Individual differences in the amount and timing of salivary melatonin secretion
The aim of this study was to examine individual differences in a large sample of complete melatonin profiles not suppressed by light and search for possible associations between the amount and timing of melatonin secretion and a multitude of lifestyle variables. The melatonin profiles were derived f...
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| Veröffentlicht in: | PloS one 2008-08, Vol.3 (8), p.e3055 |
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| description | The aim of this study was to examine individual differences in a large sample of complete melatonin profiles not suppressed by light and search for possible associations between the amount and timing of melatonin secretion and a multitude of lifestyle variables. The melatonin profiles were derived from saliva samples collected every 30 minutes in dim light from 85 healthy women and 85 healthy men aged 18-45 years. There was a large individual variability in the amount of melatonin secreted with peak values ranging from 2 to 84 pg/ml. The onset of melatonin secretion ranged from 18:13 to 00:26 hours. The use of hormonal birth control, reduced levels of employment, a smaller number of days on a fixed sleep schedule, increased day length and lower weight were associated with an increased amplitude of melatonin secretion. The use of hormonal birth control, contact lenses, a younger age, and lower ratings of mania and paranoia were associated with a longer duration of melatonin secretion. An earlier occurrence of the onset of melatonin secretion was associated with an earlier wake time, more morningness and the absence of a bed partner. Lifestyle and behavioral variables were only able to explain about 15% of the individual variability in the amount of melatonin secretion, which is likely because of a substantial genetic influence on the levels of melatonin secretion. |
| doi_str_mv | 10.1371/journal.pone.0003055 |
| format | Article |
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The melatonin profiles were derived from saliva samples collected every 30 minutes in dim light from 85 healthy women and 85 healthy men aged 18-45 years. There was a large individual variability in the amount of melatonin secreted with peak values ranging from 2 to 84 pg/ml. The onset of melatonin secretion ranged from 18:13 to 00:26 hours. The use of hormonal birth control, reduced levels of employment, a smaller number of days on a fixed sleep schedule, increased day length and lower weight were associated with an increased amplitude of melatonin secretion. The use of hormonal birth control, contact lenses, a younger age, and lower ratings of mania and paranoia were associated with a longer duration of melatonin secretion. An earlier occurrence of the onset of melatonin secretion was associated with an earlier wake time, more morningness and the absence of a bed partner. Lifestyle and behavioral variables were only able to explain about 15% of the individual variability in the amount of melatonin secretion, which is likely because of a substantial genetic influence on the levels of melatonin secretion.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0003055</identifier><identifier>PMID: 18725972</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adolescent ; Adult ; Behavioral sciences ; Birth ; Body Mass Index ; Breast cancer ; Caffeine ; Circadian rhythm ; Contact lenses ; Contraception ; Cytochrome ; Darkness ; Day length ; Endocrine system ; Female ; Health care ; Humans ; Kinetics ; Laboratories ; Lifestyles ; Light ; Male ; Melatonin ; Melatonin - metabolism ; Metabolism ; Metabolites ; Middle age ; Middle Aged ; Neuroscience/Behavioral Neuroscience ; Physiology/Endocrinology ; Physiology/Integrative Physiology ; Racial Groups ; Reference Values ; Rodents ; Saliva ; Saliva - metabolism ; Secretion ; Sleep ; Sleep and wakefulness ; Sleep deprivation ; Socioeconomic Factors ; Studies ; Ultraviolet radiation ; Urine ; Variability ; Wakefulness ; Women's health</subject><ispartof>PloS one, 2008-08, Vol.3 (8), p.e3055</ispartof><rights>COPYRIGHT 2008 Public Library of Science</rights><rights>2008 Burgess, Fogg. This is an open-access article distributed under the terms of the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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Lifestyle and behavioral variables were only able to explain about 15% of the individual variability in the amount of melatonin secretion, which is likely because of a substantial genetic influence on the levels of melatonin secretion.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Behavioral sciences</subject><subject>Birth</subject><subject>Body Mass Index</subject><subject>Breast cancer</subject><subject>Caffeine</subject><subject>Circadian rhythm</subject><subject>Contact lenses</subject><subject>Contraception</subject><subject>Cytochrome</subject><subject>Darkness</subject><subject>Day length</subject><subject>Endocrine system</subject><subject>Female</subject><subject>Health care</subject><subject>Humans</subject><subject>Kinetics</subject><subject>Laboratories</subject><subject>Lifestyles</subject><subject>Light</subject><subject>Male</subject><subject>Melatonin</subject><subject>Melatonin - metabolism</subject><subject>Metabolism</subject><subject>Metabolites</subject><subject>Middle age</subject><subject>Middle Aged</subject><subject>Neuroscience/Behavioral Neuroscience</subject><subject>Physiology/Endocrinology</subject><subject>Physiology/Integrative Physiology</subject><subject>Racial Groups</subject><subject>Reference Values</subject><subject>Rodents</subject><subject>Saliva</subject><subject>Saliva - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Burgess, Helen J</au><au>Fogg, Louis F</au><au>Yamazaki, Shin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Individual differences in the amount and timing of salivary melatonin secretion</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2008-08-26</date><risdate>2008</risdate><volume>3</volume><issue>8</issue><spage>e3055</spage><pages>e3055-</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>The aim of this study was to examine individual differences in a large sample of complete melatonin profiles not suppressed by light and search for possible associations between the amount and timing of melatonin secretion and a multitude of lifestyle variables. The melatonin profiles were derived from saliva samples collected every 30 minutes in dim light from 85 healthy women and 85 healthy men aged 18-45 years. There was a large individual variability in the amount of melatonin secreted with peak values ranging from 2 to 84 pg/ml. The onset of melatonin secretion ranged from 18:13 to 00:26 hours. The use of hormonal birth control, reduced levels of employment, a smaller number of days on a fixed sleep schedule, increased day length and lower weight were associated with an increased amplitude of melatonin secretion. The use of hormonal birth control, contact lenses, a younger age, and lower ratings of mania and paranoia were associated with a longer duration of melatonin secretion. An earlier occurrence of the onset of melatonin secretion was associated with an earlier wake time, more morningness and the absence of a bed partner. Lifestyle and behavioral variables were only able to explain about 15% of the individual variability in the amount of melatonin secretion, which is likely because of a substantial genetic influence on the levels of melatonin secretion.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>18725972</pmid><doi>10.1371/journal.pone.0003055</doi><tpages>e3055</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adolescent Adult Behavioral sciences Birth Body Mass Index Breast cancer Caffeine Circadian rhythm Contact lenses Contraception Cytochrome Darkness Day length Endocrine system Female Health care Humans Kinetics Laboratories Lifestyles Light Male Melatonin Melatonin - metabolism Metabolism Metabolites Middle age Middle Aged Neuroscience/Behavioral Neuroscience Physiology/Endocrinology Physiology/Integrative Physiology Racial Groups Reference Values Rodents Saliva Saliva - metabolism Secretion Sleep Sleep and wakefulness Sleep deprivation Socioeconomic Factors Studies Ultraviolet radiation Urine Variability Wakefulness Women's health |
| title | Individual differences in the amount and timing of salivary melatonin secretion |
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