Original articlesComparative effect of Phoneutria nigriventer spider venom and capsaicin on the rat paw oedema
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Potamotrygon motoro stingray venom induces both neurogenic and inflammatory pain behavior in rodents
2018, ToxiconCitation Excerpt :ω-conotoxin MVIIC was purchased from Peninsula Laboratories International, USA. To investigate some of the possible pathways that PmV induces hyperalgesia, groups of rats were treated with: Guanethidine (depletor of peripheral sympathomimetic amines, 30 mg/kg, s.c., for 3 consecutive days before PmV injection) (Chacur et al., 2002), GR82334 (NK1 receptor antagonist, 1.4 μg/paw, i.pl., 15 min before PmV injection), GR94800 (NK2 receptor antagonist, 0.9 μg/paw, i.pl., 15 min before PmV injection) (Zanchet and Cury, 2003), capsazepine (vanilloid receptor antagonist), 30 μg/paw, i.pl., 15 min before PmV injection) (Costa et al., 2001), CGRP8-37 (CGRP receptor antagonist, 15 μg/paw, i.pl., 10 min before PmV injection) (Yu et al., 1998), verapamil (calcium channel type Cav1 blocker, 50 μg/paw, i.pl., 30 min before PmV injection), or ω-conotoxin MVIIC (selective calcium channel type Cav2.1 blocker, 20 μg/kg, i.p., 30 min before PmV injection) (Prado, 2001). Sterile saline was used as negative control for these pharmacological treatments and PmV injection.
Venomic and pharmacological activity of Acanthoscurria paulensis (Theraphosidae) spider venom
2013, ToxiconCitation Excerpt :In fact, 20 μg venom/paw was able to induce hind-paw edema after 10 min of administration. Phoneutria nigriventer (Costa et al., 2001; Zanchet and Cury, 2003) and Loxosceles gaucho (Barbaro et al., 2010) venoms and peptides isolated from Scaptocosa raptoria venom (Ferreira et al., 1998) also produced edema in rodents. These studies showed that pain and swelling caused by these spider venoms are related, as they involve the same molecular cascades.
Synthesis and pharmacological characterization of a novel nitric oxide-releasing diclofenac derivative containing a benzofuroxan moiety
2010, European Journal of Medicinal ChemistryCitation Excerpt :The results are expressed as the increase in paw volume (mL) calculated by subtracting the basal volume. The area under the time-course curve (AUC0–2h) was also calculated using the trapezoidal rule and the results expressed as total edema volume (mL h) by comparison with the vehicle rats [23]. The animals were orally treated with vehicle (1 mL of DMSO) or the anti-inflammatory compounds.
Role of sensory innervation in the rat pulmonary neutrophil recruitment induced by staphylococcal enterotoxins type A and B
2009, European Journal of PharmacologyInflammatory events induced by brown spider venom and its recombinant dermonecrotic toxin: A pharmacological investigation
2009, Comparative Biochemistry and Physiology - C Toxicology and PharmacologyMechanisms involved in the rat peritoneal leukocyte migration induced by a Kunitz-type inhibitor isolated from Dimorphandra mollis seeds
2009, ToxiconCitation Excerpt :The following drugs were used at the indicated doses and schedules of administration: (1) Dexamethasone (0.5 mg/kg) was administered s.c. 1 h before DMTI-II injection; (2) the selective cyclooxygenase-2 (COX-2) inhibitor celecoxib (3 mg/kg) was administered s.c. 1 h before DMTI-II administration (Filliatre et al., 2001); (3) the lypoxygenase inhibitor AA861 (0.2 mg/kg) was administered i.v. 15 min before DMTI-II injection (Filliatre et al., 2001); (4) platelet-activating factor (PAF) antagonist receptor PCA4248 (5 mg/kg) was administered i.v. 1 h before DMTI-II injection (Filliatre et al., 2001); (5) the tachykinin NK1 receptor antagonist ((S)1-{2-[3-(3,4-dichlorophenyl)-1-(3-isopropoxyphenylacetyl)piperidim-3-yl]ethyl}-4-phenyl-1-azibuabicyclo[2.2.2.] octane chloride) SR-140333 (100 μg/kg) was administered i.v. immediately before the intraperitoneal injection of DMTI-II (Costa et al., 2001); (6) the tachykinin NK2 receptor antagonist ((S)-N-methyl-N[4-(4-acetylamino-4-phenylpiperridino)-2-(3,4,-dichlorophenyl)butyl]benzamide) SR48968 (1 mg/kg) was administered immediately before DMTI-II injection (Inoue et al., 1997); (7) the non-selective nitric oxide (NO) synthesis inhibitor Nω-nitro-l-arginine methyl ester (l-NAME; 20 mg/kg) was administered i.v. immediately before DMTI-II injection (Franco-Penteado et al., 2001); (8) the inducible NO synthase inhibitor aminoguanidine (75 mg/kg) was administered i.v. immediately before DMTI-II injection (Franco-Penteado et al., 2001). The cellular migration was evaluated 16 h-post-DMTI-II administration.