Circadian variation of blood clotting time and circulating vitamin K in the athletic horse

Piccione, Giuseppe; Percipalle, Maurizio; Fazio, Francesco; Ferrantelli, Vincenzo; Caola, G.

doi:10.1007/s00580-005-0564-4

Cited by 5 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vitamin K showed its acrophase in the late evening, as previously reported, while prothrombin time (PT) showed a nocturnal acrophase between 20:08 and 02:08, activated partial prothrombin time (aPTT) and fibrinogen no showed time-dependent variations (Piccione et al 2005f). There are no other studies conducted in horses to compare these findings.…”

Section: Daily Rhythms Of Haematological and Haematochemical Parametesupporting

confidence: 51%

State of the art on daily rhythms of physiology and behaviour in horses

Piccione

Giannetto

2011

Biological Rhythm Research

View full text Add to dashboard Cite

This article reviews the literature on the daily rhythm in horses. Many physiological processes have been studied in horses to investigate their daily rhythmicity. In horses many rhythms are driven by an endogenous pacemaker, some of them endogenously generated, others influenced by external stimuli. It then addresses the influence of maturation and ageing, physical exercise and jet lag on these rhythms. The study of daily rhythms in horses is of considerable importance in all aspects of horse management to maintain the natural physiological behaviours of this species, necessary to guarantee the good welfare in breeding and athlete horses. Chronophysiology in horses also has clinical implications, it can influence disease occurrence, diagnostic tests and the effect of medical treatments.

show abstract

Section: Daily Rhythms Of Haematological and Haematochemical Parametesupporting

confidence: 51%

State of the art on daily rhythms of physiology and behaviour in horses

Piccione

Giannetto

2011

Biological Rhythm Research

View full text Add to dashboard Cite

show abstract

“…Previously, in horses changes in clotting times were measured during long distance running (Piccione et al, 2004b), during official trot races (Piccione et al, 2005a) and during show jumps (Piccione et al, 2004a), and following different storage conditions (Casella et al, 2009b). Moreover, circadian variation of blood clotting times in horse during competition (Piccione et al, 2005b) and training (Casella et al, 2009a) were evaluated, but the effect of different workload on clotting parameters and on platelet aggregation in athletic horses was not still studied. On this purpose, the aim of this study was to evaluate the platelet response to different workload in athletic horses.…”

Section: Introductionmentioning

confidence: 99%

Modifications of platelet aggregation during treadmill section and obstacle course in athletic horse

Piccione¹,

Assenza²,

Casella³

et al. 2010

Acta vet. (Beogr.)

Self Cite

View full text Add to dashboard Cite

Eight clinically healthy Sella Italiana horses were used in order to assess the variations of platelet aggregation in response to different workload. Blood samples were collected from each horse at rest, immediately after exercise and 30 min after the end of the exercise. By means of an aggregometer platelet aggregation was quantitated as maximum degree of platelet aggregation and initial velocity platelet aggregation. Two-way repeated measures analysis of variance (ANOVA) was applied to determine significant differences (p<0.05) due to the intensity of exercise and different experimental condition. Our results showed a similar trend of platelet aggregation between treadmill and obstacle course, but statistically significant differences emerged on studied parameters in relation to different workload. These results showed an inhibition of platelet response that probably represents a protective endothelial mechanism through the production of nitric oxide during different workloads in athletic horses

show abstract

“…Several papers have documented over the last two years new characteristics in rhythms: the rhythmicity of some haematological parameters, the erythrocyte count, the total leukocyte count, the platelet count, the haematocrit, the haemoglobin level, the mean corpuscular volume, and the mean corpuscular haemoglobin and mean corpuscular haemoglobin concentration have been found in horses (Piccione et al 2005a). Circadian rhythms in the prothrombin time of the athletic horse have nocturnal acrophase (Piccione et al 2005b). Known circadian rhythms in phagocytic ingestion of neutrophils, neutrophil adherence and counts terminate after subacute ethanol administration and are restored following melatonin.…”

Section: Circadian Rhythmsmentioning

confidence: 99%

Current progress in chronohaematology

Berger¹

2006

JAB

View full text Add to dashboard Cite

Cyclic changes play an important part of the space structure of an organism. Knowledge of the rhythms in haematological characteristics is important for both laboratory medicine and comparative pathology. New findings in chronohaematology published during the last two years are discussed. It seems that the haemato-immune circadian system reflects a circadian clock which is partially independent on the circadian clock in suprachiasmatic nuclei.

show abstract

Circadian variation of blood clotting time and circulating vitamin K in the athletic horse

Cited by 5 publications

References 16 publications

State of the art on daily rhythms of physiology and behaviour in horses

State of the art on daily rhythms of physiology and behaviour in horses

Modifications of platelet aggregation during treadmill section and obstacle course in athletic horse

Current progress in chronohaematology

Contact Info

Product

Resources

About