Progressive Scoliosis and Syringomyelia - Questions of Surgical Approach.

Background: The rate of scoliosis in syringomyelia patients ranges from 25 to 74.4%. In turn, syringomyelia occurs in 1.

[Glio-neuronal and glio-glial syncytial cytoplasmic connections in peripheral nerve trunks of the crayfish Astacus leptodactylus].

The paper considers various aspects of glial sheaths of neuritis in the crayfish peripheral nerve trunks and roots. There are revealed dotted glio-neurite tight junctions and a varicose deformation of the intercellular glio-neurite cleft. Rupture of membranes in the area of contact leads to formation of the glio-neurite pore (less than 10 nm) that is enlarged and forms wide (up to 240 nm) syncytial perforations.

Use of functional tests to increase the efficiency of scoliosis screening diagnosis by COMOT method.

COMOT technique was developed at Novosibirsk Research Institute of Traumatology and Orthopaedics as a pilot study in 1997 was used for screening for spine deformities in schoolchildren in Novosibirsk, Omsk and Moscow. Topographic screening was performed with patient standing in his natural free and easy posture. The criteria for scoliosis detection was an angle of lateral asymmetry (LA), calculated on the basis of topographic data, which was an analogue of Cobb angle.

[The glioneuronal interrelations in the nervous system of the crayfish].

The glio-neuronal interrelations in the nerves, connective and ganglia were studied in the crayfish Astacus leptodactylus as a representative of invertebrates. The outer membranes of the ganglia, connectives and nerves are formed by specialized cells with morphological features of the loose connective tissue cells. In the ganglia between the outer membrane and the neuropile there is another type of the connective tissue cells--Leydig's 1st type cells.

[The genesis and reactive changes of mitochondria at different functional phases of the cell].

At ultrastructural level ways of formation and proliferation of mitochondria have been followed in rat lutein cells and interstitial endocrine cells of the corpus luteum at various stages of its development. During mitosis and at increased function of the lutein and interstitial cells mitochondria are formed de novo. At a certain change of the cell functional state, mitochondria proliferate by means of division or budding.

[Ultrastructural organization of the gastric ganglion in the crayfish].

Anatomy of the gastric ganglion in the stomatogastric region of the vegetative nerve system has been studied in Astacus astacus at light optic and ultrastructural levels. Topography, neuroglial and interneuronal relationships of its elements have been described. Various types of synapses of the ganglionic neuropil have been described.

[Effect of large doses of progesterone on pregnancy, lactation and morphology of the corpora lutea].

Cells of the corpora lutea of albino rats were examined histochemically after the administration of high perogesteron doses at various periods of pregnancy and lactation. Before the prepartum exogenous progesteron failed to influence the fetal development, during the prepartum--led to prolongation of the periods of pregnancy, and by the 25th day--to the intrauterine death of the fetuses in 100% of cases. Progesteron administration during the lactation increased the lactic acid function.