Agropine-type rolA modulates ROS homeostasis in an auxin-dependent manner in rolA-expressing cell cultures of Rubia cordifolia L.

Long-term cultured calli may experience a biosynthetic shift due to the IAA-dependent expression of the rolA gene, which also affects ROS metabolism. The "hairy root" syndrome is caused by the root-inducing Ri-plasmid of Rhizobium rhizogenes, also known as Agrobacterium rhizogenes. The Ri-plasmid contains genes known as rol genes or root oncogenic loci, which promote root development.

In the interkingdom horizontal gene transfer, the small rolA gene is a big mystery.

The biological function of the agrobacterial oncogene rolA is very poorly understood compared to other components of the mechanism of horizontal gene transfer during agrobacterial colonization of plants. Research groups around the world have worked on this problem, and available information is reviewed in this review, but other rol oncogenes have been studied much more thoroughly. Having one unexplored element makes it impossible to form a complete picture.

[Synthesis of amino analogues of cholic acid].

Amino analogues of cholic acid were synthesized by reduction of oximes with combination of titanium(III) chloride and sodium cyanoborohydride.

[Description of shift team workers health in north districts of Tomskaya Oblast].

In northern regions of Siberia, chronic stress induced by north geophysical and climate living conditions, under additional impact of social and technological negative factors transform first into prepathologic and then into pathologic states. At these conditions, even in younger people exhaustion of reserve possibilities of body occurs very drastically. Due to cause mentioned above, in northern shift team workers chronic diseases develop in younger age.

[The epidemiological patterns of endocrine system pathology in north areas of Siberia].

Epidemiological study of endocrine system pathology in north areas of Russia was carried out. Major regional factor in Siberia north areas is higher occurrence of thyroid pathology caused by iodine deficiency in water and food. Prevention of this disease is one of most relevant problems in these areas.

[Feasibilities of cytological diagnosis in the static telepathology mode].

Results of cytological diagnosis in the static telepathology mode are analyzed. Three expert cytologists made the diagnosis on the basis of images of cytological preparations obtained from 94 patients with tumors of soft tissues and bones. A total of 113 diagnoses were correct: benign or malignant type of the tumor and its histological type were identified.

[Changes in the glial condition in different sections of the rat brain after stopping the systemic circulation].

The effect of ischemia on the expression of GFAP in astrocytes of cerebrum, hippocampus and cerebellum was studied on rat clinical death model. Cardiac arrest was induced by 10-or 15-min intrathoracic compression of the heart vascular bundle. Immunohistochemical staining showed that GFAP immunoreactivity significantly increased in the white matter, and GFAP-expressing astrocytes appeared in the gray matter.

[Changes in the number of Ec cells in the small intestine and the serotonin level in the blood plasma of fasting rats].

A study was made of the amount of Ec-cells in the small intestine mucosa and blood plasma serotonin of rats in health and fasting. It was established that 24 hours after food deprivation the amount of Ec-cells rises approximately 2-fold as compared with control. The cells demonstrate the intensification of the argentaffin reaction.

[Enterochromaffin cells of the intestinal mucosa during long-term parenteral and intragastric feeding].

The authors studied the response of enterochromaffin cells (Ec-cells) of the duodenal mucosa of rats during parenteral and intragastric administration of food mixtures containing a fatty emulsion venolipid (Japan) and of food mixtures containing no fat. The food mixture was administered round the clock, uniformly throughout 15 days. The Ec-cells were detected by the argentaffinity method modified by Phontane .

[Cytological variants of lymphogranulomatosis].

It is shown that in the course of a cytological investigation it was possible not only to diagnose lymphogranulomatosis but in the overwhelming majority of cases to determine a morphological variant of the disease in accordance with Lukes et al. classification. Cytological pictures of the three histological variants of lymphogranulomatosis are described: mixed-cellular, reticular and nodular sclerosis.