نتایج جستجو برای: ado wn
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BACKGROUND The ductus arteriosus connects the main pulmonary trunk to the descending aorta. The incidence of isolated patent ductus arteriosus (PDA) in full-term infants is about 1 in 2000. The Amplatzer Ductal Occluder (ADO) is recommended for PDAs with sizes larger than 2 mm. In this procedure, we must confirm the ADO position in PDA by aortogram from the arterial line. The purpose of this st...
Albers-Schönberg disease, or autosomal dominant osteopetrosis, type II (ADO II), is the most common form of osteopetrosis, a group of conditions characterized by an increased skeletal mass due to impaired bone and cartilage resorption. Following the assignment of the gene causing ADO II to chromosome 16p13.3, we now report seven different mutations in the gene encoding the ClCN7 chloride channe...
To what extent hypoxia alters the adenosine (ADO) system and impacts on cardiac function during embryogenesis is not known. Ectonucleoside triphosphate diphosphohydrolase (CD39), ecto-5'-nucleotidase (CD73), adenosine kinase (AdK), adenosine deaminase (ADA), equilibrative (ENT1,3,4), and concentrative (CNT3) transporters and ADO receptors A1, A2A, A2B, and A3 constitute the adenosinergic system...
To characterize adenosine-mediated vascular responses, synthetic A1 and A2 receptor agonists (N-ethyl carboxamido adenosine [NECA], 2-chloro adenosine [2CA], or cyclohexyl adenosine [CHA]), the parent compound (adenosine [ADO]), an uptake inhibitor (dipyridamole [DIPYRID]) or a nonselective, competitive antagonist (8-phenyl theophylline [8pTHEO]) were topically applied to 20-60 microns arteriol...
Adenosine (ADO) acts as an inhibitory neuromodulator throughout the central and peripheral nervous system and can regulate seizure and nociceptive activity. However, the positive actions of systemically administered ADO are usually accompanied by undesirable side effects such as hypomobility and cardio-suppression. Adenosine kinase (AK) is the primary metabolic enzyme regulating intra- and extr...
Adenosine (ADO) is an inhibitory neuromodulator that can increase nociceptive thresholds in response to noxious stimulation. Inhibition of the ADO-metabolizing enzyme adenosine kinase (AK) increases extracellular ADO concentrations at sites of tissue trauma and AK inhibitors may have therapeutic potential as analgesic and anti-inflammatory agents. ABT-702 is a novel and potent (IC(50) = 1. 7 nM...
The ability of S-adenosyl-L-homocysteine (AdoHcy) to inhibit biologic transmethylation reactions in vitro has led us to explore the possibility of pharmacologically manipulating AdoHcy levels in vivo and examining the consequences of these alterations on the transmethylation of some biogenic amines. Swiss-Webster mice were injected intraperitoneally with different doses of adenosine (Ado) and D...
Chronic hypoxia (CHox) augments chemoafferent activity in sensory fibers innervating carotid body (CB) chemoreceptor type I cells; however, the underlying mechanisms are poorly understood. We tested the hypothesis that enhanced paracrine signaling via adenosine (Ado) A2b receptors is involved. Dissociated rat CB cultures were exposed for 24 h to normoxia (Nox, 21% O2) or CHox (2% O2) or treated...
Renal interstitial fibrosis (RIF) occurs as a result of chronic kidney disease (CKD) and is a common pathway leading to end-stage renal failure. Renal tissue hypoxia and ischemia are present during CKD. Adenosine (ADO) is an important signaling molecule induced under ischemic and hypoxic conditions. In the present study, the association between ADO and RIF was investigated using a mouse model, ...
The W locus of mice encodes the c-kit receptor tyrosine kinase. Heterozygous WJic/+ and Wn/+ mice and homozygous Wf/Wf mice were similar in appearance; all of them have large depigmented areas lacking any well-defined pattern. The WJic, Wn, and Wf mutant alleles were characterized and their molecular nature was correlated with the mast cell differentiation in the skin and the biologic features ...
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