1. Blood Metal Levels and Amyotrophic Lateral Sclerosis Risk: A Prospective Cohort
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Broberg, Karin E., Kippler, Maria J., Veldink, Jan Herman, Van Den Berg, Leonard H., Middleton, Lefkos T., Travis, Ruth C., Bergmann, Manuela M., Mancini, Francesca Romana, Katzke, Verena Andrea, Agudo, Antonio T., Gómez, Jesús Humberto, Rodríguez-Barranco, Miguel A., Trichopoulou, Antonia D., Vermeulen, Roel C.H., Peters, Susan, Broberg, Karin, Gallo, Valentina, Levi, Michael, Kippler, Maria, Vineis, Paolo, Veldink, Jan, Berg, Leonard, Middleton, Lefkos, Travis, Ruth, Bergmann, Manuela, Palli, Domenico, Grioni, Sara, Tumino, Rosario, Elbaz, Alexis, Vlaar, Tim, Mancini, Francesca, Kühn, Tilman, Katzke, Verena, Agudo, Antonio, Goñi, Fernando, Gómez, Jesús‐humberto, Rodríguez‐barranco, Miguel, Merino, Susana, Barricarte, Aurelio, Trichopoulou, Antonia, Jenab, Mazda, Weiderpass, Elisabete, Vermeulen, Roel, Santé publique France - French National Public Health Agency [Saint-Maurice, France], Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Institut Gustave Roussy (IGR), Centre International de Recherche contre le Cancer - International Agency for Research on Cancer (CIRC - IARC), Organisation Mondiale de la Santé / World Health Organization Office (OMS / WHO), FOOD‐CT‐2005‐513943 Ministry of National Education and Religious Affairs Cancer Research UK, CRUK Wellcome Trust, WT German Cancer Research Center, DKFZ Department of Health, Australian Government Institut National de la Santé et de la Recherche Médicale, Inserm Kræftens Bekæmpelse, DCS Instituto de Salud Carlos III, ISCIII: C03/09 Stichting Diabetes Onderzoek Nederland British Heart Foundation, BHF Norges Forskningsråd QLK4CT199900927 Stroke Association European Commission, EC Deutsche Krebshilfe World Cancer Research Fund, WCRF Kreftforeningen, NCS Medical Research Council, MRC, The EPIC study is funded by a number of grants, however, no funding source had any role in the preparation of this article. The EPIC study was funded by the Europe against Cancer program of the European Commission (SANCO), Italian Association for Research on Cancer, and Italian National Research Council. In addition, the authors thank the following for their financial support: the Environmental Cancer Risk, Nutrition, and Individual Susceptibility Network of Excellence, operating within the European Union Sixth Framework Program, Priority 5: Food Quality and Safety (FOOD‐CT‐2005‐513943), European Community Fifth Framework Program (grant QLK4CT199900927), ISCIII, Red de Centros RCESP (C03/09), Deutsche Krebshilfe, Deutsches Krebsforschungszentrum, German Federal Ministry of Education and Research, Danish Cancer Society, Health Research Fund of the Spanish Ministry of Health, Spanish Regional Governments of Andalucia, Asturias, Basque Country, Murcia, and Navarra, Cancer Research UK, Medical Research Council, UK, Stroke Association, UK, British Heart Foundation, Department of Health, UK, Food Standards Agency, UK, Wellcome Trust, UK, Greek Ministry of Health, Greek Ministry of Education, Italian Association for Research on Cancer, Italian National Research Council, Dutch Ministry of Public Health, Welfare, and Sports, Netherlands Cancer Registry, LK Research Funds, Dutch Prevention Funds, Zorg Onderzoek Nederland, World Cancer Research Fund, Statistics Netherlands, Swedish Cancer, Swedish Scientific Council, Regional Government of Skåne and Västerbotten, Sweden, Norwegian Cancer Society, Research Council of Norway, French League against Cancer, INSERM, Mutuelle Generale l'Education National, and IGR. The EPIC‐Norfolk study (DOI 10.22025/2019.10.105.00004) has received funding from the Medical Research Council (MR/N003284/1 and MC‐UU_12015/1) and Cancer Research UK (C864/A14136)., and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris-Sud - Paris 11 (UP11)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)
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0301 basic medicine ,Adult ,Male ,Risk ,medicine.medical_specialty ,Clinical Neurology ,Gastroenterology ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,LEAD-EXPOSURE ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Research Articles ,POPULATION ,Aged ,Retrospective Studies ,Science & Technology ,Neurology & Neurosurgery ,business.industry ,Amyotrophic Lateral Sclerosis ,Neurosciences ,1103 Clinical Sciences ,Retrospective cohort study ,Odds ratio ,Environmental exposure ,Environmental Exposure ,Mercury ,Middle Aged ,3. Good health ,European Prospective Investigation into Cancer and Nutrition ,030104 developmental biology ,Neurology ,Cohort ,Population study ,Female ,[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,Neurosciences & Neurology ,Neurology (clinical) ,SMOKING ,1109 Neurosciences ,business ,Life Sciences & Biomedicine ,030217 neurology & neurosurgery ,Research Article ,Cohort study - Abstract
International audience; Objective: Metals have been suggested as a risk factor for amyotrophic lateral sclerosis (ALS), but only retrospective studies are available to date. We compared metal levels in prospectively collected blood samples from ALS patients and controls, to explore whether metals are associated with ALS mortality. Methods: A nested ALS case–control study was conducted within the prospective EPIC (European Prospective Investigation into Cancer and Nutrition) cohort. Cases were identified through death certificates. We analyzed metal levels in erythrocyte samples obtained at recruitment, as a biomarker for metal exposure from any source. Arsenic, cadmium, copper, lead, manganese, mercury, selenium, and zinc concentrations were measured by inductively coupled plasma–mass spectrometry. To estimate ALS risk, we applied conditional logistic regression models. Results: The study population comprised 107 cases (65% female) and 319 controls matched for age, sex, and study center. Median time between blood collection and ALS death was 8 years (range = 1–15). Comparing the highest with the lowest tertile, cadmium (odds ratio [OR] = 2.04, 95% confidence interval [CI] = 1.08–3.87) and lead (OR = 1.89, 95% CI = 0.97–3.67) concentrations suggest associations with increased ALS risk. Zinc was associated with a decreased risk (OR = 0.50, 95% CI = 0.27–0.94). Associations for cadmium and lead remained when limiting analyses to noncurrent smokers. Interpretation: This is the first study to compare metal levels before disease onset, minimizing reverse causation. The observed associations suggest that cadmium, lead, and zinc may play a role in ALS etiology. Cadmium and lead possibly act as intermediates on the pathway from smoking to ALS. ANN NEUROL 20209999:n/a–n/a.
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- 2021
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