Results 51 to 60 of about 7,523 (233)

Participation of Na+ channels in the response of carotid body chemoreceptor cells to hypoxia

, 1994
The role played by Na+ channels of carotid body (CB) chemoreceptor cells was investigated by studying the effects of tetrodotoxin (TTX) on the release of 3H-labeled catecholamines ([3H]CA) by adult rabbit CBs previously incubated with the precursor [3H ...
C. Gonzalez, A. Obeso, A. Rocher, M. T. Cachero, B. Herreros   +4 more
core   +1 more source

First Insights on Photoreceptor Organ Ultrastructure in Marine Chaetonotida (Gastrotricha): Species of Xenotrichula and Draculiciteria (Xenotrichulidae)

Acta Zoologica, EarlyView.
ABSTRACT Marine gastrotrichs inhabit sediments with limited available light, yet evidence suggests that photoreceptor organs are present throughout the phylum Gastrotricha. Here, we confirm this proposition with ultrastructural descriptions of photoreceptive organs in two species of Xenotrichulidae (Order Chaetonotida) that lack pigmented ocelli ...
Thiago Quintão Araújo, Rick Hochberg
wiley   +1 more source

HilD-regulated chemotaxis proteins contribute to Salmonella Typhimurium colonization in the gut

mBio
In the enteric pathogen Salmonella Typhimurium, invasion and motility are coordinated by HilD, a master regulator that activates expression of genes encoding the type III secretion system 1 and some motility genes, including the chemotaxis gene mcpC ...
Kendal G. Cooper, Laszlo Kari, Audrey Chong, Naman Tandon, Kathleen Doran, Lidiane Gomes Da Silva, Diane C. Cockrell, Arden Baylink, Olivia Steele-Mortimer   +8 more
doaj   +1 more source

Redox signaling in acute oxygen sensing

Redox Biology, 2017
Acute oxygen (O2) sensing is essential for individuals to survive under hypoxic conditions. The carotid body (CB) is the main peripheral chemoreceptor, which contains excitable and O2-sensitive glomus cells with O2-regulated ion channels.
Lin Gao, Patricia González-Rodríguez, Patricia Ortega-Sáenz, José López-Barneo   +3 more
doaj   +1 more source

Impacts of Ocean Acidification on Reproduction and Early Life Development in Marine Teleost Fish—A Synthesis

Fish and Fisheries, EarlyView.
ABSTRACT Ocean acidification (OA) remains a major and underexplored threat to marine fishes, particularly regarding reproductive physiology and early life stages (ELS). Although research over the past 15 years has documented diverse OA effects, substantial knowledge gaps persist.
Rebecca J. Bridge, Benjamin T. McClelland, Silvana N. R. Birchenough, Martina H. Stiasny   +3 more
wiley   +1 more source

Role of voltage-dependent calcium channels in stimulus-secretion coupling in rabbit carotid body chemoreceptor cells

, 2013
We have defined Ca2+ channel subtypes expressed in rabbit carotid body (CB) chemoreceptor cells and their participation in the stimulus-evoked catecholamine (CA) release. Ca2+ currents (ICa) activated at -30 mV, peaked at +10 mV and were fully blocked by
Almaraz, Laura, Rigual, Ricardo, Geijo-Barrientos, Emilio, Cáceres, Ana Isabel, González, Constancio, Rocher, Asunción   +5 more
core   +1 more source

Fernando De Castro and the discovery of the arterial chemoreceptors

Frontiers in Neuroanatomy, 2014
When De Castro entered the carotid body (CB) field, the organ was considered to be a small autonomic ganglion, a gland, a glomus or glomerulus, or a paraganglion.
Constancio eGonzalez, Silvia eConde, Teresa eGallego-Martin, Elena eOlea, Elvira eGonzalez-Obeso, Maria eRamirez, Sara eYubero, Maria Teresa Agapito, Angela eGomez-Niño, Ana eObeso, Ricardo eRigual, Asuncion eRocher   +11 more
doaj   +1 more source

Transcriptional responses of Aedes aegypti chemosensory tissues in response to volatile DEET and citronella oil

Insect Molecular Biology, EarlyView.
Aedes aegypti females were significantly repelled by both volatile DEET and citronella oil in comparison to control (ethanol‐exposed) mosquitoes. Global gene expression changes were largest in the mosquito mouthparts, with notable downregulation of the three subunits comprising the mosquito CO2 receptor (Gr1, 2 and 3).
Ivan Drahun, Jessica M. Sparrow, Cody W. Koloski, Bryan J. Cassone   +3 more
wiley   +1 more source

DPPX modifies TEA sensitivity of the Kv4 channels in rabbit carotid body chemoreceptor cells

, 2013
El pdf del trabajo es la versión post-print.Chemoreceptor cells from rabbit carotid body (CB) exhibit transient outward currents reversibly inhibited by low P(o2).
Alonso, Esperanza, López-López, José R., Colinas, Olaia, Pérez-García, M. Teresa, Pérez-Carretero, Francisco D.   +4 more
core   +1 more source

CO2-dependent opening of an inwardly rectifying K+ channel [PDF]

, 2011
CO2 chemosensing is a vital function for the maintenance of life that helps to control acid–base balance. Most studies have reported that CO2 is measured via its proxy, pH. Here we report an inwardly rectifying channel, in outside-out excised patches
Dale, Nicholas, Robert T. R. Huckstepp, Huckstepp, Robert T. R., Nicholas Dale   +3 more
core   +1 more source