Pub Date : 2022-03-28DOI: 10.1080/09291016.2022.2054558
Noorshama Parveen, A. Parganiha
ABSTRACT Obstructive sleep apnea (OSA) is a sleep-related breathing disorder. It occurs due to obstruction on the upper airway of respiration. This disorder can be either complete (apnea) or partial (hypopnea). Interruption in breathing results in the production of a snoring sound, which is one of the prominent symptoms of OSA. Excessive daytime sleepiness (EDS), hypertension, diabetes, etc. are some of the commonly occurring co-morbidities of OSA. OSA is common in the population of middle-aged and elderly people, but pediatric OSA is also eminent. The occurrence of the disease is higher in males. The increasing age, male gender, higher BMI, and comorbidities, such as metabolic syndrome, and obesity are considered as risk factors and make individuals more prone to OSA. The quality of life (Qol) of the individuals also gets affected by the OSA. It also alters the circadian rhythm of various autonomic and biochemical activities of people with OSA. Although polysomnography is considered the gold standard for the diagnosis of OSA, it is very costly and time-consuming. There are many portable monitoring devices and screening questionnaires for the diagnosis of OSA. Screening of OSA before polysomnography or portable monitoring is cost-effective, quick, and productive. In this review, we have highlighted scientific studies related to various factors associated with OSA in human subjects.
{"title":"Consequences and factors associated with OSA: a brief review","authors":"Noorshama Parveen, A. Parganiha","doi":"10.1080/09291016.2022.2054558","DOIUrl":"https://doi.org/10.1080/09291016.2022.2054558","url":null,"abstract":"ABSTRACT Obstructive sleep apnea (OSA) is a sleep-related breathing disorder. It occurs due to obstruction on the upper airway of respiration. This disorder can be either complete (apnea) or partial (hypopnea). Interruption in breathing results in the production of a snoring sound, which is one of the prominent symptoms of OSA. Excessive daytime sleepiness (EDS), hypertension, diabetes, etc. are some of the commonly occurring co-morbidities of OSA. OSA is common in the population of middle-aged and elderly people, but pediatric OSA is also eminent. The occurrence of the disease is higher in males. The increasing age, male gender, higher BMI, and comorbidities, such as metabolic syndrome, and obesity are considered as risk factors and make individuals more prone to OSA. The quality of life (Qol) of the individuals also gets affected by the OSA. It also alters the circadian rhythm of various autonomic and biochemical activities of people with OSA. Although polysomnography is considered the gold standard for the diagnosis of OSA, it is very costly and time-consuming. There are many portable monitoring devices and screening questionnaires for the diagnosis of OSA. Screening of OSA before polysomnography or portable monitoring is cost-effective, quick, and productive. In this review, we have highlighted scientific studies related to various factors associated with OSA in human subjects.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"54 1","pages":"1 - 40"},"PeriodicalIF":1.1,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41649167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-21DOI: 10.1080/09291016.2022.2054124
V. Shivarov, Hristo Shivarov, A. Yordanov
ABSTRACT Cancer patients are at increased risk of suicidal behavior. It is well known that suicides show seasonality with peak in the Spring and early Summer suggesting the influence of circa-annual environmental factors. Here we questioned whether cancer diagnosis interacts with the seasonality of suicides. We performed a etrospective analysis of seasonality of suicides among cancer patients registered between 1974 and 2016 in the Surveillance, Epidemiology, and End Results (SEER) database fitting the classical cosinor model . A significant seasonal pattern with a peak in the first half of May was identified. The same peak was observed for both sexes as well as for elderly (> 50 years) and White patients. Patients living in Southern counties had an earlier peak versus those from Northern counties. The rate of both early (within the first year after diagnosis) and late suicides also followed the identical seasonal pattern with peak in May. The analysis per cancer subtypes revealed that only prostate cancer patients had a significant peak in May. Our findings suggest thatcancer diagnosis does not alter the typical seasonal pattern of suicides observed in the general population. Therefore, psychological support in cancer patients must be particularly active in the Spring and early Summer.
{"title":"Seasonality of Suicides among Cancer Patients","authors":"V. Shivarov, Hristo Shivarov, A. Yordanov","doi":"10.1080/09291016.2022.2054124","DOIUrl":"https://doi.org/10.1080/09291016.2022.2054124","url":null,"abstract":"ABSTRACT Cancer patients are at increased risk of suicidal behavior. It is well known that suicides show seasonality with peak in the Spring and early Summer suggesting the influence of circa-annual environmental factors. Here we questioned whether cancer diagnosis interacts with the seasonality of suicides. We performed a etrospective analysis of seasonality of suicides among cancer patients registered between 1974 and 2016 in the Surveillance, Epidemiology, and End Results (SEER) database fitting the classical cosinor model . A significant seasonal pattern with a peak in the first half of May was identified. The same peak was observed for both sexes as well as for elderly (> 50 years) and White patients. Patients living in Southern counties had an earlier peak versus those from Northern counties. The rate of both early (within the first year after diagnosis) and late suicides also followed the identical seasonal pattern with peak in May. The analysis per cancer subtypes revealed that only prostate cancer patients had a significant peak in May. Our findings suggest thatcancer diagnosis does not alter the typical seasonal pattern of suicides observed in the general population. Therefore, psychological support in cancer patients must be particularly active in the Spring and early Summer.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1932 - 1940"},"PeriodicalIF":1.1,"publicationDate":"2022-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42461501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-11DOI: 10.1080/09291016.2022.2051302
Hakkı Bağcı, Mehmet Barış Horzum
ABSTRACT The present study aims to reveal whether gender, age, personality traits, chronotypes, and smartphone screen-time predict smartphone addiction. This study used the composite scale of morningness, big five inventory, and smartphone addiction scale for collecting data. Females showed higher levels of smartphone addiction than males. Furthermore, age was not a significant predictor of smartphone addiction. We revealed that conscientiousness and neuroticism were significant predictors of smartphone addiction while extraversion, agreeableness, and openness to experience were not. We also found that neurotic people had higher levels of smartphone addiction. We revealed in this study that people with evening chronotypes had higher levels of smartphone addiction. In conclusion, female, neurotic, eveningness chronotypes, and students who use smartphones at high levels were more addicted to smartphones.
{"title":"The relationship of smartphone addiction with chronotype and personality structures in university students","authors":"Hakkı Bağcı, Mehmet Barış Horzum","doi":"10.1080/09291016.2022.2051302","DOIUrl":"https://doi.org/10.1080/09291016.2022.2051302","url":null,"abstract":"ABSTRACT The present study aims to reveal whether gender, age, personality traits, chronotypes, and smartphone screen-time predict smartphone addiction. This study used the composite scale of morningness, big five inventory, and smartphone addiction scale for collecting data. Females showed higher levels of smartphone addiction than males. Furthermore, age was not a significant predictor of smartphone addiction. We revealed that conscientiousness and neuroticism were significant predictors of smartphone addiction while extraversion, agreeableness, and openness to experience were not. We also found that neurotic people had higher levels of smartphone addiction. We revealed in this study that people with evening chronotypes had higher levels of smartphone addiction. In conclusion, female, neurotic, eveningness chronotypes, and students who use smartphones at high levels were more addicted to smartphones.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1917 - 1931"},"PeriodicalIF":1.1,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46087020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-11DOI: 10.1080/09291016.2022.2044631
Gizem Özata Uyar, H. Yıldıran
ABSTRACT Circadian rhythms, also known as circadian clocks, are cyclic endogenous biological patterns of an approximately 24-hour cycle which regulate the timing of physiology, metabolism, and behavior. Recent research in the field of circadian science has suggested that the timing of food intake may also play a role in markers of health, in addition to food choice and food quantity. There is emerging evidence suggesting that the timing of dietary intake, so-called chrono-nutrition, may be influenced by an individuals chronotype. For example, the evening type has been linked to unhealthy diet, which could indicate a higher possibility of obesity. On the other hand, the continuum of chronotype diversity is largely mediated by genes. The presence of single nucleotide polymorphisms (SNP) of clock genes have been associated with obesity, chronotype, metabolic disturbances, and dietary habits (e.g., breakfast skipping, meal timing, energy/macronutrient intake). In this review, we outline the current knowledge of the interactions between clock genes, chronotype, dietary intake and chrono-nutrition.Additionally, it is emphasized that the COVID-19 pandemichas had a significant impact on the circadian system, dietary choices and meal timing. For this reason, the current review aims to focus on how chronotype/sleep and chrono-nutrition are affected during the COVID-19 pandemic.
{"title":"The association among circadian rhythm, circadian genes and chrononutrition, its effect on obesity: a review of current evidence","authors":"Gizem Özata Uyar, H. Yıldıran","doi":"10.1080/09291016.2022.2044631","DOIUrl":"https://doi.org/10.1080/09291016.2022.2044631","url":null,"abstract":"ABSTRACT Circadian rhythms, also known as circadian clocks, are cyclic endogenous biological patterns of an approximately 24-hour cycle which regulate the timing of physiology, metabolism, and behavior. Recent research in the field of circadian science has suggested that the timing of food intake may also play a role in markers of health, in addition to food choice and food quantity. There is emerging evidence suggesting that the timing of dietary intake, so-called chrono-nutrition, may be influenced by an individuals chronotype. For example, the evening type has been linked to unhealthy diet, which could indicate a higher possibility of obesity. On the other hand, the continuum of chronotype diversity is largely mediated by genes. The presence of single nucleotide polymorphisms (SNP) of clock genes have been associated with obesity, chronotype, metabolic disturbances, and dietary habits (e.g., breakfast skipping, meal timing, energy/macronutrient intake). In this review, we outline the current knowledge of the interactions between clock genes, chronotype, dietary intake and chrono-nutrition.Additionally, it is emphasized that the COVID-19 pandemichas had a significant impact on the circadian system, dietary choices and meal timing. For this reason, the current review aims to focus on how chronotype/sleep and chrono-nutrition are affected during the COVID-19 pandemic.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1821 - 1847"},"PeriodicalIF":1.1,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44230202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-10DOI: 10.1080/09291016.2022.2050978
Parisa Najari-Hanjani, T. Farazmandfar, M. Golalipour
ABSTRACT The circadian clock allows the body to coordinate physiology with the light and dark cycles of the day. One of the critical components of the molecular clock machinery is the PER family of circadian clock genes, including PER1, PER2, and PER3. The PER3P1 (or PER4) is the only molecular clock-related pseudogene that has been derived from the PER3 gene. Pseudogenes have an essential role in the regulation of gene expression. In this study, we investigated the PER3P1 fluctuations and their effects on the PER3 expression level. We hypothesized that the PER3P1 pseudogene suppresses clock-related miRNAs and positively affects clock genes levels. The results showed that PER3P1 and its parent gene had a corresponding oscillatory expression pattern. The overexpression of PER3P1 increased the mRNA level of PER3. In contrast, the downregulation of PER3 decreased PER3P1 expression. Furthermore, PER3P1 modulates the expression level of other clock genes, including PER1, PER2, CRY1, and CRY2. Our results suggest that the PER3P1 pseudogene may positively affect the PER3 and other clock-related gene expressions.
{"title":"PER3P1 pseudogene modulates PER3 oscillation: a new player in the molecular clock network","authors":"Parisa Najari-Hanjani, T. Farazmandfar, M. Golalipour","doi":"10.1080/09291016.2022.2050978","DOIUrl":"https://doi.org/10.1080/09291016.2022.2050978","url":null,"abstract":"ABSTRACT The circadian clock allows the body to coordinate physiology with the light and dark cycles of the day. One of the critical components of the molecular clock machinery is the PER family of circadian clock genes, including PER1, PER2, and PER3. The PER3P1 (or PER4) is the only molecular clock-related pseudogene that has been derived from the PER3 gene. Pseudogenes have an essential role in the regulation of gene expression. In this study, we investigated the PER3P1 fluctuations and their effects on the PER3 expression level. We hypothesized that the PER3P1 pseudogene suppresses clock-related miRNAs and positively affects clock genes levels. The results showed that PER3P1 and its parent gene had a corresponding oscillatory expression pattern. The overexpression of PER3P1 increased the mRNA level of PER3. In contrast, the downregulation of PER3 decreased PER3P1 expression. Furthermore, PER3P1 modulates the expression level of other clock genes, including PER1, PER2, CRY1, and CRY2. Our results suggest that the PER3P1 pseudogene may positively affect the PER3 and other clock-related gene expressions.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1906 - 1916"},"PeriodicalIF":1.1,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42026297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-08DOI: 10.1080/09291016.2022.2050505
H. Akbari, F. Asgarian, S. Mozafari, Mohammad Hajijafari
ABSTRACT This study aimed to evaluate the validity and reliability of the Persian version of the Bergen Shift Work Sleep Questionnaire (BSWSQ) in Iranian nurses. This cross-sectional study was performed on nurses in Kashan using simple random sampling. The original text of the BSWSQ was translated into Persian using the direct-reverse method. The Persian version of the questionnaire was culturally adapted performed. After collecting and scoring the questionnaires, the construct validity was performed using exploratory and confirmatory factor analysis. Convergent and divergent validity were also performed. Spearman correlation coefficient, Cronbach’s alpha, and ICC calculation were also used to measure reliability. A total of 280 people participated in this study, of which 77.2% were female. Cronbach’s alpha of the total BSWSQ was 0.83. The intra-class correlation index (ICC) was calculated as 0.88 (0.93–0.8) using the test-retest method to estimate the reliability of the tools. Exploratory factor analysis explained 75% of the total variance. This study showed that the Persian translation of the BSWSQ has good validity and reliability for assessing nurses’ sleep in the Iranian population. This tool can be a standard tool for assessing sleep quality in employees with work shift rotations.
{"title":"Reliability and validity of Persian version of Bergen Shift Work Sleep Questionnaire in nursing","authors":"H. Akbari, F. Asgarian, S. Mozafari, Mohammad Hajijafari","doi":"10.1080/09291016.2022.2050505","DOIUrl":"https://doi.org/10.1080/09291016.2022.2050505","url":null,"abstract":"ABSTRACT This study aimed to evaluate the validity and reliability of the Persian version of the Bergen Shift Work Sleep Questionnaire (BSWSQ) in Iranian nurses. This cross-sectional study was performed on nurses in Kashan using simple random sampling. The original text of the BSWSQ was translated into Persian using the direct-reverse method. The Persian version of the questionnaire was culturally adapted performed. After collecting and scoring the questionnaires, the construct validity was performed using exploratory and confirmatory factor analysis. Convergent and divergent validity were also performed. Spearman correlation coefficient, Cronbach’s alpha, and ICC calculation were also used to measure reliability. A total of 280 people participated in this study, of which 77.2% were female. Cronbach’s alpha of the total BSWSQ was 0.83. The intra-class correlation index (ICC) was calculated as 0.88 (0.93–0.8) using the test-retest method to estimate the reliability of the tools. Exploratory factor analysis explained 75% of the total variance. This study showed that the Persian translation of the BSWSQ has good validity and reliability for assessing nurses’ sleep in the Iranian population. This tool can be a standard tool for assessing sleep quality in employees with work shift rotations.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1894 - 1905"},"PeriodicalIF":1.1,"publicationDate":"2022-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46890221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-02DOI: 10.1080/09291016.2022.2044632
R. Sultana, A. Pati
ABSTRACT This cross-sectional study attempted to determine the 24-h blood pressure variability (BPV) and nocturnal dipping, through designated temporal windows in diabetic and hypothyroid patients. BPV profiles were examined in the cohorts of 26 diabetics and 27 hypothyroid patients on their prescribed medications. Fifty-seven (57) healthy normotensive subjects were treated as controls. We recorded blood pressure (BP)parameters in each subject over at least two to three consecutive days, using an ambulatory blood pressure monitor (ABPM). We analyzed the data employing A&D software, Cosinor rhythmometry, and SPSS software. Most of the patients displayed a statistically significant circadian rhythm with prominent periodsat 24 h and/or 12 h. The hourly-averaged data in patients exceeded the normal range of BP during the early morning and late afternoon. BP parameters in studied patients were significantly higher than in the controls. The results depicted significant and independent effects of “temporal window” and “disease” on the nocturnal BP profile. Higher BPV and bouts of nocturnal hypotension in diabetic and hypothyroid patients indicate poor BP management. The diagnosis of BP and efficacy of treatment in diabetic and hypothyroid patients could be detected proficiently by ambulatory BP monitoring. Temporal window analysis could be beneficial for tracing nocturnal dipping precisely.
{"title":"Twenty-four-hour and nocturnal ambulatory blood pressure variability patterns in diabetics and hypothyroid patients: Looking through different temporal windows","authors":"R. Sultana, A. Pati","doi":"10.1080/09291016.2022.2044632","DOIUrl":"https://doi.org/10.1080/09291016.2022.2044632","url":null,"abstract":"ABSTRACT This cross-sectional study attempted to determine the 24-h blood pressure variability (BPV) and nocturnal dipping, through designated temporal windows in diabetic and hypothyroid patients. BPV profiles were examined in the cohorts of 26 diabetics and 27 hypothyroid patients on their prescribed medications. Fifty-seven (57) healthy normotensive subjects were treated as controls. We recorded blood pressure (BP)parameters in each subject over at least two to three consecutive days, using an ambulatory blood pressure monitor (ABPM). We analyzed the data employing A&D software, Cosinor rhythmometry, and SPSS software. Most of the patients displayed a statistically significant circadian rhythm with prominent periodsat 24 h and/or 12 h. The hourly-averaged data in patients exceeded the normal range of BP during the early morning and late afternoon. BP parameters in studied patients were significantly higher than in the controls. The results depicted significant and independent effects of “temporal window” and “disease” on the nocturnal BP profile. Higher BPV and bouts of nocturnal hypotension in diabetic and hypothyroid patients indicate poor BP management. The diagnosis of BP and efficacy of treatment in diabetic and hypothyroid patients could be detected proficiently by ambulatory BP monitoring. Temporal window analysis could be beneficial for tracing nocturnal dipping precisely.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1848 - 1862"},"PeriodicalIF":1.1,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47780449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-28DOI: 10.1080/09291016.2022.2046416
Kodai Fukunaga, Y. Takeuchi, C. Yamauchi, A. Takemura
ABSTRACT In the reproductive season, lunar-synchronized fish spawn during species-specific moon phases. It remains unknown how they perceive cues from the moon for initiating gonadal development and subsequent spawning. We hypothesized that fish use moonlight to synchronize reproductive events. Using the honeycomb grouper Epinephelus merra, a tropical Serranidae, spawns around the time of the full moon, we report the successful induction of spawning in this species by controlling light condition at night. Following 3 months of acclimatization under long days (14:10) at 28 ± 1.0°C, mature fish were reared under an artificial full (experimental group) or new (controls) moon during scotophase. Rearing fish under these conditions for 1 month resulted in successful spawning in the experimental group between 21h00 and 01h30. Similar results were obtained when control fish were subdivided into artificial full and new moon groups and reared for an additional month. Fish in the experimental group had a high gonadosomatic index and abundant yolk-laden oocytes in the ovary. Therefore, moonlight triggers gonadal development and subsequent spawning in lunar-synchronized fish with a full-moon preference.
{"title":"Induction of spawning under artificial moonlight in the honeycomb grouper Epinephelus merra, a lunar-synchronized spawner","authors":"Kodai Fukunaga, Y. Takeuchi, C. Yamauchi, A. Takemura","doi":"10.1080/09291016.2022.2046416","DOIUrl":"https://doi.org/10.1080/09291016.2022.2046416","url":null,"abstract":"ABSTRACT In the reproductive season, lunar-synchronized fish spawn during species-specific moon phases. It remains unknown how they perceive cues from the moon for initiating gonadal development and subsequent spawning. We hypothesized that fish use moonlight to synchronize reproductive events. Using the honeycomb grouper Epinephelus merra, a tropical Serranidae, spawns around the time of the full moon, we report the successful induction of spawning in this species by controlling light condition at night. Following 3 months of acclimatization under long days (14:10) at 28 ± 1.0°C, mature fish were reared under an artificial full (experimental group) or new (controls) moon during scotophase. Rearing fish under these conditions for 1 month resulted in successful spawning in the experimental group between 21h00 and 01h30. Similar results were obtained when control fish were subdivided into artificial full and new moon groups and reared for an additional month. Fish in the experimental group had a high gonadosomatic index and abundant yolk-laden oocytes in the ovary. Therefore, moonlight triggers gonadal development and subsequent spawning in lunar-synchronized fish with a full-moon preference.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1880 - 1893"},"PeriodicalIF":1.1,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45154696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT This study explored the related factors affecting the circadian rhythm of blood pressure in patients with essential hypertension. According to blood pressure rhythm, 1007 patients with essential hypertension were divided into dipper (n = 332) and non-dipper group (n = 675). Age, gender, height and other basic information were collected, BMI was calculated, and FPG, TG, TC and other indicators were recorded. Meanwhile, carotid ultrasound, office BP, central hemodynamic parameters, and other indicators were recorded. Logistic regression was used. In comparison, dSBP, dDBP, nSBP, nDBP, nocturnal systolic blood pressure and nocturnal diastolic blood pressure drop rate, 24 hSSD, 24 hDSD and dSSD were statistically significant (P < 0.05). The results showed no distinct differences in CSP, CDP, CPP, AP, Aix and AIx75 in CAP between two groups (P > 0.05). Log regression analysis showed that for every increase in nocturnal SBP, dipper hypertension was more likely to occur than non-dipper hypertension. Circadian rhythm of blood pressure of hypertension in patients with essential hypertension is mainly the influence of circadian blood pressure and nocturnal blood pressure drop rate, especially for the nocturnal systolic blood pressure, so effective control of blood pressure at night could make the circadian rhythm of blood pressure tend to be in dipper type distribution.
{"title":"Study on the related factors affecting the circadian rhythm of blood pressure in patients with essential hypertension","authors":"Muyesaier Maimaitiming, Ping Liang, Mengpo Bai, Huijuan Liu, Xiaohui Liang","doi":"10.1080/09291016.2022.2044630","DOIUrl":"https://doi.org/10.1080/09291016.2022.2044630","url":null,"abstract":"ABSTRACT This study explored the related factors affecting the circadian rhythm of blood pressure in patients with essential hypertension. According to blood pressure rhythm, 1007 patients with essential hypertension were divided into dipper (n = 332) and non-dipper group (n = 675). Age, gender, height and other basic information were collected, BMI was calculated, and FPG, TG, TC and other indicators were recorded. Meanwhile, carotid ultrasound, office BP, central hemodynamic parameters, and other indicators were recorded. Logistic regression was used. In comparison, dSBP, dDBP, nSBP, nDBP, nocturnal systolic blood pressure and nocturnal diastolic blood pressure drop rate, 24 hSSD, 24 hDSD and dSSD were statistically significant (P < 0.05). The results showed no distinct differences in CSP, CDP, CPP, AP, Aix and AIx75 in CAP between two groups (P > 0.05). Log regression analysis showed that for every increase in nocturnal SBP, dipper hypertension was more likely to occur than non-dipper hypertension. Circadian rhythm of blood pressure of hypertension in patients with essential hypertension is mainly the influence of circadian blood pressure and nocturnal blood pressure drop rate, especially for the nocturnal systolic blood pressure, so effective control of blood pressure at night could make the circadian rhythm of blood pressure tend to be in dipper type distribution.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1811 - 1820"},"PeriodicalIF":1.1,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44819292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-24DOI: 10.1080/09291016.2022.2045058
Beatriz Marques Silva, S. Carvalho Bos, António José Vilar Queirós, A. Macedo
ABSTRACT The aim of our study was to explore the contribution of psychological factors for healthy sleep within a sample of one hundred employees (M= 43.4 ± 9.91 years; 74% female) with regular working schedules. Participants completed a set of questionnaires about sociodemographic characteristics, lifestyle behaviours, sleep times, healthy sleep, insomnia, sleep hygiene behaviours, personality traits, work-related cognitions, mood and well-being. Descriptive, correlational and multiple linear regression analyses were performed. Extraversion, perception that work effort was properly rewarded, job autonomy, satisfaction with working conditions, vigour-activity, friendship and well-being were positively associated with healthy sleep; arousal predisposition, neuroticism, can't stop thinking of work, rumination, worry, depression-dejection, tension-anxiety, confusion-bewilderment and fatigue-inertia were negatively associated. Multiple linear regression analyses identified four factors that mostly contributed to healthy sleep (41.3%): neuroticism (R2 = .245, p< .001), worry during sleep (R2 change= .094 p= .001), well-being (R2 change= .044, p= .016) and job autonomy (R2 change= .030, p= .041). Employees with lower levels of neuroticism, less worry during the night, better well-being and higher autonomy at work experienced healthier sleep. To promote healthy sleep among employees with regular/daytime working hours it might be important to consider personality traits, work-related cognitions and well-being.
{"title":"Psychological factors and healthy sleep in a Portuguese sample of employees with regular working hours","authors":"Beatriz Marques Silva, S. Carvalho Bos, António José Vilar Queirós, A. Macedo","doi":"10.1080/09291016.2022.2045058","DOIUrl":"https://doi.org/10.1080/09291016.2022.2045058","url":null,"abstract":"ABSTRACT The aim of our study was to explore the contribution of psychological factors for healthy sleep within a sample of one hundred employees (M= 43.4 ± 9.91 years; 74% female) with regular working schedules. Participants completed a set of questionnaires about sociodemographic characteristics, lifestyle behaviours, sleep times, healthy sleep, insomnia, sleep hygiene behaviours, personality traits, work-related cognitions, mood and well-being. Descriptive, correlational and multiple linear regression analyses were performed. Extraversion, perception that work effort was properly rewarded, job autonomy, satisfaction with working conditions, vigour-activity, friendship and well-being were positively associated with healthy sleep; arousal predisposition, neuroticism, can't stop thinking of work, rumination, worry, depression-dejection, tension-anxiety, confusion-bewilderment and fatigue-inertia were negatively associated. Multiple linear regression analyses identified four factors that mostly contributed to healthy sleep (41.3%): neuroticism (R2 = .245, p< .001), worry during sleep (R2 change= .094 p= .001), well-being (R2 change= .044, p= .016) and job autonomy (R2 change= .030, p= .041). Employees with lower levels of neuroticism, less worry during the night, better well-being and higher autonomy at work experienced healthier sleep. To promote healthy sleep among employees with regular/daytime working hours it might be important to consider personality traits, work-related cognitions and well-being.","PeriodicalId":9208,"journal":{"name":"Biological Rhythm Research","volume":"53 1","pages":"1863 - 1879"},"PeriodicalIF":1.1,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43083985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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