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Jenna Friedt et al.
Nucleic acids research, 42(6), 3857-3870 (2013-12-29)
Pseudouridine synthases introduce the most common RNA modification and likely use the same catalytic mechanism. Besides a catalytic aspartate residue, the contributions of other residues for catalysis of pseudouridine formation are poorly understood. Here, we have tested the role of
Jennifer L Kellie et al.
Biochemistry, 52(48), 8753-8765 (2013-10-31)
8-Oxoguanine (OG) is one of the most frequently occurring forms of DNA damage and is particularly deleterious since it forms a stable Hoogsteen base pair with adenine (A). The repair of an OG:A mispair is initiated by adenine-DNA glycosylase (MutY)
L H Voronkov et al.
Likars'ka sprava, (8)(8), 36-42 (2013-06-22)
The article presents data regarding links of I/D angiotensin-converting enzyme (ACE) gene polymorphism and structural changes in the myocardium and predictive value in chronic heart failure (CHF). We did not find association of I/D ACE gene polymorphism and structural changes
J P Casazza et al.
Alcohol and alcoholism (Oxford, Oxfordshire). Supplement, 1, 607-609 (1987-01-01)
Plasma 1,2-propanediol, D,L,-2,3-butanediol and 2,3-meso-butanediol were measured in 29 patients with biopsy proven alcoholic cirrhosis and 10 control subjects, none of whom had measurable blood alcohol levels. None of these compounds were present in control subjects at level above 5
Marco Flores-Méndez et al.
Toxicology letters, 229(1), 126-133 (2014-06-24)
Fluoride is an environmental pollutant present in dental products, food, pesticides and water. The latter, is the greatest source of exposure to this contaminant. Structural and functional damages to the central nervous system are present in exposed population. An established
Stefanie Ritz-Timme et al.
Ageing research reviews, 1(1), 43-59 (2002-06-01)
Aspartic acid racemization (AAR) represents one of the major types of non-enzymatic covalent modification that leads to an age-dependent accumulation of abnormal protein in numerous human tissues. In vivo racemization is an autonomic process during the "natural" ageing of proteins
Edi Erwan et al.
Life sciences, 109(1), 65-71 (2014-06-03)
L-Aspartate (L-Asp) and D-aspartate (D-Asp) are physiologically important amino acids in mammals and birds. However, the functions of these amino acids have not yet been fully understood. In this study, we therefore examined the effects of L-Asp and D-Asp in
Veronica H Flood et al.
Blood, 121(18), 3742-3744 (2013-03-23)
The diagnosis of von Willebrand disease (VWD) is complicated by issues with current laboratory testing, particularly the ristocetin cofactor activity assay (VWF:RCo). We have recently reported a sequence variation in the von Willebrand factor (VWF) A1 domain, p.D1472H (D1472H), associated
J K Nicholson et al.
The Biochemical journal, 217(2), 365-375 (1984-01-15)
Resonances for the ketone bodies 3-D-hydroxybutyrate, acetone and acetoacetate are readily detected in serum, plasma and urine samples from fasting and diabetic subjects by 1H n.m.r. spectroscopy at 400 MHz. Besides the simultaneous observation of metabolites, the major advantage of
Tamami Uejima et al.
Acta crystallographica. Section D, Biological crystallography, 69(Pt 3), 345-351 (2013-03-23)
Rab small GTPases regulate vesicle transport in eukaryotes by interacting with various effectors. Guanine nucleotide-exchange factor (GEF) catalyzes the transition from inactive GDP-bound Rab to active GTP-bound Rab. The existence of several GDP-bound intermediates containing the Arabidopsis thaliana Rab5 homologue
Oliver Wahl et al.
Journal of pharmaceutical and biomedical analysis, 102, 100-109 (2014-09-30)
Magnesium supplementation in form of organic magnesium salts is a very popular practice. We examined the enantiomeric purity of "Magnesium aspartate dihydrate" monographed in the European Pharmacopeia. A chiral capillary zone electrophoresis using (2-hydroxypropyl)-β-cyclodextrin coupled to laser induced fluorescence detection
Anna Walter et al.
Neurobiology of aging, 25(10), 1299-1303 (2004-10-07)
Experimental and clinical studies give evidence for breakdown of membrane phospholipids during neurodegeneration. In the present study, we measured the levels of glycerophosphocholine (GPCh), phosphocholine (PCh), and choline, that is, water-soluble metabolites of phosphatidylcholine (PtdCho), in human cerebrospinal fluid (CSF).
C Härnryd et al.
Psychopharmacology, 64(2), 131-134 (1979-08-08)
The effect of ECT on concentrations of monoamine metabolites in lumbar CSF of psychotic women with a schizophrenic symptomatology was examined. After a series of ECT there was a significant reduction of the concentration of the major noradrenaline metabolite, MOPEG.
J Szebeni et al.
Alcoholism, clinical and experimental research, 10(6), 647-650 (1986-12-01)
The level of conjugated dienes (CD) in the serum, conjugated linoleic acid isomer in the phospholipid fraction [18:2(9, 11)], and the fatty acid profile in both the serum and in the separated lipid classes were analyzed in current and previous
Sara Llufriu et al.
JAMA neurology, 71(7), 840-847 (2014-05-21)
Predicting disease evolution is becoming essential for optimizing treatment decision making in multiple sclerosis (MS). Multiple sclerosis pathologic damage typically includes demyelination, neuro-axonal loss, and astrogliosis. To evaluate the potential of magnetic resonance markers of central nervous system injury to
S Engelborghs et al.
Neurochemical research, 28(8), 1145-1150 (2003-07-02)
To study changes in amino acid metabolism and biogenic amines in Parkinson's disease, we set up a prospective study and measured biogenic amines, their main metabolites, and 22 different amino acids, in cerebrospinal fluid of Parkinson's disease patients (n =
Takashi Abe et al.
Journal of neuroscience research, 70(3), 447-450 (2002-10-23)
To investigate the possible role of oxidative RNA damage in the pathogenesis of Alzheimer's disease (AD), the concentrations of the oxidative stress marker 8-hydroxyguanosine (8-OHG) were measured in the cerebrospinal fluid (CSF) and the serum of patients with AD and
Przemyslaw Swiatkowski et al.
Biochemical and biophysical research communications, 433(3), 354-357 (2013-03-21)
In the pharynx of Caenorhabditis elegans, the accessory subunit MPS-4, homolog to human KCNE1, forms a complex with K(+) channel EXP-2 that terminates the action potential. An aspartate residue critical for KCNE1 function, asp76, is conserved in MPS-4 (asp74). Here
Prasanna M Bhende et al.
Journal of virology, 79(12), 7338-7348 (2005-05-28)
The Epstein-Barr virus (EBV) genome is highly methylated in latently infected cells. We recently reported that the EBV immediate-early (IE) protein BZLF1 (Z) preferentially binds to and activates transcription from the methylated form of the BRLF1 IE gene promoter (Rp).
Alexandra Deviers et al.
International journal of radiation oncology, biology, physics, 90(2), 385-393 (2014-08-12)
Because lactate accumulation is considered a surrogate for hypoxia and tumor radiation resistance, we studied the spatial distribution of the lactate-to-N-acetyl-aspartate ratio (LNR) before radiation therapy (RT) with 3D proton magnetic resonance spectroscopic imaging (3D-(1)H-MRSI) and assessed its impact on
G Halperin et al.
Journal of chromatography. B, Biomedical sciences and applications, 742(2), 345-352 (2000-07-20)
We developed a method for the determination of serum 5alpha-cholestan-3beta-ol (cholestanol). The sterols were derivatized to the 4'-bromobenzenesulfonyl esters and heated in isopropanol. The cholesterol-4'-bromobenzenesulfonate was solvolyzed to cholesteryl isopropyl ether, but the derivatized cholestanol did not change and could
Susumu Ohtani et al.
Journal of forensic sciences, 50(5), 1020-1027 (2005-10-18)
The estimation of chronological age has been performed by various methods in forensic science. Among these, racemization methods, which are based on the age-dependent non-enzymatic changes of L-form amino acids to D-form mainly using aspartic acid, are one of the
Xian-En Zhao et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 995-996, 15-23 (2015-05-30)
Multi-analytes simultaneous monitoring of amino acid and monoamine neurotransmitters (NTs) has important scientific significance for their related pathology, physiology and drug screening. In this work, in virtue of a mass spectrometry sensitizing reagent 10-ethyl-acridone-3-sulfonyl chloride (EASC) as derivatization reagent, an
Michaela M Kraus et al.
Life sciences, 102(1), 49-54 (2014-03-13)
Thalamostriatal fibers are involved in cognitive tasks such as acquisition, learning, processing of sensory events, and behavioral flexibility and might play a role in Parkinson's disease. The aim of the present study was the in vivo electrochemical characterization of the
Bram Baert et al.
Bioorganic & medicinal chemistry, 15(22), 6943-6955 (2007-09-11)
A set of 116 structurally very diverse compounds, mainly drugs, was characterized by 1630 molecular descriptors. The biological property modelled in this study was the transdermal permeability coefficient logK(p). The main objective was to find a limited set of suitable
Xiaoyang Guan et al.
Organic letters, 15(24), 6128-6131 (2013-11-26)
Human galanin-like peptide (hGALP) is a newly discovered hypothalamic peptide that plays important roles in the regulation of food intake and energy balance. Here, we demonstrate that the aspartic acid ligation can be employed to achieve an efficient synthesis of
Carl H Rose et al.
Obstetrics and gynecology, 104(5 Pt 1), 1011-1014 (2004-11-02)
We reviewed the impact of intravenous high-dose corticosteroid administration for preterm hemolysis, elevated liver enzymes, low platelets (HELLP) syndrome on vaginal delivery rate and degree of clinically significant thrombocytopenia. Retrospective analysis of 1991-2000 HELLP syndrome (platelets < 100,000/uL, lactate dehydrogenase
Renty B Franklin et al.
BMC biochemistry, 7, 10-10 (2006-03-29)
Prostate epithelial cells accumulate a high level of aspartate that is utilized as a substrate for their unique function of production and secretion of enormously high levels of citrate. In most mammalian cells aspartate is synthesized; and, therefore is a
T M Kuvaeva et al.
Prikladnaia biokhimiia i mikrobiologiia, 49(2), 155-163 (2013-06-26)
The genes encoding putative L-aspartate dehydrogenases (EC 1.4.1.21, ADH) from the mesophilic nitrogen-fixing bacteria Rhodopseudomonas palustris and Bradyrhizobium japonicum were cloned and expressed in Escherichia coli. The respective enzymes in the form of hybrid proteins with N-terminal hexahistidine tags were
David S Wishart et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 871(2), 164-173 (2008-05-27)
With continuing improvements in analytical technology and an increased interest in comprehensive metabolic profiling of biofluids and tissues, there is a growing need to develop comprehensive reference resources for certain clinically important biofluids, such as blood, urine and cerebrospinal fluid
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