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Chen G, Wang T, Zhong L, He X, Huang C, Wang Y, Li K. Telemedicine for Preventing and Treating Pressure Injury after Spinal Cord Injury: A Systematic Review and Meta-analysis (Preprint). J Med Internet Res 2022; 24:e37618. [PMID: 36069842 PMCID: PMC9494222 DOI: 10.2196/37618] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/02/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
Background Objective Methods Results Conclusions
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Affiliation(s)
- Guilian Chen
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tong Wang
- School of Nursing, Sun Yat-Sen University, Guangzhou, China
| | - Lirong Zhong
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xinghui He
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chunxia Huang
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yingmin Wang
- Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kun Li
- School of Nursing, Sun Yat-Sen University, Guangzhou, China
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2
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Li XY, Lew CCH, Kek PC. Bone mineral density following liver transplantation: a 10-year trend analysis. Arch Osteoporos 2021; 16:169. [PMID: 34773174 DOI: 10.1007/s11657-021-01037-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/07/2021] [Indexed: 02/03/2023]
Abstract
UNLABELLED We evaluated the prevalence of osteoporosis and annual changes in bone mineral density (BMD) over 10 years post-liver transplantation. BMD in the lumbar spine improved significantly post-transplantation, reaching a 12% increase at year 10. In contrast, BMD in the femoral neck and hip deteriorated and did not return to baseline levels. INTRODUCTION This study (1) evaluated the prevalence of osteoporosis, and the annual changes in bone mineral density (BMD) over 10 years, and (2) identified the risk factors for worsened BMD in stable liver transplant recipients (LTRs). METHODS LTRs who underwent liver transplantation (LT) at Singapore General Hospital between February 2006 and Mar 2019 were included. Demographic, clinical data, and BMD in the lumbar spine (LS), femoral neck (FN), and total hip (TH) were collected retrospectively from the medical records. RESULTS Eighty-three patients (mean age: 55 ± 8 years) with a median follow-up of 80 months were included. The prevalence of osteoporosis increased significantly from 18.1% pre-LT to 34.3% post-LT (p = 0.021), and the incidence of osteoporosis was 18.2%. Worsened BMD (normal to osteopenia/osteopenia to osteoporosis) was found in 27.2% of LTRs. No significant risk factors were associated with worsened BMD, but females had a trend towards a higher odd (adjusted odds ratio: 3.54, 95%CI (0.61-20.5), p = 0.159). The LS BMD increased within 6-month post-LT and continued to improve throughout the entire follow-up period. In contrast, BMD in the FN and TH deteriorated and did not return to baseline levels post-LT. CONCLUSION Prevalence of osteoporosis increased significantly post-LT. Over a 10-year follow-up, 27.2% of LTRs had worsened BMD status, and a possible risk factor may be female gender. While the LS BMD improved with time, the BMD in the FN and TH persisted below baseline throughout the follow-up period. Future studies should explore long-term therapies to improve BMD in the FN and TH post-LT.
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Affiliation(s)
- Xiao Ying Li
- Liver Transplant Programme, SingHealth Duke-NUS Transplant Centre, Level 7, 5 Hospital Drive, Singapore, 169609, Singapore.
- Department of Dietetics & Nutrition, Ng Teng Fong General Hospital, Singapore, Singapore.
| | - Charles Chin Han Lew
- Department of Dietetics & Nutrition, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Peng Chin Kek
- Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
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Giannini S, Poci C, Fusaro M, Egan CG, Marcocci C, Vignali E, Cetani F, Nannipieri F, Loy M, Gambino A, Adami G, Braga V, Rossini M, Arcidiacono G, Baffa V, Sella S. Effect of neridronate in osteopenic patients after heart, liver or lung transplant: a multicenter, randomized, double-blind, placebo-controlled study. Panminerva Med 2021; 63:214-223. [PMID: 34154321 DOI: 10.23736/s0031-0808.21.04401-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Transplantation (Tx) is an effective therapeutic option in patients with end-stage organ failure and osteoporosis and related fractures are a recognized complication in these patients. Aim of this study was to evaluate the efficacy of neridronate in patients with reduced bone mass after Tx of the heart, liver or lung. METHODS In this multicenter randomized double-blind controlled trial (RCT), 22 patients were treated with neridronate (25 mg i.m./month) and 17 received placebo. All patients received daily oral calcium (500 mg) and vitamin D (400 IU). Dual-energy X-ray absorptiometry (DXA) was evaluated at 0, 6 and 12 months and markers of bone turnover at 0, 3, 6, 9 and 12 months. RESULTS Thirty-nine patients (11 heart Tx, 21 liver Tx, 7 lung Tx), aged 49.3±9.1 years, with a T-score <-2.0 SD at lumbar spine or femoral level were included. In neridronate-treated patients, a significant increase in lumbar bone mineral density (BMD) was observed after 12 months vs. placebo control (0.92±0.13 g/cm2 vs. 0.84±0.08 g/cm2; P=0.005). Femur and hip BMD remained unchanged between groups. Total alkaline phosphatase, bone alkaline phosphatase and beta-cross-laps significantly decreased over the 12 months in neridronate-treated patients vs. placebo, respectively (107.4±74 U/L vs. 157.6±107.1 U/L, P=0.002; 5.7±3.3 µg/L vs. 11.7±4.3 µg/L, P<0.001 and 0.25±0.13 ng/mL vs. 0.73±0.57 ng/mL, P<0.001). No difference was observed between neridronate and placebo groups regarding safety profile. CONCLUSIONS This is the first RCT that demonstrates the efficacy of neridronate in increasing bone density and reducing bone turnover in organ Tx recipients with significant skeletal morbidity.
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Affiliation(s)
- Sandro Giannini
- Department of Medicine (DIMED), Clinica Medica Uno, University of Padua, Padua, Italy -
| | - Carlo Poci
- Department of Medicine (DIMED), Clinica Medica Uno, University of Padua, Padua, Italy
| | - Maria Fusaro
- National Research Council (CNR), Institute of Clinical Physiology (IFC), Pisa, Italy.,Department of Medicine, University of Padua, Padua, Italy
| | | | - Claudio Marcocci
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Edda Vignali
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Filomena Cetani
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Monica Loy
- Unit of Thoracic Surgery, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Antonio Gambino
- Unit of Cardiac Surgery, Department of Cardio-Thoracic Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Giovanni Adami
- Unit of Rheumatology, Department of Medicine, University of Verona, Verona, Italy
| | - Vania Braga
- Unit of Rheumatology, Department of Medicine, University of Verona, Verona, Italy
| | - Maurizio Rossini
- Unit of Rheumatology, Department of Medicine, University of Verona, Verona, Italy
| | - Gaetano Arcidiacono
- Department of Medicine (DIMED), Clinica Medica Uno, University of Padua, Padua, Italy
| | - Valeria Baffa
- Department of Medicine (DIMED), Clinica Medica Uno, University of Padua, Padua, Italy
| | - Stefania Sella
- Department of Medicine (DIMED), Clinica Medica Uno, University of Padua, Padua, Italy
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Lim WH, Ng CH, Ow ZGW, Ho OTW, Tay PWL, Wong KL, Tan EXX, Tang SY, Teo CML, Muthiah MD. A systematic review and meta-analysis on the incidence of osteoporosis and fractures after liver transplant. Transpl Int 2021; 34:1032-1043. [PMID: 33835638 DOI: 10.1111/tri.13863] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 12/11/2022]
Abstract
Following liver transplant (LT), osteoporosis is a severe complication that causes morbidity. However, the incidence and risk factors of osteoporosis and fractures have not been well described. Single-arm meta-analysis of studies reporting osteopenia, osteoporosis, and fractures post-LT was performed with meta-regression for study period. Dichotomous variables, continuous variables and time-to-event variables were pooled in odds ratio, weighted mean difference and hazard ratio, respectively. For risk factors with limited data, a systematic review of literature was conducted. There was a significant increase in both osteoporosis and fractures compared to non-LT patients. Osteopenia, osteoporosis and incident fractures were newly diagnosed in 34.53% (CI: 0.17-0.56, n = 301), 11.68% (CI: 0.05-0.24, n = 1251) and 20.40% (CI: 0.13-0.30, n = 4322) of LT patients, respectively. Female gender (P = 0.017) increased risks of osteoporosis but not older age and BMI. Older age, lower pre-LT bone mineral density (BMD), presence of bone disease pre-LT were significant risk factors for fractures but not female gender, post-menopausal state, BMI, smoking and alcohol. There is a high incidence of skeletal complications post-LT. Older age, lower pre-LT BMD and presence of bone disease pre-LT are significant risk factors that are associated with incident fractures physicians should be cognisant of in liver transplant recipients.
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Affiliation(s)
- Wen Hui Lim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Cheng Han Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | - Owen Tsung Wen Ho
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Phoebe Wen Lin Tay
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Keng Lin Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Department of Orthopaedic Surgery, Sengkang General Hospital, Singapore, Singapore
| | - Eunice Xiang Xuan Tan
- National University Centre for Organ Transplantation, National University Health System, Singapore, Singapore.,Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Si Ying Tang
- National University Centre for Organ Transplantation, National University Health System, Singapore, Singapore.,Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Claire Min-Li Teo
- Department of Rheumatology, Allergy and Immunology, Tan Tock Seng Hospital, Singapore, Singapore
| | - Mark D Muthiah
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,National University Centre for Organ Transplantation, National University Health System, Singapore, Singapore.,Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
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Oya A, Umezu T, Ogawa R, Nishiwaki T, Niki Y, Nakamura M, Matsumoto M, Kanaji A. Short-Term Outcomes of Total Hip Arthroplasty after Liver Transplantation. Arthroplast Today 2021; 8:11-14. [PMID: 33665276 PMCID: PMC7906880 DOI: 10.1016/j.artd.2021.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 12/02/2020] [Accepted: 01/03/2021] [Indexed: 02/07/2023] Open
Abstract
Background Idiopathic osteonecrosis of the femoral head (ONFH) frequently occurs after liver transplantation (LT) because of lifelong administration of corticosteroids or immunosuppressants and often requires total hip arthroplasty (THA). This study examines patient characteristics and short-term outcomes of THA after LT. Methods We observed 9 hips in 7 patients who underwent THA from August 2015 to December 2017 for ONFH after LT (group L). Cementless implants were inserted in all hips. Medical records were retrospectively reviewed to reveal reasons for LT, type of donor, and period from LT to THA. Preoperative laboratory data, operative time, intraoperative blood loss, complication rates, and Harris Hip Score were compared with a control group of 27 cementless THAs in 27 patients with ONFH. Results Causative diseases were liver cirrhosis (n = 4), type B fulminant hepatitis (n = 1), congenital biliary atresia (n = 1), and iatrogenic biliary tract injury (n = 1). Four livers were from living donors and 3 from cadavers. Mean time from LT to THA was 10.4 (1-20) years. Preoperative blood test showed a significant decrease in platelet count (178 vs 268 [∗103/μl]) and rise in total bilirubin (1.1 vs 0.7 [mg/dL]) in group L. There was no significant difference in operative time (86 vs 100 [minutes]), but intraoperative blood loss (303 vs 163 [mL]) increased significantly in group L. There were no significant differences in complication incidence or Harris Hip Score between the 2 groups. Conclusion THA after LT requires caution because risks for bleeding increase. However, short-term outcomes appear to be equivalent to normal THA.
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Affiliation(s)
- Akihito Oya
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Taro Umezu
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Ryo Ogawa
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Toru Nishiwaki
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Yasuo Niki
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Arihiko Kanaji
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
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Rogers W, Robertson MP, Ballantyne A, Blakely B, Catsanos R, Clay-Williams R, Fiatarone Singh M. Compliance with ethical standards in the reporting of donor sources and ethics review in peer-reviewed publications involving organ transplantation in China: a scoping review. BMJ Open 2019; 9:e024473. [PMID: 30723071 PMCID: PMC6377532 DOI: 10.1136/bmjopen-2018-024473] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES The objective of this study is to investigate whether papers reporting research on Chinese transplant recipients comply with international professional standards aimed at excluding publication of research that: (1) involves any biological material from executed prisoners; (2) lacks Institutional Review Board (IRB) approval and (3) lacks consent of donors. DESIGN Scoping review based on Arksey and O'Mallee's methodological framework. DATA SOURCES Medline, Scopus and Embase were searched from January 2000 to April 2017. ELIGIBILITY CRITERIA We included research papers published in peer-reviewed English-language journals reporting on outcomes of research involving recipients of transplanted hearts, livers or lungs in mainland China. DATA EXTRACTION AND SYNTHESIS Data were extracted by individual authors working independently following training and benchmarking. Descriptive statistics were compiled using Excel. RESULTS 445 included studies reported on outcomes of 85 477 transplants. 412 (92.5%) failed to report whether or not organs were sourced from executed prisoners; and 439 (99%) failed to report that organ sources gave consent for transplantation. In contrast, 324 (73%) reported approval from an IRB. Of the papers claiming that no prisoners' organs were involved in the transplants, 19 of them involved 2688 transplants that took place prior to 2010, when there was no volunteer donor programme in China. DISCUSSION The transplant research community has failed to implement ethical standards banning publication of research using material from executed prisoners. As a result, a large body of unethical research now exists, raising issues of complicity and moral hazard to the extent that the transplant community uses and benefits from the results of this research. We call for retraction of this literature pending investigation of individual papers.
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Affiliation(s)
- Wendy Rogers
- Department of Clinical Medicine and Department of Philosophy, Macquarie University, Sydney, New South Wales, Australia
- Department of Philosophy, Macquarie University, Sydney, New South Wales, Australia
| | | | - Angela Ballantyne
- Department of Primary Health Care and General Practice, University of Otago, Wellington, New Zealand
| | - Brette Blakely
- Australian Institute of Health Innovation, Macquarie University, Sydney, New South Wales, Australia
| | | | - Robyn Clay-Williams
- Australian Institute of Health Innovation, Macquarie University, Sydney, New South Wales, Australia
| | - Maria Fiatarone Singh
- Faculty of Health Sciences, University of Sydney, Sydney, New South Wales, Australia
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Kuo YR, Chen CC, Wang JW, Chang JK, Huang YC, Pan CC, Lin YC, Wu RW, Lee CH. Bone infarction of the hip after hand allotransplantation: A case report. Microsurgery 2018; 39:349-353. [PMID: 30481394 DOI: 10.1002/micr.30375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/11/2018] [Accepted: 08/07/2018] [Indexed: 11/07/2022]
Abstract
Vascularized composite allotransplantation represents as an emerging field in reconstructive surgery. However, some complications can be associated with the procedure. The authors describe a case of bone infarctions of the bilateral hip joints following the first hand allotransplantation in Taiwan. A 45-year-old man who experienced a traumatic amputation of the distal third of his forearm received a hand transplantation from a brain-dead donor. Immunosuppression included antithymocyte globulins, and bolus methylprednisolone (Solu-Medrol) was used for the induction. The maintenance therapy protocol included systemic tacrolimus, mycophenolate mofetil, and prednisone. The patient discontinued the systemic steroid 15 months after surgery. Two episodes of acute rejections were observed at 105 and 810 days after surgery. These signs disappeared after pulse therapy with Solu-Medrol, titration with tacrolimus, and topical immunosuppressive creams (tacrolimus and clobetasol). However, the patient felt pain in both hips after long periods of standing 30 months after the transplantation. A pelvic radiograph and magnetic resonance imaging revealed avascular necrosis (AVN) in both hip joints. Because of the progressive worsening of the pain, the patient underwent a decompression surgery on the left hip involving a fibula bone graft. The patient underwent a right hip hemi-arthroplasty with a bipolar prosthesis 3 months later. The patient remained in good health without major complications. These findings indicate that systemic steroids and tacrolimus might be the major predisposing factors for the induction of AVN after hand allotransplantation.
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Affiliation(s)
- Yur-Ren Kuo
- Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chien-Chang Chen
- Department of Plastic & Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Jun-Wen Wang
- Orthopedics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Jui-Kun Chang
- Rehabilitation, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yu-Chi Huang
- Rehabilitation, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Cheng-Chung Pan
- Pharmacology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Chun Lin
- Department of Plastic & Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Re-Wen Wu
- Orthopedics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chen-Hsiang Lee
- Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
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Capone A, Bienati F, Torchia S, Podda D, Marongiu G. Short stem total hip arthroplasty for osteonecrosis of the femoral head in patients 60 years or younger: a 3- to 10-year follow-up study. BMC Musculoskelet Disord 2017; 18:301. [PMID: 28716026 PMCID: PMC5513025 DOI: 10.1186/s12891-017-1662-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 07/09/2017] [Indexed: 12/18/2022] Open
Abstract
Background In young patients with osteonecrosis of the femoral head (ONFH), short-stem total hip arthroplasty (THA) could allow a potential advantage in preserving metaphyseal bone-stock, when revision surgery might become necessary. However, only a few studies have evaluated the outcome of short-stem THAs in ONFH. We reviewed the prospectively collected data of a cementless partial neck-retaining short-stem with ceramic-on-ceramic bearings in ONFH patients. Methods Thirty patients (37 hips) younger than 60 years (mean age at surgery, 51.5 years) underwent THA with the NANOS® stem (Smith and Nephew, Marl, Germany) from January 2006 to December 2012. All patients received a 32-mm or 36 mm ceramic femoral head. Harris hip score, WOMAC and UCLA activity score were recorded. Postoperative radiographs were evaluated for bone-implant fixation and osteolysis. Further analysis correlated clinical findings with implants characteristics and patient demographics at mean 5.6 years’ follow-up (range, 3–10 years). Results The clinical and functional results improved significantly (p < 0.001). At latest follow-up, mean HHS, WOMAC, and UCLA activity scores were 90 (range, 71–100), 94 (range, 76–100), and 6.3 (range, 4–10) points, respectively. The diameter of the femoral head did not influence the clinical outcome (p = 0.661). All hips showed bone ingrowth fixation of the acetabular and femoral components. No patients showed osteolysis. No revision for any reason was performed during the study period. Conclusions The excellent clinical results and fixation pattern at mean 5.6 years’ follow-up reveal this implant as a reliable option in advanced stage of ONFH either. Further investigations are crucial to determine the long-term durability and to assess whether the association of ceramic-on-ceramic bearings, can be useful to achieve longer survivorship and lower complications rates. Trial registration Registry number: ISRCTN 91336248; date of registration: 04/07/2017.
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Affiliation(s)
- Antonio Capone
- Orthopaedic Clinic of the Department of Surgical Science, University of Cagliari, Ospedale Marino, Lungomare Poetto 12, 09126, Cagliari, Italy
| | - Fabrizio Bienati
- Orthopaedic Clinic of the Department of Surgical Science, University of Cagliari, Ospedale Marino, Lungomare Poetto 12, 09126, Cagliari, Italy
| | - Stefania Torchia
- Orthopaedic Clinic of the Department of Surgical Science, University of Cagliari, Ospedale Marino, Lungomare Poetto 12, 09126, Cagliari, Italy
| | - Daniele Podda
- Trauma and Orthopaedic Department, Ospedale Santissima Trinità, Via Is Mirrionis 92, 09121, Cagliari, Italy
| | - Giuseppe Marongiu
- Orthopaedic Clinic of the Department of Surgical Science, University of Cagliari, Ospedale Marino, Lungomare Poetto 12, 09126, Cagliari, Italy.
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Erkut A, Tumkaya L, Balik MS, Kalkan Y, Guvercin Y, Yilmaz A, Yuce S, Cure E, Sehitoglu I. The effect of prenatal exposure to 1800 MHz electromagnetic field on calcineurin and bone development in rats. Acta Cir Bras 2016; 31:74-83. [PMID: 26959616 DOI: 10.1590/s0102-865020160020000001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/19/2016] [Indexed: 02/07/2023] Open
Abstract
PURPOSE To investigated the effects of exposure to an 1800 MHz electromagnetic field (EMF) on bone development during the prenatal period in rats. METHODS Pregnant rats in the experimental group were exposed to radiation for six, 12, and 24 hours daily for 20 days. No radiation was given to the pregnant rats in the control group. We distributed the newborn rats into four groups according to prenatal EMF exposure as follows: Group 1 was not exposed to EMF; groups 2, 3, and 4 were exposed to EMF for six, 12, and 24 hours a day, respectively. The rats were evaluated at the end of the 60th day following birth. RESULTS Increasing the duration of EMF exposure during the prenatal period resulted in a significant reduction of resting cartilage levels and a significant increase in the number of apoptotic chondrocytes and myocytes. There was also a reduction in calcineurin activities in both bone and muscle tissues. We observed that the development of the femur, tibia, and ulna were negatively affected, especially with a daily EMF exposure of 24 hours. CONCLUSION Bone and muscle tissue development was negatively affected due to prenatal exposure to 1800 MHz radiofrequency electromagnetic field.
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Affiliation(s)
- Adem Erkut
- School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Levent Tumkaya
- School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | | | - Yildiray Kalkan
- School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Yilmaz Guvercin
- School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adnan Yilmaz
- School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Suleyman Yuce
- Department of Internal Medicine, Kumru State Hospital, Ordu, Turkey
| | - Erkan Cure
- School of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
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Song L, Xie XB, Peng LK, Yu SJ, Peng YT. Mechanism and Treatment Strategy of Osteoporosis after Transplantation. Int J Endocrinol 2015; 2015:280164. [PMID: 26273295 PMCID: PMC4530234 DOI: 10.1155/2015/280164] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 12/27/2014] [Indexed: 12/22/2022] Open
Abstract
Osteoporosis (OP) has emerged as a frequent and devastating complication of organ solid transplantation process. Bone loss after organ transplant is related to adverse effects of immunosuppressants on bone remodeling and bone quality. Many factors contribute to the pathogenesis of OP in transplanted patients. Many mechanisms of OP have been deeply approached. Drugs for OP can be generally divided into "bone resorption inhibitors" and "bone formation accelerators," the former hindering bone resorption by osteoclasts and the latter increasing bone formation by osteoblasts. Currently, bisphosphonates, which are bone resorption inhibitors drugs, are more commonly used clinically than others. Using the signaling pathway or implantation bone marrow stem cell provides a novel direction for the treatment of OP, especially OP after transplantation. This review addresses the mechanism of OP and its correlation with organ transplantation, lists prevention and management of bone loss in the transplant recipient, and discusses the recipients of different age and gender.
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Affiliation(s)
- Lei Song
- Center of Organ Transplantation, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Xu-Biao Xie
- Center of Organ Transplantation, Second Xiangya Hospital of Central South University, Changsha 410011, China
- *Xu-Biao Xie:
| | - Long-Kai Peng
- Center of Organ Transplantation, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Shao-Jie Yu
- Center of Organ Transplantation, Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Ya-Ting Peng
- Department of Respiratory Medicine, Second Xiangya Hospital of Central South University, Changsha 410011, China
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