Journals / Çukurova Anestezi ve Cerrahi Bilimler Dergisi / 2026 / Cilt: 9 Sayı: 2

The analgesic effect of thymoquinone in the reserpine-induced experimental fibromyalgia model

Reserpin ile indüklenen deneysel fibromiyalji modelinde timokinonun analjezik etkisi

Mehmet Sargın(SELÇUK ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0002-6574-273X
Burcu Gezer Yurteri(SELÇUK ÜNİVERSİTESİ, TIP FAKÜLTESİ, TIP PR.)0009-0008-6492-9413
Sinan Değirmencioğlu(SELÇUK ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0003-4731-6937
Mehmet Selçuk Uluer(SELÇUK ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0002-5699-8688
Pages
349–354
Publication Date
2026-06-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Further studies are warranted to clarify its mechanism of action and modality-specific analgesic profile.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Fibromyalgia is a chronic pain syndrome characterized by widespread pain and sensory hypersensitivity, for which effective and well-tolerated treatments remain limited.
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Key Findings & Data:Methods: Male Wistar rats were randomly allocated into three groups (n = 6 per group): control, reserpine, and reserpine + thymoquinone.
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Conclusion & Impact:Further studies are warranted to clarify its mechanism of action and modality-specific analgesic profile.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Fibromiyalji · Timokinon · Rezerpin

Abstract

Aim: Fibromyalgia is a chronic pain syndrome characterized by widespread pain and sensory hypersensitivity, for which effective and well-tolerated treatments remain limited. This study aimed to evaluate the analgesic effect of thymoquinone (TQ) in a reserpine-induced experimental fibromyalgia model in rats. Methods: Male Wistar rats were randomly allocated into three groups (n = 6 per group): control, reserpine, and reserpine + thymoquinone. Fibromyalgia-like pain was induced by subcutaneous administration of reserpine (1 mg/kg) once daily for three consecutive days. Thymoquinone (100 mg/kg) was administered orally four days after the final reserpine injection. Mechanical allodynia and thermal hyperalgesia were assessed using the von Frey filament test and the hot-plate test, respectively, at baseline and at 30, 60, 120, and 180 minutes following treatment. Behavioral assessments were performed by an investigator blinded to group allocation. Non-parametric statistical analyses were applied. Results: Baseline mechanical and thermal nociceptive thresholds did not differ significantly among groups. Thymoquinone treatment resulted in a significant increase in mechanical withdrawal thresholds compared with both control and reserpine-only groups at 60, 120, and 180 minutes (p < 0.01), indicating a marked attenuation of reserpine-induced mechanical allodynia. In contrast, no statistically significant differences were observed between groups in hot-plate latency times at any time point, although numerically higher latencies were noted in the thymoquinone-treated group at later assessments. Conclusions: Thymoquinone exerts a significant analgesic effect on mechanical allodynia in a reserpine-induced fibromyalgia model, suggesting its potential as a novel therapeutic agent for fibromyalgia-associated pain. Further studies are warranted to clarify its mechanism of action and modality-specific analgesic profile.

Özet

Amaç: Fibromiyalji, yaygın ağrı ve duyusal aşırı duyarlılık ile karakterize kronik bir ağrı sendromudur ve etkili, iyi tolere edilen tedavi seçenekleri halen sınırlıdır. Bu çalışmanın amacı, sıçanlarda reserpin ile indüklenen deneysel fibromiyalji modelinde timokinonun (TQ) analjezik etkisini değerlendirmektir. Yöntem: Erkek Wistar sıçanlar rastgele üç gruba ayrıldı (her grup için n = 6): kontrol, reserpin ve reserpin + timokinon. Fibromiyalji benzeri ağrı, üç ardışık gün boyunca günde bir kez subkutan reserpin (1 mg/kg) uygulanmasıyla oluşturuldu. Son reserpin enjeksiyonundan dört gün sonra timokinon (100 mg/kg) oral yoldan uygulandı. Mekanik allodini ve termal hiperaljezi, sırasıyla von Frey filament testi ve sıcak plaka testi kullanılarak; başlangıçta ve tedaviyi takiben 30, 60, 120 ve 180. dakikalarda değerlendirildi. Davranışsal değerlendirmeler, grup dağılımından habersiz bir araştırmacı tarafından gerçekleştirildi. İstatistiksel analizlerde parametrik olmayan yöntemler kullanıldı. Bulgular: Başlangıçta mekanik ve termal nosiseptif eşikler açısından gruplar arasında anlamlı bir fark saptanmadı. Timokinon tedavisi, 60, 120 ve 180. dakikalarda hem kontrol hem de yalnızca reserpin verilen gruplara kıyasla mekanik çekilme eşiklerinde anlamlı bir artışa yol açtı (p < 0,01) ve bu durum reserpinle indüklenen mekanik allodininin belirgin biçimde azaldığını gösterdi. Buna karşılık, sıcak plaka gecikme süreleri açısından herhangi bir zaman noktasında gruplar arasında istatistiksel olarak anlamlı fark gözlenmedi; ancak ileri zaman değerlendirmelerinde timokinon uygulanan grupta sayısal olarak daha yüksek gecikme süreleri dikkati çekti. Sonuç: Timokinon, reserpin ile indüklenen fibromiyalji modelinde mekanik allodini üzerinde anlamlı bir analjezik etki göstermektedir ve fibromiyaljiye eşlik eden ağrının tedavisinde potansiyel yeni bir terapötik ajan olabileceğini düşündürmektedir. Etki mekanizmasının ve modaliteye özgü analjezik profilinin aydınlatılması için ileri çalışmalara ihtiyaç vardır.

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Cite This Article

Sargın, M., Yurteri, B. G., Değirmencioğlu, S., Uluer, M. S. (2026). The analgesic effect of thymoquinone in the reserpine-induced experimental fibromyalgia model. Çukurova Anestezi ve Cerrahi Bilimler Dergisi, Cilt: 9 Sayı: 2, 349–354. https://doi.org/10.36516/jocass.1883533

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References (14)

  1. Häuser W, Ablin J, Fitzcharles MA, et al. Fibromyalgia. Nat Rev Dis Primers. 2015;1:15022.
  2. Clauw DJ. Fibromyalgia: a clinical review. JAMA. 2014;311(15):1547-1555.
  3. Nagakura Y, Oe T, Aoki T, Matsuoka N. Biogenic amine depletion causes chronic muscular pain and tactile allodynia accompanied by depression: a putative animal model of fibromyalgia. Pain. 2009;146(1-2):26-33.
  4. Woo CC, Kumar AP, Sethi G, Tan KH. Thymoquinone: potential cure for inflammatory disorders and cancer. Biochem Pharmacol. 2012;83(4):443-451.
  5. Amin B, Hosseinzadeh H. Black cumin (Nigella sativa) and its active constituent, thymoquinone: an overview on the analgesic and anti-inflammatory effects. Planta Med. 2016;82:8-16.
  6. Zimmermann M. Ethical guidelines for investigations of experimental pain in conscious animals. Pain. 1983;16(2):109-110.
  7. Chaplan SR, Bach FW, Pogrel JW, Chung JM, Yaksh TL. Quantitative assessment of tactile allodynia in the rat paw. J Neurosci Methods. 1994;53(1):55-63.
  8. Matsumoto K, Mizowaki M, Suchitra T, et al. Central antinociceptive effects of mitragynine in mice: contribution of descending noradrenergic and serotonergic systems. Eur J Pharmacol. 1996;317(1):75-81.
  9. Thongpradichote S, Matsumoto K, Tohda M, et al. Identification of opioid receptor subtypes in antinociceptive actions of supraspinally-administered mitragynine in mice. Life Sci. 1998;62(16):1371-1378.
  10. Hunskaar S, Berge OG, Hole K. A modified hot-plate test sensitive to mild analgesics. Behav Brain Res. 1986;21(2):101-108.
  11. Samad N, Manzoor N, Muneer Z, Bhatti SA, Imran I. Reserpine-induced altered neuro-behavioral, biochemical and histopathological assessments prevented by enhanced antioxidant defence system of thymoquinone in mice. Metab Brain Dis. 2021;36(8):2535-2552.
  12. Anaeigoudari A. Antidepressant and anti-nociceptive effects of Nigella sativa and its main constituent, thymoquinone: a literature review. Asian Pac J Trop Biomed. 2022;12(12):495-503.
  13. Aboutaleb AS, Allam A, Zaky HS, et al. Novel insights into the molecular mechanisms underlying anti-nociceptive effect of myricitrin against reserpine-induced fibromyalgia model in rats: implication of SIRT1 and miRNAs. J Ethnopharmacol. 2024;335:118623.
  14. Argenbright CM, Bertlesman AM, Russell IM, et al. The fibromyalgia pain experience: a scoping review of the preclinical evidence for replication and treatment of the affective and cognitive pain dimensions. Biomedicines. 2024;12(4):778.