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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
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
Patient and tumor characteristics and BRAF and KRAS mutations in colon cancer, NCCTG/Alliance N0147.
Wilson I Gonsalves et al.
Journal of the National Cancer Institute, 106(7), doi:10-doi:10 (2014-06-14)
KRAS and BRAF (V600E) mutations are important predictive and prognostic markers, respectively, in colon cancer, but little is known about patient and clinical factors associated with them. Two thousand three hundred twenty-six of 3397 patients in the N0147 phase III
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
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
S K Goergen et al.
Clinical radiology, 69(1), 72-81 (2013-11-12)
To compare diffusion-weighted imaging (DWI) and non-DWI magnetic resonance imaging (MRI), proton MR spectroscopy (1H-MRS), and clinical biomarkers for prediction of 2 year developmental outcome in term infants with perinatal hypoxic-ischaemic encephalopathy (HIE). Nineteen infants ≥36 weeks gestation with HIE
E Vezzoli et al.
Cerebral cortex (New York, N.Y. : 1991), 30(4), 2114-2127 (2019-12-07)
Long-term memory formation (LTM) is a process accompanied by energy-demanding structural changes at synapses and increased spine density. Concomitant increases in both spine volume and postsynaptic density (PSD) surface area have been suggested but never quantified in vivo by clear-cut
Eran Mick et al.
eLife, 9 (2020-05-29)
Mitochondrial dysfunction is associated with activation of the integrated stress response (ISR) but the underlying triggers remain unclear. We systematically combined acute mitochondrial inhibitors with genetic tools for compartment-specific NADH oxidation to trace mechanisms linking different forms of mitochondrial dysfunction
Rachael M Giersch et al.
Bio-protocol, 7(18) (2017-10-31)
Genome manipulation has become more accessible given the advent of the CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) editing technology. The Cas9 endonuclease binds a single stranded (single guide) RNA (sgRNA) fragment that recruits the complex to a corresponding genomic
Aleksandra Agapova et al.
eLife, 8 (2019-02-01)
Bacterial metabolism is fundamental to survival and pathogenesis. We explore how Mycobacterium tuberculosis utilises amino acids as nitrogen sources, using a combination of bacterial physiology and stable isotope tracing coupled to mass spectrometry metabolomics methods. Our results define core properties
Jing-Li Gan et al.
Psychiatry research, 223(1), 23-27 (2014-05-17)
Early onset schizophrenia (EOS) is often associated with poorer outcomes, including lack of school education, higher risk of mental disability and resistance to treatment. But the knowledge of the neurobiological mechanism of EOS is limited. Here, using proton magnetic resonance
Hunter Cuchiaro et al.
Journal of agricultural and food chemistry, 67(19), 5672-5679 (2019-04-25)
The analysis of protein in algal biomass is one of the most critical areas of commercial development of algae characterization for nutritional or other high value applications. A new rapid and accurate method is required that can be widely implemented
E R Waite et al.
Forensic science international, 103(2), 113-124 (1999-09-11)
Accurate age determination of adult cadavers and human remains is a key requirement in forensic practice. The current morphological methods lack accuracy and precision, require specialist training and are costly. The use of aspartic acid racemization (AAR) in human dentine
Xin Yang et al.
Annals of neurology, 75(4), 492-507 (2013-11-19)
Hypoglycemia is a common adverse event and can injure central nervous system (CNS) white matter (WM). We determined whether glutamate receptors were involved in hypoglycemic WM injury. Mouse optic nerves (MON), CNS WM tracts, were maintained at 37°C with oxygenated
Roger F Butterworth
Metabolic brain disease, 17(4), 221-227 (2003-02-27)
Results of neuropathologic, spectroscopic, and neurochemical studies continue to confirm a major role for ammonia in the pathogenesis of the central nervous system complications of both acute and chronic liver failure. Damage to astrocytes characterized by cell swelling (acute liver
Zhongli Yang et al.
Neuroscience letters, 555, 215-219 (2013-10-01)
Recently, we reported that several polymorphisms and haplotypes in the choline acetyltransferase gene (ChAT) are associated with nicotine dependence (ND). Of them, SNP rs1880676 is of particular interest because: (1) it is a non-synonymous variant located in the coding region
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)
Chih-Ping Yang et al.
Anesthesia and analgesia, 117(6), 1493-1502 (2013-11-22)
Glutamate homeostasis and microglia activation play an important role in the development and maintenance of neuropathic pain. We designed this investigation to examine whether ultra-low dose naloxone administered alone or in combination with morphine could alter the concentration of the
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
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
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 =
Giles S Kendall et al.
Radiology, 271(1), 230-238 (2014-01-31)
To determine (a) whether diffuse white matter injury of prematurity is associated with an increased choline (Cho)-to-creatine (Cr) ratio and a reduced N-acetylaspartate (NAA)-to-Cho ratio and whether these measures can be used as biomarkers of outcome and (b) if changes
K J Bär et al.
Neurobiology of aging, 24(2), 333-338 (2002-12-25)
Increasing evidence suggests an interaction of oxidative stress and the formation of advanced glycation end products (AGE) in the onset and progression of Alzheimer's disease. We studied levels of pentosidine and N(epsilon)-(carboxymethyl)-lysine (CML) in serum and cerebrospinal fluid (CSF) of
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
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).
The pharmacologic modulation of 5-fluorouracil with folinic acid, methotrexate, trimetrexate, and n-phosphonacetyl-l-aspartic acid (PALA). Mechanisms of the interactions and clinical data.
D Machover
Bulletin du cancer, 81 Suppl 2, 74s-77s (1994-12-01)
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
Ahmad Farooq et al.
American journal of physiology. Gastrointestinal and liver physiology, 307(7), G732-G740 (2014-08-12)
Activation of the cytosolic inflammasome machinery is responsible for acute and chronic liver inflammation, but little is known about its regulation. The N-methyl-d-aspartate (NMDA) receptor families are heterotetrameric ligand-gated ion channels that are activated by a range of metabolites, including
N Andres Parra et al.
International journal of radiation oncology, biology, physics, 90(2), 376-384 (2014-07-30)
Magnetic resonance (MR) imaging and computed tomography (CT) are used almost exclusively in radiation therapy planning of glioblastoma multiforme (GBM), despite their well-recognized limitations. MR spectroscopic imaging (MRSI) can identify biochemical patterns associated with normal brain and tumor, predominantly by
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