[Left fouratrial heart. First clinical case].

The left three-atrial heart (LTH) is a rare congenital abnormality where the left auricle (LA) is divided into two chambers with an additional membrane. This article describes for the first time a clinical case of congenital heart defect with four atrial chambers. A 41-old man was hospitalized for newly diagnosed paroxysmal atrial fibrillation.

[Rate of free radical peroxidation of lipids, activity of adenylate cyclase and permeability of plasma membrane for Ca2+ ions in cells of peripheral blood of sheep exposed to low-level radiation].

Chronic exposure of sheep at doses 0.1 and 0.5 Gy resulted in reduced contents of malondialdehyde, of diene and of triene conjugates and alpha-tocopherol with simultaneous increase in the retinol level in blood plasma.

[Evaluation of cell membrane permeability for Ca2+ and adenylate cyclase in sheep peripheral blood cells, exposed to low doses of radiation].

Chronic irradiation of sheep with doses of 2.6 and 12.9 mC.

[Assessment of lipid peroxidation and plasma membrane permeability for Ca2+ in the red blood cells of cattle after the long term grazing on radioactively contaminated territory].

Ten years after the Chernobyl accident a physiological condition of cows was examined on radioactivy contaminated territory of the Novozibkov district of the Bryansk region. The long grazing of cattle on radioactivly contaminated territory revealed the increase in permeability of plasmatic membrane of the red blood cells to Ca2+ and the activation of process of lipid peroxidation. The sensitivity of the red blood cells of cows to incubations in hypertonic conditions was demonstrated.

[Diagnosis and treatment of tuberculous peritonitis].

Basing on 73 cases, the experience in diagnosis and treatment of tuberculous peritonitis (TP) has been summarized. The analysis of principal clinical symptoms was carried out, diagnostic value of various methods of examination in TP was shown. It was established, that in majority of cases conservative therapy with application of antituberculous preparations contributed to improvement of patients' condition.