Results 11 to 20 of about 346,127 (305)

Calcium channels in lymphocytes [PDF]

Immunology, 2001
On B and T lymphocytes, ligation of the antigen receptor (AgR) induces a biphasic Ca2+ response. In the initial phase there is a large elevation in the intracellular Ca2+ concentration as a consequence of Ca2+ release from intracellular stores. This is followed by a lower, but prolonged elevation that is dependent on extracellular Ca2+.1,2 This simple ...
G, Grafton, L, Thwaite
openaire   +2 more sources

Calcium channel blockers- Induced iatrogenic gingival hyperplasia: Case series

Journal of Pharmacy and Bioallied Sciences, 2023
Hypertension rightfully termed as “Silent killer” is associated with increase in morbidity and mortality when left untreated. Calcium channel blockers are the most commonly prescribed first-line anti-hypertensive drugs in India.
G Agnes Golda Priyadarshini, Effie Edsor, S Sajesh, K Neha, Reneega Gangadhar   +4 more
doaj   +1 more source

Tissue-specific expression of calcium channels [PDF]

, 1993
The high-voltage-activated calcium channel is a multimeric protein complex containing 1, 2/δ, β, and γ subunits. The 1 subunit is the ion conduction channel and contains the binding sites for calcium channel blockers and toxins.
Biel, Biel, Bosse, Bosse, Catterall, Cavalié, Dascal, De Jongh, De Jongh, De Jongh, Diebold, Dubel, Ellis, Fleckenstein, Flockerzi, Glossmann, Guy, Hartzell, Heinemann, Hofmann, Hofmann, Hullin, Hymel, Jay, Jay, Kim, Kim, Klöckner, Lacerda, Mikami, Mintz, Mori, Mundiña-Weilenmann, Nakayama, Norman, Nunoki, Osterrieder, Perez-Reyes, Perez-Reyes, Pragnell, Regulla, Rotman, Ruth, Röhrkasten, Scino, Singer, Snutch, Striessnig, Striessnig, Tanabe, Tanabe, Tanabe, Tsien, Varadi, Wei, Welling, Welling, Williams, Williams, Yatani   +59 more
core   +1 more source

Human sperm ion channel (dys)function:implications for fertilization [PDF]

, 2019
BACKGROUND: Intensive research on sperm ion channels has identified members of several ion channel families in both mouse and human sperm. Gene knock-out studies have unequivocally demonstrated the importance of the calcium and potassium conductances in ...
Barratt, Christopher L. R., Brown, Sean G., Martins da Silva, Sarah J., Publicover, Stephen J.   +3 more
core   +4 more sources

Energetics of discrete selectivity bands and mutation-induced transitions in the calcium-sodium ion channels family [PDF]

, 2013
We use Brownian dynamics (BD) simulations to study the ionic conduction and valence selectivity of a generic electrostatic model of a biological ion channel as functions of the fixed charge Qf at its selectivity filter.
Eisenberg, Robert S., Kaufman, Igor, Luchinsky, Dmitrii G., McClintock, Peter V. E., Tindjong, Rodrigue   +4 more
core   +2 more sources

Mitogens and Calcium Channels [PDF]

Physiology, 1997
Mitogens and, in particular, growth factors can induce changes in free intracellular Ca2+ concentration by opening voltage-independent cationic channels, with different degrees of Ca2+ selectivity. Recent work has provided preliminary insights into the nature of these channels and their role in the control of cell cycle progression.
LOVISOLO, Davide, DISTASI, Carla, ANTONIOTTI, Susanna, MUNARON, Luca Maria   +3 more
openaire   +2 more sources

Cholesterol influences voltage-gated calcium channels and BK-type potassium channels in auditory hair cells. [PDF]

PLoS ONE, 2011
The influence of membrane cholesterol content on a variety of ion channel conductances in numerous cell models has been shown, but studies exploring its role in auditory hair cell physiology are scarce.
Erin K Purcell, Liqian Liu, Paul V Thomas, R Keith Duncan   +3 more
doaj   +1 more source

A functional role for small-conductance calcium-activated potassium channels in sensory pathways including nociceptive processes [PDF]

, 2005
We investigated the role of small-conductance calcium-activated potassium (SK) and intermediate-conductance calcium-activated potassium channels in modulating sensory transmission from peripheral afferents into the rat spinal cord.
Bahia, PK, Benton, DCH, Chen, MX, Dickenson, AH, Jowett, AJ, Moss, GWJ, Suzuki, R, Trezise, DJ   +7 more
core   +1 more source

A change in configuration of the calmodulin-KCNQ channel complex underlies Ca2+-dependent modulation of KCNQ channel activity. [PDF]

PLoS ONE, 2013
All subtypes of KCNQ channel subunits (KCNQ1-5) require calmodulin as a co-factor for functional channels. It has been demonstrated that calmodulin plays a critical role in KCNQ channel trafficking as well as calcium-mediated current modulation. However,
Anastasia Kosenko, Naoto Hoshi
doaj   +1 more source

Presynaptic calcium channels [PDF]

Neuroscience Research, 2018
Presynaptic Ca2+ entry occurs through voltage-gated Ca2+ (CaV) channels which are activated by membrane depolarization. Depolarization accompanies neuronal firing and elevation of Ca2+ triggers neurotransmitter release from synaptic vesicles. For synchronization of efficient neurotransmitter release, synaptic vesicles are targeted by presynaptic Ca2 ...
openaire   +3 more sources