Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Lutz Vollrath"'
Publikováno v:
Journal of Neurochemistry. 59:2081-2086
Various parameters of the rat pineal gland display a 24-h rhythm. However, nothing is known about possible 24-h variations in cyclic GMP (cGMP) metabolism. In the present study, 24-h variations in pineal gland cGMP accumulation were investigated by d
Autor:
Stephan Letzel, Wilfred Nix, Renate Kimbel, Joachim Schüz, Lutz Vollrath, Lutz G. Schmidt, Bernd Jansen, Ulrich T. Egle, Christian Petters
Publikováno v:
Bioelectromagnetics. 27:280-287
The "Mainzer EMF-Wachhund," a watchdog project, offered a system of self-notification of health complaints attributed to exposures to electromagnetic fields (EMFs) to a population of a part of Germany with about 4 million inhabitants. By using a self
Autor:
I. Schwerdtle, Lydia Engel, Heike Holthues, S. Gerhold, Rainer Spessert, V. Lorenzkowski, B.B.P. Gupta, Lutz Vollrath, B. Heinrich
Publikováno v:
Neuroscience. 132:511-518
As the physiological role of fos-related antigen-2 (Fra-2) is largely unknown and since the pineal plays an important role in the photoperiodic control of the body, we have tested the hypothesis that Fra-2 expression is photoperiod-dependent and may
Publikováno v:
Biochemical and Biophysical Research Communications. 326:160-165
The directly light-sensitive chick pineal gland contains at least two photopigments. Pinopsin seems to mediate the acute inhibitory effect of light on melatonin synthesis, whereas melanopsin may act by phase-shifting the intrapineal circadian clock.
Publikováno v:
Biochemical and Biophysical Research Communications. 318:983-986
The present study examines how the circadian oscillators in the retina and the suprachiasmatic nucleus (SCN) respond to changes in photoperiod. ArylalkylamineN-acetyltransferase (aa-nat) gene expression studied by quantitative RT-PCR revealed that in
Publikováno v:
European Journal of Neuroscience. 19:1559-1571
Chemical synapses equipped with ribbons are tonically active, high-output synapses. The ribbons may play a role in the trafficking of synaptic vesicles. Recent findings in retinal rod cells of BALB/c mice indicate that ribbons are large and smooth in
Autor:
Marc-Alexander von Mach, Lutz Vollrath
Publikováno v:
Annals of Anatomy - Anatomischer Anzeiger. 185:397-402
Synaptic ribbons (SRs) of mammalian pinealocytes exhibit day/night changes in number and size, changes that are apparently regulated by the suprachiasmatic nucleus via postganglionic sympathetic nerve fibres. Since the neural control of SR changes is
Teaching and learning gross anatomy using modern electronic media based on the visible human project
Autor:
Holger Jastrow, Lutz Vollrath
Publikováno v:
Clinical Anatomy. 16:44-54
This article reviews online (Internet) anatomy projects and multimedia productions (books and CD-ROMs) based on the Visible Human Project (VHP) of the United States National Library of Medicine. The focus of these projects and productions is on the t
Autor:
Lutz Vollrath
Publikováno v:
Annals of Anatomy - Anatomischer Anzeiger. 184:583-593
The present review deals with important new chronobiological results especially in the field of chronoendocrinology, shedding new light on the circadian organisation of mammals including man. In vitro studies have shown that the concept of the existe
Publikováno v:
Journal of Neuroendocrinology. 13:581-587
Adrenergic regulation of the pineal enzyme serotonin N-acetyltransferase [arylalkylamine N-acetyltransferase (AA-NAT); EC 2.3.1.87] accounts for the circadian rhythm in melatonin formation. In the present study, the role of protein phosphatases in th