Research Article

Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats

Volume: 24 Number: 6 June 27, 2025
  • Mohammad Reza Zohrehvand
  • Reza Kazemi
  • Mohammad Hassan Mirasheh
  • Farideh Bahrami
  • Mohammad Ali Zabihian
  • Gholam Hossein Meftahi
  • Mehdi Rahimi-nasrabadi
  • Zahra Bahari

Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats

Abstract

: It is believed that α-adrenoceptors have critical contribution in the process of pain information. Anterior cingulate of cortex (ACC) is a key area of brain associated with pain perception. Pharmacological studies demonstrated that crocin, as a potent antioxidant, has analgesic effects. The underlying analgesic mechanism of the crocin is far from clear. Therefore, the present study was design to examine the interaction of anti-nociceptive effects of crocin with α1- and α2-adrenoceptors of ACC in chronic constriction injury (CCI) model of neuropathic pain. Intra-ACC injection of crocin significantly decreased cold allodynia (using acetone test) and anxiety (using elevated plus maze test) in neuropathic rats from 2 days to 6 days’ post-surgery. Co-injection of crocin and prazosin (α1-adrenoceptors antagonist, 30 μg/5μl) had no effect on the allodynia. However, co-injection of crocin and yohimbine (α2-adrenoceptors antagonist, 30 μg/5μl) significantly increased the allodynia on days 4 and 6 post-surgery as compared with CCI+crocin rats. Moreover, our data identified that neuropathy decreased open arm entries and locomotor activity. Additionally, crocin increased entries to open arms; but this increase was not significant as compared to CCI group. There was no significant difference between CCI+Crocin and CCI+crocin+prazosin groups. However, co-injection of crocin and yohimbine significantly decreased entries to open arms as compared with CCI+crocin group. Furthermore, co-injection of crocin with prazosin or yohimbine did not cause significant changes in locomotor activity. The present study suggested that the anti-nociceptive and anxiolytic effects of crocin appear to be mediated through α2-, and not α1-adrenoceptors in the ACC.

Keywords

References

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Details

Primary Language

English

Subjects

Pharmacology and Pharmaceutical Sciences (Other)

Journal Section

Research Article

Authors

Mohammad Reza Zohrehvand This is me
Iran

Reza Kazemi This is me
Iran

Mohammad Hassan Mirasheh This is me
Iran

Farideh Bahrami This is me
Iran

Mohammad Ali Zabihian This is me
Iran

Gholam Hossein Meftahi This is me
Iran

Mehdi Rahimi-nasrabadi This is me
Iran

Zahra Bahari This is me
Iran

Publication Date

June 27, 2025

Submission Date

January 21, 2020

Acceptance Date

August 10, 2020

Published in Issue

Year 2020 Volume: 24 Number: 6

APA
Zohrehvand, M. R., Kazemi, R., Mirasheh, M. H., Bahrami, F., Zabihian, M. A., Meftahi, G. H., Rahimi-nasrabadi, M., & Bahari, Z. (2025). Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats. Journal of Research in Pharmacy, 24(6), 833-841. https://izlik.org/JA24RG52KU
AMA
1.Zohrehvand MR, Kazemi R, Mirasheh MH, et al. Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats. J. Res. Pharm. 2025;24(6):833-841. https://izlik.org/JA24RG52KU
Chicago
Zohrehvand, Mohammad Reza, Reza Kazemi, Mohammad Hassan Mirasheh, et al. 2025. “Crocin Suppressed Cold Allodynia and Anxiety through α2- Adrenoceptors in the Anterior Cingulate Cortex Following Chronic Constriction Injury of Sciatic Nerve in Rats”. Journal of Research in Pharmacy 24 (6): 833-41. https://izlik.org/JA24RG52KU.
EndNote
Zohrehvand MR, Kazemi R, Mirasheh MH, Bahrami F, Zabihian MA, Meftahi GH, Rahimi-nasrabadi M, Bahari Z (June 1, 2025) Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats. Journal of Research in Pharmacy 24 6 833–841.
IEEE
[1]M. R. Zohrehvand et al., “Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats”, J. Res. Pharm., vol. 24, no. 6, pp. 833–841, June 2025, [Online]. Available: https://izlik.org/JA24RG52KU
ISNAD
Zohrehvand, Mohammad Reza - Kazemi, Reza - Mirasheh, Mohammad Hassan - Bahrami, Farideh - Zabihian, Mohammad Ali - Meftahi, Gholam Hossein - Rahimi-nasrabadi, Mehdi - Bahari, Zahra. “Crocin Suppressed Cold Allodynia and Anxiety through α2- Adrenoceptors in the Anterior Cingulate Cortex Following Chronic Constriction Injury of Sciatic Nerve in Rats”. Journal of Research in Pharmacy 24/6 (June 1, 2025): 833-841. https://izlik.org/JA24RG52KU.
JAMA
1.Zohrehvand MR, Kazemi R, Mirasheh MH, Bahrami F, Zabihian MA, Meftahi GH, Rahimi-nasrabadi M, Bahari Z. Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats. J. Res. Pharm. 2025;24:833–841.
MLA
Zohrehvand, Mohammad Reza, et al. “Crocin Suppressed Cold Allodynia and Anxiety through α2- Adrenoceptors in the Anterior Cingulate Cortex Following Chronic Constriction Injury of Sciatic Nerve in Rats”. Journal of Research in Pharmacy, vol. 24, no. 6, June 2025, pp. 833-41, https://izlik.org/JA24RG52KU.
Vancouver
1.Mohammad Reza Zohrehvand, Reza Kazemi, Mohammad Hassan Mirasheh, Farideh Bahrami, Mohammad Ali Zabihian, Gholam Hossein Meftahi, Mehdi Rahimi-nasrabadi, Zahra Bahari. Crocin suppressed cold allodynia and anxiety through α2- adrenoceptors in the anterior cingulate cortex following chronic constriction injury of sciatic nerve in rats. J. Res. Pharm. [Internet]. 2025 Jun. 1;24(6):833-41. Available from: https://izlik.org/JA24RG52KU