Citation Context

...nces, Vavilov Str. 26, Moscow 117808, Russia (VMZ) Key words: Rattus norvegicus, phagocytic cell, lymphocyte proliferation, social stress Introduction Consequences of the high density and social stress impact have been demonstrated in both natural populations studies and laboratory experiments (Tompson 1957, Christian and Davis 1964, Shilov 1977, Moshkin et al. 1990, Naumenko et al. 1990, Pra t t and Lisk 1990, Zakharov et al. 1991). Changes in an organism's condition has been indicated by developmental stability decrease revealed for the progeny of socially stressed pregnant females of ra t (Valetsky et al. 1997). However, it is also important to answer the question if these morphological alterations are accompanied by changes in an immune status, as one of the crucial parameters of an organism's condition and its viability. To detect possible changes not only in stressed individuals, but also in their progeny, is essential to estimate the population consequence of the impact. The lat ter seems to be especially important, as it has been shown that viral infections [33] 34 A. V. Pronin et al. at the pregnancy duration lead to more serious changes in immune s ta tus of the offsprings than in the infecte...

Citation Context

...onmental conditions in population dynamics (see Zakharov etsal. 1991).sExperimental evidence for a decrease of developmental stability under socialss t ress has been established in laboratory ra t s (=-=Valetsky et al. 1997-=-). Thesimportance of changes in organism's condition, as detected by a decrease insdevelopmental stability, was established by the simultaneous study of varioussmeasures of developmental homeostasis: ...