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Chen Z, Xiao G, Ao J. Resveratrol Attenuates Rheumatoid Arthritis Induce Neutrophil Extracellular Traps via TLR-4 Mediated Inflammation in C57BL/6 Mice. Physiol Res 2024; 73:91-104. [PMID: 38466008 PMCID: PMC11019621 DOI: 10.33549/physiolres.935172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 10/17/2023] [Indexed: 04/26/2024] Open
Abstract
The objective of this study was to evaluate whether RSV inhibits neutrophil extracellular traps (NETs) that induce joint hyperalgesia in C57BL/6 mice after adjuvant-induced arthritis. A subplantar injection of Freund's complete adjuvant was administered to C57BL/6 mice on day 0 for immunization in the AIA model. Resveratrol (RSV, 25 mg/kg) was administered intraperitoneally once daily starting on day 22 and continuing for two weeks. The effects of mechanical hyperalgesia and edema formation have been assessed in addition to histopathological scoring. Mice were sacrificed on day 35 to determine cytokine levels and PADI4 and COX-2 expression levels. ELISA was used to quantify neutrophil extracellular traps (NETs) along with neutrophil elastase-DNA and myeloperoxidase-DNA complexes in neutrophils. An immunohistochemical stain was performed on knee joints to determine the presence of nuclear factor kappa B p65 (NF-kappaB p65). AIA mice were found to have higher levels of NET in joints and their joint cells demonstrated an increased expression of the PADI4 gene. Treatment with RSV in AIA mice (25 mg/kg, i.p.) significantly (P<0.05) inhibited joint hyperalgesia, resulting in a significant increase in mechanical threshold, a decrease in articular edema, a decrease in the production of inflammatory cytokines, increased COX-2 expression, and a decrease in the immunostaining of NF-kappaB. Furthermore, treatment with RSV significantly reduced the amount of neutrophil elastase (NE)-DNA and MPO-DNA complexes, which were used as indicators of NET formation (P<0.05). This study indicates that RSV reduces NET production and hyperalgesia by reducing inflammation mediated by PADI4 and COX-2. According to these data, NETs contribute to joint pain and resveratrol can be used to treat pain in RA through this pathway.
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Affiliation(s)
- Z Chen
- Department of Orthopedics, Wushan County Hospital of TCM, Chongqing, China.
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Jia H, Zhang Z, Qin J, Bao L, Ao J, Qian H. Management for degenerative lumbar spondylolisthesis: a network meta-analysis and systematic review basing on randomized controlled trials. Int J Surg 2024:01279778-990000000-01111. [PMID: 38446872 DOI: 10.1097/js9.0000000000001228] [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] [Received: 12/04/2023] [Accepted: 02/13/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Consensus on the various interventions for degenerative lumbar spondylolisthesis (DLS) remains unclear. MATERIALS AND METHODS We searched PubMed, Embase, Cochrane Library, Web of Science, and major scientific websites until Nov 01, 2023, to screen eligible randomized controlled trials (RCTs) involving the treatment of DLS. The seven most common DLS interventions (non-surgical [NS], decompression only [DO], decompression plus fusion without internal fixation [DF], decompression plus fusion with internal fixation [DFI], endoscopic decompression plus fusion [EDF], endoscopic decompression [ED], and circumferential fusion [360F]) were compared. The primary (pain and disability) and secondary (complications, reoperation rate, operation time, blood loss, length of hospital stay, and satisfaction) outcomes were analyzed. RESULTS Data involving 3,273 patients in 16 RCTs comparing the efficacy of different interventions for DLS were reported. In terms of improving patient pain and dysfunction, there was a significant difference between surgical and NS. EDF showed the greatest improvement in short-term and long-term dysfunction (probability, 7.1% and 21.0%). Moreover, EDF had a higher complication rate (probability 70.8%), lower reoperation rate (probability, 20.2%), and caused greater blood loss (probability, 82.5%) than other surgical interventions. Endoscopic surgery had the shortest hospitalization time (EDF: probability, 42.6%; ED: probability, 3.9%). DF and DFI had the highest satisfaction scores. CONCLUSIONS Despite the high complication rate of EDF, its advantages include improvement in pain, lower reoperation rate, and shorter hospitalization duration. Therefore, EDF may be a good option for patients with DLS as a less invasive surgical approach.
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Affiliation(s)
- Hao Jia
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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Ye S, Li DL, Kong WJ, Xin ZJ, Ao J, Liao WB, Du Q. Surgical Essentials and 2-Year Follow-Up Results of Channel Repair in Endoscopic Transcorporeal Discectomy for Cervical Disc Herniation. World Neurosurg 2024; 182:e755-e763. [PMID: 38097167 DOI: 10.1016/j.wneu.2023.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/11/2024]
Abstract
OBJECTIVE To evaluate long-term outcomes and surgical essentials of channel repair in endoscopic transcorporeal discectomy for cervical disc herniation. METHODS From October 2019 to March 2020, 24 patients with cervical disc herniation underwent channel repair after percutaneous full-endoscopic anterior transcorporeal cervical discectomy. Five interventions were performed at C3-C4, 11 were performed at C4-C5, and 8 were performed at C5-C6. Clinical outcomes were evaluated by Neck Disability Index, Japanese Orthopaedic Association, and visual analog scale scores. Radiologic changes were evaluated with intervertebral disc height and drilled vertebral height. RESULTS All procedures were completed with a mean operating time of 86.40 ± 8.19 minutes. Swollen neck was observed in 5 patients, which resolved within 2 hours. At the final follow-up, Neck Disability Index, Japanese Orthopaedic Association, and visual analog scale scores were improved significantly compared with preoperative assessments (P < 0.05); intervertebral disc height was decreased significantly (P < 0.05); and loss of drilled vertebral height was not significant (P > 0.05). All 24 bony channels disappeared by 3 months postoperatively. No other complications were observed. CONCLUSIONS Percutaneous full-endoscopic anterior transcorporeal cervical discectomy with channel repair offers a minimally invasive and effective treatment option for patients with cervical disc herniation. This technique demonstrates favorable clinical outcomes, including preservation of cervical spine mobility and minimal complications. Although there was a significant loss of intervertebral disc height, no vertebral collapse occurred. Strict adherence to surgical indications and precautions is crucial for successful outcomes. Further research and long-term studies are required to validate the efficacy and safety of this approach in a larger patient population.
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Affiliation(s)
- Sheng Ye
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - De-Li Li
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wei-Jun Kong
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopaedic Surgery, Zunyi Hospital of Traditional Chinese Medicine, Zunyi, Guizhou, China
| | - Zhi-Jun Xin
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wen-Bo Liao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qian Du
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
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Li J, Ao J, Hu X, Du Q, Qin J, Ji WJ, Xin Z, Liao W. Percutaneous Fully-endoscopic Anterior Transcorporeal Procedure for the Treatment of Isolated Ossification of the Posterior Longitudinal Ligament in the Cervical Spine: A Case Report. Orthop Surg 2024; 16:514-520. [PMID: 38111022 PMCID: PMC10834199 DOI: 10.1111/os.13966] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 11/04/2023] [Accepted: 11/16/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND With the development of spinal endoscopic techniques, on the basis of our previous experience in treating various types of cervical disc herniation with this endoscopic technique, we took the lead in applying the percutaneous fully endoscopic anterior transcorporeal procedure to be utilized in the treatment of the isolated cervical ossification of the posterior longitudinal ligament (OPLL). CASE PRESENTATION A 66-year-old male patient who weighed 57 kg, with a height of 169 cm was admitted to the hospital on September 16, 2021 because of recurrent pain and numbness in the neck, shoulder, and right arm for 2 years, which as aggravated for the last 2 weeks. Two years ago, the patient developed neck and shoulder pain accompanied by right arm pain without obvious predisposing factors, and numbness in the first web space of the right hand. In the last 2 weeks, he had difficulty moving the right arm, but no pain or numbness in the contralateral arm. MRI and CT scans demonstrated that the ossified posterior longitudinal ligament of the cervical 5/6 vertebrae with spinal canal stenosis and seriously compressed the spinal cord patient was treated with a percutaneous fully endoscopic anterior transcorporeal procedure. CONCLUSION Our percutaneous fully endoscopic anterior transcorporeal procedure is a feasible, minimally invasive surgery for treating isolated ossification of the posterior longitudinal ligament in the cervical spine.
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Affiliation(s)
- Jin Li
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Jun Ao
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Xiaolin Hu
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Qian Du
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Jianpu Qin
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Wen Jun Ji
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Zhijun Xin
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
| | - Wenbo Liao
- Department of OrthopaedicsAffiliated Hospital of Zunyi Medical UniversityZunyiChina
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Fu SP, Wu XC, Yang RL, Zhao DZ, Cheng J, Qian H, Ao J, Zhang Q, Zhang T. The role and mechanisms of mesenchymal stem cells regulating macrophage plasticity in spinal cord injury. Biomed Pharmacother 2023; 168:115632. [PMID: 37806094 DOI: 10.1016/j.biopha.2023.115632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023] Open
Abstract
Spinal Cord Injury (SCI) is a devastating neurological disorder comprising primary mechanical injury and secondary inflammatory response-mediated injury for which an effective treatment is still unavailable. It is well known that secondary inflammatory responses are a significant cause of difficulties in neurological recovery. An immune imbalance between M1/M2 macrophages at the sites of injury is involved in developing and progressing the secondary inflammatory response. Recently, Mesenchymal Stem Cells (MSCs) have shown significant therapeutic potential in tissue engineering and regenerative medicine due to their potential multidirectional differentiation and immunomodulatory properties. Accumulating evidence shows that MSCs can regulate the balance of M1/M2 macrophage polarization, suppress downstream inflammatory responses, facilitate tissue repair and regeneration, and improve the prognosis of SCI. This article briefly overviews the impact of macrophages and MSCs on SCI and repair. It discusses the mechanisms by which MSCs regulate macrophage plasticity, including paracrine action, release of exosomes and apoptotic bodies, and metabolic reprogramming. Additionally, the article summarizes the relevant signaling pathways of MSCs that regulate macrophage polarization.
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Affiliation(s)
- Sheng-Ping Fu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Xiang-Chong Wu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Rui-Lin Yang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - De-Zhi Zhao
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jie Cheng
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qian Zhang
- Department of Human Anatomy, Zunyi Medical University, Zunyi, Guizhou, China.
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
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Ma Y, Wang W, Zhang D, Ao J, Wang X. [Research updates of osteoimmunomodulation in osteogenesis]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2023; 39:759-766. [PMID: 37515344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
The gold-standard for bone substitution of large bone defects continues to be autogenous bone graft. Artificial bone substitutes are difficult to replace the autogenous bone grafting due to excessive immune response, fast biodegradation characteristics and inappropriate biocompatibility. Given these drawbacks, osteoimmunology and its advanced functional biomaterials have gained growing attention in recent years. Immune system plays an essential role during bone healing via regulating the shift from inflammatory to anti-inflammation phenotype, and inflammatory cytokines response. The inflammatory reaction mainly include infiltration of immune cells (such as macrophages, neutrophils, T cells, B cells, etc) and release of inflammatory factors (such as IL-1β, IL-6, TNF-α, etc.) at the bone defects, which subsequently affect the step-wised process of bone healing rejuvenation. Hence, advanced bone biomaterials with immunomodulatory properties is of great significance for the treatment of patients with recalcitrant bone defects, especially for delayed healing or non-union. The reciprocal mechanism of immuno-modulated bone healing, however, is not fully understood and more research is required in the future.
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Affiliation(s)
- Yaping Ma
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi 563000, China
| | - Weiqun Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Dingmei Zhang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi 563000, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Xin Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi 563000, China.*Corresponding author, E-mail:
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Zeng Z, Zhang D, Zeng FL, Ao J. Posterior unilateral small fenestration of lamina combined with a custom-made Y-shaped fracture reduction device for the treatment of severe thoracolumbar burst fracture: a prospective comparative study. J Orthop Surg Res 2023; 18:529. [PMID: 37491312 PMCID: PMC10369761 DOI: 10.1186/s13018-023-03971-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 07/03/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND The purpose was to evaluate the clinical effect of a custom-made Y-shaped fracture fragment reduction device and to assist in posterior unilateral small fenestration of lamina to reduce the fracture fragments. METHODS In this study, 40 patients were assigned to one of two groups: the traditional reduction device group (TRG) or the Y-shaped reduction device group (YRG). All patients underwent posterior unilateral small fenestration of the lamina and direct decompression through the spinal canal. And the operation time (OT), intraoperative bleeding (IB), preoperative, postoperative, and final follow-up data on the spinal stenosis rate (SSR), Cobb angle, the anterior compression ratio of injured vertebrae (ACRIV), and ASIA neurological function grade were compared between the two groups. RESULT There were no complications, including vascular and nerve injury, serious postoperative infection, internal fixation fracture, or loosening, for any of the patients. And the average follow-up time of the two groups was 14.2 months, the average operation time of the TRG was 236.6 min, and the average intraoperative blood loss was 357.20 ml. Moreover, the average operation time of the YRG was 190.6 min, and the average intraoperative blood loss was 241.5 ml. There were significant differences between the two groups in terms of operation duration and intraoperative blood loss. The YRG's was lower than that of the TRG. Besides, there was no difference in SSR, Cobb angle, ACRIV, or neurological recovery between the two groups before or immediately after the operation or at the last follow-up. CONCLUSION The Y-shaped fracture reduction device can reduce the fracture fragments and the OT and IB stably; it also has satisfactory postoperative curative effects and clinical utility.
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Affiliation(s)
- Zheng Zeng
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Dan Zhang
- Department of Nursing, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Fen-Lian Zeng
- Department of Nursing, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Tian X, Ao J, Ma Z, Ma C, Shi J. An Internal Defect Detection Algorithm for Concrete Blocks Based on Local Mean Decomposition-Singular Value Decomposition and Weighted Spatial-Spectral Entropy. Entropy (Basel) 2023; 25:1034. [PMID: 37509981 PMCID: PMC10378449 DOI: 10.3390/e25071034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023]
Abstract
Within the scope of concrete internal defect detection via laser Doppler vibrometry (LDV), the acquired signals frequently suffer from low signal-to-noise ratios (SNR) due to the heterogeneity of the concrete's material properties and its rough surface structure. Consequently, these factors make the defect signal characteristics challenging to discern precisely. In response to this challenge, we propose an internal defect detection algorithm that incorporates local mean decomposition-singular value decomposition (LMD-SVD) and weighted spatial-spectral entropy (WSSE). Initially, the LDV vibration signal undergoes denoising via LMD and the SVD algorithms to reduce noise interference. Subsequently, the distribution of each frequency in the scan plane is analyzed utilizing the WSSE algorithm. Since the vibrational energy of the frequencies caused by the defect resonance is concentrated in the defect region, its energy distribution in the scan plane is non-uniform, resulting in a significant difference between the defect resonance frequencies' SSE values and the other frequencies' SSE values. This feature is used to estimate the resonant frequencies of internal defects. Ultimately, the defects are characterized based on the modal vibration patterns of the defect resonant frequencies. Tests were performed on two concrete blocks with simulated cavity defects, using an ultrasonic transducer as the excitation device to generate ultrasonic vibrations directly from the back of the blocks and applying an LDV as the acquisition device to collect vibration signals from their front sides. The results demonstrate the algorithm's capacity to effectively pinpoint the information on the location and shape of shallow defects within the concrete, underscoring its practical significance for concrete internal defect detection in practical engineering scenarios.
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Affiliation(s)
- Xu Tian
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
| | - Jun Ao
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
| | - Zizhu Ma
- Pengcheng Laboratory, Shenzhen 518000, China
| | - Chunbo Ma
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
| | - Junjie Shi
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
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Qian H, Yao Q, Pi L, Ao J, Lei P, Hu Y. Current Advances and Applications of Tantalum Element in Infected Bone Defects. ACS Biomater Sci Eng 2023; 9:1-19. [PMID: 36563349 DOI: 10.1021/acsbiomaterials.2c00884] [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] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Infected bone defects (IBDs) cause significant economic and psychological burdens, posing a huge challenge to clinical orthopedic surgeons. Traditional approaches for managing IBDs possess inevitable shortcomings; therefore, it is necessary to develop new functionalized scaffolds. Tantalum (Ta) has been widely used in load-bearing orthopedic implants due to its good biocompatibility and corrosion resistance. However, undecorated Ta could only structurally repair common bone defects, which failed to meet the clinical needs of bacteriostasis for IBDs. Researchers have made great efforts to functionalize Ta scaffolds to enhance their antibacterial activity through various methods, including surface coating, alloying, and micro- and nanostructure modifications. Additionally, several studies have successfully utilized Ta to modify orthopedic scaffolds for enhanced antibacterial function. These studies remarkably extended the application range of Ta. Therefore, this review systematically outlines the advances in the fundamental and clinical application of Ta in the treatment of IBDs, focusing on the antibacterial properties of Ta, its functionalization for bacteriostasis, and its applications in the modification of orthopedic scaffolds. This study provides researchers with an overview of the application of Ta in the treatment of IBDs.
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Affiliation(s)
- Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Qingshuang Yao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Lanping Pi
- Nursing Department, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Pengfei Lei
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310030, China
| | - Yihe Hu
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310030, China
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Qian H, He L, Ye Z, Wei Z, Ao J. Decellularized matrix for repairing intervertebral disc degeneration: Fabrication methods, applications and animal models. Mater Today Bio 2022; 18:100523. [PMID: 36590980 PMCID: PMC9800636 DOI: 10.1016/j.mtbio.2022.100523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Intervertebral disc degeneration (IDD)-induced low back pain significantly influences the quality of life, placing a burden on public health systems worldwide. Currently available therapeutic strategies, such as conservative or operative treatment, cannot effectively restore intervertebral disc (IVD) function. Decellularized matrix (DCM) is a tissue-engineered biomaterial fabricated using physical, chemical, and enzymatic technologies to eliminate cells and antigens. By contrast, the extracellular matrix (ECM), including collagen and glycosaminoglycans, which are well retained, have been extensively studied in IVD regeneration. DCM inherits the native architecture and specific-differentiation induction ability of IVD and has demonstrated effectiveness in IVD regeneration in vitro and in vivo. Moreover, significant improvements have been achieved in the preparation process, mechanistic insights, and application of DCM for IDD repair. Herein, we comprehensively summarize and provide an overview of the roles and applications of DCM for IDD repair based on the existing evidence to shed a novel light on the clinical treatment of IDD.
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Key Words
- (3D), three-dimensional
- (AF), annular fibers
- (AFSC), AF stem cells
- (APNP), acellular hydrogel descendent from porcine NP
- (DAF-G), decellularized AF hydrogel
- (DAPI), 4,6-diamidino-2-phenylindole
- (DCM), decellularized matrix
- (DET), detergent-enzymatic treatment
- (DWJM), Wharton's jelly matrix
- (ECM), extracellular matrix
- (EVs), extracellular vesicles
- (Exos), exosome
- (IDD), intervertebral disc degeneration
- (IVD), intervertebral disc
- (LBP), Low back pain
- (NP), nucleus pulposus
- (NPCS), NP-based cell delivery system
- (PEGDA/DAFM), polyethylene glycol diacrylate/decellularized AF matrix
- (SD), sodium deoxycholate
- (SDS), sodium dodecyl sulfate
- (SIS), small intestinal submucosa
- (TGF), transforming growth factor
- (bFGF), basic fibroblast growth factor
- (hADSCs), human adipose-derived stem cells
- (hDF), human dermal fibroblast
- (iAF), inner annular fibers
- (oAF), outer annular fibers
- (sGAG), sulfated glycosaminoglycan
- Decellularized matrix
- Intervertebral disc degeneration
- Regenerative medicine
- Tissue engineering
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Affiliation(s)
- Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Li He
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhimin Ye
- Department of Pathology, School of Basic Medical Sciences, Central South University, Changsha, China
- Corresponding author. Department of Pathology, School of Basic Medical Sciences, Central South University, Changsha, 410000, China.
| | - Zairong Wei
- Department of Burns and Plastic Surgery, The Affiliated Hospital of Zunyi Medical College, Zunyi, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Corresponding author. Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Zunyi, 563000, China.
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Jian B, Ma C, Zhu D, Huang Q, Ao J. Water-Air Interface Imaging: Recovering the Images Distorted by Surface Waves via an Efficient Registration Algorithm. Entropy (Basel) 2022; 24:1765. [PMID: 36554170 PMCID: PMC9777829 DOI: 10.3390/e24121765] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Imaging through the wavy water-air interface is challenging since the random fluctuations of water will cause complex geometric distortion and motion blur in the images, seriously affecting the effective identification of the monitored object. Considering the problems of image recovery accuracy and computational efficiency, an efficient reconstruction scheme that combines lucky-patch search and image registration technologies was proposed in this paper. Firstly, a high-quality reference frame is rebuilt using a lucky-patch search strategy. Then an iterative registration algorithm is employed to remove severe geometric distortions by registering warped frames to the reference frame. During the registration process, we integrate JADE and LBFGS algorithms as an optimization strategy to expedite the control parameter optimization process. Finally, the registered frames are refined using PCA and the lucky-patch search algorithm to remove residual distortions and random noise. Experimental results demonstrate that the proposed method significantly outperforms the state-of-the-art methods in terms of sharpness and contrast.
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Affiliation(s)
- Bijian Jian
- School of Information and Communication, Guilin University of Electronic Technology, Guilin 541000, China
- School of Artificial Intelligence, Hezhou University, Hezhou 542800, China
| | - Chunbo Ma
- School of Information and Communication, Guilin University of Electronic Technology, Guilin 541000, China
| | - Dejian Zhu
- School of Information and Communication, Guilin University of Electronic Technology, Guilin 541000, China
| | - Qihong Huang
- School of Information and Communication, Guilin University of Electronic Technology, Guilin 541000, China
| | - Jun Ao
- School of Information and Communication, Guilin University of Electronic Technology, Guilin 541000, China
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12
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Zhang B, Zhou Y, Zou H, Lu Z, Wang X, Ao J. A comparative study on efficacies of posterior microscopic mini-open and open technique for thoracolumbar burst fractures with severe traumatic spinal stenosis. J Orthop Surg Res 2022; 17:518. [PMID: 36456998 PMCID: PMC9714112 DOI: 10.1186/s13018-022-03412-x] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 11/18/2022] [Indexed: 12/05/2022] Open
Abstract
PURPOSE This study compares the efficacies of minimally invasive decompression by posterior microscopic mini-open technique combined with percutaneous pedicle fixation (hereafter MOT) to traditional open surgery in patients with severe traumatic spinal canal stenosis resulting from Arbeitsgemeinschaft für Osteosynthesefragen (AO) type A3 or A4 thoracolumbar burst fractures and provides references for clinical treatment. METHODS In total, 133 patients with severe traumatic spinal canal stenosis caused by AO type A3 or A4 thoracolumbar burst fractures who underwent MOT (group A) or traditional open surgery (group B) were retrospectively enrolled. The demographic and radiological data of the two groups were analyzed and compared. RESULTS A total of 64 patients were finally recruited in this study. There were no significant differences in gender, age, follow-up time, injury mechanism, injury level, AO classification, American Spinal Injury Association (ASIA) score, visual analogue scale (VAS) score, and duration of hospital stay between the two groups (P > 0.05). After the procedures, the prevertebral height ratio (PHR), the Cobb angle, and the mid-sagittal canal diameter compression ratio (MSDCR) were significantly improved (P < 0.05) in both groups. However, group A demonstrated less intraoperative bleeding and a greater VAS score improvement postoperatively and at the last follow-up but involved a longer operation time (P < 0.05). The PHR and the Cobb angle in the two groups showed no significant difference postoperatively and at the last follow-up (P > 0.05). In contrast, a significant improvement in MSDCR was observed at the last follow-up when compared with the postoperative value (P < 0.05). However, the Cobb angle in group A was better maintained than in group B at the last follow-up (P < 0.05), while the MSDCR in group B demonstrated a greater improvement at the last follow-up than in group A (P < 0.05). CONCLUSIONS Both the MOT and traditional open surgery are effective treatment options for AO type A3 and A4 thoracolumbar burst fractures with severe traumatic spinal stenosis. The advantages of MOT include the minimally invasive procedure, extremely fine spinal canal decompression, less intraoperative bleeding, and significant pain relief. We suggest that MOT should be preferentially performed for AO type A3 or A4 thoracolumbar burst fractures with severe traumatic spinal stenosis.
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Affiliation(s)
- Bin Zhang
- Department of Orthopaedics, Guizhou Province Osteological Hospital, 123 Shachong South Road, Guiyang, 550002 Guizhou Province People’s Republic of China
| | - Yanna Zhou
- grid.417409.f0000 0001 0240 6969Department of Epidemiology and Statistics, School of Public Health, Zunyi Medical University, Zunyi, 563000 Guizhou Province People’s Republic of China
| | - Hua Zou
- Department of Orthopaedics, Guizhou Aerospace Hospital, Zunyi, 563000 Guizhou Province People’s Republic of China
| | - Zimo Lu
- grid.413390.c0000 0004 1757 6938Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000 Guizhou Province People’s Republic of China
| | - Xin Wang
- grid.413390.c0000 0004 1757 6938Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000 Guizhou Province People’s Republic of China
| | - Jun Ao
- grid.413390.c0000 0004 1757 6938Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000 Guizhou Province People’s Republic of China
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Fu SP, Chen SY, Pang QM, Zhang M, Wu XC, Wan X, Wan WH, Ao J, Zhang T. Advances in the research of the role of macrophage/microglia polarization-mediated inflammatory response in spinal cord injury. Front Immunol 2022; 13:1014013. [PMID: 36532022 PMCID: PMC9751019 DOI: 10.3389/fimmu.2022.1014013] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/18/2022] [Indexed: 12/04/2022] Open
Abstract
It is often difficult to regain neurological function following spinal cord injury (SCI). Neuroinflammation is thought to be responsible for this failure. Regulating the inflammatory response post-SCI may contribute to the recovery of neurological function. Over the past few decades, studies have found that macrophages/microglia are one of the primary effector cells in the inflammatory response following SCI. Growing evidence has documented that macrophages/microglia are plastic cells that can polarize in response to microenvironmental signals into M1 and M2 macrophages/microglia. M1 produces pro-inflammatory cytokines to induce inflammation and worsen tissue damage, while M2 has anti-inflammatory activities in wound healing and tissue regeneration. Recent studies have indicated that the transition from the M1 to the M2 phenotype of macrophage/microglia supports the regression of inflammation and tissue repair. Here, we will review the role of the inflammatory response and macrophages/microglia in SCI and repair. In addition, we will discuss potential molecular mechanisms that induce macrophage/microglia polarization, with emphasis on neuroprotective therapies that modulate macrophage/microglia polarization, which will provide new insights into therapeutic strategies for SCI.
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Affiliation(s)
- Sheng-Ping Fu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China,Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Si-Yu Chen
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qi-Ming Pang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Meng Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Xiang-Chong Wu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Xue Wan
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China,Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Wei-Hong Wan
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China,Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China,Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China,Collaborative Innovation Center of Chinese Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China,The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China,*Correspondence: Tao Zhang,
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Qian H, Ye Z, Pi L, Ao J. Roles and current applications of S-nitrosoglutathione in anti-infective biomaterials. Mater Today Bio 2022; 16:100419. [PMID: 36105674 PMCID: PMC9465324 DOI: 10.1016/j.mtbio.2022.100419] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022]
Abstract
Bacterial infections can compromise the physical and biological functionalities of humans and pose a huge economical and psychological burden on infected patients. Nitric oxide (NO) is a broad-spectrum antimicrobial agent, whose mechanism of action is not affected by bacterial resistance. S-nitrosoglutathione (GSNO), an endogenous donor and carrier of NO, has gained increasing attention because of its potent antibacterial activity and efficient biocompatibility. Significant breakthroughs have been made in the application of GSNO in biomaterials. This review is based on the existing evidence that comprehensively summarizes the progress of antimicrobial GSNO applications focusing on their anti-infective performance, underlying antibacterial mechanisms, and application in anti-infective biomaterials. We provide an accurate overview of the roles and applications of GSNO in antibacterial biomaterials and shed new light on the avenues for future studies.
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Key Words
- A.baumannii, Acinetobacter baumannii
- AgNPs, Silver nanoparticles
- Antibacterial property
- BMSCs, Bone marrow stem cells
- Bacterial resistance
- Biomaterials
- C.albicans, Candida albicans
- CS/GE, Chitosan/gelatin
- Cu, copper
- DMSO, Dimethyl sulfoxide
- DPA, Diethylenetriamine pentaacetic acid
- E. coli, Escherichia coli
- E.tenella, Eimeria tenella
- ECC, Extracorporeal circulation
- ECM, Experimental cerebral malaria
- GSNO, S-Nitrosoglutathione
- GSNOR, S-Nitrosoglutathione Reductase
- H.pylori, Helicobacter pylori
- HCC, Human cervical carcinoma
- HDFs, Human dermal fibroblasts
- HUVEC, Human umbilical vein endothelial cells
- ICR, Imprinted control region
- Infection
- K.Pneumonia, Klebsiella Pneumonia
- L.amazonensis, Leishmania amazonensis
- L.major, Leishmania major
- M.Tuberculosis, Mycobacterium tuberculosis
- M.smegmatis, Mycobacterium smegmatis
- MOF, Metal–organic framework
- MRPA, Multidrug-resistant Pseudomonas aeruginosa
- MRSA, Methicillin resistant Staphylococcus aureus
- N. gonorrhoeae, Neisseria gonorrhoeae
- N.meningitidis, Neisseria meningitidis
- NA, Not available
- NO-np, NO-releasing nanoparticulate platform
- NP, Nanoparticle
- P.aeruginosa, Pseudomonas aeruginosa
- P.berghei, Plasmodium berghei
- P.mirabilis, Proteus mirabilis
- PCL, Polycaprolactone
- PCVAD, Porcine circovirus-associated disease
- PDA-GSNO NPs, Polydopamine nanoparticles containing GSNO
- PDAM@Cu, polydopamine based copper coatings
- PEG, polyethylene glycol
- PHB, polyhydroxybutyrate
- PLA, polylactic acid
- PLGA, poly(lactic-co-glycolic acid)
- PTT, Photothermal therapy
- PVA, poly(vinyl alcohol)
- PVA/PEG, poly(vinyl alcohol)/poly(ethylene glycol)
- PVC, poly(vinyl chloride)
- S-nitrosoglutathione
- S. typhimurium, Salmonella typhimurium
- S.aureus, Staphylococcus aureus
- S.epidermidis, Staphylococcus epidermidis
- S.pneumoniae, Streptococcus pneumoniae
- SAKI, Septic acute kidney injury
- SCI, Spinal cord slices
- Se, Selenium
- Sp3, Specificity proteins 3
- TDC, Tunneled dialysis catheters
- TMOS, Tetramethylorthosilicate
- ZnO, Zinc oxide
- cftr, cystic fibrosis transmembrane conductance regulatory gene
- d, day
- h, hour
- min, minute
- pSiNPs, porous silicon nanoparticles
- w, week
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Affiliation(s)
- Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhimin Ye
- Department of Pathology, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Lanping Pi
- Nursing Department, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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15
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Tian X, Ao J, Ma Z, Jian B, Ma C. Concrete Multi-Type Defect Classification Algorithm Based on MSSMA-SVM. Sensors (Basel) 2022; 22:9145. [PMID: 36501847 PMCID: PMC9736279 DOI: 10.3390/s22239145] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
In order to realize the automatic classification of internal defects for non-contact nondestructive testing of concrete, a concrete multi-type defect classification algorithm based on the mixed strategy slime mold algorithm support vector machine (MSSMA-SVM) was proposed. The concrete surface's vibration signal was obtained using a laser Doppler vibrometer (LDV) for four classification targets for no defect, segregation, cavity, and foreign matter concrete classification targets. The wavelet packet transform (WPT) decomposes the detected signals to get information on different frequency bands. The energy ratio change rate, energy ratio, and wavelet packet singular entropy of each node after the WPT were used as the feature input of MSSMA-SVM. The experimental results show that the designed MSSMA-SVM classifier can accurately detect the type, which provides a practical algorithm for classifying concrete defects by laser vibration measurement.
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Affiliation(s)
- Xu Tian
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
| | - Jun Ao
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
| | - Zizhu Ma
- Pengcheng Laboratory, Shenzhen 322099, China
| | - Bijian Jian
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
| | - Chunbo Ma
- Research Institute of Optical Communication, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China
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16
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Li TT, Wei Y, Zhou HS, Xiao QX, Wang C, Xiong LL, Ao J, Wang TH, Yuan H. The Difference of Disease Injury and Postoperative Recovery in the Occupational Characteristics of Thoracolumbar Fracture Patients: A Retrospective Study. Orthop Surg 2022; 14:2059-2072. [PMID: 35913219 PMCID: PMC9483088 DOI: 10.1111/os.13403] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 06/20/2022] [Accepted: 06/23/2022] [Indexed: 02/05/2023] Open
Abstract
Objectives Understanding the occupational characteristics of patients is not only related to patients' life and health, but also conducive to improving their happiness. However, there were no studies that had been conducted on the relationship between occupation characteristic and postoperative recovery in patients with spinal fractures. The purpose of this study was to explore the relationship between the occupation characteristics of patients with thoracolumbar fracture and the characteristics of disease injury, treatment, and recovery so as to reduce the incidence and improve postoperative rehabilitation. Methods Patients (n = 719) with thoracolumbar fractures were recruited. Patients were grouped according to the characteristic of occupations: unemployed group (n = 299), white‐collar worker group (n = 20), and blue‐collar worker group (n = 400). Data were collected, including the characteristics, injury and treatment information, and the recovery records for 1 year after operation. One‐way ANOVA analysis, χ2 test, and binary logistic regression analysis was used to explore the relationship among these factors. Results Male, high‐falling injuries and single segment injury (mainly T 11, T 12 and L2) were common in patients with thoracolumbar fractures, especially in the blue‐collar worker group (70.8%, 78.3%, and 85.4%). Compared with the unemployed group, the patients in the white‐collar worker group and blue‐collar worker group had a higher proportion of young patients, a higher height and weight, a lesser rate of hypertension or diabetes. One week after injury, 73.4% of patients underwent surgery, with the blue‐collar worker group accounted for the largest proportion. One month after surgery, 77.1% of patients were able to get out of bed, with the white‐collar worker group accounted for the largest proportion. In the postoperative recovery information, patients in the blue‐collar worker group were more likely to have severe low back pain (OR = 2.023, 95% CI: 1.440‐2.284) and pain‐disturbed sleep (OR = 2.287, 95% CI: 1.585‐3.299) than those who in the unemployed group. Conclusions Blue‐collar workers, with a high risk of thoracolumbar fracture, have a higher incidence of low back leg pain and pain‐disturbed sleep in the recovery after thoracolumbar fracture surgery, and this requires more attention.
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Affiliation(s)
- Ting-Ting Li
- Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Anesthesiology, Institute of Neurological Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Wei
- Gynecology Department, Chengdu Second People's Hospital, Chengdu, China
| | - Hong-Su Zhou
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Qiu-Xia Xiao
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Chong Wang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Liu-Lin Xiong
- Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jun Ao
- Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Ting-Hua Wang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Anesthesiology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Institue of Neuroscience, Animal Zoology Department, Kunming Medical University, Kunming, China
| | - Hao Yuan
- Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Institue of Neuroscience, Animal Zoology Department, Kunming Medical University, Kunming, China
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Yuan H, Pi Y, Wang C, Ma JS, Liu S, Ao J. Surgical treatment was desirable to improve neuromuscular function in patients with sustained 3 years fracture-dislocation of lower cervical spine: A case report. Ibrain 2022; 9:473-478. [PMID: 38680512 PMCID: PMC11045180 DOI: 10.1002/ibra.12054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 05/01/2024]
Abstract
To investigate the changes in neuromuscular function of anterior approach combined with subtotal vertebral body resection and titanium mesh cage (TMC) internal fixation for the old fracture-dislocated lower cervical spine. A 56-year-old female was admitted to the hospital with neck pain and numbness of the left upper extremity for 3 years due to a fall injury from a height, which worsened for 20 days. Although 3 years had passed, the patient still had significant left limb numbness and decreased muscle strength. Eventually, the patient was diagnosed with the old fracture-dislocation type injury of C6 and C7. C6 was II-degree anterior dislocation and the bilateral joint process was locked, C7 was burst fracture, and C5 was spinal cord segment injury. Then, the operation of the anterior approach combined with subtotal vertebral body resection and TMC internal fixation was performed under general anesthesia. Postoperative symptoms were significantly improved. And during five-year of follow-up, no adverse reactions and complications were reported. Although cervical fracture and dislocation combined with cervical spinal cord injury had persisted for many years, surgical treatment was necessary. The anterior approach combined with subtotal vertebral body resection and TMC internal fixation was desirable to improve neuromuscular function for the old fracture-dislocation of the lower cervical spine, which has some guiding effects on the clinical treatment.
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Affiliation(s)
- Hao Yuan
- Department of Orthopaedic SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Yu Pi
- Department of AnesthesiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Chong Wang
- Department of Orthopaedic SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Jin‐Cheng Si Ma
- Department of Orthopaedic SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Sheng Liu
- Pharmacology InstituteHeidelberg UniversityHeidelbergGermany
| | - Jun Ao
- Department of Orthopaedic SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
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18
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Pang QM, Qian NN, Zou WH, Yang YC, Chen H, Zhang M, Zhang Q, Ao J, Zhang T. PBMSCs transplantation facilitates functional recovery after spinal cord injury by regulating microglia/macrophages plasticity. Transpl Immunol 2022; 72:101592. [DOI: 10.1016/j.trim.2022.101592] [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] [Received: 02/28/2022] [Accepted: 03/26/2022] [Indexed: 10/18/2022]
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Zhou H, Pi Y, Wang C, Ao J, Sun L, Yuan H. Traumatic spinal cord injury caused by a dagger in the spine: A case report. Ibrain 2022; 8:406-412. [PMID: 37786744 PMCID: PMC10528766 DOI: 10.1002/ibra.12031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/12/2022] [Accepted: 03/07/2022] [Indexed: 10/04/2023]
Abstract
Acute traumatic spinal cord injury (SCI) combined with foreign matter retention is rare in the clinic, which causes less literature reported, browsed, and analyzed. A 36-year-old male was rushed to our institution due to an attack on the back. His superficial sensation below the nipple had disappeared (mainly in the left breast), the proprioception of both lower limbs was obviously decreased, and the muscle strength of the left lower limb was level 0 and that of the right lower limb was level 3. Computed tomography of the thoracic vertebrae showed that the dagger had completely pierced into the T9 vertebral body and the spinal canal. Prehospital transport: the spinal cord may be injured again due to the movement of the remaining foreign matter and the posture of the patients while they are being transported. Pathophysiology: the incidence of incomplete SCI is higher than that of other types of SCI. Imaging examination: magnetic resonance imaging might cause unexpected secondary injuries. Treatments: surgical intervention including removal of foreign matter and decompression is an essential and important measure for recovery of neurological function. Patients could benefit from administration of methylprednisolone.
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Affiliation(s)
- Hong‐Su Zhou
- Department of AnesthesiologyAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Yu Pi
- National Traditional Chinese Medicine Clinical Research Base and Western Medicine Translational Medicine Research CenterSouth West Medical UniversityLuzhouChina
| | - Chong Wang
- Department of Spine SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Jun Ao
- Department of Spine SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Lv Sun
- Department of Spine SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Hao Yuan
- Department of Spine SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
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Pang QM, Chen SY, Fu SP, Zhou H, Zhang Q, Ao J, Luo XP, Zhang T. Regulatory Role of Mesenchymal Stem Cells on Secondary Inflammation in Spinal Cord Injury. J Inflamm Res 2022; 15:573-593. [PMID: 35115806 PMCID: PMC8802142 DOI: 10.2147/jir.s349572] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/24/2021] [Indexed: 12/13/2022] Open
Affiliation(s)
- Qi-Ming Pang
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Si-Yu Chen
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Sheng-Ping Fu
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Hui Zhou
- The First School of Clinical Medicine, Zunyi Medical University, Zunyi, People’s Republic of China
| | - Qian Zhang
- Department of Human Anatomy, Zunyi Medical University, Zunyi, People’s Republic of China
| | - Jun Ao
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Xiao-Ping Luo
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical University, Zunyi, People’s Republic of China
- Correspondence: Tao Zhang; Qian Zhang, Email ;
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Xin Z, Kong W, Cai M, Du Q, Liu L, He J, Qin J, Wang A, Ao J, Liao W. Translaminar Osseous Channel-Assisted Full-Endoscopic Flavectomy Decompression of Thoracic Myelopathy Caused by Ossification of the Ligamentum Flavum: Surgical Technique and Results. Pain Physician 2020; 23:E475-E486. [PMID: 32967398] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Previous surgical procedures for the treatment of thoracic myelopathy (TM) due to ossification of the ligamentum flavum (OLF) were accompanied by significant trauma and risk. OBJECTIVES Report a novel minimally invasive technique, translaminar osseous channel-assisted posterior percutaneous full-endoscopic flavectomy (p-PEF), as an alternative surgical strategy for the treatment of OLF-related TM. STUDY DESIGN A retrospective cohort study. SETTING A center for spine surgery and pain medicine. METHODS Thirteen patients with TM caused by isolated OLF who underwent translaminar osseous channel-assisted p-PEF were retrospectively analyzed. Preoperative and postoperative radiographic findings and clinical results were compared to confirm the efficacy of the procedure and perioperative complications were investigated to evaluate the technical safety. RESULTS All 13 patients with 23 isolated ossified sites were successfully treated with the translaminar osseous channel-assisted p-PEF technique and no additional internal fixation was needed. With an average follow-up of 29.2 months (range, 24-36 months), no local instability was detected. The preoperative and final follow-up cross-sectional area of the stenotic dural sac was 47.87 ± 8.98 mm2 and 130.47± 19.07 mm2, respectively (P < 0.0001). The mean modified Japanese Orthopaedic Association score was significantly improved from 3.54 ± 1.26 points preoperatively to 9.07 ± 1.48 points at final follow-up (P < 0.0001). The Visual Analog Scale scores of thoracolumbar backaches were 5.3 ± 1.2 before surgery and 0.69 ± 0.75 at final follow-up (P = 0.001). No serious complications ensued. LIMITATIONS This was a retrospective study with several limitations, including the lack of a control group, small number of included samples and unavoidable nature of the single-center study design. CONCLUSIONS Translaminar osseous channel-assisted p-PEF technique, with less tissue trauma and impact on the stability of the spine, can provide adequate decompression and satisfying outcomes in the treatment of OLF-related TM and should be considered as an alternative procedure for isolated OLF.
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Affiliation(s)
- Zhijun Xin
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Weijun Kong
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Menghan Cai
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Qian Du
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Lei Liu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jialin He
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jianpu Qin
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Ansu Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wenbo Liao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
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Wang X, Ao J, Lu H, Zhao Q, Ma Y, Zhang J, Ren H, Zhang Y. Osteoimmune Modulation and Guided Osteogenesis Promoted by Barrier Membranes Incorporated with S-Nitrosoglutathione (GSNO) and Mesenchymal Stem Cell-Derived Exosomes. Int J Nanomedicine 2020; 15:3483-3496. [PMID: 32523344 PMCID: PMC7237116 DOI: 10.2147/ijn.s248741] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/05/2020] [Indexed: 12/11/2022] Open
Abstract
Background The use of polycaprolactone (PCL) for bone defects in a clinical setting is limited due to a lack of bioactivity. Exosomes derived from mesenchymal stem cells (MSCs) have an important immunoregulatory potential and together with S-nitrosoglutathione (GSNO) they possess therapeutic potential for bone regeneration. Materials and Methods In this study, PCL was modified with GSNO and MSC-derived exosomes and the impact on macrophages and osteogenes is evaluated. Results MSC-derived exosomes exhibited a cup-shaped morphology and were internalized by macrophages and human bone marrow-derived mesenchymal stromal cells (hBMSCs). The pattern of internalization of scaffold-immobilized exosomes was similar in RAW264.7 cells and hBMSCs after 4h and 24h of co-culture. Assessment of macrophage morphology under inflammatory conditions by scanning electronic microscopy (SEM) and confocal microscopy demonstrated macrophages were significantly elongated and expression of pro-inflammatory genes markedly decreased when co-cultured with PCL/PDA + GSNO + exosome scaffolds. Furthermore, this scaffold modification significantly enhanced osteogenic differentiation of hBMSCs. Discussion This study demonstrated the possibility of using a GSNO- and exosome-based strategy to adapt barrier membrane scaffolds. PCL/PDA + GSNO + exosome scaffolds may serve as an important barrier membrane for osteogenesis and tissue regeneration.
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Affiliation(s)
- Xin Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
| | - Haiping Lu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
| | - Qingyu Zhao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
| | - Yaping Ma
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
| | - Jun Zhang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
| | - Hao Ren
- Shenzhen Institute for Innovation and Translational Medicine, Shenzhen International Biological Valley-Life Science Industrial Park, Shenzhen, Guangdong 518119, People's Republic of China
| | - Yi Zhang
- Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China.,Department of Hygiene Toxicology, School of Public Health, Zunyi Medical University, Zunyi 563000, Guizhou, People's Republic of China
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Xin Z, Cai M, Ji W, Chen L, Kong W, Li J, Qin J, Wang A, Ao J, Liao W. [Percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for lumbar spinal stenosis]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019; 33:822-830. [PMID: 31297998 PMCID: PMC8337427 DOI: 10.7507/1002-1892.201904005] [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] [Received: 04/01/2019] [Revised: 05/29/2019] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To design the surgical strategy of percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for bilateral lumbar spinal stenosis (LSS) and to evaluate the effectiveness. METHODS The percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for bilateral LSS was designed according to the pathological features of LSS. The technique was used to treat 42 patients with LSS between January 2016 and January 2018. There were 18 males and 24 females with an average age of 61.7 years (range, 46-81 years). The duration of symptoms was 1-20 years, with an average of 9.7 years. The surgical segment at L 4, 5 were 27 cases, at L 5, S 1 were 15 cases. The operation time and perioperative complications were recorded. Lumbar X-ray, CT, and MRI examinations were performed at 1 week, 3 months, and 1 year after operation. Visual analogue scale (VAS) score was used to evaluate the low back pain and leg pain, Oswestry disability index (ODI) was used to evaluate the lumbar function, and single continuous walking distance (SCWD) was used to evaluate lower extremity nerve function. The clinical efficacy was evaluated by MacNab criteria at 1 year after operation. RESULTS All patients underwent surgery successfully. The operation time was 68-141 minutes with an average of 98.2 minutes. All 42 patients were followed up 12-24 months with an average of 18.8 months. There were 2 cases of dural tears during operation, and 1 case of transient dysfunction of the lower limbs of the decompression channel after operation. All of them were cured after corresponding treatment. No serious complications such as death, major bleeding, or irreversible nerve injury occurred during follow-up. No segmental instability was found according to postoperative lumbar hyperextension and flexion X-ray films, and postoperative CT and MRI imaging showed that the stenotic lumbar spinal canal was significantly enlarged, and the compression of the nerve root was sufficient. The VAS score of low back pain and leg pain, ODI score, and SCWD at each time point after operation were significantly improved when compared with those before operation ( P<0.05); the indexes were significantly improved over time after operation, and the differences were significantly ( P<0.05). The clinical efficacy was evaluated by MacNab standard at 1 year after operation, and the results were excellent in 18 cases, good in 20 cases, fair in 3 cases, and poor in 1 case. The excellent and good rate was 90.5%. CONCLUSION The percutaneous full-endoscopic bilateral decompression via unilateral posterior approach for LSS is a safe and effective procedure. A well-designed surgical strategy and mastery of its technical points are important guarantees for successful operation and satisfactory results.
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Affiliation(s)
- Zhijun Xin
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | | | - Wenjun Ji
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Lin Chen
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Weijun Kong
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Jin Li
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Jianpu Qin
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Ansu Wang
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Jun Ao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003, P.R.China
| | - Wenbo Liao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical Univerty, Zunyi Guizhou, 563003,
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Abstract
Copy-paste tampering is one of the most common image content attacking methods. Considering the low accuracy and high feature dimension of the existing algorithms, a normalized moment of inertia method is proposed in this paper to overcome these defects. In the phase of feature extracting, the algorithm first transforms the tested image using wavelet, and then selects the similar subbands to build overlapped blocks, finally uses Perceived Hash Algorithm (PHA) to make binarization processing for the subblocks and carries out the normalize moment of inertia of the subblocks which satisfy the coarse matching conditions between adjacent two lines after performing dictionary sorting. In feature matching phase, the algorithm first counts the similar subblocks whose shift is above the distance threshold, and then obtains the main shift vectors with specific frequencies, finally performs feature matching according to the difference of the normalized moment of inertia in the neighborhood. Experiment results illustrate that the proposed algorithm with lower feature dimension can efficiently improve the matching speed and accuracy. Furthermore, it has better robustness for some post-processing operations, such as compression, Gaussian Blur, adding Gaussian noise, etc.
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Affiliation(s)
- Chunbo Ma
- Guangxi Key Laboratory of Precision, Navigation Technology and Application, Guilin University of Electronic Technology, Guilin, Guangxi, P. R. China
| | - Xuewei Lv
- Guilin University of Electronic Technology, Guilin, Guangxi, P. R. China
| | - Jun Ao
- Guilin University of Electronic Technology, Guilin, Guangxi, P. R. China
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25
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Du Q, Lei LQ, Cao GR, Kong WJ, Ao J, Wang X, Wang AS, Liao WB. Percutaneous full-endoscopic anterior transcorporeal cervical discectomy and channel repair: a technique note report. BMC Musculoskelet Disord 2019; 20:280. [PMID: 31182078 PMCID: PMC6558825 DOI: 10.1186/s12891-019-2659-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 10/12/2018] [Accepted: 05/29/2019] [Indexed: 11/11/2022] Open
Abstract
Background Compared to anterior cervical discectomy and fusion (ACDF), cervical motion segment and disc was retained through anterior transcorporeal herniotomy (ATH). But surgical field and manipulation in traditional ATH was restricted by the narrow channel. Percutaneous full-endoscopic transdiscal cervical discectomy is a minimally invasive and functional spine surgery. However, significant loss of intervertebral disc height was inevitable. This study was done to illustrate the feasibility, safety, and efficacy and present our surgical experience of percutaneous full-endoscopic anterior transcorporeal cervical discectomy (PEATCD) and channel repair (CR) for the treatment of cervical disc herniation (CDH). Methods Four patients with CDH were chosen to undergo PEATCD and CR with a follow-up care for at least 22 months. The visual analogue score (VAS), Japanese Orthopedic Association (JOA), and modified Macnab criteria were recorded during the postoperative periods. CT images were obtained to observe the healing of the channel at 1 week and 3 months after the operation. Results The average operating time was 83.75 min. Drainage tubes were unnecessary. No procedure-related complications occurred. The postoperative VAS and JOA scores were improved compared to those of the preoperative assessment. The clinical efficacy was excellent in 3 patients and good in 1 patient at final follow up stage according to the modified Macnab criteria. The hernia was removed completely in all patients according to postoperative MRI. Migration of the repair implementation and collapse of the drilled vertebrae were not observed during the postoperative periods. The bony channel was nearly absent on CT images obtained at 3 months postoperative. Conclusion This is the first time that the anterior transcorporeal cervical discectomy and CR have been performed simultaneously under endoscopy. Less damage to disc and the retained cervical motion segment were achieved through this method. This is a feasible, safe, and minimally invasive procedure. Trial registration Numbers: ChiCTR1800016383. Registered 29 may 2018. Retrospectively registered. Trial registry: Chinese Clinical Trial Registry. Electronic supplementary material The online version of this article (10.1186/s12891-019-2659-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Qian Du
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Lan-Qiong Lei
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Guan-Ru Cao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Wei-Jun Kong
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Xin Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, 4059, Australia.,Translational Research Institute, School of Medicine, University of Queensland, Brisbane, Queensland, 4102, Australia
| | - An-Su Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Wen-Bo Liao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China. .,Joint Orthopaedic Research Center of Zunyi Medical University & University of Rochester Medical Center (JCMR-ZMU & URMC), Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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26
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Liu Y, Liu S, Li D, Zhang N, Peng L, Ao J, Song CE, Lan Y, Yan H. Kinetic Resolution of Allylic Alcohol with Chiral BINOL-Based Alkoxides: A Combination of Experimental and Theoretical Studies. J Am Chem Soc 2018; 141:1150-1159. [DOI: 10.1021/jacs.8b12796] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | | | | | | | | | | | - Choong Eui Song
- Department of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon, Gyeonggi 440-746, Korea
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Ao J, Tan C, Wei H, Jiang S, Peng J, Jin L. PSIV-16 Influences of Dietary Phytogenics on the Oxidation Stress, Feed Intake of Sows, and Piglet Performance. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.700] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Ao
- College of Animal Science and Technology, Huazhong Agricultural University,Wuhan, China (People’s Republic)
| | - C Tan
- College of Animal Science and Technology, Huazhong Agricultural University,Wuhan, China (People’s Republic)
| | - H Wei
- College of Animal Science and Technology, Huazhong Agricultural University,Wuhan, China (People’s Republic)
| | - S Jiang
- College of Animal Science and Technology, Huazhong Agricultural University,Wuhan, China (People’s Republic)
| | - J Peng
- College of Animal Science and Technology, Huazhong Agricultural University,Wuhan, China (People’s Republic)
| | - L Jin
- Guangzhou Meritech Bioengineering Co. Ltd,Guangdong, China (People’s Republic)
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Du Q, Wang X, Qin JP, Kong WJ, Cai YQ, Ao J, Friis T, Xu H, Liao WB. In Reply to the Letter to the Editor Regarding "Percutaneous Full-Endoscopic Anterior Transcorporeal Procedure for Cervical Disc Herniation: A Novel Procedure and Early Follow-Up Study". World Neurosurg 2018; 118:386. [PMID: 30248814 DOI: 10.1016/j.wneu.2018.07.028] [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] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 07/04/2018] [Indexed: 10/28/2022]
Affiliation(s)
- Qian Du
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Xin Wang
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia; Translational Research Institute, School of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Jian-Pu Qin
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wei-Jun Kong
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Yu-Qiang Cai
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Thor Friis
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Hao Xu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen-Bo Liao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China.
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Yang Z, Li R, Ao J, Wa QD, Zhang Y, Chen L, Wen J, Chen B, Pan W, Li B, Tian XB. miR-1307-3p suppresses the chondrogenic differentiation of human adipose-derived stem cells by targeting BMPR2. Int J Mol Med 2018; 42:3115-3124. [PMID: 30272255 PMCID: PMC6202098 DOI: 10.3892/ijmm.2018.3891] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 05/20/2018] [Accepted: 09/11/2018] [Indexed: 01/07/2023] Open
Abstract
MicroRNAs (miRs) are involved in several physiological processes, including chondrogenic differentiation, however, their expression and roles in the chondrogenic differentiation of human adipose-derived stem cells (hADSCs) remain to be fully elucidated to date. Our previous study showed that miR-1307-3p was significantly downregulated during chondrogenic differentiation by microarray and northern blot analysis. The present study aimed to investigate the effects of miR-1307-3p on chondrogenic differentiation and the underlying mechanisms. First, the decreased expression of miR-1307-3p was confirmed by reverse transcription-quantitative polymerase chain reaction analysis. Subsequently, gain- and loss-of-function of miR-1307-3p experiments showed that the overexpression of miR-1307-3p suppressed the deposition of cartilage matrix proteoglycans and decreased the expression of cartilage-related markers, including sex determining region Y-box 9, collagen type II α1 chain and aggrecan, whereas the knockdown of miR-1307-3p had the opposite effect. In addition, bone morphogenetic protein receptor type 2 (BMPR2) was identified as a target of miR-1307-3p. Further mechanistic investigations showed that miR-1307-3p attenuated the chondrogenic differentiation of hADSCs at least partly by inhibiting BMPR2-mothers against decapentaplegic signaling pathways. In conclusion, the findings revealed that miR-1307-3p inhibited the chondrogenic differentiation of hADSCs by targeting BMPR2 and its down-stream signaling pathway, which may provide novel therapeutic clues for the treatment of cartilage injury.
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Affiliation(s)
- Zhen Yang
- Medical College of Guizhou University, Guiyang, Guizhou 550025, P.R. China
| | - Rui Li
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Jun Ao
- Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563000, P.R. China
| | - Qing-De Wa
- Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563000, P.R. China
| | - Yi Zhang
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Long Chen
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Jing Wen
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Biao Chen
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Wei Pan
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Bo Li
- Guizhou Provincial People's Hospital (People's Hospital of Guizhou University), Guiyang, Guizhou 550002, P.R. China
| | - Xiao-Bin Tian
- Medical College of Guizhou University, Guiyang, Guizhou 550025, P.R. China
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Zhang B, Zou H, Kong W, Wang C, Wu F, Ye S, Wang X, Ao J. [Decompression by mini-open posterior approach assisted with microscope for thoracolumbar burst fracture with severe spinal canal stenosis]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018; 32:468-475. [PMID: 29806306 DOI: 10.7507/1002-1892.201711052] [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: 11/03/2022]
Abstract
Objective To investigate the effectiveness of posterior microscopic mini-open technique (MOT) decompression in patients with severe spinal canal stenosis resulting from thoracolumbar burst fractures. Methods The clinical data of 28 patients with severe spinal canal stenosis caused by thoracolumbar burst fractures, who were treated by posterior microscopic MOT, which performed unilateral or bilateral laminectomy, poking reduction, intervertebral bone graft via spinal canal, and percutaneous pedicle screw fixation between January 2014 and January 2016 were retrospectively analyzed. There were 21 males and 7 females with a mean age of 42.1 years (range, 16-61 years). The involved segments included T 11 in 1 case, T 12 in 4 cases, L 1 in 14 cases, and L 2 in 9 cases. According to AO classification, there were 19 cases of type A3, 9 of type A4. According to American Spinal Injury Association (ASIA) grading, 12 cases were grade C, 13 grade D, and 3 grade E. The time between injury and operation was 3-7 days (mean, 3.6 days). To evaluate effectiveness, the changes in the visual analogue scale (VAS), percentage of anterior height of injured vertebrae, Cobb angle, rate of spinal compromise (RSC), and ASIA grading were analyzed. Results All patients were performed procedures successfully. The operation time was 135-323 minutes (mean, 216.4 minutes). The intraoperative blood loss was 80-800 mL (mean, 197.7 mL). The hospitalization time was 10-25 days (mean, 12.5 days). The incisions healed primarily, without wound infection, cerebrospinal fluid leakage, or other early complications. All the 28 patients were followed up 12-24 months (mean, 16.5 months). No breakage or loosening of internal fixation occurred. All fractures healed, and the healing time was 3-12 months (mean, 6.5 months). Compared with preoperative ones, the percentage of anterior height of injured vertebrae, Cobb angle, and RSC at immediate after operation and at last follow-up and the VAS scores at 1 day after operation and at last-follow were significantly improved ( P<0.05). There was no significant difference in the percentage of anterior height of injured vertebrae and Cobb angle between at immediate after operation and at last follow-up ( P>0.05). But the RSC at immediate after operation and VSA score at 1 day after operation were significantly improved when compared with those at last follow-up ( P<0.05). The ASIA grading at last follow-up was 1 case of grade C, 14 grade D, and 13 grade E, which was significantly improved when compared with preoperative ones ( Z=3.860, P=0.000). Conclusion MOT is an effective and minimal invasive treatment for thoracolumbar AO type A3 and A4 burst fractures with severe spinal canal stenosis, and it is beneficial to early rehabilitation for patients.
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Affiliation(s)
- Bin Zhang
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003, P.R.China;Department of Spinal Surgery, Guizhou Orthopedic Hospital, Guiyang Guizhou, 550002, P.R.China
| | - Hua Zou
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003, P.R.China
| | - Weijun Kong
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003, P.R.China
| | - Chong Wang
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003, P.R.China
| | - Fujun Wu
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003, P.R.China
| | - Sheng Ye
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003, P.R.China
| | - Xin Wang
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003,
| | - Jun Ao
- Department of Orthopaedics, Affiliated Hospital of Zunyi Medical University, Zunyi Guizhou, 563003,
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Du Q, Wang X, Qin JP, Friis T, Kong WJ, Cai YQ, Ao J, Xu H, Liao WB. Percutaneous Full-Endoscopic Anterior Transcorporeal Procedure for Cervical Disc Herniation: A Novel Procedure and Early Follow-Up Study. World Neurosurg 2018; 112:e23-e30. [DOI: 10.1016/j.wneu.2017.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/29/2017] [Accepted: 12/01/2017] [Indexed: 11/30/2022]
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Kong W, Ao J, Cao G, Xia T, Liu L, Liao W. Local Spinal Cord Decompression Through a Full Endoscopic Percutaneous Transcorporeal Approach for Cervicothoracic Ossification of the Posterior Longitudinal Ligament at the T1-T2 Level. World Neurosurg 2018; 112:287-293. [PMID: 29410033 DOI: 10.1016/j.wneu.2018.01.099] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/14/2018] [Accepted: 01/15/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To describe a percutaneous full endoscopic transcorporeal procedure to excise local ossification of the posterior longitudinal ligament (OPLL) lesions and decompress the spinal cord at the cervicothoracic transitional segment is safe and effective with respect to surgical complications. METHODS A 67-year-old woman presented with nuchal pain and numbness below the T2 dermatome for 3 months and a 2-week history of paraplegia. T1-T2 myelopathy and paraplegia caused by OPLL was diagnosed based on clinical presentation, computed tomography, and magnetic resonance imaging. An anterior percutaneous full endoscopic transcorporeal procedure addressed local OPLL and achieved local spinal cord decompression at T1-T2. After surgery, magnetic resonance imaging was repeated to evaluate degree of spinal cord decompression. Visual analog scale, Neck Disability Index, and Japanese Orthopaedic Association scores were evaluated at each follow-up. RESULTS The patient tolerated the full endoscopic operation successfully. Operative time was 225 minutes. On postoperative day 6, muscle strength of the bilateral lower extremities had progressed from grade 0/5 preoperatively to grade 2-/5 on the right and grade 2+/5 on the left. No surgery-related complications were discovered. CONCLUSIONS The percutaneous full endoscopic transcorporeal procedure is an alternative to previously described surgical methods of local spinal cord decompression for T1-T2 OPLL with fewer complications, effective spinal cord decompression, and a satisfactory cosmetic result. Successful cases confirm that treatment of spinal cord-limited compression by endoscopic technology is feasible.
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Affiliation(s)
- Weijun Kong
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Guangru Cao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Tongxia Xia
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Lei Liu
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Wenbo Liao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
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Ao J, Liu Y, Jia S, Xue L, Li D, Tan Y, Qin W, Yan H. Acid-promoted furan annulation and aromatization: An access to benzo[ b ]furan derivatives. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yang Z, Wa QD, Lu C, Pan W, Lu ZΜ, Ao J. miR‑328‑3p enhances the radiosensitivity of osteosarcoma and regulates apoptosis and cell viability via H2AX. Oncol Rep 2017; 39:545-553. [PMID: 29207178 PMCID: PMC5783622 DOI: 10.3892/or.2017.6112] [Citation(s) in RCA: 13] [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: 12/26/2016] [Accepted: 09/26/2017] [Indexed: 11/11/2022] Open
Abstract
Osteosarcoma is a kind of high-risk sarcoma of the skeleton typically observed in people under 25 years old. Currently, radiotherapy is widely applied in cancer treatment. However, osteosarcoma is radioresistant and accordingly new, more effective radiosensitizers are needed. miRNAs have been reported to play an important role in osteosarcoma radiosensitivity. We examined the modulating effect of miR-328-3p in vivo and in vitro. miR-328-3p was downregulated in HOS-2R cells. The overexpression of miR-328-3p enhanced the radiosensitivity of osteosarcoma cells. miR-328-3p inhibited proliferation and promoted apoptosis in osteosarcoma cells under radiation conditions. In cells overexpressing miR-328-3p, H2AX expression was downregulated. We found that miR-328-3p targets H2AX and inhibits its expression. It was concluded, that miR-328-3p enhances the radiosensitization of osteosarcoma following X-ray irradiation, and determined that it directly targets H2AX to regulate radiosensitization.
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Affiliation(s)
- Zhen Yang
- Guizhou Provincial People's Hospital, Guiyang, Guizhou, P.R. China
| | - Qing-De Wa
- Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, P.R. China
| | - Chao Lu
- Guizhou Provincial People's Hospital, Guiyang, Guizhou, P.R. China
| | - Wei Pan
- Guizhou Provincial People's Hospital, Guiyang, Guizhou, P.R. China
| | - Zi-Μo Lu
- Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, P.R. China
| | - Jun Ao
- Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, P.R. China
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Abstract
The physical properties of water lead to attenuation of light that travels through the water channel. The attenuation is dependent on the color spectrum wavelength, that results in low contrast and color cast in image acquisition. Several methods have been proposed to handle these problems, such as Linear Stretching, Histogram Equalization (HE) and their variants. Considering the advantages of HE and Linear Stretching, this paper presents a new Adaptive Linear Stretch method (ALS) which can efficiently improve the subjective impression of the traditional Linear Stretching and keep the computational cost low at the same time. To achieve adaptability, the adaptable threshold is deduced from the histogram of image. Performance analysis reveals that the proposed method significantly enhances the image contrast, reduces the color cast and meanwhile, keeps the computational consumption low.
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Affiliation(s)
- Jun Ao
- Guangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin, Guangxi, P. R. China
| | - Chunbo Ma
- Guangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin, Guangxi, P. R. China
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Ferris M, Liu Y, Ao J, Zhong J, Gillespie T, Jani A. The Addition of Chemotherapy to Radical Prostatectomy for Management of High-Risk Prostate Cancer: A National Cancer Database Analysis. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1156] [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: 10/18/2022]
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Ye ZY, Kong WJ, Xin ZJ, Fu Q, Ao J, Cao GR, Cai YQ, Liao WB. Clinical Observation of Posterior Percutaneous Full-Endoscopic Cervical Foraminotomy as a Treatment for Osseous Foraminal Stenosis. World Neurosurg 2017; 106:945-952. [DOI: 10.1016/j.wneu.2017.07.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/15/2017] [Accepted: 07/15/2017] [Indexed: 10/19/2022]
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Wu X, Xue L, Li D, Jia S, Ao J, Deng J, Yan H. Organocatalytic Intramolecular [4+2] Cycloaddition between In Situ Generated Vinylidene ortho
-Quinone Methides and Benzofurans. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707523] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyan Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Lu Xue
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Dongmei Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Ao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Deng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
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Wu X, Xue L, Li D, Jia S, Ao J, Deng J, Yan H. Organocatalytic Intramolecular [4+2] Cycloaddition between In Situ Generated Vinylidene ortho
-Quinone Methides and Benzofurans. Angew Chem Int Ed Engl 2017; 56:13722-13726. [DOI: 10.1002/anie.201707523] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/27/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaoyan Wu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Lu Xue
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Dongmei Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Shiqi Jia
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Ao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Jun Deng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research; School of Pharmaceutical Sciences; Chongqing University; Chongqing 401331 P. R. China
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Fu Q, Liu Y, Liu X, Zhang Q, Chen L, Peng J, Ao J, Li Y, Wang S, Song G, Yu L, Liu J, Zhang T. Engrafted peripheral blood-derived mesenchymal stem cells promote locomotive recovery in adult rats after spinal cord injury. Am J Transl Res 2017; 9:3950-3966. [PMID: 28979672 PMCID: PMC5622241] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Spinal cord injury (SCI) is a severe trauma of central nervous system (CNS). Numerous stem cells have been applied for SCI therapy. Peripheral blood-derived mesenchymal stem cells (PBMSCs) have captured researchers' attention by virtue of pluripotency and effectiveness. However, little work has been performed on whether PBMSCs play roles and what role, if any, in the lesion microenvironment. Through the investigation of the differentiation, neuroprotection and immunoloregulation of engrafted PBMSCs, we found that the expression of glial fibrillary acidic protein (GFAP) was inhibited. Meanwhile, myelin basic protein (MBP), neurofilament protein-200 (NF-200) and microtubule associated protein-2 (MAP-2) were promoted after PBMSC transplantation (PBMSCT) by immunohistochemistry. Though engrafted PKH26+PBMSCs could survive in vivo for at least 8 w, they could not respectively express GFAP, MBP and neuronal specific neucleoprotein (NeuN) by immunofluorescence. Additionally, Flow cytometry demonstrated that the number of CD4+IL17+Th17 cells decreased while CD4+CD25+Foxp3+Treg ones increased after PBMSCT (P < 0.01). Immunohistochemistry and Elisa both showed a lower expression of IL-6 and IL-17a while a higher expression of TGF-β after PBMSCT (P < 0.05). RT-PCR indicated that Th17-relevant genes including RORγT, IL-6 and IL-21 were inhibited and resulted in the decrease of IL-23a and IL-22 secretion (P < 0.05); Treg-relevant genes including FoxP3 and TGF-β and the secretion of IL-10 were improved (P < 0.05). Accordingly, we concluded that the PBMSCT-relevant therapy took effect not through the differentiation of PBMSCs into CNS cells, but through regulating Th17/Treg-relevant gene expression, inhibiting Th17-relevant gene expression and meanwhile promoting Treg-relevant gene expression, and eventually resulted in promotion of the functional recovery of SCI rats.
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Affiliation(s)
- Qiang Fu
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
- Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of ChinaChengdu, Sichuan, China
| | - Yi Liu
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Xiu Liu
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Qian Zhang
- Department of Human Anatomy, Zunyi Medical CollegeZunyi, Guizhou, China
| | - Long Chen
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
- Experimental Centre, Affiliated Dongfeng General Hospital of Hubei University of MedicineShiyan, Hubei, China
| | - Jiachen Peng
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Jun Ao
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Yuwan Li
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Shengmin Wang
- Department of Orthopedics, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Gongyu Song
- Department of Human Anatomy, Zunyi Medical CollegeZunyi, Guizhou, China
| | - Limei Yu
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Jinwei Liu
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province and Regenerative Medicine Centre, Affiliated Hospital of Zunyi Medical CollegeZunyi, Guizhou, China
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Abstract
A mild one-pot method for the direct conversion of aryl, heteroaryl and alkyl aldehydes into nitriles was achieved by forming the corresponding oximes in situ with NH2OH and allowing them to react with CuO and acetonitrile. Yields of the 13 nitriles prepared were moderate to very good (62–91%).
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Affiliation(s)
- Xiaoyun Ma
- School of Chemistry and Life Sciences, Guizhou Education University, Guiyang 550018, P.R. China
| | - Jun Ao
- School of Chemistry and Life Sciences, Guizhou Education University, Guiyang 550018, P.R. China
| | - Zhengjian Chen
- School of Chemistry and Life Sciences, Guizhou Education University, Guiyang 550018, P.R. China
| | - Yi Liu
- School of Chemistry and Life Sciences, Guizhou Education University, Guiyang 550018, P.R. China
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Abstract
A K2S2O8-activated regioselective alkylation of α-amido sulfones at the C-3 position of indoles is reported. The protocol developed herein provides an alternative new strategy to the previous approach by using Lewis acid, clay, and resin as catalyst for this Friedel–Crafts type alkylation of indoles with α-amido sulfones. The formed product bears a versatile transformable sulfone group and an amino group. The reaction condition is tolerant to a wide range of substrates, including a series of indoles with electron-withdrawing and electron-donating groups at different positions. Moreover, a variety of α-substituted phenylamido sulfones and some α-aliphatic amido sulfones also give the desired products in modest yield. Furthermore, a preliminary mechanism study was performed and the plausible reaction mechanism is discussed.
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Qin J, Wang C, Ao J, Liao W. [Comparative study on treatment of thoracolumbar burst fractures with bone grafting by transpedicular approach and by interlaminal small fenestration]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2017; 31:670-676. [PMID: 29798647 DOI: 10.7507/1002-1892.201702096] [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: 11/03/2022]
Abstract
Objective To investigate the effectiveness and long-term stability of small fenestration vertebral bone grafting and transpedicular bone grafting in the treatment of Denis types A and B thoracolumbar burst fractures. Methods Between January 2012 and February 2014, 50 patients with Denis type A or B thoracolumbar burst fractures were treated with vertebroplasty and pedicle screw rod fixation system, and the clinical data were retrospectively analyzed. Small fenestration vertebral bone grafting by trans-interlaminar approach was used in 30 cases (group A), and bone grafting by unilateral transpedicular approach was used in 20 cases (group B). X-ray and CT examinations of the thoracolumbar vertebrae were performed routinely before and after operation. There was no significant difference in sex, age, cause of injury, time from injury to operation, fracture type, injury segment, and preoperative Frankel classification, the percentage of the anterior body height of the injured vertebra, and visual analogue scale (VAS) score between two groups ( P>0.05). There was significant difference in preoperative Cobb angle of kyphosis between two groups ( P<0.05). The Cobb angle of kyphosis, the percentage of the anterior body height of the injured vertebra, and the recovery of neurological function were recorded and compared between two groups. Results The patients were followed up for 16-31 months (mean, 19.1 months) in group A and for 17-25 months (mean, 20.2 months) in group B. Primary healing of incisions was obtained in the two groups; no nerve injury and other operative complications occurred. The neurological function was improved in varying degrees in the other patients with neurological impairment before operation except patients at grade A of Frankel classification. The lumbar back pain was relieved in two groups. There was significant difference in VAS score between before operation and at 3 months after operation or last follow-up in two groups ( P<0.05), but no significant difference was found between at 3 months and last follow-up in two groups and between two groups at each time point after operation ( P>0.05). X-ray examination showed that there was no breakage of nail and bar, or dislocation and loosening of internal fixation during follow-up period. The bone grafts filled well and fused in the fractured vertebra. The vertebral height recovered well after operation. The percentage of the anterior body height of the in-jured vertebra and Cobb angle of kyphosis at 1 week, 3 months, and last follow-up were significantly better than preope-rative ones in two groups ( P<0.05), but there was no significant difference between different time points after operation ( P>0.05), and between two groups at each time point after operation ( P>0.05). Conclusion For Denis types A and B thoracolumbar burst fractures, vertebral bone grafting and pedicle screw internal fixation through interlaminal small fene-stration or transpedicular approach can restore the vertebral height, correct kyphosis, and maintain the vertebral stability, which reduce the risk of complications of loosening and breakage of internal fixators. The appropriate bone grafting approach can be chosen based on the degree of spinal canal space occupying, collapse of vertebral and spinal cord injury.
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Affiliation(s)
- Jianpu Qin
- Department of Spine Surgery, the First Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563000, P.R.China
| | - Chong Wang
- Department of Spine Surgery, the First Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563000, P.R.China
| | - Jun Ao
- Department of Spine Surgery, the First Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563000,
| | - Wenbo Liao
- Department of Spine Surgery, the First Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563000, P.R.China
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Duan M, Liu Y, Ao J, Xue L, Luo S, Tan Y, Qin W, Song CE, Yan H. Asymmetric Synthesis of Trisubstituted Tetrahydrothiophenes via in Situ Generated Chiral Fluoride-Catalyzed Cascade Sulfa-Michael/Aldol Reaction of 1,4-Dithiane-2,5-diol and α,β-Unsaturated Ketones. Org Lett 2017; 19:2298-2301. [DOI: 10.1021/acs.orglett.7b00813] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mengying Duan
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Yidong Liu
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Jun Ao
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Lu Xue
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Shilong Luo
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Yu Tan
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Wenling Qin
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Choong Eui Song
- Department
of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Hailong Yan
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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Liu Y, Ao J, Paladhi S, Song CE, Yan H. Organocatalytic Asymmetric Synthesis of Chiral Dioxazinanes and Dioxazepanes with in Situ Generated Nitrones via a Tandem Reaction Pathway Using a Cooperative Cation Binding Catalyst. J Am Chem Soc 2016; 138:16486-16492. [DOI: 10.1021/jacs.6b10660] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yidong Liu
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Jun Ao
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Sushovan Paladhi
- Department
of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Choong Eui Song
- Department
of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Hailong Yan
- Innovative
Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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Chen L, Qin J, Wu F, Liao W, Ao J. [MINIMALLY INVASIVE PASSAGE IN POSTERIOR LAMINOTOMY DECOMPRESSION AND INTERVERTEBRAL BONE GRAFTING COMBINED WITH PERCUTANEOUS PEDICLE SCREW FIXATION FOR TREATMENT OF Denis TYPE B THORACOLUMBAR BURST FRACTURES]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2016; 30:985-991. [PMID: 29786230 DOI: 10.7507/1002-1892.20160200] [Citation(s) in RCA: 2] [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: 11/03/2022]
Abstract
OBJECTIVE To evaluate the feasibility and the effectiveness of minimally invasive passage in posterior laminotomy decompression and intervertebral bone grafting combined with percutaneous pedicle screw fixation for the treatment of Denis type B thoracolumbar burst fractures. METHODS Between January 2013 and March 2015, 53 patients with Denis type B thoracolumbar burst fractures were treated by minimally invasive passage in posterior laminotomy decompression and intervertebral bone grafting combined with percutaneous pedicle screw fixation. There were 37 males and 16 females with a mean age of 43 years (range, 16-57 years). The causes included falling injury from height in 23 cases, traffic accident injury in 15 cases, heavy pound injury in 7 cases, and falling injury in 8 cases. The time between injury and operation was 7 hours to 12 days (mean, 6.7 days). The involved segments included T11 in 2 cases, T12 in 7 cases, L1 in 20 cases, L2 in 18 cases, and L3 in 6 cases; based on the neurological classification of spinal cord injury by American Spinal Injury Association (ASIA), 3 cases were rated as grade A, 5 cases as grade B, 12 cases as grade C, 24 cases as grade D, and 9 cases as grade E. The operation time, bleeding volume, and postoperative drainage were recorded; postoperative visual analogue scale (VAS) was used for pain evaluation, and ASIA for neurological function assessment; CT and X-ray films were taken to observe fracture healing, bone fusion, and grafted bone absorption; The vertebral canal patency rate was calculated; the relative height of fractured vertebrae and Cobb angle were measured. RESULTS The operation was successfully completed in all patients; the average operation time was 150 minutes (range, 90-240 minutes); the average bleeding volume was 350 mL (range, 50-500 mL); the average postoperative drainage was 80 mL (range, 20-150 mL); and the average VAS score was 2.3 (range, 1.5-4.7) at 3 days after operation. The incisions healed primarily. All the patients were followed up 12-19 months (mean, 15 months). All fractures healed at 3-9 months (mean, 6 months). No complications of broken nails, broken rod, and screw loosening occurred. At last follow-up, the vertebral canal patency rate was significantly improved when compared with preoperative value (t=27.395, P=0.000). The Cobb angle, and the anterior and posterior heights of of traumatic vertebra were significantly improved at 1 week, 1 year, and last follow-up when compared with preoperative ones (P<0.05), but there was no significant difference between different time points after operation (P>0.05). The neurological function was improved in different degrees; 1 case was rated as grade A, 4 cases as grade B, 7 cases as grade C, 15 cases as grade D, and 26 cases as grade E, showing significant difference when compared with preoperative one (Z=-5.477, P=0.000). CONCLUSIONS Minimally invasive passage in posterior laminotomy decompression, bone graft in the injured vertebrae combined with percutaneous pedicle screw fixation is an effective method to treat Denis type B thoracolumbar burst fractures, which not only can fully decompression, but also can effectively maintain the postoperative injured vertebral height, reduce the postoperative failure risk of internal fixation and decrease operation trauma.
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Affiliation(s)
- Lin Chen
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Jianpu Qin
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Fujun Wu
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Wenbo Liao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Jun Ao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
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Chen L, Qin J, Ao J, Liao W, Cai Y. [One-stage posterior retaining part facet joint in laminectomy and debridement combined with short segmental pedicle screw fixation for lumbosacral spinal tuberculosis]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2016; 30:849-854. [PMID: 29786321 DOI: 10.7507/1002-1892.20160173] [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: 11/03/2022]
Abstract
OBJECTIVE ?To evaluate the feasibility and effectiveness of one-stage posterior retaining part facet joint in laminectomy, bone graft and debridement combined with short segmental pedicle screw fixation for lumbosacral spinal tuberculosis. METHODS ?Between January 2010 and December 2014, 32 cases of lumbosacral spinal tuberculosis (L4-S1) were treated by one-stage posterior retaining part facet joint in laminectomy, bone graft and debridement combined with short segmental pedicle screw fixation. There were 20 males and 12 females, aged 17-62 years (mean, 43 years). The disease duration was 12-48 months (mean, 18 months). The involved segments included L5, S1 level in 19 cases and L4, 5 level in 13 cases. The effectiveness was evaluated by Oswestry disability index (ODI) and imaging parameters (lumbar-sacral angle correction and Bridwell classification and CT fusion criteria) after operation. RESULTS ?The operation was successfully completed in all patients; the average operation time was 180 minutes, and the average intraoperative blood loss was 400 mL. All cases were followed up 12 to 67 months (mean, 15.6 months). At last follow-up, common toxic symptom of tuberculosis disappeared, and no internal fixation failure occurred. Neurological function was recovered to normal in 7 patients with neurological symptoms, and American Spinal Injury Association (ASIA) scale was improved to grade E from grade C (2 cases) and grade D (5 cases) before operation. At 1 year and last follow-up, the ODI scores were significantly improved when compared with preoperative score (P<0.05), but no significant difference was found between at 1 year and last follow-up (P>0.05). The lumbarsacral angle was significantly increased at 7 days, 1 year and last follow-up when compared with preoperative one (P<0.05), but there was no significant difference between different time points after operation (P>0.05). The bone graft fusion time was 9-24 months (mean, 12 months). At 1 year after operation and last follow-up, X-ray Bridwill bone fusion rates were 87.50% (28/32) and 93.75% (30/32) respectively, and CT fusion rates were 87.50% (28/32) and 90.63% (29/32) respectively; and there was significant difference in interbody fusion between at 1 year and last follow-up (P<0.05). Drug resistance was observed in 4 cases; Bridwill grade Ⅲ and grade Ⅳ fusion was shown in 3 cases and 1 case after adjusting the anti-tuberculosis scheme after 1 year. CONCLUSIONS ?One-stage posterior retaining part facet joint in laminectomy and debridement can effectively clear the tuberculose focus, intervertebral bone graft combined with short segment pedicle screw fixation can maintain postoperative spinal reliable stability and get satisfactory bone fusion rate, so it is an effective method for the treatment of lumbosacral tuberculosis.
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Affiliation(s)
- Lin Chen
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Jianpu Qin
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Jun Ao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Wenbo Liao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
| | - Yuqiang Cai
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P. R. China
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Jia H, Cong Q, Chua JFL, Liu H, Xia X, Zhang X, Lin J, Habib SL, Ao J, Zuo Q, Fu C, Li B. p57Kip2 is an unrecognized DNA damage response effector molecule that functions in tumor suppression and chemoresistance. Oncogene 2014; 34:3568-81. [DOI: 10.1038/onc.2014.287] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 06/22/2014] [Accepted: 07/27/2014] [Indexed: 02/05/2023]
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Ao J, Xin Z, Chen F, Xin X, Liao W. [Influence of two kinds of bone grafting methods on bone defect gap residual rates and compressive stiffness after reduction of thoracolumbar burst fracture]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2013; 27:974-979. [PMID: 24171354] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To investigate the amount of bone grafting, bone defect gap residual rates, and biomechanical stability of the injured vertebral body after reduction of thoracolumbar burst fractures, pedicle screw-rods fixation, and bone graft by bilateral pedicle or unilateral spinal canal. METHODS Eighteen fresh lumbar spine (L1-5) specimens of calves (aged 4-6 months) were collected to establish the burst fracture model at L3 and divided into 3 groups randomly. After reduction and fixation with pedicle screws, no bone graft was given in group A (n = 6), and bone graft was performed by bilateral pedicles in group B (n = 6) and by unilateral spinal canal in group C (n = 6). The amount of bone grafting in groups B and C was recorded. The general situation of bone defect gaps was observed by the DR films and CT scanning, and the defect gap residual rates of the injured vertebrae were calculated with counting of grids. The compression stiffness was measured by ElectreForce-3510 high precision biological material testing machines. RESULTS The amount of bone grafting was (4.58 +/- 0.66) g and (5.72 +/- 0.78) g in groups B and C respectively, showing signficant difference (t = 2.707, P = 0.022). DR films and CT scanning observation showed large bone defect gap was seen in injured vertebrae specimens of group A; however, the grafting bone grains was seen in the "eggshell" gap of the injured vertebral body, which were mainly located in the posterior part of the vertebral body, but insufficient filling of bone graft in the anterior part of the vertebral body in group B; better filling of the grafting bone grains was seen in injured vertebral body of group C, with uniform distribution. The bone defect gap residual rates were 52.0% +/- 5.5%, 39.7% +/- 2.5%, and 19.5% +/- 2.5% respectively in groups A, B, and C; group C was significantly lower than groups A and B (P < 0.05), and group B was significantly lower than group A (P < 0.05). Flexion compressive stiffness of group C was significantly higher than that of groups A and B (P < 0.05), but no significant difference was found between groups A and B (P > 0.05). Extension compressive stiffness in group C was significantly higher than that in group A (P < 0.05), but no significant difference was found between groups A and B, and between groups B and C (P > 0.05). The compression stiffness of left bending and right bending had no significant difference among 3 groups (P > 0.05). CONCLUSION Thoracolumbar burst fracture pedicle screws fixation with bone grafting by unilateral spinal canal can implant more bone grains, has smaller bone defect gap residual rate, and better recovery of flexion compression stiffness than by bilateral pedicles.
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Affiliation(s)
- Jun Ao
- Department of Spinal Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi Guizhou, 563003, P R China
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