Results 71 to 80 of about 36,307 (249)

The Role of torS and torT Transcription in Driving a Bet‐Hedging Strategy for Trimethylamine N‐Oxide Reductase Expression in Escherichia coli

Molecular Microbiology, EarlyView.
Low basal activity of divergent promoters driving transcription of the trimethylamine N‐oxide (TMAO) sensor TorT and kinase TorS is integral to an O2‐regulated bet‐hedging strategy for continued E. coli growth upon the onset of anaerobiosis. This, along with repression by IscR, promotes noise in the TorS to TorT ratio, which is critical for adaptation ...
Erin L. Mettert, Jeffrey N. Carey, Wilma Ross, Mark Goulian, Patricia J. Kiley   +4 more
wiley   +1 more source

Photosynthetic glyceraldehyde 3‐phosphate dehydrogenase B is present in the last common ancestor of Viridiplantae predating the Streptophyta–Chlorophyta split

New Phytologist, EarlyView.
Predicted evolutionary history of GAPA (blue squares), CP12 (red circles), and GAPB (represented as a fusion of a blue square and half red circle) across the Viridiplantae.
Alex P. Mann, James E. M. Stach, Maxim V. Kapralov, Patricia E. Lopez‐Calcagno   +3 more
wiley   +1 more source

Effect of Autoregulation resistance training on repetition maximum resistance training periodization: A mini review [PDF]

Journal of Sports and Rehabilitation Sciences
Repetition maximum regimes, including the Delorme method, repetition maximum, strength zone, hypertrophy zone, local muscular endurance zone, and autoregulation progression resistance model training for the trained resistance population manipulate ...
Yeliz Kahraman
doaj   +1 more source

PFA Under Deep Sedation and Non‐Invasive Monitoring in Atrial Fibrillation Patients With Obstructive Sleep Apnea

Pacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Clinical data about pulsed field ablation (PFA) under deep sedation among patients with obstructive sleep apnea (OSA) are limited, while the optimal periprocedural monitoring is not established. We report our experience in PFA among patients with atrial fibrillation (AF) and OSA, using a continuous non‐invasive respiratory and ...
Dionyssios Leftheriotis, Konstantinos A. Papathanasiou, Efstratios Karamanolis, Areti Vlachodiamanti, Evangelia Stamatopoulou, Maria Polikandrioti, Panagiota Flevari   +6 more
wiley   +1 more source

Splicing to keep splicing: A feedback system for cellular homeostasis and state transition

Clinical and Translational Medicine
Background Alternative splicing (AS) plays a crucial role in regulating gene expression and governing proteomic diversity by generating multiple protein isoforms from a single gene. Increasing evidence has highlighted the regulation for pre‐mRNA splicing
Zhonghao Guo, Xurui Zhang, Yachen Li, Yule Chen, Yungang Xu   +4 more
doaj   +1 more source

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

Experimental Physiology, EarlyView.
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato, Yojiro Ogawa, Ken‐ichi Iwasaki   +2 more
wiley   +1 more source

Regional changes in cerebral blood flow between the upright and supine posture and over 3 days of bed rest

Experimental Physiology, EarlyView.
Abstract A reduction in cerebral blood flow (CBF) has been observed during spaceflight and bed rest. We aimed to examine the magnitude and regional heterogeneity of the decrease in CBF during bed rest compared to posture changes on Earth. Seventeen participants (age, 29 ± 9 years, 7 females) were studied in the upright and supine posture and over 3 ...
Carmen Possnig, Kyohei Marume, Gautam Babu, Sylvan L. J. E. Janssen, Christopher M. Hearon Jr, Katrin A. Dias, Satyam Sarma, Justin S. Lawley, Benjamin D. Levine   +8 more
wiley   +1 more source

Correlation of rheoencephalography and laser Doppler flow: a rat study

Journal of Electrical Bioimpedance, 2016
Measuring brain electrical impedance (rheoencephalography) is a potential technique for noninvasive, continuous neuro-monitoring of cerebral blood flow autoregulation in humans.
Bodo Michael, Sheppard Ryan, Hall Aaron, Baruch Martin, Laird Melissa, Tirumala Shravalya, Mahon Richard   +6 more
doaj   +1 more source

Prior Belief Before Bayesian Statistics

Acta Paediatrica, EarlyView.
G. Greisen, M. L. Hansen, M. H. Olsen
wiley   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

Experimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source