Výsledky vyhledávání - "A.C. Bobbert"

Absence of Endogenous Circadian Rhythmicity in Blood Pressure?

Autor: Gerard A. Kerkhof, A.C. Bobbert, H.P.A. van Dongen

Publikováno v: American Journal of Hypertension, 11, 373-377. Oxford University Press

Currently available evidence reveals a predominant role of exogenous (so-called “masking”) factors in the 24 h variation of blood pressure in humans. The existence of a (minor) endogenous circadian factor cannot be excluded, however. This possibi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90ec599be3ff7d2ba69c58edfe3bf6bc
https://doi.org/10.1016/s0895-7061(97)00461-5

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Re‐entrainment of the Rabbit's circadian food intake pattern after inversion of 24‐hr sawtooth illuminations and standard light‐dark alternations

Autor: A.C. Bobbert, J.N. Braakman, A.P. van Kempen

Publikováno v: Biological Rhythm Research. 25:89-105

Long‐term recordings of the number of food approaches per 30 min were made from 10 rabbits that were fed ad libitum. They were exposed for long periods to various 24‐hr LD alternations and to 24‐hr sawtooth illuminations that were suddenly inve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9beff702f95254d36573d23e8e16fe14
https://doi.org/10.1080/09291019409360278

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Modification of the rabbit's free‐running food intake pattern by entrainment to 24 hr sawtooth illuminations and standard light‐dark alternations

Autor: A.P. van Kempen, H.L. Kreb, A.C. Bobbert

Publikováno v: Journal of Interdisiplinary Cycle Research. 23:253-276

Long‐term records of the number of food approaches per 30 min were obtained from rabbits fed ad libitum. In the initial experiments 13 rabbits were alternately kept free‐running in constant illumination at 150–200 lux, or entrained to sawtooth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3fda3929ada82b14584312b83b20aa0a
https://doi.org/10.1080/09291019209360185

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Circadian changes of the ERG can be imitated by electrical stimulation of the suprachiasmatic nucleus in rabbits with intact sympathetic innervation of the eyes

Autor: A.C. Bobbert, J.J. Riethoven, A.W. van Rooy

Publikováno v: Journal of Interdisiplinary Cycle Research. 22:57-70

It was previously established that when rabbits have been exposed to 24‐h LD alternations for several weeks, they afterwards exhibit in steady darkness the presence of a programmed rhythm in photic responses of the visual system. In one phase of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8cc23c102e470f4a2e71425edd75ed2
https://doi.org/10.1080/09291019109360099

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Imitations of the circadian changes in rabbit photic responses, elicited by stimulation of the cervical sympathetic nerves and mediated by means of intraocular adrenergic alpha receptors

Autor: R. J. M. P. van Wiechen, A.C. Bobbert, F. Eggelmeijer

Publikováno v: Journal of Interdisciplinary Cycle Research. 21:273-288

It was previously shown that rabbits which have been exposed for several weeks to the natural sequence of daylight and nocturnal darkness, or to fixed 24‐h L:D alternations, exhibit afterwards a programmed rhythm in retinal sensitivity to flashes a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdf970b79166b7c2dc9012a95ee14cbc
https://doi.org/10.1080/09291019009360089

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Symposium growth and development

Autor: A.C. Bobbert, H.L. Kreb, A.P. van Kempen

Publikováno v: Journal of Interdisiplinary Cycle Research. 23:205-207

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5436d84442805a952c2077ea1fbbd05
https://doi.org/10.1080/09291019209360168

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Feedback in the rabbit's central circadian system, revealed by the changes in its free-running food intake pattern induced by blinding, cervical sympathectomy, pinealectomy, and melatonin administration

Autor: A.C. Bobbert, J.J. Riethoven

Publikováno v: Journal of biological rhythms. 6(3)

Long-term records of the number of food approaches per 30 min were obtained from 16 rabbits in constant light and after blinding. Optic nerve sectioning usually resulted in a shortening of the free-running period (τ; mean reduction = -0.26 hr) of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d97e99876ce5befd9ed226e959a6f34e
https://pubmed.ncbi.nlm.nih.gov/1773096

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Changes in pattern and amount of food intake, induced in rabbits by bilateral cervical sympathectomy and subsequent blinding

Autor: H. Duindam, R.J.M.G. de Zwart, A.C. Bobbert

Publikováno v: Journal of Interdisiplinary Cycle Research. 19:49-63

Ten adult rabbits were fed ad libitum during more than 18 months, in which a continuous recording was made of the number of food approaches per 30 min. They were initially intact and exposed to an LD 12:12 h‐regime, thereupon deprived of their cerv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3401570a984bee0fb76b790fd2e8f0fa
https://doi.org/10.1080/09291018809359964

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Difference between the effects of steady illumination vs. darkness on circadian changes in the processing of visual information in rabbits

Autor: A.C. Bobbert, R. J. M. P. van Wiechen

Publikováno v: Journal of Interdisciplinary Cycle Research. 14:101-110

Eight rabbits were synchronized by LD 14:10 (200–250: 0 Lux). After more than 4 weeks of exposure to this Zeitgeber two types of experiment were performed on each specimen. In type I experiments the electroretinograms (ERG's) and Visually Evoked Po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29c360c04c2cab282fa51c5b2e9c2444
https://doi.org/10.1080/09291018309359804

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