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  • 1
    ISSN: 1434-1948
    Keywords: Porphyrazines ; Fullerenes ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: X-ray structural analysis of octakis(dimethylamino)porphyrazinato-metallo(II)·[60]fullerene complexes (M = Cu2+ and Ni2+) surprisingly revealed two totally different supramolecular structures, the first exhibiting a Ci symmetric sandwich complex of two slightly dished porphyrazine units enclosing one fullerene sphere, the other featuring a noncentrosymmetric 1:1 complex with a strongly warped porphyrazine unit.
    Additional Material: 8 Ill.
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  • 2
    ISSN: 1434-193X
    Keywords: Catenanes ; Cyclophanes ; Electrochemistry ; Electronic spectroscopy ; Template-directed synthesis ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: -Catenanes composed of two, three, five, or seven interlocked macrocycles have been synthesized in yields ranging from 1 to 30%. Their template-directed syntheses rely on a series of cooperative noncovalent bonding interactions between π-electron rich 1,5-dioxynaphthalene ring systems and π-electron deficient bipyridinium units which are incorporated within the macrocyclic components. The interlocked structure associated with one of the [3]catenanes was demonstrated unequivocally by single crystal X-ray analysis which also revealed the formation of polar stacks stabilized by intermolecular [π···π] interactions. The number of interlocked components of each catenane was determined by liquid secondary ion, matrix-assisted laser desorption ionization/time-of-flight, and/or electrospray mass spectrometries. The absorption spectra, emission spectra, and electrochemical properties of the macrocyclic components and of the catenanes have been investigated. Two kinds of charge-transfer absorption bands (intramolecular in the cyclophanes containing electron-donor and electron-acceptor units, intercomponent in the catenanes) have been found. Such charge-transfer excited states are responsible for the quenching of the potentially fluorescence units of the cyclophanes, and of the crown ethers in the catenanes. Charge-transfer electronic interactions are also evidenced by the electrochemical behavior. Correlations among the redox potentials of the various compounds are reported and discussed.
    Additional Material: 7 Ill.
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  • 3
    ISSN: 1434-1948
    Keywords: Thiacalixarene ; Trimetallic sandwich ; Cobalt ; Zinc ; Divergent receptors ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reaction between deprotonated p-tert-butyltetrathiacalix[4]arene and CoII or ZnII under strictly defined conditions leads to the formation of sandwich species in which a trimetallic unit is held between two opposed, divergently oriented, staggered O- and S-bound calixarene ligands in the cone conformation. Despite the isomorphous nature of the crystalline compounds, there is a subtle difference in the coordination of CoII and ZnII, presumably related to the differences in metal radius and electron configuration combined with structural restrictions imposed by the calixarene framework, in that whereas all three Co atoms may be considered six-coordinate (and approximately octahedral), only two of the Zn atoms appear so, the third being five-coordinate and more nearly trigonal bipyramidal in its coordination geometry.
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  • 4
    Publication Date: 2000-03-10
    Description: The 2,272,351-base pair genome of Neisseria meningitidis strain MC58 (serogroup B), a causative agent of meningitis and septicemia, contains 2158 predicted coding regions, 1158 (53.7%) of which were assigned a biological role. Three major islands of horizontal DNA transfer were identified; two of these contain genes encoding proteins involved in pathogenicity, and the third island contains coding sequences only for hypothetical proteins. Insights into the commensal and virulence behavior of N. meningitidis can be gleaned from the genome, in which sequences for structural proteins of the pilus are clustered and several coding regions unique to serogroup B capsular polysaccharide synthesis can be identified. Finally, N. meningitidis contains more genes that undergo phase variation than any pathogen studied to date, a mechanism that controls their expression and contributes to the evasion of the host immune system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tettelin, H -- Saunders, N J -- Heidelberg, J -- Jeffries, A C -- Nelson, K E -- Eisen, J A -- Ketchum, K A -- Hood, D W -- Peden, J F -- Dodson, R J -- Nelson, W C -- Gwinn, M L -- DeBoy, R -- Peterson, J D -- Hickey, E K -- Haft, D H -- Salzberg, S L -- White, O -- Fleischmann, R D -- Dougherty, B A -- Mason, T -- Ciecko, A -- Parksey, D S -- Blair, E -- Cittone, H -- Clark, E B -- Cotton, M D -- Utterback, T R -- Khouri, H -- Qin, H -- Vamathevan, J -- Gill, J -- Scarlato, V -- Masignani, V -- Pizza, M -- Grandi, G -- Sun, L -- Smith, H O -- Fraser, C M -- Moxon, E R -- Rappuoli, R -- Venter, J C -- New York, N.Y. -- Science. 2000 Mar 10;287(5459):1809-15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Genomic Research (TIGR), 9712 Medical Center Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10710307" target="_blank"〉PubMed〈/a〉
    Keywords: Antigenic Variation ; Antigens, Bacterial/immunology ; Bacteremia/microbiology ; Bacterial Capsules/genetics ; Bacterial Proteins/genetics/physiology ; DNA Transposable Elements ; Evolution, Molecular ; Fimbriae, Bacterial/genetics ; *Genome, Bacterial ; Humans ; Meningitis, Meningococcal/microbiology ; Meningococcal Infections/microbiology ; Molecular Sequence Data ; Mutation ; Neisseria meningitidis/classification/*genetics/*pathogenicity/physiology ; Open Reading Frames ; Operon ; Phylogeny ; Recombination, Genetic ; *Sequence Analysis, DNA ; Serotyping ; Transformation, Bacterial ; Virulence/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2002-04-27
    Description: Reports of substantial evidence for genetic linkage of schizophrenia to chromosome 1q were evaluated by genotyping 16 DNA markers across 107 centimorgans of this chromosome in a multicenter sample of 779 informative schizophrenia pedigrees. No significant evidence was observed for such linkage, nor for heterogeneity in allele sharing among the eight individual samples. Separate analyses of European-origin families, recessive models of inheritance, and families with larger numbers of affected cases also failed to produce significant evidence for linkage. If schizophrenia susceptibility genes are present on chromosome 1q, their population-wide genetic effects are likely to be small.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levinson, Douglas F -- Holmans, Peter A -- Laurent, Claudine -- Riley, Brien -- Pulver, Ann E -- Gejman, Pablo V -- Schwab, Sibylle G -- Williams, Nigel M -- Owen, Michael J -- Wildenauer, Dieter B -- Sanders, Alan R -- Nestadt, Gerald -- Mowry, Bryan J -- Wormley, Brandon -- Bauche, Stephanie -- Soubigou, Stephane -- Ribble, Robert -- Nertney, Deborah A -- Liang, Kung Yee -- Martinolich, Laura -- Maier, Wolfgang -- Norton, Nadine -- Williams, Hywel -- Albus, Margot -- Carpenter, Eric B -- DeMarchi, Nicola -- Ewen-White, Kelly R -- Walsh, Dermot -- Jay, Maurice -- Deleuze, Jean-Francois -- O'Neill, F Anthony -- Papadimitriou, George -- Weilbaecher, Ann -- Lerer, Bernard -- O'Donovan, Michael C -- Dikeos, Dimitris -- Silverman, Jeremy M -- Kendler, Kenneth S -- Mallet, Jacques -- Crowe, Raymond R -- Walters, Marilyn -- G9309834/Medical Research Council/United Kingdom -- G9810900/Medical Research Council/United Kingdom -- K24-MH64197/MH/NIMH NIH HHS/ -- KO2-01207/PHS HHS/ -- MH 41953/MH/NIMH NIH HHS/ -- MH 45390/MH/NIMH NIH HHS/ -- MH 52537/MH/NIMH NIH HHS/ -- MH61602/MH/NIMH NIH HHS/ -- R01-MH57314/MH/NIMH NIH HHS/ -- U01 MH46289/MH/NIMH NIH HHS/ -- U01 MH46318/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2002 Apr 26;296(5568):739-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Pennsylvania, Philadelphia, PA 19104, USA. dfl@mail.med.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976456" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Alleles ; Australia ; Canada ; Chromosomes, Human, Pair 1/*genetics ; Europe ; Female ; Genes, Recessive ; *Genetic Linkage ; *Genetic Predisposition to Disease ; Genotype ; Humans ; Lod Score ; Male ; Microsatellite Repeats ; Pedigree ; Schizophrenia/ethnology/*genetics ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2002-06-29
    Description: Myeloperoxidase (MPO) is an abundant mammalian phagocyte hemoprotein thought to primarily mediate host defense reactions. Although its microbicidal functions are well established in vitro, humans deficient in MPO are not at unusual risk of infection. MPO was observed herein to modulate the vascular signaling and vasodilatory functions of nitric oxide (NO) during acute inflammation. After leukocyte degranulation, MPO localized in and around vascular endothelial cells in a rodent model of acute endotoxemia and impaired endothelium-dependent relaxant responses, to which MPO-deficient mice were resistant. Altered vascular responsiveness was due to catalytic consumption of NO by substrate radicals generated by MPO. Thus MPO can directly modulate vascular inflammatory responses by regulating NO bioavailability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eiserich, Jason P -- Baldus, Stephan -- Brennan, Marie-Luise -- Ma, Wenxin -- Zhang, Chunxiang -- Tousson, Albert -- Castro, Laura -- Lusis, Aldons J -- Nauseef, William M -- White, C Roger -- Freeman, Bruce A -- I01 BX000513/BX/BLRD VA/ -- R01 HL067930/HL/NHLBI NIH HHS/ -- R03 TW005682/TW/FIC NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 28;296(5577):2391-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Division of Nephrology, University of California, Davis, CA 95616, USA. jpeiserich@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12089442" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta ; Catalysis ; Cattle ; Cells, Cultured ; Chromans/metabolism/pharmacology ; Coculture Techniques ; Cyclic GMP/metabolism ; Endothelium, Vascular/enzymology/*physiology ; Endotoxemia/enzymology ; Humans ; Hydrogen Peroxide/metabolism/pharmacology ; Inflammation/*enzymology/physiopathology ; Leukocytes/*enzymology ; Mice ; Mice, Inbred C57BL ; Muscle, Smooth, Vascular/metabolism ; Mutation ; Nitric Oxide/*metabolism ; Oxidation-Reduction ; Peroxidase/genetics/*metabolism ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; Transfection ; Tumor Cells, Cultured ; *Vasodilation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2000-09-08
    Description: Myotonic dystrophy (DM), the most common form of muscular dystrophy in adult humans, results from expansion of a CTG repeat in the 3' untranslated region of the DMPK gene. The mutant DMPK messenger RNA (mRNA) contains an expanded CUG repeat and is retained in the nucleus. We have expressed an untranslated CUG repeat in an unrelated mRNA in transgenic mice. Mice that expressed expanded CUG repeats developed myotonia and myopathy, whereas mice expressing a nonexpanded repeat did not. Thus, transcripts with expanded CUG repeats are sufficient to generate a DM phenotype. This result supports a role for RNA gain of function in disease pathogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mankodi, A -- Logigian, E -- Callahan, L -- McClain, C -- White, R -- Henderson, D -- Krym, M -- Thornton, C A -- New York, N.Y. -- Science. 2000 Sep 8;289(5485):1769-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, School of Medicine and Dentistry, University of Rochester, Box 673, 601 Elmwood Avenue, Rochester, NY 14642, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10976074" target="_blank"〉PubMed〈/a〉
    Keywords: 3' Untranslated Regions ; Actins/genetics ; Action Potentials ; Animals ; Cell Nucleus/metabolism/pathology ; Disease Models, Animal ; Humans ; In Situ Hybridization, Fluorescence ; Mice ; Mice, Transgenic ; Muscle, Skeletal/metabolism/pathology/physiopathology ; Myotonic Dystrophy/*genetics/metabolism/pathology/physiopathology ; Myotonin-Protein Kinase ; Phenotype ; Protein-Serine-Threonine Kinases/genetics ; RNA Splicing ; RNA, Messenger/*genetics/metabolism ; Transgenes ; *Trinucleotide Repeat Expansion
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2002-09-21
    Description: We report here the adoptive transfer, to patients with metastatic melanoma, of highly selected tumor-reactive T cells directed against overexpressed self-derived differentiation antigens after a nonmyeloablative conditioning regimen. This approach resulted in the persistent clonal repopulation of T cells in those cancer patients, with the transferred cells proliferating in vivo, displaying functional activity, and trafficking to tumor sites. This led to regression of the patients' metastatic melanoma as well as to the onset of autoimmune melanocyte destruction. This approach presents new possibilities for the treatment of patients with cancer as well as patients with human immunodeficiency virus-related acquired immunodeficiency syndrome and other infectious diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1764179/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1764179/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dudley, Mark E -- Wunderlich, John R -- Robbins, Paul F -- Yang, James C -- Hwu, Patrick -- Schwartzentruber, Douglas J -- Topalian, Suzanne L -- Sherry, Richard -- Restifo, Nicholas P -- Hubicki, Amy M -- Robinson, Michael R -- Raffeld, Mark -- Duray, Paul -- Seipp, Claudia A -- Rogers-Freezer, Linda -- Morton, Kathleen E -- Mavroukakis, Sharon A -- White, Donald E -- Rosenberg, Steven A -- Z01 BC010763-01/Intramural NIH HHS/ -- Z99 CA999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2002 Oct 25;298(5594):850-4. Epub 2002 Sep 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20902, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12242449" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Antigens, Neoplasm ; *Autoimmunity ; CD8-Positive T-Lymphocytes/immunology ; Clone Cells ; Cytokines/secretion ; Female ; HLA-A2 Antigen/immunology ; Histocompatibility Antigens Class I/immunology ; Histocompatibility Antigens Class II/immunology ; Humans ; *Immunotherapy, Adoptive ; Interleukin-2/therapeutic use ; Lymphocyte Count ; Lymphocyte Depletion ; Lymphocytes, Tumor-Infiltrating/*immunology ; MART-1 Antigen ; Male ; Melanocytes/immunology ; Melanoma/*immunology/pathology/secondary/*therapy ; Middle Aged ; Neoplasm Proteins/immunology ; Receptors, Antigen, T-Cell, alpha-beta/immunology ; T-Lymphocytes/*immunology ; Treatment Outcome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2001-05-19
    Description: The human genome was analyzed for evidence that genes had been laterally transferred into the genome from prokaryotic organisms. Protein sequence comparisons of the proteomes of human, fruit fly, nematode worm, yeast, mustard weed, eukaryotic parasites, and all completed prokaryote genomes were performed, and all genes shared between human and each of the other groups of organisms were collected. About 40 genes were found to be exclusively shared by humans and bacteria and are candidate examples of horizontal transfer from bacteria to vertebrates. Gene loss combined with sample size effects and evolutionary rate variation provide an alternative, more biologically plausible explanation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salzberg, S L -- White, O -- Peterson, J -- Eisen, J A -- R01 LM06845/LM/NLM NIH HHS/ -- New York, N.Y. -- Science. 2001 Jun 8;292(5523):1903-6. Epub 2001 May 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute for Genomic Research, 9712 Medical Center Drive, Rockville, MD 20850, USA. salzberg@tigr.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11358996" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arabidopsis/genetics ; Bacteria/genetics ; *Biological Evolution ; Caenorhabditis elegans/genetics ; Computational Biology ; Databases, Factual ; Drosophila melanogaster/genetics ; *Gene Transfer, Horizontal ; *Genes, Bacterial ; Genome ; *Genome, Human ; Humans ; Invertebrates/genetics ; Parasites/genetics ; Phylogeny ; Plants/genetics ; Proteome ; Saccharomyces cerevisiae/genetics ; Vertebrates/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-03-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉White, Tim -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):1994-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Biology, University of California, Berkeley, CA 94720, USA. timwhite@socrates.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12663903" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Biological Evolution ; *Fossils ; Genetic Variation ; Hominidae/*anatomy & histology/*classification/genetics ; Humans ; *Paleontology ; Phylogeny ; Selection, Genetic ; Skull/*anatomy & histology ; Terminology as Topic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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