Results 81 to 90 of about 149,426 (354)

Mitochondria‐associated membranes (MAMs): molecular organization, cellular functions, and their role in health and disease

open access: yesFEBS Open Bio, EarlyView.
Mitochondria‐associated membranes (MAMs) are contact sites between the endoplasmic reticulum and mitochondria that regulate calcium signaling, lipid metabolism, autophagy, and stress responses. This review outlines their molecular organization, roles in cellular homeostasis, and how dysfunction drives neurodegeneration, metabolic disease, cancer, and ...
Viet Bui   +3 more
wiley   +1 more source

Trapping of spermine, Kukoamine A, and polyamine toxin blockers in GluK2 kainate receptor channels

open access: yesNature Communications
Kainate receptors (KARs) are a subtype of ionotropic glutamate receptor (iGluR) channels, a superfamily of ligand-gated ion channels which mediate the majority of excitatory neurotransmission in the central nervous system. KARs modulate neuronal circuits
Shanti Pal Gangwar   +7 more
doaj   +1 more source

Combined use of beta-blockers and non-dihydropyridine calcium channel blockers: possible or contraindicated?

open access: yesРоссийский кардиологический журнал
One of the most effective medications used for various cardiac diseases and syndromes to improve symptoms and, in some cases, prognosis, are betablockers (BBs) and calcium channel blockers (CCBs).
S. S. Yakushin, K. G. Pereverzeva
doaj   +1 more source

Voltage-independent SK-channel dysfunction causes neuronal hyperexcitability in the hippocampus of Fmr1 knock-out mice [PDF]

open access: yes, 2019
Neuronal hyperexcitability is one of the major characteristics of fragile X syndrome (FXS), yet the molecular mechanisms of this critical dysfunction remain poorly understood. Here we report a major role of voltage-independent potassium (
Carlin, Dan   +6 more
core   +1 more source

Blockade of current through single calcium channels by trivalent lanthanide cations. Effect of ionic radius on the rates of ion entry and exit. [PDF]

open access: yes, 1990
Currents flowing through single dihydropyridine-sensitive Ca2+ channels were recorded from cell-attached patches on C2 myotubes. In the presence of dihydropyridine agonist to prolong the duration of single-channel openings, adding micromolar ...
Lansman, JB
core   +2 more sources

Molecular determinants of signal transduction in tropomyosin receptor kinases

open access: yesFEBS Open Bio, EarlyView.
Tropomyosin receptor kinases control critical neuronal functions, but how do the same receptors produce diverse cellular responses? This review explores the structural mechanisms behind Trk signaling diversity, focusing on allosteric modulation and ligand bias.
Giray Enkavi
wiley   +1 more source

Do beta-blockers prevent heart disease and strokes in people with high blood pressure? Evidence update - Summary of a Cochrane Review [PDF]

open access: yes, 2008
In people with high blood pressure, there is no evidence that beta-blockers reduce the number of deaths. Beta-blockers reduce the risk of stroke but are less effective than calcium channel blockers (CCBs) or renin-angiotensin system (RAS ...
Effective Health Care Research Consortium
core  

Calcium‐sensing receptor induces the apoptosis of chondrocytes in cooperation with phosphate transporter

open access: yesFEBS Open Bio, EarlyView.
Excess Ca2+ ions activate the Calcium‐Sensing Receptor (CaSR), which subsequently drives the uptake of excess inorganic phosphate (Pi) via the Pi transporter (Pit−1) in chondrocytes. This mechanism causes a toxic increase in intracellular Pi concentration, ultimately leading to chondrocyte apoptosis and pathological mineralization. Excess extracellular
Sachie Nakatani   +7 more
wiley   +1 more source

Calcium channel blockers, angiotensin receptor blockers, and angiotensin-converting enzyme inhibitors: Effectiveness in combination with diuretics or β-blockers for treating hypertension

open access: yesVascular Health and Risk Management, 2007
John D Bisognano1, Trent McLaughlin2, Craig S Roberts3, Simon SK Tang31Internal Medicine Department, Cardiology Division, the University of Rochester Medical Center, Rochester, NY, USA; 2NDC Health, Phoenix, Arizona, USA; 3Pfizer Inc, New York, NY ...
John D Bisognano   +3 more
doaj  

Age‐Related Changes in Myeloid Cells and Their Impact on Subcutaneous Melanoma Growth in Mice

open access: yesAging and Cancer, EarlyView.
Our findings reveal that age‐related changes in subcutaneous melanoma growth and immunotherapy response are context‐dependent. In models where tumor growth and treatment resistance increase with age, this effect is partly driven by enhanced immunosuppression from myeloperoxidase‐active Gr‐1⁺ myeloid cells.
Kaitlyn M. Landreth   +7 more
wiley   +1 more source

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