vasoactive

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vasoactive

 [vas″o-ak´tiv]
exerting an effect upon the caliber of blood vessels.
vasoactive intestinal polypeptide (VIP) a peptide hormone that, in addition to its vasoactive properties, stimulates intestinal secretion of water and electrolytes, inhibits gastric secretion, promotes glycogenesis, causes hyperglycemia, and stimulates production of pancreatic juice. See also vipoma.

va·so·ac·tive

(vā'sō-ak'tiv, vas-ō-),
Influencing the tone and caliber of blood vessels.

vasoactive

/vaso·ac·tive/ (va″zo-) (vas″o-ak´tiv) exerting an effect upon the caliber of blood vessels.

vasoactive

(vā′zō-ăk′tĭv)
adj.
Causing constriction or dilation of blood vessels.

va′so·ac·tiv′i·ty n.

vasoactive

[vā′zō·ak′tiv]
Etymology: L, vas + activus, active
(of a drug) tending to cause vasodilation or vasoconstriction.

va·so·ac·tive

(vā'sō-ak'tiv)
Influencing the tone and caliber of blood vessels.

vasoactive

Affecting blood vessels.

vasoactive

influencing blood vessel tone/caliber

vasoactive

exerting an effect on the caliber of blood vessels.

vasoactive intestinal peptide (VIP), vasoactive intestinal polypeptide
a peptide hormone that, in addition to its vasoactive properties, stimulates intestinal secretion of water and electrolytes, inhibits gastric secretion, promotes glycogenesis, causes hyperglycemia and stimulates secretion of pancreatic juice.
vasoactive substances
substances which cause constriction of blood vessels; substances which actively dilate vessels, rather than relax an existing vasoconstriction, should be included. See vasoconstrictor agents and vasodilator agents.
vasoactive substances, endothelium-derived
includes nitrous oxide, prostacyclin and other prostanoids, unnamed relaxing or constricting factors released as a result of a tissue insult, e.g. hypoxia or excessive stretch.
References in periodicals archive ?
which has high release threshold) and/or enable/disable nervous system that can influence Q and PVR, causing SBP and DBP to decrease; and (b) the longer physical exercise duration was able to elicit an increase in other vasoactive substances and/or enable/disable nervous system, thus leading to a simultaneous biological activity of blood pressure controls.
At the vascular level, the endothelium presents unique responses to the forces of blood flow: the pulsating flow and the friction stress are physiological stimulus responsible, in part, for the basal liberation of vasoactive substances such as Nitric Oxide (NO).
The trigeminovascular theory is one of the most persuasive theories in the pathogenesis of migraine, excessive internal and external stimulation can lead to vascular dilatation or vasomotor dysfunction, and the noxious stimulation accelerates the peripheral branch of trigeminal nerve releasing vasoactive substances and neurotransmitters, such as calcitonin gene-related peptide, P substance and 5-hydroxytryptamine, all of these will cause neurogenic inflammation, further lead to headache (Buzzi 1992; Welch et al.
Vasculartone, cellular growth, coagulation and the modulation of the activity of various blood components such as platelets and monocytes by secreting a variety of vasoactive substances are maintained by the endothelium.
Ginkgo appears to contain vasoactive substances affecting prostaglandins, which have been reported to ease symptoms in many tinnitus patients.
Eicosanoids are vasoactive substances produced locally ha the kidney by the glomerular and vascular endothelium, nephrons, and interstitial cells.
Peter Cohn of the State University of New York at Stony Brook agrees: "Preliminary data have shown enhanced production of such factors in addition to other vasoactive substances that dilate pre-existing blood vessels.
The 5- fluorouracil has endothelial toxicity resulting in thrombogenic effect and release of vasoactive substances (1, 2).
We report a case of intraoperative non-cardiogenic pulmonary oedema, most likely caused by release of vasoactive substances from a carcinoid tumour.
HPAEC were isolated from normal human pulmonary arteries and have been shown to respond to a variety of vasoactive substances (Ryan et al.
The neo-vessel formed was found to dilate and constrict in response to vasoactive substances.
The paper, "Remodeling of an acellular collagen graft into a physiologically responsive neovessel", shows that the Company's non-living vascular graft is converted in the body into a living, cellularized vessel able to constrict and dilate in response to vasoactive substances.

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