[A method for studying intravascular platelet aggregation in vitro].

A simple available method for evaluating intravascular platelet aggregation is proposed. It consists in graphic recording of disaggregation of platelet-rich citrate plasma, which indicates the degree of intravascular aggregation. Intravascular aggregation is notably increased in coronary patients and negligible in normal subjects.

[Burden of hereditary diseases in residents of the Mari El Republic].

A summary of the medical genetic studies of the Marii El population is presented. A total of 276,900 people, 110,894 and 166,006 urban and rural inhabitants, respectively, were examined. Regarding the ethnic composition, the studied population was mostly Mari (61.

[Diversity of hereditary pathology in the population of Marii El Republic and its differentiation with respect to gene frequencies for hereditary diseases].

The diversity of Mendelian hereditary pathology was studied in Marii El Republic. In total, 276,900 subjects, including 171,151 Maris and 88,714 Russians, living in seven raions (districts) were studied. Fifty-five autosomal dominant disease entities were found, with more than ten diseases having a frequency of 1:50,000 people or higher.

[Meadow maris: a genetic landscape].

The distribution of the most frequent family names was analyzed in five regions of the Marii El republic, and diagrams of their genetic landscape were constructed. Based on the diagrams, conclusions were drawn regarding the genetic subdivision of the corresponding populations and the boundary between elementary populations within them.

[Medico-genetic study of residents of Marii El republic: burden of hereditary diseases in four regions of the republic].

A medical genetic study of Orshanskii, Morkinskii, Sovetskii, and Semurskii raions (districts) of the Marii El Republic was performed. The total number of subjects examined was 115,743. Meadow Maris and Russians accounted for the most part of the populations of the districts studied.