Burnt sugarcane harvesting - cardiovascular effects on a group of healthy workers, Brazil.
<h4>Background</h4>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.<h4>Design</h4>Panel study to evaluate the effects of burnt sugar...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23029413/?tool=EBI |
| _version_ | 1818344270709391360 |
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| author | Cristiane Maria Galvão Barbosa Mário Terra-Filho André Luis Pereira de Albuquerque Dante Di Giorgi Cesar Grupi Carlos Eduardo Negrão Maria Urbana Pinto Brandão Rondon Daniel Godoy Martinez Tânia Marcourakis Fabiana Almeida dos Santos Alfésio Luís Ferreira Braga Dirce Maria Trevisan Zanetta Ubiratan de Paula Santos |
| author_facet | Cristiane Maria Galvão Barbosa Mário Terra-Filho André Luis Pereira de Albuquerque Dante Di Giorgi Cesar Grupi Carlos Eduardo Negrão Maria Urbana Pinto Brandão Rondon Daniel Godoy Martinez Tânia Marcourakis Fabiana Almeida dos Santos Alfésio Luís Ferreira Braga Dirce Maria Trevisan Zanetta Ubiratan de Paula Santos |
| author_sort | Cristiane Maria Galvão Barbosa |
| collection | DOAJ |
| description | <h4>Background</h4>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.<h4>Design</h4>Panel study to evaluate the effects of burnt sugarcane harvesting on blood markers and on cardiovascular system.<h4>Methods</h4>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.<h4>Results</h4>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.<h4>Conclusion</h4>Work in burnt sugarcane harvesting was associated with changes in blood markers and higher blood pressure, which may be related to autonomic imbalance. |
| first_indexed | 2024-12-13T16:43:49Z |
| format | Article |
| id | doaj.art-edc899bbf42745678c83369ddbc1a391 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-13T16:43:49Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
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| series | PLoS ONE |
| spelling | doaj.art-edc899bbf42745678c83369ddbc1a3912022-12-21T23:38:13ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0179e4614210.1371/journal.pone.0046142Burnt sugarcane harvesting - cardiovascular effects on a group of healthy workers, Brazil.Cristiane Maria Galvão BarbosaMário Terra-FilhoAndré Luis Pereira de AlbuquerqueDante Di GiorgiCesar GrupiCarlos Eduardo NegrãoMaria Urbana Pinto Brandão RondonDaniel Godoy MartinezTânia MarcourakisFabiana Almeida dos SantosAlfésio Luís Ferreira BragaDirce Maria Trevisan ZanettaUbiratan de Paula Santos<h4>Background</h4>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.<h4>Design</h4>Panel study to evaluate the effects of burnt sugarcane harvesting on blood markers and on cardiovascular system.<h4>Methods</h4>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.<h4>Results</h4>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.<h4>Conclusion</h4>Work in burnt sugarcane harvesting was associated with changes in blood markers and higher blood pressure, which may be related to autonomic imbalance.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23029413/?tool=EBI |
| spellingShingle | Cristiane Maria Galvão Barbosa Mário Terra-Filho André Luis Pereira de Albuquerque Dante Di Giorgi Cesar Grupi Carlos Eduardo Negrão Maria Urbana Pinto Brandão Rondon Daniel Godoy Martinez Tânia Marcourakis Fabiana Almeida dos Santos Alfésio Luís Ferreira Braga Dirce Maria Trevisan Zanetta Ubiratan de Paula Santos Burnt sugarcane harvesting - cardiovascular effects on a group of healthy workers, Brazil. PLoS ONE |
| 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 |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23029413/?tool=EBI |
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