Results 21 to 30 of about 618,626 (288)

GTP and Ca2+ Modulate the Inositol 1,4,5-Trisphosphate-Dependent Ca2+ Release in Streptolysin O-Permeabilized Bovine Adrenal Chromaffin Cells [PDF]

open access: yes, 1991
The inositol 1,4,5-trisphosphate (IP3)-induced Ca2+ release was studied using streptolysin O-permeabilized bovine adrenal chromaffin cells. The IP3-induced Ca2+ release was followed by Ca2+ reuptake into intracellular compartments.
Föhr, K. J.   +9 more
core   +1 more source

Sediment metals adhering to biochar enhanced phosphorus adsorption in sediment capping

open access: yesWater Science and Technology, 2021
Metal ions in sediment are inherent Ca and Fe sources for biochar modification. In this work, the effect of Ca2+ and Fe2+ released from sediment on biochar for phosphorus adsorption was evaluated.
Cheng Gao   +4 more
doaj   +1 more source

Saltatory Propagation of Ca2+ Waves by Ca2+ Sparks [PDF]

open access: yesBiophysical Journal, 1998
Punctate releases of Ca2+, called Ca2+ sparks, originate at the regular array of t-tubules in cardiac myocytes and skeletal muscle. During Ca2+ overload sparks serve as sites for the initiation and propagation of Ca2+ waves in myocytes. Computer simulations of spark-mediated waves are performed with model release sites that reproduce the adaptive Ca2 ...
Keizer, Joel   +3 more
openaire   +2 more sources

Ontogeny of purinergic receptor-regulated Ca2+ signaling in mouse cortical collecting duct epithelium [PDF]

open access: yes, 2002
Changes in ATP-induced increase in {[}Ca2+], during collecting duct ontogeny were studied in primary monolayer cultures of mouse ureteric bud (UB) and cortical collecting duct (CCD) cells by Fura-PE3 fluorescence ratio imaging.
Tschop, J.   +4 more
core   +1 more source

CFTR deficiency aggravates Ang II induced vasoconstriction and hypertension by regulating Ca𝟐+ influx and RhoA/Rock pathway in VSMCs

open access: yesFrontiers in Bioscience-Landmark, 2021
Background: Cystic fibrosis transmembrane conductance regulator (CFTR) has been associated with vascular tone and blood pressure (BP), however, its role in the genesis of hypertension remains elusive.
Liyan Zhao   +8 more
doaj   +1 more source

Ca2+ Dependence of the Ca2+-selective TRPV6 Channel [PDF]

open access: yesJournal of Biological Chemistry, 2004
Microfluorimetry and patch-clamp experiments were performed on TRPV6-expressing HEK cells to determine whether this Ca(2+)-sensing Ca(2+) channel is constitutively active. Intact cells loaded with fura-2 had an elevated intracellular free Ca(2+) concentration ([Ca(2+)](i)), which decreased to the same level such as in non-transfected cells if external ...
Matthias, Bödding, Veit, Flockerzi
openaire   +2 more sources

Possible Role of N-Methyl-D-Aspartate Glutamate Receptors in The Induction of Acrosome Reaction in Human Sperm [PDF]

open access: yesCell Journal
Objective: Acrosome reaction is a receptor and Ca2+-dependent process. N-Methyl-D- aspartate (NMDA) glutamatereceptors are expressed in the human sperm and are involved in the Ca2+ influx.
Hamid Reza Momeni   +5 more
doaj   +1 more source

STIM Is a Ca2+ Sensor Essential for Ca2+-Store-Depletion-Triggered Ca2+ Influx [PDF]

open access: yesCurrent Biology, 2005
Ca(2+) signaling in nonexcitable cells is typically initiated by receptor-triggered production of inositol-1,4,5-trisphosphate and the release of Ca(2+) from intracellular stores. An elusive signaling process senses the Ca(2+) store depletion and triggers the opening of plasma membrane Ca(2+) channels.
Liou, J   +6 more
openaire   +2 more sources

The Electromagnetic potential gradient ,Ca2+ and Starch-Statoliths on the Uneven Growth of Plants

open access: yesTropical Agricultural Research, 2011
Effect of electromagnetic potential gradients on the uneven growth of shoot apex of Phaseolus vulgaris was investigated. Phaseolus vulgaris plants were fixed to a 3 - D clinostat with microelectrodes which applied an electromagnetic potential gradient (E.
PSB Wanduragala   +2 more
doaj   +1 more source

Eluate derived by extracorporal antibody-based immunoadsorption elevates the cytosolic Ca2+ concentration in podocytes via B-2 kinin receptors [PDF]

open access: yes, 2002
Background/Aim: Patients with idiopathic focal segmental glomerulosclerosis (FSGS) often develop a recurrence of the disease after kidney transplantation.
Pavenstadt, H.   +13 more
core   +1 more source

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