[Features of drainage of pyelocaliceal system in children after laparoscopic pyeloplasty].

The study was aimed to improvement of results of treatment of children with congenital hydronephrosis due to reduction ofinvasiveness of operative approach and optimization of method of urine derivation in the postoperative period. From February 2008 to February 2012, 30 laparoscopic pyeloplasty were performed (16 boys, 14 girls, age from 2 months to 14 years, body weight 5500 g and more). Transabdominal pyeloplasty was performed by the Hynes-Anderson method.

Disability trends in gender and race groups of early retirement ages in the USA.

Objectives: To analyse disability trends over the 1980s-1990s in gender and race groups of early retirement ages in USA.

Methods: Disability trends for white and black males and females aged 65-69 and 70+ are analysed using the 1982-1999 NLTCS. Disability is analysed at three levels (instrumental activities of daily living (IADL), activities of daily living (ADL), and institutionalisation).

Hormesis and debilitation effects in stress experiments using the nematode worm Caenorhabditis elegans: the model of balance between cell damage and HSP levels.

In this article, we discuss mechanisms responsible for the effects of heat treatment on increasing subsequent survival in the nematode worm Caenorhabditis elegans. We assume that the balance between damage associated with exposure to thermal stress and the level of heat shock proteins produced plays a key role in forming the age-pattern of mortality and survival in stress experiments. We propose a stochastic model of stress, which describes the accumulation of damage in the cells of the worm as the worm ages.