Capillary electrophoresis to quantitate gossypol enantiomers in cotton flower petals and seed.

Gossypol is a toxic compound that occurs as a mixture of enantiomers in cotton plant tissues including seed and flower petals. The (-)-enantiomer is more toxic to non-ruminant animals. Efforts to breed cottonseed with a low percentage of (-)-gossypol requires determination of the (+)- to (-)-gossypol ratio in seed and flower petals.

[Status of immunity in newborn infants and young children born to mothers with tuberculosis].

The children born to tuberculosis mothers show a decline in T-lymphocyte count and in their functional activity, an increase in specific immunity parameters, which is manifested by a higher level of antituberculosis antibodies and a marked proliferative lymphocyte response to tuberculin. It has been established that the level of specific antibodies in children and their mothers is related to the clinical form of tuberculosis. The discovered features of specific and nonspecific immunity in newborns and infants born to tuberculosis mothers should be considered in the organization of preventive measures in this group of children.