Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer

Dim light melatonin onset (DLMO) is the most reliable measure of human central circadian timing. Its modulation by light exposure and chronotype has been scarcely approached. We evaluated the impact of light changes on the interaction between melatonin, sleep, and chronotype in university students (...

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Detalhes bibliográficos
Autores: Silva Barbato, Ana Celia, Simón, Diego, Pannunzio, Bruno, Casaravilla, Cecilia, Díaz, Álvaro, Tassino, Bettina
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Uruguay
Recursos:Universidad de la República
Repositorio:COLIBRI
Idioma:inglés
OAI Identifier:oai:colibri.udelar.edu.uy:20.500.12008/28624
Acesso em linha:https://hdl.handle.net/20.500.12008/28624
Access Level:acceso abierto
Palavra-chave:Antarctica
DLMO
MEQ
Circadian preferences
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dc.title.none.fl_str_mv Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
title Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
spellingShingle Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
Silva Barbato, Ana Celia
Antarctica
DLMO
MEQ
Circadian preferences
title_short Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
title_full Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
title_fullStr Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
title_full_unstemmed Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
title_sort Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer
dc.creator.none.fl_str_mv Silva Barbato, Ana Celia
Simón, Diego
Pannunzio, Bruno
Casaravilla, Cecilia
Díaz, Álvaro
Tassino, Bettina
author Silva Barbato, Ana Celia
author_facet Silva Barbato, Ana Celia
Simón, Diego
Pannunzio, Bruno
Casaravilla, Cecilia
Díaz, Álvaro
Tassino, Bettina
author_role author
author2 Simón, Diego
Pannunzio, Bruno
Casaravilla, Cecilia
Díaz, Álvaro
Tassino, Bettina
author2_role author
author
author
author
author
dc.contributor.filiacion.none.fl_str_mv Silva Barbato Ana Celia, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.
Simón Diego, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología
Pannunzio Bruno, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología
Casaravilla Cecilia, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Química Biológica
Díaz Álvaro, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Química Biológica
Tassino Bettina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.
dc.subject.es.fl_str_mv Antarctica
DLMO
MEQ
topic Antarctica
DLMO
MEQ
Circadian preferences
dc.subject.en.fl_str_mv Circadian preferences
description Dim light melatonin onset (DLMO) is the most reliable measure of human central circadian timing. Its modulation by light exposure and chronotype has been scarcely approached. We evaluated the impact of light changes on the interaction between melatonin, sleep, and chronotype in university students (n = 12) between the Antarctic summer (10 days) and the autumn equinox in Montevideo, Uruguay (10 days). Circadian preferences were tested by validated questionnaires. A Morningness–Eveningness Questionnaire average value (47 ± 8.01) was used to separate late and early participants. Daylight exposure (measured by actimetry) was significantly higher in Antarctica versus Montevideo in both sensitive time windows (the morning phase-advancing and the evening phase-delaying). Melatonin was measured in hourly saliva samples (18–24 h) collected in dim light conditions (<30 lx) during the last night of each study period. Early and late participants were exposed to similar amounts of light in both sites and time windows, but only early participants were significantly more exposed during the late evening in Antarctica. Late participants advanced their DLMO with no changes in sleep onset time in Antarctica, while early participants delayed their DLMO and sleep onset time. This different susceptibility to respond to light may be explained by a subtle difference in evening light exposure between chronotypes.
publishDate 2019
dc.date.issued.none.fl_str_mv 2019
dc.date.accessioned.none.fl_str_mv 2021-07-21T14:58:48Z
dc.date.available.none.fl_str_mv 2021-07-21T14:58:48Z
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
format article
status_str publishedVersion
dc.identifier.citation.es.fl_str_mv Silva Barbato, A, Simón, D, Pannunzio, B, y otros "Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer". Clocks & Sleep. [en línea] 2019, 1(3): 352-366. 15 h. DOI: 10.3390/clockssleep1030029
dc.identifier.issn.none.fl_str_mv 2624-5175
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12008/28624
dc.identifier.doi.none.fl_str_mv 10.3390/clockssleep1030029
identifier_str_mv Silva Barbato, A, Simón, D, Pannunzio, B, y otros "Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer". Clocks & Sleep. [en línea] 2019, 1(3): 352-366. 15 h. DOI: 10.3390/clockssleep1030029
2624-5175
10.3390/clockssleep1030029
url https://hdl.handle.net/20.500.12008/28624
dc.language.iso.none.fl_str_mv en
eng
language_invalid_str_mv en
language eng
dc.relation.none.fl_str_mv Clocks & Sleep, 2019, 1(3): 352-366
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eu_rights_str_mv openAccess
rights_invalid_str_mv Licencia Creative Commons Atribución (CC - By 4.0)
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instacron:Universidad de la República
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instacron_str Universidad de la República
institution Universidad de la República
reponame_str COLIBRI
collection COLIBRI
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spelling Silva Barbato Ana Celia, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.Simón Diego, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de BiologíaPannunzio Bruno, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de BiologíaCasaravilla Cecilia, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Química BiológicaDíaz Álvaro, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Química BiológicaTassino Bettina, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología.2021-07-21T14:58:48Z2021-07-21T14:58:48Z2019Silva Barbato, A, Simón, D, Pannunzio, B, y otros "Chronotype-dependent changes in sleep habits associated with dim light melatonin onset in the Antarctic summer". Clocks & Sleep. [en línea] 2019, 1(3): 352-366. 15 h. DOI: 10.3390/clockssleep10300292624-5175https://hdl.handle.net/20.500.12008/2862410.3390/clockssleep1030029Dim light melatonin onset (DLMO) is the most reliable measure of human central circadian timing. Its modulation by light exposure and chronotype has been scarcely approached. We evaluated the impact of light changes on the interaction between melatonin, sleep, and chronotype in university students (n = 12) between the Antarctic summer (10 days) and the autumn equinox in Montevideo, Uruguay (10 days). Circadian preferences were tested by validated questionnaires. A Morningness–Eveningness Questionnaire average value (47 ± 8.01) was used to separate late and early participants. Daylight exposure (measured by actimetry) was significantly higher in Antarctica versus Montevideo in both sensitive time windows (the morning phase-advancing and the evening phase-delaying). Melatonin was measured in hourly saliva samples (18–24 h) collected in dim light conditions (<30 lx) during the last night of each study period. Early and late participants were exposed to similar amounts of light in both sites and time windows, but only early participants were significantly more exposed during the late evening in Antarctica. Late participants advanced their DLMO with no changes in sleep onset time in Antarctica, while early participants delayed their DLMO and sleep onset time. This different susceptibility to respond to light may be explained by a subtle difference in evening light exposure between chronotypes.Submitted by Verdun Juan Pablo (jverdun@fcien.edu.uy) on 2021-07-08T13:56:30Z No. of bitstreams: 2 license_rdf: 19875 bytes, checksum: 9fdbed07f52437945402c4e70fa4773e (MD5) 10.3390clockssleep1030029.pdf: 1713497 bytes, checksum: 92ba419f51bd6e36c9b55dec034b491b (MD5)Approved for entry into archive by Faget Cecilia (lfaget@fcien.edu.uy) on 2021-07-21T14:52:08Z (GMT) No. of bitstreams: 2 license_rdf: 19875 bytes, checksum: 9fdbed07f52437945402c4e70fa4773e (MD5) 10.3390clockssleep1030029.pdf: 1713497 bytes, checksum: 92ba419f51bd6e36c9b55dec034b491b (MD5)Made available in DSpace by Luna Fabiana (fabiana.luna@seciu.edu.uy) on 2021-07-21T14:58:48Z (GMT). No. of bitstreams: 2 license_rdf: 19875 bytes, checksum: 9fdbed07f52437945402c4e70fa4773e (MD5) 10.3390clockssleep1030029.pdf: 1713497 bytes, checksum: 92ba419f51bd6e36c9b55dec034b491b (MD5) Previous issue date: 201915 h.application/pdfenengMDPIClocks & Sleep, 2019, 1(3): 352-366Las 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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públicahttps://udelar.edu.uy/https://www.colibri.udelar.edu.uy/oai/requestkarina.camps@seciu.edu.uyUruguayopendoar:47712022-06-02T19:25:26COLIBRI - Universidad de la Repúblicafalse
score 14.712934

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