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Comp Biochem Physiol A Mol Integr Physiol. 2005 Oct;142(2):241-8. Epub 2005 Jun 23.

Nitric oxide in marine invertebrates: a comparative perspective.

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Stazione Zoologica A. Dohrn, Villa comunale 80121 Napoli, Italy.


Since the discovery of the biological effects of nitric oxide (NO) more than two decades ago, NO has been identified as an important physiological modulator and a messenger molecule in mammals. Parallel to these studies, evidence that has accumulated in recent years has revealed that the NO signalling pathway is spread throughout the entire phylogenetic scale, being increasingly found in lower organisms, ranging from Chordata to Mollusca. The present review attempts to provide a survey of current knowledge of the genesis and possible roles of NO and the related signalling pathway in marine invertebrates, with special emphasis on Sepia, a choice dictated by the increasing appreciation of cephalopods as most valuable model systems for studies of NO biology and the present expectation for new exciting insights into as yet little explored segments of NO biology.

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