| Influence of different artificial lighting regimes on intraocular pressure circadian profile in the dog (Canis familiaris). | |
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MedLine Citation:
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PMID: 20484855 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study was undertaken to determine the temporal variation in intraocular pressure (IOP) and if this variation is under circadian clock control. The authors exposed five female and five male Beagles to four different artificial lighting regimes: 12/12 light/dark (L/D) period, 12/12 D/L period, constant light, and constant darkness. IOP was measured at 3 h intervals over a 48-h period. Statistical analysis of the data was performed by multivariate ANOVA, one-way repeated measure ANOVA and by the single cosinor method. Results showed no statistical effect of gender, eye and photoperiod on IOP values. A significant effect of time for each gender and each eye during all lighting regimes was seen, except during constant light, and also robust daily rhythmicity of IOP values in all L/D periods, except during constant light. In conclusion IOP values in the dog show a circadian rhythm and this rhythm is driven by a central pacemaker. |
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Authors:
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Giuseppe Piccione; Claudia Giannetto; Francesco Fazio; Elisabetta Giudice |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Experimental animals / Japanese Association for Laboratory Animal Science Volume: 59 ISSN: 1881-7122 ISO Abbreviation: Exp. Anim. Publication Date: 2010 |
Date Detail:
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Created Date: 2010-05-20 Completed Date: 2010-08-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9604830 Medline TA: Exp Anim Country: Japan |
Other Details:
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Languages: eng Pagination: 215-23 Citation Subset: IM |
Affiliation:
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Department of Experimental Sciences and Applied Biotechnology, Laboratory of Veterinary Chronophysiology, Faculty of Veterinary Medicine, University of Messina, Messina, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Husbandry Animals Biological Clocks / radiation effects* Circadian Rhythm / physiology* Dogs / physiology* Female Intraocular Pressure / physiology* Light* Male Ocular Physiological Phenomena Tonometry, Ocular / veterinary |
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