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. 2022 Apr 18;17(3):265-273.
doi: 10.4103/1735-5362.343080. eCollection 2022 Jun.

Hydroethanolic extract of Lavandula angustifolia ameliorates vincristine-induced peripheral neuropathy in rats

Shamim Sahranavard  1 , Mona Khoramjouy  2 , Mahsima Khakpash  3 , Seyyed Ahmad Askari  1 , Mehrdad Faizi  3 , Mahmoud Mosaddegh  4
Affiliations

Hydroethanolic extract of Lavandula angustifolia ameliorates vincristine-induced peripheral neuropathy in rats

Shamim Sahranavard et al. Res Pharm Sci. .

Abstract

Background and purpose: Peripheral neuropathy is one of the most common adverse effects of cancer chemotherapy. Vincristine is prescribed to treat a variety of carcinomas, including lymphoma and leukemia, and may cause progressive peripheral neuropathy due to the damage of microtubules and mitochondria of neurons and affects inflammatory processes. This study was designed to evaluate the effects of Lavandula angustifolia hydroalcoholic extract (LHE) of aerial part on vincristine-induced peripheral neuropathy in a rat model.

Experimental approach: Neuropathy was induced in rats by daily intraperitoneal administration of vincristine (0.1 mg/kg for 2 weeks). Following the induction of neuropathy, animals were treated with the LHE (100, 200, and 400 mg/kg, p.o.) or pregabalin (20 mg/kg, IP) for 2 weeks, and their responses to vincristine-induced hyperalgesia and locomotor impairment were measured.

Findings/results: LHE, at the dose of 400 mg/kg, showed analgesic effects in response to thermal hyperalgesia, tactile allodynia, and gait impairment. Also, pregabalin (20 mg/kg, IP) improved the symptoms of vincristine-induced peripheral neuropathy.

Conclusions and implications: According to the results, we can conclude that LHE alleviates neuropathic symptoms of vincristine and the effect is probably related to the presence of phenols and flavonoids in the extract.

Keywords: Lavandula angustifolia; Neuropathy; Vincristine.

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Conflict of interest statement

The authors declared no conflict of interest in this study.

Figures

Fig. 1
Fig. 1
Effect of Lavandula angustifolia (100, 200, and 400 mg/kg) on open field test in vincristine-induced neuropathic pain. Data are expressed as mean ± SEM, n = 8. **P < 0.01 Indicate significance differences in comparison with the control group; #P < 0.05 and ##P < 0.01 versus vincristine-treated (lavender 0 mg/kg) group.
Fig. 2
Fig. 2
Effect of Lavandula angustifolia (100, 200, and 400 mg/kg) on hot plate test in vincristine-induced neuropathic pain. Data are expressed as mean ± SEM, n = 8. ***P < 0.001 Indicate significance differences in comparison with the control group and ##P < 0.01 versus vincristine-treated (lavender 0 mg/kg) group.
Fig. 3
Fig. 3
Effect of Lavandula angustifolia (100, 200, and 400 mg/kg) on von Frey test in vincristine-induced neuropathic pain. Data are expressed as mean ± SEM, n = 8. **P < 0.01 Indicate significance differences in comparison with the control group; ###P < 0.001 versus vincristine-treated (lavender 0 mg/kg) group.
Fig. 4
Fig. 4
Effect of Lavandula angustifolia (100, 200, and 400 mg/kg) on grip strength test in vincristine-induced neuropathic pain. Data are expressed as mean ± SEM, n = 8. *P < 0.05 Indicate significance differences in comparison with the control group; #P < 0.05 versus vincristine-treated (lavender 0 mg/kg) group.
Fig. 5
Fig. 5
Effect of Lavandula angustifolia (100, 200, and 400 mg/kg) on foot print test in vincristine-induced neuropathic pain. Data are expressed as mean ± SEM, n = 8. ***P < 0.001 Indicate significance differences in comparison with the control group; ##P < 0.01 and ###P < 0.001 versus vincristine-treated (lavender 0 mg/kg) group.
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