A Comparative Study on the Antinociceptive Effects of Phosphodiesterase Inhibitors on Sciatic Nerve Ligation Induced Neuropathic Pain in Mice

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BAZI ALI; Poodineh Zahra; Behdani Bentolhoda; Rigi Mehrafrooz; Arezoomandan Hamideh; Sahragard Fatemeh; Miri Fatemeh; Anvari Najla; Jahanpanah Anita; TABRIZIAN KAVEH

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Journal: International Journal of Basic Science in Medicine Year:2018 | Volume:3 | Issue:4 Page(s): 168-171

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Title

A Comparative Study on the Antinociceptive Effects of Phosphodiesterase Inhibitors on Sciatic Nerve Ligation Induced Neuropathic Pain in Mice

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Keywords

Neuropathic pain

Hot plate test

Phosphodiesterase inhibitors

Imipramine

Mice

Abstract

Introduction: The role of phosphodiesterase (PDE) inhibitors in reducing Neuropathic pains is uncertain. In this study, the antinociceptive effects of theophylline, milrinone, and tadalafil were investigated on sciatic nerve ligation-induced Neuropathic pain (NP). Methods: Male Mice (25-30 g) were purchased and housed in controlled environmental conditions before and during the experiments. The Mice received identical diet and water ad libitum. Two weeks after sciatic nerve ligation, either theophylline (75 mg/kg), milrinone (4. 5 mg/kg), or tadalafil (20 mg/kg) was intraperitoneally (IP) injected for either 1, 3, or 7 consecutive days. Antinociceptive effects were evaluated using the Hot plate test. Negative controls received time course IP injections of saline (5 mL/kg). A single dose of Imipramine (40 mg/kg, ) was intraperitoneally administrated to the Mice in the positive control group. Results: As was found for this study, a single-dose IP injection of either theophylline (75 mg/ kg), milrinone (4. 5 mg/kg), or tadalafil (20 mg/kg) on day 14th following sciatic nerve ligation induced significant antinociceptive effects at 30 minutes (P < 0. 01), 60 minutes (P < 0. 01), and 90 minutes (P < 0. 05) compared to the control (saline– treated) animals. Accordingly, both 3-(on days 12– 14) and 7-day (on days 8– 14) IP injections of tadalafil (20 mg/kg) induced significant antinociceptive effects at 30 minutes (P < 0. 05), 60 minutes (P < 0. 01), and 90 minutes (P < 0. 01) after sciatic nerve ligation compared to the control (saline– treated) animals. However, the 3-and 7-day IP injections of theophylline and milrinone did not reveal any significant differences compared to the control group. Conclusion: Taken together, the results of this study suggested that selective PDE inhibitors that act predominantly on cGMP pathway, may contribute to the management of sciatic nerve ligation– induced pain.

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APA: Copy

BAZI, ALI, Poodineh, Zahra, Behdani, Bentolhoda, Rigi, Mehrafrooz, Arezoomandan, Hamideh, Sahragard, Fatemeh, Miri, Fatemeh, Anvari, Najla, Jahanpanah, Anita, & TABRIZIAN, KAVEH. (2018). A Comparative Study on the Antinociceptive Effects of Phosphodiesterase Inhibitors on Sciatic Nerve Ligation Induced Neuropathic Pain in Mice. INTERNATIONAL JOURNAL OF BASIC SCIENCE IN MEDICINE, 3(4), 168-171. SID. https://sid.ir/paper/350721/en

Vancouver: Copy

BAZI ALI, Poodineh Zahra, Behdani Bentolhoda, Rigi Mehrafrooz, Arezoomandan Hamideh, Sahragard Fatemeh, Miri Fatemeh, Anvari Najla, Jahanpanah Anita, TABRIZIAN KAVEH. A Comparative Study on the Antinociceptive Effects of Phosphodiesterase Inhibitors on Sciatic Nerve Ligation Induced Neuropathic Pain in Mice. INTERNATIONAL JOURNAL OF BASIC SCIENCE IN MEDICINE[Internet]. 2018;3(4):168-171. Available from: https://sid.ir/paper/350721/en

IEEE: Copy

ALI BAZI, Zahra Poodineh, Bentolhoda Behdani, Mehrafrooz Rigi, Hamideh Arezoomandan, Fatemeh Sahragard, Fatemeh Miri, Najla Anvari, Anita Jahanpanah, and KAVEH TABRIZIAN, “A Comparative Study on the Antinociceptive Effects of Phosphodiesterase Inhibitors on Sciatic Nerve Ligation Induced Neuropathic Pain in Mice,” INTERNATIONAL JOURNAL OF BASIC SCIENCE IN MEDICINE, vol. 3, no. 4, pp. 168–171, 2018, [Online]. Available: https://sid.ir/paper/350721/en

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