Circadian patterns and photoperiodic modulation of clock gene expression and neuroendocrine hormone secretion in the marine teleost < em > Larimichthys crocea < /em >
This study focuses on exploring the impact of different light regimes (LD: 12 h of light and 12 h of darkness; LL: 24 h of light and 0 h of darkness; DD: 0 h of light and 24 h of darkness) on the expression of clock genes (LcClocka, LcClockb, LcBmal, LcPer1, LcPer2) and the secretion of hormones (melatonin, GnRH, NPY) in the large yellow croaker, Larimichthys crocea. Real-time quantitative PCR (RT-qPCR) and enzyme-linked immunosorbent assays were utilized to assess how photoperiod variations affect clock gene expression and hormone secretion. The results indicate that changes in photoperiod can disrupt the rhythmic pattern...
Source: Chronobiology International - March 22, 2024 Category: Biology Authors: Guangbo Zhang Zhiqing Ye Zhijing Jiang Chenqian Wu Lifei Ge Jixiu Wang Xiuwen Xu Tianming Wang Jingwen Yang Source Type: research
Circadian patterns and photoperiodic modulation of clock gene expression and neuroendocrine hormone secretion in the marine teleost < em > Larimichthys crocea < /em >
This study focuses on exploring the impact of different light regimes (LD: 12 h of light and 12 h of darkness; LL: 24 h of light and 0 h of darkness; DD: 0 h of light and 24 h of darkness) on the expression of clock genes (LcClocka, LcClockb, LcBmal, LcPer1, LcPer2) and the secretion of hormones (melatonin, GnRH, NPY) in the large yellow croaker, Larimichthys crocea. Real-time quantitative PCR (RT-qPCR) and enzyme-linked immunosorbent assays were utilized to assess how photoperiod variations affect clock gene expression and hormone secretion. The results indicate that changes in photoperiod can disrupt the rhythmic pattern...
Source: Chronobiology International - March 22, 2024 Category: Biology Authors: Guangbo Zhang Zhiqing Ye Zhijing Jiang Chenqian Wu Lifei Ge Jixiu Wang Xiuwen Xu Tianming Wang Jingwen Yang Source Type: research
Circadian variations in the elderly: A scoping review
Chronobiol Int. 2024 Mar;41(3):311-328. doi: 10.1080/07420528.2024.2327456. Epub 2024 Mar 19.ABSTRACTThe circadian clock plays important roles in several physiological processes. With aging, some of these circadian rhythms have been shown to be disrupted and suggested contributing to age-related diseases. The aim of this scoping review was to examine and map the existing evidence of circadian differences between young and older people in body fluid composition. Literature search was carried out on PubMed, Embase, Scopus and OpenGrey. The studies were screened based on inclusion and exclusion criteria by two independent rev...
Source: Chronobiology International - March 19, 2024 Category: Biology Authors: Luciana L Ferreira Nadia Rosatto Paolo Marzullo Mattia Bellan Source Type: research
Circadian variations in the elderly: A scoping review
Chronobiol Int. 2024 Mar 19:1-18. doi: 10.1080/07420528.2024.2327456. Online ahead of print.ABSTRACTThe circadian clock plays important roles in several physiological processes. With aging, some of these circadian rhythms have been shown to be disrupted and suggested contributing to age-related diseases. The aim of this scoping review was to examine and map the existing evidence of circadian differences between young and older people in body fluid composition. Literature search was carried out on PubMed, Embase, Scopus and OpenGrey. The studies were screened based on inclusion and exclusion criteria by two independent revi...
Source: Chronobiology International - March 19, 2024 Category: Biology Authors: Luciana L Ferreira Nadia Rosatto Paolo Marzullo Mattia Bellan Source Type: research
Circadian variations in the elderly: A scoping review
Chronobiol Int. 2024 Mar 19:1-18. doi: 10.1080/07420528.2024.2327456. Online ahead of print.ABSTRACTThe circadian clock plays important roles in several physiological processes. With aging, some of these circadian rhythms have been shown to be disrupted and suggested contributing to age-related diseases. The aim of this scoping review was to examine and map the existing evidence of circadian differences between young and older people in body fluid composition. Literature search was carried out on PubMed, Embase, Scopus and OpenGrey. The studies were screened based on inclusion and exclusion criteria by two independent revi...
Source: Chronobiology International - March 19, 2024 Category: Biology Authors: Luciana L Ferreira Nadia Rosatto Paolo Marzullo Mattia Bellan Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
The role of ambient temperature and light as cues in the control of circadian rhythms of Damaraland mole-rat
In this study, we investigated what environmental cue (light or ambient temperature (Ta)) is the strongest modulator of circadian rhythms, by using LA as a proxy, in mammals that experience a lifestyle devoid of light stimuli. To address this question, this study exposed a subterranean African mole-rat species, the Damaraland mole-rat (Fukomys damarensis), to six light and Ta cycles in different combinations. Contrary to previous literature, when provided with a reliable light cue, Damaraland mole rats exhibited nocturnal, diurnal, or arrhythmic LA patterns under constant Ta. While under constant darkness and a 24-hour Ta ...
Source: Chronobiology International - March 6, 2024 Category: Biology Authors: Kerryn L Grenfell Paul J Jacobs Nigel C Bennett Daniel W Hart Source Type: research
