[Lens histamine-containing structures of the rat's eye].

: The objective of this study was to analyze the distribution, localization and morphological features of lens histamine-containing structures. Studies were performed using the lenses of 37 intact outbred male rats sacrificed at the same time of the day. The methods of light and luminescent microscopy and cytospectofluorometry were applied to obtain the quantitative characteristics and detailed morphological description of histamine-containing structures in the different parts of lens. It was shown that all the epithelial cells and cells-fibers of the lens contain histamine. Depending upon the degree of condensation of nuclear chromatin and their histamine content, the nuclei of lens cells could be subdivided into two types: type A nuclei with high histamine content and high degree of chromatin condensation; type B nuclei with low histamine concentration and slight chromatin condensation.