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Tai PA, Chang CK, Niu KC, Lin MT, Chiu WT, Lin JW. Attenuation of Heat-Induced Hypothalamic Ischemia, Inflammation, and Damage by Hyperbaric Oxygen in Rats. J Neurotrauma 2021; 38:1185-1192. [PMID: 20578826 DOI: 10.1089/neu.2010.1323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The present study was attempted to assess the mechanisms underlying the beneficial effects of hyperbaric oxygen (HBO2; 100% O2 at 253 kpa) in treating experimental heatstroke. Anesthetized rats were divided into five major groups: normothermic control (NC) rats treated with normobaric air (NBA; 21% O2 at 101 kpa; NC + NBA); NC rats treated with HBO2 (NC + HBO2); heatstroke (HS) rats treated with NBA (HS + NBA); HS rats treated with hyperbaric air (HBA; 21% at 253 kpa; HS + HBA); and HS rats treated with HBO2 (HS + HBO2). HS groups were exposed to heat (43°C) for exactly 68 min and then allowed to recover at 26°C. HBA or HBO2 was adopted 68 or 78 min after the start of heat exposure. Survival time values for (HS + NBA) rats, (HS + HBA) rats at 68 min, (HS + HBA) rats at 78 min, (HS + HBO2) rats at 68 min, and (HS + HBO2) rats at 78 min were found to be 90 ± 3, 133 ± 12, 109 ± 9, 240 ± 18, and 170 ± 15 min, respectively. Resuscitation with HBA or HBO2 at 68 min was superior to those treated at 78 min in prolonging the survival time values. All (HS + NBA) animals displayed hyperthermia, hypotension, and increased cellular levels of ischemia, oxidative stress and damage markers, pro-inflammatory cytokines, and an indicator of polymorphonuclear cell accumulation in their hypothalamus as compared to those of NCs. Heat-induced hyperthermia was not affected by HBA or HBO2 treatment. However, heat-induced hypotension and hypothalamic ischemia, oxidative stress, neuronal damage, and inflammation were all significantly reduced by HBA or HBO2 therapy. Compared to those of HBA therapy, HBO2 therapy had a significantly higher beneficial effect in treating heatstroke. Our results suggested that HBO2 improved heatstroke outcomes, in part, by restoring normal hypothalamic function. Delaying the onset of HBO2 therapy reduced the therapeutic efficiency.
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Affiliation(s)
- Po-An Tai
- Graduate Institute of Clinical Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Surgery, Buddhist Tzu Chi General Hospital, Taipei, Taiwan
| | - Chen-Kuei Chang
- Graduate Institute of Disease Prevention and Control, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Mackay Memorial Hospital, Taipei, Taiwan
| | - Ko-Chi Niu
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Mao-Tsun Lin
- Graduate Institute of Disease Prevention and Control, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Wen-Ta Chiu
- Graduate Institute of Disease Prevention and Control, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Jia-Wei Lin
- Graduate Institute of Clinical Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
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Hsu HT, Yue CT, Teng MS, Tzeng IS, Li TC, Tai PA, Huang KF, Chen CY, Ko YL. Corrigendum to Immuohistochemical score of matrix metalloproteinase-1 may indicate the severity of symptomatic cervical and lumbar disc degeneration' [The Spine Journal 20 (2020) 124-137]. Spine J 2020; 20:1163. [PMID: 32340816 DOI: 10.1016/j.spinee.2020.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Chung-Tai Yue
- Department of Anatomic Pathology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Department of Pathology, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Ming-Sheng Teng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Tin-Chou Li
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Po-An Tai
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Kuo-Feng Huang
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Cheng-Yu Chen
- Department of Family Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Yu-Lin Ko
- School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan; Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan..
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Tai PA, Liu YL, Wen YT, Lin CM, Huynh TT, Hsiao M, Wu ATH, Wei L. The Development and Applications of a Dual Optical Imaging System for Studying Glioma Stem Cells. Mol Imaging 2020; 18:1536012119870899. [PMID: 31478435 PMCID: PMC6724491 DOI: 10.1177/1536012119870899] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Glioblastoma multiforme represents one of the deadliest brain tumor types, manifested by a high rate of recurrence and poor prognosis. The presence of glioma stem cells (GSCs) can repopulate the tumor posttreatment and resist therapeutics. A better understanding of GSC biology is essential for developing more effective interventions. We established a CD133 promoter-driven dual reporter, expressing green fluorescent protein (GFP) and firefly luciferase (CD133-LG), capable for in vitro and in vivo imaging of CD133+ GSCs. We first demonstrated the reporter enabled in vitro analyses of GSCs. DBTRG-05MG (Denver Brain Tumor Research Group 05) carrying CD133-LG (DBTRG-05MG-CD133-LG) system reported increased GFP/luciferase activities in neurospheres. Additionally, we identified and isolated CD133+/GFP+ cells with increased tumorigenic properties, stemness markers, Notch1, β-catenin, and Bruton’s tyrosine kinase (Btk). Furthermore, prolonged temozolomide (TMZ) treatment enriched GSCs (reflected by increased percentage of CD133+ cells). Subsequently, Btk inhibitor, ibrutinib, suppressed GSC generation and stemness markers. Finally, we demonstrated real-time evaluation of anti-GSC function of ibrutinib in vivo with TMZ-enriched GSCs. Tumorigenesis was noninvasively monitored by bioluminescence imaging and mice that received ibrutinib showed a significantly lower tumor burden, indicating ibrutinib as a potential GSC inhibitor. In conclusion, we established a dual optical imaging system which enables the identification of CD133+ GSCs and screening for anti-GSC drugs.
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Affiliation(s)
- Po-An Tai
- 1 Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City.,2 Department of Surgery, School of Medicine, Buddhist Tzu Chi University, Hualien County
| | - Yen-Lin Liu
- 3 Department of Pediatrics, Taipei Medical University Hospital, Taipei.,4 Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Medical University, Taipei.,5 Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei
| | - Ya-Ting Wen
- 6 The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei.,7 Department of Neurosurgery, Taipei Medical University-Wan Fang Hospital, Taipei
| | - Chien-Min Lin
- 8 Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei.,9 Division of Neurosurgery, Department of Surgery, Shuang-Ho Hospital, Taipei Medical University, Taipei.,10 Taipei Neuroscience Institute, Taipei Medical University, Taipei
| | - Thanh-Tuan Huynh
- 11 Center for Molecular Biomedicine, University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam
| | - Michael Hsiao
- 12 Genomics Research Center, Academia Sinica, Taipei
| | - Alexander T H Wu
- 6 The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei.,13 Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei
| | - Li Wei
- 1 Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City.,14 Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei
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Hsu HT, Yue CT, Teng MS, Tzeng IS, Li TC, Tai PA, Huang KF, Chen CY, Ko YL. Immuohistochemical score of matrix metalloproteinase-1 may indicate the severity of symptomatic cervical and lumbar disc degeneration. Spine J 2020; 20:124-137. [PMID: 31408735 DOI: 10.1016/j.spinee.2019.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/24/2019] [Accepted: 08/07/2019] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Intervertebral disc (IVD) degeneration is related to numerous risk factors, including obesity. Leptin, one of the commonly measured adipokines, is proven to play an important role in the pathogenesis of IVD degeneration. In the context of IVD degeneration, matrix metalloproteinase-1 (MMP-1), which is upregulated and activated by leptin, is the most abundant catabolic enzyme. It remains unclear which of the factors mentioned above is most strongly associated with IVD degeneration. PURPOSE To investigate the influence of MMP-1 in IVD degeneration, we determined the strength of different predictors, including age, sex, magnetic resonance imaging (MRI), Modic changes (MCs), body mass index (BMI), leptin, and MMP-1. This was achieved by assessing the correlation among these factors and histologic degeneration score (HDS). STUDY DESIGN This study included 89 patients undergoing cervical discectomy for disc herniation, 93 who underwent lumbar discectomy, and 90 control subjects. Herniated disc tissue and plasma were used after the study was approved by the Human Ethics Review Committee at the authors' institution. METHODS Hematoxylin and eosin (H&E), Alcian blue-PAS and immunohistochemical (IHC) staining were performed to measure the expression levels of leptin and MMP-1. Circulating plasma levels of leptin and MMP-1 were measured using an enzyme-linked immunosorbent assay. To assess the correlation with HDS, measurements of age, sex, BMI, MRI scale, MCs scale, leptin/MMP-1 plasma concentration, and leptin/MMP-1 IHC expression were analyzed. RESULTS Patients with cervical or lumbar discectomy had significantly higher BMI than controls. Significantly more men than women were involved in the lumbar patients as compared with the cervical patients and the control subjects. After adjustment for age and sex, plasma leptin and leptin IHC score correlated significantly with BMI in patients with cervical or lumbar discectomy. Age, sex, MRI scale, MCs scale, and leptin/MMP-1 plasma concentration were not positively correlated with HDS. HDS was significantly associated with BMI, leptin IHC score, and MMP-1 IHC score. After a stepwise-multiple linear regression analysis to evaluate the strength of the correlations between HDS and various factors, only the MMP-1 IHC score demonstrated an independent association with HDS in patients with degeneration of the cervical or lumbar disc. CONCLUSIONS MMP-1 IHC score is an independent predictor of the severity of cervical or lumbar IVD degeneration. CLINICAL SIGNIFICANCE MMP-1 IHC score may be used as an indicator of IVD degeneration.
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Affiliation(s)
- Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Chung-Tai Yue
- Department of Anatomic Pathology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Department of Pathology, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Ming-Sheng Teng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Tin-Chou Li
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Po-An Tai
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Kuo-Feng Huang
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Cheng-Yu Chen
- Department of Family Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Yu-Lin Ko
- School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan; Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.
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Tai PA, Hsu YJ, Huang WC, Chang CH, Chen YH, Huang CC, Wei L. Congenital exercise ability ameliorates muscle atrophy but not spinal cord recovery in spinal cord injury mouse model. Int J Med Sci 2019; 16:1549-1556. [PMID: 31839742 PMCID: PMC6909809 DOI: 10.7150/ijms.37442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 06/09/2019] [Accepted: 09/11/2019] [Indexed: 12/24/2022] Open
Abstract
Spinal cord injury (SCI) can cause loss of mobility in the limbs, and no drugs, surgical procedures, or rehabilitation strategies provide a complete cure. Exercise capacity is thought to be associated with the causes of many diseases. However, no studies to date have assessed whether congenital exercise ability is related to the recovery of spinal cord injury. High congenital exercise ability (HE) and low congenital exercise ability (LE) mice were artificially bred from the same founder ICR mice. The HE and LE groups still exhibited differences in exercise ability after 13 generations of breeding. Histological staining and immunohistochemistry staining indicated no significant differences between the HE and LE groups on recovery of the spinal cord. In contrast, after SCI, the HE group exhibited better mobility in gait analysis and longer endurance times in the exhaustive swimming test than the LE group. In addition, after SCI, the HE group also exhibited less atrophy than the LE group, and no inflammatory cells appeared. In conclusion, we found that high congenital exercise ability may reduce the rate of muscle atrophy. This result can be applied to sports science and rehabilitation science as a reference for preventive medicine research.
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Affiliation(s)
- Po-An Tai
- Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan.,Department of Surgery, School of Medicine, Buddhist Tzu Chi University, Hualien County 97004, Taiwan
| | - Yi-Ju Hsu
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan 33301, Taiwan
| | - Wen-Ching Huang
- Department of Exercise and Health Science, National Taipei University of Nursing and Health Sciences, Taipei 11219, Taiwan
| | - Chun-Hao Chang
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan 33301, Taiwan
| | - Yi-Hsun Chen
- Graduate Institute of Veterinary Pathobiology, National Chung Hsin University, Taichung, 402, Taiwan
| | - Chi-Chang Huang
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan 33301, Taiwan
| | - Li Wei
- Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan.,Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei 11031, Taiwan
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Abstract
Most lumbar intradural schwannomas present initially as radiculopathies with sensory disturbances. However, neurogenic bladder dysfunction may be one of the earliest manifestations and can cause long-term disability. We present the case of a patient with a L3-4 schwannoma (newly diagnosed owing to recurrent urinary retention and urinary tract infection) who finally underwent surgical resection. Improvement of bladder sensation was documented by urodynamic study and the patient was subsequently weaned off her Foley catheter with satisfactory outcome.
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Affiliation(s)
- KS Yang
- Department of Physical Medicine and Rehabilitation, Lotung Poh-Ai Hospital, Taiwan
| | - CS Ho
- Department of Physical Medicine and Rehabilitation, Lotung Poh-Ai Hospital, Taiwan
- Graduate Institute of Sports Science, National Taiwan Sport University, Taiwan
| | - PA Tai
- Department of Surgery, Taipei Tzu Chi Hospital and Buddhist Tzu Chi University, Taiwan
- PA Tai and WM Kung both contributed equally to this work as co-corresponding authors
| | - WM Kung
- Department of Surgery, Taipei Tzu Chi Hospital and Buddhist Tzu Chi University, Taiwan
- Department of Exercise and Health Promotion, Chinese Culture University, Taiwan
- PA Tai and WM Kung both contributed equally to this work as co-corresponding authors
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Huang CJ, Hsu HT, Chang SJ, Huang KF, Tai PA, Li TC. Correlation between lumbar lordosis and the treatment of chronic low back pain with pulsed radiofrequency applied to the L2 dorsal root ganglion. Formos J Surg 2017. [DOI: 10.4103/fjs.fjs_43_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Chang CS, Hwang JM, Tai PA, Chang YK, Wang YN, Shih R, Chuang KS. Optimal technique of linear accelerator-based stereotactic radiosurgery for tumors adjacent to brainstem. Med Dosim 2016; 41:248-52. [PMID: 27396940 DOI: 10.1016/j.meddos.2016.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/09/2016] [Revised: 04/13/2016] [Accepted: 06/03/2016] [Indexed: 12/25/2022]
Abstract
Stereotactic radiosurgery (SRS) is a well-established technique that is replacing whole-brain irradiation in the treatment of intracranial lesions, which leads to better preservation of brain functions, and therefore a better quality of life for the patient. There are several available forms of linear accelerator (LINAC)-based SRS, and the goal of the present study is to identify which of these techniques is best (as evaluated by dosimetric outcomes statistically) when the target is located adjacent to brainstem. We collected the records of 17 patients with lesions close to the brainstem who had previously been treated with single-fraction radiosurgery. In all, 5 different lesion catalogs were collected, and the patients were divided into 2 distance groups-1 consisting of 7 patients with a target-to-brainstem distance of less than 0.5cm, and the other of 10 patients with a target-to-brainstem distance of ≥ 0.5 and < 1cm. Comparison was then made among the following 3 types of LINAC-based radiosurgery: dynamic conformal arcs (DCA), intensity-modulated radiosurgery (IMRS), and volumetric modulated arc radiotherapy (VMAT). All techniques included multiple noncoplanar beams or arcs with or without intensity-modulated delivery. The volume of gross tumor volume (GTV) ranged from 0.2cm(3) to 21.9cm(3). Regarding the dose homogeneity index (HIICRU) and conformity index (CIICRU) were without significant difference between techniques statistically. However, the average CIICRU = 1.09 ± 0.56 achieved by VMAT was the best of the 3 techniques. Moreover, notable improvement in gradient index (GI) was observed when VMAT was used (0.74 ± 0.13), and this result was significantly better than those achieved by the 2 other techniques (p < 0.05). For V4Gy of brainstem, both VMAT (2.5%) and IMRS (2.7%) were significantly lower than DCA (4.9%), both at the p < 0.05 level. Regarding V2Gy of normal brain, VMAT plans had attained 6.4 ± 5%; this was significantly better (p < 0.05) than either DCA or IMRS plans, at 9.2 ± 7% and 8.2 ± 6%, respectively. Owing to the multiple arc or beam planning designs of IMRS and VMAT, both of these techniques required higher MU delivery than DCA, with the averages being twice as high (p < 0.05). If linear accelerator is only 1 modality can to establish for SRS treatment. Based on statistical evidence retrospectively, we recommend VMAT as the optimal technique for delivering treatment to tumors adjacent to brainstem.
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Affiliation(s)
- Chiou-Shiung Chang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan; Department of Radiation Oncology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan.
| | - Jing-Min Hwang
- Department of Radiation Oncology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan; College of Medicine, Tzu Chi University, Hualan, Taiwan
| | - Po-An Tai
- Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Buddhist Tzu Chi University, Hualan, Taiwan
| | - You-Kang Chang
- Department of Radiation Oncology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan; College of Medicine, Tzu Chi University, Hualan, Taiwan
| | - Yu-Nong Wang
- Department of Radiation Oncology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
| | - Rompin Shih
- Department of Radiation Oncology, New York-Presbyterian Hospital, New York, NY
| | - Keh-Shih Chuang
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
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Tai PA, Li TC. Lumbar Intradural Ganglion Cyst. World Neurosurg 2016; 88:691.e1-691.e4. [DOI: 10.1016/j.wneu.2015.11.088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/24/2015] [Accepted: 11/26/2015] [Indexed: 12/01/2022]
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Chen MH, Sun JS, Liao SY, Tai PA, Li TC, Chen MH. Low-intensity pulsed ultrasound stimulates matrix metabolism of human annulus fibrosus cells mediated by transforming growth factor β1 and extracellular signal-regulated kinase pathway. Connect Tissue Res 2015; 56:219-27. [PMID: 25658041 DOI: 10.3109/03008207.2015.1016609] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE There are limited strategies to restore the damaged annulus fibrosus (AF) of the intervertebral disc. Low-intensity pulsed ultrasound (LIPUS) has positive effects on the proliferation of several types of cells and the repair of damage tissue in vivo. However, scientific evidence of therapeutic effects of LIPUS on AF cells remains limited. The purpose of this study is to evaluate the feasibility of applying LIPUS to the repair of the AF. MATERIALS AND METHODS We used an in vitro model of human AF cells subjected to LIPUS stimulation to examine its effects on cell proliferation and matrix metabolism. Cell viability, synthesis of collagen and glycosaminoglycan (GAG), expression of matrix metalloproteinases (MMPs) and transforming growth factor β1 and pathways involving mitogen-activated protein kinases (MAPKs) were investigated. RESULTS LIPUS significantly enhanced proliferation of AF cells after 5 days of treatment. LIPUS with an intensity of 0.5 W/cm(2) increased the collagen and GAG synthesis and decreased the expressions of MMP-1 and -3 of human AF cells. Real-time polymerase chain reactions and western blotting analysis revealed that LIPUS could increase transforming growth factor β1 (TGF-β1) and activate extracellular signal-regulated kinase (ERK) pathway. In addition, TGF-β receptor kinase inhibitor could suppress the ultrasound-induced alterations in cell viability and matrix metabolism. CONCLUSIONS The findings suggested that LIPUS could be useful as a physical stimulation of cell metabolism for the repair of the AF.
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Affiliation(s)
- Mei-Hsiu Chen
- Department of Internal Medicine, Far Eastern Memorial Hospital , Taipei , Taiwan
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Tai PA, Chang CK, Niu KC, Lin MT, Chiu WT, Lin CM. Attenuating Experimental Spinal Cord Injury by Hyperbaric Oxygen: Stimulating Production of Vasculoendothelial and Glial Cell Line-Derived Neurotrophic Growth Factors and Interleukin-10. J Neurotrauma 2010; 27:1121-7. [DOI: 10.1089/neu.2009.1162] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Po-An Tai
- Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, Buddhist Tzu Chi General Hospital, Taipei, Taiwan
| | - Chen-Kuei Chang
- Department of Surgery, Mackay Memorial Hospital, Taipei, Taiwan
- Graduate Institute of Injury Prevention and Control, Taipei Medical University and Municipal Wan-Fan Hospital, Taipei, Taiwan
| | - Ko-Chi Niu
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Mao-Tsun Lin
- Graduate Institute of Injury Prevention and Control, Taipei Medical University and Municipal Wan-Fan Hospital, Taipei, Taiwan
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Wen-Ta Chiu
- Graduate Institute of Injury Prevention and Control, Taipei Medical University and Municipal Wan-Fan Hospital, Taipei, Taiwan
| | - Chien-Min Lin
- Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
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Tai PA, Tu YK, Liu HM. Surgical treatment of spinal arteriovenous malformations: vascular anatomy and surgical outcome. J Formos Med Assoc 2001; 100:389-96. [PMID: 11480248] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
BACKGROUND AND PURPOSE Spinal arteriovenous malformations (AVMs) are rare but debilitating lesions of the central nervous system. This study evaluated the outcome in patients with spinal AVMs treated surgically, and the relationship between outcome and the vascular anatomy of the lesions. METHODS These AVMs were classified into four types: dural AVM (type I), glomus AVM (type II), juvenile AVM (type III), and intradural direct arteriovenous fistula (type IV). Either interruption of the feeding vessels or excision of the AVMs was performed in all patients. RESULTS Intradural AVMs manifested as subarachnoid or intramedullary hemorrhages, whereas dural AVM manifested as epidural hemorrhage in two patients, and as an episode of subarachnoid hemorrhage in one patient. The nidus in five of the six dural AVMs was below the mid-thoracic level. In six of the seven patients with intradural AVMs, the nidus was located in the cervical region. The prognosis of patients with dural AVMs was generally good, but in patients with intradural AVMs, motor recovery was worse and resection was more difficult. CONCLUSIONS Correct diagnosis and classification of spinal AVMs are the key prerequisites for successful treatment. The surgical outcome is closely related to the vascular anatomy of the lesion. For dural AVMs, only surgical interruption of the arteriovenous shunting at the dural sleeve of the nerve is required and good surgical results are often obtained. Intradural direct arteriovenous fistula responded well to surgery, whereas combined endovascular and microsurgical techniques can minimize the chance of rebleeding in intramedullary AVMs.
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Affiliation(s)
- P A Tai
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
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