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Circadian variations in biochemical markers of bone metabolism in horse of different age
Claudia Giannetto, Stefania Casella, Francesco Fazio, Vanessa Messina, Giuseppe Piccione
Language English Country Czech Republic
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from 2003 to 2013
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from 2002
- Keywords
- circadian rhythms, osteocalcin, age, gender, horses,
- MeSH
- Biomarkers blood metabolism urine MeSH
- Circadian Rhythm physiology MeSH
- Animal Experimentation standards statistics & numerical data MeSH
- Horses MeSH
- Bone and Bones metabolism MeSH
- Blood Specimen Collection methods utilization MeSH
- Osteocalcin blood urine MeSH
- Sex Factors MeSH
- Statistics as Topic MeSH
- Age Factors MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
The author studied in thirty Thoroughbred horses the influence of age and gender on daily rhythms of serum osteocalcin (OC). The animals were divided into two groups. Group A: six male and six female 2 years old; Group B: six male, six female and six geldings 6 years old. They were housed individually in box-like stalls under natural photoperiod and environmental conditions. Blood samples were collected every 3 hours over a 48 hour period. Statistical differences of serum OC concentration due to different gender were observed in both Groups A and B. Daily rhythms of serum OC concentration were observed only in Group B, with nocturnal acrophase. In females the acrophase was statistically postponed for 1 hour compared to male and gelding. Male and female showed a more robust daily rhythm than the geldings. The results showed that blood sampling for determination of serum OC should be strictly standardized with regard to the time of the day.
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Lit.: 39
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- $a Dipartimento di Scienze Sperimentali e Biotecnologie Applicate, Facolta di Medicina Veterinaria, Universita degli Studi di Messina, Polo Universitario dell'Annunziata, Messina
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- $a Lit.: 39
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- $a The author studied in thirty Thoroughbred horses the influence of age and gender on daily rhythms of serum osteocalcin (OC). The animals were divided into two groups. Group A: six male and six female 2 years old; Group B: six male, six female and six geldings 6 years old. They were housed individually in box-like stalls under natural photoperiod and environmental conditions. Blood samples were collected every 3 hours over a 48 hour period. Statistical differences of serum OC concentration due to different gender were observed in both Groups A and B. Daily rhythms of serum OC concentration were observed only in Group B, with nocturnal acrophase. In females the acrophase was statistically postponed for 1 hour compared to male and gelding. Male and female showed a more robust daily rhythm than the geldings. The results showed that blood sampling for determination of serum OC should be strictly standardized with regard to the time of the day.
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