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Página 1 desde 53 resultados
The cytidine triphosphate: cholinephosphate cytidylyltransferase of normal and degenerating peripheral nerve: a study of its activation by phospholipids.
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Biosynthesis of lecithin in brain and degenerating nerve; participation of cytidine diphosphate choline.
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Cytidine deaminase activity in abnormal pregnancy.
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OBJECTIVE
To determine the usefulness of cytidine deaminase (CTD) activity in the prediction of abnormal pregnancy and the prognosis of fetal outcome.
METHODS
The CTD activities in 367 pregnant women and 17 placentas and their cord sera were determined. The CTD activity was estimated to determine
Aberrant activation-induced cytidine deaminase expression is associated with mucosal intestinalization in the early stage of gastric cancer.
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Although Helicobacter pylori is a risk factor for gastric cancer (GC), its detailed carcinogenesis remains unclear. Recently, aberrant expression of activation-induced cytidine deaminase (AID) was demonstrated in gastric epithelium with H. pylori infection and seems to cause the accumulation of
Early stimulation of phosphatidylcholine biosynthesis during Wallerian degeneration of rat sciatic nerve.
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Phospholipid metabolism was studied in rat sciatic nerve during Wallerian degeneration induced by crush injury. Portions of crushed sciatic nerve, incubated with labeled substrates, showed significantly higher phosphatidylcholine synthesis than normal nerve, prior to any measurable alterations of
[Spinal subacute combined degeneration after intrathecal chemotherapy. Report of two cases].
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Intrathecal chemotherapy may be complicated with the development of myelopathies or toxic radiculopathies. This myeloradicular involvement, of toxic character, is unpredictable, since these patients have repeatedly received Intrathecal chemotherapy with the same drugs without apparent injury. The
Molecular cloning and characterization of the Plasmodium falciparum cytidine triphosphate synthetase gene.
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Using degenerate oligonucleotides derived from conserved amino acid regions of cytidine triphosphate synthetase, a fragment of the gene from the malarial parasite, Plasmodium falciparum, was isolated by polymerase chain reaction (PCR). This fragment was used as a probe in the isolation of genomic
Two efficiency elements flanking the editing site of cytidine 6666 in the apolipoprotein B mRNA support mooring-dependent editing.
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Normally, apolipoprotein B (apoB) mRNA editing deaminates a single cytidine (C6666) in apoB mRNA. However, when the catalytic subunit of the editing enzyme complex, APOBEC-1, was overexpressed in transgenic mice and rabbits, numerous cytidines in the apoB mRNA and in a novel mRNA, NAT1, were
Therapeutic effect of orally applied cytidine diphosphate choline in mild and severe degrees of normobaric and normocapnic degrees of hypoxia of rats.
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Eighty Wistar rats were maintained under conditions of chronic hypoxic for a period of 5 months. After gradual adaptation to the reduced oxygen content of the inhaled air, animals were kept on the levels of 15, 12, 10 and 7 vol% O2 and their behaviour in an open field was observed. One group of 40
Quantitation of cytidine-5'-monophospho-N-acetylneuraminic acid in human leukocytes using LC-MS/MS: method development and validation.
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The biosynthesis of sialic acid (Neu5Ac) leads to the intracellular production of cytidine-5'-monophospho-N-acetylneuraminic acid (CMP-Neu5Ac), the active sialic acid donor to nascent glycans (glycoproteins and glycolipids) in the Golgi. GNE myopathy is a rare autosomal recessive muscular disease
Enhanced expression of activation-induced cytidine deaminase in human gastric mucosa infected by Helicobacter pylori and its decrease following eradication.
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BACKGROUND
Recent studies have shown important roles for activation-induced cytidine deaminase (AID), an intrinsic genome mutator, in H. pylori-associated gastric cancer development. Here, we evaluated the relationship between H. pylori-induced gastritis and AID expression from human biopsy
The solution structure and internal motions of a fragment of the cytidine-rich strand of the human telomere.
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We present the solution structure of d(CCCTA2CCCTA2CCCTA2CCCT), a fragment of the vertebrate telomere which folds intramolecularly. The four cytidine stretches form an i-motif which includes six intercalated C.C+ pairs and terminates with the cytidines at the 5' extremity of each stretch. Above, the
Acetylcholine precursor, citicoline (cytidine 5'-diphosphocholine), reduces hypoglycaemia-induced neuronal death in rats.
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Citicoline (cytidine 5'-diphosphocholine) is an important precursor for the synthesis of neuronal plasma membrane phospholipids, mainly phosphatidylcholine. The administration of citicoline serves as a choline donor for the synthesis of acetylcholine. Citicoline has been shown to reduce the neuronal
Purification, cloning, and expression of a cytidine 5'-monophosphate N-acetylneuraminic acid synthetase from Haemophilus ducreyi.
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An N-acetylneuraminic acid cytidylyltransferase (EC 2.7.7.43) (CMP-NeuAc synthetase) was isolated from a Haemophilus ducreyi strain 35000 cell lysate and partially characterized. The enzyme catalyzes the reaction of CTP and NeuAc to form CMP-NeuAc, which is the nucleotide sugar donor used by
Epigenetic mechanisms underlying cardiac degeneration and regeneration.
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Epigenetic modifications which are defined by DNA methylation, histone modifications and microRNA mediated gene regulation, have been found to be associated with cardiac dysfunction and cardiac regeneration but the mechanisms are unclear. MicroRNA therapies have been proposed for cardiac
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