Results 201 to 210 of about 235,648 (296)

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source

Multivariate evaluation of protein and energy utilization in Peruvian Guinea pigs (<i>Cavia porcellus</i>) under different feeding regimens. [PDF]

Vet World
Tapie WA, Escobar-Restrepo CS, Manrique-Hincapie JF.   +2 more
europepmc   +1 more source

Fetal glucose availability: a key regulator of the metabolic, hormonal and contractility profiles of the fetal sheep heart

The Journal of Physiology, EarlyView.
Abstract figure legend To investigate the role of glucose availability in fetal left ventricle (LV) development, this study assessed whether maternal late gestation undernutrition (LGUN; 50% of Control diet) induced alterations in the contractility, metabolic, and hormonal profile can be ameliorated in LGUN fetuses receiving glucose infusion (LGUN+G ...
Melanie R. Bertossa, Jack R. T. Darby, Stacey L. Holman, Steven K. S. Cho, Ashley S. Meakin, Mitchell C. Lock, Jordan A. Minns, Michael D. Wiese, Christopher K. Macgowan, Mike Seed, Janna L. Morrison   +10 more
wiley   +1 more source

Digital measurement of pupil size, corneal size, and eccentricity in Guinea pigs using python compared with traditional OCT. [PDF]

Sci Rep
Wu H, Qiao Z, Cheng C, Luo W, Wan T, Lu N, Qiao T, Di Y.   +7 more
europepmc   +1 more source

Repolarization adaptation to rapid change in heart rate in human models – a review

The Journal of Physiology, EarlyView.
Abstract figure legend This review focuses on non‐invasive assessment of repolarization duration and dispersion (heterogeneity) adaptation to change in heart rate (HR). HR was increased incrementally by left atrial pacing during an electrophysiology (EP) study and by a bolus injection of atropine and in a step up/down fashion by repeated right atrial ...
Lennart Bergfeldt, Karl‐Jonas Axelsson, Pia Dahlberg, Farzad Vahedi, Gunilla Lundahl, Lennart Gransberg   +5 more
wiley   +1 more source

Fluazuron Baits in the Control of <i>Amblyomma sculptum</i> Tick: Efficacy and Pharmacokinetics Using Guinea Pigs as an Experimental Model. [PDF]

Pathogens
Borges DA, Bonfim IV, Dutra CR, Jesus ILR, Monteiro R, Assis RCP, Miranda FR, Cid YP, Scott FB.   +8 more
europepmc   +1 more source

Computational modelling of the pro‐ and antiarrhythmic effects of atrial high rate‐dependent trafficking of small‐conductance calcium‐activated potassium channels

The Journal of Physiology, EarlyView.
Abstract figure legend Small‐conductance calcium‐activated potassium (SK) channels are important for atrial repolarization and can be targeted for atrial‐specific antiarrhythmic treatments. We developed a computational model with a calcium sensor to study the effects of increased pacing rate (5 Hz), which enhances SK‐channel gating and forward ...
Stefan Meier, Dobromir Dobrev, Paul G. A. Volders, Jordi Heijman   +3 more
wiley   +1 more source

Deciphering pro‐arrhythmogenic mechanisms of EPAC in human atrial cardiomyocytes

The Journal of Physiology, EarlyView.
Abstract figure legend This study aimed to investigate the effect of exchange proteins directly activated by cAMP (EPAC) on the regulation of human atrial cardiomyocyte electrophysiology and their potential involvement in the onset of atrial fibrillation (AF).
Arthur Boileve, Margaux Aize, Maximin Détrait, Laura Brard, Adrien Leboyer, Pierre‐Antoine Dupont, Alexandre Lebrun, Vladimir Saplacan, Christophe Simard, Fabien Brette, Frank Lezoualc'h, Laurent Sallé   +11 more
wiley   +1 more source

In-vivo sclera thickness measurements in experimental myopia of guinea pigs. [PDF]

BMC Ophthalmol
Zhang R, Yu C, Dong L, Li Y, Shi X, Wu H, Zhou W, Li H, Wei W.   +8 more
europepmc   +1 more source

Anatomical and functional mapping of vagal nociceptive sensory nerve subsets innervating the mouse lower airways by intersectional genetics

The Journal of Physiology, EarlyView.
Abstract figure legend We used an intersectional approach with recombinase‐expressing mice and adeno‐associated virus to map and modulate distinct nociceptive afferents in the vagal ganglia. TRPV1+P2X2+ neurons resided in the nodose ganglion (N), innervated the lungs (many projected into the alveoli) but not the trachea, and projected to the nucleus ...
Mayur J. Patil, Justin Shane Hooper, Seol‐Hee Kim, Parmvir K. Bahia, Nika Pavelkova, Sanjay S. Nair, Teresa S. Darcey, Karina V. Lurye, Meghana Madaram, Jailene Fiallo, Stephen H. Hadley, Thomas E. Taylor‐Clark   +11 more
wiley   +1 more source