Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Alex H. Vielma"'
Autor:
Sebastián F. Estay, Camila Morales-Moraga, Alex H. Vielma, Angelina Palacios-Muñoz, Chiayu Q. Chiu, Andrés E. Chávez
Publikováno v:
iScience, Vol 27, Iss 6, Pp 109920- (2024)
Summary: Type 1 cannabinoid receptors (CB1Rs) are expressed in major retinal neurons within the rod-pathway suggesting a role in regulating night visual processing, but the underlying mechanisms remain poorly understood. Using acute rat retinal slice
Externí odkaz:
https://doaj.org/article/63a2368face24eafba6cd2f73fe68816
Publikováno v:
Frontiers in Cellular Neuroscience, Vol 9 (2015)
Abstract Acetylcholine (ACh) is a major retinal neurotransmitter that modulates visual processing through a large repertoire of cholinergic receptors expressed on different retinal cell types. ACh is released from starburst amacrine cells under scoto
Externí odkaz:
https://doaj.org/article/89a6ca5cb11946c98f893d2ab19e9b6c
Publikováno v:
PLoS ONE, Vol 9, Iss 12, p e114330 (2014)
Nitric oxide (NO) is involved in retinal signal processing, but its cellular actions are only partly understood. An established source of retinal NO are NOACs, a group of nNOS-expressing amacrine cells which signal onto bipolar, other amacrine and ga
Externí odkaz:
https://doaj.org/article/18f58f82cd1e428c83092a35c2620a71
Autor:
Alex H. Vielma, François Paquet-Durand, Bárbara Cadiz, Oliver Schmachtenberg, Victor Manuel Calbiague
Publikováno v:
The Journal of comparative neurologyREFERENCES. 528(6)
One of the tissues of the central nervous system most affected by diabetes is the retina. Despite a growing understanding of the biochemical processes involved in glucose toxicity, little is known about the physiological consequences of chronic high
Autor:
Alejandro Alcaino, Alex H. Vielma, Marco Fuenzalida, Felipe Tapia, Andrés E. Chávez, Oliver Schmachtenberg
Publikováno v:
Investigative Ophthalmology & Visual Science
Purpose In the mammalian retina, cannabinoid type 1 receptors (CB1Rs) are well-positioned to alter inhibitory synaptic function from amacrine cells and, thus, might influence visual signal processing in the inner retina. However, it is not known if C
Publikováno v:
Scientific Reports
Scientific Reports, Vol 8, Iss 1, Pp 1-1 (2018)
Scientific Reports, Vol 8, Iss 1, Pp 1-1 (2018)
A17 amacrine cells are an important part of the scotopic pathway. Their synaptic varicosities receive glutamatergic inputs from rod bipolar cells (RBC) and release GABA onto the same RBC terminal, forming a reciprocal feedback that shapes RBC depolar
Publikováno v:
Scientific Reports
Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
A17 amacrine cells are an important part of the scotopic pathway. Their synaptic varicosities receive glutamatergic inputs from rod bipolar cells (RBC) and release GABA onto the same RBC terminal, forming a reciprocal feedback that shapes RBC depolar
Autor:
Oliver Schmachtenberg, Carlos F. Lagos, Alex H. Vielma, Carolina Urrutia, Bruno A. Cisterna, Alberto J. M. Martin, Sebastian E. Gutierrez-Maldonado, Tomas Perez-Acle, Juan C. Sáez, Yerko Escalona, Aníbal A. Vargas, Luis A. Cea, Claudia Pareja-Barrueto, Fujiko Saavedra-Leiva
Publikováno v:
Frontiers in Physiology
Although connexins (Cxs) are broadly expressed by cells of mammalian organisms, Cx39 has a very restricted pattern of expression and the biophysical properties of Cx39-based channels [hemichannels (HCs) and gap junction channels (GJCs)] remain largel
Publikováno v:
Experimental eye research. 161
Nitric oxide (NO) is a neuromodulator involved in physiological and pathological processes in the retina. In the inner retina, a subgroup of amacrine cells have been shown to synthesize NO, but bipolar cells remain controversial as NO sources. This s
Autor:
Catherine A. Arrese, Adrian G. Palacios, Francisco Bozinovic, Leo Peichl, Alex H. Vielma, David M. Hunt
Publikováno v:
The Journal of Comparative Neurology. 518:1589-1602
We studied the retinal photoreceptors in the mouse opossum Thylamys elegans, a nocturnal South American marsupial. A variety of photoreceptor properties and color vision capabilities have been documented in Australian marsupials, and we were interest