journal
https://read.qxmd.com/read/37738097/opening-the-door-to-physiological-impacts-underlying-opioid-induced-respiratory-depression-and-therapeutic-strategies-focus-on-fentanyl
#1
JOURNAL ARTICLE
Brian A Baldo
No abstract text is available yet for this article.
September 22, 2023: Journal of Physiology
https://read.qxmd.com/read/37737742/plasticity-of-gastrointestinal-vagal-afferents-in-terms-of-feeding-related-physiology-and-pathophysiology
#2
JOURNAL ARTICLE
Amanda J Page
Gastrointestinal vagal afferents play an important role in communicating food related information from the gut to the brain. This information initiates vago-vagal reflexes essential for gut functions, including gut motility and secretions. These afferents also play a role in energy homeostasis, signalling the arrival, amount and nutrient composition of a meal to the central nervous system where it is processed ultimately leading to termination of a meal. Vagal afferent responses to food related stimuli demonstrate a high degree of plasticity, responding to short term changes in nutritional demand, such as the fluctuations that occur across a 24-hr or in response to a fast, as well as long term changes in energy demand, such as occurs during pregnancy...
September 22, 2023: Journal of Physiology
https://read.qxmd.com/read/37732475/temporal-optimization-of-exercise-to-lower-fasting-glucose-levels
#3
JOURNAL ARTICLE
Jill A Kanaley, J W Porter, N C Winn, G Lastra, A Chockalingam, R J Pettit-Mee, G F Petroski, C Cobelli, M Schiavon, E J Parks
Exercise stimulates glucose uptake and increases insulin sensitivity acutely. Temporally optimizing exercise timing may minimize the nocturnal rise in glucose levels. This study examined the effect of exercise timing on evening and overnight glucose concentrations in individuals who were non-obese with normal fasting glucose levels (Non-Ob; n = 18) and individuals with obesity (OB) with impaired fasting glucose levels (OB+IFG) and without (n = 16 and n = 18, respectively). Subjects were studied on three occasions (no exercise (NOEX)), morning exercise (AMEX; 0700 h) and evening exercise (PMEX; 2000 h)...
September 21, 2023: Journal of Physiology
https://read.qxmd.com/read/37732418/benefits-beyond-cardiometabolic-health-the-potential-of-frequent-high-intensity-exercise-snacks-to-improve-outcomes-for-those-living-with-and-beyond-cancer
#4
JOURNAL ARTICLE
David G Jenkins, James L Devin, Kathryn L Weston, Joseph G Jenkins, Tina L Skinner
High intensity interval training (HIIT) has been shown to consistently elicit rapid and significant adaptations in a number of physiological systems, across many different healthy and clinical populations. In addition, there is increasing interest in how some acute, yet transient responses to high intensity exercise potentially reduce the risks of particular diseases. Recent work has shown that discrete, brief bouts of high intensity exercise (termed 'exercise snacks') can improve glucose control and vascular health and thus counter the negative cardiometabolic consequences of prolonged, uninterrupted periods of inactivity...
September 21, 2023: Journal of Physiology
https://read.qxmd.com/read/37728309/can-the-exercise-pressor-reflex-still-go-with-the-flow
#5
JOURNAL ARTICLE
Audrey J Stone, Milena Samora
No abstract text is available yet for this article.
September 20, 2023: Journal of Physiology
https://read.qxmd.com/read/37725436/the-separation-and-identification-of-circulating-small-extracellular-vesicles-from-endurance-trained-strength-trained-and-recreationally-active-men
#6
JOURNAL ARTICLE
Ian A J Darragh, Niamh McNamee, Róisín Daly, Sarai Martinez Pacheco, Lorraine O'Driscoll, Brendan Egan
Small extracellular vesicles (EV) are membrane-encapsulated particles that carry bioactive cargoes, are released by all cell types and are present in all human biofluids. Changes in EV profiles and abundance occur in response to acute exercise, but this study investigated whether individuals with divergent histories of exercise training (recreationally active controls - CON; endurance-trained - END; strength-trained - STR) presented with varied abundances of small EVs in resting samples and whether the abundance of small EVs differed within each group across two measurement days...
September 19, 2023: Journal of Physiology
https://read.qxmd.com/read/37724716/structural-and-functional-analysis-of-salivary-intercalated-duct-cells-reveals-a-secretory-phenotype
#7
JOURNAL ARTICLE
Amanda M Wahl, Takahiro Takano, Shan Su, Blake M Warner, Paola Perez, James Sneyd, David I Yule
Currently, all salivary ducts (intercalated, striated and collecting) are assumed to function broadly in a similar manner, reclaiming ions that were secreted by the secretory acinar cells while preserving fluid volume and delivering saliva to the oral cavity. Nevertheless, there has been minimal investigation into the structural and functional differences between distinct types of salivary duct cells. Therefore, in this study, the expression profile of proteins involved in stimulus-secretion coupling, as well as the function of the intercalated duct (ID) and striated duct cells, was examined...
September 19, 2023: Journal of Physiology
https://read.qxmd.com/read/37723606/hypoxic-sensitivity-and-burden-predict-propensity-for-respiratory-plasticity-in-humans
#8
JOURNAL ARTICLE
Ken D O'Halloran
No abstract text is available yet for this article.
September 18, 2023: Journal of Physiology
https://read.qxmd.com/read/37723409/diet-composition-during-the-early-post-nursing-period-in-male-mice-macronutrients-matter
#9
JOURNAL ARTICLE
Elliott S Neal, Dayna A Zimmerman, Rebecca L Brady
No abstract text is available yet for this article.
September 18, 2023: Journal of Physiology
https://read.qxmd.com/read/37721172/the-mega-evolution-of-life-with-its-three-memory-systems-depends-on-sender-receiver-communication-and-problem-solving-a-narrative-review
#10
REVIEW
Arnold De Loof
It should be the ultimate goal of any theory of evolution to delineate the contours of an integrative system to answer the question: How does life (in all its complexity) evolve (which can be called mega-evolution)? But how to plausibly define 'life'? My answer (1994-2023) is: 'life' sounds like a noun, but denotes an activity, and thus is a verb. Life (L) denotes nothing else than the total sum (∑) of all acts of communication (transfer of information) (C) executed by any type of senders-receivers at all their levels (up to at least 15) of compartmental organization: L = ∑C...
September 18, 2023: Journal of Physiology
https://read.qxmd.com/read/37715737/deciphering-calcium-signals-in-cells-and-tissues-with-tailored-probes-and-models
#11
EDITORIAL
Nicolas Demaurex
No abstract text is available yet for this article.
September 16, 2023: Journal of Physiology
https://read.qxmd.com/read/37715703/age-related-changes-in-p2y-receptor-signalling-in-mouse-cochlear-supporting-cells
#12
JOURNAL ARTICLE
Sarah A Hool, Jing-Yi Jeng, Daniel J Jagger, Walter Marcotti, Federico Ceriani
Our sense of hearing depends on the function of a specialised class of sensory cells, the hair cells, which are found in the organ of Corti of the mammalian cochlea. The unique physiological environment in which these cells operate is maintained by a syncitium of non-sensory supporting cells, which are crucial for regulating cochlear physiology and metabolic homeostasis. Despite their importance for cochlear function, the role of these supporting cells in age-related hearing loss, the most common sensory deficit in the elderly, is poorly understood...
September 16, 2023: Journal of Physiology
https://read.qxmd.com/read/37712578/an-apparent-paradox-across-the-time-course-and-magnitude-of-oxygen-sensing-in-humans-is-a-one-size-fits-all-hypoxic-response-up-in-the-air
#13
JOURNAL ARTICLE
Trevor A Day, Richard J A Wilson
No abstract text is available yet for this article.
September 15, 2023: Journal of Physiology
https://read.qxmd.com/read/37712567/from-strength-to-stamina-an-examination-of-subsequent-resistance-and-endurance-training-impact-on-mitochondrial-adaptations-and-endurance-performance
#14
JOURNAL ARTICLE
Nino Nikolovski, Trishawna A Fongwoo, Adam N Di Salvo
No abstract text is available yet for this article.
September 15, 2023: Journal of Physiology
https://read.qxmd.com/read/37712343/revisiting-the-assumption-of-a-rebreathing-induced-arterial-brain-co-2-equilibrium-half-a-century-later
#15
JOURNAL ARTICLE
Jerome A Dempsey
No abstract text is available yet for this article.
September 15, 2023: Journal of Physiology
https://read.qxmd.com/read/37707489/-evolutionary-poker-an-agent-based-model-of-interactome-emergence-and-epistasis-tested-against-lenski-s-long-term-e-coli-experiments
#16
REVIEW
Robert S Root-Bernstein, Morton I Bernstein
A simple agent-based model is presented that produces results matching the experimental data found by Lenski's group for ≤50,000 generations of Escherichia coli bacteria under continuous selective pressure. Although various mathematical models have been devised previously to model the Lenski data, the present model has advantages in terms of overall simplicity and conceptual accessibility. The model also clearly illustrates a number of features of the evolutionary process that are otherwise not obvious, such as the roles of epistasis and historical contingency in adaptation and why evolution is time irreversible ('Dollo's law')...
September 14, 2023: Journal of Physiology
https://read.qxmd.com/read/37702572/astrocytes-in-functional-recovery-following-central-nervous-system-injuries
#17
JOURNAL ARTICLE
Qasim M Alhadidi, Ghaith A Bahader, Oiva Arvola, Philip Kitchen, Zahoor A Shah, Mootaz M Salman
Astrocytes are increasingly recognised as partaking in complex homeostatic mechanisms critical for regulating neuronal plasticity following central nervous system (CNS) insults. Ischaemic stroke and traumatic brain injury are associated with high rates of disability and mortality. Depending on the context and type of injury, reactive astrocytes respond with diverse morphological, proliferative and functional changes collectively known as astrogliosis, which results in both pathogenic and protective effects...
September 13, 2023: Journal of Physiology
https://read.qxmd.com/read/37698923/understanding-the-hypothalamic-brainstem-bridge-in-the-hypoxia-puzzle
#18
JOURNAL ARTICLE
Daniel B Zoccal
No abstract text is available yet for this article.
September 12, 2023: Journal of Physiology
https://read.qxmd.com/read/37698494/skeletal-muscle-mitochondria-in-strength-athletes-meeting-energy-needs-with-mitochondrial-morphological-changes
#19
JOURNAL ARTICLE
Alyse L Lodigiani, Joseph C Morrison
No abstract text is available yet for this article.
September 12, 2023: Journal of Physiology
https://read.qxmd.com/read/37698303/the-exercise-pressor-reflex-a-pressure-raising-mechanism-with-a-limited-role-in-regulating-leg-perfusion-during-locomotion-in-young-healthy-men
#20
JOURNAL ARTICLE
Taylor S Thurston, Joshua C Weavil, Vincent P Georgescu, Hsuan-Yu Wan, Nathaniel M Birgenheier, Candice K Morrissey, Jacob E Jessop, Markus Amann
We investigated the role of the exercise pressor reflex (EPR) in regulating the haemodynamic response to locomotor exercise. Eight healthy participants (23 ± 3 years, <mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"> <mml:semantics> <mml:msub><mml:mover><mml:mi>V</mml:mi> <mml:mo>̇</mml:mo></mml:mover> <mml:mrow><mml:msub><mml:mi>O</mml:mi> <mml:mn>2</mml:mn></mml:msub> <mml:mi>max</mml:mi></mml:mrow> </mml:msub> <mml:annotation>${\dot V_{{{\mathrm{O}}_{\mathrm{2}}}{\mathrm{max}}}}$</mml:annotation></mml:semantics> </mml:math> : 49 ± 6 ml/kg/min) performed constant-load cycling exercise (∼36/43/52/98% <mml:math xmlns:mml="https://www...
September 12, 2023: Journal of Physiology
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