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See detailChronic Social Stress Time-Dependently Affects Neuropathic Pain-Related Cold Allodynia and Leads to Altered Expression of Spinal Biochemical Mediators
Le Coz, Glenn Marie; Genty, Julien UL; Anton, Fernand UL et al

in Frontiers in Behavioral Neuroscience (2017), 11

Clinical data have shown that chronic exposure to stress may be accompanied by an enhancement of inflammation-related pain sensitivity. In this context, little is however known on the impact of stress on ... [more ▼]

Clinical data have shown that chronic exposure to stress may be accompanied by an enhancement of inflammation-related pain sensitivity. In this context, little is however known on the impact of stress on neuropathic pain. In the present study we addressed this issue by combining the chronic constriction injury (CCI) model with an ongoing social stress (OSS) paradigm. Cold plate and von Frey tests were performed in 48 rats divided into four groups: OSS exposed to OSS, CCI subjected to chronic nerve constriction, OSS+CCI with a combination of neuropathy and stress and CON, a control group lacking any manipulation. While we did not observe any stress-related differences in mechanical sensitivity throughout the observation period, CCI rats were more sensitive to cold stimulation than OSS+CCI in the initial phase of neuropathy. A switch was observed at a later stage, leading to a hypersensitivity of the OSS+CCI compared to the CCI rats. At this time point we investigated the spinal mRNA expression of neuron and glia related molecules potentially involved in neuropathic pain and stress. The combination of psychosocial stress and neuropathic pain seemed to enhance glial cell activation, pro-inflammatory cytokine and neurotrophic factor mRNA levels, rather than glutamatergic transmission. Our data show that long lasting social stress may lead to time-dependent alteration of neuropathy-related cold pain sensitivity while mechanicallyinduced pain remains unchanged. [less ▲]

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See detailStress Strengthens Memory of first impressions of others’ positive personality traits
Lass-Hennemann, J.; Kuehl, L.; Schulz, André UL et al

in Frontiers in Behavioral Neuroscience (2009)

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See detailRapid impairment of sensorimotor gating by stress-level cortisol
Richter, S.; Schulz, André UL; Blumenthal, T. D. et al

in Frontiers in Behavioral Neuroscience (2009)

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See detailAttentional networks are differentially affected by baro-afferent feedback
Schulz, André UL; Wager, J.; Romer, S. et al

in Frontiers in Behavioral Neuroscience (2009)

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See detailOral cortisol improves implicit sequence learning
Roemer, S.; Schulz, André UL; Richter, S. et al

in Frontiers in Behavioral Neuroscience (2009)

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