Results 41 to 50 of about 6,670 (154)

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

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

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

Chronic exposure to perfluorooctane sulfonate induces behavior defects and neurotoxicity through oxidative damages, in vivo and in vitro. [PDF]

PLoS ONE, 2014
Perfluorooctane sulfonate (PFOS) is an emerging persistent pollutant which shows multiple adverse health effects. However, the neurotoxicity of PFOS and its mechanisms have not been fully elucidated.
Na Chen, Jia Li, Dan Li, Yongsheng Yang, Defu He   +4 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

Asymmetric polar localization dynamics of the serine chemoreceptor protein Tsr in Escherichia coli. [PDF]

PLoS ONE, 2018
The spatial location of proteins in living cells can be critical for their function. For example, the E. coli chemotaxis machinery is localized to the cell poles.
Dongmyung Oh, Yang Yu, Hochan Lee, Jae-Hyung Jeon, Barry L Wanner, Ken Ritchie   +5 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

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

Innovations in Obesity Treatment: Beyond Adipose Tissue Dysfunction

Obesity Reviews, EarlyView.
Obesity drives chronic inflammation, insulin resistance, type 2 diabetes, and cancer development through adipocyte dysfunction. Addressing this multisystemic disorder requires integrated strategies beyond diet and exercise, such as thermogenesis activation via menthol or capsinoids and appetite control through GLP‐1/GIP agonists and neuromodulation to ...
Jesica Martínez‐Godfrey, Irene Pomares‐Bri, Paula de Juan‐Maciá, Mariló Olivares‐Vicente, Enrique Barrajón‐Catalán, Vicente Micol, Enrique Roche, María Herranz‐López   +7 more
wiley   +1 more source