Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Karlheinz Voigt"'
Autor:
Karlheinz Voigt, Ulrike Feudel, Martin T. Huber, Frank Moss, Hans A. Braun, Epaminondas Rosa, Jan A. Freund, Svetlana Postnova, C. Finke
Publikováno v:
The European Physical Journal Special Topics. 187:199-203
We study a physiologically realistic implementation of internal stochasticity in a four-dimensional Hodgkin-Huxley type model of mammalian cold receptors. We show that in a deterministically tonic firing regime, this stochasticity can drive the neuro
Publikováno v:
Journal of Thermal Biology. 29:345-350
1. We recorded impulse activity of thermosensitive hypothalamic neurons in rat brain slices during superfusion with ethanol at constant temperatures and during slow sinusoidal temperature changes. 2. At constant temperatures of 37 °C, ethanol applic
Publikováno v:
Biosystems. 71:39-50
Modulation of neuronal impulse pattern is examined by means of a simplified Hodgkin-Huxley type computer model which refers to experimental recordings of cold receptor discharges. This model essentially consists of two potentially oscillating subsyst
Publikováno v:
Neuropsychopharmacology. 28:S48-S53
Sleep is not just the absence of wakefulness but a regulated process with an important restorative function. Based on electroencephalographic recordings and characteristic patterns and waveforms we can distinguish wakefulness and five sleep stages gr
Autor:
Ulrich Bickel, Holger Petersen, Thomas Kissel, Klaus Kunath, Dagmar Fischer, Karlheinz Voigt, Anke von Harpe
Publikováno v:
Journal of Controlled Release. 89:113-125
Low-molecular-weight polyethylenimine (LMW-PEI) was synthesized by the acid-catalyzed, ring-opening polymerization of aziridine and compared with commercially available high-molecular-weight PEI (HMW-PEI) of 25 kDa. Molecular weights were determined
Autor:
Hugo O. Besedovsky, Detlev Zwingmann, Adriana del Rey, Karlheinz Voigt, Heiner Rogausch, Mirjam Trudewind
Publikováno v:
Journal of Applied Physiology. 94:469-475
This work is based on the hypothesis that sympathetic nerves regulate the uptake of circulating cells by the spleen by affecting splenic blood flow and that the quantity of cells sequestered depends on whether changes in noradrenergic transmission oc
Autor:
Klaus Kunath, Holger Petersen, Karlheinz Voigt, Ulrich Bickel, Dagmar Fischer, Anke von Harpe, Thomas Kissel
Publikováno v:
Pharmaceutical Research. 19:810-817
Purpose. To study the relationship between structure of poly(ethylene imine-co-ethylene glycol), PEI-PEG, copolymers and physicochemical properties as well as in vivo behavior of their complexes with NF-κB decoy.
Autor:
R Hoffmann, G.P. McGregor, Karlheinz Voigt, Rainer Viktor Haberberger, Stefanie Hagner, D Overkamp
Publikováno v:
Peptides. 23:109-116
Calcitonin gene-related peptide and adrenomedullin exert potent effects in skin but their cellular targets are unknown. This study aimed to identify the cellular location of calcitonin receptor-like receptor (CRLR) which is pharmacolocically identica
Publikováno v:
Psychoneuroendocrinology. 26:673-687
The present study investigated the question if a pharmacological blockade of cortisol release with stress affects lymphocyte redistribution in healthy volunteers. It was expected that the well known increases in the number of CD8+ (T-suppressor/cytot
Autor:
Xing Pei, Karlheinz Voigt, N Anthes, Alexander Neiman, Frank Moss, Hans A. Braun, Martin T. Huber
Publikováno v:
Biosystems. 62:99-112
We used a minimal Hodgkin–Huxley type model of cold receptor discharges to examine how noise interferes with the non-linear dynamics of the ionic mechanisms of neuronal stimulus encoding. The model is based on the assumption that spike-generation d