-Ting Chen
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zhang J, Ding R, Xian Q, Wang Z, Liu Z, Yang J, Chen J. Serum cystatin C is increased in acute spinal cord injury: a multicentre retrospective study. Spinal Cord 2019; 58:341-347. [PMID: 31586154 PMCID: PMC7062626 DOI: 10.1038/s41393-019-0360-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 01/31/2018] [Revised: 11/08/2018] [Accepted: 08/08/2019] [Indexed: 12/01/2022]
Abstract
Study design A multicentre retrospective study. Objective A multicentre retrospective study was performed to observe the changes in serum cystatin C (CysC) levels in patients with acute spinal cord injury (SCI). Setting Four hospitals in China. Methods Over a 5-year study period, the CysC, creatinine (Cr), and blood urea nitrogen (BUN) levels of people who had incurred SCI in the preceding 7 days were collected and compared with those of people with limb fracture (LF) who were matched for injury time and gender. People with SCI also were grouped by injury duration, ASIA Impairment Scale (AIS) grade and the presence or absence of steroid therapy and compared each day. Results Three hundred and twenty-three samples from people with SCI were retrospectively collected; their mean serum CysC levels were significantly higher than those of people with LF (p < 0.001); No significant difference was observed in Cr or BUN levels between the two groups (p > 0.14). CysC levels increased on the second day, peaked on day 3, and returned to normal on day 5. The more severely injured individuals had higher CysC levels. Steroid therapy or not had no influence for CysC levels. Conclusion CysC levels are increased in patients with acute SCI, possibly as a direct result of injury. Serum CysC is a potential biomarker of SCI.
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Affiliation(s)
- JinYuan Zhang
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - RuoTing Ding
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - QingZhang Xian
- Department of Orthopedics, Panyu Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - ZhiKun Wang
- Department of Spinal Surgery, Dongguan Third People's Hospital, Dongguan, China
| | - ZhongYuan Liu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - JinCheng Yang
- Department of Spinal Surgery, General Hospital of Guangzhou Military Command, Guangzhou, China
| | - JianTing Chen
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Song RY, Ding RT, Cui W. [Impact of Myocardial Infarction and Abnormalities of Cardiac Conduction System on Sudden Cardiac Death]. Fa Yi Xue Za Zhi 2017; 33:171-174. [PMID: 29231026 DOI: 10.3969/j.issn.1004-5619.2017.02.014] [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] [Received: 06/30/2016] [Indexed: 11/18/2022]
Abstract
Sudden cardiac death (SCD), most commonly seen in coronary heart disease, is a kind of sudden death caused by series of cardiac parameters, which usually combines with myocardial infarction. However, some SCDs (including early myocardial infarction) happen suddenly and cause death in a very short time. In these circumstances, typical morphological changes are lack in macroscopic or microscopic fields, which make such SCDs become the emphasis and difficulty in the present research. SCD caused by myocardial infarction and abnormalities of cardiac conduction system (CCS) is related to atherosclerosis of coronary artery closely. This paper reviews cardiac dysfunction caused by myocardial infarction and diseases of CCS from morphology and molecular biology, and explores potential relationship between them. This paper aims to provide clues to the mechanism of myocardial infarction related sudden death and possible assistance for forensic diagnosis of SCD.
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Affiliation(s)
- R Y Song
- Medical College of Qingdao University, Qingdao 266000, China.,Forensic Medicine and Medical Laboratory Science of Jining Medical University, Jining 272067, China
| | - R T Ding
- Forensic Medicine and Medical Laboratory Science of Jining Medical University, Jining 272067, China
| | - W Cui
- Forensic Medicine and Medical Laboratory Science of Jining Medical University, Jining 272067, China
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Chen GX, Zheng S, Qin S, Zhong ZM, Wu XH, Huang ZP, Li W, Ding RT, Yu H, Chen JT. Effect of low-magnitude whole-body vibration combined with alendronate in ovariectomized rats: a random controlled osteoporosis prevention study. PLoS One 2014; 9:e96181. [PMID: 24796785 PMCID: PMC4010456 DOI: 10.1371/journal.pone.0096181] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 04/04/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Alendronate (ALE) is a conventional drug used to treat osteoporosis. Low-magnitude whole-body vibration (WBV) exercise has been developed as a potential treatment for osteoporosis. The aim of this study was to investigate whether low-magnitude WBV could enhance the protective effect of ALE on bone properties in ovariectomized rats. METHODS A total of 128 Sprague-Dawley rats were randomly divided into five groups (SHAM, OVX+VEH, OVX+WBV, OVX + ALE, OVX+WBV+ALE). The level of WBV applied was 0.3 g at 45-55 Hz for 20 min/day, 5 day/week and for 3 months. ALE was administered in dose of 1 mg/Kg once a week. Every four weeks eight rats from each group were sacrificed and their blood and both tibiae were harvested. The expression of osteocalcin and CTX in serum was measured by enzyme-linked immunosorbent assay (ELISA) and the tibiae were subjected to metaphyseal three-point bending and μCT analysis. RESULTS Osteocalcin rose after ovariectomy and was not appreciably changed by either alendronate or WBV alone or in combination. Alendronate treatment significantly prevented an increase in CTX. WBV alone treatment did not alter this effect. Compared with the OVX+WBV group, nearly all tested indices such as the BV/TV, TV apparent, Tb.N, Tb.Th, and Conn.D were higher in the OVX+ALE group at week 12.Compared with the OVX+WBV group, certain tested indices such as BV/TV, TV apparent, Tb.N, and Con.D, were higher in the OVX+WBV+ALE group at week 12. At week 12, tibiae treated with WBV+ALE exhibited a significantly higher Fmax compared to the OVX+VEH group, and a significant difference was also found in energy absorption between the OVX+WBV+ALE and OVX+VEH groups. CONCLUSIONS Compared with the WBV, ALE was more effective at preventing bone loss and improved the trabecular architecture. However, WBV enhanced the effect of alendronate in ovariectomized rats by inducing further improvements in trabecular architecture.
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Affiliation(s)
- Guo-Xian Chen
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
- Department of Orthopedic, the First Hospital of Putian City, Fujian Province, Putian City, China
| | - Shuai Zheng
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Shuai Qin
- Department of ophthalmology, The People's Hospital of Zhuhai, Zhuhai, China
| | - Zhao-Ming Zhong
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Xiu-Hua Wu
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Zhi-Ping Huang
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Wei Li
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Ruo-Ting Ding
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Hui Yu
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
| | - Jian-Ting Chen
- Department of Orthopedic Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangdong Province, Guangzhou, China
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