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  • 1
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    Drug-based modulation of endogenous stem cells promotes functional remyelination in vivo (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-04-22
    Description: Multiple sclerosis involves an aberrant autoimmune response and progressive failure of remyelination in the central nervous system. Prevention of neural degeneration and subsequent disability requires remyelination through the generation of new oligodendrocytes, but current treatments exclusively target the immune system. Oligodendrocyte progenitor cells are stem cells in the central nervous system and the principal source of myelinating oligodendrocytes. These cells are abundant in demyelinated regions of patients with multiple sclerosis, yet fail to differentiate, thereby representing a cellular target for pharmacological intervention. To discover therapeutic compounds for enhancing myelination from endogenous oligodendrocyte progenitor cells, we screened a library of bioactive small molecules on mouse pluripotent epiblast stem-cell-derived oligodendrocyte progenitor cells. Here we show seven drugs function at nanomolar doses selectively to enhance the generation of mature oligodendrocytes from progenitor cells in vitro. Two drugs, miconazole and clobetasol, are effective in promoting precocious myelination in organotypic cerebellar slice cultures, and in vivo in early postnatal mouse pups. Systemic delivery of each of the two drugs significantly increases the number of new oligodendrocytes and enhances remyelination in a lysolecithin-induced mouse model of focal demyelination. Administering each of the two drugs at the peak of disease in an experimental autoimmune encephalomyelitis mouse model of chronic progressive multiple sclerosis results in striking reversal of disease severity. Immune response assays show that miconazole functions directly as a remyelinating drug with no effect on the immune system, whereas clobetasol is a potent immunosuppressant as well as a remyelinating agent. Mechanistic studies show that miconazole and clobetasol function in oligodendrocyte progenitor cells through mitogen-activated protein kinase and glucocorticoid receptor signalling, respectively. Furthermore, both drugs enhance the generation of human oligodendrocytes from human oligodendrocyte progenitor cells in vitro. Collectively, our results provide a rationale for testing miconazole and clobetasol, or structurally modified derivatives, to enhance remyelination in patients.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528969/" 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/PMC4528969/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Najm, Fadi J -- Madhavan, Mayur -- Zaremba, Anita -- Shick, Elizabeth -- Karl, Robert T -- Factor, Daniel C -- Miller, Tyler E -- Nevin, Zachary S -- Kantor, Christopher -- Sargent, Alex -- Quick, Kevin L -- Schlatzer, Daniela M -- Tang, Hong -- Papoian, Ruben -- Brimacombe, Kyle R -- Shen, Min -- Boxer, Matthew B -- Jadhav, Ajit -- Robinson, Andrew P -- Podojil, Joseph R -- Miller, Stephen D -- Miller, Robert H -- Tesar, Paul J -- F30 CA183510/CA/NCI NIH HHS/ -- F30CA183510/CA/NCI NIH HHS/ -- NS026543/NS/NINDS NIH HHS/ -- NS030800/NS/NINDS NIH HHS/ -- NS085246/NS/NINDS NIH HHS/ -- P30 CA043703/CA/NCI NIH HHS/ -- P30CA043703/CA/NCI NIH HHS/ -- R01 NS026543/NS/NINDS NIH HHS/ -- R01 NS030800/NS/NINDS NIH HHS/ -- R21 NS085246/NS/NINDS NIH HHS/ -- T32 GM007250/GM/NIGMS NIH HHS/ -- T32 GM008056/GM/NIGMS NIH HHS/ -- T32GM008056/GM/NIGMS NIH HHS/ -- UL1 TR000439/TR/NCATS NIH HHS/ -- England -- Nature. 2015 Jun 11;522(7555):216-20. doi: 10.1038/nature14335. Epub 2015 Apr 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA. ; Department of Neurosciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA. ; 1] Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA [2] Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA [3] Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA. ; PerkinElmer, 940 Winter Street, Waltham, Massachusetts 02451, USA. ; Center for Proteomics and Bioinformatics, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA. ; Drug Discovery Center, University of Cincinnati College of Medicine, Cincinnati, Ohio 45237, USA. ; National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, USA. ; Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, 303 E. Chicago Avenue, Chicago, Illinois 60611, USA. ; 1] Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA [2] Department of Neurosciences, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25896324" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/drug effects ; Cerebellum/drug effects/metabolism/pathology ; Clobetasol/*pharmacology ; Demyelinating Diseases/drug therapy/metabolism/pathology ; Disease Models, Animal ; Encephalomyelitis, Autoimmune, Experimental/drug therapy/metabolism/pathology ; Female ; Germ Layers/drug effects/metabolism/pathology ; Humans ; Lysophosphatidylcholines ; MAP Kinase Signaling System ; Male ; Mice ; Miconazole/*pharmacology ; Mitogen-Activated Protein Kinases/metabolism ; Multiple Sclerosis/*drug therapy/*metabolism/pathology ; Myelin Sheath/*drug effects/*metabolism ; Oligodendroglia/cytology/drug effects/metabolism ; Phenotype ; Pluripotent Stem Cells/cytology/*drug effects/metabolism ; Receptors, Glucocorticoid/metabolism ; Regeneration/drug effects ; Tissue Culture Techniques
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Adult-onset primary open-angle glaucoma caused by mutations in optineurin (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-09
    Description: Primary open-angle glaucoma (POAG) affects 33 million individuals worldwide and is a leading cause of blindness. In a study of 54 families with autosomal dominantly inherited adult-onset POAG, we identified the causative gene on chromosome 10p14 and designated it OPTN (for "optineurin"). Sequence alterations in OPTN were found in 16.7% of families with hereditary POAG, including individuals with normal intraocular pressure. The OPTN gene codes for a conserved 66-kilodalton protein of unknown function that has been implicated in the tumor necrosis factor-alpha signaling pathway and that interacts with diverse proteins including Huntingtin, Ras-associated protein RAB8, and transcription factor IIIA. Optineurin is expressed in trabecular meshwork, nonpigmented ciliary epithelium, retina, and brain, and we speculate that it plays a neuroprotective role.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rezaie, Tayebeh -- Child, Anne -- Hitchings, Roger -- Brice, Glen -- Miller, Lauri -- Coca-Prados, Miguel -- Heon, Elise -- Krupin, Theodore -- Ritch, Robert -- Kreutzer, Donald -- Crick, R Pitts -- Sarfarazi, Mansoor -- EY-09947/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1077-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Ophthalmic Genetics Laboratory, Surgical Research Center, Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834836" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Alternative Splicing ; Amino Acid Sequence ; Brain/metabolism ; Chromosome Mapping ; Chromosomes, Human, Pair 10/genetics ; Ciliary Body/metabolism ; Exons ; Eye Proteins/analysis/chemistry/*genetics/physiology ; Female ; Glaucoma, Open-Angle/*genetics ; Golgi Apparatus/chemistry ; Heterozygote ; Humans ; Intraocular Pressure ; Male ; Middle Aged ; *Mutation ; *Mutation, Missense ; Nerve Tissue Proteins/analysis/chemistry/*genetics/physiology ; Ocular Hypertension/genetics ; Pedigree ; Polymorphism, Single-Stranded Conformational ; Retina/metabolism ; Trabecular Meshwork/metabolism ; *Transcription Factor TFIIIA ; Zinc Fingers
    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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  • 3
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    Sperm-female coevolution in Drosophila (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-09
    Description: Rapid evolution of reproductive traits has been attributed to sexual selection arising from interaction between the sexes. However, little is known about the nature of selection driving the evolution of interacting sex-specific phenotypes. Using populations of Drosophila melanogaster selected for divergent sperm length or female sperm-storage organ length, we experimentally show that male fertilization success is determined by an interaction between sperm and female morphology. In addition, sperm length evolution occurred as a correlated response to selection on the female reproductive tract. Giant sperm tails are the cellular equivalent of the peacock's tail, having evolved because females evolved reproductive tracts that selectively bias paternity in favor of males with longer sperm.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Gary T -- Pitnick, Scott -- New York, N.Y. -- Science. 2002 Nov 8;298(5596):1230-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Syracuse University, 108 College Place, Syracuse, NY 13244, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12424377" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Copulation ; Drosophila melanogaster/*anatomy & histology/genetics/*physiology ; Female ; Fertilization ; Genitalia, Female/anatomy & histology/physiology ; Linkage Disequilibrium ; Male ; Selection, Genetic ; Sexual Behavior, Animal ; Sperm Tail/ultrastructure ; Spermatozoa/*cytology/physiology
    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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  • 4
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    A sperm cytoskeletal protein that signals oocyte meiotic maturation and ovulation (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-03-17
    Description: Caenorhabditis elegans oocytes, like those of most animals, arrest during meiotic prophase. Sperm promote the resumption of meiosis (maturation) and contraction of smooth muscle-like gonadal sheath cells, which are required for ovulation. We show that the major sperm cytoskeletal protein (MSP) is a bipartite signal for oocyte maturation and sheath contraction. MSP also functions in sperm locomotion, playing a role analogous to actin. Thus, during evolution, MSP has acquired extracellular signaling and intracellular cytoskeletal functions for reproduction. Proteins with MSP-like domains are found in plants, fungi, and other animals, suggesting that related signaling functions may exist in other phyla.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, M A -- Nguyen, V Q -- Lee, M H -- Kosinski, M -- Schedl, T -- Caprioli, R M -- Greenstein, D -- CA09592/CA/NCI NIH HHS/ -- GM57173/GM/NIGMS NIH HHS/ -- GM58008/GM/NIGMS NIH HHS/ -- HD07043/HD/NICHD NIH HHS/ -- HD25614/HD/NICHD NIH HHS/ -- R01 GM057173/GM/NIGMS NIH HHS/ -- R01 HD025614/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2001 Mar 16;291(5511):2144-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Mass Spectrometry Research Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11251118" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Caenorhabditis elegans/*physiology ; Carrier Proteins/chemistry/physiology ; Cytoskeleton/chemistry/physiology ; Disorders of Sex Development ; Enzyme Activation ; Evolution, Molecular ; Female ; Gonads/cytology/physiology ; Helminth Proteins/chemistry/immunology/pharmacology/*physiology ; MAP Kinase Signaling System ; Male ; *Meiosis ; Membrane Proteins/chemistry/physiology ; Microinjections ; Mitogen-Activated Protein Kinases/metabolism ; Molecular Sequence Data ; Oocytes/*physiology ; Ovulation ; Phylogeny ; Protein Folding ; Protein Structure, Tertiary ; Pseudopodia/physiology ; Recombinant Proteins/pharmacology ; Signal Transduction ; Sperm Motility ; Spermatozoa/chemistry/*physiology
    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
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    Neuroscience. Researchers thrilled with seminal discovery (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2002 Aug 30;297(5586):1460-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12202793" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ejaculation/*physiology ; Humans ; Lumbosacral Region ; Male ; Neurons/*physiology ; Rats ; Spinal Cord/cytology/*physiology
    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
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    Genome, epigenome and RNA sequences of monozygotic twins discordant for multiple sclerosis (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-04-30
    Description: Monozygotic or 'identical' twins have been widely studied to dissect the relative contributions of genetics and environment in human diseases. In multiple sclerosis (MS), an autoimmune demyelinating disease and common cause of neurodegeneration and disability in young adults, disease discordance in monozygotic twins has been interpreted to indicate environmental importance in its pathogenesis. However, genetic and epigenetic differences between monozygotic twins have been described, challenging the accepted experimental model in disambiguating the effects of nature and nurture. Here we report the genome sequences of one MS-discordant monozygotic twin pair, and messenger RNA transcriptome and epigenome sequences of CD4(+) lymphocytes from three MS-discordant, monozygotic twin pairs. No reproducible differences were detected between co-twins among approximately 3.6 million single nucleotide polymorphisms (SNPs) or approximately 0.2 million insertion-deletion polymorphisms. Nor were any reproducible differences observed between siblings of the three twin pairs in HLA haplotypes, confirmed MS-susceptibility SNPs, copy number variations, mRNA and genomic SNP and insertion-deletion genotypes, or the expression of approximately 19,000 genes in CD4(+) T cells. Only 2 to 176 differences in the methylation of approximately 2 million CpG dinucleotides were detected between siblings of the three twin pairs, in contrast to approximately 800 methylation differences between T cells of unrelated individuals and several thousand differences between tissues or between normal and cancerous tissues. In the first systematic effort to estimate sequence variation among monozygotic co-twins, we did not find evidence for genetic, epigenetic or transcriptome differences that explained disease discordance. These are the first, to our knowledge, female, twin and autoimmune disease individual genome sequences reported.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862593/" 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/PMC2862593/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baranzini, Sergio E -- Mudge, Joann -- van Velkinburgh, Jennifer C -- Khankhanian, Pouya -- Khrebtukova, Irina -- Miller, Neil A -- Zhang, Lu -- Farmer, Andrew D -- Bell, Callum J -- Kim, Ryan W -- May, Gregory D -- Woodward, Jimmy E -- Caillier, Stacy J -- McElroy, Joseph P -- Gomez, Refujia -- Pando, Marcelo J -- Clendenen, Leonda E -- Ganusova, Elena E -- Schilkey, Faye D -- Ramaraj, Thiruvarangan -- Khan, Omar A -- Huntley, Jim J -- Luo, Shujun -- Kwok, Pui-Yan -- Wu, Thomas D -- Schroth, Gary P -- Oksenberg, Jorge R -- Hauser, Stephen L -- Kingsmore, Stephen F -- P20 RR016480/RR/NCRR NIH HHS/ -- P20 RR016480-09/RR/NCRR NIH HHS/ -- R01 NS026799/NS/NINDS NIH HHS/ -- R01 NS026799-20A1/NS/NINDS NIH HHS/ -- R01 NS046297/NS/NINDS NIH HHS/ -- R01 NS046297-06/NS/NINDS NIH HHS/ -- R01NS26799/NS/NINDS NIH HHS/ -- R01NS46297/NS/NINDS NIH HHS/ -- RR016480/RR/NCRR NIH HHS/ -- U01 AI066569/AI/NIAID NIH HHS/ -- U01 AI066569-05/AI/NIAID NIH HHS/ -- U19 HD077693/HD/NICHD NIH HHS/ -- England -- Nature. 2010 Apr 29;464(7293):1351-6. doi: 10.1038/nature08990.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California at San Francisco, San Francisco, California 94143, USA. sebaran@cgl.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20428171" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Allelic Imbalance/genetics ; Breast/metabolism ; Breast Neoplasms/genetics ; CD4-Positive T-Lymphocytes/metabolism ; Case-Control Studies ; CpG Islands/genetics ; DNA Copy Number Variations/genetics ; DNA Methylation/genetics ; Epigenesis, Genetic/*genetics ; Female ; Genetic Predisposition to Disease/genetics ; Genome, Human/*genetics ; Haplotypes/genetics ; Heterozygote ; Humans ; INDEL Mutation/genetics ; Lung/metabolism ; Lung Neoplasms/genetics ; Male ; Multiple Sclerosis/*genetics ; Polymorphism, Genetic/genetics ; Quantitative Trait Loci/genetics ; RNA, Messenger/analysis/*genetics/metabolism ; Twins, Monozygotic/*genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
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    Genome analysis of the platypus reveals unique signatures of evolution (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-05-10
    Description: We present a draft genome sequence of the platypus, Ornithorhynchus anatinus. This monotreme exhibits a fascinating combination of reptilian and mammalian characters. For example, platypuses have a coat of fur adapted to an aquatic lifestyle; platypus females lactate, yet lay eggs; and males are equipped with venom similar to that of reptiles. Analysis of the first monotreme genome aligned these features with genetic innovations. We find that reptile and platypus venom proteins have been co-opted independently from the same gene families; milk protein genes are conserved despite platypuses laying eggs; and immune gene family expansions are directly related to platypus biology. Expansions of protein, non-protein-coding RNA and microRNA families, as well as repeat elements, are identified. Sequencing of this genome now provides a valuable resource for deep mammalian comparative analyses, as well as for monotreme biology and conservation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803040/" 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/PMC2803040/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, Wesley C -- Hillier, LaDeana W -- Marshall Graves, Jennifer A -- Birney, Ewan -- Ponting, Chris P -- Grutzner, Frank -- Belov, Katherine -- Miller, Webb -- Clarke, Laura -- Chinwalla, Asif T -- Yang, Shiaw-Pyng -- Heger, Andreas -- Locke, Devin P -- Miethke, Pat -- Waters, Paul D -- Veyrunes, Frederic -- Fulton, Lucinda -- Fulton, Bob -- Graves, Tina -- Wallis, John -- Puente, Xose S -- Lopez-Otin, Carlos -- Ordonez, Gonzalo R -- Eichler, Evan E -- Chen, Lin -- Cheng, Ze -- Deakin, Janine E -- Alsop, Amber -- Thompson, Katherine -- Kirby, Patrick -- Papenfuss, Anthony T -- Wakefield, Matthew J -- Olender, Tsviya -- Lancet, Doron -- Huttley, Gavin A -- Smit, Arian F A -- Pask, Andrew -- Temple-Smith, Peter -- Batzer, Mark A -- Walker, Jerilyn A -- Konkel, Miriam K -- Harris, Robert S -- Whittington, Camilla M -- Wong, Emily S W -- Gemmell, Neil J -- Buschiazzo, Emmanuel -- Vargas Jentzsch, Iris M -- Merkel, Angelika -- Schmitz, Juergen -- Zemann, Anja -- Churakov, Gennady -- Kriegs, Jan Ole -- Brosius, Juergen -- Murchison, Elizabeth P -- Sachidanandam, Ravi -- Smith, Carly -- Hannon, Gregory J -- Tsend-Ayush, Enkhjargal -- McMillan, Daniel -- Attenborough, Rosalind -- Rens, Willem -- Ferguson-Smith, Malcolm -- Lefevre, Christophe M -- Sharp, Julie A -- Nicholas, Kevin R -- Ray, David A -- Kube, Michael -- Reinhardt, Richard -- Pringle, Thomas H -- Taylor, James -- Jones, Russell C -- Nixon, Brett -- Dacheux, Jean-Louis -- Niwa, Hitoshi -- Sekita, Yoko -- Huang, Xiaoqiu -- Stark, Alexander -- Kheradpour, Pouya -- Kellis, Manolis -- Flicek, Paul -- Chen, Yuan -- Webber, Caleb -- Hardison, Ross -- Nelson, Joanne -- Hallsworth-Pepin, Kym -- Delehaunty, Kim -- Markovic, Chris -- Minx, Pat -- Feng, Yucheng -- Kremitzki, Colin -- Mitreva, Makedonka -- Glasscock, Jarret -- Wylie, Todd -- Wohldmann, Patricia -- Thiru, Prathapan -- Nhan, Michael N -- Pohl, Craig S -- Smith, Scott M -- Hou, Shunfeng -- Nefedov, Mikhail -- de Jong, Pieter J -- Renfree, Marilyn B -- Mardis, Elaine R -- Wilson, Richard K -- 062023/Wellcome Trust/United Kingdom -- HG002238/HG/NHGRI NIH HHS/ -- MC_U137761446/Medical Research Council/United Kingdom -- P01 CA013106/CA/NCI NIH HHS/ -- P01 CA013106-37/CA/NCI NIH HHS/ -- R01 GM59290/GM/NIGMS NIH HHS/ -- R01 HG002939/HG/NHGRI NIH HHS/ -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-02/HG/NHGRI NIH HHS/ -- R01HG02385/HG/NHGRI NIH HHS/ -- Medical Research Council/United Kingdom -- England -- Nature. 2008 May 8;453(7192):175-83. doi: 10.1038/nature06936.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Sequencing Center, Washington University School of Medicine, Campus Box 8501, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. wwarren@wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18464734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Dentition ; *Evolution, Molecular ; Female ; Genome/*genetics ; Genomic Imprinting/genetics ; Humans ; Immunity/genetics ; Male ; Mammals/genetics ; MicroRNAs/genetics ; Milk Proteins/genetics ; Phylogeny ; Platypus/*genetics/immunology/physiology ; Receptors, Odorant/genetics ; Repetitive Sequences, Nucleic Acid/genetics ; Reptiles/genetics ; Sequence Analysis, DNA ; Spermatozoa/metabolism ; Venoms/genetics ; Zona Pellucida/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 8
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    Sequencing the nuclear genome of the extinct woolly mammoth (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-11-21
    Description: In 1994, two independent groups extracted DNA from several Pleistocene epoch mammoths and noted differences among individual specimens. Subsequently, DNA sequences have been published for a number of extinct species. However, such ancient DNA is often fragmented and damaged, and studies to date have typically focused on short mitochondrial sequences, never yielding more than a fraction of a per cent of any nuclear genome. Here we describe 4.17 billion bases (Gb) of sequence from several mammoth specimens, 3.3 billion (80%) of which are from the woolly mammoth (Mammuthus primigenius) genome and thus comprise an extensive set of genome-wide sequence from an extinct species. Our data support earlier reports that elephantid genomes exceed 4 Gb. The estimated divergence rate between mammoth and African elephant is half of that between human and chimpanzee. The observed number of nucleotide differences between two particular mammoths was approximately one-eighth of that between one of them and the African elephant, corresponding to a separation between the mammoths of 1.5-2.0 Myr. The estimated probability that orthologous elephant and mammoth amino acids differ is 0.002, corresponding to about one residue per protein. Differences were discovered between mammoth and African elephant in amino-acid positions that are otherwise invariant over several billion years of combined mammalian evolution. This study shows that nuclear genome sequencing of extinct species can reveal population differences not evident from the fossil record, and perhaps even discover genetic factors that affect extinction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Webb -- Drautz, Daniela I -- Ratan, Aakrosh -- Pusey, Barbara -- Qi, Ji -- Lesk, Arthur M -- Tomsho, Lynn P -- Packard, Michael D -- Zhao, Fangqing -- Sher, Andrei -- Tikhonov, Alexei -- Raney, Brian -- Patterson, Nick -- Lindblad-Toh, Kerstin -- Lander, Eric S -- Knight, James R -- Irzyk, Gerard P -- Fredrikson, Karin M -- Harkins, Timothy T -- Sheridan, Sharon -- Pringle, Tom -- Schuster, Stephan C -- HG002238/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Nov 20;456(7220):387-90. doi: 10.1038/nature07446.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pennsylvania State University, Center for Comparative Genomics and Bioinformatics, 310 Wartik Building, University Park, Pennsylvania 16802, USA. webb@bx.psu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19020620" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Cell Nucleus/*genetics ; Conserved Sequence/genetics ; Elephants/anatomy & histology/*genetics ; *Evolution, Molecular ; *Extinction, Biological ; Female ; *Fossils ; Genome/*genetics ; *Genomics ; Hair/metabolism ; Humans ; India ; Male ; Phylogeny ; Sequence Analysis, DNA/*methods
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    The role of the orbitofrontal cortex in the pursuit of happiness and more specific rewards (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-06-20
    Description: Cues that reliably predict rewards trigger the thoughts and emotions normally evoked by those rewards. Humans and other animals will work, often quite hard, for these cues. This is termed conditioned reinforcement. The ability to use conditioned reinforcers to guide our behaviour is normally beneficial; however, it can go awry. For example, corporate icons, such as McDonald's Golden Arches, influence consumer behaviour in powerful and sometimes surprising ways, and drug-associated cues trigger relapse to drug seeking in addicts and animals exposed to addictive drugs, even after abstinence or extinction. Yet, despite their prevalence, it is not known how conditioned reinforcers control human or other animal behaviour. One possibility is that they act through the use of the specific rewards they predict; alternatively, they could control behaviour directly by activating emotions that are independent of any specific reward. In other words, the Golden Arches may drive business because they evoke thoughts of hamburgers and fries, or instead, may be effective because they also evoke feelings of hunger or happiness. Moreover, different brain circuits could support conditioned reinforcement mediated by thoughts of specific outcomes versus more general affective information. Here we have attempted to address these questions in rats. Rats were trained to learn that different cues predicted different rewards using specialized conditioning procedures that controlled whether the cues evoked thoughts of specific outcomes or general affective representations common to different outcomes. Subsequently, these rats were given the opportunity to press levers to obtain short and otherwise unrewarded presentations of these cues. We found that rats were willing to work for cues that evoked either outcome-specific or general affective representations. Furthermore the orbitofrontal cortex, a prefrontal region important for adaptive decision-making, was critical for the former but not for the latter form of conditioned reinforcement.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2727745/" 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/PMC2727745/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burke, Kathryn A -- Franz, Theresa M -- Miller, Danielle N -- Schoenbaum, Geoffrey -- R01 DA015718/DA/NIDA NIH HHS/ -- R01 DA015718-06A2/DA/NIDA NIH HHS/ -- England -- Nature. 2008 Jul 17;454(7202):340-4. doi: 10.1038/nature06993. Epub 2008 Jun 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Neuroscience, University of Maryland School of Medicine, 20 Penn Street, HSF-2 S251 Baltimore, Maryland 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18563088" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/*physiology ; Conditioning, Classical/physiology ; Cues ; Frontal Lobe/drug effects/*physiology ; Happiness ; Male ; Neurotoxins/pharmacology ; Prefrontal Cortex/drug effects/physiology ; Rats ; *Reward
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    Rapamycin fed late in life extends lifespan in genetically heterogeneous mice (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-07-10
    Description: Inhibition of the TOR signalling pathway by genetic or pharmacological intervention extends lifespan in invertebrates, including yeast, nematodes and fruitflies; however, whether inhibition of mTOR signalling can extend lifespan in a mammalian species was unknown. Here we report that rapamycin, an inhibitor of the mTOR pathway, extends median and maximal lifespan of both male and female mice when fed beginning at 600 days of age. On the basis of age at 90% mortality, rapamycin led to an increase of 14% for females and 9% for males. The effect was seen at three independent test sites in genetically heterogeneous mice, chosen to avoid genotype-specific effects on disease susceptibility. Disease patterns of rapamycin-treated mice did not differ from those of control mice. In a separate study, rapamycin fed to mice beginning at 270 days of age also increased survival in both males and females, based on an interim analysis conducted near the median survival point. Rapamycin may extend lifespan by postponing death from cancer, by retarding mechanisms of ageing, or both. To our knowledge, these are the first results to demonstrate a role for mTOR signalling in the regulation of mammalian lifespan, as well as pharmacological extension of lifespan in both genders. These findings have implications for further development of interventions targeting mTOR for the treatment and prevention of age-related diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2786175/" 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/PMC2786175/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harrison, David E -- Strong, Randy -- Sharp, Zelton Dave -- Nelson, James F -- Astle, Clinton M -- Flurkey, Kevin -- Nadon, Nancy L -- Wilkinson, J Erby -- Frenkel, Krystyna -- Carter, Christy S -- Pahor, Marco -- Javors, Martin A -- Fernandez, Elizabeth -- Miller, Richard A -- AG022303/AG/NIA NIH HHS/ -- AG022307/AG/NIA NIH HHS/ -- AG022308/AG/NIA NIH HHS/ -- AG025707/AG/NIA NIH HHS/ -- AG13319/AG/NIA NIH HHS/ -- P30 AG013319/AG/NIA NIH HHS/ -- P30 AG013319-119002/AG/NIA NIH HHS/ -- P30 AG013319-129002/AG/NIA NIH HHS/ -- P30 AG013319-139002/AG/NIA NIH HHS/ -- P30 AG013319-149002/AG/NIA NIH HHS/ -- P30 AG025707/AG/NIA NIH HHS/ -- U01 AG022303/AG/NIA NIH HHS/ -- U01 AG022307/AG/NIA NIH HHS/ -- U01 AG022307-01/AG/NIA NIH HHS/ -- U01 AG022307-02/AG/NIA NIH HHS/ -- U01 AG022307-03/AG/NIA NIH HHS/ -- U01 AG022307-04/AG/NIA NIH HHS/ -- U01 AG022307-05/AG/NIA NIH HHS/ -- U01 AG022307-05S1/AG/NIA NIH HHS/ -- U01 AG022308/AG/NIA NIH HHS/ -- England -- Nature. 2009 Jul 16;460(7253):392-5. doi: 10.1038/nature08221. Epub 2009 Jul 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Jackson Laboratory, Bar Harbor, Maine 04609, USA. david.harrison@jax.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19587680" target="_blank"〉PubMed〈/a〉
    Keywords: Administration, Oral ; Aging/*drug effects/genetics/*physiology ; Animals ; Carrier Proteins/antagonists & inhibitors/metabolism ; Diet ; Disease Susceptibility ; Female ; Longevity/*drug effects/*genetics/physiology ; Male ; Mice ; Phosphotransferases (Alcohol Group Acceptor)/antagonists & inhibitors/metabolism ; Sirolimus/*administration & dosage/*pharmacology ; Specific Pathogen-Free Organisms ; Survival Analysis ; TOR Serine-Threonine Kinases ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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