Effect of adenosine deaminase inhibition upon human lymphocyte blastogenesis.

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Effect of adenosine deaminase inhibition upon human lymphocyte blastogenesis.

The biochemical mechanisms by which a genetically determined deficiency of adenosine deaminase leads to immunodeficiency are still poorly understood and prompted this study. We have examined the effects of the adenosine deaminase inhibitor erythro-9-(2-hydroxy-3-nonyl) adenine hydrochloride (EHNA) upon the response of human peripheral blood mononuclear cells to the mitogen concanavalin A (Con A...

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The effect of physiological concentrations of caffeine (purified from Persian tea) on adenosine deaminase (ADA) activity at physiological and pathological concentrations of adenosine (as substrate) in 50 mM Tris-HCl buffer (pH 7.3) at 37°C was investigated, using UV-VIS spectroscopy. ADA exhibited a bi-phasic activity behavior and both phases showed positive cooperativities indicating adenosine...

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Monocyte-mediated inhibition of lymphocyte blastogenesis in Hodgkin disease.

Mononuclear leukocytes isloated from the blood of previously treated patients with advanced active Hodgkin disease contained high concentrations of monocytes and showed poor lymphocyte blastogenesis to mitogens. In five of eight patients with disseminated disease, blastogenesis became normal or improved markedly when the leukocyte suspensions were depleted of monocytes before culture. Addition ...

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ژورنال

عنوان ژورنال: Journal of Clinical Investigation

سال: 1976

ISSN: 0021-9738

DOI: 10.1172/jci108278