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L V Devoĭno

Publications and source records attributed to L V Devoĭno.

42 records · Page 3Linked to original sources
PubMedDate not supplied

[Changes in the immune reaction of animals under conditions of drug-induced activation and blockade of D1 dopamine receptors].

A highly selective dopamine D1 receptor agonist (compound SKF 38393) administered in a dose of 20 mg/kg produced a significant increase in the number of rosette-forming cells (RFCs) in the spleen of Wistar rats on the 5th day upon their immunization with goat erythrocytes (5 x 10(8)). At the same time, a specific blocker of these receptors (compound SCH 23390) in a dose of 0.5 or 1 mg/kg inhibited the immune response of rats. In C57BL/6J mice, SCH 23390 (0.25, 0.5, or 1 mg/kg) also significantly reduced the number of RFCs. Preliminary blockade of the D1 dopamine receptors with SCH 23390 (1 mg/kg) prevented the immunostimulating effect of SKF 38393. These data indicate that D1 dopamine receptors are involved in immunomodulation.

2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-ben↗
PubMedDate not supplied

[Significance of initial emotional state for neuroimmunomodulation under conditions of activation or blockade of 5-HT1A receptors].

Selective agonist of 5-HT1A receptors--8-OH-DPAT (1 mg/kg) induced a suppression of the immune reaction in aggressive male CBA mice immunized with SRBC (5 x 10(8)). In submissive mice with 10-day defeat experience in confrontation tests, the activation of 5-HT1A receptors with 8-OH-DPAT did not alter the immune response, whereas the application of selective antagonist of 5-HT1A receptors WAY-100635 increased the immune reaction only in submissive mice. It is concluded that activation or blockade of 5-HT1A receptors produced different effects on the immune function of CBA mice depending on the initial emotional state which is known to be provided in aggressive and submissive animals by different activities of the brain neurotransmitter systems including the 5-HTergic system.

8-Hydroxy-2-(di-n-propylamino)tetralin↗
PubMedDate not supplied

[Influence of prostaglandin synthesis blockade on the immunosuppressive effect of serotonin and haloperidol].

Administration of indomethacin (1.5 and 10 mg/kg) to CBA mice was found to produce a considerable increase of the number of plaque- and rosette-forming cells irrespective of the dose and the interval between its injection and immunization of the mice with ram erythrocytes (5 X 10(6)). The immunogenesis stimulation preserved in the mice after a lesion of the pituitary peduncle. Indomethacin was shown to prevent a decrease of the immune response produced by administration of serotonin (50 mg/kg) and haloperidol (1 mg/kg).

Animals↗
PubMedDate not supplied

[Effect of apomorphine and haloperidol on the immune reaction].

It has been established that injection of apomorphine leads to the dose-dependent enhancement of the immune response in CBA mice whereas that of haloperidol suppresses the number of rosette-forming cells. After thymectomy apomorphine does not stimulate rosette-formation. This indicates that the thymus participates in the realization of apomorphine action. Preliminary injection of haloperidol prevents the apomorphine-induced enhancement of the immune response. The results suggest that the enhancement is mediated through the activation of dopamine receptors.

Animals↗