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Molloy D, McCormick J, Connolly M, Haroon M, Veale D, Fearon U, Molloy E. OP0179 Angiogenesis and blood vessel stability in giant cell arteritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Mcgarry T, Fearon U, Gao W, Jackson M, McCormick J, Veale D, Connolly M. THU0039 B1-Integrin is a Critical Mediator of TLR2-Induced Migrational and Invasive Mechanisms in RA Synovial Fibroblast Cells. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gao W, McCormick J, Connolly M, Veale D, Fearon U. FRI0005 Signal transducer and activator of transcription 3 regulates synovial inflammation through notch/hif1a pathways. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Balogh E, Biniecka M, Connolly M, McCormick J, Veale DJ, Fearon U. OP0257 Interleukin-34 Regulates Angiogenesis and Cell Proliferation in Inflammatory Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gao W, Sweeney C, Walsh C, Rooney P, McCormick J, Fearon U, Veale D. FRI0057 Synovial angiogenesis is mediated through notch signaling pathways. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Rooney P, Gao W, McCormick J, Harty L, Veale D, Fearon U, Connolly M. OP0219 TLR2 differentially mediates A-SAA induced pro-inflammatory pathways in rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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McGarry T, Connolly M, Gao W, McCormick J, Veale D, Fearon U. AB0108 BETA-1 integrin is a critical mediator of TLR2-induced cell migration and invasion in RA. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Maher A, Molloy D, McCormick J, O’Neill L, Veale D, Murphy C, Fearon U, Molloy E. OP0210 TLR-2 Induces Pro-Inflammatory/Angiogenic Mechanisms in GCA Temporal Artery Explant Cultures Ex Vivo. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Balogh E, Veale DJ, McCormick J, Szekanecz Z, NG CT, Fearon U, Biniecka M. THU0075 Hypoxia Drives Angiogenesis in Inflammatory Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Jensen JM, Mose FH, Bech JN, Pedersen EB, Saritas T, Borschewski A, McCormick J, Paliege A, Dathe C, Uchida S, Bleich M, Himmerkus N, Delpire E, Ellison D, Bachmann S, Mutig K. Fine-tuning of sodium transport in the distal nephron. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft182] [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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Dickerson M, McCormick J, Mispelon M, Paisley K, Nichols R. Structure-activity and immunochemical data provide evidence of developmental- and tissue-specific myosuppressin signaling. Peptides 2012; 36:272-9. [PMID: 22613084 PMCID: PMC3449313 DOI: 10.1016/j.peptides.2012.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 05/03/2012] [Accepted: 05/04/2012] [Indexed: 11/16/2022]
Abstract
Myosuppressin peptides dramatically diminish contractions of the gut and heart. Thus, delineating mechanisms involved in myosuppressin signaling may provide insight into peptidergic control of muscle contractility. Drosophila myosuppressin (DMS, TDVDHVFLRFamide) structure-activity relationship (SAR) was investigated to identify an antagonist and explore signaling. Alanyl-substituted, N-terminal truncated, and modified amino acid analogs identified residues and peptide length required for activity. Immunochemistry independently provided insight into myosuppressin mechanisms. DMS decreased gut motility and cardiac contractility dose dependently; the different effective concentrations at half maximal-response were indicative of tissue-specific mechanisms. Replacement of aspartic acid 2 (D2) generated an analog with different developmental- and tissue-specific effects; [A2] DMS mimicked DMS in adult gut (100% inhibition), yet decreased larval gut contractions by only 32% with increased potency in pupal heart (126% inhibition). The DMS active core differed across development and in tissues; adult (DHVFLRFamide) and larval gut (TDVDHVFLRFamide), and adult (VFLRFamide) and pupal heart (VFLRFamide). Substitution of D2 and D4 with a modified amino acid, p-benzoyl-phenylalanine, produced developmental- and tissue-specific antagonists. In the presence of protease inhibitors, DMS and VFLRFamide were more effective in adult gut, but lower or unchanged in pupal heart compared to peptide or analog alone, respectively. DMS-specific antisera stained neurons that innervated the gut or heart. This study describes novel antagonists and data to identify developmental- and tissue-specific mechanisms underlying the pleotropic effects of myosuppressin in muscle physiology.
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McCormick J, Suleman N, Scarabelli TM, Knight RA, Latchman DS, Stephanou A. STAT1 deficiency in the heart protects against myocardial infarction by enhancing autophagy. J Cell Mol Med 2012; 16:386-93. [PMID: 21447043 PMCID: PMC3823301 DOI: 10.1111/j.1582-4934.2011.01323.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Previous studies have shown that the transcription factor signal transducer and activator of transcription 1 (STAT1) activation is increased in primary cardiac myocytes exposed to simulated ischaemia/reperfusion injury. This promotes apoptotic cell death by enhancing the expression of pro-apoptotic proteins. Autophagy has been demonstrated to play a cardioprotective role in the heart following myocardial infarction (MI). We therefore investigated the role of STAT1 in the intact heart subjected to MI and examined the contribution of autophagy in modulating the protective effect of STAT1 after MI injury. STAT1-deficient hearts had significantly smaller infarcts than wild-type hearts and this correlated with increased levels of autophagy shown by light chain 3 (LC3)-I/LC3-II conversion, and up-regulation of Atg12 and Beclin 1. Moreover, pre-treatment with the autophagy inhibitor 3-methyladenine reversed the cardioprotection observed in the STAT1-deficient hearts. These results reveal a new function of STAT1 in the control of autophagy and indicate a cross-talk between the cardioprotective versus the damaging effects of STAT1 in the intact heart exposed to MI injury.
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McCormick J, Jonas N, Ramsay R, Sabharwal V. Vigabatrin: A Novel Approach for Treatment of Super Refractory Status Epilepticus, a Case Study of 2 Patients (P01.079). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p01.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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McGarry T, Connolly M, McCormick J, Gao W, Veale DJ, Fearon U. β1 integrin mediates toll-like receptor 2 induced migration and invasion via rac1 activation. Ann Rheum Dis 2012. [DOI: 10.1136/annrheumdis-2011-201238.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Coakley DN, Moloney T, McCormick J, Shaikh FM, Grace PA. Venous drainage, a simple method to prevent the systemic consequences of ischaemia-reperfusion injury in acute lower limb ischaemia. Ir J Med Sci 2011; 179:131-3. [PMID: 19730933 DOI: 10.1007/s11845-009-0421-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Accepted: 08/09/2009] [Indexed: 11/30/2022]
Abstract
BACKGROUND Ischaemia-reperfusion injury (I-R injury) is a recognised and potentially fatal complication following revascularisation of an ischaemic limb. Prevention of reperfusion injury is the focus of much research, but effective drug regimens have yet to be established into clinical practice. CASE REPORT Here we present a man with prolonged, severe lower limb ischaemia, successfully treated with a novel surgical technique for preventing I-R injury. Prior to revascularisation, the common femoral vein was cannulated and the harmful venous effluent was drained. The patient made an excellent recovery, the limb was salvaged and no systemic complications were encountered.
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Mullan RH, McCormick J, Connolly M, Ng CT, Fearon U, Veale DJ. A-SAA induces cytokine production and matrix metalloproteinase activity in adipose and RA synovial tissue. Ann Rheum Dis 2011. [DOI: 10.1136/ard.2010.149021.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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68
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Harty LC, McCormick J, Connolly M, Fearon U, Veale DJ. Smoking interferes with therapy of RA and PsA, induces chemotaxis and impairs vascular function in RA. Ann Rheum Dis 2011. [DOI: 10.1136/ard.2010.149096.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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69
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Ng CT, Biniecka M, Kennedy A, McCormick J, Fitzgerald O, Bresnihan B, Buggy D, Taylor CT, O'Sullivan J, Fearon U, Veale DJ. Synovial tissue hypoxia and inflammation in vivo. Ann Rheum Dis 2010; 69:1389-95. [PMID: 20439288 PMCID: PMC2946116 DOI: 10.1136/ard.2009.119776] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
INTRODUCTION Hypoxia is a microenvironmental feature in the inflamed joint, which promotes survival advantage for cells. The aim of this study was to examine the relationship of partial oxygen pressure in the synovial tissue (tPO(2)) in patients with inflammatory arthritis with macroscopic/microscopic inflammation and local levels of proinflammatory mediators. METHODS Patients with inflammatory arthritis underwent full clinical assessment and video arthroscopy to quantify macroscopic synovitis and measure synovial tPO(2) under direct visualisation. Cell specific markers (CD3 (T cells), CD68 (macrophages), Ki67 (cell proliferation) and terminal deoxynucleotidyl transferase dUTP nick end labelling (cell apoptosis)) were quantified by immunohistology. In vitro migration was assessed in primary and normal synoviocytes (synovial fibroblast cells (SFCs)) using a wound repair scratch assay. Levels of tumour necrosis factor alpha (TNFalpha), interleukin 1beta (IL1beta), interferon gamma (IFNgamma), IL6, macrophage inflammatory protein 3alpha (MIP3alpha) and IL8 were quantified, in matched serum and synovial fluid, by multiplex cytokine assay and ELISA. RESULTS The tPO(2) was 22.5 (range 3.2-54.1) mm Hg and correlated inversely with macroscopic synovitis (r=-0.421, p=0.02), sublining CD3 cells (-0.611, p<0.01) and sublining CD68 cells (r=-0.615, p<0.001). No relationship with cell proliferation or apoptosis was found. Primary and normal SFCs exposed to 1% and 3% oxygen (reflecting the median tPO(2) in vivo) induced cell migration. This was coupled with significantly higher levels of synovial fluid tumour necrosis factor alpha (TNFalpha), IL1beta, IFNgamma and MIP3alpha in patients with tPO(2) <20 mm Hg (all p values <0.05). CONCLUSIONS This is the first study to show a direct in vivo correlation between synovial tPO(2), inflammation and cell migration, thus it is proposed that hypoxia is a possible primary driver of inflammatory processes in the arthritic joint.
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McCormick J, Whitley GSJ, Le Bouteiller P, Cartwright JE. Soluble HLA-G regulates motility and invasion of the trophoblast-derived cell line SGHPL-4. Hum Reprod 2009; 24:1339-45. [DOI: 10.1093/humrep/dep026] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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71
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Gaudi BS, Bennett DP, Udalski A, Gould A, Christie GW, Maoz D, Dong S, McCormick J, Szymański MK, Tristram PJ, Nikolaev S, Paczyński B, Kubiak M, Pietrzyński G, Soszyński I, Szewczyk O, Ulaczyk K, Wyrzykowski Ł, DePoy DL, Han C, Kaspi S, Lee CU, Mallia F, Natusch T, Pogge RW, Park BG, Abe F, Bond IA, Botzler CS, Fukui A, Hearnshaw JB, Itow Y, Kamiya K, Korpela AV, Kilmartin PM, Lin W, Masuda K, Matsubara Y, Motomura M, Muraki Y, Nakamura S, Okumura T, Ohnishi K, Rattenbury NJ, Sako T, Saito T, Sato S, Skuljan L, Sullivan DJ, Sumi T, Sweatman WL, Yock PCM, Albrow MD, Allan A, Beaulieu JP, Burgdorf MJ, Cook KH, Coutures C, Dominik M, Dieters S, Fouqué P, Greenhill J, Horne K, Steele I, Tsapras Y, Chaboyer B, Crocker A, Frank S, Macintosh B. Discovery of a Jupiter/Saturn Analog with Gravitational Microlensing. Science 2008; 319:927-30. [DOI: 10.1126/science.1151947] [Citation(s) in RCA: 281] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Courtney D, Castillo D, McCormick J, Steinberg J. High Pretest Probability Pulmonary Embolism: Prospective Comparison of the Wells Score vs. Unstructured Physician Estimation. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tanabe P, Persell S, Adams J, McCormick J, Martinovich Z, Baker D. Elevated Blood Pressures in the ED: Pain, Anxiety, or Undiagnosed Hypertension. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Courtney D, McCormick J, Steinberg J. Prospective Evaluation of a Quantitative D-dimer for Pulmonary Embolism: Is Structured Pretest Probability Assessment Necessary? Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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75
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Tanabe P, Persell S, Adams J, McCormick J, Martinovich Z, Baker D. Do Patients with Elevated BP in the ED have Persistently Elevated BP on Home Monitoring? Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.1031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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McCormick J, Conway SP, Mehta A. Paediatric Northern Score centile charts for the chest radiograph in cystic fibrosis. Clin Radiol 2007; 62:78-81. [PMID: 17145268 DOI: 10.1016/j.crad.2006.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2006] [Revised: 08/29/2006] [Accepted: 09/10/2006] [Indexed: 11/21/2022]
Abstract
AIM To create the first national centile charts for the chest radiograph Northern Score using the UK Cystic Fibrosis (CF) Database (UKCFD). MATERIALS AND METHODS All active patients for 2002 from the UKCFD were analysed in 1-year cohorts from 0 to 18 years. Northern Score results from the annual review forms were used to construct centile lines for the 5th, 25th, 50th, 75th, 95th centiles. RESULTS There were 1806 patients with recorded Northern Score data for 2002 (927 male patients, male:female ratio 1.05). The centile chart demonstrates a quasi-linear rise throughout childhood. A Northern Score in excess of age in years equates to >95th centile in school-aged CF patients. CONCLUSION This centile chart provides a disease-specific reference range for monitoring individual patients or for evaluating therapeutic change using the dominant chest radiograph scoring system in the UK. Patients, parents and clinicians may find these useful during the annual review process.
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Lawrence KM, Kabir AMN, Bellahcene M, Davidson S, Cao XB, McCormick J, Mesquita RA, Carroll CJ, Chanalaris A, Townsend PA, Hubank M, Stephanou A, Knight RA, Marber MS, Latchman DS. Cardioprotection mediated by urocortin is dependent upon PKCε activation. FASEB J 2005; 19:831-3. [PMID: 15764590 DOI: 10.1096/fj.04-2506fje] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Urocortin (Ucn) is an endogenous cardioprotective agent that protects against the damaging effects of ischemia and reperfusion injury in vitro and in vivo. We have found that the mechanism of action of Ucn involves both acute activation of specific target molecules, and using Affymetrix (Santa Clara, CA) gene chip technology, altered gene expression of different end effector molecules. Here, from our gene chip data, we show that after a 24 h exposure to Ucn, there was a specific increase in mRNA and protein levels of the protein kinase C epsilon (PKCepsilon) isozyme in primary rat cardiomyocytes compared with untreated cells and in the Langendorff perfused ex vivo heart. Furthermore, a short 10 min exposure of these cells to Ucn caused a specific translocation/activation of PKCepsilon in vitro and in the Langendorff perfused ex vivo heart. The importance of the PKCepsilon isozyme in cardioprotection and its relationship to cardioprotection produced by Ucn was assessed using PKCepsilon-specific inhibitor peptides. The inhibitor peptide, when introduced into cardiomyocytes, caused an increase in apoptotic cell death compared with control peptide after ischemia and reperfusion. When the inhibitor peptide was present with Ucn, the cardioprotective effect of Ucn was lost. This loss of cardioprotection by Ucn was also seen in whole hearts from PKCepsilon knockout mice. These findings indicate that the cardioprotective effect of Ucn is dependent upon PKCepsilon.
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Achalla P, McCormick J, Hodge T, Moreland C, Esnault P, Karim A, Raghavan D. Characterization of elastomeric blends by atomic force microscopy. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/polb.20679] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Alousi AM, Parchment R, Boinpally R, Gadgeel S, Weigand R, McCormick J, Lorusso P. Phase I clinical trial of XK469 in patients with chemo-refractory solid tumors. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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81
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Liang H, O'Reilly S, Liu Y, Abounader R, Laterra J, Maher V, McCormick J. Sp1 regulates expression of MET, and ribozyme-induced down-regulation of MET in fibrosarcoma-derived human cells reduces or eliminates their tumorigenicity. Int J Oncol 2004. [DOI: 10.3892/ijo.24.5.1057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Burris H, LoRusso P, Jones S, McCormick J, Willcutt N, Hodge J, Bush P, Pandite L, Sabry J, Ho P. 570 A phase I study to determine the safety and pharmacokinetics of intravenous administration of SB715992 on a once weekly for three consecutive weeks schedule in patients with refractory solid tumors. EJC Suppl 2003. [DOI: 10.1016/s1359-6349(03)90602-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Boeve B, McCormick J, Smith G, Ferman T, Rummans T, Carpenter T, Ivnik R, Kokmen E, Tangalos E, Edland S, Knopman D, Petersen R. Mild cognitive impairment in the oldest old. Neurology 2003; 60:477-80. [PMID: 12578930 DOI: 10.1212/wnl.60.3.477] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND No data exist on whether the syndrome of amnestic mild cognitive impairment occurs in the oldest old, or if the relationships for functional status and neuropsychometric performance based on clinical diagnosis hold true in this age group. DESIGN/METHODS The authors performed comprehensive neurologic evaluations, neuropsychometric testing, and functional assessments on a sample of 90- to 100-year-old residents of Rochester, MN. Subjects were diagnosed as normal or with amnestic mild cognitive impairment (MCI) or dementia according to well-accepted criteria. Data on the following measures were collected and analyzed: Record of Independent Living (ROIL), Mini-Mental State Examination (MMSE), Dementia Rating Scale (DRS), Trailmaking Test (TMT), and modified version of the Free and Cued Selective Reminding Test (FCSRT). RESULTS Data on 111 subjects (56 normal, 13 MCI, and 42 dementia) were analyzed. On the ROIL, functional capacity to carry out activities of daily living was worse for patients with dementia compared to patients with MCI and normal subjects, but did not differ between MCI and normal subjects. Scores on the MMSE, DRS, and TMT-A were worse in the dementia group compared to the normal group, and in the dementia group compared to MCI, but scores on these measures for normal subjects compared to patients with MCI were not different. Scores on the FCSRT and memory subtest of the DRS showed differences among all three groups. CONCLUSION In spite of the advanced age of the cohort, the relationship between cognitive and functional performance and clinical diagnosis follows patterns previously described in younger samples of normal subjects, subjects with amnestic mild cognitive impairment, and subjects with dementia.
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Madison V, Duca J, Bennett F, Bohanon S, Cooper A, Chu M, Desai J, Girijavallabhan V, Hare R, Hruza A, Hendrata S, Huang Y, Kravec C, Malcolm B, McCormick J, Miesel L, Ramanathan L, Reichert P, Saksena A, Wang J, Weber PC, Zhu H, Fischmann T. Binding affinities and geometries of various metal ligands in peptide deformylase inhibitors. Biophys Chem 2002; 101-102:239-47. [PMID: 12488004 DOI: 10.1016/s0301-4622(02)00179-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Removal of the N-terminal formyl group from newly synthesized proteins by the enzyme peptide deformylase (PDF) is essential for normal growth of bacteria but not higher organisms. Recently, PDF has been explored as a target for novel antibiotics. Screening a collection of natural products for antimicrobial activity identified actinonin and two matlystatin analogs as potent PDF inhibitors. A number of synthetic analogs of these natural products were prepared and their inhibitory potency determined. Previous work has shown that PDF is an iron metalloproteinase also containing a catalytic glutamic acid residue. Ligation of the ferrous cation is an essential feature of potent inhibitors. The structures of actinonin, a matlystatin analog and a synthetic inhibitor complexed with PDF were determined by crystallography. A quantum mechanics/molecular mechanics (QM/MM) method was used to reproduce the geometry of known complexes, to predict the protonation state in the active site and to predict the geometry of additional complexes. The requirement for protonation of the active site glutamate anion is an important factor in understanding the potency of inhibitors with acidic iron-ligating groups such as hydroxamate and carboxylate. Even though potent inhibitors of PDF have been discovered, their bacteriostatic mechanism of action and the rapid development of resistance in vitro may limit their potential as antibacterial drugs.
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McCormick J, Blackwood B. Nursing the ARDS patient in the prone position: the experience of qualified ICU nurses. Intensive Crit Care Nurs 2001; 17:331-40. [PMID: 11853009 DOI: 10.1054/iccn.2001.1611] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The revival of the use of the prone position as a treatment for acute respiratory distress syndrome (ARDS) has been well documented in the medical literature, but there is little information regarding the difficulties of nursing patients in this position. The purpose of this study was to increase the body of knowledge by exploring the experiences of nurses who had cared for a patient in the prone position. A questionnaire was sent to all registered nurses in four large intensive care units (ICUs) to determine the main areas of concern when nursing patients in the prone position. There was a 62% response rate. Following this, a sample of 12 nurses volunteered to participate in three focus group interviews to further explore the issues. The main difficulties experienced related to the manoeuvre, including the timing of the move, the number of personnel and the co-ordination required. Problems experienced in providing nursing care related to pressure areas, suctioning, accidental injuries and management of emergencies. Deficits in knowledge of ARDS and skills in handling communication with relatives were also identified. As a result of this exploration, guidelines have been developed, focusing mainly on the manoeuvre, organizational and nursing issues, to provide guidance in caring for a patient when being nursed in the prone position.
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McCormick J. The school of hard knocks. NEWSWEEK 2000; 136:46-8. [PMID: 11185356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Valentinis B, Navarro M, Zanocco-Marani T, Edmonds P, McCormick J, Morrione A, Sacchi A, Romano G, Reiss K, Baserga R. Insulin receptor substrate-1, p70S6K, and cell size in transformation and differentiation of hemopoietic cells. J Biol Chem 2000; 275:25451-9. [PMID: 10846175 DOI: 10.1074/jbc.m002271200] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
After an initial burst of cell proliferation, the type 1 insulin-like growth factor receptor (IGF-IR) induces granulocytic differentiation of 32D IGF-IR cells, an interleukin-3-dependent murine hemopoietic cell line devoid of insulin receptor substrate-1 (IRS-1). The combined expression of the IGF-IR and IRS-1 (32D IGF-IR/IRS-1 cells) inhibits IGF-I-mediated differentiation, and causes malignant transformation of 32D cells. Because of the role of IRS-1 in changing the fate of 32D IGF-IR cells from differentiation (and subsequent cell death) to malignant transformation, we have looked for differences in IGF-IR signaling between 32D IGF-IR and 32D IGF-IR/IRS-1 cells. In this report, we have focused on p70(S6K), which is activated by the IRS-1 pathway. We find that the ectopic expression of IRS-1 and the inhibition of differentiation correlated with a sustained activation of p70(S6K) and an increase in cell size. Phosphorylation in vivo of threonine 389 and, to a lesser extent, of threonine 421/serine 424 of p70(S6K) seemed to be a requirement for inhibition of differentiation. A role of IRS-1 and p70(S6K) in the alternative between transformation or differentiation of 32D IGF-IR cells was confirmed by findings that inhibition of p70(S6K) activation or IRS-1 signaling, by rapamycin or okadaic acid, induced differentiation of 32D IGF-IR/IRS-1 cells. We have also found that the expression of myeloperoxidase mRNA (a marker of differentiation, which sharply increases in 32D IGF-IR cells), does not increase in 32D IGF-IR/IRS-1 cells, suggesting that the expression of IRS-1 in 32D IGF-IR cells causes the extinction of the differentiation program initiated by the IGF-IR, while leaving intact its proliferation program.
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89
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Beel TL, Mitchiner JC, Frederiksen SM, McCormick J. Patient preferences regarding pain medication in the ED. Am J Emerg Med 2000; 18:376-80. [PMID: 10919522 DOI: 10.1053/ajem.2000.7313] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Previous studies have reported inadequate pain control in the emergency department (ED). The primary purpose of this study was to determine the proportion of ED patients with acute fractures who actually wanted pain medication given in the ED. A convenience sample of 107 adults with acute long-bone fractures seen in a community hospital ED were surveyed on the pain level they had on ED presentation, the pain level desired at ED discharge, and their preferences for administration of analgesia in the ED. Eighty-eight percent of the patients wanted pain medication given in the ED and 77% actually received it. Sixty-nine percent were comfortable with a nurse administering pain medication before physician evaluation. Seventy percent wanted pain control without being sedated and 25% wanted complete pain relief even if sedation was necessary to achieve it. Sixty percent were either slightly concerned or not concerned about potential medication side effects.
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90
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Zellers TM, Wu YQ, McCormick J, Vanhoutte PM. Prostacyclin-induced relaxations of small porcine pulmonary arteries are enhanced by the basal release of endothelium-derived nitric oxide through an effect on cyclic GMP-inhibited-cyclic AMP phosphodiesterase. Acta Pharmacol Sin 2000; 21:131-8. [PMID: 11263259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
AIM To study the interactions between prostacyclin and endothelium-derived nitric oxide in porcine pulmonary arteries. METHODS Rings of 5th order of porcine pulmonary arteries were studied in vitro for the measurement of tension and the content in cyclic nucleotides. RESULTS Prostacyclin, given exogenously, caused endothelium-potentiated relaxations (inhibition of phenylephrine contraction) that were inhibited by the inhibitors of the L-arginine nitric oxide pathway, oxyhemoglobin and N omega-nitro-L-arginine. These inhibitors did not affect the tension in rings without endothelium. Cyclic GMP-concentrations were not increased above basal concentrations in the presence of prostacyclin. Increases were seen with acetylcholine and sodium nitroprusside. Prostacyclin-stimulated cyclic AMP concentrations did not reach statistical significance compared to controls. The addition of 8-bromo-cyclic GMP to prostacyclin, however, increased the cyclic AMP content. The nitric oxide synthase inhibitor, nitro-L-arginine (NLA), reduced the prostacyclin-stimulated cyclic AMP content to basal level. Inhibition of cyclic GMP-inhibited cyclic AMP phosphodiesterase by 8-bromo-cyclic GMP or amrinone (a specific inhibitor of this enzyme) potentiated the prostacyclin-induced relaxations in rings without endothelium to a magnitude similar to that observed in rings with endothelium. CONCLUSION These data suggest that the augmentation by the endothelium of the prostacyclin-induced relaxation of porcine pulmonary arteries is secondary to the inhibition of cyclic GMP-inhibited cyclic AMP phosphodiesterase by basally released endothelium-derived nitric oxide.
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91
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Nuijten M, McCormick J, Waibel F, Parison D. Economic evaluation of letrozole in the treatment of advanced breast cancer in postmenopausal women in Canada. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2000; 3:31-9. [PMID: 16464179 DOI: 10.1046/j.1524-4733.2000.31004.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
OBJECTIVE To determine the cost-effectiveness of initiation of second-line hormone therapy with letrozole in the treatment of advanced breast cancer in postmenopausal women in Canada, compared to megestrol acetate. METHODS A modified Markov model, incorporating seven health states, was designed to simulate the treatment of patients with advanced breast cancer from second-line hormone therapy to death. The model was constructed with data from a clinical trial, literature sources, and interviews with breast cancer treatment experts. Canadian experts provided information on resource utilization patterns and local costs were attached to these resources. The model was used to calculate mean survival time, time without progression, and total direct medical costs for patients initiating treatment with letrozole 2.5 mg or megestrol acetate 160 mg. RESULTS The mean survival time and time without progression for letrozole 2.5 mg patients were 28.3 months and 19.0 months, respectively, compared to 25.7 months and 16.5 months for megestrol acetate 160 mg patients. Total treatment costs for both groups were similar with the letrozole 2.5 mg group costing dollar 20,068 per patient, dollar 1061 more than the megestrol acetate 160 mg group (dollar CAN, 1996). The cost-effectiveness ratio for letrozole 2.5 mg with respect to megestrol was dollar 5051 per year of life gained. Sensitivity analysis showed that this ratio was sensitive to variations in the probabilities governing disease progression. CONCLUSIONS Advanced breast cancer patients initiating second-line hormone therapy with letrozole 2.5 mg have better clinical outcomes than patients receiving megestrol acetate 160 mg. Furthermore, this benefit comes at an acceptable cost to the Canadian health care system.
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92
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Prebble TB, Chyou PH, Wittman L, McCormick J, Collins K, Zoch T. Basketball injuries in a rural area. WMJ : OFFICIAL PUBLICATION OF THE STATE MEDICAL SOCIETY OF WISCONSIN 1999; 98:22-4. [PMID: 10638288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
This study was conducted to determine the frequency and nature of basketball injuries occurring in a rural setting. More than 6000 patients with sports-related injuries presented to a rural emergency department between June 1, 1988 and June 1, 1994. Of these patients, 1189 (19% of the total) were injured playing basketball. A chart abstraction form was utilized to retrospectively review injuries noting demographics, types and sites of injuries, as well as referral and treatment plans. Approximately two-thirds (66.4%) of those injured were males, with most injuries (53%) occurring during school-related activities. Almost four-fifths (78%) of injuries occurred between the ages of 10 and 19. The ankle (33.1%) was the body site most commonly injured, followed in frequency by finger injuries (19.3%), sprains and strains, which accounted for the majority (55%) of injuries. The most common mechanism of injury was recorded in which no contact with other players occurred (37.4%). The vast majority (99%) of injuries were managed as outpatients. The majority of cases (72%) were expected to recover within 2 weeks. Similarities were noted regarding sites of injury and age of distribution of patients when compared to the previous studies.
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93
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Combes R, Balls M, Curren R, Fischbach M, Fusenig N, Kirkland D, Lasne C, Landolph J, LeBoeuf R, Marquardt H, McCormick J, Müller L, Rivedal E, Sabbioni E, Tanaka N, Vasseur P, Yamasaki H. Cell transformation assays as predictors of human carcinogenicity. Altern Lab Anim 1999; 27:745-67. [PMID: 25490287 DOI: 10.1177/026119299902700505] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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94
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McCormick J, Lim I, Nichols R. Neuropeptide precursor processing detected by triple immunolabeling. Cell Tissue Res 1999; 297:197-202. [PMID: 10470489 DOI: 10.1007/s004410051347] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Peptides that play critical physiological roles are often encoded in precursors that contain several gene products. Differential processing of a polypeptide precursor by cell-specific proteolytic enzymes can yield multiple messengers with diverse distributions and functions. We have isolated SDNFMRFamide, DPKQDFMRFamide, and TPAEDFMRFamide from Drosophila melanogaster. The peptides are encoded in the FMRFamide gene and have a common C-terminal FMRFamide but different N-terminal extensions. In order to investigate the regulation of expression of FMRFamide peptides, we generated antisera to distinguish between the structurally related neuropeptides. We established a triple-label immunofluorescence protocol using antisera raised in the same host species and mapped the neural distribution of SDNFMRFamide, DPKQDFMRFamide, and TPAEDFMRFamide. Each peptide has a unique, nonoverlapping cellular expression pattern, suggesting that the precursor is differentially processed. Thus, our data indicate that D. melanogaster contains cell-specific proteolytic enzymes to cleave a polypeptide protein precursor, resulting in unique expression patterns of neuropeptides.
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95
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Law B, Fitzsimon C, Ford-Jones L, McCormick J, Rivière M. Cost of chickenpox in Canada: part II. Cost of complicated cases and total economic impact. The Immunization Monitoring Program-Active (IMPACT). Pediatrics 1999; 104:7-14. [PMID: 10390253 DOI: 10.1542/peds.104.1.7] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Primarily, to determine the direct medical costs and productivity losses associated with complicated chickenpox (hospitalized cases) and, secondarily, to quantify the overall economic burden of chickenpox in Canada. METHODS Direct medical resource consumption patterns were determined by chart review of 160 otherwise healthy children and 40 children with leukemia hospitalized for chickenpox. Children were selected from the database of the Immunization Monitoring Program Active (IMPACT), a network of 11 tertiary-care hospitals in Canada that collected information at the time of hospitalization from January 1991 to March 1996. An additional 26 healthy children hospitalized were recruited prospectively by IMPACT. Productivity losses (time lost from work and daily activities) were assessed by caregiver interviews. Treatment costs were determined from the patient, Ministry of Health, and societal perspectives. RESULTS The average societal per case cost for complicated chickenpox in healthy children was $7060 and $8398, respectively, from the retrospective and prospective assessments. For children with leukemia, the direct medical cost was estimated at $7228. These costs were combined with a cost established previously for uncomplicated chickenpox. The estimated yearly overall economic impact of chickenpox in Canada was $122.4 million, with $24.0 million attributable to Ministry of Health costs, assuming an estimated yearly incidence of 346 527 cases and a 0.54% rate of hospitalization for healthy children. CONCLUSIONS Direct medical costs are the major cost driver in the care of complicated chickenpox. However, in the context of the overall economic burden of the disease, uncomplicated chickenpox is the major cost driver, contributing 89% to the total cost.
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McCormick J. Wireless hospitals: new wave in healthcare technology. HEALTH MANAGEMENT TECHNOLOGY 1999; 20:12-3. [PMID: 10538649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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97
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Abstract
Physiologically important peptides are often encoded in precursors that contain several gene products; thus, regulation of expression of polypeptide proteins is crucial to transduction pathways. Differential processing of precursors by cell- or tissue-specific proteolytic enzymes can yield messengers with diverse distributions and dissimilar activities. FMRFamide-related peptides (FaRPs) are present throughout the animal kingdom and affect both neural and gastrointestinal functions. Organisms have several genes encoding numerous FaRPs with a common C-terminal structure but different N-terminal amino acid extensions. We have isolated SDNFMRFamide, DPKQDFMRFamide, and TPAEDFMRFamide contained in the Drosophila FMRFamide gene. To investigate the regulation of expression of FMRFamide peptides, we generated antisera to distinguish among the three neuropeptides. We have previously reported the distribution of SDNFMRFamide and DPKQDFMRFamide. In this article, we describe TPAEDFMRFamide expression. TPAEDFMRFamide antisera stain cells in embryonic, larval, pupal, and adult thoracic and abdominal ganglia. In addition, TPAEDFMRFamide-immunoreactive material is present in a lateral protocerebrum cell in adult. Thus, TPAEDFMRFamide antisera staining of neural tissue is different from SDNFMRFamide or DPKQDFMRFamide. In addition, TPAEDFMRFamide antisera stain larval, pupal, and adult gut, while SDNFMRFamide and DPKQDFMRFamide do not. TPAEDFMRFamide immunoreactivity is present in cells stained by FMRFamide antisera. Taken together, these data support the conclusion that TPAEDFMRFamide is differentially processed from the FMRFamide polypeptide protein precursor and may act in both neural and gastrointestinal tissue.
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Nichols R, McCormick J, Cohen M, Howe E, Jean C, Paisley K, Rosario C. Differential processing of neuropeptides influences Drosophila heart rate. J Neurogenet 1999; 13:89-104. [PMID: 10858818 DOI: 10.3109/01677069909083468] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Peptides that play critical physiological roles are often encoded in precursors that contain several structurally-related gene products. Differential processing of a precursor by cell-specific processing enzymes can yield multiple messengers with diverse distributions and activities. We have reported the isolation of SDNFMRFamide, DPKQDFMRFamide, and TPAEDFMRFamide from adult Drosophila melanogaster. The peptides are encoded in the FMRFamide gene and have a common C-terminal FMRFamide but different N-terminal extensions. In order to investigate the processing of the FMRFamide polypeptide protein precursor, we generated antisera to distinguish among the structurally-related neuropeptides. Utilizing a triple-label immunofluorescent protocol, we mapped the distribution of the peptides. Each peptide has a unique, non-overlapping cellular expression pattern in neural tissue suggesting that the precursor is differentially processed. In order to identify a biological activity of the peptides, we established an in vivo heart rate assay. SDNFMRFamide decreases heart rate but DPKQDFMRFamide and TPAEDFMRFamide do not, indicating that the N-terminal residues are critical for this activity. SDNFMRFamide immunoreactivity is present in the aorta, implying that SDNFMRFamide acts locally to affect heart rate; DPKQDFMRFamide and TPAEDFMRFamide antisera do not stain cardiac tissue. Our data support the conclusion that Drosophila contains cell-specific proteolytic enzymes to differentially process a polypeptide protein precursor resulting in unique expression patterns of structurally-related, yet functionally distinct neuropeptides.
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Abstract
This report describes the case of a man who presented in a delayed manner after blunt trauma with bilateral chylothoraces, a rare result of trauma. He presented with shortness of breath and chest pain. A diagnostic workup resulted in the determination of traumatic chylothorax. His course in the hospital identified a disruption at a level of the 5th thoracic vertebra. No surgical ligation was required because his leak spontaneously sealed after conservative measures. The anatomy, physiology, mechanisms, and management of this injury are discussed.
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100
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Huang S, Maher VM, McCormick J. Involvement of intermediary metabolites in the pathway of extracellular Ca2+-induced mitogen-activated protein kinase activation in human fibroblasts. Cell Signal 1999; 11:263-74. [PMID: 10372804 DOI: 10.1016/s0898-6568(98)00051-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Human fibroblasts in culture will grow in serum-free medium containing serum replacement factors, but without protein growth factors, as long as the Ca2+ level is 1.0-2.0 mM. When the Ca2+ is reduced to 0.1 mM, the cells stop cycling, but they can be reinduced to cycle by raising the Ca2+ level to 1.0 mM Ca2+ or to higher concentrations that result in activation of mitogen-activated protein kinase (MAPK). We now report that exposure of human fibroblasts to extracellular Ca2+ increased the level of inositol (1,4,5)-trisphosphate in the cytoplasm and caused a transient rise in the concentration of intracellular free Ca2+. Ca2+-induced MAPK activation was partly abolished by treatment of the cells with pertussis toxin. It was also decreased by treatment of cells with thapsigargin, which depletes intracellular Ca2+ stores; with phorbol 12-myristyl 13-acetate (PMA), which down-regulates protein kinase C (PKC); with the calmodulin antagonists N-(6-aminohexyl)-5-chloro-1-naphthalenesulphonamide HCl (W-7), and calmidazolium (24571); as well as with lanthanum, a Ca2+ channel inhibitor. Ca2+ stimulation did not result in phosphorylation of the c-raf-1 protein. Our results suggest that extracellular Ca2+ stimulates MAPK activation through a pathway(s) involving a pertussis toxin-sensitive G protein, phospholipase C, intracellular free Ca2+, calmodulin, and PKC.
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