The effects of Phα1β, a spider toxin, calcium channel blocker, in a mouse fibromyalgia model.

Toxicon

Programa de Pós Graduação Biomedicina e Medicina, Instituto de Ensino e Pesquisa da Santa Casa, Belo Horizonte, MG, Brazil; Programa de Pós Graduação em Farmacologia Bioquimica e Molecular, Faculdade Medicina UFMG, Belo Horizonte, MG, Brazil. Electronic address:

Published: April 2014

This study investigated the effects of Phα1β, pregabalin and diclofenac using an animal model of fibromyalgia (FM). Repeated administration of reserpine (0.25 mg/kg sc) once daily for three consecutive days significantly decreased thermal hyperalgesia, mechanical allodynia, and dopamine and serotonin content in the brain on the 4th day. Phα1β and pregabalin treatment completely reverted the mechanical allodynia and thermal hyperalgesia induced by reserpine treatment on the 4th day, but diclofenac was ineffective. Reserpine treatment significantly increased the immobility time in the forced swim test, which is indicative of depression in the animals. Phα1β, but not pregabalin, reduced the immobility time (56%), suggesting that Phα1β may control persistent pathological pain in FM.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.toxicon.2014.01.015DOI Listing

Publication Analysis

Top Keywords

phα1β pregabalin
12
effects phα1β
8
thermal hyperalgesia
8
mechanical allodynia
8
4th day
8
reserpine treatment
8
immobility time
8
phα1β spider
4
spider toxin
4
toxin calcium
4

Similar Publications

: Myoclonus is already associated with a wide variety of drugs and systemic conditions. As new components are discovered, more drugs are suspected of causing this disabling abnormal involuntary movement. This systematic review aims to assess the medications associated with drug-induced myoclonus (DIM).

View Article and Find Full Text PDF

CAPTRANE evaluated the efficacy and tolerability of high-concentration capsaicin patch (HCCP) vs. oral pregabalin for the treatment of postsurgical neuropathic pain (PSNP) following breast cancer surgery. The study was designed with the aim of demonstrating noninferiority of one HCCP against daily pregabalin.

View Article and Find Full Text PDF

Introduction: Neuropathic pain is a prevalent and burdensome condition, and both pregabalin and gabapentin are widely used for its treatment. However, there is a lack of clarity regarding their comparative efficacy and safety. This meta-analysis aims to evaluate and compare the effectiveness and safety of pregabalin vs.

View Article and Find Full Text PDF

Purpose: Postherpetic neuralgia (PHN) is a type of refractory neuropathic pain that causes significant suffering, disability, economic loss, and medical burden. In this study, we aim to evaluate the efficacy and safety of interferon (IFN)-α1b injection into the intervertebral foramen of patients with PHN.

Patients And Methods: This is a study protocol for a randomized, double-blind placebo-controlled multicenter clinical trial.

View Article and Find Full Text PDF

Postherpetic neuralgia (PHN) is a common chronic pain disease that persists after the rash (clusters of clear blisters on the surface of the skin) has healed, adversely affecting the quality of life of affected patients. Gabapentin (GPT) and pregabalin (PGB) are two commonly used drugs for the treatment of PHN, but there have been broad concerns regarding their efficacy and safety. Thus, this retrospective cohort study was conducted to investigate the effectiveness and safety of GPT versus PGB in the treatment of PHN.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!