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Hosseinzadeh S, Egan J, Shariat M, Williamson PM, Momenzadeh K, Van Dam M, Rodriguez EK, Nazarian A, Luo X. Plaster of Paris: Squeeze, But Not Too Hard! Orthopedics 2022; 45:e57-e61. [PMID: 34734776 DOI: 10.3928/01477447-20211101-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Plaster of Paris (PoP) has been the predominant treatment option for most acute and chronic orthopedic conditions. Water immersion significantly decreases the PoP bandage strength. Moreover, concerns have been raised about the possibility of breaks in PoP splints and cast failures once solid. The current study was designed to account for the increase in weight associated with increased PoP layers. The authors hypothesized that by controlling for weight variation as layers increased, they could determine the number of layers of PoP bandage that truly results in optimal mechanical properties. They assessed whether adequate plaster weight control while increasing layers could improve the mechanical properties of the splint. [Orthopedics. 2022;45(1):e57-e61.].
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Atlas G, Yap M, Lim A, Vidmar S, Smith N, King L, Jones A, Hong J, Ranganathan S, Simm PJ. The clinical features that contribute to poor bone health in young Australians living with cystic fibrosis: A recommendation for BMD screening. Pediatr Pulmonol 2021; 56:2014-2022. [PMID: 33724711 DOI: 10.1002/ppul.25375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/27/2021] [Accepted: 02/27/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND For Australians living with cystic fibrosis (CF), increased longevity means greater consideration needs to be given to long-term endocrine sequelae such as CF-related bone disease. Deficits in bone mass accrual are most likely to occur during childhood and adolescence. Current guidelines in Australia suggest repeat dual-energy X-ray absorptiometry (DXA) scans every 2 years. This study aims to stratify clinical factors that determine future bone health in the Australian CF population and use this to guide a more streamlined approach to bone health screening. METHODS This study was a retrospective audit of all patients diagnosed with CF who were treated at the Royal Children's Hospital Melbourne, Australia from 2000 to 2016 (n = 453). Two hundred and two patients had a DXA scan in the study period (191 with height-adjusted data) and 111 patients had more than one scan (108 with height-adjusted data). An investigation into the associations between bone mineral density (BMD) Z score and potential risk factors was conducted using DXA and historical data. RESULTS The main predictor of future BMD was the previous BMD Z score (p < .001). Other factors found to be determinants of BMD included nutritional status, lung function (FEV1 ), age, history of previous fracture, oral corticosteroid use, and the number of hospital admissions. However, after adjusting for previous BMD, evidence of an association remained only with nutritional status, FEV1 , and number of hospital admissions. CONCLUSION Second yearly scans may be unnecessary in children with an adequate DXA score on the initial scan who remain clinically stable. However, clinical deterioration in those whose BMD was previously normal, may require closer monitoring of bone health. We propose a guideline for the frequency of DXA monitoring in relation to clinical risk factors.
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Affiliation(s)
- Gabby Atlas
- Royal Children's Hospital Melbourne, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Matthew Yap
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Angelina Lim
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.,Centre for Medicine Use and Safety, Monash University Parkville, Parkville, Victoria, Australia
| | - Suzanna Vidmar
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Nathan Smith
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Louise King
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Alicia Jones
- Monash Medical Centre, Clayton, Victoria, Australia.,Monash Centre for Health Research and Implementation, Monash University, Melbourne, Victoria, Australia
| | - Jason Hong
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Sarath Ranganathan
- Royal Children's Hospital Melbourne, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Peter J Simm
- Royal Children's Hospital Melbourne, Parkville, Victoria, Australia.,Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
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Braux J, Jourdain ML, Guillaume C, Untereiner V, Piot O, Baehr A, Klymiuk N, Winter N, Berri M, Buzoni-Gatel D, Caballero I, Guillon A, Si-Tahar M, Jacquot J, Velard F. CFTR-deficient pigs display alterations of bone microarchitecture and composition at birth. J Cyst Fibros 2019; 19:466-475. [PMID: 31787573 DOI: 10.1016/j.jcf.2019.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 10/07/2019] [Accepted: 10/22/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The lack of cystic fibrosis transmembrane conductance regulator (CFTR) function causes cystic fibrosis (CF), predisposing to severe lung disease, reduced growth and osteopenia. Both reduced bone content and strength are increasingly recognized in infants with CF before the onset of significant lung disease, suggesting a developmental origin and a possible role in bone disease pathogenesis. The role of CFTR in bone metabolism is unclear and studies on humans are not feasible. Deletion of CFTR in pigs (CFTR -/- pigs) displays at birth severe malformations similar to humans in the intestine, respiratory tract, pancreas, liver, and male reproductive tract. METHODS We compared bone parameters of CFTR -/- male and female pigs with those of their wild-type (WT) littermates at birth. Morphological and microstructural properties of femoral cortical and trabecular bone were evaluated using micro-computed tomography (μCT), and their chemical compositions were examined using Raman microspectroscopy. RESULTS The integrity of the CFTR -/- bone was altered due to changes in its microstructure and chemical composition in both sexes. Low cortical thickness and high cortical porosity were found in CFTR -/- pigs compared to sex-matched WT littermates. Moreover, an increased chemical composition heterogeneity associated with higher carbonate/phosphate ratio and higher mineral crystallinity was found in CFTR -/- trabecular bone, but not in CFTR -/- cortical bone. CONCLUSIONS The loss of CFTR directly alters the bone composition and metabolism of newborn pigs. Based on these findings, we speculate that bone defects in patients with CF could be a primary, rather than a secondary consequence of inflammation and infection.
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Affiliation(s)
- Julien Braux
- Université de Reims Champagne Ardenne, BIOS EA 4691, Biomatériaux et Inflammation en site osseux, SFR CAP-Santé (FED 4231), 1, Avenue du Maréchal Juin, 51097 Reims, France
| | - Marie-Laure Jourdain
- Université de Reims Champagne Ardenne, BIOS EA 4691, Biomatériaux et Inflammation en site osseux, SFR CAP-Santé (FED 4231), 1, Avenue du Maréchal Juin, 51097 Reims, France
| | - Christine Guillaume
- Université de Reims Champagne Ardenne, BIOS EA 4691, Biomatériaux et Inflammation en site osseux, SFR CAP-Santé (FED 4231), 1, Avenue du Maréchal Juin, 51097 Reims, France
| | - Valérie Untereiner
- Université de Reims Champagne Ardenne (URCA), PICT Platform, Reims, 1, Avenue du Maréchal Juin, 51097 Reims, France
| | - Olivier Piot
- Université de Reims Champagne-Ardenne, BioSpecT (Translational BioSpectroscopy) EA 7506, 1, Avenue du Maréchal Juin, 51097 Reims, France
| | - Andrea Baehr
- Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universitat Munchen, Hackerstrasse 27, 85764, Oberschleissheim, Germany
| | - Nikolai Klymiuk
- Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universitat Munchen, Hackerstrasse 27, 85764, Oberschleissheim, Germany
| | - Nathalie Winter
- INRA, UMR1282 ISP, Centre de recherches INRA Val de Loire, 37380, Nouzilly, France
| | - Mustapha Berri
- INRA, UMR1282 ISP, Centre de recherches INRA Val de Loire, 37380, Nouzilly, France
| | | | - Ignaccio Caballero
- INRA, UMR1282 ISP, Centre de recherches INRA Val de Loire, 37380, Nouzilly, France
| | - Antoine Guillon
- Inserm, Centre d'Etude des Pathologies Respiratoires, UMR1100/EA6305, 10 Boulevard Tonnellé, 37032, Tours, France
| | - Mustapha Si-Tahar
- Inserm, Centre d'Etude des Pathologies Respiratoires, UMR1100/EA6305, 10 Boulevard Tonnellé, 37032, Tours, France
| | - Jacky Jacquot
- Université de Reims Champagne Ardenne, BIOS EA 4691, Biomatériaux et Inflammation en site osseux, SFR CAP-Santé (FED 4231), 1, Avenue du Maréchal Juin, 51097 Reims, France.
| | - Frédéric Velard
- Université de Reims Champagne Ardenne, BIOS EA 4691, Biomatériaux et Inflammation en site osseux, SFR CAP-Santé (FED 4231), 1, Avenue du Maréchal Juin, 51097 Reims, France.
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Jia HL, Zhou DS. Retracted: Downregulation of microRNA-367 promotes osteoblasts growth and proliferation of mice during fracture by activating the PANX3-mediated Wnt/β-catenin pathway. J Cell Biochem 2019; 120:8247-8258. [PMID: 30556206 DOI: 10.1002/jcb.28108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/29/2018] [Indexed: 02/02/2023]
Abstract
A majority of people suffering from bone fractures fail to heal and develop a nonunion, which is a challenging orthopedic complication requiring complex and expensive treatment. Previous data showed the inhibition of some microRNAs (miRNAs or miRs) can enhance fracture healing. The objective of the present study is to explore effects of miR-367 on the osteoblasts growth and proliferation of mouse during fracture via the Wnt/β-catenin pathway by targeting PANX3. Primarily, the femur fracture model was successfully established in 66 (C57BL/6) 6-week-old male mice. To verify whether miR-367 target PANX3, we used the target prediction program and performed luciferase activity determination. Subsequently, to figure out the underlying regulatory roles of miR-367 in fracture, osteoblasts were elucidated by treatment with miR-367 mimic, miR-367 inhibitor, or siRNA against PANX3 to determine the expression of miR-367, siPANX3, β-catenin, and Wnt5b as well as cell proliferation and apoptosis. The results demonstrated that PANX3 was verified as a target gene of miR-367. MiR-367 was found to highly expressed but PANX3, β-catenin, and Wnt5b were observed poorly expressed in fracture mice. downregulated miR-367 increased the mRNA and protein expression of PANX3, β-catenin, and Wnt5b, increased cell growth, proliferation, and migration, while decreased cell apoptosis in osteoblasts. Altogether, our study demonstrates that the downregulation of miR-367 may promote osteoblasts growth and proliferation in fracture through the activation of the PANX3-dependent Wnt/β-catenin pathway.
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Affiliation(s)
- Hong-Lei Jia
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Dong-Sheng Zhou
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
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Button BM, Wilson C, Dentice R, Cox NS, Middleton A, Tannenbaum E, Bishop J, Cobb R, Burton K, Wood M, Moran F, Black R, Bowen S, Day R, Depiazzi J, Doiron K, Doumit M, Dwyer T, Elliot A, Fuller L, Hall K, Hutchins M, Kerr M, Lee AL, Mans C, O'Connor L, Steward R, Potter A, Rasekaba T, Scoones R, Tarrant B, Ward N, West S, White D, Wilson L, Wood J, Holland AE. Physiotherapy for cystic fibrosis in Australia and New Zealand: A clinical practice guideline. Respirology 2016; 21:656-67. [PMID: 27086904 PMCID: PMC4840479 DOI: 10.1111/resp.12764] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/13/2016] [Accepted: 02/08/2016] [Indexed: 12/21/2022]
Abstract
Physiotherapy management is a key element of care for people with cystic fibrosis (CF) throughout the lifespan. Although considerable evidence exists to support physiotherapy management of CF, there is documented variation in practice. The aim of this guideline is to optimize the physiotherapy management of people with CF in Australia and New Zealand. A systematic review of the literature in key areas of physiotherapy practice for CF was undertaken. Recommendations were formulated based on National Health and Medical Research Council (Australia) guidelines and considered the quality, quantity and level of the evidence; the consistency of the body of evidence; the likely clinical impact; and applicability to physiotherapy practice in Australia and New Zealand. A total of 30 recommendations were made for airway clearance therapy, inhalation therapy, exercise assessment and training, musculoskeletal management, management of urinary incontinence, managing the newly diagnosed patient with CF, delivery of non-invasive ventilation, and physiotherapy management before and after lung transplantation. These recommendations can be used to underpin the provision of evidence-based physiotherapy care to people with CF in Australia and New Zealand.
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Affiliation(s)
| | | | | | | | | | | | | | - Robyn Cobb
- Lady Cilento Children's HospitalBrisbane
| | | | | | | | | | | | | | | | | | | | - Tiffany Dwyer
- Royal Prince Alfred HospitalNSW
- University of SydneySydneyNSW
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jamie Wood
- Sir Charles Gairdner Hospital and Institute for Respiratory HealthWestern Australia
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Enhanced F508del-CFTR Channel Activity Ameliorates Bone Pathology in Murine Cystic Fibrosis. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:1132-1141. [DOI: 10.1016/j.ajpath.2013.12.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 11/25/2013] [Accepted: 12/02/2013] [Indexed: 11/23/2022]
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Le Henaff C, Gimenez A, Haÿ E, Marty C, Marie P, Jacquot J. The F508del Mutation in Cystic Fibrosis Transmembrane Conductance Regulator Gene Impacts Bone Formation. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 180:2068-75. [DOI: 10.1016/j.ajpath.2012.01.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 01/12/2012] [Accepted: 01/19/2012] [Indexed: 11/25/2022]
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Pressley JC, Kendig TD, Frencher SK, Barlow B, Quitel L, Waqar F. Epidemiology of bone fracture across the age span in blacks and whites. THE JOURNAL OF TRAUMA 2011; 71:S541-8. [PMID: 22072044 PMCID: PMC3274822 DOI: 10.1097/ta.0b013e31823a4d58] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Gender and racial disparities in injury mortality have been well established, but less is known regarding differences in fracture-related hospitalizations across the age span. METHODS Cross-sectional analysis of annual incident fracture hospital admissions used statewide acute care hospital discharge data (Statewide Program and Research Cooperative System) for non-Hispanic White (n = 138,763) and non-Hispanic Black (n = 19,588) residents of New York State between 2000 and 2002. US census data with intercensal estimates were used to ascertain the population at risk. Gender- and race-specific incident fracture was calculated in 5-year age intervals. The χ test was used to analyze categorical variables. RESULTS Mechanisms of injury vary by race and gender in their relative contribution to injury-related fractures across the age span. Black males exhibited higher fracture incidence until approximately age 62, while incidence in women diverged around age 45. Total motor vehicle traffic-related fracture hospitalization is bimodal in Whites but not in Blacks. Over the life span, all groups exhibited bimodal pedestrian fractures with pedestrian fractures accounting for 8.8% and 2.5% of all fractures in Blacks and Whites, respectively. Racial disparities were present from preschool through age 70. Violence-related fractures were 10 times higher in Blacks, accounting for 18.2% of hospitalizations. Black males exhibit higher fracture incidence due to violence by age 5 and higher gun violence by age 10; both remain elevated through age 75. CONCLUSIONS Despite historical studies demonstrating higher bone density in Blacks, this study found racial disparities with increased fracture risk in both Black children and adults across most nonfall-related injury mechanisms examined.
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Affiliation(s)
- Joyce C Pressley
- Columbia University Department of Epidemiology, Columbia University, New York, New York 10032, USA.
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Paradis J, Wilke M, Haston CK. Osteopenia in Cftr-deltaF508 mice. J Cyst Fibros 2010; 9:239-45. [DOI: 10.1016/j.jcf.2010.05.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Revised: 04/23/2010] [Accepted: 05/05/2010] [Indexed: 11/28/2022]
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