The Ion Channel TRPA1 Is Required for Normal Mechanosensation and Is Modulated by Algesic Stimuli

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The ion channel TRPA1 is required for normal mechanosensation and is modulated by algesic stimuli.

BACKGROUND & AIMS The transient receptor potential (TRP) channel family includes transducers of mechanical and chemical stimuli for visceral sensory neurons. TRP ankyrin 1 (TRPA1) is implicated in inflammatory pain; it interacts with G-protein-coupled receptors, but little is known about its role in the gastrointestinal (GI) tract. Sensory information from the GI tract is conducted via 5 affere...

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The nociceptor ion channel TRPA1 is potentiated and inactivated by permeating calcium ions.

The transient receptor potential A1 (TRPA1) channel is the molecular target for environmental irritants and pungent chemicals, such as cinnamaldehyde and mustard oil. Extracellular Ca(2+) is a key regulator of TRPA1 activity, both potentiating and subsequently inactivating it. In this report, we provide evidence that the effect of extracellular Ca(2+) on these processes is indirect and can be e...

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Acid-sensing ion channel-1a is not required for normal hippocampal LTP and spatial memory.

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ژورنال

عنوان ژورنال: Gastroenterology

سال: 2009

ISSN: 0016-5085

DOI: 10.1053/j.gastro.2009.07.048