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Flessa CM, Nasiri-Ansari N, Kyrou I, Leca BM, Lianou M, Chatzigeorgiou A, Kaltsas G, Kassi E, Randeva HS. Genetic and Diet-Induced Animal Models for Non-Alcoholic Fatty Liver Disease (NAFLD) Research. Int J Mol Sci 2022; 23:ijms232415791. [PMID: 36555433 PMCID: PMC9780957 DOI: 10.3390/ijms232415791] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022] Open
Abstract
A rapidly increasing incidence of non-alcoholic fatty liver disease (NAFLD) is noted worldwide due to the adoption of western-type lifestyles and eating habits. This makes the understanding of the molecular mechanisms that drive the pathogenesis of this chronic disease and the development of newly approved treatments of utmost necessity. Animal models are indispensable tools for achieving these ends. Although the ideal mouse model for human NAFLD does not exist yet, several models have arisen with the combination of dietary interventions, genetic manipulations and/or administration of chemical substances. Herein, we present the most common mouse models used in the research of NAFLD, either for the whole disease spectrum or for a particular disease stage (e.g., non-alcoholic steatohepatitis). We also discuss the advantages and disadvantages of each model, along with the challenges facing the researchers who aim to develop and use animal models for translational research in NAFLD. Based on these characteristics and the specific study aims/needs, researchers should select the most appropriate model with caution when translating results from animal to human.
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Affiliation(s)
- Christina-Maria Flessa
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
| | - Narjes Nasiri-Ansari
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Research Institute for Health and Wellbeing, Coventry University, Coventry CV1 5FB, UK
- Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
- Laboratory of Dietetics and Quality of Life, Department of Food Science and Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Bianca M. Leca
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
| | - Maria Lianou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Antonios Chatzigeorgiou
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Gregory Kaltsas
- Endocrine Unit, 1st Department of Propaedeutic Internal Medicine, Laiko Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Eva Kassi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Endocrine Unit, 1st Department of Propaedeutic Internal Medicine, Laiko Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Correspondence: (E.K.); (H.S.R.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Correspondence: (E.K.); (H.S.R.)
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Ericson Lindquist K, Gudinaviciene I, Mylona N, Urdar R, Lianou M, Darai-Ramqvist E, Haglund F, Béndek M, Bardoczi E, Dobra K, Brunnström H. Real-World Diagnostic Accuracy and Use of Immunohistochemical Markers in Lung Cancer Diagnostics. Biomolecules 2021; 11:biom11111721. [PMID: 34827719 PMCID: PMC8615395 DOI: 10.3390/biom11111721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 12/25/2022] Open
Abstract
Objectives: Accurate and reliable diagnostics are crucial as histopathological type influences selection of treatment in lung cancer. The aim of this study was to evaluate real-world accuracy and use of immunohistochemical (IHC) staining in lung cancer diagnostics. Materials and Methods: The diagnosis and used IHC stains for small specimens with lung cancer on follow-up resection were retrospectively investigated for a 15-month period at two major sites in Sweden. Additionally, 10 pathologists individually suggested diagnostic IHC staining for 15 scanned bronchial and lung biopsies and cytological specimens. Results: In 16 (4.7%) of 338 lung cancer cases, a discordant diagnosis of potential clinical relevance was seen between a small specimen and the follow-up resection. In half of the cases, there was a different small specimen from the same investigational work-up with a concordant diagnosis. Diagnostic inaccuracy was often related to a squamous marker not included in the IHC panel (also seen for the scanned cases), the case being a neuroendocrine tumor, thyroid transcription factor-1 (TTF-1) expression in squamous cell carcinomas (with clone SPT24), or poor differentiation. IHC was used in about 95% of cases, with a higher number of stains in biopsies and in squamous cell carcinomas and especially neuroendocrine tumors. Pre-surgical transthoracic samples were more often diagnostic than bronchoscopic ones (72–85% vs. 9–53% for prevalent types). Conclusions: Although a high overall diagnostic accuracy of small specimens was seen, small changes in routine practice (such as consequent inclusion of p40 and TTF-1 clone 8G7G3/1 in the IHC panel for non-small cell cancer with unclear morphology) may lead to improvement, while reducing the number of IHC stains would be preferable from a time and cost perspective.
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Affiliation(s)
- Kajsa Ericson Lindquist
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, SE-221 85 Lund, Sweden; (K.E.L.); (I.G.); (N.M.); (R.U.); (M.L.)
- Division of Pathology, Department of Clinical Sciences, Lund University, SE-221 00 Lund, Sweden
| | - Inga Gudinaviciene
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, SE-221 85 Lund, Sweden; (K.E.L.); (I.G.); (N.M.); (R.U.); (M.L.)
| | - Nektaria Mylona
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, SE-221 85 Lund, Sweden; (K.E.L.); (I.G.); (N.M.); (R.U.); (M.L.)
| | - Rodrigo Urdar
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, SE-221 85 Lund, Sweden; (K.E.L.); (I.G.); (N.M.); (R.U.); (M.L.)
| | - Maria Lianou
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, SE-221 85 Lund, Sweden; (K.E.L.); (I.G.); (N.M.); (R.U.); (M.L.)
| | - Eva Darai-Ramqvist
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Solna, SE-171 76 Stockholm, Sweden; (E.D.-R.); (F.H.)
| | - Felix Haglund
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Solna, SE-171 76 Stockholm, Sweden; (E.D.-R.); (F.H.)
- Department of Oncology-Pathology, Karolinska Institute, SE-171 77 Stockholm, Sweden
| | - Mátyás Béndek
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden; (M.B.); (E.B.); (K.D.)
| | - Erika Bardoczi
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden; (M.B.); (E.B.); (K.D.)
| | - Katalin Dobra
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, SE-141 86 Stockholm, Sweden; (M.B.); (E.B.); (K.D.)
- Division of Laboratory Medicine, Department of Pathology, Karolinska Institute, SE-141 86 Stockholm, Sweden
| | - Hans Brunnström
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, SE-221 85 Lund, Sweden; (K.E.L.); (I.G.); (N.M.); (R.U.); (M.L.)
- Division of Pathology, Department of Clinical Sciences, Lund University, SE-221 00 Lund, Sweden
- Correspondence: ; Tel.: +46-046-4617-3510
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Ericson Lindquist K, Ciornei C, Westbom-Fremer S, Gudinaviciene I, Ehinger A, Mylona N, Urdar R, Lianou M, Svensson F, Seidal T, Haglund F, Dobra K, Béndek M, Bardóczi E, Szablewska A, Witkowski M, Ramnefjell M, De Las Casas LE, Gulyas M, Hegedus A, Micke P, Brunnström H. Difficulties in diagnostics of lung tumours in biopsies: an interpathologist concordance study evaluating the international diagnostic guidelines. J Clin Pathol 2021; 75:302-309. [PMID: 33547095 PMCID: PMC9046746 DOI: 10.1136/jclinpath-2020-207257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/29/2020] [Accepted: 01/20/2021] [Indexed: 12/19/2022]
Abstract
AIMS Accurate and reliable diagnosis is essential for lung cancer treatment. The study aim was to investigate interpathologist diagnostic concordance for pulmonary tumours according to WHO diagnostic criteria. METHODS Fifty-two unselected lung and bronchial biopsies were diagnosed by a thoracic pathologist based on a broad spectrum of immunohistochemical (IHC) stainings, molecular data and clinical/radiological information. Slides stained with H&E, thyroid transcription factor-1 (TTF-1) clone SPT24 and p40 were scanned and provided digitally to 20 pathologists unaware of reference diagnoses. The pathologists independently diagnosed the cases and stated if further diagnostic markers were deemed necessary. RESULTS In 31 (60%) of the cases, ≥80% of the pathologists agreed with each other and with the reference diagnosis. Lower agreement was seen in non-small cell neuroendocrine tumours and in squamous cell carcinoma with diffuse TTF-1 positivity. Agreement with the reference diagnosis ranged from 26 to 45 (50%-87%) for the individual pathologists. The pathologists requested additional IHC staining in 15-44 (29%-85%) of the 52 cases. In nearly half (17 of 36) of the malignant cases, one or more pathologist advocated for a different final diagnosis than the reference without need of additional IHC markers, potentially leading to different clinical treatment. CONCLUSIONS Interpathologist diagnostic agreement is moderate for small unselected bronchial and lung biopsies based on a minimal panel of markers. Neuroendocrine morphology is sometimes missed and TTF-1 clone SPT24 should be interpreted with caution. Our results suggest an intensified education need for thoracic pathologists and a more generous use of diagnostic IHC markers.
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Affiliation(s)
- Kajsa Ericson Lindquist
- Department of Clinical Sciences Lund, Division of Pathology, Lund University, Lund, Sweden.,Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Cristina Ciornei
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Sofia Westbom-Fremer
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden.,Department of Clinical Sciences Lund, Division of Oncology, Lund University, Lund, Sweden
| | - Inga Gudinaviciene
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Anna Ehinger
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden.,Department of Clinical Sciences Lund, Division of Oncology, Lund University, Lund, Sweden
| | - Nektaria Mylona
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Rodrigo Urdar
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Maria Lianou
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Franziska Svensson
- Department of Pathology and Cytology, Halland Hospital Halmstad, Halmstad, Sweden
| | - Tomas Seidal
- Department of Pathology and Cytology, Halland Hospital Halmstad, Halmstad, Sweden
| | - Felix Haglund
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Solna, Stockholm, Sweden.,Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Katalin Dobra
- Department of Pathology, Division of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden.,Department of Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Mátyás Béndek
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Erika Bardóczi
- Department of Clinical Pathology and Cytology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Aneta Szablewska
- Department of Pathology and Cytology, Blekinge Hospital Karlskrona, Karlskrona, Sweden
| | - Marek Witkowski
- Department of Pathology, Kalmar County Hospital, Kalmar, Sweden
| | - Maria Ramnefjell
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - Luis E De Las Casas
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Miklos Gulyas
- Department of Immunology, Genetics and Pathology, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
| | - Agnes Hegedus
- Department of Immunology, Genetics and Pathology, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
| | - Patrick Micke
- Department of Immunology, Genetics and Pathology, Uppsala University and Uppsala University Hospital, Uppsala, Sweden
| | - Hans Brunnström
- Department of Clinical Sciences Lund, Division of Pathology, Lund University, Lund, Sweden .,Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
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Giopanou I, Simoglou D, Lianou M, Stathopoulos G. Nuclear factor ??-signalling drives Malignant Pleural Mesothelioma. Lung Cancer 2018. [DOI: 10.1183/13993003.congress-2018.lsc-1143] [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: 11/05/2022]
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Lamort A, Weiß S, Lillis I, Armenis V, Arendt K, Pepe M, Klotz L, Marazioti A, Spella M, Giopanou I, Ntaliarda G, Giotopoulou G, Lianou M, Oplopoiou M, Kauka K, Jenne D, Stathopoulos G. Tumor-derived granulocyte chemotactic protein 2 cooperates with neutrophil proteinase 3 to drive lung adenocarcinoma. Lung Cancer 2018. [DOI: 10.1183/13993003.congress-2018.lsc-1118] [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: 11/05/2022]
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Ntaliarda G, Lilis I, Papaleonidopoulos V, Giopanou I, Oplopoiou M, Lianou M, Giotopoulou G, Marazioti A, Spella M, Marwitz S, Goldmann T, Bravou V, Stathopoulos G. A requirement for mast cells in lung adenocarcinoma. Lung Cancer 2018. [DOI: 10.1183/13993003.congress-2018.lsc-1144] [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: 11/05/2022]
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Kavouras IG, Lianou M, Chalbot MC, Vei IC, Kotronarou A, Hoek G, Hameri K, Harrison RM. Quantitative determination of regional contributions to fine and coarse particle mass in urban receptor sites. Environ Pollut 2013; 176:1-9. [PMID: 23395988 DOI: 10.1016/j.envpol.2013.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Revised: 12/31/2012] [Accepted: 01/04/2013] [Indexed: 06/01/2023]
Abstract
In this study, we demonstrate that regression analysis of trajectories residence time estimates the contributions of geographical sectors to fine and coarse particle mass in urban receptor sites. We applied the methodology to coarse and fine particles in Amsterdam, Athens, Birmingham and Helsinki. The sectors with the highest contributions on PM2.5 and PM10-2.5 for Amsterdam and Birmingham were Central/Eastern Europe and the Atlantic Ocean/North Sea, respectively. For Athens, the four sectors within 500 km accounted for the largest fraction of PM2.5. The Mediterranean Sea and North Africa added more than half of PM10-2.5 in Athens. For Helsinki, more than 50% of PM2.5 and PM10-2.5 were from sources outside Finland. This approach may be applied to assess the impact of transport on particle mass levels, identify the spatial patterns of particle sources and generate valuable data to design national and transnational efficient emission control strategies.
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Affiliation(s)
- I G Kavouras
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, GR 15236, Greece.
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Gini M, Lianou M, Chalbot MC, Kotronarou A, Kavouras IG, Helmis CG. Quantification of environmental tobacco smoke contribution on outdoor particulate aliphatic and polycyclic aromatic hydrocarbons. Arch Environ Contam Toxicol 2013; 64:347-356. [PMID: 23223937 DOI: 10.1007/s00244-012-9844-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 11/05/2012] [Indexed: 06/01/2023]
Abstract
The objective of this study was to identify and quantify the sources of fine particulate aliphatic and polycyclic aromatic hydrocarbons (PAHs) in an urban area in southeastern Europe. A total of 91 urban PM2.5 samples were analyzed by gas chromatography coupled with mass spectrometry for alkanes and PAHs. Exploratory statistical tools were applied to resolve a decreased number of components based on the variation of measurements. Molecular markers and diagnostic ratios were examined to assign retained components to specific sources. The contributions of the sources were estimated by multivariate linear regression. Sources of aliphatic and PAHs hydrocarbons included primary particles from traffic (3.9 ng/m(3) for alkanes and 240 pg/m(3) for PAHs), evaporative fugitive (4.0 ng/m(3) for alkanes and 93 pg/m(3) for PAHs), and unburnt fuels and oil residues (1.1 ng/m(3) for alkanes and 230 pg/m(3) for PAHs). For the first time, we quantified the contribution of environmental tobacco smoke (ETS), which accounted for 5.2 ng/m(3) of alkanes and 128 pg/m(3) of PAHs. The findings of this study underlined the persistence of ETS and possible exposures to significant quantities of tobacco residues outdoors. Tobacco smoke is known to induce adverse respiratory and cardiovascular illnesses and increased risk for cancer.
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Affiliation(s)
- M Gini
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 11810, Greece
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Lianou M, Chalbot MC, Kavouras IG, Kotronarou A, Karakatsani A, Analytis A, Katsouyanni K, Puustinen A, Hameri K, Vallius M, Pekkanen J, Meddings C, Harrison RM, Ayres JG, ten Brick H, Kos G, Meliefste K, de Hartog J, Hoek G. Temporal variations of atmospheric aerosol in four European urban areas. Environ Sci Pollut Res Int 2011; 18:1202-1212. [PMID: 21373859 DOI: 10.1007/s11356-011-0471-y] [Citation(s) in RCA: 6] [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] [Received: 01/06/2011] [Accepted: 02/09/2011] [Indexed: 05/30/2023]
Abstract
PURPOSE The concentrations of PM(10) mass, PM(2.5) mass and particle number were continuously measured for 18 months in urban background locations across Europe to determine the spatial and temporal variability of particulate matter. METHODS Daily PM(10) and PM(2.5) samples were continuously collected from October 2002 to April 2004 in background areas in Helsinki, Athens, Amsterdam and Birmingham. Particle mass was determined using analytical microbalances with precision of 1 μg. Pre- and post-reflectance measurements were taken using smoke-stain reflectometers. One-minute measurements of particle number were obtained using condensation particle counters. RESULTS The 18-month mean PM(10) and PM(2.5) mass concentrations ranged from 15.4 μg/m(3) in Helsinki to 56.7 μg/m(3) in Athens and from 9.0 μg/m(3) in Helsinki to 25.0 μg/m(3) in Athens, respectively. Particle number concentrations ranged from 10,091 part/cm(3) in Helsinki to 24,180 part/cm(3) in Athens with highest levels being measured in winter. Fine particles accounted for more than 60% of PM(10) with the exception of Athens where PM(2.5) comprised 43% of PM(10). Higher PM mass and number concentrations were measured in winter as compared to summer in all urban areas at a significance level p < 0.05. CONCLUSIONS Significant quantitative and qualitative differences for particle mass across the four urban areas in Europe were observed. These were due to strong local and regional characteristics of particulate pollution sources which contribute to the heterogeneity of health responses. In addition, these findings also bear on the ability of different countries to comply with existing directives and the effectiveness of mitigation policies.
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Affiliation(s)
- Maria Lianou
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, Greece
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Lianou M, Chalbot MC, Kotronarou A, Kavouras IG, Karakatsani A, Katsouyanni K, Puustinnen A, Hameri K, Vallius M, Pekkanen J, Meddings C, Harrison RM, Thomas S, Ayres JG, Brink HT, Kos G, Meliefste K, de Hartog JJ, Hoek G. Dependence of home outdoor particulate mass and number concentrations on residential and traffic features in urban areas. J Air Waste Manag Assoc 2007; 57:1507-1517. [PMID: 18200936 DOI: 10.3155/1047-3289.57.12.1507] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The associations between residential outdoor and ambient particle mass, fine particle absorbance, particle number (PN) concentrations, and residential and traffic determinants were investigated in four European urban areas (Helsinki, Athens, Amsterdam, and Birmingham). A total of 152 nonsmoking participants with respiratory diseases, not exposed to occupational pollution, were included in the study, which comprised a 7-day intensive exposure monitoring period of both indoor and home outdoor particle mass and number concentrations. The same pollutants were also continuously measured at ambient fixed sites centrally located to the studied areas (fixed ambient sites). Relationships between concentrations measured directly outside the homes (residential outdoor) and at the fixed ambient sites were pollutant-specific, with substantial variations among the urban areas. Differences were more pronounced for coarse particles due to resuspension of road dust and PN, which is strongly related to traffic emissions. Less significant outdoor-to-fixed variation for particle mass was observed for Amsterdam and Birmingham, predominantly due to regional secondary aerosol. On the contrary, a strong spatial variation was observed for Athens and to a lesser extent for Helsinki. This was attributed to the overwhelming and time-varied inputs from traffic and other local sources. The location of the residence and traffic volume and distance to street and traffic light were important determinants of residential outdoor particle concentrations. On average, particle mass levels in suburban areas were less than 30% of those measured for residences located in the city center. Residences located less than 10 m from a street experienced 133% higher PN concentrations than residences located further away. Overall, the findings of this multi-city study, indicated that (1) spatial variation was larger for PN than for fine particulate matter (PM) mass and varied between the cities, (2) vehicular emissions in the residential street and location in the center of the city were significant predictors of spatial variation, and (3) the impact of traffic and location in the city was much larger for PN than for fine particle mass.
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Affiliation(s)
- Maria Lianou
- Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, Greece
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Chalkias C, Petrakis M, Psiloglou B, Lianou M. Modelling of light pollution in suburban areas using remotely sensed imagery and GIS. J Environ Manage 2006; 79:57-63. [PMID: 16171928 DOI: 10.1016/j.jenvman.2005.05.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2004] [Revised: 04/09/2005] [Accepted: 05/18/2005] [Indexed: 05/04/2023]
Abstract
This paper describes a methodology for modelling light pollution using geographical information systems (GIS) and remote sensing (RS) technology. The proposed approach attempts to address the issue of environmental assessment in sensitive suburban areas. The modern way of life in developing countries is conductive to environmental degradation in urban and suburban areas. One specific parameter for this degradation is light pollution due to intense artificial night lighting. This paper aims to assess this parameter for the Athens metropolitan area, using modern analytical and data capturing technologies. For this purpose, night-time satellite images and analogue maps have been used in order to create the spatial database of the GIS for the study area. Using GIS advanced analytical functionality, visibility analysis was implemented. The outputs for this analysis are a series of maps reflecting direct and indirect light pollution around the city of Athens. Direct light pollution corresponds to optical contact with artificial night light sources, while indirect light pollution corresponds to optical contact with the sky glow above the city. Additionally, the assessment of light pollution in different periods allows for dynamic evaluation of the phenomenon. The case study demonstrates high levels of light pollution in Athens suburban areas and its increase over the last decade.
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Affiliation(s)
- C Chalkias
- Department of Geography, Harokopio University, El. Venizelou Str., Kalithea, 17671 Athens, Greece.
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