Estudo sobre a antinocicepção promovida pela ingestão de curcumina nas doses de 20, 40 e 80 mg/Kg
Estudo sobre a antinocicepção promovida pela ingestão de curcumina nas doses de 20, 40 e 80 mg/Kg
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DOI: 10.22533/at.ed.90623270916
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Abstract: Curcuma longa, popularly known as saffron of the earth, is a herbaceous plant, originally from Asia, from which curcumin is extracted, an active principle that has a high therapeutic capacity. Clinical trials have demonstrated the analgesic effect of curcuminoids in a variety of conditions, such as osteoarthritis and active rheumatoid arthritis. Other studies have proven attenuation of chronic post-surgical pain, cancer pain and visceral pain. Thus, the objective of this work was to investigate the potential antinociceptive effect of curcumin, when administered at doses of 20, 40 and 80 mg/Kg in animals. For that, 24 male Wistar rats, weighing between 200-300 grams, on free diet and fluid intake were used. The project complies with the Ethical Principles in Animal Experimentation, having been approved by the Committee on Ethics in the Use of Animals (CEUA)-UFMT - Protocol: No. 23108.020304/2021-23. For the experiment, the rats were separated into four groups (n=6) and subjected to baseline determination through the tail flick test, using an analgesimeter (Insight, Tail-Flick). Subsequently, curcumin was administered orally via gavage at doses of 20, 40 and 80 mg/Kg in each group and the vehicle in another. After pre-treatment with the substances, the nociceptive thresholds were measured at 15, 30, 40 and 60 minutes, providing the database for verifying the analgesic effect of curcumin through the two-way analysis of variance (Two- Way ANOVA) followed by the Bonferroni Post-hoc test. The results showed that curcumin ingestion caused a dose-dependent antinociceptive effect, as it increased the tail-flick latency differently for each administered dose. At a dose of 80 mg/Kg, there was an increase in the nociceptive threshold at all times when compared to the control group. The 40 mg/Kg dose showed an increase at 15, 30 and 60 minutes, while the 20 mg/Kg dose only generated antinociception 60 minutes after curcumin ingestion. The administration of the active principle of Curcuma longa, curcumin, has an antinociceptive effect, especially when administered at a dose of 80 mg/Kg. From this, we can consider that curcumin is a natural compound that acts to alleviate pain and has few adverse effects, making it a possible alternative for clinical use.
- Adrielly Sousa Guimarães
- Carolina Lima Lopes
- Matheus Fontes Moreira Conceição
- Elaine Dione Venega da Conceição
- RICARDO DE OLIVEIRA