[Lectin histochemistry of human placenta in the normal state and in uterine inertia].

The lectin-peroxidase technique has been used. The peanut lectin is able to label selectively Kashchenko--Hofbauer cells, villi of the chorion; the soya lectin--decidual cells in the maternal part of the placenta. Prolonged labour development is connected with disappearance of Kashchenko--Hofbauer cells, with a reduced binding of the Laburnum anagyroides lectin in combination with an intensified peanut lectin and concanavalin A binding with glycopolymeres of the villi of the chorion.