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Nagareddy P, Sreejit G, Abdel-Latif A, Athmanathan B, Annabathula R, Dhyani A, Noothi S, Quaife-Ryan G, Hudson J, Smyth S, Porrello E, Murphy A. Nlrp3 Inflammasome-Primed Neutrophils Return To The Bone Marrow To Propagate Granulopoiesis Following Myocardial Injury. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee M, Al-sharea A, Henstridge D, Hamilton J, Sviridov D, Murphy A. Mitochondrial Dysfunction In M2 Macrophages Differentiated From Human Non-Classical Monocytes Is Linked To Foam Cell Formation. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Weiner GA, Shah SH, Angelopoulos CM, Bartakova AB, Pulido RS, Murphy A, Nudleman E, Daneman R, Goldberg JL. Cholinergic neural activity directs retinal layer-specific angiogenesis and blood retinal barrier formation. Nat Commun 2019; 10:2477. [PMID: 31171770 PMCID: PMC6554348 DOI: 10.1038/s41467-019-10219-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 04/26/2019] [Indexed: 12/16/2022] Open
Abstract
Blood vessels in the central nervous system (CNS) develop unique features, but the contribution of CNS neurons to regulating those features is not fully understood. We report that inhibiting spontaneous cholinergic activity or reducing starburst amacrine cell numbers prevents invasion of endothelial cells into the deep layers of the retina and causes blood-retinal-barrier (BRB) dysfunction in mice. Vascular endothelial growth factor (VEGF), which drives angiogenesis, and Norrin, a Wnt ligand that induces BRB properties, are decreased after activity blockade. Exogenous VEGF restores vessel growth but not BRB function, whereas stabilizing beta-catenin in endothelial cells rescues BRB dysfunction but not vessel formation. We further identify that inhibiting cholinergic activity reduces angiogenesis during oxygen-induced retinopathy. Our findings demonstrate that neural activity lies upstream of VEGF and Norrin, coordinating angiogenesis and BRB formation. Neural activity originating from specific neural circuits may be a general mechanism for driving regional angiogenesis and barrier formation across CNS development. During retinal development, waves of cholinergic neural activity play a role in retinal circuit development. Here, the authors show that this activity also contributes to layer-specific angiogenesis and formation of the blood-retinal barrier.
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Silva Martins WF, Silva Pereira BN, Vieira Alves AT, Murphy A, Silva Martins PG, Weetman D, Wilding CS, Donnelly MJ. Development and application of a tri-allelic PCR assay for screening Vgsc-L1014F kdr mutations associated with pyrethroid and organochlorine resistance in the mosquito Culex quinquefasciatus. Parasit Vectors 2019; 12:232. [PMID: 31088572 PMCID: PMC6518802 DOI: 10.1186/s13071-019-3490-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 05/06/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Culex quinquefasciatus has a widespread distribution across tropical and sub-tropical regions, and plays an important role in the transmission of vector-borne diseases of public health importance, including lymphatic filariasis (LF) and multiple arboviruses. Increased resistance to insecticides threatens the efficacy and sustainability of insecticide-based anti-vector interventions which mitigate the burden of mosquito transmitted diseases in endemic regions. In C. quinquefasciatus two non-synonymous voltage gated sodium channel (Vgsc) variants, both resulting in a leucine to phenylalanine change at codon 1014, are associated with resistance to pyrethroids and DDT. This tri-allelic variation has compromised the ability to perform high-throughput single-assay screening. To facilitate the detection and monitoring of the Vgsc-1014 locus in field-caught mosquitoes, an Engineered-Tail Allele-Specific-PCR (ETAS-PCR) diagnostic assay was developed and applied to wild mosquitoes from Brazil, Tanzania and Uganda. RESULTS This new cost-effective, single-tube assay was compared to two, well-established, genotyping approaches, pyrosequencing and TaqMan. The ETAS-PCR assay showed high specificity for discriminating the three alleles at Vgsc-L1014F, with genotyping results strongly correlated with pyrosequencing and TaqMan results (98.64% and 100% respectively). CONCLUSIONS Our results support the utility of the ETAS-PCR/Vgsc-1014 diagnostic assay, which stands as an effective alternative for genotyping tri-allelic variants.
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Hurcombe JA, Hartley P, Lay AC, Ni L, Bedford JJ, Leader JP, Singh S, Murphy A, Scudamore CL, Marquez E, Barrington AF, Pinto V, Marchetti M, Wong LF, Uney J, Saleem MA, Mathieson PW, Patel S, Walker RJ, Woodgett JR, Quaggin SE, Welsh GI, Coward RJM. Podocyte GSK3 is an evolutionarily conserved critical regulator of kidney function. Nat Commun 2019; 10:403. [PMID: 30679422 PMCID: PMC6345761 DOI: 10.1038/s41467-018-08235-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 12/21/2018] [Indexed: 01/18/2023] Open
Abstract
Albuminuria affects millions of people, and is an independent risk factor for kidney failure, cardiovascular morbidity and death. The key cell that prevents albuminuria is the terminally differentiated glomerular podocyte. Here we report the evolutionary importance of the enzyme Glycogen Synthase Kinase 3 (GSK3) for maintaining podocyte function in mice and the equivalent nephrocyte cell in Drosophila. Developmental deletion of both GSK3 isoforms (α and β) in murine podocytes causes late neonatal death associated with massive albuminuria and renal failure. Similarly, silencing GSK3 in nephrocytes is developmentally lethal for this cell. Mature genetic or pharmacological podocyte/nephrocyte GSK3 inhibition is also detrimental; producing albuminuric kidney disease in mice and nephrocyte depletion in Drosophila. Mechanistically, GSK3 loss causes differentiated podocytes to re-enter the cell cycle and undergo mitotic catastrophe, modulated via the Hippo pathway but independent of Wnt-β-catenin. This work clearly identifies GSK3 as a critical regulator of podocyte and hence kidney function.
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Murphy A, Dinh D, Duffy S, Brennan A, Andrianopoulos N, Freeman M, Reid C, Ajani A, Farouque O, Martin L, Dagan M, Blusztein D, Eccleston D, Yudi M, Clark D. Impact of Gender and Door-to-Balloon Times on Long-Term Mortality in Patients Presenting with ST-Elevation Myocardial Infarction (STEMI). Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kunniardy P, Koshy A, Meehan G, Murphy A, Gayed D, Ramchand J, Clark D, Farouque O, Yudi M. Do Patients Over 85 Years who Present with NSTEMI and Admitted Under General Medical Units Need Cardiology Consultation? Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kunniardy P, Meehan G, Murphy A, Clark D, Farouque O, Yudi M. Management of NSTEMI in Elderly Patients: What do We Know About Conservative vs Invasive Management in the Elderly? Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Murphy A, Koshy A, Kunniardy P, Meehan G, Ramchand J, Farouque O, Clark D, Yudi M. The Association Between Type II Myocardial Infarction and Increased In-Hospital Mortality in Patients aged >85 years with Non-ST-Elevation Myocardial Infarction. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Murphy A, Farouque O, Faroudi F, Chao M, Yudi M, Yeo B, Koshy A, Horrigan M, Undrill S, Lancefield T. The Role of Serum Cardiac Biomarkers and Left Ventricular Strain Imaging for Detecting Early Radiation Induced Myocardial Damage in Women Undergoing Left-Sided Breast Radiation Therapy: A Pilot Study. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Murphy A, Koshy A, Meehan G, Kunniardy P, Ramchand J, Farouque O, Clark D, Yudi M. The Impact of Living Situation on Management and Outcomes of Patients Aged >85 Years Presenting with NSTEMI. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kunniardy P, Meehan G, Murphy A, Clark D, Farouque O, Yudi M. Inpatient Coronary Angiography is Associated with Reduced Mortality in Patients aged >85 years with Non-ST-Elevation Myocardial Infarction. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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63
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Murphy A, Farouque O, Clark D, Ramchand J, Yudi M. Impact of Gender on Meeting Secondary Prevention Targets and Depression Post Acute Coronary Syndromes: Insights from the SMART-REHAB Trial. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dagan M, Dinh D, Murphy A, Tan C, Brennan A, Warren J, Ajani A, Freeman M, Shaw J, Chan W, Reid C, Andrianopoulos N, Clark D, Duffy S. Gender Disparity in Secondary Prevention Medication and Outcomes Following Percutaneous Coronary Intervention for Acute Coronary Syndrome. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Murphy A, Koshy A, Farouque O, Clark D, Yeo B, Mousley J, Meehan G, Kunniardy P, Yudi M. Mobile Health (mHealth) Cardiovascular Risk Reduction Strategies in Cancer: A Systematic Review and Meta-Analysis. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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66
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Murphy A, Koshy A, Kunniardy P, Meehan G, Ramchand J, Farouque O, Clark D, Yudi M. Is There a Gender Disparity in Characteristics and Outcomes for Patients Over 85 years Presenting with Non-ST-Elevation Myocardial Infarction (NSTEMI)? Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Murphy A, Kelly MJ, Karpanty SM, Andrianjakarivelo V, Farris ZJ. Using camera traps to investigate spatial co‐occurrence between exotic predators and native prey species: a case study from northeastern Madagascar. J Zool (1987) 2018. [DOI: 10.1111/jzo.12645] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Law BJC, Zhuo Y, Winn M, Francis D, Zhang Y, Samborskyy M, Murphy A, Ren L, Leadlay PF, Micklefield J. A vitamin K-dependent carboxylase orthologue is involved in antibiotic biosynthesis. Nat Catal 2018. [DOI: 10.1038/s41929-018-0178-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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69
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Murphy A, Palafox B, Powell-Jackson T, Walli-Attaei M, Rangarajan S, Yusuf S, McKee M, Hanson K. Financial risk for people living with non-communicable diseases from 18 countries in the PURE study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cummins C, Welch M, King D, Shorter K, Murphy A. The association between external workloads and injury risk in professional rugby league players. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Murphy A, Lee TY, Marotta TR, Spears J, Macdonald RL, Aviv RI, Baker A, Bharatha A. Prospective Multicenter Study of Changes in MTT after Aneurysmal SAH and Relationship to Delayed Cerebral Ischemia in Patients with Good- and Poor-Grade Admission Status. AJNR Am J Neuroradiol 2018; 39:2027-2033. [PMID: 30337436 DOI: 10.3174/ajnr.a5844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 07/26/2018] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE Patients with aneurysmal SAH and good clinical status at admission are considered at a lower risk for delayed cerebral ischemia. Prolonged MTT may be associated with an increased risk. It is unclear whether this is dependent on clinical status. Our purpose was to determine whether increased MTT within 3 days of aneurysmal SAH compared with baseline is associated with a higher risk of delayed cerebral ischemia in patients with good (World Federation of Neurosurgical Societies I-III) versus poor (World Federation of Neurosurgical Societies IV-V) admission status. MATERIALS AND METHODS This prolonged MTT was a multicenter, prospective cohort investigation of 87 patients with aneurysmal SAH. MTT was measured at admission before aneurysm treatment (MTT1) and following repair (MTT2) within 3 days of admission; MTTdiff was calculated as the difference between MTT2 and MTT1. Changes in MTT across time were assessed with repeated measures analyses. Risk of delayed cerebral ischemia or death was determined with multivariate logistic regression analysis. RESULTS In patients with a good grade (n = 49), MTT was prolonged in patients who developed delayed cerebral ischemia, with MTTdiff significantly greater (0.82 ± 1.5) compared with those who did not develop delayed cerebral ischemia (-0.14 ± 0.98) (P = .03). Prolonged MTT was associated with a significantly higher risk of delayed cerebral ischemia or death (OR = 3.1; 95% CI, 1.3-7.4; P = .014) on multivariate analysis. In patients with poor grades (n = 38), MTTdiff was not greater in patients who developed delayed cerebral ischemia; MTT1 was significantly prolonged compared with patients with a good grade. CONCLUSIONS Patients in good clinical condition following aneurysmal SAH but with increasing MTT in the first few days after aneurysmal SAH are at high risk of delayed cerebral ischemia and warrant close clinical monitoring.
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Hollebecque A, Borad M, Sahai V, Catenacci D, Murphy A, Vaccaro G, Paulson A, Oh DY, Féliz L, Lihou C, Zhen H, Abou-Alfa G. Interim results of fight-202, a phase II, open-label, multicenter study of INCB054828 in patients (pts) with previously treated advanced/metastatic or surgically unresectable cholangiocarcinoma (CCA) with/without fibroblast growth factor (FGF)/FGF receptor (FGFR) genetic alterations. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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73
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Foxen‐Craft E, Scott E, Kullgren K, Philliben R, Hyman C, Dorta M, Murphy A, Voepel‐Lewis T. Pain location and widespread pain in youth with orthopaedic conditions: Exploration of the reliability and validity of a body map. Eur J Pain 2018; 23:57-65. [DOI: 10.1002/ejp.1282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2018] [Indexed: 11/06/2022]
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Murphy A, Kirby A, Bradley C. Knowledge is power: general practitioners prescribing of new oral anticoagulants in Ireland. BMC Res Notes 2018; 11:478. [PMID: 30012204 PMCID: PMC6048694 DOI: 10.1186/s13104-018-3597-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 07/12/2018] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE New oral anticoagulants (NOACs) aim to overcome warfarin's shortcomings, however their pharmacokinetic characteristics make prescribing complex. Thus it is imperative that general practitioners (GPs) are aware of specific treatments so as to maximise their benefits and minimise their pitfalls. This study explores GPs attitudes and experiences with prescribing NOACs in Ireland where, despite clear national prescribing guidelines advocating warfarin as first line therapy, the number of patients being prescribed NOACs for the first time is growing. RESULTS Using primary data collected from GPs in Ireland the factors influencing the likelihood of a GP initiating a prescription for a NOAC are determined using a probit model. Results indicate 46% of the sample initiated NOAC prescriptions and GP practice size is a significant factor influencing this. Analysis revealed no difference regarding the sources of information considered important amongst GPs when prescribing new drugs. However, there were differences in which factors were considered important when prescribing anticoagulants between initiating and non-initiating NOAC prescribers. The results of this study suggest better utilisation of existing information and education tools for GPs prescribing NOACs and managing NOAC patients is imperative, to ensure the right anticoagulant is prescribed for the right patient at the right time.
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Murphy A, Gerber BD, Farris ZJ, Karpanty S, Ratelolahy F, Kelly MJ. Making the most of sparse data to estimate density of a rare and threatened species: a case study with the fosa, a little‐studied Malagasy carnivore. Anim Conserv 2018. [DOI: 10.1111/acv.12420] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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