Results 51 to 60 of about 11,967,962 (263)

The effect of combined glutamate receptor blockade in the NTS on the hypoxic ventilatory response in awake rats differs from the effect of individual glutamate receptor blockade. [PDF]

open access: yes, 2014
Ventilatory acclimatization to hypoxia (VAH) increases the hypoxic ventilatory response (HVR) and causes persistent hyperventilation when normoxia is restored, which is consistent with the occurrence of synaptic plasticity in acclimatized animals ...
Carr, John A   +3 more
core   +2 more sources

Structure and dynamics of the E. coli chemotaxis core signaling complex by cryo-electron tomography and molecular simulations [PDF]

open access: yes, 2020
To enable the processing of chemical gradients, chemotactic bacteria possess large arrays of transmembrane chemoreceptors, the histidine kinase CheA, and the adaptor protein CheW, organized as coupled core-signaling units (CSU). Despite decades of study,
Cassidy, Keith   +8 more
core   +1 more source

Anaesthetic Management of Chemodectoma Excision [PDF]

open access: yesThe Indian Anaesthetists' Forum, 2007
Carotid body tumours (CBTs) or chemodectoma are rare non- chromaffin paragangliomas arising from the chemoreceptor cells found at the carotid bifurcation.
Dr. Babita Gupta   +1 more
doaj  

Insights into the control and consequences of breathing adjustments in fishes-from larvae to adults

open access: yesFrontiers in Physiology, 2023
Adjustments of ventilation in fishes to regulate the volume of water flowing over the gills are critically important responses to match branchial gas transfer with metabolic needs and to defend homeostasis during environmental fluctuations in O2 and/or ...
Steve F. Perry   +2 more
doaj   +1 more source

Alternative mechanism for bacteriophage adsorption to the motile bacterium Caulobacter crescentus [PDF]

open access: yes, 2011
2D and 3D cryo-electron microscopy, together with adsorption kinetics assays of ϕCb13 and ϕCbK phage-infected Caulobacter crescentus, provides insight into the mechanisms of infection.
Ackermann   +45 more
core   +4 more sources

Viral Gene Transfer of Dominant-Negative Kv4 Construct Suppresses an O2-Sensitive K+ Current in Chemoreceptor Cells

open access: yesJournal of Neuroscience, 2000
Hypoxia initiates the neurosecretory response of the carotid body (CB) by inhibiting one or more potassium channels in the chemoreceptor cells. Oxygen-sensitive K+ channels were first described in rabbit CB chemoreceptor cells, in which a transient ...
M. Teresa Pé Rez-García   +7 more
semanticscholar   +1 more source

Chemotaxis cluster 1 proteins form cytoplasmic arrays in Vibrio cholera and are stabilized by a double signaling domain receptor DosM [PDF]

open access: yes, 2016
Nearly all motile bacterial cells use a highly sensitive and adaptable sensory system to detect changes in nutrient concentrations in the environment and guide their movements toward attractants and away from repellents.
Briegel, Ariane   +5 more
core   +3 more sources

A critical reappraisal of the carotid sinus and carotid bulb: Distinguishing neurohistological function from vascular geometry

open access: yesThe Anatomical Record, EarlyView.
This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose   +2 more
wiley   +1 more source

The Transient Multidrug Resistance Phenotype of Salmonella enterica Swarming Cells Is Abolished by Sub-inhibitory Concentrations of Antimicrobial Compounds

open access: yesFrontiers in Microbiology, 2017
Swarming motility is the rapid and coordinated multicellular migration of bacteria across a moist surface. During swarming, bacterial cells exhibit increased resistance to multiple antibiotics, a phenomenon described as adaptive or transient resistance ...
Oihane Irazoki   +2 more
doaj   +1 more source

KISS1 and KISS1R expression in the human and rat carotid body and superior cervical ganglion [PDF]

open access: yes, 2011
KISS1 and its receptor, KISS1R, have both been found to be expressed in central nervous system, but few data are present in the literature about their distribution in peripheral nervous structures.
De Caro, Raffaele   +6 more
core  

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