Variants in the circadian clock genes < em > PER2 < /em > and < em > PER3 < /em > associate with familial sleep phase disorders
Chronobiol Int. 2024 May 2:1-10. doi: 10.1080/07420528.2024.2348016. Online ahead of print.ABSTRACTDelayed sleep phase disorder and advanced sleep phase disorder cause disruption of the circadian clock and present with extreme morning/evening chronotype with unclear role of the genetic etiology, especially for delayed sleep phase disorder. To assess if genotyping can aid in clinical diagnosis, we examined the presence of genetic variants in circadian clock genes previously linked to both sleep disorders in Slovenian patient cohort. Based on Morning-evening questionnaire, we found 15 patients with extreme chronotypes, 13 ev...
Source: Chronobiology International - May 2, 2024 Category: Biology Authors: Laura Plavc Cene Skubic Leja Dolenc Gro šelj Damjana Rozman Source Type: research
Investigation of the effect of circadian rhythm on the performances of NBA teams
Chronobiol Int. 2024 Apr 30:1-10. doi: 10.1080/07420528.2024.2325641. Online ahead of print.ABSTRACTProfessional athletes competing in the NBA are frequently exposed to time-zone-shifting travels. These time zone changes may cause circadian rhythm (CR) phase shifts and these shifts affect sportive performance. The aim of this study was to investigate the effects of CR phase shifts on the performance of NBA teams. 25016 regular season games across 21 consecutive seasons were included in the CR phase shift calculations. To examine the CR phase shift effect on team performance, teams were divided into three groups regarding C...
Source: Chronobiology International - May 1, 2024 Category: Biology Authors: F ırat Özdalyan Erhan Çene Hikmet G ümüş Osman A çıkgöz Source Type: research
Investigation of the effect of circadian rhythm on the performances of NBA teams
Chronobiol Int. 2024 Apr 30:1-10. doi: 10.1080/07420528.2024.2325641. Online ahead of print.ABSTRACTProfessional athletes competing in the NBA are frequently exposed to time-zone-shifting travels. These time zone changes may cause circadian rhythm (CR) phase shifts and these shifts affect sportive performance. The aim of this study was to investigate the effects of CR phase shifts on the performance of NBA teams. 25016 regular season games across 21 consecutive seasons were included in the CR phase shift calculations. To examine the CR phase shift effect on team performance, teams were divided into three groups regarding C...
Source: Chronobiology International - May 1, 2024 Category: Biology Authors: F ırat Özdalyan Erhan Çene Hikmet G ümüş Osman A çıkgöz Source Type: research
Factors associated with the fragmentation and stability of the rest-activity rhythm in adults and older adults
Chronobiol Int. 2024 Apr 29:1-12. doi: 10.1080/07420528.2024.2346521. Online ahead of print.ABSTRACTThis cross-sectional study aimed to identify factors related to the fragmentation and stability of the rest-activity rhythm (RAR) in adults and older adults. It is part of a larger research project investigating aspects concerning sleep duration, quality, and disorders in a representative subsample of the population. Sociodemographic data, lifestyle, health habits and subjective sleep variables were obtained; RAR records were collected by means of actigraphy and analyzed using non-parametric variables (IS, IV, M10, L5, RA, s...
Source: Chronobiology International - April 29, 2024 Category: Biology Authors: Cleber de Souza Oliveira Carla Renata Silva Andrechuk Margareth Guimar ães Lima Marilisa Berti de Azevedo Barros Edilson Zancanella T ânia Aparecida Marchiori de Oliveira Cardoso Maria Filomena Ceolim Source Type: research
Factors associated with the fragmentation and stability of the rest-activity rhythm in adults and older adults
Chronobiol Int. 2024 Apr 29:1-12. doi: 10.1080/07420528.2024.2346521. Online ahead of print.ABSTRACTThis cross-sectional study aimed to identify factors related to the fragmentation and stability of the rest-activity rhythm (RAR) in adults and older adults. It is part of a larger research project investigating aspects concerning sleep duration, quality, and disorders in a representative subsample of the population. Sociodemographic data, lifestyle, health habits and subjective sleep variables were obtained; RAR records were collected by means of actigraphy and analyzed using non-parametric variables (IS, IV, M10, L5, RA, s...
Source: Chronobiology International - April 29, 2024 Category: Biology Authors: Cleber de Souza Oliveira Carla Renata Silva Andrechuk Margareth Guimar ães Lima Marilisa Berti de Azevedo Barros Edilson Zancanella T ânia Aparecida Marchiori de Oliveira Cardoso Maria Filomena Ceolim Source Type: research
Construct validity and test-retest reliability of a chrononutrition questionnaire for shift work and non-shift work populations
Chronobiol Int. 2024 Apr 26:1-15. doi: 10.1080/07420528.2024.2342937. Online ahead of print.ABSTRACTThe irregular eating patterns of both shift workers and evening chronotypes adversely affect cardiometabolic health. A tool that conveniently captures temporal patterns of eating alongside an indicator of circadian rhythm such as chronotype will enable researchers to explore relationships with diverse health outcome measures. We aimed to investigate the test-retest reliability and convergent validity of a Chrononutrition Questionnaire (CNQ) that captures temporal patterns of eating and chronotype in the general population (n...
Source: Chronobiology International - April 26, 2024 Category: Biology Authors: Yan Yin Phoi Maxine P Bonham Michelle Rogers Jillian Dorrian Alison M Coates Source Type: research
Construct validity and test-retest reliability of a chrononutrition questionnaire for shift work and non-shift work populations
Chronobiol Int. 2024 Apr 26:1-15. doi: 10.1080/07420528.2024.2342937. Online ahead of print.ABSTRACTThe irregular eating patterns of both shift workers and evening chronotypes adversely affect cardiometabolic health. A tool that conveniently captures temporal patterns of eating alongside an indicator of circadian rhythm such as chronotype will enable researchers to explore relationships with diverse health outcome measures. We aimed to investigate the test-retest reliability and convergent validity of a Chrononutrition Questionnaire (CNQ) that captures temporal patterns of eating and chronotype in the general population (n...
Source: Chronobiology International - April 26, 2024 Category: Biology Authors: Yan Yin Phoi Maxine P Bonham Michelle Rogers Jillian Dorrian Alison M Coates Source Type: research
Construct validity and test-retest reliability of a chrononutrition questionnaire for shift work and non-shift work populations
Chronobiol Int. 2024 Apr 26:1-15. doi: 10.1080/07420528.2024.2342937. Online ahead of print.ABSTRACTThe irregular eating patterns of both shift workers and evening chronotypes adversely affect cardiometabolic health. A tool that conveniently captures temporal patterns of eating alongside an indicator of circadian rhythm such as chronotype will enable researchers to explore relationships with diverse health outcome measures. We aimed to investigate the test-retest reliability and convergent validity of a Chrononutrition Questionnaire (CNQ) that captures temporal patterns of eating and chronotype in the general population (n...
Source: Chronobiology International - April 26, 2024 Category: Biology Authors: Yan Yin Phoi Maxine P Bonham Michelle Rogers Jillian Dorrian Alison M Coates Source Type: research
Seasonal patterns in Chinese population: Validating the seasonal pattern assessment questionnaire and exploring associations with psychiatric diagnoses and biological rhythms
In this study, we enrolled 198 psychiatric patients with anxiety and depressive disorders (A&D), bipolar disorder (BD), and schizophrenia (SZ), as well as healthy college students. Online questionnaires, including the Seasonal Pattern Assessment Questionnaire (SPAQ) for seasonality, the Morningness and Eveningness Questionnaire-5 (MEQ-5) for chronotypes, and the Pittsburgh Sleep Quality Index (PSQI), were administered. The validity and reliability of the Chinese version of the SPAQ were thoroughly analyzed, revealing a Cronbach's alpha of 0.896 with a two-factor structure. Results indicated that higher seasonality was ...
Source: Chronobiology International - April 22, 2024 Category: Biology Authors: Huirong Luo Juan Cheng Zheng Zhang Yinlin Zhang Xueqian Wang Renqin Hu Junyao Li Yanwei Guo Qinghua Luo Source Type: research
Seasonal patterns in Chinese population: Validating the seasonal pattern assessment questionnaire and exploring associations with psychiatric diagnoses and biological rhythms
In this study, we enrolled 198 psychiatric patients with anxiety and depressive disorders (A&D), bipolar disorder (BD), and schizophrenia (SZ), as well as healthy college students. Online questionnaires, including the Seasonal Pattern Assessment Questionnaire (SPAQ) for seasonality, the Morningness and Eveningness Questionnaire-5 (MEQ-5) for chronotypes, and the Pittsburgh Sleep Quality Index (PSQI), were administered. The validity and reliability of the Chinese version of the SPAQ were thoroughly analyzed, revealing a Cronbach's alpha of 0.896 with a two-factor structure. Results indicated that higher seasonality was ...
Source: Chronobiology International - April 22, 2024 Category: Biology Authors: Huirong Luo Juan Cheng Zheng Zhang Yinlin Zhang Xueqian Wang Renqin Hu Junyao Li Yanwei Guo Qinghua Luo Source Type: research
Seasonal patterns in Chinese population: Validating the seasonal pattern assessment questionnaire and exploring associations with psychiatric diagnoses and biological rhythms
In this study, we enrolled 198 psychiatric patients with anxiety and depressive disorders (A&D), bipolar disorder (BD), and schizophrenia (SZ), as well as healthy college students. Online questionnaires, including the Seasonal Pattern Assessment Questionnaire (SPAQ) for seasonality, the Morningness and Eveningness Questionnaire-5 (MEQ-5) for chronotypes, and the Pittsburgh Sleep Quality Index (PSQI), were administered. The validity and reliability of the Chinese version of the SPAQ were thoroughly analyzed, revealing a Cronbach's alpha of 0.896 with a two-factor structure. Results indicated that higher seasonality was ...
Source: Chronobiology International - April 22, 2024 Category: Biology Authors: Huirong Luo Juan Cheng Zheng Zhang Yinlin Zhang Xueqian Wang Renqin Hu Junyao Li Yanwei Guo Qinghua Luo Source Type: research
Menstrual cycle phases and dosage of synthetic hormonal contraceptives influence diurnal rhythm characteristics of distal skin temperature
In conclusion, monophasic OC cause changes in diurnal DST rhythm, similar to those observed in the luteal phase of females with menstrual cycles, suggesting that synthetic progestins act in a similar manner on skin thermoregulation as progesterone does.PMID:38634452 | DOI:10.1080/07420528.2024.2342945 (Source: Chronobiology International)
Source: Chronobiology International - April 18, 2024 Category: Biology Authors: Manuela Dittmar Leefke M öllgaard Felicia Engelhard Source Type: research
Menstrual cycle phases and dosage of synthetic hormonal contraceptives influence diurnal rhythm characteristics of distal skin temperature
In conclusion, monophasic OC cause changes in diurnal DST rhythm, similar to those observed in the luteal phase of females with menstrual cycles, suggesting that synthetic progestins act in a similar manner on skin thermoregulation as progesterone does.PMID:38634452 | DOI:10.1080/07420528.2024.2342945 (Source: Chronobiology International)
Source: Chronobiology International - April 18, 2024 Category: Biology Authors: Manuela Dittmar Leefke M öllgaard Felicia Engelhard Source Type: research
Psychometric properties of the Turkish reduced morningness and eveningness questionnaire
Chronobiol Int. 2024 Apr 17:1-15. doi: 10.1080/07420528.2024.2339964. Online ahead of print.ABSTRACTThe aim of this study was to examine the psychometric properties of the 5-item Turkish Reduced Morningness-Eveningness Questionnaire (rMEQ) for the first time. The study involved 875 university students in an adaptation and validation study. Participants completed the rMEQ, MEQ, Depression Anxiety Stress Scale-21 (DASS-21), Insomnia Severity Index (ISI), Barratt Impulsiveness Scale Short Form (BIS-SF), and Oxford Happiness Questionnaire Short Form (OHQ-SF). The factor structure, convergent validity, internal consistency, sen...
Source: Chronobiology International - April 17, 2024 Category: Biology Authors: Hilal Uygur Rukiye Tekdemir Omer Faruk Uygur Esat Fahri Aydin Merve Celik Hakan Emre Babacan Onur Hursitoglu Source Type: research
Psychometric properties of the Turkish reduced morningness and eveningness questionnaire
Chronobiol Int. 2024 Apr 17:1-15. doi: 10.1080/07420528.2024.2339964. Online ahead of print.ABSTRACTThe aim of this study was to examine the psychometric properties of the 5-item Turkish Reduced Morningness-Eveningness Questionnaire (rMEQ) for the first time. The study involved 875 university students in an adaptation and validation study. Participants completed the rMEQ, MEQ, Depression Anxiety Stress Scale-21 (DASS-21), Insomnia Severity Index (ISI), Barratt Impulsiveness Scale Short Form (BIS-SF), and Oxford Happiness Questionnaire Short Form (OHQ-SF). The factor structure, convergent validity, internal consistency, sen...
Source: Chronobiology International - April 17, 2024 Category: Biology Authors: Hilal Uygur Rukiye Tekdemir Omer Faruk Uygur Esat Fahri Aydin Merve Celik Hakan Emre Babacan Onur Hursitoglu Source Type: research
