Bjørn Olav Hald

Impaired dynamics of brain precapillary sphincters and first order capillaries explains reduced neurovascular functions in aging

This study identifies age-related impairments in brain microvascular dynamics, particularly in precapillary sphincters, leading to reduced neurovascular function in aging.

Nitric oxide, KATP channels and endothelin-1 modulate brain pericyte function, vascular tone and neurovascular coupling

The paper investigates how nitric oxide, endothelin-1, and KATP channels modulate brain pericyte function, vascular tone, and neurovascular coupling through distinct signaling pathways.

Intercellular Conduction Optimizes Arterial Network Function and Conserves Blood Flow Homeostasis during Cerebrovascular Challenges

The paper shows that intercellular electrical signaling through gap junctions coordinates vascular responses to maintain blood flow during cerebrovascular challenges.

Precapillary sphincters control cerebral blood flow

This study identifies precapillary sphincters as regulators of cerebral blood flow, showing their dilation and constriction in response to neural activity and ischemia.

Membrane Lipid-KIR2.x Channel Interactions Enable Hemodynamic Sensing in Cerebral Arteries

The paper investigates how membrane lipids modulate KIR channels in cerebral arteries to sense hemodynamic stimuli and regulate brain perfusion.