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Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review

Background and objectives: The incidence of breast cancer worldwide has increased in recent decades, accounting for 1 in 3 neoplasms in women. Besides, nurses are mainly represented by the female collective, most of them, undertaking working conditions with intensive rotative and night shifts due to...

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Autores principales: Fagundo-Rivera, Javier, Gómez-Salgado, Juan, García-Iglesias, Juan Jesús, Gómez-Salgado, Carlos, Camacho-Martín, Selena, Ruiz-Frutos, Carlos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764664/
https://www.ncbi.nlm.nih.gov/pubmed/33321692
http://dx.doi.org/10.3390/medicina56120680
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author Fagundo-Rivera, Javier
Gómez-Salgado, Juan
García-Iglesias, Juan Jesús
Gómez-Salgado, Carlos
Camacho-Martín, Selena
Ruiz-Frutos, Carlos
author_facet Fagundo-Rivera, Javier
Gómez-Salgado, Juan
García-Iglesias, Juan Jesús
Gómez-Salgado, Carlos
Camacho-Martín, Selena
Ruiz-Frutos, Carlos
author_sort Fagundo-Rivera, Javier
collection PubMed
description Background and objectives: The incidence of breast cancer worldwide has increased in recent decades, accounting for 1 in 3 neoplasms in women. Besides, nurses are mainly represented by the female collective, most of them, undertaking working conditions with intensive rotative and night shifts due to the 24-h pace of work of this profession. The objective of this study was to assess the possible relationship between shift work, especially night-time work, and the development of breast cancer among nurses. Materials and Methods: A systematic review of the literature was carried out through the consultation of the following databases: Cochrane Plus Library, PubMed, CINAHL (Cumulative Index to Nursing and Allied Health Literature), Web of Science, ScienceDirect, Scopus, and Dialnet. Records were selected between 2010 and 2020, in Spanish and English, which covered the association between breast cancer diagnosed among nursing professionals and rotating night shifts. Results: A total of 12 studies were identified after critical reading. Most of the studies found an association between breast cancer and consecutive rotating night shifts prolonged over time. Among the associated factors, the alteration of the circadian rhythm influenced the expression of peripheral clock genes, which was the same as reproductive hormones. The risk of breast cancer in nurses increased during early adulthood and after 5 or more years with 6 or more consecutive nights. Conclusions: The different studies of this review show significant associations between breast cancer and prolonged rotating night shifts. Similarly, there is a relationship between the alterations in certain circadian rhythm markers (such as melatonin), epigenetic markers (such as telomeres), and breast cancer that would require more studies in order to corroborate these findings.
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spelling pubmed-77646642020-12-27 Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review Fagundo-Rivera, Javier Gómez-Salgado, Juan García-Iglesias, Juan Jesús Gómez-Salgado, Carlos Camacho-Martín, Selena Ruiz-Frutos, Carlos Medicina (Kaunas) Review Background and objectives: The incidence of breast cancer worldwide has increased in recent decades, accounting for 1 in 3 neoplasms in women. Besides, nurses are mainly represented by the female collective, most of them, undertaking working conditions with intensive rotative and night shifts due to the 24-h pace of work of this profession. The objective of this study was to assess the possible relationship between shift work, especially night-time work, and the development of breast cancer among nurses. Materials and Methods: A systematic review of the literature was carried out through the consultation of the following databases: Cochrane Plus Library, PubMed, CINAHL (Cumulative Index to Nursing and Allied Health Literature), Web of Science, ScienceDirect, Scopus, and Dialnet. Records were selected between 2010 and 2020, in Spanish and English, which covered the association between breast cancer diagnosed among nursing professionals and rotating night shifts. Results: A total of 12 studies were identified after critical reading. Most of the studies found an association between breast cancer and consecutive rotating night shifts prolonged over time. Among the associated factors, the alteration of the circadian rhythm influenced the expression of peripheral clock genes, which was the same as reproductive hormones. The risk of breast cancer in nurses increased during early adulthood and after 5 or more years with 6 or more consecutive nights. Conclusions: The different studies of this review show significant associations between breast cancer and prolonged rotating night shifts. Similarly, there is a relationship between the alterations in certain circadian rhythm markers (such as melatonin), epigenetic markers (such as telomeres), and breast cancer that would require more studies in order to corroborate these findings. MDPI 2020-12-10 /pmc/articles/PMC7764664/ /pubmed/33321692 http://dx.doi.org/10.3390/medicina56120680 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Fagundo-Rivera, Javier
Gómez-Salgado, Juan
García-Iglesias, Juan Jesús
Gómez-Salgado, Carlos
Camacho-Martín, Selena
Ruiz-Frutos, Carlos
Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review
title Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review
title_full Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review
title_fullStr Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review
title_full_unstemmed Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review
title_short Relationship between Night Shifts and Risk of Breast Cancer among Nurses: A Systematic Review
title_sort relationship between night shifts and risk of breast cancer among nurses: a systematic review
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764664/
https://www.ncbi.nlm.nih.gov/pubmed/33321692
http://dx.doi.org/10.3390/medicina56120680
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