[Topography of lymphatic collectors and regional lymph nodes of the canine heart and their morphological characteristics]. / Topografiia limfaticheskikh kollektorov i regionarnykh limfaticheskikh uzlov serdtsa sobaki i ikh morfologicheskie osobennosti.

In 40 dogs lymphatic vessels and regional lymph nodes of the heart have been prepared. Morphology of the regional lymph nodes have been studied by means of various histological techniques. Lymph outflow from the canine ventricles is realized by three (less often), or by two (more often) collectors. In very rare cases one collector is formed. From the right atrium lymph flows out in two collectors (cranial and left). Lymphatic vessels of the left atrium get into the left collector of the ventricles, or into the tracheobronchial lymph nodes. Into the same nodes gets the lymphatic vessel, forming at the border of the left and right atrii. Cranial, medial, caudal mediastinal nodes (lymphatic mediastinal system) and right, middle and left tracheobronchial lymph nodes (tracheobronchial system) are regional lymph nodes of the canine heart. In the lymph nodes of the tracheobronchial system of puppies older than one month presence of exogenic pigment and signs of fibrous degeneration of parenchyma are noted.

[Characteristics of the cellular reactions of the T- and B-dependent areas of the regional lymph nodes in dogs to the administration of immunodepressants]. / Osobennosti kletochnykh reaktsii T- i B-zavisimykh zon regionarnykh limfaticheskikh uzlov sobaki na vvedenie immunodepressantov.

Mesenteric, bifurcational, axillary and popliteal lymph nodes have been studied in 22 healthy mature male dogs. Amount of blast cells, small lymphocytes, plasma cells and macrophages has been taken into account in the paracortical zone, in the germinative centers and in the medullary cords. For two weeks to one group of the animals every day imuran in turn with aurantin (10 mg/kg and 25 mg/kg) are injected, or antilymphocytic serum (ALS) intraperitoneally every other day (0.1 ml/kg). The combined injection of imuran and aurantin produces a more pronounced toxic effect to the hemopoietic organs than ALS. ALS is more specific for T-dependent zones of the lymph nodes. In the dose and interval mentioned ALS is an immunostimulating preparation for the immunocompetent cells of the germinative centers of the lymph nodes. The reaction of the lymph nodes depends on their regional belonging.