Coefficient of Variation of Lifespan Across the Tree of Life: Is It a Signature of Programmed Aging?

Measurements of variation are of great importance for studying the stability of pathological phenomena and processes. For the biology of aging, it is very important not only to determine average mortality, but also to study its stability in time and the size of fluctuations that are indicated by the variation coefficient of lifespan (CV). It is believed that a relatively small (~20%) value of CV in humans, comparable to the coefficients of variation of other events programmed in ontogenesis (for example, menarche and menopause), indicates a relatively rigid determinism (N.

Is It Possible to Prove the Existence of an Aging Program by Quantitative Analysis of Mortality Dynamics?

Accumulation of various types of lesions in the course of aging increases an organism's vulnerability and results in a monotonous elevation of mortality rate, irrespective of the position of a species on the evolutionary tree. Stroustrup et al. (Nature, 530, 103-107) [1] showed in 2016 that in the nematode Caenorhabditis elegans, longevity-altering factors (e.

[Specialized acidophilus products in the nutrition of athletes].

The formula and technology of manufacturing 2 types of acidophilic dry products (ADP-1 and ADP-2) for nutrition of the athletes engaged in speed skating and weight lifting were designed. The authors examined the chemical composition and alterations in the content of nitrous fractions on ADP storage. Trials of the products in the athletes provided favourable results.