The variant allele of rs4680 (or V158M) results in reduced enzymatic activity due to its effect on thermostability, 21 and has been associated with reduced opioid activity in response to painful stimuli resulting in increased pain sensitivity.
Sleep deprivation also reduce the ability to process incoming stimuli manifested by increased pain sensitivity and consistent with reported increased-, skin-, light noise-, sensitivitytivity and testing of pain thresholds among migraineurs [15 21].
Ethanol treatment via gavage caused analgesia in the form of decreased sensitivity for nociceptive behaviors for the first two hours (p<0.001), followed by increased pain sensitivity from 4 to 6 hours only in sensitized rats (p = 0.001) (Fig. 1a d).
Increased pain sensitivity after opioid administration (opioid-induced hyperalgesia) and/or repeated painful stimuli is an individually varying and clinically important phenomenon.
Faraut, B. et al. Napping reverses increased pain sensitivity due to sleep restriction.
Women with vestibulodynia exhibit increased pain sensitivity to contact with the vaginal vestibule as well as with vaginal penetration.
Ashina S, Lipton RB, Bendtsen L, Hajiyeva N, Buse DC, Lyngberg AC, Jensen R. Increased pain sensitivity in migraine and tension-type headache coexistent with low back pain: A cross-sectional population study.
One proposition is that stress aggravates already increased pain sensitivity in CTH sufferers [1, 2].
One proposition is that stress aggravates already increased pain sensitivity in CTH sufferers.
Chronic TMJ pain has been associated with somatosensory disturbances such as increased pain sensitivity [14, 15].
Increased pain sensitivity at 6 weeks was associated with having persistent back pain intensity (odds ratio [OR], 2.0; 95% confidence interval [CI], 1.0-4.1) after surgery.
