Results 11 to 20 of about 300,632 (358)

A potential biomarker of cognitive impairment: The olfactory dysfunction and its genes expression

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1884-1897, December 2022., 2022
Abstract Objective Accumulation evidence has reported that olfactory impairment may be an essential clinical marker and predictor of mild cognitive impairment or Alzheimer's disease. Method Participants were enrolled in the population‐based, prospective study in Fuxin county, Liaoning province, China between 2019 and 2021.
Jiayi Song   +11 more
wiley   +1 more source

PAF‐induced inflammatory and immuno‐allergic ophthalmic diseases and their mitigation with PAF receptor antagonists: Cell and nuclear effects

open access: yesBioFactors, Volume 48, Issue 6, Page 1226-1249, November/December 2022., 2022
Abstract Ocular allergies are becoming more prevalent as more airborne pollutants, irritants and microbes pervade our environment. Inflammatory and allergic mediators released by dendritic and mast cells within the conjunctiva cause allergic conjunctivitis (AC), a prevalent ocular surface disorder that affects >40% of the world's human population on a ...
Najam A. Sharif
wiley   +1 more source

Advances in exosome biomarkers for cervical cancer

open access: yesCancer Medicine, Volume 11, Issue 24, Page 4966-4978, December 2022., 2022
Cancer‐derived exosomes may promote CC metastasis by boosting cellular epithelial‐mesenchymal transformation (EMT), controlling the proliferation, invasion, or migration of cancer cells, as well as influencing immune escape and aiding angiogenesis.
Zihan Ran   +5 more
wiley   +1 more source

Discovery of LRE1 as a specific and allosteric inhibitor of soluble adenylyl cyclase

open access: yesNature Chemical Biology, 2016
The prototypical second messenger cAMP regulates a wide variety of physiological processes. It can simultaneously mediate diverse functions by acting locally within independently-regulated microdomains.
Lavoisier S. Ramos-Espiritu   +17 more
semanticscholar   +1 more source

Squalene-Hopene Cyclases [PDF]

open access: yesApplied and Environmental Microbiology, 2011
ABSTRACTHopanoids and sterols are members of a large group of cyclic triterpenoic compounds that have important functions in many prokaryotic and eukaryotic organisms. They are biochemically synthesized from linear precursors (squalene, 2,3-oxidosqualene) in only one enzymatic step that is catalyzed by squalene-hopene cyclase (SHC) or oxidosqualene ...
Gabriele Siedenburg, Dieter Jendrossek
openaire   +3 more sources

Overexpression of the type 1 adenylyl cyclase in the forebrain leads to deficits of behavioral inhibition [PDF]

open access: yes, 2015
The type 1 adenylyl cyclase (AC1) is an activity-dependent, calcium-stimulated adenylyl cyclase expressed in the nervous system that is implicated in memory formation. We examined the locomotor activity, and impulsive and social behaviors of AC1+ mice, a
Cao, Hong   +4 more
core   +2 more sources

Forskolin: unique diterpene activator of adenylate cyclase in membranes and in intact cells.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1981
The diterpene, forskolin [half-maximal effective concentration (EC50), 5-10 microM] activates adenylate cyclase [ATP pyrophosphate-lyase (cyclizing), EC 4.6.1.1] in rat cerebral cortical membranes in a rapid and reversible manner.
K. Seamon, W. Padgett, J. Daly
semanticscholar   +1 more source

Regulation of intracellular cyclic GMP concentration by light and calcium in electropermeabilized rod photoreceptors. [PDF]

open access: yes, 1994
This study examines the regulation of cGMP by illumination and by calcium during signal transduction in vertebrate retinal photoreceptor cells. We employed an electropermeabilized rod outer segment (EP-ROS) preparation which permits perfusion of low ...
Coccia, V J, Cote, Rick H.
core   +2 more sources

Formation of nitric oxide from L-arginine in the central nervous system: a transduction mechanism for stimulation of the soluble guanylate cyclase.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1989
A soluble enzyme obtained from rat forebrain catalyzes the NADPH-dependent formation of nitric oxide (NO) and citrulline from L-arginine. The NO formed stimulates the soluble guanylate cyclase and this stimulation is abolished by low concentrations of ...
Richard Graham Knowles   +3 more
semanticscholar   +1 more source

Molecular, Enzymatic, and Cellular Characterization of Soluble Adenylyl Cyclase From Aquatic Animals. [PDF]

open access: yes, 2018
The enzyme soluble adenylyl cyclase (sAC) is the most recently identified source of the messenger molecule cyclic adenosine monophosphate. sAC is evolutionarily conserved from cyanobacteria to human, is directly stimulated by [Formula: see text] ions ...
Acin-Perez   +58 more
core   +2 more sources

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