Adenosine deaminase (ADA) isoenzymes ADA1 and ADA2 in biological fluids
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Adenosine deaminase (ADA) isoenzymes ADA1 and ADA2 in biological fluids.
We read with great interest the editorial by GAKIS [1] about the extreme importance of the adenosine deaminase (ADA) isoenzymes ADA1 and ADA2 on the homeostasis of 2' deoxyadenosine and adenosine, especially when monocytes and macrophages are infected by intracellular microorganisms. Serum ADA activity is increased in various conditions such as liver disease, tuberculosis, typhoid, infective mo...
متن کاملAdenosine deaminase (ADA) isoenzymes ADA1 and ADA2: diagnostic and biological role.
The isoenzymes ADA1 and ADA2 of the enzyme adenosine deaminase (ADA 3.5.4.4) deaminate mainly two nucleosides: adenosine and 2'deoxyadenosine, producing inosine and 2'deoxyinosine. Adenosine and 2'deoxyadenosine are molecules with many effects on human cells [1–4]. Thus, the homeostasis of these substances and the activity of the isoenzymes ADA1 and ADA2 in human cells are of extreme importance.
متن کاملP-142: Adenosine Deaminase Activity during Menses, Follicular and Luteal Phases of Menstrual Cycle
Background: In recent years, numerous regulators of gonadal function have been studied. Adenosine deaminase(ADA) is widely distributed throughout human tissues and may contribute in the regulation of menstrual cycle. The purpose of this study was to determine the plasma activities of total adenosine deaminase (ADAT), and its isoenzymes, ADA1 and ADA2, and ADA1/ADA2 ratio during the menses, foll...
متن کاملAdenosine deaminase in patients with primary immunodeficiency syndromes: the analysis of serum ADA1 and ADA2 activities.
OBJECTIVES We aimed to investigate the activity of ADA and its isoenzymes in serum of patients with various primary immunodeficiency (PID) syndromes. DESIGN AND METHODS Total ADA (tADA) and its isoenzymes were measured in 76 children with PID syndromes and 30 healthy controls using the Ellis method. RESULTS Our results indicated that tADA and ADA2 levels were higher in patients with Chronic...
متن کاملSerum adenosine deaminase: isoenzymes and diagnostic application.
Human adenosine deaminase (ADA; EC 3.5.4.4) consists of three isoenzymes: ADA1, ADA1+CP, and ADA2. We developed an electrophoretic technique to distinguish between these three isoenzymes. The isoenzyme pattern was studied in tissue and cell homogenates, as well as in serum from normal subjects and from patients with increased serum ADA who had either hepatitis, infectious mononucleosis, tubercu...
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ژورنال
عنوان ژورنال: European Respiratory Journal
سال: 1997
ISSN: 0000-0000,0903-1936
DOI: 10.1183/09031936.97.10092186