Nitric oxide: biphasic dose responses.

E J Calabrese

doi:10.1080/20014091111776

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Nitric oxide: biphasic dose responses.

E J Calabrese

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Abstract

The capacity of nitric oxide (NO) to affect biphasic dose responses in pharmacological and toxicological systems was assessed. Numerous examples of such biphasic responses were documented, including osteoclast differentiation, various vascular responses, neutrophil migration, superoxide anion formation, exploratory behavior in rodents, vitamin D3 levels in macrophages, human sperm motility and mobility, myocardial contraction, and other functions. The quantitative features of the dose response indicated a maximum stimulatory response usually less than twofold greater than the controls. While the stimulatory range was variable, ranging from approximately 2.5 to 500-fold, the majority was < or = 10-fold. These findings indicate that biphasic dose-response relationships are common manifestations of the NO-induced effects.

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Animals Cardiovascular Physiological Phenomena Cell Differentiation Cell Movement Dose-Response Relationship, Drug Exploratory Behavior Homeostasis Humans Myocardial Contraction Neutrophils Nitric Oxide Osteoclasts Rats Sperm Motility Superoxides Journal Article Review

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E J Calabrese. 2001. Nitric oxide: biphasic dose responses.. https://doi.org/10.1080/20014091111776

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