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Foo YZ, Sutherland CAM, Burton NS, Nakagawa S, Rhodes G. Accuracy in Facial Trustworthiness Impressions: Kernel of Truth or Modern Physiognomy? A Meta-Analysis. Pers Soc Psychol Bull 2021; 48:1580-1596. [PMID: 34609231 DOI: 10.1177/01461672211048110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Being able to identify trustworthy strangers is a critical social skill. However, whether such impressions are accurate is debatable. Critically, the field currently lacks a quantitative summary of the evidence. To address this gap, we conducted two meta-analyses. We tested whether there is a correlation between perceived and actual trustworthiness across faces, and whether perceivers show above-chance accuracy at assessing trustworthiness. Both meta-analyses revealed significant, modest accuracy (face level, r = .14; perceiver level, r = .27). Perceiver-level effects depended on domain, with aggressiveness and sexual unfaithfulness having stronger effects than agreeableness, criminality, financial reciprocity, and honesty. We also applied research weaving to map the literature, revealing potential biases, including a preponderance of Western studies, a lack of "cross-talk" between research groups, and clarity issues. Overall, this modest accuracy is unlikely to be of practical utility. Moreover, we strongly urge the field to improve reporting standards and generalizability of the results.
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Affiliation(s)
- Y Z Foo
- University of Western Australia, Crawley, Australia.,University of New South Wales, Randwick, Australia
| | - C A M Sutherland
- University of Western Australia, Crawley, Australia.,University of Aberdeen, UK
| | - N S Burton
- University of Western Australia, Crawley, Australia
| | - S Nakagawa
- University of New South Wales, Randwick, Australia
| | - G Rhodes
- University of Western Australia, Crawley, Australia
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Mackay EB, Feuchtmayr H, De Ville MM, Thackeray SJ, Callaghan N, Marshall M, Rhodes G, Yates CA, Johnes PJ, Maberly SC. Dissolved organic nutrient uptake by riverine phytoplankton varies along a gradient of nutrient enrichment. Sci Total Environ 2020; 722:137837. [PMID: 32197159 DOI: 10.1016/j.scitotenv.2020.137837] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/04/2020] [Accepted: 03/08/2020] [Indexed: 05/27/2023]
Abstract
The concentration of dissolved organic matter (DOM) in freshwaters is increasing in large areas of the world. In addition to carbon, DOM contains nitrogen and phosphorus and there is growing concern that these organic nutrients may be bioavailable and contribute to eutrophication. However, relatively few studies have assessed the potential for dissolved organic nitrogen (DON) or dissolved organic phosphorus (DOP) compounds to be bioavailable to natural river phytoplankton communities at different locations or times. Temporal and spatial variations in uptake, relative to environmental characteristics were examined at six riverine sites in two contrasting catchments in the UK. This study also examined how the uptake by riverine phytoplankton of four DON and four DOP compounds commonly found in rivers, varied with concentration. Total nitrogen (TN) and phosphorus (TP) concentrations, the proportion of inorganic nutrient species, and nutrient limitation varied temporally and spatially, as did the potential for DON and DOP uptake. All eight of the DOM compounds tested were bioavailable, but to different extents. Organic nutrient use depended on the concentration of the organic compound supplied, with simple compounds (urea and glucose-6-phosphate) supporting algal growth even at very low concentrations. DON use was negatively correlated with the TN and ammonia concentration and DOP use was negatively correlated with soluble reactive phosphorus (SRP) and dissolved organic carbon (DOC) concentration. The evidence indicates that DOM in rivers has been overlooked as a potential source of nutrients to phytoplankton and therefore as an agent of eutrophication.
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Affiliation(s)
- E B Mackay
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, UK.
| | - H Feuchtmayr
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, UK
| | - M M De Ville
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, UK
| | - S J Thackeray
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, UK
| | - N Callaghan
- UK Centre for Ecology & Hydrology, Environment Centre Wales, Bangor, Gwynedd LL57 2UW, UK
| | - M Marshall
- School of Environment, Natural Resources and Geography, Bangor University, Environment Centre Wales, Bangor, Gwynedd LL57 2UW, UK
| | - G Rhodes
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, UK
| | - C A Yates
- School of Geographical Sciences, University of Bristol, University Road, Bristol BS8 1SS, UK
| | - P J Johnes
- School of Geographical Sciences, University of Bristol, University Road, Bristol BS8 1SS, UK
| | - S C Maberly
- UK Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, UK
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Abstract
The communication of risk in dental settings is a routine task that most clinicians are familiar with in their clinical encounters. However, work from medical settings has suggested that using this process in order to support health behaviour change in people may well be undermined by difficulties in understanding risk information, in presenting the information in a way that is clearly understood by the recipient and in the effects that such information may have for supporting further health behaviours by patients. This paper synthesises literature in the area that addresses these issues and explores approaches dental care professionals might consider when communicating risks in the dental surgery.
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Affiliation(s)
- K Asimakopoulou
- King's College London, Dental Institute, Division of Population and Patient Health, Social and Behavioural Sciences Group, Floor 18, Guy's Tower, Great Maze Pond, London, SE1 9RW
| | - G Rhodes
- King's College London, Dental Institute, Division of Population and Patient Health, Social and Behavioural Sciences Group, Floor 18, Guy's Tower, Great Maze Pond, London, SE1 9RW
| | - B Daly
- King's College London, Dental Institute, Division of Population and Patient Health, Social and Behavioural Sciences Group, Floor 18, Guy's Tower, Great Maze Pond, London, SE1 9RW
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Crookes K, Ewing L, Guildenhuys JD, Hayward W, Oxner M, Pond S, Rhodes G. Computer generated faces may not tap face expertise. J Vis 2014. [DOI: 10.1167/14.10.819] [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: 11/24/2022] Open
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Kloth N, Shields S, Rhodes G. On the other side of the fence: The effects of social categorisation and spatial arrangement on memory for own-race and other-race faces. J Vis 2014. [DOI: 10.1167/14.10.1261] [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: 11/24/2022] Open
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Burton N, Jeffery L, Calder A, Rhodes G. Adaptation to an average expression improves discrimination of facial expressions. J Vis 2014. [DOI: 10.1167/14.10.815] [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: 11/24/2022] Open
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Walsh JA, Maurer D, Vida MD, Rhodes G, Jeffery L, Rutherford MD. Facial identity is encoded relative to the norm in adults with autism spectrum disorder. J Vis 2014. [DOI: 10.1167/14.10.683] [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: 11/24/2022] Open
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10
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Neumann M, Ng R, Rhodes G, Palermo R. Determinants of ensemble representations for face identity. J Vis 2014. [DOI: 10.1167/14.10.555] [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: 11/24/2022] Open
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Laguesse R, Tez T, Hall B, Irons J, McKone E, Daini R, Albonico A, Malaspina M, Taylor E, Rhodes G, Charpentier A, Rossion B, Palermo R. Subjective self-assessment of face recognition ability is only weakly related to objective measures of face recognition performance. J Vis 2013. [DOI: 10.1167/13.9.979] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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O'Neil SF, Mac A, Rhodes G, Webster MA. Adding years to your life (or at least looking like it): The form of age aftereffects in face adaptation. J Vis 2013. [DOI: 10.1167/13.9.987] [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: 11/24/2022] Open
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Hayward W, Crookes K, Favelle S, Rhodes G. Why are face composites difficult to recognize? J Vis 2011. [DOI: 10.1167/11.11.668] [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: 11/24/2022] Open
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Jurs B, Burkhardt A, Blaha L, Rhodes G, Jeffery L, Busey T. Adaptation modulates the electrophysiological substrates of perceived facial distortion: Support for opponent coding. J Vis 2011. [DOI: 10.1167/11.11.583] [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: 11/24/2022] Open
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Mo H, Yang C, Wang K, Wang Y, Huang M, Murray B, Qi X, Sun SC, Deshpande M, Rhodes G, Miller MD. Estimation of inhibitory quotient using a comparative equilibrium dialysis assay for prediction of viral response to hepatitis C virus inhibitors. J Viral Hepat 2011; 18:338-48. [PMID: 20456634 DOI: 10.1111/j.1365-2893.2010.01314.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The relationship of inhibitory quotient (IQ) with the virologic response to specific inhibitors of human hepatitis C virus (HCV) and the best method to correct for serum protein binding in calculating IQ have not been addressed. A common method is to determine a fold shift by comparing the EC(50) values determined in cell culture in the absence and presence of human serum (fold shift in EC(50) ), but this method has a number of disadvantages. In the present study, the fold shifts in drug concentrations between 100% human plasma (HP) and cell culture medium (CCM) were directly measured using a modified comparative equilibrium dialysis (CED) assay for three HCV protease inhibitors (PIs) and for a novel HCV inhibitor GS-9132. The fold shift values in drug concentration between the HP and CCM (CED ratio) were ∼1 for SCH-503034, VX-950 and GS-9132 and 13 for BILN-2061. These values were ∼3-10-fold lower than the fold shift values calculated from the EC(50) assay for all inhibitors except BILN-2061. Using the CED values, a consistent pharmacokinetic and pharmacodynamic relationship was observed for the four HCV inhibitors analysed. Specifically, an approximate 1 log(10) reduction in HCV RNA was achieved with an IQ close to 1, while 2-3 and greater log(10) reductions in HCV RNA were achieved with IQ values of 3-5 and greater, respectively. Thus, use of CED to define IQ provides a predictive and quantitative approach for the assessment of the in vivo potency of HCV PIs and GS-9132. This method provides a framework for the evaluation of other classes of drugs that are bound by serum proteins but require the presence of serum for in vitro evaluation.
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Affiliation(s)
- H Mo
- Department of Clinical Virology, Gilead Sciences Inc., Foster City, CA, USA.
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Armann R, Jeffery L, Calder AJ, Bulthoff I, Rhodes G. Race-specific norms for coding face identity and a functional role for norms. J Vis 2010. [DOI: 10.1167/10.7.706] [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: 11/24/2022] Open
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Jeffery L, Rhodes G, McKone E, Pellicano E, Crookes K, Taylor L. Children's Face Coding is Norm-Based rather than Exemplar-based: Evidence From Face Identity Aftereffects. J Vis 2010. [DOI: 10.1167/10.7.580] [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: 11/24/2022] Open
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Jeffery L, McKone E, Haynes R, Firth E, Pellicano E, Rhodes G. Four-to-six-year-old children use norm-based coding in face-space. J Vis 2010; 10:18. [DOI: 10.1167/10.5.18] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Xu L, Liu H, Murray B, Callebaut C, Hong A, Vivian R, Lee M, Tsai L, Stray K, Chau J, Strickley R, Koziara J, Choi Y, Rhodes G, Desai M. Discovery of GS-9350: A Novel and Selective Pharmacoenhancer without Anti-HIV Activity. Antiviral Res 2010. [DOI: 10.1016/j.antiviral.2010.02.341] [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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Jeffery L, Rhodes G, Busey T. View-specific coding of face shape. J Vis 2010. [DOI: 10.1167/6.6.669] [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: 11/24/2022] Open
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Hayward W, Zhao M, Cheung O, Rhodes G, Gauthier I. Dissociating contributions of configural and component information to the own-race advantage in face recognition. J Vis 2010. [DOI: 10.1167/9.8.504] [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: 11/24/2022] Open
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Jaquet E, Rhodes G, Hayward WG. It's more than just physical: The contribution of social category information to race-selective face aftereffects. J Vis 2010. [DOI: 10.1167/8.6.261] [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: 11/24/2022] Open
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27
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Elms NM, Mondloch CJ, Maurer D, Hayward WG, Rhodes G, Tanaka J, Zhou G. Other-race faces: Limitations of expert face processing. J Vis 2010. [DOI: 10.1167/8.6.260] [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: 11/24/2022] Open
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Jeffery L, Rhodes G. Aftereffects reveal enhanced face-coding plasticity in young children. J Vis 2010. [DOI: 10.1167/8.6.187] [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: 11/24/2022] Open
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Rhodes G, Michie P, Hughes M, Byatt G. The Fusiform Face Area spontaneously codes spatial relations in faces. J Vis 2010. [DOI: 10.1167/8.6.165] [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: 11/24/2022] Open
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Rhodes G, Maloney LT, Turner J, Ewing L. Is the average face special? J Vis 2010. [DOI: 10.1167/6.6.283] [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: 11/24/2022] Open
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Hayward WG, Rhodes G, Winkler C, Schwaninger A. Own-race face effects in processing of configural and component information by Chinese observers. J Vis 2010. [DOI: 10.1167/5.8.534] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
The psychological mechanisms underlying attractiveness judgements in humans are thought to be evolved adaptations for finding a high quality mate. The phenotype-linked fertility hypothesis proposes that females obtain reliable information on male fertility from male expression of sexual traits. A previous study of Spanish men reported that facial attractiveness was positively associated with semen quality. We aimed to determine whether this effect was widespread by examining a large sample of Australian men. We also extended our study to determine whether cues to semen quality are provided by components of attractiveness: masculinity, averageness and symmetry. Each male participant was photographed and provided a semen sample that was analyzed for sperm morphology, motility and concentration. Two independent sets of women rated the male photographs for attractiveness, and three further sets of 12 women rated the photographs for masculinity, symmetry or averageness. We found no significant correlations between semen quality parameters and attractiveness or attractive traits. Although male physical attractiveness may signal aspects of mate quality, our results suggest that phenotype-linked cues to male fertility may not be general across human populations.
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Affiliation(s)
- M Peters
- Centre for Evolutionary Biology, School of Animal Biology, University of Western Australia, Crawley, WA, Australia.
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Pickup RW, Rhodes G, Bull TJ, Arnott S, Sidi-Boumedine K, Hurley M, Hermon-Taylor J. Mycobacterium avium subsp. paratuberculosis in lake catchments, in river water abstracted for domestic use, and in effluent from domestic sewage treatment works: diverse opportunities for environmental cycling and human exposure. Appl Environ Microbiol 2006; 72:4067-77. [PMID: 16751517 PMCID: PMC1489623 DOI: 10.1128/aem.02490-05] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [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: 12/16/2022] Open
Abstract
Mycobacterium avium subsp. paratuberculosis from infected animals enters surface waters and rivers in runoff from contaminated pastures. We studied the River Tywi in South Wales, United Kingdom, whose catchment comprises 1,100 km2 containing more than a million dairy and beef cattle and more than 1.3 million sheep. The River Tywi is abstracted for the domestic water supply. Between August 2002 and April 2003, 48 of 70 (68.8%) twice-weekly river water samples tested positive by IS900 PCR. In river water, the organisms were associated with a suspended solid which was depleted by the water treatment process. Disposal of contaminated slurry back onto the land established a cycle of environmental persistence. A concentrate from 100 liters of finished water tested negative, but 1 of 54 domestic cold water tanks tested positive, indicating the potential for these pathogens to access domestic outlets. In the separate English Lake District region, with hills up to 980 m, tests for M. avium subsp. paratuberculosis in the high hill lakes and sediments were usually negative, but streams and sediments became positive lower down the catchment. Sediments from 9 of 10 major lakes receiving inflow from these catchments were positive, with sediment cores indicating deposition over at least 40 to 50 years. Two of 12 monthly 1-liter samples of effluent and a single 100-liter sample from the Ambleside sewage treatment works were positive for M. avium subsp. paratuberculosis. Since Lake Ambleside discharges into Lake Windermere, which is available for domestic supply, there is a potential for these organisms to cycle within human populations.
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Affiliation(s)
- R W Pickup
- Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster LA21 4AP, United Kingdom.
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Abstract
OBJECTIVE Mutual Health Organizations (MHO) emerged in Ghana in the mid-1990s. The organizational structure and financial management of private and public MHO hold important lessons for the development of national health insurance in Ghana, but there is little evidence to date on their features. This paper aims at filling this data gap, and at making recommendations to Ghanaian authorities on how to stimulate the success of MHO. METHODS Survey among 45 private and public MHO in Ghana in 2004-2005, asking questions on their structure, financial management and financial position. RESULTS Private MHO had more autonomy in setting premiums and benefit packages, and had higher community participation in meetings than public MHO. MHO in general had few measures in place to control moral hazard and reduce adverse selection, but more measures to control fraud and prevent cost escalation. The vast majority of schemes were managed by formally trained and paid staff. The financial results varied considerably. CONCLUSIONS Ghanaian authorities regulate the newly established public MHO, but may do good by leaving them a certain level of autonomy in decision-making and secure community participation. The financial management of MHO is suboptimal, which indicates the need for technical assistance.
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Affiliation(s)
- R Baltussen
- Institute for Medical Technology Assessment, Erasmus University Rotterdam, The Netherlands.
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Watson TL, Rhodes G, Clifford CWG. Face adaptation contingent on orientation. J Vis 2005. [DOI: 10.1167/5.8.826] [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: 11/24/2022] Open
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37
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Pickup RW, Rhodes G, Arnott S, Sidi-Boumedine K, Bull TJ, Weightman A, Hurley M, Hermon-Taylor J. Mycobacterium avium subsp. paratuberculosis in the catchment area and water of the River Taff in South Wales, United Kingdom, and its potential relationship to clustering of Crohn's disease cases in the city of Cardiff. Appl Environ Microbiol 2005; 71:2130-9. [PMID: 15812047 PMCID: PMC1082532 DOI: 10.1128/aem.71.4.2130-2139.2005] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Accepted: 11/15/2004] [Indexed: 12/12/2022] Open
Abstract
In South Wales, United Kingdom, a populated coastal region lies beneath hill pastures grazed by livestock in which Mycobacterium avium subsp. paratuberculosis is endemic. The Taff is a spate river running off the hills and through the principal city of Cardiff. We sampled Taff water above Cardiff twice weekly from November 2001 to November 2002. M. avium subsp. paratuberculosis was detected by IS900 PCR and culture. Thirty-one of 96 daily samples (32.3%) were IS900 PCR positive, and 12 grew M. avium subsp. paratuberculosis bovine strains. Amplicon sequences from colonies were identical to the sequence with GenBank accession no. X16293, whereas 16 of 19 sequences from river water DNA extracts had a single-nucleotide polymorphism at position 214. This is consistent with a different strain of M. avium subsp. paratuberculosis in the river, which is unculturable by the methods we used. Parallel studies showed that M. avium subsp. paratuberculosis remained culturable in lake water microcosms for 632 days and persisted to 841 days. Of four reservoirs controlling the catchment area of the Taff, M. avium subsp. paratuberculosis was present in surface sediments from three and in sediment cores from two, consistent with deposition over at least 50 years. Previous epidemiological research in Cardiff demonstrated a highly significant increase of Crohn's disease in 11 districts. These bordered the river except for a gap on the windward side. A topographical relief map shows that this gap is directly opposite a valley open to the prevailing southwesterly winds. This would influence the distribution of aerosols carrying M. avium subsp. paratuberculosis from the river.
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Affiliation(s)
- R W Pickup
- Centre for Ecology and Hydrology, Library Ave., Bailrigg, Lancaster LA21 4AP, United Kingdom.
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Lena P, Villinger F, Giavedoni L, Miller CJ, Rhodes G, Luciw P. Co-immunization of rhesus macaques with plasmid vectors expressing IFN-gamma, GM-CSF, and SIV antigens enhances anti-viral humoral immunity but does not affect viremia after challenge with highly pathogenic virus. Vaccine 2002; 20 Suppl 4:A69-79. [PMID: 12477432 DOI: 10.1016/s0264-410x(02)00391-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [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: 11/21/2022]
Abstract
To investigate the adjuvant capacity of granulocyte-macrophage colony-stimulating factor (GM-CSF) and interferon (IFN-gamma), we cloned these rhesus cytokines into a mammalian expression vector. Two groups of six rhesus macaques (Macaca mulatta) received intradermal immunizations of plasmid DNA coding for SIV Eng and Gag, and influenza virus nucleoprotein (Flu-NP), with or without the co-administration of plasmid DNA coding for these cytokines. Humoral immune responses to antigens of both of these viruses and SIV specific T cell proliferative responses were significantly enhanced by co-immunization with the cytokines. These twelve monkeys, and a group of six naive controls, were challenged by the oral mucosal route with the uncloned and highly pathogenic SIVmac251. All monkeys became infected. The early CD4 decline was reduced in the group co-immunized with cytokine and viral plasmids. Unexpectedly, plasma viremia set points were not different in this co-immunized group and the non-immunized control group. On the other hand, monkeys vaccinated with equivalent amounts of empty vector plasmid (i.e. no cytokine inserts) along with plasmids expressing viral antigens demonstrated a slight but significant decrease in acute viremia compared to non-immunized controls (P<0.02). However, viral loads at set points were not significantly different between both the immunized and the non-immunized control group. Thus, although the cytokine vectors demonstrated detectable enhancement of the immune response to different viral antigens, such enhanced response did not translate into better anti-viral control in our experiment. These results underscore the need for further testing of cytokines as vaccine adjuvants in relevant animal models.
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Affiliation(s)
- P Lena
- Center for Comparative Medicine, University of California, Davis, CA 95616, USA.
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Pickup RW, Rhodes G, Alamillo ML, Mallinson HE, Thornton SF, Lerner DN. Microbiological analysis of multi-level borehole samples from a contaminated groundwater system. J Contam Hydrol 2001; 53:269-284. [PMID: 11820473 DOI: 10.1016/s0169-7722(01)00169-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A range of bacteriological, geochemical process-related and molecular techniques have been used to assess the microbial biodegradative potential in groundwater contaminated with phenol and other tar acids. The contaminant plume has travelled 500 m from the pollutant source over several decades. Samples were obtained from the plume using a multi-level sampler (MLS) positioned in two boreholes (boreholes 59 and 60) which vertically transected two areas of the plume. Activity of the microbial community, as represented by phenol degradation potential and ability to utilise a range of substrates, was found to be influenced by the plume. Phenol degradation potential appeared to be influenced more by the concentration of the contaminants than the total bacterial cell numbers. However, in the areas of highest phenol concentration, the depression of cell numbers clearly had an effect. The types of bacteria present were assessed by culture and DNA amplification by polymerase chain reaction (PCR). Bacterial groups or processes associated with major geochemical processes, such as methanogenesis, sulphate reduction and denitrification, that have the potential to drive contaminant degradation, were detected at various borehole levels. A comparative molecular analysis of the microbial community between samples obtained from the MLS revealed the microbial community was diverse. The examination of microbial activity complemented those results obtained through chemical analysis, and when combined with hydrological data, showed that MLS samples provided a realistic profile of plume effects and could be related to the potential for natural attenuation of the site.
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Affiliation(s)
- R W Pickup
- NERC-CEH Institute of Freshwater Ecology, Ambleside, Cumbria, UK.
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Abstract
We investigated whether prejudice level influences the size of the other-race effect (poorer recognition of other-race compared with own-race faces). Previous studies, using self-report measures of prejudice, failed to find a relationship between prejudice and the other-race effect. We used an implicit prejudice measure, developed by Fazio, Jackson, Dunton, and Williams (1995), to determine whether implicit prejudice influences the size of the other-race effect. A self-report measure of prejudice, Walker's (1994) Attitudes to Asians Scale, was also included to replicate previous results. A group of 30 high prejudice and 30 low prejudice Caucasian participants, as determined by the self-report measure, were run through a procedure which assesses implicit prejudice and recognition performance at the same time. Neither implicit nor self-reported prejudice level influenced the size of the other-race effect. Unexpectedly, implicit and self-report prejudice influenced (in opposite ways) recognition of own-race faces. The implications of these results for understanding the other-race effect are discussed.
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Affiliation(s)
- D P Ferguson
- The University of Western Australia, Nedlands, Australia
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Abstract
Herpes B virus (Cercopithecine herpesvirus 1) is endemic in captive macaque populations and poses a serious threat to humans who work with macaques or their tissues. A vaccine that could prevent or limit B virus infection in macaques would lessen occupational risk. To that end, a DNA vaccine plasmid expressing the B virus glycoprotein B (gB) was constructed and tested for immunogenicity in mice and macaques. Intramuscular (IM) or intradermal (ID) immunization in mice elicited antibodies to gB that were relatively stable over time and predominately of the IgG2a isotype. Five juvenile macaques were immunized by either IM+ID (n=2) or IM (n=3) routes, with two booster immunizations at 10 and 30 weeks. All five animals developed antibodies to B virus gB, with detectable neutralizing activity in the IM+ID immunized animals. These results demonstrated that DNA immunization can be used to generate an immune response against a B virus glycoprotein in uninfected macaques.
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Affiliation(s)
- J E Loomis-Huff
- Center for Comparative Medicine, School of Medicine, University of California-Davis, 95616, USA
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Rhodes G, Yoshikawa S, Clark A, Lee K, McKay R, Akamatsu S. Attractiveness of facial averageness and symmetry in non-western cultures: in search of biologically based standards of beauty. Perception 2001; 30:611-25. [PMID: 11430245 DOI: 10.1068/p3123] [Citation(s) in RCA: 171] [Impact Index Per Article: 7.4] [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: 10/28/2022]
Abstract
Averageness and symmetry are attractive in Western faces and are good candidates for biologically based standards of beauty. A hallmark of such standards is that they are shared across cultures. We examined whether facial averageness and symmetry are attractive in non-Western cultures. Increasing the averageness of individual faces, by warping those faces towards an averaged composite of the same race and sex, increased the attractiveness of both Chinese (experiment 1) and Japanese (experiment 2) faces, for Chinese and Japanese participants, respectively. Decreasing averageness by moving the faces away from an average shape decreased attractiveness. We also manipulated the symmetry of Japanese faces by blending each original face with its mirror image to create perfectly symmetric versions. Japanese raters preferred the perfectly symmetric versions to the original faces (experiment 2). These findings show that preferences for facial averageness and symmetry are not restricted to Western cultures, consistent with the view that they are biologically based. Interestingly, it made little difference whether averageness was manipulated by using own-race or other-race averaged composites and there was no preference for own-race averaged composites over other-race or mixed-race composites (experiment 1). We discuss the implications of these results for understanding what makes average faces attractive. We also discuss some limitations of our studies, and consider other lines of converging evidence that may help determine whether preferences for average and symmetric faces are biologically based.
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Affiliation(s)
- G Rhodes
- Department of Psychology, University of Western Australia, Nedlands, Perth, WA 6907, Australia.
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Fleeton MN, Chen M, Berglund P, Rhodes G, Parker SE, Murphy M, Atkins GJ, Liljeström P. Self-replicative RNA vaccines elicit protection against influenza A virus, respiratory syncytial virus, and a tickborne encephalitis virus. J Infect Dis 2001; 183:1395-8. [PMID: 11294672 DOI: 10.1086/319857] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2000] [Revised: 01/29/2001] [Indexed: 11/03/2022] Open
Abstract
In genetic vaccination, recipients are immunized with antigen-encoding nucleic acid, usually DNA. This study addressed the possibility of using the recombinant alpha virus RNA molecule, which replicates in the cytoplasm of transfected cells, as a novel approach for genetic vaccination. Mice were immunized with recombinant Semliki Forest virus RNA-encoding envelope proteins from one of 3 viruses: influenza A virus, a tickborne flavivirus (louping ill virus), or respiratory syncytial virus (RSV). Serologic analyses showed that antigen-specific antibody responses were elicited. IgG isotyping indicated that predominantly Th1 type immune responses were induced after immunization with RSV F protein-encoding RNA, which is relevant for protection against RSV infection. Challenge infection showed that RNA immunization had elicited significant levels of protection against the 3 model virus diseases.
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Affiliation(s)
- M N Fleeton
- Microbiology and Tumorbiology Center, Karolinska Institutet, S-171 77 Stockholm, Sweden
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Huys G, Gevers D, Temmerman R, Cnockaert M, Denys R, Rhodes G, Pickup R, McGann P, Hiney M, Smith P, Swings J. Comparison of the antimicrobial tolerance of oxytetracycline-resistant heterotrophic bacteria isolated from hospital sewage and freshwater fishfarm water in Belgium. Syst Appl Microbiol 2001; 24:122-30. [PMID: 11403391 DOI: 10.1078/0723-2020-00008] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/18/2022]
Abstract
The aim of this study was to investigate the relationship between antimicrobial tolerance and taxonomic diversity among the culturable oxytetracycline-resistant (Ot(r)) heterotrophic bacterial population in two Belgian aquatic sites receiving wastewater either from human medicine or from aquaculture. The study of Ot(r) heterotrophs and mesophilic Aeromonas spp. allowed comparison of tolerance data at the intergenus as well as at the intragenus level. In total, 354 independently obtained Ot(r) isolates were subjected to antimicrobial tolerance testing and identified by GLC analysis of their cellular fatty acid methyl esters (FAMEs), by API 20E profiling and/or by Fluorescent Amplified Fragment Length Polymorphism (FAFLP) DNA fingerprinting. In general, Ot(r) hospital heterotrophs displayed a higher frequency (84%) of ampicillin (Amp) tolerance compared to the Ot(r) heterotrophs from the freshwater fishfarm site (22%). FAME results indicated that this effect was linked to the predominance of intrinsically ampicillin-resistant Ot(r) Aeromonas strains over representatives of Acinetobacter and Escherichia coli within the hospital strain set. Among the Ot(r) mesophilic Aeromonas strain set, the global tolerance profiles of the two sites only differed in a higher number of kanamycin (Kan) -tolerant strains (43%) for hospital aeromonads in comparison with the fishfarm aeromonads (8%). To some extent, this finding was correlated with the specific presence of Aeromonas caviae DNA hybridisation group (HG) 4. Collectively, these results suggest that the profiles for Amp and Kan tolerance observed in both sites arose from taxonomic differences in the culturable Ot(r) bacterial population at the generic or subgeneric level. In addition, our identification data also revealed that Enterobacter sp., Stenotrophomonas maltophilia, and A. veronii biovar sobria HG8 may be considered potential indicator organisms to assess microbial tolerance in various compartments of the aquatic environment.
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Affiliation(s)
- G Huys
- Laboratory of Microbiology, University of Gent, Ghent, Belgium.
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Rohatagi S, Gillen M, Aubeneau M, Jan C, Pandit B, Jensen BK, Rhodes G. Effect of age and gender on the pharmacokinetics of ebastine after single and repeated dosing in healthy subjects. Int J Clin Pharmacol Ther 2001; 39:126-34. [PMID: 11396753 DOI: 10.5414/cpp39126] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 11/18/2022] Open
Abstract
OBJECTIVES Ebastine is a potent and selective H1-receptor antagonist indicated for allergic rhinitis which undergoes extensive first pass metabolism by CYP3A4 to form an active metabolite, carebastine. The purpose of the study was to determine age- and gender-related differences in the pharmacokinetics of ebastine and carebastine. METHODS The upper recommended oral dose of 20 mg once daily was administered to 12 healthy young (22 to 38 years) and 12 healthy elderly (50 to 92 years; 8 m and 4 f) subjects for 5 days. Plasma concentrations of ebastine and carebastine were determined for 24 hours following the initial dose on Day 1 and for 72 hours following the dose on Day 5 using a sensitive LC/MS/MS assay. The minimum quantifiable limit (MQL) for the assay was 0.05 ng/ml and 1.0 ng/ml for ebastine and carebastine, respectively. RESULTS Mean area under the curve and Cmax values on Day 1 and Day 5 were similar for ebastine but approximately doubled for carebastine due to its longer half-life. Mean carebastine concentrations were approximately 10 to 20 fold higher than mean ebastine concentrations. For young subjects, the mean (%CV) ebastine t(1/2) was 5.76 (28.47) h and 20.38 (46.19) h on Day 1 and Day 5, respectively. Similarily, for young subjects, the mean (%CV) for carebastine t(1/2) was 7.03 (23.21) h and 26.12 (23.39) h on Day 1 and Day 5, respectively. This apparent prolongation of t(1/2) was probably due to lack of proper estimation of terminal half-life on Day 1 as fewer samples were collected for a shorter duration on Day 1. Using a multicomparison test for Cmin values, it was determined that steady state conditions were achieved by Day 5 for both age groups for ebastine and in young subjects for carebastine. The variability in ebastine pharmacokinetic parameters was higher than carebastine. A 50% increase in ebastine AUC(0-24) and Cmax values in elderly subjects, with no changes in t(1/2), could be explained by either increased absorption of ebastine in elderly subjects or due to a decrease in first pass metabolism. As ebastine shows a high first-pass effect, even a small change in this first pass can cause large changes in plasma exposure. The ebastine pharmacokinetic parameters for elderly subjects in this study lie between the values reported in young subjects in earlier studies. Hence, the apparent age-related pharmacokinetic difference for ebastine is probably due to the inherent variability in ebastine pharmacokinetics. There were no gender-related differences in either young or elderly subjects for mean AUC, Cmax, tmax and t(1/2) ebastine and carebastine values. Ebastine was absorbed rapidly with a median tmax of 1.25 to 2.25 h for both healthy young and elderly males and females on Day 1 and Day 5. There was a delayed appearance of carebastine as expressed by median tmax of 4.0 to 5.0 h, which did not change with age, gender or repeated administration. There were no clinically relevant differences between the groups of subjects with respect to adverse events or safety parameters. CONCLUSIONS Thus, ebastine can be safely administered to elderly subjects with no clinically important age- or gender related differences in the pharmacokinetics of ebastine/carebastine.
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Affiliation(s)
- S Rohatagi
- Department of Drug Metabolism and Pharmacokinetics, Aventis Pharmaceutical, Collegeville, PA, USA
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Abstract
We investigated whether the attractive facial traits of averageness and symmetry signal health, examining two aspects of signalling: whether these traits are perceived as healthy, and whether they provide accurate health information. In Study 1, we used morphing techniques to alter the averageness and symmetry of individual faces. Increases in both traits increased perceived health, and perceived health correlated negatively with rated distinctiveness (a converse measure of averageness) and positively with rated symmetry of the images. In Study 2, we examined whether these traits signal real, as well as perceived, health, in a sample of individuals for whom health scores, based on detailed medical records, were available. Perceived health correlated negatively with distinctiveness and asymmetry, replicating Study 1. Facial distinctiveness ratings of 17-year-olds were associated with poor childhood health in males, and poor current and adolescent health in females, although the last association was only marginally significant. Facial asymmetry of 17-year-olds was not associated with actual health. We discuss the implications of these results for a good genes account of facial preferences.
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Affiliation(s)
- G Rhodes
- Department of Psychology, University of Western Australia, Nedlands, WA 6907, Perth, Australia
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Derendorf H, Lesko LJ, Chaikin P, Colburn WA, Lee P, Miller R, Powell R, Rhodes G, Stanski D, Venitz J. Pharmacokinetic/pharmacodynamic modeling in drug research and development. J Clin Pharmacol 2000; 40:1399-418. [PMID: 11185661] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The two domains in clinical pharmacology dealing with optimizing dosing recommendations are pharmacokinetics and pharmacodynamics. However, the usefulness of these disciplines is limited if viewed in isolation. Pharmacokinetic/pharmacodynamic (PK/PD) relationships and modeling builds the bridge between these two classical disciplines of clinical pharmacology. It links the concentration-time profile as assessed by pharmacokinetics to the intensity of observed response as quantified by pharmacodynamics. Thus, the resulting so-called integrated PK/PD-models allow the description of the complete time course of the desired and/or undesired effects in response to a drug therapy. PK/PD-modeling can elucidate the causative relationship between drug exposure and response and provide a better understanding of the sequence of events that result in the observed drug effect. This information can then be used to streamline the drug development process and dose optimization. This consensus paper presents an update on the current state of PK/PD-modeling from an academic, industrial and regulatory perspective.
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Affiliation(s)
- H Derendorf
- Department of Pharmaceutics, University of Florida, Gainesville 32610-0494, USA
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Huys G, Rhodes G, McGann P, Denys R, Pickup R, Hiney M, Smith P, Swings J. Characterization of oxytetracycline-resistant heterotrophic bacteria originating from hospital and freshwater fishfarm environments in England and Ireland. Syst Appl Microbiol 2000; 23:599-606. [PMID: 11249032 DOI: 10.1016/s0723-2020(00)80036-3] [Citation(s) in RCA: 19] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This ecotaxonomic study compared the antibiotic tolerance among culturable oxytetracyline-resistant (Ot(r)) heterotrophic strains isolated from two aquatic environments representing human activities in health care and aquaculture, namely hospital effluents and freshwater fishfarms. Using a standardized methodology, samples taken in England and Ireland were analyzed to determine the antibiotic tolerance profiles of two groups of culturable Ot(r) bacterial isolates at the intergeneric and intrageneric level comprising heterotrophs (189 strains) and mesophilic Aeromonas spp. (153 strains), respectively. Antibiogram data of heterotrophic isolates revealed that Irish hospital strains comprised higher frequencies of multi-tolerance than those originating from fishfarm environments whereas a reverse correlation was found among the English heterotrophs. Polyphasic identification of the isolates using fatty acid analysis and API 20E profiling showed that this difference arose from the unique taxonomic diversity within each heterotrophic strain set. Acinetobacter (27%) and Brevundimonas (22%) were predominant among the Irish Ot(r) fishfarm isolates, whereas isolates originating from the English aquaculture site almost entirely consisted of Stenotrophomonas maltophilia (86%) exhibiting high frequencies of tolerance to ampicillin and streptomycin. Within both the English and the Irish Ot(r) Aeromonas strain sets, on the other hand, the hospital strain sets displayed higher numbers of multi-tolerant isolates than to fishfarm isolates although country-specific differences were observed for individual antimicrobial agents. The typical occurrence of kanamycin-tolerant aeromonads in the Irish hospital site could to some extent be linked to the typical presence of A. hydrophila DNA hybridization group (HG) 3 strains as determined by fatty acid analysis and fluorescent amplified fragment length polymorphism (FAFLP) fingerprinting. Essentially, these data indicate that tolerance profiles in a specific environment of one country do not necessarily reflect the corresponding tolerance profiles of the same type of environment in another country, and this mainly as a result of the unique taxonomic composition of each site. Ot(r) representatives of Acinetobacter, S. maltophilia, and A. veronii biovar sobria HG8 were common to most if not all of the four sites under study, indicating that these three taxa may serve as potential indicator organisms for monitoring antibiotic tolerance among indigenous bacterial populations in various aquatic environments.
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Affiliation(s)
- G Huys
- Laboratory of Microbiology, University of Ghent, Belgium.
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Abstract
In two experiments, the effect of orientation on face perception was assessed. Using a scale from 1 (normal) to 7 (bizarre), participants rated normal, unaltered faces and faces in which changes had been made to spatial-relational properties (eyes and mouth inverted or relative position of the eyes and mouth altered) or to component properties (eyes whitened and teeth blackened). For unaltered and component-distortion faces, bizarreness ratings increased linearly as orientation increased from 0 degree to 180 degrees. For spatial-distortion faces, a discontinuity in the function relating orientation and bizarreness was in evidence between 90 degrees and 120 degrees. The results provide support for the view that there is a qualitative difference in the processing of upright and inverted faces due to the disproportionate effect of inversion on the encoding of spatial-relational information.
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Affiliation(s)
- J E Murray
- Department of Psychology, University of Otago, Box 56, Dunedin, New Zealand.
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