The characterization of ion channels formed by Pasteurella multocida dermonecrotic toxin.

The influence of the dermonecrotic lethal toxin (approximately 120 kDa) produced by Pasteurella multocida serovarian D on planar phospholipid bilayers was studied. It was found that the toxin is able to increase the conductance of the bilayers by formation of low-conductive and cation-selective ion channels [27 pS at 4.0 M KCl, pH 7.

[Isolation and certain properties of the dermonecrotic toxin from Pasteurella multocida].

The procedure for isolation and purification of Pasteurella multocida serovariant D toxin has been described. It includes the three steps of protein precipitation from cultural filtrates by 70% ammonium sulfate, chromatography of the concentrated material on Ultragel AcA44 gel-filtration on Sephracryl S-200. The proposed technique permits one the 155-fold purification of the preparation with 32.

[Genetic demographic study of an urban sample of Turkmen-teke with behavioral abnormalities].

Genetic and demographic studies of urban sample of Turkmen-teke (Ashkhabad city) were performed among probands-36 patients with diagnosis of "schizophrenia" and their 840 relatives. Clinical analysis revealed 27.8% of phenocopies.

[Population and demographic study of the Turkmen Tekke].

Genetical and demographic studies of typical rural population of Turkomen teke in Yangi-Kala village of the Ashkhabad region (about 5.000 inhabitants) were performed through the examination of a sample of 3528 persons. The population is characterised by intensive growth (mean number of children per one woman is 6.

[Pathologic anatomy of the neurolipidoses].

The authors give a description of 2 cases (sibs) with neurolipidosis of the group of amaurotic idiocy. There was an atypicity of the clinical and pathomophological picture: prolonged development of the disease (24 and 29 years, with an onset at 3-4 years), the absence of ocular changes, a massive lesion of the cortex in relative preservation of the subcortical areas, brain stem and cerebellum. The perspectiveness of a comprehensive clinico-morphological study is discussed in the interpretation of the genesis of different forms of neurolipidosis.

[A neurogenetic study in an inbred population].

A Tatar family from a semi-isolated village in the Gorky Region is described in which a neurological and ophthalmological syndrome was inherited. In homozygotes this syndrome comprised the degeneration of subcortical cerebral ganglia (hyperkinesis), nystagmus, oligophrenia and a peculiar variant of tapetoretinal degeneration. Heterozygotes exhibited ophthalmological abnormalities, such as the similar defects of eye bottom and nystagmus.