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Turlington A, Young J, Shek D. Quantifying "Community Power" and "Racial Justice" in the Medical-Legal Partnership Literature. J Law Med Ethics 2024; 51:748-756. [PMID: 38477289 DOI: 10.1017/jme.2024.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Medical-Legal Partnerships (MLPs) have been widely acclaimed for promoting health equity and achieving meaningful outcomes. Yet, little to no research has analyzed if this critical work has been done with communities - through meaningful engagement and building power - or if it has been done for communities without their involvement.
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Affiliation(s)
- Alicia Turlington
- JOHN A. BURNS SCHOOL OF MEDICINE, UNIVERSITY OF HAWAI'I AT MĀNOA, HONOLULU, HAWAI'I, USA
| | - Jonathan Young
- UNIVERSITY OF HAWAI'I AT MĀNOA, HAMILTON LIBRARY, HONOLULU, HAWAI'I, USA
| | - Dina Shek
- WILLIAM S. RICHARDSON SCHOOL OF LAW, UNIVERSITY OF HAWAI'I AT MĀNOA, HONOLULU, HAWAI'I, USA
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2
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Daniel E, Deng F, Patel SK, Sedrak MS, Young J, Kim H, Razavi M, Sun CL, Root JC, Ahles TA, Dale W, Chen BT. Effect of chemotherapy on hippocampal volume and shape in older long-term breast cancer survivors. Front Aging Neurosci 2024; 16:1347721. [PMID: 38524113 PMCID: PMC10957749 DOI: 10.3389/fnagi.2024.1347721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/20/2024] [Indexed: 03/26/2024] Open
Abstract
Purpose The objective of this study was to assess changes in hippocampal volume and shape in older long-term breast cancer survivors who were exposed to chemotherapy 5-15 years prior. Methods This study recruited female long-term breast cancer survivors aged 65 years or older with a history of chemotherapy (C+), age-matched breast cancer survivors who did not receive chemotherapy (C-), and healthy controls (HC). The participants were recruited 5-15 years after chemotherapy at time point 1 (TP1) and were followed up for 2 years at time point 2 (TP2). Assessments included hippocampal volume and shape from brain MRI scans and neuropsychological (NP) tests. Results At TP1, each of the three groups was comprised of 20 participants. The C+ group exhibited a hippocampal volume loss estimated in proportion with total intracranial volume (ICV) in both the left and right hemispheres from TP1 to TP2. Regarding the hippocampal shape at TP1, the C+ group displayed inward changes compared to the control groups. Within the C+ group, changes in right hippocampal volume adjusted with ICV were positively correlated with crystalized composite scores (R = 0.450, p = 0.044). Additionally, in C+ groups, chronological age was negatively correlated with right hippocampal volume adjusted with ICV (R = -0.585, p = 0.007). Conclusion The observed hippocampal volume reduction and inward shape deformation within the C+ group may serve as neural basis for cognitive changes in older long-term breast cancer survivors with history of chemotherapy treatment.
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Affiliation(s)
- Ebenezer Daniel
- Department of Diagnostic Radiology, City of Hope National Medical Center, Duarte, CA, United States
| | - Frank Deng
- Department of Diagnostic Radiology, City of Hope National Medical Center, Duarte, CA, United States
| | - Sunita K. Patel
- Department of Population Science, City of Hope National Medical Center, Duarte, CA, United States
| | - Mina S. Sedrak
- Department of Medicine, Division of Hematology-Oncology, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA, United States
| | - Jonathan Young
- Department of Diagnostic Radiology, City of Hope National Medical Center, Duarte, CA, United States
| | - Heeyoung Kim
- Center for Cancer and Aging, City of Hope National Medical Center, Duarte, CA, United States
| | - Marianne Razavi
- Department of Supportive Care Medicine, City of Hope National Medical Center, Duarte, CA, United States
| | - Can-Lan Sun
- Center for Cancer and Aging, City of Hope National Medical Center, Duarte, CA, United States
| | - James C. Root
- Neurocognitive Research Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Tim A. Ahles
- Neurocognitive Research Laboratory, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - William Dale
- Center for Cancer and Aging, City of Hope National Medical Center, Duarte, CA, United States
- Department of Supportive Care Medicine, City of Hope National Medical Center, Duarte, CA, United States
| | - Bihong T. Chen
- Department of Diagnostic Radiology, City of Hope National Medical Center, Duarte, CA, United States
- Center for Cancer and Aging, City of Hope National Medical Center, Duarte, CA, United States
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Zemanick ET, Emerman I, McCreary M, Mayer-Hamblett N, Warden MN, Odem-Davis K, VanDevanter DR, Ren CL, Young J, Konstan MW. Heterogeneity of CFTR modulator-induced sweat chloride concentrations in people with cystic fibrosis. J Cyst Fibros 2024:S1569-1993(24)00015-8. [PMID: 38360461 DOI: 10.1016/j.jcf.2024.02.001] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/03/2024] [Accepted: 02/04/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Sweat chloride (SC) concentrations in people with cystic fibrosis (PwCF) reflect relative CF transmembrane conductance regulator (CFTR) protein function, the primary CF defect. Populations with greater SC concentrations tend to have lesser CFTR function and more severe disease courses. CFTR modulator treatment can improve CFTR function within specific CF genotypes and is commonly associated with reduced SC concentration. However, SC concentrations do not necessarily fall to concentrations seen in the unaffected population, suggesting potential for better CFTR treatment outcomes. We characterized post-modulator SC concentration variability among CHEC-SC study participants by genotype and modulator. METHODS PwCF receiving commercially approved modulators for ≥90 days were enrolled for a single SC measurement. Clinical data were obtained from chart review and the CF Foundation Patient Registry (CFFPR). Variability of post-modulator SC concentrations was assessed by cumulative SC concentration frequencies. RESULTS Post-modulator SC concentrations (n = 3787) were collected from 3131 PwCF; most (n = 1769, 47 %) were collected after elexacaftor/tezacaftor/ivacaftor (ETI) treatment. Modulator use was associated with lower SC distributions, with post-ETI concentrations the lowest on average. Most post-ETI SC concentrations were <60 mmol/L (79 %); 26 % were <30 mmol/L. Post-ETI distributions varied by genotype. All genotypes containing at least one F508del allele had individuals with post-ETI SC ≥60 mmol/L, with the largest proportion being F508del/minimal function (31 %). CONCLUSIONS Post-modulator SC concentration heterogeneity was observed among all genotypes and modulators, including ETI. The presence of PwCF with post-modulator SC concentrations within the CF diagnostic range suggests room for additional treatment-associated CFTR restoration in this population.
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Affiliation(s)
- E T Zemanick
- University of Colorado Anschutz Medical Campus, Aurora, CO, United States.
| | - I Emerman
- Seattle Children's Hospital, Seattle, WA, United States
| | - M McCreary
- Seattle Children's Hospital, Seattle, WA, United States
| | - N Mayer-Hamblett
- Seattle Children's Hospital, Seattle, WA, United States; University of Washington, Seattle, WA, United States
| | - M N Warden
- Seattle Children's Hospital, Seattle, WA, United States
| | - K Odem-Davis
- Seattle Children's Hospital, Seattle, WA, United States
| | - D R VanDevanter
- Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - C L Ren
- Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - J Young
- Seattle Children's Hospital, Seattle, WA, United States
| | - M W Konstan
- Case Western Reserve University School of Medicine, Cleveland, OH, United States; Rainbow Babies and Children's Hospital, Cleveland, OH, United States
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Young J, Seeberg KA, Aakre KM, Borgeraas H, Nordstrand N, Wisløff T, Hjelmesæth J, Omland T, Hertel JK. The liver-heart axis in patients with severe obesity: The association between liver fibrosis and chronic myocardial injury may be explained by shared risk factors of cardiovascular disease. Clin Biochem 2024; 123:110688. [PMID: 37995847 DOI: 10.1016/j.clinbiochem.2023.110688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/13/2023] [Accepted: 11/20/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Severe obesity is associated with increased risk of non-alcoholic fatty liver disease and cardiovascular disease. We hypothesized that liver fibrosis as quantified by the Enhanced Liver Fibrosis (ELF) test would be predictive of myocardial injury and fibrosis, expressed by higher concentrations of cardiac troponin T and I measured by high-sensitivity assays (hs-cTnT and hs-cTnI, respectively). MATERIAL AND METHODS We performed cross-sectional analyses of baseline data from 136 patients (mean age 45 years, 38 % male) with severe obesity participating in the non-randomized clinical trial Prevention of Coronary Heart Disease in Morbidly Obese Patients (ClinicalTrials.gov NCT00626964). Associations between ELF scores, hs-cTnT, and hs-cTnI concentrations were assessed using linear regression analysis. RESULTS ELF scores were associated with hs-cTnT in the unadjusted model (B 0.381, 95 % Confidence Interval [CI] 0.247, 0.514), but the association was attenuated upon adjustment for potential confounders (B -0.031, 95 % CI -0.155, 0.093). Similarly, for hs-cTnI, an observed association with ELF scores in the unadjusted model was attenuated upon adjustment for potential confounders ((B 0.432, 95 % CI 0.179, 0.685) and (B 0.069, 95 % CI -0.230, 0.367), respectively). Age, sex, hypertension, and estimated glomerular filtration rate were amongst the shared predictors of ELF score, hs-cTnT, and hs-cTnI that provided the univariable models with the highest R-squared and lowest Akaike Information Criterion values. CONCLUSIONS Contrary to our hypothesis, ELF score did not predict myocardial injury and fibrosis, but we rather demonstrated an association between liver fibrosis and myocardial injury and fibrosis may be explained by shared risk factors of cardiovascular disease.
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Affiliation(s)
- J Young
- K.G. Jebsen Center for Cardiac Biomarkers, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - K A Seeberg
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Endocrinology, Obesity and Nutrition, Vestfold Hospital Trust, Tønsberg, Norway
| | - K M Aakre
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway; Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Department of Clinical Science, University of Bergen, Bergen, Norway
| | - H Borgeraas
- Department of Endocrinology, Obesity and Nutrition, Vestfold Hospital Trust, Tønsberg, Norway
| | - N Nordstrand
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
| | - T Wisløff
- K.G. Jebsen Center for Cardiac Biomarkers, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Health Services Research Unit, Akershus University Hospital, Lørenskog, Norway
| | - J Hjelmesæth
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Endocrinology, Obesity and Nutrition, Vestfold Hospital Trust, Tønsberg, Norway
| | - T Omland
- K.G. Jebsen Center for Cardiac Biomarkers, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Department of Cardiology, Oslo University Hospital, Oslo, Norway
| | - J K Hertel
- Department of Endocrinology, Obesity and Nutrition, Vestfold Hospital Trust, Tønsberg, Norway
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Talbot M, Gear M, Young J, Milner D, Bunting A, Bozzo A. Risk assessment of aviators with a total hip arthroplasty. BMJ Mil Health 2023:e002557. [PMID: 37844962 DOI: 10.1136/military-2023-002557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 09/11/2023] [Indexed: 10/18/2023]
Affiliation(s)
- Max Talbot
- Department of National Defence and the Canadian Armed Forces, Montréal, Québec, Canada
- Department of Surgery, McGill University Health Centre, Montréal, Québec, Canada
| | - M Gear
- Department of National Defence and the Canadian Armed Forces, Ottawa, Ontario, Canada
| | - J Young
- Department of National Defence and the Canadian Armed Forces, Ottawa, Ontario, Canada
| | - D Milner
- Department of National Defence and the Canadian Armed Forces, Ottawa, Ontario, Canada
| | - A Bunting
- Department of Surgery, McGill University Health Centre, Montréal, Québec, Canada
| | - A Bozzo
- Department of Surgery, McGill University Health Centre, Montréal, Québec, Canada
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Silver JA, Lahijanian Z, Kay-Rivest E, Marquez JC, Young J, Chagnon F, Torres C, Kost KM. Laryngeal Amyloidosis: What is the Role of Imaging? J Voice 2023:S0892-1997(23)00202-3. [PMID: 37596098 DOI: 10.1016/j.jvoice.2023.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 08/20/2023]
Abstract
OBJECTIVE/HYPOTHESIS To review the imaging findings of laryngeal amyloidosis and to identify radiological findings suggestive of this disease. STUDY DESIGN Retrospective case series. METHODS A retrospective chart review of patients with pathologically confirmed laryngeal amyloidosis was performed from 2009 to 2022. Clinical and demographic factors were collected. A fellowship-trained head and neck radiologist reviewed all computed tomography (CT) scans and magnetic resonance imaging (MRI) findings within this cohort. RESULTS 12 patients were identified and a total of 36 imaging studies analyzed. Localized amyloidosis was found in the supraglottic region (n = 6), glottic region (n = 7), and subglottic region (n = 5); six patients had disease spanning two subsites. The most common finding on the CT scan was a homogeneous and well-defined submucosal soft tissue mass. Punctate calcifications were present in three cases. The presence of contrast enhancement was identified in the majority of patients who underwent MRI (4/5). MRI showed consistent signal intensity, hypointense, or isointense on both T1-weighted and T2-weighted images. Diffusion-weighted sequences were obtained in every patient and did not demonstrate diffusion restriction. CONCLUSION This is the largest series searching for unifying imaging characteristics of laryngeal amyloidosis. This research suggests that characteristics from CT and MR provide both similar and unique features of laryngeal amyloidosis on imaging. Both modalities identify a submucosal mass. CT is the preferred modality to demonstrate punctate calcifications, while MRI identifies enhancement and altered signal characteristics. The main benefit of serial imaging is the correlation with patient symptoms, identification of the extent of disease, and assisting in delineating appropriate timing for surgery.
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Affiliation(s)
- Jennifer A Silver
- Department of Otolaryngology-Head and Neck surgery, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Zubin Lahijanian
- Department of Radiology, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Emily Kay-Rivest
- Department of Otolaryngology-Head and Neck surgery, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Juan C Marquez
- Department of Radiology, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Jonathan Young
- Department of Otolaryngology-Head and Neck surgery, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Francoise Chagnon
- Department of Otolaryngology-Head and Neck surgery, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Carlos Torres
- Department of Radiology, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Karen M Kost
- Department of Otolaryngology-Head and Neck surgery, Royal Victoria Hospital, Montreal, Quebec, Canada.
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Thanos A, Young J, Fortune B, Tang SJ. The retinal deep capillary plexus as a venous outflow system; insights from Sturge Weber Syndrome. Retin Cases Brief Rep 2023:01271216-990000000-00196. [PMID: 37490777 DOI: 10.1097/icb.0000000000001460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
PURPOSE To report on the venous abnormalities of a patient with Sturge-Weber syndrome (SWS). METHOD Case report. PATIENT A 29-year-old woman with a history of SWS since infancy was referred for evaluation of possible diffuse choroidal hemangioma. Multimodal imaging, including ultra-widefield fluorescein, indocyanine green, and optical coherence tomography-angiography (OCTA) were performed. RESULTS Dilated fundus examination was remarkable for increased cupping of the optic disc in the right eye, venous tortuosity, and marked dilation of the choroidal vessels. Ultra-widefield fluorescein angiography confirmed marked venous tortuosity and dilation, as well as anastomoses of the retinal veins ipsilateral to the port wine stain. Indocyanine green angiography revealed marked engorgement of the vortex veins and choroidal vasculature. OCTA revealed dilated vascular channels in the deep capillary plexus (DCP) that were directly anastomosing to the superficial capillary plexus, but not the intermediate capillary plexus. Engorgement of the ampullae of the DCP vortex system was also observed. The normal contralateral eye was used as comparison for all imaging studies. CONCLUSION These findings support the notion of generalized venous hypertension state in adult eyes with SWS and corroborate prior evidence that the deep capillary plexus acts as a venous outflow system.
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Affiliation(s)
- Aristomenis Thanos
- Department of Vitreo-Retina and Ocular Oncology, Legacy Devers Eye Institute, Portland, OR
- Discoveries in Sight Research Laboratories, Legacy Research Institute, Portland, OR
| | - Jonathan Young
- Glaucoma Associates, Legacy Devers Eye Institute, Portland, OR
| | - Brad Fortune
- Discoveries in Sight Research Laboratories, Legacy Research Institute, Portland, OR
| | - Stephen J Tang
- Diagnostic Imaging Northwest, Legacy Good Samaritan Hospital Department of Radiology, Portland OR
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VanDevanter DR, Zemanick ET, Konstan MW, Ren CL, Odem-Davis K, Emerman I, Young J, Mayer-Hamblett N. Willingness of people with cystic fibrosis receiving elexacaftor/tezacaftor/ivacaftor (ETI) to participate in randomized modulator and inhaled antimicrobial clinical trials. J Cyst Fibros 2023; 22:652-655. [PMID: 37100705 PMCID: PMC10523954 DOI: 10.1016/j.jcf.2023.04.007] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/31/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023]
Abstract
OBJECTIVE To assess the feasibility of enrolling people with CF (pwCF) taking the CFTR modulator elexacaftor/tezacaftor/ivacaftor (ETI) in clinical trials of a new modulator. METHODS PwCF receiving ETI at CHEC-SC study (NCT03350828) enrollment were surveyed for interest in 2-week to 6-month placebo- (PC) and active-comparator (AC) modulator studies. Those taking inhaled antimicrobials (inhABX) were surveyed for interest in PC inhABX studies. RESULTS Of 1791 respondents, 75% [95% CI 73, 77] would enroll in a 2-week PC modulator study versus 51% [49, 54] for a 6-month study; 82% [81, 84] and 63% [61, 65] would enroll in 2-week and 6 month AC studies; 77% [74, 80] of 551 taking inhABX would enroll in a 2-week PC inhABX study versus 59% [55, 63] for a 6-month study. Previous clinical trial experience increased willingness. CONCLUSIONS Study designs will affect feasibility of future clinical trials of new modulators and inhABX in people receiving ETI.
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Affiliation(s)
- D R VanDevanter
- Case Western Reserve University School of Medicine, Cleveland, OH United States.
| | - E T Zemanick
- University of Colorado, Anschutz Medical Campus, Aurora CO United States
| | - M W Konstan
- Case Western Reserve University School of Medicine, Cleveland, OH United States; Rainbow Babies and Children's Hospital, Cleveland, OH United States
| | - C L Ren
- Children's Hospital of Philadelphia, Philadelphia, PA United States
| | - K Odem-Davis
- Seattle Children's Hospital, Seattle, WA United States
| | - I Emerman
- Seattle Children's Hospital, Seattle, WA United States
| | - J Young
- Seattle Children's Hospital, Seattle, WA United States
| | - N Mayer-Hamblett
- Seattle Children's Hospital, Seattle, WA United States; University of Washington, Seattle, WA United States
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Silver JA, Roy CF, Young J, Kost KM. Retrograde cricopharyngeus dysfunction: A Canadian experience fueled by social media. Ear Nose Throat J 2023:1455613231162203. [PMID: 36864723 DOI: 10.1177/01455613231162203] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Affiliation(s)
- Jennifer A Silver
- Department of Otolaryngology - Head and Neck Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - Catherine F Roy
- Department of Otolaryngology - Head and Neck Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - Jonathan Young
- Department of Otolaryngology - Head and Neck Surgery, McGill University Health Centre, Montreal, QC, Canada
| | - Karen M Kost
- Department of Otolaryngology - Head and Neck Surgery, McGill University Health Centre, Montreal, QC, Canada
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Choi S, Hill D, Young J, Cordeiro MF. Image processing and supervised machine learning for retinal microglia characterization in senescence. Methods Cell Biol 2023; 181:109-125. [PMID: 38302234 DOI: 10.1016/bs.mcb.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The process of senescence impairs the function of cells and can ultimately be a key factor in the development of disease. With an aging population, senescence-related diseases are increasing in prevalence. Therefore, understanding the mechanisms of cellular senescence within the central nervous system (CNS), including the retina, may yield new therapeutic pathways to slow or even prevent the development of neuro- and retinal degenerative diseases. One method of probing the changing functions of senescent retinal cells is to observe retinal microglial cells. Their morphological structure may change in response to their surrounding cellular environment. In this chapter, we show how microglial cells in the retina, which are implicated in aging and diseases of the CNS, can be identified, quantified, and classified into five distinct morphotypes using image processing and supervised machine learning algorithms. The process involves dissecting, staining, and mounting mouse retinas, before image capture via fluorescence microscopy. The resulting images can then be classified by morphotype using a support vector machine (SVM) we have recently described showing high accuracy. This SVM model uses shape metrics found to correspond with qualitative descriptions of the shape of each morphotype taken from existing literature. We encourage more objective and widespread use of methods of quantification such as this. We believe automatic delineation of the population of microglial cells in the retina, could potentially lead to their use as retinal imaging biomarkers for disease prediction in the future.
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Affiliation(s)
- Soyoung Choi
- UCL Institute of Ophthalmology, London, United Kingdom; Novai Ltd, Reading, United Kingdom
| | - Daniel Hill
- UCL Institute of Ophthalmology, London, United Kingdom
| | | | - Maria Francesca Cordeiro
- UCL Institute of Ophthalmology, London, United Kingdom; Novai Ltd, Reading, United Kingdom; Imperial College Ophthalmology Research Group, Imperial College London, London, United Kingdom.
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Mayer-Hamblett N, Zemanick ET, Odem-Davis K, VanDevanter D, Warden M, Rowe SM, Young J, Konstan MW, For-The-Chec-Sc-Study-Group. Characterizing CFTR modulated sweat chloride response across the cf population: Initial results from the CHEC-SC study. J Cyst Fibros 2023; 22:79-88. [PMID: 35871974 PMCID: PMC10103635 DOI: 10.1016/j.jcf.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/24/2022] [Accepted: 07/12/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND CHEC-SC is an ongoing epidemiologic study characterizing modulator-induced sweat chloride (SC) responses across the CF population, with interim results available prior to the availability of triple combination modulator therapy. METHODS Eligible participants had been prescribed a modulator for ≥90 days with re-enrollment allowed upon establishment of a new modulator. Pre-modulator SC values were obtained from chart review; post-modulator sweat was collected and analyzed locally. SC changes were descriptively summarized with biologic sex effects adjusted for age, weight, and CFTR genotype. Heterogeneity in ivacaftor SC response was characterized in relation to published CFTR functional responses. RESULTS 1848 participants provided 2004 SC measurements, 26.2% on ivacaftor, 39.1% on lumacaftor/ivacaftor, and 34.7% on tezacaftor/ivacaftor. Average SC changes for all modulators were consistent with those reported in previous clinical studies, with greater variation in SC response observed among rarer mutations and notable shifts in the proportion with SC <60mmol/L independent of the magnitude of SC change. Ivacaftor induced in vitro CFTR functional change was significantly correlated with ivacaftor-modulated SC response (Pearson correlation= ‒0.52, 95% CI: ‒0.773, ‒0.129). Average SC change from ivacaftor to tezacaftor/ivacaftor was ‒4.9 mmol/L (n=17,95% CI:‒9.3, ‒0.5) and differed from those switching from lumacaftor/ivacaftor (10.0 mmol/L, n=139, 95% CI:7.8,12.3). Sex at birth was not associated with SC response. CONCLUSIONS CHEC-SC is the largest study characterizing modulator-induced SC changes across the CF population. There was a strong association between ivacaftor induced in vitro CFTR function and SC response across a genotypically heterogenous cohort. Biological sex was not associated with SC response.
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Affiliation(s)
- N Mayer-Hamblett
- University of Washington, Seattle, WA, United States; Seattle Children's Hospital, Seattle, WA, United States.
| | - E T Zemanick
- University of Colorado Anschutz Medical Campus, Aurora, CO, United States of America
| | - K Odem-Davis
- Seattle Children's Hospital, Seattle, WA, United States
| | - D VanDevanter
- Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - M Warden
- Seattle Children's Hospital, Seattle, WA, United States
| | - S M Rowe
- University of Alabama at Birmingham, Birmingham, AL, England
| | - J Young
- Seattle Children's Hospital, Seattle, WA, United States
| | - M W Konstan
- Case Western Reserve University School of Medicine, Cleveland, OH, United States; Rainbow Babies and Children's Hospital, Cleveland, OH, United States
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Teuwen LA, Young J, Davies A, Hudson J, Bourlon de los Rios M, Prenen H, Segelov E. 432P Representation of countries and gender in abstracts at the 2022 American Society of Clinical Oncology Annual Scientific Meeting (ASCO ASM). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.463] [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: 12/07/2022] Open
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Barratt J, Dellanna F, Portoles J, Choukroun G, de Nicola L, Reusch M, Young J, Dimković N. Tolérance du roxadustat par rapport aux agents stimulant l’érythropoïèse dans le traitement de l’anémie chez les patients atteints de maladie rénale chronique non dialysés ou incidents en dialyse : analyse groupée de quatre études de phase 3. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.312] [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: 10/14/2022]
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14
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Laidsaar-Powell R, Butow P, Brown B, Mander K, Young J, Stone E, Chin V, Banks E, Lim C, Rankin N. EP10.01-005 Australian Lung Cancer Survivors Experiences of Novel Treatments, Healthcare, and Ongoing Physical and Psychological Needs. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Barratt J, Dellanna F, Portoles J, Choukroun G, De Nicola L, Reusch M, Young J, Jiletcovici A, Dimković N. Bilan martial des patients traités par roxadustat pour anémie liée à leur maladie rénale chronique : analyse post hoc chez les patients non dialysés ou incidents en dialyse inclus dans quatre études de phase 3. Nephrol Ther 2022. [DOI: 10.1016/j.nephro.2022.07.313] [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: 10/14/2022]
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16
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Chin V, Arora H, Senabouth A, Hernandez JA, McCloy R, Simes J, Boyer M, Hogg P, Young J, Joshua A, Brown B, Watkins N, Powell J. EP16.03-041 Single Cell RNA Sequencing Reveals Phenotypic Predispositions to Developing Lung Cancer in Never-Smokers. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1102] [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: 12/01/2022]
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17
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Lei D, Qin K, Pinaya WHL, Young J, Van Amelsvoort T, Marcelis M, Donohoe G, Mothersill DO, Corvin A, Vieira S, Lui S, Scarpazza C, Arango C, Bullmore E, Gong Q, McGuire P, Mechelli A. Graph Convolutional Networks Reveal Network-Level Functional Dysconnectivity in Schizophrenia. Schizophr Bull 2022; 48:881-892. [PMID: 35569019 PMCID: PMC9212102 DOI: 10.1093/schbul/sbac047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND HYPOTHESIS Schizophrenia is increasingly understood as a disorder of brain dysconnectivity. Recently, graph-based approaches such as graph convolutional network (GCN) have been leveraged to explore complex pairwise similarities in imaging features among brain regions, which can reveal abstract and complex relationships within brain networks. STUDY DESIGN We used GCN to investigate topological abnormalities of functional brain networks in schizophrenia. Resting-state functional magnetic resonance imaging data were acquired from 505 individuals with schizophrenia and 907 controls across 6 sites. Whole-brain functional connectivity matrix was extracted for each individual. We examined the performance of GCN relative to support vector machine (SVM), extracted the most salient regions contributing to both classification models, investigated the topological profiles of identified salient regions, and explored correlation between nodal topological properties of each salient region and severity of symptom. STUDY RESULTS GCN enabled nominally higher classification accuracy (85.8%) compared with SVM (80.9%). Based on the saliency map, the most discriminative brain regions were located in a distributed network including striatal areas (ie, putamen, pallidum, and caudate) and the amygdala. Significant differences in the nodal efficiency of bilateral putamen and pallidum between patients and controls and its correlations with negative symptoms were detected in post hoc analysis. CONCLUSIONS The present study demonstrates that GCN allows classification of schizophrenia at the individual level with high accuracy, indicating a promising direction for detection of individual patients with schizophrenia. Functional topological deficits of striatal areas may represent a focal neural deficit of negative symptomatology in schizophrenia.
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Affiliation(s)
| | | | - Walter H L Pinaya
- Department of Biomedical Engineering, School of Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
| | - Jonathan Young
- Department of Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, UK
| | - Therese Van Amelsvoort
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Machteld Marcelis
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands
- Mental Health Care Institute Eindhoven (GGzE), Eindhoven, The Netherlands
| | - Gary Donohoe
- School of Psychology & Center for Neuroimaging and Cognitive Genomics, NUI Galway University, Galway, Ireland
| | - David O Mothersill
- Psychology Department, School of Business, National College of Ireland, Dublin, Ireland
| | - Aiden Corvin
- Department of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Sandra Vieira
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Su Lui
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Cristina Scarpazza
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
- Department of General Psychology, University of Padova, Padova, Italy
- Padova Neuroscience Centre, University of Padova, Padova, Italy
| | - Celso Arango
- Institute of Psychiatry and Mental Health, Department of Child and Adolescent Psychiatry, Hospital General Universitario Gregorio Marañon, School of Medicine, Universidad Complutense Madrid, IiSGM, CIBERSAM, Madrid, Spain
| | - Ed Bullmore
- Brain Mapping Unit, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Qiyong Gong
- To whom correspondence should be addressed; Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, No 37 Guo Xue Xiang, Chengdu, 610041, China; tel: 86-18980601593, fax: 028-85423503,
| | - Philip McGuire
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
| | - Andrea Mechelli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
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18
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Dalgaard F, Fudim M, Al-Khatib S, Friedman D, Abraham WT, Cleland JF, Curtis AB, Gold MR, Kutyifa V, Linde C, Young J, Ali-Ahmad F, Olivas-Martinez A, Inoue LYT, Sanders GD. Cardiac resynchronization therapy in patients with a history of atrial fibrillation: insights from five major clinical trials. Europace 2022. [DOI: 10.1093/europace/euac053.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): National Heart, Lung, and Blood Institute
Background
Many patients with heart failure who are considered for cardiac resynchronization therapy (CRT) have a history of (h/o) atrial fibrillation (AF) but there are doubts about the efficacy of CRT in patients with AF.
Purpose
To investigate the association of CRT on morbidity and mortality among patients with and without a h/o AF.
Methods
Original, patient-level data from five clinical trials of CRT that permitted enrolment of patients with a h/o AF were included: COMPANION, MADIT-CRT, BLOCK HF, REVERSE, and MIRACLE trial. Patients with permanent or persistent AF were excluded from these trials, and therefore from this analysis. The outcomes of interest were the composite endpoint of time to heart failure hospitalization (HFH) or all-cause mortality or all-cause mortality alone. The association of CRT (versus no CRT) with outcomes for patients with and without a h/o AF was assessed using a Bayesian-Weibull survival regression model with random terms for the trial-specific treatment effects and the trial-specific baseline hazard functions including an interaction between history of paroxysmal AF and CRT. All results are presented as hazard ratios (HRs) with 95% posterior credible intervals (CIs) and posterior probabilities of no association, adjusting for baseline characteristics.
Results
A total of 4062 patients were included, 661 (16.3%) of whom had a h/o AF. Patients with a h/o AF were older (mean [SD] age 68 [10] years versus 64 [11] years) and had a higher proportion of ischemic cardiomyopathy (67% versus 53%, p<0.001), a higher baseline serum creatinine (1.3 mg/dl versus 1.2 mg/dl, p<0.001), and a lower left ventricular ejection fraction (25% versus 26%, p<0.001). The HRs for all outcomes and the interaction term are shown in Table 1. For the overall population, CRT delayed the time to HFH or all-cause mortality (HR: 0.74, 95% CI: 0.62 – 0.87, p=0.005); for patients with a h/o AF, it did not (HR: 0.87, 95% CI: 0.64 to 1.19, p=0.37). In this patient-level meta-analysis, CRT was not associated with a reduction in mortality, overall or by h/o AF. Howevber, the interaction (estimate shown as a ratio of HRs) between those with or without a h/o AF and the effects of CRT was not significant for either outcome (Table 1).
Conclusion
In the largest post hoc analysis to date, we confirm the benefits of CRT in patients without a h/o AF in reducing HFH or mortality. There was no statistically significant interaction between CRT and h/o AF for any analysed outcome.
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Affiliation(s)
- F Dalgaard
- Gentofte University Hospital, Gentofte, Denmark
| | - M Fudim
- Duke Clinical Research Institute, Durham, United States of America
| | - S Al-Khatib
- Duke Clinical Research Institute, Durham, United States of America
| | - D Friedman
- Duke Clinical Research Institute, Durham, United States of America
| | - WT Abraham
- The Ohio State University, Division of Cardiovascular Medicine, Columbus, United States of America
| | - JF Cleland
- National Heart and Lung Institute, London, United Kingdom of Great Britain & Northern Ireland
| | - AB Curtis
- University At Buffalo, Department of Medicine, Buffalo, United States of America
| | - MR Gold
- Medical University of South Carolina, Charleston, United States of America
| | - V Kutyifa
- University of Rochester Medical Center, Division of Cardiology, Rochester, United States of America
| | - C Linde
- Karolinska University Hospital, Department of Cardiology, Stockholm, Sweden
| | - J Young
- Cleveland Clinic, Cleveland, United States of America
| | - F Ali-Ahmad
- Duke Clinical Research Institute, Durham, United States of America
| | - A Olivas-Martinez
- University of Washington, Department of Biostatistics, Seattle, United States of America
| | - LYT Inoue
- University of Washington, Department of Biostatistics, Seattle, United States of America
| | - GD Sanders
- Duke Clinical Research Institute, Durham, United States of America
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19
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Ceprnja D, Clark T, Young J, Lee R, Flynn K, Maka K. Evaluating experiences, usability and patient satisfaction with telehealth for tertiary outpatient physiotherapy services during COVID-19: A mixed-methods study. Physiother Theory Pract 2022:1-9. [PMID: 35387568 DOI: 10.1080/09593985.2022.2059423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION In response to the COVID-19 pandemic, telehealth has been rapidly implemented in outpatient services worldwide. However, little is known about the experiences of telehealth in a tertiary outpatient physiotherapy setting. OBJECTIVE 1) describe the experience of physiotherapists and patients who utilized telehealth services in a tertiary health facility; and 2) identify the challenges and opportunities of physiotherapy service provision via telehealth in a tertiary health facility. METHODS A mixed-methods approach was undertaken in the physiotherapy outpatient department between June and October 2020. Patients utilizing telehealth services were invited to complete a purposely designed survey. Physiotherapists completed the Telehealth Usability Questionnaire (TUQ) and provided open-ended responses. Descriptive analysis of quantitative data was completed and thematic analysis was used for qualitative data. RESULTS Patients reported positive experiences with telehealth, with 93% finding it easy to use and 90% satisfied with the time it took to get an appointment. Scores on the TUQ by physiotherapists were highest for usefulness with a mean (SD) score of 6.02 (1.09), while lower scores were seen for reliability with a score of 3.24 (1.48). Five broad themes were identified: 1) connecting with patients during a pandemic; 2) keeping treatment on track; 3) unprepared for the technology challenges; 4) telehealth - not quite the real thing; and 5) better resources to facilitate moving forwards. CONCLUSION While the overall patient experience was high, physiotherapist's satisfaction with telehealth was more varied. Additional work may be needed to improve the technical and logistical aspects of telehealth to support ongoing use in physiotherapy clinical practice.
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Affiliation(s)
- Dragana Ceprnja
- PO Box 533, Physiotherapy Department, Westmead Hospital, Wentworthville, NSW 2145, Australia
| | - Tracey Clark
- PO Box 533, Physiotherapy Department, Westmead Hospital, Wentworthville, NSW 2145, Australia
| | - Jonathan Young
- PO Box 533, Physiotherapy Department, Westmead Hospital, Wentworthville, NSW 2145, Australia
| | - Rebecca Lee
- PO Box 533, Physiotherapy Department, Westmead Hospital, Wentworthville, NSW 2145, Australia
| | - Kylie Flynn
- PO Box 533, Physiotherapy Department, Westmead Hospital, Wentworthville, NSW 2145, Australia
| | - Katherine Maka
- PO Box 533, Physiotherapy Department, Westmead Hospital, Wentworthville, NSW 2145, Australia
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20
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Bruce N, Young J. 347 A Bit of a Headache: Management of Head Injuries in a District General Hospital. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim
Head Injury is a common presentation in our DGH, which covers a large rural area and is now a regional trauma centre. We audited our management of head injuries against current guidelines and planned a new pathway to ensure patients receive the correct advice and follow up on discharge.
Method
Data was requested from IT for all head injury episodes in 2019, to reflect usual numbers pre-pandemic.
Electronic letters, radiology and notes were used to identify whether imaging criteria was met/carried out, discharge destinations, re-presentations, specialty discussions, and head injury advice on discharge.
Results
307 individual patients identified. 13 re-presentations. 10 required neurosurgical discussions
Destinations
226 (73.6%) discharged direct from ED. Admissions: Surgical - 37 (12%), Medical - 6 (2%), Paeds – 14 (4.5%), ITU 2 (0.7%), Did not wait – 2 (0.7%), Not Recorded – 7 (2.3%)
Imaging
100 patients met NICE criteria for CT, 100% were documented in notes and had CT. 76% reported normal, 18% had a bleed, contusion, or haematoma.
HI advice
90% of ED discharges, 16% of Surgical and 16% of medical discharges had head injury discharge advice documented
Conclusions
Guidelines were met for 100% of patients requiring imaging. Head injury advice was well documented in ED but fell down in ward paperwork. We have written a robust pathway where all inpatients have a proforma completed during admission with prompts for discharge advice and rehab referral where appropriate, this is currently undergoing a re-audit to ensure improvement and if successful will become an established part of the trauma pathway in our hospital.
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Affiliation(s)
- N. Bruce
- NHS Borders, Melrose, United Kingdom
| | - J. Young
- NHS Borders, Melrose, United Kingdom
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21
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Hobbs J, Marks B, Young J. 238 The Use of MRCP in the Assessment of Choledocholithiasis in Patients Presenting with Symptomatic Gallstone Disease. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Aim
Magnetic Resonance Cholangiopancreatography (MRCP) is the investigation of choice for choledocholithiasis; however, use is varied and guidelines vague. The National Institute for Health and Care (NICE) recommend MRCP when common bile duct (CBD) dilatation ≥ 8mm or liver function tests (LFTs) are abnormal but do not quantify this further. The Sunflower Study classifies patients as “high-risk” for choledocholithiasis if alanine aminotransferase (ALT) ≥ 80 IU/L, alkaline phosphatase (ALP) ≥ 200 IU/L or CBD ≥ 8mm. We aimed to assess compliance with NICE criteria and determine what biochemical abnormalities are most associated with choledocholithiasis.
Method
A retrospective analysis of inpatient MRCPs performed at QEH between March and May 2021 was performed (n = 72). Pre-MRCP bloods and imaging were used to assess concordance with NICE guidelines. We compared LFTs between patients with and without choledocholithiasis, looking for significant differences.
Results
84.7% of MRCPs were performed in accordance with NICE guidance, of which 31.1% demonstrated choledocholithiasis. No cases of choledocholithiasis were identified if NICE criteria were not fulfilled. A significant difference between the mean values of gamma glutamyltransferase (GGT) and ALP was noted between patients with and without choledocholithiasis.
Conclusions
We identified that the majority of MRCPs were performed in accordance with guidance. Significantly, no cases of choledocholithiasis were identified if these criteria were not met. Although our sample size was small, we found the most specific biochemical markers were ALP and GGT and propose that further research with larger cohorts may help develop a risk stratification tool to aid decision making.
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Affiliation(s)
- J. Hobbs
- Gateshead Health NHS Foundation Trust, Gateshead, United Kingdom
| | - B. Marks
- County Durham and Darlington NHS Foundation Trust, Darlington, United Kingdom
| | - J. Young
- Gateshead Health NHS Foundation Trust, Gateshead, United Kingdom
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22
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Roy CF, Turkdogan S, Silver JA, Young J. Herpes Zoster of The Larynx: A Narrow Diagnostic and Therapeutic Window. Ear Nose Throat J 2022:1455613221077594. [PMID: 35166603 DOI: 10.1177/01455613221077594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024] Open
Abstract
We hereby present a rare case of laryngeal zoster presenting with unilateral odynophagia and hemifacial pain in an immunocompetent host. Visualization of the characteristic vesicles is challenging given their short-lived and at times delayed appearance; thus, laryngeal zoster may be a largely unrecognized cause of laryngitis and cranial neuropathies. Heightened awareness may improve prompt diagnosis, referral and initiation of antiviral therapy, while guiding patient counselling on the associated long-term sequelae such as voice and swallowing impairments, and post-herpetic neuralgia.
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Affiliation(s)
- Catherine F Roy
- Department of Otolaryngology Head and Neck Surgery, 54473McGill University Health Centre, Montreal, QC, Canada
| | - Sena Turkdogan
- Department of Otolaryngology Head and Neck Surgery, 54473McGill University Health Centre, Montreal, QC, Canada
| | - Jennifer A Silver
- Department of Otolaryngology Head and Neck Surgery, 54473McGill University Health Centre, Montreal, QC, Canada
| | - Jonathan Young
- Department of Otolaryngology Head and Neck Surgery, 54473McGill University Health Centre, Montreal, QC, Canada
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23
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Young J, Mercieca L, Ceci M, Pisani D, Betts A, Boffa M. A case of bullous pemphigoid after the SARS-CoV-2 mRNA vaccine. J Eur Acad Dermatol Venereol 2022; 36:e13-e16. [PMID: 34547137 PMCID: PMC8661451 DOI: 10.1111/jdv.17676] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/16/2021] [Indexed: 12/16/2022]
Affiliation(s)
- J. Young
- Department of DermatologyMater Dei HospitalMsidaMalta
| | - L. Mercieca
- Department of DermatologyMater Dei HospitalMsidaMalta
| | - M. Ceci
- Department of PathologyMater Dei HospitalMsidaMalta
| | - D. Pisani
- Department of PathologyMater Dei HospitalMsidaMalta
| | - A. Betts
- Department of PathologyMater Dei HospitalMsidaMalta
| | - M.J. Boffa
- Department of DermatologyMater Dei HospitalMsidaMalta
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24
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Lin R, Ritter E, Flynn J, Ho C, Ruiz J, Jakubowski A, Papadopoulos E, Shaffer B, Castro-Malaspina H, Cho C, Ponce D, Barker J, Tamari R, Sauter C, Gyurkocza B, van den Brink M, Young J, Perales M, Devlin S, Wong P, Giralt S. Aging-related, Senescence-associated Secretory Phenotype and Allogeneic Hematopoietic Cell Transplantation Outcomes in Older Adults. J Geriatr Oncol 2021. [DOI: 10.1016/s1879-4068(21)00355-6] [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: 10/19/2022]
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25
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Duran‐Ortiz S, List EO, Ikeno Y, Young J, Basu R, Bell S, McHugh T, Funk K, Mathes S, Qian Y, Kulkarni P, Yakar S, Berryman DE, Kopchick JJ. Growth hormone receptor gene disruption in mature-adult mice improves male insulin sensitivity and extends female lifespan. Aging Cell 2021; 20:e13506. [PMID: 34811874 PMCID: PMC8672790 DOI: 10.1111/acel.13506] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/23/2021] [Accepted: 10/18/2021] [Indexed: 12/27/2022] Open
Abstract
Studies in multiple species indicate that reducing growth hormone (GH) action enhances healthy lifespan. In fact, GH receptor knockout (GHRKO) mice hold the Methuselah prize for the world's longest-lived laboratory mouse. We previously demonstrated that GHR ablation starting at puberty (1.5 months), improved insulin sensitivity and female lifespan but results in markedly reduced body size. In this study, we investigated the effects of GHR disruption in mature-adult mice at 6 months old (6mGHRKO). These mice exhibited GH resistance (reduced IGF-1 and elevated GH serum levels), increased body adiposity, reduced lean mass, and minimal effects on body length. Importantly, 6mGHRKO males have enhanced insulin sensitivity and reduced neoplasms while females exhibited increased median and maximal lifespan. Furthermore, fasting glucose and oxidative damage was reduced in females compared to males irrespective of Ghr deletion. Overall, disrupted GH action in adult mice resulted in sexual dimorphic effects suggesting that GH reduction at older ages may have gerotherapeutic effects.
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Affiliation(s)
- Silvana Duran‐Ortiz
- Edison Biotechnology Institute Ohio University Athens Ohio USA
- Molecular and Cellular Biology program Ohio University Athens Ohio USA
- Department of Biological Sciences College of Arts and Sciences Ohio University Athens Ohio USA
| | - Edward O. List
- Edison Biotechnology Institute Ohio University Athens Ohio USA
| | - Yuji Ikeno
- Barshop Institute for Longevity and Aging Studies San Antonio Texas USA
| | - Jonathan Young
- Department of Biomedical Sciences Heritage College of Osteopathic Medicine Ohio University Athens Ohio USA
| | - Reetobrata Basu
- Edison Biotechnology Institute Ohio University Athens Ohio USA
| | - Stephen Bell
- Department of Biomedical Sciences Heritage College of Osteopathic Medicine Ohio University Athens Ohio USA
| | - Todd McHugh
- Department of Biological Sciences College of Arts and Sciences Ohio University Athens Ohio USA
| | - Kevin Funk
- Edison Biotechnology Institute Ohio University Athens Ohio USA
| | - Samuel Mathes
- Edison Biotechnology Institute Ohio University Athens Ohio USA
| | - Yanrong Qian
- Edison Biotechnology Institute Ohio University Athens Ohio USA
| | - Prateek Kulkarni
- Molecular and Cellular Biology program Ohio University Athens Ohio USA
- Department of Biological Sciences College of Arts and Sciences Ohio University Athens Ohio USA
| | - Shoshana Yakar
- Department of Molecular Pathobiology David B. Kriser Dental Center New York University College of Dentistry New York New York USA
| | - Darlene E. Berryman
- Edison Biotechnology Institute Ohio University Athens Ohio USA
- Molecular and Cellular Biology program Ohio University Athens Ohio USA
- Department of Biomedical Sciences Heritage College of Osteopathic Medicine Ohio University Athens Ohio USA
- Diabetes Institute Ohio University Athens Ohio USA
| | - John J. Kopchick
- Edison Biotechnology Institute Ohio University Athens Ohio USA
- Molecular and Cellular Biology program Ohio University Athens Ohio USA
- Department of Biomedical Sciences Heritage College of Osteopathic Medicine Ohio University Athens Ohio USA
- Diabetes Institute Ohio University Athens Ohio USA
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26
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Mao AW, Barck H, Young J, Paley A, Mao JH, Chang H. Identification of a novel cancer microbiome signature for predicting prognosis of human breast cancer patients. Clin Transl Oncol 2021; 24:597-604. [PMID: 34741726 DOI: 10.1007/s12094-021-02725-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 08/27/2021] [Accepted: 10/16/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Prognosis of breast cancer (BC) patients differs considerably and identifying reliable prognostic biomarker(s) is imperative. With evidence that the microbiome plays a critical role in the response to cancer therapies, we aimed to identify a cancer microbiome signature for predicting the prognosis of BC patients. METHODS The TCGA BC microbiome data (TCGA-BRCA-microbiome) was downloaded from cBioPortal. Univariate and multivariate Cox regression analyses were used to examine association of microbial abundance with overall survival (OS) and to identify a microbial signature for creating a prognostic scoring model. The performance of the scoring model was assessed by the area under the ROC curve (AUC). Nomograms using the microbial signature, clinical factors, and molecular subtypes were established to predict OS and progression-free survival (PFS). RESULTS Among 1406 genera, the abundances of 94 genera were significantly associated with BC patient OS in TCGA-BRCA-microbiome dataset. From that set we identified a 15-microbe prognostic signature and developed a 15-microbial abundance prognostic scoring (MAPS) model. Patients in low-risk group significantly prolong OS and PFS as compared to those in high-risk group. The time-dependent ROC curves with MAPS showed good predictive efficacy both in OS and PFS. Moreover, MAPS is an independent prognostic factor for OS and PFS over clinical factors and PAM50-based molecular subtypes and superior to the previously published 12-gene signature. The integration of MAPS into nomograms significantly improved prognosis prediction. CONCLUSION MAPS was successfully established to have independent prognostic value, and our study provides a new avenue for developing prognostic biomarkers by microbiome profiling.
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Affiliation(s)
- A W Mao
- Berkeley Biomedical Data Science Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - H Barck
- Berkeley Biomedical Data Science Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - J Young
- Berkeley Biomedical Data Science Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - A Paley
- Berkeley Biomedical Data Science Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - J -H Mao
- Berkeley Biomedical Data Science Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. .,Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - H Chang
- Berkeley Biomedical Data Science Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. .,Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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Maselli D, Carstens D, Yang D, Mu F, Young J, Cook E, Betts K, Chung Y. P061 BENRALIZUMAB IS EFFECTIVE IN REDUCING ASTHMA EXACERBATIONS: RESULTS FROM THE ZEPHYR 2 STUDY. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Qiu Y, McEwen C, Bhagirath V, Chan N, Eikelboom J, Eikelboom R, Young J, Whitlock R, Belley-Cote E. Evaluating direct oral anticoagulants versus vitamin K antagonists for treatment of left ventricular thrombus: a systematic review and meta-analysis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
Left ventricular thrombi are associated with high rates of stroke and systemic embolism (1). While vitamin K antagonists (VKAs) have historically been the anticoagulant of choice, they have a narrow therapeutic window and require frequent monitoring. Direct oral anticoagulants (DOACs) offer more predictable anticoagulation but the use of DOACs to treat left ventricular thrombus has not been well studied (1,2). Guideline recommendations around the topic are based on expert consensus and very low-quality evidence.
Purpose
This systematic review and meta-analysis compares DOACs or VKAs in the treatment of left ventricular thrombus. Outcomes of interest were stroke and systemic embolism, thrombus resolution, any bleeding, major bleeding, and mortality.
Methods
We searched CENTRAL, MEDLINE, EMBASE, CINAHL, ACPJC, and Web of Science for studies comparing DOACs and VKAs in the treatment of left ventricular thrombus. We also searched reference lists from included studies and relevant conferences' proceedings. Two reviewers independently screened titles and abstracts and then the full-text of potentially relevant citations in duplicate. They then extracted data and evaluated risk of bias in duplicate. The data was analyzed using Revman 5.3. We used the DerSimonian and Laird random-effects model to pool the weighted effect of estimates across all studies. The pooled relative risks (RRs) were calculated with corresponding 95% confidence intervals (CIs). We assessed the quality of evidence for each outcome using the Grading of Recommendations, Assessment, Development, and Evaluation approach.
Results
Of 443 citations screened, 12 observational studies (n=2,225) were included. We found no randomized controlled trial addressing the question. Most included studies were at high risk of bias due to unmatched baseline variables. We found no significant difference in any of our outcomes with DOACs versus VKAs: stroke and systemic embolism (RR 1.14, 95% CI [0.82, 1.58], p=0.43), thrombus resolution (RR 1.02, 95% CI [0.91, 1.15], p=0.69), any bleeding (RR 1.47, 95% CI [0.65, 3.33], p=0.36), major bleeding (RR 0.22, 95% CI [0.01, 4.21], p=0.32), and mortality (RR 0.99, 95% CI [0.67, 1.45], p=0.95). Evidence for each of these outcomes was of very low-quality due to risk of bias, inconsistency, and imprecision of the studies.
Conclusions
Very low quality evidence suggests no difference in outcomes with DOACs versus VKAs in the treatment of left ventricular thrombus. More robust data are needed to guide clinicians.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Qiu
- Michael G. DeGroote School of Medicine, Hamilton, Canada
| | - C McEwen
- Michael G. DeGroote School of Medicine, Hamilton, Canada
| | - V Bhagirath
- Division of Hematology and Thromboembolism, Department of Medicine, Hamilton, Canada
| | - N Chan
- Division of Hematology and Thromboembolism, Department of Medicine, Hamilton, Canada
| | - J Eikelboom
- Population Health Research Institute, Hamilton, Canada
| | - R Eikelboom
- Max Rady College of Medicine, Department of Cardiac Surgery, Winnipeg, Canada
| | - J Young
- McMaster University, Health Sciences Library, Hamilton, Canada
| | - R Whitlock
- Population Health Research Institute, Hamilton, Canada
| | - E Belley-Cote
- Population Health Research Institute, Hamilton, Canada
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Boyle C, Young J. 219 Have New National Guidelines Changed Practice in Referrals with Suspected Ureteric Colic? Br J Surg 2021. [DOI: 10.1093/bjs/znab259.1073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Aim
To assess how many patients had a non-contrast CT as first-line investigation for suspected renal colic, and how this was affected by the release of the 2019 NICE guidelines. A secondary aim was to assess the proportion of patients who had CT KUBs that demonstrated a ureteric calculus.
Method
CT KUB scans performed over two separate 3 month periods were identified. These reflected periods of time before and after the new NICE guidelines. Electronic records were used to assess if the patients had an ultrasound performed as the initial diagnostic investigation, instead of a CT scan. The results of the scans were reviewed to identify if a ureteric or renal calculus had been positively identified.
Results
In the period before the new guidelines, 61 patients were scanned. 4 had an ultrasound to assess for a stone prior to a CT. All of these patients were medical inpatients. None of the ultrasounds diagnosed a stone. 22/61 patients had CT-proven stones (36%) In the period after the new guidelines, 79 patients were scanned. 12 had an ultrasound to assess for a stone prior to a CT. 8 were medical patients, 3 were surgical and 1 was gynaecological. 1 ultrasound diagnosed a stone. 28/79 patients had CT-proven stones (35.4%)
Conclusions
The release of new guidelines did not improved compliance with suggested imaging pathways. This clearly demonstrates an area for improvement. It is also worth noting that only 1/3 of referrals with suspected renal colic did actually have a stone, which has implications for specialty referral pathways.
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Affiliation(s)
- C Boyle
- Borders General Hospital, Melrose, United Kingdom
| | - J Young
- Borders General Hospital, Melrose, United Kingdom
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Qiu Y, McEwen C, Bhagirath V, Chan N, Eikelboom J, Eikelboom R, Young J, Whitlock R, Belley-Cote E. EVALUATING DIRECT ORAL ANTICOAGULANTS VERSUS VITAMIN K ANTAGONISTS FOR TREATMENT OF LEFT VENTRICULAR THROMBUS: A SYSTEMATIC REVIEW AND META-ANALYSIS. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.036] [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: 10/20/2022] Open
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Flaender M, Young J, Duchemin-Pelletier E, Lorintiu O, Compere L, Champetier T, Ventre E. MYOTONIC DYSTROPHY. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kearney RS, Ji C, Warwick J, Parsons N, Brown J, Harrison P, Young J, Costa ML. Effect of Platelet-Rich Plasma Injection vs Sham Injection on Tendon Dysfunction in Patients With Chronic Midportion Achilles Tendinopathy: A Randomized Clinical Trial. JAMA 2021; 326:137-144. [PMID: 34255009 PMCID: PMC8278266 DOI: 10.1001/jama.2021.6986] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [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: 12/15/2022]
Abstract
IMPORTANCE Platelet-rich plasma injections are used as a treatment for chronic midportion Achilles tendinopathy, but evidence for this treatment is limited. OBJECTIVE In adults with midportion Achilles tendinopathy, to assess the effects of a single platelet-rich plasma injection, compared with sham injection, on the outcome of the Victorian Institute of Sport Assessment-Achilles (VISA-A) score (a single composite measure of Achilles tendinopathy severity). DESIGN, SETTING, AND PARTICIPANTS A participant-blinded, multicenter randomized clinical trial that included 240 people from 24 sites assigned to either a platelet-rich plasma injection or a sham injection between April 2016 and February 2020. Final follow-up was July 2020. Participants were older than 18 years with midportion Achilles tendon pain for more than 3 months as confirmed by ultrasound, magnetic resonance imaging, or both. INTERVENTIONS A single intratendinous platelet-rich plasma injection (n = 121) or a single sham injection (insertion of a subcutaneous dry needle not entering the tendon) (n = 119). MAIN OUTCOMES AND MEASURES The primary outcome was the VISA-A score, measured 6 months after treatment allocation. The VISA-A score contains 8 questions that cover 3 domains of pain, function, and activity, analyzed as a composite score (range, 0 [worst symptoms] to 100 [no symptoms]; minimal clinically important difference in score, 12 points). The primary analysis was adjusted for laterality, age, sex, and baseline VISA-A score. RESULTS Among 240 patients assigned to a platelet-rich plasma or sham injection (mean age, 52 years; 138 [58%] women), 221 (92%) completed the trial. At 6-month follow-up, mean VISA-A score values in the plasma-rich plasma group vs the sham injection group were 54.4 vs 53.4 (adjusted mean difference, -2.7 [95% CI, -8.8 to 3.3]). The most common adverse events compared between patients in the platelet-rich plasma group vs the sham group were injection site discomfort (97 vs 73 patients), swelling (56 vs 52 patients) and bruising (48 vs 49 patients). CONCLUSIONS AND RELEVANCE Among patients with chronic midportion Achilles tendinopathy, treatment with a single injection of intratendinous platelet-rich plasma, compared with insertion of a subcutaneous dry needle, did not reduce Achilles tendon dysfunction at 6 months. These findings do not support the use of this treatment for chronic midportion Achilles tendinopathy. TRIAL REGISTRATION isrctn.org Identifier: ISRCTN13254422.
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Affiliation(s)
- Rebecca S. Kearney
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
- University Hospitals of Coventry and Warwickshire, Coventry, United Kingdom
| | - Chen Ji
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Jane Warwick
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Nicholas Parsons
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Jaclyn Brown
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Paul Harrison
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Jonathan Young
- University Hospitals of Coventry and Warwickshire, Coventry, United Kingdom
| | - Matthew L. Costa
- Oxford Trauma and Emergency Care, Nuffield Department of Rheumatology, Musculoskeletal and Orthopaedic Sciences, University of Oxford, Oxford, United Kingdom
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Cohen S, Singh R, Khalid N, Young J, Aldiwani M, Roy D, Edwards I. 468 IMPROVING ADVANCE CARE PLANNING SKILLS IN JUNIOR DOCTORS. Age Ageing 2021. [DOI: 10.1093/ageing/afab116.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Junior doctors are increasingly encountering Advance Care Planning (ACP) when they look after frail, older or multi-morbid patients during their hospital rotations. However, there remains a lack of formal training and resources, particularly with DNACPR discussions and when engaging patients and their loved ones with Emergency Health Care Planning (EHCP). We aimed to assess the need for ACP, improve the infrastructure by which ACP is delivered, and better support junior doctors to have these difficult conversations.
Method
Discharges from the Geriatrics Department at Kettering General Hospital were reviewed initially in May 2019 and again in January 2020 following intervention. We introduced a focused communication skills training session delivered at departmental teaching, which included a combination of simulation training and lectures. We additionally designed and implemented an EHCP template to aid junior doctors’ discussions. This could also be copied to the discharge letter, to facilitate safe transfer of care to primary care.
Results
In May 2019 of 32 patients, 100% met at least one SPICTTM criterion, with median of 4 criteria, thus indicating a high need for ACP in this cohort. Despite this, only one discharge letter included an EHCP and two had a request for GP colleagues to complete one. Evaluation of discharges again in January of 2020 reconfirmed a similar need for ACP, but following our interventions, the number of EHCP’s performed had increased. Of 22 identified patients 4 had a completed EHCP and 3 were requested for completion by their GP. Qualitative questionnaires demonstrated an improvement in both knowledge and confidence amongst junior doctors following the training session.
Conclusion
We have shown that there is a necessity for ACP to be considered for Geriatrics inpatients, and that providing structure and training in this challenging area offers benefit to both patients and junior doctors.
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Affiliation(s)
| | | | | | | | | | - D Roy
- Kettering General Hospital
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Desai S, Laplant B, Macon W, Young J, King R, Wang Y, Inwards D, Micallef I, Johnston PB, Porrata LF, Ansell SM, Habermann TM, Witzig TE, Nowakowski GS. INTERIM PET/CT PREDICTS OUTCOMES OF DIFFUSE LARGE B‐CELL LYMPHOMA (DLBCL) TREATED WITH FRONTLINE LENALIDOMIDE/RCHOP (R2CHOP): LONG‐TERM ANALYSIS OF MC078E. Hematol Oncol 2021. [DOI: 10.1002/hon.83_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- S. Desai
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - B. Laplant
- Mayo Clinic Department of Quantitative Health Sciences Rochester Minnesota USA
| | - W. Macon
- Mayo Clinic Department of Laboratory Medicine and Pathology Rochester Minnesota USA
| | - J. Young
- Mayo Clinic Division of Nuclear Medicine Department of Radiology Rochester Minnesota USA
| | - R. King
- Mayo Clinic Department of Laboratory Medicine and Pathology Rochester Minnesota USA
| | - Y. Wang
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - D. Inwards
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - I. Micallef
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - P. B. Johnston
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - L. F. Porrata
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - S. M. Ansell
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - T. M. Habermann
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - T. E. Witzig
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
| | - G. S. Nowakowski
- Mayo Clinic Division of Hematology Department of Medicine Rochester Minnesota USA
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Bakshy K, Heimeier D, Schwartz JC, Glass EJ, Wilkinson S, Skuce RA, Allen AR, Young J, McClure JC, Cole JB, Null DJ, Hammond JA, Smith TPL, Bickhart DM. Development of polymorphic markers in the immune gene complex loci of cattle. J Dairy Sci 2021; 104:6897-6908. [PMID: 33685702 DOI: 10.3168/jds.2020-19809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/18/2021] [Indexed: 11/19/2022]
Abstract
The addition of cattle health and immunity traits to genomic selection indices holds promise to increase individual animal longevity and productivity, and decrease economic losses from disease. However, highly variable genomic loci that contain multiple immune-related genes were poorly assembled in the first iterations of the cattle reference genome assembly and underrepresented during the development of most commercial genotyping platforms. As a consequence, there is a paucity of genetic markers within these loci that may track haplotypes related to disease susceptibility. By using hierarchical assembly of bacterial artificial chromosome inserts spanning 3 of these immune-related gene regions, we were able to assemble multiple full-length haplotypes of the major histocompatibility complex, the leukocyte receptor complex, and the natural killer cell complex. Using these new assemblies and the recently released ARS-UCD1.2 reference, we aligned whole-genome shotgun reads from 125 sequenced Holstein bulls to discover candidate variants for genetic marker development. We selected 124 SNPs, using heuristic and statistical models to develop a custom genotyping panel. In a proof-of-principle study, we used this custom panel to genotype 1,797 Holstein cows exposed to bovine tuberculosis (bTB) that were the subject of a previous GWAS study using the Illumina BovineHD array. Although we did not identify any significant association of bTB phenotypes with these new genetic markers, 2 markers exhibited substantial effects on bTB phenotypic prediction. The models and parameters trained in this study serve as a guide for future marker discovery surveys particularly in previously unassembled regions of the cattle genome.
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Affiliation(s)
- K Bakshy
- Dairy Forage Research Center, USDA-ARS, Madison, WI 53706
| | - D Heimeier
- The Pirbright Institute, Ash Road, Pirbright, Surrey GU24 0NF, UK
| | - J C Schwartz
- The Pirbright Institute, Ash Road, Pirbright, Surrey GU24 0NF, UK
| | - E J Glass
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush EH25 9RG, Edinburgh, UK
| | - S Wilkinson
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush EH25 9RG, Edinburgh, UK
| | - R A Skuce
- Agri-Food and Biosciences Institute, Stormont, Belfast, Northern Ireland BT4 3SD, UK
| | - A R Allen
- Agri-Food and Biosciences Institute, Stormont, Belfast, Northern Ireland BT4 3SD, UK
| | - J Young
- Dairy Forage Research Center, USDA-ARS, Madison, WI 53706
| | - J C McClure
- Dairy Forage Research Center, USDA-ARS, Madison, WI 53706
| | - J B Cole
- Animal Genomics and Improvement Laboratory, USDA-ARS, Beltsville, MD 20705
| | - D J Null
- Animal Genomics and Improvement Laboratory, USDA-ARS, Beltsville, MD 20705
| | - J A Hammond
- The Pirbright Institute, Ash Road, Pirbright, Surrey GU24 0NF, UK
| | - T P L Smith
- Meat Animal Research Center, USDA-ARS, Clay Center, NE 68933
| | - D M Bickhart
- Dairy Forage Research Center, USDA-ARS, Madison, WI 53706.
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Young J, Mizzi S, Mercieca L, Boffa MJ. A non-healing ulcer caused by a retained fish spine. J Eur Acad Dermatol Venereol 2021; 35:e693-e695. [PMID: 34050999 DOI: 10.1111/jdv.17416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J Young
- Department of Dermatology, Mater Dei Hospital, Msida, Malta
| | - S Mizzi
- Department of Dermatology, Mater Dei Hospital, Msida, Malta
| | - L Mercieca
- Department of Dermatology, Mater Dei Hospital, Msida, Malta
| | - M J Boffa
- Department of Dermatology, Mater Dei Hospital, Msida, Malta
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McLean R, Young J, Musbahi A, Lee JX, Hidayat H, Abdalla N, Chowdhury S, Baker E, Etherson K. 94 An Observational Cohort Study to Evaluate Volume and Severity of Emergency General Surgery Admissions During The COVID-19 Pandemic: Is There A “Lockdown” Effect? Br J Surg 2021. [PMCID: PMC8135742 DOI: 10.1093/bjs/znab134.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Introduction The COVID-19 pandemic has led to changes in NHS surgical service provision. This, combined with the government-imposed lockdown, may have impacted on patient attendance, severity of surgical disease, and outcomes. This study aimed to investigate a possible ‘lockdown’ effect on the volume and severity of surgical admissions and outcomes. Method Two cohorts of adult emergency general surgery admissions 30 days immediately before (16/2/2020 to 15/3/2020), and after UK government advice (16/3/2020 to 15/4/2020). Data were collected relating to patient characteristics, disease severity, clinical outcomes, and compared between these groups. Results Following lockdown, a significant reduction in median daily admissions from 7 to 3 (p < 0.001) was observed. Post-lockdown patients were significantly older, frailer with higher inflammatory indices and rates of AKI, and more likely to present with gastrointestinal cancer, obstruction, and perforation. Patients had significantly higher rates of Clavien-Dindo Grade ≥3 complications (p = 0.001), all-cause 30-day mortality (8.5% vs. 2.9%, p = 0.028), but no significant difference was observed in operative 30-day mortality. Conclusions There appears to be a “lockdown” effect on general surgical admissions with fewer admissions, more acutely unwell patients, and an increase in all-cause 30-day mortality. Patients should be advised to present promptly, and this should be reinforced for future lockdowns during the pandemic.
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Affiliation(s)
- R McLean
- University Hospital of North Tees, Stockton, United Kingdom
| | - J Young
- University Hospital of North Tees, Stockton, United Kingdom
| | - A Musbahi
- University Hospital of North Tees, Stockton, United Kingdom
| | - J X Lee
- University Hospital of North Tees, Stockton, United Kingdom
| | - H Hidayat
- University Hospital of North Tees, Stockton, United Kingdom
| | - N Abdalla
- University Hospital of North Tees, Stockton, United Kingdom
| | - S Chowdhury
- University Hospital of North Tees, Stockton, United Kingdom
| | - E Baker
- University Hospital of North Tees, Stockton, United Kingdom
| | - K Etherson
- University Hospital of North Tees, Stockton, United Kingdom
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Duran-Ortiz S, List EO, Bell S, Basu R, Young J, McHugh T, Mathes SC, Funk KR, Qian Y, Berryman DE, Kopchick JJ. Growth Hormone Receptor Gene Disruption in Mature-Adult Mice Improves Glucose Metabolism and Lifespan in Females. J Endocr Soc 2021. [PMCID: PMC8265872 DOI: 10.1210/jendso/bvab048.910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Growth hormone (GH) serves an important role in early and adult life. Reduction of GH action has been shown to increase life span in many species of animals. In fact, mice bearing a congenital disruption of GH receptor (GHR) gene (GHRKO) hold the record for the longest-lived laboratory mice. In addition to extended life span, these mice show improved health with lower rates of cancer, increased insulin sensitivity, and resistance to age-associated cognitive decline. Furthermore, humans with decreased GH action due to inactivating mutations in the GHR (Laron Syndrome patients) are resistant to cancer and diabetes. Even though the beneficial effects of congenital Ghr gene disruption are well studied, the consequences of postnatal disruption of GH action were unknown. Previously our laboratory generated a mouse line with disrupted GH action at 1.5 months of age (1.5mGHRKO mice). Results showed that these mice had improved insulin sensitivity and increased maximal lifespan only in females, yet growth retardation was still present. To consider decreased GH action as a possible therapeutic to extend healthy lifespan, it was imperative to elucidate the effects of disrupting Ghr gene at a mature-adult age, well after the developmental and growth period of the mice. To this end, we hypothesized that removal of GH action in adult life would convey some of the same health and life span benefits seen in the GHRKO mice without the reduced body length. To test this hypothesis, we used the cre-lox system to generate mice with a disrupted Ghr gene at a mature-adult age (6 months), referred as 6mGHRKO mice. We then performed a phenotypic and lifespan characterization, and tested for molecular mechanisms known to be associated with extended longevity, namely oxidative stress resistance and mTOR modulation. We found that similar to GHRKO and 1.5mGHRKO mice, disruption of GHR at 6 months of age resulted in mice with increased adipose tissue mass, decreased lean mass, high circulating GH, but decreased insulin growth factor-1 levels compared to control mice. Furthermore, the 6mGHRKO mice displayed significantly improved insulin sensitivity in males, with no changes in glucose tolerance. Also, serum levels of inflammatory markers and liver triglycerides were unchanged in these mice. Experiments to evaluate the status of oxidative damage and mTOR activation in liver, skeletal muscle and subcutaneous adipose tissue of male and female 6mGHRKO mice showed a tissue-specificity and sexual dimorphism in these results. Importantly, male and female 6mGHRKO mice showed no change in body length, but mean, median and maximal lifespan were significantly extended in females. In conclusion, disruption of GH action well past sexual maturation produces beneficial effects on insulin sensitivity and aging in mice. Acknowledgements: This work is supported by the State of Ohio’s Eminent Scholar Program, by NIH grant AG059779 and by the AMVETS.
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Abstract
Growth hormone (GH) induces pleiotropic effects on growth and metabolism via binding and subsequent activation of the growth hormone receptor (GHR) and its downstream signaling pathways. Growth hormone insensitivity (GHI) describes a group of disorders in which there is resistance to the action of GH and resultant insulin-like growth factor I (IGF-I) deficiency. GHI is commonly due to genetic disorders of the GH receptor causing GH receptor deficiency (e.g. Laron Syndrome (LS)), decreased activation of GHR, or defects in post-receptor signaling molecules. Genetically altered mouse lines have been invaluable to better understand the physiological impact of GHI due to the ability to do invasive and longitudinal measures of metabolism, growth, and health on a whole animal or in individual tissues/cells. In the current review, the phenotype of mouse lines with GHI will be reviewed. Mouse lines to be discussed include: 1) GHR-/- mice with a gene disruption in the GHR that results in no functional GHR throughout life, also referred to as the Laron mouse, 2) mice with temporal loss of GHR (aGHRKO) starting at 6 weeks of age, 3) mice transgenic for a GHR antagonist (GHA mice), 4) mice with GHI in select tissues or cells generated via Cre-lox or related technology, and 5) assorted mice with defects in post-receptor signaling molecules. Collectively, these mouse lines have revealed an intriguing role of GH action in health, disease, and aging.
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Affiliation(s)
- Jonathan Young
- Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, 45701, USA
- Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, OH, USA
| | - Stephen Bell
- Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, 45701, USA
- Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, OH, USA
| | - Yanrong Qian
- Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, OH, USA
| | - Caroline Hyman
- Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, 45701, USA
| | - Darlene E Berryman
- Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, 45701, USA.
- Edison Biotechnology Institute, Konneker Research Labs, Ohio University, Athens, OH, USA.
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Boateng BA, Oliveto AH, Bailey M, Hunter-Lewis M, Young J, James LP. Utility of Protocol Development Software for IRB Protocol Development: Experiences from one Institution. SOCRA Source 2021; 107:39-42. [PMID: 34646090 PMCID: PMC8508970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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James GD, Symeonides S, Marshall J, Young J, Clack G. Assessment of various continual reassessment method models for dose-escalation phase 1 oncology clinical trials: using real clinical data and simulation studies. BMC Cancer 2021; 21:7. [PMID: 33402104 PMCID: PMC7786936 DOI: 10.1186/s12885-020-07703-6] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 11/30/2020] [Indexed: 11/10/2022] Open
Abstract
Background The continual reassessment method (CRM) identifies the maximum tolerated dose (MTD) more efficiently and identifies the true MTD more frequently compared to standard methods such as the 3 + 3 method. An initial estimate of the dose-toxicity relationship (prior skeleton) is required, and there is limited guidance on how to select this. Previously, we compared the CRM with six different skeletons to the 3 + 3 method by conducting post-hoc analysis on a phase 1 oncology study (AZD3514), each CRM model reduced the number of patients allocated to suboptimal and toxic doses. This manuscript extends this work by assessing the ability of the 3 + 3 method and the CRM with different skeletons in determining the true MTD of various “true” dose-toxicity relationships. Methods One thousand studies were simulated for each “true” dose toxicity relationship considered, four were based on clinical trial data (AZD3514, AZD1208, AZD1480, AZD4877), and four were theoretical. The 3 + 3 method and 2-stage extended CRM with six skeletons were applied to identify the MTD, where the true MTD was considered as the largest dose where the probability of experiencing a dose limiting toxicity (DLT) is ≤33%. Results For every true dose-toxicity relationship, the CRM selected the MTD that matched the true MTD in a higher proportion of studies compared to the 3 + 3 method. The CRM overestimated the MTD in a higher proportion of simulations compared to the 3 + 3 method. The proportion of studies where the correct MTD was selected varied considerably between skeletons. For some true dose-toxicity relationships, some skeletons identified the true MTD in a higher proportion of scenarios compared to the skeleton that matched the true dose-toxicity relationship. Conclusion Through simulation, the CRM generally outperformed the 3 + 3 method for the clinical and theoretical true dose-toxicity relationships. It was observed that accurate estimates of the true skeleton do not always outperform a generic skeleton, therefore the application of wide confidence intervals may enable a generic skeleton to be used. Further work is needed to determine the optimum skeleton.
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Affiliation(s)
- G D James
- Medical Statistics Consultancy Ltd, London, W4 5XF, UK.
| | - S Symeonides
- Edinburgh Cancer Research Centre, IGMM, University of Edinburgh, Edinburgh, EH4 2XU, UK
| | - J Marshall
- Oncology Biometrics, Oncology R&D, AstraZeneca, Cambridge, UK
| | - J Young
- Aptus Clinical Ltd, Alderley Park, Macclesfield, Cheshire, SK10 4TF, UK
| | - G Clack
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
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Lorintiu O, Young J, Chapuis V, Compere L, Duchemin-Pelletier E, Anselmo S, Ventre E. MUSCLE FUNCTION & HOMEOSTASIS / MOLECULAR THERAPEUTIC APPROACHES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
AIMS COVID-19 represents one of the greatest global healthcare challenges in a generation. Orthopaedic departments within the UK have shifted care to manage trauma in ways that minimize exposure to COVID-19. As the incidence of COVID-19 decreases, we explore the impact and risk factors of COVID-19 on patient outcomes within our department. METHODS We retrospectively included all patients who underwent a trauma or urgent orthopaedic procedure from 23 March to 23 April 2020. Electronic records were reviewed for COVID-19 swab results and mortality, and patients were screened by telephone a minimum 14 days postoperatively for symptoms of COVID-19. RESULTS A total of 214 patients had orthopaedic surgical procedures, with 166 included for analysis. Patients undergoing procedures under general or spinal anaesthesia had a higher risk of contracting perioperative COVID-19 compared to regional/local anaesthesia (p = 0.0058 and p = 0.0007, respectively). In all, 15 patients (9%) had a perioperative diagnosis of COVID-19, 14 of whom had fragility fractures; six died within 30 days of their procedure (40%, 30-day mortality). For proximal femoral fractures, our 30-day mortality was 18.2%, compared to 7% in 2019. CONCLUSION Based on our findings, patients undergoing procedures under regional or local anaesthesia have minimal risk of developing COVID-19 perioperatively. Those with multiple comorbidities and fragility fractures have a higher morbidity and mortality if they contract COVID-19 perioperatively; therefore, protective care pathways could go some way to mitigate the risk. Our 30-day mortality of proximal femoral fractures was 18.2% during the COVID-19 pandemic in comparison to the annual national average of 6.1% in 2018 and the University Hospital Coventry average of 7% for the same period in 2019, as reported in the National Hip Fracture Database. Patients undergoing procedures under general or spinal anaesthesia at the peak of the pandemic had a higher risk of contracting perioperative COVID-19 compared to regional block or local anaesthesia. We question whether young patients undergoing day-case procedures under regional block or local anaesthesia with minimal comorbidities require fourteen days self-isolation; instead, we advocate that compliance with personal protective equipment, a negative COVID-19 swab three days prior to surgery, and screening questionnaire may be sufficient.Cite this article: Bone Joint Open 2020;1-9:520-529.
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Affiliation(s)
- Nicola D Mackay
- Department of Trauma and Orthopaedics, University Hospital Coventry and Warwickshire, UK
| | - Christopher P Wilding
- Department of Trauma and Orthopaedics, University Hospital Coventry and Warwickshire, UK
| | - Clare R Langley
- Department of Trauma and Orthopaedics, University Hospital Coventry and Warwickshire, UK
| | - Jonathan Young
- Department of Trauma and Orthopaedics, University Hospital Coventry and Warwickshire, UK
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Young J, Mdanat F, Dharmasena A, Cannon P, Leatherbarrow B, Hammerbeck-Ward C, Rutherford S, Ataullah S. Combined neurosurgical and orbital intervention for spheno-orbital meningiomas - the Manchester experience. Orbit 2020; 39:251-257. [PMID: 31658848 DOI: 10.1080/01676830.2019.1673782] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
PURPOSE Surgical resection of spheno-orbital meningioma (SOM) is challenging, requiring a multidisciplinary surgical approach. We present our experience of the surgical management of patients with SOM. METHODS A retrospective analysis of patients with SOM who underwent joint neurosurgical and orbital surgical procedures between January 2000 and June 2017. Pre-operative clinical signs, indication for surgery, surgical complications and post-operative outcomes were recorded. RESULTS Twenty-four operations were performed. Mean age was 49.5 years. Ninety-two percent of patients were female. Pre-operatively mean Snellen acuity vision was 6/12; 13 (54%) had an RAPD; 12 (50%) had reduced colour vision; 16 (67%) had a visual field defect. The majority (21 patients, 88%) had proptosis (average 4.5 mm ± 2.8 mm). The indication for surgery was evidence of visual dysfunction in 17 (71%), the remaining 7 (29%) had high risk of visual loss clinically or radiologically. Three-months post operatively, vision was stable in 13 (58%), improved in 6 (21%) and worse in 5 (17%). Average long-term follow-up was 82 months (1-220). Fourteen (58%) maintain improved or stable visual function. Four (17%) had reduced vision due to regrowth of the tumour at an average of 24 months. CONCLUSION SOMs are very challenging to treat surgically. In this cohort the patients were predominantly young females with aggressive disease. Visual function was improved or stabilised in 79% of the patients.
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Affiliation(s)
- J Young
- Oculoplastic Department, Manchester Royal Eye Hospital , Manchester, UK
| | - F Mdanat
- School of Medical Sciences, The University of Manchester , Manchester, UK
| | - A Dharmasena
- Oculoplastic Department, Manchester Royal Eye Hospital , Manchester, UK
| | - P Cannon
- Oculoplastic Department, Manchester Royal Eye Hospital , Manchester, UK
| | - B Leatherbarrow
- Oculoplastic Department, Manchester Royal Eye Hospital , Manchester, UK
| | - C Hammerbeck-Ward
- Neurosurgical Department, Salford Royal Foundation Trust , Salford, UK
| | - S Rutherford
- Neurosurgical Department, Salford Royal Foundation Trust , Salford, UK
| | - S Ataullah
- Oculoplastic Department, Manchester Royal Eye Hospital , Manchester, UK
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Lei D, Pinaya WHL, van Amelsvoort T, Marcelis M, Donohoe G, Mothersill DO, Corvin A, Gill M, Vieira S, Huang X, Lui S, Scarpazza C, Young J, Arango C, Bullmore E, Qiyong G, McGuire P, Mechelli A. Detecting schizophrenia at the level of the individual: relative diagnostic value of whole-brain images, connectome-wide functional connectivity and graph-based metrics. Psychol Med 2020; 50:1852-1861. [PMID: 31391132 PMCID: PMC7477363 DOI: 10.1017/s0033291719001934] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 06/25/2019] [Accepted: 07/11/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Previous studies using resting-state functional neuroimaging have revealed alterations in whole-brain images, connectome-wide functional connectivity and graph-based metrics in groups of patients with schizophrenia relative to groups of healthy controls. However, it is unclear which of these measures best captures the neural correlates of this disorder at the level of the individual patient. METHODS Here we investigated the relative diagnostic value of these measures. A total of 295 patients with schizophrenia and 452 healthy controls were investigated using resting-state functional Magnetic Resonance Imaging at five research centres. Connectome-wide functional networks were constructed by thresholding correlation matrices of 90 brain regions, and their topological properties were analyzed using graph theory-based methods. Single-subject classification was performed using three machine learning (ML) approaches associated with varying degrees of complexity and abstraction, namely logistic regression, support vector machine and deep learning technology. RESULTS Connectome-wide functional connectivity allowed single-subject classification of patients and controls with higher accuracy (average: 81%) than both whole-brain images (average: 53%) and graph-based metrics (average: 69%). Classification based on connectome-wide functional connectivity was driven by a distributed bilateral network including the thalamus and temporal regions. CONCLUSION These results were replicated across the three employed ML approaches. Connectome-wide functional connectivity permits differentiation of patients with schizophrenia from healthy controls at single-subject level with greater accuracy; this pattern of results is consistent with the 'dysconnectivity hypothesis' of schizophrenia, which states that the neural basis of the disorder is best understood in terms of system-level functional connectivity alterations.
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Affiliation(s)
- Du Lei
- Departments of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Chengdu, China
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
| | - Walter H. L. Pinaya
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
- Center of Mathematics, Computation, and Cognition, Universidade Federal do ABC, Santo André, Brazil
| | - Therese van Amelsvoort
- Department of Psychiatry and Neuropsychology, School of Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherland
| | - Machteld Marcelis
- Department of Psychiatry and Neuropsychology, School of Mental Health and Neuroscience, Maastricht University Medical Center, Maastricht, The Netherland
- Mental Health Care Institute Eindhoven (GGzE), Eindhoven, The Netherlands
| | - Gary Donohoe
- School of Psychology & Center for neuroimaging and Cognitive genomics, NUI Galway University, Galway, Ireland
| | - David O. Mothersill
- School of Psychology & Center for neuroimaging and Cognitive genomics, NUI Galway University, Galway, Ireland
| | - Aiden Corvin
- Department of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Michael Gill
- Department of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Sandra Vieira
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
| | - Xiaoqi Huang
- Departments of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Chengdu, China
| | - Su Lui
- Departments of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Chengdu, China
| | - Cristina Scarpazza
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
- Department of General Psychology, University of Padua, Padua, Italy
| | - Jonathan Young
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
- IXICO plc, London, UK
| | - Celso Arango
- Hospital General Universitario Gregorio Marañon. School of Medicine, Universidad Complutense Madrid. IiSGM, CIBERSAM, Madrid, Spain
| | - Edward Bullmore
- Brain Mapping Unit, Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Gong Qiyong
- Departments of Radiology, Huaxi MR Research Center (HMRRC), West China Hospital of Sichuan University, Chengdu, China
- Psychoradiology Research Unit of the Chinese Academy of Medical Sciences (2018RU011), West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Philip McGuire
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
| | - Andrea Mechelli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
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Morgan SE, Young J, Patel AX, Whitaker KJ, Scarpazza C, van Amelsvoort T, Marcelis M, van Os J, Donohoe G, Mothersill D, Corvin A, Arango C, Mechelli A, van den Heuvel M, Kahn RS, McGuire P, Brammer M, Bullmore ET. Functional Magnetic Resonance Imaging Connectivity Accurately Distinguishes Cases With Psychotic Disorders From Healthy Controls, Based on Cortical Features Associated With Brain Network Development. Biol Psychiatry Cogn Neurosci Neuroimaging 2020; 6:1125-1134. [PMID: 32800754 DOI: 10.1016/j.bpsc.2020.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/27/2020] [Accepted: 05/31/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Machine learning (ML) can distinguish cases with psychotic disorder from healthy controls based on magnetic resonance imaging (MRI) data, but it is not yet clear which MRI metrics are the most informative for case-control ML, or how ML algorithms relate to the underlying biology. METHODS We analyzed multimodal MRI data from 2 independent case-control studies of psychotic disorders (cases, n = 65, 28; controls, n = 59, 80) and compared ML accuracy across 5 selected MRI metrics from 3 modalities. Cortical thickness, mean diffusivity, and fractional anisotropy were estimated at each of 308 cortical regions, as well as functional and structural connectivity between each pair of regions. Functional connectivity data were also used to classify nonpsychotic siblings of cases (n = 64) and to distinguish cases from controls in a third independent study (cases, n = 67; controls, n = 81). RESULTS In both principal studies, the most informative metric was functional MRI connectivity: The areas under the receiver operating characteristic curve were 88% and 76%, respectively. The cortical map of diagnostic connectivity features (ML weights) was replicable between studies (r = .27, p < .001); correlated with replicable case-control differences in functional MRI degree centrality and with a prior cortical map of adolescent development of functional connectivity; predicted intermediate probabilities of psychosis in siblings; and was replicated in the third case-control study. CONCLUSIONS ML most accurately distinguished cases from controls by a replicable pattern of functional MRI connectivity features, highlighting abnormal hubness of cortical nodes in an anatomical pattern consistent with the concept of psychosis as a disorder of network development.
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Affiliation(s)
- Sarah E Morgan
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Alan Turing Institute, London, United Kingdom.
| | - Jonathan Young
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; IXICO plc, London, United Kingdom
| | - Ameera X Patel
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - Kirstie J Whitaker
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Alan Turing Institute, London, United Kingdom
| | - Cristina Scarpazza
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Department of General Psychology, University of Padova, Padova, Italy
| | - Thérèse van Amelsvoort
- Department of Psychiatry and Psychology, Maastricht University, Maastricht, The Netherlands
| | - Machteld Marcelis
- Department of Psychiatry and Psychology, Maastricht University, Maastricht, The Netherlands
| | - Jim van Os
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Department of Psychiatry and Psychology, Maastricht University, Maastricht, The Netherlands; Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht, The Netherlands
| | - Gary Donohoe
- School of Psychology, National University of Ireland, Galway, Ireland
| | - David Mothersill
- School of Psychology, National University of Ireland, Galway, Ireland
| | - Aiden Corvin
- Department of Psychiatry, Trinity College, Dublin, Ireland
| | - Celso Arango
- Child and Adolescent Psychiatry Department, Hospital General Universitario Gregorio Marañón, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Andrea Mechelli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | | | - René S Kahn
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Philip McGuire
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Michael Brammer
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Department of Forensic and Development Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Edward T Bullmore
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, United Kingdom
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Bauer D, Young J, Norman K. A Rapid Alternative to Culture Based Mycoplasma Detection. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cambos S, Mohammedi K, Castinetti F, Saie C, Young J, Chanson P, Tabarin A. Persistent cortisol response to desmopressin predicts recurrence of Cushing's disease in patients with post-operative corticotropic insufficiency. Eur J Endocrinol 2020; 182:489-498. [PMID: 32187576 DOI: 10.1530/eje-19-0770] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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] [Received: 09/27/2019] [Accepted: 03/18/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Cushing's disease (CD) may recur despite corticotropic insufficiency (COI) following pituitary surgery. The predictive value of the desmopressin test (DT) for recurrence in this setting remains controversial. We have evaluated whether the disappearance of the response to DT predicts a low probability recurrence in a large cohort of patients with post-operative COI. DESIGN Multicentre retrospective study. METHODS Ninety-five patients with CD (women 82%, age 41 ± 14 years), responding preoperatively to DT and with early post-operative COI (08 00 am cortisol: <138 nmol/L), underwent a DT within 3 months post-surgery. Association between DT findings and the prediction of recurrence was tested using regression and ROC analyses. RESULTS Recurrence occurred in 17/95 patients within 29 to 91 months. The cortisol peak (327, 95% CI (237-417) vs 121 (79-164) nmol/L, P = 0.0001) and absolute increment during DT (208 (136-280) vs 56 (22-90) nmol/L, P = 0.005) were greater in the recurrence vs remission group. Cortisol peak (AUC: 0.786 (0.670-0.902)) and increment (0.793 (0.672-0.914)) yielded a higher prognostic performance for recurrence than did the early post-operative 08 00 am cortisol (0.655 (0.505-0.804)). In the context of COI, cortisol peak >100 nmol/L and increment >30 nmol/L had a high negative predictive value (94, 95% CI (88-100) and 94, (88-100), respectively). Patients with a cortisol peak ≤100 nmol/L (vs >100) or an increment ≤30 nmol/L (vs >30) were less likely to have CD recurrence (odds ratios: 0.12, 95% CI (0.03-0.41) and 0.11 (0.02-0.36), respectively). CONCLUSION The disappearance of the response to the post-operative DT was independently associated with a lower odds of CD recurrence and offers an incremental prognostic value, which may help to stratify patients with COI and refine their follow-up according to the risk of recurrence.
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Affiliation(s)
- S Cambos
- CHU Bordeaux, Hôpital Haut-Lévêque, Service d'Endocrinologie, Diabétologie et Nutrition, Pessac, France
| | - K Mohammedi
- CHU Bordeaux, Hôpital Haut-Lévêque, Service d'Endocrinologie, Diabétologie et Nutrition, Pessac, France
| | - F Castinetti
- Department of Endocrinology, Aix Marseille University, Marseille Medical Genetics, INSERM, and Assistance Publique-Hopitaux de Marseille, French Reference Center for Rare Pituitary Diseases, Marseille, France
| | - C Saie
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris-Saclay, Hôpital de Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Le Kremlin Bicêtre, France
| | - J Young
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris-Saclay, Hôpital de Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Le Kremlin Bicêtre, France
- Université Paris Saclay, Univ Paris-Sud, Faculté de Médecine Paris-Sud, UMR-S1185, Le Kremlin Bicêtre, France
- INSERM 1185, Fac Med Paris Sud, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - P Chanson
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris-Saclay, Hôpital de Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Le Kremlin Bicêtre, France
- Université Paris Saclay, Univ Paris-Sud, Faculté de Médecine Paris-Sud, UMR-S1185, Le Kremlin Bicêtre, France
- INSERM 1185, Fac Med Paris Sud, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - A Tabarin
- CHU Bordeaux, Hôpital Haut-Lévêque, Service d'Endocrinologie, Diabétologie et Nutrition, Pessac, France
- INSERM and University of Bordeaux Neurocentre Magendie, Bordeaux, France
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Kearney RS, Parsons N, Ji C, Warwick J, Brown J, Young J, Costa ML. Platelet rich plasma versus placebo for the management of Achilles tendinopathy: protocol for the UK study of Achilles tendinopathy management (ATM) multi-centre randomised trial. BMJ Open 2020; 10:e034076. [PMID: 32051317 PMCID: PMC7044811 DOI: 10.1136/bmjopen-2019-034076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
INTRODUCTION In the UK, 150 000 people every year experience mid-substance Achilles tendinopathy. Typically patients are offered a range of treatment options such as exercise, electrotherapy, injections and surgery. With large variations in current practice, there is a pressing need to establish which treatments are effective and which are not. This is the protocol for a multi-centre randomised trial of platelet rich plasma (PRP) versus placebo injection for patients with Achilles tendinopathy. METHODS AND ANALYSIS Adult patients with mid-substance Achilles tendinopathy for longer than 3 months will be screened. Randomisation will be on a 1:1 basis, stratified by centre and bilateral presentation. Participants will be allocated to either a single PRP injection or placebo injection. A minimum of 240 patients will be recruited into the study; this number will provide 90% power to detect a difference of 12 points in Victorian Institute of Sport Assessment-Achilles score at 6 months. Quality of life, pain and complications data will be collected at baseline, 2-week, 3-month and 6-month post-randomisation. The differences between treatment groups will be assessed on an intention-to-treat basis. ETHICS, REGISTRATION AND DISSEMINATION This trial was funded by Versus Arthritis and commenced on 1 September 2015 (Versus Arthritis 20831). National Research Ethic Committee approved this study on 30 October 2015 (15/WM/0359). It was registered on the International Standard Randomised Controlled Trial Number (ISRCTN) registry with reference number ISRCTN 13254422 on 28 October 2015. The first site opened to recruitment on 27 April 2016 and the trial was in active recruitment at the point of submitting the protocol paper. The results of this trial will be submitted to a peer-reviewed journal and will inform clinical practice with regard to the treatment of Achilles tendinopathy.
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Affiliation(s)
| | - Nicholas Parsons
- Statistics and Epidemiology Unit, Warwick Medical School, University of Warwick, Coventry, UK
| | - Chen Ji
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK
| | - Jane Warwick
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK
| | - Jaclyn Brown
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK
| | - Jonathan Young
- Trauma and Orthopaedic Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Matthew L Costa
- Oxford Trauma, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Gifford G, Crossley N, Kempton MJ, Morgan S, Dazzan P, Young J, McGuire P. Resting state fMRI based multilayer network configuration in patients with schizophrenia. Neuroimage Clin 2020; 25:102169. [PMID: 32032819 PMCID: PMC7005505 DOI: 10.1016/j.nicl.2020.102169] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 12/18/2019] [Accepted: 01/10/2020] [Indexed: 02/06/2023]
Abstract
Novel methods for measuring large-scale dynamic brain organisation are needed to provide new biomarkers of schizophrenia. Using a method for modelling dynamic modular organisation (Mucha et al., 2010), evidence suggests higher 'flexibility' (switching between multilayer network communities) to be a feature of schizophrenia (Braun et al., 2016). The current study compared flexibility between 55 patients with schizophrenia and 72 controls (the COBRE Dataset). In addition, novel methods of 'between resting state network synchronisation' (BRSNS) and the probability of transition from one community to another were used to further describe group differences in dynamic community structure. There was significantly higher schizophrenia group flexibility scores in cerebellar (F (1124) = 9.33, p (FDR) = 0.017), subcortical (F (1124) = 13.14, p (FDR) = 0.005), and fronto-parietal task control (F (1124) = 7.19, p (FDR) = 0.033) resting state networks (RSNs), as well as in the left thalamus (MNI XYZ: -2, -13, 12; F(1, 124) = 17.1, p (FDR) < 0.001) and the right crus I (MNI XYZ: 35, -67, -34; F (1, 124) = 19.65, p (FDR) < 0.001). Flexibility in the left thalamus reflected transitions between communities covering default mode and sensory-somatomotor RSNs. BRSNS scores suggested altered dynamic inter-RSN modular configuration in schizophrenia. This study suggests less stable community structure in a schizophrenia group at an RSN and node level and provides novel methods of exploring dynamic community structure. Mediation of group differences by mean time window correlation did however suggest flexibility to be no better as a schizophrenia biomarker than simpler measures and a range of methodological choices affected results.
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Affiliation(s)
- George Gifford
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK.
| | - Nicolas Crossley
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK; Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago 8330077, Chile
| | - Matthew J Kempton
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK
| | - Sarah Morgan
- Department of Psychiatry, University of Cambridge, Cambridge CB2 0SZ, UK; The Alan Turing Institute, London NW1 2DB, UK
| | - Paola Dazzan
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK
| | - Jonathan Young
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK
| | - Philip McGuire
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK
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