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Abhishek Tripathi et al.
Biochemistry, 52(24), 4184-4192 (2013-05-24)
Extracellular ubiquitin has recently been described as a CXC chemokine receptor (CXCR) 4 agonist. Studies on the structure-function relationship suggested that the C-terminus of ubiquitin facilitates CXCR4 activation. It remains unknown, however, whether C-terminal processing of ubiquitin could be biologically
Shoko Suzumura et al.
Journal of nutritional science and vitaminology, 61(5), 417-421 (2015-12-08)
Brain protein synthesis and the plasma concentration of growth hormone (GH) are sensitive to dietary ornithine. The purpose of this study was to determine whether dietary arginine, the metabolite of ornithine, affects the brain protein synthesis, and to that end
B A Shaywitz et al.
Neurology, 25(1), 72-79 (1975-01-01)
Cerebrospinal fluid (CSF) concentrations of 5-hydroxyindoleacetic acid (5-HIAA), homovanillic acid (HVA) and probenecid were examined in 14 children with epilepsy (ages 6 months to 17 years) and 17 controls (ages 14 months to 16 years). The concentrations of amine metabolites
Aleksander Salwiński et al.
Rapid communications in mass spectrometry : RCM, 28(18), 1957-1963 (2014-08-19)
Tyrosinase-coupled magnetic particles (EMPs) were used to demonstrate that resorcinol-containing tyrosinase inhibitors are oxidised by tyrosinase only in the presence of the enzyme's classic substrate. This shows the potential for the application of EMPs as a non-organic matrix for monitoring
Graziano Colombo et al.
Biochimica et biophysica acta, 1850(1), 1-12 (2014-10-05)
Advanced oxidation protein products (AOPPs) are dityrosine cross-linked and carbonyl-containing protein products formed by the reaction of plasma proteins with chlorinated oxidants, such as hypochlorous acid (HOCl). Most studies consider human serum albumin (HSA) as the main protein responsible for
Hin-Ting Wan et al.
Endocrinology, 155(1), 249-262 (2013-10-31)
Environmental toxicants such as perfluorooctanesulfonate (PFOS) have been implicated in male reproductive dysfunction, including reduced sperm count and semen quality, in humans. However, the underlying mechanism(s) remains unknown. Herein PFOS at 10-20 μM (∼5-10 μg/mL) was found to be more
Joanna Czarnecka et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 822(1-2), 85-90 (2005-07-05)
New method of qualitative and quantitative analysis of nucleotides in human cerebrospinal fluid (CSF), based on the combination of extraction of purines and pyrimidines to the solid phase (SPE) and high-performance liquid chromatography (HPLC), was proposed. Use of SPE and
Griet Van Zeebroeck et al.
Nature chemical biology, 5(1), 45-52 (2008-12-09)
Transporter-related nutrient sensors, called transceptors, mediate nutrient activation of signaling pathways through the plasma membrane. The mechanism of action of transporting and nontransporting transceptors is unknown. We have screened 319 amino acid analogs to identify compounds that act on Gap1
Jun Yup Kwak et al.
Archives of dermatological research, 307(7), 635-643 (2015-06-17)
L-Ascorbic acid (AA) and p-coumaric acid (p-CA) are naturally occurring antioxidants that are known to enhance collagen synthesis and inhibit melanin synthesis, respectively. The purpose of this study was to examine hybrid compounds between AA and p-CA as multifunctional cosmeceutical
Ying-Ying Wu et al.
Journal of Asian natural products research, 17(11), 1097-1103 (2015-05-20)
A new 2,7'-type cyclolignan glycoside, cyclolignanyingoside A (1), together with six known compounds (2-7) were isolated from the tubers of Pinellia ternata (Thunb.) Breit. The structure of 1 was elucidated on the basis of chemical and spectral analysis, including 1D
J S Yokhana et al.
Poultry science, 95(3), 550-559 (2015-11-18)
Two experiments were conducted to study effects of dietary insoluble fiber (IF) on digestive enzyme function in layer poultry. In Experiment 1, 8 wk old pullets were fed a control diet (Group C) or a diet (Group IF) supplemented with
Rajat Madan et al.
Infection and immunity, 82(1), 341-349 (2013-10-30)
The role of leptin in the mucosal immune response to Clostridium difficile colitis, a leading cause of nosocomial infection, was studied in humans and in a murine model. Previously, a mutation in the receptor for leptin (LEPR) was shown to
Veronika Dunkl et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 56(1), 88-92 (2014-12-20)
Experience regarding O-(2-(18)F-fluoroethyl)-L-tyrosine ((18)F-FET) PET in children and adolescents with brain tumors is limited. Sixty-nine (18)F-FET PET scans of 48 children and adolescents (median age, 13 y; range, 1-18 y) were analyzed retrospectively. Twenty-six scans to assess newly diagnosed cerebral
Giovanni Paolo Cetrangolo et al.
Biochemical and biophysical research communications, 450(1), 488-493 (2014-06-10)
A tryptic fragment (b5TR,NR), encompassing residues 2515-2750, was isolated from a low-iodine (0.26% by mass) bovine thyroglobulin, by limited proteolysis with trypsin and preparative, continuous-elution SDS-PAGE. The fragment was digested with Asp-N endoproteinase and analyzed by reverse-phase HPLC electrospray ionization
Ray Suhandynata et al.
G3 (Bethesda, Md.), 4(11), 2125-2135 (2014-08-30)
Quantitative proteomics has been widely used to elucidate many cellular processes. In particular, stable isotope labeling by amino acids in cell culture (SILAC) has been instrumental in improving the quality of data generated from quantitative high-throughput proteomic studies. SILAC uses
Yipin Wu et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 309(7), R747-R756 (2015-08-01)
Inwardly rectifying potassium channels play essential roles in renal physiology across phyla. Barium-sensitive K(+) conductances are found on the basolateral membrane of a variety of insect Malpighian (renal) tubules, including Drosophila melanogaster. We found that barium decreases the lumen-positive transepithelial
T Kupsa et al.
Experimental oncology, 36(4), 252-257 (2014-12-30)
Evaluation of serum levels of 17 cytokines and 5 adhesion molecules in patients with newly diagnosed acute myeloid leukemia (AML) using biochip array technology. We searched for links between baseline levels and age, hyperleukocytosis, secondary origin of AML, resistance to
Amy I Yu et al.
Cell reports, 31(1), 107471-107471 (2020-04-09)
There is increasing evidence that gut microbiome perturbations, also known as dysbiosis, can influence colorectal cancer development. To understand the mechanisms by which the gut microbiome modulates cancer susceptibility, we examine two wild-type mouse colonies with distinct gut microbial communities
Mohammad Mahdi Moein et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 967, 168-173 (2014-08-12)
In situ monolithic molecularly imprinted polymer sol-gel packed tips (MMSTs) were prepared and evaluated for the extraction of lung cancer biomarker L-tyrosine (Tyr) from human plasma and urine samples. Several extraction parameters such as the conditioning, washing and elution solutions
Yogita Kanan et al.
The Journal of biological chemistry, 289(19), 13419-13433 (2014-04-03)
Retinal detachment is the physical separation of the retina from the retinal pigment epithelium. It occurs during aging, trauma, or during a variety of retinal disorders such as age-related macular degeneration, diabetic retinopathy, retinopathy of prematurity, or as a complication
Kriti Dubey et al.
Amino acids, 47(12), 2551-2560 (2015-07-22)
Here, we have strategically synthesized stable gold (AuNPs(Tyr), AuNPs(Trp)) and silver (AgNPs(Tyr)) nanoparticles which are surface functionalized with either tyrosine or tryptophan residues and have examined their potential to inhibit amyloid aggregation of insulin. Inhibition of both spontaneous and seed-induced
Pelin Onsekizoglu Bagci et al.
Journal of food science, 80(9), N2071-N2078 (2015-08-05)
Gold nanoparticles (AuNPs) were synthesized at room temperature following a simple, rapid, and green route using fresh-squeezed apple juice as a reducing reagent. The optimal AuNPs, based on the particle color, stability, and color change suitable for colorimetric detection of
Vincent Dunet et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 53(2), 207-214 (2012-02-04)
For the past decade, PET with (18)F-fluoro-ethyl-tyrosine ((18)F-FET) has been used in the evaluation of patients with primary brain tumors (PBTs), but so far series have reported only a limited number of patients. The purpose of this systematic review and
S-nitrosoglutathione inhibits inducible nitric oxide synthase upregulation by redox posttranslational modification in experimental diabetic retinopathy.
Rosales MA, Silva KC, Duarte DA, et al.
Investigative Ophthalmology & Visual Science, 55(5), 2921-2932 (2014)
Lutz Tautz et al.
Methods in molecular biology (Clifton, N.J.), 1053, 179-221 (2013-07-19)
Protein tyrosine phosphorylation is a key regulatory mechanism in eukaryotic cell physiology. Aberrant expression or function of protein tyrosine kinases and protein tyrosine phosphatases can lead to serious human diseases, including cancer, diabetes, as well as cardiovascular, infectious, autoimmune, and
Elena Brezina et al.
Environmental science & technology, 49(17), 10449-10456 (2015-08-25)
Carbamazepine (CBZ) is a worldwide used antiepileptic drug, which is metabolized to a large extent in the human body to several metabolites, including 10,11-dihydroxy-10,11-dihydrocarbamazepine (DiOHCBZ), 2-hydroxycarbamazepine (2OHCBZ), and 3-hydroxycarbamazepine (3OHCBZ). 2OHCBZ and 3OHCBZ were previously detected in raw and treated
Frank Jansen et al.
Biotechnology and applied biochemistry, 61(6), 646-654 (2014-03-01)
The plant polymer lignin is the greatest source of aromatic chemical structures on earth. Hence, the chemically diverse lignin monomers are valuable raw materials for fine chemicals, materials synthesis, and food and flavor industries. However, extensive use of this natural
Emily J Platt et al.
Journal of virology, 88(8), 4304-4318 (2014-01-31)
HIV-1 membranes contain gp120-gp41 trimers. Binding of gp120 to CD4 and a coreceptor (CCR5 or CXCR4) reduces the constraint on metastable gp41, enabling a series of conformational changes that cause membrane fusion. An analytic difficulty occurs because these steps occur
Juan Du et al.
Antonie van Leeuwenhoek, 108(3), 695-701 (2015-07-15)
A yellowish colored, Gram-staining negative, strictly aerobic, motile, rod-shaped bacterium, designated THG-SQE7(T), was isolated from reed pond water in Shangqiu, PR China. Comparative 16S rRNA gene sequence analysis indicated that strain THG-SQE7(T) is most closely related to Hydrogenophaga pseudoflava ATCC
Weirong Wang et al.
Experimental cell research, 319(10), 1523-1533 (2013-04-23)
The ligand-activated transcription factor peroxisome proliferator-activated receptor-α (PPARα) participates in the regulation of cellular inflammation. More recent studies indicated that sirtuin1 (SIRT1), a NAD(+)-dependent deacetylase, regulates the inflammatory response in adipocytes. However, whether the role of PPARα in inflammation is
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