Abstract:
:Pain is considered a multidimensional conscious experience that includes a sensory component and a negative affective-motivational component. The negative affective-motivational component of pain is different from the sensory component and amplifies the pain experience. Nowadays, a significant number of preclinical research groups have focused their attention on the affective symptoms of pain. In the present study, we investigated the pain aversion and anxiety-like behavior of the complete Freund's adjuvant (CFA)-induced chronic pain model. CFA rats experienced spontaneous pain during pain-paired conditioning (pain aversion) and spontaneous pain produces an affective response (anxiety-like behavior). Moreover, pain aversion was gradually attenuated, while the anxiety-like behavior increased in 4 weeks. Therefore, although the negative effect (including pain aversion and anxiety) is always associated with hyperalgesia, the manifestations of negative effect may follow different time courses, which may influence the progress of primary disease. The findings illustrate that targeted therapy should focus on a specific aspect in different stages of pain. Our study emphasizes the necessity of using multiple tests to study pain comorbidities.
journal_name
J Pain Resjournal_title
Journal of pain researchauthors
Wu Y,Yao X,Jiang Y,He X,Shao X,Du J,Shen Z,He Q,Fang Jdoi
10.2147/JPR.S139679subject
Has Abstractpub_date
2017-11-06 00:00:00pages
2585-2593issn
1178-7090pii
jpr-10-2585journal_volume
10pub_type
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