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Buckley J, Schmidt RJ, Ostrow D, Maglinte D, Bootwalla M, Ruble D, Govindarajan A, Ji J, Kovach AE, Orgel E, Raca G, Navid F, Mascarenhas L, Pawel B, Robison N, Gai X, Biegel JA. An Exome Capture-Based RNA-Sequencing Assay for Genome-Wide Identification and Prioritization of Clinically Important Fusions in Pediatric Tumors. J Mol Diagn 2024; 26:127-139. [PMID: 38008288 DOI: 10.1016/j.jmoldx.2023.11.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 08/14/2023] [Accepted: 11/07/2023] [Indexed: 11/28/2023] Open
Abstract
This study reports the development of an exome capture-based RNA-sequencing assay to detect recurring and novel fusions in hematologic, solid, and central nervous system tumors. The assay used Twist Comprehensive Exome capture with either fresh or formalin-fixed samples and a bioinformatic platform that provides fusion detection, prioritization, and downstream curation. A minimum of 50 million uniquely mapped reads, a consensus read alignment/fusion calling approach using four callers (Arriba, FusionCatcher, STAR-Fusion, and Dragen), and custom software were used to integrate, annotate, and rank the candidate fusion calls. In an evaluation of 50 samples, the number of calls varied substantially by caller, from a mean of 24.8 with STAR-Fusion to 259.6 with FusionCatcher; only 1.1% of calls were made by all four callers. Therefore a filtering and ranking algorithm was developed based on multiple criteria, including number of supporting reads, calling consensus, genes involved, and cross-reference against databases of known cancer-associated or likely false-positive fusions. This approach was highly effective in pinpointing known clinically relevant fusions, ranking them first in 47 of 50 samples (94%). Detection of pathogenic gene fusions in three diagnostically challenging cases highlights the importance of a genome-wide and nontargeted method for fusion detection in pediatric cancer.
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Affiliation(s)
- Jonathan Buckley
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Ryan J Schmidt
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Dejerianne Ostrow
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Dennis Maglinte
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Moiz Bootwalla
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - David Ruble
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Ananthanarayanan Govindarajan
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Jianling Ji
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Alexandra E Kovach
- Keck School of Medicine of University of Southern California, Los Angeles, California; Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Etan Orgel
- Keck School of Medicine of University of Southern California, Los Angeles, California; Division of Hematology and Oncology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California
| | - Gordana Raca
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Fariba Navid
- Keck School of Medicine of University of Southern California, Los Angeles, California; Division of Hematology and Oncology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California
| | - Leo Mascarenhas
- Keck School of Medicine of University of Southern California, Los Angeles, California; Division of Hematology and Oncology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California
| | - Bruce Pawel
- Keck School of Medicine of University of Southern California, Los Angeles, California; Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Nathan Robison
- Division of Hematology and Oncology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, California
| | - Xiaowu Gai
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Jaclyn A Biegel
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Keck School of Medicine of University of Southern California, Los Angeles, California.
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2
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Kremer T, Murray N, Buckley J, Rowan NJ. Use of real-time immersive digital training and educational technologies to improve patient safety during the processing of reusable medical devices: Quo Vadis? Sci Total Environ 2023; 900:165673. [PMID: 37481083 DOI: 10.1016/j.scitotenv.2023.165673] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/24/2023]
Abstract
Hospital acquired infections stemming from contaminated reusable medical devices are of increasing concern. This issue is exaggerated with the introduction of complex medical devices like endoscopes and robotic instrumentation. Although medical device manufacturers validate their cleaning instructions for use, evidence in the literature demonstrates that effective device processing is not being performed consistently within sterile processing departments in clinical settings. The result is increased risks to patient safety. As a solution to this problem, focused one-on-one training increases compliance to the medical device manufacturer's processing instruction. However, often this is not a practical solution for the volume of healthcare staff responsible for device processing activities. This constitutes the first paper to address the blended use of educational and digital technologies to address these challenges and as a result inform safety and sustainability for the medical device sector. Cognitive learning theory is an evidence-based framework for learning. It supports the use of immersive educational experiences using emerging extended reality technologies (e.g., virtual or augmented reality) to increase learning comprehension. The delivery of educational content via these technologies provides an innovative option for repeatable leaning and training outcomes. The motivation is to decrease patient risk of contaminated reusable medical devices. The proposed approach while primary motivated by safety can also enhance sustainability and efficiency enabled by artificial intelligence and robotic instrumentation.
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Affiliation(s)
- T Kremer
- Microbiological Quality & Sterility Assurance, Johnson & Johnson, 1000 Route 202 South Raritan, NJ 08869, USA; Centre for Sustainable Disinfection and Sterilization, Bioscience Research Institute, Technological University of the Shannon, Midlands Midwest, Athlone Campus, Ireland.
| | - N Murray
- Faculty of Engineering and Informatics, Technological University of the Shannon, Midlands West, Athlone Campus, Ireland
| | - J Buckley
- Faculty of Engineering and Informatics, Technological University of the Shannon, Midlands West, Athlone Campus, Ireland
| | - N J Rowan
- Centre for Sustainable Disinfection and Sterilization, Bioscience Research Institute, Technological University of the Shannon, Midlands Midwest, Athlone Campus, Ireland; Department of Nursing and Healthcare, Technological University of the Shannon, Midlands Midwest, Athlone Campus, Ireland
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3
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McCulloch MI, Argent AC, Morrow B, Nourse P, Coetzee A, Du Buisson C, Reddy D, Buckley J, Sinclair PJ, Gajjar P, Semanska L, Eddy A, Feehally J, Cano F, Warady BA. Lessons learned from regional training of paediatric nephrology fellows in Africa. Pediatr Nephrol 2023; 38:3757-3768. [PMID: 37278919 PMCID: PMC10243235 DOI: 10.1007/s00467-023-06022-9] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/29/2023] [Accepted: 05/01/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND Access to care for children with kidney disease is limited in less well-resourced regions of the world and paediatric nephrology (PN) workforce development with good practical skills is critical. METHODS Retrospective review of a PN training program and trainee feedback from 1999 to 2021, based at Red Cross War Memorial Children's Hospital (RCWMCH), University of Cape Town. RESULTS A regionally appropriate 1-2-year training program enrolled 38 fellows with an initial 100% return rate to their country of origin. Program funding included fellowships from the International Pediatric Nephrology Association (IPNA), International Society of Nephrology (ISN), International Society of Peritoneal Dialysis (ISPD), and the African Paediatric Fellowship Program (APFP). Fellows were trained on both in- and out-patient management of infants and children with kidney disorders. "Hands-on skills" training included examination, diagnosis and management skills, practical insertion of peritoneal dialysis catheters for management of acute kidney injury and kidney biopsies. Of 16 trainees who completed > 1 year of training, 14 (88%) successfully completed subspecialty exams and 9 (56%) completed a master's degree with a research component. PN fellows reported that their training was appropriate and enabled them to make a difference in their respective communities. CONCLUSIONS This training program has successfully equipped African physicians with the requisite knowledge and skills to provide PN services in resource-constrained areas for children with kidney disease. The provision of funding from multiple organizations committed to paediatric kidney disease has contributed to the success of the program, along with the fellows' commitment to build PN healthcare capacity in Africa. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Mignon I McCulloch
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa.
| | - Andrew C Argent
- Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
| | - Brenda Morrow
- Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
| | - Peter Nourse
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Ashton Coetzee
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Christel Du Buisson
- Department of Paediatric Nephrology, Tygerberg Hospital Children's Hospital, University of Stellenbosch, Stellenbosch, South Africa
| | - Deveshni Reddy
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Jonathan Buckley
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Paul J Sinclair
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Priya Gajjar
- Department of Paediatric Nephrology, Red Cross Children's Hospital, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Lucie Semanska
- International Pediatric Nephrology Association (IPNA) Office Administration, IPNA Programs Coordinator, Kansa City, MO, USA
| | - Allison Eddy
- Professor Emeritus (Pediatrics), The University of British Columbia|Musqueam Traditional Territory, Investigator, BC Children's Hospital Research Institute, Scientific & Research Staff, BC Children's Hospital, Vancouver, Canada
| | - John Feehally
- Emeritus Consultant Nephrologist, University Hospitals of Leicester, Honorary Visiting Fellow, Leicester, UK
| | - Francisco Cano
- Pediatric Nephrologist, Luis Calvo Mackenna Children's Hospital, University of Chile, Santiago, Chile
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4
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Kaneva K, Schurr TG, Tatarinova TV, Buckley J, Merkurjev D, Triska P, Liu X, Done J, Maglinte DT, Deapen D, Hwang A, Schiffman JD, Triche TJ, Biegel JA, Gai X. Mitochondrial DNA haplogroup, genetic ancestry, and susceptibility to Ewing sarcoma. Mitochondrion 2022; 67:6-14. [PMID: 36115539 PMCID: PMC9997094 DOI: 10.1016/j.mito.2022.09.002] [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: 04/12/2022] [Revised: 08/30/2022] [Accepted: 09/09/2022] [Indexed: 01/11/2023]
Abstract
Based on current studies, the incidence of Ewing sarcoma (ES) varies significantly by race and ethnicity, with the disease being most common in patients of European ancestry. However, race/ethnicity has generally been self-reported rather than formally evaluated at a population level using DNA evidence. Additionally, mitochondrial dysfunction is a hallmark of ES, yet there have been no reported studies of mitochondrial genetics in ES. Thus, we evaluated both the mitochondrial and nuclear ancestries of 420 pediatric ES patients in the United States using whole-genome sequencing. We found that the mitochondrial DNA (mtDNA) genomes of only six (1.4 %) patients belonged to African L haplogroups, while those of 90 % of the patients belonged to macrohaplogroup R, which includes haplogroup H, the most common maternal lineage in Europe. Compared to the general US population, European haplogroups were significantly enriched in ES patients (p < 2.2e-16) and the African haplogroups are significantly impoverished (p < 4.6e-16). Using the ancestry informative markers defined in a National Genographic study, the vast majority of patients exhibited significant nuclear ancestry originating from the Mediterranean, Northern Europe, and Southwest Asia, including all six patients with African L mtDNAs. Very few had primarily African nuclear ancestry. This is the first genomic epidemiology study to simultaneously interrogate the mitochondrial and nuclear ancestries of ES patients. While supporting previous findings of enriched European ancestry in ES patients, these results also suggest alternative hypotheses for the significant contribution of mitochondrial ancestry in ES patients, as well as the protective role of African ancestry.
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Affiliation(s)
- Kristiyana Kaneva
- Division of Hematology, Oncology, and Blood and Marrow Transplant Program, Children's Center for Cancer and Blood Diseases, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Theodore G Schurr
- Department of Anthropology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Jonathan Buckley
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA; Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Daria Merkurjev
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA; Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Petr Triska
- Department of Pediatric Hematology and Oncology, Charles University, Prague, Czech Republic
| | - Xiyu Liu
- Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - James Done
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Dennis T Maglinte
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Dennis Deapen
- Cancer Surveillance Program, Department of Preventive Medicine, University of Southern California, Los Angeles, CA, USA
| | - Amie Hwang
- Cancer Surveillance Program, Department of Preventive Medicine, University of Southern California, Los Angeles, CA, USA
| | - Joshua D Schiffman
- Department of Pediatrics and Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA; PEEL Therapeutics, Inc., Salt Lake City, UT, USA
| | - Timothy J Triche
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA; Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jaclyn A Biegel
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA; Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Xiaowu Gai
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA; Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
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5
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Morrison G, Buckley J, Ostrow D, Varghese B, Cen SY, Werbin J, Ericson N, Cunha A, Lu YT, George T, Smith J, Quinn D, Duddalwar V, Triche T, Goldkorn A. Non-Invasive Profiling of Advanced Prostate Cancer via Multi-Parametric Liquid Biopsy and Radiomic Analysis. Int J Mol Sci 2022; 23:2571. [PMID: 35269713 PMCID: PMC8910093 DOI: 10.3390/ijms23052571] [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] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 11/16/2022] Open
Abstract
Integrating liquid biopsies of circulating tumor cells (CTCs) and cell-free DNA (cfDNA) with other minimally invasive measures may yield more comprehensive disease profiles. We evaluated the feasibility of concurrent cellular and molecular analysis of CTCs and cfDNA combined with radiomic analysis of CT scans from patients with metastatic castration-resistant PC (mCRPC). CTCs from 22 patients were enumerated, stained for PC-relevant markers, and clustered based on morphometric and immunofluorescent features using machine learning. DNA from single CTCs, matched cfDNA, and buffy coats was sequenced using a targeted amplicon cancer hotspot panel. Radiomic analysis was performed on bone metastases identified on CT scans from the same patients. CTCs were detected in 77% of patients and clustered reproducibly. cfDNA sequencing had high sensitivity (98.8%) for germline variants compared to WBC. Shared and unique somatic variants in PC-related genes were detected in cfDNA in 45% of patients (MAF > 0.1%) and in CTCs in 92% of patients (MAF > 10%). Radiomic analysis identified a signature that strongly correlated with CTC count and plasma cfDNA level. Integration of cellular, molecular, and radiomic data in a multi-parametric approach is feasible, yielding complementary profiles that may enable more comprehensive non-invasive disease modeling and prediction.
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Affiliation(s)
- Gareth Morrison
- Division of Medical Oncology, Department of Medicine and Department of Biochemistry & Molecular Medicine, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; (G.M.); (A.C.); (Y.-T.L.); (D.Q.)
| | - Jonathan Buckley
- Department of Population and Public Health Sciences, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA;
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (T.T.)
| | - Dejerianne Ostrow
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (T.T.)
| | - Bino Varghese
- Department of Radiology, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA;
| | - Steven Y. Cen
- Departments of Radiology and Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA;
| | - Jeffrey Werbin
- RareCyte, Inc., Seattle, WA 98121, USA; (J.W.); (N.E.); (T.G.)
| | - Nolan Ericson
- RareCyte, Inc., Seattle, WA 98121, USA; (J.W.); (N.E.); (T.G.)
| | - Alexander Cunha
- Division of Medical Oncology, Department of Medicine and Department of Biochemistry & Molecular Medicine, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; (G.M.); (A.C.); (Y.-T.L.); (D.Q.)
| | - Yi-Tsung Lu
- Division of Medical Oncology, Department of Medicine and Department of Biochemistry & Molecular Medicine, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; (G.M.); (A.C.); (Y.-T.L.); (D.Q.)
| | - Thaddeus George
- RareCyte, Inc., Seattle, WA 98121, USA; (J.W.); (N.E.); (T.G.)
| | - Jeffrey Smith
- Clinical Sequencing Division, Thermo Fisher Scientific, San Francisco, CA 94080, USA;
| | - David Quinn
- Division of Medical Oncology, Department of Medicine and Department of Biochemistry & Molecular Medicine, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; (G.M.); (A.C.); (Y.-T.L.); (D.Q.)
| | - Vinay Duddalwar
- Departments of Radiology and Urology, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA;
| | - Timothy Triche
- Center for Personalized Medicine, Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, CA 90027, USA; (D.O.); (T.T.)
| | - Amir Goldkorn
- Division of Medical Oncology, Department of Medicine and Department of Biochemistry & Molecular Medicine, Keck School of Medicine and Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90089, USA; (G.M.); (A.C.); (Y.-T.L.); (D.Q.)
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6
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Blake H, Buckley J, Coates A, D’Unienville N, Hill A, Nelson M. Polyphenol consumption and endurance exercise performance: A systematic review and meta-analysis of randomised controlled trials. J Sci Med Sport 2021. [DOI: 10.1016/j.jsams.2021.09.109] [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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7
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Windham AK, Whitted M, Brimhall B, Buckley J, Nichols G, Weddell B, Thomas D, Leung B. Adherence to Choosing Wisely Campaign Guidelines at Three Health Systems. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.254] [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: 11/12/2022] Open
Abstract
Abstract
Introduction/Objective
With rising healthcare costs in the United States, there has been a push for lab stewardship to improve the quality of patient care while reducing costs. To optimize the use of clinical laboratory testing, the ASCP working with other medical specialty organizations, developed the Choosing Wisely Campaign to promulgate evidence-based guidelines to optimize clinical laboratory testing.
Methods/Case Report
We examined adherence to three Choosing Wisely guidelines over a four-year period (2017- 2020), through queries of internal cost accounting databases to return aggregate volumes as well as variable and total costs at three large academic health systems. We measured concurrent orders for: 1) erythrocyte sedimentation rate (ESR) with C-reactive protein (CRP), 2) serum/plasma amylase with lipase, and 3) free thyroxine (FT4) and/or total triiodothyronine (TT3) with thyroid stimulating hormone (TSH) when the TSH is within the reference range (using an frequency estimate of 85% based on other studies). We also examined another guideline for concurrent orders for serum aldolase with creatine kinase (CK). We also quantified aggregate variable costs for the non-recommended test in each Choosing Wisely guideline (amylase, ESR, FT4 and/or TT3), and for serum aldolase when ordered with CK.
Results (if a Case Study enter NA)
Over the four-year period, there were 322,853 unnecessary tests based on these four guidelines (120,587 ESR and CRP, 30,444 amylase and lipase, 164,818 FT4 and/or TT3 with TSH, and 7,004 aldolase). Overall, unnecessary testing decreased between 2017 and 2020 for amylase with lipase, remained essentially unchanged for aldolase, and increased for the other two test guideline scenarios. The largest changes were concurrent orders for amylase and lipase at one health system (38% decrease), and orders for TT3 with a normal TSH result at another health system (324% increase). The four-year variable cost of these unnecessary tests was $1,215,309 ($303,827 mean annual cost), resulting in potential annual variable cost savings of $101,276 for each health system for the four guidelines we examined. Variable costs for unnecessary testing increased by 16.5% ($45,571) over the four-year period.
Conclusion
Guideline-based unnecessary testing remains as a target to improve laboratory diagnostic testing. There is potential to realize significant achievable cost savings if guidelines are implemented and maintained.
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Affiliation(s)
- A K Windham
- Department of Pathology & Laboratory Medicine, University of Texas Health, San Antonio and University Health System, San Antonio, San Antonio, Texas, UNITED STATES
| | - M Whitted
- Department of Pathology & Laboratory Medicine, University of Texas Health, San Antonio and University Health System, San Antonio, San Antonio, Texas, UNITED STATES
| | - B Brimhall
- Department of Pathology & Laboratory Medicine, University of Texas Health, San Antonio and University Health System, San Antonio, San Antonio, Texas, UNITED STATES
| | - J Buckley
- Department of Hospital Decision Support, University of Texas Southwestern, Dallas, Texas, UNITED STATES
| | - G Nichols
- Department of Hospital Decision Support, University of Texas Southwestern, Dallas, Texas, UNITED STATES
| | - B Weddell
- Department of Decision Support Analysis, University of Texas Medical Branch, Galveston, Texas, UNITED STATES
| | - D Thomas
- Department of Decision Support Analysis, University of Texas Medical Branch, Galveston, Texas, UNITED STATES
| | - B Leung
- Department of Decision Support Analysis, University of Texas Medical Branch, Galveston, Texas, UNITED STATES
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8
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Chan KY, Keogh S, Aucharaz N, Buckley J, Merrigan A, Tormey S. 495 Audit on Blood Ordering Requests in Mastectomies: The Need for a Routine Group and Hold. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.058] [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
A group and hold (G&H) forms part of the pretransfusion compatibility testing and is commonly requested in anticipation of a possible blood transfusion. Requests made in the context of elective procedures with a low transfusion probability, such as a mastectomy, are associated with added financial burden and increases workload in a healthcare system. This audit aims to analyse the cost-benefit associated with the routine request for a preoperative G&H in patients undergoing mastectomies.
Method
A total of 100 patients undergoing mastectomies from the period of September 2019 to October 2020 were included in the audit. Data regarding blood order requests, units of blood transfused, perioperative haemoglobin and the type of mastectomy (right, left or bilateral) were collected.
Results
All patients had a routine G&H as part of their preoperative assessment. The average age in this cohort was 60.3. Right-sided mastectomy was the commonest procedure in this cohort (N = 52). The average preoperative haemoglobin was 13.0g/dL. 2/100 patients received post-operative blood transfusions. The transfusion probability in this cohort was 2%. Only 15% of the cohort had a post-operative haemoglobin level checked. The average drop in haemoglobin in this cohort was 2.3g/dL.
Conclusions
This audit demonstrates the low prevalence of blood transfusions in patients undergoing mastectomies, consistent with current literature. The projected cost savings associated with selective requests for G&H are significant. However, the implementation of a safe and targeted blood ordering approach in patients with high bleeding risks will require a validated stratification system.
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Affiliation(s)
- K Y Chan
- Department of Breast Surgery, University Hospital Limerick, Limerick, Ireland
| | - S Keogh
- Department of Breast Surgery, University Hospital Limerick, Limerick, Ireland
| | - N Aucharaz
- Department of Breast Surgery, University Hospital Limerick, Limerick, Ireland
| | - J Buckley
- Department of Breast Surgery, University Hospital Limerick, Limerick, Ireland
| | - A Merrigan
- Department of Breast Surgery, University Hospital Limerick, Limerick, Ireland
| | - S Tormey
- Department of Breast Surgery, University Hospital Limerick, Limerick, Ireland
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Uggenti C, Lepelley A, Depp M, Badrock AP, Rodero MP, El-Daher MT, Rice GI, Dhir S, Wheeler AP, Dhir A, Albawardi W, Frémond ML, Seabra L, Doig J, Blair N, Martin-Niclos MJ, Della Mina E, Rubio-Roldán A, García-Pérez JL, Sproul D, Rehwinkel J, Hertzog J, Boland-Auge A, Olaso R, Deleuze JF, Baruteau J, Brochard K, Buckley J, Cavallera V, Cereda C, De Waele LMH, Dobbie A, Doummar D, Elmslie F, Koch-Hogrebe M, Kumar R, Lamb K, Livingston JH, Majumdar A, Lorenço CM, Orcesi S, Peudenier S, Rostasy K, Salmon CA, Scott C, Tonduti D, Touati G, Valente M, van der Linden H, Van Esch H, Vermelle M, Webb K, Jackson AP, Reijns MAM, Gilbert N, Crow YJ. cGAS-mediated induction of type I interferon due to inborn errors of histone pre-mRNA processing. Nat Genet 2020; 52:1364-1372. [PMID: 33230297 DOI: 10.1038/s41588-020-00737-3] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [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: 07/03/2020] [Accepted: 10/09/2020] [Indexed: 12/25/2022]
Abstract
Inappropriate stimulation or defective negative regulation of the type I interferon response can lead to autoinflammation. In genetically uncharacterized cases of the type I interferonopathy Aicardi-Goutières syndrome, we identified biallelic mutations in LSM11 and RNU7-1, which encode components of the replication-dependent histone pre-mRNA-processing complex. Mutations were associated with the misprocessing of canonical histone transcripts and a disturbance of linker histone stoichiometry. Additionally, we observed an altered distribution of nuclear cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS) and enhanced interferon signaling mediated by the cGAS-stimulator of interferon genes (STING) pathway in patient-derived fibroblasts. Finally, we established that chromatin without linker histone stimulates cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) production in vitro more efficiently. We conclude that nuclear histones, as key constituents of chromatin, are essential in suppressing the immunogenicity of self-DNA.
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Affiliation(s)
- Carolina Uggenti
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Alice Lepelley
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France
| | - Marine Depp
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Andrew P Badrock
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Mathieu P Rodero
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France
| | - Marie-Thérèse El-Daher
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Gillian I Rice
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Somdutta Dhir
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Ann P Wheeler
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Ashish Dhir
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Waad Albawardi
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Marie-Louise Frémond
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France
| | - Luis Seabra
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France
| | - Jennifer Doig
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Natalie Blair
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Maria José Martin-Niclos
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France
| | - Erika Della Mina
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France
| | - Alejandro Rubio-Roldán
- Centre for Genomics and Oncological Research (GENyO), Pfizer-University of Granada-Andalusian Regional Government, Parque Tecnico de la Ciencia de Salud, Granada, Spain
| | - Jose L García-Pérez
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
- Centre for Genomics and Oncological Research (GENyO), Pfizer-University of Granada-Andalusian Regional Government, Parque Tecnico de la Ciencia de Salud, Granada, Spain
| | - Duncan Sproul
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Jan Rehwinkel
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Jonny Hertzog
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Anne Boland-Auge
- Université Paris-Saclay, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre National de Recherche en Génomique Humaine, Évry, France
| | - Robert Olaso
- Université Paris-Saclay, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre National de Recherche en Génomique Humaine, Évry, France
| | - Jean-François Deleuze
- Université Paris-Saclay, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre National de Recherche en Génomique Humaine, Évry, France
| | - Julien Baruteau
- University College London Great Ormond Street Institute of Child Health, London, UK
| | - Karine Brochard
- Service de Médecine Interne Néphrologie Pédiatrique, Hôpital des Enfants, Toulouse, France
| | - Jonathan Buckley
- Department of Paediatric Nephrology, University of Cape Town, Red Cross War Memorial Children's Hospital, Cape Town, South Africa
| | - Vanessa Cavallera
- Child Neurology and Psychiatry Unit, Istituto di Ricovero e Cura a Carattere Scientifico, Mondino Foundation, Pavia, Italy
| | - Cristina Cereda
- Genomic and Post-Genomic Center, Istituto di Ricovero e Cura a Carattere Scientifico, Mondino Foundation, Pavia, Italy
| | | | - Angus Dobbie
- Yorkshire Clinical Genetics Service, Chapel Allerton Hospital, Leeds, UK
| | - Diane Doummar
- Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Département de Neuropédiatrie, Centre de Référence de Neurogénétique et Mouvements Anormaux de l'Enfant, Hôpital Armand Trousseau, Paris, France
| | - Frances Elmslie
- South West Thames Regional Genetics Service, St George's, University of London, London, UK
| | - Margarete Koch-Hogrebe
- Department of Paediatric Neurology, Children's Hospital Datteln, Witten/Herdecke University, Datteln, Germany
| | - Ram Kumar
- Department of Paediatric Neurology, Alder Hey Children's National Health Service Foundation Trust, Liverpool, UK
| | - Kate Lamb
- Department of Paediatrics, Gloucestershire Royal Hospital, Gloucester, UK
| | - John H Livingston
- Department of Paediatric Neurology, Leeds Teaching Hospitals National Health Service Trust, Leeds, UK
| | - Anirban Majumdar
- Department of Paediatric Neurology, Bristol Children's Hospital, Bristol, UK
| | - Charles Marques Lorenço
- Faculdade de Medicina - Centro Universitário Estácio de Ribeirão Preto, Ribeirão Preto, Brazil
| | - Simona Orcesi
- Child Neurology and Psychiatry Unit, Istituto di Ricovero e Cura a Carattere Scientifico, Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| | - Sylviane Peudenier
- Centre de Référence des Déficiences Intellectuelles de Causes Rares et Polyhandicap, Centre Hospitalier Régional Universitaire de Brest, Brest, France
| | - Kevin Rostasy
- Department of Paediatric Neurology, Children's Hospital Datteln, Witten/Herdecke University, Datteln, Germany
| | - Caroline A Salmon
- Department of Paediatrics, Royal Surrey County Hospital, Guildford, UK
| | - Christiaan Scott
- University of Cape Town, Red Cross War Memorial Children's Hospital, Cape Town, South Africa
| | - Davide Tonduti
- Center for diagnosis and treatment of Leukodystrophies, Pediatric Neurology Unit, V. Buzzi Children's Hospital, Milano, Italy
| | - Guy Touati
- Reference Center for Inborn Errors of Metabolism-Department of Pediatrics, Hôpital des Enfants-Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Marialuisa Valente
- Genomic and Post-Genomic Center, Istituto di Ricovero e Cura a Carattere Scientifico, Mondino Foundation, Pavia, Italy
| | - Hélio van der Linden
- Department of Paediatric Neurology, Neurological Institute of Goiânia, Goiânia, Brazil
| | - Hilde Van Esch
- Center for Human Genetics, University Hospitals Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Marie Vermelle
- Department of Paediatrics, Centre Hospitalier de Dunkerque, Dunkerque, France
| | - Kate Webb
- University of Cape Town, Red Cross War Memorial Children's Hospital, Cape Town, South Africa
| | - Andrew P Jackson
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Martin A M Reijns
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Nick Gilbert
- Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Yanick J Crow
- Centre for Genomic and Experimental Medicine, Medical Research Council Institute of Genetics and Molecular Medicine, The University of Edinburgh, Edinburgh, UK.
- University of Paris, Imagine Institute, Laboratory of Neurogenetics and Neuroinflammation, Paris, France.
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Morrison GJ, Buckley J, Ostrow DG, Varghese B, Ericson N, Cen S, Cunha A, Lu YT, George T, Smith J, Quinn D, Duddalwar V, Triche T, Goldkorn A. Abstract 5379: Non-invasive profiling of advanced prostate cancer via multi-parametric liquid biopsy and radiomics. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5379] [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: 11/16/2022]
Abstract
Abstract
Introduction: Biomarkers of treatment response in advanced prostate cancer (PC) are urgently needed. Liquid biopsy profiling and radiomic imaging enable non-invasive, repeatable tumor profiling, and combining these modalities could yield powerful new predictive tools. We tested the feasibility of concurrent, multi-parametric molecular analysis of circulating tumor cells (CTCs) and matched plasma cell-free DNA (cfDNA), combined with radiomic analysis of CT scans from the same patients.
Methods: Under IRB-approved informed consent, blood was collected from 23 patients with metastatic castrate resistant PC (mCRPC). CTCs were enumerated using the RareCyte and CellSearch platforms, and individual single CTCs and white blood cells (WBCs) were retrieved using RareCyte's integrated robotic micropipette. DNA was extracted from single cells (scDNA), as well as from matched cfDNA and buffy coats (bcDNA), then sequenced using Ampliseq HD Pan-cancer panel. Concurrent radiomic analysis was performed on bone metastatic lesions identified on CT scans from the same patients, and manually segmented regions of interest were queried for a variety of texture metrics.
Results: Of 19 patients with both CellSearch and RareCyte enumeration, CTCs were detected in 12 by CellSearch (63%; median: 3/7.5 mL; range 1-343/ 7.5 mL) and in 14 by RareCyte (74%; median: 1/7.5 mL; range 1-363/7.5 mL). Using matched bcDNA as a gold standard, sensitivity and positive predictive value of germline SNP detection were 74% and 93% for scDNA, and 98% and 99% for cfDNA. A total of 48 and 18 somatic alterations were identified across the cohort in CTCs and cfDNA, respectively, including mutations in AR, TP53, CCND3, FGFR1, ALK, and ROS1. Of 14 patients whose single CTCs were recovered by RareCyte, 12 (86%) had detectable somatic mutations in scDNA, and 7 (50%) had detectable somatic mutations in matched cfDNA. While some mutations were concordant between matched scDNA and cfDNA, most were distinct. Radiomic entropy in CT scans was associated with CellSearch CTC-counts (AUC of 0.74) using the FDA-cleared prognostic threshold of <5 vs. ≥5 CTCs/7.5ml.
Conclusion: We successfully piloted an integrated, multi-parametric analysis of matched single CTCs, WBCs, plasma cfDNA, and buffy coats, along with matched radiomic analysis of CT scans in patients with mCRPC. Germline variants were detected more readily in cfDNA, whereas somatic mutations in commonly altered genes were detected more frequently in CTCs. CellSearch CTC count, an FDA cleared prognostic biomarker, correlated with radiomic entropy, the first such association to our knowledge between liquid biopsy and radiographic readouts. The results demonstrate the feasibility of this approach and its potential to generate comprehensive molecular data and new biomarker profiles. Prospective validation in a large PC cohort is underway.
Citation Format: Gareth J. Morrison, Jonathan Buckley, D. Gigi Ostrow, Bino Varghese, Nolan Ericson, Steven Cen, Alexander Cunha, Yi-Tsung Lu, Tad George, Jeffrey Smith, David Quinn, Vinay Duddalwar, Timothy Triche, Amir Goldkorn. Non-invasive profiling of advanced prostate cancer via multi-parametric liquid biopsy and radiomics [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5379.
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Buckley J, Wible B. 3:54 PM Abstract No. 261 Surviving pulmonary embolism: in-hospital outcomes of pulmonary embolism treated with mechanical thrombectomy versus systemic anticoagulation. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.308] [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: 11/30/2022] Open
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Wible B, Buckley J. 3:27 PM Abstract No. 178 Initial results from mid-term follow-up of the ClotTriever Mechanical Thrombectomy System (CLOUT) Registry. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.215] [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: 11/30/2022] Open
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Francis E, Hogentogler R, Hoke A, Buckley J, Hwang G, Lehman E, Kraschnewski JL. The Healthy Champions program in Pennsylvania schools: Assessment, awareness, and improvement of school wellness. Prev Med Rep 2020; 16:101018. [PMID: 31890473 PMCID: PMC6931235 DOI: 10.1016/j.pmedr.2019.101018] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/15/2019] [Accepted: 11/08/2019] [Indexed: 11/16/2022] Open
Abstract
Schools are important environments for promotion of healthy behaviors to reduce childhood obesity; however, many barriers prevent schools from sustaining wellness programs. The goal of the Healthy Champions program was to assist schools with identifying areas for improvement through a nutrition and activity-focused assessment, and delivery of a customized score report and welcome kit with materials to promote healthful behavior change. In this study, we aimed to describe participation and assessment results for this program across a five-year period. Enrollment in the Healthy Champions program was open to private and public K-12 schools across Pennsylvania beginning in 2013. School staff completed an assessment that scored aspects of the wellness environment and was used to enroll schools in the program. Schools were awarded star status (0–5) based upon responses and provided a tailored response to improve ratings, and with re-enrollment, became a simple way for schools to track progress. From 2013 to 2018, 592 schools enrolled for at least one year, representing 58 out of 67 counties (87%) in Pennsylvania. Mean star status at baseline was 2.89 out of 5; however, schools enrolled for multiple years (51%) saw significant improvement in star status, independent of school size and rural/urban status.
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Affiliation(s)
- E Francis
- Penn State College of Medicine, Hershey, PA 17033, USA
| | - R Hogentogler
- Penn State College of Medicine, Hershey, PA 17033, USA
| | - A Hoke
- Penn State PRO Wellness, Hershey, PA 17033, USA
| | - J Buckley
- Penn State PRO Wellness, Hershey, PA 17033, USA
| | - G Hwang
- Penn State College of Medicine, Hershey, PA 17033, USA
| | - E Lehman
- Penn State Public Health Sciences, Hershey, PA 17033, USA
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Santiago de Araujo Pio C, Beckie T, Varnfield M, Sarrafzadegan N, Babu A, Baidya S, Buckley J, Chen S, Gagliardi A, Heine M, Khiong JS, Mola A, Radi B, Pola MS, Trani MR, Abreu A, Sawdon J, Moffatt P, Grace S. PROMOTING PATIENT UTILIZATION OF OUTPATIENT CARDIAC REHABILITATION: A JOINT INTERNATIONAL COUNCIL AND CANADIAN ASSOCIATION OF CARDIOVASCULAR PREVENTION AND REHABILITATION POSITION STATEMENT. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.390] [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: 10/25/2022] Open
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15
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Buckley J, D’Unienville N, Nelson M, Blake H, Bellenger C. Maximal rate of heart rate increase tracks fatigue-induced changes in peak power and 30-sec maximal work in power athletes. J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.199] [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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Stanton A, Buckley J, Villani A. Adherence to a Mediterranean Diet Is Not Associated with Risk of Sarcopenic Symptomology: A Cross-Sectional Analysis of Overweight and Obese Older Adults in Australia. J Frailty Aging 2019; 8:146-149. [PMID: 31237316 DOI: 10.14283/jfa.2018.46] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Adherence to a Mediterranean Diet (MedDiet) is inversely associated with sarcopenia. The aim of this study was to examine the association between adherence to a MedDiet and sarcopenic symptomology in obese older adults. For confirmation of sarcopenia, low appendicular skeletal muscle (ASM: males, ≤7.25kg/m2; females, ≤5.5kg/m2) accompanied low handgrip strength (males, ≤30kg; females, ≤20kg) or low physical performance (Short Physical Performance Battery [SPPB]: ≤8; or gait speed: ≤0.8m/sec). Adherence to a MedDiet was determined using the Mediterranean Diet Adherence Screener (MEDAS). Sixty-five older adults were included. Adherence to a MedDiet was not associated with a decreased risk of sarcopenic symptomology (SPPB: OR = 0.20; 95% CI: 0.01-3.1; P = 0.234; Muscle strength: OR = 1.81; 95% CI: 0.32-10.15; P = 0.499; Gait speed: OR = 0.58; 95% CI: 0.13-2.50; P = 0.468). Future research should investigate whether a Mediterranean-style intervention can prevent or improve sarcopenic symptomology, including in non-Mediterranean populations.
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Affiliation(s)
- A Stanton
- Dr Anthony Villani, School of Health and Sport Sciences, University of the Sunshine Coast, Maroochydore Qld 4558 Australia; phone: +61 7 5456 3546;
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Deakin AG, Buckley J, AlZu'bi HS, Cossins AR, Spencer JW, Al'Nuaimy W, Young IS, Thomson JS, Sneddon LU. Automated monitoring of behaviour in zebrafish after invasive procedures. Sci Rep 2019; 9:9042. [PMID: 31227751 PMCID: PMC6588586 DOI: 10.1038/s41598-019-45464-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 06/06/2019] [Indexed: 12/02/2022] Open
Abstract
Fish are used in a variety of experimental contexts often in high numbers. To maintain their welfare and ensure valid results during invasive procedures it is vital that we can detect subtle changes in behaviour that may allow us to intervene to provide pain-relief. Therefore, an automated method, the Fish Behaviour Index (FBI), was devised and used for testing the impact of laboratory procedures and efficacy of analgesic drugs in the model species, the zebrafish. Cameras with tracking software were used to visually track and quantify female zebrafish behaviour in real time after a number of laboratory procedures including fin clipping, PIT tagging, and nociceptor excitation via injection of acetic acid subcutaneously. The FBI was derived from activity and distance swum measured before and after these procedures compared with control and sham groups. Further, the efficacy of a range of drugs with analgesic properties to identify efficacy of these agents was explored. Lidocaine (5 mg/L), flunixin (8 mg/L) and morphine (48 mg/L) prevented the associated reduction in activity and distance swum after fin clipping. From an ethical perspective, the FBI represents a significant refinement in the use of zebrafish and could be adopted across a wide range of biological disciplines.
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Affiliation(s)
- Anthony G Deakin
- Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3BX, UK.,Department of Evolution, Ecology and Behaviour, Institute of Integrative Biology, The BioScience Building, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Jonathan Buckley
- Department of Evolution, Ecology and Behaviour, Institute of Integrative Biology, The BioScience Building, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Hamzah S AlZu'bi
- Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3BX, UK
| | - Andrew R Cossins
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, The BioScience Building, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Joseph W Spencer
- Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3BX, UK
| | - Waleed Al'Nuaimy
- Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3BX, UK
| | - Iain S Young
- Department of Functional and Comparative Genomics, Institute of Integrative Biology, The BioScience Building, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Jack S Thomson
- School of Environmental Sciences, University of Liverpool, Nicholson Building, Brownlow Street, Liverpool, L69 3GP, UK
| | - Lynne U Sneddon
- Department of Evolution, Ecology and Behaviour, Institute of Integrative Biology, The BioScience Building, University of Liverpool, Liverpool, L69 7ZB, UK.
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Halliday L, Doganay E, Buckley J, Osborn H, Hanna G, Wynter-Blyth V, Moorthy K. Adherence to exercise during prehabilitation: The relationship with changes in fitness and post-operative pneumonia. Clin Nutr ESPEN 2019. [DOI: 10.1016/j.clnesp.2019.03.020] [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: 11/26/2022]
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Buckley J, Wible B, Cho K, Saucier N, Borsa J. 03:45 PM Abstract No. 156 Safety and efficacy of mechanical thrombectomy for acute central pulmonary embolism via large-bore aspiration technique. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.207] [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: 10/27/2022] Open
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Buckley J, Wible B, Cho K, Saucier N, Borsa J. 04:03 PM Abstract No. 158 Mechanical thrombectomy via large-bore aspiration technique versus standard of care for the treatment of acute central pulmonary embolism: a comparison of short-term outcomes. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.209] [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: 11/30/2022] Open
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Affiliation(s)
- Jonathan Buckley
- School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia.
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Hiemenz MC, Ostrow DG, Busse TM, Buckley J, Maglinte DT, Bootwalla M, Done J, Ji J, Raca G, Ryutov A, Xu X, Zhen CJ, Conroy JM, Hazard FK, Deignan JL, Rogers BB, Treece AL, Parham DM, Gai X, Judkins AR, Triche TJ, Biegel JA. OncoKids: A Comprehensive Next-Generation Sequencing Panel for Pediatric Malignancies. J Mol Diagn 2018; 20:765-776. [PMID: 30138724 DOI: 10.1016/j.jmoldx.2018.06.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/22/2018] [Accepted: 06/11/2018] [Indexed: 02/08/2023] Open
Abstract
The OncoKids panel is an amplification-based next-generation sequencing assay designed to detect diagnostic, prognostic, and therapeutic markers across the spectrum of pediatric malignancies, including leukemias, sarcomas, brain tumors, and embryonal tumors. This panel uses low input amounts of DNA (20 ng) and RNA (20 ng) and is compatible with formalin-fixed, paraffin-embedded and frozen tissue, bone marrow, and peripheral blood. The DNA content of this panel covers the full coding regions of 44 cancer predisposition loci, tumor suppressor genes, and oncogenes; hotspots for mutations in 82 genes; and amplification events in 24 genes. The RNA content includes 1421 targeted gene fusions. We describe the validation of this panel by using a large cohort of 192 unique clinical samples that included a wide range of tumor types and alterations. Robust performance was observed for analytical sensitivity, reproducibility, and limit of detection studies. The results from this study support the use of OncoKids for routine clinical testing of a wide variety of pediatric malignancies.
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Affiliation(s)
- Matthew C Hiemenz
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California.
| | - Dejerianne G Ostrow
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Tracy M Busse
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Jonathan Buckley
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Dennis T Maglinte
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Moiz Bootwalla
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - James Done
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Jianling Ji
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Gordana Raca
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Alex Ryutov
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Xinjie Xu
- Cytogenetics and Genomic Microarray, ARUP Laboratories, Salt Lake City, Utah; Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah
| | - Chao Jie Zhen
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - Jeffrey M Conroy
- OmniSeq Inc., Buffalo, New York; Center for Personalized Medicine, Roswell Park Cancer Institute, Buffalo, New York
| | - Florette K Hazard
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Joshua L Deignan
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Beverly B Rogers
- Department of Pathology and Laboratory Medicine, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Amanda L Treece
- Department of Pathology and Laboratory Medicine, Children's Hospital Colorado, Denver, Colorado
| | - David M Parham
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Xiaowu Gai
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Alexander R Judkins
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Timothy J Triche
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
| | - Jaclyn A Biegel
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, Keck School of Medicine of USC, Los Angeles, California
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Nason GJ, Selvarajah L, O’Connor EM, O’Kelly J, Considine SW, Moss B, MacMahon D, Heneghan J, Meyer N, Buckley J, O’Regan K, O’Brien MF. The Predictive Ability of Pre-Operative Magnetic Resonance Imaging to Detect Pathological Outcomes in Prostate Cancer. Ir Med J 2018; 111:790. [PMID: 30520617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Aims Accurate preoperative knowledge of tumour stage is important in preoperative planning at radical prostatectomy (RP). The aim of this study was to assess the predictive ability of multiparametric MRI for detecting pathological outcomes. Methods A retrospective review was performed of all patients who underwent RP over a 4 year period. Results Preoperative MRI was reported as showing T3 or T4 disease in 26(17.9%) out of 145 patients undergoing RP. Of these, 10(6.9%) had ECE (extra-capsular extension) and 1(0.7%) had SVI (seminal vesicle invasion) on final histology. The sensitivity and specificity of MRI for detecting ECE were 27.3% and 87.6%, respectively. The sensitivity and specificity of MRI for detecting SVI were 11.1% and 97.8%, respectively. The positive predictive values for determining ECE and SVI were 45.5% and 25%, respectively and negative predictive values were 75.9% and 94.4%. Conclusion MRI has good specificity but poor and heterogeneous sensitivity for predicting T3 disease in RP specimen.
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Affiliation(s)
- G J Nason
- Department of Urology, Cork University Hospital, Wilton, Cork, Ireland
| | - L Selvarajah
- Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland
| | - E M O’Connor
- Department of Urology, Cork University Hospital, Wilton, Cork, Ireland
| | - J O’Kelly
- Department of Urology, Cork University Hospital, Wilton, Cork, Ireland
| | - S W Considine
- Department of Urology, Cork University Hospital, Wilton, Cork, Ireland
| | - B Moss
- Department of Urology, Cork University Hospital, Wilton, Cork, Ireland
| | - D MacMahon
- Department of Urology, University Hospital Waterford, Waterford, Ireland
| | - J Heneghan
- Department of Radiology, University Hospital Waterford, Waterford, Ireland
| | - N Meyer
- Department of Histopathology, Cork University Hospital, Wilton, Cork, Ireland
| | - J Buckley
- Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland
| | - K O’Regan
- Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland
| | - M F O’Brien
- Department of Urology, Cork University Hospital, Wilton, Cork, Ireland
- Department of Urology, University Hospital Waterford, Waterford, Ireland
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McGhee J, Buckley J, McGhee P. Can Tomorrow’s NHS surgeons be debt free? Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.478] [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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25
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Walker A, Buckley J, Zhang K, Dong B, Holloway L, Liney G. PV-0533: Methods for distortion assessment and correction on the Australian MRI-linac. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30843-0] [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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26
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Villani A, Wright H, Slater G, Buckley J. A randomised controlled intervention study investigating the efficacy of carotenoid-rich fruits and vegetables and extra-virgin olive oil on attenuating sarcopenic symptomology in overweight and obese older adults during energy intake restriction: protocol paper. BMC Geriatr 2018; 18:2. [PMID: 29304744 PMCID: PMC5755414 DOI: 10.1186/s12877-017-0700-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 12/28/2017] [Indexed: 12/20/2022] Open
Abstract
Background Weight loss interventions have not been advocated for overweight/obese older adults due to potential loss of skeletal muscle and strength impacting on physical function with potential loss of independence. Carotenoids and polyphenols are inversely associated with sarcopenic symptomology. This paper reports the protocol of a study evaluating the efficacy of a high-protein, energy restricted diet rich in carotenoids and polyphenols on body composition, muscle strength, physical performance and quality of life in overweight and obese older adults. Methods This randomised controlled clinical trial will recruit community-dwelling, healthy overweight and obese older adults (≥60 years) for a 12-week weight loss intervention. Seventy-three participants will be recruited and randomized to an energy restricted (~30% restriction), isocaloric diet (30% protein; 30% carbohydrate; 40% fat) enriched with either: a) 375 g/d of high carotenoid vegetables, 300 g/d high carotenoid fruit, and 40-60 ml extra-virgin olive oil (EVOO); or b) 375 g/d of lower carotenoid vegetables, 300 g/d lower carotenoid fruit, and 40-60 ml Polyunsaturated fatty acid (PUFA) based oil. All participants will receive individual dietary counselling each fortnight for the duration of the study and will be asked to maintain their habitual level of physical activity throughout the study. The primary outcome will be appendicular skeletal muscle (ASM) assessed by dual energy X-ray absorptiometry (DXA). Secondary outcomes will include body weight, fat-free mass (FFM), fat mass (FM), muscle strength (Isometric hand-grip strength), physical performance (Short Physical Performance Battery), physical activity (International Physical Activity Questionnaire) and health related quality of life (SF-36). Outcomes will be measured at baseline and at week 12. Discussion The results of this study will provide a novel insight relating to the potential influence of high carotenoid and polyphenol intakes on attenuation of ASM during dietary energy-restricted weight loss in overweight and obese older adults. Trial registration The trial was registered on the Australia New Zealand Clinical Trials Register (ACTRN12616001400459); Trial registration date: 10th October, 2016.
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Affiliation(s)
- Anthony Villani
- School of Health and Sport Sciences, University of the Sunshine Coast, Sippy Downs, QLD, Australia.
| | - Hattie Wright
- School of Health and Sport Sciences, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Gary Slater
- School of Health and Sport Sciences, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Jonathan Buckley
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
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27
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Buckley J, Wallis L, Seifi A. LB957 Impact of insurance status on outcomes in melanoma. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.032] [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: 11/26/2022]
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28
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Bhandal J, Renshaw D, Buckley J, Maddock H, Hussain A. P1747A1 Adenosine receptor activation can protect the myocardium from ischaemia reperfusion injury post reperfusion. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1747] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Balasubramanian I, Buckley J, Merrigan A, Twormey S. Cross sectional study of a single unit's experience with post mastectomy reconstruction in breast cancer patients. Int J Surg 2016. [DOI: 10.1016/j.ijsu.2016.08.112] [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]
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30
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Humphreys H, Buckley J. What is the most appropriate outcome measure from the Incremental Shuttle Walk Test in cardiac patients? A systematic critical review. Physiotherapy 2016. [DOI: 10.1016/j.physio.2016.10.166] [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]
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31
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Feng J, Jing J, Sanchez-Lara PA, Bootwalla MS, Buckley J, Wu N, Yan Y, Chai Y. Generation and characterization of tamoxifen-inducible Pax9-CreER knock-in mice using CrispR/Cas9. Genesis 2016; 54:490-6. [PMID: 27381449 PMCID: PMC5021577 DOI: 10.1002/dvg.22956] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 06/08/2016] [Revised: 07/01/2016] [Accepted: 07/03/2016] [Indexed: 02/05/2023]
Abstract
Pax9 encodes a paired-box homeodomain (Pax) transcription factor and is critical for the development of multiple organs. Using CrispR/Cas9-mediated homologous directed repair (HDR), we generated a new Pax9-CreER knock-in mouse line in which the CreER(T2) fusion protein is produced after synthesis of endogenous Pax9 protein. We found that tdTomato reporter expression in Pax9-CreER;tdTomato reporter mice is detectable in a similar pattern to the endogenous Pax9 expression, faithfully recapitulating the Pax9 expression domains throughout the embryo and in the adult mouse. At early embryonic stages, the tdTomato reporter is expressed first in the pharyngeal pouch region and later in the craniofacial mesenchyme, somites, limbs, and lingual papillae in the adult tongue. These results demonstrate that this new Pax9-CreER knock-in mouse line can be used for lineage tracing and genetic targeting of Pax9-expressing cells and their progeny in a temporally and spatially controlled manner during development and organogenesis.
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Affiliation(s)
- Jifan Feng
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA, 90033, USA
| | - Junjun Jing
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA, 90033, USA
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Pedro A Sanchez-Lara
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA, 90033, USA
- Center for Personalized Medicine, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
- Department of Pathology & Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089, USA
| | - Moiz S Bootwalla
- Center for Personalized Medicine, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - Jonathan Buckley
- Center for Personalized Medicine, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089, USA
| | - Nancy Wu
- USC Norris Comprehensive Cancer Center Transgenic/Knockout Rodent Core Facility, Los Angeles, CA, 90089, USA
| | - Youzhen Yan
- USC Norris Comprehensive Cancer Center Transgenic/Knockout Rodent Core Facility, Los Angeles, CA, 90089, USA
| | - Yang Chai
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, CA, 90033, USA.
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32
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Xu T, Morrison G, Xu Y, Triche T, Buckley J, Goldkorn A. Abstract 1546: Differential gene expression analysis by NGS of primary tumor xenograft cells, circulating tumor cells, and metastasis cells purified from the same mouse hosts to identify drivers of cancer dissemination. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-1546] [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: 11/16/2022]
Abstract
Abstract
Introduction: Cancer dissemination involves ongoing dynamic transit of tumor cells between primary and metastatic sites via a hematogenous or “liquid phase”. To identify molecular mechanisms related to the liquid phase of cancer dissemination, we developed a tractable mouse xenograft model wherein GFP-labeled pure primary tumor (PT) cells, circulating tumor cells (CTCs) and lung metastasis (LM) cells are isolated and characterized from the same host.
Methods: GFP+ MDA-MB-231 human breast cancer cells were inoculated subcutaneously into NOD/SCID/IL2r-γnull (NSG) mice. When a 1cm diameter primary tumor xenograft formed, 500 μl blood were collected by intracardiac puncture, and CTCs were enriched by wbc/rbc depletion (StemCell Tech). PT and LM samples were fluorescence microdissected from the same mouse hosts and disaggregated into single cell suspensions. Using a micromanipulator pipette, matched PT, CTC, and LM samples (100 pure GFP+ cells each) were isolated, lysed for RNA extraction (Ambion), and analyzed using the Ion AmpliSeq Transcriptome Human Gene Expression workflow for library preparation and pooled sequencing (Ion Proton). Sequence data from biologic triplicates was aligned and curated using the Genetrix bioinformatics suite, and candidate genes were further analyzed using Ingenuity Pathway Analysis (IPA).
Results: The sequence panel provides gene-level expression information from over 20,000 genes covering > 95% of the RefSeq gene database. Initially, we focused on genes that were up- or down- regulated in CTCs compared with both PT and LM (i.e. differentially expressed in the liquid phase: 402 genes, 184 up-regulated in CTCs, 218 down-regulated in CTCs, fold change range 1.2x-22x). After further filtering for false discovery, 4 up-regulated and 39 down-regulated genes were selected for IPA analysis, which revealed associations with cellular movement pathways (16 genes) and cancer pathways (24 genes). Of these, the top-ranked 12 differentially expressed genes in CTCs relative to PT and LM (9 down-regulated and 3 up-regulated) were selected for validation by qPCR and further functional characterization in the mouse xenograft model.
Conclusions: Here we leveraged new techniques for pure CTC capture, AmpliSeq transcriptome amplification and sequencing to identify and validate new candidate drivers of cancer dissemination. This model holds the potential to uncover key mechanisms engaged by cells that leave the primary and metastatic tumor niche and enter the cancer's liquid phase. Further validation and functional analysis of these candidates in vitro, in vivo and in patient samples may identify new therapeutic targets that specifically disrupt cancer dissemination.
Citation Format: Tong Xu, Gareth Morrison, Yucheng Xu, Timothy Triche, Jonathan Buckley, Amir Goldkorn. Differential gene expression analysis by NGS of primary tumor xenograft cells, circulating tumor cells, and metastasis cells purified from the same mouse hosts to identify drivers of cancer dissemination. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 1546.
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Affiliation(s)
- Tong Xu
- University of Southern California, Los Angeles, CA
| | | | - Yucheng Xu
- University of Southern California, Los Angeles, CA
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33
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Watson N, Dyer K, Buckley J, Brinkworth G, Coates A, Parfitt G, Howe P, Noakes M, Murphy K. Effects of Low-Fat Diets Differing in Protein and Carbohydrate Content on Cardiometabolic Risk Factors during Weight Loss and Weight Maintenance in Obese Adults with Type 2 Diabetes. Nutrients 2016; 8:nu8050289. [PMID: 27187457 PMCID: PMC4882702 DOI: 10.3390/nu8050289] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/26/2016] [Accepted: 05/05/2016] [Indexed: 12/25/2022] Open
Abstract
Despite evidence for the benefits of higher-protein (HP) diets in weight loss, their role in type 2 diabetes mellitus (T2DM) management and weight maintenance is not clear. This randomised study compared the effects of a HP diet (38% carbohydrate, 30% protein, 29% fat) to a isocaloric higher-carbohydrate diet (HC: 53%:21%:23%) on cardiometabolic risk factors for 12 weeks in energy restriction (~30% reduction) followed by 12 weeks of energy balance whilst performing regular exercise. Outcomes were measured at baseline and the end of each phase. Sixty-one overweight/obese adults (BMI (body mass index) 34.3 ± 5.1 kg/m2, aged 55 ± 8 years) with T2DM who commenced the study were included in the intention-to-treat analysis including the 17 participants (HP n = 9, HC n = 8) who withdrew. Following weight loss (M ± SEM: −7.8 ± 0.6 kg), there were significant reductions in HbA1c (−1.4% ± 0.1%, p < 0.001) and several cardiometabolic health risk factors. Improvements were sustained for 12 weeks when weight was stabilised and weight loss maintained. Both the HP and HC dietary patterns with concurrent exercise may be effective strategies for weight loss and weight maintenance in T2DM although further studies are needed to determine the longer term effects of weight maintenance.
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Affiliation(s)
- Nerylee Watson
- Alliance for Research in Exercise, Nutrition and Activity, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, SA, Australia.
| | - Kathryn Dyer
- Alliance for Research in Exercise, Nutrition and Activity, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, SA, Australia.
| | - Jonathan Buckley
- Alliance for Research in Exercise, Nutrition and Activity, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, SA, Australia.
| | - Grant Brinkworth
- Food and Nutrition, Commonwealth Scientific and Industrial Research Organization, PO Box 10041, Adelaide 5000, SA, Australia.
| | - Alison Coates
- Alliance for Research in Exercise, Nutrition and Activity, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, SA, Australia.
| | - Gaynor Parfitt
- Alliance for Research in Exercise, Nutrition and Activity, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, SA, Australia.
| | - Peter Howe
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, University Drive, Callaghan 2308, NSW, Australia.
| | - Manny Noakes
- Food and Nutrition, Commonwealth Scientific and Industrial Research Organization, PO Box 10041, Adelaide 5000, SA, Australia.
| | - Karen Murphy
- Alliance for Research in Exercise, Nutrition and Activity, Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide 5001, SA, Australia.
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Li WL, Buckley J, Sanchez-Lara PA, Maglinte DT, Viduetsky L, Tatarinova TV, Aparicio JG, Kim JW, Au M, Ostrow D, Lee TC, O'Gorman M, Judkins A, Cobrinik D, Triche TJ. A Rapid and Sensitive Next-Generation Sequencing Method to Detect RB1 Mutations Improves Care for Retinoblastoma Patients and Their Families. J Mol Diagn 2016; 18:480-93. [PMID: 27155049 DOI: 10.1016/j.jmoldx.2016.02.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 01/14/2016] [Accepted: 02/01/2016] [Indexed: 01/26/2023] Open
Abstract
Retinoblastoma is a childhood eye malignancy that can lead to the loss of vision, eye(s), and sometimes life. The tumors are initiated by inactivating mutations in both alleles of the tumor-suppressor gene, RB1, or, rarely, by MYCN amplification. Timely identification of a germline RB1 mutation in blood samples or either somatic RB1 mutation or MYCN amplification in tumors is important for effective care and management of retinoblastoma patients and their families. However, current procedures to thoroughly test RB1 mutations are complicated and lengthy. Herein, we report a next-generation sequencing-based method capable of detecting point mutations, small indels, and large deletions or duplications across the entire RB1 gene and amplification of MYCN gene on a single platform. From DNA extraction to clinical interpretation requires only 3 days, enabling early molecular diagnosis of retinoblastoma and optimal treatment outcomes. This method can also detect low-level mosaic mutations in blood samples that can be missed by routine Sanger sequencing. In addition, it can differentiate between RB1 mutation- and MYCN amplification-driven retinoblastomas. This rapid, comprehensive, and sensitive method for detecting RB1 mutations and MYCN amplification can readily identify RB1 mutation carriers and thus improve the management and genetic counseling for retinoblastoma patients and their families.
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Affiliation(s)
- Wenhui L Li
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, USC Roski Eye Institute, University of Southern California, Los Angeles, California.
| | - Jonathan Buckley
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, USC Roski Eye Institute, University of Southern California, Los Angeles, California
| | - Pedro A Sanchez-Lara
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, USC Roski Eye Institute, University of Southern California, Los Angeles, California; Department of Pediatrics, USC Roski Eye Institute, University of Southern California, Los Angeles, California
| | - Dennis T Maglinte
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Lucy Viduetsky
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Tatiana V Tatarinova
- Department of Pediatrics, USC Roski Eye Institute, University of Southern California, Los Angeles, California; Spatial Sciences Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, California
| | | | - Jonathan W Kim
- Vision Center, Children's Hospital Los Angeles, Los Angeles, California; Department of Opthalmology, USC Roski Eye Institute, University of Southern California, Los Angeles, California
| | - Margaret Au
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Dejerianne Ostrow
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Thomas C Lee
- Vision Center, Children's Hospital Los Angeles, Los Angeles, California; Department of Opthalmology, USC Roski Eye Institute, University of Southern California, Los Angeles, California
| | - Maurice O'Gorman
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, USC Roski Eye Institute, University of Southern California, Los Angeles, California
| | - Alexander Judkins
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, USC Roski Eye Institute, University of Southern California, Los Angeles, California
| | - David Cobrinik
- Vision Center, Children's Hospital Los Angeles, Los Angeles, California; Department of Opthalmology, USC Roski Eye Institute, University of Southern California, Los Angeles, California; Division of Ophthalmology and Department of Surgery, and Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California; Department of Biochemistry & Molecular Biology, USC Roski Eye Institute, University of Southern California, Los Angeles, California; Norris Comprehensive Cancer Center, USC Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Timothy J Triche
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California; Department of Pathology, USC Roski Eye Institute, University of Southern California, Los Angeles, California.
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Fuller J, Buckley J, Thewlis D, Tsiros M, Brown N, Hamill J. Increasing Body Mass Increases The Incidence Of Injury In Runners Using Minimalist Shoes. Med Sci Sports Exerc 2016. [DOI: 10.1249/01.mss.0000485508.25899.4a] [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: 11/21/2022]
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Das R, Buckley J, Williams M. Assessing multiple dimensions of urgency sensation: The University of South Australia Urinary Sensation Assessment (USA 2 ). Neurourol Urodyn 2016; 36:667-672. [PMID: 26999753 DOI: 10.1002/nau.22992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 11/10/2015] [Accepted: 02/22/2016] [Indexed: 11/08/2022]
Abstract
AIMS To develop and assess structure, test-retest reliability, and discriminative validity of a self-report questionnaire (University of South Australia Urinary Sensation Assessment: USA2 ) to assess multiple dimensions of urgency sensation. METHODS The USA2 was designed and tested over two prospective, observational studies (2013-2014). Participants were English speaking Australians aged 50 or more with and without overactive bladder (OAB; determined by OAB awareness tool), recruited via health and recreation centers. In Study 1, exploratory factor analysis determined USA2 structure and subscales. In Study 2, confirmatory factor analysis reassessed structure; Mann-Whitney U-tests determined discriminative validity (OAB vs. non-OAB for subscale and total scores) with Cohen's d effect sizes. Thirty-three individuals completed the USA2 twice; intraclass correlation coefficients (ICCs) and Wilcoxon signed rank tests assessed test-retest reliability. RESULTS Questionnaires were returned by 189 eligible participants in Study 1 and 211 in Study 2. Exploratory factor analysis revealed three subscales: "urgency," "affective," "fullness." Confirmatory factor analysis supported these subscales. Subscale and total scores were significantly different between groups with and without OAB (P < 0.001). Cohen's d effect sizes (95%CI) were total score 1.8 (0.5-3.1), "urgency" subscale 1.8 (1.3-2.3), "affective" 1.7 (0.95-2.4), and "fullness" 0.75 (0.42-1.09). Total and subscales scores demonstrated test-retest reliability; ICCs (95%CIs) of 0.95 (0.9-0.98), 0.96 (0.92-0.98), 0.94 (0.88-0.97), and 0.78 (0.56-0.89). CONCLUSIONS The USA2 assesses multiple dimensions of urgency sensation, is reliable over a 2-week period, and discriminates between older adults with and without OAB. Further validation is required in conditions other than overactive bladder. Neurourol. Urodynam. 36:667-672, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Rebekah Das
- School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Jonathan Buckley
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Marie Williams
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
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Street SJ, Parletta N, Milte C, Sullivan K, Hills AP, Buckley J, Howe P. Interaction of erythrocyte eicosapentaenoic acid and physical activity predicts reduced risk of mild cognitive impairment. Aging Ment Health 2015; 19:885-91. [PMID: 25374153 DOI: 10.1080/13607863.2014.971705] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To evaluate relationships between self-reported physical activity, proportions of long-chain omega-3 polyunsaturated fatty acids (LCn3) in erythrocyte content (percentage of total fatty acids) and risk of mild cognitive impairment (MCI) in older adults. METHOD A cross-sectional study was conducted. Community-dwelling male and female (n = 84) participants over the age of 65 years with and without MCI were tested for erythrocyte proportions of the LCn3s eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Physical activity was measured using a validated questionnaire. RESULTS The interaction between erythrocyte EPA, but not DHA, and increased physical activity was associated with increased odds of a non-MCI classification. CONCLUSION An interaction between physical activity and erythrocyte EPA content (percentage of fatty acids) significantly predicted MCI status in older adults. Randomised control trials are needed to examine the potential for supplementation with EPA in combination with increased physical activity to mitigate the risk of MCI in ageing adults.
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Affiliation(s)
- Steven John Street
- a School of Psychology and Counselling , Queensland University of Technology , Kelvin Grove , Australia
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Rawson TM, Abbara A, Kranzer K, Ritchie A, Milburn J, Brown T, Adeboyeku D, Buckley J, Davidson RN, Berry M, Kon OM, John L. P264 A multi-centre review of the management of pulmonary Non-Tuberculous Mycobacterial (NTM) infection in HIV-negative subjects: Abstract P264 Table 1. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.400] [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: 11/03/2022]
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Fuller J, Thewlis D, Tsiros M, Brown N, Buckley J. Training in a minimalist shoe improves running performance in trained distance runners. J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.145] [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: 10/22/2022]
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40
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Jones KA, Choong AMTL, Canham N, Renton S, Pollitt R, Nesbitt M, Kopcke D, Islam L, Buckley J, Ghali N, Vandersteen A. A combined vascular surgical and clinical genetics approach to diffuse aneurysmal disease. Ann R Coll Surg Engl 2015; 97:e73-6. [PMID: 26264107 DOI: 10.1308/003588415x14181254790121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We report two patients who presented with extensive aneurysmal disease, in association with minimal external physical signs. Patient 1 remained genetically undiagnosed despite multiple structural, biochemical and genetic investigations. He made a good recovery following surgery for popliteal and left axillary artery aneurysms. Patient 2 was diagnosed with vascular type Ehlers-Danlos syndrome, associated with a high degree of tissue and blood vessel fragility, and is being managed conservatively. Early multidisciplinary assessment of such patients facilitates accurate diagnosis and management.
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Affiliation(s)
- K A Jones
- Outer London North West Vascular Unit, Northwick Park Hospital, London North West Healthcare NHS Trust , UK
| | | | - N Canham
- North West London Regional Genetics Service, Level 8V, Saint Mark's Hospital, London North West Healthcare NHS Trust , UK
| | - S Renton
- Outer London North West Vascular Unit, Northwick Park Hospital, London North West Healthcare NHS Trust , UK
| | - R Pollitt
- Ehlers-Danlos Syndrome National Diagnostic Service, Sheffield Children's Hospitals NHS Foundation Trust , UK
| | - M Nesbitt
- Ehlers-Danlos Syndrome National Diagnostic Service, Sheffield Children's Hospitals NHS Foundation Trust , UK
| | - D Kopcke
- Department of Radiology, Northwick Park Hospital, London North West Healthcare NHS Trust , UK
| | - L Islam
- West Midlands Regional Genetics Service, Birmingham Women's NHS Foundation Trust , UK
| | - J Buckley
- Department of Infectious diseases, Northwick Park Hospital, London North West Healthcare NHS Trust , UK
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Stevenson DR, Biswas JR, Lievesley A, Quinn G, Buckley J, John L, Davidson RN. False-positive Xpert ® MTB/RIF more than seven years after cure. Int J Tuberc Lung Dis 2015; 19:1264-5. [DOI: 10.5588/ijtld.15.0419] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abbara A, Sullivan J, Buell K, Collin SM, John L, Buckley J, Davidson R. 71A RETROSPECTIVE COHORT REVIEW OF TB IN OLDER PERSONS AT A LARGE TB CENTRE IN NORTH WEST LONDON: COMORBIDITIES, POLYPHARMACY AND DRUG INTOLERANCE PRESENT CHALLENGES TO DIAGNOSIS AND MANAGEMENT. Age Ageing 2015. [DOI: 10.1093/ageing/afv115.01] [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: 11/12/2022] Open
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43
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Ghani R, Durkan H, John L, Davidson R, Buckley J. M39 Screening For Tuberculomas In Patients With Miliary Tuberculosis - What Modality Of Imaging Should We Be Using? Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.427] [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: 11/03/2022]
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Chitty S, Ghani R, Roe J, Davidson H, Routledge M, Edwards T, Hateley C, Collin S, Ritchie A, Dzvova J, Buckley J, Davidson R, John L. P190 Drug Induced Liver Injury In The Treatment Of Tuberculosis In A Busy Uk Centre. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.319] [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: 11/03/2022]
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O’Kelly F, Elamin S, Cahill A, Aherne P, White J, Buckley J, O’Regan KN, Brady A, Power DG, O’Brien MF, Sweeney P, Mayer N, Kelly PJ. Erratum to: Characteristics of modern Gleason 9/10 prostate adenocarcinoma: a single tertiary centre experience within the Republic of Ireland. World J Urol 2014. [DOI: 10.1007/s00345-014-1249-x] [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: 10/25/2022] Open
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Best T, Howe P, Bryan J, Buckley J, Scholey A. Acute effects of a dietary non-starch polysaccharide supplement on cognitive performance in healthy middle-aged adults. Nutr Neurosci 2014; 18:76-86. [PMID: 24621069 DOI: 10.1179/1476830513y.0000000101] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Certain plant polysaccharides may provide psychological health benefits. The aim of this study was to evaluate whether they can acutely improve mood and cognitive function. METHOD In a randomized, double-blind, placebo-controlled, between subjects design trial, 73 middle-aged adults consumed 4 g of a proprietary mixture of non-starch polysaccharides (NSPs) (Ambrotose® complex), a rice flour placebo, or a sucrose control. Participants completed testing at baseline and 30 minutes post-consumption. Acute effects of consumption on mood, cognition, and blood glucose were evaluated during mental tests designed to induce mental fatigue. RESULTS Significant improvement in recognition and working memory performance was observed in the group that consumed NSP compared with placebo or sucrose. Improvements in memory performance following NSP intake were independent of changes in blood glucose. DISCUSSION This is the first report of acute behavioural improvement following plant polysaccharide intake in healthy middle-aged adults under conditions of mental fatigue. The findings suggest that certain NSP may enhance memory performance through mechanisms other than elevated blood glucose.
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Pekmezci M, McDonald E, Buckley J, Kandemir U. Retrograde intramedullary nails with distal screws locked to the nail have higher fatigue strength than locking plates in the treatment of supracondylar femoral fractures. Bone Joint J 2014; 96-B:114-21. [DOI: 10.1302/0301-620x.96b1.31135] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [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: 11/05/2022]
Abstract
We investigated a new intramedullary locking nail that allows the distal interlocking screws to be locked to the nail. We compared fixation using this new implant with fixation using either a conventional nail or a locking plate in a laboratory simulation of an osteoporotic fracture of the distal femur. A total of 15 human cadaver femora were used to simulate an AO 33-A3 fracture pattern. Paired specimens compared fixation using either a locking or non-locking retrograde nail, and using either a locking retrograde nail or a locking plate. The constructs underwent cyclical loading to simulate single-leg stance up to 125 000 cycles. Axial and torsional stiffness and displacement, cycles to failure and modes of failure were recorded for each specimen. When compared with locking plate constructs, locking nail constructs had significantly longer mean fatigue life (75 800 cycles (sd 33 900) vs 12 800 cycles (sd 6100); p = 0.007) and mean axial stiffness (220 N/mm (sd 80) vs 70 N/mm (sd 18); p = 0.005), but lower mean torsional stiffness (2.5 Nm/° (sd 0.9) vs 5.1 Nm/° (sd 1.5); p = 0.008). In addition, in the nail group the mode of failure was either cut-out of the distal screws or breakage of nails, and in the locking plate group breakage of the plate was always the mode of failure. Locking nail constructs had significantly longer mean fatigue life than non-locking nail constructs (78 900 cycles (sd 25 600) vs 52 400 cycles (sd 22 500); p = 0.04). The new locking retrograde femoral nail showed better stiffness and fatigue life than locking plates, and superior fatigue life to non-locking nails, which may be advantageous in elderly patients. Cite this article: Bone Joint J 2014;96-B:114–21.
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Affiliation(s)
- M. Pekmezci
- Orthopaedic Trauma Institute, 2550
23rd Street, Building 9, 2nd
Floor, San Francisco, California
94110, USA
| | - E. McDonald
- Orthopaedic Trauma Institute, 2550
23rd Street, Building 9, 2nd
Floor, San Francisco, California
94110, USA
| | - J. Buckley
- University of Delaware, Department
of Mechanical Engineering, 106 Spencer Lab, Newark, Delaware, 19716, USA
| | - U. Kandemir
- Orthopaedic Trauma Institute, 2550
23rd Street, Building 9, 2nd
Floor, San Francisco, California
94110, USA
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Affiliation(s)
- J. Buckley
- Amphibian & Reptile Conservation; Bournemouth Dorset UK
| | | | - B. R. Schmidt
- Institute of Evolutionary Biology and Environmental Studies; University of Zurich; Zurich Switzerland
- KARCH; Neuchatel Switzerland
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Abstract
PURPOSE Urinary urgency is an adverse sensory experience. Confirmation of the multidimensional nature of other adverse sensory experiences such as pain and dyspnea has improved the understanding of neurophysiological and perceptual mechanisms leading to innovations in assessment and treatment. It has been suggested that the sensation of urgency may include multiple dimensions such as intensity, suddenness and unpleasantness. In this systematic review we determine which dimensions of sensation have been assessed by instruments used to measure urinary urgency. MATERIALS AND METHODS A systematic search was undertaken of MEDLINE, Embase, AMED, CINAHL, Ageline, Web of Science, InformIT Health and Scopus databases to identify studies that included assessments of urinary urge or urgency. Articles were included in the analysis if they were primary studies that described the method used to measure urge/urgency in adults and published in English in peer reviewed publications since January 1, 2000. Articles were excluded from study if urgency was measured only in conjunction with other symptoms (eg frequency or incontinence) or if there was no English version of the instrument. Secondary analyses and systematic reviews were retained to hand search references for additional primary studies. Data were extracted for the instruments used to measure urge/urgency. For each instrument the items specific to urinary urgency were reviewed using a prospectively developed categorization process for the sensory dimension and the measurement metric. Items used to assess urinary urgency were collated in a matrix (sensory dimensions vs assessment metric). The most frequently used dimensions, metrics and combinations were descriptively analyzed. RESULTS After removal of duplicate articles 1,048 full text articles were screened and 411 were excluded, leaving 637 eligible articles from which data were extracted. A total of 216 instruments were identified which were 1 of 6 types, namely 1) wider symptom questionnaires, 2) urgency specific questionnaires, 3) ordinal scales, 4) visual analog scales, 5) event records or 6) body maps. These 216 instruments contained a total of 309 urgency specific items. Of the instruments 51% did not define a dimension of sensation and 26% did not define the metric used. From the remaining instruments 8 dimensions of sensation and 5 types of metrics were identified. From most common to least common, the sensory dimensions assessed were behavioral response, intensity, suddenness, bother, affective response, unpleasantness, quality (descriptors) and problems associated with sensation. Metrics were magnitude, frequency, presence, time frame or location. The most common sensory dimension/metric combinations were frequency of a behavioral response (14% of items) and magnitude of bother caused by the sensation (8% of items). CONCLUSIONS The hypothesis that urinary urgency is multidimensional is supported by the range of dimensions assessed with available instruments. To clarify the nature of urinary urgency compared with the normal desire to void, prospective studies are required to determine whether sensory dimensions are distinct, and which may delineate between normal and pathological sensation.
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Affiliation(s)
- Rebekah Das
- Centre for Nutritional Physiology, Sansom Institute for Health Research, School of Health Sciences, University of South Australia, City East Campus, Adelaide, South Australia, Australia.
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