Anna Paula Piovezan

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Endothelin-1 causes ET(A) receptor-mediated enhancement of capsaicin-induced nociception in mice. We have assessed if this hyperalgesic effect of endothelin-1 is also accompanied by other pro-inflammatory effects, namely nociception and oedema, and characterized the endothelin ET receptors involved. Intraplantar (i. pl.) hind-paw injection of endothelin-1(More)
The influence of endothelin-1 on nociception induced by capsaicin was assessed in the mouse hindpaw. Local endothelin-1 injection (1 to 20 pmol/paw) 30 min prior to ipsilateral injection of capsaicin (0.1 microg/paw) increased, in a graded fashion, the time spent licking the injected paw. Maximal hyperalgesia was obtained with 10 pmol/paw of endothelin-1(More)
1. The contribution of endogenous endothelins to nociceptive responses elicited by ovalbumin (OVA) in the hind-paw of mice sensitised to this antigen (50 microg OVA+5 mg Al(OH)(3), s.c., 14 days beforehand) was investigated. 2. Sensitised mice exhibited greater nocifensive responsiveness to intraplantar ( OVA (total licking time over first 30 min:(More)
This study investigated the involvement of the adenosinergic system in antiallodynia induced by exercise in an animal model of complex regional pain syndrome type I (CRPS-I). Furthermore, we analyzed the role of the opioid receptors on exercise-induced analgesia. Ischemia/reperfusion (IR) mice, nonexercised and exercised, received intraperitoneal injections(More)
The present study investigates the influence of endothelin (ET) related peptides (0.3-30 pmol/paw) on both phases of nociception and on edema induced by intraplantar injection of formalin (0.5% in 20 microL) in the mouse hind paw. The first phase of nociception (0-5 min after injection) was significantly potentiated by simultaneous injection of either ET-1(More)
ETHNOPHARMACOLOGICAL RELEVANCE Cedrus atlantica essential oil (CaEO) presents analgesic and anti-inflammatory sedative properties. However, it remains unknown whether CaEO alleviates acute postoperative pain. MATERIALS AND METHODS Here, we investigated the effect of CaEO on postoperative pain and its mechanisms related to the descending pain control in(More)
Water immersion is widely used in physiotherapy and might relieve pain, probably by activating several distinct somatosensory modalities, including tactile, pressure, and thermal sensations. However, the endogenous mechanisms behind this effect remain poorly understood. This study examined whether warm water immersion therapy (WWIT) produces an(More)
ETHNOPHARMACOLOGICAL RELEVANCE Casearia sylvestris Sw. is widely used in popular medicine to treat inflammatory conditions. AIM OF THE STUDY To investigate the anti-inflammatory and antioxidant properties of hydroalcoholic crude extract (HCE) taken from Casearia sylvestris Sw. (Salicaceae). METHODS AND RESULTS The effect of the HCE from this plant(More)
This study was designed to determine whether 3 weeks of gabapentin treatment is effective in alleviating neuropathic pain-like behavior in animal models of complex regional pain syndrome type-I and partial sciatic nerve ligation (PSNL). We investigated the contribution of adenosine subtypes to the antihyperalgesic effect of gabapentin by examining the(More)
ETHNOPHARMACOLOGICAL RELEVANCE Casearia sylvestris Sw. is widely used in popular medicine to treat conditions associated with pain. AIM OF THE STUDY The present study investigated the influence of hydroalcoholic crude extract of Casearia sylvestris (HCE-CS) and contribution of pro-resolving mediators on mechanical hyperalgesia in a mouse model of chronic(More)