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  • Genetic Vectors  (2)
  • Life Sciences (General)  (2)
  • Catheterization/methods  (1)
  • ENVIRONMENT POLLUTION  (1)
  • 1
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    Grafting genetically modified cells to the damaged brain: restorative effects of NGF expression (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-16
    Description: Fibroblasts were genetically modified to secrete nerve growth factor (NGF) by infection with a retroviral vector and then implanted into the brains of rats that had surgical lesions of the fimbria-fornix. The grafted cells survived and produced sufficient NGF to prevent the degeneration of cholinergic neurons that would die without treatment. In addition, the protected cholinergic cells sprouted axons that projected in the direction of the cellular source of NGF. These results indicate that a combination of gene transfer and intracerebral grafting may provide an effective treatment for some disorders of the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, M B -- Friedmann, T -- Robertson, R C -- Tuszynski, M -- Wolff, J A -- Breakefield, X O -- Gage, F H -- AG06088/AG/NIA NIH HHS/ -- HD20034/HD/NICHD NIH HHS/ -- NS24279/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 16;242(4885):1575-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, University of California School of Medicine, La Jolla 92093.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201248" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholinesterase/metabolism ; Animals ; Brain/cytology/enzymology/*pathology ; Cell Survival ; DNA/genetics ; Fibroblasts/metabolism/*transplantation ; Genetic Vectors ; Histocytochemistry ; Moloney murine leukemia virus/genetics ; Nerve Growth Factors/genetics/*physiology ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Direct gene transfer into mouse muscle in vivo (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-03-23
    Description: RNA and DNA expression vectors containing genes for chloramphenicol acetyltransferase, luciferase, and beta-galactosidase were separately injected into mouse skeletal muscle in vivo. Protein expression was readily detected in all cases, and no special delivery system was required for these effects. The extent of expression from both the RNA and DNA constructs was comparable to that obtained from fibroblasts transfected in vitro under optimal conditions. In situ cytochemical staining for beta-galactosidase activity was localized to muscle cells following injection of the beta-galactosidase DNA vector. After injection of the DNA luciferase expression vector, luciferase activity was present in the muscle for at least 2 months.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolff, J A -- Malone, R W -- Williams, P -- Chong, W -- Acsadi, G -- Jani, A -- Felgner, P L -- HD00669-05/HD/NICHD NIH HHS/ -- HD03352/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1990 Mar 23;247(4949 Pt 1):1465-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Waisman Center, University of Wisconsin, Madison 53706.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1690918" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Avian Sarcoma Viruses/genetics ; Beetles/genetics ; Chloramphenicol O-Acetyltransferase/biosynthesis/genetics ; DNA/genetics ; Escherichia coli/genetics ; *Gene Expression ; Genetic Vectors ; Histocytochemistry ; Luciferases/biosynthesis/genetics ; Mice ; Muscles/*enzymology ; RNA/genetics ; *Transfection ; beta-Galactosidase/biosynthesis/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Clonal characteristics of experimentally induced "atherosclerotic" lesions in the hybrid hare (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-12-21
    Description: The female hybrid hare (Lepus timidus x Lepus europaeus) is heterozygous for electrophoretically separable, X-linked isoenzymes of glucose-6-phosphate dehydrogenase. The isoenzymes of this animal have been used as cellular markers in the study of the clonal origins of experimentally induced atherosclerotic lesions. Aortic lesions produced in the hybrid hare by feeding cholesterol and injuring the aortic wall with a catheter have been shown to have polyclonal characteristics and in this way are fundamentally different from atherosclerotic fibrous plaques in man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pearson, T A -- Dillman, J -- Williams, K J -- Wolff, J A -- Adams, R -- Solez, K -- Heptinstall, R H -- Malmros, H -- Sternby, N -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1423-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/505016" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arteriosclerosis/enzymology/*pathology ; Catheterization/methods ; Clone Cells/enzymology/*pathology ; Diet, Atherogenic ; *Disease Models, Animal ; Glucosephosphate Dehydrogenase/metabolism ; Isoenzymes/metabolism ; Rabbits
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Co-transplantation of plasmid-transfected myoblasts and myotubes into rat brains enables high levels of gene expression long-term (1993)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: We have previously proposed the use of primary muscle cells as a "platform," or "vehicle" for intracerebral transgene expression. Brain grafts of minced muscle, or cultured muscle cells persisted in rat brains for at least 6 mo without any decrease in graft size, or tumor formation. Stable, but moderate levels of intracerebral transgene expression were obtained by transplanting plasmid-transfected myotubes in culture. In the present study, high and stable levels of intracerebral transgene expression were achieved by the co-transplantation of plasmid-transfected myoblasts and myotubes in culture. Approximately 5 X 10(5) myoblasts and myotubes were transfected with 10 micrograms pRSVL plasmid DNA, and 30 micrograms Lipofectin (BRL), respectively. They were mixed together (total cell number was 1 million), and stereotactically injected into the caudate nucleus of an adult rat brain. The activity of luciferase, the product of transgene expression, was stable for at least 4 mo, and much higher than the levels in myotube grafts, or co-grafts of myoblasts and minced muscle. Presumably, the myotubes served as a framework on which the myoblasts can form myotubes. The sections of brains transplanted with co-graft of myoblasts, and myotubes transfected with pRSVLac-Z were stained immunofluorescently for beta-galactosidase activity. The muscle grafts contained beta-galactosidase positive myofibers 4 mo after transplantation. Such high and stable levels of in vivo expression after postnatal gene transfer have rarely been achieved. Primary muscle cells are useful vehicle for transgene expression in brains, and potentially valuable for gene therapy of degenerative neurological disorders.
    Keywords: Life Sciences (General)
    Type: Cell transplantation (ISSN 0963-6897); Volume 2; 3; 185-92
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  • 5
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    Intracerebral transplants of primary muscle cells: a potential 'platform' for transgene expression in the brain (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: After the transplantation of rat primary muscle cells into the caudate or cortex of recipient rats, the muscle cells were able to persist for at least 6 months. Muscle cells transfected with expression plasmids prior to transplantation were able to express reporter genes in the brains for at least 2 months. These results suggest that muscle cells might be a useful 'platform' for transgene expression in the brain.
    Keywords: Life Sciences (General)
    Type: Brain research (ISSN 0006-8993); 575; 1; 143-7
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  • 6
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    Basaltic fissure eruptions, plume heights, and atmospheric aerosols (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Convective plumes that rise above Hawaiian-style fire fountains consist of volcanic gases, aerosols, fine ash, and entrained heated air. Plume theory has been applied to observational estimates of the rate of thermal energy release from large fire fountains. The theoretically predicted heights of maintained plumes agree very well with the heights found from actual observations. Predicted plume heights for both central-vent (point-source) and fissure (line-source) eruptions indicate a stratospheric penetration by plumes that form over vents with very high magma-production rates. Flood basalt fissure eruptions that produce individual lava flows with volumes greater than 100 cu km at very high mass eruption rates are capable of injecting large quantities of sulfate aerosols into the lower stratosphere, with potentially drastic short-term atmospheric consequences, like acid precipitation, darkening of the sky, and climatic cooling.
    Keywords: ENVIRONMENT POLLUTION
    Type: Geophysical Research Letters (ISSN 0094-8276); 13; 725-728
    Format: text
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