30DEC

Libyan International Conference for Health Sciences

The First Libyan International Conference for Health Sciences (2024): Open University, Tripoli, Libya
Mediterranean Journal of Pharmacy and Pharmaceutical Sciences
https://ppj.org.ly/article/doi/10.5281/zenodo.13751022

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences

Original article

Ascorbic acid has an anxiolytic-like effect in the presence of flumazenil in rats

Suhera M. Aburawi, Jamal M. Saad, Reda A. Al-Tubuly, Ahmed F. Eldrogi

http://dx.doi.org/10.5281/zenodo.13751022 Mediterr J Pharm Pharm Sci, vol.4, n3, p.57-64, 2024
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Abstract

Ascorbic acid (vitamin C) is a water-soluble vitamin; it is present in the highest concentration in the brain. Ascorbic acid in high doses acts as a potential treatment for various neuropathological and psychiatric conditions. Flumazenil is a benzodiazepine antagonist; it competitively inhibits the activity of benzodiazepine and non-benzodiazepine substances that interact with benzodiazepine receptors site on the GABA/benzodiazepine receptor complex. This study aims to investigate the effect of flumazenil on the anxiolytic action of ascorbic acid using an elevated plus maze model of anxiety in rats. Male Albino Wistar rats weighing between 250 and 320 grams were used. Rats were divided into four equal groups of seven rats each and treated as follows: Group I, the control group received a single dose of 1.0% tween 80; Group II treated with a single dose of 125 mg/kg ascorbic acid; Group III was injected by a single dose of 1.0 mg/kg flumazenil; Group IV received a combination treatment of 125 mg/kg ascorbic acid and 1.0 mg/kg flumazenil. Behavioural measurements using a plus maze were scored 30 min after the administration. The parameters scored are the time spent on the open and closed arms, the lines and number of entries into open and closed arms, and the anxiety measure. Ascorbic acid decreased anxiety measure and increased the total lines and total number of entries; this effect was abolished by the administration of flumazenil with ascorbic acid. Thus, ascorbic acid produces an anxiolytic-like effect in rats; this effect was abolished by flumazenil administration with ascorbic acid. This may indicate that the GABA/benzodiazepine receptor complex has to be stimulated to produce the anxiolytic effect.

Keywords

Anxiety, benzodiazepine, drug interaction, GABA, vitamin C

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Submitted date:
08/22/2024

Reviewed date:
09/08/2024

Accepted date:
09/12/2024

Publication date:
09/11/2024

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