The influence of combined magnetic field on the fusion of plant protoplasts.

The study of the influence of weak, alternating magnetic field, which was adjusted to the cyclotron frequency of Ca2+ and K+ ions, on the fusion of tobacco and soya protoplasts was carried out using the extra apparatus with ferromagnetic shield. An increase in the frequency of protoplasts fusion in 2-3 times and participation of calcium ions in the induction of protoplast fusion in weak alternating magnetic field have been established.

[Pregnancy and labor in Turner's syndrome].

In recent years, thanks to the introduction of in vitro fertilization method in clinical practice, the possibility of having children with Turner syndrome has increased significantly. Due to pronounced congenital hypogonadism, pregnancy, and especially delivery, in these patients can only be against the background of correct and timely hormone replacement therapy, which creates the conditions for the maturation of an artificially created fertilized ovum implanted in the uterus. Management of such patients before delivery requires a detailed selection of adequate therapy, which leads to gestation and even makes it possible to breastfeed a child.

Lipid peroxidation of plants under microgravity and its simulation.

In series of space experiments aboard the biosatellites "Cosmos 1887", "Bion 9", the orbital stations "Salut", "Mir" and under clinostating, changes of lipid peroxidation (LPO) and antioxidation activity (AOA) of Chlorella, Haplopappus tissue culture, wheat and pea roots were determined. The changes had a complex fluctuation character; three steps of response were established: LPO decreasing accompanied by AOA increase; stabilization LPO <==> AOA balance; secondary LPO activation. Most early and highly amplitude decreasing of LPO were fixed in mitochondria.