De-Extinction and the Genomics Revolution Life on Demand
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Mg2sio4) in a H2O-H2 Gas DANIEL TABERSKY1, NORMAN LUECHINGER2, SAMUEL S
Goldschmidt2013 Conference Abstracts 2297 Compacted Nanoparticles for Evaporation behavior of forsterite Quantification in LA-ICPMS (Mg2SiO4) in a H2O-H2 gas DANIEL TABERSKY1, NORMAN LUECHINGER2, SAMUEL S. TACHIBANA1* AND A. TAKIGAWA2 2 2 1 , HALIM , MICHAEL ROSSIER AND DETLEF GÜNTHER * 1 Department of Natural History Sciences, Hokkaido 1ETH Zurich, Department of Chemistry and Applied University, N10 W8, Sapporo 060-0810, Japan. Biosciences, Laboratory of Inorganic Chemistry (*correspondence: [email protected]) (*correspondence: [email protected]) 2Carnegie Institution of Washington, Department of Terrestrial 2Nanograde, Staefa, Switzerland Magnetism, 5241 Broad Branch Road NW, Washington DC, 20015 USA. Gray et al. did first studies of LA-ICPMS in 1985 [1]. Ever since, extensive research has been performed to Forsterite (Mg2SiO4) is one of the most abundant overcome the problem of so-called “non-stoichiometric crystalline silicates in extraterrestrial materials and in sampling” and/or analysis, the origins of which are commonly circumstellar environments, and its evaporation behavior has referred to as elemental fractionation (EF). EF mainly consists been intensively studied in vacuum and in the presence of of laser-, transport- and ICP-induced effects, and often results low-pressure hydrogen gas [e.g., 1-4]. It has been known that in inaccurate analyses as pointed out in, e.g. references [2,3]. the evaporation rate of forsterite is controlled by a A major problem that has to be addressed is the lack of thermodynamic driving force (i.e., equilibrium vapor reference materials. Though the glass series of NIST SRM 61x pressure), and the evaporation rate increases linearly with 1/2 have been the most commonly reference material used in LA- pH2 in the presence of hydrogen gas due to the increase of ICPMS, heterogeneities have been reported for some sample the equilibrium vapor pressure. -
Developing a Better Breeding Program
Pedigree Analysis and How Breeding Decisions Affect Genes Jerold S Bell DVM, Clinical Associate Professor of Genetics, Tufts Cummings School of Veterinary Medicine To some breeders, determining which traits will appear in may be phenotypically uniform, but will rarely breed true due the offspring of a mating is like rolling the dice - a to the mix of dissimilar genes. combination of luck and chance. For others, producing certain traits involves more skill than luck - the result of One reason to outbreed would be to bring in new traits that careful study and planning. As breeders, you must your breeding stock does not possess. While the parents may understand how matings manipulate genes within your be genetically dissimilar, you should choose a mate that breeding stock to produce the kinds of offspring you desire. corrects your breeding animal's faults but complements its good traits. It is not unusual to produce an excellent quality When evaluating your breeding program, remember that individual from an outbred litter. The abundance of genetic most traits you're seeking cannot be changed, fixed or variability can place all the right pieces in one individual. created in a single generation. The more information you Many top-winning show animals are outbred. Consequently, can obtain on how certain traits have been transmitted by however, they may have low inbreeding coefficients and may your animal's ancestors, the better you can prioritize your lack the ability to uniformly pass on their good traits to their breeding goals. Tens of thousands of genes interact to offspring. After an outbreeding, breeders may want to breed produce a single individual. -
Widespread Gene Transfection Into the Central Nervous System of Primates
Gene Therapy (2000) 7, 759–763 2000 Macmillan Publishers Ltd All rights reserved 0969-7128/00 $15.00 www.nature.com/gt NONVIRAL TRANSFER TECHNOLOGY RESEARCH ARTICLE Widespread gene transfection into the central nervous system of primates Y Hagihara1, Y Saitoh1, Y Kaneda2, E Kohmura1 and T Yoshimine1 1Department of Neurosurgery and 2Division of Gene Therapy Science, Department of Molecular Therapeutics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan We attempted in vivo gene transfection into the central ner- The lacZ gene was highly expressed in the medial temporal vous system (CNS) of non-human primates using the hem- lobe, brainstem, Purkinje cells of cerebellar vermis and agglutinating virus of Japan (HVJ)-AVE liposome, a newly upper cervical cord (29.0 to 59.4% of neurons). Intrastriatal constructed anionic type liposome with a lipid composition injection of an HVJ-AVE liposome–lacZ complex made a similar to that of HIV envelopes and coated by the fusogenic focal transfection around the injection sites up to 15 mm. We envelope proteins of inactivated HVJ. HVJ-AVE liposomes conclude that the infusion of HVJ-AVE liposomes into the containing the lacZ gene were applied intrathecally through cerebrospinal fluid (CSF) space is applicable for widespread the cisterna magna of Japanese macaques. Widespread gene delivery into the CNS of large animals. Gene Therapy transgene expression was observed mainly in the neurons. (2000) 7, 759–763. Keywords: central nervous system; primates; gene therapy; HVJ liposome Introduction ever, its efficiency has not been satisfactory in vivo. Recently HVJ-AVE liposome, a new anionic-type lipo- Despite the promising results in experimental animals, some with the envelope that mimics the human immuno- gene therapy has, so far, not been successful in clinical deficiency virus (HIV), has been developed.13 Based upon 1 situations. -
Recombinant DNA and Elements Utilizing Recombinant DNA Such As Plasmids and Viral Vectors, and the Application of Recombinant DNA Techniques in Molecular Biology
Fact Sheet Describing Recombinant DNA and Elements Utilizing Recombinant DNA Such as Plasmids and Viral Vectors, and the Application of Recombinant DNA Techniques in Molecular Biology Compiled and/or written by Amy B. Vento and David R. Gillum Office of Environmental Health and Safety University of New Hampshire June 3, 2002 Introduction Recombinant DNA (rDNA) has various definitions, ranging from very simple to strangely complex. The following are three examples of how recombinant DNA is defined: 1. A DNA molecule containing DNA originating from two or more sources. 2. DNA that has been artificially created. It is DNA from two or more sources that is incorporated into a single recombinant molecule. 3. According to the NIH guidelines, recombinant DNA are molecules constructed outside of living cells by joining natural or synthetic DNA segments to DNA molecules that can replicate in a living cell, or molecules that result from their replication. Description of rDNA Recombinant DNA, also known as in vitro recombination, is a technique involved in creating and purifying desired genes. Molecular cloning (i.e. gene cloning) involves creating recombinant DNA and introducing it into a host cell to be replicated. One of the basic strategies of molecular cloning is to move desired genes from a large, complex genome to a small, simple one. The process of in vitro recombination makes it possible to cut different strands of DNA, in vitro (outside the cell), with a restriction enzyme and join the DNA molecules together via complementary base pairing. Techniques Some of the molecular biology techniques utilized during recombinant DNA include: 1. -
REVIEW Gene Therapy
Leukemia (2001) 15, 523–544 2001 Nature Publishing Group All rights reserved 0887-6924/01 $15.00 www.nature.com/leu REVIEW Gene therapy: principles and applications to hematopoietic cells VFI Van Tendeloo1,2, C Van Broeckhoven2 and ZN Berneman1 1Laboratory of Experimental Hematology, University of Antwerp (UIA), Antwerp University Hospital (UZA), Antwerp; and 2Laboratory of Molecular Genetics, University of Antwerp (UIA), Department of Molecular Genetics, Flanders Interuniversity Institute for Biotechnology (VIB), Antwerp, Belgium Ever since the development of technology allowing the transfer Recombinant viral vectors of new genes into eukaryotic cells, the hematopoietic system has been an obvious and desirable target for gene therapy. The last 10 years have witnessed an explosion of interest in this Biological gene transfer methods make use of modified DNA approach to treat human disease, both inherited and acquired, or RNA viruses to infect the cell, thereby introducing and with the initiation of multiple clinical protocols. All gene ther- expressing its genome which contains the gene of interest (= apy strategies have two essential technical requirements. ‘transduction’).1 The most commonly used viral vectors are These are: (1) the efficient introduction of the relevant genetic discussed below. In each case, recombinant viruses have had material into the target cell and (2) the expression of the trans- gene at therapeutic levels. Conceptual and technical hurdles the genes encoding essential replicative and/or packaging pro- involved with these requirements are still the objects of active teins replaced by the gene of interest. Advantages and disad- research. To date, the most widely used and best understood vantages of each recombinant viral vector are summarized in vectors for gene transfer in hematopoietic cells are derived Table 1. -
Gene Therapy and Genetic Engineering: Frankenstein Is Still a Myth, but It Should Be Reread Periodically
Indiana Law Journal Volume 48 Issue 4 Article 2 Summer 1973 Gene Therapy and Genetic Engineering: Frankenstein is Still a Myth, but it Should be Reread Periodically George A. Hudock Indiana University - Bloomington Follow this and additional works at: https://www.repository.law.indiana.edu/ilj Part of the Genetics and Genomics Commons Recommended Citation Hudock, George A. (1973) "Gene Therapy and Genetic Engineering: Frankenstein is Still a Myth, but it Should be Reread Periodically," Indiana Law Journal: Vol. 48 : Iss. 4 , Article 2. Available at: https://www.repository.law.indiana.edu/ilj/vol48/iss4/2 This Article is brought to you for free and open access by the Law School Journals at Digital Repository @ Maurer Law. It has been accepted for inclusion in Indiana Law Journal by an authorized editor of Digital Repository @ Maurer Law. For more information, please contact [email protected]. GENE THERAPY AND GENETIC ENGINEERING: FRANKENSTEIN IS STILL A MYTH, BUT IT SHOULD BE REREAD PERIODICALLY GEORGE A. HUDOCKt Biotechnology and the law are far removed from each other as disciplines of human intellect. Yet the law and my own discipline, genetics, have come together in many courtrooms concerning such matters as paternity, and they will continue to intersect with increasing frequency as the visions of 100 years ago become the reality of today. This article examines the implications of recent research for human genetic therapy and genetic engineering, and suggests some guidelines for legal regulation of genetic technology. The following discussion derives from three premises which I view as basic: (1) that which is currently possible in genetic engineering, and in fact has already been done, is generally underestimated; (2) what may be possible in the near future is quite commonly overesti- mated; (3) regulation of the application of genetic technology is possible and will not be overwhelmingly complicated. -
Getting Her Bred Continued from Page 67
Advice for ensuring your females breed with ease. by Christy Couch Lee h, if only there was a magic wand to ensure Oa female — whether a first-calf heifer or a mature cow — would breed on the first try, every time. Alas, there is not. “Successful breeding is a combination of things done way ahead of breeding season, and things done at the moment of inseminating a female,” says Max Stotz, GKB Cattle, Waxahachie, Texas. “But there is no magic key. It’s simply a combination of many things that I’ve found over the years to be helpful in accomplishing the goal.” Through trial and error and decades in the business, Stotz; Marty Lueck, Journagan Ranch/ Missouri State University (MSU), Springfield, Mo.; and Kyle Gillooly, CES Polled Herefords, Wadley, Ga., say they’ve discovered what works for their operations and for their regions of the country. Stotz has been involved in the Hereford industry since childhood. After graduating from The Ohio State University, he began working for Ace Cattle Co., which became Star Lake Cattle Ranch. Last year, he began managing the cow herd at GKB. For 32 years, Lueck has overseen Journagan’s 3,300 acres and 480 purebred and 150 commercial cows Getting with four employees. Each year, the operation hosts an annual sale and markets up to 100 bulls through the sale and private treaty. Gillooly was raised in the Hereford and Angus business in Indiana. He met his wife, Jennifer, while showing Herefords, and when they were married in 2006, he began managing her grandfather’s Her Bred cattle operation. -
General Anesthesia and Altered States of Arousal: a Systems Neuroscience Analysis
General Anesthesia and Altered States of Arousal: A Systems Neuroscience Analysis The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Brown, Emery N., Patrick L. Purdon, and Christa J. Van Dort. “General Anesthesia and Altered States of Arousal: A Systems Neuroscience Analysis.” Annual Review of Neuroscience 34, no. 1 (July 21, 2011): 601–628. As Published http://dx.doi.org/10.1146/annurev-neuro-060909-153200 Publisher Annual Reviews Version Author's final manuscript Citable link http://hdl.handle.net/1721.1/86331 Terms of Use Creative Commons Attribution-Noncommercial-Share Alike Detailed Terms http://creativecommons.org/licenses/by-nc-sa/4.0/ NIH Public Access Author Manuscript Annu Rev Neurosci. Author manuscript; available in PMC 2012 July 06. NIH-PA Author ManuscriptPublished NIH-PA Author Manuscript in final edited NIH-PA Author Manuscript form as: Annu Rev Neurosci. 2011 ; 34: 601–628. doi:10.1146/annurev-neuro-060909-153200. General Anesthesia and Altered States of Arousal: A Systems Neuroscience Analysis Emery N. Brown1,2,3, Patrick L. Purdon1,2, and Christa J. Van Dort1,2 Emery N. Brown: [email protected]; Patrick L. Purdon: [email protected]; Christa J. Van Dort: [email protected] 1Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114 2Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 3Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Abstract Placing a patient in a state of general anesthesia is crucial for safely and humanely performing most surgical and many nonsurgical procedures. -
Migration: on the Move in Alaska
National Park Service U.S. Department of the Interior Alaska Park Science Alaska Region Migration: On the Move in Alaska Volume 17, Issue 1 Alaska Park Science Volume 17, Issue 1 June 2018 Editorial Board: Leigh Welling Jim Lawler Jason J. Taylor Jennifer Pederson Weinberger Guest Editor: Laura Phillips Managing Editor: Nina Chambers Contributing Editor: Stacia Backensto Design: Nina Chambers Contact Alaska Park Science at: [email protected] Alaska Park Science is the semi-annual science journal of the National Park Service Alaska Region. Each issue highlights research and scholarship important to the stewardship of Alaska’s parks. Publication in Alaska Park Science does not signify that the contents reflect the views or policies of the National Park Service, nor does mention of trade names or commercial products constitute National Park Service endorsement or recommendation. Alaska Park Science is found online at: www.nps.gov/subjects/alaskaparkscience/index.htm Table of Contents Migration: On the Move in Alaska ...............1 Future Challenges for Salmon and the Statewide Movements of Non-territorial Freshwater Ecosystems of Southeast Alaska Golden Eagles in Alaska During the A Survey of Human Migration in Alaska's .......................................................................41 Breeding Season: Information for National Parks through Time .......................5 Developing Effective Conservation Plans ..65 History, Purpose, and Status of Caribou Duck-billed Dinosaurs (Hadrosauridae), Movements in Northwest -
Preliminary Note on a Bavelian Fauna from the North Sea with Possibly Two Mammoth Species
Dick Mol 1,2, Klaas Post 1,Jelle W.F.Reumer 1,John de Vos 3 & Cees Laban 4 1 Natuurmuseum Rotterdam 2 Cerpolex, Paris 3 Naturalis, Leiden 4 NITG, Utrecht Het Gat: preliminary note on a Bavelian fauna from the North Sea with possibly two mammoth species Mol, D., Post, K., Reumer, J.W.F., De Vos, J. & Laban, C., 2003 - Het Gat: preliminary note on a Bavelian fauna from the North Sea with possibly two mammoth species - in: Reumer, J.W.F., De Vos, J. & Mol, D. (eds.) - ADVANCES IN MAMMOTH RESEARCH (Proceedings of the Second International Mammoth Conference, Rotterdam, May 16-20 1999) DEINSEA 9: 253 - 266 [ISSN 0923-9308] Published 24 May 2003 We describe the fossil vertebrate remains from a site (‘Het Gat’) on the bottom of the North Sea, between the United Kingdom and the Netherlands. The site is a maximally c. 46 m deep gully that cuts through layers of Holocene and Eemian sediments and reaches into the Yarmouth Roads Formation. This part of the Yarmouth Roads Formation is a complex of fluvial sediments of late Early-Pleistocene, most probably Bavelian, age. The age of the Bavelian is considered to be some 1.000.000 - 750.000 years (1 - 0.75 Ma). As the fossils originate from the Yarmouth Roads Formation, the fauna is thus attributed a late Early Pleistocene age; we correlate it to localities such as Untermassfeld (Germany) and Saint-Prest (France), which both have an estimated age of c. 1 Ma. The faunal content of the site ‘Het Gat’ is provisionally as follows: (Proboscidea) Mammuthus meridionalis and/or Mammuthus trogontherii; (Artiodactyla) Hippopotamus antiquus, Alces lati- frons, Megaloceros dawkinsi, Megaloceros savini, Eucladoceros ctenoides, Bison menneri; (Perissodactyla) Equus major, Stephanorhinus etruscus; (Carnivora) Homotherium cf. -
Elephas Antiquus in Greece: New finds and a Reappraisal of Older Material (Mammalia, Proboscidea, Elephantidae)
Quaternary International xxx (2010) 1e11 Contents lists available at ScienceDirect Quaternary International journal homepage: www.elsevier.com/locate/quaint Elephas antiquus in Greece: New finds and a reappraisal of older material (Mammalia, Proboscidea, Elephantidae) Evangelia Tsoukala a,*, Dick Mol b, Spyridoula Pappa a, Evangelos Vlachos a, Wilrie van Logchem c, Markos Vaxevanopoulos d, Jelle Reumer e a Aristotle University, School of Geology, University campus, 54 124 Thessaloniki, Macedonia, Greece b Natural History Museum Rotterdam and Mammuthus Club International, Gudumholm 41, 2133 HG Hoofddorp, The Netherlands c Mammuthus Club International, Bosuilstraat 12, 4105 WE Culemborg, The Netherlands d Ministry of Culture, Ephorate of Palaeoanthropology-Speleology of Northern Greece, Navarinou 28, 55131, Thessaloniki, Greece e Faculty of Geosciences, Utrecht University and Natural History Museum Rotterdam, PO Box 23452, 3001 KL Rotterdam, The Netherlands article info abstract Article history: This paper briefly describes some recently discovered remains of the straight-tusked elephant, Elephas Available online xxx antiquus, from Greece. Material of this extinct proboscidean was found in four localities in Northern Greece: Kaloneri and Sotiras in Western Macedonia, Xerias in Eastern Macedonia, and Larissa in Thessaly. In addition, published elephant remains from Ambelia, Petres and Perdikas, also from Northern Greece, are reinterpreted and also attributed to E. antiquus. Of all these, the Kaloneri elephant shows an inter- esting paleopathology: it was disabled by a broken right tusk. Ó 2010 Elsevier Ltd and INQUA. All rights reserved. 1. Introduction of E. namadicus comes from India. Maglio (1973) considered the Asiatic form E. namadicus to be a senior synonym of the European Fossil Proboscidea are known from Neogene and Quaternary form E. -
Signs of Biological Activities of 28,000-Year-Old Mammoth Nuclei in Mouse Oocytes Visualized by Live-Cell Imaging
www.nature.com/scientificreports OPEN Signs of biological activities of 28,000-year-old mammoth nuclei in mouse oocytes visualized by Received: 12 October 2018 Accepted: 19 February 2019 live-cell imaging Published: xx xx xxxx Kazuo Yamagata1, Kouhei Nagai1, Hiroshi Miyamoto1, Masayuki Anzai2, Hiromi Kato2, Kei Miyamoto1, Satoshi Kurosaka2, Rika Azuma1, Igor I. Kolodeznikov3, Albert V. Protopopov3, Valerii V. Plotnikov3, Hisato Kobayashi 4, Ryouka Kawahara-Miki 4, Tomohiro Kono4,5, Masao Uchida6, Yasuyuki Shibata6, Tetsuya Handa7, Hiroshi Kimura7, Yoshihiko Hosoi1, Tasuku Mitani1, Kazuya Matsumoto1 & Akira Iritani2 The 28,000-year-old remains of a woolly mammoth, named ‘Yuka’, were found in Siberian permafrost. Here we recovered the less-damaged nucleus-like structures from the remains and visualised their dynamics in living mouse oocytes after nuclear transfer. Proteomic analyses demonstrated the presence of nuclear components in the remains. Nucleus-like structures found in the tissue homogenate were histone- and lamin-positive by immunostaining. In the reconstructed oocytes, the mammoth nuclei showed the spindle assembly, histone incorporation and partial nuclear formation; however, the full activation of nuclei for cleavage was not confrmed. DNA damage levels, which varied among the nuclei, were comparable to those of frozen-thawed mouse sperm and were reduced in some reconstructed oocytes. Our work provides a platform to evaluate the biological activities of nuclei in extinct animal species. Ancient species carry invaluable information about the genetic basis of adaptive evolution and factors related to extinction. Fundamental studies on woolly mammoth (Mammuthus primigenius) genes, including whole genome analyses1–3, led to the reconstitution of mammoth haemoglobin with cold tolerance4 and to an understanding of the expression of mammoth-specifc coat colour5 and temperature-sensitive channels6.