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Yazmin Macotela et al.
PloS one, 6(6), e21187-e21187 (2011-07-07)
Environmental factors, such as the macronutrient composition of the diet, can have a profound impact on risk of diabetes and metabolic syndrome. In the present study we demonstrate how a single, simple dietary factor--leucine--can modify insulin resistance by acting on
Seok-Min Kang et al.
Clinical biochemistry, 44(4), 293-299 (2010-12-21)
We sought to identify metabolic pathways characterizing human heart failure (HF) using ¹NMR based urinary metabolomic analysis in conjunction with multivariate statistics. Patients with systolic HF of ischemic origin (n=15) and healthy controls (n=20) participated in this study. Patients with
Jean Jitomir et al.
Journal of medicinal food, 11(4), 606-609 (2008-12-05)
As obesity rates continue to climb, there is a pressing need for novel weight loss techniques. However, the energy-restricted diets recommended for weight loss typically result in significant amounts of lean tissue loss, in addition to the desired body fat
Luc J C van Loon
Current opinion in clinical nutrition and metabolic care, 15(1), 71-77 (2011-11-01)
Amino acids do not merely represent precursors for de-novo protein synthesis, but also function as nutritional signals regulating various metabolic processes. In fact, ample evidence has been generated to show that various tissues respond to changes in amino acid availability
Florian Veillard et al.
Biological chemistry, 393(12), 1471-1476 (2013-05-15)
Bestatin, a specific inhibitor of metalloaminopeptidases,inhibits the growth of Porphyromonas gingivalis. To identify its target enzyme, a library of fluorescent substrates was used but no metalloaminopeptidase activity was found. The aminopeptidase activity of P. gingivalis was bestatin-insensitive and directed exclusively
Guohua Yang et al.
The Journal of general virology, 94(Pt 12), 2599-2608 (2013-09-03)
An avian-like H3N2 influenza A virus (IAV) has recently caused sporadic canine influenza outbreaks in China and Korea, but the molecular mechanisms involved in the interspecies transmission of H3N2 IAV from avian to canine species are not well understood. Sequence
Major clinical response to a BRAF inhibitor in a patient with a BRAF L597R-mutated melanoma.
Philippe Bahadoran et al.
Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 31(19), e324-e326 (2013-05-30)
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
Kevin Guo et al.
Analytical chemistry, 81(10), 3919-3932 (2009-03-25)
We report a new quantitative metabolome profiling technique based on differential (12)C-/(13)C-isotope dansylation labeling of metabolites, fast liquid chromatography (LC) separation and electrospray ionization Fourier-transform ion cyclotron resonance mass spectrometry (ESI-FTICR MS) detection. An isotope reagent, (13)C-dansyl chloride, can be
M Sakamoto et al.
The Journal of clinical endocrinology and metabolism, 56(1), 202-204 (1983-01-01)
Recent studies on the nucleotide sequence of cloned DNA complementary to mRNA for preproenkephalin from bovine adrenal medulla and human pheochromocytoma have revealed that this precursor molecule contains four copies of methionine-enkephalin (Met-Enk) and one copy each of leucine-enkephalin (Leu-Enk)
Stefanie R Mullins et al.
Biological chemistry, 393(12), 1405-1416 (2013-05-15)
The expression of the cysteine protease cathepsin B is increased in early stages of human breast cancer.To assess the potential role of cathepsin B in premalignant progression of breast epithelial cells, we employed a 3D reconstituted basement membrane overlay culture
Sakshi Arora et al.
Journal of virology, 88(16), 9141-9152 (2014-06-06)
HIV-1 modulates key host cellular pathways for successful replication and pathogenesis through viral proteins. By evaluating the hijacking of the host ubiquitination pathway by HIV-1 at the whole-cell level, we now show major perturbations in the ubiquitinated pool of the
Magda S Santos et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(26), 10634-10646 (2013-06-28)
Increasing evidence indicates that individual synaptic vesicle proteins may use different signals, endocytic adaptors, and trafficking pathways for sorting to distinct pools of synaptic vesicles. Here, we report the identification of a unique amino acid motif in the vesicular GABA
Yumi Hayashi et al.
The Journal of biological chemistry, 289(15), 10530-10539 (2014-02-27)
The Lol system comprising five Lol proteins, LolA through LolE, sorts Escherichia coli lipoproteins to outer membranes. The LolCDE complex, an ATP binding cassette transporter in inner membranes, releases outer membrane-specific lipoproteins in an ATP-dependent manner, causing formation of the
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).
A Mero
Sports medicine (Auckland, N.Z.), 27(6), 347-358 (1999-07-27)
Leucine, isoleucine and valine, the branched-chain amino acids (BCAA), make up about one-third of muscle protein. Of these, leucine has been the most thoroughly investigated because its oxidation rate is higher than that of isoleucine or valine. Leucine also stimulates
Y Yang et al.
Journal of dental research, 92(6), 500-506 (2013-04-30)
Hypodontia, a tooth developmental disease, can affect chewing and pronunciation. Mutations in the ectodysplasin-A (EDA) gene can lead to both X-linked hypohidrotic ectodermal dysplasia (XLHED) and non-syndromic hypodontia (NSH). However, the mechanism by which these 2 related but different disorders
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
Henry J Russell et al.
The FEBS journal, 280(23), 6070-6082 (2013-09-17)
The ability of hemoproteins to discriminate between diatomic molecules, and the subsequent affinity for their chosen ligand, is fundamental to the existence of life. These processes are often controlled by precise structural arrangements in proteins, with heme pocket residues driving
Metastatic castration-resistant prostate cancer hungers for leucine.
Andrew R Tee
Journal of the National Cancer Institute, 105(19), 1427-1428 (2013-09-21)
Michèle Balage et al.
Current opinion in clinical nutrition and metabolic care, 13(3), 265-270 (2010-01-30)
Leucine does not only serve as a substrate for protein synthesis but is also recognized as a potent signal nutrient that regulates protein metabolism. Accordingly, leucine supplementation has been suggested to develop muscle mass or prevent protein loss in several
Iris Thondorf et al.
Bioorganic & medicinal chemistry, 19(21), 6409-6418 (2011-10-01)
The proton-coupled amino acid transporter hPAT1 has recently gained much interest due to its ability to transport small drugs thereby allowing their oral administration. A three-dimensional quantitative structure-activity relationship (3D QSAR) study has been performed on its natural and synthetic
Pengxiang She et al.
PloS one, 8(3), e59443-e59443 (2013-03-26)
Branched-chain amino acids (BCAAs) are circulating nutrient signals for protein accretion, however, they increase in obesity and elevations appear to be prognostic of diabetes. To understand the mechanisms whereby obesity affects BCAAs and protein metabolism, we employed metabolomics and measured
L H Elvers et al.
Journal of inherited metabolic disease, 30(4), 609-609 (2007-06-19)
Neonatal screening for congenital disorders like phenylketonuria (PKU), congenital hypothyroidism (CH) and congenital adrenal hyperplasia (CAH) is generally performed in dried blood spots on filter paper. The analytes of interest for testing for PKU, CH and CAH are phenylalanine, thyrotropin
Jenna L Jewell et al.
Science (New York, N.Y.), 347(6218), 194-198 (2015-01-09)
The mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) integrates environmental and intracellular signals to regulate cell growth. Amino acids stimulate mTORC1 activation at the lysosome in a manner thought to be dependent on the Rag small guanosine triphosphatases (GTPases)
Elin Hadler-Olsen et al.
Journal of cellular physiology, 230(1), 160-169 (2014-06-07)
Matrix metalloproteinase 2 (MMP-2) is a proteolytic enzyme implicated in motility, differentiation, and regeneration of skeletal muscle fibers through processing of extracellular substrates. Although MMP-2 has been found to be localized intracellularly in cardiomyocytes where the enzyme is thought to
E Yildiz et al.
European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry, 14(3), 209-214 (2013-12-04)
The aim of this in vitro study is to evaluate the effects of three different caries removal techniques on the microtensile bond strength of adhesive materials to caries-affected dentin. Thirty primary molar teeth were used. The teeth were randomly divided
S Ishiwata et al.
The Tohoku journal of experimental medicine, 176(1), 61-68 (1995-05-01)
To evaluate the clinical usefulness of serum 1-methyladenosine, several modifications have been made in our previously established inhibition ELISA system. Horseradish peroxidase (HRP) labeled anti-mouse IgG and 3,3',5,5'-tetramethylbenzidine (TMBZ) were used as a secondary antibody and a substrate, respectively. The
Initial experience with L-leucine therapy in myelodysplastic syndromes with associated chromosome 5q deletion.
David P Steensma et al.
Blood, 121(21), 4428-4428 (2013-05-25)
Plasma concentrations of phenyllactic acid in phenylketonuria.
P C Clemens et al.
Journal of inherited metabolic disease, 13(2), 227-228 (1990-01-01)
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