Results 71 to 80 of about 60,935 (266)

Effects of gestational intermittent hypoxia on the respiratory system: A tale of the placenta, fetus, and developing offspring

Journal of Sleep Research, EarlyView.
Effects of gestational intermittent hypoxia on maternal, fetal and offspring respiratory system. In black, effects in humans; in red, in vitro effects; in blue, effects in animal models. Summary Obstructive sleep apnea (OSA) is a common sleep disorder that is associated with a wide variety of health conditions, including cardiovascular, cerebrovascular,
Esther Valverde‐Pérez, Elena Olea, Asunción Rocher, Philip I. Aaronson, Jesús Prieto‐Lloret   +4 more
wiley   +1 more source

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

GABA Immunoreactivity in Chemoreceptor Cells of the Cat Carotid Body.

ACTA HISTOCHEMICA ET CYTOCHEMICA, 1999
γ-Aminobutyric acid (GABA) immunoreactivities were found by immunohistochemistry in the chemoreceptor cells of the cat carotid body at the light microscopic level. The immunohistochemical process used consisted of a strept-avidin-biotin-peroxidase method. The immunostaining was mostly weak and appeared in about one-third of the cells.
Seiji Ohtani, Mieczyslaw Pokorski
openaire   +3 more sources

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

498 Structural Determination of the CqsR CACHE Domain and its Autoinducer

Journal of Clinical and Translational Science, 2023
OBJECTIVES/GOALS: Our goal is to determine the structure of the CACHE domain of the Vibrio cholerae quorum sensing receptor CqsR as well as its autoinducer (AI).
Andrew Guarnaccia, Wei-Lung Ng, Anjali Steenhaut, Sandra Olenic, Lark Perez, Matthew Neiditch   +5 more
doaj   +1 more source

Integrative Genomics Refines Tissues, Candidate Genes and Putative Regulatory Links Involved in the Humic Adaptation of Keystone Freshwater Fish

Molecular Ecology, EarlyView.
ABSTRACT Although population genomics approaches have been successful in identifying regions of the genome shaped by natural selection, progress in dissecting the molecular mechanisms of adaptive variants and traits has been slow. By integrating multi‐tissue (gill, spleen, olfactory rosette, whole eye, and liver) transcriptomes from 16 wild Eurasian ...
M. Yu. Ozerov, K. Noreikiene, K. Taube, R. Gross, A. Vasemägi   +4 more
wiley   +1 more source

Activated chemoreceptor arrays remain intact and hexagonally packed [PDF]

, 2011
Bacterial chemoreceptors cluster into exquisitively sensitive, tunable, highly ordered, polar arrays. While these arrays serve as paradigms of cell signalling in general, it remains unclear what conformational changes transduce signals from the ...
Beeby, Morgan, Briegel, Ariane, Jensen, Grant J., Thanbichler, Martin   +3 more
core   +1 more source

Cryo-Electron Tomography Reveals the Complex Ultrastructural Organization of Multicellular Filamentous Chloroflexota (Chloroflexi) Bacteria

Frontiers in Microbiology, 2020
The cell biology of Chloroflexota is poorly studied. We applied cryo-focused ion beam milling and cryo-electron tomography to study the ultrastructural organization of thermophilic Roseiflexus castenholzii and Chloroflexus aggregans, and mesophilic “Ca ...
Vasil A. Gaisin, Vasil A. Gaisin, Romain Kooger, Denis S. Grouzdev, Vladimir M. Gorlenko, Martin Pilhofer   +5 more
doaj   +1 more source

Decoding Gastric Reflexes: The Role of Mechanosensitive Enteric Neurons in Stomach Motility

Neurogastroenterology &Motility, EarlyView.
ABSTRACT This review focuses on mechanosensitive enteric neurons (MEN) in the guinea pig stomach and their roles in gastric motor reflex pathways. The guinea pig model is advantageous for studying gastric physiology, as its stomach structure and function closely resemble those of humans. Gastric motility involves distinct functional regions: the fundus
Gemma Mazzuoli‐Weber, Sophia Mayr, Kristin Elfers   +2 more
wiley   +1 more source

Adaptation kinetics in bacterial chemotaxis [PDF]

, 1983
Cells of Escherichia coli, tethered to glass by a single flagellum, were subjected to constant flow of a medium containing the attractant alpha-methyl-DL-aspartate. The concentration of this chemical was varied with a programmable mixing apparatus over a
Berg, Howard C., Block, Steven M., Segall, Jeffrey E.   +2 more
core   +1 more source