Results 21 to 30 of about 162,694 (348)

Low number of neurosecretory vesicles in neuroblastoma impairs massive catecholamine release and prevents hypertension

open access: yesFrontiers in Endocrinology, 2022
IntroductionNeuroblastoma (NB) is a pediatric cancer of the developing sympathetic nervous system. It produces and releases metanephrines, which are used as biomarkers for diagnosis in plasma and urine. However, plasma catecholamine concentrations remain
Annick Mühlethaler-Mottet   +11 more
doaj   +1 more source

Plasma catecholamines during activation of the sympathetic nervous system in a patient with Shy-Drager syndrome. [PDF]

open access: yes, 1980
Plasma catecholamines and circulation parameters were studied in a patient with a Shy-Drager syndrome. Basal values of free noradrenaline and dopamine were within the normal range, whereas the adrenaline level was decreased.
Gross, G.   +2 more
core   +1 more source

Catecholamines Potentiate Amyloid β-Peptide Neurotoxicity: Involvement of Oxidative Stress, Mitochondrial Dysfunction, and Perturbed Calcium Homeostasis

open access: yesNeurobiology of Disease, 1998
Oxidative stress and mitochondrial dysfunction are implicated in the neuronal cell death that occurs in physiological settings and in neurodegenerative disorders.
Weiming Fu   +3 more
doaj   +1 more source

Ca2+-Stimulated Catecholamine Release from alpha-Toxin Permeabilized PC12 Cells [PDF]

open access: yes, 1987
Two possible cellular pathways of catecholamines from the chromaffin vesicles of PC 12 cells to the surrounding medium are explored in this study. The direct one circumventing the cytoplasm can be activated in a-toxin-permeabilized cells with micromolar ...
Ahnert-Hilger, G.   +2 more
core   +1 more source

Impact of fractal visual stimulation on healthy rabbit retina: functional, morphometric and biochemical studies

open access: yesРоссийский офтальмологический журнал, 2022
Purpose: to investigate the changes of electrophysiological activity of healthy rabbit retina occurring in courses of fractal stimulation (FS) of varied duration in order to obtain new scientific data on how fractal visual signals of low intensity, self ...
V. V. Neroev   +8 more
doaj   +1 more source

Norepinephrine and dopamine increase motility, biofilm formation and virulence of Vibrio harveyi [PDF]

open access: yes, 2014
Vibrio harveyi is one of the major pathogens of aquatic organisms, affecting both vertebrates and invertebrates, and causes important losses in the aquaculture industry.
Bossier, Peter   +3 more
core   +2 more sources

Effects of Trilostane on urinary Catecholamines and their metabolites in dogs with Hypercortisolism

open access: yesBMC Veterinary Research, 2017
Background Glucocorticoids influence the synthesis and metabolism of catecholamines (epinephrine and norepinephrine) and metanephrines (metanephrine and normetanephrine).
Nadja Sieber-Ruckstuhl   +7 more
doaj   +1 more source

Post-Mortem Immunohistochemical Evidence of β2-Adrenergic Receptor Expression in the Adrenal Gland [PDF]

open access: yes, 2019
The evidence from post-mortem biochemical studies conducted on cortisol and catecholamines suggest that analysis of the adrenal gland could provide useful information about its role in human pathophysiology and the stress response.
Alibrandi A.   +10 more
core   +1 more source

Natural Killer cells responsiveness to physical esercise: a brief review [PDF]

open access: yes, 2013
Natural killer cells (NK) are a group of peripheral blood lymphocytes which display cytotoxic ac- tivity against a wide range of tumour cells. They are a consistent part of the inflammatory re- sponse that is activated when either internal or external ...
Concu A.   +4 more
core   +1 more source

Microchip electrophoresis bioanalytical applications [PDF]

open access: yes, 2008
Microchip electrophoresis (MCE) is a novel analytical technique resulting from miniaturization of capillary electrophoresis (CE) to a planar microfabricated separation device.
Vlcková, Markéta
core   +1 more source

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