In birds, the melatonin synthesis pathway is not mediated via the sympathetic nervous system nor regulated by activation of β-adrenergic ... manipulated in experiments requiring use of low currents in ...

Stress activates the hypothalamic-pituitary-adrenal axis and sympathetic nervous system (SNS), which ... from the adrenal gland and sympathetic postganglionic neurons. Most immune cells express ...

Motility of a particular gut segment depends substantially on its extrinsic and intrinsic innervation. The extrinsic innervation is provided by preganglionic parasympathetic nerves and postganglionic ...

The involuntary part of the PNS includes the sympathetic, parasympathetic, and enteric nervous systems. The sympathetic, parasympathetic, and enteric nervous system work together to balance out ...

Burn, J. H., and Rand, M. J., Nature, 184, 163 (1959).

The nerve pathway was 19 times out of 20 in the subpiriformis canal. In all cases the pathway was identical, with an oblique and vertical portion running down through the ischio-trochanteric channel.

Negative feedback pathways, depicted by dashed lines ... The SA-axis, comprised of afferent preganglionic sympathetic nervous system (SNS) fibers, is shown in blue. Green squares represent ...

Our studies provide evidence that isoproterenol enhances the effect of dexamethasone and that the enhanced effect of isoproterenol is mediated via the β 2-adrenergic receptor and the cAMP-dependent ...

But taking small steps forward in spite of such feelings creates a pathway out of the problem ... alarm of danger is mediated in part by the sympathetic nervous system pitched into high gear ...

1Department of Medicine, Columbia Center for Human Development, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York. 2Herbert Irving Comprehensive ...

Their latest study ( DOI: 10.1038/s41368-024-00336-6), published on January 7, 2025, in the International Journal of Oral Science, reveals the pivotal role of sympathetic nerves in modulating ...