  We calculate the nucleon parameters in isospin asymmetric nuclear matter
using the QCD sum rules. The nucleon self-energies are expressed in terms of
the in-medium values of QCD condensates. The simple approximate expressions for
the self-energies are obtained in terms of these condensates. Relation between
successive inclusion of the condensates and the meson-exchange picture of the
nucleon interaction with medium is analyzed. The values of the self-energies
and of the symmetry energy agree with those obtained by the methods of nuclear
physics.
