Results 71 to 80 of about 11,967,962 (263)

Redox signaling in acute oxygen sensing

open access: yesRedox 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   +3 more
doaj   +1 more source

Structural diversity of bacterial flagellar motors [PDF]

open access: yes, 2011
The bacterial flagellum is one of nature’s most amazing and well-studied nanomachines. Its cell-wall-anchored motor uses chemical energy to rotate a microns-long filament and propel the bacterium towards nutrients and away from toxins.
Beeby, Morgan   +11 more
core   +2 more sources

Postnatal developmental changes in the laryngeal chemosensory cell clusters of rats

open access: yesJournal 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   +5 more
wiley   +1 more source

Fernando De Castro and the discovery of the arterial chemoreceptors

open access: yesFrontiers 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   +11 more
doaj   +1 more source

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

open access: yesJournal 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   +2 more
wiley   +1 more source

Purines and Carotid Body: New Roles in Pathological Conditions

open access: yesFrontiers 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   +2 more
doaj   +1 more source

The role of local renin-angiotensin system in arterial chemoreceptors in sleep-breathing disorders [PDF]

open access: yes, 2014
This article is part of the Research Topic: Carotid body: a new target for rescuing neural control of cardiorespiratory balance in ...
Fung, ML
core   +2 more sources

Effects of Oral Health and Functional Characteristics on Taste Sensitivity in Older Adults: Comparative Analysis Using Solution and Taste Strip Tests

open access: yesJournal of Oral Rehabilitation, EarlyView.
Oral and functional status differentially modify gustatory assessment in older adults. Salivary and swallowing functions selectively affect strip and solution tests, respectively, highlighting the complementary roles of these methods for comprehensive evaluation and personalised management of taste dysfunction.
Hyo‐Jung Jung   +3 more
wiley   +1 more source

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

open access: yesPhysiological 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   +5 more
doaj   +1 more source

All Is Relative—A Call for Considering “Physiologically Informed” Control Conditions to Improve the Mechanistic Understanding of the Effects of Physical Exercise on Cognition

open access: yesScandinavian Journal of Psychology, EarlyView.
ABSTRACT There is a growing interest in elucidating the mechanisms that drive the benefits of physical exercise on cognitive performance. A key element for a better understanding of a particular phenomenon (e.g., the mediators of the exercise‐cognition interaction) is the selection of an appropriate control condition/group as the basis for causal ...
Fabian Herold   +6 more
wiley   +1 more source

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