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Acero M, Adamson P, Aliaga L, Alion T, Allakhverdian V, Anfimov N, Antoshkin A, Arrieta-Diaz E, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah B, Basher S, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blair J, Booth A, Bolshakova A, Bour P, Bromberg C, Buchanan N, Butkevich A, Campbell M, Carroll T, Catano-Mur E, Childress S, Choudhary B, Chowdhury B, Coan T, Colo M, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies G, Derwent P, Ding P, Djurcic Z, Doyle D, Dukes E, Dung P, Duyang H, Edayath S, Ehrlich R, Feldman G, Flanagan W, Frank M, Gallagher H, Gandrajula R, Gao F, Germani S, Giri A, Gomes R, Goodman M, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Howard B, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan D, Keloth R, Klimov O, Koerner L, Kolupaeva L, Kotelnikov S, Kreymer A, Kullenberg C, Kumar A, Kuruppu C, Kus V, Lackey T, Lang K, Lin S, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann W, Marshak M, Matveev V, Méndez D, Messier M, Meyer H, Miao T, Miller W, Mishra S, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mulder K, Mufson S, Murphy R, Musser J, Naples D, Nayak N, Nelson J, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Patterson R, Pawloski G, Pershey D, Petrova O, Petti R, Plunkett R, Potukuchi B, Principato C, Psihas F, Raj V, Radovic A, Rameika R, Rebel B, Rojas P, Ryabov V, Sachdev K, Samoylov O, Sanchez M, Seong I, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga R, Tas P, Thayyullathil R, Thomas J, Tiras E, Torbunov D, Tripathi J, Tsaris A, Torun Y, Urheim J, Vahle P, Vasel J, Vinton L, Vokac P, Vrba T, Wang B, Warburton T, Wetstein M, While M, Whittington D, Wojcicki S, Wolcott J, Yadav N, Yallappa Dombara A, Yang S, Yonehara K, Yu S, Zalesak J, Zamorano B, Zwaska R. Measurement of neutrino-induced neutral-current coherent
π0
production in the NOvA near detector. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.102.012004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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El-Chami C, Foster AR, Johnson C, Clausen RP, Cornwell P, Haslam IS, Steward MC, Watson REB, Young HS, O'Neill CA. Organic osmolytes increase expression of specific tight junction proteins in skin and alter barrier function in keratinocytes. Br J Dermatol 2020; 184:482-494. [PMID: 32348549 DOI: 10.1111/bjd.19162] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND The epidermal barrier is important for water conservation, failure of which is evident in dry-skin conditions. Barrier function is fulfilled by the stratum corneum, tight junctions (TJs, which control extracellular water) and keratinocyte mechanisms, such as organic osmolyte transport, which regulate intracellular water homeostasis. Organic osmolyte transport by keratinocytes is largely unexplored and nothing is known regarding how cellular and extracellular mechanisms of water conservation may interact. OBJECTIVES We aimed to characterize osmolyte transporters in skin and keratinocytes, and, using transporter inhibitors, to investigate whether osmolytes can modify TJs. Such modification would suggest a possible link between intracellular and extracellular mechanisms of water regulation in skin. METHODS Immunostaining and quantitative polymerase chain reaction of organic osmolyte-treated organ-cultured skin were used to identify changes to organic osmolyte transporters, and TJ protein and gene expression. TJ functional assays were performed on organic osmolyte-treated primary human keratinocytes in culture. RESULTS Immunostaining demonstrated the expression of transporters for betaine, taurine and myo-inositol in transporter-specific patterns. Treatment of human skin with either betaine or taurine increased the expression of claudin-1, claudin-4 and occludin. Osmolyte transporter inhibition abolished this response. Betaine and taurine increased TJ function in primary human keratinocytes in vitro. CONCLUSIONS Treatment of skin with organic osmolytes modulates TJ structure and function, which could contribute to the epidermal barrier. This emphasizes a role for organic osmolytes beyond the maintenance of intracellular osmolarity. This could be harnessed to enhance topical therapies for diseases characterized by skin barrier dysfunction.
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Acero M, Adamson P, Aliaga L, Alion T, Allakhverdian V, Anfimov N, Antoshkin A, Asquith L, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah B, Bashar S, Bays K, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blair J, Booth A, Bour P, Bromberg C, Buchanan N, Butkevich A, Calvez S, Carroll T, Catano-Mur E, Childress S, Choudhary B, Coan T, Colo M, Corwin L, Cremonesi L, Davies G, Derwent P, Dharmapalan R, Ding P, Djurcic Z, Doyle D, Dukes E, Dung P, Duyang H, Edayath S, Ehrlich R, Feldman G, Filip P, Flanagan W, Frank M, Gallagher H, Gandrajula R, Gao F, Germani S, Giri A, Gomes R, Goodman M, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Heller K, Hewes J, Himmel A, Holin A, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan D, Keloth R, Klimov O, Koerner L, Kolupaeva L, Kotelnikov S, Kullenberg C, Kumar A, Kuruppu C, Kus V, Lackey T, Lang K, Li L, Lin S, Lokajicek M, Luchuk S, Magill S, Mann W, Marshak M, Martinez-Casales M, Matveev V, Mayes B, Méndez D, Messier M, Meyer H, Miao T, Miller W, Mishra S, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Mulder K, Murphy R, Musser J, Naples D, Nayak N, Nelson J, Nichol R, Niner E, Norman A, Norrick A, Nosek T, Olshevskiy A, Olson T, Paley J, Patterson R, Pawloski G, Petrova O, Petti R, Plunkett R, Rafique A, Psihas F, Raj V, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez M, Sánchez Falero S, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Talaga R, Tapia Oregui B, Tas P, Thayyullathil R, Thomas J, Tiras E, Torbunov D, Tripathi J, Torun Y, Urheim J, Vahle P, Vasel J, Vokac P, Vrba T, Wallbank M, Warburton T, Wetstein M, Whittington D, Wojcicki S, Wolcott J, Yallappa Dombara A, Yonehara K, Yu S, Yu Y, Zadorozhnyy S, Zalesak J, Zhang Y, Zwaska R. Search for multimessenger signals in NOvA coincident with LIGO/Virgo detections. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.101.112006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zarkowsky DS, Johnson C, Hiramoto JS. Coil-Covering Caliber-Conforming Stent Grafting: The 4CSG Technique. Ann Vasc Surg 2020; 69:448.e1-448.e3. [PMID: 32479880 DOI: 10.1016/j.avsg.2020.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 10/24/2022]
Abstract
Stable coil placement is an imperative when treating arterial pathology at branch points. Coil kick and escape threaten distal organs, particularly as the pack tightens. Before the development of the VBX balloon-expandable stent graft (W.L. Gore, Flagstaff, AZ), vessel caliber change often precluded straightforward stent graft coverage with a single device to secure coils in place. We describe 3 cases using this unique feature of the Gore VBX device to accommodate challenging anatomy. All 3 patients recovered well.
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Johnson C, Jesuraj N. Seeding density is critical for optimizing scalable feeder-free natural killer cell expansion. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Salomon A, Berry I, Tuite AR, Drews S, Hatchette T, Jamieson F, Johnson C, Kwong J, Lina B, Lojo J, Mosnier A, Ng V, Vanhems P, Fisman DN. Influenza increases invasive meningococcal disease risk in temperate countries. Clin Microbiol Infect 2020; 26:1257.e1-1257.e7. [PMID: 31935565 DOI: 10.1016/j.cmi.2020.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 12/31/2019] [Accepted: 01/06/2020] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Invasive meningococcal disease (IMD) is a severe bacterial infection that displays wintertime seasonality in temperate countries. Mechanisms driving seasonality are poorly understood and may include environmental conditions and/or respiratory virus infections. We evaluated the contribution of influenza and environmental conditions to IMD risk, using standardized methodology, across multiple geographical regions. METHODS We evaluated 3276 IMD cases occurring between January 1999 and December 2011 in 11 jurisdictions in Australia, Canada, France and the United States. Effects of environmental exposures and normalized weekly influenza activity on IMD risk were evaluated using a case-crossover design. Meta-analytic methods were used to evaluate homogeneity of effects and to identify sources of between-region heterogeneity. RESULTS After adjustment for environmental factors, elevated influenza activity at a 2-week lag was associated with increased IMD risk (adjusted odds ratio (OR) per standard deviation increase 1.29; 95% confidence interval, 1.04-1.59). This increase was homogeneous across the jurisdictions studied. By contrast, although associations between environmental exposures and IMD were identified in individual jurisdictions, none was generalizable. CONCLUSIONS Using a self-matched design that adjusts for both coseasonality and case characteristics, we found that surges in influenza activity result in an acute increase in population-level IMD risk. This effect is seen across diverse geographic regions in North America, France and Australia. The impact of influenza infection on downstream meningococcal risk should be considered a potential benefit of influenza immunization programmes.
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Barathy C, Malini A, Madhusudan NS, Johnson C. Clinical and microbiological profile of enteric fever among pediatric patients in a tertiary care center in South India: A cross-sectional study. JOURNAL OF CLINICAL SCIENCES 2020. [DOI: 10.4103/jcls.jcls_17_20] [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] Open
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Troxel W, D'Amico E, Dickerson D, Brown R, Klein D, Parker J, Woodward M, Johnson C. Psychosocial and cultural influences on sleep health in urban American Indian/ Alaskan native adolescents: preliminary results from the nayshaw study. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Power R, Bartha G, Harris J, Boyle S, Levy E, Milani P, Tandon P, Li R, Chinnappa M, Haddad A, McNitt P, McClory R, Morra M, Saldivar S, Clark M, Haudenschild C, Newburn E, Johnson C, Chen R, West J. A comprehensive tumour immunogenomics platform for precision immunotherapy: Enabling simultaneous characterization of tumours and the TME from a single FFPE sample. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz447.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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McCleary BV, McNally M, Monaghan D, Mugford DC, Black C, Broadbent R, Chin M, Cormack M, Fox R, Gaines C, Gothard P, Home S, Howes; E, Johnson C, Keeping R, Koliatsou M, Lindhauer M, Marins de Sa R, Martin R, Monaghan D, Nees U, Nishwitz; R, Palmer G, Panozzo J, Recabarren J, Roumeliotis S, Seddig S, Solah V, Sonnet M, Themeier H. Measurement of α-Amylase Activity in White Wheat Flour, Milled Malt, and Microbial Enzyme Preparations, Using the Ceralpha Assay: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/85.5.1096] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
This study was conducted to evaluate the method performance of a rapid procedure for the measurement of α-amylase activity in flours and microbial enzyme preparations. Samples were milled (if necessary) to pass a 0.5 mm sieve and then extracted with a buffer/salt solution, and the extracts were clarified and diluted. Aliquots of diluted extract (containing α-amylase) were incubated with substrate mixture under defined conditions of pH, temperature, and time. The substrate used was nonreducing end-blocked p-nitrophenyl maltoheptaoside (BPNPG7) in the presence of excess quantities of thermostable α-glucosidase. The blocking group in BPNPG7 prevents hydrolysis of this substrate by exo-acting enzymes such as amyloglucosidase, α-glucosidase, and β-amylase. When the substrate is cleaved by endo-acting α-amylase, the nitrophenyl oligosaccharide is immediately and completely hydrolyzed to p-nitrophenol and free glucose by the excess quantities of α-glucosidase present in the substrate mixture. The reaction is terminated, and the phenolate color developed by the addition of an alkaline solution is measured at 400 nm. Amylase activity is expressed in terms of Ceralpha units; 1 unit is defined as the amount of enzyme required to release 1 μmol p-nitrophenyl (in the presence of excess quantities of α-glucosidase) in 1 min at 40°C. In the present study, 15 laboratories analyzed 16 samples as blind duplicates. The analyzed samples were white wheat flour, white wheat flour to which fungal α-amylase had been added, milled malt, and fungal and bacterial enzyme preparations. Repeatability relative standard deviations ranged from 1.4 to 14.4%, and reproducibility relative standard deviations ranged from 5.0 to 16.7%.
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Stanger KJ, Kells NJ, Fisher AD, Jubb T, Rault JL, Johnson C. Evaluation of euthanasia of sheep with intravenous saturated salt solutions to enable the collection of whole, intact brains. Anim Welf 2019. [DOI: 10.7120/09627286.28.4.397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Captive bolts or firearms are unsuitable for euthanasia of livestock when an intact brain is required for diagnostics. Injectable barbiturates can be used, but this method carries risk of poisoning animals eating the carcase. Intravenous saturated salt solutions have been used to euthanase
heavily sedated ruminants and are cheap, readily available and not a risk to scavenging animals. However, there is concern that they may be painful or cause distress to animals that are not unconscious. This study aimed to determine the suitability of saturated salt solutions, in combination
with xylazine, as a method of euthanasia of ruminants using a sheep model. Thirty-two sheep were sedated with xylazine (0.4 mg kg–1 IM) and euthanased with an intravenous overdose of pentobarbitone (PENT; n = 10), saturated potassium chloride (KCL; n = 11) or saturated magnesium
sulphate (MGS; n = 10). Time until end of rhythmic breathing and cardiac arrest, and movement events were recorded. Conscious perception of pain was evaluated by measuring cortical brain activity by electroencephalography (EEG). There was no evidence of perceived pain or unpleasant sensory
experience for any treatment as indicated by P50, P95 and Ptot, and so all methods were deemed humane. Time until transient EEG was comparable for all treatments. Time until onset of isoelectric EEG was prolonged for KCL. Animals euthanased with KCL consistently exhibited severe
reflex movements during infusion (eg kicking, convulsion). No severe movement events were observed in animals euthanased with MGS, hence, physiological and movement data support the preferential use of MGS over KCL.
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Johnson C, Aalseth CE, Alexander TR, Bowyer TW, Chipman V, Day AR, Drellack S, Fast JE, Fritz BG, Hayes JC, Huckins-Gang HE, Humble P, Kirkham RR, Lowrey JD, Mace EK, Mayer MF, McIntyre JI, Milbrath BD, Panisko ME, Paul MJ, Obi CM, Okagawa RK, Olsen KB, Ripplinger MD, Seifert A, Suarez R, Thomle J, Townsend MJ, Woods VT, Zhong L. Migration of noble gas tracers at the site of an underground nuclear explosion at the Nevada National Security Site. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2019; 208-209:106047. [PMID: 31526956 DOI: 10.1016/j.jenvrad.2019.106047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
As part of an underground gas migration study, two radioactive noble gases (37Ar and 127Xe) and two stable tracer gases (SF6 and PFDMCH) were injected into a historic nuclear explosion test chimney and allowed to migrate naturally. The purpose of this experiment was to provide a bounding case (natural transport) for the flow of radioactive noble gases following an underground nuclear explosion. To accomplish this, soil gas samples were collected from a series of boreholes and a range of depths from the shallow subsurface (3 m) to deeper levels (~160 m) over a period of eleven months. These samples have provided insights into the development and evolution of the subsurface plume and constrained the relative migration rates of the radioactive and stable gas species in the case when the driving pressure from the cavity is low. Analysis of the samples concluded that the stable tracer SF6 was consistently enriched in the subsurface samples relative to the radiotracer 127Xe, but the ratios of SF6 and 37Ar remained similar throughout the samples.
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Acero MA, Adamson P, Aliaga L, Alion T, Allakhverdian V, Altakarli S, Anfimov N, Antoshkin A, Aurisano A, Back A, Backhouse C, Baird M, Balashov N, Baldi P, Bambah BA, Bashar S, Bays K, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Blair J, Booth AC, Bour P, Bromberg C, Buchanan N, Butkevich A, Calvez S, Campbell M, Carroll TJ, Catano-Mur E, Cedeno A, Childress S, Choudhary BC, Chowdhury B, Coan TE, Colo M, Cooper J, Corwin L, Cremonesi L, Davies GS, Derwent PF, Ding P, Djurcic Z, Doyle D, Dukes EC, Duyang H, Edayath S, Ehrlich R, Elkins M, Feldman GJ, Filip P, Flanagan W, Frank MJ, Gallagher HR, Gandrajula R, Gao F, Germani S, Giri A, Gomes RA, Goodman MC, Grichine V, Groh M, Group R, Guo B, Habig A, Hakl F, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Hewes J, Himmel A, Holin A, Howard B, Huang J, Hylen J, Jediny F, Johnson C, Judah M, Kakorin I, Kalra D, Kaplan DM, Keloth R, Klimov O, Koerner LW, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kulenberg C, Kumar A, Kuruppu CD, Kus V, Lackey T, Lang K, Lin S, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Martinez-Casales M, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mislivec A, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Mulder K, Murphy R, Musser J, Naples D, Nayak N, Nelson JK, Nichol R, Nikseresht G, Niner E, Norman A, Nosek T, Olshevskiy A, Olson T, Paley J, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan DD, Plunkett RK, Potukuchi B, Principato C, Psihas F, Radovic A, Raj V, Rameika RA, Rebel B, Rojas P, Ryabov V, Samoylov O, Sanchez MC, Sánchez Falero S, Seong IS, Shanahan P, Sheshukov A, Singh P, Singh V, Smith E, Smolik J, Snopok P, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Sutton A, Talaga RL, Tapia Oregui B, Tas P, Thayyullathil RB, Thomas J, Tiras E, Torbunov D, Tripathi J, Tsaris A, Torun Y, Urheim J, Vahle P, Vasel J, Vinton L, Vokac P, Vrba T, Wallbank M, Wang B, Warburton TK, Wetstein M, While M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yallappa Dombara A, Yonehara K, Yu S, Zadorozhnyy S, Zalesak J, Zamorano B, Zwaska R. First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. PHYSICAL REVIEW LETTERS 2019; 123:151803. [PMID: 31702305 DOI: 10.1103/physrevlett.123.151803] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Indexed: 06/10/2023]
Abstract
The NOvA experiment has seen a 4.4σ signal of ν[over ¯]_{e} appearance in a 2 GeV ν[over ¯]_{μ} beam at a distance of 810 km. Using 12.33×10^{20} protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν[over ¯]_{μ}→ν[over ¯]_{e} candidates with a background of 10.3 and 102 ν[over ¯]_{μ}→ν[over ¯]_{μ} candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm_{32}^{2}|=2.48_{-0.06}^{+0.11}×10^{-3} eV^{2}/c^{4} and sin^{2}θ_{23} in the ranges from (0.53-0.60) and (0.45-0.48) in the normal neutrino mass hierarchy. The data exclude most values near δ_{CP}=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ_{23} values in the upper octant by 1.6σ.
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Dy G, Crombet T, Leon K, Mazzora Z, Hernandez D, Lage A, Dozier A, Chen H, Hutson A, Plessinger D, Johnson C. EP1.04-23 Ongoing Phase II Trial of Anti-PD1 Therapy in Combination with CIMAvax-EGF in Patients with Advanced NSCLC or Squamous Cell Head and Neck Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Peng J, Rushton M, Johnson C, Brezden-Masley C, Sulpher J, Chiu MG, Graham ID, Dent S. An international survey of healthcare providers' knowledge of cardiac complications of cancer treatments. CARDIO-ONCOLOGY 2019; 5:12. [PMID: 32154018 PMCID: PMC7048147 DOI: 10.1186/s40959-019-0049-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/31/2019] [Indexed: 12/18/2022]
Abstract
Background Cardio-oncology is a young sub-specialty that addresses the needs of cancer patients at risk of, or who have experienced cancer therapy related cardiac dysfunction (CTRCD). This study assessed clinicians' understanding of cardio-oncology, opinions towards current practice, and approach to diagnosing and managing CTRCD. Methods A 45-question survey was administered online via Survey Monkey and WeChat to health care providers (HCPs) comprising of cardiologists, oncologists, and others from September 2017 to March 2018. Implementation of the survey followed a modified Dillman's Total Design Method. Results In total, 160 responses were collected from 22 countries; majority were from cardiologists (53.8%) and oncologists (32.5%). The remaining 13.7% identified themselves as "others," including general internists, cardio-oncologists, pediatric oncologists, radiation oncologists, cardiac rehabilitation therapists, nurse practitioners, research students, and pharmacists. In the setting of metastatic cancer, there was a difference in risk tolerance for cardiotoxicity between subspecialties. In this case, more cardiologists (36.7%) accepted a 5-10% risk of cardiotoxicity compared to oncologists (20.0%). Majority of cardiologists felt that cardiotoxicity should be monitored, even in asymptomatic cancer patients (55.8%). Only 12% of oncologists selected this response. In contrast, 50.0% of oncologists reported that cardiologists should be involved only when patients develop cardiotoxicity. In comparison, 6.5% of cardiologists selected this response. Majority of cardiologists stated that cardio-oncology clinics would significantly improve cancer patients' prognosis (88.3%); only 45.8% of oncologists shared this opinion. Of all respondents, 66.9% stated they were familiar with a variety of international guidelines for managing cardiotoxicity. Of all oncologists, 65.3% indicated that they referred to these guidelines for clinical decision making. Conclusions Despite the growth of cardio-oncology clinics, there are significant knowledge gaps regarding prevention and treatment strategies for CTRCD among health care providers. Knowledge translation from guidelines and collaboration between cardiologists and oncologists are needed to improve cardiovascular outcomes of cancer patients.
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Huang C, Shiue K, Bartlett G, Agrawal N, Johnson C, Arbab M, Maxim P, DesRosiers C, Mereniuk T, Ellsworth S, Rhome R, Holmes J, Langer M, Zellars R, Lautenschlaeger T. Exploiting Tumor Position Differences between Deep Inspiration and Expiration in Lung Stereotactic Body Radiation Therapy Planning. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kappel C, Rushton M, Johnson C, Aseyev O, Small G, Law A, Ivars J, Dent S. Clinical experience of patients referred to a multidisciplinary cardio-oncology clinic: an observational cohort study. Curr Oncol 2019; 26:e322-e327. [PMID: 31285675 PMCID: PMC6588054 DOI: 10.3747/co.26.4509] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Introduction Cardiovascular disease is the 2nd leading cause of long-term morbidity and mortality in cancer survivors. Cardio-oncology clinics (cocs) have emerged to address the issue; however, there is a paucity of data about the demographics and clinical outcomes of patients seen in the coc setting. Methods Cancer patients referred to The Ottawa Hospital coc were included in this retrospective observational study. Data collected were patient demographics, cancer type and stage, reason for referral, cardiac risk factors, cardiac assessments and treatment, and clinical outcomes. Results Between 2008 and 2015, 779 patients (516 women, 66%; 263 men, 34%) were referred to the coc. Median age of the patients at cancer diagnosis was 60 years (range: 18-90 years). The most frequent reasons for referral were decreased left ventricular ejection fraction (33%), pre-chemotherapy assessment (14%), and arrhythmia (14%). Treatment with cardiac medication was given in 322 patients (41%), 181 (56%) of whom received more than 2 cardiac medications, with 57 (18%) receiving an angiotensin-converting enzyme inhibitor (acei), 46 (14%) receiving an acei and a beta-blocker, and 38 (12%) receiving a beta-blocker. Of 163 breast cancer patients, 129 (79%) were able to complete targeted therapy with coc co-management. Most of the 779 patients (n = 643, 83%) were alive at the time of the last data collection. Conclusions This cohort study is one of the largest to report characteristics and clinical outcomes of patients referred to a coc. Collaboration between oncologists and cardiologists resulted in completion of cancer therapy in most patients. Ongoing analysis of referral patterns, management plans, and patient outcomes will help to guide the cardiac care of oncology patients, ultimately optimizing cancer and cardiac outcomes alike.
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Florez-Mausa M, Khalil A, Burnet I, Hill U, Barker H, Johnson C, Haworth C. P346 ECG abnormalities and cardiovascular risk factors in an adult cystic fibrosis cohort in the East of England. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30638-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kosalka P, Johnson C, Turek M, Sulpher J, Law A, Botros J, Dent S, Aseyev O. Effect of obesity, dyslipidemia, and diabetes on trastuzumab-related cardiotoxicity in breast cancer. ACTA ACUST UNITED AC 2019; 26:e314-e321. [PMID: 31285674 DOI: 10.3747/co.26.4823] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Clinical trials have demonstrated an increased risk of cardiotoxicity in patients with breast cancer (bca) receiving trastuzumab-based therapy. Diabetes, dyslipidemia, and obesity are known risk factors for cardiovascular disease. Studies have yielded conflicting results about whether those factors increase the risk of cardiotoxicity in patients with bca receiving trastuzumab. Methods In this retrospective cohort study, data were collected for 243 patients with bca positive for her2 (the human epidermal growth factor receptor 2) who were receiving trastuzumab and who were referred to The Ottawa Hospital Cardio-oncology Referral Clinic between 2008 and 2013. The data collected included patient demographics, reason for referral, cardiac function, chemotherapy regimen (including anthracycline use), and 3 comorbidities (diabetes, dyslipidemia, obesity). Rates of symptomatic cancer treatment-related cardiac dysfunction (sctcd) and asymptomatic decline in left ventricular ejection fraction (adlvef) were calculated for patients with and without the comorbidities of interest. Results Of the 243 identified patients, 104 had either diabetes, dyslipidemia, or obesity. In that population, the most likely reason for referral to the cardio-oncology clinic was adlvef. The combination of 2 or 3 comorbidities significantly increased the incidence of sctcd in our population, reaching a rate of 67% for patients with obesity and dyslipidemia [relative risk (rr): 2.2; p = 0.04], 69% for patients with obesity and diabetes (rr: 2.3; p = 0.02), and 72% for patients with all 3 risk factors (rr: 2.4; p = 0.08). Conclusions The combination of 2 or 3 comorbidities significantly increases the incidence of symptomatic cancer treatment-related cardiotoxicity. Patients with bca experiencing cancer treatment-related cardiotoxicity who have a history of diabetes, dyslipidemia, and obesity might require more proactive strategies for prevention, detection, and treatment of cardiotoxicity while receiving trastuzumab-based treatment.
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Johnson C, Caputo R, Karwin C, Murgia S, Ritz S, Shelton J. Search for Gamma-ray Emission from p-wave Dark Matter Annihilation in the Galactic Center. PHYSICAL REVIEW. D. (2016) 2019; 99:10.1103/PhysRevD.99.103007. [PMID: 31535060 PMCID: PMC6749172 DOI: 10.1103/physrevd.99.103007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Indirect searches for dark matter through Standard Model products of its annihilation generally assume a cross-section which is dominated by a term independent of velocity (s-wave annihilation). However, in many DM models an s-wave annihilation cross-section is absent or helicity suppressed. To reproduce the correct DM relic density in these models, the leading term in the cross section is proportional to the DM velocity squared (p-wave annihilation). Indirect detection of such p-wave DM is difficult because the average velocities of DM in galaxies today are orders of magnitude slower than the DM velocity at the time of decoupling from the primordial thermal plasma, thus suppressing the annihilation cross-section today by some five orders of magnitude relative to its value at freeze out. Thus p-wave DM is out of reach of traditional searches for DM annihilations in the Galactic halo. Near the region of influence of a central supermassive black hole, such as Sgr A*, however, DM can form a localized over-density known as a "spike". In such spikes the DM is predicted to be both concentrated in space and accelerated to higher velocities, thereby allowing the γ-ray signature from its annihilation to potentially be detectable above the background. We use the Fermi Large Area Telescope to search for the γ-ray signature of p-wave annihilating DM from a spike around Sgr A* in the energy range 10 GeV-600 GeV. Such a signal would appear as a point source and would have a sharp line or box-like spectral features difficult to mimic with standard astrophysical processes, indicating a DM origin. We find no significant excess of γ rays in this range, and we place upper limits on the flux in γ-ray boxes originating from the Galactic Center. This result, the first of its kind, is interpreted in the context of different models of the DM density near Sgr A*.
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Johnson C, Mitchell J, Manyapu S, Hawkins C, Singer A, Prologo J. 04:12 PM Abstract No. 401 Natural history of motor nerve cryoablation: a retrospective cohort analysis. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Lozier MS, Li F, Bacon S, Bahr F, Bower AS, Cunningham SA, de Jong MF, de Steur L, deYoung B, Fischer J, Gary SF, Greenan BJW, Holliday NP, Houk A, Houpert L, Inall ME, Johns WE, Johnson HL, Johnson C, Karstensen J, Koman G, Le Bras IA, Lin X, Mackay N, Marshall DP, Mercier H, Oltmanns M, Pickart RS, Ramsey AL, Rayner D, Straneo F, Thierry V, Torres DJ, Williams RG, Wilson C, Yang J, Yashayaev I, Zhao J. A sea change in our view of overturning in the subpolar North Atlantic. Science 2019; 363:516-521. [PMID: 30705189 DOI: 10.1126/science.aau6592] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 12/18/2018] [Indexed: 11/03/2022]
Abstract
To provide an observational basis for the Intergovernmental Panel on Climate Change projections of a slowing Atlantic meridional overturning circulation (MOC) in the 21st century, the Overturning in the Subpolar North Atlantic Program (OSNAP) observing system was launched in the summer of 2014. The first 21-month record reveals a highly variable overturning circulation responsible for the majority of the heat and freshwater transport across the OSNAP line. In a departure from the prevailing view that changes in deep water formation in the Labrador Sea dominate MOC variability, these results suggest that the conversion of warm, salty, shallow Atlantic waters into colder, fresher, deep waters that move southward in the Irminger and Iceland basins is largely responsible for overturning and its variability in the subpolar basin.
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Johnson C, Rozati S. Risk of cardiovascular events in patients with cutaneous T-cell lymphomas. Eur J Cancer 2019. [DOI: 10.1016/s0959-8049(19)30525-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lee S, Trivedi U, Johnson C, Farquharson C, Bergkvist GT. Optimised isolation method for RNA extraction suitable for RNA sequencing from feline teeth collected in a clinical setting and at post mortem. Vet Res Commun 2018; 43:17-27. [PMID: 30402716 DOI: 10.1007/s11259-018-9739-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 10/26/2018] [Indexed: 01/28/2023]
Abstract
Advanced next generation sequencing approaches have started to reveal the cellular and molecular complexity of the microenvironment in many tissues. It is challenging to obtain high quality RNA from mineralised tissues. We developed an optimised method of RNA extraction from feline teeth collected in a clinical setting and at post mortem. Teeth were homogenised in phenol-guanidinium solution at near-freezing temperatures and followed by solid-phase nucleic acid extraction utilising a commercially available kit. This method produced good RNA yields and improved RNA quality based on RNA integrity numbers equivalent (RINe) from an average of 3.6 to 5.6. No correlation was found between RNA purity parameters measured by A260:280 or A230:260 ratios and degree of RNA degradation. This implies that RNA purity indicators cannot be reliably used as parameters of RNA integrity. Two reference genes (GAPDH, RPS19) showed significant changes in expression levels by qPCR at low and moderate RINe values, while RPL17 was stable at all RINe values tested. Furthermore, we investigated the effect of quantity and quality of RNA on the quality of the resultant RNA sequencing (RNA-Seq) data. Thirteen RNA-seq data showed similar duplication and mapping rates (94 to 95%) against the feline genome regardless of RINe values. However one low yield sample with a high RINe value showed a high duplication rate and it was an outlier on the RNA-seq multidimensional scaling plot. We conclude that the overall yield of RNA was more important than quality of RNA for RNA-seq quality control. These results will guide researchers who wish to perform RNA extractions from mineralised tissues, especially if collecting in a clinical setting with the recognised restraints that this imposes.
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Huang A, Swanson C, Babineau D, Whalen E, Gill M, Shao B, Liu A, Jepson B, Gruchalla R, O'Connor G, Pongracic J, Kercsmar C, Hershey GK, Zoratti E, Johnson C, Teach S, Kattan M, Bacharier L, Beigelman A, Sigelman S, Gergen P, Wheatley L, Presnell S, Togias A, Busse W, Jackson D, Altman M. EPITHELIAL CELL GENE NETWORKS UPREGULATED IN OBESE ASTHMATIC CHILDREN. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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