Results 91 to 100 of about 131,283 (255)

Genetic Diversity, Ochratoxin A and Fumonisin Profiles of Strains of Aspergillus Section Nigri Isolated from Dried Vine Fruits

open access: yesToxins, 2020
We investigated ochratoxin A (OTA) contamination in raisin samples purchased from Slovak markets and determined the diversity of black-spored aspergilli as potential OTA and fumonisin (FB1 and FB2) producers.
Petra Mikušová   +5 more
doaj   +1 more source

The Deubiquitinase UCHL1 Drives Susceptibility to Atrial Fibrillation by Stabilizing CaMKII‐δ

open access: yesAdvanced Science, EarlyView.
UCHL1 is highly upregulated in mice and patients with AF. UCHL1 directly binds to and removes K48‐linked polyubiquitin chains from CaMKII‐δ at K251 and enhances CaMKII‐δ stability, which activates RyR2, disrupts Ca2+ handling, and promotes AF. These findings establish UCHL1 as a critical regulator of CaMKII‐δ stability and AF‐related Ca2+ handling ...
Hai‐Lian Bi   +6 more
wiley   +1 more source

Purification of Mg2+-dependent phosphatidate phosphohydrolase from rat liver: new steps and aspects [PDF]

open access: yes, 2005
A new procedure for the partial purification of Mg2+-dependent, N-ethylmaleimide-sensitive phosphatidate phosphohydrolase (Mg2+-PAP; EC 3.1.3.4) from rat liver cytosol is described, using protein precipitation with MgCl2, gel filtration on Sephacryl S ...
Hofstetter, Monika M., Siess, Elmar A.
core   +1 more source

Neonatal Sevoflurane Exposure Induces Long‐Term Cognitive Impairment via Epigenetically Mediated MMP9 Activation and Perineuronal Net Disruption in the Hippocampal CA2

open access: yesAdvanced Science, EarlyView.
Hippocampal CA2 perineuronal nets ensheathing excitatory pyramidal neurons are selectively vulnerable to repeated neonatal sevoflurane exposure. Epigenetic upregulation of MMP9 via reduced H3K27me3 disrupts PNN integrity, impairs BDNF–TrkB signaling, and causes synaptic protein loss and dendritic spine deficits, leading to persistent social and spatial
Lirong Liang   +11 more
wiley   +1 more source

Calmodulin: A Multitasking Protein in Kv7.2 Potassium Channel Functions

open access: yesBiomolecules, 2018
The ubiquitous calcium transducer calmodulin (CaM) plays a pivotal role in many cellular processes, regulating a myriad of structurally different target proteins.
Alessandro Alaimo, Alvaro Villarroel
doaj   +1 more source

Repeated haloperidol increases both calmodulin and a calmodulin-binding protein in rat striatum [PDF]

open access: yes, 1994
Repeated treatment with the antipsychotic drug, haloperidol, leads to an increased behavioral sensitivity to dopamine agonists exhibited upon withdrawal from the drug.
Agrawal, Alka   +4 more
core   +1 more source

EphB1 Receptor Blockade Augments Morphine Antinociception via Inhibiting GRK2‐Mediated µ‐Opioid Receptor Internalization

open access: yesAdvanced Science, EarlyView.
Administration of opioids activates ephrinB2‐EphB1 receptor signaling. Activated EphB1 receptors induce GRK2‐mediated phosphorylation of MOR at Ser375, which initiates the internalization of MOR and reduces opioid antinociception at the behavioral level. ABSTRACT Opioids are the primary treatment for severe pain in clinical practice.
Bo Peng   +7 more
wiley   +1 more source

Caracterização de um domínio do C-terminal de um canal de potássio [PDF]

open access: yes, 2010
Mestrado em Métodos BiomolecularesDomínios que ligam nucleotideos cíclicos (CNBD) regulam muitas vias de sinalização em células procarióticas e eucarióticas.
Carvalho, Maria João Marques de
core  

Oxygen-dependent erythropoietin production by the isolated perfused rat kidney [PDF]

open access: yes, 1991
In this study we have investigated the role of oxygen delivery and of classic second messengers on erythropoietin production by the isolated perfused rat kidney. We found that the rat kidney was capable of de novo synthesis of erythropoietin.
Scholz, Holger   +4 more
core   +1 more source

Probing calmodulin in living neurones [PDF]

open access: yes, 2000
In this thesis I explored the role of the calcium binding protein calmodulin in neuronal signalling in detail. Nerve cells have a high calmodulin content and calmodulin is involved in neuronal processes such as the memory models Long Term Potentiation ...
Milikan, Jacobus Martinus
core   +1 more source

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