[Some aspects of macular degeneration pathogenesis].

Molecular dehydration is a polyetiologic hereditary determinatory disease. Variation in the lipid exchange balance resulting in microcirculation disturbance play an important role in the pathogenesis of molecular dehydration. Free radical damages in retina, synthesis activation of nitrogen oxide and cytokines output cause protein synthesis of apoptosis. Disturbances in apoptosis lead to molecular dehydration. Study of pathogenesis links of molecular dehydration gives the possibility to treat this disease.

[Fatty acid constitution of the lachrymal fluid in healthy subjects and in patients with ophthalmopathology].

The relative content of higher fatty acids (FA) was studied in lachrymal fluid of 10 virtually healthy subjects and of 9 patients with maculodystrophy aged 30 to 40. The FA methyl ethers were assayed with the "Chrystall-2000 M" gas chromatograph. The content of C(15:0), C(15:1), C(16:0) and C(16:1) as well as the content of such oversaturated FA as C(18:3omega6) and C(20:4omega6) was found to be decreased in patients with macoludystrophy. Simultaneously, a higher level of FA with a longer carbon chain (C(17:0), C(18:0), C(18:1), C(18:3omega3) and C(20:3omega6) was registered in these patients. The results testify to changes in the composition of lachrymal fluid in ophthalmopathy and point out the expedience of further research in the discussed field.