نتایج جستجو برای: mag

تعداد نتایج: 5294  

2008
Myung Gyoon Lee Yong-Ik Byun

We present deep BV RI CCD photometry of the stars in the dwarf irregular galaxy UKS 2323–326 in the Sculptor Group. The color-magnitude diagrams of the measured stars in UKS 2323–326 show a blue plume which consists mostly of young stellar populations, and a well-defined red giant branch (RGB). The tip of the RGB is found to be at ITRGB = 22.65± 0.10 mag. From this the distance to this galaxy i...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Alka A Vyas Himatkumar V Patel Susan E Fromholt Marija Heffer-Lauc Kavita A Vyas Jiyoung Dang Melitta Schachner Ronald L Schnaar

Myelin-associated glycoprotein (MAG) binds to the nerve cell surface and inhibits nerve regeneration. The nerve cell surface ligand(s) for MAG are not established, although sialic acid-bearing glycans have been implicated. We identify the nerve cell surface gangliosides GD1a and GT1b as specific functional ligands for MAG-mediated inhibition of neurite outgrowth from primary rat cerebellar gran...

Journal: :The Journal of Cell Biology 1987
M Poltorak R Sadoul G Keilhauer C Landa T Fahrig M Schachner

A monoclonal antibody to the myelin-associated glycoprotein (MAG) was prepared and characterized to probe for the involvement of MAG in cell surface interactions among neural cells in vitro. The antibody reacts specifically with oligodendrocyte cell surface and myelin-rich brain regions as expected from previous investigations. Not all O4 antigen-positive oligodendrocytes express MAG in vitro. ...

Journal: :Neuron 2004
John R. Henley Kuo-hua Huang Dennis Wang Mu-ming Poo

Cytoplasmic second messengers, Ca2+ and cAMP, regulate nerve growth cone turning responses induced by many guidance cues, but the causal relationship between these signaling pathways has been unclear. We here report that, for growth cone turning induced by a gradient of myelin-associated glycoprotein (MAG), cAMP acts by modulating MAG-induced Ca2+ signaling. Growth cone repulsion induced by MAG...

Journal: :iranian journal of microbiology 0
hadis amraie department of microbiology, lorestan university of medical sciences, khorramabad, iran. pegah shakib cellular & molecular research center and microbiology department, member of student research committee, kurdistan university of medical sciences, sanandaj, iran. samaneh rouhi cellular & molecular research center and microbiology department, member of student research committee, kurdistan university of medical sciences, sanandaj, iran. neda bakhshandeh applied agriculture branch, semnan applied sciences and technology university, semnan, iran. behnam zamanzad department of microbiology, shahrekord university of medical sciences, shahrekord, iran.

background and objectives: klebsiella pneumoniae ( k. pneumoniae ) is an opportunistic microorganism. this study aimed to investigate the presence of mag a gene and antimicrobial susceptibility in k. pneumoniae . materials and methods: 195 clinical specimens were collected from hospitals of shahrekord, iran. bacterial culture, biochemical diagnostic standard test, determination of antibiotic se...

Journal: :Oncology reports 2009
Jinqiang Zhang Gang Liu Yuhong Meng Huiyun Lin Yinglin Lu

Tumor metastasis, the important characteristic of malignant tumors, is closely associated with a series of changes in the expressions of genes and proteins. A novel gene MAG-2, which may have close correlation with lung cancer metastasis, was identified in our laboratory through an approach of suppressed subtractive hybridization using lung cancer cell strains with the same origin but different...

Journal: :The Journal of Cell Biology 2007
Karthik Venkatesh Onanong Chivatakarn Shey-Shing Sheu Roman J. Giger

Neuronal Nogo66 receptor-1 (NgR1) binds the myelin inhibitors NogoA, OMgp, and myelin-associated glycoprotein (MAG) and has been proposed to function as the ligand-binding component of a receptor complex that also includes Lingo-1, p75(NTR), or TROY. In this study, we use Vibrio cholerae neuraminidase (VCN) and mouse genetics to probe the molecular composition of the MAG receptor complex in pos...

2002
F. J. Clarke B. R. Oppenheimer C. G. Tinney

We report differential I-band photometry of four early L-dwarfs obtained to study variability. We detect variability on the timescale of hours in two objects, 2M0746425+200032 (at a level of 0.007 mag – 6.5 sigma) and 2M1108307+683017 (0.012 mag – 5 sigma). We also place upper limits of 0.02 mag (1 sigma) on the variability of two others.

2012
Cristina Cruz-Hernandez Sagar K. Thakkar Julie Moulin Manuel Oliveira Isabelle Masserey-Elmelegy Fabiola Dionisi Frédéric Destaillats

In the present study, we used a preclinical model of induced lipolytic enzyme insufficiency, and hypothesized that the use of monoacylglycerols (MAG) will enhance their bioavailability and delivery to the tissues. Experimental diets containing 20% lipids were fed to rats for 21 days with or without Orlistat. The control diet of fish oil (FO), a source of EPA and DHA, was tested against: structu...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 1989
R Müller-Suur C Müller-Suur

Technetium-99m mercaptoacetyltriglycine (MAG-3) has recently been introduced as a new radiopharmaceutical for dynamic renal scintigraphy. To elucidate the mechanism of renal excretion, micropuncture experiments were performed in rat kidneys for direct measurements of glomerular filtration and tubular secretory capacity. Fluid of Bowman space was collected from superficial glomeruli and analyzed...

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