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Yang YC, Hsieh MH, Chien JT, Liu KC, Yang CC. Outcomes of FETD versus UBE in the treatment of L5S1 foraminal stenosis: A comparative study. Heliyon 2024; 10:e27592. [PMID: 38501004 PMCID: PMC10945252 DOI: 10.1016/j.heliyon.2024.e27592] [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: 12/21/2023] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/20/2024] Open
Abstract
Background The L5S1 level exhibits unique anatomical features compared with other levels. This makes minimally invasive surgery for L5S1 foraminal stenosis (FS) challenging. This study compared the surgical outcomes of full endoscopic transforaminal decompression (FETD) and unilateral biportal endoscopy with the far-lateral approach (UBEFLA) in patients with L5S1FS. Methods In this retrospective study, 49 patients with L5S1FS were divided into two groups. Of these, 24 patients underwent FETD, 25 patients underwent UBEFLA. The study assessed demographic data, leg pain visual analog scale (VAS) score, back pain VAS score, Oswestry Disability Index (ODI), modified MacNab outcome scale, and radiographic parameters including postoperative lateral facet preservation (POLFP). Results The Mann-Whitney U test revealed that the UBEFLA group exhibited a higher VAS score for back pain at one week after the operation, whereas the FETD group exhibited a higher leg pain VAS score 6 weeks after the operation. All four undesired MacNab outcomes in the FETD group were attributed to residual leg pain, whereas all five undesired MacNab outcomes in the UBEFLA group were due to recurrent symptoms. Radiographically, the FETD group exhibited greater POLFP. Conclusions When L5S1FS is performed, there may be challenges in adequately clearing the foraminal space in FETD. On the other hand, UBEFLA allowed for a more comprehensive clearance. However, this advantage of UBEFLA was associated with spinal instability as a future outcome.
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Affiliation(s)
- Yao-Chun Yang
- National Taiwan University School of Medicine, Taiwan
| | - Min-Hong Hsieh
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
| | - Jui-Teng Chien
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
| | - Keng-Chang Liu
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
| | - Chang-Chen Yang
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
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2
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Yang YC, Hsieh MH, Chien JT, Liu KC, Yang CC. Reply on "teriparatide treatment for postmenopausal women with sacral insufficiency fracture". Osteoporos Sarcopenia 2023; 9:77. [PMID: 37496987 PMCID: PMC10366424 DOI: 10.1016/j.afos.2023.05.004] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 07/28/2023] Open
Affiliation(s)
- Yao-Chun Yang
- National Taiwan University School of Medicine, Taiwan
| | - Min-Hong Hsieh
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
| | - Jui-Teng Chien
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
| | - Keng-Chang Liu
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
| | - Chang-Chen Yang
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
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Yang YC, Hsieh MH, Chien JT, Liu KC, Yang CC. Teriparatide treatment shows faster healing than sacroplasty for postmenopausal women with sacral insufficiency fracture. Osteoporos Sarcopenia 2023; 9:27-31. [PMID: 37082353 PMCID: PMC10111959 DOI: 10.1016/j.afos.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/06/2023] [Accepted: 02/03/2023] [Indexed: 04/22/2023] Open
Abstract
Objectives Sacral insufficiency fracture (SIF) is not an uncommon osteoporosis fracture among the elderly. Aside from traditional treatments, sacroplasty and teriparatide (TPTD) injection have been introduced. This report aims to compare the effects of sacroplasty and teriparatide on clinical outcomes of SIF. Methods Thirty-one elderly patients with SIF were enrolled in this retrospective observational study. Four male patients were excluded. Fourteen patients who received TPTD for 6 months were classified into the TPTD group (TT), and 13 who underwent sacroplasty were classified into the sacroplasty group (SS). All patients in both groups were instructed to take calcium and vitamin D supplements daily. Their symptoms and signs, visual analog score (VAS), Oswestry disability index (ODI), and radiographic studies were retrospectively reviewed. Results The TT group showed significantly lower VAS than SS group after 3 (P < 0.001) and 6 months of treatment (P < 0.001). The TT group also has significant lower ODI than SS group after 1 (P = 0.010), 3 (P = 0.005) and 6 months (P < 0.001) of treatment. Upon generalized estimating equations (GEE) analysis, the TT group showed significantly more reduction in both VAS and ODI compared to the SS group at 1 month (P = 0.022, P = 0.001), 3 months (P < 0.001, P < 0.001), and 6 months (P < 0.001, P < 0.001) post-treatment. Conclusions Postmenoposal woman with SIF who received TPTD healed better than those who underwent sacroplasty after 1 month treatment.
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Affiliation(s)
- Yao-Chun Yang
- National Taiwan University, School of Medicine, Taiwan
| | - Min-Hong Hsieh
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
| | - Jui-Teng Chien
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
| | - Keng-Chang Liu
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
| | - Chang-Chen Yang
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, 62247, Taiwan
- School of Medicine, Tzu Chi University, 97071, Taiwan
- Corresponding author. Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Minsheng Rd., Dalin Township, Chiayi County, 62247, Taiwan.
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Chien JT, Chiang YS, Chen SH, Liu KC, Yang CC. Nail-stem construct method for periprosthetic humeral fractures with recalcitrant nonunion after total elbow arthroplasty: A surgical technique. Tzu Chi Med J 2023. [DOI: 10.4103/tcmj.tcmj_193_22] [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: 02/22/2023] Open
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Chien JT, Hsieh MH, Yang CC, Chen IH, Lee RP. Anterior Cervical Discectomy and Fusion Versus Conservative Treatment for Cervical Angina Conservative Treatment. Clin Spine Surg 2021; 34:E514-E521. [PMID: 33828047 PMCID: PMC8560149 DOI: 10.1097/bsd.0000000000001178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 02/24/2021] [Indexed: 11/26/2022]
Abstract
STUDY DESIGN This study employed a retrospective study design. OBJECTIVE This retrospective cohort study aimed to compare the outcomes of anterior cervical discectomy and fusion (ACDF), and those of conservative treatment for patients with cervical angina. SUMMARY OF BACKGROUND DATA Cervical angina is typically characterized by intolerable and paroxysmal angina-like precordial pain, which is caused by cervical disk degeneration in patients without definitive cardiovascular abnormalities. Diagnosis is either delayed or neglected because of its various clinical manifestations. Whether conservative or surgical treatment is appropriate remains controversial because of the lack of comparative studies. MATERIALS AND METHODS From 2009 to 2016, 163 patients with cervical angina with advanced chest pain, tightness, or palpitation were retrospectively studied. Twenty-three patients underwent ACDF, and the other 140 patients were treated nonsurgically by medication, physical therapy, collar immobilization, or stellate ganglion block. Japanese Orthopedic Association (JOA) score and 20-point autonomic nervous system (ANS) score were assessed pretreatment and posttreatment. Patients' satisfaction was assessed using the Odom criteria. RESULTS The average age of the patients was 50 years, and most of them were females. The average follow-up was 25.5 months. The pretreatment JOA and 20-point ANS scores in the conservative and ACDF groups were 13.3 versus 11.7 (P=0.110) and 13.0 versus 13.3 (P=0.928), respectively. Generalized estimating equation analysis showed that posttreatment JOA and ANS scores at each observation interval improved significantly in the ACDF group (P<0.001). Angina-like symptoms also improved significantly in the ACDF group (P<0.001). During an average 2-year follow-up, good or excellent results were obtained in 78.2% of surgical patients and 35% of nonsurgical patients. CONCLUSIONS Compared with conservative therapy, surgical treatment with ACDF for cervical angina provided better and more consistent relief from angina-like symptoms and overall sympathetic symptoms. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Jui-Teng Chien
- Institute of Medical Sciences, Tzu Chi University, Hualien
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi
- School of Medicine, Tzu Chi University
| | - Min-Hong Hsieh
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi
| | - Chang-Chen Yang
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi
- School of Medicine, Tzu Chi University
| | - Ing-Ho Chen
- Institute of Medical Sciences, Tzu Chi University, Hualien
- School of Medicine, Tzu Chi University
- Department of Orthopedics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Ru-Ping Lee
- Institute of Medical Sciences, Tzu Chi University, Hualien
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6
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Liu CH, Raj S, Chen CH, Hung KH, Chou CT, Chen IH, Chien JT, Lin IY, Yang SY, Angata T, Tsai WC, Wei JCC, Tzeng IS, Hung SC, Lin KI. HLA-B27-mediated activation of TNAP phosphatase promotes pathogenic syndesmophyte formation in ankylosing spondylitis. J Clin Invest 2020; 129:5357-5373. [PMID: 31682238 DOI: 10.1172/jci125212] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 09/03/2019] [Indexed: 12/31/2022] Open
Abstract
Ankylosing spondylitis (AS) is a type of axial inflammation. Over time, some patients develop spinal ankylosis and permanent disability; however, current treatment strategies cannot arrest syndesmophyte formation completely. Here, we used mesenchymal stem cells (MSCs) from AS patients (AS MSCs) within the enthesis involved in spinal ankylosis to delineate that the HLA-B27-mediated spliced X-box-binding protein 1 (sXBP1)/retinoic acid receptor-β (RARB)/tissue-nonspecific alkaline phosphatase (TNAP) axis accelerated the mineralization of AS MSCs, which was independent of Runt-related transcription factor 2 (Runx2). An animal model mimicking AS pathological bony appositions was established by implantation of AS MSCs into the lumbar spine of NOD-SCID mice. We found that TNAP inhibitors, including levamisole and pamidronate, inhibited AS MSC mineralization in vitro and blocked bony appositions in vivo. Furthermore, we demonstrated that the serum bone-specific TNAP (BAP) level was a potential prognostic biomarker to predict AS patients with a high risk for radiographic progression. Our study highlights the importance of the HLA-B27-mediated activation of the sXBP1/RARB/TNAP axis in AS syndesmophyte pathogenesis and provides a new strategy for the diagnosis and prevention of radiographic progression of AS.
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Affiliation(s)
- Chin-Hsiu Liu
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan.,PhD Program in Translational Medicine, Kaohsiung Medical University and Academia Sinica, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Sengupta Raj
- Royal National Hospital for Rheumatic Diseases, Upper Borough Walls, Bath, United Kingdom
| | - Chun-Hsiung Chen
- Division of Allergy, Immunology and Rheumatology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Kuo-Hsuan Hung
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chung-Tei Chou
- National Yang-Ming University, Taipei, Taiwan.,Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ing-Ho Chen
- School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Orthopedics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Jui-Teng Chien
- School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Orthopedics, Chiayi Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi County, Taiwan
| | - I-Ying Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Shii-Yi Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Takashi Angata
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Wen-Chan Tsai
- Division of Rheumatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - James Cheng-Chung Wei
- Institute of Medicine, Chung Shan Medical University and Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Shih-Chieh Hung
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Integrative Stem Cell Center, Department of Orthopedics, China Medical University Hospital, Taichung, Taiwan.,Institute of New Drug Development, New Drug Development Center, China Medical University, Taichung, Taiwan
| | - Kuo-I Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
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7
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Lin PH, Chien JT, Hung JP, Hong CK, Tsai TY, Yang CC. Unstable intertrochanteric fractures are associated with a greater hemoglobin drop during the perioperative period: a retrospective case control study. BMC Musculoskelet Disord 2020; 21:244. [PMID: 32293388 PMCID: PMC7158073 DOI: 10.1186/s12891-020-03208-2] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 03/12/2020] [Indexed: 11/23/2022] Open
Abstract
Background With an increase in the elderly population, the occurrence of hip fractures, femoral neck fractures, and intertrochanteric fractures (ITFs) is also increasing. It is important to establish effective perioperative methods that would help reduce the morbidity and mortality rates associated with ITFs. The purpose of this study was to determine the effects of ITFs according to the AO classification for perioperative hemoglobin drop. Methods Seventy-six patients with ITFs classified as AO 31-A1 or A2 and fixated with intramedullary nails participated in this retrospective cohort study. Medical records of these patients were retrospectively reviewed from September 2016 to August 2018. The perioperative hemoglobin drop was chosen as the main outcome measure and calculated as the difference between pre- and postoperative hemoglobin levels. Multivariate linear regression analysis was performed and included the following variables: AO classification (A1.1-A2.1 [stable] vs. A2.2-A2.3 [unstable]), time interval between injury and surgery, age, body mass index, and the use of anticoagulants. Results Among the 76 patients who met the inclusion criteria, a significantly higher hemoglobin drop was observed in the AO 31 A2.2-A2.3 (unstable) group than in the AO 31 A1.1-A2.1 (stable) group (p = 0.04). The multivariate analysis also showed a greater hemoglobin drop in the unstable group (p < 0.05). Conclusions Patients with unstable ITFs exhibited a greater hemoglobin drop and a hidden blood loss was suspected around the fracture site. We believe that this should be taken into consideration when presurgical blood transfusion is being planned for patients with unstable ITFs, to reduce associated postoperative complications, especially in patients with severe anemia or high risk of mortality.
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Affiliation(s)
- Po-Hsun Lin
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Min-Sheng Road, Dalin Town, Chia-Yi, Taiwan
| | - Jui-Teng Chien
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Min-Sheng Road, Dalin Town, Chia-Yi, Taiwan.,Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Jung-Pin Hung
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Min-Sheng Road, Dalin Town, Chia-Yi, Taiwan
| | - Chih-Kai Hong
- Department of Orthopedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tzung-Yi Tsai
- Department of Medical Research, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Min-Sheng Road, Dalin Town, Chia-Yi, Taiwan. .,Department of Nursing, Tzu Chi University of Science and Technology, Hualien, Taiwan.
| | - Chang-Chen Yang
- Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Min-Sheng Road, Dalin Town, Chia-Yi, Taiwan. .,Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.
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Yang CC, Chien JT, Tsai TY, Yeh KT, Lee RP, Wu WT. Earlier Vertebroplasty for Osteoporotic Thoracolumbar Compression Fracture May Minimize the Subsequent Development of Adjacent Fractures: A Retrospective Study. Pain Physician 2018; 21:E483-E491. [PMID: 30282396] [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: 06/08/2023]
Abstract
BACKGROUND Percutaneous vertebroplasty (PVP) is widely used to treat osteoporotic vertebral compression fractures (OVCFs). The influence of timing (early vs. late) of PVP on the development of adjacent vertebral fractures (AVF) has rarely been discussed. OBJECTIVE This study aimed to compare the incidence of AVF among patients who received early PVP (= 30 days after symptom onset, EPVP) or late PVP (> 30 days after symptom onset, LPVP) in the thoracolumbar region (T10 to L2) after a 1-year follow up. STUDY DESIGN A retrospective cohort study. SETTING Department of Orthopedic, an affiliated hospital of a medical university. METHODS Patients who had single-level, T-score = -2.5 of lumbar bone mineral density (BMD), primary OVCF in the thoracolumbar region (T10 to L2) and who received PVP between July 2012 and June 2014 were included in the study. They were divided into early PVP and late PVP groups according to the interval between symptom onset and treatment. The risk factors associated with subsequent AVFs were analyzed. RESULTS Of the 225 patients reviewed, 124 met the criteria and were followed for a minimum of 1 year. Eleven patients (14.1%) in the EPVP group (n = 78) and 18 patients (39.1%) in the LPVP group (n = 46) experienced an AVF during the first year following vertebroplasty. Outcomes were significantly better in patients with higher bone mineral density, lower cement volume, and without cement leakage (P < 0.01). Cox regression indicated an increase risk for AVF for LPVP, with an adjusted hazard ratio of 6.08 (95% confidence interval: 2.50-14.81). LIMITATION The incidence of AVFs could be over estimated due to this being a retrospective study with a small case number and lack of either biomechanical study of intra-vertebral cement distribution by times to support the result. CONCLUSIONS Compared with later interventions, PVP performed within 30 days after fracture development may be associated with a lower risk of adjacent fractures in the thoracolumbar region. KEY WORDS Percutaneous vertebroplasty, osteoporosis, osteoporotic vertebral compression fracture, adjacent vertebral fracture.
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Affiliation(s)
- Chang-Chen Yang
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Jui-Teng Chien
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Department of Orthopedics, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Tzung-Yi Tsai
- Department of Medical Research, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Kuang-Ting Yeh
- School of Medicine, Tzu Chi University, Hualien, Taiwan; Department of Orthopedics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Ru-Ping Lee
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Wen-Tien Wu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan; Department of Orthopedics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
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Chang LY, Tsai KS, Peng JK, Chen CH, Lin GT, Lin CH, Tu ST, Mao IC, Gau YL, Liu HC, Niu CC, Hsieh MH, Chien JT, Hung WC, Yang RS, Wu CH, Chan DC. The development of Taiwan Fracture Liaison Service network. Osteoporos Sarcopenia 2018; 4:47-52. [PMID: 30775542 PMCID: PMC6362955 DOI: 10.1016/j.afos.2018.06.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 04/17/2018] [Revised: 05/11/2018] [Accepted: 06/03/2018] [Indexed: 11/29/2022] Open
Abstract
Osteoporosis and its associated fragility fractures are becoming a severe burden in the healthcare system globally. In the Asian-Pacific (AP) region, the rapidly increasing in aging population is the main reason accounting for the burden. Moreover, the paucity of quality care for osteoporosis continues to be an ongoing challenge. The Fracture Liaison Service (FLS) is a program promoted by International Osteoporosis Foundation (IOF) with a goal to improve quality of postfracture care and prevention of secondary fractures. In this review article, we would like to introduce the Taiwan FLS network. The first 2 programs were initiated in 2014 at the National Taiwan University Hospital and its affiliated Bei-Hu branch. Since then, the Taiwan FLS program has continued to grow exponentially. Through FLS workshops promoted by the Taiwanese Osteoporosis Association (TOA), program mentors have been able to share their valuable knowledge and clinical experience in order to promote establishments of additional programs. With 22 FLS sites including 11 successfully accredited on the best practice map, Taiwan remains as one of the highest FLS coverage countries in the AP region, and was also granted the IOF Best Secondary Fracture Prevention Promotion award in 2017. Despite challenges faced by the TOA, we strive to promote more FLS sites in Taiwan with a main goal of ameliorating further health burden in managing osteoporotic patients.
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Affiliation(s)
- Lo-Yu Chang
- School of Medicine, National Taiwan University, Taipei, Taiwan
| | - Keh-Sung Tsai
- Superintendent Office, Far Eastern Polyclinic of Far Eastern Medical Foundation, Taipei, Taiwan
| | - Jen-Kuei Peng
- Department of Family Medicine, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan
| | - Chung-Hwan Chen
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Gau-Tyan Lin
- Department of Orthopaedics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chin-Hsueh Lin
- Department of Geriatric Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shih-Te Tu
- Department of Endocrinology and Metabolism, Changhua Christian Hospital, Changhua City, Taiwan
| | - I-Chieh Mao
- Department of Endocrinology and Metabolism, Changhua Christian Hospital, Changhua City, Taiwan
| | - Yih-Lan Gau
- Department of Orthopaedics, Taitung Christian Hospital, Taitung City, Taiwan
| | - Hsusan-Chih Liu
- Department of Orthopaedics, Taitung Christian Hospital, Taitung City, Taiwan
| | - Chi-Chien Niu
- Department of Orthopaedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Min-Hong Hsieh
- Department of Orthopaedics, Dalin Tzu Chi Hospital, Chiayi County, Taiwan
| | - Jui-Teng Chien
- Department of Orthopaedics, Dalin Tzu Chi Hospital, Chiayi County, Taiwan
| | - Wei-Chieh Hung
- Department of Family Medicine, E-Da Hospital, Kaohsiung, Taiwan
| | - Rong-Sen Yang
- Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Hsing Wu
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ding-Cheng Chan
- Superintendent Office, National Taiwan University Hospital Chu-Tung Branch, Hsinchu County, Taiwan
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Wu CH, Tu ST, Chang YF, Chan DC, Chien JT, Lin CH, Singh S, Dasari M, Chen JF, Tsai KS. Fracture liaison services improve outcomes of patients with osteoporosis-related fractures: A systematic literature review and meta-analysis. Bone 2018; 111:92-100. [PMID: 29555309 DOI: 10.1016/j.bone.2018.03.018] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [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: 11/01/2017] [Revised: 03/14/2018] [Accepted: 03/15/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVES This systematic review and meta-analysis evaluated the outcomes of patients with osteoporosis-related fractures managed through fracture liaison services (FLS) programs. METHODS Medline, PubMed, EMBASE, and the Cochrane Library were searched (January 2000-February 2017 inclusive) using the keywords 'osteoporosis', 'fractures', 'liaison', and 'service' to identify randomised controlled trials and observational studies of patients aged ≥50years with osteoporosis-related fractures in hospital, clinic, community, or home-based settings who were managed using FLS. Risk of bias was assessed at outcome level. Meta-analysis followed a random-effects and fixed-effects model. Outcomes of interest were incidence of bone mineral density (BMD) testing, treatment initiation, adherence, re-fractures, and mortality due to osteoporosis treatment. RESULTS A total of 159 publications were identified for the systematic literature review; 74 controlled studies (16 RCTs; 58 observational studies) were included in the meta-analysis. Overall, 41 of 58 observational studies and 12 of 16 RCTs were considered of high quality. Compared with patients receiving usual care (or those in the control arm), patients receiving care from an FLS program had higher rates of BMD testing (48.0% vs 23.5%) and treatment initiation (38.0% vs 17.2%) and greater adherence (57.0% vs 34.1%). Unweighted average rates of re-fracture were 13.4% among patients in the control arm and 6.4% in the FLS arm. Unweighted average rates of mortality were 15.8% in the control arm and 10.4% in the FLS arm. Meta-analysis revealed significant FLS-associated improvements in all outcomes versus non-FLS controls, with BMD testing increased by 24 percentage points (95% confidence interval [CI] 0.18-0.29), 20 percentage points for treatment rates (95% CI 0.16-0.25), and 22 percentage points for adherence (95% CI 0.13-0.31) and absolute risk of re-fracture reduced by five percentage points (95% CI -0.08 to -0.03) and mortality reduced by three percentage points (95% CI -0.05 to -0.01). CONCLUSION FLS programs improved outcomes of osteoporosis-related fractures, with significant increases in BMD testing, treatment initiation, and adherence to treatment and reductions in re-fracture incidence and mortality.
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Affiliation(s)
- Chih-Hsing Wu
- Department of Family Medicine, National Cheng Kung University College of Medicine and Hospital, 138 Sheng-Li Road, Tainan 70428, Taiwan; Institute of Gerontology, National Cheng Kung University College of Medicine, 138 Sheng-Li Road, Tainan 70428, Taiwan.
| | - Shih-Te Tu
- Changhua Christian Hospital, LuKang Branch, 135 Nanhsiao Street, Changhua City 500, Taiwan.
| | - Yin-Fan Chang
- Department of Family Medicine, National Cheng Kung University College of Medicine and Hospital, 138 Sheng-Li Road, Tainan 70428, Taiwan.
| | - Ding-Cheng Chan
- National Taiwan University Hospital Chu-Tung Branch, No. 52 Jshan Rd, Hsinchu County 31064, Taiwan; Department of Geriatrics and Gerontology, National Taiwan University Hospital, No. 7 Chung Shan S Road, Taipei City 10002, Taiwan; Department of Internal Medicine, National Taiwan University Hospital, No. 1 Changde St, Zongzheng District, Taipei City 10048, Taiwan
| | - Jui-Teng Chien
- Buddhist Dalin Tzuchi Hospital, 2, Min-Sheng Rd., Dalin, Chiayi, Taiwan
| | - Chih-Hsueh Lin
- Department of Family Medicine, China Medical University Hospital, No. 2 Yuh Der Road, Taichung, Taiwan.
| | - Sonal Singh
- Department of Family Medicine and Community Health, Meyers Primary Care Institute, University of Massachusetts Medical School, 55 Lake Ave North, Worcester, MA 01655-0002, USA.
| | - Manikanta Dasari
- Complete HEOR Solutions, LLC.1046 Knapp Road, North Wales, PA 19454, USA.
| | - Jung-Fu Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, 123 Ta-Pei Road, Niao-Sung District, Kaohsiung City, Taiwan.
| | - Keh-Sung Tsai
- Department of Internal Medicine, National Taiwan University Hospital, 7 Zhong Shan South Road, Taipei 10048, Taiwan.
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Tai TW, Su FC, Chien JT, Lee JS, Huang YH, Lin CL, Jou IM. Changes in excursion and strain in the rat sciatic nerve under cauda equina compression induced by epidural balloon inflation. Spine J 2015; 15:329-35. [PMID: 25463401 DOI: 10.1016/j.spinee.2014.10.006] [Citation(s) in RCA: 3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 09/06/2014] [Accepted: 10/07/2014] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Healthy nerves are able to stretch and glide as responses to normal physiological movement. Injury to the nerve may alter the nerve's mechanical properties and result in neuropathy. Whether cauda equina compression alters the mechanical properties of the sciatic nerve is still unclear. PURPOSE The purpose of this study was to demonstrate the changes in excursions and strains of the sciatic nerve in vivo after acute cauda equina compression was induced by epidural balloon compression. STUDY DESIGN An animal comparative study with induced cauda equina compression was designed for in situ measurements of nerve properties. METHODS Twenty-six adult Sprague-Dawley rats were divided into three groups. The balloon group (n=10) underwent epidural compression induced by inflation of an embolectomy balloon catheter that was inserted through an L6 laminotomy. The control group (n=10) underwent laminotomy but without compression. The normal group (n=6) received no back surgery. This model of neuropathy was confirmed with electrophysiological examination. The excursions and strains of the sciatic nerve in response to the modified straight leg-raising (SLR) test were measured in situ and analyzed. RESULTS The scales of the excursions were lower in the balloon group than in the other two groups, in both 90° flexion and extension of the knee. The balloon group was more sensitive to positional changes. The strain was significantly higher under the condition of epidural balloon compression. CONCLUSIONS We concluded that cauda equina compression decreased the excursion and increased the strain of the sciatic nerve in response to a modified SLR test. These findings might indicate one of the mechanisms of the pain provoked by the SLR test and also possibly contribute to an understanding of the pathogenesis of the neuropathy in the lower limbs of patients with cauda equina compression.
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Affiliation(s)
- Ta-Wei Tai
- Institute of Biomedical Engineering, National Cheng Kung University, 1 Daxue Rd., Tainan 70428, Taiwan; Department of Orthopaedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Rd, Tainan 70428, Taiwan
| | - Fong-Chin Su
- Institute of Biomedical Engineering, National Cheng Kung University, 1 Daxue Rd., Tainan 70428, Taiwan
| | - Jui-Teng Chien
- Department of Orthopaedics, Buddhist Dalin Tzuchi General Hospital, 2, Minsheng Rd., Dalin Township, Chiayi, Taiwan
| | - Jung-Shun Lee
- Department of Neurosurgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Rd, Tainan 70428, Taiwan
| | - Yi-Hung Huang
- Department of Orthopedics, Chia Yi Christian Hospital, 539, Zhongxiao Rd., East Dist., Chiayi City 600, Taiwan; Department of Sports Management, Chia Nan University of Pharmacy & Science, 60, Sec. 1, Erren Rd., Rende Dist., Tainan City 717, Taiwan
| | - Cheng-Li Lin
- Institute of Biomedical Engineering, National Cheng Kung University, 1 Daxue Rd., Tainan 70428, Taiwan; Department of Orthopaedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Rd, Tainan 70428, Taiwan
| | - I-Ming Jou
- Department of Orthopaedics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Rd, Tainan 70428, Taiwan.
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Chen YC, Chien JT, Inbaraj BS, Chen BH. Formation and inhibition of cholesterol oxidation products during marinating of pig feet. J Agric Food Chem 2012; 60:173-179. [PMID: 22117593 DOI: 10.1021/jf204158a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Cholesterol oxidation products (COPs), formed during the heating of cholesterol-rich foods, have been shown to cause cancer and coronary heart disease. The objectives of this study were to develop a GC-MS method for the determination of COPs in pig feet meat, skin, and juice during marinating and to study the formation and inhibition of COPs as affected by the incorporation of soy sauce and sugar. Results showed that an HP-5MS column could provide an adequate separation of cholesterol, 5α-cholestane (internal standard), and seven COPs, including 7α-OH, 7β-OH, 5,6β-OH, 5,6α-OH, triol, 25-OH, and 7-keto, within 15 min with a temperature-programming method. Most COPs in pig feet meat were generated at a larger amount than in pig feet skin and marinating juice over a 24 h heating period at about 100 °C. The Maillard browning index rose with increasing heating time, whereas the pH showed a slight change in marinated juice. Both reducing sugar and free amino acid contributed to the formation of Maillard reaction products. The incorporation of soy sauce and crystal sugar into fresh juice was effective in inhibiting COPs formation in pig feet, skin, and juice over a 30 min preheating period.
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Affiliation(s)
- Y C Chen
- Department of Food Science, Fu Jen University, Taipei 242, Taiwan
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Chien JT, Hsiao FT, Chen YC, Chen YH, Lay CJ, Tsai CC. Three cases of successful treatment of granulomatous tenosynovitis. Tzu Chi Med J 2011. [DOI: 10.1016/j.tcmj.2011.10.002] [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: 10/15/2022] Open
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Chen LJ, Lu YF, Chien JT, Chen BH. Formation and inhibition of cholesterol oxidation products in tea-leaf eggs during marinating. J Agric Food Chem 2010; 58:10467-10474. [PMID: 20828157 DOI: 10.1021/jf102487j] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The objectives of this study were to develop a GC-MS method for determination of cholesterol oxidation products (COPs) in tea-leaf eggs and study the formation and inhibition of COPs as affected by heating time and various ingredients in marinated juice. The various COPs in egg and juice samples were extracted by a solvent system of chloroform/methanol (2:1, v/v), followed by purification using a silica cartridge and GC-MS for subsequent separation and quantitation, with high recovery ranges from 85.9 to 98.3% and from 83.1-100.1% being obtained for egg and juice, respectively. 5α-Cholestane was shown to be an appropriate internal standard for quantitation. A total of five COPs, including 7-keto, 5,6 β-EP, 7α-OH, 7β-OH, and triol, were formed in tea-leaf eggs during marinating, but not in marinated juice. A peak level of total COPs (2272.2 ng/g) was generated in tea-leaf eggs after 24 h of heating, but reduced to 1068.2 ng/g in 48 h. Both the total phenolic and flavonoid compounds in tea-leaf eggs showed a time-dependent increase during marinating and so did the pH and browning index in tea-leaf eggs and juice. The incorporation of soy sauce or black tea leaf into juice was effective in inhibiting COPs formation in tea-leaf eggs, with the latter being more pronounced than the former. The formation of Maillard reaction products during marinating as well as the presence of total phenolic and total flavonoid in black tea leaf was mainly responsible for COPs reduction in tea-leaf eggs.
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Affiliation(s)
- L J Chen
- Department of Food Science, Fu Jen University, Taipei 242, Taiwan
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Abstract
Haemophilus aphrophilus is one of the normal oropharyngeal flora and rarely implicated as a pathogen of spinal infection. A case of H. aphrophilus bacteremia complicated with epidural abscess, psoas muscle abscess, and spondylodiscitis is described in this report. The pathogen was mis-identified as Pasteurella spp. at the very start, and was confirmed by the molecular method. He was successfully treated with adequate antibiotics and surgery. The clinical features of sixteen previously reported cases of spinal infection caused by H. aphrophilus are reviewed.
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Affiliation(s)
- Jui-Teng Chien
- Department of Orthopedics, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan, ROC
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Lai YY, Chien JT, Huang SJ. Fiberoptic intubation with patients in sitting position. Acta Anaesthesiol Taiwan 2007; 45:169-173. [PMID: 17972620] [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: 05/25/2023]
Abstract
Flexible fiberoptic endoscope is the most valuable tool for anesthesiologists to manage difficult airways. Correctly positioning of the patient during fiberoptic intubation aids the clinician to rapidly secure the airway, because it not only saves time, but also minimizes the risk of repeated attempts of intubation with possible serious consequences in the wake. In general, fiberoptic intubation is carried out with the patient in the supine position, but there are situations in which the intubation requires the subjects to be in the sitting position. The sitting position also changes the position of performing anesthesiologist relative to the patient, presenting an inverse view contrary to that of traditional laryngoscopy. We can often obtain a superior view from fiberoptic intubation. Fiberoptic intubation in the sitting position can be applied to all patients, as long as there is no contraindication of having a patient be sat.
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Affiliation(s)
- Yu-Yung Lai
- Departments of Anesthesiology, Buddhist Dalin Tzu Chi General Hospital, Hualian, Taiwan, ROC
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Chiu YT, Chiu CP, Chien JT, Ho GH, Yang J, Chen BH. Encapsulation of lycopene extract from tomato pulp waste with gelatin and poly(gamma-glutamic acid) as carrier. J Agric Food Chem 2007; 55:5123-30. [PMID: 17542604 DOI: 10.1021/jf0700069] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Tomato pulp waste, a byproduct obtained during the processing of tomato juice, has been shown to be a rich source of lycopene. The objectives of this study were to use gelatin and poly(gamma-glutamic acid) (gamma-PGA) as coating materials for the encapsulation of lycopene extract from tomato pulp waste. Initially, lycopene was extracted with supercritical carbon dioxide, followed by microencapsulation using an emulsion system consisting of 4.5% gelatin, 10% gamma-PGA, and 4.8% lycopene extract. Analysis of differential scanning calorimetry revealed that the thermal stability of the coating material could be up to 120 degrees C, with a mean particle size of 38.7 microm based on Coulter counter analysis. The total weight of microencapsulated powder was 617 microg with the yield of lycopene being 76.5%, indicating a 23.5% loss during freeze drying. During storage of microencapsulated powder, the concentrations of cis-, trans-, and total lycopene decreased along with increasing time and temperature. A fast release of lycopene in the powder occurred at pH 5.5 and 7.0, while no lycopene was released at pH 2.0 and 3.5.
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Affiliation(s)
- Y T Chiu
- Department of Nutrition and Food Sciences, Fu Jen University, Taipei 242, Taiwan
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Inbaraj BS, Chien JT, Chen BH. Improved high performance liquid chromatographic method for determination of carotenoids in the microalga Chlorella pyrenoidosa. J Chromatogr A 2006; 1102:193-9. [PMID: 16298378 DOI: 10.1016/j.chroma.2005.10.055] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2005] [Revised: 09/23/2005] [Accepted: 10/26/2005] [Indexed: 10/25/2022]
Abstract
Microalgae have become an important commercial source of carotenoids and microalgae-derived functional foods are consumed by people worldwide. Therefore, an HPLC method was developed to discern the variety and content of carotenoids in the microalga Chlorella pyrenoidosa. The microalga sample was powdered, extracted, saponified and subjected to HPLC analysis. A mobile phase of methanol-acetonitrile-water (84:14:2, v/v/v) (A) and methylene chloride (100%) (B) with the following gradient elution was developed: 100% A and 0% B in the beginning, maintained for 14 min, decreased to 95% A in 25 min, 75% A in 30 min, 74% A in 35 min, 45% A in 50 min and returned to 100% A in 55 min. A total of 32 carotenoids were resolved within 49 min by using a C30 column with flow rate at 1 mL/min and detection at 450 nm. An internal standard beta-apo-8'-carotenal was used to quantify all the carotenoids. All-trans-lutein was present in exceptionally large amount (125034.4 microg/g), followed by cis isomers of lutein (27975.3 microg/g), all-trans-alpha-carotene (2465.8 microg/g), zeaxanthin (2170.3 microg/g), cis isomers of beta-carotene (2159.3 microg/g), all-trans-beta-carotene (2155.0 microg/g), cis isomers of alpha-carotene (1766.7 microg/g), beta-cryptoxanthin (334.9 microg/g), neoxanthin and its cis isomers (199.7 microg/g), neochrome (65.2 microg/g), auroxanthin (38.5 microg/g) and violaxanthin and its cis isomers (38.1 microg/g).
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Affiliation(s)
- B Stephen Inbaraj
- Department of Nutrition and Food Sciences, Fu Jen University, Taipei 242, Taiwan
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Abstract
STUDY DESIGN This was an in vivo and in vitro investigation of a minimally invasive posterior tether system for fusionless modulation of sagittal plane growth in an immature sheep model. OBJECTIVE To determine whether fusionless modulation of spinal growth in the sagittal plane of an immature sheep model can be successfully performed. SUMMARY OF BACKGROUND DATA Scheuermann's disease has been reported to affect 1% to 8% of the pediatric population. Varying degrees of spinal bone growth modulation has been successfully performed in the coronal plane of animal models. This represents the first attempt to modulate spinal growth in the sagittal plane in an animal model. Modulation of spinal growth in the sagittal plane may play a role in the treatment of pediatric kyphosis when brace treatment is unsuccessful. METHODS There were nine immature sheep posteriorly tethered and five control animals, all with identical follow-ups. Pedicle screws were placed in adjacent vertebrae, bilaterally, at the thoracolumbar junction and the lower lumbar spine. Polyethylene cords were passed subcutaneously, and tensioned to 20 lbs. Tethers were released in four sheep at 6 months and four at 12 months. At 12 months and 2 weeks, all animals were sacrificed. RESULTS At 13 months after surgery, the tethered groups had significantly less kyphosis and vertebral body wedging than the control group. In both the tethered groups, at 13 months after surgery, there was significantly less vertebral body wedging compared with the preoperative values. There was no evidence of facet arthropathy, but heterotopic ossification was seen in several specimens. Tethered spines had significantly less motion than control spines. Histologic evaluation demonstrated no detrimental results. CONCLUSIONS Fusionless modulation of sagittal plane growth in an immature sheep model was successfully performed with changes in the overall sagittal profile of the instrumented segments and vertebral body wedging. Increased stiffness of the instrumented segments posttether release was thought to be related to heterotopic ossification. Results suggest that this may be a potential treatment for adolescents with Scheuermann's disease.
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Chien JT, Chen IH, Lin KH. Atlantoaxial rotatory dislocation with hypoglossal nerve palsy in a patient with ankylosing spondylitis. A case report. J Bone Joint Surg Am 2005; 87:1587-90. [PMID: 15995128 DOI: 10.2106/jbjs.d.02667] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Jui-Teng Chien
- Department of Orthopedics, Buddhist Tzuchi Dalin General Hospital, 2 Min-Sheng Road, Dalin Town, Chiayi 622, Taiwan.
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Chowdhury I, Chien JT, Chatterjee A, Yu JYL. In vitro effects of mammalian leptin, neuropeptide-Y, β-endorphin and galanin on transcript levels of thyrotropin β and common α subunit mRNAs in the pituitary of bighead carp (aristichthys nobilis). Comp Biochem Physiol B Biochem Mol Biol 2004; 139:87-98. [PMID: 15364291 DOI: 10.1016/j.cbpc.2004.06.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2003] [Revised: 06/09/2004] [Accepted: 06/15/2004] [Indexed: 11/18/2022]
Abstract
Thyrotropin (thyroid stimulating hormone, TSH) is a member of the pituitary glycoprotein hormones, consisting of two dissimilar subunits, alpha and beta. The two subunits are produced by different genes and are regulated independently. We have previously cloned a TSHbeta cDNA from bighead carp pituitary and investigated its gene regulation. We report here the direct effects of mammalian TSH-releasing hormone (TRH), leptin, neuropeptide-Y (NPY), beta-endorphin and galanin on mRNA levels of both TSHbeta and alpha-subunits in the pituitary of bighead carp in vitro. The dispersed pituitary cells of bighead carp were incubated at 25 degrees C for 6 h with different doses of these factors. The relative mRNA levels of TSHbeta and alpha-subunits were estimated by traditional polymerase chain reaction (PCR) analysis and fluorescence real-time PCR analysis. The results revealed that mammalian TRH, leptin and beta-endorphin produced dose-dependent stimulatory effects on mRNA levels of both TSHbeta and alpha-subunits while thyroxine (T4) and mammalian galanin suppressed mRNA levels of both TSHbeta and alpha-subunits. NPY suppressed TSHbeta mRNA level, but stimulated alpha-subunit mRNA level. This study has demonstrated that mammalian TRH, leptin, NPY, beta-endorphin and galanin were active in modulating the steady-state mRNA levels of TSHbeta and alpha-subunits of bighead carp pituitary in vitro. The results suggest that endogenous TRH, leptin, NPY, beta-endorphin and galanin may modulate transcript levels of TSHbeta and alpha-subunits in pituitary of bighead carp.
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Affiliation(s)
- I Chowdhury
- Institute of Zoology, Academia Sinica, Endocrinology Laboratory, No. 128, Sec. 2, Academic Rd., Nan., Taipei, Taiwan 115, ROC
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Hsieh YL, Chatterjee A, Chien JT, Yu JY. Molecular cloning of the cDNAs for pituitary glycoprotein hormone alpha subunits of two species of duck and their gene regulation. J Mol Endocrinol 2001; 27:339-47. [PMID: 11719286 DOI: 10.1677/jme.0.0270339] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The cDNAs encoding pituitary glycoprotein hormone alpha subunits (PGHalphas) of two species of duck (Muscovy duck, Cairina moschata and Pekin duck, Anas platyrhynchos domesticus) were cloned and sequenced to better understand the phylogenic diversity and evolution of PGHalpha molecules in vertebrates. Oligonucleotide primers were designed and used for reverse transcription PCR (RT-PCR) amplification of PGHalpha cDNA fragments from total cellular RNA of pituitary glands. The remaining sequences were completed by rapid amplification of the cDNA ends. The nucleotide sequence of isolated PGHalpha cDNA of both ducks are identical, including 81 bp of 5' untranslated region (UTR), 360 bp of coding region, and 272 bp of 3'-UTR followed by a 13 bp poly(A)(+) tract. The total number of amino acids deduced from the cDNA of the duck PGHalpha is 120 with a signal peptide of 24 amino acids and a mature protein of 96 amino acids. PGHalphas of the ducks (order Anseriformes) share 96% homology of amino acid sequence in signal peptide, and 100% homology in mature proteins with chicken, quail and turkey (order Galliformes). Our data thus demonstrate identical inter-order homology of PGHalpha mature protein in birds. Ten cysteine residues, presumably forming five disulfide bonds within the alpha subunit, and four proline residues, presumably responsible for folding of the molecule, are conserved in the alpha subunit of ducks. Northern blot analysis revealed that PGHalpha mRNA is expressed only in the pituitary. In order to study factors regulating the gene expression of PGHalpha mRNA, duck pituitary fragments were incubated with GnRH, TRH, testosterone, or triiodothyronine (T(3)). GnRH and TRH increased, while testosterone and T(3) decreased, PGHalpha mRNA levels. This is the first report in birds of TRH up-regulation and down-regulation by testosterone and T(3) under in vitro conditions. The present study demonstrates both ducks have the same cDNA nucleotide and deduced amino acid sequences in the PGHalpha subunit, exhibiting identical inter-genus homology within the family of Anatidae. The findings from mRNA expression work suggest that hypothalamic GnRH and TRH up-regulate, while testosterone and T(3) down-regulate, PGHalpha gene expression in ducks.
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Affiliation(s)
- Y L Hsieh
- Endocrinology Laboratory, Institute of Zoology, Academia Sinica, Taipei, Taiwan 115, Republic of China
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Abstract
STUDY DESIGN This is a retrospective study of surgical correction of thoracolumbar kyphosis caused by ankylosing spondylitis. OBJECTIVE To report the surgical results of thoracolumbar kyphosis deformity corrected with transpedicular wedge osteotomy performed by a single surgeon at a university hospital. SUMMARY OF BACKGROUND DATA There has not been a large series in the literature reporting on results of the Thomasen-type closing wedge osteotomy for correction of kyphosis deformity secondary to ankylosing spondylitis, nor has two-level osteotomy of this type in one patient ever been described. METHODS From 1991 through 1998, 92 transpedicular wedge osteotomies were performed in 78 patients with ankylosing spondylitis for correction of fixed flexion deformity of the thoracolumbar spine. RESULTS The mean amount of correction for each level of osteotomy was 34.5 degrees (range, 15 degrees -60 degrees ). The largest amount of overall correction for a single patient was 100 degrees. Most of the osteotomies (64 of 92) were done at L2 and L3. Fourteen patients with severe deformity required staged two-level osteotomy. Excellent and good results were obtained in 77 patients (98.7%) at the final follow-up. There was no mortality, nor were there any major neurological complications. CONCLUSIONS Transpedicular wedge osteotomy can effectively and safely correct kyphotic deformity of the thoracolumbar spine caused by ankylosing spondylitis, regardless of rigidity of the spinal curves. Two-level osteotomy can provide sufficient correction for severe cases.
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Affiliation(s)
- I H Chen
- Department of Orthopedics, Tzu-Chi Medical Center, Hua-lien, Taiwan.
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