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  • Bücher
  • Artikel  (7)
  • Nucleic Acid Hybridization  (2)
  • Polymer and Materials Science  (2)
  • Rat  (2)
  • 42.80  (1)
  • 1985-1989  (7)
  • 1
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    HTLV-III infection in brains of children and adults with AIDS encephalopathy (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1985-01-11
    Beschreibung: Unexplained debilitating dementia or encephalopathy occurs frequently in adults and children with the acquired immune deficiency syndrome (AIDS). Brains from 15 individuals with AIDS and encephalopathy were examined by Southern analysis and in situ hybridization for the presence of human T-cell leukemia (lymphotropic) virus type III (HTLV-III), the virus believed to be the causative agent of AIDS. HTLV-III DNA was detected in the brains of five patients, and viral-specific RNA was detected in four of these. In view of these findings and the recent demonstration of morphologic and genetic relatedness between HTLV-III and visna virus, a lentivirus that causes a chronic degenerative neurologic disease in sheep, HTLV-III should be evaluated further as a possible cause of AIDS encephalopathy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shaw, G M -- Harper, M E -- Hahn, B H -- Epstein, L G -- Gajdusek, D C -- Price, R W -- Navia, B A -- Petito, C K -- O'Hara, C J -- Groopman, J E -- New York, N.Y. -- Science. 1985 Jan 11;227(4683):177-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2981429" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acquired Immunodeficiency Syndrome/microbiology ; Adult ; Antibodies, Viral/analysis ; Brain Diseases/*microbiology ; Cerebral Cortex/analysis/*microbiology ; Child ; Deltaretrovirus/*isolation & purification ; Dementia/microbiology ; Female ; Humans ; Infant ; Male ; Middle Aged ; Nucleic Acid Hybridization ; RNA, Viral/analysis
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Individual tumors of multifocal EB virus-induced malignant lymphomas in tamarins arise from different B-cell clones (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1985-05-10
    Beschreibung: Cotton-top tamarins were inoculated with sufficient Epstein-Barr virus to induce multiple tumors in each animal within 14 to 21 days. The tumors consisted of large-cell lymphomas that contained multiple copies of the Epstein-Barr virus genome and generated Epstein-Barr virus-carrying cell lines showing no detectable consistent chromosomal abnormality. Hybridization of tumor DNA with immunoglobulin gene probes revealed that each lymphoma was oligo- or monoclonal in origin and that individual tumors from the same animal arose from different B-cell clones. Thus the virus induced multiple transformation events in tamarins in vivo to cause malignant tumors resembling the Epstein-Barr virus-associated lymphomas of patients with organ transplants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cleary, M L -- Epstein, M A -- Finerty, S -- Dorfman, R F -- Bornkamm, G W -- Kirkwood, J K -- Morgan, A J -- Sklar, J -- CA 34233/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 May 10;228(4700):722-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2986287" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; B-Lymphocytes/*microbiology ; Burkitt Lymphoma/genetics/*microbiology ; Cell Line ; DNA, Neoplasm/genetics ; Heart Transplantation ; Herpesvirus 4, Human ; Humans ; Neoplasms, Experimental/genetics/microbiology ; Nucleic Acid Hybridization ; Saguinus
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Resonant generation of even-order harmonics in metal vapors (1985)
    Springer
    Applied physics 36 (1985), S. 53-54 
    Details
    ISSN: 1432-0649
    Schlagwort(e): 42.65 ; 42.80
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Generation of the second- and fourth-order harmonics of laser radiation is reported in Mg vapor at the forbidden 3s 21 S o–4s 1 S o transition. The conversion efficiency for the second-order harmonics has been measured to be ∼ 10−2% and for the fourth one ∼ 10−8%.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00698036
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Immunological detection of a cysteine protease in the skin and other tissues (1985)
    Springer
    Cell & tissue research 240 (1985), S. 417-423 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Cysteine protease ; Epidermal cells ; Antigen localization ; Cell differentiation ; Antigen distribution ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Monospecific antibody directed to cysteine protease of 2-day-old rat epidermis recently characterized as being different from the proteases previously reported was produced in rabbits. By immunofluorescence microscopy and immunoperoxidase staining with an avidin-biotin-peroxidase method the protease was found to be present in the epidermis of rodents of different ages as well as that of humans, but not in the dermis. The staining in germinative cells was more intense than in cells in the superficial layers. It appeared as irregular patches in the nuclei and stained more diffusely in the cytoplasm where small granular components, strongly stained, were identified. The staining patterns in granular cells showed accumulation of the antigen in a granular form. The morphology and distribution of granules resembled those of keratohyalin-like granules in the nucleus and dense homogenous deposits in the cytoplasm. In cornified cells the reaction product was localized by the plasma membrane where concentration of the dense homogenous deposits occurred, suggesting that the cysteine protease is one component of the unique and characteristic structure of differentiated keratinocytes. In addition, the cysteine protease antigen having the same molecular weight as the epidermal enzyme was detected in liver, kidney and lung indicating a wider tissue distribution of the protease. The significance of the protease in regulation of cellular functions remains to be investigated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00222354
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    The highly modified membrane of cornified cells in stratified squamous epithelia: A comparison of heterogenous deposits in keratinized and nonkeratinized epithelia (1987)
    Springer
    Cell & tissue research 249 (1987), S. 331-336 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Cell membrane ; Transglutaminase ; Cysteine ; proteinase inhibitor ; Epithelium ; Rat
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The chemical nature of the thickened plasma membrane of cornified cells in stratified squamous epithelium was investigated in comparison with that in noncornified epithelium. Localizations of transglutaminase, molecular weight 92000 daltons, and detection of epidermal cysteine proteinase inhibitor were effected with a monoclonal antibody and a monospecific rabbit anti-inhibitor immunoglobulin, respectively, directed to the antigens. N-(7-dimethylamino-4-methylcoumarinyl) maleimide was used to demonstrate S-S cross-linking. In all keratinizing epithelia, the enzyme and inhibitor were deposited on membranes of granular cells. S-S bonds were formed in cornification with the appearance of electron-dense material by the inner leaflet. Both enzyme and inhibitors occurred on the corneal epithelium, but S-S linkage and the thickened plasma membrane did not form even at the last stage of maturation. On the other hand, the internal vaginal epithelium in the proestrous stage without keratinization contained the enzyme, but neither inhibitor nor S-S linkage. Both antigens and S-S bonds were detected when keratinization proceeded during estrus. The staining patterns in the epithelium near the vaginal introitus were identical to those in the skin. Cuboidal and simple epithelia exhibited none of those constituents. The findings indicated that heterogenous components contribute to modification of the plasma membrane of cornified cells, but S-S cross-linkages are associated exclusively with formation of the ultrastructurally unique membrane structure. In addition, findings suggested hormonal regulation in the chemical modification of the membrane in estrogen-sensitive internal vaginal epithelium.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00215516
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Cellulose hydrolysis after combined action of high pressure and shear deformation (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 34 (1987), S. 677-687 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1987.070340221
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Brain biocompatibility of a biodegradable, controlled-release polymer in rats (1989)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 23 (1989), S. 253-266 
    Details
    ISSN: 0021-9304
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin , Technik allgemein
    Notizen: We report the biocompatibility in the rat brain of a controlled-release, biodegradable polymer, the polyanhydride poly-[bis(p-carboxyphenoxy)propane-sebacic acid] copolymer (PCPP-SA) in a 20:80 formulation. The biodegradable polyanhydride can be used for drug delivery directly into the brain, circumventing the difficulties posed by the blood - brain barrier and avoiding the consequences of having to administer toxic doses systemically to reach therapeutic doses in the central nervous system. The tissue reaction in the presence of PCPP-SA was compared to that seen with other standard neurosurgical implants. Fifty-six adult Sprague-Dawley rats were assigned to one of seven groups and underwent bilateral frontal lobe implantation of PCPP-SA (42 hemispheres), Surgicel (oxidized regenerated cellulose) (35 hemispheres), or Gelfoam (absorbable gelatin sponge) (35 hemispheres). None of the animals showed any behavioral changes or neurological deficits suggestive of either systemic or localized toxicity from the biodegradable polyanhydride, all surviving to the scheduled data of sacrifice. PCPP-SA evoked a well localized inflammatory reaction, comparable to that of Surgicel, which resolved as the PCPP-SA polymer degraded over five weeks. The biodegradable polyanhydride has been shown in this study to be nontoxic and biocompatible in the rat brain, when compared to standard neurosurgical implants.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jbm.820230209
    Standort Signatur Erwartet Verfügbarkeit
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