[Evaluation of upper urinary tract function in patients undergoing autoplastic surgery for hydronphrosis of the intrarenal pelvis].

Aim: To investigate the functional state of the upper urinary tract in patients undergoing autoplastic surgery for a hydronophrosis of the intrarenal pelvis.

Material And Methods: The study comprised 78 patients with the intrarenal pelvis and impaired urinary outflow due to stricture of the ureteropelvic junction and vascular conflict (interatrial and arteriovenous narrowing), who underwent pyeloplasty using autologous tunica vaginalis. All patients underwent an incision of ureteropelvic stricture and resection of the parietal layer of the tunica vaginalis which was used to repair the obstruction site and internal stenting of the upper urinary tract.

[Experimental work: reconstruction of the pelvi-ureteric junction and ureter using testicular tunica vaginalis autograft].

Aim: To evaluate the results of surgical reconstruction of the upper urinary tract using an autograft of testicular tunica vaginalis in experimental animals.

Materials And Methods: The article presents the results of partial replacement of the renal pelvis and ureter with an autograft in 25 male dogs. The grafts were harvested by resection of the parietal layer of the testicular tunica vaginalis, which was transplanted into the region of the pelvi-ureteric junction and the proximal ureter.

Disorders of the immune system in severely burned patients.

This paper analyses the results of immunological examinations of 124 patients with thermal injury. We examined indices of peripheral blood such us the size of the population of circulating T-lymphocytes (CD3), T-helpers (CD4), T-suppressors (CD8 and CD25), natural cell killers (CD16), transmembrane protein of apoptotic activity (CD16), B-lymphocytes, phagocyte activity of lymphocytes, and the level of serum antibody of the basic classes (Ig G, A, M). It was discovered that the burn disease was accompanied by deeply marked secondary immune deficiency primarily caused by all components of the active suppression of the cellular link of the immune system and reduction of phagocyte activity of neutrophils.

[Blood serum of patients with secondary progressive multiple sclerosis changes neuron electric activity].

An effect of 20% blood serum estimated by the changes of background and excited spike activity of Retzius' neuron by Hirudo medicinalis, which does not contain myelin, has been studied in 2 groups of patients. The first group comprised patients with serum, containing antibodies to gangliosides, and the second one--patients without such antibodies. Incubation of Reitzius neurons in the serum with GM1-antibodies within 40 min resulted in the change of spike form, increase of cell stimulation threshold by average 20%, reduction of the frequency of spontaneous impulse activity by average 28%, decrease of the spikes number in response to the lower frequency (0.