  The analysis of tunneling experiments showing the pseudogap type behavior is
carried out based on the idea of the renormalization of density of states due
to the inter-electron interaction in the Cooper channel (superconducting
fluctuations contribution in tunneling current). It is demonstrated that the
observed kink of the zero-bias conductance $G(0,T)$ of $YBaCuO/Pb$ junctions in
the vicinity of $T_c$ can be explained in terms of fluctuation theory in a
quite wide range of temperature above $T_c$, using the values of microscopic
parameters of the $YBaCuO$ electron spectrum taken from independent
experiments. The approach proposed also permits to explain qualitatively the
shape of the tunneling anomalies in $G(V,T)$ and gives a correct estimate for
the pseudogap position and amplitude observed in the experiments on $BiSrCaCuO$
junctions.
