Results 41 to 50 of about 674 (175)

Evidence that 5‐HT2A receptor signalling efficacy and not biased agonism differentiates serotonergic psychedelic from non‐psychedelic drugs

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 14, Page 4058-4071, July 2026.
Background and Purpose Serotonergic psychedelic drugs are under investigation as therapies for various psychiatric disorders, including major depression. Although serotonergic psychedelic drugs are 5‐HT2A receptor agonists, some such agonists are not psychedelic, potentially due to differences in 5‐HT2A receptor ligand bias or signalling efficacy. Here,
Aurelija Ippolito   +6 more
wiley   +1 more source

Ergot alkaloids and summary of biosynthesis pathway.

open access: yes, 2013
(A) Ergoline alkaloid biosynthesis pathways in the Clavicipitaceae. Arrows indicate one or more steps catalyzed by products of genes indicated. Arrows and genes in blue indicate steps in synthesis of the first fully cyclized intermediate (skeleton ...
Jennifer L. Wiseman (383659)   +54 more
core   +1 more source

Oxygen Supplementation Improves Oxygen Uptake Kinetics and Exercise Performance in PAH and CTEPH Patients

open access: yesComprehensive Physiology, Volume 16, Issue 3, June 2026.
In patients with pulmonary vascular diseases (PAH and CTEPH), supplemental oxygen (FiO2 0.3), compared to room air (FiO2 0.21) improved peak exercise capacity (peak V̇O2), peak sustainable exercise (V̇O2 at GET), and V̇O2 kinetics and the onset of exercise.
Shir Kadosh   +6 more
wiley   +1 more source

Predictors of Exercise Performance in Type 1 Diabetes: The Role of Hypoglycaemia Fear, Glycaemic Control, and Vascular Health: A Retrospective Cross‐Sectional Study

open access: yesDiabetes, Obesity and Metabolism, Volume 28, Issue 6, Page 5229-5239, June 2026.
ABSTRACT Aim Cardiorespiratory fitness is often impaired in individuals with type 1 diabetes. While physiological determinants have been studied, psychological barriers such as fear of hypoglycaemia remain underexplored. We hypothesised that glycaemic factors including HbA1c, diabetes duration, the presence of microvascular complications, and fear of ...
Arne Kooistra   +6 more
wiley   +1 more source

The total syntheses of ring -A substituted ergolines

open access: yes, 1998
Three types of ergolines, having a substituent in ring A were designed and their total syntheses were attempted. N-substituted 12-methoxyergolines were synthesized as potential serotonergic agents to test the hypothesis of bioisosterism between the C8 ...
Lee, Sunkyung
core  

Does Aerobic Capacity Protect Against Stress? Insights From Two Stress‐Induction Paradigms

open access: yesPsychophysiology, Volume 63, Issue 6, June 2026.
ABSTRACT Prior evidence suggests that individuals with higher fitness exhibit attenuated endocrine and autonomic responses to acute psychological and physical stressors. However, it remains unclear whether this stress‐buffering effect depends on the type of stressor.
Peter Raidl   +5 more
wiley   +1 more source

Derivatives as 5HT1A receptor ligands-past and present.

open access: yes, 2005
A review. Serotonin is a neuromediator, well-know for its implication in mood regulation, anxiety, depression and, insomnia as well as in normal human function such as sleep, sexual activity and appetite. In this way, serotonin (5-hydroxytryptamine, 5-HT)
SANTAGADA, VINCENZO   +3 more
core   +1 more source

Assessing the exercise‐related kinetics of circulating cell‐free DNA, circulating tumour DNA, DNase I activity and cytokines in patients with solid tumours: A pilot study

open access: yesExperimental Physiology, Volume 111, Issue 6, Page 2963-2974, 1 June 2026.
Abstract Circulating cell‐free DNA (cfDNA), circulating tumour DNA (ctDNA) and inflammatory cytokines have prognostic and predictive value in oncology. However, the effects of acute exercise on cfDNA levels are unknown. Here, we explore the kinetics of cfDNA, ctDNA and cytokines upon an incremental exercise test in a pilot cohort of cancer patients ...
Elmo W. I. Neuberger   +10 more
wiley   +1 more source

The acute respiratory response to blood‐flow restriction resistance exercise in healthy adults: A randomized crossover trial

open access: yesPhysiological Reports, Volume 14, Issue 11, June 2026.
LL‐BFR resistance exercise offers a promising alternative to traditional high‐load resistance training by reducing respiratory demand and perceived breathing effort, making it particularly beneficial for individuals with compromised respiratory function.
Manuel Kuhn   +10 more
wiley   +1 more source

Structural Features for Functional Selectivity at Serotonin Receptors

open access: yes, 2013
Drugs active at G protein-coupled receptors (GPCRs) can differentially modulate either canonical or non-canonical signaling pathways via a phenomenon known as functional selectivity or biased signaling.
Han, G. W.   +14 more
core   +1 more source

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