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Napier M, Reynolds K, Scott AL. Glial-mediated dysregulation of neurodevelopment in Fragile X Syndrome. Int Rev Neurobiol 2023; 173:187-215. [PMID: 37993178 DOI: 10.1016/bs.irn.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Astrocytes are highly involved in a multitude of developmental processes that are known to be dysregulated in Fragile X Syndrome. Here, we examine these processes individually and review the roles astrocytes play in contributing to the pathology of this syndrome. As a growing area of interest in the field, new and exciting insight is continually emerging. Understanding these glial-mediated roles is imperative for elucidating the underlying molecular mechanisms at play, not only in Fragile X Syndrome, but also other ASD-related disorders. Understanding these roles will be central to the future development of effective, clinically-relevant treatments of these disorders.
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Affiliation(s)
- M Napier
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Canada; Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
| | - K Reynolds
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada; Department of Neuroscience, Tufts University School of Medicine, Boston, United States
| | - A L Scott
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Canada; Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada.
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Drobni Z, Gong J, Raghu V, Zafar A, Gongora C, Quinaglia T, Suero-Abreu G, Gilman H, Gao X, Sullivan R, Merkely B, Reynolds K, Neilan T. Association between immune checkpoint inhibitors and vascular endothelial growth factor targeted therapy with cardiovascular events. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
The use of immune checkpoint inhibitors (ICI) has been associated with a 3-fold higher risk for cardiovascular events as compared to cancer patients who did not receive ICI. Therapies targeting vascular endothelial growth factor (VEGF) have also been associated with a wide range of cardiovascular events. The combination use of ICIs and VEGF inhibitors is currently approved as a treatment for patients with renal-cell carcinoma, hepatocellular carcinoma, non-small cell lung cancer, and endometrial cancer. Data are lacking whether the combination of ICIs and VEGF-targeted therapy is associated with an additional increase in cardiovascular events.
Purpose
To evaluate whether the combination use of ICI and VEGF targeted therapies are associated with a higher risk of cardiovascular events as compared to ICI therapy alone, we performed a retrospective matched case-control study.
Methods
Cases received both ICI and VEGF-targeted therapy (n=157), and control patients (n=157) only received ICI therapy. The primary outcome was a composite of cardiovascular events (myocardial infarction, coronary revascularization, ischemic stroke, deep venous thrombosis, and pulmonary embolism). Patients were censored at time of first event or at last date of follow up. Cox proportional hazard regression analysis was performed to calculate hazard ratio (HR) with 95% confidence interval (CI), counting only the first cardiovascular event.
Results
Baseline characteristics for the cases and controls are shown in Table 1. Overall cases (combination ICI and VEGF inhibitor) and controls (ICI alone) were not different with respect to age, type of cancer, and a prior history of any cardiovascular event. Cases received more ICI cycles as compared to controls (median of 7 [4–17] cycles vs. 4 [2–10] cycles, P<0.001). Cases also had a longer follow-up time (334 [127–663] days vs. 201 [60–564] days, P=0.008) as compared to the control group. As compared to ICI alone, a similar risk for a composite cardiovascular event was observed in those who received both ICI and VEGF-targeted therapy (HR, 0.70 [95% CI, 0.39–1.25]; P=0.23, Table 1). In total, 21/157 patients had a composite cardiovascular event among the cases, who received the combination of ICI and VEGF inhibitor (9 DVT, one MI, 9 PE, two ischemic strokes) as compared to 25/157 among the controls, who received ICI alone (14 DVT, 3 MI, 7 PE, one ischemic stroke). The median time to event was not different between the two groups (126 [98–260] days vs. 145 [28–205] days, P=0.47).
Conclusion
We found that among 157 patients who received a combination of ICI and VEGF-targeted therapy and 157 matched control patients who only received ICI therapy, the risk for cardiovascular events was not different between the two groups.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding.
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Affiliation(s)
- Z Drobni
- Semmelweis University , Budapest , Hungary
| | - J Gong
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - V Raghu
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - A Zafar
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - C Gongora
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - T Quinaglia
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - G Suero-Abreu
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - H Gilman
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
| | - X Gao
- Massachusetts General Hospital, Division of Oncology and Hematology, Department of Medicine , Boston , United States of America
| | - R Sullivan
- Massachusetts General Hospital, Division of Oncology and Hematology, Department of Medicine , Boston , United States of America
| | - B Merkely
- Semmelweis University , Budapest , Hungary
| | - K Reynolds
- Massachusetts General Hospital, Division of Oncology and Hematology, Department of Medicine , Boston , United States of America
| | - T Neilan
- Mass General Hopital (MGH), Cardiovascular Imaging Research Center (CIRC), Department of Radiology and Division of Cardiology , Boston , United States of America
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Sinclair P, Longyear J, Reynolds K, Finnie AA, Brackley CA, Carballo-Pacheco M, Allen RJ. A computational model for microbial colonization of an antifouling surface. Front Microbiol 2022; 13:920014. [PMID: 36238597 PMCID: PMC9551280 DOI: 10.3389/fmicb.2022.920014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Abstract
Biofouling of marine surfaces such as ship hulls is a major industrial problem. Antifouling (AF) paints delay the onset of biofouling by releasing biocidal chemicals. We present a computational model for microbial colonization of a biocide-releasing AF surface. Our model accounts for random arrival from the ocean of microorganisms with different biocide resistance levels, biocide-dependent proliferation or killing, and a transition to a biofilm state. Our computer simulations support a picture in which biocide-resistant microorganisms initially form a loosely attached layer that eventually transitions to a growing biofilm. Once the growing biofilm is established, immigrating microorganisms are shielded from the biocide, allowing more biocide-susceptible strains to proliferate. In our model, colonization of the AF surface is highly stochastic. The waiting time before the biofilm establishes is exponentially distributed, suggesting a Poisson process. The waiting time depends exponentially on both the concentration of biocide at the surface and the rate of arrival of resistant microorganisms from the ocean. Taken together our results suggest that biofouling of AF surfaces may be intrinsically stochastic and hence unpredictable, but immigration of more biocide-resistant species, as well as the biological transition to biofilm physiology, may be important factors controlling the time to biofilm establishment.
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Affiliation(s)
- Patrick Sinclair
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
| | - Jennifer Longyear
- Marine, Protective and Yacht Coatings, International Paint Ltd, AkzoNobel, Gateshead, United Kingdom
| | - Kevin Reynolds
- Marine, Protective and Yacht Coatings, International Paint Ltd, AkzoNobel, Gateshead, United Kingdom
| | - Alistair A. Finnie
- Marine, Protective and Yacht Coatings, International Paint Ltd, AkzoNobel, Gateshead, United Kingdom
| | - Chris A. Brackley
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Rosalind J. Allen
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
- Theoretical Microbial Ecology, Institute of Microbiology, Faculty of Biological Sciences, Friedrich-Schiller University Jena, Jena, Germany
- *Correspondence: Rosalind J. Allen
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Dawe D, Rittberg R, Bucher O, Galloway K, Syed I, Moldaver D, Reynolds K, Paul J, Harlos C, Banerji S. 1547P Predictors of short-, medium-, and long-term survival with limited stage small cell lung cancer in the real-world. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1641] [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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Asdourian M, Shah N, Jacoby T, Reynolds K, Chen S. LB925 Bullous pemphigoid associated with immune checkpoint inhibitor therapy: A systematic review of the literature. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.943] [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: 10/17/2022]
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Tang K, Tiu B, Wan G, Zhang S, Nguyen N, Leung B, Gusev A, Reynolds K, Kwatra S, Semenov Y. 214 Pre-existing cutaneous autoimmune disease may improve survival in patients treated with anti-PD-1 or anti-PD-L1 therapy: A population level cohort study. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.221] [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]
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Asdourian M, Shah N, Jacoby T, Semenov Y, Thompson L, Reynolds K, Chen S. LB927 Evaluating patterns of co-occurrence between cutaneous and non-cutaneous immune-related adverse events among cancer patients after immune checkpoint blockade. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.945] [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: 10/17/2022]
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8
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Jacoby T, Shah N, Asdourian M, LeBoeuf N, Semenov Y, Thompson L, Reynolds K, Chen S. LB874 History of autoimmune disease associated with an increased risk of cutaneous immune related adverse events among patients with advanced cancer. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.889] [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: 11/27/2022]
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9
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The ACMT ToxIC Snakebite Study Group, Lavonas E, Dalton A, Olson R, Rapp-Olsson M, Reynolds K, Ruha AM, Campleman S, Aldy K, Dart R. 76 Most Rattlesnake Envenomation Patients Receive Multiple Doses of Antivenom. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.085] [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]
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10
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Chang M, Otto T, Jacoby T, Thompson L, Reynolds K, Chen S. LB743 Cutaneous immune-related adverse events are undertreated in advanced cancer patients. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.07.028] [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: 11/29/2022]
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11
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Larkin P, Zhou X, Liu Q, Reynolds K, Vanhercke T, Ral J, Li Z, Wu X, Yu R, Luo J, Newberry M, Howitt C. A transcriptional journey from sucrose to endosperm oil bodies in triple transgene oily wheat grain. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103268] [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: 10/21/2022]
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Sivaratnam C, Devenish B, Howells K, Chellew T, Reynolds K, Rinehart N. Risk factors for mental health difficulties in parents of children with cerebral palsy: a systematic review and meta-analysis. CLIN PSYCHOL-UK 2021. [DOI: 10.1080/13284207.2020.1829945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- C. Sivaratnam
- Deakin Child Study Centre, School of Psychology, Faculty of Health, Deakin University, Geelong, Victoria, Australia
| | - B. Devenish
- Deakin Child Study Centre, School of Psychology, Faculty of Health, Deakin University, Geelong, Victoria, Australia
| | - K. Howells
- Deakin Child Study Centre, School of Psychology, Faculty of Health, Deakin University, Geelong, Victoria, Australia
| | - T. Chellew
- Deakin Child Study Centre, School of Psychology, Faculty of Health, Deakin University, Geelong, Victoria, Australia
| | - K. Reynolds
- Kids Plus Foundation, Highton, Victoria, Australia
| | - N. Rinehart
- Deakin Child Study Centre, School of Psychology, Faculty of Health, Deakin University, Geelong, Victoria, Australia
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Wongvibulsin S, Pahalyants V, Kalinich M, Murphy W, Yu K, Wang F, Chen S, Reynolds K, Kwatra S, Semenov Y. 379 Epidemiology and risk factors for the development of cutaneous toxicities in patients treated with immune checkpoint inhibitors: A United States population-level analysis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jain A, Jain R, Nugent Z, Davidson D, Solati Z, Restall G, Reynolds K, Shafer L, Singh H. A99 OPTIMIZING COLONOSCOPY PROCEDURES AND REDUCING PATIENT ANXIETY THROUGH RECENTLY DEVELOPED ONLINE INFORMATION RESOURCES. J Can Assoc Gastroenterol 2021. [DOI: 10.1093/jcag/gwab002.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Invasive medical procedures such as colonoscopies are known to cause psychological distress and anxiety. Patient anxiety leads to reduce patient compliance for colonoscopy and increased adverse effects. Patient education prior to colonoscopy has previously been shown to have positive effects on outcomes and experience. Based on patient and provider input, we have developed easy to read written materials and easy to follow video materials, which other patients have rated highly. These, along with other materials, are embedded on Mycolonoscopy.ca. Mycolonoscopy.ca is a website that provides online information access for patients regarding preparation and peri-procedural expectations. Information about accessing the website is provided with appointment materials (which includes information about split-dose versus one day bowel preparation, giving patients the option between the two) mailed to all patients undergoing outpatient colonoscopy in Winnipeg.
Aims
(1) To evaluate the current use of mycolonoscopy.ca among patients undergoing colonoscopy (2) To determine whether there is an association between visitation to the website and patient outcomes such as reduction in procedural anxiety, bowel preparation tolerance/compliance, and bowel preparation score.
Methods
A paper-based survey was given out to patients at their colonoscopy appointments. Univariate and multivariate logistic regression analyses was performed to determine the factors associated with website visitation and association with procedural anxiety, bowel preparation compliance and bowel preparation scores.
Results
A total of 593 participants were given the surveys, of which 506 were completed. 17.4% of participants had visited the website prior to their colonoscopy. Visitors to mycolonoscopy.ca and those that had heard of the website were more likely to consume a split-dose bowel preparation (63.9% and 68.2% respectively) compared with non-visitors (52.5%) (p=0.0062). Individuals who consumed split-dose bowel preparation had a median Boston bowel preparation score of 9, compared with a score of 7 for individuals who used other forms of preparation (p<0.0001). 31.3% of website visitors were very or extremely worried about their colonoscopy compared with 17.9% of non-visitors. 76.6% of individuals agreed or strongly agreed that visiting the website helped them prepare for their colonoscopy and 69.7% who visited the website agreed or strongly agreed that it helped to reduce their stress/anxiety for the procedure as well.
Conclusions
Our study suggests that use of an informative online platform such as mycolonoscopy.ca can help to improve patient education prior to colonoscopy, reduce anxiety and stress surrounding the procedure, and improve bowel preparation compliance and bowel cleansing score.
Funding Agencies
CAG
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Affiliation(s)
- A Jain
- University of Manitoba, Winnipeg, MB, Canada
| | - R Jain
- University of Manitoba, Winnipeg, MB, Canada
| | - Z Nugent
- University of Manitoba, Winnipeg, MB, Canada
| | - D Davidson
- University of Manitoba, Winnipeg, MB, Canada
| | - Z Solati
- University of Manitoba, Winnipeg, MB, Canada
| | - G Restall
- University of Manitoba, Winnipeg, MB, Canada
| | - K Reynolds
- University of Manitoba, Winnipeg, MB, Canada
| | - L Shafer
- University of Manitoba, Winnipeg, MB, Canada
| | - H Singh
- University of Manitoba, Winnipeg, MB, Canada
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Ching KH, Berg K, Reynolds K, Pedersen D, Macias A, Abdiche YN, Harriman WD, Leighton PA. Common light chain chickens produce human antibodies of high affinity and broad epitope coverage for the engineering of bispecifics. MAbs 2021; 13:1862451. [PMID: 33491549 PMCID: PMC7849766 DOI: 10.1080/19420862.2020.1862451] [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] [Indexed: 01/07/2023] Open
Abstract
Bispecific antibodies are an important and growing segment in antibody therapeutics, particularly in the immuno-oncology space. Manufacturing of a bispecific antibody with two different heavy chains is greatly simplified if the light chains can be the same for both arms of the antibody. Here, we introduce a strain of common light chain chickens, called OmniClic®, that produces antibody repertoires largely devoid of light chain diversity. The antibody repertoire in these chickens is composed of diverse human heavy chain variable regions capable of high-affinity antigen-specific binding and broad epitope diversity when paired with the germline human kappa light chain. OmniClic birds can be used in immunization campaigns for discovery of human heavy chains to different targets. Subsequent pairing of the heavy chain with a germline human kappa light chain serves to facilitate bispecific antibody production by increasing the efficiency of correct pairing. Abbreviations: AID: activation-induced cytidine deaminase; bsAb: bispecific antibody; CDR: complementarity-determining region; CL: light chain constant region; CmLC: common light chain; D: diversity region; ELISA: enzyme-linked immunosorbent assay; FACS: fluorescence-activated cell sorting; Fc: fragment crystallizable; FcRn: neonatal Fc receptor; FR: framework region; GEM: gel-encapsulated microenvironment; Ig: immunoglobulin; IMGT: the international ImMunoGeneTics information system®; J: joining region; KO: knockout; mAb: monoclonal antibody; NGS: next-generation sequencing; PBS: phosphate-buffered saline; PCR: polymerase chain reaction; PGC: primordial germ cell; PGRN: progranulin; TCR: T cell receptor; V: variable region; VK: kappa light chain variable region; VL: light chain variable region; VH: heavy chain variable region
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Affiliation(s)
- Kathryn H Ching
- Department of Research and Development, Ligand Pharmaceuticals, Inc ., Emeryville, CA, USA
| | - Kimberley Berg
- Department of Research and Development, Ligand Pharmaceuticals, Inc ., Emeryville, CA, USA.,Department of Molecular and Cellular Biology, Harvard University , Cambridge, MA, USA
| | - Kevin Reynolds
- Department of Research and Development, Ligand Pharmaceuticals, Inc ., Emeryville, CA, USA
| | - Darlene Pedersen
- Department of Research and Development, Ligand Pharmaceuticals, Inc ., Emeryville, CA, USA
| | - Alba Macias
- Department of Structural Biology, Vernalis , Cambridge, UK
| | - Yasmina N Abdiche
- Department of Research and Development, Carterra, Inc. Salt LakeCity, USA(Currently at ImmunoPrecise Antibodies , Fargo, UT, USA
| | - William D Harriman
- Department of Research and Development, Ligand Pharmaceuticals, Inc ., Emeryville, CA, USA
| | - Philip A Leighton
- Department of Research and Development, Ligand Pharmaceuticals, Inc ., Emeryville, CA, USA
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Surman T, O'Rourke D, Finnie J, Reynolds K, Edwards J, Worthington M. M26 How Does the Histology of the Aortic Root and Ascending Aorta Affect Aortic Aneurysm Progression and Surgical Repair? Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Bhat T, Herbosa C, Hodges W, Kwatra S, Reynolds K, Chen D, Cornelius L, Semenov Y. 392 Temporal trends in the incidence of metastatic melanoma and utilization of immunotherapy in the United States. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Buckanovich RJ, Chan D, Shank J, Griffith K, Fan H, Szulawski R, Yang K, Reynolds K, Johnston C, McLean K, Uppal S, Liu R, Cabrera L, Taylor S, Shen H, Mehta G, Coffman L. Abstract A07: A phase II study of metformin therapy in ovarian cancer with translational endpoints. Clin Cancer Res 2020. [DOI: 10.1158/1557-3265.ovca19-a07] [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
Epidemiologic studies suggest that metformin can improve outcomes for patients with ovarian cancer. Preclinical studies suggest metformin may work in part via effects on cancer stem-like cells (CSCs) to maintain platinum sensitivity. We therefore performed a phase II clinical trial evaluating adjuvant metformin therapy in nondiabetic patients with advanced-stage epithelial ovarian cancer (EOC). The primary aims were translational studies evaluating the impact of metformin on CSC and chemotherapy resistance. Secondary aims included progression-free and overall survival. Thirty-eight patients with confirmed stage IIC (n=1)/III (n=25)/IV (n=12) EOC were treated with either (i) neoadjuvant metformin followed by primary debulking surgery and adjuvant chemotherapy + metformin, or (ii) three cycles of neoadjuvant chemotherapy and metformin, followed by interval debulking surgery, and adjuvant chemotherapy + metformin. Thirty-two patients (84%) completed six cycles metformin + chemotherapy. Metformin was well tolerated with one grade III/IV treatment-related adverse event (3%). Median PFS was 18.0 months (95% CI 14.0-21.6). Median OS was surprisingly long at 57.9 months (95% CI 28.0 – not estimable). For patients with recurred platinum sensitive disease, response to second-line therapy was 85%. Translational studies comparing metformin-treated tumors and historical controls found that metformin-treated tumors had a 2.6-fold decrease in ALDH+/CD133+ CSC (p<0.0001). Consistent with this, metformin-treated tumor cells (i) had an increased sensitivity to cisplatin in vitro, (ii) maintained cisplatin sensitivity over time (p<0.001), and (iii) demonstrated reduced ability to amplify CSC with serial passages (p<0.001). To understand the mechanism of metformin-induced maintenance of platinum response, we evaluated tumor cells and carcinoma-associated mesenchymal stem cells (CA-MSC), cells in the TME we previously reported could increase “stemness” and chemotherapy resistance. While we could not identify significant changes in bulk tumor cells, analysis of DNA methylation in CA-MSC demonstrated metformin treatment resulted in an epigenetic shift. Suggesting CA-MSC alteration drives metformin impact, compared to control CA-MSC, CA-MSC from metformin-treated patients were unable to drive chemotherapy resistance ex vivo. In conclusion, this is the first prospective study of metformin in EOC patients. Metformin therapy was associated with better than expected overall survival, reduction in CSC number, and epigenetic modification of cells in the TME. This was associated with maintenance of platinum sensitivity in vitro and could explain the better than expected median overall survival. This work supports the use of metformin in phase III studies.
Citation Format: Ronald J. Buckanovich, Daniel Chan, Jessica Shank, Kent Griffith, Huihui Fan, Robert Szulawski, Kun Yang, Kevin Reynolds, Carolyn Johnston, Karen McLean, Shitanshu Uppal, Rebecca Liu, Laura Cabrera, Sarah Taylor, Hui Shen, Geeta Mehta, Lan Coffman. A phase II study of metformin therapy in ovarian cancer with translational endpoints [abstract]. In: Proceedings of the AACR Special Conference on Advances in Ovarian Cancer Research; 2019 Sep 13-16, 2019; Atlanta, GA. Philadelphia (PA): AACR; Clin Cancer Res 2020;26(13_Suppl):Abstract nr A07.
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Affiliation(s)
| | | | | | | | | | | | - Kun Yang
- 3University of Michigan, Ann Arbor, MI,
| | | | | | | | | | | | | | | | - Hui Shen
- 4Van-Andel Institute, Grand Rapids, MI
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Mills WR, Sender S, Lichtefeld J, Romano N, Reynolds K, Price M, Phipps J, White L, Howard S, Poltavski D, Barnes R. Supporting individuals with intellectual and developmental disability during the first 100 days of the COVID-19 outbreak in the USA. J Intellect Disabil Res 2020; 64:489-496. [PMID: 32490559 PMCID: PMC7300850 DOI: 10.1111/jir.12740] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 04/29/2020] [Revised: 05/07/2020] [Accepted: 05/11/2020] [Indexed: 05/28/2023]
Abstract
BACKGROUND It is unknown how the novel Coronavirus SARS-CoV-2, the cause of the current acute respiratory illness COVID-19 pandemic that has infected millions of people, affects people with intellectual and developmental disability (IDD). The aim of this study is to describe how individuals with IDD have been affected in the first 100 days of the COVID-19 pandemic. METHODS Shortly after the first COVID-19 case was reported in the USA, our organisation, which provides continuous support for over 11 000 individuals with IDD, assembled an outbreak committee composed of senior leaders from across the health care organisation. The committee led the development and deployment of a comprehensive COVID-19 prevention and suppression strategy, utilising current evidence-based practice, while surveilling the global and local situation daily. We implemented enhanced infection control procedures across 2400 homes, which were communicated to our employees using multi-faceted channels including an electronic resource library, mobile and web applications, paper postings in locations, live webinars and direct mail. Using custom-built software applications enabling us to track patient, client and employee cases and exposures, we leveraged current public health recommendations to identify cases and to suppress transmission, which included the use of personal protective equipment. A COVID-19 case was defined as a positive nucleic acid test for SARS-CoV-2 RNA. RESULTS In the 100-day period between 20 January 2020 and 30 April 2020, we provided continuous support for 11 540 individuals with IDD. Sixty-four per cent of the individuals were in residential, community settings, and 36% were in intermediate care facilities. The average age of the cohort was 46 ± 12 years, and 60% were male. One hundred twenty-two individuals with IDD were placed in quarantine for exhibiting symptoms and signs of acute infection such as fever or cough. Sixty-six individuals tested positive for SARS-CoV-2, and their average age was 50. The positive individuals were located in 30 different homes (1.3% of total) across 14 states. Fifteen homes have had single cases, and 15 have had more than one case. Fifteen COVID-19-positive individuals were hospitalised. As of 30 April, seven of the individuals hospitalised have been discharged back to home and are recovering. Five remain hospitalised, with three improving and two remaining in intensive care and on mechanical ventilation. There have been three deaths. We found that among COVID-19-positive individuals with IDD, a higher number of chronic medical conditions and male sex were characteristics associated with a greater likelihood of hospitalisation. CONCLUSIONS In the first 100 days of the COVID-19 outbreak in the USA, we observed that people with IDD living in congregate care settings can benefit from a coordinated approach to infection control, case identification and cohorting, as evidenced by the low relative case rate reported. Male individuals with higher numbers of chronic medical conditions were more likely to be hospitalised, while most younger, less chronically ill individuals recovered spontaneously at home.
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Affiliation(s)
| | - S. Sender
- BrightSpring Health ServicesLouisvilleKYUSA
| | | | - N. Romano
- BrightSpring Health ServicesLouisvilleKYUSA
| | | | - M. Price
- BrightSpring Health ServicesLouisvilleKYUSA
| | - J. Phipps
- BrightSpring Health ServicesLouisvilleKYUSA
| | - L. White
- BrightSpring Health ServicesLouisvilleKYUSA
| | - S. Howard
- BrightSpring Health ServicesLouisvilleKYUSA
| | - D. Poltavski
- BrightSpring Health ServicesLouisvilleKYUSA
- University of North DakotaGrand ForksNDUSA
| | - R. Barnes
- BrightSpring Health ServicesLouisvilleKYUSA
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King J, Bhat S, Heath LJ, Derington CG, Yu Z, Clark NP, Witt DM, Reynolds K, Lang DT, Xu S, Bellows BK. P5239Cost-effectiveness of direct oral anticoagulants for cancer-associated venous thromboembolism. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Direct oral anticoagulants (DOACs) are at least as effective as low-molecular weight heparins (LMWH) at preventing recurrence after cancer-associated venous thromboembolism (CA-VTE). DOACs are also oral and far less costly, but they may confer a higher bleeding risk than LMWH.
Purpose
To estimate the cost-effectiveness of DOACs and LMWHs for CA-VTE.
Methods
We developed a health state transition model to estimate recurrent VTE, bleeding events, quality-adjusted life years (QALY), and direct healthcare costs (2018 United States dollars) associated with DOACs vs. LMWH use. The model had four states: (1) long-term anticoagulation (first 3 months after VTE), (2) extended anticoagulation (more than 3 months after VTE), (3) off anticoagulants, and (4) death. We used a United States healthcare sector perspective, 3-month cycle length, and 1-year time horizon. Event probabilities were derived from the Hokusai Cancer VTE trial and other literature. Event and medication costs were obtained from national sources. We used a threshold of less than $50,000 per QALY gained to define cost-effectiveness.
Results
Compared to LMWH, DOACs were less costly (mean costs: $8,477 vs. $33,917 per year) and similarly effective (mean QALY: 0.616 vs. 0.622). The incremental cost-effectiveness ratio was $4,479,374 per QALY gained with LMWH, indicating that DOACs are cost-effective (Table 1). In threshold analyses, LMWH therapy only became cost-effective when DOAC recurrent VTE risk increased to at least 72% (relative risk vs. LMWH, 6.19) or DOAC clinically relevant bleeding increased to at least 39% (relative risk vs. LMWH, 10.09).
Scenarios Recurrent VTE, % Major bleed, % Mean difference DOAC − LMW ICER DOAC LMWH Relative Risk DOAC LMWH Relative Risk Cost QALY Base case 8.1 11.6 0.71 6.8 4.0 1.75 −$25,440 (−26,496, −24,274) −0.006 (−0.019, 0.008) $4,479,374 DOAC outcome rate threshold at which LMWH becomes cost-effective* Recurrent VTE 71.5 11.7 6.19 – – – −$6,064 (−7,534, −4,627) −0.121 (−0.136, −0.108) $49,886 Major Bleed – – – 38.9 4.0 10.09 −$2,192 (−3,400, −704) −0.044 (−0.056, −0.030) $49,878 DOAC = direct oral anticoagulant, ICER = incremental cost-effectiveness ratio, LMWH = low-molecular-weight heparin, VTE = venous thromboembolism. Values are mean (95% Uncertainty Interval). Uncertainty was derived from 1,000 stochastic model iterations. *Represents the minimum increased risk with DOAC that would result in LMWH achieving an ICER <$50K per QALY gained.
Conclusion
In this simulation study, DOACs were a cost-effective oral alternative to LMWH for the treatment of CA-VTE. For LMWH to be cost-effective, DOAC event rates needed to be far higher than what is likely to be observed in clinical practice.
Acknowledgement/Funding
Agency for Health Research and Quality R18HS026156
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Affiliation(s)
- J King
- University of Utah, Salt Lake City, United States of America
| | - S Bhat
- Boston Medical Center, Boston, United States of America
| | - L J Heath
- University of Utah, Salt Lake City, United States of America
| | - C G Derington
- University of Colorado, Aurora, United States of America
| | - Z Yu
- University of Utah, Salt Lake City, United States of America
| | - N P Clark
- Kaiser Permanente Colorado, Aurora, United States of America
| | - D M Witt
- University of Utah, Salt Lake City, United States of America
| | - K Reynolds
- Kaiser Permanente Southern California, Pasadena, United States of America
| | - D T Lang
- Kaiser Permanente Southern California, Pasadena, United States of America
| | - S Xu
- Kaiser Permanente Colorado, Aurora, United States of America
| | - B K Bellows
- Columbia University Medical Center, New York, United States of America
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21
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Zubiri L, Molina G, Allen I, Reynolds K. Significance of severe immune-related adverse effects (irAE) on patients with advanced tumors treated with immune checkpoint inhibitors being admitted for secondary toxicity: Clinical relevance and next steps. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.129] [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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22
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Bruxvoort K, Slezak J, Hsu J, Reynolds K, Sy L, Jacobsen S. Hepatitis B vaccine and risk of acute myocardial infarction among patients with diabetes. Ann Epidemiol 2019. [DOI: 10.1016/j.annepidem.2019.06.009] [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: 10/26/2022]
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23
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Reynolds K, Spavor M, Brandelli Y, Kwok C, Li Y, Disciglio M, Carlson LE, Schulte F, Anderson R, Grundy P, Giese-Davis J. A comparison of two models of follow-up care for adult survivors of childhood cancer. J Cancer Surviv 2019; 13:547-557. [PMID: 31250352 DOI: 10.1007/s11764-019-00774-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 06/03/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE Few studies have compared follow-up-care models for adult survivors of childhood cancer (ASCCs), though choice of model could impact medical test adherence, and health-related quality of life (QOL). This study compared two follow-up-care models, cancer-center-based versus community-based, for ASCCs in Alberta, Canada, to determine which model would demonstrate greater ASCC adherence to guideline-recommended medical screening tests for late effects, QOL, physical symptoms, and adherence to yearly follow-up. METHODS ASCC discharged to a community model (over 15 years) and those with comparable birth years (1973-1993) currently followed in a cancer center model were recruited via direct contact or multimedia campaign. Chart review identified chemotherapeutic and radiation exposures, and required medical late effect screening tests. ASCCs also completed questionnaires assessing QOL, physical symptoms, and follow-up behavior. RESULTS One hundred fifty-six survivors participated (community (n = 86); cancer center (n = 70)). Primary analysis indicated that cancer center ASCCs guideline-recommended total test adherence percentage (Mdn = 85.4%) was significantly higher than the community model (Mdn = 29.2%, U = 3996.50, p < 0.0001). There was no significant difference in QOL for cancer center ASCCs (M = 83.85, SD = 20.55 versus M = 77.50, SD = 23.94; t (154) = 1.77, p = 0.078) compared to community-based ASCCs. Cancer center-based ASCCs endorsed from 0.4-7.1% fewer physical symptom clusters, and higher adherence to follow-up behavior in comparisons using effect sizes without p values. CONCLUSION This study highlights the cancer center model's superiority for adherence to exposure-based medical late effect screening guidelines, cancer-specific follow-up behaviors, and the reporting of fewer physical complaints in ASCCs. IMPLICATIONS FOR CANCER SURVIVORS ASCCs followed in a cancer center model likely benefit from earlier late-effects detection and opportunities for early intervention.
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Affiliation(s)
- K Reynolds
- Long Term Survivor's Clinic, Alberta Children's Hospital, University of Calgary, 2888 Shaganappi Trail NW, Calgary, Alberta, T3B 6A8, Canada
- Department of Family Medicine, University of Calgary, Calgary, Alberta, Canada
| | - M Spavor
- Northern Alberta Childhood Cancer Survivor Program, 4E2, Stollery Children's Hospital, 8440 112th Street, Edmonton, Alberta, T6G 2B7, Canada.
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, University of Alberta, Edmonton Clinic Health Academy, 11405 87th Avenue, Edmonton, Alberta, T6G 1C9, Canada.
| | - Y Brandelli
- Department of Oncology, Division of Psychosocial Oncology, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Psychosocial Resources, Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - C Kwok
- Department of Oncology, Division of Psychosocial Oncology, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Psychosocial Resources, Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | - Y Li
- Department of Oncology, Division of Psychosocial Oncology, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Psychosocial Resources, Tom Baker Cancer Centre, Calgary, Alberta, Canada
- Department of Psychosocial Resources, Alberta Health Services Cancer Care-Holy Cross Site, 2202 2nd Street SW, Calgary, Alberta, T2S 3C1, Canada
| | - M Disciglio
- Northern Alberta Childhood Cancer Survivor Program, 4E2, Stollery Children's Hospital, 8440 112th Street, Edmonton, Alberta, T6G 2B7, Canada
| | - L E Carlson
- Department of Oncology, Division of Psychosocial Oncology, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Psychosocial Resources, Tom Baker Cancer Centre, Calgary, Alberta, Canada
- Department of Psychosocial Resources, Alberta Health Services Cancer Care-Holy Cross Site, 2202 2nd Street SW, Calgary, Alberta, T2S 3C1, Canada
| | - F Schulte
- Department of Oncology, Division of Psychosocial Oncology, University of Calgary, Calgary, Alberta, Canada
- Division of Medical Science, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Psychology, Faculty of Arts, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital, Calgary, Alberta, Canada
| | - R Anderson
- Alberta Children's Hospital, Calgary, Alberta, Canada
- Department of Oncology, 2888 Shaganappi Trail NW, Calgary, Alberta, T3B 6A8, Canada
| | - P Grundy
- Northern Alberta Childhood Cancer Survivor Program, 4E2, Stollery Children's Hospital, 8440 112th Street, Edmonton, Alberta, T6G 2B7, Canada
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, University of Alberta, Edmonton Clinic Health Academy, 11405 87th Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - J Giese-Davis
- Department of Oncology, Division of Psychosocial Oncology, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Psychosocial Resources, Tom Baker Cancer Centre, Calgary, Alberta, Canada
- Department of Psychosocial Resources, Alberta Health Services Cancer Care-Holy Cross Site, 2202 2nd Street SW, Calgary, Alberta, T2S 3C1, Canada
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Garber JE, Bernstein MT, Walker J, Faucher P, Reynolds K, Singh H. A213 VIDEO EDUCATIONAL MATERIAL FOR PATIENTS PREPARING FOR COLONOSCOPY. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J E Garber
- Rady Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | | | - J Walker
- Rady Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - P Faucher
- University of Manitoba, Winnipeg, MB, Canada
| | - K Reynolds
- University of Manitoba, Winnipeg, MB, Canada
| | - H Singh
- Rady Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB, Canada
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25
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Surman T, Worthington M, Edwards J, Reynolds K, O’Rourke D. A Unique Three-Dimensional Aortic Model to Risk Stratify Aortic Pathology. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.02.043] [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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26
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Whitson H, Potter G, Davis S, Plassman B, Sloane R, Reynolds K, Schmader K, Welsh-Bohmer K. DIFFERENCE IN BRAIN ACTIVATION WITH HIGHER TASK DEMAND IN ASYMPTOMATIC ADULTS WITH AND WITHOUT AN APOE E4 ALLELE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | - S Davis
- Duke University Medical Center
| | - B Plassman
- Duke University - Joseph and Kathleen Bryan Alzheimer’s Disease Research Center
| | - R Sloane
- Center for the Study of Aging, Duke University Medical Center
| | | | - K Schmader
- Duke University and GRECC-Durham VA Medical Centers
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27
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Gereige J, Hysell K, Reynolds K, Guenechea-Sola M. AN UNUSUAL INFECTIOUS CAUSE OF ACUTE URTICARIA. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.292] [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: 11/16/2022]
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28
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Tisminetzky M, Gurwitz J, Fan D, Reynolds K, Smith D, Sung S, Murphy T, Go A. MULTIMORBIDITY BURDEN AND ADVERSE OUTCOMES IN OLDER ADULTS WITH HEART FAILURE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - J Gurwitz
- Meyers Primary Care Institute, a joint endeavor of University of Massachusetts Medical School, Reliant Medical Group, and Fallon Health, Worcester, Massachusetts
| | - D Fan
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - K Reynolds
- Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA
| | - D Smith
- Center for Health Research, Kaiser Permanente Northwest, Portland Oregon
| | - S Sung
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - T Murphy
- Department of Internal Medicine, Section of Geriatrics, Yale University School of Medicine, New Haven, CT, USA
| | - A Go
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
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Duggan R, Godwin H, Miller M, Anstey K, Reynolds K, Hennessey S, Osseiran-Moisson R. An exploration of Western Australian rural midwives’ decision to rescind their midwifery registration. Women Birth 2018. [DOI: 10.1016/j.wombi.2018.08.066] [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: 10/28/2022]
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30
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Baker N, Furlong K, Consiglio D, Lankewicz Holbert G, Milberg C, Reynolds K, Wilson J. Demonstrating the value of “library as place” with the MISO Survey. PMM 2018. [DOI: 10.1108/pmm-01-2018-0004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
The purpose of this paper is twofold. It first examines cross-institutional benchmark data about “library as place” from 99 US schools in the Measuring Information Service Outcomes (MISO) Survey (www.misosurvey.org). The data demonstrate the value of “library as place” to students in particular. Second, the paper shares case studies of how two college libraries made MISO Survey “library as place” data actionable. Lafayette College (Easton, Pennsylvania) analyzed local MISO Survey data after a renovation to validate return on investment. Earlham College (Richmond, Indiana) analyzed MISO Survey data to help secure a science library renovation and to justify an architectural study for its main library.
Design/methodology/approach
The paper begins with an analysis of “library as place” using aggregate benchmarks derived from US college and university respondents between 2012 and 2015. Specifically, the paper contrasts student and faculty perceptions of “library as place” via national benchmarks about: library services importance, satisfaction, and use (three benchmarks); hybrid online/“place-based” library services importance, satisfaction, and use (three benchmarks). Pivoting from higher education to individual, local perspectives, two case studies reveal how academic libraries used MISO Survey findings to demonstrate the value of “library as place” for renovation purposes.
Findings
The findings include that undergraduates make more frequent use than faculty of place-based services such as reference, equipment loans, and physical course reserves. Undergraduates also find most of these services more important than faculty do. Faculty makes generally more frequent use than undergraduates of online services such as library databases and the catalog. They find that these services to be more important than undergraduates do. Faculty and undergraduates use newer library discovery systems with equal frequency and find them to be equally important. Undergraduates find comfortable library spaces to be very important, and faculty considers them to be only a bit less important.
Originality/value
This is the first paper using MISO Survey data to focus on the importance and satisfaction of place-based library services involving cross-institutional comparisons for students and faculty. Previously published research using MISO Survey data have compared the use of place-based library services. This is also the first paper to offer case studies about how institutions use MISO Survey data to demonstrate the value of “library as place.”
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Racine NM, Khu M, Reynolds K, Guilcher GMT, Schulte FSM. Quality of life in pediatric cancer survivors: contributions of parental distress and psychosocial family risk. ACTA ACUST UNITED AC 2018; 25:41-48. [PMID: 29507482 DOI: 10.3747/co.25.3768] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Pediatric survivors of childhood cancer are at increased risk of poor quality of life and social-emotional outcomes following treatment. The relationship between parent psychological distress and child adjustment in pediatric cancer survivors has been well established. However, limited research has examined the factors that may buffer this association. The current study examined the associations between psychosocial family risk factors, parental psychological distress, and health-related quality of life (hrql) in pediatric cancer survivors. Methods Fifty-two pediatric cancer survivors (34 males, 18 females, mean age = 11.92) and their parents were recruited from a long-term cancer survivor clinic. Children and their parents who consented to participate completed the Pediatric Quality of Life Inventory 4.0. Parents completed a demographic information form, the Psychosocial Assessment Tool (pat 2.0) and the Brief Symptom Inventory (bsi). The Intensity of Treatment Rating (itr-3) was evaluated by the research team. Results Multiple regression analyses revealed that parental psychological distress negatively predicted parent-reported hrql, while treatment intensity, gender, and psychosocial risk negatively predicted parent and child-reported hrql. Psychosocial risk moderated the association between parent psychological distress and parent-reported child hrql (p = 0.03), whereby parents with high psychological distress but low levels of psychosocial risk reported their children to have higher hrql. Conclusion Low levels of family psychosocial risk buffer the impact of parent psychological distress on child hrql in pediatric cancer survivors. The findings highlight the importance of identifying parents and families with at-risk psychological distress and psychosocial risk in order to provide targeted support interventions to mitigate the impact on hrql.
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Affiliation(s)
- N M Racine
- Department of Psychology, University of Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, AB, Canada
| | - M Khu
- Hematology, Oncology, Transplant Program, Alberta Children's Hospital, AB, Canada
| | - K Reynolds
- Long Term Survivor Clinic, Alberta Children's Hospital, AB, Canada; and
| | - G M T Guilcher
- Hematology, Oncology, Transplant Program, Alberta Children's Hospital, AB, Canada.,Alberta Children's Hospital Research Institute, AB, Canada
| | - F S M Schulte
- Hematology, Oncology, Transplant Program, Alberta Children's Hospital, AB, Canada.,Alberta Children's Hospital Research Institute, AB, Canada.,Long Term Survivor Clinic, Alberta Children's Hospital, AB, Canada; and.,Department of Oncology, Division of Psychosocial Oncology, Cumming School of Medicine, University of Calgary, AB, Canada
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Dharmawardana N, Ruthenbeck G, Woods C, Elmiyeh B, Diment L, Ooi EH, Reynolds K, Carney AS. Validation of virtual-reality-based simulations for endoscopic sinus surgery. Clin Otolaryngol 2016; 40:569-79. [PMID: 25809675 DOI: 10.1111/coa.12414] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND Virtual reality (VR) simulators provide an alternative to real patients for practicing surgical skills but require validation to ensure accuracy. Here, we validate the use of a virtual reality sinus surgery simulator with haptic feedback for training in Otorhinolaryngology - Head & Neck Surgery (OHNS). METHODS Participants were recruited from final-year medical students, interns, resident medical officers (RMOs), OHNS registrars and consultants. All participants completed an online questionnaire after performing four separate simulation tasks. These were then used to assess face, content and construct validity. anova with post hoc correlation was used for statistical analysis. RESULTS The following groups were compared: (i) medical students/interns, (ii) RMOs, (iii) registrars and (iv) consultants. Face validity results had a statistically significant (P < 0.05) difference between the consultant group and others, while there was no significant difference between medical student/intern and RMOs. Variability within groups was not significant. Content validity results based on consultant scoring and comments indicated that the simulations need further development in several areas to be effective for registrar-level teaching. However, students, interns and RMOs indicated that the simulations provide a useful tool for learning OHNS-related anatomy and as an introduction to ENT-specific procedures. CONCLUSIONS The VR simulations have been validated for teaching sinus anatomy and nasendoscopy to medical students, interns and RMOs. However, they require further development before they can be regarded as a valid tool for more advanced surgical training.
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Affiliation(s)
| | - G Ruthenbeck
- Medical Device Research Institute, Flinders University, Adelaide, Australia
| | - C Woods
- Flinders Medical Centre, Adelaide, Australia.,Medical Device Research Institute, Flinders University, Adelaide, Australia
| | - B Elmiyeh
- Flinders Medical Centre, Adelaide, Australia
| | - L Diment
- Medical Device Research Institute, Flinders University, Adelaide, Australia
| | - E H Ooi
- Flinders Medical Centre, Adelaide, Australia.,Medical Device Research Institute, Flinders University, Adelaide, Australia
| | - K Reynolds
- Medical Device Research Institute, Flinders University, Adelaide, Australia
| | - A S Carney
- Flinders Medical Centre, Adelaide, Australia.,Medical Device Research Institute, Flinders University, Adelaide, Australia
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Hu T, Yao L, Reynolds K, Niu T, Li S, Whelton P, He J, Bazzano L. The effects of a low-carbohydrate diet on appetite: A randomized controlled trial. Nutr Metab Cardiovasc Dis 2016; 26:476-488. [PMID: 26803589 PMCID: PMC4873405 DOI: 10.1016/j.numecd.2015.11.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 11/18/2015] [Accepted: 11/23/2015] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS The relationship between dietary macronutrient composition and appetite is controversial. We examined the effects of a year-long low-carbohydrate diet compared to a low-fat diet on appetite-related hormones and self-reported change in appetite. METHODS AND RESULTS A total of 148 adults with a body mass index 30-45 kg/m(2), who were free of diabetes, cardiovascular disease and chronic kidney disease at baseline were randomly assigned to either a low-carbohydrate diet (carbohydrate [excluding dietary fiber]<40 g/day; N = 75) or a low-fat diet (<30% energy from fat, <7% from saturated fat; N = 73). Participants in both groups attended individual and group dietary counseling sessions where they were provided the same behavioral curriculum and advised to maintain baseline levels of physical activity. Appetite and appetite-related hormones were measured at 0, 3, 6 and 12 months of intervention. At 12 months, mean changes (95% CI) in peptide YY were -34.8 pg/mL (-41.0 to -28.6) and in the low-carbohydrate group and -44.2 pg/mL (-50.4 to -38.0) in the low-fat group (net change: 9.54 pg/mL [0.6 to 18.2]; p = 0.036). Approximately 99% of dietary effects on peptide YY are explained by differences in dietary macronutrient content. There was no difference in change in ghrelin or self-reported change in appetite between the groups. CONCLUSIONS A low-fat diet reduced peptide YY more than a low-carbohydrate diet. These findings suggest that satiety may be better preserved on a low-carbohydrate diet, as compared to a low fat diet. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00609271.
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Affiliation(s)
- T Hu
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, SL-18, Suite 2000, New Orleans, LA 70112, USA.
| | - L Yao
- Division of Epidemiology and Community Health, University of Minnesota, 1300 S 2nd St, Suite 300, Minneapolis, MN 55454, USA
| | - K Reynolds
- Department of Research & Evaluation, Kaiser Permanente Southern California, 100 South Los Robles, 2nd Floor, Pasadena, CA 91101, USA
| | - T Niu
- Department of Biostatistics and Bioinformatics, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, SL-18, Suite 2001, New Orleans, LA 70112, USA
| | - S Li
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, SL-18, Suite 2000, New Orleans, LA 70112, USA
| | - P Whelton
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, SL-18, Suite 2000, New Orleans, LA 70112, USA
| | - J He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, SL-18, Suite 2000, New Orleans, LA 70112, USA
| | - L Bazzano
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, SL-18, Suite 2000, New Orleans, LA 70112, USA
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Burnell M, Iyer R, Gentry-Maharaj A, Nordin A, Liston R, Manchanda R, Das N, Gornall R, Beardmore-Gray A, Hillaby K, Leeson S, Linder A, Lopes A, Meechan D, Mould T, Nevin J, Olaitan A, Rufford B, Shanbhag S, Thackeray A, Wood N, Reynolds K, Ryan A, Menon U. Benchmarking of surgical complications in gynaecological oncology: prospective multicentre study. BJOG 2016; 123:2171-2180. [DOI: 10.1111/1471-0528.13994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2015] [Indexed: 11/26/2022]
Affiliation(s)
- M Burnell
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
| | - R Iyer
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
| | - A Gentry-Maharaj
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
| | - A Nordin
- East Kent Gynaecological Oncology Centre; Queen Elizabeth the Queen Mother Hospital; Margate UK
| | - R Liston
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
| | - R Manchanda
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
- Department of Gynaecological Cancer; Barts Cancer Centre; Barts and the London NHS Trust; London UK
| | - N Das
- Department of Gynaecological Cancer; Royal Cornwall Hospitals NHS Trust; Truro UK
| | - R Gornall
- Department of Gynaecological Oncology; Cheltenham General Hospital; Cheltenham UK
| | - A Beardmore-Gray
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
| | - K Hillaby
- Department of Gynaecological Oncology; Cheltenham General Hospital; Cheltenham UK
| | - S Leeson
- Department of Obstetrics and Gynaecology; BetsiCadwaladr University Health Board; Bangor UK
| | - A Linder
- Department of Gynaecological Oncology; The Ipswich Hospital NHS Trust; Ipswich Suffolk UK
| | - A Lopes
- Department of Gynaecological Cancer; Royal Cornwall Hospitals NHS Trust; Truro UK
| | | | - T Mould
- Department of Gynaecological Oncology; University College London Hospital NHS Foundation Trust; London UK
| | - J Nevin
- Pan Birmingham Gynaecological Cancer Centre; Birmingham City Hospital; Birmingham UK
| | - A Olaitan
- Department of Gynaecological Oncology; University College London Hospital NHS Foundation Trust; London UK
| | - B Rufford
- Department of Gynaecological Oncology; The Ipswich Hospital NHS Trust; Ipswich Suffolk UK
| | - S Shanbhag
- Department of Gynaecological Oncology; Glasgow Royal Infirmary; Glasgow UK
| | | | - N Wood
- Department of Gynaecological Oncology; Lancashire Teaching Hospitals NHS Foundation trust; Royal Preston Hospital; Preston UK
| | - K Reynolds
- Department of Gynaecological Cancer; Barts Cancer Centre; Barts and the London NHS Trust; London UK
| | - A Ryan
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
| | - U Menon
- Department of Women's Cancer; Gynaecological Cancer Research Centre; Institute for Women's Health; University College London; London UK
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Harper L, Choleris E, Ervin K, Fureix C, Reynolds K, Walker M, Mason G. Stereotypic mice are aggressed by their cage-mates, and tend to be poor demonstrators in social learning tasks. Anim Welf 2015. [DOI: 10.7120/09627286.24.4.463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sato M, Iwata N, Sasahara S, Ostrov B, Reynolds K, Scalzi L. AB0366 Attitudes of Patients with Rheumatic Disease Undergoing Infusion Therapy in a Multispecialty Infusion Unit. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5417] [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: 11/04/2022]
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Iyer R, Gentry-Maharaj A, Nordin A, Burnell M, Liston R, Manchanda R, Das N, Desai R, Gornall R, Beardmore-Gray A, Nevin J, Hillaby K, Leeson S, Linder A, Lopes A, Meechan D, Mould T, Varkey S, Olaitan A, Rufford B, Ryan A, Shanbhag S, Thackeray A, Wood N, Reynolds K, Menon U. Predictors of complications in gynaecological oncological surgery: a prospective multicentre study (UKGOSOC-UK gynaecological oncology surgical outcomes and complications). Br J Cancer 2014; 112:475-84. [PMID: 25535730 PMCID: PMC4453652 DOI: 10.1038/bjc.2014.630] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/16/2014] [Accepted: 11/30/2014] [Indexed: 12/14/2022] Open
Abstract
Background: There are limited data on surgical outcomes in gynaecological oncology. We report on predictors of complications in a multicentre prospective study. Methods: Data on surgical procedures and resulting complications were contemporaneously recorded on consented patients in 10 participating UK gynaecological cancer centres. Patients were sent follow-up letters to capture any further complications. Post-operative (Post-op) complications were graded (I–V) in increasing severity using the Clavien-Dindo system. Grade I complications were excluded from the analysis. Univariable and multivariable regression was used to identify predictors of complications using all surgery for intra-operative (Intra-op) and only those with both hospital and patient-reported data for Post-op complications. Results: Prospective data were available on 2948 major operations undertaken between April 2010 and February 2012. Median age was 62 years, with 35% obese and 20.4% ASA grade ⩾3. Consultant gynaecological oncologists performed 74.3% of operations. Intra-op complications were reported in 139 of 2948 and Grade II–V Post-op complications in 379 of 1462 surgeries. The predictors of risk were different for Intra-op and Post-op complications. For Intra-op complications, previous abdominal surgery, metabolic/endocrine disorders (excluding diabetes), surgical complexity and final diagnosis were significant in univariable and multivariable regression (P<0.05), with diabetes only in multivariable regression (P=0.006). For Post-op complications, age, comorbidity status, diabetes, surgical approach, duration of surgery, and final diagnosis were significant in both univariable and multivariable regression (P<0.05). Conclusions: This multicentre prospective audit benchmarks the considerable morbidity associated with gynaecological oncology surgery. There are significant patient and surgical factors that influence this risk.
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Affiliation(s)
- R Iyer
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - A Gentry-Maharaj
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - A Nordin
- National Cancer Intelligence Network Gynaecology Clinical Reference Group, 5th Floor, Wellington House, 133-155 Waterloo Road, London SE1 8UG, UK
| | - M Burnell
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - R Liston
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - R Manchanda
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - N Das
- Department of Gynaecological Cancer, Royal Cornwall Hospitals NHS Trust, Truro, Cornwall TR1 3LJ, UK
| | - R Desai
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - R Gornall
- Department of Gynaecological Oncology, Cheltenham General Hospital, Sandford Road, Cheltenham, Gloucestershire GL53 7AN, UK
| | - A Beardmore-Gray
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - J Nevin
- Pan Birmingham Gynaecological Cancer Centre, Birmingham City Hospital, Dudley Road, Birmingham, West Midlands B18 7QH, UK
| | - K Hillaby
- Department of Gynaecological Oncology, Cheltenham General Hospital, Sandford Road, Cheltenham, Gloucestershire GL53 7AN, UK
| | - S Leeson
- Department of Obstetrics and Gynaecology, Betsi Cadwaladr University Health Board, Penrhosgarnedd, Bangor, Gwynedd, North Wales LL57 2PW, UK
| | - A Linder
- Department of Gynaecological Oncology, The Ipswich Hospital NHS Trust, Heath Road, Ipswich, Suffolk IP4 5PD, UK
| | - A Lopes
- Department of Gynaecological Cancer, Royal Cornwall Hospitals NHS Trust, Truro, Cornwall TR1 3LJ, UK
| | - D Meechan
- Trent Cancer Registry, 5 Old Fulwood Road, Sheffield S10 3TG, UK
| | - T Mould
- Department of Gynaecological Oncology, University College London Hospital NHS Foundation Trust, 2nd Floor North, 250 Euston Road, London NW1 2PG, UK
| | - S Varkey
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - A Olaitan
- Department of Gynaecological Oncology, University College London Hospital NHS Foundation Trust, 2nd Floor North, 250 Euston Road, London NW1 2PG, UK
| | - B Rufford
- Department of Gynaecological Oncology, The Ipswich Hospital NHS Trust, Heath Road, Ipswich, Suffolk IP4 5PD, UK
| | - A Ryan
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
| | - S Shanbhag
- Department of Gynaecological Oncology, Glasgow Royal Infirmary, 16 Alexandra Parade, Glasgow G31 2ER, UK
| | - A Thackeray
- Trent Cancer Registry, 5 Old Fulwood Road, Sheffield S10 3TG, UK
| | - N Wood
- Department of Gynaecological Oncology, Lancashire Teaching Hospitals NHS Foundation Trust, Royal Preston Hospital, Sharoe Green Lane, North Fulwood, Preston Lancashire PR2 9HT, UK
| | - K Reynolds
- Department of Gynaecological Cancer, Barts Cancer Centre, Barts and the London NHS Trust, St Bartholomew's Hospital (Barts), West Smithfield, London EC1A 7BE, UK
| | - U Menon
- Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, 1st Floor Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
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Viora L, Graham EM, Mellor DJ, Reynolds K, Simoes PBA, Geraghty TE. Evaluation of a culture-based pathogen identification kit for bacterial causes of bovine mastitis. Vet Rec 2014; 175:89. [PMID: 25013087 DOI: 10.1136/vr.102499] [Citation(s) in RCA: 18] [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] [Indexed: 02/04/2023]
Abstract
Accurate identification of mastitis-causing bacteria supports effective management and can be used to implement selective use of antimicrobials for treatment. The objectives of this study were to compare the results from a culture-based mastitis pathogen detection test kit ('VetoRapid', Vétoquinol) with standard laboratory culture and to evaluate the potential suitability of the test kit to inform a selective treatment programme. Overall 231 quarter milk samples from five UK dairy farms were collected. The sensitivity and specificity of the test kit for the identification of Escherichia coli, Staphylococcus aureus, coagulase-negative staphylococci, Streptococcus uberis and Enterococcus spp. ranged from 17 per cent to 84 per cent and 92 per cent to 98 per cent, respectively. In total, 23 of 68 clinical samples were assigned as meeting the requirement for antimicrobial treatment (Gram-positive organism cultured) according to standard culture results, with the test kit results having sensitivity and specificity of 91 per cent and 78 per cent, respectively. Several occurrences of misidentification are reported, including S. aureus being misidentified as coagulase-negative staphylococci and vice versa. The test kit provides rapid preliminary identification of five common causes of bovine mastitis under UK field conditions and is likely to be suitable for informing selective treatment of clinical mastitis caused by Gram-positive organisms.
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Affiliation(s)
- L Viora
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK
| | - E M Graham
- Infectious Diseases Diagnostic Unit, Veterinary Diagnostic Services, School of Veterinary Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK
| | - D J Mellor
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK
| | - K Reynolds
- Infectious Diseases Diagnostic Unit, Veterinary Diagnostic Services, School of Veterinary Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK
| | - P B A Simoes
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK
| | - T E Geraghty
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow G61 1QH, UK
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An J, Alemao E, Cheetham T, Reynolds K, Kawabata H, Solomon D. SAT0044 The Role of C-Reactive Protein or Erythrocyte Sedimentation Rate in Predicting Cardiovascular Outcomes in Rheumatoid Arthritis: Analysis of Data from US Managed Care Organization. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1742] [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: 11/04/2022]
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Stone R, Burnett A, Hitt W, Reynolds K, O'Brien K, Beard J, O'Brien T. Serine protease matriptase and CA-125 co-testing for ovarian cancer detection. Gynecol Oncol 2014. [DOI: 10.1016/j.ygyno.2014.03.544] [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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Mah JC, Zvaigzne CG, Reynolds K, Flewitt J, Chow K, Thompson RB, Howarth AG, Patton DJ. Magnetic Resonance Imaging for Detection of Early Cardiotoxicity and Skeletal Muscle Abnormalities in Survivors of Childhood Cancer. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.120] [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: 10/26/2022] Open
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Carnwath R, Graham E, Reynolds K, Pollock P. The Antimicrobial Activity of Honey Against Common Equine Wound Isolates. Equine Vet J 2013. [DOI: 10.1111/evj.12145_33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. Carnwath
- Weipers Centre Equine Hospital, School of Veterinary Medicine; University of Glasgow; 464 Bearsden Road; Glasgow; G61 1QH; UK
| | - E.M. Graham
- Weipers Centre Equine Hospital, School of Veterinary Medicine; University of Glasgow; 464 Bearsden Road; Glasgow; G61 1QH; UK
| | - K. Reynolds
- Weipers Centre Equine Hospital, School of Veterinary Medicine; University of Glasgow; 464 Bearsden Road; Glasgow; G61 1QH; UK
| | - P.J. Pollock
- Weipers Centre Equine Hospital, School of Veterinary Medicine; University of Glasgow; 464 Bearsden Road; Glasgow; G61 1QH; UK
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Reynolds K, Muntner P, Cheetham TC, Harrison TN, Morisky DE, Silverman S, Gold DT, Vansomphone SS, Wei R, O'Malley CD. Primary non-adherence to bisphosphonates in an integrated healthcare setting. Osteoporos Int 2013; 24:2509-17. [PMID: 23595561 DOI: 10.1007/s00198-013-2326-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 02/12/2013] [Indexed: 11/29/2022]
Abstract
UNLABELLED We estimated primary non-adherence to oral bisphosphonate medication and examined the factors associated with primary non-adherence. Nearly 30% of women did not pick up their new bisphosphonate within 60 days. Identifying barriers and developing interventions that address patients' needs and concerns at the time a new medication is prescribed are warranted. INTRODUCTION To estimate primary non-adherence to oral bisphosphonate medications using electronic medical record data in a large, integrated healthcare delivery system and to describe patient and prescribing provider factors associated with primary non-adherence. METHODS Women aged 55 years and older enrolled in Kaiser Permanente Southern California (KPSC) with a new prescription for oral bisphosphonates between December 1, 2009 and March 31, 2011 were identified. Primary non-adherence was defined as failure to pick up the new prescription within 60 days of the order date. Multivariable logistic regression models were used to investigate patient factors (demographics, healthcare utilization, and health conditions) and prescribing provider characteristics (demographics, years in practice, and specialty) associated with primary non-adherence. RESULTS We identified 8,454 eligible women with a new bisphosphonate order. Among these women, 2,497 (29.5%) did not pick up their bisphosphonate prescription within 60 days of the order date. In multivariable analyses, older age and emergency department utilization were associated with increased odds of primary non-adherence while prescription medication use and hospitalizations were associated with lower odds of primary non-adherence. Prescribing providers practicing 10 or more years had lower odds of primary non-adherent patients compared with providers practicing less than 10 years. Internal medicine and rheumatology providers had lower odds of primary non-adherent patients than primary care providers. CONCLUSION This study found that nearly one in three women failed to pick up their new bisphosphonate prescription within 60 days. Identifying barriers and developing interventions aimed at reducing the number of primary non-adherent patients to bisphosphonate prescriptions are warranted.
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Affiliation(s)
- K Reynolds
- Department of Research and Evaluation, Kaiser Permanente Southern California, 100 S. Los Robles, 2nd Floor, Pasadena, CA 91101, USA.
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Carnwath R, Graham EM, Reynolds K, Pollock PJ. The antimicrobial activity of honey against common equine wound bacterial isolates. Vet J 2013; 199:110-4. [PMID: 23962613 DOI: 10.1016/j.tvjl.2013.07.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 07/02/2013] [Accepted: 07/04/2013] [Indexed: 01/22/2023]
Abstract
Delayed healing associated with distal limb wounds is a particular problem in equine clinical practice. Recent studies in human beings and other species have demonstrated the beneficial wound healing properties of honey, and medical grade honey dressings are available commercially in equine practice. Equine clinicians are reported to source other non-medical grade honeys for the same purpose. This study aimed to assess the antimicrobial activity of a number of honey types against common equine wound bacterial pathogens. Twenty-nine honey products were sourced, including gamma-irradiated and non-irradiated commercial medical grade honeys, supermarket honeys, and honeys from local beekeepers. To exclude contaminated honeys from the project, all honeys were cultured aerobically for evidence of bacterial contamination. Aerobic bacteria or fungi were recovered from 18 products. The antimicrobial activity of the remaining 11 products was assessed against 10 wound bacteria, recovered from the wounds of horses, including methicillin resistant Staphylococcus aureus and Pseudomonas aeruginosa. Eight products were effective against all 10 bacterial isolates at concentrations varying from <2% to 16% (v/v). Overall, the Scottish Heather Honey was the best performing product, and inhibited the growth of all 10 bacterial isolates at concentrations ranging from <2% to 6% (v/v). Although Manuka has been the most studied honey to date, other sources may have valuable antimicrobial properties. Since some honeys were found to be contaminated with aerobic bacteria or fungi, non-sterile honeys may not be suitable for wound treatment. Further assessment of gamma-irradiated honeys from the best performing honeys would be useful.
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Affiliation(s)
- R Carnwath
- Weipers Centre for Equine Welfare, Division of Large Animal Sciences and Public Health, School of Veterinary Medicine, University of Glasgow, 464 Bearsden Road, G61 1QH Glasgow, Scotland, United Kingdom
| | - E M Graham
- Division of Veterinary Biosciences, School of Veterinary Medicine, University of Glasgow, 464 Bearsden Road, G61 1QH Glasgow, Scotland, United Kingdom
| | - K Reynolds
- Division of Veterinary Biosciences, School of Veterinary Medicine, University of Glasgow, 464 Bearsden Road, G61 1QH Glasgow, Scotland, United Kingdom
| | - P J Pollock
- Weipers Centre for Equine Welfare, Division of Large Animal Sciences and Public Health, School of Veterinary Medicine, University of Glasgow, 464 Bearsden Road, G61 1QH Glasgow, Scotland, United Kingdom.
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Iyer R, Gentry-Maharaj A, Nordin A, Liston R, Burnell M, Das N, Desai R, Gornall R, Beardmore-Gray A, Hillaby K, Leeson S, Linder A, Lopes A, Meechan D, Mould T, Nevin J, Olaitan A, Rufford B, Ryan A, Shanbhag S, Thackeray A, Wood N, Reynolds K, Menon U. Patient-reporting improves estimates of postoperative complication rates: a prospective cohort study in gynaecological oncology. Br J Cancer 2013; 109:623-32. [PMID: 23846170 PMCID: PMC3738134 DOI: 10.1038/bjc.2013.366] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [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: 01/30/2013] [Revised: 06/16/2013] [Accepted: 06/22/2013] [Indexed: 12/04/2022] Open
Abstract
Background: Most studies use hospital data to calculate postoperative complication rates (PCRs). We report on improving PCR estimates through use of patient-reporting. Methods: A prospective cohort study of major surgery performed at 10 UK gynaecological cancer centres was undertaken. Hospitals entered the data contemporaneously into an online database. Patients were sent follow-up letters to capture postoperative complications. Grade II–V (Clavien–Dindo classification) patient-reported postoperative complications were verified from hospital records. Postoperative complication rate was defined as the proportion of surgeries with a Grade II–V postoperative complication. Results: Patient replies were received for 1462 (68%) of 2152 surgeries undertaken between April 2010 and February 2012. Overall, 452 Grade II–V (402 II, 50 III–V) complications were reported in 379 of the 1462 surgeries. This included 172 surgeries with 200 hospital-reported complications and 231 with 280 patient-reported complications. All (100% concordance) 36 Grade III–V and 158 of 280 (56.4% concordance) Grade II patient-reported complications were verified on hospital case-note review. The PCR using hospital-reported data was 11.8% (172 out of 1462; 95% CI 11–14), patient-reported was 15.8% (231 out of 1462; 95% CI 14–17.8), hospital and verified patient-reported was 19.4% (283 out of 1462; 95% CI 17.4–21.4) and all data were 25.9% (379 out of 1462; 95% CI 24–28). After excluding Grade II complications, the hospital and patient verified Grade III–V PCR was 3.3% (48 out of 1462; 95% CI 2.5–4.3). Conclusion: This is the first prospective study of postoperative complications we are aware of in gynaecological oncology to include the patient-reported data. Patient-reporting is invaluable for obtaining complete information on postoperative complications. Primary care case-note review is likely to improve verification rates of patient-reported Grade II complications.
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Affiliation(s)
- R Iyer
- University College, London, UK
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Maahs DM, Dabelea D, D’Agostino RB, Andrews JS, Shah AS, Crimmins N, Mayer-Davis EJ, Marcovina S, Imperatore G, Wadwa RP, Daniels SR, Reynolds K, Hamman RF, Dolan LM. Glucose control predicts 2-year change in lipid profile in youth with type 1 diabetes. J Pediatr 2013; 162:101-7.e1. [PMID: 22795314 PMCID: PMC3807690 DOI: 10.1016/j.jpeds.2012.06.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 05/11/2012] [Accepted: 06/04/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To test the hypothesis that a change in glycated hemoglobin (A1c) over a follow-up interval of approximately 2 years would be associated with concomitant changes in fasting lipids in individuals with type 1 diabetes (T1D). STUDY DESIGN All subjects with T1D diagnosed in 2002-2005 in the SEARCH for Diabetes in Youth study with at least 2 study visits ∼12 and ∼24 months after an initial visit were included (age at initial visit, 10.6 ± 4.1 years; 48% female; diabetes duration, 10 ± 7 months; 76% non-Hispanic white; A1c = 7.7% ± 1.4%). Longitudinal mixed models were fit to examine the relationship between change in A1c and change in lipid levels (total cholesterol [TC], high-density lipoprotein-cholesterol [HDL-c], low-density lipoprotein-cholesterol [LDL-c], log triglycerides [TG], and non-HDL-c) with adjustment for possible confounders. RESULTS Change in A1c over time was significantly associated with changes in TC, HDL-c, LDL-c, TG, and non-HDL-c over the range of A1c values. For example, for a person with an A1c of 10% and then a 2% decrease in A1c 2 years later (to 8%), the model predicted concomitant changes in TC (-0.29 mmol/L, -11.4 mg/dL), HDL-c (0.03 mmol/L, 1.3 mg/dL), LDL-c (-0.23 mmol/L, -9.0 mg/dL), and non-HDL-c (-0.32 mmol/L, -12.4 mg/dL) and an 8.5% decrease in TG (mmol/L). CONCLUSIONS Improved glucose control over a 2-year follow-up was associated with a more favorable lipid profile but may be insufficient to normalize lipids in dyslipidemic T1D youth needing to decrease lipids to goal.
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Affiliation(s)
- DM Maahs
- Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO,Colorado School of Public Health, Department of Epidemiology, University of Colorado Denver,The Children’s Hospital Colorado, Aurora, CO
| | - D Dabelea
- Colorado School of Public Health, Department of Epidemiology, University of Colorado Denver
| | | | - JS. Andrews
- Wake Forest School of Medicine, Winston-Salem, NC
| | - AS Shah
- Cincinnati Children’s Hospital, University of Cincinnati College of Medicine, Cincinnati, OH
| | - N Crimmins
- Cincinnati Children’s Hospital, University of Cincinnati College of Medicine, Cincinnati, OH
| | - EJ. Mayer-Davis
- University of North Carolina, School of Medicine, Chapel Hill, NC
| | - S Marcovina
- Northwest Lipid Research Laboratory, Seattle, WA
| | - G Imperatore
- Division of Diabetes Translation, The Centers for Disease Control and Prevention, Atlanta, GA
| | - RP Wadwa
- Barbara Davis Center for Childhood Diabetes, University of Colorado Denver, Aurora, CO
| | - SR Daniels
- The Children’s Hospital Colorado, Aurora, CO
| | - K Reynolds
- Department of Research & Evaluation, Kaiser Permanente Southern California Pasadena, CA
| | - RF Hamman
- Colorado School of Public Health, Department of Epidemiology, University of Colorado Denver
| | - LM Dolan
- Cincinnati Children’s Hospital, University of Cincinnati College of Medicine, Cincinnati, OH
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Gersh J, Reynolds K, DeWeese M. SU-E-J-40: Lung Lesion Tracking Using Fixed-Spaced Non-Migrating Fiducial Markers in Robotic Radiosurgery. Med Phys 2012; 39:3661. [DOI: 10.1118/1.4734875] [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: 11/07/2022] Open
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Bonnett SA, Rath CM, Shareef AR, Joels JR, Chemler JA, Håkansson K, Reynolds K, Sherman DH. Acyl-CoA subunit selectivity in the pikromycin polyketide synthase PikAIV: steady-state kinetics and active-site occupancy analysis by FTICR-MS. ACTA ACUST UNITED AC 2012; 18:1075-81. [PMID: 21944746 DOI: 10.1016/j.chembiol.2011.07.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Revised: 06/23/2011] [Accepted: 07/04/2011] [Indexed: 10/17/2022]
Abstract
Polyketide natural products generated by type I modular polyketide synthases (PKSs) are vital components in our drug repertoire. To reprogram these biosynthetic assembly lines, we must first understand the steps that occur within the modular "black boxes." Herein, key steps of acyl-CoA extender unit selection are explored by in vitro biochemical analysis of the PikAIV PKS model system. Two complementary approaches are employed: a fluorescent-probe assay for steady-state kinetic analysis, and Fourier Transform Ion Cyclotron Resonance-mass spectrometry (FTICR-MS) to monitor active-site occupancy. Findings from five enzyme variants and four model substrates have enabled a model to be proposed involving catalysis based upon acyl-CoA substrate loading followed by differential rates of hydrolysis. These efforts suggest a strategy for future pathway engineering efforts using unnatural extender units with slow rates of hydrolytic off-loading from the acyltransferase domain.
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Affiliation(s)
- Shilah A Bonnett
- Department of Chemistry, Portland State University, Portland, OR 97201, USA
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Skirvin DJ, Kravar-Garde L, Reynolds K, Wright C, Mead A. The effect of within-crop habitat manipulations on the conservation biological control of aphids in field-grown lettuce. Bull Entomol Res 2011; 101:623-31. [PMID: 21251340 DOI: 10.1017/s0007485310000659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Within-crop habitat manipulations have the potential to increase the biological control of pests in horticultural field crops. Wildflower strips have been shown to increase the abundance of natural enemies, but there is little evidence to date of an impact on pest populations. The aim of this study was to determine whether within-crop wildflower strips can increase the natural regulation of pests in horticultural field crops. Aphid numbers in plots of lettuce grown adjacent to wildflower strips were compared with those in plots grown in the absence of wildflowers. The presence of wildflower strips led to a decrease in aphid numbers on adjacent lettuce plants during June and July, but had less impact in August and September. The decrease in aphid numbers was greatest close to the wildflower strips and, the decrease in aphid numbers declined with increasing distance from the wildflower strips, with little effect at a distance of ten metres. The main natural enemies found in the crop were those that dispersed aerially, which is consistent with data from previous studies on cereal crops. Analysis and interpretation of natural enemy numbers was difficult due to low recovery of natural enemies, and the numbers appeared to follow changes in aphid abundance rather than being directly linked to the presence of wildflower strips. Cutting the wildflower strips, to remove floral resources, had no impact on the reduction in aphid numbers achieved during June and July, but decreased the effect of the wildflower strips during August and September. The results suggest that wildflower strips can lead to increased natural regulation of pest aphids in outdoor lettuce crops, but more research is required to determine how this is mediated by natural enemies and how the impact of wildflower strips on natural pest regulation changes during the growing season.
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Wofford MR, Rebholz CM, Reynolds K, Chen J, Chen CS, Myers L, Xu J, Jones DW, Whelton PK, He J. Effect of soy and milk protein supplementation on serum lipid levels: a randomized controlled trial. Eur J Clin Nutr 2011; 66:419-25. [DOI: 10.1038/ejcn.2011.168] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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