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Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil
BACKGROUND: Brazil is the world's largest producer of sugarcane. Harvest is predominantly manual, exposing workers to health risks: intense physical exertion, heat, pollutants from sugarcane burning. DESIGN: Panel study to evaluate the effects of burnt sugarcane harvesting on blood markers and...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3459900/ https://www.ncbi.nlm.nih.gov/pubmed/23029413 http://dx.doi.org/10.1371/journal.pone.0046142 |
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author | Barbosa, Cristiane Maria Galvão Terra-Filho, Mário de Albuquerque, André Luis Pereira Di Giorgi, Dante Grupi, Cesar Negrão, Carlos Eduardo Rondon, Maria Urbana Pinto Brandão Martinez, Daniel Godoy Marcourakis, Tânia dos Santos, Fabiana Almeida Braga, Alfésio Luís Ferreira Zanetta, Dirce Maria Trevisan Santos, Ubiratan de Paula |
author_facet | Barbosa, Cristiane Maria Galvão Terra-Filho, Mário de Albuquerque, André Luis Pereira Di Giorgi, Dante Grupi, Cesar Negrão, Carlos Eduardo Rondon, Maria Urbana Pinto Brandão Martinez, Daniel Godoy Marcourakis, Tânia dos Santos, Fabiana Almeida Braga, Alfésio Luís Ferreira Zanetta, Dirce Maria Trevisan Santos, Ubiratan de Paula |
author_sort | Barbosa, Cristiane Maria Galvão |
collection | PubMed |
description | BACKGROUND: Brazil is the world's largest producer of sugarcane. Harvest is predominantly manual, exposing workers to health risks: intense physical exertion, heat, pollutants from sugarcane burning. DESIGN: Panel study to evaluate the effects of burnt sugarcane harvesting on blood markers and on cardiovascular system. METHODS: Twenty-eight healthy male workers, living in the countryside of Brazil were submitted to blood markers, blood pressure, heart rate variability, cardiopulmonary exercise testing, sympathetic nerve activity evaluation and forearm blood flow measures (venous occlusion plethysmography) during burnt sugarcane harvesting and four months later while they performed other activities in sugar cane culture. RESULTS: Mean participant age was 31±6.3 years, and had worked for 9.8±8.4 years on sugarcane work. Work during the harvest period was associated with higher serum levels of Creatine Kinase – 136.5 U/L (IQR: 108.5–216.0) vs. 104.5 U/L (IQR: 77.5–170.5), (p = 0.001); plasma Malondialdehyde–7.5±1.4 µM/dl vs. 6.9±1.0 µM/dl, (p = 0.058); Glutathione Peroxidase – 55.1±11.8 Ug/Hb vs. 39.5±9.5 Ug/Hb, (p<0.001); Glutathione Transferase– 3.4±1.3 Ug/Hb vs. 3.0±1.3 Ug/Hb, (p = 0.001); and 24-hour systolic blood pressure – 120.1±10.3 mmHg vs. 117.0±10.0 mmHg, (p = 0.034). In cardiopulmonary exercise testing, rest-to-peak diastolic blood pressure increased by 11.12 mmHg and 5.13 mmHg in the harvest and non-harvest period, respectively. A 10 miliseconds reduction in rMSSD and a 10 burst/min increase in sympathetic nerve activity were associated to 2.2 and 1.8 mmHg rises in systolic arterial pressure, respectively. CONCLUSION: Work in burnt sugarcane harvesting was associated with changes in blood markers and higher blood pressure, which may be related to autonomic imbalance. |
format | Online Article Text |
id | pubmed-3459900 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-34599002012-10-01 Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil Barbosa, Cristiane Maria Galvão Terra-Filho, Mário de Albuquerque, André Luis Pereira Di Giorgi, Dante Grupi, Cesar Negrão, Carlos Eduardo Rondon, Maria Urbana Pinto Brandão Martinez, Daniel Godoy Marcourakis, Tânia dos Santos, Fabiana Almeida Braga, Alfésio Luís Ferreira Zanetta, Dirce Maria Trevisan Santos, Ubiratan de Paula PLoS One Research Article BACKGROUND: Brazil is the world's largest producer of sugarcane. Harvest is predominantly manual, exposing workers to health risks: intense physical exertion, heat, pollutants from sugarcane burning. DESIGN: Panel study to evaluate the effects of burnt sugarcane harvesting on blood markers and on cardiovascular system. METHODS: Twenty-eight healthy male workers, living in the countryside of Brazil were submitted to blood markers, blood pressure, heart rate variability, cardiopulmonary exercise testing, sympathetic nerve activity evaluation and forearm blood flow measures (venous occlusion plethysmography) during burnt sugarcane harvesting and four months later while they performed other activities in sugar cane culture. RESULTS: Mean participant age was 31±6.3 years, and had worked for 9.8±8.4 years on sugarcane work. Work during the harvest period was associated with higher serum levels of Creatine Kinase – 136.5 U/L (IQR: 108.5–216.0) vs. 104.5 U/L (IQR: 77.5–170.5), (p = 0.001); plasma Malondialdehyde–7.5±1.4 µM/dl vs. 6.9±1.0 µM/dl, (p = 0.058); Glutathione Peroxidase – 55.1±11.8 Ug/Hb vs. 39.5±9.5 Ug/Hb, (p<0.001); Glutathione Transferase– 3.4±1.3 Ug/Hb vs. 3.0±1.3 Ug/Hb, (p = 0.001); and 24-hour systolic blood pressure – 120.1±10.3 mmHg vs. 117.0±10.0 mmHg, (p = 0.034). In cardiopulmonary exercise testing, rest-to-peak diastolic blood pressure increased by 11.12 mmHg and 5.13 mmHg in the harvest and non-harvest period, respectively. A 10 miliseconds reduction in rMSSD and a 10 burst/min increase in sympathetic nerve activity were associated to 2.2 and 1.8 mmHg rises in systolic arterial pressure, respectively. CONCLUSION: Work in burnt sugarcane harvesting was associated with changes in blood markers and higher blood pressure, which may be related to autonomic imbalance. Public Library of Science 2012-09-27 /pmc/articles/PMC3459900/ /pubmed/23029413 http://dx.doi.org/10.1371/journal.pone.0046142 Text en © 2012 Barbosa et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Barbosa, Cristiane Maria Galvão Terra-Filho, Mário de Albuquerque, André Luis Pereira Di Giorgi, Dante Grupi, Cesar Negrão, Carlos Eduardo Rondon, Maria Urbana Pinto Brandão Martinez, Daniel Godoy Marcourakis, Tânia dos Santos, Fabiana Almeida Braga, Alfésio Luís Ferreira Zanetta, Dirce Maria Trevisan Santos, Ubiratan de Paula Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil |
title | Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil |
title_full | Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil |
title_fullStr | Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil |
title_full_unstemmed | Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil |
title_short | Burnt Sugarcane Harvesting – Cardiovascular Effects on a Group of Healthy Workers, Brazil |
title_sort | burnt sugarcane harvesting – cardiovascular effects on a group of healthy workers, brazil |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3459900/ https://www.ncbi.nlm.nih.gov/pubmed/23029413 http://dx.doi.org/10.1371/journal.pone.0046142 |
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