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  • 1
    Publication Date: 2014-07-11
    Description: Human pluripotent stem cells hold potential for regenerative medicine, but available cell types have significant limitations. Although embryonic stem cells (ES cells) from in vitro fertilized embryos (IVF ES cells) represent the 'gold standard', they are allogeneic to patients. Autologous induced pluripotent stem cells (iPS cells) are prone to epigenetic and transcriptional aberrations. To determine whether such abnormalities are intrinsic to somatic cell reprogramming or secondary to the reprogramming method, genetically matched sets of human IVF ES cells, iPS cells and nuclear transfer ES cells (NT ES cells) derived by somatic cell nuclear transfer (SCNT) were subjected to genome-wide analyses. Both NT ES cells and iPS cells derived from the same somatic cells contained comparable numbers of de novo copy number variations. In contrast, DNA methylation and transcriptome profiles of NT ES cells corresponded closely to those of IVF ES cells, whereas iPS cells differed and retained residual DNA methylation patterns typical of parental somatic cells. Thus, human somatic cells can be faithfully reprogrammed to pluripotency by SCNT and are therefore ideal for cell replacement therapies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, Hong -- Morey, Robert -- O'Neil, Ryan C -- He, Yupeng -- Daughtry, Brittany -- Schultz, Matthew D -- Hariharan, Manoj -- Nery, Joseph R -- Castanon, Rosa -- Sabatini, Karen -- Thiagarajan, Rathi D -- Tachibana, Masahito -- Kang, Eunju -- Tippner-Hedges, Rebecca -- Ahmed, Riffat -- Gutierrez, Nuria Marti -- Van Dyken, Crystal -- Polat, Alim -- Sugawara, Atsushi -- Sparman, Michelle -- Gokhale, Sumita -- Amato, Paula -- Wolf, Don P -- Ecker, Joseph R -- Laurent, Louise C -- Mitalipov, Shoukhrat -- Howard Hughes Medical Institute/ -- England -- Nature. 2014 Jul 10;511(7508):177-83. doi: 10.1038/nature13551. Epub 2014 Jul 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Center for Embryonic Cell and Gene Therapy, Oregon Health & Science University, 3303 Southwest Bond Avenue, Portland, Oregon 97239, USA [2] Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, 505 Northwest 185th Avenue, Beaverton, Oregon 97006, USA [3]. ; 1] Department of Reproductive Medicine, University of California, San Diego, Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, California 92037, USA [2]. ; 1] Genomic Analysis Laboratory, the Salk Institute for Biological Studies, La Jolla, California 92037, USA [2] Bioinformatics Program, University of California at San Diego, La Jolla, California 92093, USA. ; 1] Center for Embryonic Cell and Gene Therapy, Oregon Health & Science University, 3303 Southwest Bond Avenue, Portland, Oregon 97239, USA [2] Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, 505 Northwest 185th Avenue, Beaverton, Oregon 97006, USA. ; Genomic Analysis Laboratory, the Salk Institute for Biological Studies, La Jolla, California 92037, USA. ; Department of Reproductive Medicine, University of California, San Diego, Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, California 92037, USA. ; 1] Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, 505 Northwest 185th Avenue, Beaverton, Oregon 97006, USA [2] Department of Obstetrics and Gynecology, South Miyagi Medical Center, Shibata-gun, Miyagi 989-1253, Japan (M.T.); Department of Cell and Molecular Biology, Karolinska Institutet, SE-17177 Stockholm, Sweden (A.P.). ; Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, 505 Northwest 185th Avenue, Beaverton, Oregon 97006, USA. ; University Pathologists LLC, Boston University School of Medicine, Roger Williams Medical Center, Providence, Rhode Island 02118, USA. ; Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Oregon Health & Science University, 3181 Southwest Sam Jackson Park Road, Portland, Oregon 97239, USA. ; 1] Genomic Analysis Laboratory, the Salk Institute for Biological Studies, La Jolla, California 92037, USA [2] Howard Hughes Medical Institute, the Salk Institute for Biological Studies, La Jolla, California 92037, USA. ; 1] Center for Embryonic Cell and Gene Therapy, Oregon Health & Science University, 3303 Southwest Bond Avenue, Portland, Oregon 97239, USA [2] Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, 505 Northwest 185th Avenue, Beaverton, Oregon 97006, USA [3] Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Oregon Health & Science University, 3181 Southwest Sam Jackson Park Road, Portland, Oregon 97239, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25008523" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Cellular Reprogramming ; Chromosome Aberrations ; Chromosomes, Human, X/genetics/metabolism ; DNA Copy Number Variations ; DNA Methylation ; Genome-Wide Association Study ; Genomic Imprinting ; Humans ; Nuclear Transfer Techniques/standards ; Pluripotent Stem Cells/cytology/*metabolism ; Transcriptome
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2013-06-19
    Description: Our paper (1) was undertaken to challenge earlier reports that low salinity stress increases brevetoxin production in Karenia brevis (2). Despite independent negative findings by three laboratories (1), Errera and Campbell still assert that low salinity shock increases cellular brevetoxins (3). Their initial report of 〉14-fold increases (2) lacks experimental...
    Keywords: Letters
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1978-09-22
    Description: Parameters of bone formation and resorption were measured in rats orbited for 19.5 days aboard the Soviet Cosmos 782 biological satellite. The most striking effects were on bone formation. During flight, rats formed significantly less periosteal bone than did control rats on the ground. An arrest line at both the periosteum and the endosteum of flight animals suggest that a complete cessation of bone growth occurred. During a 26-day postflight period, the defect in bone formation was corrected. No significant changes in bone resorption were observed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morey, E R -- Baylink, D J -- New York, N.Y. -- Science. 1978 Sep 22;201(4361):1138-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/150643" target="_blank"〉PubMed〈/a〉
    Keywords: *Aerospace Medicine ; Animals ; *Bone Development ; Bone Matrix/physiology ; Bone Resorption ; Male ; Periosteum/physiology ; Rats ; *Space Flight ; Specific Pathogen-Free Organisms ; Tetracycline ; Tibia/cytology/growth & development/physiology ; Time Factors ; Weightlessness
    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
    Publication Date: 2015-07-16
    Description: Mitochondria have a major role in energy production via oxidative phosphorylation, which is dependent on the expression of critical genes encoded by mitochondrial (mt)DNA. Mutations in mtDNA can cause fatal or severely debilitating disorders with limited treatment options. Clinical manifestations vary based on mutation type and heteroplasmy (that is, the relative levels of mutant and wild-type mtDNA within each cell). Here we generated genetically corrected pluripotent stem cells (PSCs) from patients with mtDNA disease. Multiple induced pluripotent stem (iPS) cell lines were derived from patients with common heteroplasmic mutations including 3243A〉G, causing mitochondrial encephalomyopathy and stroke-like episodes (MELAS), and 8993T〉G and 13513G〉A, implicated in Leigh syndrome. Isogenic MELAS and Leigh syndrome iPS cell lines were generated containing exclusively wild-type or mutant mtDNA through spontaneous segregation of heteroplasmic mtDNA in proliferating fibroblasts. Furthermore, somatic cell nuclear transfer (SCNT) enabled replacement of mutant mtDNA from homoplasmic 8993T〉G fibroblasts to generate corrected Leigh-NT1 PSCs. Although Leigh-NT1 PSCs contained donor oocyte wild-type mtDNA (human haplotype D4a) that differed from Leigh syndrome patient haplotype (F1a) at a total of 47 nucleotide sites, Leigh-NT1 cells displayed transcriptomic profiles similar to those in embryo-derived PSCs carrying wild-type mtDNA, indicative of normal nuclear-to-mitochondrial interactions. Moreover, genetically rescued patient PSCs displayed normal metabolic function compared to impaired oxygen consumption and ATP production observed in mutant cells. We conclude that both reprogramming approaches offer complementary strategies for derivation of PSCs containing exclusively wild-type mtDNA, through spontaneous segregation of heteroplasmic mtDNA in individual iPS cell lines or mitochondrial replacement by SCNT in homoplasmic mtDNA-based disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, Hong -- Folmes, Clifford D L -- Wu, Jun -- Morey, Robert -- Mora-Castilla, Sergio -- Ocampo, Alejandro -- Ma, Li -- Poulton, Joanna -- Wang, Xinjian -- Ahmed, Riffat -- Kang, Eunju -- Lee, Yeonmi -- Hayama, Tomonari -- Li, Ying -- Van Dyken, Crystal -- Gutierrez, Nuria Marti -- Tippner-Hedges, Rebecca -- Koski, Amy -- Mitalipov, Nargiz -- Amato, Paula -- Wolf, Don P -- Huang, Taosheng -- Terzic, Andre -- Laurent, Louise C -- Izpisua Belmonte, Juan Carlos -- Mitalipov, Shoukhrat -- England -- Nature. 2015 Aug 13;524(7564):234-8. doi: 10.1038/nature14546. Epub 2015 Jul 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Center for Embryonic Cell and Gene Therapy, Oregon Health &Science University, 3303 S.W. Bond Avenue, Portland, Oregon 97239, USA [2] Division of Reproductive &Developmental Sciences, Oregon National Primate Research Center, Oregon Health &Science University, 505 N.W. 185th Avenue, Beaverton, Oregon 97006, USA. ; Center for Regenerative Medicine and Department of Medicine, Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota 55905, USA. ; Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, California 92037, USA. ; Department of Reproductive Medicine, University of California, San Diego, Sanford Consortium for Regenerative Medicine, 2880 Torrey Pines Scenic Drive, La Jolla, California 92037, USA. ; Department of Obstetrics and Gynaecology, John Radcliffe Hospital, University of Oxford, Headington, Oxford OX3 9DU, UK. ; Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio 45229, USA. ; Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Oregon Health and Science University, 3181 Southwest Sam Jackson Park Road, Portland, Oregon 97239, USA. ; Division of Reproductive &Developmental Sciences, Oregon National Primate Research Center, Oregon Health &Science University, 505 N.W. 185th Avenue, Beaverton, Oregon 97006, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26176921" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Animals ; Cell Line ; DNA, Mitochondrial/*genetics ; Embryo, Mammalian/cytology ; Fibroblasts/cytology/metabolism/pathology ; Gene Expression Profiling ; Haplotypes/genetics ; Humans ; Induced Pluripotent Stem Cells/*metabolism ; Leigh Disease/genetics/metabolism/pathology ; Mice ; Mitochondria/*genetics/*metabolism/pathology ; Mitochondrial Diseases/*genetics/*metabolism/pathology ; Mitochondrial Encephalomyopathies/genetics/metabolism/pathology ; Mutation/genetics ; Nuclear Transfer Techniques ; Nucleotides/genetics ; Oxygen Consumption ; Polymorphism, Single Nucleotide/genetics ; Sequence Analysis, RNA ; Skin/cytology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2013-06-19
    Description: With the global proliferation of toxic harmful algal bloom species, there is a need to identify the environmental and biological factors that regulate toxin production. One such species, Karenia brevis, forms nearly annual blooms that threaten coastal regions throughout the Gulf of Mexico. This dinoflagellate produces brevetoxins, which are potent...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 6
    Publication Date: 2016-12-17
    Description: Author(s): K. W. Plumb, J. R. Morey, J. A. Rodriguez-Rivera, Hui Wu, A. A. Podlesnyak, T. M. McQueen, and C. L. Broholm Spin-orbital interactions are of significant interest in condensed matter physics. Now, researchers show how spin and orbital order coexist in FeSc 2 S 4 . [Phys. Rev. X 6, 041055] Published Fri Dec 16, 2016
    Electronic ISSN: 2160-3308
    Topics: Physics
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  • 7
    Publication Date: 2015-03-05
    Description: Article The molecular basis for the high toxicity of cadmium is unclear. Here, Begg et al . use the bacterium Streptococcus pneumoniae as a model system, and show that cadmium uptake increases sensitivity to oxidative stress by reducing intracellular concentrations of manganese and zinc through different mechanisms. Nature Communications doi: 10.1038/ncomms7418 Authors: Stephanie L. Begg, Bart A. Eijkelkamp, Zhenyao Luo, Rafael M. Couñago, Jacqueline R. Morey, Megan J. Maher, Cheryl-lynn Y. Ong, Alastair G. McEwan, Bostjan Kobe, Megan L. O’Mara, James C. Paton, Christopher A. McDevitt
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Annals of operations research 2 (1984), S. 139-156 
    ISSN: 1572-9338
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Economics
    Type of Medium: Electronic Resource
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  • 9
    Publication Date: 2008-04-17
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 10
    Publication Date: 2016-01-30
    Description: Openness is one of the central values of science. Open scientific practices such as sharing data, materials and analysis scripts alongside published articles have many benefits, including easier replication and extension studies, increased availability of data for theory-building and meta-analysis, and increased possibility of review and collaboration even after a paper has been published. Although modern information technology makes sharing easier than ever before, uptake of open practices had been slow. We suggest this might be in part due to a social dilemma arising from misaligned incentives and propose a specific, concrete mechanism—reviewers withholding comprehensive review—to achieve the goal of creating the expectation of open practices as a matter of scientific principle.
    Electronic ISSN: 2054-5703
    Topics: Natural Sciences in General
    Published by Royal Society
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