Results 41 to 50 of about 4,572 (161)

Inhibition of kynurenine 3‐monooxygenase (KMO) reduces fentanyl and sucrose intake and relapse‐like behaviour in rats

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Opioid use disorder, particularly involving fentanyl, poses major challenges due to high relapse rates and limited effectiveness of pharmacotherapies. The kynurenine pathway has emerged as a target for addiction treatment through its modulation of glutamatergic and dopaminergic neurotransmission.
Carlos Núñez‐de la Calle   +12 more
wiley   +1 more source

Biofluid Biomarkers of Cognitive Functioning in Bipolar Disorder: A Systematic Review by the Targeting Cognition and Older‐Age Bipolar Disorder ISBD Task Forces

open access: yesBipolar Disorders, Volume 28, Issue 5, August 2026.
ABSTRACT Background Cognitive impairment is common in bipolar disorder (BD), but the underlying pathophysiology remains unclear. This systematic review aimed to (1) summarize all literature describing relationships of biofluid biomarkers and cognition in BD and (2) identify which biofluid biomarkers correlate most consistently with cognition in BD ...
Alexandra J. M. Beunders   +21 more
wiley   +1 more source

Steroidogenic compensation and lipid deficiency with enhanced NAD+ salvage in small‐for‐gestational‐age placenta

open access: yesThe FEBS Journal, Volume 293, Issue 15, Page 4554-4577, August 2026.
Fetal growth restriction is associated with placental metabolic adaptations. In small‐for‐gestational‐age placenta (SGA), cholesterol receptors and steroidogenic enzymes are upregulated, enhancing steroidogenesis. NAD salvage pathway is also increased to support NADP+/NADPH requirements.
Serena Xodo   +4 more
wiley   +1 more source

Human IDO2 exhibits unique binding affinities distinct to those of human IDO1

open access: yesThe FEBS Journal, Volume 293, Issue 15, Page 4533-4553, August 2026.
Although indoleamine 2,3‐dioxygenase 2 (IDO2) is highly homologous to IDO1, it displays markedly lower catalytic activity. We found that IDO2 binds L‐tryptophan (L‐Trp) in a flipped orientation stabilized by the IDO2‐specific residue His143. Replacement of His143 with the IDO1‐equivalent tyrosine restored an IDO1‐like binding mode and increased ...
Shunsuke Nogi   +8 more
wiley   +1 more source

From Infection to Anxiety: A Sequential Model Linking Latent Toxoplasmosis to Psychological Distress via Health and Stress

open access: yesScandinavian Journal of Psychology, Volume 67, Issue 4, Page 1026-1043, August 2026.
ABSTRACT Identifying the drivers of chronic stress is crucial for understanding its impact on mental health. Latent toxoplasmosis, a widespread parasitic infection, has been linked to various psychological changes. The Stress‐Coping Hypothesis proposes that at least some of these changes are consequences of chronic stress arising from the infection's ...
Jaroslav Flegr   +2 more
wiley   +1 more source

Amino acid homeostasis in the kidney: Physiological roles and pathological dysregulation

open access: yesPhysiological Reports, Volume 14, Issue 15, August 2026.
Abstract Amino acids are fundamental to life as protein building blocks and key regulators of metabolism and signaling. The kidney plays a critical, yet underappreciated, role in amino acid homeostasis through three interconnected pillars: selective glomerular filtration, efficient tubular reabsorption, and metabolic processing, which includes de novo ...
Shuo Liu   +3 more
wiley   +1 more source

A pilot study of maternal vitamin D status and its association with breast milk and infant gut metabolites

open access: yesPhysiological Reports
Human milk contains multiple bioactive components, many of which are influenced by the mother's nutritional status. To identify the impact of maternal vitamin D status on neuroactive compounds, we conducted a post hoc analysis of breast milk and matched ...
Alyssa S. Gutierrez   +10 more
doaj   +1 more source

Nicotinamide Reverses the Warburg Effect in CHO Cell Culture

open access: yesBiotechnology and Bioengineering, Volume 123, Issue 7, Page 1902-1915, July 2026.
ABSTRACT The Warburg effect, the preferential conversion of glucose‐derived pyruvat to lactate despite available oxygen, is a key feature of Chinese hamster ovary (CHO) cell culture. Lactate accumulation in recombinant protein‐producing cell culture is an inefficient usage of glucose, as well as being deleterious to cells.
James Morrissey   +7 more
wiley   +1 more source

Utilizing transcriptomics and metabolomics to unravel key genes and metabolites of maize seedlings in response to drought stress

open access: yesBMC Plant Biology
Background Drought stress can substantially restrict maize growth and productivity, and global warming and an increasing frequency of extreme weather events are likely to result in more yield losses in the future.
Yipu Li   +10 more
doaj   +1 more source

The Effects of Transcranial Magnetic Stimulation on Tryptophan Metabolism and Depressive‐Like Behavior in Mice

open access: yesBrain and Behavior, Volume 16, Issue 7, July 2026.
Repetitive transcranial magnetic stimulation (rTMS) ameliorates chronic unpredictable mild stress (CUMS)‐induced depressive‐like behaviors in mice by modulating key tryptophan metabolism pathways, as evidenced by the restoration of serotonin levels and reduction of neuroactive metabolites.
Gao Yuan   +8 more
wiley   +1 more source

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