Results 71 to 80 of about 26,899 (190)

Oxidative stress and hepatotoxicity in rats induced by poisonous pufferfish (Lagocephalus lagocephalus) meat

Journal of Venomous Animals and Toxins including Tropical Diseases, 2009
This study was undertaken to evaluate the effect of pufferfish (Lagocephalus lagocephalus) meat poisoning on hepatic functions of Wistar rats. For this purpose, groups of rats (Lcr, Lcu+b and Lcu-b) received diet supplemented with 10% of raw or cooked ...
M Saoudi, A Abdelmouleh, F Ellouze, K Jamoussi, A El Feki   +4 more
doaj   +1 more source

NMDA receptor subunit‐dependent analysis of radiprodil inhibition in neonatal male rat substantia nigra dopaminergic neurons

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Radiprodil is a GluN2B subunit selective NMDA receptor negative allosteric modulator which is currently under clinical investigation as a possible anti‐epileptic drug for paediatric use. Our goal was to investigate the inhibition of dopaminergic neuron NMDA responses by radiprodil.
Bangyuan Liu, Alasdair J. Gibb
wiley   +1 more source

Biomedical and pharmacological potential of tetrodotoxin-producing bacteria isolated from marine pufferfish Arothron hispidus (Muller, 1841)

Journal of Venomous Animals and Toxins including Tropical Diseases, 2010
Specimens of the pufferfish Arothron hispidus collected at Parangipettai, on the southeast coast of India, were subjected to bacterial isolation and identification.
S Bragadeeswaran, D Therasa, K Prabhu, K Kathiresan   +3 more
doaj   +1 more source

Persistent in vitro nociceptor hyperexcitability and axonal retraction produced by repeated paclitaxel doses

The FEBS Journal, EarlyView.
Repeated paclitaxel exposure causes long‐lasting nociceptor hyperexcitability and axonal retraction in adult sensory neurons. Using a long‐term primary nociceptor culture, we show that hyperexcitability is mediated by sequential upregulation of NaV1.8, TRPV1, TRPA1, and TRPM8 channels.
Angela Lamberti, Victor Moreno Lozano, Asia Fernández‐Carvajal, Antonio Ferrer‐Montiel   +3 more
wiley   +1 more source

The epigenetic landscape of skeletal muscle in response to exercise and aging

The FEBS Journal, EarlyView.
Epigenetic mechanisms regulate gene expression in response to exercise and aging, thereby supporting skeletal muscle plasticity. Acute exercise induces chromatin remodeling through histone modifications and DNA methylation, promoting the expression of exercise‐responsive genes.
Sabrina Champsi, David A. Hood
wiley   +1 more source

Noise‐induced reduction and early recovery of superior paraolivary nucleus sound‐offset responses

The Journal of Physiology, EarlyView.
Abstract figure legend Acoustic over‐exposure transiently disrupts auditory temporal processing in mouse superior paraolivary nucleus neurons. In control conditions, neurons exhibit robust sound‐offset (OFF) responses, which are abolished immediately following noise trauma, indicating impaired temporal encoding.
Mihai Stancu, Ezhilarasan Rajaram, Joseph A. Kroeger, Benedikt Grothe, Conny Kopp‐Scheinpflug   +4 more
wiley   +1 more source

Dynamic memory in rodent C‐fibres and its impact on spinal nociceptive processing

The Journal of Physiology, EarlyView.
Abstract figure legend Nociceptive C‐fibres display activity‐dependent slowing (ADS) whereby successive action potentials are conducted progressively slower thus regulating the temporal relay of pain signals. This study shows that the ADS induced by short stimulus trains (which mimic stimulus evoked firing, shown in orange) is modified by prior ...
Atanaska N. Velichkova, Carole Torsney
wiley   +1 more source

Trafficking and potentiation of Nav1.7 and Nav1.8 channels are mediated by IQGAP1

The Journal of Physiology, EarlyView.
Abstract figure legend IQGAP1 binds to the voltage‐gated Nav1.7 and Nav1.8 channels and TRPA1 channels in sensory neurons. Inflammatory mediators (IM), including PGE2 and TNFα, released during nerve injury and inflammation activate intracellular signalling messengers such as PKA, p38 MAPK and Cdc42 through their respective receptors.
Xuming Zhang, Pabitra Hriday Patra, Jinquan Yang   +2 more
wiley   +1 more source

Intrinsic pH chemosensitivity of acutely dissociated medullary serotonergic and retrotrapezoid neurones

The Journal of Physiology, EarlyView.
Abstract figure legend Central respiratory chemoreceptors (CRCs) are critical for maintaining normal systemic levels of pH and PCO2. A CRC must respond to pH via intrinsic mechanisms. Here we quantified intrinsic chemosensitivity of medullary 5‐HT neurones and retrotrapezoid nucleus (RTN) neurones using acute dissociation.
Yuanming Wu, Eduardo Bravo, George Bradley Richerson   +2 more
wiley   +1 more source

Electrostatic tuning of NaV channel activation by the domain II S3–S4 extracellular loop

The Journal of Physiology, EarlyView.
Abstract figure legend Voltage‐gated sodium (NaV) channels are critical for electrical signalling, yet the molecular determinants that tune isoform‐specific activation remain incompletely understood. Here, we show that charged amino acids in the extracellular DII S3–S4 loop of NaV1.7 play a key role in setting voltage‐dependent activation.
Ashvriya Thapa, Lotten Ragnarsson, Hue Tran, Angelo Keramidas, Jennifer R. Deuis, Irina Vetter   +5 more
wiley   +1 more source