Possible relation of plasma testosterone level to aggressive behavior of male prisoners.

Analysis of testosterone concentration in the blood and urine concentration of norepinephrine and epinephrine showed that testosterone level in aggressive prisoners was higher than in moderately aggressive prisoners, although both concentrations were near the low boundary of normal. The level of norepinephrine was also higher in aggressive prisoners than in moderately aggressive jailed inmates. These data and published reports attest to pronounced role of norepinephrine in the formation the aggressive behavior.

[Small sample assessment method for a bio-medical research].

A new method of small sample assessment is suggested. It is based on combining of different variational series into a single one. Performing combination procedure, common biological laws and logical consideration should be taken into account. Assured right application, this method enables researcher to get some rough estimates of the analyzed phenomenon even having very small amount of actual data.

An attempt at creating the structure of andrological science.

The cognition and assessment of various spheres of behaviour and vital activity of man are possible only through a systemic approach to its study. It is necessary to point out the different levels of methodological approach to the problem of a successful development of andrology and to determine their tasks and limitations. The main sections of research of andrology must include: medico-biological, philosophic-anthropological, sociological, and psychological investigations of personality. Accordingly andrology is at a junction of the natural and social sciences, i.e. an interdisciplinary science.

[Trigger properties of gonadotropic hormones and oocyte factors in connection with the germinal epithelium of the rat testis]. / Triggernye svoistva gonadotropnykh gormonov i faktorov iaitsekletki v prilozhenii k germinativnomu épiteliiu semennika krysy

In order to reveal possible stimulation of growth of the germinal epithelium of the rat's injured testicle the animals were injected follicle-stimulating and luteinizing hormones and their mixture as well as homogenate of fertilized egg-cells during two weeks. Changes of neurosecretion in large-cell nuclei of the anterior hypothalamus, cellular set in the adenohypophysis and the condition of the germinal epithelium in the gonad under study were investigated. Identical phenomena of reduction (having quantitative distinctions) took place due to effects of exogeneous honadotropins in neurosecretory nuclei and the adenohypophysis. In testicular tubules there occurred pronounced proliferation of the germinal epithelium, but spermatogenesis was absent. Egg-cell homogenate failed to cause changes in neurosecretion and adenohypophysis but resulted in completing the developmental cycle of the germinal epithelium with mature spermatozoa. The effect of gonadotropins upon the system hypothalamus-hypophysis is explained by feed-back mechanism, and the absence of spermatogenesis--by the lack of androgens. The rsults of egg-cell homogenate effects should be associated with local stimulating effects of DNA of the dividing egg-cell.