1
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Myers C, Bennett K, Kelly C, Walshe J, O'Sullivan N, Quinn M, Lyons T, Weadick C, Cahir C. Impact of COVID-19 on health care and quality of life in women with breast cancer. JNCI Cancer Spectr 2023; 7:7167390. [PMID: 37199377 DOI: 10.1093/jncics/pkad033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 03/21/2023] [Accepted: 04/22/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND The aims of this study were to explore the impact of COVID-19 on health-care services and quality of life (QoL) in women diagnosed with breast cancer (BC) in Ireland and whether the impact varied by social determinants of health (SDH). METHODS Women diagnosed with BC completed a questionnaire measuring the impact of COVID-19, disruption to BC services, QoL, SDH, and clinical covariates during COVID-19 restrictions. The association between COVID-19 impact and disruption to BC services and QoL was assessed using multivariable regression with adjustment for SDH and clinical covariates. An interaction between COVID-19 impact and health insurance status was assessed within the regression models. RESULTS A total of 30.5% (n = 109) of women reported high COVID-19 impact, and these women experienced more disruption in BC services (odds ratio = 4.95, 95% confidence interval = 2.28 to 10.7, P < .001) and lower QoL (β = -12.01, SE = 3.37, P < .001) compared with women who reported low COVID-19 impact. Health insurance status moderated the effect of COVID-19 on disruption to BC services and QoL. Women who reported high COVID-19 impact experienced more disruption to BC services and lower QoL compared with women with low COVID-19 impact; however, the magnitude of these unfavorable effects differed by insurance status (Pinteraction < .05). CONCLUSIONS There was a large disruption to BC services and decrease in QoL for women with BC in Ireland during the pandemic. However, the impact was not the same for all women. It is important that women with BC are reintegrated into proper care and QoL is addressed through multidisciplinary support services.
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Affiliation(s)
- Charlotte Myers
- School of Population Health, Royal College of Surgeons Ireland, Dublin, Ireland
| | - Kathleen Bennett
- Data Science Centre, School of Population Health, Royal College of Surgeons Ireland, Dublin, Ireland
| | - Catherine Kelly
- Department of Oncology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Janice Walshe
- Medical Oncology Department, St Vincent's University Hospital, Dublin, Ireland
| | - Nollaig O'Sullivan
- Medical Oncology Department, St Vincent's University Hospital, Dublin, Ireland
| | - Mary Quinn
- Medical Oncology Department, St Vincent's University Hospital, Dublin, Ireland
| | - Therese Lyons
- Medical Oncology Department, St Vincent's University Hospital, Dublin, Ireland
| | - Catherine Weadick
- Department of Oncology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Caitriona Cahir
- Data Science Centre, School of Population Health, Royal College of Surgeons Ireland, Dublin, Ireland
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2
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Crown J, Walshe JM, Fennelly DW, Long JC, Ballot J, McDonnell D, Cairney S, Lyons T, O'Meara A, Buckley C, Gannon J, Quinn M, Gullo G. Incidence of long-term hair loss (LHL) following docetaxel (D)-containing non-anthracycline (A) adjuvant chemotherapy (Adj) of early stage breast cancer (ESB). J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.e12522] [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: 11/20/2022] Open
Affiliation(s)
- John Crown
- NSABP/NRG Oncology, and The IIrish Cooperative Oncology Research Group, Dublin, Ireland
| | | | | | | | | | | | | | | | | | - Conor Buckley
- Saint Vincent's University Hospital, Dublin, Ireland
| | - John Gannon
- Saint Vincent's University Hospital, Dublin, Ireland
| | - Mary Quinn
- Saint Vincent's Private Hospital, Dublin, Ireland
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3
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Tang WW, McGee P, Lachin JM, Li DY, Hoogwerf B, Hazen SL, Nathan D, Zinman B, Crofford O, Genuth S, Brown‐Friday J, Crandall J, Engel H, Engel S, Martinez H, Phillips M, Reid M, Shamoon H, Sheindlin J, Gubitosi‐Klug R, Mayer L, Pendegast S, Zegarra H, Miller D, Singerman L, Smith‐Brewer S, Novak M, Quin J, Genuth S, Palmert M, Brown E, McConnell J, Pugsley P, Crawford P, Dahms W, Gregory N, Lackaye M, Kiss S, Chan R, Orlin A, Rubin M, Brillon D, Reppucci V, Lee T, Heinemann M, Chang S, Levy B, Jovanovic L, Richardson M, Bosco B, Dwoskin A, Hanna R, Barron S, Campbell R, Bhan A, Kruger D, Jones J, Edwards P, Bhan A, Carey J, Angus E, Thomas A, Galprin A, McLellan M, Whitehouse F, Bergenstal R, Johnson M, Gunyou K, Thomas L, Laechelt J, Hollander P, Spencer M, Kendall D, Cuddihy R, Callahan P, List S, Gott J, Rude N, Olson B, Franz M, Castle G, Birk R, Nelson J, Freking D, Gill L, Mestrezat W, Etzwiler D, Morgan K, Aiello L, Golden E, Arrigg P, Asuquo V, Beaser R, Bestourous L, Cavallerano J, Cavicchi R, Ganda O, Hamdy O, Kirby R, Murtha T, Schlossman D, Shah S, Sharuk G, Silva P, Silver P, Stockman M, Sun J, Weimann E, Wolpert H, Aiello L, Jacobson A, Rand L, Rosenzwieg J, Nathan D, Larkin M, Christofi M, Folino K, Godine J, Lou P, Stevens C, Anderson E, Bode H, Brink S, Cornish C, Cros D, Delahanty L, eManbey ., Haggan C, Lynch J, McKitrick C, Norman D, Moore D, Ong M, Taylor C, Zimbler D, Crowell S, Fritz S, Hansen K, Gauthier‐Kelly C, Service F, Ziegler G, Barkmeier A, Schmidt L, French B, Woodwick R, Rizza R, Schwenk W, Haymond M, Pach J, Mortenson J, Zimmerman B, Lucas A, Colligan R, Luttrell L, Lopes‐Virella M, Caulder S, Pittman C, Patel N, Lee K, Nutaitis M, Fernandes J, Hermayer K, Kwon S, Blevins A, Parker J, Colwell J, Lee D, Soule J, Lindsey P, Bracey M, Farr A, Elsing S, Thompson T, Selby J, Lyons T, Yacoub‐Wasef S, Szpiech M, Wood D, Mayfield R, Molitch M, Adelman D, Colson S, Jampol L, Lyon A, Gill M, Strugula Z, Kaminski L, Mirza R, Simjanoski E, Ryan D, Johnson C, Wallia A, Ajroud‐Driss S, Astelford P, Leloudes N, Degillio A, Schaefer B, Mudaliar S, Lorenzi G, Goldbaum M, Jones K, Prince M, Swenson M, Grant I, Reed R, Lyon R, Kolterman O, Giotta M, Clark T, Friedenberg G, Sivitz W, Vittetoe B, Kramer J, Bayless M, Zeitler R, Schrott H, Olson N, Snetselaar L, Hoffman R, MacIndoe J, Weingeist T, Fountain C, Miller R, Johnsonbaugh S, Patronas M, Carney M, Mendley S, Salemi P, Liss R, Hebdon M, Counts D, Donner T, Gordon J, Hemady R, Kowarski A, Ostrowski D, Steidl S, Jones B, Herman W, Martin C, Pop‐Busui R, Greene D, Stevens M, Burkhart N, Sandford T, Floyd J, Bantle J, Flaherty N, Terry J, Koozekanani D, Montezuma S, Wimmergren N, Rogness B, Mech M, Strand T, Olson J, McKenzie L, Kwong C, Goetz F, Warhol R, Hainsworth D, Goldstein D, Hitt S, Giangiacomo J, Schade D, Canady J, Burge M, Das A, Avery R, Ketai L, Chapin J, Schluter M, Rich J, Johannes C, Hornbeck D, Schutta M, Bourne P, Brucker A, Braunstein S, Schwartz S, Maschak‐Carey B, Baker L, Orchard T, Cimino L, Songer T, Doft B, Olson S, Becker D, Rubinstein D, Bergren R, Fruit J, Hyre R, Palmer C, Silvers N, Lobes L, Rath PP, Conrad P, Yalamanchi S, Wesche J, Bratkowksi M, Arslanian S, Rinkoff J, Warnicki J, Curtin D, Steinberg D, Vagstad G, Harris R, Steranchak L, Arch J, Kelly K, Ostrosaka P, Guiliani M, Good M, Williams T, Olsen K, Campbell A, Shipe C, Conwit R, Finegold D, Zaucha M, Drash A, Morrison A, Malone J, Bernal M, Pavan P, Grove N, Tanaka E, McMillan D, Vaccaro‐Kish J, Babbione L, Solc H, DeClue T, Dagogo‐Jack S, Wigley C, Ricks H, Kitabchi A, Chaum E, Murphy M, Moser S, Meyer D, Iannacone A, Yoser S, Bryer‐Ash M, Schussler S, Lambeth H, Raskin P, Strowig S, Basco M, Cercone S, Zinman B, Barnie A, Devenyi R, Mandelcorn M, Brent M, Rogers S, Gordon A, Bakshi N, Perkins B, Tuason L, Perdikaris F, Ehrlich R, Daneman D, Perlman K, Ferguson S, Palmer J, Fahlstrom R, de Boer I, Kinyoun J, Van Ottingham L, Catton S, Ginsberg J, McDonald C, Harth J, Driscoll M, Sheidow T, Mahon J, Canny C, Nicolle D, Colby P, Dupre J, Hramiak I, Rodger N, Jenner M, Smith T, Brown W, May M, Lipps Hagan J, Agarwal A, Adkins T, Lorenz R, Feman S, Survant L, White N, Levandoski L, Grand G, Thomas M, Joseph D, Blinder K, Shah G, Burgess D, Boniuk I, Santiago J, Tamborlane W, Gatcomb P, Stoessel K, Ramos P, Fong K, Ossorio P, Ahern J, Gubitosi‐Klug R, Meadema‐Mayer L, Beck C, Farrell K, Genuth S, Quin J, Gaston P, Palmert M, Trail R, Dahms W, Lachin J, Backlund J, Bebu I, Braffett B, Diminick L, Gao X, Hsu W, Klumpp K, Pan H, Trapani V, Cleary P, McGee P, Sun W, Villavicencio S, Anderson K, Dews L, Younes N, Rutledge B, Chan K, Rosenberg D, Petty B, Determan A, Kenny D, Williams C, Cowie C, Siebert C, Steffes M, Arends V, Bucksa J, Nowicki M, Chavers B, O'Leary D, Polak J, Harrington A, Funk L, Crow R, Gloeb B, Thomas S, O'Donnell C, Soliman E, Zhang Z, Li Y, Campbell C, Keasler L, Hensley S, Hu J, Barr M, Taylor T, Prineas R, Feldman E, Albers J, Low P, Sommer C, Nickander K, Speigelberg T, Pfiefer M, Schumer M, Moran M, Farquhar J, Ryan C, Sandstrom D, Williams T, Geckle M, Cupelli E, Thoma F, Burzuk B, Woodfill T, Danis R, Blodi B, Lawrence D, Wabers H, Gangaputra S, Neill S, Burger M, Dingledine J, Gama V, Sussman R, Davis M, Hubbard L, Budoff M, Darabian S, Rezaeian P, Wong N, Fox M, Oudiz R, Kim L, Detrano R, Cruickshanks K, Dalton D, Bainbridge K, Lima J, Bluemke D, Turkbey E, der Geest ., Liu C, Malayeri A, Jain A, Miao C, Chahal H, Jarboe R, Nathan D, Monnier V, Sell D, Strauch C, Hazen S, Pratt A, Tang W, Brunzell J, Purnell J, Natarajan R, Miao F, Zhang L, Chen Z, Paterson A, Boright A, Bull S, Sun L, Scherer S, Lopes‐Virella M, Lyons T, Jenkins A, Klein R, Virella G, Jaffa A, Carter R, Stoner J, Garvey W, Lackland D, Brabham M, McGee D, Zheng D, Mayfield R, Maynard J, Wessells H, Sarma A, Jacobson A, Dunn R, Holt S, Hotaling J, Kim C, Clemens Q, Brown J, McVary K. Oxidative Stress and Cardiovascular Risk in Type 1 Diabetes Mellitus: Insights From the DCCT/EDIC Study. J Am Heart Assoc 2018. [PMCID: PMC6015340 DOI: 10.1161/jaha.117.008368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background
Hyperglycemia leading to increased oxidative stress is implicated in the increased risk for the development of macrovascular and microvascular complications in patients with type 1 diabetes mellitus.
Methods and Results
A random subcohort of 349 participants was selected from the
DCCT
/
EDIC
(Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications) cohort. This included 320 controls and 29 cardiovascular disease cases that were augmented with 98 additional known cases to yield a case cohort of 447 participants (320 controls, 127 cases). Biosamples from
DCCT
baseline, year 1, and closeout of
DCCT
, and 1 to 2 years post‐
DCCT
(
EDIC
years 1 and 2) were measured for markers of oxidative stress, including plasma myeloperoxidase, paraoxonase activity, urinary F
2α
isoprostanes, and its metabolite, 2,3 dinor‐8
iso
prostaglandin F
2α
. Following adjustment for glycated hemoblobin and weighting the observations inversely proportional to the sampling selection probabilities, higher paraoxonase activity, reflective of antioxidant activity, and 2,3 dinor‐8
iso
prostaglandin F
2α
, an oxidative marker, were significantly associated with lower risk of cardiovascular disease (−4.5% risk for 10% higher paraoxonase,
P
<0.003; −5.3% risk for 10% higher 2,3 dinor‐8
iso
prostaglandin F
2α
,
P
=0.0092). In contrast, the oxidative markers myeloperoxidase and F
2α
isoprostanes were not significantly associated with cardiovascular disease after adjustment for glycated hemoblobin. There were no significant differences between
DCCT
intensive and conventional treatment groups in the change in all biomarkers across time segments.
Conclusions
Heightened antioxidant activity (rather than diminished oxidative stress markers) is associated with lower cardiovascular disease risk in type 1 diabetes mellitus, but these biomarkers did not change over time with intensification of glycemic control.
Clinical Trial Registration
URL
:
https://www.clinicaltrials.gov
. Unique identifiers:
NCT
00360815 and
NCT
00360893.
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Affiliation(s)
- W.H. Wilson Tang
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
| | - Paula McGee
- The Biostatistics Center, George Washington University, Rockville, MD
| | - John M. Lachin
- The Biostatistics Center, George Washington University, Rockville, MD
| | - Daniel Y. Li
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | | | - Stanley L. Hazen
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH
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4
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Loyd SJ, Sample J, Tripati RE, Defliese WF, Brooks K, Hovland M, Torres M, Marlow J, Hancock LG, Martin R, Lyons T, Tripati AE. Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures. Nat Commun 2016; 7:12274. [PMID: 27447820 PMCID: PMC4961868 DOI: 10.1038/ncomms12274] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/17/2016] [Indexed: 11/29/2022] Open
Abstract
Methane cold seep systems typically exhibit extensive buildups of authigenic carbonate minerals, resulting from local increases in alkalinity driven by methane oxidation. Here, we demonstrate that modern seep authigenic carbonates exhibit anomalously low clumped isotope values (Δ47), as much as ∼0.2‰ lower than expected values. In modern seeps, this range of disequilibrium translates into apparent temperatures that are always warmer than ambient temperatures, by up to 50 °C. We examine various mechanisms that may induce disequilibrium behaviour in modern seep carbonates, and suggest that the observed values result from several factors including kinetic isotopic effects during methane oxidation, mixing of inorganic carbon pools, pH effects and rapid precipitation. Ancient seep carbonates studied here also exhibit potential disequilibrium signals. Ultimately, these findings indicate the predominance of disequilibrium clumped isotope behaviour in modern cold seep carbonates that must be considered when characterizing environmental conditions in both modern and ancient cold seep settings. The geochemistry of methane cold seep carbonates is often used to reconstruct environmental conditions. Loyd et al. find disequilibrium clumped isotope compositions in modern seep carbonates that suggest temperatures up to 50°C too high, raising doubt on seep carbonate temperature reconstructions.
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Affiliation(s)
- S J Loyd
- Department of Geological Sciences, California State University, Fullerton, California 92831, USA.,Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, California 90095, USA
| | - J Sample
- School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, Arizona 86001, USA
| | - R E Tripati
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, California 90095, USA.,Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095, USA.,European Institute of Marine Sciences (IUEM), Université de Brest, UMR 6538/6539, Rue Dumont D'Urville, and IFREMER, Plouzané 29019, France
| | - W F Defliese
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, California 90095, USA
| | - K Brooks
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, California 90095, USA
| | - M Hovland
- Centre for Geobiology, University of Bergen, Bergen 5003, Norway
| | - M Torres
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA
| | - J Marlow
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA
| | - L G Hancock
- Department of Earth Sciences, University of California, Riverside, California 92521, USA
| | - R Martin
- Department of Earth and Space Sciences/Burke Museum, University of Washington, Seattle, Washington 98195, USA
| | - T Lyons
- Department of Earth Sciences, University of California, Riverside, California 92521, USA
| | - A E Tripati
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, California 90095, USA.,Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, University of California, Los Angeles, California 90095, USA.,European Institute of Marine Sciences (IUEM), Université de Brest, UMR 6538/6539, Rue Dumont D'Urville, and IFREMER, Plouzané 29019, France
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5
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Lyons T, Mallet V, Collins D, Malone E, Milewski M, Egan K, Hennessy B, Grogan L, Breathnach O, Morris P. Abstract OT3-02-03: An observational study of dose dense chemotherapy with lipegfilgrastim support in early breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-ot3-02-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The combination of the anthracycline, doxorubicin with cyclophosphamide (AC) is a widely used chemotherapy regimen in early stage breast cancer. Studies have shown that dose dense chemotherapy (incorporating AC) improved both disease-free survival and overall survival compared to once every 3 week treatment with daily subcutaneous G-CSF support. An important advance in the use of dose dense chemotherapy regimens was the development of pegylated forms of G-CSF, which offered the convenience of a single subcutaneous injection, rather than multiple daily injections. Lipegfilgrastim is a pegylated long-acting covalent conjugate of filgrastim (G-CSF). In a pivotal randomised phase III study in breast cancer lipegfilgrastim was shown to be non-inferior to pegfilgrastim. Although lipegfilgrastim is licensed in Europe and can facilitate every 2 week (dose dense) scheduling of chemotherapy there are a lack of prospective data about its efficacy in this setting. In this prospective, non-interventional, study we are investigating the incidence of treatment-related neutropaenia following four cycles of dose dense AC with lipegfilgrastim support.
Methods: The primary end point of this prospective, single arm study is to determine the incidence of treatment-related neutropaenia, defined as an absolute neutrophil count (ANC) of <1.0 x 109/L, following four cycles of dose dense AC with lipegfilgrastim support. The secondary end points are to (1) determine the incidence of febrile neutropaenia, defined as temperature > 38°C and ANC <1.0 x 109/L, during 4 cycles of dose dense AC with lipegfilgrastim and (2) examine the incidence of treatment-related neutropaenia during subsequent intravenous chemotherapy post completion of AC. Eligibility criteria include, patients with stage I-III breast cancer, planned treatment with dose dense AC in the adjuvant or neoadjuvant setting, age ≥ 18 years, Eastern Cooperative Oncology Group (ECOG) Performance Status 0-1 and adequate bone marrow function. Patients with prior exposure to chemotherapy and/or G-CSF, who are pregnant, have a cardiac or other concurrent illness, which at the investigator's discretion contraindicates the use of AC will be excluded. We will enrol 40 consecutive patients who are planned to undergo dose dense AC. Based on previous clinical trials, we expect that the incidence of treatment-related neutropaenia will be <12%. However, it is likely that the current study will more closely resemble real-world practice and a higher incidence of treatment-related neutropaenia may be observed. This study has been approved by the Instituational Review Board and 9 patients have been consented to date. (registered with clinicaltrials.gov).
Citation Format: Lyons T, Mallet V, Collins D, Malone E, Milewski M, Egan K, Hennessy B, Grogan L, Breathnach O, Morris P. An observational study of dose dense chemotherapy with lipegfilgrastim support in early breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr OT3-02-03.
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Affiliation(s)
- T Lyons
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - V Mallet
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - D Collins
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - E Malone
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - M Milewski
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - K Egan
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - B Hennessy
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - L Grogan
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - O Breathnach
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
| | - P Morris
- Cancer Clinical Trials and Research Unit, Beaumont Hospital, Dublin, Ireland
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6
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O'Kane GM, Lyons T, McDonald I, Mulligan N, Moloney FJ, Murray D, Kelly CM. Vismodegib in the treatment of advanced BCC. Ir Med J 2014; 107:215-216. [PMID: 25226719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Basal-cell carcinoma (BCC) is the most commonly diagnosed malignancy, comprising over 80 per thousand of non-melanoma skin cancers. Surgical excision is adequate treatment for most BCC's. Options are however limited for the minority of patients presenting with locally advanced inoperable or metastatic BCC. The Hedgehog signalling pathway is a critical driver in the pathogenesis of both sporadic and hereditary BCC. On 31st January 2012, based on a phase II clinical trial the US Food and Drug Administration approved Vismodegib (Erivedge, Roche) a first-in-class, small-molecule oral Hedgehog-inhibitor for the treatment of locally advanced inoperable and metastatic BCC. We present our experience treating the first Irish patient with this agent.
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7
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Wade M, Tucker I, Cunningham P, Skinner R, Bell F, Lyons T, Patten K, Gonzalez L, Wess T. Investigating the origins of nanostructural variations in differential ethnic hair types using X-ray scattering techniques. Int J Cosmet Sci 2013; 35:430-41. [DOI: 10.1111/ics.12061] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 04/27/2013] [Indexed: 11/27/2022]
Affiliation(s)
- M. Wade
- School of Optometry & Vision Sciences; Cardiff University; Maindy Road; Cardiff CF24 4LU; U.K
| | - I. Tucker
- Unilever Research & Development Port Sunlight; Quarry Rd East; Bebington Wirral; CH63 3JW; U.K
| | - P. Cunningham
- Unilever Research & Development Port Sunlight; Quarry Rd East; Bebington Wirral; CH63 3JW; U.K
| | - R. Skinner
- Unilever Research & Development Port Sunlight; Quarry Rd East; Bebington Wirral; CH63 3JW; U.K
| | - F. Bell
- Unilever Research & Development Port Sunlight; Quarry Rd East; Bebington Wirral; CH63 3JW; U.K
| | - T. Lyons
- Unilever Research & Development Port Sunlight; Quarry Rd East; Bebington Wirral; CH63 3JW; U.K
| | - K. Patten
- School of Optometry & Vision Sciences; Cardiff University; Maindy Road; Cardiff CF24 4LU; U.K
| | - L. Gonzalez
- School of Optometry & Vision Sciences; Cardiff University; Maindy Road; Cardiff CF24 4LU; U.K
| | - T. Wess
- School of Optometry & Vision Sciences; Cardiff University; Maindy Road; Cardiff CF24 4LU; U.K
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9
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Kelleher F, Gullo G, Lyons T, Sheikh R, Crown J. 5153 POSTER Pre-operative Chemotherapy + Trastuzumab (T) for HER-2 Altered Locally-advanced (LA) Breast Cancer (HER+BC) in Pregnancy. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71595-7] [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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10
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Borges VF, Lyons T, O'Brien J, Russell T, Martinson H, Keely P, Schedin PJ. The role of collagen and COX-2 in post-partum breast involution on the progression of pregnancy-associated breast cancer and its inhibition by NSAIDs. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11117] [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: 11/20/2022] Open
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11
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Kelleher CF, Sclafani F, Zuradelli M, Collins D, Lyons T, Ballot J, O'Meara A, Reid H, Mahgoub T, Ibrahim AMM, Walshe JM, McDermott E, Evoy D, Collins C, Fennelly D, Crown JP, Gullo G. Docetaxel, carboplatin, and trastuzumab (TCH) preoperative induction treatment (IRx) in patients (pts) with HER2-positive breast cancer (BC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11065] [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: 11/20/2022] Open
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Abstract
Anabolic androgenic steroid (AAS) replacement therapy is standard care for patients with low testosterone, including HIV-related conditions. These medications have been associated with development of aggressiveness, anxiety disorders, and depression, but only in short-term clinical trials. We conducted an anonymous street survey at a gay and lesbian community event and a survey in a clinic-based setting to study the wider prevalence of psychiatric side-effects associated with androgenic steroids. In the street-based survey, almost half of those prescribed AAS reported psychological side-effects, most commonly aggression (29%) followed by depression (21%). In the clinic survey of mostly HIV+ male patients, changes in sex drive were the most commonly reported effect of treatment while impulsive aggression, anxiety and depression were reported at levels similar to those in the street fair survey. These findings suggest that AAS therapy may be more frequently associated with distress than has been reported in the clinical literature.
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Affiliation(s)
- T Lyons
- Great Cities Institute, University of Illinois at Chicago, Chicago, IL, USA
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13
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Borges VF, Lyons T, O'Brien J, Jindal S, Schedin PJ. Pregnancy-associated breast cancer: Characterization and potential chemoprevention with anti-inflammatory treatment. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10645] [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: 11/20/2022] Open
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14
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Raghavendra P, Murchland S, Bentley M, Wake-Dyster W, Lyons T. Parents' and service providers' perceptions of family-centred practice in a community-based, paediatric disability service in Australia. Child Care Health Dev 2007; 33:586-92. [PMID: 17725781 DOI: 10.1111/j.1365-2214.2007.00763.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND For children who have physical disabilities and their families, involvement with a variety of providers of rehabilitation services is the norm rather than the exception. Despite family-centred practice (FCP) being recognized as the 'best practice' model, families experience models of service provision that range from 'expert' to 'collaborative'. After adopting FCP at Novita Children's Services in South Australia, it was imperative to determine the effectiveness of the implementation of FCP. Aim To investigate parents' and staff's perceptions of FCP at Novita as part of ongoing quality assurance activity, and to identify any gaps in the services provided. METHODS The Measures of Processes of Care (MPOC) for parents/caregivers and service providers were utilized. A total of 189 families stratified by the three age groups of clients (<6, 6-12 and 13-18 years) and home location (metropolitan and rural) completed the MPOC-20 questionnaire. A total of 145 staff, allied health therapists, rehabilitation engineers, managers and other staff who have direct contact with clients and their families completed the MPOC - service providers (MPOC-SP) questionnaire. RESULTS Parents generally rated the family-centred behaviours of staff as positive. Respectful and supportive care received the highest rating, while providing general information received the lowest. There were significant differences in scores for all five scales of the MPOC between metropolitan and rural families and the age of the child. Service providers also generally rated their family-centred behaviours as positive. There were significant differences among the professions in areas of showing interpersonal sensitivity and providing general information. CONCLUSIONS The findings suggest that parents and service providers perceive FCP as positive at Novita, with some areas for improvement. The MPOC-20 and MPOC-SP can be used to measure FCP and to identify service delivery gaps, which warrant further exploration.
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Affiliation(s)
- P Raghavendra
- Clinical Research, Novita Children's Servies, Adelaide, South Australia, Australia.
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15
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Bania T, Chu J, Yoon JT, Lyons T, Rosselli M. Immediate Apnea Following Acute Chlorine Gas Exposure is Vagally Mediated. Acad Emerg Med 2007. [DOI: 10.1197/j.aem.2007.03.831] [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: 11/10/2022]
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17
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Lyons T, Murray KE, Roberts AW, Barton DJ. Poliovirus 5'-terminal cloverleaf RNA is required in cis for VPg uridylylation and the initiation of negative-strand RNA synthesis. J Virol 2001; 75:10696-708. [PMID: 11602711 PMCID: PMC114651 DOI: 10.1128/jvi.75.22.10696-10708.2001] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Chimeric poliovirus RNAs, possessing the 5' nontranslated region (NTR) of hepatitis C virus in place of the 5' NTR of poliovirus, were used to examine the role of the poliovirus 5' NTR in viral replication. The chimeric viral RNAs were incubated in cell-free reaction mixtures capable of supporting the sequential translation and replication of poliovirus RNA. Using preinitiation RNA replication complexes formed in these reactions, we demonstrated that the 3' NTR of poliovirus RNA was insufficient, by itself, to recruit the viral replication proteins required for negative-strand RNA synthesis. The 5'-terminal cloverleaf of poliovirus RNA was required in cis to form functional preinitiation RNA replication complexes capable of uridylylating VPg and initiating the synthesis of negative-strand RNA. These results are consistent with a model in which the 5'-terminal cloverleaf and 3' NTRs of poliovirus RNA interact via temporally dynamic ribonucleoprotein complexes to coordinately mediate and regulate the sequential translation and replication of poliovirus RNA.
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Affiliation(s)
- T Lyons
- Department of Microbiology, University of Colorado Health Sciences Center, Denver, Colorado 80262, USA
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18
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Mórocz IA, Zientara GP, Gudbjartsson H, Muza S, Lyons T, Rock PB, Kikinis R, Jólesz FA. Volumetric quantification of brain swelling after hypobaric hypoxia exposure. Exp Neurol 2001; 168:96-104. [PMID: 11170724 DOI: 10.1006/exnr.2000.7596] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [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: 11/22/2022]
Abstract
We applied a novel MR imaging technique to investigate the effect of acute mountain sickness on cerebral tissue water. Nine volunteers were exposed to hypobaric hypoxia corresponding to 4572 m altitude for 32 h. Such an exposure may cause acute mountain sickness. We imaged the brains of the volunteers before and at 32 h of hypobaric exposure with two different MRI techniques with subsequent data processing. (1) Brain volumes were calculated from 3D MRI data sets by applying a computerized brain segmentation algorithm. For this specific purpose a novel adaptive 3D segmentation program was used with an automatic correction algorithm for RF field inhomogeneity. (2) T(2) decay rates were analyzed in the white matter. The results demonstrated that a significant brain swelling of 36.2 +/- 19.6 ml (2.77 +/- 1.47%, n = 9, P < 0.001) developed after the 32-h hypobaric hypoxia exposure with a maximal observed volume increase of 5.8% (71.3 ml). These volume changes were significant only for the gray matter structures in contrast to the unremarkable changes seen in the white matter. The same study repeated 3 weeks later in 6 of 9 original subjects demonstrated that the brains recovered and returned approximately to the initially determined sea-level brain volume while hypobaric hypoxia exposure once again led to a significant new brain swelling (24.1 +/- 12.1 ml, 1.92 +/- 0.96%, n = 6, P < 0.005). On the contrary, the T(2) mapping technique did not reveal any significant effect of hypobaria on white matter. We present here a technique which is able to detect reversible brain volume changes as they may occur in patients with diffuse brain edema or increased cerebral blood volume, and which may represent a useful noninvasive tool for future evaluations of antiedematous drugs.
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Affiliation(s)
- I A Mórocz
- Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.
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19
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Barrack RL, Lyons T. Proximal tibia--extensor mechanism composite allograft for revision TKA with chronic patellar tendon rupture. Acta Orthop Scand 2000; 71:419-21. [PMID: 11028894 DOI: 10.1080/000164700317393457] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Rupture of the patellar tendon following TKA is fortunately an uncommon complication with an incidence of 0.2-4% (Abril et al. 1995). Numerous options have been reported for treating this complication, including primary suture into a bone trough (Abril et al. 1995), autogenous tendon transfer (Cadambi and Engh 1992), and use of an artificial ligament (Fujikawa et al. 1994). Allograft patellar tendon has also been utilized either retaining the host patella and using a bone-tendon-bone graft or excising the host patella and using a quadriceps tendon-patella-patellar tendon-tibial tubercle graft (Emerson et al. 1990, Emerson et al. 1994, Zanotti et al. 1995, Booth et al. 1999). All of these techniques require structural integrity of the proximal tibia in the area of the tibial tubercle in order to attach the repair or graft to restore continuity of the extensor mechanism. When there is massive osteolysis and bone loss involving the proximal tibia, the situation becomes more complex and the previously described techniques are not advisable. In such cases, function can be obtained with a composite allograft of proximal tibia-patellar tendon-patella-quadriceps tendon. We describe a technique for dealing with this difficult clinical situation.
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Affiliation(s)
- R L Barrack
- Tulane University School of Medicine, Department of Orthopaedic Surgery, New Orleans, Louisiana, USA.
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20
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Muza SR, Jackson R, Rock PB, Roach J, Lyons T, Cymerman A. Interaction of chemical defense clothing and high terrestrial altitudes on lift/carry and marksmanship performance. Aviat Space Environ Med 2000; 71:668-77. [PMID: 10902929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
BACKGROUND The increased metabolic energy requirement imposed by a chemical defense uniform (CDU) and the lower maximal aerobic capacity associated with increased altitude should produce greater demands on the cardiopulmonary system during the performance of a given work task at increasing altitudes. We hypothesized that: a) relative to sea level, the decrements in physical work performance caused by ascending to high terrestrial altitudes would be greater in a CDU compared with a standard fatigue uniform (U.S. Army, BDU); b) the aversive subjective reactions to the CDU would be accentuated with increasing altitude; and c) that staging at moderate altitude, to induce acclimatization, would restore work performance at higher altitudes to sea level norms. METHODS The physiological and subjective responses of 8 male soldiers to work (10-min lift-and-carry task and rifle marksmanship) were measured. Subjects wore the BDU and a CDU ensemble (U.S. Army, BDO) at sea level, intermediate (2743 m) and high (4,300 m) altitudes following rapid and staged (3 d at 1,830 m) ascents to the higher altitudes. RESULTS Lift/carry task performance tended to be lower (p = 0.076) in the CDU vs. the BDU at altitude. The cardiopulmonary responses to the lift/carry task increased at altitude and were greater in the CDU. The subjects' perception of their ability to perform the lift/carry task at altitude was adversely impacted more in the CDU than the BDU. Rapid ascent to intermediate altitude degraded marksmanship in both uniforms. Following staged ascent, lift/carry task and marksmanship performance was restored to sea level norms. CONCLUSIONS Personnel wearing CDU or equivalent protective clothing at intermediate to high terrestrial elevations should anticipate proportionally larger CDU-induced decrements of work performance and lower tolerance to working in a CDU than experienced near sea level. Staging at moderate altitude is an effective strategy for restoring work performance to sea level norms at higher altitudes.
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Affiliation(s)
- S R Muza
- US Army Research Institute of Environmental Medicine, Natick, MA 01760-5007, USA.
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21
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Turcsányi E, Lyons T, Plöchl M, Barnes J. Does ascorbate in the mesophyll cell walls form the first line of defence against ozone? Testing the concept using broad bean (Vicia faba L.). J Exp Bot 2000. [PMID: 10948216 DOI: 10.1093/jexbot/51.346.901] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Broad bean (Vicia faba L.) plants were exposed, in duplicate controlled environment chambers, to charcoal/Purafil-filtered air (CFA-grown plants) or to 75 nmol mol(-1) ozone (O(3)) for 7 h d(-1) (O(3)-grown plants) for 28 d, and then exposed to 150 nmol mol(-1) O(3 )for 8 h. The concentration of ascorbate (ASC) was determined in leaf extracellular washing fluid (apoplast) and in the residual leaf tissue (symplast) after 0, 4 and 8 h acute fumigation, and after a 16 h "recovery" period in CFA. Changes in stomatal conductance were measured in vivo in order to model pollutant uptake, while the light-saturated rate of CO(2) assimilation (A:(sat)) was recorded as an indicator of O(3)-induced intracellular damage. Measurements of A:(sat) revealed enhanced tolerance to 150 nmol mol(-1) O(3) in plants pre-exposed to the pollutant compared with equivalent plants grown in CFA, consistent with the observed reduction in pollutant uptake due to lower stomatal conductance. The concentration of ASC in the leaf apoplast (ASC(apo)) declined upon O(3)-treatment in both CFA- and O(3)-grown plants, consistent with the oxidation of ASC(apo) under O(3)-stress. Furthermore, the decline in ASC(apo) was reversible in O(3)-grown plants after a 16 h "recovery" period, but not in plants grown in CFA. No significant change in the level and/or redox state of ASC in the symplast (ASC(symp)) was observed in plants exposed to 150 nmol mol(-1) O(3), and there was no difference in the constitutive level of ASC(symp) between CFA- and O(3)-grown plants. Model calculations indicated that the reaction of O(3) with ASC(apo) in the leaves of Vicia faba is potentially sufficient to intercept a substantial proportion (30-40%) of the O(3)entering the plant under environmentally-relevant conditions. The potential role of apoplastic ASC in mediating the tolerance of leaves to O(3) is discussed.
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Affiliation(s)
- E Turcsányi
- Air Pollution Laboratory, Department of Agricultural and Environmental Science, Ridley Building, The University, Newcastle Upon Tyne NE1 7RU, UK
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22
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Plöchl M, Lyons T, Ollerenshaw J, Barnes J. Simulating ozone detoxification in the leaf apoplast through the direct reaction with ascorbate. Planta 2000; 210:454-67. [PMID: 10750904 DOI: 10.1007/pl00008153] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
This paper presents a mathematical model which enables the semi-quantification of ozone (O3) detoxification, based upon the direct reaction of the pollutant with ascorbate (ASC) located in the aqueous matrix associated with the cell wall (i.e. the apoplast). The model describes the uptake of ozone into the leaf and its direct reaction with ASC, taking into consideration the regeneration of dehydroascorbic acid in the cytosol, the rate of replenishment of cell wall ASC and the distribution of ASC between sub-cellular compartments based upon the permeability of biomembranes to the neutral species, ascorbic acid and the pH of various sub-cellular compartments. The importance of various physico-chemical characteristics (e.g. stomatal conductance, mesophyll cell wall thickness and tortuosity, chloroplast volume, apoplast pH, ASC:O3 reaction stoichiometry) in mediating the flux of ozone to the plasmalemma is analysed. Model simulations, supported by experimental observations, suggest that the ASC concentration in the leaf apoplast is high enough to scavenge a significant proportion of the O3 taken up into the leaf interior, under environmentally relevant conditions. However, there is considerable variation between taxa in the potential degree of protection afforded by apoplastic ASC, emphasizing the need for an improved understanding of the reaction chemistry of O3 in the cell wall.
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Affiliation(s)
- M Plöchl
- Institute of Agricultural Engineering Bornim (ATB), Potsdam-Bornim, Germany
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23
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Kelner GS, Lee M, Clark ME, Maciejewski D, McGrath D, Rabizadeh S, Lyons T, Bredesen D, Jenner P, Maki RA. The copper transport protein Atox1 promotes neuronal survival. J Biol Chem 2000; 275:580-4. [PMID: 10617654 DOI: 10.1074/jbc.275.1.580] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.5] [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: 11/06/2022] Open
Abstract
Atox1, a copper transport protein, was recently identified as a copper-dependent suppressor of oxidative damage in yeast lacking superoxide dismutase. We have previously reported that Atox1 in the rat brain is primarily expressed in neurons, with the highest levels in distinct neuronal subtypes that are characterized by their high levels of metal, like copper, iron, and zinc. In this report, we have transfected the Atox1 gene into several neuronal cell lines to increase the endogenous level of Atox1 expression and have demonstrated that, under conditions of serum starvation and oxidative injury, the transfected neurons are significantly protected against this stress. This level of protection is comparable with the level of protection seen with copper/zinc superoxide dismutase and the anti-apoptotic gene bcl-2 that had been similarly transfected. Furthermore, neuronal cell lines transfected with a mutant Atox1 gene, where the copper binding domain has been modified to prevent metal binding, do not afford protection against serum starvation resulting in apoptosis. Therefore, Atox1 is a component of the cellular pathways used for protection against oxidative stress.
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Affiliation(s)
- G S Kelner
- Department of Molecular Biology, Neurocrine Biosciences, San Diego, California 92121, USA
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Ollerenshaw JH, Lyons T. Impacts of ozone on the growth and yield of field-grown winter wheat. Environ Pollut 1999; 106:67-72. [PMID: 15093060 DOI: 10.1016/s0269-7491(99)00060-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/1998] [Accepted: 02/23/1999] [Indexed: 05/24/2023]
Abstract
Seed of winter wheat (Triticum aestivum L. cv Riband) was sown on 29 August 1992 in eight field plots. Four plots were exposed to elevated ozone (O(3)) concentrations on 16 days between 29 August and 2 October 1992, for 6 h day(-1), and on 27 days between 29 March and 24 August 1993, for 7 h day(-1). Mean daily O(3) concentrations were approximately 30 and 80 nmol mol(-1) in ambient and fumigated plots, respectively. Plants were sampled on 5 November (1992), 14 January, 16 February, 1 April, 25 May, 23 June and 24 August (1993). No visible symptoms of O(3) damage or premature senescence were observed at any time over the course of the experiment. Exposure to elevated O(3) decreased the above ground biomass by reducing plant density and individual plant relative growth rate. However, there was no significant influence of the pollutant on the growth of the root relative to the shoot. Assessment of yield characteristics at the final harvest revealed an O(3)-induced decrease in the number of grains per ear, as a result of fewer grains per spikelet and an increase in the number of infertile florets per spikelet. No significant effects of the pollutant on the number of ears per plant, spikelets per ear, or 1000 grain weight were found. As a result of the combined effects on the number of grains per ear and the decrease in plant density and growth rate, O(3) exposure reduced grain and straw yields (tonnes ha(-1)) by 13 and 8%, respectively. However, no significant change in the partitioning of dry matter between the grain and the straw was observed in fumigated plots. The findings are discussed within the context of United Nation Economic Commission for Europe critical level guidelines for the protection of crop yields, in relation to their application to winter-sown crops.
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Affiliation(s)
- J H Ollerenshaw
- Air Pollution Laboratory, Department of Agricultural and Environmental Science, Ridley Building, University of Newcastle, Newcastle-upon-Tyne NE1 7RU, UK.
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26
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Greenlee JE, Dalmau J, Lyons T, Clawson S, Smith RH, Pirch HR. Association of anti-Yo (type I) antibody with paraneoplastic cerebellar degeneration in the setting of transitional cell carcinoma of the bladder: detection of Yo antigen in tumor tissue and fall in antibody titers following tumor removal. Ann Neurol 1999; 45:805-9. [PMID: 10360776 DOI: 10.1002/1531-8249(199906)45:6<805::aid-ana18>3.0.co;2-g] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Anti-Yo (type I) autoantibodies reactive with Purkinje cell cytoplasmic antigens of 34 and 62 kd are found in the serum and cerebrospinal fluid of patients with paraneoplastic cerebellar degeneration associated with cancer of the ovary, uterus, adnexa, or breast. Anti-Yo antibody response is rarely associated with other tumors. Here, we present a patient who developed paraneoplastic cerebellar degeneration and anti-Yo antibody response in association with transitional cell carcinoma of the bladder. The presence of anti-Yo antibodies was confirmed by immunofluorescence assay and by Western blot analysis against both Purkinje cell lysates and the CDR62 fusion protein. Yo antigen was demonstrated in sections of the patient's tumor. Antibody titers fell after tumor removal. Transitional cell carcinoma should be considered in patients presenting with subacute cerebellar degeneration and anti-Yo antibody response in whom ovarian, adnexal, uterine, or breast cancer cannot be detected.
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Affiliation(s)
- J E Greenlee
- Veterans Affairs Medical Center and Department of Neurology, University of Utah School of Medicine, Salt Lake City 84148, USA
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Lyons T. Eight steps to help you put consumers first. Nurs Manag (Harrow) 1999; 30:63. [PMID: 10382511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- T Lyons
- Nurses Diversified Health Care Consulting and Educational Services, Ester, Alaska, USA
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Willi SM, O'Rear D, Garvey WT, Colwell JA, Buse MG, Jaffa A, Lopes-Virella M, Wood D, Mayfield RK, Wallace P, Hermayer KL, Jenkins AJ, Lyons T, Mayer-Davis E. Diabetes research in South Carolina: past, present, and future. J S C Med Assoc 1998; 94:502-8. [PMID: 9844316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Medical investigators in South Carolina have been on the "cutting edge" of diabetes research for a number of decades. Despite this fact, our state ranks second in the nation in diabetes prevalence, and diabetes complications are more severe here than anywhere else. It is from the efforts of these investigators that our hope for a brighter future comes. Through a concerted effort toward prevention, improvements in care, and investigation of the pathophysiology of diabetes and its complications, researchers may reduce the substantial burden of diabetes in our state and throughout the world.
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Affiliation(s)
- S M Willi
- Department of Pediatrics, MUSC, Charleston 29425, USA
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29
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Argyropoulos G, Jenkins A, Klein RL, Lyons T, Wagenhorst B, St Armand J, Marcovina SM, Albers JJ, Pritchard PH, Garvey WT. Transmission of two novel mutations in a pedigree with familial lecithin:cholesterol acyltransferase deficiency: structure-function relationships and studies in a compound heterozygous proband. J Lipid Res 1998; 39:1870-6. [PMID: 9741700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Two novel mutations were identified in a compound heterozygous male with lecithin:cholesterol acyltransferase (LCAT) deficiency. Exon sequence determination of the LCAT gene of the proband revealed two novel heterozygous mutations in exons one (C110T) and six (C991T) that predict non-conservative amino acid substitutions (Thr13Met and Pro307Ser, respectively). To assess the distinct functional impact of the separate mutant alleles, studies were conducted in the proband's 3-generation pedigree. The compound heterozygous proband had negligible HDL and severely reduced apolipoprotein A-I, LCAT mass, LCAT activity, and cholesterol esterification rate (CER). The proband's mother and two sisters were heterozygous for the Pro307Ser mutation and had low HDL, markedly reduced LCAT activity and CER, and the propensity for significant reductions in LCAT protein mass. The proband's father and two daughters were heterozygous for the Thr13Met mutation and also displayed low HDL, reduced LCAT activity and CER, and more modest decrements in LCAT mass. Mean LCAT specific activity was severely impaired in the compound heterozygous proband and was reduced by 50% in individuals heterozygous for either mutation, compared to wild type family members. It is also shown that the two mutations impair both catalytic activity and expression of the circulating protein.
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Affiliation(s)
- G Argyropoulos
- Department of Medicine, Medical University of South Carolina, and Ralph H. Johnson Veterans Affairs Medical Center, Charleston 29425, USA
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Lee JH, Graber R, Popple CG, Furey E, Lyons T, Murrell HK, Geha AS. Safety and efficacy of early extubation of elderly coronary artery bypass surgery patients. J Cardiothorac Vasc Anesth 1998; 12:381-4. [PMID: 9713722 DOI: 10.1016/s1053-0770(98)90187-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Early extubation and fast-track management protocols on younger, low-risk patients result in shorter hospital stays and decreased costs. The impact of such protocols on elderly patients undergoing coronary artery bypass graft (CABG) surgery is not presently known. DESIGN A matched retrospective cohort study. SETTING A university teaching hospital. PARTICIPANTS Six hundred ninety-eight consecutive patients undergoing isolated CABG between January 1995 and September 1996. INTERVENTIONS Three hundred seventy-seven patients underwent early extubation, defined as extubation within 8 hours of arrival in the intensive care unit. They were divided into groups of patients 70 years of age and younger (n = 263) and patients older than 70 years of age (n = 114). RESULTS The mean length of stay (LOS) for all patients extubated within 8 hours or less was 5.5 days versus 8.4 days for patients who underwent later extubation (p < 0.0001). The percentage of patients undergoing early extubation was greater for the younger cohort (59% v 48%; p < 0.003) compared with the older cohort of patients. Analysis of demographics showed the older patients to have a greater incidence of peripheral vascular disease, congestive heart failure, and prior strokes (p < 0.05). Although the intensive care unit LOS was similar, postoperative LOS was 5.3 +/- 1.8 days for the younger patients versus 6.1 +/- 2.6 days for the older patients (p = 0.001). The overall surgical mortality rate was 2.6% (18/698), and there were no deaths among patients undergoing early extubation. Reintubation rate was negligible in both groups of patients. CONCLUSION This study confirms the safety and efficacy of early extubation among elderly patients undergoing CABG. Elderly patients have more comorbid conditions, yet a significant number can be extubated early, with resultant shortened LOSs.
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Affiliation(s)
- J H Lee
- Division of Cardiothoracic Surgery and Anesthesia, Case Western Reserve University School of Medicine, University Hospitals of Cleveland, OH 44106, USA
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Lyons T, Gourley G, Holt JM. Diabetes management: current diagnostic criteria, drug therapies, and state legislation. Am J Manag Care 1997; 3:1599-608; quiz 1161-4. [PMID: 10178463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The policies, standards, guidelines, and criteria that each member of the healthcare team uses to assist in the delivery of comprehensive healthcare are constantly being defined and redefined. This article has discussed many of those changes as they relate to diabetes management. The entire healthcare team must have a working knowledge of these changes so that they can continue to deliver the best possible care to patients with diabetes. Improvements in quality of life, decreases in mortality and morbidity, and subsequent declines in healthcare costs will benefit both individual patients and society. The profession of pharmacy has realized the need for additional education and training in managing the patient with diabetes. Many colleges of pharmacy, as well as companies in the pharmaceutical industry, are offering diabetes certification and diabetes disease management programs to pharmacists to enhance their ability to manage these patients (Lyons T, Gourley DR, unpublished data, 1997. Similar efforts in diabetes management have been made in other health professions as well, such as nursing.
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Affiliation(s)
- T Lyons
- Department of Pharmacy Practice and Pharmacoeconomics, University of Tennessee College of Pharmacy, Memphis, USA
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Young AJ, Sawka MN, Muza SR, Boushel R, Lyons T, Rock PB, Freund BJ, Waters R, Cymerman A, Pandolf KB, Valeri CR. Effects of erythrocyte infusion on VO2max at high altitude. J Appl Physiol (1985) 1996; 81:252-9. [PMID: 8828672 DOI: 10.1152/jappl.1996.81.1.252] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [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: 02/02/2023] Open
Abstract
This study investigated whether autologous erythrocyte infusion would ameliorate the decrement in maximal O2 uptake (VO2max) experienced by lowlanders when they ascend to high altitude. VO2max was measured in 16 men (treadmill running) at sea level (SL) and on the 1st (HA1) and 9th (HA9) days of high-altitude (4,300 m) residence. After VO2max was measured at SL, subjects were divided into two matched groups (n = 8). Twenty-four hours before ascent to high altitude, the experimental group received a 700-ml infusion of autologous erythrocytes and saline (42% hematocrit), whereas the control group received only saline. The VO2max of erythrocyte-infused [54 +/- 1 (SE) ml.kg-1.min-1] and control subjects (52 +/- 2 ml.kg-1.min-1) did not differ at SL before infusion. The decrement in VO2max on HA1 did not differ between groups, averaging 26% overall, despite higher (P < 0.01) arterial hematocrit, hemoglobin concentration, and arterial O2 content in the erythrocyte-infused subjects. By HA9, there were no longer any differences in hematocrit, hemoglobin concentration, or arterial O2 content between groups. No change in VO2max occurred between HA1 and HA9 for either group. Thus, despite increasing arterial O2-carrying capacity, autologous erythrocyte infusion did not ameliorate the decrement in VO2max at 4,300-m altitude.
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Affiliation(s)
- A J Young
- United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760-5007, USA
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Gallas E, Abolins M, Brock R, Cobau WG, Hatcher RW, Owen DP, Perkins GJ, Tartaglia M, Weerts H, Bogert D, Fuess S, Koizumi G, Stutte L, Friedman JI, Kendall HW, Kistiakowsky V, Lyons T, Osborne LS, Pitt R, Rosenson L, Schneekloth U, Strongin B, Taylor FE, Walker JK, White A, Womersley WJ. Search for neutral weakly interacting massive particles in the Fermilab Tevatron wideband neutrino beam. Phys Rev D Part Fields 1995; 52:6-14. [PMID: 10019013 DOI: 10.1103/physrevd.52.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lyons T. AGD's cosmetic dentistry teleconference draws significant viewer participation. Gen Dent 1995; 43:384-7. [PMID: 8940602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Lyons T. The occlusal/restorative interface. Gen Dent 1995; 43:377-8. [PMID: 8940601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Young AJ, Sawka MN, Boushel R, Muza SR, Freund B, Lyons T, Rock PB, Cymerman A, Pandolf KB, Valeri CR. ERYTHROCYTE REINFUSION ALTERS SYSTEMIC O2 TRANSPORT DURING EXERCISE AT HIGH ALTITUDE. Med Sci Sports Exerc 1995. [DOI: 10.1249/00005768-199505001-00618] [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: 11/21/2022]
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Pandolf KB, Sawka MN, Young AJ, Lyons T, Rock PB, Boushel R, Laird JE, Beidleman B, Wicher MH, Pivacek LE, Valeri CR. FIBRINOLYTIC ACTIVITY: EFFECTS OF ERYTHROCYTE REINFUSION, HIGH ALTITUDE & MAXIMAL EXERCISE. Med Sci Sports Exerc 1995. [DOI: 10.1249/00005768-199505001-00621] [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: 11/21/2022]
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Sawka MN, Young AJ, Boushel R, Lyons T, Rock PB, Freund BJ, Muza SR, Fulco C, Cymerman A, Pandolf KB, Pivacek LE, Valeri CR. ERYTHROCYTE REINFUSION EFFECTS ON VASCULAR VOLUME & ERYTHROPOIETIN AT HIGH ALTITUDE. Med Sci Sports Exerc 1995. [DOI: 10.1249/00005768-199505001-00620] [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: 11/21/2022]
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Beidleman BA, Muza SR, Fulco CS, Rock PB, Lyons T, Hoyf RW, Cymerman A. 118 DECREASED LACTATE ACCUMULATION FOLLOWING ACCLIMATIZATION TO 4300 M IS RETAINED AFTER EIGHT DAYS AT SEA LEVEL. Med Sci Sports Exerc 1994. [DOI: 10.1249/00005768-199405001-00119] [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: 11/21/2022]
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Young AI, Sawka MN, Cymerman A, Muza SR, Freund B, Lyons T, Rock PB, Boushel R, Pandolf KB, Valeri CR. 119 ERYTHROCYTE REINFUSION DOES NOT AMELIORATE THE DECREMENT IN Vo2max AT HIGH ALTITUDE (4300 M). Med Sci Sports Exerc 1994. [DOI: 10.1249/00005768-199405001-00120] [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: 11/21/2022]
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Lyons T. Diagnosis, removal of obstructions in endodontic therapy. Gen Dent 1993; 41 Spec No:454-455. [PMID: 23087928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Lyons T. Shortage of qualified dental technicians. Trends Tech Contemp Dent Lab 1993; 10:58-60. [PMID: 8272750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Lyons T. Infection control in the dental laboratory. Trends Tech Contemp Dent Lab 1993; 10:75-8. [PMID: 8235287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Lyons T. Inside the dental laboratory: management's perspective of remakes and communication. Trends Tech Contemp Dent Lab 1993; 10:63-66. [PMID: 8362164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lyons T. Inside dental laboratories: management's perspective of remakes and communication. Gen Dent 1993; 41:119-21. [PMID: 8330724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Lyons T. Growth of the dental laboratory industry. Gen Dent 1992; 40:468-73. [PMID: 1298669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Strongin B, Bofill J, Friedman JI, Fuess S, Goodman MC, Kendall HW, Kistiakowsky V, Lyons T, Osborne LS, Pitt R, Schneekloth U, Taylor FE, Bogert D, Koizumi G, Stutte L, Abolins M, Brock R, Cobau W, Hatcher R, Owen D, Perkins G, Tartaglia M, Weerts H, Belusevic R, Walker JK, White A, Womersley J. Study of opposite-sign dimuon production in high-energy neutrino-nucleon interactions. Phys Rev D Part Fields 1991; 43:2778-2786. [PMID: 10013675 DOI: 10.1103/physrevd.43.2778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Mattison TS, Bofill J, Busza W, Eldridge T, Friedman JI, Fuess S, Goodman MC, Kendall HW, Lyons T, Magahiz R, Mukherjee A, Osborne LS, Pitt R, Rosenson L, Sandacz A, Tartaglia M, Taylor FE, Verdier R, Whitaker JS, Yeh GP, Bogert D, Burnstein R, Morfin JG, Stutte L, Walker JK, Abolins M, Brock R, Cohen A, Ernwein J, Owen D, Slate J, Weerts H. Nucleon neutral-current structure functions. Phys Rev D Part Fields 1990; 42:1311-1330. [PMID: 10012973 DOI: 10.1103/physrevd.42.1311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Abstract
We describe the use of Ender nails for the internal fixation of femoral shaft fractures by a closed technique via the greater trochanter and report the treatment of 100 patients with 106 fractures, of which 88 were reviewed 12 months or more after operation. There was primary union in 85 fractures (96.6%) and significant angulation, rotation or leg length discrepancy in eight (9%). We discuss the principles of management which we have evolved.
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Affiliation(s)
- J Walters
- Groote Schuur Hospital, Cape Town, Republic of South Africa
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Mukherjee A, Bofill J, Busza W, Eldridge T, Friedman JI, Fuess S, Goodman MC, Kendall HW, Lyons T, Magahiz R, Mattison T, Osborne LS, Pitt R, Rosenson L, Sandacz A, Tartaglia M, Taylor FE, Verdier R, Whitaker S, Yeh GP, Bogert D, Burnstein R, Morfin JG, Stutte L, Walker JK, Abolins M, Brock R, Cohen A, Ernwein J, Hatcher R, Owen D, Slate J, Weerts H. Azimuthal energy flow in deep-inelastic neutrino scattering. Phys Rev Lett 1988; 60:991-994. [PMID: 10037913 DOI: 10.1103/physrevlett.60.991] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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