Neuronal activity-related coupling in cortical arterioles: involvement of astrocyte-derived factors
نویسندگان
چکیده
منابع مشابه
Calcium dynamics in cortical astrocytes and arterioles during neurovascular coupling.
Neuronal activity in the brain is thought to be coupled to cerebral arterioles (functional hyperemia) through Ca2+ signals in astrocytes. Although functional hyperemia occurs rapidly, within seconds, such rapid signaling has not been demonstrated in situ, and Ca2+ measurements in parenchymal arterioles are still lacking. Using a laser scanning confocal microscope and fluorescence Ca2+ indicator...
متن کاملAstrocyte Ca2+ Influx Negatively Regulates Neuronal Activity
Maintenance of neural circuit activity requires appropriate regulation of excitatory and inhibitory synaptic transmission. Recently, glia have emerged as key partners in the modulation of neuronal excitability; however, the mechanisms by which glia regulate neuronal signaling are still being elucidated. Here, we describe an analysis of how Ca2+ signals within Drosophila astrocyte-like glia regu...
متن کاملCoupling of the cortical hemodynamic response to cortical and thalamic neuronal activity.
Accurate interpretation of functional MRI (fMRI) signals requires knowledge of the relationship between the hemodynamic response and the neuronal activity that underlies it. Here we address the question of coupling between pre- and postsynaptic neuronal activity and the hemodynamic response in rodent somatosensory (Barrel) cortex in response to single-whisker deflection. Using full-field multiw...
متن کاملAstrocyte-derived soluble factors promoting neuronal differentiation of adult neural progenitor cells
.........................................................................................................v CHAPTER 1. GENERAL INTRODUCTION Introduction ..........................................................................................................1 Dissertation Organization .....................................................................................2 Abbreviations .............
متن کاملNeuronal Activity in Cortical and Thalamic Networks
One of the major problems with which neurophysiological research has been confronted, in recent years, is the way in which the brain deals with the information that it receives over the sensory pathways. The study of this problem has been much enhanced by the development of techniques for the recording of the activity of single neurons. The use of such techniques has provided valuable informati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Experimental Physiology
سال: 2004
ISSN: 0958-0670
DOI: 10.1113/expphysiol.2004.028811