H
Hilmar Meissl
Researcher at Max Planck Society
Publications - 50
Citations - 1897
Hilmar Meissl is an academic researcher from Max Planck Society. The author has contributed to research in topics: Melatonin & Pineal gland. The author has an hindex of 24, co-authored 50 publications receiving 1836 citations. Previous affiliations of Hilmar Meissl include Shizuoka University & Goethe University Frankfurt.
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The pineal organ of teleost fishes
Peter Ekstrzm,Hilmar Meissl +1 more
TL;DR: There are strong indications that the pineal organ is one component in a central neural system that constitutes the photoperiod-responding system of the animal, i.e. the system that is responsible for correct timing of daily and seasonal physiological rhythms.
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Responses of neurones of the rat suprachiasmatic nucleus to retinal illumination under photopic and scotopic conditions
TL;DR: Light acting either via rod or cone pathways could have powerful, opposing actions on SCN neurones, and the presence of these neuronal responses suggests a role for rod and cone photoreceptors in SCN function.
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Evolution of photosensory pineal organs in new light: the fate of neuroendocrine photoreceptors
Peter Ekström,Hilmar Meissl +1 more
TL;DR: A new hypothesis of pineal evolution is proposed, in which the old notion 'gradual regression within the sensory cell line' should be replaced with 'changes in fate restriction within the neural lineage of the pineal field'.
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Suprachiasmatic Nuclei Grafts Restore the Circadian Rhythm in the Paraventricular Nucleus of the Hypothalamus
Ehab Tousson,Hilmar Meissl +1 more
TL;DR: Circadian rhythms in spontaneous firing rate with a period close to 24 hr were demonstrated in the SCN, in directly adjacent hypothalamic regions, and in the region of the paraventricular nucleus of the hypothalamus, an important center for the integration of neuroendocrine, homeostatic, and autonomic functions, indicating that theSCN uses a dual mechanism for communication with its targets in the brain.
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The photosensory function of the pineal organ of the pike (Esox lucius L.) Correlation between structure and function
Jacky Falcón,Hilmar Meissl +1 more
TL;DR: The pineal organ of the pike appears to be a functional photoreceptive organ that may act as a dosimeter of solar radiation, and as an indicator of day-length, and some observations suggest that the spike potentials and graded responses are probably not generated by the same structures.