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Beard, R.L. and O’Connor, M.K. (2015) Listening to Alzheimer’s: The Role of Social Location. Psychosocial Studies of the Individual’s Changing Perspectives in Alzheimer’s Disease.

has been cited by the following article:

  • TITLE: Reduction of Neurogenesis with Social Isolation Decreases Pain Sensitivity in Tail Flick Test in Male Rats

    AUTHORS: Hamidreza Famitafreshi, Morteza Karimian

    KEYWORDS: Neurogenesis, Pain, Morphine, Glutathione, Social Isolation, Social and Tail Flick Test

    JOURNAL NAME: World Journal of Neuroscience, Vol.7 No.2, May 23, 2017

    ABSTRACT: Introduction: Pain is a complex phenomenon and in many diseases is the cardinal manifestation. In many of them, the source of pain is obscure and in turn curing pain also becomes difficult. Finding a new regulatory mechanism for pain perception and processing such as alternation of neurogenesis may establish a new treatment. Methods and Materials: In this study, 32 male Sprague-Dawley rats were randomly divided into four groups: social, isolated, morphine-treated socialized (MTS) and morphine-treated isolated (MTI). After injection of BrdU for 14 days (50 mg/kg/rat/day/i.p) and morphine for seven days from day 8 (3 mg/kg/rat/day/i.p), rats were performed tail flick test and then sacrificed. Brains were prepared for assessing neurogenesis and serums were collected for assessing glutathione. Results: In tail flick test isolated and morphine-treated isolated rats had decreased sensitivity to pain stimuli compared to social and morphine-treated socialized rats, respectively. In assessing neurogenesis, isolated and morphine-treated isolated rats had reduced numbers of newly generated neurons compared to social and morphine-treated socialized rats, respectively. Glutathione in serum in isolated and morphine-treated isolated rats increased compared to social and morphine-treated socialized rats, respectively. Conclusion: Reduction of neurogenesis was associated with reduced pain sensitivity in isolated groups. So, isolation may alleviate pain and reduce pain threshold and sensitivity.