[Interneuronal interrelationships in autonomic ganglia (the ultrastructural aspects)]. / Mezhneironnye vzaimootnosheniia v vegetativnykh gangliiakh (ul'trastrukturnye aspekty).

Ultrastructural and immunocytochemical results of studies on interneuronal relationship in vegetative ganglia were represented. Age-related changes of synapses (appearance of synaptic type vesicles and smooth endoplasmic reticulum cisterns in postsynaptic terminals), peculiarities of interneuronal links in neurons containing neuropeptide Y and NO-synthase and structural manifestations of non-synaptic interneuronal links were shown. Modern views on interneuronal communications were discussed.

[Nitric oxide synthase in neuroepithelial brain tumors]. / Sintaza okisi azota v neiroépitelial'nykh opukholiakh golovnogo mozga.

Immunohistochemical investigation of NO-synthase in brain astrocytic tumors revealed intense reaction in many tumor cells as well as direct correlation in the intensity of reaction and the degree of tumor anaplasia. Grade I astrocytomas did not show immunoreactivity in contrast to high anaplastic tumors where many cells had positive reaction with a different degree of intensity. Positive immunoreaction was shown in many giant cells. Small cell glioblastomas and oligodendrogliomas were immunonegative. There was a direct correlation between NO-synthase expression and glial fibrillar acidic protein.