Results 31 to 40 of about 8,969 (140)

Sex‐dependent effects of a high‐fat diet‐induced obesity model on cerebrovascular health and brain metabolism

open access: yesExperimental Physiology, EarlyView.
Abstract Mid‐life obesity is a major risk factor for neurodegenerative diseases, with mitochondrial and cerebrovascular dysfunction considered key mediators. Lysine acetylation is a reversible post‐translational modification that regulates several mitochondrial metabolic and biochemical processes.
Nicole N. Eminhizer   +11 more
wiley   +1 more source

Mitochondrial Ca2+ uniporter haploinsufficiency leads to sexually dimorphic redox imbalance and metabolic remodelling in the mouse brain

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The genetic inactivation of one Mcu allele leads to sex‐specific changes in neuronal function in adult mice, that is, the firing of action potentials and the relationship between cytosolic and mitochondrial Ca2+ levels. The ability to produce NAD(P)H by stimulated neural tissue is largely preserved in male mice but delayed in ...
Jenna Gray   +16 more
wiley   +1 more source

Prediabetic cardiomyopathy is attenuated by hypothalamic PVN oxytocin neuron activation

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A long‐term high‐fat, high‐fructose diet induces prediabetes with insulin resistance, hyperinsulinaemia, elevated triglycerides and metabolic‐associated steatotic liver disease (MASLD) in male rats. Animals developed prediabetic cardiomyopathy characterized by diastolic dysfunction, interstitial fibrosis and tachycardia ...
Anna Nilsson   +7 more
wiley   +1 more source

Δ9 Tetrahydrocannabinol and cannabis extracts differentially improve adipoinsular dysfunction in diet‐induced obesity

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend THC and extract administered to diet‐induced obese mice reduced body weight and fat storage. Extract, but not THC, improved glucose clearance by a mechanism that may include restoring adipoinsular function. Abstract Diet‐induced obesity (DIO) is associated with dysregulated adipoinsular axis and endocannabinoid system (eCBS ...
Bryant Avalos   +7 more
wiley   +1 more source

Evaluation of a Targeted LC–MS/MS Assay for Clinical Quantification of Urinary Organic Acids

open access: yesJournal of Mass Spectrometry, Volume 61, Issue 8, August 2026.
ABSTRACT Gas chromatography–mass spectrometry (GC–MS) is the reference method for urine organic acid analysis but requires complex sample preparation and derivatization, limiting routine clinical use. We developed and validated a targeted Liquid chromatography–tandem mass spectrometry (LC–MS/MS) method for quantifying urinary organic acids relevant to ...
Earnest J. P. Daniel   +3 more
wiley   +1 more source

SIRT Family: Biological Functions and Therapeutic Targets

open access: yesMedComm, Volume 7, Issue 8, August 2026.
SIRT1–SIRT7 networks from transgenic mice to human‑relevant therapeutic targets. SIRT1–SIRT7 form an isoform‑, organ‑, and disease‑specific regulatory network. Transgenic Sirt1–7 mouse models define central regulatory SIRTs (SIRT1, SIRT3, SIRT6), context‑dependent modifiers (SIRT2, SIRT4, SIRT5, SIRT7), and their key mechanisms and target organs. These
Jia‐Yi Wang   +9 more
wiley   +1 more source

DNA‐Enzyme Hybrid Nanostructures: Functional Materials to Modulate Enzymatic Activity

open access: yesSmall, Volume 22, Issue 43, 3 August 2026.
DNA–enzyme hybrid nanostructures enable precise spatial and stoichiometric control over enzyme organization, offering a powerful platform to modulate catalytic activity. This review critically evaluates key mechanistic hypotheses, including proximity effects, microenvironment changes, confinement, and stabilization, as well as highlighting ...
Manar Elnaggar, Amelie Heuer‐Jungemann
wiley   +1 more source

Putative Mechanisms for Initial Reaction of Anaerobic Benzene Degradation Presumably Involving a Flavoprotein

open access: yesEnvironmental Microbiology, Volume 28, Issue 8, August 2026.
Anaerobic biodegradation of benzene by sulphate‐reducing strain BzS1 was studied by combining genomics, differential proteomics and targeted metabolite analyses. Strain BzS1 has an exceptionally streamlined metabolism. A highly abundant heterotrimeric flavoprotein may add benzene to either enolpyruvate or glutaconyl‐CoA followed by channelling into the
Florin Musat   +11 more
wiley   +1 more source

Insights Into Divergent Mechanisms of Pyrite Oxidation by Indigenous Fungi From Mine Tailings

open access: yesMicrobial Biotechnology, Volume 19, Issue 8, August 2026.
To elucidate the mechanisms of fungal pyrite oxidation, a large‐scale isolation of indigenous pyrite‐oxidizing fungi from mine tailings was conducted, and three focal strains were subjected to integrated multi‐omics and molecular analysis in fungus‐pyrite co‐culture systems, revealing their divergent oxidative strategies.
Yu‐xiang Li   +10 more
wiley   +1 more source

The malate–aspartate shuttle supports thermogenic lipid mobilization in brown adipocytes

open access: yesThe FEBS Journal, Volume 293, Issue 15, Page 4489-4507, August 2026.
Brown fat cells burn lipids within their mitochondria to generate heat. This process involves two energy “shuttles,” one of which is naturally blocked during heat production. We found that the second shuttle (MASh) is not required to generate heat. However, when MASh is disabled, the fatty acids meant for fuel are instead converted back into stored fat.
Michaela Veliova   +12 more
wiley   +1 more source

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