Features of the response to subchronic low-dose exposure to copper oxide nanoparticles in rats.

Copper is an essential trace element for human health and, at the same time, a major industrial metal widely used both in its elemental form and in compounds. We conducted a dose-dependent assessment of the response of outbred albino male rats to subchronic low-dose exposure to copper oxide nanoparticles administered intraperitoneally at cumulative doses of 18 and 36 mg/kg during 6 weeks to exposure groups 1 and 2, respectively. We observed disorders at different levels of organization of the body in the exposed animals, from molecular to organismal.

[The personalized medicine and organization of geriatric care of population].

The article presents advisability of applying approaches of personalized medicine to solve problems of modern gerontology and geriatrics. The actuality of issue is conditioned by population aging due to rapid increasing of both percentage and absolute number of elderly people in total population of most countries. The ideology of personalized medicine or P4 medicine is targeted to developing individual preventive and therapeutic activities for specific personality.

Ejection of nanoclusters from gold nanoislet layers by 38 keV Au ions in the elastic stopping mode.

Total absolute yields of the ejected gold were obtained regardless of the type of the particles are--atoms, clusters, nanoclusters,--as well as absolute yields of gold nanoclusters, from nanoislet gold targets under bombardment by monoatomic gold ions at 45 degrees to the target surface with the energy 38 keV, i.e., in the "purely" elastic stopping mode -6 keV/nm up to the fluence of 4 x 10(12) cm2.