Hair Mercury Levels in Pregnant Women: Fish Consumption as a Determinant of Exposure.

The consumption of fish in food may contain mercury, a harmful element and dangerous chemical detrimental to human health. The purpose of this study was to determine the mercury level in the hair of pregnant women with different fish intakes in their diets. The concentration of total mercury in hair was determined using an atomic absorption spectrometer.

The Impact of Social Well-Being on Population Diet Nutritional Value and Antiradical Status.

The paper presents the result of assessing the antiradical status of consumers (in the context of Russia) in connection with their well-being. This approach is based on a multistage study, in which the results of sociological surveys were applied, as well as estimates of the antiradical potential (ARP) of diets obtained using neural networks, bootstrapping the chemical composition of diets, and calculating reference values using mathematical models. The paper presents data collected from residents living in the territories of at least 21 regions and cities of Russia: Magadan, Saint Petersburg, Moscow, Krasnodar, Lipetsk, Vladivostok, Novosibirsk, Omsk, Voronezh, etc.

Complex fitness landscape shapes variation in a hyperpolymorphic species.

It is natural to assume that patterns of genetic variation in hyperpolymorphic species can reveal large-scale properties of the fitness landscape that are hard to detect by studying species with ordinary levels of genetic variation. Here, we study such patterns in a fungus , the most polymorphic species known. Throughout the genome, short-range linkage disequilibrium (LD) caused by attraction of minor alleles is higher between pairs of nonsynonymous than of synonymous variants.

[Long-term maintenance therapy of depressive disorders with antidepressants: experience of using agomelatin].

The article presents the literature data that determine the place of antidepressants in the relief and maintenance therapy for recurrent depression (RD) and depression in the framework of bipolar affective disorder (BPAD) and provides a justification for their use in the presence of residual depressive symptoms during remission. There are several ways to achieve complete remission: determination of the nature of residual symptoms; identification of adverse side-effects that have occurred as a result of the therapy; the establishment of those symptoms that are subjectively perceived by the patient as interfering with his/her full life. The data on the effective use of agomelatin for maintenance therapy, both as monotherapy and in combination with other antidepressants, anticonvulsants and neuroleptics, in RD and BPAD are presented.

Senescence and entrenchment in evolution of amino acid sites.

Amino acid propensities at a site change in the course of protein evolution. This may happen for two reasons. Changes may be triggered by substitutions at epistatically interacting sites elsewhere in the genome.