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Antinociceptive effect of botulinum toxin type A on experimental abdominal pain (CROSBI ID 211621)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Drinovac, VIšnja ; Bach-Rojecky, Lidija ; Babić, Ana ; Lacković, Zdravko Antinociceptive effect of botulinum toxin type A on experimental abdominal pain // European journal of pharmacology, 745 (2014), 190-195. doi: 10.1016/j.ejphar.2014.10.038

Podaci o odgovornosti

Drinovac, VIšnja ; Bach-Rojecky, Lidija ; Babić, Ana ; Lacković, Zdravko

engleski

Antinociceptive effect of botulinum toxin type A on experimental abdominal pain

Visceral pain, especially in the abdominal region, represents one of the most common types of pain. Its chronic form is usually very hard to treat by conventional analgesic agents and adjuvants. We investigated the antinociceptive effect of botulinum toxin type A (BTX-A) in male Wistar rats in two models of visceral pain: peritonitis induced by intraperitoneal injection of 1% acetic acid and colitis induced by intracolonic instillation of 0.1% capsaicin. Pain was measured as the number of abdominal writhes. Additionally, referred mechanical sensitivity in the ventral abdominal area was evaluated by von Frey test and the extent of spinal c-Fos expression was immunohistochemically examined. BTX-A significantly reduced the number of abdominal writhes in both models of visceral pain after intrathecal application in a dose of 2 U/kg. In the experimental colitis model, BTX-A (2 U/kg) reduced both referred mechanical allodynia and c-Fos expression in the dorsal horn of the spinal cord (S2/S3 segments). In contrast to intrathecal administration, BTX-A (2 U/kg) administered into the cisterna magna had no effect on pain suggesting that the primary site of its action is a spinal cord.

Botulinum toxin type A ; visceral pain ; abdominal pain ; capsaicin ; acetic acid ; rat

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Podaci o izdanju

745

2014.

190-195

objavljeno

0014-2999

1879-0712

10.1016/j.ejphar.2014.10.038

Povezanost rada

Temeljne medicinske znanosti

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