Clinical and diagnostic significance of activity of enzymes participating in endoergic reactions of patients systemic lupus erythematosus and systemic sclerosis

Abstract

Objective. To improve quality of diagnosis of systemic lupus erythematosus (SLE) and systemic sclerosis (SS). Material and methods. 30 pts with SLE and 30 with SS were included. Besides complex clinical, instrumental and laboratory examination activity and isoenzymes of succinate dehydrogenase (SDG), fumarate hydrase (FH), malate dehydrogenase (MDG), cytochrome oxidase (CO) were evaluated trice (at admission, after two weeks and at discharge) with original methods. 30 healthy persons were included in the control group. Results. SLE and SS pts had significant changes of energy metabolism enzymes depended on clinical features of the disease. Enzyme indices at minimal activity of SLE and SS were more informative than most of traditional laboratory tests. Comparative analysis of enzyme indices in SLE and SS pts revealed some features with along with clinical, instrumental and traditional laboratory data should be consider in diagnosis of these diseases. Enzyme indices correlated with changes of pts clinical state what allow to use them as criteria of treatment efficacy.

Keywords

• systemic lupus erythematosus
• systemic sclerosis
• succinate dehydrogenase
• fumarate hydrase
• malate dehydrogenase
• cytochrome oxidase