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Specialty: Biology
Condition: Sleep Disorders
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Total 1053 results found since Jan 2013.
Suprachiasmatic nucleus promotes hyperglycemia induced by sleep delay
Curr Biol. 2023 Sep 13:S0960-9822(23)01151-X. doi: 10.1016/j.cub.2023.08.071. Online ahead of print.ABSTRACTShort sleep is linked to disturbances in glucose metabolism and may induce a prediabetic condition. The biological clock in the suprachiasmatic nucleus (SCN) regulates the glucose rhythm in the circulation and the sleep-wake cycle. SCN vasopressin neurons (SCNVP) control daily glycemia by regulating the entrance of glucose into the arcuate nucleus (ARC). Thus, we hypothesized that sleep delay may influence SCN neuronal activity. We, therefore, investigated the role of SCNVP when sleep is disrupted by forced locomotor...
Source: Current Biology - September 19, 2023 Category: Biology Authors: Gabriela Hurtado-Alvarado Eva Soto-Tinoco Esteban Santacruz-Mart ínez Masha Prager-Khoutorsky Carolina Escobar Ruud M Buijs Source Type: research
Is implementing a post-lunch nap beneficial on evening performance, following two nights partial sleep restriction?
Chronobiol Int. 2023 Sep 18:1-18. doi: 10.1080/07420528.2023.2253908. Online ahead of print.ABSTRACTWe have investigated the effects that partial-sleep-restriction (PSR0, 4-h sleep retiring at 02:30 and waking at 06:30 h for two consecutive nights) have on 07:30 and 17:00 h cognitive and submaximal weightlifting; and whether this performance improves at 17:00 h following a 13:00 h powernap (0, 30 or 60-min). Fifteen resistance-trained males participated in this study. Prior to the experimental protocol, one repetition max (1RM) bench press and back squat, normative habitual sleep and food intake were recorded. Participants...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Chloe Gallagher Chloe E Green Michael L Kenny Jessie R Evans Glenn D W McCullagh Samuel A Pullinger Ben J Edwards Source Type: research
Association between circadian clock gene expressions and meal timing in young and older adults
In this study, we investigated the relationship between clock gene expression and meal timing in young and older adults. In this cross-sectional study, we enrolled 51 healthy young men and 35 healthy older men (age, mean±standard deviation: 24 ± 4 and 70 ± 4 y, respectively). Under daily living conditions, beard follicle cells were collected at 4-h intervals over a 24-h period to evaluate clock gene expression. Participants were asked to record the timing of habitual sleep and wake-up, breakfast, lunch, and dinner. From these data, we calculated "From bedtime to breakfast time," "From wake up to first meal time," and "F...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Masaki Takahashi Mayuko Fukazawa Yu Tahara Hyeon-Ki Kim Kumpei Tanisawa Tomoko Ito Takashi Nakaoka Mitsuru Higuchi Shigenobu Shibata Source Type: research
Early-to-mid pregnancy sleep and circadian markers in relation to birth outcomes: An epigenetics pilot study
Chronobiol Int. 2023 Sep 18:1-11. doi: 10.1080/07420528.2023.2256854. Online ahead of print.ABSTRACTMaternal sleep and circadian health during pregnancy are emerging as important predictors of pregnancy outcomes, but examination of potential epigenetic mechanisms is rare. We investigated links between maternal leukocyte DNA methylation of circadian genes and birth outcomes within a pregnancy cohort. Women (n = 96) completed a questionnaire and provided a blood sample at least once during early-to-mid pregnancy (average gestation weeks = 14.2). Leukocyte DNA was isolated and DNA methylation (average percent of methylation) ...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Erica C Jansen Kelvin Pengyuan Zhang Dana C Dolinoy Helen J Burgess Louise M O'Brien Elizabeth Langen Naquia Unwala Jessa Ehlinger Molly C Mulcahy Jaclyn M Goodrich Source Type: research
Intraindividual variability in sleep duration and college degree attainment
The objective of the current study was to examine the relationship between sleep characteristics and college degree attainment. Participants were 968 college students (72% female; mean age 19.7 [1.7]). Participants completed a psychosocial and sleep questionnaire battery followed by one week of daily sleep diaries. Academic degree completion data was obtained from the university registrar 10 years later. Logistic regression examined whether mean and variability in sleep duration and sleep efficiency and insomnia symptoms predicted degree attainment, adjusting for age, gender, semester, grade point average (GPA), and percei...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Jessica R Dietch Alisa Huskey Ian O Dadeboe Danica C Slavish Daniel J Taylor Source Type: research
Is implementing a post-lunch nap beneficial on evening performance, following two nights partial sleep restriction?
Chronobiol Int. 2023 Sep 18:1-18. doi: 10.1080/07420528.2023.2253908. Online ahead of print.ABSTRACTWe have investigated the effects that partial-sleep-restriction (PSR0, 4-h sleep retiring at 02:30 and waking at 06:30 h for two consecutive nights) have on 07:30 and 17:00 h cognitive and submaximal weightlifting; and whether this performance improves at 17:00 h following a 13:00 h powernap (0, 30 or 60-min). Fifteen resistance-trained males participated in this study. Prior to the experimental protocol, one repetition max (1RM) bench press and back squat, normative habitual sleep and food intake were recorded. Participants...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Chloe Gallagher Chloe E Green Michael L Kenny Jessie R Evans Glenn D W McCullagh Samuel A Pullinger Ben J Edwards Source Type: research
Association between circadian clock gene expressions and meal timing in young and older adults
In this study, we investigated the relationship between clock gene expression and meal timing in young and older adults. In this cross-sectional study, we enrolled 51 healthy young men and 35 healthy older men (age, mean±standard deviation: 24 ± 4 and 70 ± 4 y, respectively). Under daily living conditions, beard follicle cells were collected at 4-h intervals over a 24-h period to evaluate clock gene expression. Participants were asked to record the timing of habitual sleep and wake-up, breakfast, lunch, and dinner. From these data, we calculated "From bedtime to breakfast time," "From wake up to first meal time," and "F...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Masaki Takahashi Mayuko Fukazawa Yu Tahara Hyeon-Ki Kim Kumpei Tanisawa Tomoko Ito Takashi Nakaoka Mitsuru Higuchi Shigenobu Shibata Source Type: research
Early-to-mid pregnancy sleep and circadian markers in relation to birth outcomes: An epigenetics pilot study
Chronobiol Int. 2023 Sep 18:1-11. doi: 10.1080/07420528.2023.2256854. Online ahead of print.ABSTRACTMaternal sleep and circadian health during pregnancy are emerging as important predictors of pregnancy outcomes, but examination of potential epigenetic mechanisms is rare. We investigated links between maternal leukocyte DNA methylation of circadian genes and birth outcomes within a pregnancy cohort. Women (n = 96) completed a questionnaire and provided a blood sample at least once during early-to-mid pregnancy (average gestation weeks = 14.2). Leukocyte DNA was isolated and DNA methylation (average percent of methylation) ...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Erica C Jansen Kelvin Pengyuan Zhang Dana C Dolinoy Helen J Burgess Louise M O'Brien Elizabeth Langen Naquia Unwala Jessa Ehlinger Molly C Mulcahy Jaclyn M Goodrich Source Type: research
Intraindividual variability in sleep duration and college degree attainment
The objective of the current study was to examine the relationship between sleep characteristics and college degree attainment. Participants were 968 college students (72% female; mean age 19.7 [1.7]). Participants completed a psychosocial and sleep questionnaire battery followed by one week of daily sleep diaries. Academic degree completion data was obtained from the university registrar 10 years later. Logistic regression examined whether mean and variability in sleep duration and sleep efficiency and insomnia symptoms predicted degree attainment, adjusting for age, gender, semester, grade point average (GPA), and percei...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Jessica R Dietch Alisa Huskey Ian O Dadeboe Danica C Slavish Daniel J Taylor Source Type: research
Is implementing a post-lunch nap beneficial on evening performance, following two nights partial sleep restriction?
Chronobiol Int. 2023 Sep 18:1-18. doi: 10.1080/07420528.2023.2253908. Online ahead of print.ABSTRACTWe have investigated the effects that partial-sleep-restriction (PSR0, 4-h sleep retiring at 02:30 and waking at 06:30 h for two consecutive nights) have on 07:30 and 17:00 h cognitive and submaximal weightlifting; and whether this performance improves at 17:00 h following a 13:00 h powernap (0, 30 or 60-min). Fifteen resistance-trained males participated in this study. Prior to the experimental protocol, one repetition max (1RM) bench press and back squat, normative habitual sleep and food intake were recorded. Participants...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Chloe Gallagher Chloe E Green Michael L Kenny Jessie R Evans Glenn D W McCullagh Samuel A Pullinger Ben J Edwards Source Type: research
Association between circadian clock gene expressions and meal timing in young and older adults
In this study, we investigated the relationship between clock gene expression and meal timing in young and older adults. In this cross-sectional study, we enrolled 51 healthy young men and 35 healthy older men (age, mean±standard deviation: 24 ± 4 and 70 ± 4 y, respectively). Under daily living conditions, beard follicle cells were collected at 4-h intervals over a 24-h period to evaluate clock gene expression. Participants were asked to record the timing of habitual sleep and wake-up, breakfast, lunch, and dinner. From these data, we calculated "From bedtime to breakfast time," "From wake up to first meal time," and "F...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Masaki Takahashi Mayuko Fukazawa Yu Tahara Hyeon-Ki Kim Kumpei Tanisawa Tomoko Ito Takashi Nakaoka Mitsuru Higuchi Shigenobu Shibata Source Type: research
Early-to-mid pregnancy sleep and circadian markers in relation to birth outcomes: An epigenetics pilot study
Chronobiol Int. 2023 Sep 18:1-11. doi: 10.1080/07420528.2023.2256854. Online ahead of print.ABSTRACTMaternal sleep and circadian health during pregnancy are emerging as important predictors of pregnancy outcomes, but examination of potential epigenetic mechanisms is rare. We investigated links between maternal leukocyte DNA methylation of circadian genes and birth outcomes within a pregnancy cohort. Women (n = 96) completed a questionnaire and provided a blood sample at least once during early-to-mid pregnancy (average gestation weeks = 14.2). Leukocyte DNA was isolated and DNA methylation (average percent of methylation) ...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Erica C Jansen Kelvin Pengyuan Zhang Dana C Dolinoy Helen J Burgess Louise M O'Brien Elizabeth Langen Naquia Unwala Jessa Ehlinger Molly C Mulcahy Jaclyn M Goodrich Source Type: research
Intraindividual variability in sleep duration and college degree attainment
The objective of the current study was to examine the relationship between sleep characteristics and college degree attainment. Participants were 968 college students (72% female; mean age 19.7 [1.7]). Participants completed a psychosocial and sleep questionnaire battery followed by one week of daily sleep diaries. Academic degree completion data was obtained from the university registrar 10 years later. Logistic regression examined whether mean and variability in sleep duration and sleep efficiency and insomnia symptoms predicted degree attainment, adjusting for age, gender, semester, grade point average (GPA), and percei...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Jessica R Dietch Alisa Huskey Ian O Dadeboe Danica C Slavish Daniel J Taylor Source Type: research
Chronotype and lipid metabolism in Arctic Sojourn Workers
This study relates answers to the Munich Chronotype Questionnaire (MCTQ) and Pittsburgh Sleep Quality Index (PSQI) from Arctic Sojourn Workers (ASW) of Yamburg Settlement, 68° Latitude North, 75° Longitude East (n = 180; mean age ± SD; range: 49.2 ± 7.8; 25-66 y; 45% women) to Arctic Sojourn Work Experience (ASWE), age and health status. Chronotype, Mid Sleep on Free Days sleep corrected (MSFsc) and sleep characteristics of ASW were compared to those of age-matched Tyumen Residents (TR, n = 270; mean age ± SD; range: 48.4 ± 8.4; 25-69 y; 48% women), 57° Latitude North, 65° Longitude East. ASW have earlier MSFsc tha...
Source: Chronobiology International - September 13, 2023 Category: Biology Authors: Denis Gubin Alexander Vetoshkin Nina Shurkevich Ludmila Gapon Mikhail Borisenkov Germaine Cornelissen Dietmar Weinert Source Type: research
