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Lee JH, Moon E, Park J, Oh CE, Hong YR, Yoon M. Optimization of Analysis of Circadian Rest-Activity Rhythm Using Cosinor Analysis in Mice. Psychiatry Investig 2022; 19:380-385. [PMID: 35620823 PMCID: PMC9136527 DOI: 10.30773/pi.2021.0395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/05/2022] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Data processing in analysis of circadian rhythm was performed in various ways. However, there was a lack of evidence for the optimal analysis of circadian rest-activity rhythm. Therefore, we aimed to perform mathematical simulations of data processing to investigate proper evidence for the optimal analysis of circadian rest-activity rhythm. METHODS Locomotor activities of 20 ICR male mice were measured by infrared motion detectors. The data of locomotor activities was processed using data summation, data average, and data moving average methods for cosinor analysis. Circadian indices were estimated according to time block, respectively. Also, statistical F and p-values were calculated by zero-amplitude test. RESULTS The data moving average result showed well-fitted cosine curves independent of data processing time. Meanwhile, the amplitude, MESOR, and acrophase were properly estimated within 800 seconds in data summation and data average methods. CONCLUSION These findings suggest that data moving average would be an optimal method for data processing in a cosinor analysis and data average within 800-second data processing time might be adaptable. The results of this study can be helpful to analyze circadian restactivity rhythms and integrate the results of the studies using different data processing methods.
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Affiliation(s)
- Jung Hyun Lee
- Department of Pediatrics, Kosin University College of Medicine, Busan, Republic of Korea
| | - Eunsoo Moon
- Department of Psychiatry and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea.,Department of Psychiatry, Pusan National University School of Medicine, Yangsan, Republic of Korea
| | - Jeonghyun Park
- Department of Psychiatry and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Chi Eun Oh
- Department of Pediatrics, Kosin University College of Medicine, Busan, Republic of Korea
| | - Yoo Rha Hong
- Department of Pediatrics, Kosin University College of Medicine, Busan, Republic of Korea
| | - Min Yoon
- Department of Applied Mathematics, Pukyung National University, Busan, Republic of Korea
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Ramirez-Plascencia OD, Saderi N, Cárdenas Romero S, Flores Sandoval O, Báez-Ruiz A, Martínez Barajas H, Salgado-Delgado R. Temporal dysregulation of hypothalamic integrative and metabolic nuclei in rats fed during the rest phase. Chronobiol Int 2022; 39:374-385. [PMID: 34906015 DOI: 10.1080/07420528.2021.2002352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Temporal coordination of organisms according to the daytime allows a better performance of physiological processes. However, modern lifestyle habits, such as food intake during the rest phase, promote internal desynchronization and compromise homeostasis and health. The hypothalamic suprachiasmatic nucleus (SCN) synchronizes body physiology and behavior with the environmental light-dark cycle by transmitting time information to several integrative hypothalamic nuclei, such as the paraventricular nucleus (PVN), dorsomedial hypothalamic nucleus (DMH) and median preoptic area (MnPO). The SCN receives metabolic information mainly via Neuropeptide Y (NPY) inputs from the intergeniculate nucleus of the thalamus (IGL). Nowadays, there is no evidence of the response of the PVN, DMH and MnPO when the animals are subjected to internal desynchronization by restricting food access to the rest phase of the day. To explore this issue, we compared the circadian activity of the SCN, PVN, DMH and MnPO. In addition, we analyzed the daily activity of the satiety centers of the brainstem, the nucleus of the tractus solitarius (NTS) and area postrema (AP), which send metabolic information to the SCN, directly or via the thalamic intergeniculate leaflet (IGL). For that, male Wistar rats were assigned to three meal protocols: fed during the rest phase (Day Fed); fed during the active phase (Night Fed); free access to food (ad libitum). After 21 d, the daily activity patterns of these nuclei were analyzed by c-Fos immunohistochemistry, as well as NPY immunohistochemistry, in the SCN. The results show that eating during the rest period produces a phase advance in the activity of the SCN, changes the daily activity pattern in the MnPO, NTS and AP and flattens the c-Fos rhythm in the PVN and DMH. Altogether, these results validate previous observations of circadian dysregulation that occurs within the central nervous system when meals are consumed during the rest phase, a behavior that is involved in the metabolic alterations described in the literature.
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Affiliation(s)
- Oscar D Ramirez-Plascencia
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico.,Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | - Nadia Saderi
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | | | - Omar Flores Sandoval
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Adrián Báez-Ruiz
- Facultad de Ciencias, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
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Nagare R, Woo M, MacNaughton P, Plitnick B, Tinianov B, Figueiro M. Access to Daylight at Home Improves Circadian Alignment, Sleep, and Mental Health in Healthy Adults: A Crossover Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18199980. [PMID: 34639284 PMCID: PMC8507741 DOI: 10.3390/ijerph18199980] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 12/03/2022]
Abstract
As the primary environmental cue for the body’s master biological clock, light–dark patterns are key for circadian alignment and are ultimately fundamental to multiple dimensions of health including sleep and mental health. Although daylight provides the proper qualities of light for promoting circadian alignment, our modern indoor lifestyles offer fewer opportunities for adequate daylight exposure. This field study explores how increasing circadian-effective light in residences affects circadian phase, sleep, vitality, and mental health. In this crossover study, 20 residents spent one week in their apartments with electrochromic glass windows and another week with functionally standard windows with blinds. Calibrated light sensors revealed higher daytime circadian-effective light levels with the electrochromic glass windows, and participants exhibited consistent melatonin onset, a 22-min earlier sleep onset, and higher sleep regularity. In the blinds condition, participants exhibited a 15-min delay in dim light melatonin onset, a delay in subjective vitality throughout the day, and an overall lower positive affect. This study demonstrates the impact of daytime lighting on the physiological, behavioral, and subjective measures of circadian health in a real-world environment and stresses the importance of designing buildings that optimize daylight for human health and wellbeing.
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Affiliation(s)
- Rohan Nagare
- Light and Health Research Center, Department of Population Health, Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (B.P.); (M.F.)
- Correspondence:
| | - May Woo
- View, Inc., Milpitas, CA 95035, USA; (M.W.); (P.M.); (B.T.)
| | - Piers MacNaughton
- View, Inc., Milpitas, CA 95035, USA; (M.W.); (P.M.); (B.T.)
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Barbara Plitnick
- Light and Health Research Center, Department of Population Health, Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (B.P.); (M.F.)
| | | | - Mariana Figueiro
- Light and Health Research Center, Department of Population Health, Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (B.P.); (M.F.)
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New Therapeutic Insight into the Effect of Ma Huang Tang on Blood Pressure and Renal Dysfunction in the L-NAME-Induced Hypertension. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:9980429. [PMID: 34335852 PMCID: PMC8294972 DOI: 10.1155/2021/9980429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/29/2021] [Accepted: 07/03/2021] [Indexed: 12/11/2022]
Abstract
In this study, we evaluated the effect of a traditional herbal formula, Ma Huang Tang (MHT), on blood pressure and vasodilation in a rat model of NG‐nitro‐L‐arginine methylester- (L-NAME-) induced hypertension. We found that MHT-induced vascular relaxation in a dose-dependent manner in rat aortas pretreated with phenylephrine. However, pretreatment of endothelium-intact aortic rings with L‐NAME, an inhibitor of nitric oxide synthesis (NOS), or 1H‐[1, 2, 4]‐oxadiazole‐[4, 3‐α]‐quinoxalin‐1‐one (ODQ), an inhibitor of soluble guanylyl cyclase, significantly abolished vascular relaxation induced by MHT. MHT also increased the production of guanosine 3′,5′-cyclic monophosphate (cGMP) in the aortic rings pretreated with L-NAME or ODQ. To examine the in vivo effects of MHT, Sprague Dawley rats were treated with 40 mg/kg/day L-NAME for 3 weeks, followed by administration of 50 or 100 mg/kg/day MHT for 2 weeks. MHT was found to significantly normalize systolic blood pressure and decreased intima-media thickness in aortic sections of rats treated with L-NAME compared to that of rats treated with L-NAME alone. MHT also restored the L-NAME-induced decrease in vasorelaxation response to acetylcholine and endothelial nitric oxide synthase (eNOS) and endothelin-1 (ET-1) expression. Furthermore, MHT promoted the recovery of renal function, as indicated by osmolality, blood urea nitrogen (BUN) levels, and creatinine clearance. These results suggest that MHT-induced relaxation in the thoracic aorta is associated with activation of the nitric oxide/cGMP pathway. Furthermore, it provides new therapeutic insights into the regulation of blood pressure and renal function in hypertensive patients.
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Daytime Restricted Feeding Modifies the Temporal Expression of CYP1A1 and Attenuated Damage Induced by Benzo[a]pyrene in Rat Liver When Administered before CYP1A1 Acrophase. TOXICS 2021; 9:toxics9060130. [PMID: 34199736 PMCID: PMC8228946 DOI: 10.3390/toxics9060130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/26/2021] [Accepted: 06/02/2021] [Indexed: 11/16/2022]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that heterodimerizes with the AhR nuclear translocator (ARNT) to modulate CYP1A1 expression, a gene involved in the biotransformation of benzo[a]pyrene (BaP). The AhR pathway shows daily variations under the control of the circadian timing system. Daytime restricted feeding (DRF) entrains the expression of genes involved in the processing of nutrients and xenobiotics to food availability. Therefore, we evaluate if temporal AhR, ARNT, and CYP1A1 hepatic expression in rats are due to light/dark cycles or fasting/feeding cycles promoted by DRF. Our results show that AhR oscillates throughout the 24 h period in DRF and ad libitum feeding rats (ALF), showing maximum expression at the same time points. DRF modified the peak of ARNT expression at ZT5; meanwhile, ALF animals showed a peak of maximum expression at ZT17. An increased expression of CYP1A1 was linked to the meal time in both groups of animals. Although a high CYP1A1 expression has been previously associated with BaP genotoxicity, our results show that, compared with the ALF group, DRF attenuated the BaP-CYP1A1 induction potency, the liver DNA-BaP adducts, the liver concentration of unmetabolized BaP, and the blood aspartate aminotransferase and alanine aminotransferase activities when BaP is administered prior to the acrophase of CYP1A1 expression. These results demonstrate that DRF modifies the ARNT and CYP1A1 expression and protects from BaP toxicity.
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Giannetto C, Cannella V, Giudice E, Guercio A, Arfuso F, Piccione G. Clock genes determination in whole blood in goats housed under a long light cycle. Chronobiol Int 2021; 38:1283-1289. [PMID: 34000942 DOI: 10.1080/07420528.2021.1928158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
An innate 24 h circadian clock drives various behavioral processes via expression of clock genes that regulate circadian rhythmicity and temporal signals. Elucidating the gene expression in goats may contribute to improving the knowledge of the regulation of circadian rhythms in this species. Five nonpregnant and nonlactating Maltese goats with no evidence of disease were kept in an indoor pen under the natural long photoperiod (05:05-20:56 h) and natural environmental temperature (23°C and 60% RH). They were fed an Alfalfa hay and concentrate mixture provided twice a day; water was available ad libitum. Blood samples were collected every 4 h over a 48 h period into PAX gene Blood RNA Tubes and stored at -80°C until processing. Clock genes (Clock; Cry1; Cry2; Per2; Per3) were determined using real-time quantitative polymerase chain reaction. During the experimental period, locomotor activity was monitored by an actigraphy-based data logger that records a digitally integrated measure of motor activity as a means to assess indices of discomfort during study and stability of the circadian rhythm. All of the tested genes showed daily rhythmicity in their expression in whole blood. Differences in their circadian parameters were observed. Mesor and amplitude were statistically different among the tested gene (Mesor: F(4.30) = 205.30; p < .0001; amplitude: F(4.30) = 104.80; p < .0001), with each gene showing its acrophase at a different time of day (F(4.30) = 81.17; p < .0001), and differences were observed between the two days of monitoring (F(1.30) = 10.25; p = .003). The application of two-way analysis of variance (ANOVA) on robustness of rhythm values did not show statistical differences among the tested genes (F(4.30) = 1.83; p = .14) and between the two days of monitoring (F(1.30) = 1.16; p = .28). Locomotor activity data recording were in accordance with the data reported in literature, indicating the absence of discomfort or alteration of circadian rhythms during the experimental period. Our results support the presence of a cyclic transcription of clock genes in whole blood of healthy goats housed under a long light natural photoperiod and natural environmental conditions.
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Affiliation(s)
- C Giannetto
- Dipartimento di Scienze Veterinarie, Università degli Studi di Messina, Polo Universitario dell'Annunziata, Messina, Italy
| | - V Cannella
- Istituto Zooprofilattico Sperimentale Della Sicilia "A. Mirri", Palermo, Italy
| | - E Giudice
- Dipartimento di Scienze Veterinarie, Università degli Studi di Messina, Polo Universitario dell'Annunziata, Messina, Italy
| | - A Guercio
- Istituto Zooprofilattico Sperimentale Della Sicilia "A. Mirri", Palermo, Italy
| | - F Arfuso
- Dipartimento di Scienze Veterinarie, Università degli Studi di Messina, Polo Universitario dell'Annunziata, Messina, Italy
| | - G Piccione
- Dipartimento di Scienze Veterinarie, Università degli Studi di Messina, Polo Universitario dell'Annunziata, Messina, Italy
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Rodríguez I, Betancor MB, López-Jiménez JÁ, Esteban MÁ, Sánchez-Vázquez FJ, López-Olmeda JF. Daily rhythms in the morphometric parameters of hepatocytes and intestine of the European sea bass (Dicentrarchus labrax): influence of feeding time and hepatic zonation. J Comp Physiol B 2021; 191:503-515. [PMID: 33619590 DOI: 10.1007/s00360-020-01334-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 11/27/2020] [Accepted: 12/06/2020] [Indexed: 01/21/2023]
Abstract
The digestive system presents daily rhythms at both physiological and histological levels. Although cell morphology rhythms in mammals have been reported, they have scarcely been investigated in fish. The aim of the present research was to investigate the existence of daily rhythms in the morphology of cells in the liver and intestine of a teleost fish, the European sea bass (Dicentrarchus labrax), and how feeding time influences them. Regarding liver, we also focused on differences between the two metabolic zones: perivenous and periportal. For this purpose, fish were divided into two groups: fish fed once a day in the mid-light phase (ML) or the mid-dark phase (MD). After 1 month under each feeding regime, liver and intestine samples were collected every 4 h during a 24-h cycle, and different parameters were studied by light microscopy and image analysis. Daily rhythms occurred in most of the parameters evaluated in the liver. The effect of feeding time depended on the metabolic zone: the rhythms in the periportal zone were synchronized mainly by the light/dark cycle regardless of feeding time, whereas in the perivenous zone, rhythms were influenced more by feeding time. In the intestine, a daily rhythm in villi height was found with acrophases coinciding with feeding time in each group. These findings show for the first time the existence of cellular morphological rhythms in fish liver and intestine, and highlight the interactions between light and feeding cycles in the different metabolic zones of the liver.
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Affiliation(s)
- Inmaculada Rodríguez
- Department of Physiology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain
| | - Mónica B Betancor
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, FK9 4LA, Stirling, Scotland, UK
| | | | - María Ángeles Esteban
- Immunobiology for Aquaculture Group, Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, 30100, Murcia, Spain
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Packard A, Arciniegas AA, Smotherman C. Effectiveness of preventive onabotulinumtoxin A injections for migraine headaches is dependent on the circadian time of administration. Chronobiol Int 2020; 38:576-583. [PMID: 33307854 DOI: 10.1080/07420528.2020.1856128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
We have previously shown that quarterly preventive onabotulinumtoxin A (BTA) injections administered to diurnally active patients for chronic migraines (CM) associate with increased discomfort when performed in the morning. The purpose of this study was to further examine if the effectiveness of preventive BTA injections depends on the procedure's circadian timing. A total of 90 diurnally active patients with a medical history of CM and undergoing BTA injection therapy were enrolled in the study. One hundred and fifty-five units of BTA were administered according to the standardized PREEMPT protocol, either during the course of morning (AM) or afternoon (PM) clinic hours. Patients were asked to keep headache diaries, which were reviewed at the time of their follow-up BTA injections 3 months later. The number of headache days experienced during the first, second, and third month following BTA injection, and the number of headache days during the last 7 days prior to follow-up was collected, as was the self-rating of the effectiveness of BTA treatment. Fifty-five (61%) patients were injected during the AM clinic and 35 (39%) during the PM clinic. There was no difference in gender, race, and age variables between the AM and PM patients. The average total number of headache days during 3 months following injection was significantly higher for the AM-treated compared to the PM-treated patients (22.37 ± 18.85 vs. 10.54 ± 7.5, p =.0007). AM patients also reported a higher number of headache days during each of the 3 months following BTA injection. In contrast, PM patients reported higher effectiveness of preventive BTA treatment. The average number of headache days during the week prior to the follow up, as well as the presence of headache on the day of the follow-up was not significantly different between the AM and PM groups. Scheduling diurnally active CM patients with stable circadian sleep/wake routine for afternoon BTA injections appear to improve the effectiveness of BTA therapy as well as patients' satisfaction with the treatment.
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Affiliation(s)
| | | | - Carmen Smotherman
- Center for Health Equity and Quality Research (CHEQR), University of Florida College of Medicine, Jacksonville, FL
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Yin J, Julius A, Wen JT, Oishi MMK, Brown LK. Actigraphy-based parameter tuning process for adaptive notch filter and circadian phase shift estimation. Chronobiol Int 2020; 37:1552-1564. [DOI: 10.1080/07420528.2020.1805460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jiawei Yin
- Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Agung Julius
- Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - John T. Wen
- Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York, USA
| | - Meeko M. K. Oishi
- Department of Internal Medicine and School of Engineering, University of New Mexico, Albuquerque, New Mexico, USA
| | - Lee K. Brown
- Department of Internal Medicine and School of Engineering, University of New Mexico, Albuquerque, New Mexico, USA
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Bessot N, Polyte R, Quesney M, Bulla J, Gauthier A. Diurnal gait fluctuations in single- and dual- task conditions. Chronobiol Int 2020; 37:836-844. [PMID: 32664758 DOI: 10.1080/07420528.2020.1773493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Gait is one of the most basic movements, and walking activity accomplished in dual task conditions realistically represents daily life mobility. Much is known about diurnal variations of gait components such as muscle power, postural control, and attention. However, paradoxically only little is known about gait itself. The aim of this study was to analyze whether gait parameters show time-of-day fluctuation in simple and dual task conditions. Sixteen young subjects performed sessions at five specific hours (06:00, 10:00, 14:00, 18:00 and 22:00 h), performing a single (walking or counting) and a dual (walking and counting) task. When performing gait in dual task conditions, an additional cognitive task had to be carried out. More precisely, the participants had to count backwards from a two-digit random number by increments of three while walking. Spatio-temporal gait parameters and counting performance data were recorded for analysis. Walking speed significantly decreased, while stride length variability increased when the task condition switched from single to dual. In the single-task condition, diurnal variations were observed in both walking speed and counting speed. Walking speed was higher in the afternoon and in the evening (14:00 and 22:00 h) and lower in the morning (10:00 h). Counting speed was maximum at 10:00 and 14:00 h and minimum at 18:00 h. Nevertheless, no significant diurnal fluctuation was substanytiated in the dual task condition. These results confirm the existing literature about changes in gait between single and dual task conditions. A diurnal pattern of single-task gait could also be highlighted. Moreover, this study suggests that diurnal variations faded in complex dual task gait, when the cognitive load nearly reached its maximum. These findings might be used to reduce the risk for falls, especially of the elderly.
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Affiliation(s)
- N Bessot
- UNICAEN, INSERM, COMETE, GIP CYCERON, Normandie University , Caen, France
| | - R Polyte
- UNICAEN, INSERM, COMETE, GIP CYCERON, Normandie University , Caen, France
| | - M Quesney
- UNICAEN, INSERM, COMETE, GIP CYCERON, Normandie University , Caen, France
| | - J Bulla
- Department of Mathematics, University of Bergen , Bergen, Norway.,Department of Psychiatry and Psychotherapy, University Regensburg , Regensburg
| | - A Gauthier
- UNICAEN, INSERM, COMETE, GIP CYCERON, Normandie University , Caen, France
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Robust light-dark patterns and reduced amyloid load in an Alzheimer's disease transgenic mouse model. Sci Rep 2020; 10:11436. [PMID: 32651420 PMCID: PMC7351709 DOI: 10.1038/s41598-020-68199-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/05/2020] [Indexed: 12/01/2022] Open
Abstract
Circadian disruption resulting from exposure to irregular light–dark patterns and sleep deprivation has been associated with beta amyloid peptide (Aβ) aggregation, which is a major event in Alzheimer’s disease (AD) pathology. We exposed 5XFAD mice and littermate controls to dim-light vs. bright-light photophases to investigate the effects of altering photophase strength on AD-associated differences in cortical Aβ42 levels, wheel-running activity, and circadian free-running period (tauDD). We found that increasing light levels significantly reduced cortical Aβ42 accumulation and activity levels during the light phase of the light:dark cycle, the latter being consistent with decreased sleep fragmentation and increased sleep duration for mice exposed to the more robust light–dark pattern. No significant changes were observed for tauDD. Our results are consistent with circadian pacemaker period being relatively unaffected by Aβ pathology in AD, and with reductions in cortical Aβ loads in AD through tailored lighting interventions.
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García-Gaytán AC, Miranda-Anaya M, Turrubiate I, López-De Portugal L, Bocanegra-Botello GN, López-Islas A, Díaz-Muñoz M, Méndez I. Synchronization of the circadian clock by time-restricted feeding with progressive increasing calorie intake. Resemblances and differences regarding a sustained hypocaloric restriction. Sci Rep 2020; 10:10036. [PMID: 32572063 PMCID: PMC7308331 DOI: 10.1038/s41598-020-66538-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 05/20/2020] [Indexed: 02/08/2023] Open
Abstract
Circadian rhythms are the product of the interaction of molecular clocks and environmental signals, such as light-dark cycles and eating-fasting cycles. Several studies have demonstrated that the circadian rhythm of peripheral clocks, and behavioural and metabolic mediators are re-synchronized in rodents fed under metabolic challenges, such as hyper- or hypocaloric diets and subjected to time-restricted feeding protocols. Despite the metabolic challenge, these approaches improve the metabolic status, raising the enquiry whether removing progressively the hypocaloric challenge in a time-restricted feeding protocol leads to metabolic benefits by the synchronizing effect. To address this issue, we compared the effects of two time-restricted feeding protocols, one involved hypocaloric intake during the entire protocol (HCT) and the other implied a progressive intake accomplishing a normocaloric intake at the end of the protocol (NCT) on several behavioural, metabolic, and molecular rhythmic parameters. We observed that the food anticipatory activity (FAA) was driven and maintained in both HCT and NCT. Resynchronization of hepatic molecular clock, free fatty acids (FFAs), and FGF21 was elicited closely by HCT and NCT. We further observed that the fasting cycles involved in both protocols promoted ketone body production, preferentially beta-hydroxybutyrate in HCT, whereas acetoacetate was favoured in NCT before access to food. These findings demonstrate that time-restricted feeding does not require a sustained calorie restriction for promoting and maintaining the synchronization of the metabolic and behavioural circadian clock, and suggest that metabolic modulators, such as FFAs and FGF21, could contribute to FAA expression.
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Affiliation(s)
- Ana Cristina García-Gaytán
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México
| | - Manuel Miranda-Anaya
- Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México
| | - Isaías Turrubiate
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México
| | - Leonardo López-De Portugal
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México
| | | | - Amairani López-Islas
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México
| | - Mauricio Díaz-Muñoz
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México
| | - Isabel Méndez
- Instituto de Neurobiología, Universidad Nacional Autónoma de México (UNAM), Campus UNAM-Juriquilla, Querétaro, 76230, México.
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García-Gaytán AC, Miranda-Anaya M, Turrubiate I, López-De Portugal L, Bocanegra-Botello GN, López-Islas A, Díaz-Muñoz M, Méndez I. Synchronization of the circadian clock by time-restricted feeding with progressive increasing calorie intake. Resemblances and differences regarding a sustained hypocaloric restriction. Sci Rep 2020. [DOI: https:/doi.org/10.1038/s41598-020-66538-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
AbstractCircadian rhythms are the product of the interaction of molecular clocks and environmental signals, such as light-dark cycles and eating-fasting cycles. Several studies have demonstrated that the circadian rhythm of peripheral clocks, and behavioural and metabolic mediators are re-synchronized in rodents fed under metabolic challenges, such as hyper- or hypocaloric diets and subjected to time-restricted feeding protocols. Despite the metabolic challenge, these approaches improve the metabolic status, raising the enquiry whether removing progressively the hypocaloric challenge in a time-restricted feeding protocol leads to metabolic benefits by the synchronizing effect. To address this issue, we compared the effects of two time-restricted feeding protocols, one involved hypocaloric intake during the entire protocol (HCT) and the other implied a progressive intake accomplishing a normocaloric intake at the end of the protocol (NCT) on several behavioural, metabolic, and molecular rhythmic parameters. We observed that the food anticipatory activity (FAA) was driven and maintained in both HCT and NCT. Resynchronization of hepatic molecular clock, free fatty acids (FFAs), and FGF21 was elicited closely by HCT and NCT. We further observed that the fasting cycles involved in both protocols promoted ketone body production, preferentially beta-hydroxybutyrate in HCT, whereas acetoacetate was favoured in NCT before access to food. These findings demonstrate that time-restricted feeding does not require a sustained calorie restriction for promoting and maintaining the synchronization of the metabolic and behavioural circadian clock, and suggest that metabolic modulators, such as FFAs and FGF21, could contribute to FAA expression.
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Borisenkov MF, Vetosheva VI, Kuznetsova YS, Khodyrev GN, Shikhova AV, Popov SV, Pechеrkina AA, Dorogina OI, Symaniuk EE. Chronotype, social jetlag, and time perspective. Chronobiol Int 2019; 36:1772-1781. [PMID: 31658823 DOI: 10.1080/07420528.2019.1683858] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The phase of entrainment (chronotype) is known to be associated with time perspective (TP), suggesting that the state of circadian system is involved in the long-term planning of human life. However, little is known regarding the influence of circadian misalignment on long-term planning ability. The aim of this study was to investigate the association between social jetlag (SJL) and TP. A total of 1064 schoolchildren and university students (mean age ± standard deviation, 19.2 ± 2.9 years; range, 15-25 years; females, 71.7%) from four cities in the Russian Federation located between 56.9 and 61.7 degrees North completed the Munich ChronoType Questionnaire, the Pittsburgh Sleep Quality Index, the Seasonal Pattern Assessment Questionnaire, and Zimbardo Time Perspective Inventory. Study participants also indicated personal data (age, sex, height weight, place of residence, and achievements). A multiple regression analysis with stepwise inclusion of predictors in the model was performed to evaluate associations between time perspective characteristics (dependent variables) and predictor variables. The change in R2 was used as the measure of effect size. Chronotype was found to be a moderate predictor of future TP (B = 0.034; ΔR2 = 0.037). In addition, sleep quality was found to be a moderate predictor of past negative (B = 0.043; ΔR2 = 0.074), present fatalistic (B = 0.021; ΔR2 = 0.035), and deviation from balanced TP (B = 0.034; ΔR2 = 0.066). Mood seasonality was a moderate predictor of present hedonistic TP (B = 0.016; ΔR2 = 0.038), and social jetlag was a weak predictor of present fatalistic (B = 0.052; ΔR2 = 0.019), future (B = -0.033; ΔR2 = 0.004), and deviation from balanced TP (B = 0.047; ΔR2 = 0.012). In conclusion, this study found a weak but significant association between social jetlag and TP in adolescents and young adults.
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Affiliation(s)
- Mikhail F Borisenkov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia.,Ural Institute of Humanities, Ural Federal University, Yekaterinburg, Russia
| | - Valentina I Vetosheva
- Institute of Pedagogy and Psychology, Pitirim Sorokin Syktyvkar State University, Syktyvkar, Russia
| | - Yekaterina S Kuznetsova
- Institute of Pedagogy and Psychology, Pitirim Sorokin Syktyvkar State University, Syktyvkar, Russia
| | - Grigoriy N Khodyrev
- Institute of Biology and Biotechnology, Vyatka State University, Kirov, Russia
| | - Asya V Shikhova
- Institute of Biology and Biotechnology, Vyatka State University, Kirov, Russia
| | - Sergey V Popov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia.,Ural Institute of Humanities, Ural Federal University, Yekaterinburg, Russia
| | - Anna A Pechеrkina
- Ural Institute of Humanities, Ural Federal University, Yekaterinburg, Russia
| | - Olga I Dorogina
- Ural Institute of Humanities, Ural Federal University, Yekaterinburg, Russia
| | - Elvira E Symaniuk
- Ural Institute of Humanities, Ural Federal University, Yekaterinburg, Russia
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15
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Yanamandra U, Bhattachar SA, Katoch D, Yanamandra S, Shankar S, Kumari VKL, Ayekappam A, Kumar S, Patyal S, Nair V. Anthropometric evaluation of school-going native highlanders (4-19 years of age) from the Leh-Ladakh region in India. Int J Adolesc Med Health 2019; 33:/j/ijamh.ahead-of-print/ijamh-2018-0253/ijamh-2018-0253.xml. [PMID: 31075082 DOI: 10.1515/ijamh-2018-0253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 12/11/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND The native population of the Ladakh region faces the unique challenges of a high-altitude environment with distinct physiological adaptations in comparison with lowlanders. However, no comprehensive data on standard anthropometric parameters for the school-going children in this populace is available. OBJECTIVES We aimed to study the various anthropometric parameters in the school-going native highlander population and computed measures of central tendency. The nutritional status of the community was also be determined by comparing with World Health Organization (WHO) scores for height for age (HFA), weight for age (WFA) and body mass index (BMI) for age. DESIGN A cross-sectional, descriptive study was devised to assess the anthropometric parameters. We measured height, weight, mid-upper circumference (MUAC), triceps skinfold (TSF) thickness, sub-scapular skinfold (SSF) thickness, waist, hip and abdominal circumference. Statistical analysis was conducted to determine the mean [±2 standard deviation (SD)], median, range, minimum and maximum. The z-scores for HFA, WFA and BMI for age was computed using WHO reference data. SUBJECTS A total of 346 school-going native highlander children (4-19 years of age) were studied. RESULTS Among the study population, the mean height was 141.17 ± 39.08 cm, the mean weight was 38.27 ± 25.40 kg. The gender difference in height, MUAC, sub-scapular skinfold (SSF) thickness, TSF thickness and the abdominal circumference was found to be statistically significant. Of the subjects 23.46% were stunted (i.e. HFA below -2 SD of the WHO standard) and 7.01% were underweight (WFA below -2 SD of the WHO standard). CONCLUSION The nutritional status of the Ladakhi population was assessed by comparison with the WHO reference data. Nomograms for anthropometric data in school-going children (4-19 years of age) of Ladakh were created. These can be used for further studies and planning targeted intervention strategies on this geographically isolated and evolutionary distinct highland population.
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Affiliation(s)
- Uday Yanamandra
- Department of Hematology, Army Research and Referral Hospital, New Delhi, India, Phone: +91-8195035551.,Department of Medicine, 153 General Hospital, Leh, India
| | | | - Deeksha Katoch
- Army Hospital (Research and Referral), Dhaula Kuan, New Delhi, India
| | | | - Siddharth Shankar
- Manipal University, Kasturba Medical College Manipal, Internal Medicine, Manipal, Karnataka, India
| | - V K Lalitha Kumari
- Military Nursing Services, Integrated HQ, Ministry of Defence, New Delhi, India
| | - Angella Ayekappam
- Military Nursing Services, Integrated HQ, Ministry of Defence, New Delhi, India
| | - Suman Kumar
- Army Hospital (Research and Referral), Dhaula Kuan, New Delhi, India
| | | | - Velu Nair
- Department of Medicine, Armed Forces Medical College, Pune, India
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16
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The Effects of Indoor High Temperature on Circadian Rhythms of Human Work Efficiency. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16050759. [PMID: 30832370 PMCID: PMC6427146 DOI: 10.3390/ijerph16050759] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/04/2019] [Accepted: 02/26/2019] [Indexed: 12/02/2022]
Abstract
Indoor non-air-conditioned environments widely exist in the summer high temperature weather. The work efficiency of the people who stay indoors for a long time is seriously affected by the indoor high temperature. In this paper, the changes of the circadian rhythms of work efficiency in indoor high temperature environments were studied. Ten healthy subjects (five males and five females) were selected in the experiments randomly. In each experiment day, the maximum hourly outdoor temperature was selected as 28 °C, 32 °C, 36 °C, and 38 °C, respectively, to determine the experiment conditions. In each experiment condition, subjects’ response time, accuracy rate, grip strength, work willingness, and physiological parameters were monitored for 24 consecutive hours. Meanwhile, the hourly outdoor temperatures of the experiment day were accessed from the weather report during the experiment. Then the cosinor method and statistical method were adopted. The results indicated that the response time, grip strength, and work willingness followed circadian rhythms. However, the accuracy rates of the Stroop color-word test (SCWT) and numeral inspection task (NIT) did not show an obvious circadian rhythm. The effects of high temperature on the circadian rhythms of grip strength and work willingness were mainly reflected in the decreases of the median and amplitude. The effects on the response time were mainly reflected in the decrease of the median. In addition, forehead temperature showed a significant negative correlation to response time, and it could be considered as a predictor to assess the level of work efficiency. This study gives an alternative method to replace direct measurement of the ability indices at work site and provides basic data of 24 consecutive hours, for showing changes in human work efficiency. It could be helpful to predict the low performance in advance to reduce occupational accidents.
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17
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Yanamandra U, Bhattachar SA, Das SK, Yanamandra S, Kumari VKL, Ayekappam A, Kumar S, Malhotra P, Varma S, Varma N, Nair V. Hematological Parameters in Native Highlanders of Ladakh Aged 4-19 Years. Indian J Hematol Blood Transfus 2018; 34:731-738. [PMID: 30369750 DOI: 10.1007/s12288-018-0967-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 05/07/2018] [Indexed: 11/28/2022] Open
Abstract
Hematological adaptations to high altitude (HA) are long studied but are focused either on lowlanders visiting HA or native highlanders from Andes and Tibet. The literature on native highlanders from the Indian subcontinent or paediatric highlanders is scarce. We aimed at assessing hematological parameters in native highlanders of Ladakh, India, aged 4-19 years and derive nomograms in an age stratified manner specific to these native highlanders. A total of 335 self-reported healthy native highlanders of Ladakh, without any known comorbidities and not on hematinic nor any drugs in the age group of 4-19 years were included in the study. Complete hemogram including red cell indices was measured. R ver 3.4.0 was used to compare the hematological parameters based on gender/age stratification, pubertal and nutritional status. The hematological reference ranges were created for various parameters in the paediatric population. The mean (SD) haemoglobin (Hb) concentration was 14.74 (2.07) gm/dL. The mean hematocrit (Hct) was 40.43 (5.57%) %, mean corpuscular volume (MCV) was 81.87 (7.22) fL, white blood cell (WBC) count was 7596 (2172) cells/μL and platelets was 378.4 (152.8) × 103/μL. Hct and MCV increased with age. Hb concentration, Hct, and MCV in girls was significantly lower than boys. Severely underweight subjects (body mass index < 16) showed significantly higher platelet counts compared to their nourished counterparts. The hematological nomograms for the native paediatric highlanders from Ladakh, India have been reported in this study.
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Affiliation(s)
- Uday Yanamandra
- 1Department of Hematology, Army Hospital (Research & Referral), Delhi Cantt, India
| | | | | | | | - V K Lalitha Kumari
- 5Military Nursing Services, Integrated HQ, Ministry of Defence, New Delhi, India
| | - Angella Ayekappam
- 5Military Nursing Services, Integrated HQ, Ministry of Defence, New Delhi, India
| | - Suman Kumar
- 6Army Hospital (Research & Referral), Delhi, India
| | | | - Subhash Varma
- 7Department of Internal Medicine, PGIMER, Chandigarh, India
| | - Neelam Varma
- 8Department of Hematology, PGIMER, Chandigarh, India
| | - Velu Nair
- 9Director General Medical Services (Army), Integrated Headquarters Ministry of Defence, Delhi, India
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18
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Sahbaz C, Devetzioglou T, Ozcelik AM, Kırpınar I. Circadian preferences are associated with vegetative symptoms and comorbid medical diseases in patients with major depression. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1490867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Cigdem Sahbaz
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
| | - Tougmpa Devetzioglou
- Department of Psychiatry, St Pancras Hospital, Camden and Islington NHS Trust, London, UK
| | | | - Ismet Kırpınar
- Department of Psychiatry, Bezmialem Vakif University, Istanbul, Turkey
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19
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Wu T, Fu Z. Time-dependent glucocorticoid administration differently affects peripheral circadian rhythm in rats. Acta Biochim Biophys Sin (Shanghai) 2017; 49:1122-1128. [PMID: 29121225 DOI: 10.1093/abbs/gmx115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Indexed: 01/09/2023] Open
Abstract
There is a growing recognition that glucocorticoid (GC) acts as an internal timing signal for peripheral circadian oscillators. However, the transcription process of GC-related clock gene in the peripheral tissues is not fully understood. The present study was designed to explore the potential role of clock genes in the GC-induced peripheral circadian gene expression in vivo. Real-time RT-PCR analysis indicated that the transcript levels of Per1 and Dec1 were rapidly up-regulated within 0.5 and 1 h in the heart and kidney respectively after stimulation with dexamethasone (Dex). These results suggest that Per1 and Dec1 serve as the primary and secondary responsers respectively in initiating the GC-induced peripheral circadian gene expression. By comparing the effects of the different GC administration schedules on the circadian rhythm of clock genes in peripheral tissues in rats, we found that the circadian phases of Bmal1 and Per1 were shifted more in the ZT0 (endogenous valley time) Dex stimulation group than in the ZT12 (endogenous peak time) Dex stimulation group in heart and kidney under the normal LD cycle. Under the jet lag condition, the circadian phases of Bmal1 and Per1 were also shifted more in the ZT0 Dex stimulation group than in the ZT12 Dex stimulation group. Therefore, the GC stimulation in the endogenous valley time caused circadian disorder in the normal LD cycle, but it might benefit the circadian resetting of peripheral clocks under the LD reversal condition.
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Affiliation(s)
- Tao Wu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
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20
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Oginska H, Mojsa-Kaja J, Mairesse O. Chronotype description: In search of a solid subjective amplitude scale. Chronobiol Int 2017; 34:1388-1400. [DOI: 10.1080/07420528.2017.1372469] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Halszka Oginska
- Institute of Applied Psychology, Jagiellonian University, Krakow, Poland
| | - Justyna Mojsa-Kaja
- Institute of Applied Psychology, Jagiellonian University, Krakow, Poland
| | - Olivier Mairesse
- Vrije Universiteit Brussel, Faculty of Psychology and Educational Sciences, Department of Experimental and Applied Psychology, Brussels, Belgium
- Brugmann University Hospital, Sleep Laboratory and Unit for Chronobiology (U78), Brussels, Belgium
- Royal Military Academy, Department LIFE, VItal signs and PERformance monitoring (VIPER), Brussels, Belgium
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21
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Molina-Aguilar C, Guerrero-Carrillo MDJ, Espinosa-Aguirre JJ, Olguin-Reyes S, Castro-Belio T, Vázquez-Martínez O, Rivera-Zavala JB, Díaz-Muñoz M. Time-caloric restriction inhibits the neoplastic transformation of cirrhotic liver in rats treated with diethylnitrosamine. Carcinogenesis 2017; 38:847-858. [PMID: 28535183 DOI: 10.1093/carcin/bgx052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 05/17/2017] [Indexed: 01/27/2023] Open
Abstract
Hepatocellular cancer is the most common type of primary liver cancer. Cirrhosis is the main risk factor that generates this malady. It has been proven that caloric restriction protocols and restricted feeding schedules are protective in experimental carcinogenic models. We tested the influence of a time-caloric restriction protocol (2 h of food access during the daytime for 18 weeks) in an experimental model of cirrhosis-hepatocarcinoma produced by weekly administration of diethylnitrosamine. Our results indicate that time-caloric restriction reduced hepatomegaly and prevented the increase in blood leukocytes promoted by diethylnitrosamine. Strikingly, time-caloric restriction preserved functional and histological characteristics of the liver in fibrotic areas compared to the cirrhotic areas of the Ad Libitum-fed group. Tumoural masses in the restricted group were well differentiated; consider a neoplastic or early stage of HCC. However, time-caloric restriction enhanced collagen deposits. With regard to the cancerous process, food restriction prevented systemic inflammation and an increase in carcinoembryonic antigen, and it favoured the occurrence of diffuse multinodular tumours. Histologically, it prevented hepatocyte inflammation response, the regenerative process, and neoplastic transformation. Time-caloric restriction stimulated circadian synchronization in fibrotic and cancerous liver sections, and it increased BMAL1 clock protein levels. We conclude that time-caloric restriction prevents fibrosis from progressing into cirrhosis, thus avoiding chronic inflammation and regenerative processes. It also prevents, probably through circadian entrainment and caloric restriction, the neoplastic transformation of tumoural lesions induced by diethylnitrosamine.
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Affiliation(s)
- Christian Molina-Aguilar
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, México
| | | | - Jesús Javier Espinosa-Aguirre
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Sitlali Olguin-Reyes
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Thania Castro-Belio
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, México
| | - Olivia Vázquez-Martínez
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, México
| | - Julieta Berenice Rivera-Zavala
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, México
| | - Mauricio Díaz-Muñoz
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, México
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22
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Panev AS, Tserne TA, Polugrudov AS, Bakutova LA, Petrova NB, Tatarinova OV, Kolosova ON, Borisenkov MF. Association of chronotype and social jetlag with human non-verbal intelligence. Chronobiol Int 2017; 34:977-980. [DOI: 10.1080/07420528.2017.1324473] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- A. S. Panev
- Department of Molekular Immunology and Biotechnology, Institute of Physiology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, Syktyvkar, Russia
- Institute of Natural Sciences, Pitirim Sorokin Syktyvkar State University, Syktyvkar, Russia
| | - T. A. Tserne
- Department of Molekular Immunology and Biotechnology, Institute of Physiology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, Syktyvkar, Russia
| | - A. S. Polugrudov
- Department of Molekular Immunology and Biotechnology, Institute of Physiology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, Syktyvkar, Russia
| | - L. A. Bakutova
- Department of Molekular Immunology and Biotechnology, Institute of Physiology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, Syktyvkar, Russia
| | - N. B. Petrova
- Institute of Natural Sciences, Pitirim Sorokin Syktyvkar State University, Syktyvkar, Russia
| | - O. V. Tatarinova
- Department of Epidemiology of Chronic non-infectious Disease, Yakut Scientific Center of Complex Medical Problems, Yakutsk, Russia
| | - O. N. Kolosova
- Laboratory of Ecological and Medical Biochemistry, Biotechnology and Radiobiology, Institute for Biological Problems of Cryolithozone Siberian Branch of Russian Academy of Sciences, Yakutsk, Russia
| | - M. F. Borisenkov
- Department of Molekular Immunology and Biotechnology, Institute of Physiology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, Syktyvkar, Russia
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23
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Daytime restricted feeding modifies the daily regulation of fatty acid β-oxidation and the lipoprotein profile in rats. Br J Nutr 2017; 117:930-941. [PMID: 28482939 DOI: 10.1017/s0007114517000800] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Daytime restricted feeding (2 h of food access from 12.00 to 14.00 hours for 3 weeks) is an experimental protocol that modifies the relationship between metabolic networks and the circadian molecular clock. The precise anatomical locus that controls the biochemical and physiological adaptations to optimise nutrient use is unknown. We explored the changes in liver oxidative lipid handling, such as β-oxidation and its regulation, as well as adaptations in the lipoprotein profile. It was found that daytime restricted feeding promoted an elevation of circulating ketone bodies before mealtime, an altered hepatic daily rhythmicity of 14CO2 production from radioactive palmitic acid, and an up-regulation of the fatty acid oxidation activators, the α-subunit of AMP-activated protein kinase (AMPK), the deacetylase silent mating type information regulation homolog 1, and the transcriptional factor PPARγ-1α coactivator. An increased localisation of phosphorylated α-subunit of AMPK in the periportal hepatocytes was also observed. Liver hepatic lipase C, important for lipoprotein transformation, showed a change of daily phase with a peak at the time of food access. In serum, there was an increase of LDL, which was responsible for a net elevation of circulating cholesterol. We conclude that our results indicate an enhanced fasting response in the liver during daily synchronisation to food access, which involves altered metabolic and cellular control of fatty acid oxidation as well a significant elevation of serum LDL. These adaptations could be part of the metabolic input that underlies the expression of the food-entrained oscillator.
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24
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Jay SM, Gander PH, Eng A, Cheng S, Douwes J, Ellison-Loschmann L, McLean D, Pearce N, ‘tMannetje A. New Zealanders working non-standard hours also have greater exposure to other workplace hazards. Chronobiol Int 2017; 34:519-526. [DOI: 10.1080/07420528.2017.1307850] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sarah M. Jay
- School of Health Medical and Applied Sciences, CQUniversity, Appleton Institute, Adelaide, Australia
| | | | - Amanda Eng
- Massey University Centre for Public Health Research, Wellington, New Zealand
| | - Soo Cheng
- Massey University Centre for Public Health Research, Wellington, New Zealand
| | - Jeroen Douwes
- Massey University Centre for Public Health Research, Wellington, New Zealand
| | | | - Dave McLean
- Massey University Centre for Public Health Research, Wellington, New Zealand
| | - Neil Pearce
- Massey University Centre for Public Health Research, Wellington, New Zealand
- London School of Hygiene and Tropical Medicine, London, United Kingdom of Great Britain and Northern Ireland
| | - Andrea ‘tMannetje
- Massey University Centre for Public Health Research, Wellington, New Zealand
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25
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Touitou Y, Mauvieux B, Reinberg A, Dispersyn G. Disruption of the circadian period of body temperature by the anesthetic propofol. Chronobiol Int 2016; 33:1247-1254. [DOI: 10.1080/07420528.2016.1208664] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yvan Touitou
- Unité de Chronobiologie, Fondation A. de Rothschild, Paris, France
| | - Benoit Mauvieux
- Unité de Chronobiologie, Fondation A. de Rothschild, Paris, France
- INSERM UMR U1075, Université de Caen, Caen, France
| | - Alain Reinberg
- Unité de Chronobiologie, Fondation A. de Rothschild, Paris, France
| | - Garance Dispersyn
- Institut de Recherche Biomédicale des Armées (IRBA), Brétigny sur Orge, France
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26
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Polugrudov AS, Panev AS, Smirnov VV, Paderin NM, Borisenkov MF, Popov SV. Wrist temperature and cortisol awakening response in humans with social jetlag in the North. Chronobiol Int 2016; 33:802-9. [DOI: 10.3109/07420528.2016.1168829] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Artem S. Polugrudov
- Institute of Physiology, Komi Science Centre, the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia
| | - Alexander S. Panev
- Institute of Physiology, Komi Science Centre, the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia
| | - Vasily V. Smirnov
- Institute of Physiology, Komi Science Centre, the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia
| | - Nikita M. Paderin
- Institute of Physiology, Komi Science Centre, the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia
| | - Mikhail F. Borisenkov
- Institute of Physiology, Komi Science Centre, the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia
| | - Sergey V. Popov
- Institute of Physiology, Komi Science Centre, the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia
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Reutrakul S, Siwasaranond N, Nimitphong H, Saetung S, Chirakalwasan N, Ongphiphadhanakul B, Thakkinstian A, Hood MM, Crowley SJ. Relationships among sleep timing, sleep duration and glycemic control in Type 2 diabetes in Thailand. Chronobiol Int 2015; 32:1469-76. [DOI: 10.3109/07420528.2015.1105812] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Takao M, Miyajima H, Shinagawa T. Diurnal modulation of visual motion prediction. Chronobiol Int 2015; 32:1019-23. [PMID: 26158220 DOI: 10.3109/07420528.2015.1053564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Predicting the future position of moving objects is an essential cognitive function used for many daily activities, such as driving, walking and reaching. The experiments described in this paper show a marked diurnal modulation of motion prediction in inflating image perception. This motion prediction was shown to be more accurate in the afternoon than in the morning. In contrast, such modulation could not be found in deflating image perception. Such diurnal fluctuations may be mediated by circadian properties of retinal cone photoreceptors.
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Affiliation(s)
- Motoharu Takao
- a Department of Human and Information Science , Tokai University , Kanagawa , Japan
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Zhong Y, Zhang R, Li K, Qi R, Zhang Z, Huang Q, Lu G. Altered cortical and subcortical local coherence in PTSD: evidence from resting-state fMRI. Acta Radiol 2015; 56:746-53. [PMID: 24973255 DOI: 10.1177/0284185114537927] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 05/09/2014] [Indexed: 01/23/2023]
Abstract
BACKGROUND Post-traumatic stress disorder (PTSD) is often characterized by region-specific brain activation/deactivation and functional abnormalities in corticolimbic circuitry, as elucidated by task-dependent functional neuroimaging. However, little is known about the abnormalities in the local coherence of cortical and subcortical activity occurring during the resting state. PURPOSE To evaluate the functional discrepancy of local coherence between cortical and subcortical regions in PTSD patients using resting-state functional magnetic resonance imaging (fMRI). MATERIAL AND METHODS Resting-state fMRI (RS-fMRI) was performed on 14 outpatients with PTSD, along with 14 age- and sex-matched normal control subjects. Regional homogeneity (ReHo), a measurement of the coherence of spontaneous RS-fMRI signal oscillations within spatially neighboring voxels, was examined. RESULTS Compared with the normal controls, PTSD patients showed increased local coherence in subcortical regions, including amygdala, hippocampus, thalamus, and putamen, and decreased local coherence in cortical regions, including medial prefrontal cortex and dorsolateral prefrontal cortex. Moreover, a correlation analysis of the ReHo measurement versus the severity of the disorder was performed, and highly positive correlation were observed in the right amygdala. CONCLUSION The present study identified a functional discrepancy of local coherence between cortical and subcortical regions in PTSD patients compared with normal controls. The findings revealed that resting-state abnormalities might lead to further improvement of the understanding of the neural substrates of cognitive impairment and symptoms in PTSD.
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Affiliation(s)
- Yuan Zhong
- Department of Medical Imaging, Jinling Hospital, Clinical school of Medical College, Nanjing University, Nanjing, PR China
- School of Psychology, Nanjing Normal University, Nanjing, PR China
| | - Ruiting Zhang
- School of Psychology, Nanjing Normal University, Nanjing, PR China
| | - Kai Li
- Department of Pharmacology, Suzhou University, Suzhou, PR China
| | - Rongfeng Qi
- Department of Medical Imaging, Jinling Hospital, Clinical school of Medical College, Nanjing University, Nanjing, PR China
| | - Zhiqiang Zhang
- Department of Medical Imaging, Jinling Hospital, Clinical school of Medical College, Nanjing University, Nanjing, PR China
| | - Qingling Huang
- Department of Radiology, affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China
| | - Guangming Lu
- Department of Medical Imaging, Jinling Hospital, Clinical school of Medical College, Nanjing University, Nanjing, PR China
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Oberlinner C, Yong M, Nasterlack M, Pluto RP, Lang S. Combined effect of back pain and stress on work ability. Occup Med (Lond) 2015; 65:147-53. [DOI: 10.1093/occmed/kqu190] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sani M, Sebai H, Ghanem-Boughanmi N, Boughattas NA, Ben-Attia M. Circadian (about 24-hour) variation in malondialdehyde content and catalase activity of mouse erythrocytes. Redox Rep 2015; 20:26-32. [PMID: 25142617 PMCID: PMC6837743 DOI: 10.1179/1351000214y.0000000102] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Lipid peroxidation is a part of normal metabolism that may cause biological molecule damage leading to the formation of several specific metabolites that include aldehydes of variable chains, such as malondialdehyde (MDA). These biological effects are controlled in vivo by a wide spectrum of enzymatic and non-enzymatic defense mechanisms among which catalase (CAT) is considered as an important regulator of oxidative stress. The present study aimed to investigate the possible relationship between the temporal patterns of the formation of MDA and the activity of CAT in the erythrocytes of mice. Twenty-four-hour studies were performed on male Swiss albino mice, 12 weeks old, synchronized to a 12:12 light: dark cycle for 3 weeks. Different and comparable groups of animals (n = 10) were sacrificed at an interval of 4 hours (1, 5, 9, 13, 17, and 21 hours after light onset (HALO)). The levels of erythrocyte MDA concentration and CAT activity both significantly (analysis of variance: F = 6.4, P < 0.002) varied according to the time of sampling under non-stressed conditions. The characteristics of the waveform describing the temporal patterns differed between the two studied variables, e.g. MDA content showing one peak (≅21 HALO) and CAT activity showing three peaks (≅9, 17, and 21 HALO). Cosinor analysis revealed a significant (adjusted Cosinor: P ≤ 0.018) circadian (τ ≅ 24 hours) rhythm in MDA level and no statistically significant rhythmicity in CAT activity. The differences and the absence of correlation between the curve patterns of erythrocyte MDA content and CAT activity under physiological conditions are hypothesized to explain that variation in lipid peroxidation may depend on several factors. Moreover, the identification of peak/trough levels of MDA accumulation in erythrocytes may reflect the degree of oxidative stress in these blood cells. In addition, the observed significant time-of-day effect suggests that, in both clinical and scientific settings, appropriate comparison of MDA production and CAT activity levels can only be achieved on data obtained at the same time of day.
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Affiliation(s)
- Mamane Sani
- UMR Biosurveillance et Toxicologie EnvironnementaleDépartement de Biologie, Faculté des Sciences et Techniques deMaradi, Maradi, Niger
| | - Hichem Sebai
- UR Ethnobotanie et Stress Oxydant Département des Sciences de la Vie, Faculté des Sciences de Bizerte, Zarzouna, Tunisia
| | - Néziha Ghanem-Boughanmi
- UR Ethnobotanie et Stress Oxydant Département des Sciences de la Vie, Faculté des Sciences de Bizerte, Zarzouna, Tunisia
| | | | - Mossadok Ben-Attia
- Laboratoire de Biosurveillance de l'Environnement, Faculté des Sciences de Bizerte, Zarzouna, Tunisia
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Grimaldi D, Provini F, Pierangeli G, Mazzella N, Zamboni G, Marchesini G, Cortelli P. Evidence of a diurnal thermogenic handicap in obesity. Chronobiol Int 2014; 32:299-302. [PMID: 25414044 DOI: 10.3109/07420528.2014.983603] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A thermogenic handicap has been proposed as potential contributor to weight gain in obese subjects but results from clinical studies are inconclusive. We tested whether diurnal and nocturnal body core temperature (BcT) measured for 20-h differed in nine obese subjects compared with 12 lean healthy controls when studied at rest under strictly controlled conditions. BcT was significantly reduced (∼0.35 °C) in obese subjects only during diurnal hours while during nocturnal hours BcT pattern was identical in the two groups. Our preliminary data indicate that obesity is associated with a diurnal thermogenic handicap which could play a role in favoring weight gain by lowering whole-body energy expenditure.
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Affiliation(s)
- Daniela Grimaldi
- Department of Biomedical and NeuroMotor Sciences, Clinica Neurologica, University of Bologna - Alma Mater Studiorum , Bologna , Italy
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Everitt JI. The Future of Preclinical Animal Models in Pharmaceutical Discovery and Development. Toxicol Pathol 2014; 43:70-7. [DOI: 10.1177/0192623314555162] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Animal models have provided an important tool to help make the decision to take potential therapies from preclinical studies to humans. In the past several years, the strong reliance of the pharmaceutical discovery and development process on the use of animal models has come under increasing scrutiny for ethical and scientific reasons. Several prominent and widely publicized articles have reported limited concordance of animal experiments with subsequent human clinical trials. Recent assessments of the quality of animal studies have suggested that this translational failure may be due in part to shortcomings in the planning, conduct, and reporting of in vivo studies. This article will emphasize methods to assure best practice rigor in animal study methods and reporting. It will introduce the so-called scientific 3Rs of relevance, robustness, and reproducibility to the in vivo study approach and will review important new trends in the animal research and pharmaceutical discovery and development communities.
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Huchzermeyer C, Reulbach U, Horn F, Lämmer R, Mardin CY, Jünemann AGM. Longitudinal stability of the diurnal rhythm of intraocular pressure in subjects with healthy eyes, ocular hypertension and pigment dispersion syndrome. BMC Ophthalmol 2014; 14:122. [PMID: 25316067 PMCID: PMC4210493 DOI: 10.1186/1471-2415-14-122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 09/24/2014] [Indexed: 11/25/2022] Open
Abstract
Background The diurnal fluctuation of intraocular pressure may be relevant in glaucoma. The aim of this study was to find out whether the timing of diurnal fluctuation is stable over the years. Methods Long-term IOP data from the Erlangen Glaucoma Registry, consisting of several annual extended diurnal IOP profiles for each patient, was retrospectively analyzed. Normal subjects, patients with ocular hypertension and with pigment dispersion syndrome were included because these subjects had not been treated with antiglaucomatous medications at the time of data acquisition. A cosine curve was fitted to the IOP data and the stability of individual rhythms over the years was tested using the Rayleigh test. To compare the peak times among groups, means were calculated only from subjects with a significant Rayleigh test. Results Of the fifty-two eligible subjects, a total of 364 extended diurnal IOP profiles measured in a sitting position had been collected over a period of 114 ± 39 months. The Rayleigh test indicated intraindividual stability of phase timing only in 19 subjects (36%). In subjects with pigment dispersions syndrome, peak IOP occurred on average two hours and seven minutes later during the day compared with subjects without this condition (p = 0.05). Conclusions Fitting of cosine curves to the clinical IOP profiles was generally feasible, although careful interpretation is warranted due to lack of measurements in supine position and between midnight and 7 am. The interesting observation of a phase lag in eyes with pigment dispersion syndrome warrants confirmation and exploration in future prospective studies. The analysis of the IOP data showed no stable individual rhythm in the long term in a majority of patients.
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Affiliation(s)
- Cord Huchzermeyer
- Department of Ophthalmology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany.
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Vázquez-Martínez O, De Ita-Pérez D, Valdés-Fuentes M, Flores-Vidrio A, Vera-Rivera G, Miranda MI, Méndez I, Díaz-Muñoz M. Molecular and biochemical modifications of liver glutamine synthetase elicited by daytime restricted feeding. Liver Int 2014; 34:1391-401. [PMID: 25368882 DOI: 10.1111/liv.12412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS The circadian clock system in the liver plays important roles in regulating metabolism and energy homeostasis. Restricted feeding schedules (RFS) become an entraining stimulus that promotes adaptations that form part of an alternative circadian clock known as the food entrained oscillator (FEO). The aim of this study was to evaluate the daily variations of glutamine synthetase (GS) in liver under a daytime RFS. METHODS Hepatic GS properties were analysed at 3-h intervals over a 24-h period in adult male Wistar rats maintained in a 12:12 h light–dark cycle. RFS group: food access for 2-h in light phase, during 3 weeks. AL group: feeding ad libitum. Fa group: acute fast (21 h). Fa–Re group: acute fast followed by refed 2 h.mRNA expression was measured by RT-qPCR, protein presence by Western-blot and immunohistochemistry, enzyme activity by a spectrophotometric assay, and glutamine by high pressure liquid chromatography. RESULTS AND CONCLUSIONS Restricted feeding schedule induced circadian rhythmicity inmRNA levels of GS and the loss of the rhythmic pattern in mitochondrial GS activity. GS activity in liver homogenates displayed a robust rhythmic pattern in AL that was not modified by RFS. The presence of GS and its zonal distribution did not show rhythmic pattern in both groups. However, acute Fa and Fa–Re diminished GS protein and activity in liver homogenates. Hepatic glutamine concentrations showed a 24-h rhythmic pattern in both groups, in an antiphasic pattern. In conclusion, daytime RFS influences the liver GS system at different levels, that could be part of rheostatic adaptations associated to the FEO, and highlight the plasticity of this system.
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Affiliation(s)
- Olivia Vázquez-Martínez
- Department of Cellular and Molecular Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - Dalia De Ita-Pérez
- Department of Cellular and Molecular Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - Marlen Valdés-Fuentes
- Department of Cellular and Molecular Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - Alejandra Flores-Vidrio
- Department of Cellular and Molecular Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - Gabriela Vera-Rivera
- Department of Behavioral and Cognitive Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - María I. Miranda
- Department of Behavioral and Cognitive Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - Isabel Méndez
- Department of Cellular and Molecular Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
| | - Mauricio Díaz-Muñoz
- Department of Cellular and Molecular Neurobiology; Instituto de Neurobiología; Universidad Nacional Autónoma de México (UNAM); Querétaro Mexico
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The effect of l-carnosine on the circadian resetting of clock genes in the heart of rats. Mol Biol Rep 2014; 42:87-94. [DOI: 10.1007/s11033-014-3745-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Accepted: 09/16/2014] [Indexed: 10/24/2022]
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Bessot N, Lericollais R, Gauthier A, Sesboüé B, Bulla J, Moussay S. Diurnal variation in gait characteristics and transition speed. Chronobiol Int 2014; 32:136-42. [DOI: 10.3109/07420528.2014.959128] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kałużna-Czaplińska J, Żurawicz E, Struck W, Markuszewski M. Identification of organic acids as potential biomarkers in the urine of autistic children using gas chromatography/mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 966:70-6. [DOI: 10.1016/j.jchromb.2014.01.041] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/21/2014] [Accepted: 01/23/2014] [Indexed: 11/15/2022]
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Sani M, Sebai H, Ghanem-Boughanmi N, Boughattas NA, Ben-Attia M. Dosing-time dependent oxidative effects of sodium nitroprusside in brain, kidney, and liver of mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:625-633. [PMID: 25199989 DOI: 10.1016/j.etap.2014.08.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 08/17/2014] [Accepted: 08/18/2014] [Indexed: 06/03/2023]
Abstract
UNLABELLED The purpose of this study was to investigate if the oxidative effects of sodium nitroprusside (SNP) are dosing-time dependent. Therefore, the variation of malondialdehyde (MDA) status was assessed after a single i.p. administration of SNP (2.5mgkg(-1) b.w.) or vehicle (9‰ NaCl) to different and comparable groups of mice (n=48) at two different circadian times (1 and 13h after light onset [HALO]). Brain, kidney, and liver tissues were excised over 36h, and their MDA contents were estimated at 0, 1, 3, 6, 9, 12, 24, and 36h after SNP administration. RESULTS indicated mean MDA level was not significantly changed in each investigated tissue compared with the control. In contrast, the mean MDA value varied among organs and was comparable in brain and liver but lower than in kidney. The data show SNP significantly (P<0.05) increases MDA status in both tissues and exerts time-dependent oxidative effects with the greatest toxicity coinciding with the beginning of the diurnal rest span (local time: 08:00h, i.e., at 1 HALO). The obtained results reveal SNP-induced oxidative damage (evidenced by MDA accumulation) varies according to both the dosing-time and the target organ.
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Affiliation(s)
- Mamane Sani
- UMR Biosurveillance et Toxicologie Environnementale, Département de Biologie, Faculté des Sciences et Techniques de Maradi, 465 Maradi, Niger.
| | - Hichem Sebai
- UR Ethnobotanie et Stress Oxydant, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia
| | - Néziha Ghanem-Boughanmi
- UR Ethnobotanie et Stress Oxydant, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia
| | | | - Mossadok Ben-Attia
- Laboratoire de Biosurveillance de l'Environnement, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia
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Synchronization by food access modifies the daily variations in expression and activity of liver GABA transaminase. BIOMED RESEARCH INTERNATIONAL 2014; 2014:590581. [PMID: 24809054 PMCID: PMC3997914 DOI: 10.1155/2014/590581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/03/2014] [Accepted: 03/11/2014] [Indexed: 02/05/2023]
Abstract
Daytime restricted feeding (DRF) is an experimental protocol that influences the circadian timing system and underlies the expression of a biological clock known as the food entrained oscillator (FEO). Liver is the organ that reacts most rapidly to food restriction by adjusting the functional relationship between the molecular circadian clock and the metabolic networks. γ-Aminobutyric acid (GABA) is a signaling molecule in the liver, and able to modulate the cell cycle and apoptosis. This study was aimed at characterizing the expression and activity of the mostly mitochondrial enzyme GABA transaminase (GABA-T) during DRF/FEO expression. We found that DRF promotes a sustained increase of GABA-T in the liver homogenate and mitochondrial fraction throughout the entire day-night cycle. The higher amount of GABA-T promoted by DRF was not associated to changes in GABA-T mRNA or GABA-T activity. The GABA-T activity in the mitochondrial fraction even tended to decrease during the light period. We concluded that DRF influences the daily variations of GABA-T mRNA levels, stability, and catalytic activity of GABA-T. These data suggest that the liver GABAergic system responds to a metabolic challenge such as DRF and the concomitant appearance of the FEO.
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Allebrandt KV, Teder-Laving M, Kantermann T, Peters A, Campbell H, Rudan I, Wilson JF, Metspalu A, Roenneberg T. Chronotype and sleep duration: the influence of season of assessment. Chronobiol Int 2014; 31:731-40. [PMID: 24679223 DOI: 10.3109/07420528.2014.901347] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Little is known about human entrainment under natural conditions, partly due to the complexity of human behavior, torn between biological and social time and influenced by zeitgebers (light-dark cycles) that are progressively "polluted" (and thereby weakened) by artificial light. In addition, data about seasonal variations in sleep parameters are scarce. We, therefore, investigated seasonal variation in cross-sectional assessments of sleep/wake times of 9765 subjects from four European populations (EGCUT = Estonian Genome Centre, University of Tartu in Estonia; KORA = Cooperative Health Research in the Region of Augsburg in Germany; KORCULA = The Korcula study in Croatia; and ORCADES = The Orkney Complex Disease Study in Scotland). We identified time-of-year dependencies for the distribution of chronotype (phase of entrainment assessed as the mid-sleep time point on free days adjusted for sleep deficit of workdays) in cohorts from Estonia (EGCUT) and Germany (KORA). Our results indicate that season (defined as daylight saving time - DST and standard zonetime periods - SZT) specifications of photoperiod influence the distribution of chronotype (adjusted for age and sex). Second, in the largest investigated sample, from Estonia (EGCUT; N = 5878), we could detect that seasonal variation in weekly average sleep duration was dependent on individual chronotype. Later chronotypes in this cohort showed significant variation in their average sleep duration across the year, especially during DST (1 h advance in social time from the end of March to end of October), while earlier chronotypes did not. Later chronotypes not only slept less during the DST period but the average chronotype of the population assessed during this period was earlier than during the SZT (local time for a respective time zone) period. More in detail, hierarchical multiple regression analyses showed that, beyond season of assessment (DST or SZT), social jetlag (SJl; the discrepancy between the mid sleep on free and work days - which varied with age and sex) contributed to a greater extent to the variation in sleep duration than chronotype (after taking into account factors that are known to influence sleep duration, i.e. age, sex and body mass index). Variation in chronotype was also dependent on age, sex, season of assessment and SJl (which is highly correlated with chronotype - SJl was larger among later chronotypes). In summary, subjective assessments of sleep/wake times are very reliable to assess internal time and sleep duration (e.g. reproducing sleep duration and timing tendencies related to age and sex across the investigated populations), but season of assessment should be regarded as a potential confounder. We identified in this study photoperiod (seasonal adaptation) and SJl as two main factors influencing seasonal variation in chronotype and sleep duration. In conclusion, season of assessment, sex and age have an effect on epidemiological variation in sleep duration, chronotype and SJl, and should be included in studies investigating associations between these phenotypes and health parameters, and on the development of optimal prevention strategies.
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Affiliation(s)
- Karla V Allebrandt
- Institute for Medical Psychology, Ludwig-Maximilians-University , Munich , Germany
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Giménez MC, Beersma DGM, Bollen P, van der Linden ML, Gordijn MCM. Effects of a chronic reduction of short-wavelength light input on melatonin and sleep patterns in humans: Evidence for adaptation. Chronobiol Int 2014; 31:690-7. [DOI: 10.3109/07420528.2014.893242] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Morris JS, Weil ZM, Nelson RJ. Early sexual experience alters voluntary alcohol intake in adulthood. Neurosci Lett 2014; 563:129-33. [DOI: 10.1016/j.neulet.2014.01.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/03/2014] [Accepted: 01/20/2014] [Indexed: 11/25/2022]
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Blattner MS, Mahoney MM. Estrogen receptor 1 modulates circadian rhythms in adult female mice. Chronobiol Int 2014; 31:637-44. [DOI: 10.3109/07420528.2014.885528] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Oginska H, Oginska-Bruchal K. Chronotype and personality factors of predisposition to seasonal affective disorder. Chronobiol Int 2014; 31:523-31. [DOI: 10.3109/07420528.2013.874355] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lin YC, Hsieh IC, Chen PC. Long-term day-and-night rotating shift work poses a barrier to the normalization of alanine transaminase. Chronobiol Int 2013; 31:487-95. [PMID: 24354767 DOI: 10.3109/07420528.2013.872120] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
To evaluate the impact of day-and-night rotating shift work (RSW) on liver health, we performed a retrospective analysis of the association between long-term RSW exposure and the normalization of plasma alanine transaminase (ALT) levels over a five-year period. The data from physical examinations, blood tests, abdominal sonographic examinations, personal histories, and occupational records were collected from a cohort of workers in a semiconductor manufacturing company. The sample population was divided into three subgroups for analysis, according to self-reported shift work status over the five-year interval: persistent daytime workers, workers exposed intermittently to RSW (i-RSW), and workers exposed persistently to RSW (p-RSW). Records were analyzed for 1196 male workers with an initial mean age of 32.5 years (SD 6.0 years), of whom 821 (68.7%) were identified as rotating shift workers, including 374 i-RSW (31.3%) and 447 p-RSW workers (37.4%). At the beginning of the follow-up, 275 were found to have elevated ALT (e-ALT): 25.1% daytime workers, 23.0% i-RSW workers, and 21.3% p-RSW workers (p = 0.098). Of those with e-ALT at the beginning, 101 workers showed normalized serum ALT levels at the end of five-year follow-up: 40 (10.7%) of 375 daytime workers, 32 (8.6%) of 374 i-RSW workers, and 29 (6.5%) of 447 p-RSW workers (p = 0.016). Compared with the workers having persistent e-ALT at the end of follow-up, the workers normalized serum ALT levels had significantly lesser exposures to RSW during follow-up. By performing multivariate logistic regression analyses, and comparing with the persistent daytime co-workers, after controlling for confounding variables (age, occupational factors, educational levels, lifestyle factors, metabolic syndrome, hepatovirus infection, and fatty liver), analysis indicated that the workers exposed to p-RSW were 46% less likely (OR, 0.54; 95% CI, 0.30-0.95; p = 0.03) to attain normal ALT levels within a five-year interval. These observations demonstrate that persistent day-and-night RSW pose a vigorous obstacle to the normalization of e-ALT among workers with preexisting abnormal liver function. We suggest that workers and managers approach with caution the consideration of assigning or accepting long-term day-and-night RSW when an employee health screening shows evidence of abnormal liver function.
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Affiliation(s)
- Yu-Cheng Lin
- Department of Occupational Medicine, En Chu Kong Hospital , New Taipei , Taiwan
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van de Werken M, Booij SH, van der Zwan JE, Simons MJP, Gordijn MCM, Beersma DGM. The biological clock modulates the human cortisol response in a multiplicative fashion. Chronobiol Int 2013; 31:572-80. [DOI: 10.3109/07420528.2013.868472] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Basu P, Singaravel M. 5-Hydroxy-L-tryptophan entrains the free-running rhythm in constant darkness in pygmy mice. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.781326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Djeridane Y, Bonnefont-Rousselot D, Touitou Y. Day/night patterns of melatonin and oxidative stress markers in the rat Harderian gland. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.781327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Basu P, Singaravel M. Acceleration of re-entrainment during a 6-h acute jet lag simulation by 5-hydroxy-l-tryptophan in pygmy field mice. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.770294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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