Neurohormone

(redirected from neurohormonal)
Also found in: Dictionary, Thesaurus, Medical.
Related to neurohormonal: neurohormonal system

neurohormone

[¦nu̇r·ō′hȯr‚mōn]
(neuroscience)
A hormone produced by nervous tissue.

Neurohormone

 

a physiologically active substance that is produced by special neurons—the neurosecretory cells.

Like a mediator substance (chemical transmitter), a neurohormone is released by nerve endings, but in contrast to the first, a neurohormone is secreted into the blood or tissue fluid. Such secretion into the body fluids is characteristic of hormones. Neurohormones, for example, vasopressin, oxytocin, and the adenohypophysiotropic hormones, have been discovered in many vertebrates and in many invertebrates, including mollusks, worms, and arthropods. Chemically, the majority of neurohormones are peptides; some are catecholamines. Biosynthesis of peptide neurohormones occurs in the endoplasmic reticulum of the cell body of the neuron, The peptides are packaged in the Golgi complex and are subsequently transported along the axon to the nerve endings. In the mammalian brain the neurosecretory cells of the hypothalamus are a source of neurohormones. Neurohormones regulate the activity of the cells of some endocrine glands and influence the cells of other organs.

REFERENCE

See references under .
References in periodicals archive ?
Compared to medications administered in the ED, the proportion of patients given daily neurohormonal antagonists only slightly increased during the follow-up periods [Table 5].
If left untreated, these changes worsen over time, exacerbated by additional myocardial injury from neurohormonal imbalance resulting from activation of the RAAS and the sympathetic nervous system, increased cytokine expression, immune and inflammatory changes, altered fibrinolysis and oxidative stress.
Several studies on myelination (Kinney, 1988, Parazzini, 2002, Deoni, 2012), Miller, 2012, and Welker, 2012) provide us with a scientific platform to determine the order of development of the neurohormonal circuits underlying basic emotions.
Elia, an independent scholar at Cambridge University, bridges genetics, physical and social anthropology, and psychology to interpret the findings of the "farm fox experiment" in Russia to reveal "a possible and replicable demonstration of the origin of beauty while inadvertently illuminating its ancient philosophical connection to goodness via a plausible neurohormonal pathway.
There's a natural cascade of neurohormonal activity that starts even before labor begins, occurs throughout the process, and continues after birth.
The goal for those with mild to moderate HF is to prevent or slow disease progression by interfering with the neurohormonal pathways that cause cardiac damage.
There is a potential interaction between the depressive symptoms, the neurohormonal effects of the depression itself, and the medication.
Slow-wave sleep has been suggested as a factor in learning and memory, as well as in a various physiological functions, including metabolism, diabetes, and neurohormonal systems affecting the sympathetic nervous system, that contributes to high blood pressure.
Este efecto se ha atribuido a multiples factores, entre ellos el aumento del calcio intracelular, del consumo miocardico de oxigeno, la taquicardia, la deplecion de fosfatos de alta energia, activacion neurohormonal y a la generacion de arritmias, entre otros.
Now neurohormonal studies have established yawning as a marker for D3 dopamine receptors and the behavioural and imaging studies have found its role as a non-verbal language and emotion (like empathy).
Neurohormonal theories of sexual orientation development hold that various patterns of feminization--defeminization and masculinization--unmasculinization of the brain direct attraction to specific physical characteristics which contributes to mate preferences and ultimately to sexual orientation (LeVay, 2011; Muscarella, 2002; Muscarella, Elias, & Szuchman, 2004).