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  • American Association for the Advancement of Science (AAAS)  (16)
  • 1980-1984  (16)
  • 11
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    Virus-induced corticosterone in hypophysectomized mice: a possible lymphoid adrenal axis (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-24
    Description: Infection of hypophysectomized mice with Newcastle disease virus caused a time-dependent increase in corticosterone and interferon production. Prior treatment with dexamethasone completely inhibited the virus-induced elevation in corticosterone concentration, but did not significantly alter the interferon response. Lymphocytes appear to be the most likely source of an adrenocorticotropin-like substance that is responsible for the increased corticosterone, since spleen cells from the virus-infected, but not from control or dexamethasone-treated, hypophysectomized mice showed positive immunofluorescence with antibody to adrenocorticotropin-(1-13 amide). Thus the adrenocorticotropin-like material and interferon appear to be coordinately induced the differentially controlled products of different genes. These findings strongly suggest the existence of a lymphoid-adrenal axis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, E M -- Meyer, W J -- Blalock, J E -- AM30046/AM/NIADDK NIH HHS/ -- HL20201/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Dec 24;218(4579):1311-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6183748" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/*physiology ; Animals ; Corticosterone/*biosynthesis ; Dexamethasone/pharmacology ; *Hypophysectomy ; Interferons/biosynthesis ; Kinetics ; Lymph Nodes/*physiology ; Mice ; Newcastle Disease/*metabolism ; Time Factors
    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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  • 12
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    Breast imaging in coronal planes with simultaneous pulse echo and transmission ultrasound (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-04
    Description: Clear delineation of breast architecture was achieved with compound pulse echo ultrasound imaging in which the images were acquired in the coronal planes used for quantitative transmission ultrasonic computed tomography. Since most connective tissue planes in the breast radiate toward the nipple, compound scans from the sides of the breast record normal interfaces more consistently and reveal greater symmetries in normal portions of relatively full breasts than do conventional scans in sagittal or transverse planes. Simultaneous acquisition of the pulse echo images and images representing the local ultrasound attenuation coefficient and speed of ultrasound suggested complementary role for reflection and through-transmission images in breast cancer detection. The high quality of pulse echo images in coronal planes provides the potential for more complete pulse echo diagnosis and the basis for spatial correlation of lesions viewed in pulse echo and ultrasonic computed tomograms. These observations may permit routine ultrasonic computed tomography of the breast in the clinical setting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carson, P L -- Meyer, C R -- Scherzinger, A L -- Oughton, T V -- R01 CA 25323/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1141-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7302585" target="_blank"〉PubMed〈/a〉
    Keywords: Breast/*anatomy & histology ; Breast Neoplasms/*diagnosis ; Female ; Humans ; *Ultrasonography
    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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  • 13
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    Efferents to the retina have multiple sources in teleost fish (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-11-20
    Description: Multiple efferent systems project to the retina in three species of teleost fish investigated with the horseradish peroxidase technique. These animals are the first vertebrates shown to have more than one central nervous system structure projecting to the retina. The connections discovered may reflect a primitive organization of retina-brain interconnections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ebbesson, S O -- Meyer, D L -- New York, N.Y. -- Science. 1981 Nov 20;214(4523):924-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6171033" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axonal Transport ; Efferent Pathways/*physiology ; Fishes ; Horseradish Peroxidase ; Retina/*physiology ; Species Specificity
    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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  • 14
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    The great tumaco, Colombia earthquake of 12 december 1979 (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-01-30
    Description: Southwestern Colombia and northern Ecuador were shaken by a shal-low-focus earthquake on 12 December 1979. The magnitude 8 shock, located near Tumaco, Colombia, was the largest in northwestern South America since 1942 and had been forecast to fill a seismic gap. Thrust faulting occurred on a 280- by 130-kilometer rectangular patch of a subduction zone that dips east beneath the Pacific coast of Colombia. A 200-kilometer stretch of the coast tectonically subsided as much as 1.6 meters; uplift occurred offshore on the continental slope. A tsunami swept inland immediately after the earthquake. Ground shaking (intensity VI to IX) caused many buildings to collapse and generated liquefaction in sand fills and in Holocene beach, lagoonal, and fluvial deposits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Herd, D G -- Youd, T L -- Meyer, H -- C, J L -- Person, W J -- Mendoza, C -- New York, N.Y. -- Science. 1981 Jan 30;211(4481):441-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17816596" target="_blank"〉PubMed〈/a〉
    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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  • 15
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    Small nuclear RNA U2 is base-paired to heterogeneous nuclear RNA (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-30
    Description: Eukaryotic cells contain a set of low molecular weight nuclear RNA's. One of the more abundant of these is termed U2 RNA. The possibility that U2 RNA is hydrogen-bonded to complementary sequences in other nuclear RNA's was investigated. Cultured human (HeLa) cells were treated with a psoralen derivative that cross-links RNA chains that are base-paired with one another. High molecular weight heterogeneous nuclear RNA was isolated under denaturing conditions, and the psoralen cross-links were reversed. Electrophoresis of the released RNA and hybridization with a human cloned U2 DNA probe revealed that U2 is hydrogen-bonded to complementary sequences in heterogeneous nuclear RNA in vivo. In contrast, U2 RNA is not base-paired with nucleolar RNA, which contains the precursors of ribosomal RNA. The results suggest that U2 RNA participates in messenger RNA processing in the nucleus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calvet, J P -- Meyer, L M -- Pederson, T -- GM 21595/GM/NIGMS NIH HHS/ -- GM 27265/GM/NIGMS NIH HHS/ -- P30 12708/PHS HHS/ -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):456-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6178162" target="_blank"〉PubMed〈/a〉
    Keywords: Base Composition ; Cell Nucleolus/analysis ; Cross-Linking Reagents/pharmacology ; DNA, Recombinant ; HeLa Cells ; Humans ; Nucleic Acid Hybridization ; RNA/*analysis ; RNA, Heterogeneous Nuclear/*analysis ; RNA, Ribosomal/analysis ; RNA, Small Nuclear ; Trioxsalen/analogs & derivatives/pharmacology
    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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  • 16
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    Fish schools: an asset to corals (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-03
    Description: Schools of juvenile haemulid fish feed in sea grass beds at night. By day they rest over coral heads, where they excrete substantial quantities of ammonium and particulate nitrogen and phosphorus into the nutrient-poor waters. The percentages of these nutrients contributed by the fish were comparable to those from other sources. Coral heads with resident fish schools grew faster than those without resident schools, indicating that fish may be more beneficial to the corals than has been assumed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyer, J L -- Schultz, E T -- Helfman, G S -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1047-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17754550" target="_blank"〉PubMed〈/a〉
    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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