Nitric oxide (NO) is involved in many physiological processes and several lines of evidence
have indicated that NO plays a complex and diverse role in the modulation of pain. Nitric …

This paper is the 28th consecutive installment of the annual review of research concerning
the endogenous opioid system, now spanning over a quarter-century of research. It …

The present study examined the antinociceptive effect of the ethanolic extract from Melissa
officinalis L. and of the rosmarinic acid in chemical behavioral models of nociception and …

Nitric oxide (NO) plays pivotal roles in controlling physiological functions, participates in
pathophysiological intervention, and is involved in mechanisms underlying beneficial or …

The present study was carried out to investigate on the possible involvement of l‐
arginine/nitric oxide/cyclic guanosine monophosphate (l‐arginine/NO/cGMP) pathway in the …

Previous studies have shown that nitrous oxide (N2O)-induced antinociception is sensitive
to antagonism by blockade of opioid receptors and also by inhibition of nitric oxide (NO) …

In this study, we compare the biological effects, Fos expression and cardiovascular
responses induced in the rat, of different nitric oxide modulators (nitroglycerin, sodium …

Experiments were designed to elucidate the involvement of nitric oxide (NO) in the
antihyperalgesic effect induced by the activation of peripheral μ-opioid receptors on …

Covering: July 2001 to June 2002. Previous review: Nat. Prod. Rep., 2002, 19, 332 This
review covers β-phenylethylamines and isoquinoline alkaloids and compounds derived from …

Previous studies have implicated nitric oxide (NO) in the antinociceptive response to the
anesthetic gas nitrous oxide (N2O). The present study was conducted to confirm this NO …