Elena A. Vershinina

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Previous studies found that stressful events during pregnancy can alter the offspring's pain sensitivity to the phasic nociceptive stimuli. The present data constitute the first demonstration of the consequences of prenatal stress to formalin-induced pain in juvenile rats. Injection of formalin into a hind paw of a 25-day-old rat that had not been stressed(More)
The effects of preconditioning using mild repetitive hypobaric hypoxia (360 Torr for 2 h each of 3 days) have been studied in the learned helplessness model of depression in rats. Male Wistar rats displayed persistent depressive symptoms (depressive-like behaviour in open field, increased anxiety levels in elevated plus maze, ahedonia, elevated plasma(More)
The long-term effects of restraint stress in Wistar rats during the last week of gestation were investigated on the acute and tonic phases of the specific biphasic nociceptive behavioral response in the formalin test in offspring, females and males, at 90 days. Prenatal stress produced significant changes in formalin-induced pain, which was more pronounced(More)
The considerable evidence supporting a role for serotonin (5-HT) in the embryonic formation of CNS, mediation of prenatal stress, and pain processing is reviewed. Long-term influences of prenatal 5-HT depletion as well as its combination with prenatal stress effects on tonic nociceptive system in 90-day-old Wistar rats were studied in the formalin test.(More)
Using the combination of molecular dynamics (MD) simulations and geometric clustering we analyzed the role of arginine at 209 position in the transition of protein kinase A Iα (PKA Iα) regulatory subunit A-domain from H- to B-conformation and stabilization of the latter. The mechanism underlying the role of the residue at position 209 in the realization of(More)
In adolescent rats (25–35-day-old) exposed at birth (neonatal days 1 and, repeatedly, 2) to adverse impacts (inflammatory pain, short-term maternal separation stress, or both), sexual dimorphism was found in pain behavior under identical peripheral inflammation conditions. Our priority data indicate an enhancement of pain response in the formalin test in(More)
We reported a perspective animal model of neurodevelopmental disorders using rats prenatally exposed to an inhibitor of serotonin (5HT) synthesis, para-chlorophenylalanine (PCPA). Earlier, we demonstrated that prenatal exposure to PCPA caused fetal 5HT depletion and changes both in open field activity and in depression-related behavior, as well as(More)
Roles of isoforms of constitutive synthase of nitric oxide, neuronal or endothelial (nNOS or eNOS), in control of gastric bicarbonate secretion induced by mild irritation of the gastric mucosa was assessed at the normoacid state or after blockade of gastric acid secretion with omeprazole. In anesthetized rats, the concentration of HCO3- in luminal perfusate(More)
The neural cell adhesion molecule (NCAM) plays a pivotal role in neural development, regeneration, synaptic plasticity, and memory processes. P2 is a 12-amino-acid peptide derived from the second immunoglobulin-like (Ig) module of NCAM mediating cis-homophilic interactions between NCAM molecules present on the same cell. P2 is a potent NCAM agonist, capable(More)
Animals with active and passive strategies of adaptive behavior were selected from a population of Wistar rats by testing in a T maze to measure the indexes of behavioral passivity and behavioral activity. After single (stress) or two (stress-restress) water immersions, individual changes in adaptive behavior were used to study the development of(More)