Results 101 to 110 of about 1,441,839 (397)

TRIM40 Drives Pathological Cardiac Hypertrophy and Heart Failure via Ubiquitination of PKN2

Advanced Science, EarlyView.
This study identifies the E3 ligase TRIM40 as a key driver of pathological cardiac hypertrophy. TRIM40 binds PKN2 via its B‐box domain and, through its C29‐dependent catalytic activity, mediates K63‐linked ubiquitination of PKN2. This modification enhances PKN2 phosphorylation at Ser815, thereby driving hypertrophy.
Risheng Zhao, Xiaoli Cui, Huizhu Du, Zhuoqun Wang, Chang Liu, Linxin Zhang, Jianing Qi, Di Yang, Hui Yu, Shuang Yan, Wei Liu, Haiming Sun, Mengyang Wang   +12 more
wiley   +1 more source

PI3Ks maintain the structural integrity of T-tubules in cardiac myocytes. [PDF]

PLoS ONE, 2011
Phosphoinositide 3-kinases (PI3Ks) regulate numerous physiological processes including some aspects of cardiac function. Although regulation of cardiac contraction by individual PI3K isoforms has been studied, little is known about the cardiac ...
Chia-Yen C Wu, Zhiheng Jia, Wei Wang, Lisa M Ballou, Ya-Ping Jiang, Biyi Chen, Richard T Mathias, Ira S Cohen, Long-Sheng Song, Emilia Entcheva, Richard Z Lin   +10 more
doaj   +1 more source

IL-1α and TNF-α Down-Regulate CRH Receptor-2 mRNA Expression in the Mouse Heart [PDF]

, 2001
Two receptors (CRH receptor type 1 and CRH receptor type 2) have been identified for the stress-induced neuropeptide, CRH and related peptides, urocortin, and urocortin II.
Coste, Sarah C., Heldwein, Kurt A., Stenzel-Poore, Mary P., Stevens, Susan L., Tobar-Dupres, Eric   +4 more
core   +2 more sources

Renal vessel–assisted anastomosis improves the abdominal heart transplant model in rats without bilateral lower limb ischemia

Animal Models and Experimental Medicine, EarlyView.
A modified heterotopic heart transplantation (HTx) in rats was reported to improve the surgical success rate, in which the donor's vessels, the brachiocephalic trunk (BT) and the pulmonary artery (PA), were sutured to the recipient's left renal artery (RA) and left renal vein (RV).
Meng Wang, Wuxia Wang, Xunfeng Zou
wiley   +1 more source

Functional role of t-tubules on calcium transients in canine cardiac myocytes

Heart and Mind, 2019
Background: A loss of t-tubules and alterations in ultrastructure occur in cultured ventricular myocytes. A similar alteration in t-tubules and ultrastructure is well documented under certain pathological conditions such as heart failure. We examined the
Alicia A Barnes, Zachary E Williams, Samuel Olzcyk, Alida Cooke, Jonathan A Cordeiro, Tanya Zeina, Rueben Mathew, Jacqueline A Treat, Gary L Aistrup, Jonathan M Cordeiro   +9 more
doaj   +1 more source

Restricting excessive cardiac action potential and QT prolongation: a vital role for IKs in human ventricular muscle [PDF]

, 2005
Background - Although pharmacological block of the slow, delayed rectifier potassium current (I-Ks) by chromanol 293B, L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the ...
Biliczki, Péter, Bitay, Miklós, Bogáts, Gábor, Jost, Norbert, Lathrop, David A., Lengyel, Csaba Attila, Nagy, Zsolt, Papp, Gyula, Takács, János, Varró, András, Virág, László   +10 more
core   +1 more source

Skeletal Muscle Biomarkers of Amyotrophic Lateral Sclerosis: A Large‐Scale, Multi‐Cohort Proteomic Study

Annals of Neurology, EarlyView.
Objective Biomarkers with clear contexts of use are important tools for amyotrophic lateral sclerosis (ALS) therapy development. Understanding their longitudinal trajectory in the untreated state is key to their use as potential markers of pharmacodynamic response.
Oleksandr Dergai, Joanne Wuu, Magdalena Koziczak‐Holbro, Andrea Malaspina, Volkan Granit, Jessica P. Hernandez, Anne Cooley, Ruchika Sachdev, Lili Yu, Michael Bidinosti, Ludivine Flotte, Mark Nash, Lori L. Jennings, James D. Berry, Lucie I. Bruijn, Sophie Brachat, Michael Benatar   +16 more
wiley   +1 more source

Increased sarcolemmal Na+/H+ exchange activity in hypertrophied myocytes from dogs with chronic atrioventricular block

Frontiers in Physiology, 2013
Dogs with compensated biventricular hypertrophy due to chronic atrioventricular block (cAVB), are more susceptible to develop drug-induced Torsade-de-Pointes arrhythmias and sudden cardiac death.
Marcel evan Borren, Marc eVos, Marien eHoutman, Gudrun eAntoons, Jan Hindrik Ravesloot   +4 more
doaj   +1 more source

Ventricular Action Potential Adaptation to Regular Exercise: Role of β-adrenergic and K\u3csub\u3eATP\u3c/sub\u3e Channel Function [PDF]

, 2017
Regular exercise training is known to affect the action potential duration (APD) and improve heart function, but involvement of β-adrenergic receptor (β-AR) subtypes and/or the ATP-sensitive K+ (KATP) channel is unknown.
Fitts, Robert H., Wang, Xinrui
core   +1 more source

Chronic beta-adrenoceptor blockade and human atrial cell electrophysiology: evidence of pharmacological remodelling [PDF]

, 2003
<b>Objective:</b> Chronic beta-adrenoceptor antagonist (β-blocker) treatment reduces the incidence of reversion to AF in patients, possibly via an adaptive myocardial response.
Kane, K.A., Norrie, J., Rankin, A.C., Russell, J.A., Workman, A.J.   +4 more
core   +1 more source