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Casco N, Jorge AL, Palmero D, Alffenaar JW, Fox G, Ezz W, Cho JG, Skrahina A, Solodovnikova V, Bachez P, Arbex MA, Galvão T, Rabahi M, Pereira GR, Sales R, Silva DR, Saffie MM, Miranda RC, Cancino V, Carbonell M, Cisterna C, Concha C, Cruz A, Salinas NE, Revillot ME, Farias J, Fernandez I, Flores X, Gallegos P, Garavagno A, Guajardo C, Bahamondes MH, Merino LM, Muñoz E, Muñoz C, Navarro I, Navarro J, Ortega C, Palma S, Pardenas AM, Pereira G, Castillo PP, Pinto M, Pizarro R, Rivas F, Rodriguez P, Sánchez C, Serrano A, Soto A, Taiba C, Venegas M, Vergara MS, Vilca E, Villalon C, Yucra E, Li Y, Cruz A, Guelvez B, Plaza R, Tello K, Andréjak C, Blanc FX, Dourmane S, Froissart A, Izadifar A, Rivière F, Schlemmer F, Gupta N, Ish P, Mishra G, Sharma S, Singla R, Udwadia ZF, Manika K, Diallo BD, Hassane-Harouna S, Artiles N, Mejia LA, Alladio F, Calcagno A, Centis R, Codecasa LR, D Ambrosio L, Formenti B, Gaviraghi A, Giacomet V, Goletti D, Gualano G, Kuksa L, Danila E, Diktanas S, Miliauskas S, Ridaura RL, López F, Torrico MM, Rendon A, Akkerman OW, Piubello A, Souleymane MB, Aizpurua E, Gonzales R, Jurado J, Loban A, Aguirre S, de Egea V, Irala S, Medina A, Sequera G, Sosa N, Vázquez F, Manga S, Villanueva R, Araujo D, Duarte R, Marques TS, Grecu VI, Socaci A, Barkanova O, Bogorodskaya M, Borisov S, Mariandyshev A, Kaluzhenina A, Stosic M, Beh D, Ng D, Ong C, Solovic I, Dheda D, Gina P, Caminero JA, Cardoso-Landivar J, de Souza Galvão ML, Dominguez-Castellano A, García-García JM, Pinargote IM, Fernandez SQ, Sánchez-Montalvá A, Huguet ET, Murguiondo MZ, Bruchfeld J, Bart PA, Mazza-Stalder J, Tiberi S, Arrieta F, Heysell S, Logsdon J, Young L. TB and COVID-19 co-infection: rationale and aims of a global study. Int J Tuberc Lung Dis 2021; 25:78-80. [PMID: 33384052 DOI: 10.5588/ijtld.20.0786] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
| | | | | | | | - G Fox
- New South Wales, Australia
| | - W Ezz
- New South Wales, Australia
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Green MA, Subramanian SV, Strong M, Cooper CL, Loban A, Bissell P. 'Fish out of water': a cross-sectional study on the interaction between social and neighbourhood effects on weight management behaviours. Int J Obes (Lond) 2014; 39:535-41. [PMID: 25088377 PMCID: PMC4229317 DOI: 10.1038/ijo.2014.152] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 07/01/2014] [Accepted: 07/18/2014] [Indexed: 02/08/2023]
Abstract
Objective To analyse whether an individual’s neighbourhood influences the uptake of weight management strategies and if there is an interaction between individual socio-economic status (SES) and neighbourhood deprivation. Methodology Data were collected from the Yorkshire Health Study (2010-2012) for 27 806 individuals on the use of the following weight management strategies; ‘slimming clubs’, ‘healthy eating’, ‘increasing exercise’ and ‘controlling portion size’. A multi-level logistic regression was fit to analyse the use of these strategies, controlling for age, sex, body mass index, education, neighbourhood deprivation and neighbourhood population turnover (a proxy for neighbourhood social capital). A cross-level interaction term was included for education and neighbourhood deprivation. Lower Super Output Area was used as the geographical scale for the areal unit of analysis. Results Significant neighbourhood effects were observed for use of ‘slimming clubs’, ‘healthy eating’ and ‘increasing exercise’ as weight management strategies, independent of individual- and area-level covariates. A significant interaction between education and neighbourhood deprivation was observed across all strategies, suggesting that as an area becomes more deprived, individuals of the lowest education are more likely not to use any strategy compared to those of the highest education. Conclusions Neighbourhoods modify/amplify individual disadvantage and social inequalities, with individuals of low education disproportionally affected by deprivation. It is important to include neighbourhood-based explanations in the development of community based policy interventions to help tackle obesity.
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Affiliation(s)
- M A Green
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | | | - M Strong
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - C L Cooper
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - A Loban
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - P Bissell
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
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Abstract
1. The extracellular proteins caeruloplasmin and transferrin have important antioxidant properties by virtue of the fact that they inhibit iron-dependent free radical production, and ensuing damage to cells. 2. Albumin is a plasma protein which can loosely bind iron, but the redox activity of this iron has not been fully investigated. 3. The ability of albumin to bind iron and to prevent iron-dependent lipid peroxidation in vitro was investigated using liposomes and a rat brain homogenate system. 4. The iron-binding capacity of albumin was found to be substantial, and albumin inhibited lipid peroxidation in a concentration-dependent manner in both systems used. 5. This antioxidant property of albumin may be especially important in the plasma of babies born prematurely, in whom transferrin and caeruloplasmin concentrations are often very low, and in whom non-transferrin-bound iron has been detected in the plasma.
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Affiliation(s)
- A Loban
- University Department of Paediatrics, Sheffield Children's Hospital, U.K
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Powers HJ, Loban A, Silvers K, Gibson AT. Vitamin C at concentrations observed in premature babies inhibits the ferroxidase activity of caeruloplasmin. Free Radic Res 1995; 22:57-65. [PMID: 7889148 DOI: 10.3109/10715769509147528] [Citation(s) in RCA: 31] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
High concentrations of total vitamin C have been measured in the plasma of premature infants. At these concentrations ascorbic acid inhibited the ferroxidase activity of caeruloplasmin measured directly in vitro. The degree of inhibition was dependent on the ratio of ascorbic acid: caeruloplasmin. Values for the ratio of vitamin C: caeruloplasmin measured in premature babies would be predicted to inhibit ferroxidase activity by up to at least 80%. Ferroxidase activity measured in the plasma of premature babies increased from birth but was significantly lower than in plasma collected from adults (< 0.001). Plasma ferroxidase activity was correlated with plasma caeruloplasmin concentration and, in premature babies only, showed a negative correlation with the ratio of vitamin C to caeruloplasmin. High levels of vitamin C in premature babies may compromise antioxidant mechanisms and exacerbate oxidant damage.
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Affiliation(s)
- H J Powers
- University Department of Paediatrics, Jessop Hospital for Women, Sheffield, U.K
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