[Possibilities of retention of work capacity in patients with Parkinson's disease].

Aim: To study the efficacy of replacement of the single daily dose of two-component levodopa by three-component levodopa in work capable patients with Parkinson's disease with motor fluctuations during the most active working hours.

Material And Methods: The study included 157 patients from 19 Russian centers specialized in extrapyramidal pathology. The period of highest working activity was analyzed in all patients.

[Ophthalmic manifestations of Huntington's disease].

Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder caused by a mutation in the huntingtin gene. The whole nervous system, including visual analyzer, is involved in the pathogenesis of the disease. Various ocular sings can be found in both preclinical and clinical stages of HD.

[Polyneuropathy of thin fibers].

Polyneuropathy of thin fibers (PTF) is a disorder with selective damage of Aδ- and C-fibers. Having a skin biopsy the SFN became visible. In the article there are data on the pathogenesis, clinics and diagnostics of the PTF.

Discrete character of the development of the photosynthetic apparatus in greening barley leaves.

Biogenesis of the photosynthetic apparatus in greening etiolated leaves of barley (Hordeum vulgare L) was investigated by an approach permitting investigation of this process under conditions that minimize differences in plastid development. Distributions of barley leaves greening for 24 h as to chlorophyll content and of chloroplast grana as to number of thylakoids were shown to be of a multimodal character. The shape of time-course curves of chlorophyll accumulation in local sites of greening etiolated leaves was of a stepped or (at the end of greening) undulated character.