Imperial College London

DrGregoryQuinlan

Faculty of MedicineNational Heart & Lung Institute

Senior Research Fellow
 
 
 
//

Contact

 

g.quinlan

 
 
//

Location

 

B140BGuy Scadding BuildingRoyal Brompton Campus

//

Summary

 

Publications

Publication Type
Year
to

173 results found

Lagan AL, Beddow E, Mumby S, Quinlan GJ, Goldstraw P, Christie JD, Lanken PN, Fisher AB, Du Bois RM, Welsh KI, Evans TWet al., 2002, TNF promoter region single nucleotide polymorphism in ARDS, Winter Meeting of the British-Thoracic-Society, Publisher: BRITISH MED JOURNAL PUBL GROUP, ISSN: 0040-6376

Conference paper

Quinlan GJ, Evans TW, Gutteridge JMC, 2002, Iron and the redox status of the lungs, FREE RADICAL BIOLOGY AND MEDICINE, Vol: 33, Pages: 1306-1313, ISSN: 0891-5849

Journal article

Festa M, Mumby S, Nadel S, Gutteridge JMC, Quinlan GJet al., 2002, Antioxidant protection against iron in children with meningococcal sepsis, CRITICAL CARE MEDICINE, Vol: 30, Pages: 1623-1629, ISSN: 0090-3493

Journal article

Mumby S, Quinlan GJ, Martin GS, Bernard G, Gutteridge JMC, Evans TWet al., 2001, Administration of albumin to patients with ARDS results in improved protection from oxidative damage in plasma, THORAX, Vol: 56, Pages: 10-10, ISSN: 0040-6376

Journal article

Upton RL, Quinlan GJ, Nicholson AG, Gutteridge JMC, Evans TWet al., 2001, Transferrin receptor expression may be regulated by mechanisms independent of classical IRP regulation in the lungs of patients with ARDS, THORAX, Vol: 56, Pages: 9-9, ISSN: 0040-6376

Journal article

Moran LK, Gutteridge JMC, Quinlan GJ, 2001, Thiols in cellular redox signalling and control, CURRENT MEDICINAL CHEMISTRY, Vol: 8, Pages: 763-772, ISSN: 0929-8673

Journal article

Quinlan GJ, Chen Y, Evans TW, Gutteridge JMCet al., 2001, Iron signalling regulated directly and through oxygen: implications for sepsis and the acute respiratory distress syndrome, CLINICAL SCIENCE, Vol: 100, Pages: 169-182, ISSN: 0143-5221

Journal article

Gutteridge JMC, Quinlan GJ, Evans TW, 2001, The iron paradox of heart and lungs and its implications for acute lung injury, FREE RADICAL RESEARCH, Vol: 34, Pages: 439-443, ISSN: 1071-5762

Journal article

Mumby S, Quinlan GJ, Evans TW, Gutteridge JMCet al., 2000, Haem oxygenase is elevated in the lungs of patients with ARDS: Implications for iron signalling and accumulation, THORAX, Vol: 55, Pages: A69-A69, ISSN: 0040-6376

Journal article

Upton RL, Gutteridge JMC, Anning PB, Evans TW, Quinlan GJet al., 2000, Ho-1 is involved in the regulation of IRP-1 activity in rat lung: Implications for microbial virulence and lung injury, THORAX, Vol: 55, Pages: A68-A68, ISSN: 0040-6376

Journal article

Quinlan GJ, Evans TW, 2000, Acute respiratory distress syndrome in adults, HOSPITAL MEDICINE, Vol: 61, Pages: 561-563, ISSN: 1462-3935

Journal article

Quinlan GJ, Mumby S, Lamb NJ, Moran LK, Evans TW, Gutteridge JMCet al., 2000, Acute respiratory distress syndrome secondary to cardiopulmonary bypass: Do compromised plasma iron-binding antioxidant protection and thiol levels influence outcome?, CRITICAL CARE MEDICINE, Vol: 28, Pages: 2271-2276, ISSN: 0090-3493

Journal article

Jordan S, Mitchell JA, Quinlan GJ, Goldstraw P, Evans TWet al., 2000, The pathogenesis of lung injury following pulmonary resection, EUROPEAN RESPIRATORY JOURNAL, Vol: 15, Pages: 790-799, ISSN: 0903-1936

Journal article

Chen Y, Quinlan GJ, Anning PB, Evans TW, Gutteridge JMCet al., 1999, Transferrin receptors and ferritin protein levels in heart and lung following LPS treatment, THORAX, Vol: 54, Pages: A13-A13, ISSN: 0040-6376

Journal article

Mumby S, Moran L, Lamb NJ, Gutteridge JMC, Evans TW, Quinlan GJet al., 1999, Inducible haem oxygenase is present in bronchoalveolar lavage (BAL) fluid from patients with ARDS: Associations with oxidative stress and free iron, THORAX, Vol: 54, Pages: A80-A80, ISSN: 0040-6376

Journal article

Lamb NJ, Quinlan GJ, Mumby S, Evans TW, Gutteridge JMCet al., 1999, Haem oxygenase shows pro-oxidant activity in microsomal and cellular systems: implications for the release of low-molecular-mass iron, BIOCHEMICAL JOURNAL, Vol: 344, Pages: 153-158, ISSN: 0264-6021

Journal article

Williams EA, Quinlan GJ, Anning PB, Goldstraw P, Evans TWet al., 1999, Lung injury following pulmonary resection in the isolated, blood-perfused rat lung, EUROPEAN RESPIRATORY JOURNAL, Vol: 14, Pages: 745-750, ISSN: 0903-1936

Journal article

Lamb NJ, Quinlan GJ, Westerman ST, Gutteridge JMC, Evans TWet al., 1999, Nitration of proteins in bronchoalveolar lavage fluid from patients with acute respiratory distress syndrome receiving inhaled nitric oxide, AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 160, Pages: 1031-1034, ISSN: 1073-449X

Journal article

Lamb NJ, Gutteridge JMC, Baker C, Evans TW, Quinlan GJet al., 1999, Oxidative damage to proteins of bronchoalveolar lavage fluid in patients with acute respiratory distress syndrome: Evidence for neutrophil-mediated hydroxylation, nitration, and chlorination, CRITICAL CARE MEDICINE, Vol: 27, Pages: 1738-1744, ISSN: 0090-3493

Journal article

Anning PB, Chen Y, Lamb NJ, Mumby S, Quinlan GJ, Evans TW, Gutteridge JMCet al., 1999, Iron overload upregulates haem oxygenase 1 in the lung more rapidly than in other tissues, FEBS LETTERS, Vol: 447, Pages: 111-114, ISSN: 0014-5793

Journal article

Chen Y, Quinlan GJ, Evans TW, Gutteridge JMCet al., 1999, Expression of transferrin receptor and ferritin mRNA in LPS treated rats: Comparisons between heart and lung, AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 159, Pages: A245-A245, ISSN: 1073-449X

Journal article

Anning PB, Quinlan GJ, Williams EA, Goldstraw P, Evans TWet al., 1999, Lung injury following pulmonary resection in the isolated blood-perfused rat lung., AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 159, Pages: A606-A606, ISSN: 1073-449X

Journal article

Lamb NJ, Quinlan GJ, Evans TW, Gutteridge JMCet al., 1999, Evidence for a pro-oxidant activity of heme oxygenase, AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 159, Pages: A889-A889, ISSN: 1073-449X

Journal article

Chen Y, Quinlan GJ, Nicholson A, Gutteridge JMC, Evans TWet al., 1999, Upregulation of inducible heme oxygenase in patients with ARDS: Possible implication for outcome, AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 159, Pages: A377-A377, ISSN: 1073-449X

Journal article

Anning PB, Chen Y, Lamb NJ, Murphy S, Quinlan GJ, Gulteridge JMC, Evans TWet al., 1999, Iron overloaded rats display a tissue specific, time dependent upregulation of haem oxygenase 1 (HO-1)., AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 159, Pages: A890-A890, ISSN: 1073-449X

Journal article

Lamb NJ, Quinlan GJ, Westerman ST, Gutteridge JMC, Evans TWet al., 1999, Increased tyrosine nitration in broncho-alveolar lavage fluid from patients with ARDS receiving inhaled nitric oxide., AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 159, Pages: A377-A377, ISSN: 1073-449X

Journal article

Quinlan GJ, Westerman ST, Mumby S, Pepper JR, Gutteridge JMCet al., 1999, Plasma hypoxanthine levels during crystalloid and blood cardioplegias: Warm blood cardioplegia increases hypoxanthine levels with a greater risk of oxidative stress, JOURNAL OF CARDIOVASCULAR SURGERY, Vol: 40, Pages: 65-69, ISSN: 0021-9509

Journal article

Lamb NJ, Quinlan GJ, Westerman ST, Gutteridge JMC, Evans TWet al., 1998, Increased tyrosine nitration in bronchoalveolar lavage fluid from patients with ARDS receiving inhaled nitric oxide, Thorax, Vol: 53, ISSN: 0040-6376

Inhaled nitric oxide (NO) improves oxygenation and reduces pulmonary vascular resistance in a proportion of patients with acute respiratory distress syndrome (ARDS). However, NO is also a free radical that reacts with superoxide to form the highly toxic peroxynitrite (ONOO-) anion. ONOO-, or its decomposition products, can nitrate tyrosine to form 3-nitrotyrosine (3NT), which can be used as a marker of peroxynitrite formation. In this study we measured 3-nitrotyrosine in bronchoalveloar lavage (BAL) samples from 10 patients with ARDS receiving NO, and ten patients with comparable lung injury who were not. BAL samples were collected and spun to remove debris. Following hydrolysis, amino acids were purified by ion-exchange and analysed by high performance liquid chromatography (HPLC). Peaks were identified and quantitated by comparison with known standards. Patients receiving inhaled NO showed significantly increased levels of 3NT in their BAL fluid compared to controls (6.76 ± 2.79 vs 0.4 ± 0.15 nmol/mg of protein, p=0.005). No significant correlation was found between levels of inhaled NO and levels of 3NT measured (r = 0.4), suggesting that levels of NO are not the only factor involved in determining the amount of protein nitration. We have demonstrated an association between the use of inhaled NO in patients with ARDS and increased levels of 3-nitrotyrosine. The significance of the protein nitration observed in these patients remains to be evaluated.

Journal article

Lamb NJ, Quinlan GJ, Evans TW, Gutteridge JMCet al., 1998, Evidence for a pro-oxidant activity of heme oxygenase, Thorax, Vol: 53, ISSN: 0040-6376

The acute respiratory distress syndrome (ARDS) is known to be associated with increased oxidative stress. Heme oxygenase (HO) catalyses the intracellular breakdown of heme proteins to biliverdin and bilirubin, with the release of carbon monoxide and free iron. HO-1, a heat shock protein (hsp32), is widely induced under conditions of oxidative stress. Much interest has focused on the antioxidant properties of bilirubin. We investigated the fate of the released free iron in a microsomal system, and demonstrate a pro-oxidant capacity of heme oxygenase. Rat liver microsomes were incubated with liposomes, hemoglobin (Hb, substrate), and NADPH. Microsomes and liposomes alone served as a control. We used the TBA test, to measure μM MDA formed as an index of lipid peroxidation (LPO). Various iron chelators, and an antibody to HO-1 were also added as appropriate controls. On addition of substrate there was an increase in lipid peroxidation (see figure). Figure shows HO-mediated peroxidation of liposomes, (where baseline is microsomes (HO) and liposomes, and the reaction is microsomes, liposomes, Hb, and NADPH. Ab; HO-1 polyclonal antibody). LPO was inhibited to baseline levels by SnPP (tin protoporphyrin, a selective inhibitor of HO). The antibody decreased LPO by 36%. BHT and Vit E, both chain-breaking lipid phase antioxidants, inhibited LPO to baseline levels. The iron chelators desferrioxamine (Df) and EDTA also significantly decreased LPO. We have demonstrated that, in a microsomal-lipid system, HO can exert pro-oxidant activity, which is mediated by free iron. The importance of this reaction is under investigation, and may have wider implications in conditions such as ARDS. (Graph Presented).

Journal article

Quinlan GJ, Margarson MP, Mumby S, Evans TW, Gutteridge JMCet al., 1998, Administration of albumin to patients with sepsis syndrome: a possible beneficial role in plasma thiol repletion, CLINICAL SCIENCE, Vol: 95, Pages: 459-465, ISSN: 0143-5221

Journal article

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: id=00155872&limit=30&person=true&page=4&respub-action=search.html