Results 51 to 60 of about 3,423,753 (363)

Inhibition of Contractility of Isolated Caprine Detrusor by the Calcium Channel Blocker Cilnidipine and Reversal by Calcium Channel Openers

Current Therapeutic Research, 2023
: Background: Cilnidipine is a fourth-generation calcium channel blocker that is clinically used to treat hypertension. It is a dihydropyridine that blocks L- and N-type calcium channels.
Steffi A. Maria, MD, Aniket Kumar, PhD, Premila M. Wilfred, MD, Margaret Shanthi, MD, Jacob Peedicayil, MD   +4 more
doaj   +1 more source

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

What calcium channels remember

eLife, 2023
A new mechanism involving intermediate gating states of calcium channels explains how analogue postsynaptic potentials influence neurotransmitter release.
Thomas Kaas, Jana Nerlich, Stefan Hallermann   +2 more
openaire   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

The inhibition of chloride intracellular channel 1 enhances Ca2+ and reactive oxygen species signaling in A549 human lung cancer cells

Experimental and Molecular Medicine, 2019
Cancer: chloride transport protein protects tumors A chloride channel, a membrane protein involved in chloride transport, indirectly regulates calcium signaling to protect cancer cells from free radicals and DNA damage.
Jae-Rin Lee, Jong-Yoon Lee, Hyun-Ji Kim, Myong-Joon Hahn, Jong-Sun Kang, Hana Cho   +5 more
doaj   +1 more source

Title: The L-type Ca2+ channel blocker nifedipine inhibits mycelial growth, sporulation, and virulence of Phytophthora capsici

Frontiers in Microbiology, 2016
The oomycete vegetable pathogen Phytophthora capsici causes significant losses of important vegetable crops worldwide. Calcium and other plant nutrients have been used in disease management of oomycete pathogens.
Peiqing Liu, jie gong, xueling ding, Yue Jiang, guoliang chen, benjin li, qiyong weng, Qinghe Chen   +7 more
doaj   +1 more source

Glucose decouples intracellular Ca2+ activity from glucagon secretion in mouse pancreatic islet alpha-cells. [PDF]

PLoS ONE, 2012
The mechanisms of glucagon secretion and its suppression by glucose are presently unknown. This study investigates the relationship between intracellular calcium levels ([Ca(2+)](i)) and hormone secretion under low and high glucose conditions.
Sylvain J Le Marchand, David W Piston
doaj   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

Effect of Efonidipine on TGF-β1–Induced Cardiac Fibrosis Through Smad2-Dependent Pathway in Rat Cardiac Fibroblasts

Journal of Pharmacological Sciences, 2011
.: Transforming growth factor beta-1 (TGF-β1) plays a critical role in progression of cardiac fibrosis, which may involve intracellular calcium change. We examined effects of efonidipine, a dual T-type and L-type calcium channel blocker (CCB), on TGF-β1 ...
Bai Lei, Hirofumi Hitomi, Tatsuhiko Mori, Yukiko Nagai, Kazushi Deguchi, Hirohito Mori, Tsutomu Masaki, Daisuke Nakano, Hiroyuki Kobori, Yasushi Kitaura, Akira Nishiyama   +10 more
doaj   +1 more source

Structural basis for Ca2+ selectivity of a voltage-gated calcium channel

Nature, 2013
Voltage-gated calcium (CaV) channels catalyse rapid, highly selective influx of Ca2+ into cells despite a 70-fold higher extracellular concentration of Na+. How CaV channels solve this fundamental biophysical problem remains unclear.
Lin Tang, Tamer M. Gamal El-Din, J. Payandeh, Gilbert Q. Martinez, Teresa M. Heard, T. Scheuer, Ning Zheng, W. Catterall   +7 more
semanticscholar   +1 more source