Studies have been conducted with the arginase (l-arginine amidinohydrolase, EC 3.5.3.1) of two legumes: jack bean, Canavalia ensiformis (L.) DC., a l-canavanine-containing plant and soybean, Glycine max, a canavanine-free species. Analyses of the arginase obtained from gradient-purified mitochondria of these legumes revealed that the arginine-dependent (ADA) and canavanine-dependent activities ...

We evaluated the influence of amifostine used alone or in combination with 2-chlorodeoxyadenosine (2-CdA) on the colony growth of normal and chronic myeloid leukemia (CML) granulocyte-macrophage progenitor cells (CFU-GM) in semisolid culture in vitro. Amifostine at a concentration of 1 mg/ml was either added directly to the culture medium of normal and CML CFU-GM, or mononuclear cells (MNCs) we...

Cytosine deaminase (CDA) from E. coli is a member of the amidohydrolase superfamily. The structure of the zinc-activated enzyme was determined in the presence of phosphonocytosine, a mimic of the tetrahedral reaction intermediate. This compound inhibits the deamination of cytosine with a K(i) of 52 nM. The zinc- and iron-containing enzymes were characterized to determine the effect of the dival...

As part of the Discourse Approaches to Politics, Society and Culture series, this volume mainly introduces the interdisciplinary and multi-methodological character of (critical) discourse analysis (CDA). Some of the contributions were further developed through discussion at the workshop on ‘New Agenda in CDA’ that was convened in 2003 at the University of Vienna. The intention of the editors wa...

BACKGROUND AND OBJECTIVE It has been widely demonstrated that one single 7-day course continuous infusion (c.i.) 2-chlorodeoxyadenosine (2-CdA) at a dose of 0.1 mg/kg daily is dramatically effective in inducing high and prolonged complete remission (CR) rates in patients with hairy-cell leukemia (HCL). However, 2-CdA administration often results in severe neutropenia and lymphocytopenia both re...

SEC23B gene encodes an essential component of the coat protein complex II (COPII)-coated vesicles. Mutations in this gene cause the vast majority the congenital dyserythropoietic anemia Type II (CDA II), a rare disorder resulting from impaired erythropoiesis. Here, we investigated 28 CDA II patients from 21 unrelated families enrolled in the CDA II International Registry. Overall, we found 19 n...

Although 2-chlorodeoxyadenosine (2-CdA) is effective in inducing complete remissions (CRs) in the majority of patients with hairy cell leukemia (HCL), neither the actual relapse rate, the clinical factors that may predict relapse, the long-term outcome, nor the response rate to re-treatment at relapse has been clearly determined. Fifty-two consecutive patients with previously untreated or treat...

It is difficult to understand students’ social practices from artifacts of anonymous online postings. The analysis of text genres and discursive types of online postings has potential for enhancing teaching and learning experiences of students. This article focuses on analysis of students’ anonymous online postings using Critical Discourse Analysis (CDA). The article argues that social practice...

Fungal infections are an important cause of morbidity and mortality in immunocompromised patients. Amphotericin B (AMB), with broad-spectrum antifungal activity, has long been recognized as a powerful fungicidal drug, but its clinical toxicities mainly nephrotoxicity and poor solubility limit its wide application in clinical practice. The fungal metabolism along with the host immune response us...

AIM To evaluate cladribine [2-chlorodeoxyadenosine (2-CdA)] therapy in refractory celiac disease (RCD) II. METHODS An open-label cohort-study of RCD II patients treated with 2-CdA was performed between 2000 and 2010. Survival rate, enteropathy associated T-cell lymphoma (EATL) occurrence, clinical course, and histological and immunological response rates were evaluated. RESULTS Overall, 32 ...