noradrenaline

Also nor·a·dren·a·lin

[nawr-uh-dren-l-in, -een]

noun

1. norepinephrine.

noradrenaline

/ ˌnɔːrəˈdrɛnəlɪn, -ˌliːn, -lIn /

noun

1. US name: norepinephrine. a hormone secreted by the adrenal medulla, increasing blood pressure and heart rate, and by the endings of sympathetic nerves, when it acts as a neurotransmitter both centrally and peripherally. Formula: C 8 H 11 NO 3

noradrenaline

1. See norepinephrine

Word History and Origins

Origin of noradrenaline¹

First recorded in 1930–35; nor- + adrenaline

Example Sentences

Propranolol is a medication that blocks the adrenergic pathway -- a network of neural and hormonal signals that release neurotransmitters like adrenaline and noradrenaline -- and was used to study this pathway's role in NK cell activity.

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The neurochemicals involved in this process are different than those mediating habit formation and include a chemical messenger called noradrenaline and internally produced opioids such as endorphins.

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This dip in blood sugar sparks the release of adrenaline and its cousin noradrenaline.

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Additionally, quantitative protein analysis confirmed that the levels of inflammatory cytokines TNF-α and IL-6 were significantly decreased and the levels of neurotransmitters dopamine, noradrenaline, and serotonin were significantly increased in the hippocampus.

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They found that the sympathetic nerves were producing noradrenaline, which was binding to killer T cells using a receptor called ADRB1.

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