User profiles for K. Ondrias

Karol Ondrias

Slovak Academy of Sciences, Bratislava
Verified email at savba.sk
Cited by 5741

Stabilization of calcium release channel (ryanodine receptor) function by FK506-binding protein

AMB Brillantes, K Ondrias, A Scott, E Kobrinsky… - Cell, 1994 - cell.com
FK506-binding protein (FKBP12) was originally identified as the cytosolic receptor for the
immunosuppressant drugs FK506 and rapamycin. The cellular function of FKBP12, a …

Coupled Gating Between Individual Skeletal Muscle Ca2+ Release Channels (Ryanodine Receptors)

SO Marx, K Ondrias, AR Marks - Science, 1998 - science.org
Excitation-contraction coupling in skeletal muscle requires the release of intracellular calcium
ions (Ca 2+ ) through ryanodine receptor (RyR1) channels in the sarcoplasmic reticulum. …

Coupled gating between cardiac calcium release channels (ryanodine receptors)

…, M Gaburjakova, C Henrikson, K Ondrias… - Circulation …, 2001 - Am Heart Assoc
… We also observed coupled gating between RyR2 channels with K + used as the charge
carrier (n=3; with use of 250 mmol/L KCl trans/50 mmol/L KCl cis, data not shown). Dissociation …

[HTML][HTML] The impact of gut microbiota metabolites on cellular bioenergetics and cardiometabolic health

L Tomasova, M Grman, K Ondrias, M Ufnal - Nutrition & metabolism, 2021 - Springer
Recent research demonstrates a reciprocal relationship between gut microbiota-derived
metabolites and the host in controlling the energy homeostasis in mammals. On the one hand, …

Key bioactive reaction products of the NO/H2S interaction are S/N-hybrid species, polysulfides, and nitroxyl

…, G McLeod, H Nakagawa, K Ondrias… - Proceedings of the …, 2015 - National Acad Sciences
Experimental evidence suggests that nitric oxide (NO) and hydrogen sulfide (H 2 S) signaling
pathways are intimately intertwined, with mutual attenuation or potentiation of biological …

[HTML][HTML] Inorganic polysulfides and related reactive sulfur–selenium species from the perspective of chemistry

…, A Misak, E Domínguez-Álvarez, MJ Nasim, K Ondrias… - Molecules, 2019 - mdpi.com
Polysulfides (H 2 S x ) represent a class of reactive sulfur species (RSS) which includes
molecules such as H 2 S 2 , H 2 S 3 , H 2 S 4 , and H 2 S 5, and whose presence and impact in …

Regulation of the inositol 1, 4, 5-trisphosphate receptor by tyrosine phosphorylation

T Jayaraman, K Ondrias, E Ondria, AR Marks - Science, 1996 - science.org
Tyrosine kinases indirectly raise intracellular calcium concentration ([Ca 2+ ] i ) by activating
phospholipases that generate inositol 1,4,5-trisphosphate (IP 3 ). IP 3 activates the IP 3 …

The inositol 1, 4, 5-trisphosphate receptor is essential for T-cell receptor signaling.

…, E Ondriasova, K Ondrias… - Proceedings of the …, 1995 - National Acad Sciences
Antigen-specific activation of T lymphocytes, via stimulation of the T-cell antigen receptor (TCR)
complex, is marked by a rapid and sustained increase in the concentration of …

[HTML][HTML] Protein kinase A and two phosphatases are components of the inositol 1, 4, 5-trisphosphate receptor macromolecular signaling complex

N DeSouza, S Reiken, K Ondrias, Y Yang… - Journal of Biological …, 2002 - ASBMB
The inositol 1,4,5-trisphosphate receptor (IP3R) is a ubiquitously expressed intracellular
calcium (Ca 2+ ) release channel on the endoplasmic reticulum. IP3Rs play key roles in …

Intracolonic hydrogen sulfide lowers blood pressure in rats

…, H Jurkowska, M Wróbel, T Huc, K Ondrias… - Nitric Oxide, 2016 - Elsevier
… the fact that in various vascular beds the activation of K ATP -channels may lead to different
… inhibitor of K ATP -channels) blocks the H 2 S mediated relaxation, while pinacidil (a K ATP -…