Results 61 to 70 of about 7,523 (233)

Reductive stress in mitochondria isolated from the carotid body of type 1 diabetic male Wistar rats

Physiological Reports
The carotid body (CB) senses changes in arterial O2 partial pressure (pO2) and glucose levels; therefore, it is key for the detection of hypoxia and hypoglycemia. The CB has been suggested to detect pO2 through an increase in reactive oxygen species (ROS)
Hector R. Tejeda‐Chavez, Sergio Montero, Alfredo Saavedra‐Molina, Monica Lemus, Julio B. Tejeda‐Luna, Elena Roces de Alvarez‐Buylla   +5 more
doaj   +1 more source

Purines and Carotid Body: New Roles in Pathological Conditions

Frontiers in Pharmacology, 2017
It is known that adenosine and adenosine-5′-triphosphate (ATP) are excitatory mediators involved in carotid body (CB) hypoxic signaling. The CBs are peripheral chemoreceptors classically defined by O2, CO2, and pH sensors.
Silvia V. Conde, Emilia C. Monteiro, Joana F. Sacramento   +2 more
doaj   +1 more source

Postnatal developmental changes in the laryngeal chemosensory cell clusters of rats

Journal of Anatomy, EarlyView.
Chemosensory cell clusters appeared in the rat larynx 2 days after birth and were already connected to afferent nerve fibers. Their number increased until 3 weeks of age, then stabilized while continuing to grow through the addition of new cells. Because their number reached a plateau around the time of weaning, their development may be linked to ...
Sayed Sharif Abdali, Kanna Miyazaki, Takuya Yokoyama, Nobuaki Nakamuta, Tomoyuki Saino, Yoshio Yamamoto   +5 more
wiley   +1 more source

EPAC signalling pathways are involved in low PO2 chemoreception in carotid body chemoreceptor cells

, 2009
Chemoreceptor cells of the carotid bodies (CB) are activated by hypoxia and acidosis, responding with an increase in their rate of neurotransmitter release, which in turn increases the electrical activity in the carotid sinus nerve and evokes a ...
Almaraz, Laura, Ana I. Caceres, Asuncion Rocher, Cáceres, Ana Isabel, Laura Almaraz, González, Constancio, Rocher, Asunción, Constancio Gonzalez   +7 more
core   +1 more source

Effects of osmotic changes on the chemoreceptor cell of rat carotid body

The Journal of Physiology, 2003
The carotid body plays a crucial role in cardiorespiratory regulation. In the present study we investigated the effect of osmotic changes on cytoplasmic calcium concentration ([Ca2+]c) and pH (pHi) of isolated chemoreceptor cells of the rat carotid body.
Zoltán, Molnár, Gábor L, Petheo, Csaba, Fülöp, András, Spät   +3 more
openaire   +3 more sources

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

Journal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack, Ben T. Kligman, Maranda L. Stricklin   +2 more
wiley   +1 more source

Intracellular Ca²⁺stores in chemoreceptor cells of the rabbit carotid body: significance for chemoreception

, 2000
The notion that intracellular Ca2+(Cai2+) stores play a significant role in the chemoreception process in chemoreceptor cells of the carotid body (CB) appears in the literature in a recurrent manner. However, the structural identity of the Ca2+stores and
I. Vicario, J. R. López-Lopez, A. Obeso, A. Rocher, C. González   +4 more
core   +1 more source

To Move or Not to Move: When and How Bacteria Suppress Flagellar Motility

Molecular Microbiology, EarlyView.
Motility cessation in bacteria is a key regulatory strategy that provides multiple survival advantages including enhanced community cooperation, niche adaptation and evasion of host immune responses. This process is controlled by associated mechanisms such as post‐translational modifications and second messenger signalling that stabilise non‐motile ...
Fatemeh Mohaghegh, Jacob Scadden, Matthew A. B. Baker   +2 more
wiley   +1 more source

The type IV pilus chemoreceptor PilJ controls chemotaxis of one bacterial species towards another.

PLoS Biology
Bacteria live in social communities, where the ability to sense and respond to interspecies and environmental signals is critical for survival. We previously showed the pathogen Pseudomonas aeruginosa detects secreted peptides from bacterial competitors ...
Kaitlin D Yarrington, Tyler N Shendruk, Dominique H Limoli   +2 more
doaj   +1 more source

Carotid Body Type-I Cells Under Chronic Sustained Hypoxia: Focus on Metabolism and Membrane Excitability

Frontiers in Physiology, 2018
Chronic sustained hypoxia (CSH) evokes ventilatory acclimatization characterized by a progressive hyperventilation due to a potentiation of the carotid body (CB) chemosensory response to hypoxia.
Raúl Pulgar-Sepúlveda, Rodrigo Varas, Rodrigo Varas, Rodrigo Iturriaga, Rodrigo Del Rio, Rodrigo Del Rio, Rodrigo Del Rio, Fernando C. Ortiz   +7 more
doaj   +1 more source