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Buczek E, Hicks M, Moroco A, Cottrill E. Neuroanatomy and Monitoring of the External Branch of the Superior Laryngeal Nerve. Curr Otorhinolaryngol Rep 2021. [DOI: 10.1007/s40136-021-00349-3] [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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Redd M, Scheuer S, Saez N, Yoshikawa Y, Chiu H, Gao L, Hicks M, Villanueva J, Cuellar-Partida G, Peart J, See Hoe L, Chen X, Sun Y, Suen J, Hatch R, Rollo B, Alzubaidi M, Maljevic S, Quaife-Ryan G, Hudson J, Porrello E, White M, Cordwell S, Fraser J, Petrou S, Reichelt M, Thomas W, King G, Macdonald P, Palpant N. Genetic and Pharmacological Studies Reveal Acid Sensing Ion Channel 1a as a Novel Therapeutic Target Against Cardiac Ischaemia-Reperfusion Injury. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.005] [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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Scheuer S, Chew H, Soto C, Hicks M, Gao L, Villanueva J, Kawanishi Y, Watson A, Connellan M, Granger E, Jansz P, Macdonald P. Getting the Time Right: What Matters, What Doesn't, and How Should We Really Be Defining Ischemic Times in DCD Withdrawals? J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1042] [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] Open
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Villanueva J, Gao L, Scheuer S, Doyle A, Hicks M, Macdonald P. Empagliflozin Improves Cardiac Functional Recovery after Prolonged Cold Storage of Donor Hearts in an Isolated Working Rat Heart Model. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.418] [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: 10/24/2022] Open
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Cortes A, Polak U, Huang S, Hicks M, Avritscher R. Abstract No. 449 Shear wave elastography (SWE) as a quantitative biophysical assay to measure tumor stiffness changes after hepatic arterial embolization. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.494] [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] Open
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Cortes A, Chang S, Polak U, Sheth R, Hicks M, Avritscher R. Abstract No. 446 Increased CD4+Th17 cells after transarterial hepatic artery embolization in an orthotopic rat model of hepatocellular carcinoma. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.491] [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] Open
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Scheuer S, Gao L, Hicks M, Chew H, Villanueva J, Doyle A, Jabbour A, King G, Macdonald P, Dhital K. Putting Donor Heart Preservation to the Acid Test. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.746] [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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Chew H, Cheong C, Fulton M, Shah M, Doyle A, Gao L, Villanueva J, Soto C, Hicks M, Connellan M, Granger E, Jansz P, Spratt P, Hayward C, Keogh A, Kotlyar E, Jabbour A, Dhital K, Macdonald P. Outcome After Warm Machine Perfusion (WMP) Recovery of Marginal Brain Dead (MBD) and Donation After Circulatory Death (DCD) Heart Transplantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Nishiofuku H, Cortes A, Minhaj A, Maldonado K, Dixon K, Muñoz N, Kingsley C, Mcwatters A, Kichikawa K, Hicks M, Avritscher R. Understanding the distribution and embolization effects of ultrasmall doxorubicin eluting beads in a rodent model of hepatocellular carcinoma. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.987] [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] Open
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Cortes A, Nishiofuku H, Minhaj A, Maldonado K, Dixon K, Kingsley C, Mcwatters A, Kichikawa K, Hicks M, Avritscher R. Factors impacting technical success rate of transcatheter arterial chemoembolization in Sprague-Dawley rats. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.1046] [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] Open
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Mohammad K, Hicks M, Buchhalter J, Esser MJ, Irvine L, Thomas S, Scott J, Javadyan J, Kamaluddeen M. Hemodynamic instability associated with increased risk of death or brain injury in neonates with hypoxic ischemic encephalopathy. J Neonatal Perinatal Med 2017; 10:363-370. [PMID: 29843258 DOI: 10.3233/npm-1816162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To determine the association between hemodynamic instability requiring inotropes and brain injury or death in neonates with hypoxic ischemic encephalopathy (HIE). METHODS Retrospective cohort study of 221 neonates with HIE. Brain injury was defined using four HIE patterns based on MRI diffusion or T1 changes. The primary outcome was death or brain injury. Secondary outcomes were abnormal MRI, death, and abnormal EEG. Logistic regression was used to examine the risk of death or brain injury with the use of inotropes while adjusting for confounding factors. RESULTS Brain injury or death occurred more often in neonates who received inotropes (71.1%, 69/97) compared to those who did not (44.3%, 55/124). The use of inotropes was associated with increased risk of death or brain injury (OR 3.11; 95% CI 1.39-7.004) and abnormal MRI (OR 2.78; 95% CI 1.22-6.34) after adjusting for confounding factors. Mortality was significantly higher in neonates exposed to inotropes (21.6%, 21/97) compared with those who did not receive inotropes (4%, 5/124), P < 0.001. CONCLUSION In infants with HIE, hemodynamic instability requiring inotropes in the first 72 hours of life was associated with increased risk of death or brain injury detected by MRI.
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Affiliation(s)
- K Mohammad
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - M Hicks
- Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - J Buchhalter
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - M J Esser
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - L Irvine
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - S Thomas
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - J Scott
- Department Diagnostic Imaging, University of Calgary, Calgary, Canada
| | - J Javadyan
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - M Kamaluddeen
- Department of Pediatrics, University of Calgary, Calgary, Canada
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Young C, Hicks M, Ermolova N, Nakano H, Jan M, Younesi S, Nelson S, Miceli C, Pyle A, Spencer M. Development of a CRISPR/Cas9-mediated gene editing platform to restore the reading frame for 60% of Duchenne muscular dystrophy patients. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.153] [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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Afonso A, Oskar S, Tan KS, Hicks M, Dayan J. Abstract PR351. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492746.33055.f7] [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: 11/05/2022]
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Villanueva J, Gao L, Chew H, Hicks M, Doyle A, Macdonald P, Jabbour A. Investigating the Potential of Dantrolene Sodium Salt as a Cardioprotective Agent During Ischaemia-Reperfusion Injury. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.276] [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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Hicks M, Atkinson D, Demoz B, Vermeesch K, Delgado R. The National Weather Service Ceilometer Planetary Boundary Layer Project. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611915004] [Citation(s) in RCA: 2] [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: 11/14/2022] Open
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Chew H, Cao J, Fernandez K, Gao L, Villanueva J, Hicks M, Jabbour A, Pleass H, Dhital K, Macdonald P. Combined Heart and Liver Retrieval after Circulatory Death with Normothermic Machine Reperfusion in a Porcine Model. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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17
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Holbrook S, Howlett A, Hicks M, Buddhavarapu S, Hart K, Boulton J. 71: NICU Staff Perceptions of Differences Between a Shared Room NICU and a Single Family Room NICU. Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e59a] [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: 11/13/2022] Open
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18
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Holbrook S, Howlett A, Hicks M, Buddhavarapu S, Hart K, Boulton J. 70: Parent Reports of Stressful Experiences in a Shared Room Versus a Single Family Room NICU. Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e59] [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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Iyer A, Gao L, Doyle A, Rao P, Cropper JR, Soto C, Dinale A, Kumarasinghe G, Jabbour A, Hicks M, Jansz PC, Feneley MP, Harvey RP, Graham RM, Dhital KK, MacDonald PS. Normothermic ex vivo perfusion provides superior organ preservation and enables viability assessment of hearts from DCD donors. Am J Transplant 2015; 15:371-80. [PMID: 25612491 DOI: 10.1111/ajt.12994] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [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: 07/11/2014] [Revised: 08/11/2014] [Accepted: 08/25/2014] [Indexed: 01/25/2023]
Abstract
The shortage of donors in cardiac transplantation may be alleviated by the use of allografts from donation after circulatory death (DCD) donors. We have previously shown that hearts exposed to 30 min warm ischemic time and then flushed with Celsior supplemented with agents that activate ischemic postconditioning pathways, show complete recovery on a blood-perfused ex vivo working heart apparatus. In this study, these findings were assessed in a porcine orthotopic heart transplant model. DCD hearts were preserved with either normothermic ex vivo perfusion (NEVP) using a clinically approved device, or with standard cold storage (CS) for 4 h. Orthotopic transplantation into recipient animals was subsequently undertaken. Five of six hearts preserved with NEVP demonstrated favorable lactate profiles during NEVP and all five could be weaned off cardiopulmonary bypass posttransplant, compared with 0 of 3 hearts preserved with CS (p < 0.05, Fisher's exact test). In conclusion, DCD hearts flushed with supplemented Celsior solution and preserved with NEVP display viability before and after transplantation. Viability studies of human DCD hearts using NEVP are warranted.
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Affiliation(s)
- A Iyer
- The Victor Chang Cardiac Research Institute, Sydney, Australia; Heart & Lung Transplant Unit, St Vincent's Hospital, Darlinghurst, Australia; Department of Cardiothoracic Surgery, St Vincent's Hospital, Darlinghurst, Australia
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Iyer A, Gao L, Doyle A, Rao P, Jayewardene D, Wan B, Kumarasinghe G, Jabbour A, Hicks M, Jansz PC, Feneley MP, Harvey RP, Graham RM, Dhital KK, Macdonald PS. Increasing the tolerance of DCD hearts to warm ischemia by pharmacological postconditioning. Am J Transplant 2014; 14:1744-52. [PMID: 25040306 DOI: 10.1111/ajt.12782] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 03/10/2014] [Accepted: 03/30/2014] [Indexed: 01/25/2023]
Abstract
Donation after circulatory death (DCD) offers a potential additional source of cardiac allografts. We used a porcine asphyxia model to evaluate viability of DCD hearts subjected to warm ischemic times (WIT) of 20–40 min prior to flushing with Celsior (C) solution. We then assessed potential benefits of supplementing C with erythropoietin, glyceryl trinitrate and zoniporide (Cs), a combination that we have shown previously to activate ischemic postconditioning pathways. Hearts flushed with C/Cs were assessed for functional, biochemical and metabolic recovery on an ex vivo working heart apparatus. Hearts exposed to 20-min WIT showed full recovery of functional and metabolic profiles compared with control hearts (no WIT). Hearts subjected to 30- or 40-min WIT prior to C solution showed partial and no recovery, respectively. Hearts exposed to 30-min WIT and Cs solution displayed complete recovery, while hearts exposed to 40-min WIT and Cs solution demonstrated partial recovery. We conclude that DCD hearts flushed with C solution demonstrate complete recovery up to 20-min WIT after which there is rapid loss of viability. Cs extends the limit of WIT tolerability to 30 min. DCD hearts with ≤30-min WIT may be suitable for transplantation and warrant assessment in a transplant model.
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Iyer A, Gao L, Hicks M, Kumarasinghe G, Jansz P, Jabbour A, Al-Soufi S, Aneman A, Flynn G, Rajamani A, Cheng A, Raper R, Goh D, MacPartlin M, Saul P, Dhital K, Macdonald P. Case Report of Cardiac Allografts Retrieved From Human Donation After Circulatory Death (DCD) Donors - Assessment on Ex Vivo Beating Heart Perfusion Device. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.038] [Citation(s) in RCA: 3] [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: 11/28/2022] Open
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22
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Watson AJ, Gao L, Sun L, Tsun J, Doyle A, Faddy SC, Jabbour A, Orr Y, Dhital K, Hicks M, Jansz PC, Macdonald PS. Enhanced preservation of pig cardiac allografts by combining erythropoietin with glyceryl trinitrate and zoniporide. Am J Transplant 2013; 13:1676-87. [PMID: 23668842 DOI: 10.1111/ajt.12249] [Citation(s) in RCA: 19] [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: 01/21/2013] [Revised: 02/25/2013] [Accepted: 03/14/2013] [Indexed: 01/25/2023]
Abstract
Erythropoietin has a tissue-protective effect independent of its erythropoietic effect that may be enhanced by combining it with the nitric oxide donor glyceryl trinitrate (GTN) and the sodium-hydrogen exchange inhibitor zoniporide in rat hearts stored with an extracellular-based preservation solution (EBPS). We thus sought to test this combination of agents in a porcine model of orthotopic heart transplantation incorporating donor brain death and total ischaemic time of approximately 260 min. Pig hearts were stored in one of four storage solutions: unmodified EBPS (CON), EBPS supplemented with GTN and zoniporide (GZ), EBPS supplemented with erythropoietin and zoniporide (EZ), or EBPS supplemented with all three agents (EGZ). A total of 4/5 EGZ hearts were successfully weaned from cardiopulmonary bypass compared with only 2/5 GZ hearts, 0/5 CON hearts and 0/5 EG hearts (p = 0.017). Following weaning from bypass EGZ hearts demonstrated superior contractility and haemodynamics than GZ hearts. All weaned hearts displayed impaired diastolic function. Release of troponin I from EGZ hearts was lower than all other groups. In conclusion, supplementation of EBPS with erythropoietin, glyceryl trinitrate and zoniporide provided superior donor heart preservation than all other strategies tested.
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Affiliation(s)
- A J Watson
- Transplant Program, The Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
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Iyer A, Doyle A, Gao L, Kumarasinghe G, Wan B, Jabbour A, Hicks M, Jansz P, Dhital K, Macdonald P. Hearts from Donations After Circulatory Death (DCD) Donors – Assessment on Clinically Approved Ex-vivo Organ Care System. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.03.040] [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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Iyer A, Gao L, Doyle A, Kumarasinghe G, Jabbour A, Hicks M, Jansz P, Dhital K, Macdonald P. Hearts from Donations after Circulatory Death (DCD) Donors – Assessment in a Porcine Transplant Model Utilising Transmedics Organ Care System for Organ Perfusion Preservation. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.985] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hicks M, Ruff M, Sauve R, Mitchell I. Timing of Sudden Infant Death Syndrome in Term and Preterm Infants: 30 Years’ Experience. Paediatr Child Health 2012. [DOI: 10.1093/pch/17.suppl_a.24a] [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: 11/13/2022] Open
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26
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Kumarasinghe G, Iyer A, Hicks M, Gao L, Doyle A, Keogh A, Hayward C, Kotlyar E, Granger E, Dhital K, Jansz P, Spratt P, Macdonald P. 422 Early Clinical Experience Supplementing Celsior Preservation Solution with Pro-Survival Kinase Agents Glyceryl Trinitrate and Erythropoietin Demonstrates Improved Myocardial Recovery Post Cardiac Transplantation. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.432] [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] Open
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Gao L, Kwan J, Doyle A, Macdonald P, Hicks M. 377 Enhanced Pro-Survival Signaling by Phosphatase Inhibition – A Potential Strategy for Improving Post-Storage Function of Marginal Donor Hearts. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.385] [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] Open
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Watson A, Gao L, Sun L, Faddy S, Doyle A, Hicks M, Dhital K, Jansz P, Macdonald P. Enhanced Cardiac Allograft Preservation by Supplementation of Celsior With Erythropoietin, Glyceryl Trinitrate and Zoniporide—Validation in Small and Large Animal Models. Heart Lung Circ 2011. [DOI: 10.1016/j.hlc.2010.11.009] [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: 10/18/2022]
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Gao L, Tsun J, Sun L, Kwan J, Watson A, Macdonald PS, Hicks M. Critical role of the STAT3 pathway in the cardioprotective efficacy of zoniporide in a model of myocardial preservation - the rat isolated working heart. Br J Pharmacol 2011; 162:633-47. [PMID: 20942815 PMCID: PMC3041253 DOI: 10.1111/j.1476-5381.2010.01071.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [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: 04/28/2010] [Revised: 08/23/2010] [Accepted: 09/21/2010] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE Ischemia-reperfusion injury plays an important role in the development of primary allograft failure after heart transplantation. Inhibition of the Na+/H+ exchanger is one of the most promising therapeutic strategies for treating ischemia-reperfusion injury. Here we have characterized the cardioprotective efficacy of zoniporide and the underlying mechanisms in a model of myocardial preservation using rat isolated working hearts. EXPERIMENTAL APPROACH Rat isolated hearts subjected to 6 h hypothermic (1-4°C) storage followed by 45 min reperfusion at 37°C were treated with zoniporide at different concentrations and timing. Recovery of cardiac function, levels of total and phosphorylated protein kinase B, extracellular signal-regulated kinase 1/2, glycogen synthase kinase-3β and STAT3 as well as cleaved caspase 3 were measured at the end of reperfusion. Lactate dehydrogenase release into coronary effluent before and post-storage was also measured. KEY RESULTS Zoniporide concentration-dependently improved recovery of cardiac function after reperfusion. The functional recovery induced by zoniporide was accompanied by up-regulation of p-extracellular signal-regulated kinase 1/2 and p-STAT3, and by reduction in lactate dehydrogenase release and cleaved caspase 3. There were no significant differences in any of the above indices when zoniporide was administered before, during or after ischemia. The STAT3 inhibitor, stattic, abolished zoniporide-induced improvements in functional recovery and up-regulation of p-STAT3 after reperfusion. CONCLUSIONS AND IMPLICATIONS Zoniporide is a potent cardioprotective agent and activation of STAT3 plays a critical role in the cardioprotective action of zoniporide. This agent shows promise as a supplement to storage solutions to improve preservation of donor hearts.
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Affiliation(s)
- L Gao
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
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Kumarasinghe G, Iyer A, Hicks M, Gao L, Watson A, Jansz P, Dhital K, Granger E, Spratt P, Macdonald P. Heart Transplantation: Early Clinical Experience of Supplementing Celsior® Preservation Solution with Pro-survival Kinase Agents Erythropoietin and Glyceryl Trinitrate. Heart Lung Circ 2011. [DOI: 10.1016/j.hlc.2011.05.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Watson A, Gao L, Tsun J, Sun L, Jabbour A, Hicks M, Macdonald P. 309: Extended Myocardial Preservation by Polypharmaceutical Supplementation of Celsior. J Heart Lung Transplant 2010. [DOI: 10.1016/j.healun.2009.11.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Watson A, Gao L, Sun L, Faddy S, Hicks M, Jansz P, Macdonald P. 313: Exogenous T3 Causes Acute Pulmonary Hypertension in a Porcine Model of Brain Death. J Heart Lung Transplant 2010. [DOI: 10.1016/j.healun.2009.11.326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Gao L, Tsun J, Sun L, Watson A, Hicks M, Macdonald P. Cardio-Protective Effects of Zoniporide is Dependent on Stat3 Activation. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.06.763] [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: 11/25/2022]
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Pieters CM, Goswami JN, Clark RN, Annadurai M, Boardman J, Buratti B, Combe JP, Dyar MD, Green R, Head JW, Hibbitts C, Hicks M, Isaacson P, Klima R, Kramer G, Kumar S, Livo E, Lundeen S, Malaret E, McCord T, Mustard J, Nettles J, Petro N, Runyon C, Staid M, Sunshine J, Taylor LA, Tompkins S, Varanasi P. Character and Spatial Distribution of OH/H2O on the Surface of the Moon Seen by M3 on Chandrayaan-1. Science 2009; 326:568-72. [DOI: 10.1126/science.1178658] [Citation(s) in RCA: 497] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Hing AJ, Watson A, Hicks M, Gao L, Faddy SC, McMahon AC, Kesteven SH, Wilson MK, Jansz P, Feneley MP, Macdonald PS. Combining cariporide with glyceryl trinitrate optimizes cardiac preservation during porcine heart transplantation. Am J Transplant 2009; 9:2048-56. [PMID: 19645707 DOI: 10.1111/j.1600-6143.2009.02736.x] [Citation(s) in RCA: 26] [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] [Indexed: 01/25/2023]
Abstract
Sodium-hydrogen exchange inhibitors, such as cariporide, are potent cardioprotective agents, however, safety concerns have been raised about intravenously (i.v.) administered cariporide in humans. The aim of this study was to develop a preservation strategy that maintained cariporide's cardioprotective efficacy during heart transplantation while minimizing recipient exposure. We utilized a porcine model of orthotopic heart transplantation that incorporated donor brain death and 14 h static heart storage. Five groups were studied: control (CON), hearts stored in Celsior; CAR1, hearts stored in Celsior with donors and recipients receiving cariporide (2 mg/kg i.v.) prior to explantation and reperfusion, respectively; CAR2, hearts stored in Celsior supplemented with cariporide (10 mumol/L); GTN, hearts stored in Celsior supplemented with glyceryl trinitrate (GTN) (100 mg/L); and COMB, hearts stored in Celsior supplemented with cariporide (10 mumol/L) plus GTN (100 mg/L). A total of 5/5 CAR1 and 5/6 COMB recipients were weaned from cardiopulmonary bypass compared with 1/5 CON, 1/5 CAR2 and 0/5 GTN animals (p = 0.001). Hearts from the CAR1 and COMB groups demonstrated similar cardiac function and troponin release after transplantation. Supplementation of Celsior with cariporide plus GTN provided superior donor heart preservation to supplementation with either agent alone and equivalent preservation to that observed with systemic administration of cariporide to the donor and recipient.
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Affiliation(s)
- A J Hing
- Transplant Program, The Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
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Abstract
Alcoholic beverage consumption prior to the onset of Wernicke's encephalopathy is shown to be, primarily, full strength beer, although not always in large quantity, by 91% of 80 patients. Secondly, in order of frequency of consumption, was white wine sold in casks and consumed by 30% of patients. These findings have implications when decisions have to be made regarding which alcoholic beverages could be fortified with thiamine as a measure designed to prevent the development of the Wernicke-Korsakoff syndrome.
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Affiliation(s)
- J Price
- Department of Psychiatry, Clinical Sciences Building, Royal Brisbane Hospital, Herston, Queensland, 4029, Australia
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Jabbour A, Gao L, Kwan J, Watson A, Liu X, Zhou M, Graham R, Hicks M, Macdonald P. 239: A Recombinant Human Neuregulin-1 Peptide Added to Celsior Solution Further Improves Preservation of the Transplanted Rat Heart after Prolonged Hypothermic Storage. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.869] [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] Open
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Watson A, Gao L, Tsun J, Kwan J, Jabbour A, Macdonald P, Hicks M. 357: Erythropoietin Improves Functional Recovery of the Rat Heart after Prolonged Cold Storage in Celsior Solution. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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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Gupta S, Patel J, Wallace M, Ahrar K, Madoff D, Murthy R, Suitor C, McEnery K, Hicks M. Abstract No. 105: Integration of Online Reporting System for Interventional Radiology Procedure-Related Complications with the Digital Dictation System: Early Experience. J Vasc Interv Radiol 2009. [DOI: 10.1016/j.jvir.2008.12.086] [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] Open
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Watson A, Gao L, Tsun J, Jabbour A, Kwan J, Sun L, Hicks M, Macdonald P. Enhanced Myocardial Protection by Supplementation of Celsior with Erythropoietin. Heart Lung Circ 2009. [DOI: 10.1016/j.hlc.2009.05.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Jabbour A, Gao L, Kwan J, Watson A, Sun L, Liu X, Zhou M, Graham R, Hicks M, Macdonald P. A Recombinant Human Neuregulin-1 Peptide Improves Preservation of the Transplanted Rat Heart After Prolonged Hypothermic Storage. Heart Lung Circ 2009. [DOI: 10.1016/j.hlc.2009.05.382] [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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42
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Hing AJ, Hicks M, Garlick SR, Gao L, Kesteven SH, Faddy SC, Wilson MK, Feneley MP, Macdonald PS. The effects of hormone resuscitation on cardiac function and hemodynamics in a porcine brain-dead organ donor model. Am J Transplant 2007; 7:809-17. [PMID: 17331116 DOI: 10.1111/j.1600-6143.2007.01735.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We compared the effects of hormone resuscitation (HR) with a norepinephrine-based protocol on cardiac function, hemodynamics and need for vasopressor support after brain death in a porcine model. Following brain death induction, animals were treated with norepinephrine and fluids for 3 h. In the following 3 h, they continued on norepinephrine and fluids (control) or received additional HR (triiodothyronine, methylprednisolone, vasopressin, insulin). Data were collected pre-brain death, 3 and 6 h post-brain death. At 6 h, median norepinephrine use was higher in controls (0.563 vs. 0 microg/kg/min; p < 0.005), with 6/8 HR animals weaned off norepinephrine compared with 0/9 controls. Mean arterial pressure was higher in HR animals at 6 h (74 +/- 17 vs. 54 +/- 14 mmHg; p < 0.05). Cardiac contractility was also significantly higher in HR animals at 6 h (stroke work index 1.777 vs. 1.494). After collection of 6 h data, all animals were placed on the same low dose of norepinephrine. At 6.25 h, HR animals had higher stroke work (3540 +/- 1083 vs. 1536 +/- 702 mL.mmHg; p < 0.005), stroke volume (37.2 +/- 8.2 vs. 21.5 +/- 9.8 mL; p < 0.01) and cardiac output (5.8 +/- 1.4 vs. 3.2 +/- 1.2 L/min; p < 0.005). HR in a porcine model of brain death reduces norepinephrine requirements, and improves hemodynamics and cardiac function. These results support the use of HR in the management of the brain-dead donor.
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Affiliation(s)
- A J Hing
- Transplant Program, The Victor Chang Cardiac Research Institute, and Heart Transplant Unit, St Vincent's Hospital, Sydney, Australia.
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Hing A, Hicks M, Gao L, Faddy S, Tran P, Kesteven S, Sharland A, Stewart G, Macdonald P. 427: The effects of hormone resuscitation on transplantable organs in the brain dead donor. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.449] [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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Kwan J, Gao L, Macdonald P, Hicks M. Cardioprotective Effect of Poly(ADP-RIBOSE) Polymerase (PARP) Inhibition: Role of PI3-k/Akt. Heart Lung Circ 2007. [DOI: 10.1016/j.hlc.2007.06.068] [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: 10/23/2022]
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46
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Tough S, Clarke M, Hicks M, Cook J. Physician Practices Related to Preconception Counselling. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s57-c] [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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47
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Ahrar K, Matin S, Wood C, Wallace M, Gupta S, Madoff D, Rao S, Tannir N, Jonasch E, Pisters L, Rozner M, Kennamer D, Hicks M. Percutaneous Radiofrequency Ablation of Renal Tumors: Technique, Complications and Outcomes. J Urol 2006. [DOI: 10.1016/s0022-5347(06)00186-8] [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)
- K. Ahrar
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - S. Matin
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - C.G. Wood
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - M.J. Wallace
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - S. Gupta
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - D.C. Madoff
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - S. Rao
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - N.M. Tannir
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - E. Jonasch
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - L.L. Pisters
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - M.A. Rozner
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - D.L. Kennamer
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - M.E. Hicks
- Department of Diagnostic Radiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Urology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Genitourinary Medical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Anesthesiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
- Department of Cardiology, University of Texas M. D. Anderson Cancer Center, Houston, Texas
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Hing A, Hicks M, Gao L, Wilson M, Mackie F, Macdonald PS. The case for a standardised protocol that includes hormone resuscitation for the management of the cadaveric multi-organ donor. CRIT CARE RESUSC 2005; 7:43-50. [PMID: 16548818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Affiliation(s)
- A Hing
- Heart and Lung Transplant Unit, St Vincent's Hospital, Victor Chang Cardiac Research Institute, New South Wales
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Hing A, Hicks M, Garlick S, Gao L, Kesteven S, Wilson M, Feneley M, Macdonald P. Resuscitation of the brain dead donor heart using hormones in a porcine model. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.12.052] [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: 11/25/2022] Open
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50
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Abstract
PURPOSE To test the effectiveness of our Canadian retinopathy of prematurity (ROP) screening guidelines as applied to high-risk premature infants. STUDY DESIGN Retrospective longitudinal cohort study. SUBJECTS A total of 969 infants were examined longitudinally between 1991 and 2000 and 46 of these infants screened were treated for severe ROP. METHODS Data from weekly ROP screening examination results were collected from a geographical area and analysed. RESULTS The average incidence of severe ROP requiring treatment in the population of premature infants eligible for screening was 48.3 per 1000. In all, 46 infants were treated in this cohort. The mean gestational age (GA) was 25.5 weeks of age and the mean birth weight was 750 g. The mean chronological age (CA) and postmenstrual age (PMA) at the time of first screening was 36 days and 30.7 weeks, respectively. The first identification of any ROP in this group was at a mean CA 60 days and PMA of 34.1 weeks. The mean CA and PMA of the first observation of stage 3 were 74 days and 36.3 weeks. The mean CA and PMA at the time of treatment were 86 days and 37.7 week. CONCLUSIONS Our observations and analysis indicate the following ROP screening recommendations: infants of 28 weeks of GA or less, infants with a GA between 28 weeks and 30 weeks should have a single 'spot examination' at approximately 37 weeks of PMA (or prior to discharge from hospital) to include possible outliers; infants born with a birth weight of 1250 g or less; initial screening examination should be at 31 weeks of PMA or 4 weeks of CA, whichever is later; in the presence of any active ROP, the infant should be followed every 1-2 weeks; and stage 3 should be followed at least every 7 days.
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Affiliation(s)
- A Ells
- Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada.
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