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Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, 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M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D. Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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Boulanger JM, Lindsay MP, Gubitz G, Smith EE, Stotts G, Foley N, Bhogal S, Boyle K, Braun L, Goddard T, Heran MKS, Kanya-Forster N, Lang E, Lavoie P, McClelland M, O’Kelly C, Pageau P, Pettersen J, Purvis H, Shamy M, Tampieri D, vanAdel B, Verbeek R, Blacquiere D, Casaubon L, Ferguson D, Hegedus Y, Jacquin GJ, Kelly M, Kamal N, Linkewich B, Lum C, Mann B, Milot G, Newcommon N, Poirier P, Simpkin W, Snieder E, Trivedi A, Whelan R, Eustace M, Smitko E, Butcher K. Canadian Stroke Best Practice Recommendations for Acute Stroke Management: Prehospital, Emergency Department, and Acute Inpatient Stroke Care, 6th Edition, Update 2018. Int J Stroke 2018; 13:949-984. [DOI: 10.1177/1747493018786616] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The 2018 update of the Canadian Stroke Best Practice Recommendations for Acute Stroke Management, 6th edition, is a comprehensive summary of current evidence-based recommendations, appropriate for use by healthcare providers and system planners caring for persons with very recent symptoms of acute stroke or transient ischemic attack. The recommendations are intended for use by a interdisciplinary team of clinicians across a wide range of settings and highlight key elements involved in prehospital and Emergency Department care, acute treatments for ischemic stroke, and acute inpatient care. The most notable changes included in this 6th edition are the renaming of the module and its integration of the formerly separate modules on prehospital and emergency care and acute inpatient stroke care. The new module, Acute Stroke Management: Prehospital, Emergency Department, and Acute Inpatient Stroke Care is now a single, comprehensive module addressing the most important aspects of acute stroke care delivery. Other notable changes include the removal of two sections related to the emergency management of intracerebral hemorrhage and subarachnoid hemorrhage. These topics are covered in a new, dedicated module, to be released later this year. The most significant recommendation updates are for neuroimaging; the extension of the time window for endovascular thrombectomy treatment out to 24 h; considerations for treating a highly selected group of people with stroke of unknown time of onset; and recommendations for dual antiplatelet therapy for a limited duration after acute minor ischemic stroke and transient ischemic attack. This module also emphasizes the need for increased public and healthcare provider’s recognition of the signs of stroke and immediate actions to take; the important expanding role of paramedics and all emergency medical services personnel; arriving at a stroke-enabled Emergency Department without delay; and launching local healthcare institution code stroke protocols. Revisions have also been made to the recommendations for the triage and assessment of risk of recurrent stroke after transient ischemic attack/minor stroke and suggested urgency levels for investigations and initiation of management strategies. The goal of this updated guideline is to optimize stroke care across Canada, by reducing practice variations and reducing the gap between current knowledge and clinical practice.
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Affiliation(s)
- JM Boulanger
- Charles-LeMoyne Hospital, Neurology, Longueuil, Quebec, Canada
- Université de Sherbrooke, Faculty of Medicine, Sherbrooke, Quebec, Canada
| | - MP Lindsay
- Heart and Stroke Foundation of Canada, Toronto, Ontario, Canada
| | - G Gubitz
- Queen Elizabeth II Health Sciences Center, Halifax, Nova Scotia, Canada
- Department of Medicine (Neurology), Dalhousie University, Halifax, Nova Scotia, Canada
- Canadian Stroke Consortium, Oakville, Ontario, Canada
| | - EE Smith
- Calgary Stroke Program, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - G Stotts
- Canadian Stroke Consortium, Oakville, Ontario, Canada
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - N Foley
- workHORSE Consulting Services, London, Ontario, Canada
| | - S Bhogal
- workHORSE Consulting Services, London, Ontario, Canada
| | - K Boyle
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - L Braun
- Emergency Medical Services, Winnipeg, Manitoba, Canada
| | - T Goddard
- Department of Medicine (Neurology), Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Emergency Medicine, Valley Regional Hospital, Kentville, Nova Scotia, Canada
| | - MKS Heran
- Vancouver General Hospital, Vancouver, British Columbia, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - N Kanya-Forster
- Northern Ontario School of Medicine, Sudbury, Ontario, Canada
- Timmins & District Hospital, Timmins, Ontario, Canada
| | - E Lang
- Department of Emergency Medicine, University of Calgary, Calgary, Alberta, Canada
- Canadian Association of Emergency Physicians, Ottawa, Ontario, Canada
| | - P Lavoie
- Department of Surgery, Laval University, Quebec, Canada
| | - M McClelland
- Interior Health Research Department, Kelowna General Hospital, Kelowna, British Columbia, Canada
| | - C O’Kelly
- Division of Neurosurgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - P Pageau
- Canadian Association of Emergency Physicians, Ottawa, Ontario, Canada
- Department of Emergency Medicine, Ottawa Hospital, Ottawa, Ontario, Canada
| | - J Pettersen
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - H Purvis
- Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | - M Shamy
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - D Tampieri
- Montreal Neurological Hospital and Institute, Montreal, Quebec, Canada
| | - B vanAdel
- Division of Neurology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - R Verbeek
- Canadian Association of Emergency Physicians, Ottawa, Ontario, Canada
- Department of Emergency Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - D Blacquiere
- Canadian Stroke Consortium, Oakville, Ontario, Canada
- Saint John Regional Health Centre, Saint John, New Brunswick, Canada
| | - L Casaubon
- Canadian Stroke Consortium, Oakville, Ontario, Canada
- University Health Network (Toronto Western Hospital) Stroke Program, Toronto, Ontario, Canada
| | - D Ferguson
- Saint John Regional Health Centre, Saint John, New Brunswick, Canada
| | - Y Hegedus
- Vancouver Island Health Authority, Vancouver, British Columbia, Canada
| | - GJ Jacquin
- Centre hospitalier de l’université de Montréal, Montreal, Quebec, Canada
| | - M Kelly
- Division of Neurosurgery, Department of Surgery, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - N Kamal
- Calgary Stroke Program, Calgary, Alberta, Canada
| | - B Linkewich
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - C Lum
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - B Mann
- Alberta Health Services, Edmonton, Alberta, Canada
| | - G Milot
- CHU de Québec, Laval University, Laval, Quebec, Canada
| | - N Newcommon
- Calgary Stroke Program, Calgary, Alberta, Canada
| | - P Poirier
- Paramedic Association of Canada, Ottawa, Ontario, Canada
| | - W Simpkin
- Queen Elizabeth II Health Sciences Center, Halifax, Nova Scotia, Canada
| | - E Snieder
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - A Trivedi
- Section of Neurology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - R Whelan
- University Hospital, Saskatoon, Saskatchewan, Canada
| | - M Eustace
- Health Sciences Centre, St. Johns, Newfoundland, Canada
| | - E Smitko
- Heart and Stroke Foundation of Canada, Toronto, Ontario, Canada
| | - K Butcher
- Division of Neurology, University of Alberta, Edmonton, Alberta, Canada
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Lim CC, Thurston GD, Shamy M, Alghamdi M, Khoder M, Mohorjy AM, Alkhalaf AK, Brocato J, Chen LC, Costa M. Temporal variations of fine and coarse particulate matter sources in Jeddah, Saudi Arabia. J Air Waste Manag Assoc 2018. [PMID: 28635552 PMCID: PMC5752622 DOI: 10.1080/10962247.2017.1344158] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
UNLABELLED This study provides the first comprehensive analysis of the seasonal variations and weekday/weekend differences in fine (aerodynamic diameter <2.5 μm; PM2.5) and coarse (aerodynamic diameter 2.5-10 μm; PM2.5-10) particulate matter mass concentrations, elemental constituents, and potential source origins in Jeddah, Saudi Arabia. Air quality samples were collected over 1 yr, from June 2011 to May 2012 at a frequency of three times per week, and analyzed. The average mass concentrations of PM2.5 (21.9 μg/m3) and PM10 (107.8 μg/m3) during the sampling period exceeded the recommended annual average levels by the World Health Organization (WHO) for PM2.5 (10 μg/m3) and PM10 (20 μg/m3), respectively. Similar to other Middle Eastern locales, PM2.5-10 is the prevailing mass component of atmospheric particulate matter at Jeddah, accounting for approximately 80% of the PM10 mass. Considerations of enrichment factors, absolute principal component analysis (APCA), concentration roses, and backward trajectories identified the following source categories for both PM2.5 and PM2.5-10: (1) soil/road dust, (2) incineration, and (3) traffic; and for PM2.5 only, (4) residual oil burning. Soil/road dust accounted for a major portion of both the PM2.5 (27%) and PM2.5-10 (77%) mass, and the largest source contributor for PM2.5 was from residual oil burning (63%). Temporal variations of PM2.5-10 and PM2.5 were observed, with the elevated concentration levels observed for mass during the spring (due to increased dust storm frequency) and on weekdays (due to increased traffic). The predominant role of windblown soil and road dust in both the PM2.5 and PM2.5-10 masses in this city may have implications regarding the toxicity of these particles versus those in the Western world where most PM health assessments have been made in the past. These results support the need for region-specific epidemiological investigations to be conducted and considered in future PM standard setting. IMPLICATIONS Temporal variations of fine and coarse PM mass, elemental constituents, and sources were examined in Jeddah, Saudi Arabia, for the first time. The main source of PM2.5-10 is natural windblown soil and road dust, whereas the predominant source of PM2.5 is residual oil burning, generated from the port and oil refinery located west of the air sampler, suggesting that targeted emission controls could significantly improve the air quality in the city. The compositional differences point to a need for health effect studies to be conducted in this region, so as to directly assess the applicability of the existing guidelines to the Middle East air pollution.
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Affiliation(s)
- Chris C. Lim
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - George D. Thurston
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdullah M. Mohorjy
- Department of Civil Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdulrahman K. Alkhalaf
- Department of Meteorology, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jason Brocato
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Lung Chi Chen
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Max Costa
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA
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Campbell BCV, van Zwam WH, Goyal M, Menon BK, Dippel DWJ, Demchuk AM, Bracard S, White P, Dávalos A, Majoie CBLM, van der Lugt A, Ford GA, de la Ossa NP, Kelly M, Bourcier R, Donnan GA, Roos YBWEM, Bang OY, Nogueira RG, Devlin TG, van den Berg LA, Clarençon F, Burns P, Carpenter J, Berkhemer OA, Yavagal DR, Pereira VM, Ducrocq X, Dixit A, Quesada H, Epstein J, Davis SM, Jansen O, Rubiera M, Urra X, Micard E, Lingsma HF, Naggara O, Brown S, Guillemin F, Muir KW, van Oostenbrugge RJ, Saver JL, Jovin TG, Hill MD, Mitchell PJ, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Wakhloo A, Moonis M, Henninger N, Goddeau R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Majoie CB, Tunguturi A, Onteddu S, Carandang R, Howk M, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Dippel DW, Meler P, Huerga E, Gelabert S, Coscojuela P, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Brown MM, Rovira A, Molina CA, Millán M, Muñoz L, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, Liebig T, García Bermejo P, Remollo S, Castaño C, García-Sort R, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Stijnen T, Dávalos A, Chamorro A, Urra X, Obach V, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Andersson T, Ariño H, Aceituno A, Rudilosso S, Renu A, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Mattle H, Quesada H, Rubio F, Cano L, Lara B, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Wahlgren N, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, van der Heijden E, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Ghannouti N, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Fleitour N, Mutlu G, Rosso C, Szatmary Z, Yger M, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Hooijenga I, Leautaud A, Renkes C, Serre I, Desal H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Puppels C, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Pellikaan W, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Geerling A, Birchenall J, Bodiguel E, Calvet D, Domigo V, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Lindl-Velema A, Trystram D, Turc G, Berge J, Sibon I, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, van Vemde G, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, de Ridder A, Bejot Y, Chavent A, Gentil A, Kazemi A, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Greebe P, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, de Bont-Stikkelbroeck J, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, de Meris J, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Salaris Silvio F, 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S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Shabbaj II, Alghamdi MA, Shamy M, Hassan SK, Alsharif MM, Khoder MI. Risk Assessment and Implication of Human Exposure to Road Dust Heavy Metals in Jeddah, Saudi Arabia. Int J Environ Res Public Health 2017; 15:E36. [PMID: 29278373 PMCID: PMC5799873 DOI: 10.3390/ijerph15010036] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/11/2017] [Accepted: 12/13/2017] [Indexed: 12/07/2022]
Abstract
Data dealing with the assessment of heavy metal pollution in road dusts in Jeddah, Saudi Arabia and its implication to human health risk of human exposure to heavy metals, are scarce. Road dusts were collected from five different functional areas (traffic areas (TA), parking areas (PA), residential areas (RA), mixed residential commercial areas (MCRA) and suburban areas (SA)) in Jeddah and one in a rural area (RUA) in Hada Al Sham. We aimed to measure the pollution levels of heavy metals and estimate their health risk of human exposure applying risk assessment models described by United States Environmental Protection Agency (USEPA). Using geo-accumulation index (Igeo), the pollution level of heavy metals in urban road dusts was in the following order Cd > As > Pb > Zn > Cu > Ni > Cr > V > Mn > Co > Fe. Urban road dust was found to be moderately to heavily contaminated with As, Pb and Zn, and heavily to extremely contaminated with Cd. Calculation of enrichment factor (EF) revealed that heavy metals in TA had the highest values compared to that of the other functional areas. Cd, As, Pb, Zn and Cu were severely enriched, while Mn, V, Co, Ni and Cr were moderately enriched. Fe was considered as a natural element and consequently excluded. The concentrations of heavy metals in road dusts of functional areas were in the following order: TA > PA > MCRA > SA > RA > RUA. The study revealed that both children and adults in all studied areas having health quotient (HQ) < 1 are at negligible non-carcinogenic risk. The only exception was for children exposed to As in TA. They had an ingestion health quotient (HQing) 1.18 and a health index (HI) 1.19. The most prominent exposure route was ingestion. The cancer risk for children and adults from exposure to Pb, Cd, Co, Ni, and Cr was found to be negligible (≤1 × 10-6).
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Affiliation(s)
- Ibrahim I Shabbaj
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
| | - Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
| | - Salwa K Hassan
- Air Pollution Department, National Research Centre, El Behooth Str., 12622 Dokki, Giza , Egypt.
| | - Musaab M Alsharif
- Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Mamdouh I Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
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Ali N, Ismail IMI, Khoder M, Shamy M, Alghamdi M, Al Khalaf A, Costa M. Polycyclic aromatic hydrocarbons (PAHs) in the settled dust of automobile workshops, health and carcinogenic risk evaluation. Sci Total Environ 2017; 601-602:478-484. [PMID: 28575826 DOI: 10.1016/j.scitotenv.2017.05.110] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 01/10/2017] [Revised: 04/18/2017] [Accepted: 05/13/2017] [Indexed: 06/07/2023]
Abstract
UNLABELLED There are studies available on the occurrence of PAHs in indoor settled dust from residential and different occupational settings in literature but limited data is available on their occurrence and potential health risk assessment in automobile workshops. In recent decades Saudi Arabia has experienced tremendous growth in the petroleum industry and as a result, the automobile industry is booming. People working in automobile workshops are at a greater risk of exposure to chemicals releasing from the petroleum products. The main objective of this study was to report PAHs in settled dust from different automobile workshops of Jeddah, Saudi Arabia, and evaluate health risk for workers through dust exposure. Pyrene (1585-13500ng/g), Benz[a]anthracene (<LOQ-5065ng/g), and Phenanthrene (280-4860ng/g) were the major PAHs and ∑12PAHs concentrations ranged between 7620 and 30800ng/g. Profile of PAHs was different in dust from small and heavy vehicle workshops. For workers, health risk assessment was calculated based on benzo[a]pyrene equivalent carcinogenic power (BaPE), incremental lifetime cancer risk (ILCR), and daily exposure to PAHs via dust ingestion. The median concentration of BaPE was 285ng/g, ILCR was up to 6.78×10-3 (exceeded reference values of USEPA (range between 1×10-6 and 1×10-4)), and worker's exposure via dust ingestion on daily bases reached up to 33ng/kgbw/day for ∑12PAHs. This study showed people working in automobile workshops in the studied area are getting expose to high levels of PAHs via dust ingestion, inhalation, and dermal contact. CAPSULE This is the first study reporting PAHs in automobile workshops settings from Middle East. The incremental lifetime cancer risk to workers via dust exposure exceeded set limits of USEPA.
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Affiliation(s)
- Nadeem Ali
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Iqbal Mohammad Ibrahim Ismail
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh Khoder
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdulrahman Al Khalaf
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
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Harrison RM, Bousiotis D, Mohorjy AM, Alkhalaf AK, Shamy M, Alghamdi M, Khoder M, Costa M. Health risk associated with airborne particulate matter and its components in Jeddah, Saudi Arabia. Sci Total Environ 2017; 590-591:531-539. [PMID: 28285859 DOI: 10.1016/j.scitotenv.2017.02.216] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 01/18/2017] [Revised: 02/23/2017] [Accepted: 02/27/2017] [Indexed: 06/06/2023]
Abstract
Samples of PM2.5 and PM10 have been collected in all of four seasons at seven sites within the city of Jeddah, Saudi Arabia. The samples have been analysed for a range of trace elements. There is a large loading of wind-blown dust and the majority of elements are predominantly associated with coarse particles. Enrichment factors, however, show that some elements are markedly enriched above crustal abundance. Using mean data for the PM2.5 and PM10 fractions from each of the seven sampling sites, health risks have been estimated for particulate matter mass, the elements Cr, Mn, Ni, Pb, As, Cd and V measured in this study, and polycyclic aromatic hydrocarbons using data from an earlier study within Jeddah. Cancer risks are calculated from mean airborne concentrations and cancer slope factors for the carcinogenic metals and PAH, but the cancer risks are relatively modest compared to the lifetime risk of mortality due to PM2.5 exposure. The risks associated with exposure to V and Mn are considered to be small, while concentrations of cadmium far exceed the European Union Limit Value and World Health Organisation guideline. Cadmium shows a very high crustal enrichment factor but is present predominantly in the coarse particle fraction suggesting that local soils and surface dusts are unusually enriched in Cd relative to the global average. Using national data for mortality rates, the excess mortality due to PM2.5 exposure has been calculated and amounts to over 1100 deaths annually for the city of Jeddah.
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Affiliation(s)
- Roy M Harrison
- Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Dimitrios Bousiotis
- Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - A M Mohorjy
- Department of Civil Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - A K Alkhalaf
- Department of Meteorology, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - M Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - M Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Costa
- Department of Environmental Medicine, New York University School of Medicine, New York, NY, USA.
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Abu-Elmagd M, Alghamdi MA, Shamy M, Khoder MI, Costa M, Assidi M, Kadam R, Alsehli H, Gari M, Pushparaj PN, Kalamegam G, Al-Qahtani MH. Evaluation of the Effects of Airborne Particulate Matter on Bone Marrow-Mesenchymal Stem Cells (BM-MSCs): Cellular, Molecular and Systems Biological Approaches. Int J Environ Res Public Health 2017; 14:ijerph14040440. [PMID: 28425934 PMCID: PMC5409640 DOI: 10.3390/ijerph14040440] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 04/07/2017] [Accepted: 04/14/2017] [Indexed: 12/13/2022]
Abstract
Particulate matter (PM) contains heavy metals that affect various cellular functions and gene expression associated with a range of acute and chronic diseases in humans. However, the specific effects they exert on the stem cells remain unclear. Here, we report the effects of PM collected from the city of Jeddah on proliferation, cell death, related gene expression and systems of biological analysis in bone marrow mesenchymal stem cells (BM-MSCs), with the aim of understanding the underlying mechanisms. PM2.5 and PM10 were tested in vitro at various concentrations (15 to 300 µg/mL) and durations (24 to 72 h). PMs induced cellular stress including membrane damage, shrinkage and death. Lower concentrations of PM2.5 increased proliferation of BM-MSCs, while higher concentrations served to decrease it. PM10 decreased BM-MSCs proliferation in a concentration-dependent manner. The X-ray fluorescence spectrometric analysis showed that PM contains high levels of heavy metals. Ingenuity Pathway Analysis (IPA) and hierarchical clustering analyses demonstrated that heavy metals were associated with signaling pathways involving cell stress/death, cancer and chronic diseases. qRT-PCR results showed differential expression of the apoptosis genes (BCL2, BAX); inflammation associated genes (TNF-α and IL-6) and the cell cycle regulation gene (p53). We conclude that PM causes inflammation and cell death, and thereby predisposes to chronic debilitating diseases.
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Affiliation(s)
- Muhammad Abu-Elmagd
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
| | - Mamdouh I Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia.
| | - Max Costa
- New York University School of Medicine, Nelson Institute of Environmental Medicine, New York, NY 10987, USA.
| | - Mourad Assidi
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Roaa Kadam
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Haneen Alsehli
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Mamdooh Gari
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Peter Natesan Pushparaj
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Gauthaman Kalamegam
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Mohammed H Al-Qahtani
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
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Ali N, Ismail IMI, Khoder M, Shamy M, Alghamdi M, Costa M, Ali LN, Wang W, Eqani SAMAS. Polycyclic aromatic hydrocarbons (PAHs) in indoor dust samples from Cities of Jeddah and Kuwait: Levels, sources and non-dietary human exposure. Sci Total Environ 2016; 573:1607-1614. [PMID: 27678047 DOI: 10.1016/j.scitotenv.2016.09.134] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [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: 04/27/2016] [Revised: 08/17/2016] [Accepted: 09/16/2016] [Indexed: 05/04/2023]
Abstract
This study reports levels and profiles of polycyclic aromatic hydrocarbons (PAHs) in dust samples collected from three different microenvironments (cars, air conditioner (AC) filters and household floor dust) of Jeddah, Saudi Arabia (KSA) and Kuwait. To the best of our knowledge, this is first study reporting PAHs in indoor microenvironments of KSA, which makes these findings important. Benzo(b)fluoranthene (BbF), benzo(a)pyrene (BaP), phenanthrene (Phe), and pyrene (Pyr) were found to be the major chemicals in dust samples from all selected microenvironments. ΣPAHs occurred at median concentrations (ng/g) of 3450, 2200, and 2650 in Saudi AC filter, car and household floor dust, respectively. The median levels (ng/g) of ΣPAHs in Kuwaiti car (950) and household floor (1675) dust samples were lower than Saudi dust. The PAHs profile in Saudi dust was dominated by high molecular weight (HMW) (4-5 ring) PAHs while in Kuwaiti dust 3 ring PAHs have marked contribution. BaP equivalent, a marker for carcinogenic PAHs, was high in Saudi household floor and AC filter dust with median levels (ng/g) of 370 and 455, respectively. Different exposure scenarios, using 5th percentile, median, mean, and 95th percentile levels, were estimated for adults and toddlers. For Saudi and Kuwaiti toddlers worst exposure scenario of ΣPAHs was calculated at 175 and 85ng/kg body weight/day (ng/kgbw/d), respectively. For Saudi toddlers, the calculated worst exposure scenarios for carcinogenic BaP (27.7) and BbF (29.3ng/kgbw/d) was 2-4 times higher than Kuwaiti toddlers. This study is based on small number of samples which necessitate more detailed studies for better understanding of dynamics of PAHs in the indoor environments of this region. Nevertheless, our finding supports the ongoing exposure of organic pollutants to population that accumulates indoor.
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Affiliation(s)
- Nadeem Ali
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Iqbal Mohammad Ibrahim Ismail
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Chemistry, Faculty of Science, King Abdulaziz University, Saudi Arabia
| | - Mamdouh Khoder
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Lulwa Naseer Ali
- Environmental Sciences Department, Kuwait Institute for Scientific Research, Kuwait
| | - Wei Wang
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
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Shay JW, Homma N, Zhou R, Naseer MI, Chaudhary AG, Al-Qahtani M, Hirokawa N, Goudarzi M, Fornace AJ, Baeesa S, Hussain D, Bangash M, Alghamdi F, Schulten HJ, Carracedo A, Khan I, Qashqari H, Madkhali N, Saka M, Saini KS, Jamal A, Al-Maghrabi J, Abuzenadah A, Chaudhary A, Al Qahtani M, Damanhouri G, Alkhatabi H, Goodeve A, Crookes L, Niksic N, Beauchamp N, Abuzenadah AM, Vaught J, Budowle B, Assidi M, Buhmeida A, Al-Maghrabi J, Buhmeida A, Assidi M, Merdad L, Kumar S, Miura S, Gomez K, Carracedo A, Rasool M, Rebai A, Karim S, Eldin HFN, Abusamra H, Alhathli EM, Salem N, Al-Qahtani MH, Kumar S, Faheem H, Agarwa A, Nieschlag E, Wistuba J, Damm OS, Beg MA, Abdel-Meguid TA, Mosli HA, Bajouh OS, Abuzenadah AM, Al-Qahtani MH, Coskun S, Abu-Elmagd M, Buhmeida A, Dallol A, Al-Maghrabi J, Hakamy S, Al-Qahtani W, Al-Harbi A, Hussain S, Assidi M, Al-Qahtani M, Abuzenadah A, Ozkosem B, DuBois R, Messaoudi SS, Dandana MT, Mahjoub T, Almawi WY, Abdalla S, Al-Aama MN, Elzawahry A, Takahashi T, Mimaki S, Furukawa E, Nakatsuka R, Kurosaka I, Nishigaki T, Nakamura H, Serada S, Naka T, Hirota S, Shibata T, Tsuchihara K, Nishida T, Kato M, Mehmood S, Nazam N, Lone MI, Ahmad W, Ansari SA, Alqahtani MH, Ashraf NM, Asif A, Bilal M, Mehmood MS, Hussain A, Jamal QMS, Siddiqui MU, Alzohairy MA, Al Karaawi MA, Nedjadi T, Al-Maghrabi J, Assidi M, Al-Khattabi H, Al-Ammari A, Al-Sayyad A, Buhmeida A, Al-Qahtani M, Zitouni H, Raguema N, Ali MB, Malah W, Lfalah R, Almawi W, Mahjoub T, Elanbari M, Ptitsyn A, Mahjoub S, El Ghali R, Achour B, Amor NB, Assidi M, N’siri B, Morjani H, Nedjadi T, Al-Ammari A, Al-Sayyad A, Salem N, Azhar E, Al-Maghrabi J, Chayeb V, Dendena M, Zitouni H, Zouari-Limayem K, Mahjoub T, Refaat B, Ashshi AM, Batwa SA, Ramadan H, Awad A, Ateya A, El-Shemi AGA, Ashshi A, Basalamah M, Na Y, Yun CO, El-Shemi AGA, Ashshi A, Basalamah M, Na Y, Yun CO, El-Shemi AG, Refaat B, Kensara O, Abdelfattah A, Dheeb BI, Al-Halbosiy MMF, Al lihabi RK, Khashman BM, Laiche D, Adeel C, Taoufik N, Al-Afghani H, Łastowska M, Al-Balool HH, Sheth H, Mercer E, Coxhead JM, Redfern CPF, Peters H, Burt AD, Santibanez-Koref M, Bacon CM, Chesler L, Rust AG, Adams DJ, Williamson D, Clifford SC, Jackson MS, Singh M, Mansuri MS, Jadeja SD, Patel H, Marfatia YS, Begum R, Mohamed AM, Kamel AK, Helmy NA, Hammad SA, Kayed HF, Shehab MI, El Gerzawy A, Ead MM, Ead OM, Mekkawy M, Mazen I, El-Ruby M, Shahid SMA, Jamal QMS, Arif JM, Lohani M, Imen M, Leila C, Houyem O, Kais D, Fethi CDM, Mohamed B, Salem A, Faggad A, Gebreslasie AT, Zaki HY, Abdalla BE, AlShammari MS, Al-Ali R, Al-Balawi N, Al-Enazi M, Al-Muraikhi A, Busaleh F, Al-Sahwan A, Borgio F, Sayyed A, Al-Ali A, Acharya S, Zaki MS, El-Bassyouni HT, Shehab MI, Elshal MF, M. K, Aldahlawi AM, Saadah O, McCoy JP, El-Tarras AE, Awad NS, Alharthi AA, Ibrahim MMM, Alsehli HS, Dallol A, Gari AM, Abbas MM, Kadam RA, Gari MM, Alkaff MH, Abuzenadah AM, Gari MA, Abusamra H, Karim S, eldin HFN, Alhathli EM, Salem N, Kumar S, Al-Qahtani MH, Moradi FA, Rashidi OM, Awan ZA, Kaya IH, Al-Harazi O, Colak D, Alkousi NA, Athanasopoulos T, Bahmaid AO, Alhwait EA, Gari MA, Alsehli HS, Abbas MM, Alkaf MH, Kadam R, Dallol A, Kalamegam G, Eldin HFN, Karim S, Abusamra H, Alhathli E, Salem N, Al-Qahtani MH, Kumar S, Alsayed SN, Aljohani FH, Habeeb SM, Almashali RA, Basit S, Ahmed SM, Sharma R, Agarwal A, Durairajanayagam D, Samanta L, Abu-Elmagd M, Abuzenadah AM, Sabanegh ES, Assidi M, Al-Qahtani M, Agarwal A, Sharma R, Samanta L, Durairajanayagam D, Assidi M, Abu-Elmagd M, Al-Qahtani M, Abuzenadah AM, Sabanegh ES, Samanta L, Agarwal A, Sharma R, Cui Z, Assidi M, Abuzenadah AM, Abu-Elmagd M, Al-Qahtani M, Alboogmi AA, Alansari NA, Al-Quaiti MM, Ashgan FT, Bandah A, Jamal HS, Rozi A, Mirza Z, Abuzenadah AM, Karim S, Al-Qahtani MH, Karim S, Schulten HJ, Al Sayyad AJ, Farsi HMA, Al-Maghrabi JA, Mirza Z, Alotibi R, Al-Ahmadi A, Alansari NA, Albogmi AA, Al-Quaiti MM, Ashgan FT, Bandah A, Al-Qahtani MH, Ebiya RA, Darwish SM, Montaser MM, Abusamra H, Bajic VB, Al-Maghrabi J, Gomaa W, Hanbazazh M, Al-Ahwal M, Al-Harbi A, Al-Qahtani W, Hakamy S, Baba G, Buhmeida A, Al-Qahtani M, Al-Maghrabi J, Al-Harbi A, Al-Ahwal M, Al-Harbi A, Al-Qahtani W, Hakamy S, Baba G, Buhmeida A, Al-Qahtani M, Alhathli EM, Karim S, Salem N, Eldin HN, Abusamra H, Kumar S, Al-Qahtani MH, Alyamani AA, Kalamegam G, Alhwait EA, Gari MA, Abbas MM, Alkaf MH, Alsehli HS, Kadam RA, Al-Qahtani M, Gadi R, Buhmeida A, Assidi M, Chaudhary A, Merdad L, Alfakeeh SM, Alhwait EA, Gari MA, Abbas MM, Alkaf MH, Alsehli HS, Kadam R, Kalamegam G, Ghazala R, Mathew S, Hamed MH, Assidi M, Al-Qahtani M, Qadri I, Mathew S, Mira L, Shaabad M, Hussain S, Assidi M, Abu-Elmagd M, Al-Qahtani M, Mathew S, Shaabad M, Mira L, Hussain S, Assidi M, Abu-Elmagd M, Al-Qahtani M, Rebai A, Assidi M, Buhmeida A, Abu-Elmagd M, Dallol A, Shay JW, Almutairi MH, Ambers A, Churchill J, King J, Stoljarova M, Gill-King H, Assidi M, Abu-Elmagd M, Buhmeida A, Al-Qatani M, Budowle B, Abu-Elmagd M, Ahmed F, Dallol A, Assidi M, Almagd TA, Hakamy S, Agarwal A, Al-Qahtani M, Abuzenadah A, Karim S, Schulten HJ, Al Sayyad AJ, Farsi HMA, Al-Maghrabi JA, Buhmaida A, Mirza Z, Alotibi R, Al-Ahmadi A, Alansari NA, Albogmi AA, Al-Quaiti MM, Ashgan FT, Bandah A, Al-Qahtani MH, Satar R, Rasool M, Ahmad W, Nazam N, Lone MI, Naseer MI, Jamal MS, Zaidi SK, Pushparaj PN, Jafri MA, Ansari SA, Alqahtani MH, Bashier H, Al Qahtani A, Mathew S, Nour AM, Alkhatabi H, Zenadah AMA, Buhmeida A, Assidi M, Al Qahtani M, Faheem M, Mathew S, Mathew S, Pushparaj PN, Al-Qahtani MH, Alhadrami HA, Dallol A, Abuzenadah A, Hussein IR, Chaudhary AG, Bader RS, Bassiouni R, Alquaiti M, Ashgan F, Schulten H, Alama MN, Al Qahtani MH, Lone MI, Nizam N, Ahmad W, Jafri MA, Rasool M, Ansari SA, Al-Qahtani MH, Alshihri E, Abu-Elmagd M, Alharbi L, Assidi M, Al-Qahtani M, Mathew S, Natesan PP, Al Qahtani M, Kalamegam G, Pushparaj PN, Khan F, Kadam R, Ahmed F, Assidi M, Sait KHW, Anfinan N, Al Qahtani M, Naseer MI, Chaudhary AG, Jamal MS, Mathew S, Mira LS, Pushparaj PN, Ansari SA, Rasool M, AlQahtani MH, Naseer MI, Chaudhary AG, Mathew S, Mira LS, Jamal MS, Sogaty S, Bassiouni RI, Rasool M, AlQahtani MH, Rasool M, Ansari SA, Jamal MS, Pushparaj PN, Sibiani AMS, Ahmad W, Buhmeida A, Jafri MA, Warsi MK, Naseer MI, Al-Qahtani MH, Rubi, Kumar K, Naqvi AAT, Ahmad F, Hassan MI, Jamal MS, Rasool M, AlQahtani MH, Ali A, Jarullah J, Rasool M, Buhmeida A, Khan S, Abdussami G, Mahfooz M, Kamal MA, Damanhouri GA, Jamal MS, Jarullah B, Jarullah J, Jarullah MSS, Ali A, Rasool M, Jamal MS, Assidi M, Abu-Elmagd M, Bajouh O, Pushparaj PN, Al-Qahtani M, Abuzenadah A, Jamal MS, Jarullah J, Mathkoor AEA, Alsalmi HMA, Oun AMM, Damanhauri GA, Rasool M, AlQahtani MH, Naseer MI, Rasool M, Sogaty S, Chudhary AG, Abutalib YA, Merico D, Walker S, Marshall CR, Zarrei M, Scherer SW, Al-Qahtani MH, Naseer MI, Faheem M, Chaudhary AG, Rasool M, Kalamegam G, Ashgan FT, Assidi M, Ahmed F, Zaidi SK, Jan MM, Al-Qahtani MH, Al-Zahrani M, Lary S, Hakamy S, Dallol A, Al-Ahwal M, Al-Maghrabi J, Dermitzakis E, Abuzenadah A, Buhmeida A, Al-Qahtani M, Al-refai AA, Saleh M, Yassien RI, Kamel M, Habeb RM, Filimban N, Dallol A, Ghannam N, Al-Qahtani M, Abuzenadah AM, Bibi F, Akhtar S, Azhar EI, Yasir M, Nasser MI, Jiman-Fatani AA, Sawan A, Lahzah RA, Ali A, Hassan SA, Hasnain SE, Tayubi IA, Abujabal HA, Magrabi AO, Khan F, Kalamegam G, Pushparaj PN, Abuzenada A, Kumosani TA, Barbour E, Al-Qahtani M, Shabaad M, Mathew S, Dallol A, Merdad A, Buhmeida A, Al-Qahtani M, Assidi M, Abu-Elmagd M, Gauthaman K, Gari M, Chaudhary A, Abuzenadah A, Pushparaj PN, Al-Qahtani M, Hassan SA, Tayubi IA, Aljahdali HMA, Al Nono R, Gari M, Alsehli H, Ahmed F, Abbas M, Kalamegam G, Al-Qahtani M, Mathew S, Khan F, Rasool M, Jamal MS, Naseer MI, Mirza Z, Karim S, Ansari S, Assidi M, Kalamegam G, Gari M, Chaudhary A, Abuzenadah A, Pushparaj PN, Al-Qahtani M, Abu-Elmagd M, Kalamegam G, Kadam R, Alghamdi MA, Shamy M, Costa M, Khoder MI, Assidi M, Pushparaj PN, Gari M, Al-Qahtani M, Kharrat N, Belmabrouk S, Abdelhedi R, Benmarzoug R, Assidi M, Al Qahtani MH, Rebai A, Dhamanhouri G, Pushparaj PN, Noorwali A, Alwasiyah MK, Bahamaid A, Alfakeeh S, Alyamani A, Alsehli H, Abbas M, Gari M, Mobasheri A, Kalamegam G, Al-Qahtani M, Faheem M, Mathew S, Pushparaj PN, Al-Qahtani MH, Mathew S, Faheem M, Mathew S, Pushparaj PN, Al-Qahtani MH, Jamal MS, Zaidi SK, Khan R, Bhatia K, Al-Qahtani MH, Ahmad S, AslamTayubi I, Tripathi M, Hassan SA, Shrivastava R, Tayubi IA, Hassan S, Abujabal HAS, Shah I, Jarullah B, Jamal MS, Jarullah J, Sheikh IA, Ahmad E, Jamal MS, Rehan M, Abu-Elmagd M, Tayubi IA, AlBasri SF, Bajouh OS, Turki RF, Abuzenadah AM, Damanhouri GA, Beg MA, Al-Qahtani M, Hammoudah SAF, AlHarbi KM, El-Attar LM, Darwish AMZ, Ibrahim SM, Dallol A, Choudhry H, Abuzenadah A, Awlia J, Chaudhary A, Ahmed F, Al-Qahtani M, Jafri MA, Abu-Elmagd M, Assidi M, Al-Qahtani M, khan I, Yasir M, Azhar EI, Al-basri S, Barbour E, Kumosani T, Khan F, Kalamegam G, Pushparaj PN, Abuzenada A, Kumosani TA, Barbour E, EL Sayed HM, Hafez EA, Schulten HJ, Elaimi AH, Hussein IR, Bassiouni RI, Alwasiyah MK, Wintle RF, Chaudhary A, Scherer SW, Al-Qahtani M, Mirza Z, Pillai VG, Karim S, Sharma S, Kaur P, Srinivasan A, Singh TP, Al-Qahtani M, Alotibi R, Al-Ahmadi A, Al-Adwani F, Hussein D, Karim S, Al-Sharif M, Jamal A, Al-Ghamdi F, Al-Maghrabi J, Baeesa SS, Bangash M, Chaudhary A, Schulten HJ, Al-Qahtani M, Faheem M, Pushparaj PN, Mathew S, Kumosani TA, Kalamegam G, Al-Qahtani M, Al-Allaf FA, Abduljaleel Z, Alashwal A, Taher MM, Bouazzaoui A, Abalkhail H, Ba-Hammam FA, Athar M, Kalamegam G, Pushparaj PN, Abu-Elmagd M, Ahmed F, Sait KH, Anfinan N, Gari M, Chaudhary A, Abuzenadah A, Assidi M, Al-Qahtani M, Mami NB, Haffani YZ, Medhioub M, Hamzaoui L, Cherif A, Azouz M, Kalamegam G, Khan F, Mathew S, Nasser MI, Rasool M, Ahmed F, Pushparaj PN, Al-Qahtani M, Turkistany SA, Al-harbi LM, Dallol A, Sabir J, Chaudhary A, Abuzenadah A, Al-Madoudi B, Al-Aslani B, Al-Harbi K, Al-Jahdali R, Qudaih H, Al Hamzy E, Assidi M, Al Qahtani M, Ilyas AM, Ahmed Y, Gari M, Ahmed F, Alqahtani M, Salem N, Karim S, Alhathli EM, Abusamra H, Eldin HFN, Al-Qahtani MH, Kumar S, Al-Adwani F, Hussein D, Al-Sharif M, Jamal A, Al-Ghamdi F, Al-Maghrabi J, Baeesa SS, Bangash M, Chaudhary A, Al-Qahtani M, Schulten HJ, Alamandi A, Alotibi R, Hussein D, Karim S, Al-Maghrabi J, Al-Ghamdi F, Jamal A, Baeesa SS, Bangash M, Chaudhary A, Schulten HJ, Al-Qahtani M, Subhi O, Bagatian N, Karim S, Al-Johari A, Al-Hamour OA, Al-Aradati H, Al-Mutawa A, Al-Mashat F, Al-Maghrabi J, Schulten HJ, Al-Qahtani M, Bagatian N, Subhi O, Karim S, Al-Johari A, Al-Hamour OA, Al-Mutawa A, Al-Aradati H, Al-Mashat F, Al-Qahtani M, Schulten HJ, Al-Maghrabi J, shah MW, Yasir M, Azhar EI, Al-Masoodi S, Haffani YZ, Azouz M, Khamla E, Jlassi C, Masmoudi AS, Cherif A, Belbahri L, Al-Khayyat S, Attas R, Abu-Sanad A, Abuzinadah M, Merdad A, Dallol A, Chaudhary A, Al-Qahtani M, Abuzenadah A, Bouazzi H, Trujillo C, Alwasiyah MK, Al-Qahtani M, Alotaibi M, Nassir R, Sheikh IA, Kamal MA, Jiffri EH, Ashraf GM, Beg MA, Aziz MA, Ali R, Rasool M, Jamal MS, Samman N, Abdussami G, Periyasamy S, Warsi MK, Aldress M, Al Otaibi M, Al Yousef Z, Boudjelal M, Buhmeida A, Al-Qahtani MH, AlAbdulkarim I, Ghazala R, Mathew S, Hamed MH, Assidi M, Al-Qahtani M, Qadri I, Sheikh IA, Abu-Elmagd M, Turki RF, Damanhouri GA, Beg MA, Suhail M, Qureshi A, Jamal A, Pushparaj PN, Al-Qahtani M, Qadri I, El-Readi MZ, Eid SY, Wink M, Isa AM, Alnuaim L, Almutawa J, Abu-Rafae B, Alasiri S, Binsaleh S. Abstracts from the 3rd International Genomic Medicine Conference (3rd IGMC 2015) : Jeddah, Kingdom of Saudi Arabia. 30 November - 3 December 2015. BMC Genomics 2016; 17 Suppl 6:487. [PMID: 27454254 PMCID: PMC4959372 DOI: 10.1186/s12864-016-2858-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
O1 Regulation of genes by telomere length over long distances Jerry W. Shay O2 The microtubule destabilizer KIF2A regulates the postnatal establishment of neuronal circuits in addition to prenatal cell survival, cell migration, and axon elongation, and its loss leading to malformation of cortical development and severe epilepsy Noriko Homma, Ruyun Zhou, Muhammad Imran Naseer, Adeel G. Chaudhary, Mohammed Al-Qahtani, Nobutaka Hirokawa O3 Integration of metagenomics and metabolomics in gut microbiome research Maryam Goudarzi, Albert J. Fornace Jr. O4 A unique integrated system to discern pathogenesis of central nervous system tumors Saleh Baeesa, Deema Hussain, Mohammed Bangash, Fahad Alghamdi, Hans-Juergen Schulten, Angel Carracedo, Ishaq Khan, Hanadi Qashqari, Nawal Madkhali, Mohamad Saka, Kulvinder S. Saini, Awatif Jamal, Jaudah Al-Maghrabi, Adel Abuzenadah, Adeel Chaudhary, Mohammed Al Qahtani, Ghazi Damanhouri O5 RPL27A is a target of miR-595 and deficiency contributes to ribosomal dysgenesis Heba Alkhatabi O6 Next generation DNA sequencing panels for haemostatic and platelet disorders and for Fanconi anaemia in routine diagnostic service Anne Goodeve, Laura Crookes, Nikolas Niksic, Nicholas Beauchamp O7 Targeted sequencing panels and their utilization in personalized medicine Adel M. Abuzenadah O8 International biobanking in the era of precision medicine Jim Vaught O9 Biobank and biodata for clinical and forensic applications Bruce Budowle, Mourad Assidi, Abdelbaset Buhmeida O10 Tissue microarray technique: a powerful adjunct tool for molecular profiling of solid tumors Jaudah Al-Maghrabi O11 The CEGMR biobanking unit: achievements, challenges and future plans Abdelbaset Buhmeida, Mourad Assidi, Leena Merdad O12 Phylomedicine of tumors Sudhir Kumar, Sayaka Miura, Karen Gomez O13 Clinical implementation of pharmacogenomics for colorectal cancer treatment Angel Carracedo, Mahmood Rasool O14 From association to causality: translation of GWAS findings for genomic medicine Ahmed Rebai O15 E-GRASP: an interactive database and web application for efficient analysis of disease-associated genetic information Sajjad Karim, Hend F Nour Eldin, Heba Abusamra, Elham M Alhathli, Nada Salem, Mohammed H Al-Qahtani, Sudhir Kumar O16 The supercomputer facility “AZIZ” at KAU: utility and future prospects Hossam Faheem O17 New research into the causes of male infertility Ashok Agarwa O18 The Klinefelter syndrome: recent progress in pathophysiology and management Eberhard Nieschlag, Joachim Wistuba, Oliver S. Damm, Mohd A. Beg, Taha A. Abdel-Meguid, Hisham A. Mosli, Osama S. Bajouh, Adel M. Abuzenadah, Mohammed H. Al-Qahtani O19 A new look to reproductive medicine in the era of genomics Serdar Coskun P1 Wnt signalling receptors expression in Saudi breast cancer patients Muhammad Abu-Elmagd, Abdelbaset Buhmeida, Ashraf Dallol, Jaudah Al-Maghrabi, Sahar Hakamy, Wejdan Al-Qahtani, Asia Al-Harbi, Shireen Hussain, Mourad Assidi, Mohammed Al-Qahtani, Adel Abuzenadah P2 Analysis of oxidative stress interactome during spermatogenesis: a systems biology approach to reproduction Burak Ozkosem, Rick DuBois P3 Interleukin-18 gene variants are strongly associated with idiopathic recurrent pregnancy loss. Safia S Messaoudi, Maryam T Dandana, Touhami Mahjoub, Wassim Y Almawi P4 Effect of environmental factors on gene-gene and gene-environment reactions: model and theoretical study applied to environmental interventions using genotype S. Abdalla, M. Nabil Al-Aama P5 Genomics and transcriptomic analysis of imatinib resistance in gastrointestinal stromal tumor Asmaa Elzawahry, Tsuyoshi Takahashi, Sachiyo Mimaki, Eisaku Furukawa, Rie Nakatsuka, Isao Kurosaka, Takahiko Nishigaki, Hiromi Nakamura, Satoshi Serada, Tetsuji Naka, Seiichi Hirota, Tatsuhiro Shibata, Katsuya Tsuchihara, Toshirou Nishida, Mamoru Kato P6 In-Silico analysis of putative HCV epitopes against Pakistani human leukocyte antigen background: an approach towards development of future vaccines for Pakistani population Sajid Mehmood, Naeem Mahmood Ashraf, Awais Asif, Muhammad Bilal, Malik Siddique Mehmood, Aadil Hussain P7 Inhibition of AChE and BuChE with the natural compounds of Bacopa monerri for the treatment of Alzheimer’s disease: a bioinformatics approach Qazi Mohammad Sajid Jamal, Mughees Uddin Siddiqui, Mohammad A. Alzohairy, Mohammad A. Al Karaawi P8 Her2 expression in urothelial cell carcinoma of the bladder in Saudi Arabia Taoufik Nedjadi, Jaudah Al-Maghrabi, Mourad Assidi, Heba Al-Khattabi, Adel Al-Ammari, Ahmed Al-Sayyad, Abdelbaset Buhmeida, Mohammed Al-Qahtani P9 Association of angiotensinogen single nucleotide polymorphisms with Preeclampsia in patients from North Africa Hédia Zitouni, Nozha Raguema, Marwa Ben Ali, Wided Malah, Raja Lfalah, Wassim Almawi, Touhami Mahjoub P10 Systems biology analysis reveals relations between normal skin, benign nevi and malignant melanoma Mohammed Elanbari, Andrey Ptitsyn P11 The apoptotic effect of thymoquinone in Jurkat cells Sana Mahjoub, Rabeb El Ghali, Bechir Achour, Nidhal Ben Amor, Mourad Assidi, Brahim N'siri, Hamid Morjani P12 Sonic hedgehog contributes in bladder cancer invasion in Saudi Arabia Taoufik Nedjadi, Adel Al-Ammari, Ahmed Al-Sayyad, Nada Salem, Esam Azhar, Jaudah Al-Maghrabi P13 Association of Interleukin 18 gene promoter polymorphisms - 607A/C and -137 G/C with colorectal cancer onset in a sample of Tunisian population Vera Chayeb, Maryam Dendena, Hedia Zitouni, Khedija Zouari-Limayem, Touhami Mahjoub P14 Pathological expression of interleukin-6, -11, leukemia inhibitory factor and their receptors in tubal gestation with and without tubal cytomegalovirus infection Bassem Refaat, Ahmed M Ashshi, Sarah A Batwa P15 Phenotypic and genetic profiling of avian pathogenic and human diarrhegenic Escherichia coli in Egypt Hazem Ramadan, Amal Awad, Ahmed Ateya P16 Cancer-targeting dual gene virotherapy as a promising therapeutic strategy for treatment of hepatocellular carcinoma Adel Galal Ahmed El-Shemi, Ahmad Ashshi, Mohammed Basalamah, Youjin Na, Chae-Ok YUN P17 Cancer dual gene therapy with oncolytic adenoviruses expressing TRAIL and IL-12 transgenes markedly eradicated human hepatocellular carcinoma both in vitro and in vivo Adel Galal Ahmed El-Shemi, Ahmad Ashshi, Mohammed Basalamah, Youjin Na, Chae-Ok Yun P18 Therapy with paricalcitol attenuates tumor growth and augments tumoricidal and anti-oncogenic effects of 5-fluorouracil on animal model of colon cancer Adel Galal El-Shemi, Bassem Refaat, Osama Kensara, Amr Abdelfattah P19 The effects of Rubus idaeus extract on normal human lymphocytes and cancer cell line Batol Imran Dheeb, Mohammed M. F. Al-Halbosiy, Rghad Kadhim Al lihabi, Basim Mohammed Khashman P20 Etanercept, a TNF-alpha inhibitor, alleviates mechanical hypersensitivity and spontaneous pain in a rat model of chemotherapy-induced neuropathic pain Djouhri, Laiche, Chaudhary Adeel, Nedjadi, Taoufik P21 Sleeping beauty mutagenesis system identified genes and neuronal transcription factor network involved in pediatric solid tumour (medulloblastoma) Hani Al-Afghani, Maria Łastowska, Haya H Al-Balool, Harsh Sheth, Emma Mercer, Jonathan M Coxhead, Chris PF Redfern, Heiko Peters, Alastair D Burt, Mauro Santibanez-Koref, Chris M Bacon, Louis Chesler, Alistair G Rust, David J Adams, Daniel Williamson, Steven C Clifford, Michael S Jackson P22 Involvement of interleukin-1 in vitiligo pathogenesis Mala Singh, Mohmmad Shoab Mansuri, Shahnawaz D. Jadeja, Hima Patel, Yogesh S. Marfatia, Rasheedunnisa Begum P23 Cytogenetics abnormalities in 12,884 referred population for chromosomal analysis and the role of FISH in refining the diagnosis (cytogenetic experience 2004-2013) Amal M Mohamed, Alaa K Kamel, Nivin A Helmy, Sayda A Hammad, Hesham F Kayed, Marwa I Shehab, Assad El Gerzawy, Maha M. Ead, Ola M Ead, Mona Mekkawy, Innas Mazen, Mona El-Ruby P24 Analysis of binding properties of angiotensin-converting enzyme 2 through in silico method S. M. A. Shahid, Qazi Mohammad Sajid Jamal, J. M. Arif, Mohtashim Lohani P25 Relationship of genetics markers cis and trans to the β-S globin gene with fetal hemoglobin expression in Tunisian sickle cell patients Moumni Imen, Chaouch Leila, Ouragini Houyem, Douzi Kais, Chaouachi Dorra Mellouli Fethi, Bejaoui Mohamed, Abbes Salem P26 Analysis of estrogen receptor alpha gene polymorphisms in breast cancer: link to genetic predisposition in Sudanese women Areeg Faggad, Amanuel T Gebreslasie, Hani Y Zaki, Badreldin E Abdalla P27 KCNQI gene polymorphism and its association with CVD and T2DM in the Saudi population Maha S AlShammari, Rhaya Al-Ali, Nader Al-Balawi , Mansour Al-Enazi, Ali Al-Muraikhi, Fadi Busaleh, Ali Al-Sahwan, Francis Borgio, Abdulazeez Sayyed, Amein Al-Ali, Sadananda Acharya P28 Clinical, neuroimaging and cytogenetic study of a patient with microcephaly capillary malformation syndrome Maha S. Zaki, Hala T. El-Bassyouni, Marwa I. Shehab P29 Altered expression of CD200R1 on dendritic cells of patients with inflammatory bowel diseases: in silico investigations and clinical evaluations Mohammed F. Elshal, Kaleemuddin M., Alia M. Aldahlawi, Omar Saadah, J. Philip McCoy P30 Development of real time PCR diagnostic protocol specific for the Saudi Arabian H1N1 viral strains Adel E El-Tarras, Nabil S Awad, Abdulla A Alharthi, Mohamed M M Ibrahim P31 Identification of novel genetic variations affecting Osteoarthritis patients Haneen S Alsehli, Ashraf Dallol, Abdullah M Gari, Mohammed M Abbas, Roaa A Kadam, Mazen M. Gari, Mohmmed H Alkaff, Adel M Abuzenadah, Mamdooh A Gari P32 An integrated database of GWAS SNVs and their evolutionary properties Heba Abusamra, Sajjad Karim, Hend F Nour eldin, Elham M Alhathli, Nada Salem, Sudhir Kumar, Mohammed H Al-Qahtani P33 Familial hypercholesterolemia in Saudi Arabia: prime time for a national registry and genetic analysis Fatima A. Moradi, Omran M. Rashidi, Zuhier A. Awan P34 Comparative genomics and network-based analyses of early hepatocellular carcinoma Ibrahim Hamza Kaya, Olfat Al-Harazi, Dilek Colak P35 A TALEN-based oncolytic viral vector approach to knock out ABCB1 gene mediated chemoresistance in cancer stem cells Nabila A Alkousi, Takis Athanasopoulos P36 Cartilage differentiation and gene expression of synovial fluid mesenchymal stem cells derived from osteoarthritis patients Afnan O Bahmaid, Etimad A Alhwait, Mamdooh A Gari, Haneen S Alsehli, Mohammed M Abbas, Mohammed H Alkaf, Roaa Kadam, Ashraf Dallol, Gauthaman Kalamegam P37 E-GRASP: Adding an evolutionary component to the genome-wide repository of associations (GRASP) resource Hend F Nour Eldin, Sajjad Karim, Heba Abusamra, Elham Alhathli, Nada Salem, Mohammed H Al-Qahtani, Sudhir Kumar P38 Screening of AGL gene mutation in Saudi family with glycogen storage disease Type III Salma N Alsayed, Fawziah H Aljohani, Samaher M Habeeb, Rawan A Almashali, Sulman Basit, Samia M Ahmed P39 High throughput proteomic data suggest modulation of cAMP dependent protein kinase A and mitochondrial function in infertile patients with varicocele Rakesh Sharma, Ashok Agarwal, Damayanthi Durairajanayagam, Luna Samanta, Muhammad Abu-Elmagd, Adel M. Abuzenadah, Edmund S. Sabanegh, Mourad Assidi, Mohammed Al-Qahtani P40 Significant protein profile alterations in men with primary and secondary infertility Ashok Agarwal, Rakesh Sharma, Luna Samanta, Damayanthi Durairajanayagam, Mourad Assidi, Muhammad Abu-Elmagd, Mohammed Al-Qahtani, Adel M. Abuzenadah, Edmund S. Sabanegh P41 Spermatozoa maturation in infertile patients involves compromised expression of heat shock proteins Luna Samanta, Ashok Agarwal, Rakesh Sharma, Zhihong Cui, Mourad Assidi, Adel M. Abuzenadah, Muhammad Abu-Elmagd, Mohammed Al-Qahtani P42 Array comparative genomic hybridization approach to search genomic answers for spontaneous recurrent abortion in Saudi Arabia Alaa A Alboogmi, Nuha A Alansari, Maha M Al-Quaiti, Fai T Ashgan, Afnan Bandah, Hasan S Jamal, Abdullraheem Rozi, Zeenat Mirza, Adel M Abuzenadah, Sajjad Karim, Mohammed H Al-Qahtani P43 Global gene expression profiling of Saudi kidney cancer patients Sajjad Karim, Hans-Juergen Schulten, Ahmad J Al Sayyad, Hasan MA Farsi, Jaudah A Al-Maghrabi, Zeenat Mirza, Reem Alotibi, Alaa Al-Ahmadi, Nuha A Alansari, Alaa A Albogmi, Maha M Al-Quaiti, Fai T Ashgan, Afnan Bandah, Mohammed H Al-Qahtani P44 Downregulated StAR gene and male reproductive dysfunction caused by nifedipine and ethosuximide Rasha A Ebiya, Samia M Darwish, Metwally M. Montaser P45 Clustering based gene expression feature selection method: A computational approach to enrich the classifier efficiency of differentially expressed genes Heba Abusamra, Vladimir B. Bajic P46 Prognostic significance of Osteopontin expression profile in colorectal carcinoma Jaudah Al-Maghrabi, Wafaey Gomaa, Mehenaz Hanbazazh, Mahmoud Al-Ahwal, Asia Al-Harbi, Wejdan Al-Qahtani, Saher Hakamy, Ghali Baba, Abdelbaset Buhmeida, Mohammed Al-Qahtani P47 High Glypican-3 expression pattern predicts longer disease-specific survival in colorectal carcinoma Jaudah Al-Maghrabi, Abdullah Al-Harbi, Mahmoud Al-Ahwal, Asia Al-Harbi, Wejdan Al-Qahtani, Sahar Hakamy, Ghalia Baba, Abdelbaset Buhmeida, Mohammed Al-Qahtani P48 An evolutionary re-assessment of GWAS single nucleotide variants implicated in the Cholesterol traits Elham M Alhathli, Sajjad Karim, Nada Salem, Hend Nour Eldin, Heba Abusamra, Sudhir Kumar, Mohammed H Al-Qahtani P49 Derivation and characterization of human Wharton’s jelly stem cells (hWJSCs) in vitro for future therapeutic applications Aisha A Alyamani, Gauthaman Kalamegam, Etimad A Alhwait, Mamdooh A Gari, Mohammed M Abbas, Mohammed H Alkaf, Haneen S Alsehli, Roaa A Kadam, Mohammed Al-Qahtani P50 Attitudes of healthcare students toward biomedical research in the post-genomic era Rawan Gadi, Abdelbaset Buhmeida, Mourad Assidi , Adeel Chaudhary, Leena Merdad P51 Evaluation of the immunomodulatory effects of thymoquinone on human bone marrow mesenchymal stem cells (BM-MSCs) from osteoarthritic patients Saadiah M Alfakeeh, Etimad A Alhwait, Mamdooh A Gari, Mohammed M Abbas, Mohammed H Alkaf, Haneen S Alsehli, Roaa Kadam, Gauthaman Kalamegam P52 Implication of IL-10 and IL-28 polymorphism with successful anti-HCV therapy and viral clearance Rubi Ghazala, Shilu Mathew, M.Haroon Hamed, Mourad Assidi, Mohammed Al-Qahtani, Ishtiaq Qadri P53 Selection of flavonoids against obesity protein (FTO) using in silico and in vitro approaches Shilu Mathew, Lobna Mira, Manal Shaabad, Shireen Hussain, Mourad Assidi, Muhammad Abu-Elmagd, Mohammed Al-Qahtani P54 Computational selection and in vitro validation of flavonoids as new antidepressant agents Shilu Mathew, Manal Shaabad, Lobna Mira, Shireen Hussain, Mourad Assidi, Muhammad Abu-Elmagd, Mohammed Al-Qahtani P55 In Silico prediction and prioritization of aging candidate genes associated with progressive telomere shortening Ahmed Rebai, Mourad Assidi, Abdelbaset Buhmeida, Muhammad Abu-Elmagd, Ashraf Dallol, Jerry W Shay P56 Identification of new cancer testis antigen genes in diverse types of malignant human tumour cells Mikhlid H Almutairi P57 More comprehensive forensic genetic marker analyses for accurate human remains identification using massively parallel sequencing (MPS) Angie Ambers, Jennifer Churchill, Jonathan King, Monika Stoljarova, Harrell Gill-King, Mourad Assidi, Muhammad Abu-Elmagd, Abdelbaset Buhmeida, Muhammad Al-Qatani, Bruce Budowle P58 Flow cytometry approach towards treatment men infertility in Saudi Arabia Muhammad Abu-Elmagd, Farid Ahmed, Ashraf Dallol, Mourad Assidi, Taha Abo Almagd, Sahar Hakamy, Ashok Agarwal, Muhammad Al-Qahtani, Adel Abuzenadah P59 Tissue microarray based validation of CyclinD1 expression in renal cell carcinoma of Saudi kidney patients Sajjad Karim, Hans-Juergen Schulten, Ahmad J Al Sayyad, Hasan MA Farsi, Jaudah A Al-Maghrabi, Abdelbaset Buhmaida, Zeenat Mirza, Reem Alotibi, Alaa Al-Ahmadi, Nuha A Alansari, Alaa A Albogmi, Maha M Al-Quaiti, Fai T Ashgan, Afnan Bandah, Mohammed H Al-Qahtani P60 Assessment of gold nanoparticles in molecular diagnostics and DNA damage studies Rukhsana Satar, Mahmood Rasool, Waseem Ahmad, Nazia Nazam, Mohamad I Lone, Muhammad I Naseer, Mohammad S Jamal, Syed K Zaidi, Peter N Pushparaj, Mohammad A Jafri, Shakeel A Ansari, Mohammed H Alqahtani P61 Surfing the biospecimen management and processing workflow at CEGMR Biobank Hanan Bashier, Abrar Al Qahtani, Shilu Mathew, Amal M. Nour, Heba Alkhatabi, Adel M. Abu Zenadah, Abdelbaset Buhmeida, Mourad Assidi, Muhammed Al Qahtani P62 Autism Spectrum Disorder: knowledge, attitude and awareness in Jeddah, Kingdom of Saudi Arabia Muhammad Faheem, Shilu Mathew, Shiny Mathew, Peter Natesan Pushparaj, Mohammad H. Al-Qahtani P63 Simultaneous genetic screening of the coagulation pathway genes using the Thromboscan targeted sequencing panel Hani A. Alhadrami, Ashraf Dallol, Adel Abuzenadah P64 Genome wide array comparative genomic hybridization analysis in patients with syndromic congenital heart defects Ibtessam R. Hussein, Adeel G. Chaudhary, Rima S Bader, Randa Bassiouni, Maha Alquaiti, Fai Ashgan, Hans Schulten, Mohamed Nabil Alama, Mohammad H. Al Qahtani P65 Toxocogenetic evaluation of 1, 2-Dichloroethane in bone marrow, blood and cells of immune system using conventional, molecular and flowcytometric approaches Mohammad I Lone, Nazia Nizam, Waseem Ahmad, Mohammad A Jafri, Mahmood Rasool, Shakeel A Ansari, Muhammed H Al-Qahtani P66 Molecular cytogenetic diagnosis of sexual development disorders in newborn: A case of ambiguous genitalia Eradah Alshihri, Muhammad Abu-Elmagd, Lina Alharbi, Mourad Assidi, Mohammed Al-Qahtani P67 Identification of disease specific gene expression clusters and pathways in hepatocellular carcinoma using In Silico methodologies Shilu Mathew, Peter Pushparaj Natesan, Muhammed Al Qahtani P68 Human Wharton’s Jelly stem cell conditioned medium inhibits primary ovarian cancer cells in vitro: Identification of probable targets and mechanisms using systems biology Gauthaman Kalamegam, Peter Natesan Pushparaj, Fazal Khan, Roaa Kadam, Farid Ahmed, Mourad Assidi, Khalid Hussain Wali Sait, Nisreen Anfinan, Mohammed Al Qahtani P69 Mutation spectrum of ASPM (Abnormal Spindle-like, Microcephaly-associated) gene in Saudi Arabian population Muhammad I Naseer, Adeel G Chaudhary, Mohammad S Jamal, Shilu Mathew, Lobna S Mira, Peter N Pushparaj, Shakeel A Ansari, Mahmood Rasool, Mohammed H AlQahtani P70 Identification and characterization of novel genes and mutations of primary microcephaly in Saudi Arabian population Muhammad I Naseer, Adeel G Chaudhary, Shilu Mathew, Lobna S Mira, Mohammad S Jamal, Sameera Sogaty, Randa I Bassiouni, Mahmood Rasool, Mohammed H AlQahtani P71 Molecular genetic analysis of hereditary nonpolyposis colorectal cancer (Lynch Syndrome) in Saudi Arabian population Mahmood Rasool, Shakeel A Ansari, Mohammad S Jamal, Peter N Pushparaj, Abdulrahman MS Sibiani, Waseem Ahmad, Abdelbaset Buhmeida, Mohammad A Jafri, Mohiuddin K Warsi, Muhammad I Naseer, Mohammed H Al-Qahtani P72 Function predication of hypothetical proteins from genome database of chlamydia trachomatis Rubi, Kundan Kumar, Ahmad AT Naqvi, Faizan Ahmad, Md I Hassan, Mohammad S Jamal, Mahmood Rasool, Mohammed H AlQahtani P73 Transcription factors as novel molecular targets for skin cancer Ashraf Ali, Jummanah Jarullah, Mahmood Rasool, Abdelbasit Buhmeida, Shahida Khan, Ghufrana Abdussami, Maryam Mahfooz, Mohammad A Kamal, Ghazi A Damanhouri, Mohammad S Jamal P74 An In Silico analysis of Plumbagin binding to apoptosis executioner: Caspase-3 and Caspase-7 Bushra Jarullah, Jummanah Jarullah, Mohammad SS Jarullah, Ashraf Ali, Mahmood Rasool, Mohammad S Jamal P75 Single cell genomics applications for preimplantation genetic screening optimization: Comparative analysis of whole genome amplification technologies Mourad Assidi, Muhammad Abu-Elmagd, Osama Bajouh, Peter Natesan Pushparaj, Mohammed Al-Qahtani, Adel Abuzenadah P76 ZFP36 regulates miRs-34a in anti-IgM triggered immature B cells Mohammad S Jamal, Jummanah Jarullah, Abdulah EA Mathkoor, Hashim MA Alsalmi, Anas MM Oun, Ghazi A Damanhauri, Mahmood Rasool, Mohammed H AlQahtani P77 Identification of a novel mutation in the STAMBP gene in a family with microcephaly-capillary malformation syndrome Muhammad I. Naseer, Mahmood Rasool, Sameera Sogaty, Adeel G. Chudhary, Yousif A. Abutalib, Daniele Merico, Susan Walker, Christian R. Marshall, Mehdi Zarrei, Stephen W. Scherer, Mohammad H. Al-Qahtani P78 Copy number variations in Saudi patients with intellectual disability and epilepsy Muhammad I. Naseer, Muhammad Faheem, Adeel G. Chaudhary, Mahmood Rasool, Gauthaman Kalamegam, Fai Talal Ashgan, Mourad Assidi, Farid Ahmed, Syed Kashif Zaidi, Mohammed M. Jan, Mohammad H. Al-Qahtani P79 Prognostic significance of CD44 expression profile in colorectal carcinoma Maryam Al-Zahrani, Sahira Lary, Sahar Hakamy, Ashraf Dallol, Mahmoud Al-Ahwal, Jaudah Al-Maghrabi, Emmanuel Dermitzakis, Adel Abuzenadah, Abdelbaset Buhmeida, Mohammed Al-Qahtani P80 Association of the endothelial nitric oxide synthase (eNOS) gene G894T polymorphism with hypertension risk and complications Abeer A Al-refai, Mona Saleh, Rehab I Yassien, Mahmmoud Kamel, Rabab M Habeb P81 SNPs array to screen genetic variation among diabetic patients Najlaa Filimban, Ashraf Dallol, Nadia Ghannam, Mohammed Al-Qahtani, Adel Mohammed Abuzenadah P82 Detection and genotyping of Helicobacter pylori among gastric cancer patients from Saudi Arabian population Fehmida Bibi, Sana Akhtar, Esam I. Azhar, Muhammad Yasir, Muhammad I. Nasser, Asif A. Jiman-Fatani, Ali Sawan P83 Antimicrobial drug resistance and molecular detection of susceptibility to Fluoroquinolones among clinical isolates of Salmonella species from Jeddah-Saudi Arabia Ruaa A Lahzah, Asho Ali P84 Identification of the toxic and virulence nature of MAP1138c protein of Mycobacterium avium subsp. paratuberculosis Syed A Hassan, Seyed E Hasnain, Iftikhar A Tayubi, Hamza A Abujabal, Alaa O Magrabi P85 In vitro and in silico evaluation of miR137 in human breast cancer Fazal Khan, Gauthaman Kalamegam, Peter Natesan Pushparaj, Adel Abuzenada, Taha Abduallah Kumosani, Elie Barbour, Mohammed Al-Qahtani P86 Auruka gene is over-expressed in Saudi breast cancer Manal Shabaad, Shilu Mathew, Ashraf Dallol, Adnan Merdad, Abdelbaset Buhmeida, Mohammed Al-Qahtani P87 The potential of immunogenomics in personalized healthcare Mourad Assidi, Muhammad Abu-Elmagd, Kalamegam Gauthaman, Mamdooh Gari, Adeel Chaudhary, Adel Abuzenadah, Peter Natesan Pushparaj, Mohammed Al-Qahtani P88 In Silico physiochemical and structural characterization of a putative ORF MAP0591 and its implication in the pathogenesis of Mycobacterium paratuberculosis in ruminants and humans Syed A Hassan, Iftikhar A Tayubi, Hani MA Aljahdali P89 Effects of heat shock on human bone marrow mesenchymal stem cells (BM-MSCs): Implications in regenerative medicine Reham Al Nono, Mamdooh Gari, Haneen Alsehli, Farid Ahmed, Mohammed Abbas, Gauthaman Kalamegam, Mohammed Al-Qahtani P90 In Silico analyses of the molecular targets of Resveratrol unravels its importance in mast cell mediated allergic responses Shilu Mathew, Fazal Khan, Mahmood Rasool, Mohammed Sarwar Jamal, Muhammad Imran Naseer, Zeenat Mirza, Sajjad Karim, Shakeel Ansari, Mourad Assidi, Gauthaman Kalamegam, Mamdooh Gari, Adeel Chaudhary, Adel Abuzenadah, Peter Natesan Pushparaj, Mohammed Al-Qahtani P91 Effects of environmental particulate matter on bone-marrow mesenchymal stem cells Muhammad Abu-Elmagd, Gauthaman Kalamegam, Roaa Kadam, Mansour A Alghamdi, Magdy Shamy, Max Costa, Mamdouh I Khoder, Mourad Assidi, Peter Natesan Pushparaj, Mamdooh Gari, Mohammed Al-Qahtani P92 Distinctive charge clusters in human virus proteomes Najla Kharrat, Sabrine Belmabrouk, Rania Abdelhedi, Riadh Benmarzoug, Mourad Assidi, Mohammed H. Al Qahtani, Ahmed Rebai P93 In vitro experimental model and approach in identification of new biomarkers of inflammatory forms of arthritis Ghazi Dhamanhouri, Peter Natesan Pushparaj, Abdelwahab Noorwali, Mohammad Khalid Alwasiyah, Afnan Bahamaid, Saadiah Alfakeeh, Aisha Alyamani, Haneen Alsehli, Mohammed Abbas, Mamdooh Gari, Ali Mobasheri, Gauthaman Kalamegam, Mohammed Al-Qahtani P94 Molecular docking of GABAA receptor subunit γ-2 with novel anti-epileptic compounds Muhammad Faheem, Shilu Mathew, Peter Natesan Pushparaj, Mohammad H. Al-Qahtani P95 Breast cancer knowledge, awareness, and practices among Saudi females residing in Jeddah Shilu Mathew, Muhammad Faheem, Shiny Mathew, Peter Natesan Pushparaj, Mohammad H. Al-Qahtani P96 Anti-inflammatory role of Sesamin by Attenuation of Iba1/TNF-α/ICAM-1/iNOS signaling in Diabetic Retinopathy Mohammad Sarwar Jamal, Syed Kashif Zaidi, Raziuddin Khan, Kanchan Bhatia, Mohammed H. Al-Qahtani, Saif Ahmad P97 Identification of drug lead molecule against vp35 protein of Ebola virus: An In-Silico approach Iftikhar AslamTayubi, Manish Tripathi, Syed Asif Hassan, Rahul Shrivastava P98 An approach to personalized medicine from SNP-calling through disease analysis using whole exome-sequencing of three sub-continental populations Iftikhar A Tayubi, Syed Hassan, Hamza A.S Abujabal P99 Low versus high frequency of Glucose –6 – Phosphate Dehydrogenase (G6PD) deficiency in urban against tribal population of Gujarat – A signal to natural selection Ishani Shah, Bushra Jarullah, Mohammad S Jamal, Jummanah Jarullah P100 Spontaneous preterm birth and single nucleotide gene polymorphisms: a recent update Ishfaq A Sheikh, Ejaz Ahmad, Mohammad S Jamal, Mohd Rehan, Muhammad Abu-Elmagd, Iftikhar A Tayubi, Samera F AlBasri, Osama S Bajouh, Rola F Turki, Adel M Abuzenadah, Ghazi A Damanhouri, Mohd A Beg, Mohammed Al-Qahtani P101 Prevalence of congenital heart diseases among Down syndrome cases in Saudi Arabia: role of molecular genetics in the pathogenesis Sahar AF Hammoudah, Khalid M AlHarbi, Lama M El-Attar, Ahmed MZ Darwish P102 Combinatorial efficacy of specific pathway inhibitors in breast cancer cells Sara M Ibrahim, Ashraf Dallol, Hani Choudhry, Adel Abuzenadah, Jalaludden Awlia, Adeel Chaudhary, Farid Ahmed, Mohammed Al-Qahtani P103 MiR-143 and miR-145 cluster as potential replacement medicine for the treatment of cancer Mohammad A Jafri, Muhammad Abu-Elmagd, Mourad Assidi, Mohammed Al-Qahtani P104 Metagenomic profile of gut microbiota during pregnancy in Saudi population Imran khan, Muhammad Yasir, Esam I. Azhar, Sameera Al-basri, Elie Barbour, Taha Kumosani P105 Exploration of anticancer targets of selected metabolites of Phoenix dactylifera L. using systems biological approaches Fazal Khan, Gauthaman Kalamegam, Peter Natesan Pushparaj, Adel Abuzenada, Taha Abduallah Kumosani, Elie Barbour P106 CD226 and CD40 gene polymorphism in susceptibility to Juvenile rheumatoid arthritis in Egyptian patients Heba M. EL Sayed, Eman A. Hafez P107 Paediatric exome sequencing in autism spectrum disorder ascertained in Saudi families Hans-Juergen Schulten, Aisha Hassan Elaimi, Ibtessam R Hussein, Randa Ibrahim Bassiouni, Mohammad Khalid Alwasiyah, Richard F Wintle, Adeel Chaudhary, Stephen W Scherer, Mohammed Al-Qahtani P108 Crystal structure of the complex formed between Phospholipase A2 and the central core hydrophobic fragment of Alzheimer’s β- amyloid peptide: a reductionist approach Zeenat Mirza, Vikram Gopalakrishna Pillai, Sajjad Karim, Sujata Sharma, Punit Kaur, Alagiri Srinivasan, Tej P Singh, Mohammed Al-Qahtani P109 Differential expression profiling between meningiomas from female and male patients Reem Alotibi, Alaa Al-Ahmadi, Fatima Al-Adwani, Deema Hussein, Sajjad Karim, Mona Al-Sharif, Awatif Jamal, Fahad Al-Ghamdi, Jaudah Al-Maghrabi, Saleh S Baeesa, Mohammed Bangash, Adeel Chaudhary, Hans-Juergen Schulten, Mohammed Al-Qahtani P110 Neurospheres as models of early brain development and therapeutics Muhammad Faheem, Peter Natesan Pushparaj, Shilu Mathew, Taha Abdullah Kumosani, Gauthaman Kalamegam, Mohammed Al-Qahtani P111 Identification of a recurrent causative missense mutation p.(W577C) at the LDLR exon 12 in familial hypercholesterolemia affected Saudi families Faisal A Al-Allaf, Zainularifeen Abduljaleel, Abdullah Alashwal, Mohiuddin M. Taher, Abdellatif Bouazzaoui, Halah Abalkhail, Faisal A. Ba-Hammam, Mohammad Athar P112 Epithelial ovarian carcinoma (EOC): Systems oncological approach to identify diagnostic, prognostic and therapeutic biomarkers Gauthaman Kalamegam, Peter Natesan Pushparaj, Muhammad Abu-Elmagd, Farid Ahmed Khalid HussainWali Sait, Nisreen Anfinan, Mamdooh Gari, Adeel Chaudhary, Adel Abuzenadah, Mourad Assidi, Mohammed Al-Qahtani P113 Crohn’s disease phenotype in northern Tunisian population Naira Ben Mami, Yosr Z Haffani, Mouna Medhioub, Lamine Hamzaoui, Ameur Cherif, Msadok Azouz P114 Establishment of In Silico approaches to decipher the potential toxicity and mechanism of action of drug candidates and environmental agents Gauthaman Kalamegam, Fazal Khan, Shilu Mathew, Mohammed Imran Nasser, Mahmood Rasool, Farid Ahmed, Peter Natesan Pushparaj, Mohammed Al-Qahtani P115 1q Gain predicts poor prognosis marker for young breast cancer patients Shereen A Turkistany, Lina M Al-harbi, Ashraf Dallol, Jamal Sabir, Adeel Chaudhary, Adel Abuzenadah P116 Disorders of sex chromosomes in a diagnostic genomic medicine unit in Saudi Arabia: Prevalence, diagnosis and future guidelines Basmah Al-Madoudi, Bayan Al-Aslani, Khulud Al-Harbi, Rwan Al-Jahdali, Hanadi Qudaih, Emad Al Hamzy, Mourad Assidi, Mohammed Al Qahtani P117 Combination of WYE354 and Sunitinib demonstrate synergistic inhibition of acute myeloid leukemia in vitro Asad M Ilyas, Youssri Ahmed, Mamdooh Gari, Farid Ahmed, Mohammed Alqahtani P118 Integrated use of evolutionary information in GWAS reveals important SNPs in Asthma Nada Salem, Sajjad Karim, Elham M Alhathli, Heba Abusamra, Hend F Nour Eldin, Mohammed H Al-Qahtani, Sudhir Kumar P119 Assessment of BRAF, IDH1, IDH2, and EGFR mutations in a series of primary brain tumors Fatima Al-Adwani, Deema Hussein, Mona Al-Sharif, Awatif Jamal, Fahad Al-Ghamdi, Jaudah Al-Maghrabi, Saleh S Baeesa, Mohammed Bangash, Adeel Chaudhary, Mohammed Al-Qahtani, Hans-Juergen Schulten P120 Expression profiles distinguish oligodendrogliomas from glioblastoma multiformes with or without oligodendroglioma component Alaa Alamandi, Reem Alotibi, Deema Hussein, Sajjad Karim, Jaudah Al-Maghrabi, Fahad Al-Ghamdi, Awatif Jamal, Saleh S Baeesa, Mohammed Bangash, Adeel Chaudhary, Hans-Juergen Schulten, Mohammed Al-Qahtani P121 Hierarchical clustering in thyroid goiters and hyperplastic lesions Ohoud Subhi, Nadia Bagatian, Sajjad Karim, Adel Al-Johari, Osman Abdel Al-Hamour, Hosam Al-Aradati, Abdulmonem Al-Mutawa, Faisal Al-Mashat, Jaudah Al-Maghrabi, Hans-Juergen Schulten, Mohammad Al-Qahtani P122 Differential expression analysis in thyroiditis and papillary thyroid carcinomas with or without coexisting thyroiditis Nadia Bagatian, Ohoud Subhi, Sajjad Karim, Adel Al-Johari, Osman Abdel Al-Hamour, Abdulmonem Al-Mutawa, Hosam Al-Aradati, Faisal Al-Mashat, Mohammad Al-Qahtani, Hans-Juergen Schulten, Jaudah Al-Maghrabi P123 Metagenomic analysis of waste water microbiome in Sausdi Arabia Muhammad W shah, Muhammad Yasir, Esam I Azhar, Saad Al-Masoodi P124 Molecular characterization of Helicobacter pylori from faecal samples of Tunisian patients with gastric cancer Yosr Z Haffani, Msadok Azouz, Emna Khamla, Chaima Jlassi, Ahmed S. Masmoudi, Ameur Cherif, Lassaad Belbahri P125 Diagnostic application of the oncoscan© panel for the identification of hereditary cancer syndrome Shadi Al-Khayyat, Roba Attas, Atlal Abu-Sanad, Mohammed Abuzinadah, Adnan MerdadAshraf Dallol, Adeel Chaudhary, Mohammed Al-Qahtani, Adel Abuzenadah P126 Characterization of clinical and neurocognitive features in a family with a novel OGT gene missense mutation c. 1193G > A/ (p. Ala319Thr) Habib Bouazzi, Carlos Trujillo, Mohammad Khalid Alwasiyah, Mohammed Al-Qahtani P127 Case report: a rare homozygous deletion mutation of TMEM70 gene associated with 3-Methylglutaconic Aciduria and cataract in a Saudi patient Maha Alotaibi, Rami Nassir P128 Isolation and purification of antimicrobial milk proteins Ishfaq A Sheikh, Mohammad A Kamal, Essam H Jiffri, Ghulam M Ashraf, Mohd A Beg P129 Integrated analysis reveals association of ATP8B1 gene with colorectal cancer Mohammad A Aziz, Rizwan Ali, Mahmood Rasool, Mohammad S Jamal, Nusaibah samman, Ghufrana Abdussami, Sathish Periyasamy, Mohiuddin K Warsi, Mohammed Aldress, Majed Al Otaibi, Zeyad Al Yousef, Mohamed Boudjelal, Abdelbasit Buhmeida, Mohammed H Al-Qahtani, Ibrahim AlAbdulkarim P130 Implication of IL-10 and IL-28 polymorphism with successful anti-HCV therapy and viral clearance Rubi Ghazala, Shilu Mathew, M. Haroon Hamed, Mourad Assidi, Mohammed Al-Qahtani, Ishtiaq Qadri P131 Interactions of endocrine disruptor di-(2-ethylhexyl) phthalate (DEHP) and its metabolite mono-2-ethylhexyl phthalate (MEHP) with progesterone receptor Ishfaq A Sheikh, Muhammad Abu-Elmagd, Rola F Turki, Ghazi A Damanhouri, Mohd A. Beg P132 Association of HCV nucleotide polymorphism in the development of hepatocellular carcinoma Mohd Suhail, Abid Qureshi, Adil Jamal, Peter Natesan Pushparaj, Mohammad Al-Qahtani, Ishtiaq Qadri P133 Gene expression profiling by DNA microarrays in colon cancer treated with chelidonine alkaloid Mahmoud Z El-Readi, Safaa Y Eid, Michael Wink P134 Successful in vitro fertilization after eight failed trials Ahmed M. Isa, Lulu Alnuaim, Johara Almutawa, Basim Abu-Rafae, Saleh Alasiri, Saleh Binsaleh P135 Genetic sensitivity analysis using SCGE, cell cycle and mitochondrial membrane potential in OPs stressed leukocytes in Rattus norvegicus through flow cytometric input Nazia Nazam, Mohamad I Lone, Waseem Ahmad, Shakeel A Ansari, Mohamed H Alqahtani
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Brocato J, Wu F, Chen Y, Shamy M, Alghamdi MA, Khoder MI, Alkhatim AA, Abdou MH, Costa M. Association between sleeping hours and cardiometabolic risk factors for metabolic syndrome in a Saudi Arabian population. BMJ Open 2015; 5:e008590. [PMID: 26621514 PMCID: PMC4679834 DOI: 10.1136/bmjopen-2015-008590] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Epidemiological and molecular studies have shown that sleep duration is associated with metabolic syndrome (MtS), a disease that is on the rise in the Kingdom of Saudi Arabia. We aim to investigate the association between sleep duration and selected cardiometabolic risk factors of MtS in a Saudi Arabian population. SETTING Secondary care was given to the participants. There were 2 participating centres, shopping malls in North and South Jeddah, Saudi Arabia. PARTICIPANTS We recruited 2686 participants over a 1-year study period. Participants were selected based on their willingness. The only criterion for exclusion was living in the area (North or South Jeddah) for less than 15 years. PLANNED AND PRIMARY OUTCOME MEASURES Participants were measured for blood sugar levels, blood pressure and body mass index. All participants were asked to fill out a questionnaire. RESULTS There was a positive association between longer sleep duration and obesity, hypertension and hyperglycaemia. The adjusted ORs for obesity, hypertension and hyperglycaemia were 1.54 (95% CI 1.20 to 1.98), 1.89 (95% CI 1.45 to 2.48) and 1.59 (95% CI 1.19 to 2.13), respectively, in participants sleeping >8 h/night, as compared with those sleeping 7 h. The positive associations between longer sleep duration, defined as sleeping >7 h, and the disease status, did not differ from other risk factors such as physical activity and nutrition. CONCLUSIONS This is the first epidemiological study reporting on the association between sleep duration and cardiometabolic risk factors of MtS in a Saudi Arabian population. Sleep durations of 8 h or greater were found to be associated with all 3 cardiometabolic risk factors: obesity, hypertension and hyperglycaemia, and this relationship was not confounded by quality of nutrition or physical activity levels.
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Affiliation(s)
- Jason Brocato
- Department of Environmental Medicine, NYU School of Medicine, New York, New York, USA
| | - Fen Wu
- Department of Population Health, NYU School of Medicine, New York, New York, USA
| | - Yu Chen
- Department of Environmental Medicine, NYU School of Medicine, New York, New York, USA
- Department of Population Health, NYU School of Medicine, New York, New York, USA
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh I Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alser A Alkhatim
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh H Abdou
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, New York, New York, USA
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12
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Buggiano V, Petrillo E, Alló M, Lafaille C, Redal MA, Alghamdi MA, Khoder MI, Shamy M, Muñoz MJ, Kornblihtt AR. Effects of airborne particulate matter on alternative pre-mRNA splicing in colon cancer cells. Environ Res 2015; 140:185-190. [PMID: 25863591 DOI: 10.1016/j.envres.2015.04.001] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 02/28/2015] [Accepted: 04/01/2015] [Indexed: 06/04/2023]
Abstract
Alternative pre-mRNA splicing plays key roles in determining tissue- and species-specific cell differentiation as well as in the onset of hereditary disease and cancer, being controlled by multiple post- and co-transcriptional regulatory mechanisms. We report here that airborne particulate matter, resulting from industrial pollution, inhibits expression and specifically affects alternative splicing at the 5' untranslated region of the mRNA encoding the bone morphogenetic protein BMP4 in human colon cells in culture. These effects are consistent with a previously reported role for BMP4 in preventing colon cancer development, suggesting that ingestion of particulate matter could contribute to the onset of colon cell proliferation. We also show that the underlying mechanism might involve changes in transcriptional elongation. This is the first study to demonstrate that particulate matter causes non-pleiotropic changes in alternative splicing.
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Affiliation(s)
- Valeria Buggiano
- Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Ezequiel Petrillo
- Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Mariano Alló
- Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Celina Lafaille
- Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - María Ana Redal
- Instituto de Ciencias Básicas y Medicina Experimental, Hospital Italiano de Buenos Aires, Argentina
| | - Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh I Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Manuel J Muñoz
- Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina.
| | - Alberto R Kornblihtt
- Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina.
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13
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Alghamdi MA, Alam MS, Stark C, Mohammed N, Harrison RM, Shamy M, Khoder MI, Shabbaj II, Göen T. Urinary metabolites of polycyclic aromatic hydrocarbons in Saudi Arabian schoolchildren in relation to sources of exposure. Environ Res 2015; 140:495-501. [PMID: 25996626 DOI: 10.1016/j.envres.2015.04.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 01/13/2015] [Revised: 04/29/2015] [Accepted: 04/30/2015] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons contain a number of known carcinogenic compounds, and urinary biomarkers have been widely used as a measure of exposure but quantitative relationships with exposure variables have proved elusive. This study aimed to quantify the relationship between exposures to phenanthrene and pyrene from atmospheric and dietary sources with the excretion of 1-hydroxypyrene and hydroxyphenanthrenes in urine as biomarkers of exposure. The study population consisted of 204 male schoolchildren attending three schools in different parts of Jeddah, Saudi Arabia who provided urine samples on each of three consecutive days. Outdoor air measurements of polycyclic aromatic hydrocarbons were made at the schools and the children provided information on diet, exposure to environmental tobacco smoke and incense, and various lifestyle factors through a questionnaire. Mixed models with random effects for subjects nested within site were fitted in order to examine the relationship between exposure variables and urinary PAH metabolites. A unit increase (1 ng m(-3)) in ambient pyrene (particulate plus gaseous phase) was associated with a 3.5% (95% CI: 1.01%, 5.13%) increase in urinary 1-hydroxypyrene concentration. A unit increase in ambient phenanthrene was associated with a 1.01% (95% CI: 0.03%, 2.02%) increase in total hydroxyphenanthrene concentrations. Consumption of chargrilled food increased the 1-hydroxypyrene and hydroxyphenanthrene concentrations by 24% (95% CI: 11%, 37%) and 17% (95% CI: 8%, 26%) respectively. We did not find evidence of association for environmental tobacco smoke exposure or incense burning. It is concluded that both respiratory exposure and consumption of chargrilled food are considerable sources of PAH exposure in this population as reflected by concentrations of urinary biomarkers.
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Affiliation(s)
- Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Mohammed S Alam
- Division of Environmental Health and Risk Management School of Geography, Earth & Environmental Sciences University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Christopher Stark
- Division of Environmental Health and Risk Management School of Geography, Earth & Environmental Sciences University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Nuredin Mohammed
- Institute of Occupational and Environmental Medicine University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Roy M Harrison
- Department of Environmental Sciences, Faculty of Meteorology Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Division of Environmental Health and Risk Management School of Geography, Earth & Environmental Sciences University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Mamdouh I Khoder
- Department of Environmental Sciences, Faculty of Meteorology Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Ibrahim I Shabbaj
- Department of Environmental Sciences, Faculty of Meteorology Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Thomas Göen
- Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
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Alghamdi MA, Alam MS, Yin J, Stark C, Jang E, Harrison RM, Shamy M, Khoder MI, Shabbaj II. Receptor modelling study of polycyclic aromatic hydrocarbons in Jeddah, Saudi Arabia. Sci Total Environ 2015; 506-507:401-408. [PMID: 25460975 DOI: 10.1016/j.scitotenv.2014.10.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 06/27/2014] [Revised: 09/23/2014] [Accepted: 10/17/2014] [Indexed: 06/04/2023]
Abstract
Measurements of 14 polycyclic aromatic hydrocarbons (PAH) have been made in Jeddah, Saudi Arabia, with a view to establishing the concentrations in this major city, and quantifying the contributions of major sources. Particulate and vapour forms have been sampled and analysed separately. The concentrations are compared to measurements from other sites in the Middle Eastern region and are towards the lower end of the range, being far lower than concentrations reported from Riyadh (Saudi Arabia), Assiut (Egypt) and Tehran (Iran) but broadly similar to those measured in Damascus (Syria) and higher than those measured in Kuwait. The partitioning between vapour and particle phases is similar to that in data from Egypt and China, but with many compounds showing a higher particle-associated percentage than in Birmingham (UK) possibly reflecting a higher concentration of airborne particulate matter in the former countries. Concentrations in Jeddah were significantly higher at a site close to the oil refinery and a site close to a major ring road than at a suburban site to the north of the city. Application of positive matrix factorisation to the pooled data elicited three factors accounting respectively for 17%, 33% and 50% of the measured sum of PAH and these are interpreted as arising from gasoline vehicles, industrial sources, particularly the oil refinery, and to diesel/fuel oil combustion.
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Affiliation(s)
- Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed S Alam
- Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Jianxin Yin
- Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Christopher Stark
- Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Eunhwa Jang
- Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Roy M Harrison
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh I Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ibrahim I Shabbaj
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
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Brocato J, Hernandez M, Laulicht F, Sun H, Shamy M, Alghamdi MA, Khoder MI, Kluz T, Chen LC, Costa M. In Vivo Exposures to Particulate Matter Collected from Saudi Arabia or Nickel Chloride Display Similar Dysregulation of Metabolic Syndrome Genes. J Toxicol Environ Health A 2015; 78:1421-36. [PMID: 26692068 PMCID: PMC4709028 DOI: 10.1080/15287394.2015.1095689] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Particulate matter (PM) exposures have been linked to mortality, low birth weights, hospital admissions, and diseases associated with metabolic syndrome, including diabetes mellitus, cardiovascular disease, and obesity. In a previous in vitro and in vivo study, data demonstrated that PM(10μm) collected from Jeddah, Saudi Arabia (PMSA), altered expression of genes involved in lipid and cholesterol metabolism, as well as many other genes associated with metabolic disorders. PMSA contains a relatively high concentration of nickel (Ni), known to be linked to several metabolic disorders. In order to evaluate whether Ni and PM exposures induce similar gene expression profiles, mice were exposed to 100 μg/50 μl PM(SA) (PM-100), 50 μg/50 μl nickel chloride (Ni-50), or 100 μg/50 μl nickel chloride (Ni-100) twice per week for 4 wk and hepatic gene expression changes were determined. Ultimately, 55 of the same genes were altered in all 3 exposures. However, where the two Ni groups differed markedly was in the regulation (up or down) of these genes. Ni-100 and PM-100 groups displayed similar regulations, whereby 104 of the 107 genes were similarly modulated. Many of the 107 genes are involved in metabolic syndrome and include ALDH4A1, BCO2, CYP1A, CYP2U, TOP2A. In addition, the top affected pathways, such as fatty acid α-oxidation, and lipid and carbohydrate metabolism, are involved in metabolic diseases. Most notably, the top diseased outcome affected by these changes in gene expression was cardiovascular disease. Given these data, it appears that Ni and PM(SA) exposures display similar gene expression profiles, modulating the expression of genes involved in metabolic disorders.
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Affiliation(s)
- Jason Brocato
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Michelle Hernandez
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Freda Laulicht
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Hong Sun
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour A. Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh I. Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Thomas Kluz
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Lung-Chi Chen
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
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16
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Trasande L, Urbina EM, Khoder M, Alghamdi M, Shabaj I, Alam MS, Harrison RM, Shamy M. Polycyclic aromatic hydrocarbons, brachial artery distensibility and blood pressure among children residing near an oil refinery. Environ Res 2015; 136:133-40. [PMID: 25460629 PMCID: PMC5274701 DOI: 10.1016/j.envres.2014.08.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 08/12/2014] [Accepted: 08/15/2014] [Indexed: 05/21/2023]
Abstract
BACKGROUND Polycyclic aromatic hydrocarbons (PAH) are produced by the burning and processing of fuel oils, and have been associated with oxidant stress, insulin resistance and hypertension in adults. Few studies have examined whether adolescents are susceptible to cardiovascular effects of PAHs. OBJECTIVE To study associations of PAH exposure with blood pressure (BP) and brachial artery distensibility (BAD), an early marker of arterial wall stiffness, in young boys attending three schools in Jeddah, Saudi Arabia in varying proximity to an oil refinery. METHODS Air samples collected from the three schools were analyzed for PAHs. PAH metabolites (total hydroxyphenanthrenes and 1-hydroxypyrene) were measured in urine samples from 184 adolescent males, in whom anthropometrics, heart rate, pulse pressure, brachial artery distensibility and blood pressure were measured. Descriptive, bivariate and multivariable analyses were performed to assess relationships of school location and urinary PAH metabolites with cardiovascular measures. RESULTS Total suspended matter was significantly higher (444 ± 143 μg/m(3)) at the school near the refinery compared to a school located near a ring road (395 ± 65 μg/m(3)) and a school located away from vehicle traffic (232 ± 137 μg/m(3)), as were PAHs. Systolic (0.47 S D units, p = 0.006) and diastolic (0.53 SD units, p < 0.001) BP Z-scores were highest at the school near the refinery, with a 4.36-fold increase in prehypertension (p = 0.001), controlling for confounders. No differences in pulse pressure, BAD and heart rate were noted in relationship to school location. Urinary total hydroxyphenanthrenes and 1-hydroxypyrene were not associated with cardiovascular outcomes. CONCLUSIONS Proximity to an oil refinery in Saudi Arabia is associated with prehypertension and increases in PAH and particulate matter exposures. Further study including insulin resistance measurements, better control for confounding, and longitudinal measurement is indicated.
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Affiliation(s)
- Leonardo Trasande
- Departments of Pediatrics, New York University School of Medicine, New York, NY, USA; Environmental Medicine, New York University School of Medicine, New York, NY, USA; Population Health, New York University School of Medicine, New York, NY, USA; New York University Wagner School of Public Service, New York, NY, USA; NYU Steinhardt School of Culture, Education and Human Development, Department of Nutrition, Food & Public Health, New York, NY, USA; Global Institute of Public Health, New York University, New York, NY, USA.
| | - Elaine M Urbina
- Division of Preventive Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Mamdouh Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ibrahim Shabaj
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed S Alam
- Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences. University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Roy M Harrison
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences. University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
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Brocato J, Fang L, Chervona Y, Chen D, Kiok K, Sun H, Tseng HC, Xu D, Shamy M, Jin C, Costa M. Arsenic induces polyadenylation of canonical histone mRNA by down-regulating stem-loop-binding protein gene expression. J Biol Chem 2014; 289:31751-31764. [PMID: 25266719 DOI: 10.1074/jbc.m114.591883] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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: 11/06/2022] Open
Abstract
The replication-dependent histone genes are the only metazoan genes whose messenger RNA (mRNA) does not terminate with a poly(A) tail at the 3'-end. Instead, the histone mRNAs display a stem-loop structure at their 3'-end. Stem-loop-binding protein (SLBP) binds the stem-loop and regulates canonical histone mRNA metabolism. Here we report that exposure to arsenic, a carcinogenic metal, decreased cellular levels of SLBP by inducing its proteasomal degradation and inhibiting SLBP transcription via epigenetic mechanisms. Notably, arsenic exposure dramatically increased polyadenylation of canonical histone H3.1 mRNA possibly through down-regulation of SLBP expression. The polyadenylated H3.1 mRNA induced by arsenic was not susceptible to normal degradation that occurs at the end of S phase, resulting in continued presence into mitosis, increased total H3.1 mRNA, and increased H3 protein levels. Excess expression of canonical histones have been shown to increase sensitivity to DNA damage as well as increase the frequency of missing chromosomes and induce genomic instability. Thus, polyadenylation of canonical histone mRNA following arsenic exposure may contribute to arsenic-induced carcinogenesis.
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Affiliation(s)
- Jason Brocato
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Lei Fang
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Yana Chervona
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Danqi Chen
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Kathrin Kiok
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Hong Sun
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Hsiang-Chi Tseng
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Dazhong Xu
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment, and Arid Land Agriculture, King Abdulaziz University, Jeddah 21432, Saudi Arabia
| | - Chunyuan Jin
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and.
| | - Max Costa
- Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016 and
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18
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Alghamdi MA, Shamy M, Redal MA, Khoder M, Awad AH, Elserougy S. Microorganisms associated particulate matter: a preliminary study. Sci Total Environ 2014; 479-480:109-16. [PMID: 24561289 DOI: 10.1016/j.scitotenv.2014.02.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [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: 12/25/2013] [Revised: 02/01/2014] [Accepted: 02/02/2014] [Indexed: 05/04/2023]
Abstract
This study aims to determine the microbiological quality of particulate matter (PM) in an urban area in Jeddah, Saudi Arabia, during December 2012 to April 2013. This was achieved by the determination of airborne bacteria, fungi, and actinobacteria associated PM10 and PM2.5, as well as their relationships with gaseous pollutants, O3, SO2 and NO2, and meteorological factors (T°C, RH% and Ws). High volume samplers with PM10 and PM2.5 selective sizes, and glass fiber filters were used to collect PM10 and PM2.5, respectively. The filters were suspended in buffer phosphate and aliquots were spread plated onto the surfaces of trypticase soy agar, malt extract agar, and starch casein agar media for counting of bacteria, fungi and actinobacteria-associated PM, respectively. PM10 and PM2.5 concentrations averaged 159.9 μg/m(3) and 60 μg/m(3), respectively, with the ratio of PM2.5/PM10 averaged ~0.4. The concentrations of O3, SO2 and NO2 averaged 35.73 μg/m(3), 38.1μg/m(3) and 52.5 μg/m(3), respectively. Fungi and actinobacteria associated PM were found in lower concentrations than bacteria. The sum of microbial loads was higher in PM10 than PM2.5, however a significant correlation (r=0.57, P ≤ 0.05) was found between the sum of microbial loads associated PM10 and PM2.5. Aspergillus fumigatus and Aspergillus niger were the common fungal types associated PM. Temperature significantly correlated with both PM10 (r=0.44), and PM2.5 (r=0.5). Significant negative correlations were found between O3 and PM2.5 (r=-0.47), and between SO2 with PM10 (r=-0.48). Wind speed positively correlated with airborne microorganisms associated PM. The regression model showed that the inverse PM2.5 concentration (1/PM2.5) was a significant determinant of fungal count associated PM. Chemical processes and environmental factors could affect properties of PM and in turn its biological quality.
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Affiliation(s)
- Mansour A Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia
| | - Maria Ana Redal
- Unidad de Medicina Molecular y Genómica del Instituto de Ciencias Básicas y Medicina Experimental, Escuela de Medicina del Hospital Italiano de Buenos Aires, Argentina
| | - Mamdouh Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia; Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdel Hameed Awad
- Department of Environmental and Health Research, The Custodian of the Two Holy Mosques Institute for Hajj and Umrah Research, Umm Al Qura University, P.O. Box 6287, Makkah 21955, Saudi Arabia.
| | - Safaa Elserougy
- Department of Environmental and Occupational Medicine, National Research Centre, Egypt
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Brocato J, Sun H, Shamy M, Kluz T, Alghamdi MA, Khoder MI, Chen LC, Costa M. Particulate matter from Saudi Arabia induces genes involved in inflammation, metabolic syndrome and atherosclerosis. J Toxicol Environ Health A 2014; 77:751-66. [PMID: 24839929 PMCID: PMC4233653 DOI: 10.1080/15287394.2014.892446] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Airborne particulate matter (PM) exposure is a major environmental health concern and is linked to metabolic disorders, such as cardiovascular diseases (CVD) and diabetes, which are on the rise in the Kingdom of Saudi Arabia. This study investigated changes in mouse lung gene expression produced by administration of PM10 collected from Jeddah, Saudi Arabia. FVB/N mice were exposed to 100 μg PM10 or water by aspiration and euthanized 24 h later. The bronchoalveolar lavage fluid (BALF) was collected and analyzed for neutrophil concentration and tumor necrosis factor (TNF)-α and interleukin (IL)-6 levels. RNA was extracted from lungs and whole transcript was analyzed using Affymetrix Mouse Gene 1.0 ST Array. Mice exposed to PM10 displayed an increase in neutrophil concentration and elevated TNF-α and IL-6 levels. Gene expression analysis revealed that mice exposed to PM10 displayed 202 genes that were significantly upregulated and 40 genes that were significantly downregulated. PM10 induced genes involved in inflammation, cholesterol and lipid metabolism, and atherosclerosis. This is the first study to demonstrate that Saudi Arabia PM10 increases in vivo expression of genes located in pathways associated with diseases involving metabolic syndrome and atherosclerosis.
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Affiliation(s)
- Jason Brocato
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Hong Sun
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Thomas Kluz
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Mansour A. Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mamdouh I. Khoder
- Department of Environmental Sciences, Faculty of Meteorology, Environmental and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Lung-Chi Chen
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, NY, NY, 10016 USA
- Corresponding author: Max Costa, 57 Old Forge Rd., Tuxedo, NY, 10987, Phone number: 845.731.3515,
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Abstract
Insoluble nickel compounds are well-established human carcinogens. Occupational exposure to these compounds leads to increased incidence of lung and nasal cancer in nickel refinery workers. Apart from its weak mutagenic activity and hypoxia mimicking effect there is mounting experimental evidence indicating that epigenetic alteration plays an important role in nickel-induced carcinogenesis. Multiple epigenetic mechanisms have been identified to mediate nickel-induced gene silencing. Nickel ion is able to induce heterochromatinization by binding to DNA-histone complexes and initiating chromatin condensation. The enzymes required for establishing or removing epigenetic marks can be targeted by nickel, leading to altered DNA methylation and histone modification landscapes. The current review will focus on the epigenetic changes that contribute to nickel-induced gene silencing.
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Affiliation(s)
- Hong Sun
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY 10987, USA.
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY 10987, USA.
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21
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Arita A, Muñoz A, Chervona Y, Niu J, Qu Q, Zhao N, Ruan Y, Kiok K, Kluz T, Sun H, Clancy HA, Shamy M, Costa M. Gene expression profiles in peripheral blood mononuclear cells of Chinese nickel refinery workers with high exposures to nickel and control subjects. Cancer Epidemiol Biomarkers Prev 2013; 22:261-9. [PMID: 23195993 PMCID: PMC3565097 DOI: 10.1158/1055-9965.epi-12-1011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Occupational exposure to nickel (Ni) is associated with an increased risk of lung and nasal cancers. Ni compounds exhibit weak mutagenic activity, alter the cell's epigenetic homeostasis, and activate signaling pathways. However, changes in gene expression associated with Ni exposure have only been investigated in vitro. This study was conducted in a Chinese population to determine whether occupational exposure to Ni was associated with differential gene expression profiles in the peripheral blood mononuclear cells (PBMC) of Ni-refinery workers when compared with referents. METHODS Eight Ni-refinery workers and ten referents were selected. PBMC RNA was extracted and gene expression profiling was conducted using Affymetrix exon arrays. Differentially expressed genes (DEG) between both groups were identified in a global analysis. RESULTS There were a total of 2,756 DEGs in the Ni-refinery workers relative to the referents [false discovery rate (FDR) adjusted P < 0.05] with 770 upregulated genes and 1,986 downregulated genes. DNA repair and epigenetic genes were significantly overrepresented (P < 0.0002) among the DEGs. Of 31 DNA repair genes, 29 were repressed in the Ni-refinery workers and 2 were overexpressed. Of the 16 epigenetic genes, 12 were repressed in the Ni-refinery workers and 4 were overexpressed. CONCLUSIONS The results of this study indicate that occupational exposure to Ni is associated with alterations in gene expression profiles in PBMCs of subjects. IMPACT Gene expression may be useful in identifying patterns of deregulation that precede clinical identification of Ni-induced cancers.
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Affiliation(s)
- Adriana Arita
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Alexandra Muñoz
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Yana Chervona
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Jingping Niu
- Lanzhou University School of Public Health, Lanzhou, China
| | - Qingshan Qu
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Najuan Zhao
- Lanzhou University School of Public Health, Lanzhou, China
| | - Ye Ruan
- Lanzhou University School of Public Health, Lanzhou, China
| | - Kathrin Kiok
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Thomas Kluz
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Hong Sun
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Hailey A. Clancy
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
| | - Magdy Shamy
- King Abdulaziz University, Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, Jeddah, Saudi Arabia
| | - Max Costa
- New York University School of Medicine, Nelson Institute of Environmental Medicine, 57 Old Forge Road, NY 10987
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Sun H, Shamy M, Kluz T, Muñoz AB, Zhong M, Laulicht F, Alghamdi MA, Khoder MI, Chen LC, Costa M. Gene expression profiling and pathway analysis of human bronchial epithelial cells exposed to airborne particulate matter collected from Saudi Arabia. Toxicol Appl Pharmacol 2012; 265:147-57. [PMID: 23085030 DOI: 10.1016/j.taap.2012.10.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 10/04/2012] [Accepted: 10/09/2012] [Indexed: 12/31/2022]
Abstract
Epidemiological studies have established a positive correlation between human mortality and increased concentration of airborne particulate matters (PM). However, the mechanisms underlying PM related human diseases, as well as the molecules and pathways mediating the cellular response to PM, are not fully understood. This study aims to investigate the global gene expression changes in human cells exposed to PM(10) and to identify genes and pathways that may contribute to PM related adverse health effects. Human bronchial epithelial cells were exposed to PM(10) collected from Saudi Arabia for 1 or 4 days, and whole transcript expression was profiled using the GeneChip human gene 1.0 ST array. A total of 140 and 230 genes were identified that significantly changed more than 1.5 fold after PM(10) exposure for 1 or 4 days, respectively. Ingenuity Pathway Analysis revealed that different exposure durations triggered distinct pathways. Genes involved in NRF2-mediated response to oxidative stress were up-regulated after 1 day exposure. In contrast, cells exposed for 4 days exhibited significant changes in genes related to cholesterol and lipid synthesis pathways. These observed changes in cellular oxidative stress and lipid synthesis might contribute to PM related respiratory and cardiovascular disease.
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Affiliation(s)
- Hong Sun
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY 10987, USA
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Khodeir M, Shamy M, Alghamdi M, Zhong M, Sun H, Costa M, Chen LC, Maciejczyk P. Source Apportionment and Elemental Composition of PM2.5 and PM10 in Jeddah City, Saudi Arabia. Atmos Pollut Res 2012; 3:331-340. [PMID: 24634602 PMCID: PMC3951168 DOI: 10.5094/apr.2012.037] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This paper presents the first comprehensive investigation of PM2.5 and PM10 composition and sources in Saudi Arabia. We conducted a multi-week multiple sites sampling campaign in Jeddah between June and September, 2011, and analyzed samples by XRF. The overall mean mass concentration was 28.4 ± 25.4 μg/m3 for PM2.5 and 87.3 ± 47.3 μg/m3 for PM10, with significant temporal and spatial variability. The average ratio of PM2.5/PM10 was 0.33. Chemical composition data were modeled using factor analysis with varimax orthogonal rotation to determine five and four particle source categories contributing significant amount of for PM2.5 and PM10 mass, respectively. In both PM2.5 and PM10 sources were (1) heavy oil combustion characterized by high Ni and V; (2) resuspended soil characterized by high concentrations of Ca, Fe, Al, and Si; and (3) marine aerosol. The two other sources in PM2.5 were (4) Cu/Zn source; (5) traffic source identified by presence of Pb, Br, and Se; while in PM10 it was a mixed industrial source. To estimate the mass contributions of each individual source category, the CAPs mass concentration was regressed against the factor scores. Cumulatively, resuspended soil and oil combustion contributed 77 and 82% mass of PM2.5 and PM10, respectively.
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Affiliation(s)
- Mamdouh Khodeir
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah Saudi Arabia
| | - Mansour Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah Saudi Arabia
| | - Mianhua Zhong
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Hong Sun
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Lung-Chi Chen
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
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Abstract
Chemical interaction is of major concern in the assessment of risk by regulatory agencies. In the present study, treatment of human lymphocytes with NiSO4 (1-100 microM) or UV-light (200, 1000 ergs/mm2) induced micronuclei (MN) in a dose-dependent fashion. Statistical analysis of the interaction factor (IF), showed that combined treatments of Ni(II) (1-100 microM) with UV-light (200, or 1000 ergs/mm2) interacted antagonistically for the induction of MN. Recently we reported that Ni(II) (0.5-10 microM) with UV-light (200 or 1000 ergs/mm2) or Cr(VI) or X-rays interacted antagonistically for the induction of sister chromatid exchanges (SCE), in peripheral human lymphocytes. These observations suggest that nickel present in complex mixtures may reduce the response, even in the presence of strong MN or SCE inducers, and may lead, therefore, to an underestimate of chemical exposure as assessed by these assays. Furthermore, metals affecting certain microsteps in the process of DNA replication or repair (e.g., histones, polymerases, ligases) may have similar antagonistic effects. Further studies are therefore recommended.
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Affiliation(s)
- S P Katsifis
- Institute of Environmental Medicine, New York University Medical Center, 550 First Ave, New York, NY 10016, USA.
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25
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Shamy M. The hospital practitioner grade. West J Med 1980. [DOI: 10.1136/bmj.281.6250.1289-a] [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: 11/04/2022]
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