Objective
The mammalian circadian system controls daily cycles in sleep, activity, and physiology, with precise synchronisation to environmental daily light cycles as its main function (entrainment). Studies in knockout mice showed that the clock genes perl, per2, c ryl, cry2 are essential to drive the mammalian circadian oscillation, but their precise role in entrainment remains unclear. Clock gene knockout mice are affected in their circadian light response. Previous work has shown that light induced behavioural pha se shifts and induction of the immediate early gene c-Fos in the central circadian pacemaker (suprachiasmatic nucleus; SCN) are affected by per and cry gene deletions. Such results are mostly interpreted as an effect caused by malfunction of the central pa cemaker. The hypothesis, however, that deletion of a clock genes is likely to affect the circadian organisation in the retina and may reduce its phototransduction efficiency has so far been overlooked. In this study, we want to separate the effect of per o r cry gene deletions on the light responses in the eye and the circadian system. Electro-retinogram, retinal c-Fos induction, SCN c-Fos induction, behavioural phase shifts will be quantified mperl''', per2~'~, perl'''!''', cryl''', cry2''', and wildtype mi ce. Differences in light responses will be correlated with the anatomy of classical and non-classical retinal photoreceptors. Aberations of rhythmicity in melatonin production and electrical activity in isolated retinas will be studied as a possible source for anatomical and light response differences. For these retinal preparations a new melatonin producing mouse model, bearing one of the clock gene deletions, will be developed. This project is not funded otherwise and although most equipment and material is available at the host institute, it can only be continued when additional scientific personnel can be hired. This re-integration grant provides the best financial possib
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- medical and health sciences basic medicine anatomy and morphology
- medical and health sciences clinical medicine ophthalmology
- medical and health sciences basic medicine physiology
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-MOBILITY-11
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
GRONINGEN
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.