Results 41 to 50 of about 30,514 (251)

Bacillus anthracis edema factor substrate specificity: evidence for new modes of action [PDF]

open access: yes, 2012
Since the isolation of Bacillus anthracis exotoxins in the 1960s, the detrimental activity of edema factor (EF) was considered as adenylyl cyclase activity only.
Agrawal   +94 more
core   +2 more sources

The onset of labor alters corticotropin-releasing hormone type 1 receptor variant expression in human myometrium : putative role of interleukin-1ß [PDF]

open access: yes, 2007
CRH targets the human myometrium during pregnancy. The efficiency of CRH actions is determined by expression of functional receptors (CRH-R), which are dynamically regulated.
Grammatopoulos, Dimitris   +6 more
core   +1 more source

2‘(3‘)-O-(N-methylanthraniloyl)-substituted GTP analogs: a novel class of potent competitive adenylyl cyclase inhibitors. [PDF]

open access: hybridJournal of Biological Chemistry, 2003
2'(3')-O-(N-Methylanthraniloyl)-(MANT)-substituted nucleotides are fluorescent and widely used for the kinetic analysis of enzymes and signaling proteins. We studied the effects of MANT-guanosine 5'-[gamma-thio]triphosphate (MANT-GTP gamma S) and MANT-guanosine 5'-[beta,gamma-imido]triphosphate (MANT-GppNHp) on G alpha(s)- and G alpha(i)-protein ...
Andreas Gille, Roland Seifert
openalex   +3 more sources

Inducible nitric oxide synthase modulates lipolysis in adipocytes

open access: yesJournal of Lipid Research, 2005
The role of inducible nitric oxide synthase (iNOS) in the modulation of adipocyte lipolysis was investigated. Treatment of white and brown adipose cell lines and mouse adipose explants with a mixture of tumor necrosis factor-α, interferon-γ, and ...
Patrice Penfornis, André Marette
doaj   +1 more source

Short PDE4 Isoforms as Drug Targets in Disease

open access: yesFrontiers in Bioscience-Landmark, 2023
The second messenger, cyclic adenosine monophosphate (cAMP), is a master regulator of signal transduction that maintains cell homeostasis. A fine balance between cAMP synthesis by adenylyl cyclase and degradation by phosphodiesterases (PDEs) underpins ...
Elka Kyurkchieva, George S. Baillie
doaj   +1 more source

Activity of Cyclic AMP Phosphodiesterases and Adenylyl Cyclase in Peripheral Nerve after Crush and Permanent Transection Injuries [PDF]

open access: yes, 1998
Recent studies demonstrate that cAMP levels are tightly controlled during demyelination and remyelination in Schwann cells as cAMP decreases to 8–10% of normal following both sciatic nerve crush or permanent transection injury and only begins to increase
Poduslo, Joseph F.   +1 more
core   +1 more source

Pulsed Electromagnetic Fields: A Novel Attractive Therapeutic Opportunity for Neuroprotection After Acute Cerebral Ischemia

open access: yesNeuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objectives Acute cerebral ischemia is characterized by several pathological processes evolving during time, which contribute to the final tissue damage. Secondary processes, such as prolonged inflammatory response, impaired mitochondrial function and oxidative stress, are responsible for the progression of brain injury to the peri‐infarct area,
Fioravante Capone   +8 more
wiley   +1 more source

Uncovering the Cyclic AMP Signaling Pathway of the Protozoan Parasite Entamoeba histolytica and Understanding Its Role in Phagocytosis

open access: yesFrontiers in Cellular and Infection Microbiology, 2020
Second messenger signaling controls a surprisingly diverse range of processes in several eukaryotic pathogens. Molecular machinery and pathways involving these messengers thus hold tremendous opportunities for therapeutic interventions.
Shalini Agarwal   +3 more
doaj   +1 more source

Activation of Rat Gastric Mucosal Adenylyl Cyclase by Secretory Inhibitors

open access: yesGastroenterology, 1977
Prostaglandin (PG) E1, E2, A1, and A2 stimulated rat gastric corpus mucosal membrane adenylyl cyclase activity. PGE1 (Kalpha congruent to 8 muM) affected the maximum velocity but not the affinity of the enzyme for ATP and maximum PGE1 activation was not affected by histamine H1 or H2 receptor antagonists.
W J, Thompson   +3 more
openaire   +2 more sources

Cerebellar Kainate Receptor-Mediated Facilitation of Glutamate Release Requires Ca2+-Calmodulin and PKA

open access: yesFrontiers in Molecular Neuroscience, 2018
We elucidated the mechanisms underlying the kainate receptor (KAR)-mediated facilitatory modulation of synaptic transmission in the cerebellum. In cerebellar slices, KA (3 μM) increased the amplitude of evoked excitatory postsynaptic currents (eEPSCs) at
Rafael Falcón-Moya   +3 more
doaj   +1 more source

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