Effect of Hydroethanolic Extract of Citrus Aurantium Leaves and Magnesium Sulfate in Mice Model of Vincristine-Induced Neuropathy

Document Type : Research Paper

Authors

1 Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz medical university, Tabriz, Iran.

2 Department of Pharmacology and Toxicology Faculty of Pharmacy Tabriz University of Medical Sciences Tabriz - Iran

3 Department of Pharmacognosy, Faculty of Pharmacy, Tabriz medical university, Tabriz, Iran.

4 Student research committee, Tabriz medical university, Tabriz, Iran.

10.22034/ijps.2022.530233.1845

Abstract

Neuropathic pain due to vincristine administration is an important dose limiting adverse effect with no definite
efficient treatment. Citrus aurantium possesses multiple therapeutic potentials and is commonly used in traditional
medicine. This study investigate the possible effects of the hydroethanolic extract of C. aurantium (CA) leaves and
magnesium sulfate (MgSO4) as a known analgesic in vincristine-induced peripheral neuropathy (VIN). Vincristine
was administered intraperitoneally (IP) to establish peripheral neuropathy in mice. Effects of CA (50,100 and 150
mg/kg, IP) and MgSO4 (50, 75 and 100 mg mg/kg, IP) were assessed on pain threshold performed by hot plate test.
Moreover, the serum levels of total antioxidant capacity (TAC) and malondialdehyde (MDA) were assayed.
Administration of CA (100 and 150 mg/kg) showed significant (p<0.001) decrease in responses to pain. In addition,
MgSO4 in high dose of 100 mg/kg could alleviate the neuropathic symptoms. The result of biochemical tests exerted
high TAC level in all CA treated groups (p<0.01 in 50 mg/kg and p<0.001 for 100 and 150 mg/kg). MDA level was
decreased significantly (p<0.001) by CA (100 and 150 mg/kg) and MgSO4 (100 mg/kg). However the combination
of low dose of CA and MgSO4 exerted no efficient antinociceptive effect. According to the results, it can be
concluded that MgSO4 and CA, in an effective dose range, can be effective in controlling the neuropathic pain
followed by vincristine, possibly through the modulation of antioxidant balance directed by CA or the NMDA and
calcium receptor blocking properties of MgSO4.

Keywords

Iranian Journal of Pharmaceutical Sciences
Volume 18, Issue 1
January 2022
Pages 9-17

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