Two septal-entorhinal GABAergic projections differentially control coding properties of spatially tuned neurons in the medial entorhinal cortex

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Dynamics of chromosome variation in mole voles <Emphasis Type="Italic">Ellobius tancrei</Emphasis> (Mammalia,Rodentia) in Pamiro-Alay in the period from 1982 to 2008

Analysis of a new karyological material of mole voles Ellobius tancrei from a zone of high chromo-some variation (Pamiro-Alay) in comparison with the data obtained 25 years ago showed a slight shift of the chromosome numbers on the western border of the Robertsonian fan due to the expansion of the area of forms with a low chromosome number. In the central part of the fan zone, the process of active hybridization of forms with different chromosome numbers, but not of the original forms, is still going on. Some problems of speciation on the basis of Robertsonian translocations are discussed.     

Inhibitor factors in the serum of patients with the AIDS-related complex

The data on the presence of factors blocking the reaction of E-rosette formation and leukocyte chemotaxis in the blood sera of patients with AIDS-related complex (ARC) and HIV-positive donors are presented. Most frequently the blocking of E-rosette formation coincided with the presence of a inhibiting effect on the migration capacity of leukocytes. This blocking activity was not linked with the presence of C-reactive protein in the circulation stream. The treatment of ARC patients with plasmapheresis and/or travolol was accompanied either by the disappearance of blocking activity or by the appearance of activity stimulating E-rosette formation.     

Small RNA regulation of ovule development in the cotton plant, <Emphasis Type="Italic">G. hirsutum</Emphasis>L

Background  

The involvement of small RNAs in cotton fiber development is under explored. The objective of this work was to directly clone, annotate, and analyze small RNAs of developing ovules to reveal the candidate small interfering RNA/microRNAs involved in cotton ovule and fiber development.     

Cellular immunity function in HIV-1-infected persons

The data on the state of cell-mediated immunity in patients with AIDS-related complex are presented. The synthetic peptide of membrane protein gp120 of HIV-1 was shown to inhibit leukocyte adhesion in persons under examination, as well as to have the tendency towards inhibiting the chemotaxis of migratory cells. The maximum effect was achieved at a peptide concentration of 10(-6) M. The data obtained in this investigation suggest the presence of specific cell-mediated sensitization to the fragment of protein gp120, detected by the adhesion inhibition test with the use of spectrophotometric techniques and the capillary evaluation of the chemotaxis of migrating cells, in patients with AIDS-related complex.