Individual light history matters to deal with the Antarctic summer
Resumen:
The efect of light, main zeitgeber of the circadian system, depends on the time of day it is received. A brief trip to the Antarctic summer (ANT) allowed us to explore the impact of a sudden and synchronized increase in light exposure on activity-rest rhythms and sleep patterns of 11 Uruguayan university students, and to assess the signifcance of light history in determining individual circadian phase shift. Measurements collected in the peri-equinox in Montevideo, Uruguay (baseline situation, MVD) and in ANT, included sleep logs, actigraphy, and salivary melatonin to determine dim-light melatonin onset (DLMO), the most reliable marker of circadian phase. The increase in light exposure in ANT with respect to MVD (afecting both light-sensitive windows with opposite efects on the circadian phase) resulted in no net change in DLMO among participants as some participants advanced their DLMO and some others delayed it. The ultimate cause of each participant’s distinctive circadian phase shift relied on the unique change in light exposure each individual was subjected to between their MVD and ANT. This study shows an association between the individual light history and the circadian phase shift.
2023 | |
CSIC: I+D_2016_623 | |
Inglés | |
Universidad de la República | |
COLIBRI | |
https://hdl.handle.net/20.500.12008/43165 | |
Acceso abierto | |
Licencia Creative Commons Atribución (CC - By 4.0) |
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---|---|
author | Castillo Stratta, Julieta |
author2 | Tonon, André C Hidalgo, María Paz Ana Celia, Silva Barbato Tassino, Bettina |
author2_role | author author author author |
author_facet | Castillo Stratta, Julieta Tonon, André C Hidalgo, María Paz Ana Celia, Silva Barbato Tassino, Bettina |
author_role | author |
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collection | COLIBRI |
dc.contributor.filiacion.none.fl_str_mv | Castillo Stratta Julieta, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología. Tonon André C Hidalgo María Paz Ana Celia Silva Barbato, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología. Tassino Bettina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología. |
dc.creator.none.fl_str_mv | Castillo Stratta, Julieta Tonon, André C Hidalgo, María Paz Ana Celia, Silva Barbato Tassino, Bettina |
dc.date.accessioned.none.fl_str_mv | 2024-03-19T12:13:48Z |
dc.date.available.none.fl_str_mv | 2024-03-19T12:13:48Z |
dc.date.issued.none.fl_str_mv | 2023 |
dc.description.abstract.none.fl_txt_mv | The efect of light, main zeitgeber of the circadian system, depends on the time of day it is received. A brief trip to the Antarctic summer (ANT) allowed us to explore the impact of a sudden and synchronized increase in light exposure on activity-rest rhythms and sleep patterns of 11 Uruguayan university students, and to assess the signifcance of light history in determining individual circadian phase shift. Measurements collected in the peri-equinox in Montevideo, Uruguay (baseline situation, MVD) and in ANT, included sleep logs, actigraphy, and salivary melatonin to determine dim-light melatonin onset (DLMO), the most reliable marker of circadian phase. The increase in light exposure in ANT with respect to MVD (afecting both light-sensitive windows with opposite efects on the circadian phase) resulted in no net change in DLMO among participants as some participants advanced their DLMO and some others delayed it. The ultimate cause of each participant’s distinctive circadian phase shift relied on the unique change in light exposure each individual was subjected to between their MVD and ANT. This study shows an association between the individual light history and the circadian phase shift. |
dc.description.sponsorship.none.fl_txt_mv | CSIC: I+D_2016_623 |
dc.format.extent.es.fl_str_mv | 13 h. |
dc.format.mimetype.es.fl_str_mv | application/pdf |
dc.identifier.citation.es.fl_str_mv | Castillo Stratta, J, Tonon, A, Hidalgo, M [y otros autores]. "Individual light history matters to deal with the Antarctic summer". Scientific Reports. [en línea] 2023, 13: 12081. 13 h. DOI: 10.1038/s41598-023-39315-y. |
dc.identifier.doi.none.fl_str_mv | 10.1038/s41598-023-39315-y |
dc.identifier.issn.none.fl_str_mv | 2045-2322 |
dc.identifier.uri.none.fl_str_mv | https://hdl.handle.net/20.500.12008/43165 |
dc.language.iso.none.fl_str_mv | en eng |
dc.publisher.es.fl_str_mv | Nature |
dc.relation.ispartof.es.fl_str_mv | Scientific Reports, 2023, 13: 12081. |
dc.rights.license.none.fl_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess |
dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
dc.title.none.fl_str_mv | Individual light history matters to deal with the Antarctic summer |
dc.type.es.fl_str_mv | Artículo |
dc.type.none.fl_str_mv | info:eu-repo/semantics/article |
dc.type.version.none.fl_str_mv | info:eu-repo/semantics/publishedVersion |
description | The efect of light, main zeitgeber of the circadian system, depends on the time of day it is received. A brief trip to the Antarctic summer (ANT) allowed us to explore the impact of a sudden and synchronized increase in light exposure on activity-rest rhythms and sleep patterns of 11 Uruguayan university students, and to assess the signifcance of light history in determining individual circadian phase shift. Measurements collected in the peri-equinox in Montevideo, Uruguay (baseline situation, MVD) and in ANT, included sleep logs, actigraphy, and salivary melatonin to determine dim-light melatonin onset (DLMO), the most reliable marker of circadian phase. The increase in light exposure in ANT with respect to MVD (afecting both light-sensitive windows with opposite efects on the circadian phase) resulted in no net change in DLMO among participants as some participants advanced their DLMO and some others delayed it. The ultimate cause of each participant’s distinctive circadian phase shift relied on the unique change in light exposure each individual was subjected to between their MVD and ANT. This study shows an association between the individual light history and the circadian phase shift. |
eu_rights_str_mv | openAccess |
format | article |
id | COLIBRI_6855ec938bc2676aff049a827ff1ec39 |
identifier_str_mv | Castillo Stratta, J, Tonon, A, Hidalgo, M [y otros autores]. "Individual light history matters to deal with the Antarctic summer". Scientific Reports. [en línea] 2023, 13: 12081. 13 h. DOI: 10.1038/s41598-023-39315-y. 2045-2322 10.1038/s41598-023-39315-y |
instacron_str | Universidad de la República |
institution | Universidad de la República |
instname_str | Universidad de la República |
language | eng |
language_invalid_str_mv | en |
network_acronym_str | COLIBRI |
network_name_str | COLIBRI |
oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/43165 |
publishDate | 2023 |
reponame_str | COLIBRI |
repository.mail.fl_str_mv | mabel.seroubian@seciu.edu.uy |
repository.name.fl_str_mv | COLIBRI - Universidad de la República |
repository_id_str | 4771 |
rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
spelling | Castillo Stratta Julieta, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.Tonon André CHidalgo María PazAna Celia Silva Barbato, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.Tassino Bettina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.2024-03-19T12:13:48Z2024-03-19T12:13:48Z2023Castillo Stratta, J, Tonon, A, Hidalgo, M [y otros autores]. "Individual light history matters to deal with the Antarctic summer". Scientific Reports. [en línea] 2023, 13: 12081. 13 h. DOI: 10.1038/s41598-023-39315-y.2045-2322https://hdl.handle.net/20.500.12008/4316510.1038/s41598-023-39315-yThe efect of light, main zeitgeber of the circadian system, depends on the time of day it is received. A brief trip to the Antarctic summer (ANT) allowed us to explore the impact of a sudden and synchronized increase in light exposure on activity-rest rhythms and sleep patterns of 11 Uruguayan university students, and to assess the signifcance of light history in determining individual circadian phase shift. Measurements collected in the peri-equinox in Montevideo, Uruguay (baseline situation, MVD) and in ANT, included sleep logs, actigraphy, and salivary melatonin to determine dim-light melatonin onset (DLMO), the most reliable marker of circadian phase. The increase in light exposure in ANT with respect to MVD (afecting both light-sensitive windows with opposite efects on the circadian phase) resulted in no net change in DLMO among participants as some participants advanced their DLMO and some others delayed it. The ultimate cause of each participant’s distinctive circadian phase shift relied on the unique change in light exposure each individual was subjected to between their MVD and ANT. This study shows an association between the individual light history and the circadian phase shift.Submitted by Pintos Natalia (nataliapintosmvd@gmail.com) on 2024-03-15T19:54:51Z No. of bitstreams: 2 license_rdf: 24251 bytes, checksum: 71ed42ef0a0b648670f707320be37b90 (MD5) 10.1038.s41598-023-39315-y.pdf: 1722677 bytes, checksum: bb1cf1ab67a7dd100e89ad1e48027112 (MD5)Approved for entry into archive by Faget Cecilia (lfaget@fcien.edu.uy) on 2024-03-19T12:10:11Z (GMT) No. of bitstreams: 2 license_rdf: 24251 bytes, checksum: 71ed42ef0a0b648670f707320be37b90 (MD5) 10.1038.s41598-023-39315-y.pdf: 1722677 bytes, checksum: bb1cf1ab67a7dd100e89ad1e48027112 (MD5)Made available in DSpace by Luna Fabiana (fabiana.luna@seciu.edu.uy) on 2024-03-19T12:13:48Z (GMT). No. of bitstreams: 2 license_rdf: 24251 bytes, checksum: 71ed42ef0a0b648670f707320be37b90 (MD5) 10.1038.s41598-023-39315-y.pdf: 1722677 bytes, checksum: bb1cf1ab67a7dd100e89ad1e48027112 (MD5) Previous issue date: 2023CSIC: I+D_2016_62313 h.application/pdfenengNatureScientific Reports, 2023, 13: 12081.Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. 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- Universidad de la Repúblicafalse |
spellingShingle | Individual light history matters to deal with the Antarctic summer Castillo Stratta, Julieta |
status_str | publishedVersion |
title | Individual light history matters to deal with the Antarctic summer |
title_full | Individual light history matters to deal with the Antarctic summer |
title_fullStr | Individual light history matters to deal with the Antarctic summer |
title_full_unstemmed | Individual light history matters to deal with the Antarctic summer |
title_short | Individual light history matters to deal with the Antarctic summer |
title_sort | Individual light history matters to deal with the Antarctic summer |
url | https://hdl.handle.net/20.500.12008/43165 |