[Morphological characteristics of actinomycotic dacryocanaliculitis].

The paper presents the results of pathohistological studies of the contents of the lacrimal canaliculi and the fragments of their walls, obtained at canaliculotomy in 25 patients. This permitted 14 cases of actinomycotic dacryocanaliculitis to be identified as drusens of the ray fungus Actinomyces israelii had been found. The reactive structural changes found in the wall of the lacrimal canaliculi due to the presence of fungal infection and foreign bodies in their lumen are described.

[Involvement of lacrimal organs in Wegener's granulomatosis].

Wegener's granulomatosis (WG) is a primary systemic vasculitis characterized by the development of granulomatous inflammation and necrotizing vasculitis of small- and middle-sized vessels. The clinical symptoms of the involvement of lacrimal organs in WG are of no specificity. Lacrimal tract lesion is encountered in prolonged Wegener's granulomatosis.

[Morphological features of the mucosa of the nasal cavity and lacrimal sac in lacrimal passage obstruction].

A comprehensive morphological study of the mucosa of the nasal cavity and lacrimal sac was conducted, by using 160 biopsy specimens taken from 44 patients at endoscopic endonasal dacryocystorhinostomy. In all cases, different areas of the nasal cavity exhibited abnormal changes that were generalized and appeared as inflammatory, dystrophic, and sclerotic processes.

[Lactase deficiency in children of the first year of life].

In the article the new aspects of development of lactose malabsorbtion at children of the first year of life are resulted. The oligosaccharides and glycosydases of female milk have the certain importance in development of this pathology.

[Medical and biological assessment of genetically modified corn line MON 810 resistant to European corn borer and line GA 21 resistant to glyphosate: a chemical study].

Chemical analysis of genetically modified corns MON 810 resistance to European corn borer and GA 21 tolerance to glyphosphate was performed. Results of these studies showed that there is no difference between genetically modified and conventional corn products.