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. 2010 Feb 3;26(1):17–27. doi: 10.1007/s12264-010-0713-x

Protective effects of selective and non-selective cyclooxygenase inhibitors in an animal model of chronic stress

选择性和非选择性环氧合酶抑制剂对慢性压力小鼠模型具有保护作用

Anil Kumar 1, Beenta Kumari 1, Puneet Kumar 1,✉
PMCID: PMC5560377  PMID: 20101269

Abstract

Objective

Cyclooxygenase isoenzyme is known to be expressed in different regions of brain, and is mainly used for the treatment of pain and inflammation. Recently, it is proposed that cyclooxygenase isoenzyme may also play a key role in the pathophysiology of various brain-related disorders. The present study was aimed to explore the protective effect of cyclooxygenase inhibitors on stress by using an animal model of chronic stress.

Methods

The animals were forced to swim individually for a period of 6 min every day for 15 d. Then, the behavior (locomotor activity, anxiety and memory) and biochemical (lipid peroxidation, nitrite level, reduced glutathione, and catalase) alterations were assessed.

Results

Forced swimming for 15 d caused impaired locomotor activity, anxiety-like behavior and decreased percentage of memory retention, as compared to naïve mice (without chronic fatigue treatment). Biochemical analysis revealed significant increases in lipid peroxidation and nitrite level, while levels of reduced glutathione and catalase activity were both decreased. Chronic treatment with naproxen (14 mg/kg, i.p.), rofecoxib (5 mg/kg, i.p.), meloxicam (5 mg/kg, i.p.), nimesulide (5 mg/kg, i.p.) and valdecoxib (10 mg/kg, i.p.) significantly attenuated these behavioral and biochemical (oxidative damage) alterations in chronic-stressed mice.

Conclusion

The cyclooxygenase inhibitors could be used in the management of chronic fatigue-like conditions.

Keywords: chronic fatigue syndrome, naproxen, valdecoxib, rofecoxib, nimesulide, meloxicam

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