Pharmacological modulation of nitric oxide release: new pharmacological perspectives, potential benefits and risks

Current Medicinal Chemistry
Roberto ScatenaBruno Giardina

Abstract

Nitric oxide is becoming an increasingly important signalling molecule implicated in a growing number of physiological and pathophysiological processes. Moreover, with the recent advances in nitric oxide biochemistry, many well known drugs have been shown to act totally or partially by modulating NO metabolism with varying therapeutic results. The classic organic nitrates have been shown to exhibit beneficial therapeutic but suffer from some well known pitfalls (tolerability induction, abrupt cephalea and hypotension). Similarly, sydnonimines, another well known class of NO donor drugs, have a characteristically low therapeutic index (i.e., cyanide toxicity). At present, pharmacological researchers are designing and synthesising various chemical compounds capable of modulating NO metabolism for therapeutic purposes that also possess an optimal therapeutic index. Specifically, various new classes of NO donors are under intense pharmacological investigation (such as S-nitrosothiols, diazeniumdiolates, furoxans, zeolites and so on), each characterised by a particular pharmacokinetic and pharmacodynamic profile. To known the pharmacological development of these new NO donor drugs could help to ameliorate the use of these molecules ...Continue Reading

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