Daily rhythms of leukocytes populations, biochemical and enzymatic blood parameters in a carnivorous freshwater catfish (<i>Lophiosilurus alexandri</i>)

Fortes‐Silva, Rodrigo; Leme, Fabíola Oliveira Paes; Boaventura, Túlio Pacheco; Mendonça, Helena Corrêa Pinto De; Moreira, Jane Prado Leite; Cunha, Pedro Hugo Henriques; Luz, Ronald Kennedy

doi:10.1080/07420528.2018.1537284

Cited by 11 publications

(8 citation statements)

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“…Thus, the results of the daily rhythm of this physiological parameter for A. ocellatus (acrophase: 23:42 ± 1:55 h) indicate that this circadian variation may be due to the increase in cortisol at the beginning of the dark period observed for the species. For B. amazonicus , no daily rhythmicity was observed, as also reported by De Pedro et al (2005) and Fortes‐Silva et al (2018) for Tinca tinca and Lophiosilurus alexandri respectively.…”

Section: Discussionsupporting

confidence: 79%

“…According to Fortes‐Silva et al (2018), the circadian variation in plasma proteins is complex as a result of the daily pattern of specific proteins; however, these data are important in assessing the health status of fish. In addition, Mommsen et al (1999) report that changes in total protein concentrations are related to increased cortisol, which results in increased gluconeogenesis and protein catabolism activity.…”

Section: Discussionmentioning

confidence: 99%

“…Different parameters that indicate energy expenditure, and are also associated with the physiological stress response, vary during the day and, consequently, present well‐characterized biological rhythms (Cowan et al, 2017; Fortes‐Silva et al, 2018; Ren et al, 2020). Cortisol, for example, has been the focus of studies on rhythms, mainly because it presents daily patterns in a wide variety of teleost (Montoya et al, 2010; Oliveira et al, 2013; Brüning et al, 2015), although rhythm features such as MESOR (average), amplitude (maximum oscillation) and acrophase (peak time) are species specific (Vera et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Although several studies reported the existence of circadian rhythm for physiological and behavioural parameters in fish (López‐Olmeda et al, 2006, 2012; Oliveira et al, 2013; Vera et al, 2014; Paredes et al, 2015; Fortes‐Silva et al, 2018), little is known about the daily profile of haematological variables in Amazonian species with interest in aquaculture. Among these species is the “oscar” ( Astronotus ocellatus ), which has high potential for tropical aquaculture, with significant trade in world fish keeping, its meat being highly valued in the Amazon region (Santos et al, 2009; Oliveira et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Daily rhythm of some blood parameters in two Amazonian fish, Astronotus ocellatus and Brycon amazonicus

Lopes

Gonçalves

Mattos

et al. 2022

Aquaculture Research

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We evaluated the effect of the light-dark (LD) cycle on energy expenditure indicators for two species of Amazonian fish of commercial interest, oscar (Astronotus ocellatus) and matrinxã (Brycon amazonicus). Fish were exposed to a 12:12 h LD cycle, with lights on at 'zeitgeber time' (ZT) = 0 h. Six animals were used for blood collection every 4 h for 24 h (six time points, three in the light period and three in the dark period).Most haematological parameters exhibited daily rhythms with the acrophase at the end of the dark phase or the beginning of the light period for both species, which may be related to the greater energy demand of these species during the day. For A. ocellatus, triglycerides and total protein showed acrophases at ZT = 13:32 ± 2:45 h and ZT = 23:42 ± 1:55 h, respectively, while the other plasma parameters showed no significant daily differences. In B. amazonicus, significant rhythms were observed for glucose levels (acrophase at ZT = 04:16 ± 2:47 h), triglycerides (ZT = 6:51 ± 4:06 h) and total cholesterol (ZT = 23:22 ± 3:45 h). However, total protein and cortisol levels did not show rhythmicity in this species. Our results highlight the importance of the evaluation of biological rhythms for plasma physiological parameters related to energy expenditure in species with commercial interest and susceptible to stressful situations in farming conditions.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Daily rhythm of some blood parameters in two Amazonian fish, Astronotus ocellatus and Brycon amazonicus

Lopes

Gonçalves

Mattos

et al. 2022

Aquaculture Research

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“…[6][7][8][9][10][11][12][13][14][15] Together, the seasonal and circadian clock synchronise physiology in two dimensions of time, optimising homeostasis by anticipating changes in the environment. For example, plants 16 , fish 17 , birds 18 and mammals 19,20 all align their immune defence with the time of day that pathogenic and physical challenge are most likely. This conservation across the biological kingdoms is strong evidence that temporal modulation of immune function is an ancient and fundamental mechanism that has evolved to optimise survival in variable environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Seasonal and Daytime Variation in Multiple Immune Parameters in Humans: Evidence from 329,261 Participants of the UK Biobank Cohort

Wyse

O’Malley

Coogan

et al. 2020

Preprint

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[275 words] Background: Seasonal disease outbreaks are perennial features of human infectious disease but the factors generating these patterns are unclear. In animal studies, seasonal and circadian (daily) rhythms in immune function generate periodicity in vulnerability to disease, although it is not known whether the same applies to humans. Making use of extensive data from the UK Biobank cohort, we investigate seasonal and daytime variability in multiple immune parameters (inflammatory markers, white blood cell counts and antibody titres), and test for associations with a wide range of environmental and lifestyle factors. Methods and Findings: Markers of inflammation (CRP), and white blood cell counts were measured between 8am and 7pm over a 4-year time period in 329,261 participants in UK Biobank. Individual-level data were linked to other factors that vary over seasonal and daily cycles, including changes in day length, outdoor temperature and vitamin D at the time the blood sample was collected. Analyses were further adjusted for potentially confounding lifestyle factors. Seasonal patterns were evident in lymphocyte and neutrophil counts, and CRP, but not monocytes, and these were independent of lifestyle, demographic and environmental factors. All the immune parameters assessed demonstrated significant daytime variation that was independent of confounding factors. Conclusions: At a population level, human immune parameters vary across season and across time of day, independent of multiple confounding factors. Both season and time of day are fundamental dimensions of immune function that should be considered in all studies of immuno-prophylaxis and disease transmission. Strategic alignment of human activities to seasons and times of the day when we are less susceptible to infection could be an important additional tool for limiting population-level impacts of infectious diseases.

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Circadian rhythm in turbot (Scophthalmus maximus): daily variation of blood metabolites in recirculating aquaculture systems

Petereit,

Lannig,

Baßmann

et al. 2024

Metabolomics

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Introduction Animal welfare in aquaculture is becoming increasingly important, and detailed knowledge of the species concerned is essential for further optimization on farms. Every organism is controlled by an internal clock, the circadian rhythm, which is crucial for metabolic processes and is partially influenced by abiotic factors, making it important for aquaculture practices. Objective In order to determine the circadian rhythm of adult turbot (Scophthalmus maximus), blood samples were collected over a 24-h period and plasma metabolite profiles were analyzed by 1H-NMR spectroscopy. Methods The fish were habituated to feeding times at 9 am and 3 pm and with the NMR spectroscopy 46 metabolites could be identified, eight of which appeared to shift throughout the day. Results We noted exceptionally high values around 3 pm for the amino acids isoleucine, leucine, valine, phenylalanine, lysine, and the stress indicator lactate. These metabolic peaks were interpreted as either habituation to the usual feeding time or as natural peak levels in turbot in a 24-h circle because other indicators for stress (glucose, cortisol and lysozymes) showed a stable baseline, indicating that the animals had no or very little stress during the experimental period. Conclusion This study provides initial insights into the diurnal variation of metabolites in adult turbot; however, further studies are needed to confirm present findings of possible fluctuations in amino acids and sugars. Implementing optimized feeding times (with high levels of sugars and low levels of stress metabolites) could lead to less stress, fewer disease outbreaks and overall improved fish welfare in aquaculture facilities.

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Daily rhythms of leukocytes populations, biochemical and enzymatic blood parameters in a carnivorous freshwater catfish (Lophiosilurus alexandri)

Cited by 11 publications

References 50 publications

Daily rhythm of some blood parameters in two Amazonian fish, Astronotus ocellatus and Brycon amazonicus

Daily rhythm of some blood parameters in two Amazonian fish, Astronotus ocellatus and Brycon amazonicus

Seasonal and Daytime Variation in Multiple Immune Parameters in Humans: Evidence from 329,261 Participants of the UK Biobank Cohort

Circadian rhythm in turbot (Scophthalmus maximus): daily variation of blood metabolites in recirculating aquaculture systems

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