Department of Physiological Sciences

A GPRC5B–Fyn signaling axis regulates VRAC activity by targeting LRRC8A

The mechanisms by which physiological signals gate the volume-regulated anion channel (VRAC) remain poorly understood. Here, we identify a GPRC5B–Fyn signaling axis that directly controls VRAC activation by targeting the essential subunit LRRC8A. We found that the orphan G protei...

An Intensified Training Period Reduces REM Sleep but this Decline Can Be Mitigated by Ketone Ester Supplementation

Introduction: We previously showed that a strenuous training day disrupts sleep efficiency and REM sleep, and that these disturbances can be counteracted by ketone monoester (R)-3-hydroxybutyl-(R)-3-hydroxybutyrate (KE) supplementation. However, the impact of prolonged intensifie...

From fascination to fear and disgust: cross-cultural assessment of emotional and aesthetic responses to snake imagery

The primate visual system is thought to have evolved under selective pressures favouring rapid detection of snakes, ancestral predators that shaped perceptual and attentional mechanisms. Yet, the transition from visual detection to subjective fear remains poorly understood and ma...

Deletion of protein tyrosine phosphatase 1B in hepatocytes attenuates inflammation, steatosis, and fibrosis in a dietary mouse model of metabolic dysfunction-associated steatohepatitis

Abstract Background Metabolic dysfunction-associated steatohepatitis (MASH) is a leading cause of liver-related morbidity and mortality. The current interventions are limited, underscoring the need for novel mechanism-based therapies. Protein tyrosine phosphatase 1B (PTP1B) regul...

Cell Type‐Specific Extracellular Vesicles in Mouse Brain: Proteomic Signatures Highlight Astrocytic GlialCAM Network and GPCR Enrichment

Extracellular vesicles (EVs) mediate intercellular communication in the central nervous system (CNS) and are emerging as biomarkers of brain health and disease. However, the molecular composition of cell type-specific brain EVs, particularly astrocyte-derived EVs (ADEVs), remains...

Lipids in endothelial-to-mesenchymal transition

Purpose of review Endothelial-to-mesenchymal transition (EndMT) has been implicated in the development of cardiovascular disease, including atherosclerosis. EndMT is a complex continuum with multiple involved pathways, each with different pathophysiologic implications depending o...